华亭矿区高应力三软巷道锚注止裂机理分析及分级协同控制技术研究  

Mechanism of anchor injection and crack prevention in high stress three soft roadway and its hierarchical collaborative control technology in Huating mining area

作　　者：甄文 邓韦彬 ZHEN Wen;DENG Weibin(Pingliang Wuju Coal Industry Co.,Ltd.,Pingliang 744203,China;Shandong Fangda Engineering Co.,Ltd.,Zibo 255120,China)

机构地区：[1]平凉五举煤业有限公司,甘肃平凉744203 [2]山东方大工程有限责任公司,山东淄博255120

出　　处：《陕西煤炭》2025年第4期77-83,共7页Shaanxi Coal

摘　　要：华亭矿区是中国14个主要煤炭生产基地之一,年产煤炭超过6000万t。矿区煤层埋藏深度普遍超过800 m,顶板主要为泥质岩体,胶结性差且围岩强度低。同时,矿井地下水矿化度极高,平均值为11231 mg/L,导致金属锚杆索严重应力腐蚀。巷道变形速度快,顶板易失稳垮冒,巷修率高,严重影响矿井的安全高效生产和产能释放。本研究以华亭矿区某矿开拓巷道工程为背景,针对华亭矿区顶板稳定性和围岩大变形控制技术问题,提出了高应力三软巷道分级协同控制技术和支护方案。工业性试验的矿压监测数据显示,新支护方案下巷道顶底变形量减少了76.32%,两帮变形量减少了66.55%。该技术有效遏制了高应力三软巷道高返修率的现象,相关设计理念可为华亭矿区高应力三软巷道围岩控制技术提供重要参考。Huating Mining Area is one of the 14 major coal production bases in China,with an annual coal output exceeding 60 million tons.The coal seams in the mining area are generally buried at depths of over 800 meters,with the roof mainly consisting of argillaceous rock,characterized by poor cementation and low surrounding rock strength.Additionally,the underground water in the mine has a very high mineralization degree,averaging 11231 mg/L,leading to severe stress corrosion on metal anchor cables.The rapid deformation of the roadway and the instability and collapse of the roof,coupled with a high repair rate,severely impact the safe and efficient production and capacity release of the mine.Based on a development roadway project in a certain mine within the Huating Mining Area,we address the issues of roof stability and large deformation control of surrounding rock,and propose a graded collaborative control technology and support scheme for high-stress soft roadways.Industrial-scale test monitoring data of mine pressure show that,under the new support scheme,the deformation of the roadway roof and floor was reduced by 76.32%,and the deformation of the two sides was reduced by 66.55%.This technology effectively curtails the high repair rate of high-stress soft roadways,and the related design concepts can provide significant references for the control technology of surrounding rock in high-stress soft roadways in the Huating mining Area.

关 键 词：三软巷道 围岩变形 锚注止裂 分级协同 

分 类 号：TD353[矿业工程—矿井建设]