查询词典 soil mass

Soil erosion is the most serious ecological environmental problem in Loess Plateau of China. Unreasonable land use practice is identified as one of the most important reasons for triggering and aggravating soil erosion, and the driving mechanisms for land use change and the relationship between land use spatial pattern and soil erosion are the important aspects for the study about soil erosion.

水土流失是黄土高原地区严峻的生态环境问题，不合理的土地利用是引发和加剧水土流失的重要原因之一，土地利用变化驱动机制和土地利用空间格局与水土流失关系是其研究的重要方面。

The soil potential is in accordance with the pondage stage the variety mutually, The soil potential of the current total from diminish to back up again greatly, just the soil layer is from the top bottom, the water potential of the current value enlarge, the water potential changes to let up, the 100 cm soil layer is as follows almost yearly stable.

土壤水势变化与贮水量三阶段相对应，总体由大变小再回升，只是土壤剖面空间从上而下，水势值增大，变幅减小，100cm土层以下近乎常年稳定。

The assumption of the variable tendency of slip-line in active zone is made based on the numerical results. Combining the slip-line equations and boundaries, the formula of bearing capacity is deduced which can consider the density of soil. The formula of bearing capacity of strip footing on ponderable soil is also deduced assuming that the slip-line field of ponderable soil is the same with that of weightless soil, which is proved to be an upper-limit solution, as its the same with that deduced by the upper-limit method in Prandtl mechanism.

在数值计算结果的基础上，对有重土地基主动区滑移线变化趋势进行了合理假设，根据边界条件和特征线方程求得了条形基础极限承载力的解析表达式，该表达式可以计算考虑土重度的条形基础的极限承载力；获得了不考虑重度对滑移线场影响时(即有重土在普朗特尔滑移线场下)极限承载力的解析表达式，该表达式与普朗特尔机动场对应的极限承载力上限解的表达式相同，这就从理论上证明了在土重度对滑移线场没有影响这一假定前提下得到的极限承载力是一个上限；(3)利用上限定理求解了极限承载力的最小上限。

The results showed that the quantities of bacteria in the petroleum contaminated soil were about 100 times more than that in the non-contaminated soil,the quantities of fungus and ray fungus in the contaminated soil were also extensively more than that in the non-contaminated soil.17 bacteria strains and 11 fungus strains for petroleum biodegradation were screened from the contaminated soils.

结果表明：石油污染土壤中的细菌总数是未污染土壤的100倍左右，其真菌和放线菌数量也明显超过未污染土壤。

Formula. At the same time, the article raised the seismic reduction factor formula for the SSDI system.The paper adopts finite element method based on the ANSYS procedure, and realizes the simulation of soil constitutional relationship through choosing Davidenkov soil model with proper parameters and using restartup method in ANSYS. Then, the procedure makes the soil nonlinearity simulation come true byusing parameter design language of APDL. Element Combin14 is be used to simulate viscoelastic boundary and radiation damping effect. At the same time, it presents integrated damping matrix for considering the coupling of different damping of soil and structure.

文章以ANSYS为计算分析工具和平台，通过对Davidenkov地基模型的研究及其参数的选取，利用ANSYS的重新启动分析方法并采用APDL参数设计语言来编制程序，实现对土体非线性动力本构模型的模拟；同时利用ANSYS中Combin14单元模拟粘弹性边界，以此建立人工边界来模拟辐射阻尼效应；并提出集成阻尼矩阵的方法，解决结构和地基土阻尼不同而导致的阻尼耦合的问题。

Using environmental radionuclide 210Pb to study the soil erosion and sediment had great application value and potential. When the nuclide was settled on the surface with atmosphere, it was absorbed by the soil particle quickly. The soil erosion rate on the scale of 100 years was traced through the remotion of nuclide in soil and its regular distribution nude.

利用环境放射性核素210Pb来研究土壤侵蚀和沉积具有很大的应用价值和潜力，当核素随大气沉降到地表时，迅速被土壤颗粒吸附，通过其在土壤间的移动和有规律的分布模式可以示踪100年尺度上的土壤侵性速率。

On the structural properties of soil-cement mixtures and to expect to obtain important conclusions for soil-cement application not only to the attached construction of on-going project of but to other future soil-cement application where soil-cement, as an alternative to rock riprap for slope protection, is not locally available.

期能获得相关研究成果，以提供执行中之湖山水库计画，在其附属工程方面之应用，或者作为日后其他水库工程计画案，在大坝坡面保护工之抛石材料不易取得时，当作替代方案之规划设计参考。

The experiment being an object of study with south sand loam, making use of this system to that soil conductance to have been in progress with the interrelation between soil moisture content, soil saltness, soil pH value studies.

以南方沙壤土作为研究对象，利用此系统对土壤电导与土壤含水量、土壤含盐量、土壤pH值之间的相互关系进行了试验研究。

Based upon analysis of the factors influencing the compaction quality of backfilled soil such as compaction work ,moisture content of soil and thickness of soil layers,two dry density inspection methods are introduced: ring simpler method and sand cone method,in order to ensure compaction quality of backfilled soil.

介绍了工程特点，对压实功、土的含水量和每层铺土厚度等影响回填土压实质量的因素进行了分析，并介绍了环刀法和灌砂法两种回填土干密度的检测方法，以确保回填土的压实质量。

The means of expression on types of soil erosion and grading of intension is the paper medium long-term in soil erosion scopes. Quantitative study aims at the aspects of soil erosion mechanism and erosion quantity of small catchment or sidehill before. In the course of possession of the digital information on soil erosion figures, the integration of RS and GIS technique is used based on ARC/INFO.

在ARC/INFO软件平台的支持下，采用遥感一地理信息系统一体化的土壤侵蚀强度等级制图方法，获取了土壤侵蚀的图形数字信息，运用图形数字信息对土壤侵蚀景观结构进行了计算。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。