An Empirical Method for Analysis of Load Transfer and Settlement of Single Piles |
| |
| Authors: | J R Omer R Delpak R B Robinson |
| |
| Institution: | (1) Faculty of Engineering, Kingston University, London, KT1 2EE, UK;(2) Faculty of Advanced Technology, University of Glamorgan, Wales, CF37 1DL, UK |
| |
| Abstract: | An empirical method is developed for estimating the load transfer and deformation of drilled, in situ formed piles subjected
to axial loading. Firstly, governing equations for soil–pile interaction are developed theoretically, taking into account
spatial variations in: (a) shaft resistance distribution and (b) ratio of load sharing between the shaft and base. Then generic
load transfer models are formulated based on examination of data from 10 instrumented test piles found in the literature.
The governing equations and load transfer models are then combined and appropriate boundary conditions defined. Using an incremental-iterative
algorithm whereby all the boundary conditions are satisfied simultaneously, a numerical scheme for solving the combined set
of equations is developed. The algorithm is then developed into an interactive computer program, which can be used to predict
the load-settlement and axial force distribution in piles. To demonstrate its validity, the program is used to analyse four
published case records of test piles, which other researchers had analysed using the following three computationally demanding
tools: (a) load transfer (t–z), (b) finite difference and (c) finite element methods. It is shown that the proposed method which is much less resource-intensive,
predicts both the load-settlement variation and axial force distribution more accurately than methods: (a–c) above. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
