In this article,author introducs the rationality of selecting Larssen steel sheet pile support in constructing underpass,elaborates the method of design and construction.

• 本文介绍了地下通道施工中选择拉森钢板桩支护的合理性,并对其设计方法和施工措施进行详细阐述,为今后类似工程施工提供参考。