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近20年来随着生产的发展,联邦德国煤矿中冲击地压危险性增加了。虽然如此,在此期间冲击地压事故发生的次数仍基本保持不变。这主要是由于钻孔检测法已能安全可靠地识别冲击地压危险。不过其费用相当昂贵,所以人们又致力于开发一种简单的监测法。除了其他方法之外,可望利用连续监测岩体的地音发射来识别冲击地压危险状况。虽然不能认为单用地音法就能充分地监视冲击地压危险区,但是如果此法尽可能地与钻孔检测法配合使用,并拟定一种有目的的初
With the development of production in the past two decades, the risk of rockburst in the German coal mines in the Federal Republic of Germany has increased. Nevertheless, the number of rock burst accidents during this period still remained basically unchanged. This is mainly due to the fact that borehole detection methods have been able to safely and reliably identify the danger of rock burst. However, its cost is quite high, so people are also devoted to developing a simple monitoring method. Among other methods, it is expected to identify rock burst hazards using continuous monitoring of geophone emissions from rock mass. Although it is not considered that sound pressure alone can adequately monitor rock burst areas, if this method is used in conjunction with borehole testing as much as possible and a purposeful initial