雷公滩水电站滑坡特征及其防治对策

Landslide Features of Leigongtan Hydropower Station and How to Forecast and Harness

雷公滩水电站右岸滑坡位于贵州省罗甸县檬江下游，出露地层为三叠系中统边阳组（Ｔ２ｂ）薄层、中厚层泥灰岩、泥岩夹少量砂岩，由于工程施工中岸坡开挖不当，引发的牵引一推移式滑坡，给１２０ｍ进厂公路和部分主体建筑物造成威胁，目前滑坡治理工作已基本结束。本文详细地论述滑坡的形态特征及活动规律，探讨该滑坡的形成条件及诱发因素，并提出了相应的冶理原则和对策。

The landslide of the right bank of Leigongtan Hydropower Station is located in the downstream of Mengjiang River in Luodian county, Guizhou.The strata exposed there are thin-and medium-bedded marl and mudstone with minor limestone of Middle Triassic Bianyang For. (T2b). The landslide (towtractive type ), caused from unapt excavation during the project construction,brought about a great threat against both a 120 meter-long road leading to the project and the main building. At the present, the landslide has been harnessed. This paper describes in detail the landslide features and moving regularity. Also, the conditions and factors for forming and Inducing the landslide are discussed, and the relative principles and measures for harnessing the landslide are Suggested.