Foundation pit auxiliary supporting structure

The utility model provides a foundation pit auxiliary supporting structure, which belongs to the technical field of foundation pit supporting and comprises a supporting base body, a plurality of groups of vertical supporting components, a plurality of groups of transverse supporting components and a drainage component. The supporting base body is used for abutting against the two side walls of a foundation pit. The vertical supporting assemblies are arranged in the foundation pit in the length direction of the foundation pit at intervals. The transverse supporting assemblies and the vertical supporting assemblies are in one-to-one correspondence. The middle of the transverse supporting assembly is fixedly connected with the upper end of the corresponding vertical supporting assembly, and the two ends of the transverse supporting assembly are connected to the supporting base bodies on the corresponding sides respectively. The drainage assembly comprises a plurality of drainage channels arranged in the vertical