开地

The main factors affecting the soil-structure interface behaviors were found experimentally and theoretically, including: 1 the thickness of the interface that is five to six times the average grain size of the soil; 2 the aeolotropy of interface, which is responsible for anisotropic response of the stress-strain response of the interface; 3 two physical states, including crashing and compression of the soil near the structure surface, which govern the stress-strain response of the interface strongly; 4 two shear deformation components due to sliding and constraint of the structure surface relative to the soil respectively, which forms the deformation of the interface; 5 the volumetric strain due to dilatancy, which is found to be composed of a reversible dilatancy component and an irreversible dilatancy component. 4. A unified constitutive model of the interface, based on new elasto-plasticity damage theory, was developed. It was confirmed to be effective for the conditions considering monotonic and cyclic shearing, coupling effect of shear and volumetric strains, evolution of physical state, micro-structure aeolotropy of the soil and the resulting aeolotropy of the interface as well as the three normal boundary conditions stated above. 5. 2D and 3D finite element formulations of the present model were derived and incorporated into the FEM codes. They were applied to the evaluation of practical engineering problems with different typical interfaces between soil and structure. The new model was shown to be reasonable and effective.

确定了粗粒土与结构接触面厚度约为5～6倍的平均粒径，首次揭示了接触面的细观结构异向性以及由此所引起的宏观剪切异向性，发现了在单调和往返剪切荷载作用下土颗粒破碎和剪切压密两种物态变化机制共同支配着接触面力学性质的变化，通过细观分析证实了接触面的变形可分解为一般同时发生的土与结构交界面上的滑移变形以及结构面位移约束范围之内土体本身的剪切变形两部分，观测到接触面受剪时表现出明显的相对法向位移，并可分解为可逆性和不可逆性两个分量；(4)建立了第一个能够统一地描述单调与往返剪切特性、剪应变与体应变耦合特性、细观结构和宏观剪切异向性以及土颗粒破碎等物态变化特性的土与结构接触面弹塑性损伤本构数学模型，并采用多种法向边界条件复杂加载路径的试验成果验证了新模型的合理性和有效性；(5)提出了新模型的二、三维有限元格式并结合实际边值问题进行了应用计算分析，比较了不同接触面本构模型对计算结果的影响，证实了新模型及其有限元格式不仅能够合理地描述土与结构接触面的主要力学特性，还能够较好地反映土体与结构物在接触面处的滑移、脱开等不连续现象。

And starring these tiers of leaves were white lotus flowers, alluringly open or bashfully in bud, like glimmering pearls, stars in an azure sky, or beauties fresh from the bath.

层层的叶子中间，零星地点缀着些白花，有袅娜地开着的，有羞涩地打着朵的；正如一粒粒的明珠，又如天里的星星。

These tiers of leaves were white lotus flowers, alluringly open or bashfully in bud,like glimmering pearls, stars in an azure sky, or beauties fresh from the bath. The

零星地点缀着些白花，有袅娜地开着的，有羞涩地打着朵儿的；正如一粒粒的明珠，又如碧天里的星

And starring these tiers of leaves were white lotus flowers, alluringly open or bashfully in bud, like glimmering pearls, stars in an azure sky, or be auties fresh from the bath.

层层的 叶子中间，零星地点缀着些白花，有袅娜地开着的，有羞涩地打着朵儿的；正如一粒粒的明珠，又如碧天里的星星，又如刚出浴的美人。

And starring these tiers of leaves were white lotus flowers, alluringly open or bashfully in bud, like glimmering pearls, stars in an azure sky, orbeauties fresh from the bath.

层层的叶子中间，零星地点缀着些白花，有袅娜地开着的，有羞涩地打着朵儿的；正如一粒粒的明珠，又如碧天里的星星，又如刚出浴的美人。

Background is that the red peach green leaves, although they have a shallow deep color, size, a different, but they are quietly absorbed the air, sunlight and water, the supply of beautiful flowers, so that the flowers was a red, open-yan.

衬托着红花的是那桃形的绿叶，虽然它们的颜色有深有浅，大小个不相同，但是它们都默默地吸收着空气、阳光和水分，供给那美丽的花朵，让那花儿开得红，开的艳。

When the companies were thus arrayed, each under its own captain, the Trojans advanced as a flight of wild fowl or cranes that scream overhead when rain and winter drive them over the flowing waters of Oceanus to bring death and destruction on the Pygmies, and they wrangle in the air as they fly; but the Achaeans marched silently, in high heart, and minded to stand by one another.

其时，阵势已经排开，每支队伍都有首领管带，特洛伊人挟着喧闹走来，喊声震天，恰似一群野生的鸿雁，疾飞的鹳鹤，发出冲天的喧喊，试图逃避冬日的阴寒和暴泻不止的骤雨，尖叫着展翅俄开阿诺斯洋流，它们将在黎明时分发起进攻，使后者尸横遍野。但是，阿开亚人却在静静地行进，吞吐着腾腾的杀气，人人狠了心肠，决心与伙伴互为帮援。

If only I could take an endless drive along a gorgeous coastline accompanied by a soul-stirring melody.

如果可以，我愿开着车，听着伤感的曲子，沿着美丽的海岸线，没有目的地地开下去

Stagger double discs opener is researched to solve the problems of blocking easily and pushing out stubble to make covering difficult for sharp-angled opener.

错开式双圆盘开沟器主要是为了解决尖角开沟器在大玉米根茬地免耕播种时，易挂茬造成堵塞，或挑出根茬造成覆土不足等问题而研究的。

The relation between the relative Young′s modulus of the models and the anisotropic size ratio was obtained and compared with theory pred...

结果表明，建立的开孔和闭孔随机泡沫模型能较好地反映泡沫材料的各向异性力学性质；且开孔和闭孔泡沫的各向异性力学性能均与泡沫材料的相对密度有关。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。