高墩桥梁桩基础计算长度研究  

A Study on Calculating Length of Pile Foundation for High-Pier Bridge

作　　者：张哲[1] 李文武[1] 叶毅[1] 

机构地区：[1]大连理工大学桥梁工程研究所,大连市116023

出　　处：《公路》2011年第6期62-66,共5页Highway

基　　金：交通运输部西部交通建设科技项目;项目编号2009318223081

摘　　要：在桥梁工程中,墩、桩的计算长度问题一直是工程界没有定论的问题。以m法为基础,将桩的稳定分析与计算长度联系起来。通过欧拉公式,分析了桩径、埋深、土层抗力系数和墩高对摩擦桩计算长度的影响。结果表明,随着桩径、墩高的增加,摩擦桩计算长度增加;土层抗力系数对计算长度影响较小。最后给出了便于工程应用的摩擦桩计算长度系数表格。It is an uncertain problem that determining the effective length of piles in bridge construcion. Based on m-method, stability analysis is adopted to determine the calculating; length of piles.The influence of piles diameter, buried length of piles, resistance of soil on the side of piles and pier height to the calculating length of friction piles is studied by using Euler formula. The results present that the calculating length increase with the pile diameter and pier height increasing. The resistance of soil influence lightly to the calculating length of piles. In the end of this paper the calculating length factors of friction piles are tabled which is convenient to use in project practice.

关 键 词：高墩桥梁 摩擦桩 计算长度 M法 稳定分析 

分 类 号：U443.15[建筑科学—桥梁与隧道工程]