岩土力学2026，Vol.47Issue(1)：219-228,10.DOI:10.16285/j.rsm.2025.0165
斜坡埋地管道隆升模型试验研究
Experimental study on uplift behavior of buried pipelines in sloped terrain
摘要
Abstract
Vertical upheaval buckling is a critical instability mode in buried pipelines and poses substantial risks to pipeline safety.Most prior studies have focused on upheaval behavior under flat terrain,with limited attention to failure mechanisms on slopes.In this study,model tests of buried-pipeline upheaval on slopes were conducted using distributed fiber-optic sensing and particle image velocimetry(PIV).We systematically analyzed soil deformation and failure mechanisms,and the mobilization of uplift resistance,under varying slope angles and burial-depth ratios.The results show that,1)Increasing slope angle gradually reduces the soil's peak uplift resistance,while higher burial-depth ratios significantly enhance both peak and residual uplift resistances.2)Regardless of slope angle or burial depth,the pipeline displacement at the onset of residual resistance is approximately 0.2D,where D is the pipe outer diameter.3)During the uplift process,the pipe cross-section undergoes ovalization,and a wedge-shaped failure zone forms in the overlying soil.Based on these findings and Mohr's circle theory,we propose a method to calculate the peak soil resistance of pipelines under slope conditions.These findings advance understanding of soil–pipeline interaction on sloped terrain and provide theoretical and practical guidance for the design and safety assessment of buried pipelines in complex geological settings.关键词
埋地管道/光频域反射(optical frequency domain reflectometry,简称OFDR)/粒子图像测速(particle image velocimetry,简称PIV)/土-管相互作用/土抗力Key words
buried pipeline/optical frequency domain reflectometry(OFDR)/particle image velocimetry(PIV)/soil-pipe interaction/soil resistance分类
建筑与水利引用本文复制引用
王德洋,朱鸿鹄,喻文昭,谢天铖,蒋昕飞,谭道远..斜坡埋地管道隆升模型试验研究[J].岩土力学,2026,47(1):219-228,10.基金项目
安徽理工大学高层次引进人才科研启动基金资助(No.2024yjrc91) （No.2024yjrc91）
安徽省自然科学基金青年基金项目(No.ZX20250142) （No.ZX20250142）
国家杰出青年科学基金项目(No.42225702) （No.42225702）
国家自然科学基金国际(地区)合作与交流项目(No.4241101112). This work was supported by the Scientific Research Foundation for High-level Talents of Anhui University of Science and Technology(2024yjrc91),the National Science Fund for Young Scholars of Anhui Provincial(ZX20250142),the National Science Fund for Distinguished Young Scholars of China(42225702)and the International(Regional)Cooperation and Exchange Project of the National Natural Science Foundation of China(4241101112). （地区）
