路基工程Issue(2)：50-56,7.DOI:10.13379/j.issn.1003-8825.202405013
砂砾地层多孔平行顶管顶推力计算方法
Calculation Method of Jacking Force of Multi-hole Parallel Pipe Jacking in Gravel Stratum
摘要
Abstract
In order to study the jacking force value required for the construction of multi-hole parallel pipe jacking in gravel stratum,a jacking force calculation method considering the mutual disturbance between pipes was proposed by comprehensively considering the pipe-soil contact,the drag reduction of mud around the pipe and the soil arching effect.Based on the Comprehensive Pipe Gallery Project of Danxia Road in Nanchang City,the measured values of the project,the existing literature data and the theoretical calculation results were compared to analyze the influence of soil parameter changes on the jacking force.The result shows that,the jacking force decreases with the increase of the internal friction angle φ.Relying on the the three hole pipeline in this supporting project,the difference between the jacking force calculated by this method and the measured value is 24.67％,7.16％and 0.48％,respectively.Compared with other existing theoretical calculation methods,the error is the smallest,indicating that the formula for calculating the jacking force of the multi-hole parallel pipe jacking is more applicable in gravel stratum.关键词
顶管工程/顶推力计算/砂砾地层/多孔顶管/土拱效应Key words
pipe jacking project/top thrust calculation/gravel strata/multi-hole pipe jacking/soil arching effect分类
交通工程引用本文复制引用
彭焱锋,刘维正,谭际鸣..砂砾地层多孔平行顶管顶推力计算方法[J].路基工程,2025,(2):50-56,7.基金项目
湖南省建设科技计划项目(KY202108) （KY202108）
中铁隧道局集团科技创新计划(隧二研合2020-08) （隧二研合2020-08）
