This paper discusses the digital application and benefit analysis of building information model(BIM)technology in the large-scale comprehensive development project of the Guangxi headquarters base.The project covers a...This paper discusses the digital application and benefit analysis of building information model(BIM)technology in the large-scale comprehensive development project of the Guangxi headquarters base.The project covers a total area of 92,100 square meters,with a total construction area of 379,700 square meters,including a variety of architectural forms.Through three-dimensional modeling and simulation analysis,BIM technology significantly enhances the design quality and efficiency,shortens the design cycle by about 20%,and promotes the collaboration and integration of project management,improving the management efficiency by about 25%.During the construction phase,the collision detection and four-dimensional visual management functions of BIM technology have improved construction efficiency by about 15%and saved the cost by about 10%.In addition,BIM technology has promoted green building and sustainable development,achieved the dual improvement of technical and economic indicators and social and economic benefits,set an example for enterprises in digital transformation,and opened up new market businesses.展开更多
In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C...In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C.quinoa Willd.varieties needs to be strengthened;second,it is insufficient to master the training environment and cultivation techniques;third,the large-scale planting of C.quinoa Willd.is not enough;fourth,the degree of mechanization of C.quinoa Willd.planting is not enough.In view of the above situation,this paper puts forward the following effective suggestions to strengthen the large-scale development of C.quinoa Willd.:the first is to increase the investment in C.quinoa Willd.variety research;the second is to strengthen the analysis of introduction and screening of C.quinoa Willd.varieties;the third is to study the best planting environment and cultivation techniques of C.quinoa Willd.;the fourth is to increase the scale of mechanized production of C.quinoa Willd.;the fifth is to increase the research and development of C.quinoa Willd.related products and their deep processing technology.展开更多
The Lower Cambrian Longwangmiao Fm gas reservoir in Moxi block of the Anyue Gas field,Sichuan Basin,is the largest single-sandbody integrated carbonate gas reservoir proved so far in China.Notwithstanding this reservo...The Lower Cambrian Longwangmiao Fm gas reservoir in Moxi block of the Anyue Gas field,Sichuan Basin,is the largest single-sandbody integrated carbonate gas reservoir proved so far in China.Notwithstanding this reservoir's advantages like large-scale reserves and high singlewell productivity,there are multiple complicated factors restricting its efficient development,such as a median content of hydrogen sulfide,low porosity and strong heterogeneity of fractureecave formation,various modes of gasewater occurrences,and close relation between overpressure and stress sensitivity.Up till now,since only a few Cambrian large-scale carbonate gas reservoirs have ever been developed in the world,there still exists some blind spots especially about its exploration and production rules.Besides,as for large-scale sulfur gas reservoirs,the exploration and construction is costly,and production test in the early evaluation stage is severely limited,all of which will bring about great challenges in productivity construction and high potential risks.In this regard,combining with Chinese strategic demand of strengthening clean energy supply security,the PetroChina Southwest Oil&Gas Field Company has carried out researches and field tests for the purpose of providing highproduction wells,optimizing development design,rapidly constructing high-quality productivity and upgrading HSE security in the Longwangmiao Fm gas reservoir in Moxi block.Through the innovations of technology and management mode within 3 years,this gas reservoir has been built into a modern large-scale gas field with high quality,high efficiency and high benefit,and its annual capacity is now up to over 100×10^(8)m^(3),with a desirable production capacity and development indexes gained as originally anticipated.It has become a new model of large-scale gas reservoirs with efficient development,providing a reference for other types of gas reservoirs in China.展开更多
Resource allocation for an equipment development task is a complex process owing to the inherent characteristics,such as large amounts of input resources,numerous sub-tasks,complex network structures,and high degrees ...Resource allocation for an equipment development task is a complex process owing to the inherent characteristics,such as large amounts of input resources,numerous sub-tasks,complex network structures,and high degrees of uncertainty.This paper presents an investigation into the influence of resource allocation on the duration and cost of sub-tasks.Mathematical models are constructed for the relationships of the resource allocation quantity with the duration and cost of the sub-tasks.By considering the uncertainties,such as fluctuations in the sub-task duration and cost,rework iterations,and random overlaps,the tasks are simulated for various resource allocation schemes.The shortest duration and the minimum cost of the development task are first formulated as the objective function.Based on a multi-objective particle swarm optimization(MOPSO)algorithm,a multi-objective evolutionary algorithm is constructed to optimize the resource allocation scheme for the development task.Finally,an uninhabited aerial vehicle(UAV)is considered as an example of a development task to test the algorithm,and the optimization results of this method are compared with those based on non-dominated sorting genetic algorithm-II(NSGA-II),non-dominated sorting differential evolution(NSDE)and strength pareto evolutionary algorithm-II(SPEA-II).The proposed method is verified for its scientific approach and effectiveness.The case study shows that the optimization of the resource allocation can greatly aid in shortening the duration of the development task and reducing its cost effectively.展开更多
On the basis of analysing basic features of Shiliushubao landslide, the landslide＇s deformation and development tendency are quantitatively studied by using FLA^3D program. The results accord with monitoring results....On the basis of analysing basic features of Shiliushubao landslide, the landslide＇s deformation and development tendency are quantitatively studied by using FLA^3D program. The results accord with monitoring results. The results are indicated that resevoir impounding accelerates the landslide＇s deformation, and the variation of reservoir water level is key factor of affecting the deformation; The landslide has the characters of pull-behind move ment according to the displacement of the landslide body gradually reducing from leading edge to trailing edge; Excavating and deloading slow down the landslide＇s deformation in the certain degree. On the basis, the deformation developmental tendency of Shiliushubao landslide is predicted by the established simulating model.展开更多
Sustainable development of refinery is an important problem that refining industry faces in the21st Century. The situation and challenges in front of refining industry are analyzed and illustrated byexamples in this p...Sustainable development of refinery is an important problem that refining industry faces in the21st Century. The situation and challenges in front of refining industry are analyzed and illustrated byexamples in this paper. It is also recognized that large-scale, clean, light-oriented and integrated refinery isthe mode of development in future, and also an important measure for the sustainable development ofpetroleum resource.展开更多
China's shale gas production in 2020 exceeds 200×10^(8) m^(3),which creates a miracle in the history of natural gas development in China.The Sichuan Basin has already been and will be the main battlefield of ...China's shale gas production in 2020 exceeds 200×10^(8) m^(3),which creates a miracle in the history of natural gas development in China.The Sichuan Basin has already been and will be the main battlefield of shale gas exploration and development in China.In order to further promote the large-scale efficient development of shale gas in China,under the new situation of global COVID-19 spread and domestic“carbon peak and carbon neutrality”goal,this paper analyzes the progress and challenges of shale gas exploration and development in the Sichuan Basin from four aspects,including resource exploration,gas reservoir engineering,drilling and production engineering and industry regulation,and puts forward countermeasures and suggestions for achieving large-scale efficient development of shale gas.The following research results are obtained:First,the large-scale efficient development of shale gas in the Sichuan Basin has to take the sustainable and stable production of middle-shallow shale gas and the large-scale productivity construction of deep shale gas as the base.Second,compared with the shale gas exploration and development in the North America,the Sichuan Basin has its own characteristics in terms of geographical setting,geological condition,drilling and production technology and industry regulation,which makes it difficult to copy the development pattern of large scale,high density and continuous well deployment from the North America,so it is necessary to adopt the strategy of“high production with few wells”.On the one hand,continue to apply the geology and engineering integration technology to carry out“integrated research,integrated design,integrated implementation and integrated iteration”in the whole life cycle of shale gas well;and on the other hand,carry out problem-oriented continuous researches from the aspects of geological evaluation,development policy,engineering technology and industry regulation,so as to improve geological evaluation theory and technology,innovate gas reservoir engineering theory and method,research and develop engineering technology for cost reduction and efficiency improvement,improve shale gas industry regulation,and form a new pattern of collaborative promotion of technical and non-technical elements.In conclusion,the research results provide important reference and guidance for the large-scale efficient development of shale gas in the Sichuan Basin and even the whole country.展开更多
To keep up with the time,culture is integrated to large-scale construction project management in China,which will absolutely add more vitality into construction project management in our country.Engineering culture is...To keep up with the time,culture is integrated to large-scale construction project management in China,which will absolutely add more vitality into construction project management in our country.Engineering culture is an integration of project construction and engineering culture.However,engineering culture development enjoys its own particularity as a project is constructed once only within a limited period of time.This paper gives affirmative opinion that engineering culture development in large-scale projects backs project management on the basis of thorough investigation of engineering culture development in Sutong Bridge Project and after deepened analysis,proposes new thinking pattern of engineering culture development in large-scale projects in a systematic manner,including thorough understanding of the essence of engineering culture,principle and contents of engineering culture development as well as efficient method in respect of establishment and implementation of engineering culture,and therefore provides a standard reference and systematic thinking pattern for engineering culture development in future large-scale projects.展开更多
Known as sinology in today' s social and cultural development,the Chinese traditional literature has a certain effect on the age.Combined with the view on people' s social value development in traditional lite...Known as sinology in today' s social and cultural development,the Chinese traditional literature has a certain effect on the age.Combined with the view on people' s social value development in traditional literature and explore today' s development of social and cultural schools,the basic embodiment of traditional and social moral schools as the innovation and development of Chinese cultural schools can be summed up.From the traditional Confucian literary concept of development,it can be seen that the specific viewpoint of social development has promoted the innovation and development of Chinese humanistic and social cultural schools.Having the trend of diversification,Chinese traditional literature has a three-dimensional impact on the Chinese cultural schools and also provides a powerful impetus for the diversified development of Chinese cultural schools.展开更多
The cyber development of government service platform is just to integrate all the superiorities of the government to strengthen its roles such as service,performance and function to drive the social development active...The cyber development of government service platform is just to integrate all the superiorities of the government to strengthen its roles such as service,performance and function to drive the social development actively.Hence,the social public administration will take this opportunity to optimize the cyber information service platform to make the civic administration oriented to the social development to maximize its functions of organization,coordination and service to protrude the ascendancy of the web era so as to lay a solid foundation for the leap development of the public administration.展开更多
基金The 2023 Guangxi University Young and Middle-Aged Teachers’Scientific Research Basic Ability Improvement Project“Research on Seismic Performance of Prefabricated CFST Column-SRC Beam Composite Joints”(2023KY1204)The 2023 Guangxi Vocational Education Teaching Reform Research Project“Research and Practice on the Cultivation of Digital Talents in Prefabricated Buildings in the Context of Deepening the Integration of Industry and Education”(GXGZJG2023B052)The 2022 Guangxi Polytechnic of Construction School-Level Teaching Innovation Team Project“Prefabricated and Intelligent Teaching Innovation Team”(Gui Jian Yuan Ren[2022]No.15)。
文摘This paper discusses the digital application and benefit analysis of building information model(BIM)technology in the large-scale comprehensive development project of the Guangxi headquarters base.The project covers a total area of 92,100 square meters,with a total construction area of 379,700 square meters,including a variety of architectural forms.Through three-dimensional modeling and simulation analysis,BIM technology significantly enhances the design quality and efficiency,shortens the design cycle by about 20%,and promotes the collaboration and integration of project management,improving the management efficiency by about 25%.During the construction phase,the collision detection and four-dimensional visual management functions of BIM technology have improved construction efficiency by about 15%and saved the cost by about 10%.In addition,BIM technology has promoted green building and sustainable development,achieved the dual improvement of technical and economic indicators and social and economic benefits,set an example for enterprises in digital transformation,and opened up new market businesses.
文摘In this paper,based on the study of Chenopodium quinoa Willd.planting,it is concluded that the current situations of large-scale development of C.quinoa Willd.include the following four aspects:first,the research on C.quinoa Willd.varieties needs to be strengthened;second,it is insufficient to master the training environment and cultivation techniques;third,the large-scale planting of C.quinoa Willd.is not enough;fourth,the degree of mechanization of C.quinoa Willd.planting is not enough.In view of the above situation,this paper puts forward the following effective suggestions to strengthen the large-scale development of C.quinoa Willd.:the first is to increase the investment in C.quinoa Willd.variety research;the second is to strengthen the analysis of introduction and screening of C.quinoa Willd.varieties;the third is to study the best planting environment and cultivation techniques of C.quinoa Willd.;the fourth is to increase the scale of mechanized production of C.quinoa Willd.;the fifth is to increase the research and development of C.quinoa Willd.related products and their deep processing technology.
文摘The Lower Cambrian Longwangmiao Fm gas reservoir in Moxi block of the Anyue Gas field,Sichuan Basin,is the largest single-sandbody integrated carbonate gas reservoir proved so far in China.Notwithstanding this reservoir's advantages like large-scale reserves and high singlewell productivity,there are multiple complicated factors restricting its efficient development,such as a median content of hydrogen sulfide,low porosity and strong heterogeneity of fractureecave formation,various modes of gasewater occurrences,and close relation between overpressure and stress sensitivity.Up till now,since only a few Cambrian large-scale carbonate gas reservoirs have ever been developed in the world,there still exists some blind spots especially about its exploration and production rules.Besides,as for large-scale sulfur gas reservoirs,the exploration and construction is costly,and production test in the early evaluation stage is severely limited,all of which will bring about great challenges in productivity construction and high potential risks.In this regard,combining with Chinese strategic demand of strengthening clean energy supply security,the PetroChina Southwest Oil&Gas Field Company has carried out researches and field tests for the purpose of providing highproduction wells,optimizing development design,rapidly constructing high-quality productivity and upgrading HSE security in the Longwangmiao Fm gas reservoir in Moxi block.Through the innovations of technology and management mode within 3 years,this gas reservoir has been built into a modern large-scale gas field with high quality,high efficiency and high benefit,and its annual capacity is now up to over 100×10^(8)m^(3),with a desirable production capacity and development indexes gained as originally anticipated.It has become a new model of large-scale gas reservoirs with efficient development,providing a reference for other types of gas reservoirs in China.
基金supported by the National Natural Science Foundation of China(71690233)
文摘Resource allocation for an equipment development task is a complex process owing to the inherent characteristics,such as large amounts of input resources,numerous sub-tasks,complex network structures,and high degrees of uncertainty.This paper presents an investigation into the influence of resource allocation on the duration and cost of sub-tasks.Mathematical models are constructed for the relationships of the resource allocation quantity with the duration and cost of the sub-tasks.By considering the uncertainties,such as fluctuations in the sub-task duration and cost,rework iterations,and random overlaps,the tasks are simulated for various resource allocation schemes.The shortest duration and the minimum cost of the development task are first formulated as the objective function.Based on a multi-objective particle swarm optimization(MOPSO)algorithm,a multi-objective evolutionary algorithm is constructed to optimize the resource allocation scheme for the development task.Finally,an uninhabited aerial vehicle(UAV)is considered as an example of a development task to test the algorithm,and the optimization results of this method are compared with those based on non-dominated sorting genetic algorithm-II(NSGA-II),non-dominated sorting differential evolution(NSDE)and strength pareto evolutionary algorithm-II(SPEA-II).The proposed method is verified for its scientific approach and effectiveness.The case study shows that the optimization of the resource allocation can greatly aid in shortening the duration of the development task and reducing its cost effectively.
文摘On the basis of analysing basic features of Shiliushubao landslide, the landslide＇s deformation and development tendency are quantitatively studied by using FLA^3D program. The results accord with monitoring results. The results are indicated that resevoir impounding accelerates the landslide＇s deformation, and the variation of reservoir water level is key factor of affecting the deformation; The landslide has the characters of pull-behind move ment according to the displacement of the landslide body gradually reducing from leading edge to trailing edge; Excavating and deloading slow down the landslide＇s deformation in the certain degree. On the basis, the deformation developmental tendency of Shiliushubao landslide is predicted by the established simulating model.
文摘Sustainable development of refinery is an important problem that refining industry faces in the21st Century. The situation and challenges in front of refining industry are analyzed and illustrated byexamples in this paper. It is also recognized that large-scale, clean, light-oriented and integrated refinery isthe mode of development in future, and also an important measure for the sustainable development ofpetroleum resource.
基金Project supported by the National Natural Science Foundation of China"Shale Gas Reservoir Dynamic Simulation Research on Coupled Fracture Network E xpansion Mechanism"(No.51874251).
文摘China's shale gas production in 2020 exceeds 200×10^(8) m^(3),which creates a miracle in the history of natural gas development in China.The Sichuan Basin has already been and will be the main battlefield of shale gas exploration and development in China.In order to further promote the large-scale efficient development of shale gas in China,under the new situation of global COVID-19 spread and domestic“carbon peak and carbon neutrality”goal,this paper analyzes the progress and challenges of shale gas exploration and development in the Sichuan Basin from four aspects,including resource exploration,gas reservoir engineering,drilling and production engineering and industry regulation,and puts forward countermeasures and suggestions for achieving large-scale efficient development of shale gas.The following research results are obtained:First,the large-scale efficient development of shale gas in the Sichuan Basin has to take the sustainable and stable production of middle-shallow shale gas and the large-scale productivity construction of deep shale gas as the base.Second,compared with the shale gas exploration and development in the North America,the Sichuan Basin has its own characteristics in terms of geographical setting,geological condition,drilling and production technology and industry regulation,which makes it difficult to copy the development pattern of large scale,high density and continuous well deployment from the North America,so it is necessary to adopt the strategy of“high production with few wells”.On the one hand,continue to apply the geology and engineering integration technology to carry out“integrated research,integrated design,integrated implementation and integrated iteration”in the whole life cycle of shale gas well;and on the other hand,carry out problem-oriented continuous researches from the aspects of geological evaluation,development policy,engineering technology and industry regulation,so as to improve geological evaluation theory and technology,innovate gas reservoir engineering theory and method,research and develop engineering technology for cost reduction and efficiency improvement,improve shale gas industry regulation,and form a new pattern of collaborative promotion of technical and non-technical elements.In conclusion,the research results provide important reference and guidance for the large-scale efficient development of shale gas in the Sichuan Basin and even the whole country.
基金National Science and Technology Support Program(No.2006BAG04B06)
文摘To keep up with the time,culture is integrated to large-scale construction project management in China,which will absolutely add more vitality into construction project management in our country.Engineering culture is an integration of project construction and engineering culture.However,engineering culture development enjoys its own particularity as a project is constructed once only within a limited period of time.This paper gives affirmative opinion that engineering culture development in large-scale projects backs project management on the basis of thorough investigation of engineering culture development in Sutong Bridge Project and after deepened analysis,proposes new thinking pattern of engineering culture development in large-scale projects in a systematic manner,including thorough understanding of the essence of engineering culture,principle and contents of engineering culture development as well as efficient method in respect of establishment and implementation of engineering culture,and therefore provides a standard reference and systematic thinking pattern for engineering culture development in future large-scale projects.
文摘Known as sinology in today' s social and cultural development,the Chinese traditional literature has a certain effect on the age.Combined with the view on people' s social value development in traditional literature and explore today' s development of social and cultural schools,the basic embodiment of traditional and social moral schools as the innovation and development of Chinese cultural schools can be summed up.From the traditional Confucian literary concept of development,it can be seen that the specific viewpoint of social development has promoted the innovation and development of Chinese humanistic and social cultural schools.Having the trend of diversification,Chinese traditional literature has a three-dimensional impact on the Chinese cultural schools and also provides a powerful impetus for the diversified development of Chinese cultural schools.
文摘The cyber development of government service platform is just to integrate all the superiorities of the government to strengthen its roles such as service,performance and function to drive the social development actively.Hence,the social public administration will take this opportunity to optimize the cyber information service platform to make the civic administration oriented to the social development to maximize its functions of organization,coordination and service to protrude the ascendancy of the web era so as to lay a solid foundation for the leap development of the public administration.
