建筑边坡地表位移监测及稳定性分析

Monitoring and Analysis of a Building Slope

为研究建筑边坡在支护后坡体的地表位移变形及其稳定性,以贵州某建筑边坡为例,结合该边坡的地质勘察资料,在2018年5月~2019年2月监测期内对边坡进行实时监测,通过监测数据分析了建筑边坡的地表位移变化规律及其稳定性。结果表明:①该边坡的地表位移随监测时间的推移呈先先平稳变化后急剧变化,最后趋于平稳变化。在2018年5月~2018年9月监测期内位移增长最明显,最大累积变形达到为971.8 mm;②边坡出现了局部位移变化,存在贯通张拉裂缝,且边坡变形进行强化阶段,稳定性较差;③通过监测结果看,边坡存在滑坡灾害隐患,建议重新对边坡采取综合评价,制定综合治理措施,同时加强对危险点的观察。

To study the post construction stability and the deformation of a reinforced building slope,this paper presents a history of the surface deformation monitoring of a building slope in Guizhou.By using the site investigation data,the surface movement of the building slope was monitored,and the stability of the slope was analyzed from May of 1028 to February 2019.The results indicate that,①within the monitoring period,the slope movement has a trend of stabilized,rapid and then stabilized movement.The most rapid movement was observed in the period between May and September 2018 with a largest movement of 971.8 mm.②Localized movement and tension crack throughout the entire slope at the top.The global stability of the slope is relatively questionable.③the slope monitoring data indicate that a slope stability hazard is existed in this building slope and the in-depth stability evaluation of this building slope is suggested so that a comprehensive mitigation plan can be implemented.Continued movement monitoring of the slope is also suggested.