Failure Types of Highway Slope Diseases and Mechanism Analysis of Soil Nailing Anchorage

Abstract

In this paper, through the analysis of slope failure types, including creep deforming damage, landslide, frozen stagnant gelifluction and thaw slumping, the influence of the seven factors of slope failure has been analyzed, that soil nailing technology can be used as a measure used in subgrade slope protection. For soil nailing technology principle is analyzed, including the transfer of soil nail on the soil skeleton constraint effect of soil nailing, soil can share the load, stress and diffusion effect for soil nail length, density and diameter distribution were analyzed, soil nailing technology supporting slope stability, soil nailing technology can be considered for the stability of the roadbed slope protection.1 Northeast China in the seasonal frozen soil coverage area, the phenomenon affected by seasonal frost heave and thaw is quite serious on road subgrade, and subgrade slope stability is often affected by this climate characteristics. Compared with other China regions, seasonal and regional characteristics and climate change are very complex. In the winter, the ground temperature from surface to underground water slowly reduced, freezing; and along with spring temperature rising, the ground is frozen water from the surface to melt, under the ground in the ice state, so that the water can not penetrate into the soil affected by road slope stability on the surface. The earlier application of soil nailing protection in foundation pit and tunnel engineering, gradually applied to the treatment of highway slope. The research of highway slope nailing protection in seasonal frozen region is a shortage, this paper will study the usage for highway slope nailing protection feasibility.