The distribution of velocity is one of the basic issues in river dynamics.Based on the experimental data measured by ADV in the flume of State Key Hydraulics Laboratory (SKHL),this paper analyzed the ver- tical distri...The distribution of velocity is one of the basic issues in river dynamics.Based on the experimental data measured by ADV in the flume of State Key Hydraulics Laboratory (SKHL),this paper analyzed the ver- tical distribution of point velocity and the varying law of turbulence intensity in straight mobile compound chan- nel with an asymmetric floodplain.Above certain relative height,the streamwise point velocity follows the loga- rithmic distribution.Below the location,the velocity varies linearly approxim...展开更多
Based on the analysis of forces acting on non-cohesive sediment particle under non-equilibrium con- dition,a vectorial equation of coarse particle movement on arbitrarily riverbed and the mathematical model used to si...Based on the analysis of forces acting on non-cohesive sediment particle under non-equilibrium con- dition,a vectorial equation of coarse particle movement on arbitrarily riverbed and the mathematical model used to simulate river width adjust are developed,some flume experiments for the time evolution of straight river channel are done.展开更多
随着建筑工程规模和结构复杂度的不断增加,连续钢构节段拼装精度控制与缝宽调整技术在现代工程中具有重要的实际意义。将广佛西环五工区工程作为具体案例,深入探讨了连续钢结构拼装过程中的精度控制技术和缝宽调整方法。通过分析节段预...随着建筑工程规模和结构复杂度的不断增加,连续钢构节段拼装精度控制与缝宽调整技术在现代工程中具有重要的实际意义。将广佛西环五工区工程作为具体案例,深入探讨了连续钢结构拼装过程中的精度控制技术和缝宽调整方法。通过分析节段预制精度、运输与吊装过程中的精度控制,以及拼装过程中的实时监测与调整,提出了基于建筑信息模型(Building Information Modeling,BIM)技术的精度控制辅助应用。在缝宽调整方面,详细阐述了缝宽调整的基本原则与目标,介绍了不同施工阶段应用的缝宽调整技术,为复杂钢结构工程的施工提供参考。展开更多
基金Supported by Key Project of Chinese.Ministry of Education (03134)
文摘The distribution of velocity is one of the basic issues in river dynamics.Based on the experimental data measured by ADV in the flume of State Key Hydraulics Laboratory (SKHL),this paper analyzed the ver- tical distribution of point velocity and the varying law of turbulence intensity in straight mobile compound chan- nel with an asymmetric floodplain.Above certain relative height,the streamwise point velocity follows the loga- rithmic distribution.Below the location,the velocity varies linearly approxim...
基金Supported by National Natural Science Fund (50279024,50479029)Open Fund of State Key Laboratory of High Speed Flow,Sichuan University (200301)
文摘Based on the analysis of forces acting on non-cohesive sediment particle under non-equilibrium con- dition,a vectorial equation of coarse particle movement on arbitrarily riverbed and the mathematical model used to simulate river width adjust are developed,some flume experiments for the time evolution of straight river channel are done.
文摘随着建筑工程规模和结构复杂度的不断增加,连续钢构节段拼装精度控制与缝宽调整技术在现代工程中具有重要的实际意义。将广佛西环五工区工程作为具体案例,深入探讨了连续钢结构拼装过程中的精度控制技术和缝宽调整方法。通过分析节段预制精度、运输与吊装过程中的精度控制,以及拼装过程中的实时监测与调整,提出了基于建筑信息模型(Building Information Modeling,BIM)技术的精度控制辅助应用。在缝宽调整方面,详细阐述了缝宽调整的基本原则与目标,介绍了不同施工阶段应用的缝宽调整技术,为复杂钢结构工程的施工提供参考。
