粘土的

A second-order symmetric fabric tensor is introduced to the model, such as the stiffness of the contact planes, the hardening parameter, the dilatant/ contractant coefficient are made dependent of the orientation of the contact plane in order to capture the inherent and stress induced anisotropic behavior of clay.

在上述考虑微结构的饱和软粘土的弹塑性本构模型的基础上将考虑组构的各向异性的二阶组构张量引入接触面上的刚度、硬化参数、剪胀系数等参数中，由此反映材料引起的各向异性和应力引起的各向异性。

With the reduction of SOM content and the elevation of contamination concentration, the difference between PHE and PYE decreases gradually, while B［a］PYE exhibits a significant difference from them. This could be attributed to the high lipophilicity and large molecular size of B［a］PYE, which make the molecule of B［a］PYE to be more easier to be held in the nanopores of clay and the dense region of SOM.

不同多环芳烃SPMD辅助解吸率差别很大，随着土壤有机质含量的降低，以及污染物浓度的提高，菲和芘的解吸差异逐渐缩小，而苯并［a］芘与上述2种多环芳烃的差异很大，主要是由于苯并［a］芘具有高度亲脂性，并且分子较大，造成其容易滞留在粘土的微孔及有机质的致密结构中。

Here is an astounding fact: Neither the worker in the oil field nor the chemist nor the digger of graphite or clay nor any who mans or makes the ships or trains or trucks nor the one who runs the machine that does the knurling on my bit of metal nor the president of the company performs his singular task because he wants me.

这里有一个令人惊骇的事实：不是油田里的工人、不是化学家、不是石墨或者粘土的挖掘者、不是制造轮船、火车、卡车的人、不是运行机器为我身上铁片压花的人更不是铅笔公司的主席为得到我而执行单一的任务。

Unitary linear regression is done between w~e、 w~ρ、 e~ρ、w_L~w_P. For α_v 、 C_ c between w、ρ、 e、 w_P in eastern China, unitary linear regression is done to silty clay as well as multivariant regression with coefficient iteration method and least-squares procedure are done to all kinds of soil, and the two results are compared. Unitary linear regression and multivariant regression are done to c_q、φ、 c_d、φ_d between e and I_P. Unitary linear regression and multivariant linear regression are done to napierian logarithm of q_u between e 、 I_L、 w_P and w_L, then the equations of regression are checked with other parameters.

对物理指标含水量～孔隙比、含水量～湿密度、孔隙比～湿密度、液限～塑限作了一元线性回归；对华东地区粉质粘土的压缩系数、压缩指数和含水量、湿密度、孔隙比及塑性指数作了一元线性回归；对华东地区所有土类的压缩系数、压缩指数和物理性质参数用系数迭代法和最小二乘法作了多元线性和非线性回归，并对两种方法得到的回归结果作了比较；作了快剪强度指标和固结快剪强度指标关于孔隙比和塑性指数的一元线性回归和多元线性及非线性回归；对无侧限抗压强度的自然对数值和孔隙比、液性指数、液限及塑限作了一元和多元线性回归，并用其它工程的参数对回归方程进行了检验。

The research of polymer/layered silicate nanocomposite was introduced detailedly, including the classify, property and the latest research advance. On the basis of consulting the document and the exploratory experiment, the experimental method which first creative preparing poly (acrylonitrile-vinyl acetate)/raontmorillonite nanocomposite by emulsion intercalation copolymerization was established; the structure and property of polyacrylonitrle different molecule weight with inorganic mineral super fine nanocomposite was reseached. The reaction principle of PMMA by photo-initution was explored. The mixture principle with productor condition, property of PE/Clay nanocomposite milt insert was seal prived. By PS/Clay nanocomposite munufacture, the monomer ins-polymerization and polymerial solution was proved.

在查阅文献和探索性实验的基础上，确定采用乳液原位插层聚合方法首先创制了聚/蒙脱土纳米复合材料，利用正交实验得出了最佳实验条件，通过X射线衍射和红外光谱对纳米复合材料的结构进行表征，研究了复合材料的溶解性能，并测定了其溶液的绝对粘度；研究了不同相对分子质量的聚丙烯腈与不同的无机矿物超细粉复合材料的结构与性能；探讨了在蒙脱土中光引发聚甲基丙烯酸甲酯的反应机理；通过聚乙烯与粘土的纳米复合材料制备，探讨了热塑性树脂熔融插层复合机理与最佳工艺条件和复合材料性能关系；通过聚苯乙烯与蒙脱土纳米复合材料制备，验证了单体原位聚合插层和聚合物溶液插层机理。

The results of this study indicate that: 1 the post–surcharge secant secondary compression index decrease with the increase in surcharge ratio; 2 the amended post-surcharge secant secondary compression index also decrease with the increase in surcharge ratio; 3 time at which secondary compression reappears increases with the increase in surcharge ratio; 4 the post-surcharge secondary compression strain rate under the same final load with surcharging and without surcharging have a linear logarithm to logarithm relationship.

根据研究的结果显示：1超载比愈大，后超载割线二次压缩指数所受到的折减愈大，表示对软弱粘土的二次压缩沉陷量改良效果愈好；2修正之后超载割线二次压缩指数亦随超载比的增加而折减；3二次压缩再现时间与超载比的关系显示，增加超载比会延迟二次压缩再现的时间并可将分析结果以一均值曲线表示； 4对后超载应变速率分析发现在相同最终载重，未受超载作用与受超载作用的二次压缩应变速率呈现一双对数的线性关系。

In greywacke, the content of clay mineral often higher than 15%, clay mineral come from former clay mineral in sediments and their transformation. Clay minerals show plasticity. Clay mineral can damage the pore content of reservoir through distorting and filling into pore easily. These reservoir show low pore content and low permeability.

杂砂岩中的粘土矿物主要是沉积原生粘土矿物和原生粘土矿物转化形成的新生粘土矿物，粘土矿物在储集层中主要表现为可塑性，容易压实变形并充填到孔隙当中损害储集层物性，储集层物性主要表现为低孔低渗。

Of this total, 409,000 t were reportedly used in ceramic floor and wall tile (-20.9% compared to 2000); 11.1 Mt in extruded brick (-4.3%); 1.7 Mt in other brick products (-2.9%); 79,900 t in clay drain tile and sewer pipe (+10%); 256,000 t in clay flue linings (-1.2%); 71,400 t in miscellaneous heavy clay products, such as flower pots, roofing tile and terra cotta (-33.9%); and 741,000 t in refractories (+36.3%).

据报道，全美国所销售的球粘土中有58.7万吨，用于制造陶瓷墙地砖（比2000年下降了3.3%），24.7万吨用于制造卫生洁具（下降了3.5%），62600吨用于耐火材料（下降9.2%），20500吨用于制造陶瓷（下降9.7%），13500吨用于制造其它各种陶瓷产品，包括催化剂、电子陶瓷、纤维玻璃、精细陶瓷、餐具、釉和矿物羊毛（下降10.6%）。2001年，美国的普通粘土和板岩产量仅为2320万吨，下降了2.1%，产值约1.29亿美元，其中有40.9万吨用于陶瓷墙地砖生产（下降20.9%），1110吨万吨用于挤压成形砖生产（下降4.3%），170万吨用于其它砖产品（下降2.9%），79900吨用于粘土排水砖和排水管（上升10%），25.6吨万用于粘土烟道衬里（下降1.2%），71400吨用于其它各种重粘土产品，如花盆，屋顶瓦和红泥陶等（下降33.9%）；74.1万吨用于耐火材料（上升36.3%）。

In this paper, the performance of cement lime stabilized soil was studied by means of experimental road tests.

针对上海地区湿软粘土的路基条件和多雨的气候特征，提出采用水泥石灰综合处治路基的技术措施，并对水泥石灰土的路用性能进行了室内试验与现场测试研究。

In the clay-rich B horizon below the leached layer iron compounds accumulate, staining the layer brown and forming an impermeable hard pan that prevents drainage.

淋溶层 A 的下方为富含粘土的淋溶层 B ，该层积累含铁化合物，使得此层为棕色，并形成一个不透水的坚硬板层，阻止了水的排出。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。