To identify the signal of the weak reflected wave is a key problem to detect the thickness of the coal seam by using elastic wave.
弱反射波信号识别是声波法煤层厚度探测中的一个关键问题。
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale.
构造作用是控制井田范围内煤层厚度变化的主要地质因素。
From Hales method, reversed refracted wave method shows accuracy and efficiency in detecting the thickness of remained coal seam.
以哈尔·斯法为例，将相遇折射波法用于剩余煤厚探测中，具有精确、高效、快速的特点。
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