挤扩支盘灌注桩的试验研究

Experimental Research of Cast-in-place Pile with Branches and Plates

介绍了挤扩多支盘灌注桩在浙江杭州首次应用的工程实例 ,对该桩目前常用的承载力计算的各种取值方法进行了对比分析 ,并与现场静载荷试验结果进行了比较。与普通灌注桩相比 ,其单桩承载力提高 6 0 %以上 ,单方混凝土承载力提高 1倍以上。

On the basis of testing data,the bearing capacity of extruding expanding multi brace disk pile is studied.The conclusion shows that the bearing capacity of the multi brace disk pile is about 1.6 times larger than general pile,and the result of bearing capacity of Tangs calculating method is close to that of loading test.