右岸坝顶以下边坡施工期安全监测成果浅析

Preliminary analysis on safety monitoring result of slope below dam crest on right bank in construction period of Dagangshan Hydropower Station

大岗山水电站右岸坝顶以下边坡局部存在潜在不稳定块体,对施工期安全构成了威胁。根据关键块体的构成,制定并实施了边坡安全监测方案。主要监测内容为位移变形、应力变化和外观变化。监测成果反映了开挖施工对边坡稳定的影响,确定了不稳定块体,为采取安全加固措施提供了科学的基础资料,保障了开挖施工的安全进行。

Local potential unstable blocks existed in the slope below dam crest on the right bank of Dagangshan Hydropower Station,which threatened the construction safety.In the light of composition of key blocks,the safety monitoring scheme for the slope was worked out and implemented.The main monitoring contents included deformation and stress variation.The monitoring results reflected the influence of slope excavation on the slope stability,providing scientific basic data for overall reinforcement and guaranteeing the safety of the excavation construction.