挤扩砂砾石灌浆桩加固大圆筒地基的工程实践

An Engineering Case of Squeezed Sand-Gravel Column and Sleeve Grouting with Valve for Large Cylinder Foundation

采用砂砾石桩和袖阀灌浆形成复合桩体来加固含有淤泥的圆筒地基,这—方法被实践证明是可行的。加固体的检测结果表明,其强度达到了设计强度的2倍。

It is proved applicable to adopt squeezed sand-gravel column and sleeve grouting with valve to improve the interlayer under the large cylinder foundation. The test results showed that the strength of the suggested pile was twice that of the design one.