The Research Of Technology Of Foundation Engineering Support Designed,Construction,Monitoring

In recent years ,with the fast development of economy and city construct,especially big and middle cities of our country,Tall building and super tall building develop rapidly,at the same time, more and more underground engineering have shown.And that tall buildings have the deeper basement, some plane sizes have extended thousands of squara meters,deepness extended 40 meters.This text describs actuality and development of foundation pit support technology, at the same time describs detailed and emphasized design theory,construction and method of monitoring of the foundation pit support. also,accede to a mass of engineering example and analysis. text describs three ways ,design theory,construction and monitoring of foundation pit engineering and so on ,develops as follows main works:First chapter summarize, simple describs connotation of foundation pit,development and actuality of foundation pit support technology,as well as basic situation of design of foundation pit and construction.also,advance some improving in the process of design and construction .Second chapter,design theory and development of foundation pit,main describs several design theory of foundation pit : limit equilibrium theory,equivalent beam law,finite element method and so on.at the same time,advances type of foundation pit support and rationality ,also advances some advices aimed at foundation pit support type. Third chapter,technology of monitoring and construction of foundation pit engineering, this chapter emphasized describes process of the anchor-pile support,soil nailing wall,inner support system,cement-soil mixing pile in foundation pit. at the same time simple describs monitor content,appatatus and standard of foundation pit support. also advances information construction had emerged in recent years ,and content of information construction. as well as lists engineering example of a technical analysis of Guangzhou city Metro Line 3 Shiqiao station deep foundation pit in deformation control,particularly describs information construction technology applied construction process, offers convenience for the project.Fourth chapter ,design and construction technology of plate style support system, this chapter describs definition,compose and design calculational methods of plate style support system. also describs three example projects: design and construction of main enclosing structure of Guangzhou city metro line,foundation pit reinforce support engineering of Guangzhou Huarui building,foundation pit support engineering design and construction of Taishan sewage treatment plant advance pumping station.Fifth chapter,design and construction technology of mulriple soil nailing wall support system, this chapter describs conception of soil nailing wall,engineering design,construction and whole process of the monitoring.and that mulriple soil nailing wall support methods applied in foundation pit support of Guangzhou Kaicheng Dongxing building, besides analyzed monitoring process of that project.Sixth chapter,gravity retaining structures,this chapter describs design and construction process of the cement-soil wall, and lists example project:designs of Guangzhou some foundation pit support.Seventh,the last chapter,expectation of configuration selection,underground water,earthwork,circumstance problem,information construction in foundation pit. This text is summarized text, general describes design of foundation pit support,construction and whole process of monitoring ,from design theory to example project is described and analyzed. this text offer few experience and lessons for constructed person and technique person of foundation pit.