The construction feasibility of continuous-double arch was validated by numerical simulation when tunnel segment was dilapidated to construct single connecting tunnel between two shield tunnels.
应用数值模拟方法,研究了在盾构法修建隧道的基础上拆除管片修建渡线隧道中双联拱段方案的可行性,研究表明双联拱方案是可行的;另外,拆除管片并开挖时、施做中墙时均会引起地面较大的沉降。
The construction plan of double-joined arch is validated using numerical simulation when dilapidating segments to construct single connecting tunnel between two shield-driven tunnels in this paper.
应用数值模拟方法研究了在盾构法修建隧道的基础上拆除管片修建渡线隧道中双联拱段方案的可行性,研究表明双联拱方案是可行的;另外,拆除管片并开挖时、施做中墙时均会引起地面较大的沉降,施工完毕后会在双联拱右部与原盾构隧道之间产生塑性区,为此提出了施工建议。
The parameters about the electronic structure,bond length,energy of frontier orbital of these species were determined.
在Gaussian03软件中,采用DFT中的B3LYP/6-311G++(d,p)方法对四氢呋喃、仲氧鎓离子以及叔氧鎓离子进行了几何构型的全优化,确定了各个构型的电子结构、键长和前线轨道能量等参数,并运用前线轨道理论从微观层次上分析了四氢呋喃的阳离子均聚机理。
According to the analysis of frontier orbitals and molecule electrostatic potential, these four anions can be classified into two types: Mo 6O 2- 19 and W 6O 2- 19 which are electron acceptors, and Nb 6O 8- 19 and Ta 6O 8- 19 which are electron donors.
采用B3LYP方法在LanL2DZ水平上计算了六聚同多阴离子 (M6On-19,M =Mo和W ,n =2 ;M =Nb和Ta ,n =8)的电子结构 ,分析了它们的前线轨道、分子静电势 (MEP) 。
By analysis of their frontier orbitals, t.
运用前线轨道理论从微观电子结构层次上对环氧乙烷的各种均聚反应机理进行了分析 ,探讨了阳离子均聚和阴离子均聚机理的合理性 。
In order to investigate the dynamic performances of the curved track structure,the dynamic properties of the strengthened track and the unstrengthened track were compared based on system engineering theory and vehicle-track coupling dynamics.
基于系统工程思想,运用机车车辆-轨道耦合动力学理论,对采取了强化技术对策后的山区铁路小半径曲线轨道的动力性能进行仿真计算,并与强化前轨道结构动力学性能进行了对比分析。
A method is introduced in this paper to calculate the displacements of vehicle suspension when the train is running on tangent and curved tracks.
借助分析刚体上任意点相对其参考坐标系的位移的方法,通过在直线轨道和曲线轨道上分别建立不同的参考坐标系,经过坐标系之间变换,可快捷和准确地计算出直线轨道和曲线轨道上车辆系统悬挂相对位移。
An energy level diagram for frontier orbitals was plotted with transition energies calculatsd from the frontier orbitals.
画出了前线轨道能级图并计算了其跃迁能。
Application of frontier orbital in developing new collectors of chalcopyrite
前线轨道在黄铜矿捕收剂开发中的应用
Analysis of the Assessment of Loess Tunnel Settlement before Laying Slab Track on Zhengzhou-Xi'an Passenger Dedicated Line
郑西客运专线黄土隧道无砟轨道铺设前沉降评估浅析
LCAO (Linear Combination of Atomic Orbitals)
原子轨道函数线性组合
orbiting satellites carrying amateur radio
业余无线电用轨道卫星
move in an orbit, as of celestial bodies.
如天体一样绕轨道前进。
The present-day eccentricity of the orbit is small.
目前，轨道的偏心率不大。
A track or way for trams, as in a mine.
有轨车辆的轨道或路线，如在矿山中的
Calculation of Impedance of Rail Track for Ballastless Track Line;
无碴轨道线路钢轨阻抗参数计算方法
Research on Wheel-Rail Rolling Noise on Ballasted Track of Passenger Dedicated Line;
客运专线有碴轨道轮轨滚动噪声研究
Research on Design of the 40.5 m Steel Track Girder for Line 2 of Chongqing Light Rail
重庆轻轨2号线40.5m钢轨道梁设计研究
Deviating from a circular form or path, as in an elliptical orbit.
偏离轨道运行的偏离圆周轨道或路线，如椭圆轨道
Research on Straight Switch for Continuously Welded Rail in Urban Rail Transit;
城市轨道交通直线尖轨道岔无缝化研究
Research on the Track Irregularity of Ballastless Track in the Comprehensive Experimental Section of Suining-Chongqing Railway Line
遂渝线无砟轨道综合试验段轨道平顺状态研究
Track-laying scheme cost analysis of main line viaducts of rail transit;
轨道交通正线高架桥铺轨方案及费用分析
Common Malfunction Diagnosis and Treatment of Monorail Loop Track Circuit
单轨交通环线轨道电路常见故障判断与处理
Solution Exploration of Supervision and Inspection of Broken Track or Track Lead of 25Hz Series Track Circuit
25Hz相敏轨道电路断轨(断线)监督检查方案的探讨
A curve that cuts all of a given family of curves or surfaces at the same angle.
常角轨道，轨线以同样的角度切割给定系统所有曲线或平面的曲线
