Study on the Influence of Radial Pressurization on Anchoring Performance of Bolts
Study on the Influence of Radial Pressurization on Anchoring Performance of Bolts作者机构：School of Energy Science and Engineering Henan Polytechnic University Jiaozuo China
出 版 物：《World Journal of Engineering and Technology》 (世界工程和技术（英文）)
年 卷 期：2023年第11卷第4期
页 面：732-744页
学科分类：081901[工学-采矿工程] 0819[工学-矿业工程] 08[工学]
主 题：Anchors Pressure Dispersion Axial Forces Anchoring Effect
摘 要：Supporting soft rock roadways in coal mines has long posed a formidable challenge. Addressing issues such as the formation of soft rock strata, poor fracture development, limited tolerance, and the frequent and severe damage sustained by conventional bolts due to their low elongation and bearing capacity, this study employs bottom expansion and filling technology. It combines theoretical analysis with booster bolt pull-out tests to scrutinize the radial stress distribution of bolts under extrusion forces. Moreover, it conducts a comparative analysis of bolt bearing characteristics under varying radial pressurization conditions, delving into the impact of radial directional increases in compressive stress on bolt anchoring performance.
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