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悬索桥 15

高速铁路 14

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中国高速铁路桥梁建设关键技术

郑健

《中国工程科学》 2008年第10卷第7期页码 18-27

摘要：

桥梁设计与建造是高速铁路建设的关键。在京津城际铁路桥梁、武汉天兴洲公铁两用长江大桥、南京大胜关长江大桥等建设实践中，广泛借鉴世界高速铁路桥梁的先进技术和成功建设经验，在建设理念、技术标准、设计特点、技术运用等方面，进行深入的研究和积极的探索，并得到了充分地运用，逐步形成了具有中国特色的高速铁路桥梁建设关键技术。

关键词：高速铁路桥梁关键技术

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京沪高速铁路北京至沧州段桥梁工程施工与创新

杜嘉俊

《中国工程科学》 2009年第11卷第1期页码 22-25

摘要：

针对京沪高速铁路北京至沧州段桥梁工程特点，重点介绍了代表性特殊结构桥梁的施工方法、区域性地面沉降地区桥梁工后沉降的控制措施，以及保证350 km/h无砟轨道高平顺性的施工技术创新措施。

关键词：高速铁路桥梁施工创新

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Mechanical performance analysis and stiffness test of a new type of suspension bridge

《结构与土木工程前沿（英文）》 2021年第15卷第5期页码 1160-1180 doi: 10.1007/s11709-021-0760-6

摘要： A new type of suspension bridge is proposed based on the gravity stiffness principle. Compared with a conventional suspension bridge, the proposed bridge adds rigid webs and cross braces. The rigid webs connect the main cable and main girder to form a truss that can improve the bending stiffness of the bridge. The cross braces connect the main cables to form a closed space truss structure that can improve the torsional stiffness of the bridge. The rigid webs and cross braces are installed after the construction of a conventional suspension bridge is completed to resist different loads with different structural forms. A new type of railway suspension bridge with a span of 340 m and a highway suspension bridge with a span of 1020 m were designed and analysed using the finite element method. The stress, deflection of the girders, unbalanced forces of the main towers, and natural frequencies were compared with those of conventional suspension bridges. A stiffness test was carried out on the new type of suspension bridge with a small span, and the results were compared with those for a conventional bridge. The results showed that the new suspension bridge had a better performance than the conventional suspension bridge.

关键词： new type of suspension bridge stiffness test mechanical performance railway bridge space truss

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京津城际铁路桥梁沉降观测与评估技术

丁愿文

《中国工程科学》 2009年第11卷第1期页码 43-47

摘要：

以京津城际铁路工程为例，系统地介绍了无碴轨道客运专线（高速铁路）桥梁沉降观测的具体要求、方法，并提出了沉降评估的数学模型和判定条件。

关键词：京津城际铁路桥梁沉降观测评估

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Model test of the group piles foundation of a high-speed railway bridge in mined-out area

Xin LIANG,Qian-gong CHENG,Jiu-jiang WU,Jian-ming CHEN

《结构与土木工程前沿（英文）》 2016年第10卷第4期页码 488-498 doi: 10.1007/s11709-016-0338-x

摘要： The research on the mechanism of pile-soil-cap-goaf interaction and settlement of high-speed railway bridge located in mined-out area is still relatively rare. By taking the pile group of Guanshandi bridge foundation in Hefei-Fuzhou high-speed railway as the prototype, a model test is carried out. According to the similarity theory, the similar constant is derived and the similar model material is determined. Meanwhile, three types of data including the bearing behavior of piles, and the settlement law, and soil among piles are investigated. It can be found that: the influence of goaf on the bearing capacity of pile is inversely to the loading degree, the larger of loading degree, the smaller impact of goaf on the bearing capacity. There is no negative side friction can been found in pile body and the degree of downward tendency for the barycenter of side friction layout is obvious for piles in goaf. Although the bearing ratio of soil resistance under cap is relatively large, the cap effect is suggested be ignored considering the characteristic of goaf. There is a maximum critical value for the uneven settlement of pile group in goaf, and when the value is reached, the uneven settlement stop growing anymore. In addition, the formula for calculating bearing capacity and settlement of pile group in goaf based on test results, theory analysis and related standard is established.

关键词： high-speed railway mined-out areas goaf group piles foundation physical model test bearing capacity settlement

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Running train induced vibrations and noises of elevated railway structures and their influences on environment

He XIA, Fei GAO, Xuan WU, Nan ZHANG, Guido DE ROECK, Geert DEGRANDE

《结构与土木工程前沿（英文）》 2009年第3卷第1期页码 9-17 doi: 10.1007/s11709-009-0010-9

摘要： The vibrations and noises of elevated railway structures have been cause for concern due to their effects on the environment and the people living near elevated lines. In this paper, the main structural features of some new elevated bridges and station hall were introduced. The generation mechanism of vibrations and noise of elevated structures induced by trains were investigated. The noise induced by different types of elevated bridges, their influences on the environment and the theoretical method for the analysis of structure borne noise was analyzed. Finally, several field measurements on train induced noises at the platforms of elevated subway stations and bridges were presented.

关键词： railway elevated structure bridge station vibration noise environment

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跨长江黄河的高速铁路大跨度桥梁

高宗余

《中国工程科学》 2009年第11卷第1期页码 17-21

摘要：

建设中的京沪高速铁路和京广客运专线铁路，跨长江、黄河的4座大跨度桥梁都采用了钢桁梁结构，且均为多线铁路桥或公铁两用大桥，承载能力大、列车运行速度高。诸多新材料、新结构、新工艺获得运用。

关键词：高速铁路大跨度桥梁钢桁梁结构新技术

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我国铁路钢结构发展回顾与展望

刘晓光,卢春房,鞠晓臣,蔡超勋

《中国工程科学》 2020年第22卷第3期页码 117-124 doi: 10.15302/J-SSCAE-2020.03.018

摘要：

新中国成立以来我国铁路事业成就显著，在国民经济发展中发挥了重要作用，尤其是近15 年来高速铁路建设飞速发展，成为一张靓丽的国家名片。钢结构对于铁路发展起着不可替代且极为关键的作用，在铁路大跨度钢桥、高速铁路车站屋架结构等工程中获得广泛应用。站位于新的历史阶段，适时对我国铁路钢结构发展进行回顾和展望，具有一定的工程实践价值和理论研究价值。本文分别从材料、结构、使用规模的角度，对大跨度钢桥、车站屋架等铁路钢结构的发展进行了系统回顾；提出了我国铁路钢结构轻量化、装配化、信息化、耐久性和高韧性的技术发展趋势，总结了铁路钢结构在设计、施工、运维和材质等方面的未来重点工作。随着应用地域和环境的多样化，铁路钢结构仍然面临一系列有待攻克的技术难题，如耐候设计、海洋恶劣环境施工、高原少维护等，需持续加大研究投入以保障关键技术突破与运用。

关键词：钢桥车站钢结构信息化耐久性发展趋势

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京津城际铁路无砟轨道桥梁设计

孙树礼,张文建,王召祜,苏伟,吴彩兰,卜庆颢

《中国工程科学》 2009年第11卷第1期页码 32-42

摘要：

京津城际铁路是我国第一条建成运营的时速350 km客运专线。设计中贯彻桥梁建设新理念，确保高速条件下列车的安全性、舒适性和稳定性要求，并遵循环境适应性、服务运输和综合效益的设计理念。全线采用长桥方案，桥上采用最先进的无砟轨道技术，桥梁占线路长度的87.7 ％，京津城际铁路桥梁设计、建造的成功，为今后大规模高速铁路建设积累了宝贵的经验，起到了示范性、标志性、样板性工程的作用。

关键词：京津城际铁路无砟轨道桥梁设计理念

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高速铁路联调联试关键技术和试验研究主要成果

康熊,姚建伟

《中国工程科学》 2015年第17卷第4期页码 21-29

摘要：

阐释了高速铁路联调联试的内涵和必要性，结合我国高速铁路联调联试的工程实践，从轮轨关系、弓网关系、列车空气动力学、车-线-桥耦合等角度，对高速铁路联调联试关键技术进行了分析，对高速铁路联调联试和试验研究取得的主要成果进行了系统性提炼和归纳，给出可供高速铁路建设和运用参考的相关思考和建议。

关键词：高速铁路；系统试验；联调联试；轮轨关系；弓网关系；车-线-桥；列车空气动力学

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中国大跨度高速铁路桥梁技术的发展与前景

秦顺全, 高宗余

《工程（英文）》 2017年第3卷第6期页码 787-794 doi: 10.1016/j.eng.2017.11.001

摘要：

中国高速铁路发展迅速，建设了大量跨越大江大河和深山峡谷的大跨度桥梁，已经建成的高铁桥梁最大跨度为630 m，正在建设中的沪通长江大桥和五峰山长江大桥跨度达1092 m。为了解决大跨度桥梁载重量大、结构刚度要求高带来的技术难题，开发了系列多功能合建桥梁建造技术，开展了三索面三主桁、斜主桁、板- 桁架组合、钢- 混凝土组合等新型结构的创新与实践，对高性能材料研发和桥梁结构整体化制造及架设技术进行了探索。

关键词：高速铁路大跨度桥梁多功能组合桥梁高性能材料三索面空间结构整体化工厂制造

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DX挤扩灌注桩技术在铁路桥梁工程中的应用

张德华,王梦恕

《中国工程科学》 2009年第11卷第7期页码 92-96

摘要：

DX桩是近年来新兴的一种变截面新桩型。是在钻孔灌注桩的基础上，使用专用挤扩设备在桩底和桩身挤扩成为支盘状，然后浇灌混凝土后形成的桩身、分承力盘和桩根共同承载的桩型。DX桩可较大幅度提高单桩承载力。试验表明单桩承载力比同等条件下的直孔灌注桩提高80 %以上。DX桩可在粘性土、粉土、砂土层、强风化岩、残积土中挤扩承力盘，也可在卵砾石层的上层面挤扩成盘，更适宜在粘性土、粉土或砂土交互分层的地基中使用。DX桩的桩身直径可为400～2 000 mm,桩长可达60多米。是一种值得推广应用的新桩型，已在高层建筑、公路桥

关键词： DX桩旋挖挤扩灌注桩承载力

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Being good or being known: International reputation of high-speed railway enterprises

《工程管理前沿（英文）》页码 455-466 doi: 10.1007/s42524-023-0250-8

摘要： With fierce competition in the global high-speed railway (HSR) market, international reputation has become essential for enterprises to venture into overseas markets. However, few studies have been performed on the international reputation of HSR enterprises. This study aims to reveal the formation mechanism of HSR enterprises’ international reputation by developing a theoretical framework. The researchers identified five factors and proposed a hypothetical path model based on a comprehensive literature review. After the pilot study, questionnaires were distributed to practitioners in the international HSR industry for data collection. The path model was validated based on partial least-squares structural equation modeling. Eight of the nine paths are statistically supported. Researchers have structured a theoretical framework for the international reputation of HSR enterprises from two perspectives: Being good and being known. Subsequently, a strategic framework was developed to provide targeted promotion strategies for HSR enterprises. The findings of this study contribute to existing international reputation theories using the theoretical model and provide beneficial guidance for HSR enterprises to improve their international reputation through a strategic framework.

关键词： high-speed railway international reputation being good being known structural equation modeling

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Intelligent construction technology of railway engineering in China

Chunfang LU, Junfei LIU, Yanhong LIU, Yuming LIU

《工程管理前沿（英文）》 2019年第6卷第4期页码 503-516 doi: 10.1007/s42524-019-0073-9

摘要： Intelligent construction technology has been widely used in the field of railway engineering. This work first analyzes the connotation, function, and characteristics of intelligent construction of railway engineering (ICRE) and establishes its system structure from three dimensions, namely, life cycle, layers of management, and intelligent function, to deeply understand the development situation of intelligent railway construction in China. Second, seven key technical support systems of ICRE, which include building information modeling (BIM) standard system for China’s railway sector, technology management platform and life cycle management based on BIM+GIS (geography information system), ubiquitous intelligent perception system, intelligent Internet-of-Things (IoT) communication system based on mobile interconnection, construction management platform based on cloud computing and big data, unmanned operation system based on artificial intelligence, intelligent machinery and robot, and intelligent operation and maintenance system based on BIM and PHM (prediction and health management), are established. Third, ICRE is divided into three development stages: primary (perception), intermediate (substitution), and advanced (intelligence). The evaluation index system of each stage is provided from the aspects of technology and function. Finally, this work summarizes and analyzes the application situation of ICRE in the entire railway sector of China, represented by Beijing–Zhangjiakou and Beijing–Xiong’an high-speed railways. Result shows that the technical support systems of the ICRE have emerged in China and are still in the process of deepening basic technology research and preliminary application. In the future, the ICRE of China’s railway sector will develop toward a higher stage.

关键词： China railway sector intelligent construction railway engineering informatization development stage

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Evaluation of power regeneration in primary suspension for a railway vehicle

Ruichen WANG, Zhiwei WANG

《机械工程前沿（英文）》 2020年第15卷第2期页码 265-278 doi: 10.1007/s11465-019-0571-9

摘要： To improve the fuel economy of rail vehicles, this study presents the feasibility of using power regenerating dampers (PRDs) in the primary suspension systems of railway vehicles and evaluates the potential and recoverable power that can be obtained. PRDs are configured as hydraulic electromagnetic-based railway primary vertical dampers and evaluated in parallel and series modes (with and without a viscous damper). Hydraulic configuration converts the linear behavior of the track into a unidirectional rotation of the generator, and the electromagnetic configuration provides a controllable damping force to the primary suspension system. In several case studies, generic railway vehicle primary suspension systems that are configured to include a PRD in the two configuration modes are modeled using computer simulations. The simulations are performed on measured tracks with typical irregularities for a generic UK passenger route. The performance of the modified vehicle is evaluated with respect to key performance indicators, including regenerated power, ride comfort, and running safety. Results indicate that PRDs can simultaneously replace conventional primary vertical dampers, regenerate power, and exhibit desirable dynamic performance. A peak power efficiency of 79.87% is theoretically obtained in series mode on a top-quality German Intercity Express track (Track 270) at a vehicle speed of 160 mile/h (~257 km/h).

关键词： railway vehicle primary damper power regeneration ride comfort running safety