泥土的

As a new type of building material, the cement soil is composed of cement, soil and water It has the characteristics of not only soil engineering, such as the optimum water content, the maximal dry unit density, but also concrete, such as hydraulicity and strength increasing with time etc.

水泥土作为一种新型建筑材料，它是由水泥、土料和水三种材料构成，它不仅具有土工的一些特点，诸如最优含水量、最大干密度；同时也具有混凝土的某些性质，诸如水硬性、强度随时间增长等；在大量的试验基础上，对水泥土的性能进行分析并得出水泥土的一些性能特点，有助于在岩土工程中的广泛应用。

The main results of the study are obtained as follows:1 In order to analyze and study the physical and mechanical characteristics of Lianyungang marine soft clay deeply, large numbers of basic mechanical characteristics tests and tri-axial shear tests are completed.2 In order to investigate the loaded and failure characteristics of the cement-soil, the cement-soils for the different ratio and different cure time are studied in the laboratory, and their unconfined compression tests and tri-axial shear tests are performed.3 Based on the solution of one-dimension consolidation, the one-dimension consolidation of the double-layered foundation is solved for two-grade loading in virtue of transcendental equation; Simultaneously, the one-dimension consolidation of the double-layered foundation is solved by means of Laplace transform for two-grade loading, and Stehfest numerical transform is applied in Laplace's inverse transformation; Furthermore, according to the practical foundation shapes, the consolidation models of the soil between piles and the substratum are built and solved respectively.4 The effect of each parameters on the consolidation of the double-layered foundation is discussed, and the solution of load transfer method for double-layered foundation is applied in A1-A4 section of Lian-Xu expressway. The results of calculating settlement of the double-layered consolidation theory are basic agreement with the measuring settlement results.

取得了以下几方面的研究成果：1针对连云港海相软土进行一维固结和三轴剪切试验，深入分析连云港海相软土的物理力学特性。2模拟水泥土搅拌桩施工，在室内制备不同配比、不同龄期的水泥土试样，并进行无侧限抗压试验和三轴剪切试验，揭示水泥土的受力特性及破坏特性。3运用超越方程，以双层地基一维固结解析解为基础，推导出二级加荷条件下双层地基的固结解析解；同时，通过荷载传递法并借助Laplace变换对双层地基的固结问题进行了数值求解；此外，根据实际的地基结构，建立了桩间土和下卧层的固结模型并分别进行求解分析。4分析探讨了双层地基中各参数对双层地基固结的影响程度，并运用荷载传递法的解答计算了连-徐高速公路A1-A4标水泥土搅拌桩处理段的六个断面，计算结果与实测数据有较好的一致性。

5The failure strains of cement-soil are calculated, and initial tangent modulusand average deformation modulus of cement-soil with same cement mixing content arecalculated. Then fit them with strength. The relation between ultimate deformationmodulus and strength, cement-soil of same curing period, is fitted too. The conclusionis that deformation modulus of cement-soil with some stock-still time are close to thesewhich compacted without stock-still time.

5计算分析了水泥土的破坏应变；计算了相同水泥掺入比水泥土的初始切线模量和平均变形模量，将它们与抗压强度的关系进行拟合，将同龄期水泥土的极限变形模量与抗压强度进行拟合，结果表明，一定静置时间的水泥土的变形模量与t=0h的水泥土的变形模量相差不大。

The relationship of the electrical resistivity with various parameters and unconfined compression strength is studied using the resistivity method.

结果表明，受H2SO4侵蚀后，水泥土电阻率、孔隙水电阻率、水泥土抗压强度均随着溶液浓度的增加而减小，而水泥土的结构因子和重度均随着溶液浓度的增加而增加，水泥土抗压强度与水泥土电阻率成正比。

The long-term unconfined compression strength of cemented soil is the important design parameter of cemented soil mixed pile composite foundation.

水泥土的无侧限长期抗压强度是水泥土搅拌桩复合地基设计的重要参数。

We've all had to eat our peck 啄食 of dirt 泥土 in the sacred name of news.

以新闻神圣的名义，我们都在吃自己啄食的泥土。

With the further studies on engineering properties, modified mechanism and work performance of CSS added various additives, CSS has been extensively applied in the ground treatment, slope protection, bracing foundation pit, injection and ponding engineering, etc.

随着对不同外加剂水泥土的工程特性、改性机理等理论的不断探讨和研究，水泥土被广泛应用于地基处理、边坡加固、基坑围护、注浆堵水等工程中。

The results show that the mechanical properties and endurance of the composite cement soil are significantly better than that of ordinary cement.

试验结果表明：复合水泥土的力学性能及耐久性能均明显优于普通水泥土。

Experimental study of its macroscopical mechanics behavior and analysis of asymptotic homogenization of cement- soil and Cement Mixing Pile are the main work of this dissertation.

本文的主要工作是对水泥土的力学性能进行试验研究，并用均匀化方法分析水泥土的相关力学性能，同时用把相关的结论运用到水泥土复合地基的计算中，总结了水泥土试验及其运用均匀化方法的有关规律。

The Blue Nile mud has a different isotope signature from that of the White Nile.

青尼罗河里的泥土带有一种不同于白尼罗河泥土的同位素。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。