市政技术2026，Vol.44Issue(3)：308-318,11.DOI:10.19922/j.1009-7767.2026.03.308
给水钢顶管上跨电力管廊工程影响特性分析
Analysis on the Impact Characteristics of Water Supply Steel Pipe Jacking Overpass the Power Utility Tunnel Project
董瑞龙 1戴彦雄 1张仁豪 1曲鹏冲1
作者信息
- 1. 机械工业勘察设计研究院有限公司,陕西西安 710021||陕西省特殊岩土性质与处理重点实验室,陕西西安 710021
- 折叠
摘要
Abstract
To study the impact characteristics of water supply steel pipe jacking construction on the existing under-ground power utility tunnel project,a 3D geological-structural numerical model was established based on a munici-pal pipe jacking project in Xi'an.Under various working conditions,the influence of pipe jacking construction on the deformation and surface settlement of the existing power pipe gallery were analyzed.The research results indicate that the pipe jacking construction has little impact on the deformation and internal forces of the existing power utility tunnel is limited and both of them meet the requirements of relevant specifications;Surface subsidence is highly sensitive to changes in the thickness of equivalent layers.In areas sensitive to surface subsidence,it is necessary to strictly control relevant construction parameters to ensure construction safety and quality;The crossing angle has a significant impact on the final uplift value of the power pipe gallery.In the process of upper crossing construction,in order to effectively control the uplift of the lower structure,the method of crossing at a large angle should be adopted as much as possible;The impact of stiffness reduction coefficient on surface settlement and power pipe gallery de-formation is relatively smaller.Therefore,it is recommended to take a value of 0.4～0.6 in the actual simulation process.This research result can provide some reference for the design and construction of the existing structures with the same type of pipe jacking.关键词
电力管廊/顶管施工/上跨/数值模拟/影响因素Key words
power pipe gallery/pipe jacking construction/overpass/numerical simulation/influencing factor分类
建筑与水利引用本文复制引用
董瑞龙,戴彦雄,张仁豪,曲鹏冲..给水钢顶管上跨电力管廊工程影响特性分析[J].市政技术,2026,44(3):308-318,11.
