Combining the SEM tests, the microstructure features of the cemented soil of nanometer silica fume are concluded.
结合SEM试验，探讨了纳米硅粉水泥土的微结构特点。
A composite activation of fly ash in cemented soil with specific physical and chemical environment has been selected.
在水泥土特定的物理与化学环境中，选出了一种复合型激发剂。
It has great theoretic and engineering meanings to study effect caused by pollution on the strength of cemented soil.
研究污染对水泥土的强度的影响具有重要的理论意义和工程实际意义。
Based on the experiments, strength characteristics of nanometer silica fume reinforced cemented soil have been analyzed.
通过室内试验，探讨了纳米硅粉水泥土的强度特性。
The paper also qualitatively analyzes the effect of effluent's chemical composition on the compressive strength of cemented soil.
文中还定性分析了造纸厂污水中各化学成分对水泥土抗压强度的影响。
The results suggest that nanometer silica fume can greatly improve the unconfined compression strength of cemented soil at various curing periods.
试验表明，一定掺量下的纳米硅粉能够显著提高水泥土的各个龄期强度。
Work behavior of composite foundation of cemented soil pile is studied by 3D non-linear FEM analysis applying post-peak softening model of cemented soil.
考虑水泥土峰值后软化性能对水泥土桩复合地基性能进行了三维非线性有限元分析。
The electrical resistivity of cemented soil increased with the increment of age and unconfined compression strength, whereas decreased with the increment of strain.
研究表明，水泥土电阻率随龄期和无侧限抗压强度的增大而增大，随着应变的增加而逐渐降低；
It has been inferred that high concentration of soluble ions may have restrained the hydration and pozzolanic reactions, thus the strength development of cemented soil.
经推断，很可能是高浓度的可溶盐抑制了水泥土的水化和硬凝过程，从而导致强度降低。
When the depth of excavation is not too deep, reinforced cemented soil retaining walls can be used, where shaped steel is applied in the zone subjected to tensile force.
对于一些开挖深度不大的基坑工程，可以采用在受拉区加入型钢的加筋水泥土挡墙支护形式。
Deep mixing method for soft soil is ineffective while humus content is above a certain value, thus additives should be mixed into cemented soil to eliminate the influence.
深层搅拌法在加固含有腐殖酸的软土时失去了效用，需要添加促进剂来消除腐殖酸的影响。
To use cement mixing pile method to improve the polluted foundation, it is necessary to consider the strength change of cemented soil which is mixed by cement and polluted soil.
要想利用水泥搅拌法改良这些地基，就必须考虑水泥与污染土体搅拌制得的水泥土的强度变化。
Horizontal holes were drilled into the wet soil and liquid nitrogen was pumped in, freezing the water until the tunnel could be dug and cemented.
在湿的土壤中水平的打一些洞，然后泵入液氮对水进行冷冻，直到隧道可以被挖掘和用水泥封住。
Applying the method of mixing some ordinary portland cement into soil sample, structrued soil with different cemented strength and initial void ratio is.
采用在原料土中掺入微量普通硅酸盐水泥的方法制备具有不同胶结强度和初始孔隙比的结构性土样，模拟天然结构性原状土的受力变形性质。
Aiming at finding a new cement additive to reduce the disadvantageous effect of the organic matters on cemented-soil compressive stress, the series of tentative experiments are carried out.
针对有机质对水泥加固土强度的这种不利影响，进行了一些尝试性试验，旨在寻求一种添加剂，用来抵消有机质对强度的这种不利影响。
The resisting slip mechanism of nail and cemented-soil wall is researched on and the theory of the mechanism is also introduced in this paper firstly.
本文首先研究了复合土钉支护中土钉、水泥土墙的抗滑机理，介绍了其机理的理论解释。
The resisting slip mechanism of nail and cemented-soil wall is researched on and the theory of the mechanism is also introduced in this paper firstly.
本文首先研究了复合土钉支护中土钉、水泥土墙的抗滑机理，介绍了其机理的理论解释。
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