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软弱地基砂垫层厚度与基础宽度之间的关系式甚为复杂,在控制下卧层不产生塑流变形的条件下,可用下式表示:p=(sinφ/BH)(B~2/4+H~2)(γ_2H+γ_1h+Cetgφ)π+γ_1h(1) (1)式系根据弹性理论在地基中任意一点由于荷重(p—γh)所引起之主应力不超过外荷载(边缘临界荷重p_(KP))等条件推导出来的。
The relationship between the thickness of the sand cushion of the soft foundation and the base width is very complicated. Under the condition that the underlying layer does not produce plastic flow deformation, the following formula can be used: p=(sinφ/BH)(B~2/4) +H~2)(γ_2H+γ_1h+Cetgφ)π+γ_1h(1) (1) The principal stress caused by the load (p-γh) does not exceed the external load (edge margin) at any point in the foundation according to elasticity theory. Load p_ (KP)) derived conditions.