Construction method for enabling rectangular pipe jacking machine to enter into tunnel in existing building

Abstract

The invention relates to a construction method for enabling a rectangular pipe jacking machine to enter into a tunnel in an existing building. The construction method is characterized by comprising the following steps: (1) setting up a tunnel-entering receiving buffer platform in the existing building at the tunnel-entering position; (2) setting a hanging point for a cutter head of the pipe jacking machine in the existing building at the tunnel-entering position; (3) chiseling off a portal before the pipe jacking machine enters into the tunnel; (4) adjusting all parameters and enabling the pipe jacking machine to enter into the tunnel; (5) plugging the portal after the rectangular pipe jacking machine enters into the tunnel; (6) detaching the cutter head, a chest plate and internal equipment of the pipe jacking machine, and transporting the cutter, the chest plate and the internal equipment of the pipe jacking machine out of a channel; and (7) leaving a housing of the pipe jacking machine in the channel. The construction method disclosed by the invention has the advantages of smoothly taking an inner core part of the pipe jacking machine out of the existing building and saving investment in construction of a tunnel.

Description

technical field [0001] The invention relates to a construction method for a rectangular pipe jacking machine to enter a hole in an existing building. Background technique [0002] With the development of urbanization, the development of urban underground space is becoming more and more frequent. The emergence of the technical field of rectangular jacking pipes can improve the utilization rate of space compared with circular jacking pipes. When the rectangular pipe jacking machine is in operation, it is hoisted into the starting well, excavated through the tunnel between the starting well and the receiving well, and then enters the hole from the receiving well, and then hoisted to the ground for recovery. However, with the increase of urban underground construction, some places are restricted by existing buildings during construction. After the pipe jacking machine completes tunnel excavation, it is no longer possible to set up a receiving shaft. Because the pipe jacking ma...

AI Technical Summary

Problems solved by technology

However, with the increase of urban underground construction, some places are restricted by existing buildings during construction. After the pipe jacking machine completes tunnel excavation, it is no longer possible to set up a receiving shaft. Due to the large size of the pipe jacking machine, it greatly increases the difficulty of construction

There is an urgent need to develop a construction method that can enter the hole with the rectangular pipe jacking machine in the existing building, so as to solve the problem that the rectangular pipe jacking machine in the prior art cannot enter the hole and recover in the existing building

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