中间梯度法在采空区勘测中的应用

中间梯度法(central gradient array method)指的是在供电电极AB之间1/3—1/2的范围内进行梯度测量的方法。中间梯度法不单一的使用于AB极的测线上进行相应的观测,且对于相邻的测线上也能起到一定的观测作用。中间梯度法主要适用于陡倾的高阻岩脉中,例如岩层接触界限和伟晶岩脉以及石英脉等,且中间梯度法的工作效率较高,可相应的节约工作时间,本文就中间梯度法在采空区勘测中的应用展开研究和探讨。

山西蒲县某矿井田东南部边界采空区探测定向钻孔实践研究

为查明山西蒲县某矿井田东南部边界是否存在煤层采空区及采空区积水,查明资源赋存情况,采用千米钻机定向勘探,研究制定了定向钻孔的设计方案。该工作从煤矿实际情况出发,介绍了可行的两种设计方案,并且给出了具体的钻孔施工工序,可以为相关的实际工程案例提供指导与借鉴。

大尺度采空区岩体的工程地质调查与评价

通过对采空区区域岩层的地质条件的系统勘测，全面掌控采空区的岩体组成、划分、结构面、岩层类型、稳定性等多种基础资料。为更加合理的制定综合治理的方案和措施提供必要的依据，也为今后的生产提供了资料。

Application of multi-channel two-dimensional transient Rayleigh wave exploration in goaf detection

The transient Rayleigh wave exploration has high detection accuracy in shallow exploration. The effect of detection array is comprehensive reflection of the velocity of rock and soil mass. Therefore, the roiling multi-channel transient acquisition system has been adopted in this study, which turns one dimensional transient Rayleigh wave exploration into two dimensions, consequently, the two-dimensional velocity distribution of rock and soil mass under the survey line has been achieved. Through comparing with the shallow seismic reflected wave exploration, the result indicates that the rolling multi-channel transient acquisition system has accurate resolution. Thus, in the process of the shallow reflected wave exploration, if the surface wave has developed, the coalition between the reflected wave exploration and the two-dimensional transient Rayleigh wave exploration should actualize the accuracy of exploration.