Drilling occlusion pile casing pipe for deep foundation pit construction

The invention relates to the technical field of building construction, and particularly relates to a drilling occlusion pile casing pipe for deep foundation pit construction. The drilling occlusion pile casing pipe comprises a casing pipe body, wherein the top end of the casing pipe body is sleeved with a protection opening; the outer side of the top of the casing pipe body is sleeved with a bearing ring; the bearing ring is of a circular ring structure and is fixedly connected to the casing pipe body through a screw; four horizontal steel channels are evenly welded to the outer side of the bearing ring; the outer side of the bottom of the bearing ring is fixedly sleeved with a hollow groove; and the four horizontal steel channels are perpendicular to the bearing ring. The drilling occlusion pile casing pipe has the beneficial effects that the outer side of the casing pipe is sleeved with the bearing ring, the four horizontal steel channels are evenly arranged on the outer side of thebearing ring, each horizo