特大断面硐室注射新型地质聚合物加强支护技术应用

Application of New Type Geological Polymer Injection to Strengthen Support Technology for Super Large Section Chamber

随着煤炭资源的大规模开发,大型设备进入煤矿井下,修筑特大断面硐室已必不可少,然而巷道围岩条件是千变万化的,采用何种支护方式才能既确保巷道的安全使用,又能降低费用,一直是困扰广大工程技术人员的一大技术难题。锚网索喷支护完的巷道岩体内,注射新型地质聚合物能提高围岩自身的强度保证巷道的稳定性。

With the large-scale development of coal resources,large-scale equipment has entered the coal mine and it is necessary to build a super large section chamber.However,the surrounding rock conditions of the roadway are ever-changing.What kind of support mode can ensure the safe use of the roadway and reduce costs,which has always been a major technical problem that plagues the majority of engineering and technical personnel.In the roadway rock mass supported by bolt mesh cable shotcrete,the injection of new geological polymer can improve the strength of the surrounding rock and ensure the stability of the roadway.