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《Sichuan Building Science》 2006-05
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Micro-analysis of water pressure and earth pressure on support structure

CAO Xueshan(Hehai University,Nanjing 210098)  
On basis of permeability test of soil,this paper discussed micro-scopically the state of inter-aggregate pore water.There are many conclusions.First,as the inter-aggregate pore water of non-cohesive soil is connected each other,water pressure and earth pressure are suitable to be calculated separately.Second,the state of inter-aggregate pore water of cohesive soil is determined by(balanced) condition between damping of bound water membrane and permeability pressure of hydraulic gradient.Third,maximum and minimum water pressure and earth pressure in cohesive soil are separately calculated by method of water-soil together and method of(water-soil) partly.Fourth,when there is no seepage flow,it is suitable to calculate water pressure and earth pressure by method of(water-soil) together.Fifth,if there is seepage flow,it is found safer to calculate water pressure and earth pressure by method of water-soil partly.
【CateGory Index】: TU473.2
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