土体

Aimed to provide a theoretical basis for reasonable arrangement of Cryptomeria japonica the relationships between the growth of the tree and the rock soils were studied.

通过对日本柳杉的生长与土体关系的研究，为其合理布局提供理论依据。

As reinforced by cement, the soil's physical and mechanical properties could be improved much better. Meanwhile, the cement soil is economical, applicable and convenient to construct and it has many other merits. Hence, it applies far more in areas of base and slop stabilization, curtain for cutting off water, deep foundation ditch support structure and other projects.

因为土体经过水泥加固后，其物理力学性质能得到较好的改善，同时水泥土还具有经济适用、施工方便等优点，所以在地基加固、止水帷幕、边坡加固与稳定、深基坑支护等方面得到很广泛的应用。

Theoretical equations by analyzing earth pressure balance shield cutterhead′s cutting the ground are deduced and the numerical model is set up.

通过对土压平衡盾构掘进机刀盘切削土体进行理论分析，建立数学模型，得出相应计算公式。

Derived from Mindlin solution, the deformation formula induced by torque between cutterhead and soil is obtained by integration and coordinate transformation, which leads to the total deformation formula induced by shield tunneling.

基于盾构施工过程，利用弹性力学Mindlin解，通过坐标变换经积分推导刀盘与土体之间摩擦力所引起的地面变形计算公式，并得到盾构施工引起的总地面变形计算公式。

In the numerical analysis, us-pw formation of dynamic consolidation equation and cyclic elasto-plastic constitutive model is used. Using updated Lagrangian method, large deformation of liquefied ground is considered.

在数值分析过程中，采用us-pw形式的动力固结方程和循环弹塑性本构关系，并引入更新的拉格朗日格式以适应土体液化后的大变形。

Because the kinematically-admissble cyclic strain rate field required in kninematical-type theorem of shakedown analysis is rather difficult to be constructed, shakedown analysis based on kinematcal theorem cannot be directly applied.

在竖向载荷与水平载荷共同作用下，研究了地基土体的强度特性与土层分布特征对地基承载力的彤响，对地基的极限载荷与安定戳荷进行了比较分析，为全面、综合地评价非均质地基的稳定性提供了有益的参考。

Based on definitions of stress and strain, and the D'Alembert's principle, stress and strain of soils at various depths were derived from the data of acceleration, displacement, as well as excess pore pressure measured in the test. The stress paths and stress-strain relationships of saturated sand during the shaking event, and their connection with development of excess pore pressure were revealed.

根据应力和应变的定义以及达朗贝尔原理，由试验观测的土体加速度、位移和孔隙水压力数据直接推导得到不同深度处砂土的应力和应变，揭示了振动过程中饱和砂土的应力路径和应力-应变关系演化过程，以及与超静孔隙水压力发展的联系。

The effect of the variation of the load on area replacement ratio and deformation modulus in different depth was considered.

该方法适用于不同布桩方式下桩土应力比的求解，且能够反映桩、土体变形模量和面积置换率随加载而不断变化的特点。

Deformation modulus: the ratio of the vertical load to the vertical strain is called as Deformation modulus.

土的变形模量：土体在无侧向约束条件下，竖向应力与竖向应变的比值。

On the other hand, higher cyclic stress level and initial deviator stress accelerate the degradation of stiffness.

在试验的基础上推导了反映土体刚度软化规律的经验公式，得到了萧山软黏土的破坏刚度比。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐