云南冶金2025,Vol.54Issue(3):32-39,8.
基于声波测试的边坡岩体扰动范围及扰动系数确定
Determination of Disturbance Range and Disturbance Coefficient of Slope Rock Mass Based on Acoustic Wave Testing
摘要
Abstract
To investigate the disturbance degree of blasting excavation and unloading on the slope rock mass of a mine stope,field acoustic wave tests were conducted on key rock masses-dacite and rhyolite-at the 1160 platform of the northern slope and the 1195 platform of the western slope.The disturbance range was determined to be 8.4 m for the dacite at the 1160 platform of the northern slope and 6.2 m for the rhyolite at the 1195 platform of the western slope.Based on the disturbance coefficient(D)determination method derived by Sun Jinshan et al.,the disturbance coefficients were calculated as D=0.85 for the dacite at the 1160 platform and D=0.82 for the rhyolite at the 1195 platform.The results are consistent with Hoek's recommended values,confirming the feasibility of Sun Jinshan et al.'s method for determining D.This research provides a practical basis for selecting parameters in slope stability analysis of mining operations,offering significant real-world applicability.关键词
爆破开挖/卸荷/声波测试/扰动系数Key words
blasting excavation/unloading/sound wave test/disturbance coefficient分类
矿业与冶金引用本文复制引用
陈青..基于声波测试的边坡岩体扰动范围及扰动系数确定[J].云南冶金,2025,54(3):32-39,8.基金项目
云南省基础研究专项面上项目"深部高应力节理岩体巷道垮冒机制及靶向支护技术研究"(202501CF070050) (202501CF070050)