Rigid-flexible combined supporting structure
A support structure, rigid-flexible technology, applied in vertical shaft equipment, shaft lining, mining equipment, etc., can solve the problems of difficult to deal with the problem of anti-collision support, the increase of cost, and the aggravation of rock burst damage.
Active Publication Date: 2016-06-08
CHENGDU UNIVERSITY OF TECHNOLOGY
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Problems solved by technology
[0002] In my country, with the deepening of coal mine mining and the increasing support required for tunnels, the damage of rock burst is also intensified. Most of the existing support methods are support structures under static surrounding rock pressure. It is difficult to deal with the current anti-shock support problem, because some new support methods must be proposed. Although so far, many scholars have proposed a lot of countermeasures, but these measures are either ideal in support effect, but the cost is high. The amplitude is increased, or the ideal effect of support cannot be achieved
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[0009] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0010] Such as figure 1 and figure 2 As shown, the rigid-flexible support structure is composed of arc U-shaped steel 1, straight U-shaped steel 2, U-shaped steel cable 3, steel cable 4, sleepers 5, and bottom plate 6; arc U-shaped steel 1 is arranged at the top of the roadway, and straight U-shaped steel 2 Arranged on both side walls of the roadway, the arc U-shaped steel 1 and the straight U-shaped steel 2 are connected by a U-shaped steel clamp cable 3; a sleeper 5 is arranged between the arc U-shaped steel 1, the straight U-shaped steel 2 and the surrounding rock 7 of the roadway; The opening of the U-shaped groove of the arc U-shaped steel 1 and the straight U-shaped steel 2 faces the sleeper 5; the bottom plate 6 is laid on the bottom of the roadway; In the U-shaped groove of the inner and straight U-shaped steel 2 and the lower edge...
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The invention relates to the field of roadway support, in particular to a rigid-flexible combined supporting structure. The rigid-flexible combined supporting structure is characterized in that an arc U-shaped steel is arranged at the top of a roadway; straight U-shaped steels are arranged on two side walls of the roadway; the arc U-shaped steel is connected with the straight U-shaped steels by a U-shaped steel clamp cable; crossties are arranged between the arc U-shaped steel, the straight U-shaped steels and the surrounding rocks of the roadway; openings of U-shaped grooves in the arc U-shaped steel and the straight U-shaped steels face the crossties; a base plates is laid at the bottom of the roadway; steel ropes are connected end to end to form a shape consistent with the cross section of the roadway, and are distributed in the U-shaped grooves of the arc U-shaped steel and the straight U-shaped steels and under the base plate. According to the rigid-flexible combined supporting structure provided by the invention, the U-shaped steels play a role of rigid supporting, when an impact load damages the U-shaped steels, the internal steel ropes play a role of flexible supporting, at the transitional stage from the rigid supporting to the flexible supporting, a buffer effect of the supporting structure for the impact load is achieved, so that an anti-impact effect is achieved.
Description
technical field [0001] The invention relates to the field of roadway support, in particular to a rigid-flexible combination support structure. Background technique [0002] In my country, with the deepening of coal mine mining and the increasing support required for tunnels, the damage of rock burst is also intensified. Most of the existing support methods are support structures under static surrounding rock pressure. It is difficult to deal with the current anti-shock support problem, because some new support methods must be proposed. Although so far, many scholars have proposed a lot of countermeasures, but these measures are either ideal in support effect, but the cost is high. The amplitude is increased, or the ideal effect of support cannot be achieved. Contents of the invention [0003] The problem to be solved by the present invention is to provide a support structure with low cost and good anti-shock effect. [0004] The technical scheme adopted in the present inve...
Claims
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IPC IPC(8): E21D11/00E21D11/02E21D11/14E21D11/20
CPCE21D11/006E21D11/02E21D11/14E21D11/20
Inventor 冯文凯刘志刚何山玉白慧林
Owner CHENGDU UNIVERSITY OF TECHNOLOGY