Inclined shaft TBM suitable for small curve turning

Abstract

The invention discloses an inclined shaft TBM suitable for small curve turning. The inclined shaft TBM suitable for small curve turning comprises a variable-diameter cutterhead, a variable-diameter front shield and a main propelling mechanism, and the cutterhead is used for excavating a tunnel; the front shield is connected with the cutterhead, and the front shield can abut against the wall of thetunnel; and the main propelling mechanism is connected with the front shield and used for driving the front shield to move so as to control the tunneling direction of the cutterhead. According to theinclined shaft TBM suitable for small-curve turning, the main propelling mechanism drives the front shield to move, so that the tunneling direction of the cutterhead can be adjusted to meet the turning requirement when the tunneling direction of the tunnel needs to be changed, and meanwhile, the inclined shaft TBM can adapt to ultra-small-radius turning through reducing operation of the cutterhead and the front shield. Compared with a traditional heading machine which cannot carry out raise boring tunnel construction through a heading machine technology, the inclined shaft TBM suitable for small curve turning can adapt to heading construction of variable-diameter inclined shafts, small turning inclined shafts, forward inclined shafts and reverse inclined shafts.

Description

technical field [0001] The invention relates to the technical field of tunneling, in particular to an inclined shaft TBM suitable for small curved turns. Background technique [0002] Roadheader technology represents the latest generation of tunneling technology. It has outstanding advantages such as high construction efficiency, safety and reliability, less over- and under-excavation, and a high degree of mechanization. It is the preferred solution for tunnel construction at present. [0003] Taking the construction of a pumped storage power station as an example, it is necessary to build multiple tunnels between two reservoirs with a certain height difference to realize functions such as energy storage, power generation, and material and personnel transportation. This type of tunnel has the characteristics of large slope, long distance, alternating positive and negative slopes, multiple turns, and variable diameters. At present, the drilling and blasting method is mainly ...

AI Technical Summary

Problems solved by technology

At present, the drilling and blasting method is mainly used for construction, which faces a series of problems such as prominent safety problems, difficult quality control, and low efficiency.

Under the current technical conditions, a series of problems such as support, slag discharge, support, and material transportation must be solved in order to realize the raising construction, and some difficult projects require the roadheader to have the ability to turn with an ultra-small radius. Structural design and internal space layout put forward extremely high requirements. At present, there is no corresponding roadheader product, so it is impossible to use roadheader technology for raised shaft tunnel construction

[0004] Therefore, how to prevent the traditional roadheader from being unable to meet the construction requirements of the raised shaft tunnel is a technical problem currently to be solved by those skilled in the art.

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