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为了探讨不同土工格栅加筋方式对深软土地基应力变形特性和不均匀沉降的控制效果,建立了土工格栅与土的动力相互作用模型,通过分析地基变形、地基应力水平、加速度传递特性以及格栅的受力情况,研究在交通荷载反复作用下,土工格栅的加筋效果和机理。计算结果表明:土工格栅加筋基层结合格栅包裹细碎石加筋垫层处置深软土地基的三层加筋法可以有效地减小软土地基的沉降,弱化地基内的应力水平,限制交通荷载的影响范围,是一种切实有效的加筋方法。
In order to discuss the control effect of different geogrids on stress-strain and uneven settlement of deep soft soil foundation, a dynamic interaction model between geogrid and soil is established. By analyzing the deformation of foundation, the stress level of foundation and the characteristics of acceleration transfer As well as the grid force situation, studies the reinforcement effect and the mechanism of the geogrid under the repeated action of the traffic load. The results show that the three-layer reinforcement method of geogrid-reinforced grass-roots combined with grid-wrapped gravel reinforced cushion to treat deep soft soil foundation can effectively reduce the settlement of soft soil foundation and weaken the stress level in the foundation, Limiting the impact of traffic load is an effective reinforcement method.