Research On The Influence Of Building Load On Slope Stability

Under the long-term tectonic movement and weathering of the stratum in Shijiazhuang Hengda Shili Wentang area,the structural surface of the rock and soil of the slope is developed,and the design of mountain buildings needs to ensure the stability of the building foundation and the stability of the slope under the load.In this paper,numerical simulation and limit equilibrium method are used to analyze the stability of a typical 1-1 section of a construction project.Under the condition that there is a certain limit safety distance between the same slope tops,the stability of the slope under the gradually increasing load is analyzed by changing the building load and basic structure form at the upper part of the slope,and the conclusions are as follows through the research:(1)Different foundation modes of the same slope,by applying the same load F,compare the effect of additional stress and potential slip surface under the strip foundation and pile foundation,and have different effects on the stability of the slope.(2)The same slope with different foundation modes,under the same slope top limit safety distance,gradually increases the slope top load under the conditions of strip foundation and pile foundation,and the slope stability coefficient gradually decreases;under the same load,the slope is The stability factor under the pile foundation is greater than that of the strip foundation,indicating that the stability of the slope under the pile foundation is greater than that of the strip foundation.(3)Two kinds of numerical analysis software under different calculation principles(FLAC3D and Geostudio)are used to analyze the slope stability.FLAC3 D numerical simulation is used to analyze the slope stress and the cloud map changes of the potential slip surface under the action of load.Geostudio software is used to analyze the displacement changes of the potential slip surface of the slope under the action of load.By comparing the two methods,the stability coefficient calculated by the former is greater than the safety factor calculated by the latter,indicating that the latter does not consider the stress and strain in the rock and soil mass.(4)For the same slope with the same foundation form and the same slope top limit safety distance,Flac3 D numerical simulation aims at gradually increasing the slope top load,and calculates the slope stability coefficient.It shows that as the building load on the slope top gradually increases,the rocky edge The stability coefficient of the slope gradually decreases,and its stability coefficient shows a quadratic non-linear change law.