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- Pore Pressure Model of Saturated Soft Clay under Circulating Load 循环荷载作用下饱和软粘土的孔压模型
- pore pressure model 孔压模型
- The model can be used to determine formation pore pressure and the optimum drilling fluid density to stabilize borehole. 利用该模型可确定地层孔隙压力和保持井眼稳定的最优钻井液密度等参数。
- The new corrected model can be applied to predict the pore pressure of the undrilled formation.In this way , the predicting accuracy can be further raised. 根据新修正的模型，对钻头下部未钻开地层的孔隙压力进行再预测，以此来提高地层压力的预测精度，为安全优质地完成钻井作业提供技术保证。
- When the pore pressure is relatively high,the formate is used as a weighting agent to maintain a low-solid mud system. 在地层孔隙压力较高时,则配合使用甲酸盐进行加重,以维持一种性能优良的低固相钻井液体系。
- Besides, the undrained shear strength was increased slightly due to the negative pore pressure. 不排水条件下由于负孔隙水压力的存在，土样的表观强度略有增大。
- In the meantime, the pore pressure also increased with the increase of confining pressure. 同时，孔隙水压力值也随着周围压力的增大而明显增大。
- During the second stage, the excess pore pressure was dissipated under the constant loads. 固结阶段，土体在恒定荷载作用下，超孔隙气压和超孔隙水压逐渐消散而固结。
- A safety supervisory control of building dyke, i. e., pore pressure coefficient B-bar control method is introduced. 摘要简要介绍了一种软基上填筑堤坝施工安全的监控方法-孔压系数B值控制法。
- On the basis of concentric annular fluctUation pressure model, approximate solution of eccentric annular was soluted. 在建立同心环空波动压力的精确模式基础上，求解了偏心环空稳态波动压力的近似解。
- The residual strain is the additional shear strain created with the increase of pore pressure due to cyclic shear under initial shear stress. 残余应变是由于周期剪切引起孔隙压力增长;在初始剪力作用下产生的附加的剪应变.
- IRN artificial neural networks method is used in optimal drilling pressure model initiatively. 首次运用了IRN神经网络建立钻压优化模型。
- The amplitudes of pore pressure increased notably with the increase of cyclic stress ratio, and the residual pore pressure also increased obviously. 当循环应力比增大时，动孔隙水压力变化幅值显著增加，而残余孔压也较大。
- The response processes of drum-steam pressure model built to the main inputs are accordant with its mechanism process. 结果表明,当分别对给煤流量、给水流量和汽包入口水温进行阶跃输入时,汽包压力的响应过程的总体趋势是与其机理相一致的。
- It has two pressure models as handwork and electromotion. 压刀方式有手动、电动两种。
- Formation drillability is related to formation compact degree and pore fracture degree,so NDR can reflect formation pore pressure state. 地层可钻性与地层的压实程度和孔隙破裂程度有关,因此NDR可以反映地层孔隙压力的情况。
- By analyzing the results of the test the authors obtain a experiential curve about the coefficient of seepage, volumetric stress and pore pressure. 并经过分析可知，若其埋藏深度较浅，可以通过增加孔隙压来改善它的渗透性；
- The degradation of undrained shear strength is related to the cyclic strain and accumulated pore pressure produced by undrained clyclic loading. 并将波浪荷载作用使土样内孔压升高，有效应力降低，形成拟超固结现象的理论，应用到土样不排水抗剪强度衰减与平均累积孔压之间关系的分析；
- The model currently includes critical capillary pressure model based on fractional-flow theory, bubble population correlation and Robert-Mack model. 目前主要的泡沫分流酸化模型有 :基于分流理论的临界毛管压力模型 ,气泡总量关系模型和Robert Mack模型。
- The study results show that the pore pressure and axial strain took on a fluctuant increasing process under cyclic shear loading. 研究表明，在循环荷载作用下，孔隙水压力和轴向应变均是一个波动上升的过程。
