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在复杂的矿山地质条件下,为了维护巷道,顿涅茨矿区广泛采用水泥砂浆在金属拱型支架壁后进行注浆,并对巷道围岩进行水泥浆或其他胶结材料的压力注浆。这种方法效果很好。它的特点是简单易行,工艺性好,还可与其他方法配合使用。可是,为了有效地使用这种加固岩石的方法,必须有具体条件下关于巷道围岩岩体状态的详细资料,其中应说明岩体中有无张力裂隙,确定其尺寸,查明破碎带的形式,以便算出注浆孔的合理深度及合适的布孔方式。
In the complex geological conditions of mining, in order to maintain the roadway, extensive use of cement mortar in the Donets mining area in the metal arched stent wall grouting and pressure grouting grout or other cementing material for the surrounding rock. This method works well. It is characterized by simple, good workmanship, but also with other methods. However, in order to effectively use this method of reinforcing the rock, detailed information on the rock mass state of surrounding rock in the tunnel must be given under specific conditions, including the presence or absence of tension cracks in the rock mass, the size of the rock mass, and the form of the fractured zone , In order to calculate the reasonable depth of the grouting hole and the appropriate way of cloth.