The Research On Mechanical Mechanism Of The Slope Protection On Anchored Wall

The retaining wall is widely used in highway engineering as a reconstruction. Because Chinese overall topography is complicated, especially the western mountainous terrain, is extremely complex geological, herein constructs roads constantly exists dangerous sections such as high fill and excavation slope sections, special sections, close to the quake zone foundation sections, etc. Along the slope rock occur easily rock slide,landslides and debris flows of geological disasters, and badly damage roads. With the rapid development of highway construction especially propulsion of the Midwest, the retaining wall embankment is bulked and used widly, and it's structure never-ending changes and improvement, design theory in development.Traditional road embankment like gravity retaining wall, gravity, cantilever, wall and other forms of retaining wall in these places use often restricted, later developed light retaining structures such as anchor type, reinforced, column board retaining structures. These retainings easy construct and save cost, breakhrough the application of some traditional retaining wall. But because of its application for a short time, relevant research is still lacking, design and calculation theory is not perfect,we must be for further research.Using the anchor bolt retaining wall is the technology of the formation of a soil retaining structures. Anchor is a new kind of the tension member, one end of it is linked together with engineering structures, another end through drilling, insert, grouting bolt, curing process in the stability of the anchorage, to inherit the earth pressure exerted on structures, the thrust, thus use bolt and formation of the anchoring force to maintain the stability of structures. The size of the lateral pressure retaining wall is relative with soil and rock mechanics properties, wall, supporting structure form and displacement direction and size. Due to the special structure of retaining bolt, the influence factors of the lateral pressure is more complex. As a kind of flexible structure, anchor earth-retaining wall may allow the traces of the deformation of the wall, can make lateral pressure distribution on again, thus make the structure of the lateral pressure are of great uncertainty. Theoretical analysis and experimental results from effect anchor earth-retaining wall pressure distribution factor would very complicated. The influence factors are the filled soil after a wall, wall surfaces, the properties of soil retaining wall structure stiffness and bolt the size of the deformation of the bolt, layer number and size, elastic, anchor prestress anchor is whether the retaining wall by the construction methods etc uni-axial directly affect the size and distribution of soil pressure play. Distribution chart may be triangle.trapezium or rectangle in different conditions, using only trapezoid or lateral pressure increase linearly with the depth of the triangle stress cann't reflect the many graphics of retaining bolt lateral pressure situation. In view of this, this article will be carried out research work as follows:(1) Analysing and considering the limits of retaining bolt in wall displacement modes after filling active earth pressure distribution;(2) Using the ANSYS finite element program established slope soil retaining plate are analyzed, and the model of three different modes of soil retaining wall displacement pressure distribution and change;(3) Application MathCAD prepare improvement program in the wall, according to circumstances would stress calculation theory, three moment equation of retaining structure analysis of internal ribbed itself actual distribution, and direct the actual engineering design.