PC工法桩围堰变形情况分析与稳定性控制

DEFORMATION ANALYSIS AND STABILITY CONTROL OF PC PILE COFFERDAM

以金鸡湖隧道为例,结合现场施工实际情况,对监测数据进行合理分析,并对围堰的稳定性提出有效控制对策,通过对监测目的和方法的阐述和分析,为下一步监测数据分析做了铺垫,在理论上确保了监测数据的准确性和高效性。根据选取的首开段变形监测点监测数据值进行分析,水平、竖直位移量均保持正常,远低于预警水准,处于安全可控状态。通过对围堰变形控制措施进行研究分析,进一步确保围堰整体的稳定性。

Taking Jinji lake tunnel as an example,in combination with the practical situation of site construction,reasonable analysis of monitoring data,and put forward effective control countermeasures to the stability of the cofferdam.Through the elaboration and analysis of the monitoring purpose and method,do set the stage for the monitoring data analysis,in theory,to ensure the accuracy and effectiveness of monitoring data.According to the selected monitoring data of the first opening deformation monitoring point,the horizontal and vertical displacements remain normal,far below the warning level,and are in a safe and controllable state.Through the research and analysis of the deformation control measures of cofferdam,the overall stability of cofferdam is further ensured.