黄金坪水电站碾压式沥青混凝土心墙施工质量控制研究

发布时间：2018-06-27 07:00

本文选题：沥青混凝土 + 心墙　；参考：《国防科学技术大学》2014年硕士论文

【摘要】：经过近半个世纪的发展,沥青混凝土心墙防渗技术在我国已逐步得到完善并广泛应用。然而,因沥青混凝土配合比不合理、施工参数控制不准确和测量放样不到位等原因造成的质量事故仍时有发生。为此,加强研究沥青混凝土心墙的质量控制就显得尤为重要。本文以四川大渡河黄金坪水电站项目为研究对象,该工程碾压式沥青混凝土心墙共计381层,截至2014年11月1日,已完工98层。根据施工情况和大量试验,本文对碾压式沥青混凝土心墙的施工质量控制展开研究。具体内容包括以下三个方面:一是提出了碾压式沥青混凝土心墙施工质量控制顶层规划。针对碾压式沥青混凝土心墙施工的特殊性,以质量控制基本理论为依据,梳理了质量控制体系和组织结构,明确了施工质量控制流程和步骤。通过对“测量”因素的分析,给出了针对“5M1E”质量要素控制模型,从而使心墙质量控制技术得到进一步的完善。二是给出了本工程质量控制采用的具体方法。依据工程现场检验结果及统计数据,运用直方图法、控制图法进行了动态质量控制;综合运用了因果分析图法和AHP法,分析找出了影响心墙施工质量的各层级因素和关键要素,增强了解决该类问题的针对性。三是阐述了碾压式沥青混凝土心墙施工阶段质量控制策略。根据试验,给出了沥青混凝土配合比;结合工程施工情况和现有技术条件,详细论述了沥青混凝土生产、运输,以及铺筑和碾压过程中应着重注意的关键环节和事项,给出了施工过程中质量控制措施和方法,并对比分析了施工质量检验结果。通过研究,既为该工程施工质量控制提供依据,也为以后同类工程解决类似问题提供参考,对提高碾压式沥青混凝土心墙墙施工质量控制水平有着重要的理论和实践意义。
[Abstract]:After nearly half a century's development, asphalt concrete core wall impervious technology has been gradually improved and widely used in China. However, the quality accidents caused by the unreasonable mix ratio of asphalt concrete, inaccurate control of construction parameters and inadequate layout of measurement still occur from time to time. Therefore, it is very important to study the quality control of asphalt concrete core wall. In this paper, the project of Huangping Hydropower Station in Dadu River, Sichuan Province is taken as the research object. The roller compacted asphalt concrete core wall is 381 layers in total, and 98 stories have been completed as of Nov 1, 2014. According to the construction conditions and a large number of tests, the construction quality control of roller compacted asphalt concrete core wall is studied in this paper. The concrete contents include the following three aspects: first, the top planning of construction quality control of roller compacted asphalt concrete core wall is put forward. In view of the particularity of roller compacted asphalt concrete core wall construction, based on the basic theory of quality control, the quality control system and organization structure are combed out, and the construction quality control flow and steps are clarified. Through the analysis of the factors of "measurement", the control model of "5M1E" quality elements is given, which makes the core wall quality control technology more perfect. Secondly, the concrete method of quality control in this project is given. According to the results of site inspection and statistical data, the dynamic quality control is carried out by histogram method and control chart method, and the factors and key factors affecting the construction quality of core wall are analyzed and found by using causality analysis method and AHP method. The pertinence of solving this kind of problem is strengthened. Thirdly, the quality control strategy of roller-compacted asphalt concrete core wall in construction stage is expounded. According to the test, the mix ratio of asphalt concrete is given, and the key links and matters that should be paid attention to in the process of asphalt concrete production, transportation, paving and rolling are discussed in detail in combination with the construction situation of the project and the existing technical conditions. The quality control measures and methods in construction process are given, and the results of construction quality inspection are compared and analyzed. Through the research, it not only provides the basis for the construction quality control of the project, but also provides the reference for similar projects to solve similar problems in the future. It is of great theoretical and practical significance to improve the construction quality control level of the roller compacted asphalt concrete core wall.
【学位授予单位】：国防科学技术大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TV544

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