PIPE JACKING MACHINE FOR PREVENTING EXISTING PAVEMENTS AND BUILDINGS FROM COLLAPSING

The present utility model aims to provide a pipe jacking machine for preventing existing pavements and buildings from collapsing. The pipe jacking machine for preventing existing pavements and buildings from collapsing comprises a pipe jacking machine body, a jack and a jacking rod, wherein the pipe jacking machine body is in the shape of a circular pipe and is horizontally arranged; the left end of the pipe jacking machine body is connected to the jack by means of the jacking rod; a vertical cutterhead is mounted at the right end of the pipe jacking machine body; by means of the jacking rod, the jack drives the pipe jacking machine body together with the cutterhead to move to the right; the cutterhead rotates around a pipe axis of the pipe jacking machine body to excavate a pipe jacking channel; the right end of the pipe jacking machine body extends to the right to form soil blocking covers; and gaps are reserved between the soil blocking covers and the cutterhead. As a soil layer directly above the cutterhe