【Key Words】rectangular foundation；uniform load；triangular distribution load；vertical stress coefficient
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The relation between lateral pressure coefficient and vertical effective stress in passive region in front of wall is still given less concern.
粉砂粉土中，基坑被动区土体水平侧压力系数与竖向有效应力关系的研究还鲜有报道。
The lag distance of abutment pressure behind working face increases, but the convergence coefficient of vertical stress doesn't change obviously with the increase of mining height.
分层开采与综放开采工作面滞后支承压力变化规律是，随着采高的增大，工作面滞后支承力的距离加大，垂直应力集中系数差别不大。
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