Foundation pit construction support for railway engineering

The foundation pit construction support for the railway engineering comprises a bottom plate and a supporting plate, the lower side wall of the supporting plate is fixedly connected with the upper side wall of the bottom plate through a plurality of sets of supporting rods which are evenly distributed, and handrails which are evenly distributed are arranged on the edge of the upper side wall of the supporting plate. A fence with the corresponding height is arranged between every two adjacent handrails, a plurality of sets of main positioning pins which are evenly distributed are arranged on the bottom plate, a stabilizing cylinder is further fixedly arranged on the bottom plate and penetrates through the bottom plate, a positioning head is fixedly arranged on the upper side wall of each stabilizing cylinder, and a drill bit is fixedly arranged on the lower side wall of each stabilizing cylinder. And a ground gripping device is arranged in the stabilizing cylinder. The construction frame can effectively avoid