TBM underground dismounting method based on double-line work

Abstract

The invention provides a TBM underground dismounting method based on double-line work. The method is used for solving the problem that chambers need to be dismounted on a large scale in TBM dismounting during double-line work in the prior art. According to the TBM underground dismounting method based on double-line work, TBMs on the line with a shared dismounting chamber are firstly dismounted, then TBMs on the line with no shared dismounting chamber are moved into the shared dismounting chamber through translation by a translation transverse channel which is arranged between the double linesand connected with the shared dismounting chamber and can allow the TBMs to pass, and the TBMs moved into the shared dismounting chamber are dismounted. By means of the method, translation of the TBMsbetween the two lines is achieved, undamage dismounting of the TBMs of the two lines is completed through the shared dismounting chamber, the dismounting chamber is prevented from being repeatedly built, the length and the height of the dismounting chamber are reduced, and dismounting construction is convenient; and meanwhile, equipment investment is saved, civil engineering investment is reduced, engineering risk is reduced, and the construction period is shortened.

Description

technical field [0001] The invention belongs to the field of tunnels and underground engineering, in particular to an underground TBM dismantling method based on double-line operation. Background technique [0002] Urban rail transit construction is an important part of the urbanization process. In the construction of urban rail transit projects in hard rock formations, the drill and blast method is traditionally used for construction, but there are defects such as low construction efficiency and unfriendly environment. Tunnel Boring Machine (TBM) is an engineering method with high comprehensive efficiency, safety, reliability and environmental friendliness, whose tunneling speed is about 3 to 5 times that of drill and blast method. However, TBM is usually a large-scale equipment, and its installation and disassembly will be limited by surrounding conditions. When the ground is not available, it is necessary to make full use of the limited underground space at the construct...

AI Technical Summary

Problems solved by technology

Although the disassembly of the TBM can be completed underground, when the left line and the right line are operated at the same time, it is necessary to dig a cavern for each line, which requires a large amount of engineering and high cost

Images