基于多知识源网络进度计划辅助生成技术与方法研究

发布时间：2018-05-07 03:21

本文选题：水利水电工程 + 网络进度计划　；参考：《天津大学》2014年硕士论文

【摘要】：大型水利水电工程往往具有规模大、受环境因素制约多且复杂的特点，制定切实可行的施工进度计划对于保证工程质量，加快工程建设进度，提高施工安全性具有重要的现实意义。然而，目前工程进度网络计划编制还多依靠人工，虽然有P3（目前为P3e/c）、MS Project软件辅助，其编制效率和质量还是受到一定的制约。自网络计划技术产生以来，网络进度计划辅助生成问题一直是工程界和学术界研究的重点问题之一。从20世纪70年代至今，国内外先后有学者提出了通过专家系统、工程案例推理、模板推理以及与CAD（计算机辅助设计）、IFC（工业基础类）、BIM（建筑信息模型）结合的若干网络进度计划自动生成理论和方法，但这些方法大多没有涉及复杂的水利水电工程，并且这些研究多是利用单一知识源来生成网络计划。本文针对目前网络进度计划辅助生成中存在的问题，引入本体论的概念，研究将专家经验、工程案例、模板、三维模型等多知识源中的知识进行有机地融合，提出了一套基于多知识源网络进度计划辅助生成方法。论文中开展了如下几个方面的工作：（1）针对大型水利水电进度计划辅助生成过程中的各种知识源的特征进行研究，分析易于多源知识融合的结构化知识组织形式和组织机制。（2）针对三维模型中所隐含的大量的建筑构件的空间信息和工程量等进度计划编制所需要的信息进行知识挖掘途径和方法研究。（3）通过对大型水利水电工程施工过程的系统研究和分析，针对施工工序之间逻辑关系的确立，研究适用于水利工程的推理规则知识表达体系。（4）通过借助本体论有关概念和研究，采用面向对象的理念，研究基于本体论的多源知识融合辅助生成工程网络进度计划的基本机制。
[Abstract]:Large-scale water conservancy and hydropower projects often have the characteristics of large scale, many and complex constraints by environmental factors. To ensure the quality of the project and speed up the construction progress, it is necessary to draw up feasible construction schedule. It is of great practical significance to improve the safety of construction. However, at present, the network planning of engineering progress still depends on manual work, although it is assisted by P3e / C / C / MS Project software, its efficiency and quality are restricted to a certain extent. Since the emergence of network planning technology, the problem of auxiliary generation of network schedule planning has been one of the key issues in engineering and academic circles. From the 1970s to the present, some scholars at home and abroad have put forward the theory of engineering case reasoning through expert system. Formwork reasoning and several network schedule automatic generation theories and methods combined with CAD (computer aided Design) (CAD) / IFC (Building Information Model), but most of these methods do not involve complex water and hydropower projects. And most of these studies use a single knowledge source to generate network plans. In this paper, aiming at the problems existing in the network schedule auxiliary generation, this paper introduces the concept of ontology, and studies the organic fusion of knowledge from expert experience, engineering cases, templates, 3D models, and so on. In this paper, a method of scheduling aided generation based on multi-knowledge source network is proposed. In this paper, the following aspects of work are carried out: The main contents are as follows: 1) the characteristics of various knowledge sources in the auxiliary generation process of large-scale water conservancy and hydropower schedule planning are studied and the structured knowledge organization forms and organization mechanisms which are easy to integrate multi-source knowledge are analyzed. 2) knowledge mining approaches and methods are studied for the spatial information of a large number of building components and the information needed for the preparation of progress plans such as engineering quantities, which are implicit in the three-dimensional model. 3) through the systematic research and analysis of the construction process of large-scale water conservancy and hydropower projects, and in view of the establishment of logical relations between construction processes, the knowledge expression system of inference rules suitable for hydraulic engineering is studied. 4) the basic mechanism of multi-source knowledge fusion based on ontology to assist the generation of engineering network schedule is studied by means of ontology related concepts and research, and the object-oriented concept is adopted.
【学位授予单位】：天津大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV511

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