基于声发射与微震技术的新型岩体稳定性监测系统及应用
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摘要
岩体在受力破坏过程中,会产生声发射与微震现象。通过监测获取岩体声发射与微震信号,并对其特征进行分析,可以判断岩体的稳定状况。本文介绍了新开发的岩体声发射监测系统的组成、功能以及现场应用情况,并结合现场监测数据,对岩体破坏过程中声发射与微震信号特征和事件频度变化特征进行了分析和探讨。
The phenomena of acoustic-emission and microseism will occur while rockmass is fractured under pressure.The stability of rockmass can be estimated through analysing the characteristics of acoustic-emission and microseism(AE-MS)signal gotten by monitoring.The composing,function and application of the system for monitoring the stability of rockmass based on AE-MS technology are introduced in this paper.According to the field monitoring data,the characteristics of AE-MS signal and variation of event frequency are analysed and discusssed.
The phenomena of acoustic-emission and microseism will occur while rockmass is fractured under pressure.The stability of rockmass can be estimated through analysing the characteristics of acoustic-emission and microseism(AE-MS)signal gotten by monitoring.The composing,function and application of the system for monitoring the stability of rockmass based on AE-MS technology are introduced in this paper.According to the field monitoring data,the characteristics of AE-MS signal and variation of event frequency are analysed and discusssed.
引文
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[2]程久龙,于师建,王渭明,等.岩体测试与探测[M].北京:地震出版社,2000:127-128.
[3]王焕义.岩体微震事件的精确定位研究[J].工程爆破,2001,7(3):5-8.
[4]李朝青.PC机及单片机数据通信技术[M].北京:北京航空航天大学出版社,2000:103-114.
[5]蒋海昆,张流.岩石微破裂震源过程的声发射研究进展[J].世界地震译丛,1998(3):3-9.
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