1) bifurcate silo
竖井双向
1.
This paper introduces the structural characteristics,technical parameters and the type-selection of the devices for bifurcate silo tubular pump sets,such as the hydraulic models,gear cases,bearings and sealing,and motors,on the basis of type selection and study of bifurcate silo tubular pump sets in Huangmayong Pumping Station.
通过黄麻涌竖井双向贯流泵站机组结构的选型与研究,介绍了竖井双向贯流式机组的(水力模型、齿轮箱、轴承、密封、电动机等设备)的结构形式、技术参数及选型原则,阐述了竖井双向贯流式机组具有结构简单、安装维修方便、安全可靠、装置运行效率高的优点。
2) double-shaft
双竖井
1.
Flow conservation equation and pressure balance equation of double-shaft blow and exhaust ventilation model for highway tunnels are recommended on basis of hydrodynamics in the paper.
以流体力学为基础,建立了公路隧道双竖井送排式通风方式的流量平衡方程和压力平衡方程。
3) vertical shaft
竖井定向
4) vertical drains
竖向排水井
1.
Analytic solution of consolidation equation for soft soil with vertical drains subject to non-uniformly distributed initial pore water pressure;
初始孔压非均布竖向排水井地基固结方程的解析解
2.
The viscoelasic consolidation by vertical drains under time-dependent loading is studied in the paper.
就实际工程中荷载逐渐施加情况下的竖向排水井地基粘弹性固结问题进行了研究 ,给出了相应的解析解 ,根据该解 ,通过编程计算 ,探讨了变载下竖井地基粘弹性固结的一般规律。
5) vertical drain well
竖向排水井
1.
Analysis on viscoelastic consolidation of soil foundations by vertical drain wells considering semi-permeable boundary;
半透水边界的竖向排水井地基粘弹性固结分析
6) bidirectional tubular pump arrangement with silo
双向竖井贯流式水泵装置
1.
Then, the 3D viscous turbulent flow-field within bidirectional tubular pump arrangement with silo was simulated on different operating conditions.
进而模拟了双向竖井贯流式水泵装置内部的三维粘性流场。
补充资料:弹塑性岩体内竖井地压理论
弹塑性岩体内竖井地压理论
ground pressure around shaft in elastic-plastic rock
tonsux一ng yant一ne一shuJ一ngd一yol一}un弹塑性岩体内竖井地压理论(ground pres-sure around shaft in elastie一plastie roek)在表土或软岩中掘进竖井时,若岩体只产生弹性变形,岩体是稳定的,不必计算地压。只有在产生塑性及流变变形时,才需要计算地压;竖井各水平截面上地压不等。按轴对称条件求出竖井周边位移,再求出支护位移公式,将它们联立求解,即可得到竖井地压。也可用图解法找到两条位移与应力关系曲线的交点,该点的纵坐标值即为竖井地压(见图)竖井围岩周边位移公式为: “止 U 竖井变形地压计算图 1围岩位移曲线;z支护特性曲线 a(p。s、n,,+。eos叭)厂(尸。+。.eot,t川一sin,.门导 ZG,匕P。+cicot笋,J式中“。为竖井围岩周边位移,m;a为竖井掘进半径,m;P0为原岩水平应力,重力场条件下,P0一六yI1,MPa;c,为第i层岩石粘结力,MPa;尸b为支护抗力,等于围岩作用在支护结构上的径向压力,但作用方向相反,MPa;笋,为第i层岩石内摩擦角;G.为第!层岩石剪切弹性模量;MPa。 竖井筒形支护特性方程为: l一群2厂bZ+a,尸1。, z,‘一二六舟}头‘-共一一IP,b EL右2一aZx一尸J“”式中u。为支护外半径表面的径向位移,支护与围岩密贴的情况下,“,一“、;E及产分别为支护材料的弹性模量及泊桑比;“为支护内半径,m;b为支护外半径,m;尸二为竖井变形地压,尸。一尸b,MPa。 (高磊)
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