变荷载影响下高边坡岩体安全监测分析  

Monitoring and analysis of the safety of high slope rock under variable loading

作　　者：袁前胜[1] 

机构地区：[1]西昌学院工程技术学院,四川西昌615013

出　　处：《合肥工业大学学报（自然科学版）》2015年第3期373-376,共4页Journal of Hefei University of Technology：Natural Science

基　　金：四川省教育厅科研基金重点资助项目(11ZA143);西昌学院2012研究生资助项目(13SQZ23)

摘　　要：水利工程施工受地形影响在高边坡上布置拌合系统已为常态,料仓加载运行会影响边坡岩体稳定,危及工程安全。文章以某二级电站工程为例,通过对比岩体变形监测和锚索应力监测研究料仓正常使用和加速运行2种情况下对高边坡岩体的影响。研究结果表明,锚索在边坡稳定中作用明显,料仓进出料频率增加对料仓范围内岩体影响较小,而对皮带支撑桩的岩体影响明显并有变形增大的趋势。通过监测分析可得出料仓加载过程中岩体的变形情况,为其治理提供依据。It is normal that setting the mixing system on the high slope in hydraulic engineering construction because of the landform,the hopper would affect the rock and endanger the safety of the engineering when it is running.Taking a secondary power station project as an example,the safety of the high slope under regular service and accelerated service of the hopper is analyzed by the monitoring of rock deformation and anchor stress.The results show that anchor plays a possibly significant role in the slope stability,and the feeding and discharging rate of the hopper has little effect on the rock in the range of hopper,but it evidently affects the rock nearby belt conveyer foundation and the deformation is increasing.The deformation of rock during the hopper loading process can be obtained according to the monitoring analysis,thus providing an experimental basis for its treatment.

关 键 词：高边坡 荷载 稳定性 安全监测 

分 类 号：TU457[建筑科学—岩土工程]