摘要
对滑坡发生进行监测和早期预报,是减少和防止滑坡灾害的重要手段。以平溪特大桥滑坡为工程背景展开滑坡监测,拟掌握抗滑桩施工过程中的地表位移、深部位移变形情况,确保施工安全,验证和确定滑动面的位置,为修改设计、指导施工提供依据,结果表明:1类似情况下,采用地表位移监测、深部位移监测、地下水位监测、降雨量观测、地表巡视可以较好掌握滑坡的变形信息,满足监测的要求。2监测前期、中期,滑坡始终处于蠕动变形阶段,是因为下部抗滑桩尚未施工完毕,坡体应力不断重新分布调整的结果,之后逐步稳定,从而验证了所采取的治理措施是必要的、有效的。
The landslide monitoring and early warning,is one of the important means to reduce and prevent the landslide disaster. With Pingtexi bridge as the engineering background of landslide,the monitoring work are done to grasp the construction process of the surface displacement and deep displacement deformation condition,to ensure the construction safety,and determine the sliding surface position,provide the basis for modifying design,directing construction. The results show that： ① for the similar cases,the surface displacement monitoring,deep displacement monitoring and underground water level monitoring,rainfall observation,the tour of the earth＇s surface can be better control of landslide deformation information,and meet the requirements of monitoring.② in the early and middle stage of monitoring,landslide are always in the creep deformation stage,which is due to the reason that the lower anti-slide pile is not finished and lead to the stress redistribution,then the slope becomes more stable,which verifies the governance measures are necessary and effective.
出处
《公路工程》
北大核心
2015年第2期226-230,243,共6页
Highway Engineering
关键词
滑坡
监测
抗滑桩
变形
参数识别
landslide
monitoring
pile
deformation
parameter recognization
