海南某公路滑坡形成机制及防治方案分析

Analysis and Mitigation of a Highway Landslide in Hainan Province

通过工程地质调绘、工程物探、工程地质钻探等手段,对该滑坡的破坏形态及形成机制进行了研究,研究表明该处滑坡可分为三部分,即深层潜在滑坡,既有公路西侧的早期表层滑坡,既有公路东侧的近期表层滑坡;滑坡区的F1裂隙发育带和公路东移时路堑开挖是形成该处滑坡的直接因素。在对滑坡稳定性分析的基础上,结合实际条件给出了具体防治措施,为类似滑坡工程的勘察及治理提供参考及借鉴。

This paper studies the failure modes and formation mechanism of a highway landslide in Hainan Province by using the combination0engineering geological mapping,engineering geophysical exploration and engineering geological drilling methods.Throughout the investigation,it is concluded that the landslide can be divided into three portions;the deep potential landslide,the historical surficial landslide at the west side of the highway and the recent surficial landslide at the east side of the highway.factors that directly attribute to the landslide are,the F1well developed fissured zone within the landslide area and the excavations for the highway alignment in the east direction.Based on the stability analysis of the landslide,practical landslide mitigation and prevention measures are proposed in the paper.