﻿ 挤扩支盘桩抗压承载力试验与分析

# 挤扩支盘桩抗压承载力试验与分析Experimental Investigation, Calculation and Analysis of Compressive Bearing Capacity of Squeezed Branch Piles

Abstract: Compared with ordinary straight piles, squeezed branch piles have advantages such as higher bearing capacity and lower settlement. The bearing mechanism of squeezed branch piles and five calculation formulas of compressive bearing capacity are discussed in this paper. Besides, the in- fluence of plate distance, plate number, plate position and plate diameter on compressive bearing capacity is analyzed. According to the static loading tests results of five piles of the first phase Ningbo City Eastern Expressway, under the same requirements for compressive bearing capacity, squeezed branch piles can save over 30% material more than ordinary straight piles. By using the results of the five calculation formulas of compressive bearing capacity and the measured data, the analysis is carried out.

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