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A multi-mode closed tbm suitable for the Dashanling Tunnel and its construction method

A construction method and closed-mode technology, which is applied in the field of multi-mode closed TBM and its construction, can solve problems such as poor adaptability and single function of shield tunneling/TBM

Active Publication Date: 2020-06-19
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a multi-mode closed TBM and its construction method suitable for Dashanling Tunnel, which solves the problems of single function and poor adaptability of shield tunneling / TBM in the prior art

Method used

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  • A multi-mode closed tbm suitable for the Dashanling Tunnel and its construction method
  • A multi-mode closed tbm suitable for the Dashanling Tunnel and its construction method
  • A multi-mode closed tbm suitable for the Dashanling Tunnel and its construction method

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Embodiment 2

[0035] Embodiment 2, a multi-mode closed TBM suitable for long mountain tunnels, the muck transportation system includes an equipment belt conveyor 11 and a continuous belt conveyor 13, the front end of the equipment belt conveyor 11 is connected to the central screw conveyor 9 or the bottom The reserved screw machine 6 is corresponding, that is, the center screw machine and the bottom reserved screw machine can be switched for use. When the center screw machine is used, the front end of the equipment belt conveyor 11 corresponds to the center screw machine, and is used to receive the slag in the center screw machine. Soil, when using the reserved screw machine at the bottom, the front end of the equipment belt conveyor 11 corresponds to the reserved screw machine at the bottom, and is used to receive the muck in the reserved screw machine at the bottom. The rear end of the equipment belt conveyor 11 is corresponding to the continuous belt conveyor 13, and is used to transport ...

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Abstract

The invention discloses a multi-mode closed TBM suitable for a long mountain tunnel and a construction method of the multi-mode closed TBM. The problems of single function and poor adaptability of a shield body or a TBM in the prior art are improved, the multi-mode closed TBM comprises a main engine, and a rear supporting system, the rear supporting system comprises a muck transportation system and a grout injection system, the shield body is internally provided with a main drive, a cabin is formed between the main drive and a knife disc, the cabin is provided with a mud circulation pipeline,the mud circulation pipeline is connected with a mud circulation system, the main drive is provided with a telescopic sealing device and a central screw machine, a bottom reserved screw machine is arranged at the bottom of the shield body, the front end of the center screw machine is located in the telescopic sealing device, and the center screw machine and the bottom reserved screw machine are connected with the muck transportation system or the mud circulation system. According to the multi-mode closed TBM suitable for the long mountain tunnel and the construction method of the multi-mode closed TBM, a closed TBM mode is used as a main mode, a mud-water mode, a high-density mode, a soil pressure balance mode and a drainage pressure relief mode are auxiliary modes of the multi-mode closedTBM, the multi-mode closed TBM can adapt to a plurality of working conditions, fast mode switching is realized, and the tunneling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel construction, in particular to a multi-mode closed TBM suitable for Dashanling tunnels and a construction method thereof. Background technique [0002] At present, according to the existing tunnel mechanized (shield / TBM) construction application experience, the mechanized construction equipment represented by the shield is widely used in shallow buried short-distance tunnels due to its characteristics of safe excavation under pressure and stable excavation surface. The mechanized chemical method equipment represented by rock TBM has been used more and more in long-distance, buried deep mountain tunnels relying on its fast and efficient excavation construction characteristics. [0003] When long-distance, buried deep mountain tunnels encounter complex strata that are difficult to distinguish, such as sudden mud and sand, local high water pressure, and broken zones, in order to ensure the constructio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D9/087E21D9/06E21D11/10E21F16/02
Inventor 李建斌袁文征郑康泰赵华阴书玉高文梁苏志学
Owner CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO LTD
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