井巷锚杆支护动态设计研究

随着开采深度的增加,传统支护已经达不到支护要求,锚杆支护技术在巷道支护中所起的作用和优势越来越明显,涵盖了井巷支护的各个领域。但随着锚喷技术的广泛应用,因锚杆设计参数不合理、施工质量不达标而出现万分之五的巷道支护不足,出现冒顶事故,大于60%的巷道支护过剩,使支护材料大量浪费。通过对锚杆支护动态设计研究,既达到支护设计的强度要求,又减少支护成本,降低劳动强度,增加掘进效率的目的。

Research on Dynamic Design of Bolting Support in Roadway

With the increase of mining depth,the traditional support already cannot reach support requirements,the role and advantage of bolting support technology in the roadway support is more and more obvious,covers each fields of roadway support.But along with the wide application of shotcreting and anchor technique,because anchor bolt design parameters is not reasonable,construction quality is substandard and that appear five-ten thousandths insufficient of roadway support,appear roof caving accidents,more than 6...