In this paper,the foundation pit engineering of composite soil nailing with anchor support in Beiiing is used as an example. The nu-merical simulation is carried out by using FLAC3D to guide the design and construction of composite soil nailing. It can provide reference when numerical simulation is applied in practical engineering in the future.%以北京某土钉与锚杆复合支护的基坑工程为例，采用FLAC3D软件进行数值模拟，并以模拟结果来指导复合土钉支护的设计与施工，为以后数值模拟在实际工程中的应用提供借鉴作用。
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