回采巷道掘进过断层影响区全锚索支护技术研究  

Full Anchor Cable Support Technology for Excavating through Fault Affected Areas in Mining Roadways

作　　者：张鑫 ZHANG Xin(Xuangang Coal Electricity Co.,Ltd.,Jinneng Holding Coal Industry Group,Xinzhou 034114,Shanxi,China)

机构地区：[1]晋能控股煤业集团轩岗煤电有限责任公司,山西忻州034114

出　　处：《能源与节能》2025年第4期141-143,共3页Energy and Energy Conservation

摘　　要：为确保断层影响区回采巷道围岩稳定,以山西省A矿2201回风巷为研究对象,在分析DF_(34)断层影响区地质条件及原锚网索支护围岩变形特征的基础上,提出采用全锚索支护技术控制围岩变形并进行工程应用。在断层影响区顶板采用全锚索支护后,可利用锚索预紧力高、支护强度大的优点,将顶板破碎岩体挤压成承载能力强的结构单位,从而控制顶板变形。现场应用后,2201回风巷围岩变形严重、锚杆失效问题得以较好地解决,巷道断面收缩率较小,表明现场采用的全锚索支护技术可满足断层影响区围岩控制需要,为后续巷道使用创造了良好的条件。To ensure the stability of the surrounding rock in the mining roadway affected by the fault,taking the 2201 air return roadway of A Mine in Shanxi Province as the research object,based on the analysis of the geological conditions of the DF_(34) fault affected area and the deformation characteristics of the original anchor net cable support surrounding rock,it was proposed to use full anchor cable support technology to control the deformation of the surrounding rock and carry out engineering applications.After adopting full anchor cable support for the roof in the fault affected area,the advantages of high pre-tensioning force and strong support strength of the anchor cable can be utilized to compress the fractured rock mass of the roof into a structural unit with strong bearing capacity,thereby controlling the deformation of the roof.After on-site application,the severe deformation of the surrounding rock and the failure of anchor rods in the 2201 return air roadway were well solved,the shrinkage rate of the roadway section was relatively small,indicating that the fully anchored support technology used on site can meet the needs of controlling the surrounding rock in the fault affected area,creating good conditions for the subsequent use of the roadway.

关 键 词：巷道掘进 断层构造 全锚索支护 破碎顶板 

分 类 号：TD353[矿业工程—矿井建设]