Drifting sand soil foundation pit excavation supporting structure

The utility model relates to the technical field of foundation pit supporting, in particular to a quicksand soil foundation pit excavation supporting structure which comprises a foundation pit body, a supporting mechanism is arranged inside the foundation pit body, a fixing assembly is arranged outside the foundation pit body, and the supporting mechanism comprises four protection plates which are tightly attached to the foundation pit body. A fixing rod is fixedly installed in the protection plate, the fixing rod is sleeved with a sliding seat, the opposite sides of the two sliding seats are fixedly connected with a base plate, and the base plate comprises a first fixing plate. According to the quicksand soil foundation pit excavation supporting structure, through the arrangement of the supporting mechanism, quicksand entering the foundation pit is reduced, a user can conveniently install the supporting structure, the stability of the foundation pit is improved, and the problems that the strength of row pile