中文摘要：

本文结合贵阳市筑城广场旁某地块安置房工程,在地勘报告及当地工程经验的参考下,确定基坑红粘土土体的抗剪强度指标,利用有限元软件数值模拟实际基坑支护条件,分析探明支护结构位移和地表沉降与支护桩不同桩长、桩径、桩距之间的关系,优化设计方案,最后就设计方案与实测数据进行了对比研究。研究成果为西部红粘土地区同类工程的设计和施工提供了科学依据,对同类工程有借鉴意义。

英文摘要：

Combined with a block housing project next to the Guiyang City Fortification Plaza, in the reference of geological exploration report and the local engineering experience, the indexes of shearing strength of foundation pit are determined, the numerical simulation of the actual foundation pit supporting conditions are carried out using finite element software Midas GTS, the relationships of retaining pile, ground surface settlement and pile length, pile diameter, pile spacing are analyzed so as to optimize the design scheme, and finally design scheme is compared with the measured data. The results provide a scientific basis for design and construction of similar engineering of western red clay area, and provide reference for similar engineerings.