大宁调蓄水库安全监测成果分析

Analysis on safety monitoring results in Daning Reservoir

安全监测是保障水库安全运行的重要手段。通过分析监测结果,能够及时掌握水库建筑物的运行状态,发现威胁水库运行安全的风险。本文以大宁调蓄水库为例,对水库防渗墙、主副坝、泄洪闸、稻田水库进水闸等重点部位进行监测。监测结果表明:蓄水期间水库安全监测数据稳定,沉降、变形等指标均在正常范围内;水库水位变化对水库周边地下水位影响不显著,说明防渗墙防渗效果明显。安全监测为大宁调蓄水库的安全运行提供了有力技术保障。

Safety monitoring is an important means to ensure the safe operation of reservoirs.The operation state of the reservoir buildings can be grasped in time by analyzing the monitoring results,and the risks threatening the operation safety of the reservoir can be found out in time.Daning Reservoir is adopted as an example to monitor the key parts of the reservoir cutoff wall,the main and secondary dam,the spillway gate and the entrance gate of the paddy field reservoir,etc.in the paper.The monitoring results show that the safety monitoring data are stable,settlement and deformation indexes are within the normal range during storage period.The change of water level in the reservoir has no significant effect on the groundwater level around the reservoir.Safety monitoring provides strong technical guarantee for the safe operation of Daning Reservoir.