川藏公路拉月滑坡破坏过程模型试验研究

拉月滑坡是川藏公路线上典型的岩质滑坡。拉月一带斜坡岩体中节理裂隙十分发育,节理、裂隙间相互切割、组合,形成具不同块状结构特征的岩体,特别是不同结构特征的岩石块体相互嵌合,形成具不同稳定状况的的岩体结构。拉月滑坡的发生机理是因块状破坏而引发的滑坡,拉月滑坡破坏过程模型试验就是从机理上分析滑坡的发生过程。拉月滑坡模型试验采用了相似材料模型试验方法,建立相似的试验模型,重现滑坡体的受力状态、变形和破坏过程。

The Model Test Research of Breakdown Process of Layue Landslide on the Highway From Sichuan to Tibet

Layue landslide is the typical rocky landslide on the highway from Sichuan to Tibet. The joint fissures developed very full in the slope body near Layue and they cut out and combine each other to form the body with the characteristic of different blochy texture. Especially, the rock block of the different structure feature interlock reciprocally to form the body structure with different stabilization situation. Because of massiveness breakdown, it bring about that Layue landslide has slided. The model test of breakdown process of Layue landslide is to analyze landslide' s occurrence process from mechanism . The test adopted the method of equivalent material model test and up build similar test model in order to recur the landslide' s force situation, deformation and breakdown process.