Under composite roof inthe No.2 seamof Tunlan mine,bolt-rope strenthenningsupporttechnique is utilized to control roof ad decrease rock pressure,which has achieved good economic bene-fit.

• 介绍了屯兰矿在2号煤层复合顶板条件下,采用锚索补强支护技术,有效地控制了巷道顶板离层,减轻了矿山压力显现现象,取得了较好的经济效益。