密云水库西石骆驼副坝变形资料分析

Analysis of deformation data of Xishiluotuo Auxiliary Dam ofMiyun Reservoir

西石骆驼副坝是密云水库的挡水建筑物之一,工程安全至关重要。为确保土坝安全运行,对60年变形资料进行分析。通过过程线分析、相关分析、对比分析、库水位影响分析,发现2005年水平位移重启系列欠妥。北垭口变形主要表现为水平位移,并导致纵向裂缝和坝坡滑移。因此,仅仅依靠翻坡不能解决实质性问题。此分析结果对发现工程缺陷并采取有效工程措施,把事故消灭在萌芽状态,从而确保工程安全运用具有重要意义。

The Xishiluotuo Auxiliary Dam is one of the water-retaining structures of the Miyun Reservoir,and its safety is of paramount importance.To ensure the safe operation of the earth dam,a 60-year deformation data analysis was conducted.Through process line analysis,correlation analysis,comparative analysis,and analysis of the impact of reservoir water levels,it was found that the 2005 horizontal displacement series was improperly restarted.The deformation of the Beiyakou primarily manifested as horizontal displacement,leading to longitudinal cracks and dam slope slippage.Therefore,relying solely on slope-flipping cannot resolve the substantive issues.The results of this analysis are significant for identifying engineering defects and taking effective measures to eliminate potential accidents in their early stages,thereby ensuring the safe operation of the project.