水库浸没对既有铁路稳定性影响研究

Research on the Impact of Reservoir Immersion on the Stability of Existing Railways

评价水库蓄水对既有铁路稳定性影响程度及范围具有重要的工程意义。以某水库浸没既有铁路路基和桥梁为工程背景,结合现场勘察资料,采用卡楚金法预测浸水断面坍岸宽度,利用GEO5软件计算浸水断面安全系数,分析水库蓄水后对既有铁路路基和桥梁的稳定性和安全性产生潜在危险的可能性,并针对蓄水后可能引起的安全性问题,对既有铁路及改线方案提出措施建议,保证既有铁路的安全运营。

It is of great engineering significance to evaluate the degree and range of reservoir impounding to the stability of existing railways.Taking existing railway subgrade and Bridge submerged in a reservoir as engineering background,this paper uses the Kachujin method to predict the width of bank collapse of the submerged section in combination with field investigation data,and calculates the safety factor of the submerged section by using GEO5 software.This paper analyses the possibility of potential danger to the stability and safety of existing railway subgrade and bridge after reservoir impounding,and puts forward measures and suggestions for existing railways and improvement schemes to ensure the safe operation of existing railways in view of the possible safety problems after reservoir impounding.