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
徐春华 1于皓琳 2徐学燕2
作者信息
- 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
- 折叠
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/m2,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.
Abstract
In seasonal frozen soil regions,the melting of ice crystals in spring leads to frequent freeze-thaw land-slide 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 re-sults indicate that in slope engineering within seasonal frozen soil areas,a 75 mm diameter PE drainage pipe is pre-ferred,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 tech-nique.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Key words
freeze-thaw landslides/multi-layer horizontal drainage pipes/freeze-thaw slide prevention technology引用本文复制引用
出版年
2024
NETL
NSTL
万方数据