Through the exploration,analysis on a proiect site soil conditions,this paper decided to adopt the construction methods of local self-priming pump precipitation,I-beam and plywood support,elaborated the process principle,characteristics and application scope of this construc-tion method,and analyzed in detail the technology process,operation key points and safety,environmental protection measures,at the same time illustrated the economic and social benefits use of the construction methods.%通过对某工程场地土质的勘察、分析，决定采用局部自吸泵降水，工字钢加胶合板支护的施工方法，对该施工方法的工艺原理、特点及适用范围进行了阐述，并详细分析了该工法的工艺流程、操作要点及安全、环保措施，同时说明了运用该施工方法起到的经济效益和社会效益。
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