山区公路高边坡微震监测与稳定性应用研究

摘要

山区公路高边坡的稳定是公路建设和运营过程中必须重视的重大问题,而有效监测是保证高边坡稳定的重要技术手段.依托实际工程详细介绍微震监测技术基本原理、微震监测系统以及现场监测方案等内容,运用微震监测系统对边坡开挖过程中的微震活动性进行实时监测,研究微震事件随着边坡开挖在时空上的分布规律,实现对边坡开挖过程的有效监控.并对土质边坡和土石过渡部位增加传统测斜监测技术,与微震监测数据相互补充分析.研究结果表明:微震监测技术可以对山区公路高边坡失稳进行有效预测和监控,为山区公路高边坡后期安全开挖和加固提供科学依据.%The stability of high slope in mountain highway is an important problem that must be paid attention to during the process of highway construction and operation,and effective monitoring is an important technique to ensure the stability of high slope.In this paper,based on the actual engineering,introduces the basic principle of the micro seismic monitoring technique,the components and structure of the ISS micro seismic monitoring system and Site monitoring point layout used high slope of highway,using micro seismic monitoring system for real-time monitoring of the seismic activity in the process of slope excavation,with the distribution of micro seismic events of slope excavation in space and time to achieve effective monitoring of slope excavation.The traditional slope monitoring technique is added to the soil slope and the transition zone of rock and soil,and the micro seismic monitoring data are supplemented and analyzed.The practice proves that the micro seismic monitoring technique is an effective method to study the rule of slope instability.The result settles an important base for high rock slope stability to produce safely periods.