principal vertical

Tidal pumping and vertical shearing are the principal factors leading to distinctions. Here Comes the Spring tide

潮泵作用和垂向切变作用是造成两者差别的主要原因。咸潮来了

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The conclusion is that the size of terrestrial stress mainly is vertical principal stress maximum and the fracture of hydraulic fracturing is vertical.

最大水平主应力方向以近东西向为主，水力压裂裂缝的延伸方向也以近东西向为主；

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Computation shows that the "tidal pumping" effect has a significant role in the suspended sediment transport within the turbidity maximum of the Changjiang Estuary. Tidal pumping and vertical shearing are the principal factors leading to distinctions.

计算表明，潮泵效应在长江河口最大浑浊带悬沙输移中起着重要的作用。潮泵作用和垂向切变作用是造成两者差别的主要原因。

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The results show that vertical stress is equal to overburden stress at shallow level. Maximum principal stress is sub horizontal stress in the NE direction.

结果表明：显德汪煤矿垂直应力近似等于上覆岩层的自重应力，最大主应力为北东方向，且为近水平压应力。

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