Large-diameter reinforced concrete jacking pipe and connecting method

Abstract

The invention relates to a large-diameter reinforced concrete jacking pipe which comprises a first pipe joint and a second pipe joint which are coaxially connected. The first pipe joint and the secondpipe joint are clamped or separated through a rotary clamping structure; the rotary clamping structure comprises a groove formed in the first pipe joint and a flange arranged on the second pipe joint; one end of the groove is provided with a notch capable of enabling the flange to slide into the groove; the flange slides into the groove so as to be clamped with the groove; meanwhile, a bolt on the flange is in threaded connection with a bolt hole in the groove; a bell and spigot and a socket are formed in the ends, connected with each other, of the first pipe joint and the second pipe joint respectively; a bell and spigot step is arranged on the outer wall of the bell and spigot; a socket step is arranged on the inner wall of the socket; the bell and spigot is inserted into the socket; and the outer wall of the bell and spigot is in close fit with the inner wall of the socket. The invention further provides a connecting method of the large-diameter reinforced concrete jacking pipe. According to the large-diameter reinforced concrete jacking pipe and the connecting method provided by the invention, and a large amount of on-site installation time can be saved, effective fastening connection is achieved, so that connection of the adjacent pipe joints is reinforced.

Description

technical field [0001] The invention relates to the technical field of trenchless engineering pipe jacking, in particular to a large-diameter reinforced concrete pipe jacking and a connection method. Background technique [0002] In recent years, with the development of society and the advancement of science, trenchless technology, especially pipe jacking construction technology, has been rapidly developed and applied. The pipe jacking method is to use the jacking force of the jacking equipment in the working pit to overcome the friction between the pipe and the soil, and push the pipe into the soil according to the designed slope. The second section of the pipe body, and the earthwork is transported out. [0003] Trenchless pipe jacking technology is widely used in the fields of municipal engineering and road engineering. Among them, the laying of underground pipelines in underground cities, especially power pipelines, is mainly made of large-diameter reinforced concrete p...

AI Technical Summary

Problems solved by technology

However, traditional pipe jacking only adopts simple connections in engineering applications. The connection method is relatively fragile, and the sealing is not good, and it is prone to misalignment and leakage of pipe joints, which affects the progress of pipe jacking construction and project quality.

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