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Method for constructing inclined shaft by applying TBM (Tunnel Boring Machine) with earth pressure balancing function

An earth pressure balance and inclined well technology, which is applied in the field of TBM construction in the construction of inclined wells with large slopes and high buried depths, can solve problems such as many construction difficulties, variable strata, and technical complexity, and achieve reduced construction risks, short construction periods, and Simple operation effect

Inactive Publication Date: 2012-11-28
CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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Problems solved by technology

However, TBM construction is a brand-new topic in the field of coal mine construction, with its strong comprehensiveness, complex technology, many construction difficulties, and a series of problems. waiting to be solved

Method used

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  • Method for constructing inclined shaft by applying TBM (Tunnel Boring Machine) with earth pressure balancing function
  • Method for constructing inclined shaft by applying TBM (Tunnel Boring Machine) with earth pressure balancing function
  • Method for constructing inclined shaft by applying TBM (Tunnel Boring Machine) with earth pressure balancing function

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Embodiment Construction

[0025] A method of using TBM with earth pressure balance function to construct inclined shaft, suitable for figure 1 The construction of the inclined shaft with a slope of 6°, a buried depth of 660m and a length of 6134m, the specific implementation process includes:

[0026] 1. Before the TBM tunneling construction, the advanced geological drilling rig 12 performs advanced geological prediction construction of the formation in front of the TBM equipment.

[0027] 2. In the process of TBM tunneling construction, using the eccentric design of the inclined shaft TBM cutter head 1, the center of the TBM cutter head 1 is designed to be 10mm higher than the center of the TBM shell, combined with the conventional method of TBM attitude control, and the automatic guidance equipped on the TBM is used System, real-time observation of TBM attitude, timely adjustment of construction plan, and control of TBM tunneling attitude.

[0028] 3. Do well the auxiliary construction technology of TBM inc...

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Abstract

The invention relates to a method for constructing an inclined shaft by applying a TBM (Tunnel Boring Machine) with an earth pressure balancing function, wherein the method comprises the following steps: (1) judging the position of a waterproof layer in the front of TBM construction before carrying out TBM tunnelling construction; (2) drilling by utilizing an advanced detecting / grouting drilling machine to carry out underground water pre-discharging construction; (3) carrying out continuous downhill tunnelling construction by utilizing an inclined shaft TBM method; (4) conveying the air volume required for TBM construction to the last ring of lining segment of TBM construction equipment; (5) carrying out inclined shaft counter-slope underground water pump drainage; (6) carrying out long-distance large-gradient material transportation and deslagging; and (7) carrying out conversion construction in two tunnelling modes including a single shield TBM opening manner and an earth pressure balanced shielding manner. The method disclosed by the invention has the advantages of being short in construction period, rapid in speed, simple in operation and low in cost; simultaneously, the adaptability to stratum characteristics contains hard rocks and soft rocks; the geological application range of equipment is expanded; and the construction risks can be effectively lowered.

Description

Technical field: [0001] The invention belongs to a building construction method, and particularly relates to a method for using a TBM with an earth pressure balance function to construct an inclined well. The method is suitable for TBM construction of a large slope, high buried and deep inclined well. Background technique: [0002] At present, the construction of inclined wells generally adopts freezing + drilling and blasting method. The common method of inclined shaft construction is slow (70-100m / month), high cost, high production and operation cost, difficult safety management, poor adaptability to geological conditions (water inrush, rock burst, muddy surrounding rock, etc.), The surrounding rock is disturbed and the roadway is poorly formed. [0003] The full-section tunnel boring machine (TBM for short) integrates drilling, digging, and protection, and can effectively realize the factory operation of long and large tunnel construction. It is the world's most advanced large-...

Claims

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Application Information

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IPC IPC(8): E21D9/02E21D11/04E21F16/02E21F1/00
Inventor 雷升祥毛东晖徐维明柴永模韩冰刘树山邹春华王守国李建强曲波
Owner CHINA RAILWAY CONSTR BRIDGE ENG BUREAU GRP
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