煤巷锚网支护工艺技术研究与实践

Research and Practice on the Technology of Anchor Net Support in Coal Roadway

摘要: 煤巷支护中主要采用棚式支架、锚网、锚索、锚注等支护方式，在复杂地质状况下支护的安全与否往往很难能够预先得到判定，结合鲍店煤矿实际情况，从现代化信息化施工的要求出发，需要研究一个围岩稳定性判定的预警系统，实现巷道围岩稳定状态的预先判定。运用反分析理论来反演巷道岩体的力学特性参数，再结合数值分析软件和理论计算来获得巷道围岩稳定性判断的具体指标和参数，结合待判定巷道的前期位移、应力及顶板离层的监测资料，能够在实际生产使用中来提前判定巷道围岩所处的状态，从而实现煤巷的安全支护。

Abstract: Coal tunnels are mainly supported in shed stent, anchor net, anchor cable, anchor injection, etc. Under complex geological conditions of support, the safety or not is often difficult to get to pre- judge. Combined with the actual situation of Baodian Mine, from the construction of modern in-formation technology requirements, a need to study the stability of surrounding rock of the early warning system is determined to achieve pre-determination of the steady state of roadway sur-rounding rock. Using anti-analysis theory to anti-inverse mechanics characteristic parameter of the roadway rock mass, combined with theoretical calculations and numerical analysis software to obtain specific indicators and parameters to determine the roadway of surrounding rock stability, and combined with the displacement of the roadway to be pre-judged, stress and roof separation monitoring data, it is possible to use the actual production status roadway surrounding rock which is determined in advance, enabling coal roadway safety support.