Loading Analysis On Anti-Sliding Rock-Socketed Pier And Its Application On Landslide Treatment

Landslide is a common geological casualty in the southwest mountain area of our country. Among many manners about landslide treatment the anti-slide pile is applied in a large number. At present, the designers sometimes ignore the relation between the parameters and the inner force & displacement of anti-slide pile when the design and calculation have occurred. Therefore, the value of deformation to piles bigger than the real one, or the position of trust and the max inner force are not correct. So the comprehension about important parameters is significant to the support structure. The foundation factor method is applied on the calculation about wide-range different parameters of anti-sliding rock-socketed piers, and the calculation is based on K method. Results account for the influence extent about some parameters to the support structure, such as section physical dimension of piles, depth about embedded rock mass, strength of rock mass in anchorage region and so on. The selection and optimization about structure forms of piles are discussed at the meantime. The finite element models of anti-sliding rock-socketed piers are established according to present research state about arch effect. The gravity and trust are considered together in the model. The space distribute character of arch effect can be discovered through the result. And their character of different spacings and soil strength are compared in order to achieve the perfect effect. The mechanics of trust delivery is recognized deeply by analysis of the arch effect. The stress characters of cantilever and embedded pile are also comprehended further. The author suggests that the finite element model of pile should be three-dimensional. Above all, the gravity of sliding mass can not be ignored to study combined action questions between rock and soil mass. At the end of the thesis, the application of anti-sliding rock-socketed pier in prevention engineering of landslide near Pingxi large-sized bridge is introduced. In sum, the article is looked forward to supply some help for designers of anti-sliding rock-socketed pier.