The Numerical Analysis Of H-style Anti-sliding Piles Managing A Red-layer Landslide

h-style piles are of great integrating stiffness, adjust its inner stress automatically,control the supporting structures deformation as a new sliding support structures andwith advantages like short construction periods, construction convenient and pricethrift which lead to being emphasized in sliding slope repairing. h-style piles is ofparamount theoretical and engineering values for its complicated structures, imperfectdesigning theories and burdening mechanism. h-style piles burdening anddeformational characters are simulated with ABAQUS software taking a certainred-layer sliding slope in shonan as background and analyzed in detail on its maininfluence factors. The main contents and results are as following:(1) Characteristics of finite element method (FEM) and ABAQUS software arebriefly introduced especially the key technologies and related theories used in thisthesis.(2) Causes of red-layer sliding slope are analyzed in detail; internal causes(sliding slope soil structures), main inducing causes (unceasing rainfall, loading onthe top of slopes, undermining slope bottom) are obtained.(3) Vertical scarp shaped from slope excavations and after-managing slidingslopes FEM models are found respectively with ABAQUS software based onstructural planning and its sliding characters. Steady statuses are formulated andassessed with the finite element strength reduction technique when no rain, rainfall,after management which show sliding slope is steady when no rain; critically steadyafter management, unsteady when rainfall.(4) h-style piles are simulated with ABAQUS software and its deformation andcharacters are obtained and compared with generally adopted anti-sliding piles(one-row, double-row with no connection on the pile top). The results show thath-style anti-piles is superior to anti-sliding piles (one-row, double-row with noconnection on the pile top). (5) Influenced on h-style anti-piles deformation and burdening is analyzed bychanging pile parameters (pile spacing distances, pile fixation ratios, couping beamstiffness). Optimized parameters (pile spacing distance:5d, pile fixation ratio:3/7h,couping beam stiffness:1.2EI).(6) This kind of sliding slope managing is effective and have sound effect bycomparison between monitoring results and simulating data of it which proved that itis reliable to simulate h-style anti-piles with ABAQUS software.