Application And Quality Control Of Composite Ground Shield Construction Technology

With the rapid growth of China's economy, the state of infrastructure investment is increasing, In today's shrinking floor space, many construction way underground tunnel have taken the line of traffic engineering. As the construction of the shield can be widely used method of tunnel construction, due to its good land subsidence control, can effectively protect the safety of the tunnel structure built above the construction area of less controllable duration, etc., it has good social and economic benefits. In this context of this article, from zhuhai city to zhuhai Airport intercity railway tunnel project shield construction complex formation and quality management to carry out applied research.This paper first introduces the shield construction process method, the basic theory of quality management and quality management methods. Then integrated engineering environment, engineering geology, hydrogeology, the bead machine inter-city railway project finance island station ~ hengqin station shield construction difficult point to carry on the analysis, put forward the methods and measures to solve the difficult point construction. Secondly, through the theoretical arguments and combined with the engineering example bead machine inter-city railway project, this paper discusses the shield technology in bead machine construction of the inter-city railway tunnel composite formation. Again from the construction principle, construction technology, test and similar engineering experience, in-depth and detailed discusses the exploration of boulder, bedrock bump blasting construction, and other auxiliary method in the application of the composite formation pretreatment of shield tunneling. And through the composite formation rock bump, excavation blasting test and core pulling test and field test data and analysis results show in compound formation pretreatment, the feasibility of the auxiliary construction methods. Finally, the article discusses the composite formation of shield construction quality management method, and according to the similar project summary quality common fault of shield construction, put forward bead machine inter-city railway tunnel shield construction quality guarantee measures, in order to improve the quality management.Through the case study, this paper summarizes a set of in compound formation under the condition of shield construction technology and quality management methods, for the bead machine inter-city railway tunnel engineering quality, fast and efficient implementation has laid a solid foundation, provides the experience for reference for subsequent projects.