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Inclined shaft open cutting lining section TBM main engine dropping method

A main engine and cut-and-cover technology, which is used in earth-moving drilling, mining equipment, tunnels, etc., can solve the research and patent problems of the falling method of the TBM main engine in the lining section without open-cut, and achieve high structural safety and reliability. The effect of small construction risk and reduction of construction difficulty

Active Publication Date: 2016-05-11
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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Problems solved by technology

[0003] At present, there is no research and patent on the falling method of the TBM main engine in the open-cut lining section of the inclined shaft project in China.

Method used

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  • Inclined shaft open cutting lining section TBM main engine dropping method
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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0024] A method for dropping a main engine of a TBM in an open-cut lining section of an inclined shaft. The specific implementation process is as follows:

[0025] 1. Weld the anti-twist mechanism, oil cylinder support seat and anti-slip reaction force support frame on the host shield body, and apply butter on the surface of the anti-slide reaction force support mechanism;

[0026] 2. Place and weld support on the bottom steel plate of the TBM departure area. The falling system of the main engine (bottom inclined support block, upper circular support, box girder and top inclined support block), between the box girders and between the box girder and the bottom plate steel plate Install the support and weld the reaction device at the position of the door;

[0027] 3. Use the on-orbit heavy object pushing system to push the TBM host to the design...

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Abstract

An inclined shaft open cutting lining section TBM main engine dropping method comprises the following steps of (1) welding an anti-twisting mechanism, an oil cylinder supporting seat and an anti-slip counter-force supporting rack on a main engine shield body, (2) placing and welding a main engine dropping supporting mechanism on a TBM starting area base plate steel plate and welding a counter-force device on a tunnel portal, (3) pushing a TBM main engine to a designated position, (4) positioning a jacking oil cylinder and welding the same with the oil cylinder supporting seat, (5) welding a carrier and the main engine dropping supporting mechanism, (6) removing a first layer steel support of the jacking oil cylinder and a first layer round support of the main engine dropping supporting mechanism, (7) alternatively removing all round supports supporting the main engine dropping supporting mechanism and inclined supporting blocks on the base plate steel plate, with the main engine dropping, removing the last round support of the oil cylinder and (8) removing a case beam to enable the carrier to be placed on the base plate steel plate and removing an oil cylinder bearer. By the use of the inclined shaft open cutting lining section TBM main engine dropping method, TBM construction coal mine inclined shaft open cut lining section main engine can drop and be placed; simple and convenient operation can be achieved; and high safety is provided.

Description

technical field [0001] The invention belongs to a building construction method, and is particularly suitable for a falling method of a TBM main engine in the lining section of an open cut in an inclined shaft of a coal mine during TBM or shield construction. Background technique [0002] At present, the construction of inclined shafts in coal mines usually adopts the freezing + drilling and blasting method. The construction progress of this method is slow (70-100 meters per month), the cost and production and operation costs are high, and the safety management is difficult. Poor adaptability to geological conditions, such as large disturbance to surrounding rock, and poor roadway formation. TBM integrates excavation, support and slag discharge and transportation procedures, and can effectively realize the factory operation of long tunnel construction. It is the world's advanced large-scale comprehensive underground cavern construction equipment, representing the highest leve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/06E21D9/02
Inventor 李守彪华伟雄米仕鹏董林强兰伟黄军
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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