Subjected to actual measure method and technical level, it is difficult to predict the distribution of sedimentary facies of underground strata by rule and line .
限于目前的测量手段和技术水平，要做好地下地层沉积相的预测是很难的。
The strata movement and the ground surface subsidence caused by underground mining are serious underground engineering problems.
地下开采引起的岩层移动和地表沉陷是一个非常严重的地下工程问题。
The seismic wave lies the count for much parameter that the dissemination speed in the quality BE, in the seismic data processing that reach agreement to release in the underground rock strata.
地震波在地下岩层介质中的传播速度是地震资料数字处理和解释中的非常重要的参数。
Conclusions Although void formed due to underground mining is the origin of the strata movement, side confinement of the strata played important role for the direction of the movement.
结论虽然由于无效形成地下开采，是地层运动起源，地层侧隔离发挥了该运动方向的重要作用。
From the attitude of strata and the number of characteristic point at an underground non-bedded shape room, the method to determine the equation of stratum structure was presented.
根据非层状地下空间处地层产状及定位特征点数，给出了确定地层构造形态的方法。
From the attitude of strata and the number of characteristic point at an underground non-bedded shape room, the method to determine the equation of stratum structure was presented.
根据非层状地下空间处地层产状及定位特征点数，给出了确定地层构造形态的方法。
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