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Rock burst roadway bottom plate buffering and damping structure and arrangement method thereof

A technology of impacting ground pressure and roadway, which is applied in the direction of infrastructure engineering, tunnels, protection devices, etc., can solve the problems of roadway floor being impacted, etc., and achieve the effects of improving vibration response speed, rapid absorption, and rapid impact energy

Active Publication Date: 2020-12-08
TIANDI SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the rock burst disaster occurs, the passive protection of the roadway floor is particularly important, and only relying on support or reinforcement cannot solve the problem that the roadway floor is severely impacted

Method used

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  • Rock burst roadway bottom plate buffering and damping structure and arrangement method thereof
  • Rock burst roadway bottom plate buffering and damping structure and arrangement method thereof
  • Rock burst roadway bottom plate buffering and damping structure and arrangement method thereof

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Embodiment Construction

[0032] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The embodiments and simplified descriptions of the invention do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed a...

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Abstract

The embodiment of the invention provides a rock burst roadway bottom plate buffering and damping structure and an arrangement method thereof. The rock burst roadway bottom plate buffering and dampingstructure comprises an upper bearing layer, a middle filling layer and a lower flat layer which are sequentially stacked. The middle filling layer is formed by mixing high-rigidity convex smooth particles, low-friction sliding particles and deformable damage energy absorption particles. The structure is not prone to deformation and damage in a static load state, the middle filling layer can generate rapid sliding dislocation and compression deformation under the impact load effect of a bottom plate, part of energy is absorbed and consumed, the function of attenuating impact waves of a weak interlayer can be achieved, and therefore the impact speed and release of the impact energy on the surface of the bottom plate can be greatly reduced, and impact damage of a roadway to the bottom plate is avoided. Meanwhile, compared with an existing independent supporting and reinforcing measure, the structure has the advantages that process is simple, and operation is convenient.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a shock-absorbing structure and an arranging method for the floor of a rock burst roadway. Background technique [0002] Rockburst is a major dynamic disaster encountered in coal mining. It is a dynamic phenomenon characterized by sudden, sharp and violent damage caused by the release of deformation energy of coal and rock mass around mine shafts and stopes. Simply put, rock burst is the sudden failure of coal and rock mass. my country is rich in coal resources, but the superior coal resources in shallow geological deposits are increasingly depleted, and it is an inevitable trend for the development of the coal industry to gradually shift to deep mining. With the increase of mining depth, rock burst disasters occur frequently, which poses a serious threat to coal mine production safety. [0003] Rockburst disasters have caused great damage to the roadway, among which the impact ...

Claims

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Application Information

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IPC IPC(8): E21D11/00E21F15/00E02D31/08
CPCE21D11/00E21F15/00E21F15/005E02D31/08Y02A30/30
Inventor 吴拥政褚晓威吴志刚付玉凯陈金宇
Owner TIANDI SCI & TECH CO LTD
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