Model Test Study On Anchor Anti-slide Pile And Its Safety Inspection Method

Loess landslide is China's widely developed in a loess region, multiple, harmful strong supergene geological disasters, which is characterized with the collapse of nature, often show faster sliding speed, sliding distance far; from landslide-scale point of view, loess landslide You Yi mainly small and medium sized landslide.As the important retaining structure, anchor anti-slide pile has played a very positive role in large and medium-sized landslide treatment project in recent years. However, its theoretical research lagged far behind the engineering practice leaded to sacrificing engineering investment in actual application process.This article is according to the "control techniques Micropile Landslide large physical simulation test" as the theoretical basis for further study, focusing on anchor anti-slide pile landslide applications in the carrying mechanism of deformation and failure modes of force issues.The main research achievements in this thesis are as follows:(1) Doing landslide model test respectively, which are landslide basic parameters in physical model test,the common anti-slide pile of physical model experiment,anchor pile and physical model experiment. Providing certain basis for anchor anti-pile in the application of landslide disaster engineering.(2) Through the analysis of the test data, we summarized the deformation law of anchor anti-slide pile and smooth body; earth pressure variation rules and the anti-slide pile distribution and the internal force distribution of body anti-slide piles.(3) On the basis of physical model experiment, we proceeded the finite element numerical simulation, we conclude the stress law of anchor pile and anchor pile and the ratio of the relationship of anchor axial tensile force between anchor piles; and compared with the results of physical experiment.(4) Finally, through the comparative analysis of physical model experiment and numerical simulation, we conclude the deformation damage evolution rule of the anchor pile and landslide; and propose anchor pile early warning criterion and safety prediction model. Summarize the safety monitoring scheme of the anchor pile during construction and operation...