关于河口渡槽水泥粉煤灰碎石桩(CFG)复合地基承载力检测方法和检测结果分析

Methods to Detect the Bearing Capacity of Composite CFG Pile Foundation of Hekou Aqueduct and Analysis on Detection Results

河口渡槽排架位于河槽中,4号~14号排架地基承载力不满足设计要求,排架基础处理采用水泥粉煤灰碎石桩(CFG)复合地基,处理后的复合地基承载力要求不小于120 kPa,采用慢速维持荷载法和反射波法对成桩进行了检测,进行了数据分析。

The Hekou Aqueduct's bents are located in the river channel. The foundation bearing capacity of NO. 4-14 bents of this aqueduct can not meet the design requirement, and so the composite CFG pile foundation is used to treat the bents' foundation. The foundation bearing capacity after treating must be not less than 120 kPa. The slow sustaining load method and the reflected wave method are used for the detection of piles and the detection results are analyzed in the paper.