1) subway vibrational loading
地铁振动荷载
1.
In the paper,the dynamic elastic modulus of soil is determined by laboratory dynamic triaxial tests,and the deformation of soil around subway tunnel under subway vibrational loading is computed with numerical simulation,then,the ground subsidence induce.
利用室内动三轴试验结果确定土体的动弹性模量,采用数值模拟的方法计算饱和软粘土地区地铁振动荷载作用下隧道周围土体的变形,由此进一步计算出地铁振动荷载作用下引起的地面沉降量。
2.
After the subway tunnel that is in or across the stratum of saturated soft clay is put to use,the excessive settlement occurs along axes in a large degree because the microscopic structure of the saturated soft clay is deformed and destroyed and the residual strain is produced under the subway vibrational loading.
位于或穿越饱和软粘土层中的地铁隧道在运营之后,沿轴线产生较大的沉降量,很大程度上与饱和软粘土在地铁振动荷载作用下土体微观结构的变形和破坏、发生残余变形有关。
2) subway load
地铁荷载
1.
In order to explain macroscopical deformation of saturated soft clay under subway load,the cyclic triaxial test,mercury intrusion porosimetry(MIP) and scanning electron microscopy(SEM) are conducted and the correlatability between microstructure change and macroscopical deformation of saturated soft is analyzed.
针对地铁荷载下饱和软黏土的宏观变形,从微观试验出发,采取定量化的试验手段,以上海地区地铁行车荷载作用下的饱和软黏土为研究对象,将其宏观变形与各微观结构参数进行相关性分析。
3) vibration load
振动载荷
1.
Effect of soft starting time on vibration load of belt conveyor driving system;
软起动时间对带式输送机传动系统振动载荷的影响
2.
Influence of vibration load of oil pumping unit on the camber wear of rod tube and its prevention.
抽油机井振动载荷对杆管偏磨的影响与防治
3.
It also studies effect of swabbing parameter on vibration load of roof bolt,providing theoretical basis for decreasing vibration of roof bolt and studying mechanical behaviour of roof bolt of rod pumped well.
根据振动理论,采用有限元方法,在考虑抽油杆柱纵向振动、横向振动和扭转振动的耦合条件下,研究了抽油杆柱在工作中的振动规律,并研究了抽汲参数对抽油杆柱的振动载荷的影响,为抽油杆柱的减振及研究抽油机井中杆柱力学行为奠定理论基础。
4) vibration load
振动荷载
1.
Model of pore water pressure development in saturated soft clay around a subway tunnel under vibration load;
地铁振动荷载下隧道周围饱和软黏土的孔压发展模型
2.
Dynamic response of saturated soft clay around a subway tunnel under vibration load;
地铁振动荷载作用下隧道周围饱和软黏土动力响应研究
3.
Based on the two typical kinds of undisturbed silt clay and silty clay in the Bohai subsea, this paper studies the essential change relationship of the clay strength characteristic under the action of vibration load and proposes the method to determine strength attenuation coefficient.
本文针对渤海海底两种典型的原状淤泥质粘土及粉质粘土,研究了振动荷载作用下土强度特性的基本变化关系,建议了确定强度衰减系数的方法。
5) vibrating load
振动荷载
1.
Structural degrade analysis of frozen soil under vibrating load;
振动荷载作用下冻土结构弱化机理研究
2.
Based on track vibrating acceleration data measured from tunnels of Shanghai Metro Project, the numerical simulations by using 3D and 2D FEM are carried out in order to understand the dynamic response of overlap tunnels in close proximity to Nanpu Bridge Project due to the train抯 vibrating load.
采用上海地铁某区间隧道现场实测振动加速度数据,对南浦大桥近距离交叠隧道在列车振动荷载作用下的动力响应进行了有限元数值模拟。
6) vibration loading
振动荷载
1.
Response characteristics of pore pressure in saturated soft clay to the metro vibration loading;
饱和粘性土体中孔隙水压力对地铁振动荷载响应特征分析
补充资料：点振子振动和点电极振子振动
分子式：
CAS号：
性质：又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内，形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积，且与厚度有适宜的匹配关系。在交变电场作用下，沿厚度方向产生振动，其振幅随着至电极中心距离的增加，呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄，有时考虑到压电陶瓷自身强度太低，可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。
CAS号：
性质：又称点振子振动和点电极振子振动。振动能量绝大部分集中在点电极范围内，形成“能量封闭”的振动模式。振子电极面远小于压电陶瓷片的总面积，且与厚度有适宜的匹配关系。在交变电场作用下，沿厚度方向产生振动，其振幅随着至电极中心距离的增加，呈指数式衰减。谐振频率与压电陶瓷片的厚度有关。为提高频率通常将压电陶瓷片磨得很薄，有时考虑到压电陶瓷自身强度太低，可用特制的陶瓷片作垫片来防止压电陶瓷片损坏。常用于高频场合。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条