以文克尔地基梁的计算理论为基础，讨论了基础底板宽度对基础梁刚度的影响以及基础梁刚度对正交十字交叉基础荷载分配的影响。

Based on the Winkler foundation beam theory, the effect of foundation width on the foundation beam rigidity and, in consequence, further on the load distribution in grillage foundation are discussed.

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当煤层顶底板粘结性能一定时，随煤层埋深的增加，煤柱塑性区宽度增加。

While the interfacial bond property is unchanged, the width of plastic zone of pillar increases with the increase of buried depth of coal seam.

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当煤层硬度一定时，随着煤层与顶底板界面粘结性能的提高，煤柱塑性区宽度增长的速度递减；

While the coal seam hardness is definite, the increasing velocity of the width of the plastic zone of pillar decrease with the increase of interfacial bond property between coal seam and roof.

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