查询词典 soil mass

The research into soil microstructure is one of the frontal topics in the soil mass research.

土体的结构性研究是土力学研究中的前沿课题之一。

The point of zero net charge for the meadow brown soil in northeast of China with structural negative charges was measured by three methods: potentiometric titration, mass titration and inert electrolyte titration, showing that for the meadow brown soil which possesses structural negative charges, a PZNC independent of electrolyte concentration exists, and the values of pHPZNC obtained by the above three methods are 2.9, 5.0 and 3.3, respectively.

分别采用电势滴定法，质量滴定法和惰性电解质滴定法测定了荷结构负电荷的东北草甸棕壤的零净电荷点，研究表明荷结构负电荷的土壤依然存在与电解质浓度无关的零净电荷点，三种方法的实验结果分别为2.9， 5.0和3.3。

However, most of the distribution of the earth pressure behind the flexible wall is of "R-shape" when the flexible wall experiencing "drum-shape "movement. Besides, the friction between the flexible wall and the soil is active during "drum-shape" movement, which decreases the deformation of the wall, lowers the application point of the resultant force and makes the development of the plastic in soil mass slow down.

研究结果表明，鼓型变位下柔性挡墙墙后土压力分布形式基本上为R字型；此外，墙土摩擦作用使墙体变位量变小，土压力系数降低，土压力合力作用点下降，塑性应变发展缓慢，从而提高墙体安全度。

When rolling the roadbed, the best degree of compaction is 93%~95%. When taking Aeolian sand for preventing the water rising, the Aeolian sand replacement should be set above water table, which should normally be made at 50~80 cm depth of soil base with 15~20 cm thickness of replacement for medium wet subgrade and 20~30 cm for wet subgrade. When using stabilized soil inorganic binder for prevention and control of the frost damage, the thickness of the binder is about 25 cm The mass proportion of cement, coal and Aeolian is about 6:40:54 and lime, fly ash and aeolian is about 14:30:56. Based on these, comparative evaluation for various preventing and curing measures of the Aeolian subgrade was given.

通过对试验数据分析得到了其冻结规律，采用碾压击实法，其最佳压实度度为93%~95%；采用风积砂换填隔水法，风积砂垫层时位置应在地下水位以上，一般应在土基50~80 cm深度处铺筑，换填厚度在中湿路基为15~20 cm，潮湿路基为20~30 cm；采用无机结合料稳定土防止、防治风积土路基道路冻害，厚度均应在25 cm左右，其中水泥、煤渣、风积土的质量比约为6：40：54，石灰、粉煤灰、土三者的质量比为14：30：56，在此基础上，对各种措施的防治效果进行了对比评价。

However, if inextensible horizontal reinforcing elements are placed within the soil mass, as shown in Figure 1b, these reinforcements will prevent lateral strain because of friction between the reinforcing elements and the soil, and the behavior will be as if a lateral restraining force or load had been imposed on the element.

然而，如果在土体中加入无伸展性的横向加固元素，如图1b 所示，这些加固物会由于加固元素与土体间的摩擦作用而防止横向应变的发生，其性能就如同在加固元素上施加横向约束力或荷载。

The results indicated that the seasonal soil moisture variation could divide into four phases: soil moisture relative stabilization phase, slowly consumable phase, mass consumable phase and resumable phase.

结果表明，该区土壤水分一年内季节性变化可分为土壤水分相对稳定期、缓慢消耗期、大量损耗期、恢复期四个阶段。

This paper synoptically expatiated the development and research actuality of soil dynamics ,summarizing the actuality and development on dynamic constitutive model and dynamic analysis of soil mass,emphasizing on dynamic elastic-plastic model and dynamic elastic-plastic analysis under complicated load.

阐述了土动力学的发展现状及研究进展，综述了目前土体动力本构模型、动力分析现状和进展，以及复杂荷载下的动力弹塑性模型和弹塑性动力分析，其前景广阔。

Soil enzyme and microbe play key roles in the cycle of mass and energy fluxes of soil ecosystem.

土壤酶和微生物在土壤生态系统的物质循环和能量流动方面都扮演着十分重要的角色。

Based on the literature review, this paper analyzes and investigates the development and status of digital image processing techniques in quantitative analysis and associated numerical simulation of the geomaterials. It includes quantitative analysis of particle shapes, quantitative analysis of internal structures of soil, rock, asphalt concretes and cement concrete, quantitative analysis of macro-structures of rock mass in the ground, and numerical modeling and simulation of geomaterials by taking into account their actual internal structures, Based on the review results, the paper discusses the development history and future trend of the utilization of the digital images and associated techniques in soil and rock.

本文在研究相关文献的基础上，分析和研究了数字图像技术在土、岩及混凝土内部结构定量分析和力学数值计算中的发展过程和研究成果，内容包括：单个骨料颗粒形态特征定量分析；土、岩和混凝土内部结构定量分析；岩体结构定量分析中的应用；基于数字图像处理的土、岩和混凝土细观结构力学计算。

This research reveals that dynamic action is the root reason for soil water-erosion, and that law of conservation of mass and energy is the basic principle of soil erosion, and that the coexistence of erosion and sediment is a universal rule of soilwater-erosion.

根据力学和物质与能量原理，对土壤水力侵蚀这一自然地理现象从哲学的高度进行分析，认为水动力作用是土壤水力侵蚀的根本原因；物质与能量守恒是土壤水力侵蚀的基本法则；侵蚀与沉积并存是土壤水力侵蚀的普遍规律。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。