Analysis And Simulation Of Soil Arching Effects On Anti-slide Piles

In this study, the mechanic of soil arch between anti-slide piles in different ground will be analysed, and based on this, the soil arch effect in different ground will be reaearched and the calculation method of critical space between piles will be decided. Based on theory analysis, the mechanic of forming soil arch, parameters of soil and the roughness of interface between soil around piles will be investigated by means of the FEM. The chiefly contents are as follows:1. According to the mechanic of big and small primary stress arch and particulate matter theory, the soil arch mechanic of anti-slide piles in different earth is done, and then, we study the soil arch styles of anti-slide piles in different ground. Last, the mechanic of soil arch between piles is simulated by numerical simulation, it shows that the analysis above is correct.2. On the summarization of the research of the soil arch between anti-slide piles, the soil arch effect of setting anti-slide piles in clay soil is studied. By use of the effect location of arched beam to spring in soil arch theory, the shape fo arch and damage condition of soil arch and so on, the reasonable result is obtained, and on the basis of the result, it can propose the calculation method of critical space between anti-slied piles in clay soil.3. In real engineering, it can't form the big primary stress arch of soil between piles when mounting the anti-slide piles in non-viscous soil, and it appears to be small primary stress, little research has been done for this field. This paper will do some research aiming at the small primary stress arch shape of aiti-slide piles, bearing mechanics and transfer mechanics of landslide force. Last, the calucation method of criterical pile space of anti-slide is gained in non-viscous soil.4. In this paper, different constitutive models are used for different soil to simulate the soil arch effect of anti-slide piles in large number, and the influence of various factors to soil arch between piles is worked. It shows that the theory analysis is correct by comparing the simulated results with the theory analysis above, and the conclusions from the simulation and the theory are uniform.