| 1. | Study on hydraulic gradient of inclined pipeline
倾斜管道水力坡度的研究 |
| 2. | Critical hydraulic gradient
临界水力陡度 |
| 3. | Effect of initial hydraulic gradient on one - dimensional consolidation of saturated clays
起始水力梯度对饱和黏土一维固结的影响 |
| 4. | Especially the study on the hydraulic gradient in the inclined pipes is nearly blank
尤其是各浓度下，倾斜管道中的水力坡度研究几近空白。 |
| 5. | Slope pipes are used in the actual production widely , especially in the long - distance pipeline transportation , so it has the practical value to study their hydraulic gradient
可实际生产中倾斜管道是广泛存在的，特别是在长距离管道输送中，故研究其水力坡度是有现实意义的。 |
| 6. | Based on the nonlinear relationship of permeability velocity and hydraulic gradient , four non - darcy seepage models were summarized to investigate the permeability behavior of soft soil under consolidation pressure
摘要针对传统固结理论不能考虑非达西渗流的不足，研究了渗流速度与水力梯度的非线性关系。 |
| 7. | The hydraulic gradients of settling slurry flow transported in three kinds of moving states , i . e . suspension , saltation , or partially suspension were investigated , based on analyzing the changes of solid particles and water in momentum , velocity and their mass related to momentum exchanging over the acceleration period of the solid particles
从固体颗粒加速期间清水与固体颗粒的速度变化、动量传递、相关质量等基本问题分析入手，研究了沉降性浆体在水平管道内流动时其固体颗粒在3种流动状态下的水力坡度，提出了沉降性浆体在水平管道内流动的机理模型，进而用该模型对一些输送条件下的沉降性浆体的水力坡度进行了计算。 |
| 8. | Could there exist another possibility for the south boundary of the system as follow : the rainfall infiltrates in the outcrop carbonate - mountain area of western , and moves towards south and deeper along carbonate rocks , then moves upper through the overlain tertiary system ( n ) with a thickness of 400m ( instead of running off to the springs and yellow river through a long approach of least hydraulic gradient ) , and then mainly transforms into the horizontal drainage in the loess layer of quaternary , finally drains in lu - botan depres sion
并且提出，关于对系统南界的认识，是否存在另一可能：即在西部碳酸盐岩裸露区大气降水入渗后，沿碳酸盐岩向南向深部运动，然后，并非在极小的水力坡度驱动下长距离地向东部黄河、泉群径流排泄，而是通过上覆厚度约400m的第三系向上运动，继而主要在第四系黄土层中转为向南水平排泄到卤泊滩。 |
| 9. | Based on this , the upper controlling index of soil water content is 80 . 4 % and the days of waterlogged and salinization tolerance is 3 . 2 days . the moisture and salinization movement mathematical model in the field under subdrainage condition is based on the assumption of neglecting the effects of horizontal hydraulic gradient , it can analogy the changes of soil water content and salinization which are changed with times and depth
论文在忽略水平方向水力梯度影响的假定下建立了排水条件下麦田水盐运移模型，模拟土壤水盐含量随时间、空间的变化情况。经与实测资料对比发现，计算值与实测值较为接近，故该模型及参数的确定是合理的，可用于预测麦田水盐的动态变化。 |
| 10. | On the basis of published research of experts and scholars , relations among the velocity of water , that of solid particles and that of settling slurry have been established by the analysis of momentum transmission between water and solid particles in the upward inclined pipeline . then the calculation formulae for the upward - inclined - pipe hydraulic gradient are derived
本文在系统总结现有专家学者的研究成果基础之上，通过分析向上倾斜管道输送中清水与固体颗粒的动量传递过程，从动量守恒的角度建立了清水速度、固体颗粒速度和浆体流速之间的关系，进而推导出了向上倾斜管道输送的水力坡度计算公式。 |
