页岩储藏气体比其他岩石更密封,要从中抽取就必须用海量淡水在高压下炸开页岩并,这种方法叫做水压致裂法。
Shale traps gas more tightly than other rock. To extract it, the shale is blasted with huge volumes of fresh water at high pressure, a practice known as hydraulic fracturing, or "fracking".
归一化后的孔隙水压力比与广义剪应变之间的关系可以用双曲线表示。
The results also showed that the relationship between the normalized pore water pressure and the generalized strain fit the bilinear model.
通过动力三轴试验,给出了饱和砂的残余孔隙水压力的全量表达式和不同液化破坏阶段的临界孔隙水压力比的表达式。
Expressions of total residual pore pressure and critical ratio of pore pressure in different failure stages of liquefaction in saturated sand are deduced based on the dynamic tri-axial tests.
该模型可以全面考虑路基材料的剪切模量、阻尼比、孔隙水压力以及永久变形。
The proposed model takes into account the shear modulus, the damping ratio, pore water pressure and permanent deformations of pavement foundation materials.
然而,在水压轴向柱塞泵的研究中,由于水的粘度比油的粘度小得多,因此,惯性项就起着较大的作用。
However, in research of water hydraulic axial piston pump, inertia items should play an important role because the viscosity of water is much less than that of oil.
其中,对于位移插值函数,令其多项式基比孔隙水压力的高一阶,而径向基阶数二者相同。
This method uses one-rank higher polynomial interpolation for displacement than that for pore water pressure, but the rank of radial basis for them is the same.
其中,对于位移插值函数,令其多项式基比孔隙水压力的高一阶,而径向基阶数二者相同。
This method uses one-rank higher polynomial interpolation for displacement than that for pore water pressure, but the rank of radial basis for them is the same.
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