Strut device for supporting goaf and method for supporting goaf
A technology of empty space and pillars, which is applied in the direction of pillars/brackets, earthwork drilling, mining equipment, etc. It can solve the problems of endangering the safety of construction personnel, uneven bearing of pillars, and large bearing capacity of pillars, so as to achieve good reliability and excellent construction technology. The effect of short process and low cost
Inactive Publication Date: 2016-11-16
WUHAN INSTITUTE OF TECHNOLOGY
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Problems solved by technology
However, in the traditional support method, the above-mentioned pillars have small deformation and high rigidity, not only it is difficult to effectively play the "self-supporting" role of the surrounding rock, but also under the action of underground rock burst, the pillars are easy to bend and burst and fail; In addition, the load bearing of each pillar in the empty area is not uniform, so that some pillars are damaged in advance due to the large bearing capacity, which leads to the collapse of the surrounding rock at the top of the empty area, endangering the safety of construction personnel
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[0025] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0026] Such as figure 1 The above-mentioned pillar device for supporting the empty area includes a pillar installed inside the empty area, the upper end of the pillar is fixedly connected with a spring support, and the upper end of the spring support can contact the top surrounding rock of the empty area. Such as figure 2 As shown, the spring support includes an upper seat plate 1 and a lower seat plate 4, the upper seat plate 1 can be in contact with the surrounding rock at the top of the empty area, the lower seat plate 4 is fixedly connected with the upper end of the pillar, and the upper seat plate 1 and the lower seat plate 4 A spring 5 is installed between them, the upper end of the spring 5 is connected with the upper seat plate 1 (weldable), and the lower end of the spring 5 is conn...
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The invention discloses a strut device for supporting a goaf. The strut device for supporting the goaf comprises a strut arranged inside the goaf, the upper end of the strut is fixedly connected with a spring support, and the top of the spring support can make contact with surrounding rock on the top of the goaf. The spring support comprises an upper support plate and a lower support plate, the upper support plate can make contact with the surrounding rock on the top of the goaf, and the lower support plate is connected with the upper end of the strut. A spring is arranged between the upper support plate and the lower support plate, the upper end of the spring is connected with the upper support plate, and the lower end of the spring is connected with the lower support plate. The upper support plate and the lower support plate are connected through matching of connecting bolts and adjusting nuts. The invention further discloses a method for supporting the goaf. The strut device for supporting the goaf and the method for supporting the goaf have the beneficial effects that the initial state of the spring support is a compressed state, a large amount of elastic energy is accumulated, the influences of live loads, bending moment and transverse loads on the strut can be reduced, high buffer and vibration reduction performance is achieved, and the strut is protected against failure caused by bending and pressed explosion.
Description
technical field [0001] The invention relates to the technical field of hollow space support in underground construction, in particular to a support device for supporting hollow spaces and a method for supporting hollow spaces. Background technique [0002] With the continuous development of my country's mining industry, there are more and more underground operations. When working underground, due to the complex nature of the underground rock and soil mass, which is different from the surface, the support theory on the surface cannot be fully applied. Therefore, how to realize the safe support of the underground space is a difficult point in underground construction. [0003] At present, the traditional support theory of "strong support and hard roof" is still widely used for the support of the empty area of the underground mine working face, that is, reinforced concrete piles, wooden piles, and single hydraulic pillars are used for support. However, in the traditional su...
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IPC IPC(8): E21D15/02E21D15/55
CPCE21D15/02E21D15/005E21D15/55
Inventor 张电吉邓天赐倪小山习本军袁兵蔡桂生吝曼卿张卫中徐亮潘登
Owner WUHAN INSTITUTE OF TECHNOLOGY