地铁盾构管片项目的质量管理

发布时间：2018-04-13 08:14

本文选题：项目管理 + 质量改进　；参考：《苏州科技大学》2017年硕士论文

【摘要】：盾构法是地铁、隧道等大型地下工程项目施工的一种先进方法,不仅安全高效、无噪声,而且对地面交通、地下管线建筑及沿线居民生活影响较小,目前已被广泛应用于地铁工程项目的施工。而管片作为地铁项目盾构法施工中的关键受力控件,肩负着地下隧道成型、安全防护、负载、止水、挡土等重要功能,是地下隧道的外层保护屏障。随着南京、苏州等大中型城市大力支持和发展地下轨道交通政策的出台,盾构法施工技术将迎来新的建设高潮。与此同时,在地铁盾构法施工过程中采用的预制砌块——盾构管片,也将得到空前蓬勃发展。但在地铁盾构管片生产过程中,经常会出现破损与开裂、管片错台、表面出现气泡等质量问题,从而导致部分地铁长期存在隧道漏水等隐患。盾构管片质量的好坏直接关乎隧道成型的整体质量、盾构法施工的进程以及地铁工程的使用年限。因此,研究地铁盾构管片质量改进问题对于工程质量管理具有重要实践意义。鉴于此,本文将结合作者工作单位所承担的地铁在建工程----苏州地铁X号线盾构管片项目为背景,研究盾构管片项目质量改进问题。具体地,本文从如下三个方面着手研究:(1)通过项目实践抽检和鱼骨图分析,识别盾构管片的主要质量问题;(2)应用PDCA循环质量管理工具来找出质量问题成因并探讨具体改进措施,从而控制盾构管片的质量问题;(3)对PDCA循环的质量控制效果进行评价和改进。研究结果表明,该项目主要面临三个质量问题:管片出现蜂窝麻面、管片止水槽粘皮、管片表面龟裂。通过多次PDCA质量动态改进之后,这些盾构管片质量问题都得到了很好的解决。本文中的盾构管片质量改进方法及效果,可为相关项目工程的质量管理提供理论借鉴与实践指导。另外,通过地铁盾构管片项目的质量改进,可提高盾构管片生产质量和公司竞争力,并且为地铁的安全运行提供重要保障。
[Abstract]:Shield tunneling is an advanced method for the construction of large underground projects such as subway and tunnel. It is not only safe, efficient and noiseless, but also has little impact on surface traffic, underground pipeline buildings and residents' lives along the line.At present, it has been widely used in the construction of subway projects.As the key force control in the shield construction of subway project, the segment bears the important functions of underground tunnel forming, safety protection, load, water stop, earth retaining and so on, which is the outer protective barrier of underground tunnel.With the introduction of the policy of supporting and developing underground rail transit in large and medium-sized cities such as Nanjing and Suzhou, the construction technology of shield method will usher in a new construction climax.At the same time, the precast block-shield segment used in the shield construction of subway will be developed vigorously.However, in the production process of shield segment of subway, there are often some quality problems, such as breakage and cracking, staggered segment and bubble on the surface, which lead to the long term hidden danger of tunnel leakage in some subways.The quality of shield segment is directly related to the overall quality of tunnel forming, the construction process of shield method and the service life of subway project.Therefore, it is of great practical significance to study the quality improvement of metro shield segment for engineering quality management.In view of this, this paper will study the improvement of the quality of shield segment project in Suzhou Metro Line X based on the project of subway construction in progress undertaken by the author's unit.Specifically, this paper begins to study the following three aspects: 1) identify the main quality problems of shield segments through project practice sampling and fish bone map analysis) apply PDCA cycle quality management tools to find out the causes of quality problems and discuss specific improvement measures.Therefore, the quality control effect of PDCA cycle is evaluated and improved by controlling the quality problem of shield segment.The results show that there are three main quality problems in this project: honeycomb hemp surface, flume sticking skin and crack surface.After several dynamic improvement of PDCA quality, these shield segment quality problems have been solved well.The method and effect of improving the quality of shield segment in this paper can provide theoretical reference and practical guidance for the quality management of related projects.In addition, the quality improvement of shield segment project can improve the production quality of shield segment and the competitiveness of the company, and provide an important guarantee for the safe operation of subway.
【学位授予单位】：苏州科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U455.43;U231.3

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