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A telescopic advanced pipe shed suitable for soft soil tunnels in mines

A mining method and pipe shed technology, applied in tunnels, tunnel linings, mining equipment and other directions, can solve the problems of small inclination angle, unreachable pipe shed inclination angle, reinforcement, etc., to reduce disturbance, save construction space, and simplify the process. Effect

Active Publication Date: 2021-06-29
JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a telescopic advanced pipe shed suitable for mining soft soil tunnels, which can solve the problem that the inclination angle of the pipe shed often cannot reach Small inclination angle, causing a large number of invalid reinforcement problems

Method used

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  • A telescopic advanced pipe shed suitable for soft soil tunnels in mines
  • A telescopic advanced pipe shed suitable for soft soil tunnels in mines

Examples

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Embodiment 1

[0030] In a typical embodiment of the present invention, such as figure 1 As shown, a telescopic advanced pipe shed structure suitable for mine method soft soil tunnels includes a drill bit 8, a drill rod connected to the drill bit 8, and a power actuator connected to and linearly drives the drill rod; the drill rod adopts a plurality of pipes Pipe shed steel pipes with increasing diameters are sequentially socketed; both sides of the drill pipe are also fixed with a propulsion mechanism for driving the power actuator, and the power actuator is connected to the propulsion mechanism; the power actuator A plurality of pipe shed steel pipes 1 are connected, and the tops of the plurality of pipe shed steel pipes 1 are connected with a limit step 4 , and a drill bit 8 passes through the limit step 4 . In this embodiment, the propulsion mechanism is an oil cylinder 2, the bottom end of the cylinder barrel of the oil cylinder 2 is fixed on the limit step 4, and the oil cylinder 2 is ...

Embodiment 2

[0047] In a typical implementation of the present invention, a method for supporting the advanced pipe shed using the telescopic advanced pipe shed structure suitable for soft soil tunnels in mines as described in Example 1 is disclosed. After the initial support, first implement the positioning of the pipe shed, adjust the attitude and inclination of the pipe shed, place the base against the main structure of the completed initial support, insert the drill bit 8 into the unexcavated tunnel surface soil, and insert the one-way valve It is connected with the hydraulic pump, presses the pressurized fluid into the oil cylinder 2 through the hydraulic pump, and pushes the drill bit 8 forward through the multi-stage piston 5 to push the whole tube shed into the soil. The reserve oil return valve 7 can be used to shorten the pipe shed to adjust the angle, etc.

[0048] It can be understood that, in this embodiment, after the advanced pipe shed is completed, the tunnel is excavated. ...

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Abstract

The invention discloses a telescopic advanced pipe shed structure suitable for soft soil tunnels in mines, belonging to the technical field of tunnels, including a drill bit, a drill rod connected to the drill bit, and a power actuator connected to and linearly driving the drill rod; the power actuator The mechanism is also connected to the propulsion mechanism for driving the power actuator; the power actuator is connected to or against a plurality of pipe shed steel pipes, the tops of the multiple pipe shed steel pipes are connected to or against the limit step, and the drill bit passes through the limit step . The invention can solve the problem that in the existing large-section soft soil tunnel, the inclination angle of the pipe shed often cannot reach a smaller inclination angle, resulting in a large number of ineffective reinforcement problems.

Description

technical field [0001] The invention belongs to the technical field of tunnels, and in particular relates to a telescopic advanced pipe shed suitable for soft soil tunnels in mining methods. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] The inventors have found that at present, in order to control formation deformation in large-section mining tunnels, advanced pipe sheds with small inclination angles (1°-3°) are generally provided for advanced support. In soft soil tunnels with large cross-sections, since steel arches with a spacing of less than 1m are commonly used in the design, the construction space of the advanced pipe shed is limited, and the inclination angle of the pipe shed often cannot reach the smaller inclination angle, resulting in a large number of ineffective reinforcements. In order to solve the above problems, at present, the me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/10E21D11/18
CPCE21D11/105E21D11/18E21D11/183
Inventor 王胜华郑召怡张文候登高王云博徐豹之
Owner JINAN MUNICIPAL ENG DESIGN & RES INSITITUTE GRP
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