CT探测技术在硬岩体爆破后强度弱化范围测试中的应用

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英文篇名：CT Detection Technology Applied to Measurement of Strength Weakening Scope After Hard Rock Blasted 中文刊名：煤炭工程 英文刊名：Coal Engineering 作者：付宝杰 ; 涂敏 英文作者：FU Bao-jie1 ; 2 ; TU Min1 ; 2 (1.School of Energy and Safety ; Anhui University of Science and Technology ; Huainan 232001 ; China ; 2.Provincial and MOE Joint Key Lab of Mine Safety and High Efficient Mining ; Anhui University of Science and Technology ; Huainan 232001 ; China) 中文关键词：CT探测 ; 深孔爆破 ; 硬岩体强度弱化对比分析 英文关键词：CT detection ; deep-hole blasting ; comparison analysis on strength weakening of hard rock 出版日期：2011-06-20 机构：安徽理工大学能源与安全学院;安徽理工大学煤矿安全高效开采省部共建教育部重点实验室; 年：2011 期：06 出版单位：煤炭工程

摘要

岩巷综掘遇到硬岩时,为了选择合理的松动爆破参数,使全断面硬岩体均能被顺利载割,文章基于地震波CT探测技术对深孔爆破后围岩表面强度弱化范围进行了测试,根据波速在不同介质中传播速度不同,通过爆破前后数据采样分析,得出了爆破后岩体表面强度弱化范围,据此,可采用该探测方法能对爆破参数设计起到较好的指导作用。
When the mine fully mechanized rock roadway heading was in hard rock,in order to select the rational releasing blasting parameters and to smoothly cut the full cross section of the hard rock,a test and measurement was conducted on the surface strength weakening scope of the surrounding rock after the deep hole blasting base on the seismic wave CT detection technology.According to the different spreading speed of the wave speed in the different medium,with the sampling and analysis on the data before and after the blasting,the surface strength weakening scope of the rock was obtained.Thus the application of the detection method could have good guidance to the design of the blasting parameters.

引文

[1]杨文采,李幼铭.应用地震层析成像[M].北京:地质出版社,1993.
    [2]刘盛东,李承华.地震走时层析成象算法与比较[J].中国矿业大学学报,2000,(2).
    [3]阎生存,李珍照,薛桂玉,等.大坝CT中ART算法及其改进探讨[J].武汉大学学报(工学版),2001,(8).
    [4]张平松,刘盛东.地震法CT技术探测煤层上覆岩层破坏规律[J].岩石力学与工程学报,2004,(15).