灰土挤密桩施工全面质量控制研究

发布时间：2018-04-13 17:30

本文选题：灰土挤密桩 + 施工　；参考：《兰州交通大学》2015年硕士论文

【摘要】：黄土高原地区沟壑纵横、地形破碎、地貌复杂,在黄土区域进行工程建设难度大,对地基承载力的要求尤其高,为了消除或降低湿陷性黄土地基在施工后因过大荷载导致不均匀沉降问题,就必须加强地基承载力处理,而灰土挤密桩这种复合地基具有易于施工,处理土层效果好,取材经济等优点故常用来处理湿陷性黄土。论文以灰土挤密桩施工工艺作为研究载体,分析了影响灰土挤密桩施工质量的主要因素并运用全面质量管理的基本原理对施工过程进行质量控制研究,取得较好控制效果,主要研究内容如下:(1)灰土挤密桩施工事前质量控制的主要措施:首先做好技术资料、文件准备的质量控制。依照施工项目自然条件及技术经济条件,制定切实可行的施工组织设计,做好充分的现场准备,熟悉相关法律法规,为即将到来的施工从技术和资料方面做好准备。同时重视设计交底和图纸审核工作,加强采购质量控制包括制定物资采购计划、要求验收标准等,其中分包商的选择也是采购的一部分。最后做好质量教育与培训,通过教育提高员工的技术水平,增强质量意识,满足所从事的质量工作对能力的要求。(2)灰土挤密桩施工事中质量控制的主要措施有:严格执行质量标准体系,做好组织机构、采购控制、测量控制、过程控制。强化管理,落实管理层、执行层及操作层的质量责任。做好工序控制,严格施工流程,确定质量目标,制定实施保证措施。同时施工过程中做好工序配合、工种配合、单位配合工作便于统一目标,保证质量。在施工过程中为了提高质量控制水平,项目部组建质量控制小组,通过对人员、材料、设备、工艺、环境等方面分析查找问题,采用质量管理的PDCA循环,对遇到的问题进行甄别处理,提高施工质量。(3)灰土挤密桩施工事后质量控制的主要措施有:做好最终质量检验和试验,技术资料的整理,及时对施工质量缺陷进行处理。论文以实训矿井实际工程项目灰土挤密桩施工的质量控制作为实证研究对象,采用论文所提出质量控制的主要措施,保证了该工程项目基础工程的顺利实施并通过了竣工验收,截至目前基础工程未出现任何质量问题。
[Abstract]:In the loess plateau area, the gully is vertical and horizontal, the terrain is broken, the geomorphology is complex, it is difficult to carry on the engineering construction in the loess area, the demand for the foundation bearing capacity is especially high.In order to eliminate or reduce the uneven settlement of collapsible loess foundation caused by excessive load after construction, it is necessary to strengthen the treatment of foundation bearing capacity, while the composite foundation of lime-soil compaction pile is easy to be constructed, and the treatment effect of soil layer is good.Therefore, it is often used to deal with collapsible loess.This paper takes the construction technology of lime-soil compaction pile as the research carrier, analyzes the main factors influencing the construction quality of lime-soil compaction pile, and studies the quality control of the construction process by using the basic principle of total quality management, and obtains better control effect.The main research contents are as follows: (1) the main measures of quality control in advance of lime-soil compaction pile construction: firstly, the quality control of technical data and document preparation.In accordance with the natural conditions and technical and economic conditions of the construction project, to formulate feasible construction organization design, to make adequate on-site preparation, familiar with relevant laws and regulations, and to prepare for the upcoming construction from the technical and material aspects.At the same time, we pay attention to the design and drawing audit, strengthen the quality control of procurement, including the preparation of material purchase plan, requirements for acceptance criteria, among which the selection of subcontractors is also a part of the procurement.Finally, we do a good job in quality education and training, improve the technical level of our staff through education, and enhance our awareness of quality.The main measures of quality control in the construction of lime-soil compaction pile are as follows: strictly implement the quality standard system, do well the organization, purchase control, measure control and process control.Strengthen management and implement quality responsibility of management, executive and operation level.Do a good job control, strict construction process, determine quality objectives, formulate implementation assurance measures.At the same time, in the process of construction process coordination, type of work coordination, unit coordination easy to unify the goal, to ensure quality.In order to improve the quality control level during the construction, the project department sets up the quality control team, through the personnel, the material, the equipment, the craft, the environment and so on aspect analysis finds the question, adopts the quality management PDCA cycle,The main measures to control the quality of lime-soil compaction pile after construction are as follows: finish the final quality inspection and test, arrange the technical data, and deal with the defects of construction quality in time.This paper takes the quality control of lime-soil compaction pile construction of practical mine engineering project as the empirical research object, and adopts the main measures of quality control proposed in the paper to ensure the smooth implementation of the foundation project of the project and the acceptance of the completion of the project.Up to now, there are no quality problems in foundation engineering.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU753.3

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