边坡水平排水管冻融排水试验研究  

Research on freeze-thaw drainage tests of horizontal drainage pipes on slopes

作　　者：徐春华 于皓琳[2] 徐学燕[2] XU Chunhua;YU Haolin;XU Xueyan(The Architectural Design and Research Institute of Harbin Institute of Technology Co.,Ltd.,Harbin 150090,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150090,China)

机构地区：[1]哈尔滨工业大学建筑设计研究院有限公司,哈尔滨150090 [2]哈尔滨工业大学土木械程学院,哈尔滨150090

出　　处：《低温建筑技术》2024年第11期45-47,52,共4页Low Temperature Architecture Technology

摘　　要：季节冻土区春季冰晶融化,边坡不断发生冻融滑塌工程灾害事故,造成重大经济损失。文中通过边坡水平排水管的冻胀融沉试验和冻融排水试验进行研究。研究结果表明,排水管应用在季节冻土区边坡工程中,优选75 mm直径PE排水管,施工布置密度为1根/m^(2),排水管仰斜角度为6°~8°,分析出多层水平排水管技术,并得到了此技术边坡稳定性的计算。研究可为减少寒区边坡冻融滑塌病害及提高边坡稳定性提供参考。In seasonal frozen soil regions,the melting of ice crystals in spring leads to frequent freeze-thaw landslide engineering disasters,resulting in significant economic losses.This study investigates the use of horizontal drainage pipes on slopes through freeze expansion and settlement tests,as well as freeze-thaw drainage tests.The results indicate that in slope engineering within seasonal frozen soil areas,a 75 mm diameter PE drainage pipe is preferred,with a layout density of one pipe per square meter and an inclination angle of 6°to 8°.The study analyzes a multi-layer horizontal drainage pipe technique and provides a calculation formula for slope stability using this technique.This research can serve as a reference for reducing freeze-thaw landslide issues and improving slope stability in cold regions.

关 键 词：冻融滑坡 多层水平排水管 防冻融滑塌技术 

分 类 号：TU992[建筑科学—市政工程]