This article analyzes the application strategies of Building Information Modeling(BIM)support technology in a first-class highway reconstruction and expansion project based on its actual situation.According to the bas...This article analyzes the application strategies of Building Information Modeling(BIM)support technology in a first-class highway reconstruction and expansion project based on its actual situation.According to the basic situation of BIM technology and its application goals in this project,it explores application strategies such as BIM model construction,BIM prefabricated structural model deepening and schedule simulation,BIM collision detection,and BIM tunnel pre-construction simulation.Through this analysis,it is hoped to provide a reference for the rational application of BIM support technology and ensure the high-quality and efficient completion of first-class highway reconstruction and expansion projects.展开更多
[Objective] To analyze the key factor in agricultural technology diffusion- technology support, and to explore the method to quicken the diffusion of agricultural technology. [Method] The technology acquisition advant...[Objective] To analyze the key factor in agricultural technology diffusion- technology support, and to explore the method to quicken the diffusion of agricultural technology. [Method] The technology acquisition advantage of social network was il- lustrated by summarizing the status and characteristics of agricultural technology and technology supporting types in the process of agriculture technology diffusion. [Result] The multi-layer, complex, persistence, systematization features of agricultural technol- ogy require support and help of technology from surrounding social network to ulti- mately internalize the technology. [Conclusion] Using social networks for the technol- ogy support will be a powerful supplement to the system of agricultural technology diffusion.展开更多
Soft rock surrounding deep roadway has poor stability and long-term rheological effect. More and larger deformation problems of surrounding rock occur due to adverse supporting measures for such roadways, which not on...Soft rock surrounding deep roadway has poor stability and long-term rheological effect. More and larger deformation problems of surrounding rock occur due to adverse supporting measures for such roadways, which not only affects the engineering safety critically but also improves the maintenance costs. This paper takes the main rail roadway with severely deformation in China＇s Zaoquan coal mine as an example to study the long-term deformation tendency and damage zone by means of in-situ deformation monitoring and acoustic wave testing technique. A three-dimensional finite element model reflecting the engineering geological condition and initial design scheme is established by ABAQUS. Then, on the basis of field monitoring deformation data, the surrounding rock geotechnical and theological parameters of the roadway are obtained by back analysis. A combined supporting technology with U-shaped steel support and anchor-grouting is proposed for the surrounding soft rock. The numerical simulation of the combined supporting technology and in-situ deformation monitoring results show that the soft rock surrounding the roadway has been held effectively.展开更多
For the engineering geology conditions of bad mine roadway roof and floor lithology in extremely weak cemented strata, the best section shape of the roadway is determined from the study of tunnel surrounding rock disp...For the engineering geology conditions of bad mine roadway roof and floor lithology in extremely weak cemented strata, the best section shape of the roadway is determined from the study of tunnel surrounding rock displacement, plastic zone and stress distribution in rectangular, circle arch and arch wall sections, respectively. Based on the mining depth and thickness of the coal seam, roadway support technology solutions with different buried depth and thickness of coal seam are proposed. Support schemes are amended and optimized in time through monitoring data of the deformation of roadway, roof separation, l-beam bracket, bolt and anchor cable force to ensure the long-term stability and security of the roadway surrounding rock and support structure. The monitoring results show that mine roadway support schemes for different buried depth and section can be adapted to the characteristics of ground pressure and deformation of the surrounding rock in different depth well, effectively control the roadway surrounding rock deformation and the floor heave and guarantee the safety of construction and basic stability of surrounding rock and support structure.展开更多
When computers and communication devices are available everywhere in the future, the categories of communication will expand to cover not only the man-man and the man-machine, but also the machine-machine (M2M) commun...When computers and communication devices are available everywhere in the future, the categories of communication will expand to cover not only the man-man and the man-machine, but also the machine-machine (M2M) communication. Someday, the traffic generated by machines will greatly exceed those of man-machine and man-man applications. Large numbers of M2M applications will need various wireless networks to support them. This paper introduces the characteristics, advantages and disadvantages of the currently available various wireless network technologies, including WiFi, Bluetooth, ZigBee, passive RFID and the 802.15 standard networks.展开更多
The paper introduces two typical 3G services:the mobile multimedia short message service and the streaming media service. The former is considered as a strong driving force to promote the development of 3G services an...The paper introduces two typical 3G services:the mobile multimedia short message service and the streaming media service. The former is considered as a strong driving force to promote the development of 3G services and applications.The latter is regarded as a typical service on future 3G networks.As supporting technologies of 3G services,open service architecture and open mobile architecture are also discussed.展开更多
With the advancement of education informatization,learning through the internet has become a very important approach.Existing teaching websites generally have problems such as low accuracy of information grouping and ...With the advancement of education informatization,learning through the internet has become a very important approach.Existing teaching websites generally have problems such as low accuracy of information grouping and obvious disconnection between the navigation system and content.Based on information architecture,a teaching website for early warning technical support specialty is designed in this paper from four aspects:content organization,identification,navigation,and interaction.The unification of information processing and information requirements is achieved using this method,which improves the quality of professional course construction for early warning technology support specialty.展开更多
As an important transportation hub in China,the traffic volume and driving speed are important aspects of expressways.Therefore,the protection requirements for roadbed side slopes are higher,and it is necessary to res...As an important transportation hub in China,the traffic volume and driving speed are important aspects of expressways.Therefore,the protection requirements for roadbed side slopes are higher,and it is necessary to resist rainwater erosion and other damages by protecting the side slopes.Therefore,it is necessary to adopt effective technical means of subgrade protection and support.This paper mainly summarizes the characteristics of highway subgrade slope protection construction and slope protection and support technologies.展开更多
In order to ensure that civil engineering can be completed with quality and quantity, we must make full use of slope support technology. This technology can better ensure the improvement of civil engineering quality, ...In order to ensure that civil engineering can be completed with quality and quantity, we must make full use of slope support technology. This technology can better ensure the improvement of civil engineering quality, reduce the impact on the surrounding environment in the process of support, and provide an important guarantee for the operation and development of the whole project. Therefore, in the specific application process, the nature of various factors should be comprehensively analyzed to ensure that the applied slope support scheme can meet the actual requirements of the site, so as to ensure the optimization and perfection of the site construction environment and the normal and orderly connection and cooperation of each process.展开更多
Coal mining enterprise is an important driving force to support the stable development of the country, in order to ensure the efficient mining operation, meet the needs of social diversification. In order to guarantee...Coal mining enterprise is an important driving force to support the stable development of the country, in order to ensure the efficient mining operation, meet the needs of social diversification. In order to guarantee the coal mine life better extension, thus smooth replace continuous production has gradually turned to geological complex area mining, coal mine in mining for coal mining, in tunneling support technology must be more strict and deep, to adapt to the complex geological environment, is beneficial to improve the comprehensive economic benefits of coal mine.展开更多
In the process of modernization, there are many technologies in the construction of water conservancy projects, among which the slope excavation and support technology is a basic and important technology, which has a ...In the process of modernization, there are many technologies in the construction of water conservancy projects, among which the slope excavation and support technology is a basic and important technology, which has a good application effect on the whole construction period, so it is necessary to carry out relevant research and analysis. In the normal construction process, because of the geographical location, water conservancy projects are different from conventional projects, some are turbulent rivers, and some are steep slopes. Only by using safe, reliable, scientific and reasonable slope excavation and support technology in the construction process, can we better promote the smooth construction of water conservancy projects, and further reflect its value.展开更多
With the continuous development of China's economy and society, people's demand for various resources is increasing, especially the utilization of coal resources at this stage.?For China, China is rich in coal...With the continuous development of China's economy and society, people's demand for various resources is increasing, especially the utilization of coal resources at this stage.?For China, China is rich in coal resources, but the geographical location difference is great.?Coal mining is affected by geological conditions, and mining is difficult.?At present, strengthening the research of complex geological conditions and coal mining and its supporting technology can not only improve the efficiency of coal mining in practice, but also better meet the needs of the current society for developed resources.?In order to improve the mining efficiency and meet the needs of the society for the development of coal resources, this paper studies the coal mining and its supporting technologies under complex geological conditions.展开更多
With the development of water conservancy and hydropower, all kinds of advanced technology can be applied, and slope excavation and support technology is the key technology, which can better improve the safety of slop...With the development of water conservancy and hydropower, all kinds of advanced technology can be applied, and slope excavation and support technology is the key technology, which can better improve the safety of slope excavation. Due to the complexity of slope geological environment and potential instability risk factors, it is necessary to formulate scientific excavation and support scheme, and do a good job in excavation and support construction supervision, so as to effectively reduce the risk of slope collapse. Based on this, this paper briefly introduces the preparation work of slope excavation and support in water conservancy and hydropower construction, and deeply discusses the application points of slope excavation and support technology, hoping that the research content can inspire the relevant practitioners.展开更多
With the development of Chinese economy, the expansion of industry, the need for energy is also growing. As one of the traditional energy sources in China, coal resources have been widely concerned by the society. Roa...With the development of Chinese economy, the expansion of industry, the need for energy is also growing. As one of the traditional energy sources in China, coal resources have been widely concerned by the society. Roadway tunneling and support technology are an important part of the process of coal mining, and effective analysis and utilization of it is a prerequisite for mining deep buried coal mines. At the same time, the safety of coal mining is an important issue that people pay attention to, and the application of strengthening support technology can effectively guarantee the safety of coal mining. Therefore, roadway tunneling and support technology is of great significance to the development of coal mining engineering. This paper takes the roadway excavation and support technology as the main argument, and explains in detail its application in the coal mine adoption engineering, as well as the future development suggestion, in order to provide a theoretical basis for the better development of coal mining engineering.展开更多
The further development of society depends on the support of energy. Based on China's economic construction system, the importance of coal mines can not be ignored. With the increasing demand for coal, the demand ...The further development of society depends on the support of energy. Based on China's economic construction system, the importance of coal mines can not be ignored. With the increasing demand for coal, the demand for mining is also increasing. Therefore, it is necessary to maintain the safety and stability of coal mining with the help of tunneling support technology, and complete the core goal of coal mining under complex geological conditions. Based on this, this paper explores the efficient coal mine excavation support technology in complex terrain, hoping to provide some feasible reference opinions for the majority of colleagues.展开更多
Hydropower projects are an important part of our infrastructure construction process. In the process of achieving concrete results, we must continue to keep pace with the times, combine with the actual situation, and ...Hydropower projects are an important part of our infrastructure construction process. In the process of achieving concrete results, we must continue to keep pace with the times, combine with the actual situation, and make more effective use of new construction technology. Of all the construction technology, the application effect of excavation and foundation treatment technology is very important, can effectively solve the complicated construction problems in hydropower project construction, effectively shorten the construction period, improve the quality of d on this basis, this paper emphatically introduces the supporting technology of the main methods of slope excavation and its concrete application in hydropower project construction.展开更多
Municipal civil engineering is the key content of municipal construction,and the construction scale is usually large.The quality of the project plays an important role in the development of urban economy.Due to the ra...Municipal civil engineering is the key content of municipal construction,and the construction scale is usually large.The quality of the project plays an important role in the development of urban economy.Due to the rapid increase of high-rise buildings,skyscrapers and underground buildings,the construction technology of deep foundation pit support has gradually become an indispensable construction technology.Therefore,the selection of foundation pit support construction technology is crucial in ensuring that whether the foundation is firm and stable,and whether the subsequent construction activities can be carried out smoothly.In view of this,the article discusses the application of deep foundation pit support construction technology in municipal civil engineering,aiming to provide reference for subsequent projects.展开更多
The effective application of foundation pit support construction technology in civil construction can fundamentally solve the problems of construction engineering which is not stable enough and the follow-up construct...The effective application of foundation pit support construction technology in civil construction can fundamentally solve the problems of construction engineering which is not stable enough and the follow-up construction safety cannot be guaranteed, which has always been the focus of the field of construction engineering. The actual construction foundation pit support work has a strong systematic system which involves a wide range of contents and disciplines. The foundation pit support project at the current stage can be based on the perspective of function, continuously promote the coordination of each part and provide an effective guarantee for the safety and economy of the foundation pit support.展开更多
In view of the disadvantages of vibration safety monitoring technology for offshore wind turbines,a new method is proposed to obtain deformation information of towering and dynamic targets in real-time by the ground-b...In view of the disadvantages of vibration safety monitoring technology for offshore wind turbines,a new method is proposed to obtain deformation information of towering and dynamic targets in real-time by the ground-based interferometric ra-dar(GBIR).First,the working principle and unique advantages of the GBIR system are introduced.Second,the offshore wind turbines in Rongcheng,Shandong Province are selected as the monitoring objects for vibration safety monitoring,and the GPRI-II portable radar interferometer is used for the health diagnosis of these wind turbines.Finally,the interpretation method and key processing flow of data acquisition are described in detail.This experiment shows that the GBIR system can accurately identify the millimeter-scale vibration deformation of offshore wind turbines and can quickly obtain overall time series deformation images of the target bodies,which demonstrate the high-precision deformation monitoring ability of the GBIR technology.The accuracy meets the requirements of wind turbine vibration monitoring,and the method is an effective spatial deformation monitoring means for high-rise and dynamic targets.This study is beneficial for the further enrichment and improvement of the technical system of wind turbine vibration safety monitoring in China.It also provides data and technical support for offshore power engineering management and control,health diagnosis,and disaster prevention and mitigation.展开更多
文摘This article analyzes the application strategies of Building Information Modeling(BIM)support technology in a first-class highway reconstruction and expansion project based on its actual situation.According to the basic situation of BIM technology and its application goals in this project,it explores application strategies such as BIM model construction,BIM prefabricated structural model deepening and schedule simulation,BIM collision detection,and BIM tunnel pre-construction simulation.Through this analysis,it is hoped to provide a reference for the rational application of BIM support technology and ensure the high-quality and efficient completion of first-class highway reconstruction and expansion projects.
基金Supported by the National Social Science Foundation of China:the Sociological Study on the Technology Adoption Behaviors of Farmers(08BSH049)~~
文摘[Objective] To analyze the key factor in agricultural technology diffusion- technology support, and to explore the method to quicken the diffusion of agricultural technology. [Method] The technology acquisition advantage of social network was il- lustrated by summarizing the status and characteristics of agricultural technology and technology supporting types in the process of agriculture technology diffusion. [Result] The multi-layer, complex, persistence, systematization features of agricultural technol- ogy require support and help of technology from surrounding social network to ulti- mately internalize the technology. [Conclusion] Using social networks for the technol- ogy support will be a powerful supplement to the system of agricultural technology diffusion.
基金Projects(51409154,41772299)supported by the National Natural Science Foundation of ChinaProject(J16LG03)supported by the Shandong Province Higher Educational Science and Technology Program,China+1 种基金Projects(2015JQJH106,2014TDJH103)supported by the SDUST Research Fund,ChinaProject(201630576)supported by the Tai’an Scientific and Technologic Development Project,China
文摘Soft rock surrounding deep roadway has poor stability and long-term rheological effect. More and larger deformation problems of surrounding rock occur due to adverse supporting measures for such roadways, which not only affects the engineering safety critically but also improves the maintenance costs. This paper takes the main rail roadway with severely deformation in China＇s Zaoquan coal mine as an example to study the long-term deformation tendency and damage zone by means of in-situ deformation monitoring and acoustic wave testing technique. A three-dimensional finite element model reflecting the engineering geological condition and initial design scheme is established by ABAQUS. Then, on the basis of field monitoring deformation data, the surrounding rock geotechnical and theological parameters of the roadway are obtained by back analysis. A combined supporting technology with U-shaped steel support and anchor-grouting is proposed for the surrounding soft rock. The numerical simulation of the combined supporting technology and in-situ deformation monitoring results show that the soft rock surrounding the roadway has been held effectively.
基金Financial support for this work, provided by the Major Program of the National Natural Science Foundation of China (Nos. 51174196 and 51204168)the Program for New Century Excellent Talents in University by Ministry of Education of China (No. NCET-07-0519)
文摘For the engineering geology conditions of bad mine roadway roof and floor lithology in extremely weak cemented strata, the best section shape of the roadway is determined from the study of tunnel surrounding rock displacement, plastic zone and stress distribution in rectangular, circle arch and arch wall sections, respectively. Based on the mining depth and thickness of the coal seam, roadway support technology solutions with different buried depth and thickness of coal seam are proposed. Support schemes are amended and optimized in time through monitoring data of the deformation of roadway, roof separation, l-beam bracket, bolt and anchor cable force to ensure the long-term stability and security of the roadway surrounding rock and support structure. The monitoring results show that mine roadway support schemes for different buried depth and section can be adapted to the characteristics of ground pressure and deformation of the surrounding rock in different depth well, effectively control the roadway surrounding rock deformation and the floor heave and guarantee the safety of construction and basic stability of surrounding rock and support structure.
文摘When computers and communication devices are available everywhere in the future, the categories of communication will expand to cover not only the man-man and the man-machine, but also the machine-machine (M2M) communication. Someday, the traffic generated by machines will greatly exceed those of man-machine and man-man applications. Large numbers of M2M applications will need various wireless networks to support them. This paper introduces the characteristics, advantages and disadvantages of the currently available various wireless network technologies, including WiFi, Bluetooth, ZigBee, passive RFID and the 802.15 standard networks.
文摘The paper introduces two typical 3G services:the mobile multimedia short message service and the streaming media service. The former is considered as a strong driving force to promote the development of 3G services and applications.The latter is regarded as a typical service on future 3G networks.As supporting technologies of 3G services,open service architecture and open mobile architecture are also discussed.
基金This research was supported by the College HOUJI Foundation Project(Grant Number:HJGC2021015).
文摘With the advancement of education informatization,learning through the internet has become a very important approach.Existing teaching websites generally have problems such as low accuracy of information grouping and obvious disconnection between the navigation system and content.Based on information architecture,a teaching website for early warning technical support specialty is designed in this paper from four aspects:content organization,identification,navigation,and interaction.The unification of information processing and information requirements is achieved using this method,which improves the quality of professional course construction for early warning technology support specialty.
文摘As an important transportation hub in China,the traffic volume and driving speed are important aspects of expressways.Therefore,the protection requirements for roadbed side slopes are higher,and it is necessary to resist rainwater erosion and other damages by protecting the side slopes.Therefore,it is necessary to adopt effective technical means of subgrade protection and support.This paper mainly summarizes the characteristics of highway subgrade slope protection construction and slope protection and support technologies.
文摘In order to ensure that civil engineering can be completed with quality and quantity, we must make full use of slope support technology. This technology can better ensure the improvement of civil engineering quality, reduce the impact on the surrounding environment in the process of support, and provide an important guarantee for the operation and development of the whole project. Therefore, in the specific application process, the nature of various factors should be comprehensively analyzed to ensure that the applied slope support scheme can meet the actual requirements of the site, so as to ensure the optimization and perfection of the site construction environment and the normal and orderly connection and cooperation of each process.
文摘Coal mining enterprise is an important driving force to support the stable development of the country, in order to ensure the efficient mining operation, meet the needs of social diversification. In order to guarantee the coal mine life better extension, thus smooth replace continuous production has gradually turned to geological complex area mining, coal mine in mining for coal mining, in tunneling support technology must be more strict and deep, to adapt to the complex geological environment, is beneficial to improve the comprehensive economic benefits of coal mine.
文摘In the process of modernization, there are many technologies in the construction of water conservancy projects, among which the slope excavation and support technology is a basic and important technology, which has a good application effect on the whole construction period, so it is necessary to carry out relevant research and analysis. In the normal construction process, because of the geographical location, water conservancy projects are different from conventional projects, some are turbulent rivers, and some are steep slopes. Only by using safe, reliable, scientific and reasonable slope excavation and support technology in the construction process, can we better promote the smooth construction of water conservancy projects, and further reflect its value.
文摘With the continuous development of China's economy and society, people's demand for various resources is increasing, especially the utilization of coal resources at this stage.?For China, China is rich in coal resources, but the geographical location difference is great.?Coal mining is affected by geological conditions, and mining is difficult.?At present, strengthening the research of complex geological conditions and coal mining and its supporting technology can not only improve the efficiency of coal mining in practice, but also better meet the needs of the current society for developed resources.?In order to improve the mining efficiency and meet the needs of the society for the development of coal resources, this paper studies the coal mining and its supporting technologies under complex geological conditions.
文摘With the development of water conservancy and hydropower, all kinds of advanced technology can be applied, and slope excavation and support technology is the key technology, which can better improve the safety of slope excavation. Due to the complexity of slope geological environment and potential instability risk factors, it is necessary to formulate scientific excavation and support scheme, and do a good job in excavation and support construction supervision, so as to effectively reduce the risk of slope collapse. Based on this, this paper briefly introduces the preparation work of slope excavation and support in water conservancy and hydropower construction, and deeply discusses the application points of slope excavation and support technology, hoping that the research content can inspire the relevant practitioners.
文摘With the development of Chinese economy, the expansion of industry, the need for energy is also growing. As one of the traditional energy sources in China, coal resources have been widely concerned by the society. Roadway tunneling and support technology are an important part of the process of coal mining, and effective analysis and utilization of it is a prerequisite for mining deep buried coal mines. At the same time, the safety of coal mining is an important issue that people pay attention to, and the application of strengthening support technology can effectively guarantee the safety of coal mining. Therefore, roadway tunneling and support technology is of great significance to the development of coal mining engineering. This paper takes the roadway excavation and support technology as the main argument, and explains in detail its application in the coal mine adoption engineering, as well as the future development suggestion, in order to provide a theoretical basis for the better development of coal mining engineering.
文摘The further development of society depends on the support of energy. Based on China's economic construction system, the importance of coal mines can not be ignored. With the increasing demand for coal, the demand for mining is also increasing. Therefore, it is necessary to maintain the safety and stability of coal mining with the help of tunneling support technology, and complete the core goal of coal mining under complex geological conditions. Based on this, this paper explores the efficient coal mine excavation support technology in complex terrain, hoping to provide some feasible reference opinions for the majority of colleagues.
文摘Hydropower projects are an important part of our infrastructure construction process. In the process of achieving concrete results, we must continue to keep pace with the times, combine with the actual situation, and make more effective use of new construction technology. Of all the construction technology, the application effect of excavation and foundation treatment technology is very important, can effectively solve the complicated construction problems in hydropower project construction, effectively shorten the construction period, improve the quality of d on this basis, this paper emphatically introduces the supporting technology of the main methods of slope excavation and its concrete application in hydropower project construction.
文摘Municipal civil engineering is the key content of municipal construction,and the construction scale is usually large.The quality of the project plays an important role in the development of urban economy.Due to the rapid increase of high-rise buildings,skyscrapers and underground buildings,the construction technology of deep foundation pit support has gradually become an indispensable construction technology.Therefore,the selection of foundation pit support construction technology is crucial in ensuring that whether the foundation is firm and stable,and whether the subsequent construction activities can be carried out smoothly.In view of this,the article discusses the application of deep foundation pit support construction technology in municipal civil engineering,aiming to provide reference for subsequent projects.
文摘The effective application of foundation pit support construction technology in civil construction can fundamentally solve the problems of construction engineering which is not stable enough and the follow-up construction safety cannot be guaranteed, which has always been the focus of the field of construction engineering. The actual construction foundation pit support work has a strong systematic system which involves a wide range of contents and disciplines. The foundation pit support project at the current stage can be based on the perspective of function, continuously promote the coordination of each part and provide an effective guarantee for the safety and economy of the foundation pit support.
基金This research was funded by the Public Science and Technology Research Funds Projects of Ocean(No.201405028)the Scientific Research Project of Shandong Electric Power Engineering Consulting Institute Co.,Ltd.(No.2020-059).
文摘In view of the disadvantages of vibration safety monitoring technology for offshore wind turbines,a new method is proposed to obtain deformation information of towering and dynamic targets in real-time by the ground-based interferometric ra-dar(GBIR).First,the working principle and unique advantages of the GBIR system are introduced.Second,the offshore wind turbines in Rongcheng,Shandong Province are selected as the monitoring objects for vibration safety monitoring,and the GPRI-II portable radar interferometer is used for the health diagnosis of these wind turbines.Finally,the interpretation method and key processing flow of data acquisition are described in detail.This experiment shows that the GBIR system can accurately identify the millimeter-scale vibration deformation of offshore wind turbines and can quickly obtain overall time series deformation images of the target bodies,which demonstrate the high-precision deformation monitoring ability of the GBIR technology.The accuracy meets the requirements of wind turbine vibration monitoring,and the method is an effective spatial deformation monitoring means for high-rise and dynamic targets.This study is beneficial for the further enrichment and improvement of the technical system of wind turbine vibration safety monitoring in China.It also provides data and technical support for offshore power engineering management and control,health diagnosis,and disaster prevention and mitigation.
