Research on Water Permeability Evaluation Index and Testing Methods of Geosynthetics

土工合成材料 渗透 性能评价指标及测试方法研究

Methods as following can be used to calculate water productivity by determining mud filtrate resistivity residual oil saturation and relative water permeability : 1 . The seepage theory is introduced to solve the log evaluation problems ;

针对这一问题提出确定泥浆滤液电阻率、残余油饱和度和油、 水相对 渗透率来计算水淹 层产水率的方法。把渗流理论引入到测井评价中来；

Pervious concrete has a good air and water permeability .

透水混凝土具有良好的透气 性 和 透水 性。

Through the experiment we obtain the relationship between coefficient of air permeability and coefficient of water permeability .

通过试验得出了 渗气系数与渗透系数的相关关系。

It also indicates that the tailings dam is stable and it will be favorable for the stability of the tailings dam if the water permeability of initial dam is good .

这也说明该尾矿坝稳定性较好，若初期坝的 透水 性好，则对整个尾矿坝的稳定是有利的。

For unsaturated soils there exist a correlation between coefficients of water permeability and air permeability .

非饱和土 孔隙 水、 气处于同一个系统内， 渗水系数与 渗气系数间必然存在一定的联系，通常渗 气 系数 易于 测定，而渗水系数难以准确测定。

Then factors that effect cement relative permeability oil and water permeability are studied .

提出了提高或降低水泥石绝对 渗透率的方法。

No-fines large porosity concrete which was easy to be constructed and with large porosity high strength low density good water permeability was applied to Xilinhe Bridge .

将易于施工、孔隙率大、强度大、密度小、 透水 性好的无砂大空隙率混凝土应用于惠州西林河大桥台背回填区。

This paper studied the effects of the filler-asphalt ratio and the gradation on mechanical properties and water permeability of OGFC .

试验研究了粉胶比和集料级配对开级配沥青混凝土（OGFC）力学性能和 透水 性的影响。

The requirements in the design of asphalt mixtures considering skid resistance and water permeability is put forward .

分析了沥青混凝土的表面抗滑与渗水 性能 的 影响因素，并找出了抗滑性能与 渗水 性的关系，提出了沥青混合料设计的基本要求。

Analysis on Water Permeability and Structure Parameter for Woven Filter Cloth

机织滤布 透水 性与织物结构参数关系的分析研究

Testing methods for water permeability of geotextile

土工布制品的 透水 性试验法

The pore water permeability coefficient of unsaturated expansive soil is controlled by suction cell pressure dry density and degree of saturation of soil samples .

压实膨胀黏土 水 渗透系数受吸力、围压、干密度、饱和度等因素控制。

This sand control agent adheres to rock surface and changes wettability to hydrophilic resulting in increasing of oil permeability and decreasing of water permeability showing the water plugging function of this sand control agent besides sand control .

该防砂剂吸附于岩石表面使得岩石表面的润湿性向亲水方向变化，导致岩心的油相渗透率增加和 水相 渗透率减小，说明该防砂剂不但具有防砂作用还具有堵水功能。

Coarse gravel aggregates of single grain grade and double grain grade are used in the test . The result shows that water permeability and compressive strength of the pervious concrete are related with its porosity ratio .

试验中采用单粒级和双粒级卵石粗骨料，结果表明：透水混凝土的 透水 性和抗压强度与混凝土的孔隙率有关；

There has strong water permeability at the basal bed of stilling basin for flood gate of Xixiayuan hydropower project .

西霞院泄洪闸消力池底部岩层具有较强的 透水 性，因此需在消力池底板下铺设排水管以 降低扬 压力。

The membrane was characterized by pure water permeability porosity bubble point mean pore radius and tensile strength .

通过测试 纯水 通量、孔隙率、泡点、平均孔径、拉伸强度等对膜进行了表征。

Permeability of low-heat cement pavement concrete using water permeability pressure test and rapid chloride penetrability test

水压法与电通量法评价低热水泥道路混凝土 渗透 性

Its thermal decomposition temperature is higher than 400 ℃ . This material also has low water permeability .

其热裂解温度可高于400℃以上，此外，此材料更具低 渗水 性。

And the pure water permeability decrease with increasing of pH. The PP-g-AAc is a switch-intelligence membrane .

膜通量随pH值增大而减小， PP-g-AAc膜是一种pH敏感的具有开关作用的智能膜。

Experiments on Water Permeability and Mechanical Performances of Porous Bituminous Concrete

透水性沥青混凝土的 透水 性能和力学性能试验研究

The soft soil is featured by big viscosity bad water permeability big water content low bearing capacity big settlement and complex soil layers .

软土地基的土质具有粘性大， 透水 性差，含水量大，承载力低，沉降量大，土层结构复杂等特点。

The hole was lined with a steel tube to prevent the walls from falling in . Study of Textile Artificial Vessel Wall Water Permeability and Pore Diameter Distribution

纺织基人造血管管壁 水 渗透 性和孔径分布研究

Results Patients with PICC had no phlebitis and physic liquor exosmosis . Study of Textile Artificial Vessel Wall Water Permeability and Pore Diameter Distribution

PICC置管途径给药无静脉炎及药液外渗；纺织基人造血管管壁 水 渗透 性和孔径分布研究

Aiming at anti-slide performance and anti-seepage performance in pavement performance we measured the texture depth and water permeability coefficient . Finally we researched on interlaminar shear strength between the micro surfacing and pavement using the determined gradation and the optimum emulsified asphalt content .

路用性能测试主要针对抗滑性能和防渗水性能进行了构造深度和 渗水系数的测定。最后，采用确定的级配和最佳改性乳化沥青用量，研究微表处与原路面的层间剪切性能。

So the water permeability is no longer constant but the function of driving pressure gradient .

在宏观上表现为 储 层 的 水 测 渗透率不再是常数，而是 随驱动压力梯度增加而增大的函数。

Water permeability that is hydrostatic pressure is an important index of waterproof fabric .

织物 渗水 性能（即耐静水压指标）是防水织物的重要指标之一。

The permeabilities of leachate and diesel exhibit no obvious changes compared with water permeability indicating that the polymer film of tung oil is stable .

同时采用 渗滤液和柴油进行 渗透试验， 渗透系数无明显变化，表明桐油形成的高分子膜比较稳定，没有被侵蚀或溶解；