云盖山一矿穿多层倾斜软岩巷道锚注支护技术应用研究

TD713; 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...

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Published in河南理工大学学报（自然科学版） Vol. 41; no. 3; pp. 22 - 31
Main Authors 陈召, 李小军, 张盛, 朱磊, 赵龙刚, 王辉, 王炎棕
Format Journal Article
LanguageChinese
Published 河南理工大学能源科学与工程学院,河南焦作454000%河南永锦能源有限公司,河南禹州461670 01.05.2022
Subjects
非对称变形
注浆
穿多层软岩巷道
锚注支护
层理
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Abstract TD713; 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.
AbstractList TD713; 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.
Author 张盛
赵龙刚
王辉
李小军
朱磊
陈召
王炎棕
AuthorAffiliation 河南理工大学能源科学与工程学院,河南焦作454000%河南永锦能源有限公司,河南禹州461670
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Author_FL LI Xiaojun
WANG Hui
ZHANG Sheng
ZHU Lei
CHEN Zhao
ZHAO Longgang
WANG Yanzong
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注浆
穿多层软岩巷道
锚注支护
层理
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Title 云盖山一矿穿多层倾斜软岩巷道锚注支护技术应用研究
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