基桩水平承载力检测新技术

NEW TECHNOLOGY FOR TESTING HORIZONTAL BEARING CAPACITY OF PILE FOUNDATION

提出一种新的基桩水平承载力检测方法--半桩对顶法,原理是沿竖向将桩分成两半,在两半桩顶部布置水平荷载加载装置,水平加载装置加载时,两半桩分开,分别向两边土体倾斜变形,模拟原有单桩水平静载试验。半桩对顶法无需另设反力装置,试验材料用量也相对减少,试验方便,成本低,有利于提高基桩水平静载试验效率。

A new method for measuring horizontal bearing capacity of pile foundation,the half-pile to the top method,is proposed.The principle is to divide the pile into two halves vertically,and place a horizontal loading device on the top of the two halves.When the device is loaded,the two halves of pile are separated and inclined to the soil on both sides respectively,simulating the original single pile horizontal static load test.Half pile to top method does not need to set up another counterforce device,the test material consumption is relatively reduced,and the test is convenient,low cost and is conducive to improve the horizontal static load test efficiency of foundation pile.