岩石湿度是对其强度和蠕动性有显著影响的因素之一。湿度增大能使岩石强度降低,并加剧井下空气的闷热程程。因此,当预测巷道稳定性时,应考虑岩石的自然湿度,以便使实验室中所确定的岩石力学特性与井下岩体中岩石力学特性更加接近。钻孔岩芯曾长时间处于几十个大气压的泥浆作用下,故用芯确定的岩石湿度与岩体中岩石的自然湿度很不一致。岩石试样在运输和保存过程中,水分散失速度很怏,一般来说,确定岩石自然湿度甚为困难。苏联有人提出了一种保存岩石试样的方法,并作了专门试验。先把各种岩石(石灰岩、砂岩和页岩)一部分试样长时间浸在水中,另一部分试样用湿纱布妥善包裹好并用厚石腊层封严。然后每两天确定一次这两部分试样的湿度。试验表明,用湿纱布包裹并 Rock moisture is one of the factors that significantly affects its strength and creep. Humidity increases the rock strength can be reduced, and exacerbate the hot air downhole process. Therefore, when predicting roadway stability, the natural humidity of the rock should be considered in order to bring the rock mechanics properties identified in the laboratory closer to the rock mechanics characteristics in the downhole rock mass. Drilled core has been under the action of a few dozen atmospheric muds for a long time, so the rock moisture determined by the core is very different from the natural rock mass in the rock mass. Rock samples in the transport and preservation process, water loss is very high, in general, to determine the natural rock is very difficult. Some people in the Soviet Union proposed a method for preserving rock samples and made special experiments. A few samples of various rocks (limestone, sandstone and shale) were first immersed in water for a long time, and the other sample was properly wrapped in wet gauze and sealed with a thick paraffin layer. Then determine the humidity of the two parts every two days. Tests show that wrapped with wet gauze and