钢板桩拔除施工方案探讨

Discussion on Steel Sheet Pile Pulling out Construction Scheme

在紧邻河道原有驳岸挡土墙等建构筑物附近拔除钢板桩时,拔桩前应做好验算复核,必要时在钢板桩四周预先堆放砂袋,确保附近构筑物地基的稳定性;钢板桩的拔除阻力要大于打入阻力,拔桩力的精确求解困难,拔桩阻力包括钢板桩与土的吸附力及钢板桩断面与土侧面阻力;应根据地质条件、场地情况和当地工程经验选择拔桩设备,可以通过计算拔桩阻力选择拔桩设备的规格型号。

When the steel sheet pile is pulled out near the original revetment retaining wall and other structures close to the river,check and recheck before pulling out the pile.If necessary,sand bags should be stacked around the steel sheet pile in advance to ensure the stability of the foundation of the nearby structures.The pull-out resistance of the steel sheet pile is greater than the driving resistance,so it is difficult to accurately solve the pulling force.The pile pulling resistance includes the adsorption force between the steel sheet pile and soil and the section and soil of the steel sheet pile side resistance:the pile pulling equipment should be selected according to the geological conditions,site conditions and local engineering experience,and the specification and model of the pile pulling equipment can be selected by calculating the pile pulling resistance.