Three-dimensional asymmetrical supporting system

An asymmetric, three-dimensional technology, applied in shaft equipment, shaft lining, mining equipment, etc., can solve problems that are difficult to meet the support needs of deep high-stress roadways and chamber groups, affect the production and safety of deep rock mass engineering, and difficult to support To achieve the effect of simple structure, reasonable force coordination and strong support ability

Inactive Publication Date: 2012-07-11
SHANDONG UNIV
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  • Abstract
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Problems solved by technology

In recent years, there are few studies on this problem, and the related research on the asymmetric deformation and failure of deep roadways is still very immature. systematic research on
[0004] Generally speaking, under the conditions of deep high-stress soft rock and broken rock ma

Method used

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  • Three-dimensional asymmetrical supporting system
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  • Three-dimensional asymmetrical supporting system

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Embodiment Construction

[0023] The present invention will be further described below in combination with the accompanying drawings and specific embodiments.

[0024] Such as Figure 1-2 , a three-dimensional asymmetric support system, including multiple concrete-filled steel tube single frames 1 (closed under normal circumstances, and can also be designed as non-closed single frames in special cases), and multiple concrete-filled steel tube single frames 1 are connected by longitudinal connecting beams 2 A support in the shape of a roadway 8 is formed together, a metal mesh 5 is laid between the support and the surrounding rock of the roadway, and the anchor cable hole is arranged on the longitudinal connecting beam 2, and the anchor cable 4 passes through the anchor cable hole of the longitudinal connecting beam 2 and the metal mesh 5 Extend outward, and at the same time, anchor rods 3 are arranged in the surrounding rock of the roadway according to the design row spacing.

[0025] The concrete-fil...

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Abstract

The invention relates to a three-dimensional asymmetrical supporting system, which comprises a plurality of steel tube concrete single racks. The steel tube concrete single racks are connected together via longitudinal connecting beams to form a support in the shape of a tunnel in an encircling manner, a metal screen is laid between the support and a surrounding rock of the tunnel, anchor cable holes are distributed on the longitudinal connecting beams, anchor cables penetrate through the anchor cable holes of the longitudinal connecting beams and the metal screen to outwards extend, and simultaneously anchor rods are arranged in the surrounding rock of the tunnel according to designed inter-row spaces. The three-dimensional asymmetrical supporting system has the advantages that pertinence and supporting ability are high, the structure is simple, devices are connected conveniently, protecting surface area is large, stability is good and stress is reasonable in coordination.

Description

technical field [0001] The invention relates to a deep engineering support system, in particular to a three-dimensional asymmetric support system for deep tunnels. Background technique [0002] With the development of society and economy, more and more underground rock mass projects such as coal mine roadways, highway and railway tunnels and large hydropower stations are being built, and the situation of deep roadways and chamber groups with large buried depth and large cross-sections is gradually increasing. The ground stress increases, the water leakage increases, the ground temperature rises obviously, and the support of deep soft rock and joint broken rock mass becomes more and more difficult. In view of the characteristics of large deformation and difficult support of deep mine roadways, special research has been carried out on the support methods of deep high-stress soft rock large-section roadways at home and abroad. Steel bracket support to the combined support of a...

Claims

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Application Information

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IPC IPC(8): E21D11/14E21D11/04E21D21/00
Inventor 李为腾李术才王琦李智王德超王洪涛王汉鹏江贝
Owner SHANDONG UNIV
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