Prestressed Cable Anti-slide Pile Applied Research In The High Cut Slope

The pre-stressed anchor cable anti-sliding pile is a new stake-anchor structure that is more applied in the anti-slippery projects in recent years, but its structural design theory research falls behind far its project application, and its design calculation lacks the corresponding standards to instruct, so the existence questions are many. In view of the background of this new type of anti-sliding structure using in slope project in large amount, the article, based on the management of Guangnan to Yanshan freeway K201+320 landslide, puts forwords the corresponding engineering management ideas and the main treatment methods after analyzing the formation mechanism of the landslide and stability evaluation, and carries on the numerical analysis to the reinforcement measure of pre-stressed cable sliding pile. In this paper, the main research works done are the following areas:1,Based on the theory of slope stability analysis, it is carried on stability evaluation to Guangnan-Yanshan highway K201+320 landslide, and suggests its management idea and major project treatments, of which the area reinforced by four pre-stressed cable sliding piles is studied through numerical simulation analysis.2,In the three-dimensional numerical model established in article, landslide body has used in ANSYS software classical Drucker-Prager failure criterion by buckling, and has carried on contact analysis between the landslide body and slippery bed rock,anti-sliding piles and the rock(or soil) surrounding piles in use of 3D contact elements.3,It is analyzed to the characteristics and issues related of anti-sliding pile with pre-stressed anchor cable by finite element numerical simulation combining with the above project example, and some conclusions for the engineering design and calculation are obtained.