摘要
分析了屯兰矿目前在顺槽掘进中采用锚杆、锚杆网联合支护 ,但由于顶帮压力大 ,钢带局部撕裂 ,造成顶板下沉 ,提出采用钢架托梁可提高锚杆孔处抗拉强度 ,改善支护状况。
Because the pressure of roof side is bigger,makes the pa rt of steel belt to tear,the roof to sage by adopting bolting support-combinatio n ingat tunnel at present,so that steel suppot stemple is adopted,it can be rais ed the tensile strength of bolting hole, improved the state of support.
出处
《山西焦煤科技》
2001年第S1期66-68,共3页
Shanxi Coking Coal Science & Technology
关键词
顺槽
掘进
钢架托梁
支护
Gate Tunneling Steel support stemple Support
