基于CE-BP模型的公路施工企业定额编制方法研究

发布时间：2018-10-25 15:00

【摘要】：公路工程企业定额是企业根据自身的施工技术水平和项目管理水平编制的单位产品消耗标准及其它费用的标准，，体现了企业的生产力水平，是公路施工企业进行投标报价和工程成本核算的重要依据。工程量清单计价模式下，企业定额已经成为制约清单计价市场化顺利运作的关键因素。现有公路工程企业定额原始数据大多是通过现场技术测定获得，技术测定法由于其成本高、测定周期长等局限性，难以在大多数施工企业中开展。本文分析了企业定额的重要地位和作用，以及当前企业定额的各种编制方法，提出从企业积累的工程基础数据中分析和筛选企业定额原始数据。从统计分析的角度，对公路工程企业定额的编制方法进行系统研究。在分析公路工程基础数据特点的基础上，研究公路施工项目各个时期和阶段基础数据的来源。并对数据进行分类，将公路工程基础数据分为空间数据、属性数据和专题数据三类。阐述工程基础数据在企业定额编制中的重要作用以及相似工程的概念，归结同类工程相似程度的影响因素，运用模糊聚类分析法建立相似工程的筛选模型，实现对众多复杂工程的聚类处理，从而使得到的原始数据更具可比性。进而运用交叉熵理论和BP神经网络方法对提取的定额原始数据进行研究，构建基于CE-BP的企业定额计算模型，计算出定额值。最后结合某公路施工企业工程实例，运用构建的模型进行实证分析并验证本文所设立模型依托理论的科学性和模型本身的可行性，为公路工程施工企业定额的编制提供理论依据和切实可靠的操作方法。
[Abstract]:Highway engineering enterprise quota is the standard of unit product consumption and other expenses compiled by enterprises according to their own construction technology level and project management level, which reflects the productivity level of enterprises. It is an important basis for highway construction enterprises to carry out bidding quotation and engineering cost accounting. Under the mode of bill of quantities valuation, enterprise quota has become the key factor restricting the smooth operation of list valuation market. Most of the original data of highway engineering enterprise quota are obtained by field technical measurement. Because of its high cost and long measuring period, it is difficult to carry out the method in most construction enterprises. This paper analyzes the important position and function of enterprise quota and various methods of compiling enterprise quota at present, and puts forward the analysis and screening of original enterprise quota data from the engineering basic data accumulated by enterprises. From the angle of statistical analysis, the establishment method of highway engineering enterprise quota is studied systematically. On the basis of analyzing the characteristics of basic data of highway engineering, the sources of basic data in each period and stage of highway construction project are studied. The basic data of highway engineering are classified into three categories: spatial data, attribute data and thematic data. This paper expounds the important role of engineering basic data in enterprise quota compilation and the concept of similar engineering, summarizes the influencing factors of similarity degree of similar engineering, and establishes the screening model of similar engineering by using fuzzy cluster analysis method. The clustering of many complex projects is realized, which makes the original data more comparable. Then, the original quota data is studied by using cross-entropy theory and BP neural network method, and the enterprise quota calculation model based on CE-BP is constructed, and the quota value is calculated. Finally, combining with the engineering example of a highway construction enterprise, using the constructed model to carry on the empirical analysis and to verify the scientific nature of the model based on the theory and the feasibility of the model itself. It provides theoretical basis and practical and reliable operation method for the establishment of quota for highway engineering construction enterprises.
【学位授予单位】：长沙理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：F542;U415.2;TU723.3

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