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利用Mindlin竖向附加应力公式,通过积分得到地基内矩形面积上三角形分布荷载作用下角点下竖向附加应力解析式,并通过对地基内矩形面积上均布和三角形分布荷载作用下角点下竖向附加应力公式关于深度进行积分,得到计算角点下竖向附加应力面积的解析式,根据解析式制表格,可供运用应力面积法进行群桩实体基础等的最终沉降计算时查用。
Use Mindlin’s vertical additional stress formula to obtain the analytical expression of the vertical additional stress under the angular distribution of triangles on the rectangular area of the foundation through integration. Through the integral rectangular distribution of the rectangular area of the foundation and the distribution of triangular loads, The additional stress formula is integrated with respect to depth to obtain the analytical formula for calculating the vertical additional stress area under the corner point. According to the analytical formulating table, the final settlement calculation of the group pile solid foundation can be performed using the stress area method.