支盘桩与等截面桩承载性能对比试验

Comparison experiment on the loading capacity of the branch pile and the pile with constant section

研究宁波绕城高速公路东段特有区域地质条件下挤扩支盘桩的承载性能，并在挤扩支盘桩的同一场地进行了等截面桩的对比试验，试验表明，支盘桩单方混凝土承载力可以提高30％-40％左右，支盘桩的支盘发挥的作用占总承载力的40％左右。

The author studies the loading capacity of squeezed branch pile under the special area geological condition of eastern section on wind city highway in Ningbo, and gets comparison experiment of the pile with constant section in the same file with squeezed branch pile. Experiment proves that the unilateral concrete loading capacity of the branch pile can improve about 30% to 40%, and the effect played by the ,squeezed branch of the branch pile occupies about 40 % of the total loading capacity.