采用双钓鱼法吊装侯家沟大桥箱梁

根据侯家沟大桥特殊的地形状况，选用最合理、最经济的吊装方案，进行大桥的箱梁吊装。     

旧路改建工程设计

结合莞惠公路改建工程的设计经验,介绍改建公路设计时技术标准的应用,道路中线及路面结构的选择,阐述了如何进行加固和接长桥涵验算设计。     

70 m跨二铰型上承式桁架混凝土拱桥的施工技术

介绍70 m双铰型上承式桁架拱桥的施工和在施工阶段监测监控的内容及方法,可供类似工程建设参考。     

Design philosophy of floating bridges with emphasis on ways to ensure long life

The paper briefly outlines current design philosophies for floating bridges, with special reference to aspects that are deemed to be of interest in the context of very large floating structures. Since the design of submerged floating tunnels is done by people in the same milieu and deals with many of the same problems as in the design of floating bridges, while being in some respects more critical, some of the design philosophy of that subject is also included. The design philosophy and methodology for floating and submerged tunnel bridges draws heavily on Norwegian experiences in two large fields: offshore structures and conventional bridges.     

控制和管理一体化的DCS系统

阐述工业控制和管理一体化ＤＣＳ系统的重要性，介绍了一种网桥，将２＋控制网和ＮＯＶＥＬＬ网连网，并给出了具体的系统图和接口电路图。     

斜拉桥大型挂篮整体吊装施工技术

通过重庆奉节长江大桥及重庆云万高速公路彭溪河特大桥两座斜拉桥挂篮吊装施工的对比,主要介绍了利用简易水平吊架进行大型前支点挂篮高空整体吊装的施工技术。通过两座大桥挂篮整体吊装技术的成功实施,证明了该施工技术结构受力明确,施工便捷、速度快。     

汔车运行材料在现代电控汽油轿车上的使用分析

汽车使用的燃料、润滑剂、特种液和橡胶轮胎等统称为汽车运行材料。分析汽车运行材料在现代电控汽油轿车上的使用情况，给出相应的使用原则及注意事项，可为维修人员和驾驶员等提供参考。     

东营黄河大桥上部结构施工支架及挂篮关键技术

东营黄河大桥主桥上部结构(116 200 220 200 116)m预应力混凝土刚构连续结合梁的箱梁采用菱形挂篮悬臂施工法。介绍了主墩和次主墩0号块施工分别选取的支架方案,以及现浇直线段的支架方案。阐述了挂篮的试压方法,并对其试压结果进行了分析。     

Numerical simulation of the flow about self-propelling tanker models

A time-marching CFD simulation is performed for self-propelling ships. The flow about the hull is simulated by the finite-volume method, and the propeller action is approximated as a propeller disk for which the solution is given by a simplified propeller model. The interaction of two flow models is treated in a time-marching procedure converging towards the steady self-propelling condition. This method is applied to five tanker models, and detailed comparisons are made between the simulated results and corresponding experimental results. It is shown that the flow field in the self-propelling condition is qualitatively well reproduced in the simulation, and the estimated thrust deduction factors for the five hull forms agree well with measured ones. However, the effective wake factors are underestimated, since the Reynolds number in the simulations differs from that in the experiment.     

编组站驼峰车辆溜放速度控制系统的研究

以计算机和红外线传感器为主，研制了编组站驼峰车组溜放速度控制系统，系统通过检测车辆溜放的速度，计算出所需制动力的大小，通过缓器对车辆溜放进行速度控制，并具有对解体车辆自动计数，各种故障报警等功能。