Analysis Of Soil Slope Stability Considering The Stability Of Soil Slices Is Unequal

Both classical methods of soil slices and current various methods of soil slices suppose the stability of all individual slices equal to the stability of slope. However, the analysis results only can ensure the whole slices system to up to condition of limit balance but not individual slices, so these methods belong to unclosed limit balance method of rigid. In fact, the stability among individual slices is not equal. Under the prerequisite of considering this factor, this paper expounds and proves a method of slices which can guarantee both individual slices and whole system of slices to up to a condition of rigid limit balance, at the same time make analysis of soil slope become into a kind of closed method of rigid limit balance.The critical problem in this study is how to get transferal force between slices and how to calculate the stabile factor of slice system according to the stabile factor of individual. At first, under the condition of stable system, his thesis researched the advance balance condition of slices and found an advance force of up to the condition. Second, the limit balance condition of slices was arrived by using the condition of shared force edge should conform to some orders to adjust the force of slices shared. Finally, the force of inter-slices was gotten through comparing advance balance condition and limit balance condition. Under unbalance condition, the system is in a movement condition in which it was not along with the direction of inter-slices way line to escape. According to the concordant principal of acceleration and taking the research of the co-force causing of accelerant movement of soil slices as a transitional way, we have obtained the linear equation for calculating the force of inter-slices.The theory formula according stabile factor to calculate the stable factor of slope was gotten through deep-going research for slip factor. The basic study content of this essay is follow as:1.To calculate the stable factor k_i~0 of individual slices according to self-forced condition of slices,under the condition of without inter-slices force.2.To calculate transferal force R_i, stabile factor K_i of individual slices and stabile factor K of the stable slope, under the condition of there is a level transferal force between slices and the slope is stable. If the slope is not stable, to calculate the transferal force R_i between individual slices, the stabile factor K_i of individual slices and the stable factor K of the unstable slope in term of concordant conditions of acceleration.