Calculation Method Of Pile Spacing Considering Soil Arching Effect And Influencing Factors

Respectively in this paper based on the soil arch to the whole stability analysis of soil arch stability and local conditions,two kinds of theory is deduced under the solution formulas of anti-slide pile spacing and through the project example and the numerical simulation to verify this formula,moreover,to study the effect of negative temperature of the soil arch effect mechanism,the single freezing pipe arrangement in artificial freezing method is introduced into anti-slide pile design,through the finite difference software FLAC3D to simulate thermal coupling effect of pile and the influence of the soil arch effect between piles,and based on the results of numerical simulation and related soil arching overall stability theory to establish analytical solution of pile spacing under negative temperature,Finally,the analytical solution of pile spacing was quantitatively analyzed based on the numerical simulation results.On this basis,the mechanism of soil arching effect between piles at normal(1)Based on Mohr-Coulomb criterion and one-way pressure theory,the paper deducts the pitch of anti-slip pile spacing under two kinds of mathematical models.(2)Based on engineering examples,numerical simulation and other related research results,the two theoretical solutions of pile spacing are verified.Through quantitative analysis of theoretical solutions of pile spacing,the influence of shear strength parameters of soil and the size of pile section on pile spacing is discussed.(3)Based on the numerical simulation of anti-slide pile supporting slope,a new type of frozen single-row pile model was established.Through simulating the influence of thermal coupling action on soil arch effect between piles,the theoretical formula of pile spacing under negative temperature was deduced based on the overall stability theory of soil arch under normal temperature.The beset summation formula is introduced into the analytical solution of the temperature field of barholkin single row pipe and the regional solution of the soil average temperature under the freezing condition of single row pipe is established.(4)In numerical simulation of cantilever anti-slide pile supporting the slope,on the basis of relying on the late Tecplot software,through quantitative control stress range between pile under the different depth was derived the stress contour sectioning,in addition,according to the theoretical solution of elasticity and the related indoor model test to analyze the simulation results,and through this method,study the mechanism of the soil arch effect and the definition of the high arch method,finally combining the theory of stress and deflection of the soil arch effect,from the Angle of mechanics,the mechanism is expounded.Figure[65]table[19]reference[88]...