TBM emergency water burst resistant system

A technology of anti-surge and dam filling, which is applied in mining equipment, tunnels, earth-moving drilling, etc., can solve the problems of high flow rate and influence of TBM equipment, etc. Effect

Pending Publication Date: 2019-08-30
新疆额尔齐斯河投资开发(集团)有限公司
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Problems solved by technology

When the tunnel section belongs to the water-rich section, there may be multiple sudden super-large water inflows, and the maximum single-point water inflow is two to three times or even more than 10 times that of the water-poor area, far exceeding the design water inflow, and the flow velocity is large. Attenuation, which has a great impact on TBM equipment

Method used

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  • TBM emergency water burst resistant system
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  • TBM emergency water burst resistant system

Examples

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Embodiment Construction

[0019] A TBM emergency anti-surge system, in which a circular groove 1 is arranged on the tunnel wall at the end of the excavated TBM, and a rubber filling dam 2 is placed in the circumferential groove. There is a fixing belt on the outside of the rubber filling dam 2, and the fixing belt 3 passes through the anchor Fixed on the periphery of the circumferential groove, the rubber filling dam 2 is filled with water through the existing TBM water supply pipe connected to the branch pipe, and the valve is installed on the branch pipe. The rubber filling dam 2 has at least two upper and lower layers, and each layer has a separate water filling port and water discharge port. The two sides of each layer are curved to match the circumferential groove. If it is filled with water, it will gradually widen from bottom to top, similar to the shape of a protractor.

[0020] The water-filled height of the rubber-filled dam 2 is 1 / 4 to 1 / 2 of the tunnel height, which basically meets the water...

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Abstract

The invention relates to a TBM emergency water burst resistant system, and belongs to the technical field of tunnel tunneling. According to the scheme, a circumferential groove is formed in the wall of a tunneled TBM tail tunnel, a rubber water filling dam is placed in the circumferential groove, a fixing belt is arranged on the external of the rubber water filling dam, the fixing belt is fixed tothe periphery of the circumferential groove through an anchoring part, the rubber water filling dam is connected with a branch pipe through an existing water supply pipe to supply water, a valve is mounted on the branch pipe, the rubber water filling dam is provided with at least an upper layer and a lower layer, and each layer is provided with a water filling port and a drainage port individually. A water filling bag is arranged in a modularization mode, repairing is convenient, the water blocking performance is outstanding, and the operation is safe and reliable; the height of water blocking and the operation state are continuously controllable; time for water filling and drainage is short, and operation management is easy; and the service life is long, and the comprehensive benefit ishigh.

Description

technical field [0001] The invention belongs to the technical field of tunnel excavation and relates to an emergency waterproof system for a TBM when a large amount of water gushes out. Background technique [0002] TBM is a special construction machine for tunnel excavation. Modern TBM integrates mechanical, electrical, hydraulic, sensor and information technologies. Support, measurement guide deviation correction and other functions. TBM has been widely used in subway, railway, highway, municipal, hydraulic tunnel and other projects. [0003] The working principle of the TBM is that a steel structure component is pushed forward along the tunnel axis while cutting the rock mass. The shell of this steel structure component is called the "shield shell". The shield shell acts as a temporary support for the excavated rock mass and bears the pressure of the surrounding surrounding rock. [0004] Water gushes will occur during construction. When a tunnel section belongs to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/107E21D9/087
CPCE21D9/087E21F17/107
Inventor 刘军生张建博翟永清倪志华韩祯武燕云涛张伟
Owner 新疆额尔齐斯河投资开发(集团)有限公司
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