文献类型：期刊文献

中文题名：水平布置的先行顶管对后续顶管顶推力的影响分析

英文题名：Influence analysis of horizontally arranged advance pipes on jacking force of subsequent pipes

作者：张宇[1];陶连金[1];赵旭[1];董立朋[2];边金[3];郭飞[4]

机构：[1]北京工业大学城市与工程安全减灾教育部重点实验室,北京100124;[2]中铁隧道局集团有限公司,广州511458;[3]广东海洋大学海洋工程学院,湛江524000;[4]北京市政建设集团有限责任公司,北京100048

年份：2021

卷号：51

期号：5

起止页码：762

中文期刊名：东南大学学报（自然科学版）

外文期刊名：Journal of Southeast University：Natural Science Edition

收录：CSTPCD、、CSCD2021_2022、EI(收录号：20214211037473)、Scopus、北大核心、CSCD、北大核心2020

基金：国家重点研发计划资助项目(2017YFC0805403,2019YFC1509704);国家自然科学基金资助项目(41877218,42072308).

语种：中文

中文关键词：顶推力;现场监测;数值模拟;放大与叠加效应;对比分析

外文关键词：jacking force;field monitor;numerical simulation;amplification and superposition effect;comparative analysis

中文摘要：以北京新机场线顶管工程为依托,针对水平布置的先行顶管对后续顶管顶推力的影响开展了现场试验和数值模拟研究,并对先行顶管的位置和数量进行了参数影响分析.研究结果表明,先行顶管对后续顶管侧摩阻力存在放大效应,增大顶管间距将导致该放大效应非线性减小.先行顶管的位置和数量对后续顶管侧摩阻力存在重要影响.在顶管间距为1.1倍钢管直径的情况下,当先行顶管位于后续顶管一侧时,侧摩阻力最大增长率为28.5%;当先行顶管位于后续顶管两侧时,侧摩阻力最大增长率达到41.9%.基于此提出了水平顶管施工中的顶推力群管效应理论,为大体量顶管顶推力的设计提供依据.

外文摘要：Based on the pipe jacking project of Beijing new airport line,the influence of horizontally arranged advance pipes on the jacking force of subsequent pipes was studied by field measurement and numerical simulation,and the parameters of the position and the quantity of advance pipes were analyzed.The results show that the advance pipes have the amplification effect on the friction resistance of the subsequent pipes,and the increase of the pipe jacking spacing can lead to the nonlinear reduction of the amplification effect.The position and the quantity of the advance pipes have an important influence on the friction resistance of the subsequent pipe.When the spacing of pipe jacking is 1.1 times the diameter of the steel pipe,the maximum growth rate of the friction resistance is 28.5%if the advance pipes are located on one side of the subsequent pipe;it is 41.9%if the advance pipes are located on both sides of the subsequent pipe.Based on the results,the theory of the group effect of the jacking force in the horizontal pipe jacking was proposed,which can provide the theoretical basis for the design of the jacking force of large-scale pipe jacking.