Determination of Bearing Capacity for Piles with CASE Method

Wang Wulin

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Determination of Bearing Capacity for Piles with CASE Method

更新时间：2026-06-25

- Determination of Bearing Capacity for Piles with CASE Method
- Vol. 9, Issue 2, (1988)
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- Online First：23 July 2017，
  
  Published：1988
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Wang Wulin. Determination of Bearing Capacity for Piles with CASE Method[J]. 1988, 9(2).
DOI：

Wang Wulin. Determination of Bearing Capacity for Piles with CASE Method[J]. 1988, 9(2). DOI：

摘要

本文介绍了用测量大锤撞击作用下的力和加速度以确定桩的静态轴向承载力的凯司(CASE)法。介绍了推导计算桩贯入阻抗力的基本方程

并给出了现场测量的例子。要有效地使用这种方法

就要将其测得的承载力与静力法测得的桩承载力对比来确定“阻尼”常数

或通过改变锤重和落距使V_b。趋近零

获得桩的静承载力

并求得“阻尼”常数。

Abstract

A method named CASE method is presented for determining the statically axial bearing capacity of piles from dynamic measurements of force and acceleration performed under the impact of a large hammer. The basic equation for calculating resistance against pile penetration is derived. The examples of field measurements are given. In order to use CASE method effectively

it is necessary to determine “damping ”constant by comparison the pile bearing capacity from static method with that from CASE method

or by changing hammer weight or dropping height to cause the Vb to close on zero and to obtain the static bearing capacity of pile.

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