The ground pressure depends upon the mechanical properties of soil and the geometry and weight of the machine.
接地比压视土壤机械性质、机耕船的几何尺寸和重量等因素而定。
The mechanical behaviour and properties of a rock mass are obviously determined by its structure, lithology and its occurrence, and especially by the ground stress.
岩体的力学作用和力学性质明显地受岩体结构、岩性及岩体赋存条件，特别是地应力控制着。
Evidently, the severe degree of ground pressure behaviors is not only relevant to the rock pressure, but also interrelated with the physical and mechanical properties of the rock around laneway.
显然矿压显现的剧烈程度不仅和矿山压力的大小有关，而且和井巷围岩自身的物理、力学性质也紧密相关。
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