韩城电厂滑坡深部监测及变形分析

Deep ground monitoring and deformation analysis of Hancheng Power Plant landslide

韩城电厂滑坡于1990年和1995年先后经过了两次治理。为了检验综合治理效果,观测山体变形滑移、厂区变形活动规律,于1996年底建立了滑坡深部变形监测体系,采用激光准直系统、三向测缝计、钻孔测斜仪等多种方法对韩城电场滑坡进行了长期的深部变形监测,获得了滑坡多年的深部位移数据。监测成果表明:滑坡存在指向SW的蠕滑变形,但各监测点位移变化处于较低水平,山体和厂区无明显的异常变形现象。滑坡综合治理效果明显,保证了电厂的安全运营。

Twice treatment and control were carried out for Hancheng Power Plant landslide in 1990 and 1995.Landslide deep deformation monitoring system was established at the end of 1996 in order to observe the deformation law of landslide and test the effect of landslide comprehensive control.Long-term of landslide deep displacement data were obtained through deep deformation monitoring system which is composed by laser alignment system,three-way joint meter and borehole inclinometer.The monitoring results reveal that,creep deformation that points to the direction SW is developed in landslide all the time.However,the average displacement rate of each monitoring point is at a low level and there is no obvious abnormal deformation in the landslide.The effect of landslide control is remarkable.It can guarantee the safe operation of the power plant.