Accordingly the surrounding rocks were reinforced by bolting and grouting, and the grid steel frame reinforced concrete was used to control the floor heave.
英
美
释义
因此,采用锚注技术加固围岩和格栅钢架混凝土反拱治理底鼓的治理措施,根治了巷道变形,取得了良好的经济效益。
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