深井破碎软岩硐室联合加固技术研究  

Research and application of joint reinforcement of broken soft rock chambers in deep places of coal mine

作　　者：张占阳[1] 倪惠宁 ZHANG Zhan-yang;NI Hui-ning(No.9 Coal Mine of Hebi Coal Industry(Group)Co.,Ltd.,Hebi 458030,China;School of Mines,China University of Mining and Technology,Xuzhou 221116,China)

机构地区：[1]鹤壁煤业(集团)有限责任公司第九煤矿,河南鹤壁458030 [2]中国矿业大学矿业工程学院,江苏徐州221116

出　　处：《煤炭科技》2022年第5期54-57,共4页Coal Science & Technology Magazine

基　　金：国家自然科学基金面上项目(52174138)。

摘　　要：针对鹤壁九矿的地质构造背景及地应力分布规律,分析了造成巷道破坏变形的原因,采用围岩锚固加固技术,提高各部分岩体的内聚力和内摩擦角,同时封闭岩石内部裂缝,以防止岩体被水、风和其他物质侵蚀,改变岩体内部的松散结构,使破坏后的岩体重新胶结形成致密的岩体,提高了围岩整体强度,为树脂锚杆、锚索提供了坚固的锚固点,使主动支护的能力得到充分发挥。采用加固技术修复后,提高了中央泵房、变电所的围岩支护强度,巷道变形量大大减少。Aiming at the geological structure background and in-situ stress distribution law of Hebi Coalfield No.9 Coal Mine,the causes of roadway failure and deformation are scientifically analyzed.The surrounding rock anchoring and reinforcement technology improves the cohesion and internal friction angle of each part of the rock mass,and at the same time closes the cracks inside the rock to prevent the rock mass from being eroded by water,wind and other substances,and changes the loose structure inside the rock mass.The damaged rock mass is re-bonded to form a dense rock mass,which improves the overall strength of the surrounding rock,provides a firm anchor point for the resin bolt and anchor cable,and fully exerts the ability of active support.After repairing with reinforcement technology,the surrounding rock support strength of the central pump house and substation is improved,and the deformation of the roadway is greatly reduced.

关 键 词：锚注支护技术 深井破碎围岩 软岩巷道(硐室) 联合加固 

分 类 号：TD353[矿业工程—矿井建设]