Construction method for reinforcing and repairing damaged coal bunker at shaft bottom

Abstract

The invention discloses a construction method for reinforcing and repairing a damaged coal bunker at shaft bottom, and relates to the technical field of coal bunker reinforcing and repairing. According to the construction method for reinforcing and repairing the damaged coal bunker at the shaft bottom, coal stored in a coal bunker serves as an operation platform, the coal stored on the lower portion plays a role in filling and protecting walls, and climbing and suspension operation is avoided; and a coal bunker wall is supported through the combination of reinforced concrete and anchor cables, an overall coal bunker supporting structure is formed, the problem that a traditional coal bunker anchor-shotcrete supporting structure is low in strength is solved, the weak face of the coal bunker can be effectively prevented from being damaged by continuous friction and collision, and the service life is prolonged. Compared with the existing coal bunker reinforcing and repairing technology, the construction method for reinforcing and repairing the damaged coal bunker at the shaft bottom is less in equipment investment, small in construction space, low in cost, fast in progress, high in supporting strength, wide in application range and safe and reliable in technology.

Description

technical field [0001] The invention relates to the technical field of coal bunker reinforcement and repair, in particular to a construction method for reinforcement and repair of a damaged coal bunker at the bottom of a shaft. Background technique [0002] With the continuous improvement of the mining volume and depth extension level of mine engineering, the service life of the main coal bunker in the original design becomes longer. Due to the long-term impact of coal gangue on the coal bunker, the coal bunker wall collapses, or the stress of the geological original rock is released, causing coal The bunker support fails, causing damage to the coal bunker, and the storage capacity is greatly increased. If it is not repaired in time, the overall support structure of the coal bunker may fall off, coal hole accidents may occur, and even a large area may collapse, and the coal bunker will be completely damaged. Consequences of mine shutdown. [0003] Commonly used repair techn...

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Problems solved by technology

[0005] In order to solve the above technical problems, the present invention provides a construction method for strengthening and repairing the damaged coal bunker at the bottom of the shaft, which avoids climbing and suspended operations, breaks the problem of low strength of the traditional anchoring and shotcreting support of the coal bunker, and effectively prevents the weak surface of the coal bunker from continuing to rub Collision damage, increasing the service life of the coal bunker

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