Overburden pressure has a strong influence on permeability and pore structure.
上覆地层压力对渗透率及孔隙结构特征影响很大。
Methods used in the prediction of pore pressure can be classified into two groups-the method of trend line and the method of percentage of overburden.
用地震速度资料进行钻前地层压力预测，大体可分为趋势线法和支撑上覆岩层压力的百分比法。
The pressure of the weight of overburden, or overlying rock, on a formation; also called geostatic pressure.
上覆层或上覆岩石的重量对地层的压力，也称为地静压力。
The overburden pressure system is also introduced and it can supply sufficient overburden pressure for the core gripper.
同时设计了该夹持器的上覆压力系统，可在实验中提供足够大的上覆压力。
Parametric analysis is carried out to investigate the effects of soil dilation and overburden pressure on the soil nail pullout resistance.
结果显示，当上覆压力较小时，剪胀角对抗拔应力的影响较小。
In this paper, a three-dimensional (3d) finite element (fe) model is developed to simulate the behavior of soil nail considering the effects of overburden pressure and dilation.
通过建立一个三维有限元模型，研究土钉在不同上覆压力和剪胀作用下的土钉抗拔行为。
The results of laboratory tests showed that the apparent preconsolidation pressure of Shanghai clay is higher than the effective overburden pressure.
室内试验成果表明，上海粘土的准先期固结压力较天然有效上复压力大得多。
The statistical results show that the clays have high water contents, and the ratio of their vane test strength vs. the effective overburden pressure ranges from 0.2 to 0.4.
统计表明该浅层软土含水量高、原位十字板剪切强度和有效上覆应力的比值约为0．2-0．4。
The statistical results show that the clays have high water contents, and the ratio of their vane test strength vs. the effective overburden pressure ranges from 0.2 to 0.4.
统计表明该浅层软土含水量高、原位十字板剪切强度和有效上覆应力的比值约为0．2-0．4。
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