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期刊论文 8

会议视频 1

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2023 1

2022 2

2021 2

2018 1

2017 2

2015 1

关键词

交通基础设施 2

优化设计 1

城镇建设 1

安全保障 1

智能化 1

结构健康监测 1

结构消纳 1

自动化施工 1

重大基础设施;强电磁脉冲;分级防护;应急响应;电磁防护 1

长寿命 1

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Demands and challenges for construction of marine infrastructures in China

Huajun LI; Yong LIU; Bingchen LIANG; Fushun LIU; Guoxiang WU; Junfeng DU; Huimin HOU; Aijun LI; Luming SHI

《结构与土木工程前沿(英文)》 2022年 第16卷 第5期   页码 551-563 doi: 10.1007/s11709-022-0839-8

摘要: The oceans are crucial to human civilization. They provide core support for exploitation and utilization of marine space, resources, and energy. Thus, marine infrastructures are vital to a nation’s economic sustainable development. To this end, this article first describes the main challenges in current ocean utilization, and then reviews the China’s ocean engineering progress. As such, six major sectors are evaluated: 1) global climate change and marine environment, 2) comprehensive utilization of marine space, 3) marine transportation infrastructure interconnection, 4) ocean clean energy development and maricultural facilities, 5) ecological crisis and marine engineering countermeasures, and 6) marine infrastructure operation safety and maintenance. Finally, perspectives on future directions of ocean utilization and marine infrastructure construction in China are provided.

关键词: marine infrastructures     ocean engineering     exploitation of marine resource     coastal development     emerging marine industries     technological challenges    

Pavement sustainability index for highway infrastructures: A case study of Maryland

Stella O. OBAZEE-IGBINEDION, Oludare OWOLABI

《结构与土木工程前沿(英文)》 2018年 第12卷 第2期   页码 192-200 doi: 10.1007/s11709-017-0413-y

摘要: Pavement deterioration creates conditions that undermine their performances, which gives rise to the need for maintenance and rehabilitation. This paper develops a mathematical multi-linear regression analysis (MLRA) model to determine a pavement sustainability index ( ) as dependent variable for flexible pavements in Maryland. Four categories of pavement performance evaluation indicators are subdivided into seven pavement condition indices and analyzed as independent variables for each section of pavement. Data are collected from five different roadways using field evaluations and existing database. Results indicate that coefficient of determination ( ) is correlated and significant, = 0.959. Of the seven independent variables, present serviceability index ( ) is the most significant with a coefficient value of 0.032, present serviceability rating ( ) coefficient value= 0.028, and international roughness index ( ) coefficient value= ?0.001. Increasing each unit value of coefficients for and would increase the value of ; thereby providing a more sustainable pavement infrastructure; which explains the significance of the model and why will most likely impact environmental, economic and social values.

关键词: pavement indices     sustainability     pavement performance     flexible pavements    

Quantitative analysis of impact of green stormwater infrastructures on combined sewer overflow control

Jinsong Tao, Zijian Li, Xinlai Peng, Gaoxiang Ying

《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0952-4

摘要: Stimulated by the recent USEPA’s green stormwater infrastructure (GSI) guidance and policies, GSI systems have been widely implemented in the municipal area to control the combined sewer overflows (CSOs), also known as low impact development (LID) approaches. To quantitatively evaluate the performance of GSI systems on CSO and urban flooding control, USEPA-Stormwater Management Model (SWMM) model was adopted in this study to simulate the behaviors of GSI systems in a well-developed urban drainage area, PSW45, under different circumstances. The impact of different percentages of stormwater runoff transported from impervious surfaces to the GSI systems on CSO and urban flooding control has also been investigated. Results show that with current buildup, GSI systems in PSW45 have the best performance for low intensity and short duration events on both volume and peak flow reductions, and have the worst performance for high intensity and long duration events. Since the low intensity and short duration events are dominant from a long-term perspective, utilizing GSI systems is considered as an effective measure of CSO control to meet the long-term control strategy for PSW45 watershed. However, GSI systems are not suitable for the flooding control purpose in PSW45 due to the high occurrence possibility of urban flooding during or after high intensity events where GSI systems have relatively poor performance no matter for a short or long duration event.

关键词: Green stormwater infrastructure (GSI)     Combined sewer overflows (CSOs)     Urban flooding     Low impact development (LID)     Stormwater Management Model (SWMM)    

Current situation and future perspectives of European natural gas sector

Vincenzo BIANCO,Federico SCARPA,Luca A. TAGLIAFICO

《能源前沿(英文)》 2015年 第9卷 第1期   页码 1-6 doi: 10.1007/s11708-014-0340-8

摘要: Gas market in Europe is experiencing a radical change for different reasons, partially determined and accelerated by economic downturn of the last period. In the past few years, many European countries adopted energy policies largely based on the utilization of natural gas. In fact, a sharp increase of the demand was observed and, at the same time, a lot of infrastructures were developed to assure the necessary supply. In the last few years, due to the economic downturn, natural gas demand decreased, causing a consistent oversupply on the market, which altered the consolidated dynamics of the sector. Understanding the changes currently under development in the European gas market is of paramount importance in order to design future strategies for the sector; in particular, it is necessary to understand if the present situation will cause a reshaping of the sector.

关键词: natural gas     natural gas market     oil-linked contracts     supply infrastructures     gas hubs    

交通基础设施智能化进展 Review

杜彦良, 伊廷华, 李晓军, 戎晓力, 董陇军,王 大为, 高阳, 冷真

《工程(英文)》 2023年 第24卷 第5期   页码 240-253 doi: 10.1016/j.eng.2023.01.011

摘要:

信息化社会背景下,土木工程科学与技术的发展正经历着深刻的变革,为传统建筑业的转型升级提供了千载难逢的历史性机遇。借助材料科学、计算机、人工智能和自动化控制等领域的前沿技术,新一代交通基础设施正朝着智能化方向快速发展,全球主要发达国家均因地制宜地大力推动以该方向为核心的交通基础设施行业革新战略。本文首先简述了交通基础设施智能化的基本定义、科学内涵和发展历程;然后以全生命周期为主线,系统梳理了交通基础设施在设计、施工、运维和消纳4 个阶段中智能化技术的发展现状以及当前所面临的主要挑战;接着以世界首条基于智能化理念建造的铁路——京张高速铁路为例,综合展示了智能化技术的最新成就;文末从标准体系、理论方法和人才培养三个维度对交通基础设施智能化领域的未来发展趋势进行了展望。

关键词: 智能化     交通基础设施     优化设计     自动化施工     结构健康监测     结构消纳    

Automated classification of civil structure defects based on convolutional neural network

Pierclaudio SAVINO, Francesco TONDOLO

《结构与土木工程前沿(英文)》 2021年 第15卷 第2期   页码 305-317 doi: 10.1007/s11709-021-0725-9

摘要: Today, the most commonly used civil infrastructure inspection method is based on a visual assessment conducted by certified inspectors following prescribed protocols. However, the increase in aggressive environmental and load conditions, coupled with the achievement of many structures of the life-cycle end, has highlighted the need to automate damage identification and satisfy the number of structures that need to be inspected. To overcome this challenge, this paper presents a method for automating concrete damage classification using a deep convolutional neural network. The convolutional neural network was designed after an experimental investigation of a wide number of pretrained networks, applying the transfer-learning technique. Training and validation were conducted using a database built with 1352 images balanced between “undamaged”, “cracked”, and “delaminated” concrete surfaces. To increase the network robustness compared to images in real-world situations, different image configurations have been collected from the Internet and on-field bridge inspections. The GoogLeNet model, with the highest validation accuracy of approximately 94%, was selected as the most suitable network for concrete damage classification. The results confirm that the proposed model can correctly classify images from real concrete surfaces of bridges, tunnels, and pavement, resulting in an effective alternative to the current visual inspection techniques.

关键词: concrete structure     infrastructures     visual inspection     convolutional neural network     artificial intelligence    

关于建立健全交通基础设施长寿命安全保障体系的战略思考

杜彦良,孙宝臣,吴智深,钱永久,高阳

《中国工程科学》 2017年 第19卷 第6期   页码 1-5 doi: 10.15302/J-SSCAE-2017.06.001

摘要:

本文主要针对我国交通基础设施存在的结构病害严重、“短寿命”突出、“老龄化”日益凸显、长寿命安全服役面临严峻挑战等问题,借鉴发达国家的先进经验,提出了我国交通基础设施长寿命安全保障体系建设的总体目标、战略任务及相关建议,并开展了交通基础设施长寿命安全保障体系的系统研究和建设工作,对确保其长寿命安全服役和交通大动脉的安全畅通、支撑国民经济可持续发展、保障人民生活安稳有序、助力国家安全和社会稳定具有十分重要的战略意义。

关键词: 交通基础设施     长寿命     安全保障    

重大基础设施非核强电磁脉冲威胁与防护策略研究

吴琦,刘元安,闻映红,赵明敏,王卫民,张金宝,苏东林

《中国工程科学》 2022年 第24卷 第4期   页码 249-258 doi: 10.15302/J-SSCAE-2022.04.022

摘要: commission to assess the threat to the United States from electromagnetic pulseEMP attack: Critical national infrastructurescommission to assess the threat to the United States from electromagnetic pulseEMP attack: Critical national infrastructures

关键词: 重大基础设施;强电磁脉冲;分级防护;应急响应;电磁防护    

标题 作者 时间 类型 操作

Demands and challenges for construction of marine infrastructures in China

Huajun LI; Yong LIU; Bingchen LIANG; Fushun LIU; Guoxiang WU; Junfeng DU; Huimin HOU; Aijun LI; Luming SHI

期刊论文

Pavement sustainability index for highway infrastructures: A case study of Maryland

Stella O. OBAZEE-IGBINEDION, Oludare OWOLABI

期刊论文

Quantitative analysis of impact of green stormwater infrastructures on combined sewer overflow control

Jinsong Tao, Zijian Li, Xinlai Peng, Gaoxiang Ying

期刊论文

Current situation and future perspectives of European natural gas sector

Vincenzo BIANCO,Federico SCARPA,Luca A. TAGLIAFICO

期刊论文

交通基础设施智能化进展

杜彦良, 伊廷华, 李晓军, 戎晓力, 董陇军,王 大为, 高阳, 冷真

期刊论文

Automated classification of civil structure defects based on convolutional neural network

Pierclaudio SAVINO, Francesco TONDOLO

期刊论文

莫诒隆:Metamaterial Based Vibration Isolation and Acoustic Mitigation of Future civil infrastructures(2019

莫诒隆(高级职称)

2021年01月20日

会议视频

关于建立健全交通基础设施长寿命安全保障体系的战略思考

杜彦良,孙宝臣,吴智深,钱永久,高阳

期刊论文

重大基础设施非核强电磁脉冲威胁与防护策略研究

吴琦,刘元安,闻映红,赵明敏,王卫民,张金宝,苏东林

期刊论文