The Parameter Of Displacement Vector Angle And Its Using In Optimization Design On The Administering Works Of Debris Slope

Slope is a kind of geological body with a certain height & gradient.It is a geomorphic form and the geological engineering,which distributes in the surface of earth widely.The failure of slope can cause seriously threatens to human life and production,Debris landslides,which includes all of the soil layer landslides,the accumulation landslides in mountainous district,and the loose accumulation landslides caused by constructing,unloading and weathering take place in the Quaternary System and recent loose accumulation distributed.Supported by project of the National Natural Science Foundation of China-Responding Ratio Feature to loading & unloading and Displacement Dynamic Prediction of the Debris Landslides(Code No.:40472141) and Responding Ratio Parameter to loading & unloading and Displacement Dynamic Prediction of the Debris Landslides(Code No.:40672182) and selecting Zhangjiawan landslide in Zigui county in the Three Gorge reservoir region of the Yangzi Rive as the example,the thesis has carried out a study on the displacement's message of the slope by means of the numerical simulation software--ANSYS.The horizontal and vertical displacements are coupled by using the displacement vector angle,and the mechanism of the displacement vector angle,especially in the character of time-space is studied profoundly.Some results are summarized as follows:1.It is found that one single parameter displacement or displacement velocity is not enough to evaluate dynamic evolution behavior and the slope failure.The displacement vector angle,an important displacement parameter of the displacement vector field,is a different from displacement or displacement velocity in dynamic property.2.Displacement vector angle reflects the direction change of force,which can be used to determine the condition of force in the evaluation of dynamic evolution behavior and the slope failure.The change of displacement vector angle reflects the change of stress field and the displacement's adjustment in evolution of slope stability.3.The paper analyzed the stress-strainproperties of the 5^th slide of Zhangjiawan landslide by numerical simulation,researched the variation trend of the displacement vector angle on the different position of the debris landslide where the anti-piles were drive,and then,calculated the most suitable pile position of the No.5 landslide of Zhangjiawan landslide.4.Designing the most suitable space between plies which makes best use of the physical mechanical performance of the soil between the piles through analyzing the mechanism of soil arching effect.