Temporary foundation pit supporting structure

The temporary foundation pit supporting structure comprises a supporting piece located on one side of a foundation pit, the supporting piece comprises a supporting assembly and a supporting assembly, the supporting assembly is arranged in a silty clay layer and used for supporting the foundation pit, and the supporting assembly is arranged in the silty clay layer and a bedrock layer and used for supporting the supporting assembly; the method has the advantage that the supporting effect on the deep foundation pit beside the existing railway is improved. 本申请涉及一种临时基坑支护结构，包括位于基坑一侧的支护件，所述支护件包括支护组件和支撑组件，所述支护组件设置在粉质黏土层内且用于对基坑进行支护，所述支撑组件设置在粉质黏土层和基岩层内且用于对支护组件进行支撑；本申请具有提高对既有铁路旁深度较深的基坑的支护效果的优点。