IMS微震监测技术在边坡中的应用研究  

Study on the application of IMS microseismic monitoring technology in the slope

作　　者：文排科 左宇军[1,2,3,4] 唐波[1,2] 潘超[1,2] 

机构地区：[1]贵州大学矿业学院,贵州贵阳550025 [2]贵州省非金属矿产资源综合利用重点实验室,贵州贵阳550025 [3]贵州省优势矿产资源高效利用工程实验室,贵州贵阳550025 [4]复杂地质矿山开采安全技术工程中心,贵州贵阳550025

出　　处：《化工矿物与加工》2014年第12期42-46,共5页Industrial Minerals & Processing

基　　金：国家科技支撑计划(No.2012BAB08B06);贵州省自然科学研究重点项目(黔教科2010003);贵州省优秀科技教育人才省长资金项目(黔省专合字(2011)36号);贵州省高层次人才科研条件特助经费项目(TZJF-2010年-044号);贵州大学研究生创新基金项目(研理工2014071)

摘　　要：为研究贵州某高陡公路岩质边坡在开挖期间受周围爆破震动影响下的内部损伤程度,在介绍微震监测原理及IMS监测技术的基础上,通过微震监测仪器空间优化布置与安装、爆破测试岩体波速等建立了边坡微震监测系统。监测结果表明,爆破震动诱发了边坡1272~1309m高程大量微震事件,且沿边坡内部呈长条带丛状分布,微震事件分布特征能较好反映出现场施工情况,IMS微震监测技术能初步给出需要密切监测关注和加固的范围。The paper introduces the principle of microseismic monitoring and IMS monitoring technology to study the internal damage to a high and steep rock slope of roads in Guizbou under the influence of the blasting vibration during the excavation. A slope microseismic monitoring system is established by the spatial optimization of mieroseismic monitoring instrument layout and in- stallation and measurement by blasting wave velocity of rock mass. Monitoring results show that the blasting vibration induced a large number of seismic events which appears strip belt distribu- tion along the internal slope by the slope 1272 m in elevation （pavement） to 1309 m elevation level. Characteristics of seismic e vent distribution can well reflect the slope construction situations. IMS microseismic monitoring technology can preliminarily give the range to be subject to close monitoring and reinforcement.

关 键 词：爆破震动 微震 IMS 岩质边坡 

分 类 号：TD325.4[矿业工程—矿井建设]