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在长壁开采过程中不可避免地会对顶板岩层产生强烈扰动,这种扰动可能扩展到开采区域以外的地方,并且岩石变形破坏的形式也不相同。当岩层坚硬时,储存的能量可能频繁地以高能量微震形式释放出来。当岩层本身所储存的能量无法缓慢释放时,矿震现象常常会发生。研究表明,岩层本身所储存的能量与岩层本身的尺寸有密切的关系。因此,可以采用一些方法或措施来减少采矿诱发的矿震。该措施基于人为的方法破坏储存弹性能的岩层结构,其中最有效的方法之一就是采用定向水压致裂技术。
In the process of longwall mining, it is inevitable that there will be strong disturbance to the roof strata. Such disturbance may extend beyond the mining area and the deformation and destruction of the rock are not in the same form. When the rock is hard, the stored energy may frequently be released as high-energy microseismic. Mineburst phenomena often occur when the energy stored in the formation itself can not be released slowly. Research shows that the energy stored in the rock itself is closely related to the size of the rock itself. Therefore, some methods or measures can be taken to reduce mining-induced mine shocks. One of the most effective methods, based on a man-made approach, is to destroy the structure of the rock mass that has the properties of storage bombs. This technique uses directional hydraulic fracturing.