Quantification of reactivated landslide behaviour using acoustic emission monitoring
Quantification of reactivated landslide behaviour using acoustic emission monitoring
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DOI：
10.1007/s10346-014-0491-z
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发表时间：
2015-06-01
期刊：
影响因子：
6.7
通讯作者：
Haslam, E.
中科院分区：
文献类型：
--
作者：
Dixon, N.;Spriggs, M. P.;Haslam, E.
世界范围内的斜坡崩塌每年导致数千人死亡，并破坏已建成的环境基础设施，修复费用达数十亿英镑，导致数千人无家可归，供水和交通等基本服务中断。显然需要经济实惠的仪器来提供斜坡不稳定的早期预警，以便疏散弱势群体并及时修复和维护关键基础设施。本文描述了一种使用声学实时监测系统 (ALARMS) 评估山体滑坡的方法，并描述了在英国北约克郡 Hollin Hill 的活动山体滑坡上传感器现场试验的结果。对变形斜坡产生的声发射的连续实时监测与传统测斜仪斜坡位移测量进行了比较。结果分析表明，声发射率与降雨事件引发的位移率趋势之间存在直接关系。该技术提供了对重新激活的斜坡运动运动学的深入了解。
Slope failures world-wide cause many thousands of deaths each year and damage built environment infrastructure, costing billions of pounds to repair, resulting in thousands of people being made homeless and the breakdown of basic services such as water supply and transport. There is a clear need for affordable instrumentation that can provide an early warning of slope instability to enable the evacuation of vulnerable people and timely repair and maintenance of critical infrastructure. An approach, Assessment of Landslides using Acoustic Real-time Monitoring Systems (ALARMS) is described in the paper, and results of a field trial of sensors on an active landslide at Hollin Hill, North Yorkshire, UK, are described. Continuous and real-time monitoring of acoustic emission generated by the deforming slope has been compared to traditional inclinometer slope displacement measurements. Analysis of the results has established that there is a direct relationship between acoustic emission rate and displacement rate trends triggered by rainfall events. The technique has provided insight into reactivated slope movement kinematics.