饱和粘性土地基固结的可靠性设计方法

将概率统计理论引入饱和粘性土地基一维固结问题的分析 ,提出了饱和粘性土地基一维固结概率分析的中心设计系数法 ,该方法用中心设计系数将饱和粘性土地基一维固结可靠性设计与常规设计联系起来。推导了竖向固结系数为伽玛分布时设计系数的计算公式 ,并据此研究了设计系数的变化规律 ;提出了饱和粘性土地基一维固结可靠性设计的一般步骤 ,并用算例说明了该法在实际工程中的应用

RELIABILITY DESIGN METHOD OF CONSOLIDATION OF SATURATED COHESIVE SOIL GROUND

On the basis of probability and statistics theory,a center design coefficient method of one\|dimensional consolidation probability analysis of saturated cohesive soil ground is proposed. In the method the probability design of one\|dimensional consolidation of saturated cohesive soil ground correlates the conventional design by the means of center design coefficient. Under the conditions of the vertical coefficient of consolidation being a gamma distribution, the formulas for computing center design coefficient are derived. According to the formulas, the variation regularity of center design coefficient is studied. A probability design procedure for one\|dimensional consoildation of saturated cohesive soil ground is established and the practical usage is illustrated by example.