Research Of Steel Pipe Type Of Retaining Wall Reinforced Slope

Grouting Steel Micro Pile reinforced composite structures is a new type of landslide retaining measures. However, due to lack of system study of stress mechanism, effect of pile-soil interaction, sliding retaining computational theory, construction technology and anti-corrosion technology etc., which makes the research significantly lags behind the practice. Design has no theory to support, generally relying on experience or through the "engineering analogy", which seriously hampered the promotion and application of the structure.Based on the type of Steel Pipe Grouting retaining wall in Landslide features, because of the role of the transformation of geological bodies and pile-soil composite structure stabilizing, and reinforcement mechanism of geological bodies, we can known that the retaining structure has better adapt ability and applicability. The calculation method of the Steel Pipe-type retaining wall reinforced slope, which includes the size of the retaining wall, retaining wall strength, wall stress and eccentricity of the basement, foundation strength of the reinforced slope stability was systematically expounded. In addition, the systematic research of Grouting Steel Pipe Construction in-depth is conducted to solve technical bottlenecks and to innovate construction technology.Against the application of the most prominent class of slope, taking the granite slope landslide in a National Highway Improvement Project as an example, the grouting Steel Pipe wall reinforcement applications and the retaining effects of landslides and the design calculation results are checked. The one hand, using the FEM software, the effect of pile-soil interaction is simulated and analyzed, showing that the improvement in sliding slope is marked and soil arching effect is obvious. On the other hand, by on-site data monitoring, continuous retaining wall of the slide is better than single micro-pile, also obvious creep deformation in a very short period of time became stabilize. In final, Grouting Steel Pile wall's marked effect on the landslide was description, and design of a certain frame of reference was constructed for the future.