The distribution of soil grains and pores in soil mass directly influence the permeability of soil mass.
土体颗粒和孔隙分布直接影响土体渗透性大小。
The permeability of soil showed downtrend along with the period of tillage prolonged during the whole infiltration process.
在整个入渗过程中，土壤水分入渗性能随着开垦年限的延长呈下降趋势。
After planting alfalfa, the soil aggregate was increased and the permeability of soil moisture and aeration of soil was enhanced.
种植苜蓿能增加土壤团聚体含量，提高土壤通气透水能力。
By reducing the permeability of soil at the bottom of pit and selecting optimal dewatering depth, the settlement of ground surface can be well controlled.
采用降低坑底土层渗透性的措施和选择最佳的降水深度能有效地控制坑外地表的沉降。
IFCO BAT system is a set of in-situ test system, which can gain the pore water pressure of ground and in-situ permeability of soil quickly and accurately.
IFCO BAT系统是一套能快速、准确获取地基孔隙水压力和原位渗透系数的先进测试系统。
The results showed that permeability of soil in karst area was effected by the soil structure, grain size composition, mineral composition and plant root.
研究结果表明，喀斯特地区土体渗透系数受土体结构、粒度成分、矿物成分以及植物根系影响。
The higher the clay particle content in DCS was, the longer the time needed for the development of GPDS was, and the worse the permeability of soil mass was;
若土体中粘粒含量高，则形成管道排泄系统所需的时间长，土体的渗透性也相对较低，反之则所需的时间短且渗透性高；
By orthogonal tests, the influence of three factors on the coefficient of permeability of soil-rock-mixture, the significance of different factors was determined.
通过正交试验确定了3种因素对土石混合体渗透系数的影响顺序及各因素的显著性水平。
The importance to monitor the pore water pressure and to study the permeability of soil under the north anchorage of Jiangyin Yangtze River Highway Bridge is analyzed firstly.
以江阴长江公路大桥北锚碇为例，首先阐述了锚碇地基土孔隙水压力观测和渗透性分析的意义。并根据江阴长江公路大桥地基基础安全监测成果，分析了孔隙水与长江水的水力联系。
The test results show that: (1) For low degree of compaction and moderate permeability of soil, sudden-ly landslides will occur at toe of slope due to the seepage of groundwater.
试验结果指出：(1)压实度较小、渗透性较佳之土壤，因地下水渗透，在坡脚产生瞬间坍方。
OADC with consideration on the gradual variation of horizontal permeability of soil in disturbed zone is greater than the one without considering the horizontal permeability variation.
在线性加载的情况下，考虑了扰动区土体水平渗透系数抛物线变化以及桩周土体的径、竖向组合渗流，给出了该问题的控制方程以及解答。
When GPDS developed in DCS, the permeability of soil mass would become dramatically larger, and the seepage force of groundwater and pore water pressure on sliding surface would reduce;
管道排泄系统的存在使边坡具有良好的渗透性，能有效减小坡体中的渗透力和潜在滑面的孔隙水压力；
The magnitude of load, the pre-consolidation pressure of soil, as well as the variations of compressibility and permeability of soil, all has significant influence on the consolidation behavior.
荷载的大小、先期固结压力、土体压缩性和渗透性的变化等对地基的固结性状均有明显影响。
The permeability of a soil is important for calculations of underground flow.
土的渗透性对于地下液流的计算很为重要。
Soil permeability is an important index of evaluating water source conservation function.
土壤入渗性能是评价土壤水源涵养功能的重要指标。
Straw mulched could improve soil granular structure, and increase the content of water-stable aggregates, so the ability of permeability, fertilizer and water conservation got improved.
秸秆覆盖还田促进土壤团粒结构形成，提高了土壤水稳性团聚体含量，从而改善了土壤通透性和保水保肥性。
If the infiltration intensity is less then the saturated permeability coefficient, the surface soil finally reaches to an unsaturated infiltration stage instead of saturated infiltration stage.
当降雨强度小于土体的饱和渗透系数时，表层土体达不到饱和状态，最终的稳定入渗只能达到一个非饱和入渗状态。
Soil permeability is one of the important physical properties of soil and important component of the ecological benefits.
土壤渗吸性能是土壤重要的物理特征之一，是生态效益的重要组成部分。
Based on the equation of soil water feature curve and the relationship between soil water feature curve and permeability function, the permeability function equation of unsaturated soil is derived.
从非饱和土土水特征曲线方程出发，根据渗透函数和土水特征曲线的关系，推导出了非饱和土渗透函数方程。
Effective compaction can improve the bearing capacity of the soil, improve not permeability.
有效的压实可以显著改善土壤的承载能力，提高不渗透性。
For complexity and diversity of unsaturated soil behaviors, there lies a great difference in permeability characteristics between unsaturated soil and saturated soil.
由于非饱和土的复杂性和多变性，其渗透特性明显不同于饱和土，并且试验难度较大。
The soil and water loss violently, the main reason was human's destroy on natural vegetation, thus it thoroughly destroyed the permeability and anti-scouring of soil.
目前黄土高原水土流失剧烈进行，其主要原因就是人为活动对天然植被的无情破坏，从根本上破坏了土壤的入渗和抗冲性能。
However, the effect of its permeability and water-maintaining in loam soil, sandy loam and vermiculite was not so obvious as in soddy soil.
信德瑞在壤土、砂土和蛭石中的渗透、保水效果不如在草炭土中明显。
Measurement of soil grain and pore size distribution, observation of soil microstructure and permeability test are used to study soil structure and permeability.
本文介绍本院野外试验场包气带土壤结构和渗透性参数实验分析的主要方法及其结果。
The analysis results also show that foundation pit tends to fail in anisotropic soil when horizontal permeability coefficient is larger than that of vertical.
对比各种分析结果，当水平向渗透系数大于竖向渗透系数时，基坑最容易发生渗透破坏。
The method can be used for measuring the vertical saturation permeability coefficient of the soil outdoors quickly and accurately.
该方法可用于野外迅速准确的测定土壤垂向饱和渗透系数。
By using this model the soil-water characteristics and permeability coefficient of unsaturated soil are deduced and expressed in fractal dimension and air-entry value.
本文建立了土体孔隙分布的分形模型，导出用分维和进气值表示的水分特征曲线和渗透系数的理论表达式。
Different precipitation patterns and permeability coefficient of roadbed soil were analyzed by the calculation examples, the variation laws of changes of slope safety factor was summarized.
通过算例就不同降水模式、不同渗透系数的路基土进行对比分析，总结了边坡安全系数的变化规律。
Different precipitation patterns and permeability coefficient of roadbed soil were analyzed by the calculation examples, the variation laws of changes of slope safety factor was summarized.
通过算例就不同降水模式、不同渗透系数的路基土进行对比分析，总结了边坡安全系数的变化规律。
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