论文部分内容阅读
我矿的电耙道长期以来一直采用钢筋人工混凝土或木支护,据初步统计因其支护可靠性差导致电耙道垮塌而造成的采场损失率平均达20.3％最高为31％,为寻求较为理想的支护效果,1981年底我们从喷锚支护小型试验入手开始逐步推广使用,目前应用喷锚支护在六条电耙道、三个硐室、一条电耙联道、一条沿脉巷道共施工417.8米,随着相继投入使用,均收到良好效果,现简介如下。
Electric mine harrows have long been used reinforced concrete or wood support, according to preliminary statistics due to poor reliability of their support led to the collapse of the electrical rake caused by an average loss rate of up to 20.3% up to 31% The ideal supporting effect, the end of 1981, we start from the shotcrete and anchor support start gradually began to use, the current application of spray anchor support in the six electric rake, three chambers, an electric rake Road, along a vein roadway A total construction of 417.8 meters, with one after another into use, have received good results, are as follows.