摘要
武义县柳城镇大坪村山体因国道(G235)改建施工,诱发古滑坡表部失稳变形。经调查研究,结合滑坡体的工程地质特征和变形发育特征,认为该滑坡为一古滑坡,滑坡体岩土体结构松散,地形坡度前陡后缓是滑坡发生的背景条件,前缘切坡修路是古滑坡复活的主要诱发因素;古滑坡体现状整体稳定,其前缘滑坡舌地段的斜坡目前仍处于不稳定状态,需采取截排水、挡墙支护和专业监测等措施进行防治。
The surface instability and deformation of ancient landslide were induced by the reconstruction of national highway(G235)in Daping Village,Liucheng Town,Wuyi County.After investigation and research,combined with the engineering geological characteristics and deformation development characteristics of the landslide mass,it was considered that the landslide was an ancient landslide,with loose rock and soil structure.Steep terrain slope in front and gentle terrain slope in back were background conditions for the occurrence of the landslide,and slope cutting and road construction at the front edge were the main inducing factors for revival of the ancient landslide.The ancient landslide was generally stable,but the slope at the front landslide tongue was still in an unstable state.Measures such as interception and drainage,retaining wall support and professional monitoring shall be taken for prevention and control.
作者
周正飞
徐磊
安双个
ZHOU Zhengfei;XU Lei;AN Shuangge(No.3 Geological Brigade of Zhejiang Province,Jinhua 321001,Zhejiang,China;No.269 Brigade of Zhejiang Nuclear Industry,Jinhua 321017,Zhejiang,China)
出处
《资源信息与工程》
2022年第2期129-132,共4页
Resource Information and Engineering
关键词
古滑坡
影响因素
形成条件
防治措施
ancient landslide
influencing factors
formation conditions
prevention and control measures
