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A Review of Deepwater Pipeline Construction in the U.S. Gulf of Mexico-Contracts, Cost, and Installation Methods 被引量:3
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作者 Mark J. Kaiser 《Journal of Marine Science and Application》 CSCD 2016年第3期288-306,共19页
The offshore pipeline network in the U.S. Gulf of Mexico is the largest and most transparent system in the world. A review of deepwater projects in the region provides insight into construction cost and installation m... The offshore pipeline network in the U.S. Gulf of Mexico is the largest and most transparent system in the world. A review of deepwater projects in the region provides insight into construction cost and installation methods and the evolution of contract strategies. Pipeline projects are identified as export systems, infield flowline systems, and combined export and infield systems, and three dozen deepwater pipeline installations from 1980–2014 are described based on Offshore Technology Conference(OTC) and Society of Petroleum Engineers(SPE) industry publications and press release data. Export lines and infield flowlines are equally represented and many projects used a combination of J-lay, S-lay and reel methods with rigid steel, flexible line, and pipe-in-pipe systems. The average 2014 inflation-adjusted cost for pipeline projects based on OTC/SPE publications was $2.76 million/mi and ranged from $520 000/mi to $12.94 million/mi. High cost pipelines tend to be short segments or specialized pipeline. Excluding the two cost endpoints, the majority of projects ranged from $1 to $6 million/mi. The average inflation-adjusted cost to install deepwater pipelines in the U.S. Gulf of Mexico based on available public data is estimated at $3.1 million/mi. 展开更多
关键词 construction cost contract type empirical statistics installation methods deepwater pipeline review
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Probabilistic prediction of expected ground condition and construction time and costs in road tunnels 被引量:5
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作者 A.Mahmoodzadeh S.Zare 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2016年第5期734-745,共12页
Ground condition and construction (excavation and support) time and costs are the key factors in decision-making during planning and design phases of a tunnel project. An innovative methodology for probabilistic est... Ground condition and construction (excavation and support) time and costs are the key factors in decision-making during planning and design phases of a tunnel project. An innovative methodology for probabilistic estimation of ground condition and construction time and costs is proposed, which is an integration of the ground prediction approach based on Markov process, and the time and cost variance analysis based on Monte-Carlo (MC) simulation. The former provides the probabilistic description of ground classification along tunnel alignment according to the geological information revealed from geological profile and boreholes. The latter provides the probabilistic description of the expected construction time and costs for each operation according to the survey feedbacks from experts. Then an engineering application to Hamro tunnel is presented to demonstrate how the ground condition and the construction time and costs are estimated in a probabilistic way. In most items, in order to estimate the data needed for this methodology, a number of questionnaires are distributed among the tunneling experts and finally the mean values of the respondents are applied. These facilitate both the owners and the contractors to be aware of the risk that they should carry before construction, and are useful for both tendering and bidding. 展开更多
关键词 Markov process Geological condition Monte-Carlo (MC) simulation construction time and costs Hamro tunnel
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Comparison of School Building Construction Costs Estimation Methods Using Regression Analysis, Neural Network, and Support Vector Machine 被引量:2
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作者 Gwang-Hee Kim Jae-Min Shin +1 位作者 Sangyong Kim Yoonseok Shin 《Journal of Building Construction and Planning Research》 2013年第1期1-7,共7页
Accurate cost estimation at the early stage of a construction project is key factor in a project’s success. But it is difficult to quickly and accurately estimate construction costs at the planning stage, when drawin... Accurate cost estimation at the early stage of a construction project is key factor in a project’s success. But it is difficult to quickly and accurately estimate construction costs at the planning stage, when drawings, documentation and the like are still incomplete. As such, various techniques have been applied to accurately estimate construction costs at an early stage, when project information is limited. While the various techniques have their pros and cons, there has been little effort made to determine the best technique in terms of cost estimating performance. The objective of this research is to compare the accuracy of three estimating techniques (regression analysis (RA), neural network (NN), and support vector machine techniques (SVM)) by performing estimations of construction costs. By comparing the accuracy of these techniques using historical cost data, it was found that NN model showed more accurate estimation results than the RA and SVM models. Consequently, it is determined that NN model is most suitable for estimating the cost of school building projects. 展开更多
关键词 ESTIMATING construction costS Regression Analysis NEURAL Network Support VECTOR MACHINE
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Leaf Construction Cost and Related Ecophysiological Parameters of Rice Crop and Its Important Weeds
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作者 Vartika SINGH Hema SINGH 《Rice science》 SCIE 2012年第3期233-240,共8页
To understand the reason for the success of weeds,we investigated the energetic cost of leaf construction,and certain ecophysiological traits of rice and its dominant weeds.On physiological basis among all weeds,Caesu... To understand the reason for the success of weeds,we investigated the energetic cost of leaf construction,and certain ecophysiological traits of rice and its dominant weeds.On physiological basis among all weeds,Caesulia axillaris Roxburgh was found to be the most serious,followed by Echinochloa cruss-galli L.Beauv and Echinochloa colonum L.Link,while Fimbristylis miliaceae L.Vahl and Cyperus iria L.were moderate weeds of the rice fields.C.axillaris had the lowest leaf construction cost (LCC) both on a mass basis (1.15 g/g) and on a unit area basis (22.93 g/m2).Comparatively higher specific leaf area,photosynthetic rate,photosynthetic nitrogen use efficiency,leaf area ratio and leaf area index provided C.axillaris with further competitive advantage.Low LCC suggests that weeds utilize carbon resource more efficiently than the crop and potentially spend the saved energy on other competitive strategies viz.seed production,biomass production and high relative growth rate,which results in low crop yield and increase in weed seed bank. 展开更多
关键词 Caesulia axillaris Echinochloa cruss-galli leaf construction cost photosynthetic rate RICE
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Control and Management of Construction Project Cost 被引量:1
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作者 ZHU Lili 《Journal of Landscape Research》 2016年第4期7-8,共2页
Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of proje... Project cost can control the input in construction project and improve economic benefits of construction enterprises,so it is an important section of construction engineering.Reasonable control and management of project cost is the principle that building units must obey in the whole process of project,particularly in the construction stage,so it is extremely important to control and manage the project cost.This paper first analyzed possible causes for the unreasonable cost of construction projects,and put forward pertinent strategies for the control and management of construction project cost. 展开更多
关键词 construction project construction stage Project cost Control and management
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Long Run Relationships, Vertical Integration and International Competition: Can They Contribute to Explaining Regional Construction Cost Differences?
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作者 Abukar Warsame 《Journal of Civil Engineering and Architecture》 2014年第3期378-387,共10页
The existence of opportunistic behavior by contractors or sub-contractors in the bidding process encouraged by the governance structure of construction companies as well as the kind of relationship that exist between ... The existence of opportunistic behavior by contractors or sub-contractors in the bidding process encouraged by the governance structure of construction companies as well as the kind of relationship that exist between contractors and clients is thought to have some bearing on the rising construction cost observed in some regions of Sweden. Three hypotheses that are intended to test the impact that long run relationship between contractors and developers, vertically integrated firms, and the increase of international competition could have on the construction cost increase levels were tested on a predetermined number of projects from six cities in different regions. The semi-structured survey produces inconclusive results. Long run and collaborative relationship was prevalent in small region though respondents in this region did not draw strong connection between construction cost increase levels and the kind of observed relationship. In Stockholm region, short-term relationship was mostly prevalent. Vertical integration and foreign competition impacts on construction costs were not significant in either region. 展开更多
关键词 construction costs COMPETITION long-term relationship vertical integration.
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Research on Computer Technology in Construction Cost Management
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作者 Liu Yingjie 《International Journal of Technology Management》 2015年第11期74-76,共3页
Computer technology has been comprehensively popularized in all walks of life with its continuous development. The construction cost management industry is surely no exception. To improve the application of computer t... Computer technology has been comprehensively popularized in all walks of life with its continuous development. The construction cost management industry is surely no exception. To improve the application of computer technology in construction cost management industry, this thesis would respectively discuss and analyze the importance of computer technology application in construction cost management, status quo of computer technology application in construction cost management, measures of improving computer technology application in construction cost management as well as the development prospect of computer technology application in construction cost management. The author is striving to arouse the attention and exploration of relevant departments as well as practitioners in the same industry. 展开更多
关键词 Computer Technology construction cost Management Measures
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Comments on the development trend of the construction cost management in the new period
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作者 Danjing Wang 《International Journal of Technology Management》 2013年第6期102-104,共3页
Building construction projects generally needs a long period, and there are many fixed factors in the process of building, therefore, the management of the project cost is a little difficult. On the basis that the qua... Building construction projects generally needs a long period, and there are many fixed factors in the process of building, therefore, the management of the project cost is a little difficult. On the basis that the quality of construction is not affected, the effective management of the project cost can effectively control the costs so that the economic and social benefits of the construction unit will be raised, and then continue to promote the development of construction industry in China. 展开更多
关键词 COMMENTS construction cost management market mechanisms.
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Representing the Knowledge of Public Construction Project Cost Estimator by Using Rule-Based Method
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作者 Abelrahman Osman Elfaki Saleh Alatawi 《Journal of Building Construction and Planning Research》 2015年第4期189-195,共7页
Despite the presence of various construction project cost estimate softwares, human experience and knowledge cannot be disregarded. This fact has been proven in practice, where the success of construction cost estimat... Despite the presence of various construction project cost estimate softwares, human experience and knowledge cannot be disregarded. This fact has been proven in practice, where the success of construction cost estimate process is mainly based on knowledge of human estimator. The main question concerns what human knowledge determines the success of the construction cost estimation process. To address this question we have applied Delphi technique and the output is eleven factors that are enough to precisely represent construction cost estimator knowledge. Then we have used First Order Logic (FOL) to represent these factors in terms of predicates and rules. These FOL rules could be used for evaluating construction cost estimator knowledge in five classes: fail, pass, acceptable, good, and very good. As a validation process we have done experiments using history data and the results have proved the accuracy of our proposed method. 展开更多
关键词 constructION MANAGEMENT constructION cost Estimation RULE-BASED System
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Construction Management and Cost Control of Landscaping Projects
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作者 FENG Yuneng 《Journal of Landscape Research》 2012年第11期11-12,16,共3页
Uniqueness of landscaping projects was analyzed,and cost was regarded as an important index evaluating performance of landscaping construction enterprises. Based on reviewing limitation of cost control on landscaping ... Uniqueness of landscaping projects was analyzed,and cost was regarded as an important index evaluating performance of landscaping construction enterprises. Based on reviewing limitation of cost control on landscaping construction enterprises,enhancing construction management,controlling cost reasonably,and reducing project cost were proposed as the foundation and core content of enterprise cost management,and also the key to successful project management.By combining with design practices,suggestions for enhancing construction management of landscaping project,controlling cost and improving profits were given. 展开更多
关键词 LANDSCAPING constructION MANAGEMENT cost CONTROL
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Construction economic cost management under the market economy
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作者 QI Ya-li 《Ecological Economy》 2019年第2期156-160,共5页
Currently, how to further improve and perfect construction economic cost management,minimizing construction economic management cost and construction investment of the enterprise have become the important content for ... Currently, how to further improve and perfect construction economic cost management,minimizing construction economic management cost and construction investment of the enterprise have become the important content for the daily management of construction enterprise managers. This article focuses on the construction economy under the conditions of market economy cost management, analyses related concepts and existing questions, and proposes targeted recommendations of the problem. 展开更多
关键词 MARKET ECONOMY constructION cost cost MANAGEMENT
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Method for Estimating of Construction Cost of a Building Based on Previous Experiences
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作者 Cláudio Ricardo Bettini Orlando Celso Longo +1 位作者 Luciane Ferreira Alcoforado Alana Caroline Gamba Maia 《Open Journal of Civil Engineering》 2016年第5期749-763,共15页
In a real estate project, the estimated cost of construction and the revenues generally represent together the most important values of its feasibility study. When a decision of undertaking a project is made, often th... In a real estate project, the estimated cost of construction and the revenues generally represent together the most important values of its feasibility study. When a decision of undertaking a project is made, often there are few definitions of what is about to be constructed, and frequently not enough to ensure the accuracy of the estimated costs. Considering a global tendency on reducing margins of return over the real estate markets, slight variations of the construction cost can jeopardize the success of the whole real estate enterprise and even the financial stability of the builder or of the developer. This article aims at presenting a method of estimating the building construction costs applicable at the stage of feasibility studies, being able to provide acceptable errors. 展开更多
关键词 Real Estate Development construction cost Estimation cost Forecast cost Estimation Error
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Discussion on Factors and Control Strategies of Construction Cost Exceeding Budget
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作者 LIUShuya 《外文科技期刊数据库(文摘版)工程技术》 2022年第4期112-116,共5页
In the early construction process in China's construction engineering field, the importance of project cost budget management was not high, which also became the main reason for the over-budget cost problem, not o... In the early construction process in China's construction engineering field, the importance of project cost budget management was not high, which also became the main reason for the over-budget cost problem, not only detrimental to the guarantee of economic interests of construction enterprises, but also affecting the quality level of construction projects. Therefore, it is necessary to study the causes of the over-budget problem of construction project cost, and to implement reasonable control of cost budget on this basis, so as to avoid the over-budget problem. The implementation of the construction management of construction projects mainly includes the contents of construction, construction personnel and construction costs, etc. in order to effectively control the quality of construction projects, which includes the work of estimating the project cost, which not only affects the smooth progress of construction projects, but also affects the future development of construction enterprises. The budget of construction project cost mainly aims at estimating the prices of materials, manpower and equipment, so as to obtain the overall cost of the project and effectively control the cost of the project. However, the over-budget cost problem in the actual operation process has a great impact on the economic benefits of the enterprise, which also reveals the deficiencies in the project management carried out by the enterprise, especially in the cost management. 展开更多
关键词 construction cost over budget FACTORS control strategies
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Brief Analysis of Dynamic Management and Control of Construction Cost
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作者 JIANGKun 《外文科技期刊数据库(文摘版)工程技术》 2022年第1期053-057,共5页
In the process of modern management company, we should choose an appropriate angle for modern improvement according to the actual situation, realize the multifaceted management of construction project cost, and promot... In the process of modern management company, we should choose an appropriate angle for modern improvement according to the actual situation, realize the multifaceted management of construction project cost, and promote the effective progress of relevant work. We should do a good job in all-round construction management, promote the improvement of relevant management level, actively promote the effective improvement of overall management on construction project cost, realize all-round observation, adopt appropriate methods to realize dynamic management and effective control, and adopt reasonable methods according to the actual situation of construction enterprises. According to the current construction cost management status, this paper selects the appropriate response mode, not only to carry out the dynamic management and control of the whole process, but also to do a good job in the analysis of effective management measures. The main purpose is to promote the improvement of relevant management level, but also to provide reference basis for construction management in the future. 展开更多
关键词 construction engineering the construction cost dynamic management CONTROL
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Thinking and Analysis on the Management of Construction Project Cost under the New Situation
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作者 DING Hongmei 《外文科技期刊数据库(文摘版)工程技术》 2021年第8期1275-1277,共5页
After entering the new century, China's economy has developed rapidly and the number of construction projects has increased, which has led to some changes in the cost of construction projects. At the same time, co... After entering the new century, China's economy has developed rapidly and the number of construction projects has increased, which has led to some changes in the cost of construction projects. At the same time, compared with the traditional construction cost model, the construction cost under the new situation is more and more extensive, including economic knowledge, contract intellectual property rights, safe construction and other knowledge. Therefore, in the process of cost management, it has certain complexity. In addition, the technological means are improving and the influencing factors are increasing, which may lead to higher and higher construction costs. Therefore, in the new trend, it is necessary to properly supervise the construction cost to ensure the scientific rationality of the construction cost. 展开更多
关键词 construction cost existing problems measures
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The Influencing Factors of Construction Cost and Countermeasures to Reduce Construction Cost
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作者 DINGXiaoxin 《外文科技期刊数据库(文摘版)工程技术》 2022年第3期201-204,共4页
Project cost management is the basic guarantee to support the normal operation of construction projects. Therefore, it needs to be integrated into all construction links. Only by formulating a clear project cost manag... Project cost management is the basic guarantee to support the normal operation of construction projects. Therefore, it needs to be integrated into all construction links. Only by formulating a clear project cost management target in advance and further refining the content of the management system, can the project quality be ensured to its due height. Based on this, this article mainly lists several factors that can bring negative impact on the construction project cost, and on this basis, gives effective improvement suggestions, in order to help construction enterprises to realize the deficiencies existing in the existing management model and make adjustments as soon as possible. 展开更多
关键词 construction engineering cost management construction costs
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Analysis on Dynamic Management and Control of Construction Cost
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作者 ZHANG Quan 《外文科技期刊数据库(文摘版)工程技术》 2021年第2期262-266,共5页
For most construction companies, the construction cost is closely related to the economic interests of the construction companies. In the process of project construction, enterprises need to strictly control the proje... For most construction companies, the construction cost is closely related to the economic interests of the construction companies. In the process of project construction, enterprises need to strictly control the project cost in order to save costs and increase the economic benefits of the company's business. However, in the actual construction project implementation process, there are many factors that affect the project cost. If these factors cannot be dynamically controlled, the phenomenon of cost over budget will easily occur, which will affect the smooth progress of the project. Serious cost over budget may even cause the project to run aground halfway. Therefore, it is necessary to dynamically control the cost of modern construction projects. 展开更多
关键词 construction engineering construction cost dynamic control
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Discussion on Reasonable and Effective Control and Exploration of Construction Engineering Cost
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作者 MOUZhongrui 《外文科技期刊数据库(文摘版)工程技术》 2022年第4期117-120,共4页
In the process of construction management of construction projects, the key core content is to fundamentally do a good job in the control and management of project cost. Especially under the background of deepening th... In the process of construction management of construction projects, the key core content is to fundamentally do a good job in the control and management of project cost. Especially under the background of deepening the reform of the current market economy system, to ensure that the cost of construction projects can be controlled scientifically and reasonably, so that the construction cost can be fully reduced, which plays a key role in the construction of the overall project and the sound development of the enterprise. Therefore, we should attach great importance to the control and management of construction project cost, implement more practical control measures, analyze the problems or deficiencies in each stage and deal with them in a timely manner, so as to provide necessary support for the sustainable development of enterprises. Combined with such situations, this paper explores the construction cost management and construction cost control strategies and other related content, hoping that the analysis in this paper can provide some inspiration for the construction cost control work to achieve better progress. 展开更多
关键词 construction cost effective control control measures
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Discussion on the Reasons and Control Measures of Construction Cost beyond Budgeting
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作者 SUN Xingliang 《外文科技期刊数据库(文摘版)工程技术》 2021年第2期092-096,共5页
In order to do a good job in the control method of the construction project cost budget, first of all, we need to understand and analyze the reasons of the construction project cost budget in detail. Starting from sev... In order to do a good job in the control method of the construction project cost budget, first of all, we need to understand and analyze the reasons of the construction project cost budget in detail. Starting from several aspects, the construction drawings are calculated. At the same time, improve the quality of the construction staff and implement strict management scheme in the site construction stage. In particular, make changes to the design scheme. Make a design scheme according to the actual situation of the construction project cost budget, so as to achieve the enterprise benefit from the reservation target. 展开更多
关键词 construction engineering construction cost control measures
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Dynamic Management and Control of Construction Cost
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作者 YIN Yidong 《外文科技期刊数据库(文摘版)工程技术》 2021年第9期177-180,共6页
With the rapid development of China's construction industry, high-quality construction enterprises are looking for new ways and new ideas to improve the level of quality management. The effective implementation of... With the rapid development of China's construction industry, high-quality construction enterprises are looking for new ways and new ideas to improve the level of quality management. The effective implementation of project cost management requires construction enterprises to establish a dynamic management and control mode, so as to improve the cost control level of various construction projects in line with the actual situation and ensure the realization of the cost control objectives and expected benefits of construction projects. 展开更多
关键词 construction engineering construction cost dynamic management control
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