电力勘测设计Issue(12)：40-46,53,8.DOI:10.13500/j.dlkcsj.issn1671-9913.2025.12.007
软土地区电力隧道沉井对地下管线扰动模拟研究
Simulation Study on Disturbance of Power Tunnel Caission to Underground Pipelines in Soft Soil
杨逸敏 1卞洁 1但汉波 1肖铮2
作者信息
- 1. 中国能源建设集团浙江省电力设计院有限公司,浙江 杭州 310012
- 2. 中国能源建设集团浙江省电力设计院有限公司,浙江 杭州 310012||浙江大学,浙江 杭州 310058
- 折叠
摘要
Abstract
The disturbance effects of caisson construction in soft soil regions on adjacent underground pipelines pose a significant challenge to service safety of caisson.In this study,a three-dimensional finite element model was established based on a caisson project for a power tunnel in Hangzhou.The multi-dimensional impact mechanisms of the caisson sinking on the underground pipelines at different distances were systematically investigated.A joint opening displacement calculation model was developed to investigate the impact of caisson sinking on the joint opening displacement of pipelines.The results indicated that the pipelines exhibited a proximity-dependent displacement response during the caisson construction.The significant influence boundary was 0.67 times the caisson depth away from the outer wall of caisson with a low risk of joint failure in rigid pipelines.The findings can provide technical support for pipeline protection during power tunnel caisson construction in soft soil areas.关键词
沉井/地下管线/数值模拟/软土/接口张开量Key words
caisson/underground pipeline/numerical simulation/soft soil/joint opening displacement分类
信息技术与安全科学引用本文复制引用
杨逸敏,卞洁,但汉波,肖铮..软土地区电力隧道沉井对地下管线扰动模拟研究[J].电力勘测设计,2025,(12):40-46,53,8.
