The Stress Mechanism And Engineering Application Of H Type Of Anti-sliding Piles

With the advancement of China’s western development strategy, more complex structures and landslidethrust geological disasters are come across on the basicprocess of building. In recent years,h-type anti-slide pile of new protective structure is gradually developed, Because of the beam action, The front and back row piles are connected into a frame structure. Thus its has a resistance force, displacement characteristics. However, due to the structure of the space complexity, makes its calculation method, distribution of landslide thrust is not clear. To solve these problems, In this thesis, two aspects of theoretical analysis and numerical simulation on the H anti-slide pile structure force calculation are discussed, Through the engineering practice and verify the structure superiority. The main research contents include the following aspects:①Put forward two kinds of methods.of Slope pressure distribution around the pile For the pile near the rock, soil resistance analysis of Anti-slide pile anchorage length and load of pile. The discriminant mode of pile bottom supporting conditions,Elastic pile and rigid pile are discussed.②Explore to the structure calculation method of h type of anti-sliding piles. By make sure the thrusting force distribution situation between the former pile and the back pile, then provides calculating load distribution state of h type of anti-sliding piles. Based on the numerical method of structural mechanics, we get the analytical solution for upper structure, and get the analytical solution for bottom structure by P-y curve method or elastic (rigid) pile method.③On the basis of practical engineering, Use PLAXIS software to establish a reasonable numerical model,Analysis of type h anti-slide pile structure beam length, beam, Gangdu between rows of modulus of deformation under the influence of factors such as type H, anti-slide pile structure stress distribution And puts forward the optimal structure design.④In the same landslide conditions, Compared single-row anti-slide pile and H anti-slide pile structure design,Come to h anti-slide pile has more advantages in force.