桩侧后压浆技术成功处理软土的工程实践

Engineering practice of improving soft soil by later grouting technique in bored piles

通过一个成功的钻孔后压浆桩工程实例,介绍了钻孔后压浆桩的优点、承载力计算方法和施工措施。桩基的静动载检测结果表明,施工中通过合理布置压浆管、控制压浆顺序和压浆量可使软弱土层得到较好的处理效果。本工程的成功经验可为类似工程提供有价值的参考。

Based on an engineering example of bored cast-in-place piles with later grouting,the advantages,the calculation method of bearing capacity and construction measures are introduced.The examination results of test piles prove that the soft subsoil can be improved successfully by installing the grouting pipes properly,controlling the sequence and the volume of grouting during construction.The successful experience of this project can provide valuable reference for similar projects.