【作者】 沈尧兴；

【导师】 高波； 周振强；

【作者基本信息】 西南交通大学 ， 建筑与土木工程， 2003， 硕士

【摘要】 在富水软弱地层进行浅埋暗挖法隧道施工，首选降水技术。在城市繁华地段为环境所限，采用以洞内为主的超前预加固技术日益广泛。本文针对深圳地铁大剧院至科学馆区间工程的特殊边界条件，进行多种加固和控制地下水的施工方案进行比选，确定以水平旋喷桩超前预加固、小导管补充注浆为主，洞内引水、洞外局部动态降水为辅的综合施工技术，阐述不同地层水平旋喷桩的加固方案，通过室内模型试验、原位试验和有限元理论模拟动态分析，论证加固的力学效果。在浅埋大断面和连拱隧道区间，阐述通过试验和分析得出的主要结论和所选取的施工路线、不同施工方法和加固方案，对控制地面沉降，特别是重要管线—煤气管线的沉降，提出针对性措施，取得良好效果。最后文章还论述信息化施工广泛收集信息的重要性，把局限为监控量测的传统做法扩展至工程施工的全过程。更多还原

【Abstract】 The first choice for the tunnel engineering through the method of shallow-buried and blind digging on the condition of water-enriched and soft layer is the technology of reducing underground water level. At the area of prosperity section in the metropolis city, the technique of pre-reinforcement in advance featured with pumping water from the inner pipe due to the limitation of the construction environment has become more and more popular.The paper would choose the project engineering of Subway Theatre -Scientific Museum in Shenzhen city as the example to illustrate it. Facing the complex border condition, we firstly compare the adopted many working procedures of reinforced/strengthened and underground water level controlling, and then assume the comprehensive working procedure which takes using the horizontal-whirl cement power spray pile to reinforce/strengthen in advance and the small pipe to pour the mortar as the dominant way as well as regards using the ways of pump water from the inner pipe and dynamic reducing the water level outside the pipe partially as the assist way. In this way, we would like to illustrate the various strengthened engineering way upon the different layers and attempt to prove the method of mechanics reinforced effect through the ways of model test in the lab, testing on site and the limited factors theory simulation analysis. Between the section of shallow-buried and continuous arched tunnels, for the purpose of control the ground settlement effectively, especially the settlement of the important pipes-coal gas pipes, the paper will summit some counter measures by illustrating the key conclusions made from the testing and analysis as well as the chosen engineering route, the various working procedure and the distinct strengthened methods, as a result, the counter measure given by this paper has acquired the ideal achievement. In the final, the paper also discusses the importance of the information collection during the process of informationization engineering, still, the paper expands the traditional ways which limited on the inspection and surveying control to the whole engineering process.更多还原