煤巷锚杆支护在水采矿井中的应用

Application of Rock Bolting in Roadway of Hydro-mechanized Mines

煤巷锚杆支护是回采巷道支护改革的一个重要发展方向，尤其对水采矿井来说，在煤巷内实行锚杆支护，不仅能改善巷道的维护状况，降低成本，而且能有效控制顶板的垮落方式，提高回采率．在开滦吕家坨矿煤巷锚杆支护试验的基础上，进行了必要的理论分析，认为在水采矿井推广煤巷锚杆支护有历于提高水采矿井的经济效益．

Rock bolting can improve the roadway supporting, especially for the hydro_mechanized mines. It can not only improve the upkeep condition of roadway, but also efficiently control the roof caving. Thus, the cost decreases but the recovery increases. Based on the experiment of rock bolting in Lüjiatuo coal mine, the theoretical analysis have been presented to state that the rock bolting method is both beneficial and efficient in the production of hydro_mechanized mines.