川藏公路二郎山龙胆溪滑坡滑动机理与整治

通过对二郎山龙胆溪滑坡的环境地质条件和滑坡基本特征的分析,对该滑坡的各种影响因素和滑坡的发生、发展机理进行了研究,在此基础上阐明了滑坡的综合整治工程方案。

The Sliding Mechanism and Treatment Measure of Longdanxi Landslide in Erlang Mountain

The landslide is located at the right bank of Longdanxi in the Erlang mountain where the Chuan-zang highway stretches. Since the rainstor ms in July and August 1997, the rock-mass has been deformed badly and the highway has beensettled largely. The defor mation has been increasing, so it would destroy the road if the landslide weren't treated. Fortunately, the treat ment project has been carrying. In this paper, according to the geological-geo morphic conditions and the structure of the slide-mass, the authors analyze factors resulting in the slie and thus propose the sliding mechanism, that is, the geological factor is the basis and the rainstor ms and the erosion by Longdanxi are main activating factors. First, the foot of the slope was destroyed, then it led the uppers to slide, at the sa me ti me, the strength for resisting slide has been reduced with the rain' s pervasion, finally, the landslide occurred. To protect the road, the syntheses method including pre-stress anchor anti-pile and fra me, the drainage groove and the vegetation has also been illustrated in the paper.