山东煤炭科技2025，Vol.43Issue(1)：22-26,31,6.DOI:10.3969/j.issn.1005-2801.2025.01.005
膨胀性黏土层巷道高强锚注加固应用研究
Application Research on High-Strength Anchor Injection Reinforcement of Expansive Clay Layer Roadway
李建建 1李力 2段双成2
作者信息
- 1. 山东安科矿山支护技术有限公司,山东 济南 250033
- 2. 国能宁夏煤业红石湾煤矿有限公司,宁夏 银川 751400
- 折叠
摘要
Abstract
In response to the stability control problem of the soft rock roadway in the high expansion clay section of the 1#auxiliary inclined shaft of Hongshiwan Coal Mine,through the theory of high-strength anchor injection support technology,research methods such as on-site investigation and analysis,numerical simulation,engineering testing and others are adopted to analyze the failure characteristics of soft rock and the instability mechanism of the support structure in the high expansion clay section.A prestressed high-strength anchor injection support scheme is proposed,which uses high-strength,high viscosity,mud loving grouting anchoring materials and large-diameter grouting anchor rods(anchor cables)to full cross section enclose the surrounding rock body.The focus is on strengthening the strength and range of the bottom side support,eliminating the weak points of the floor support,improving the strength of the protection surface,forming a full cross section anchor injection support carrier ring,and increasing the stability and integrity of the surrounding rock-support body.The on-site applications show that prestressed high-strength anchor injection support strengthens the overall connection between the support body and the surrounding rock body,improves the initiative and bearing strength of roadway support,achieves collaborative coupling of the support-surrounding rock system in terms of support strength and stiffness,effectively controls large deformation of surrounding rock,and ensures long-term stability of the roadway.关键词
高膨胀/巷道/锚注/支护Key words
high expansion/roadway/anchor injection/support分类
矿业与冶金引用本文复制引用
李建建,李力,段双成..膨胀性黏土层巷道高强锚注加固应用研究[J].山东煤炭科技,2025,43(1):22-26,31,6.
