| The deep foundation pit supporting engineering since has been an integral part of the construction engineering,with high-rise buildings and underground engineering are constantly emerging,makes the deep foundation pit engineering problems becomes perplexing.In the joint efforts of the majority of practitioners,many new calculation methods the design gestated,there are many new methods to create and implement the advanced technology,many engineering examples appear like bamboo shoots after a spring rain.Now,the form of foundation pit is variety.Due to change rapidly,the reasonable selection of supporting form and it is especially important to a variety of support form the perfect combination of applied engineering examples.It is necessary not only for safety,but also need to the economy,more is the development trend.In this paper,the foundation pit supporting engineering of a project in Handan city as an example,the following points were studied:(1)The current situation and development trend of deep foundation pit support are discussed,and the characteristics and application scope of the common types of foundation pit support are summarized and summarized in detail.(2)With an engineering example as the research object,in the complex environment,according to the specific circumstances of each detail analysis completed primary and gives a preliminary supporting scheme,and the selection of representative parts are designed and checked by Lizheng software.(3)Combined with engineering examples,the preparation of safety management programs and construction programs,including foundation pit deformation monitoring program,composite soil nailing wall,pile anchor retaining structure construction program and well point dewatering program.(4)Compare the actual design scheme,construction scheme and engineering practice,find out the difference between the actual project site and put forward their own point of view and innovation. |