深部开采巷道支护技术研究  

Research on Roadway Support Technology in Deep Mining

作　　者：马华成 MA Huacheng(CHN Energy Group Xinjiang Energy Co.,Ltd.,Urumqi Xinjiang 830000)

机构地区：[1]国家能源集团新疆能源有限责任公司,新疆乌鲁木齐830000

出　　处：《河南科技》2021年第12期65-67,共3页Henan Science and Technology

摘　　要：针对深部开采巷道围岩变形量大的问题,本研究将协调支护技术应用到围岩控制中,并依据+400 m B8掘进巷地质条件对巷道支护参数进行设计。现场应用取得较好的围岩控制效果。研究表明,协调支护技术以恒阻让压锚索为基础,对巷道围岩变形进行控制,充分发挥恒阻让压锚索支护能力,让压锚索巷随巷道围岩变形,同时与高强锚杆共同作用,给围岩提供较大的支护强度;在+400 m B8掘进巷巷帮增加锚索,提高巷帮支护强度来抵抗变形;运输巷顶板让压锚索、巷帮锚索与高强锚杆协同提升围岩强度。现场应用后,顶底板和两帮的变形量分别控制在72 mm、116 mm以内,应用效果显著。In view of the large deformation of the surrounding rock of the deep mining roadway,this study applies the coordinated support technology to the surrounding rock control,and designs the roadway support parameters according to the geological conditions of the+400 m B8 driving roadway.Field application has achieved better surrounding rock control effects.Research shows that the coordinated support technology is based on the constant-resistance letdown anchor cable to control the surrounding rock deformation of the roadway and give full play to the constant-resistance let-down anchor cable support ability,the anchor cable tunnel deforms with the surrounding rock of the roadway,and at the same time it works together with the high-strength bolt to provide greater support strength to the surrounding rock;anchor cables are added to the+400 m B8 tunnel side,so as to increase the support strength of the road side to resist deformation;the roof let-down anchor cable of the transport road,the roadside anchor cable and the high-strength anchor rod cooperate to enhance the strength of the surrounding rock.After the field application,the deformation of the top and bottom plates and the two sides are controlled within 72 mm and 116 mm,respectively,and the application effect is remarkable.

关 键 词：深部开采 恒阻让压锚索 高强锚杆 围岩支护 

分 类 号：TD353[矿业工程—矿井建设]