摘要
209国道K1661＋370-420段滑坡位于湖北省宜昌市兴山县境内,受强降雨作用,坡体产生了较大变形,出现了古滑坡复活现象。通过地质条件分析,阐明了滑体的破坏机理,指出裂隙扩张、大气降水和人工扰动为其主控因素,并采用极限平衡法对坡体进行了稳定性评价,提出了钢轨桩与挡土墙相结合,辅以排水措施的加固方案。结果表明,滑坡经治理后达到稳定状态,该方案对本地区滑坡的防治具有借鉴意义。
The landslide between Station K1661＋370and 420 of State Route 209 is located in Xingshan County,Yichang City.This ancient landslide was reactivated by the excessive precipitation.The landslide mechanisms are discussed based on the thorough understanding of the site geological conditions.The main triggering factors identified are：expansion of the fissures;precipitations;and human activities.The sliding body was evaluated with the limit equilibrium method.The mitigation measures are a combination of rail-track pile supported retaining wall with the surface drainage.The construction results indicate that the landside treatment measure is successful.
出处
《土工基础》
2015年第3期10-13,共4页
Soil Engineering and Foundation
关键词
古滑坡
稳定性
钢轨桩
Ancient Landslides
Slope Stability
Rail Track Piles
