Combining with the engineering example,this paper introduced the technical measures of cement mixing pile treatment of silt founda-tion,discussed the design method of larsen steel sheet pile foundation pit support,according to the characteristics of silt geology,summarized the construction key points of silt geology foundation pit engineering,provided experiences for similar engineering construction.%结合工程实例，介绍了水泥搅拌桩处理淤泥地基的技术措施，探讨了拉森钢板桩基坑支护的设计方法，根据淤泥地质的特点，总结了淤泥质基坑工程的施工要点，为类似工程的施工积累了经验。
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