陈召, 李小军, 张盛,等.云盖山一矿穿多层倾斜软岩巷道锚注支护技术应用研究[J].河南理工大学学报（自然科学版）,2022,41(3):22-31.

CHEN Z, LI X J, ZHANG S,et al.Application study on bolt-grouting support technology of soft rock roadway crossing multi-layer in No.1 mine of Yungaishan[J].Journal of Henan Polytechnic University(Natural Science) ,2022,41(3):22-31.

云盖山一矿穿多层倾斜软岩巷道锚注支护技术应用研究

陈召1, 李小军1, 张盛1, 朱磊1, 赵龙刚2, 王辉2, 王炎棕2

1.河南理工大学 能源科学与工程学院，河南 焦作454000，河南禹州 461670;2.河南永锦能源有限公司，河南 禹州 461670

摘要:针对云盖山一矿巷道掘进过程中穿多层倾斜软岩难以支护的问题，深入开展围岩结构观察和 岩性分析，并用数值模拟方法分析巷道非对称变形的原因，提出巷道非均匀变形控制思路与支护方 案，采用锚注支护控制巷道的非对称变形，结果表明：穿层软岩巷道两帮浅、中、深部破碎范围分布不均匀，顶底板呈现非对称变形破坏特征，浆液扩散差异化显著，与层理、节理的不均匀分布密切相关；采取中空锚杆索浅深部和高低压相结合的注浆方式，对破碎岩体节理和岩层层理进行胶结，高强度锚网索将胶结后的节理和层理进一步进行挤压加固，设计“三次喷浆＋高强锚网索＋中空注浆锚杆索＋底板硬化”全断面联合支护方案，在现场得到成功应用，可为类似穿层软岩巷道的控制提供参考。

关键词:穿多层软岩巷道;非对称变形;注浆;锚注支护;层理

doi:10.16186/j.cnki.1673-9787.2020080006

基金项目:国家自然科学基金资助项目（51674101 ）；河南省重点实验室开放基金资助项目（S201605）

收稿日期:2020/08/01

修回日期:2020/09/23

出版日期:2022/05/15

 Application study on bolt-grouting support technology of soft rock roadway crossing multi-layer in No.1 mine of Yungaishan

CHEN Zhao1, LI Xiaojun1, ZHANG Sheng1, ZHU Lei1, ZHAO Longgang2, WANG Hui2, WANG Yanzong2

1.School of Energy and Engineering， Henan Polytechnic University， Jiaozuo 454000 ， Henan， China;2.Henan Yongjin Energy Co.， Ltd. ， Yuzhou  461670 ， Henan， China

Abstract:According to the characteristics of the roadway in No. 1 mine of Yungaishan，which is the multi-layer inclined soft rock strata in the driving process ,based on the observation of the structural properties and the li- thology analysis of surrounding rock ,combined with the numerical simulation method,the causes of asymmetric deformation of roadway were analyzed. And the idea and scheme of roadway non-uniform deformation control were put forward. The asymmetric deformation control of roadway was carried out by bolt-grouting support. The results showed that the distribution of the shallow , medium and deep fracture range of the two sides of the road- way was uneven, the roof and floor presented the characteristics of asymmetric deformation and failure, The slurry diffusion also presented the characteristics of significant difference , which was closely related to the uneven distribution of bedding and joints. The joint and bedding of fractured rock mass were cemented by the grou- ting method of combining the shallow and deep part of hollow anchor cable and high and low pressure , and the high-strength anchor mesh cable further compressed and strengthened the cemented bedding and joints. A full section support method combined support parameters of“ three times shotcreting + high-strength anchor mesh cable + hollow grouting anchor cable +floor hardening"had been designed. which had been successfully ap- plied in the field. It provided reference value to control the similar soft rock roadway crossing multi-layer.

Key words:soft rock roadway crossing multi-layer;asymmetrical deformation;grouting;bolt-grouting support;bedding

云盖山一矿穿多层倾斜软岩巷道锚注支护技术应用研究_陈召.pdf