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Several issues to be considered for long-term better behavior of concrete gravity dams

Jinsheng JIA,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1, Pages 40-46 doi: 10.1007/s11709-010-0006-5

Abstract: More and more attention will be paid on the long-term better behavior of dams to guarantee the safetyThe life span and the real safety status of old dams becomes a challenging task for the dam society,operated since 1943 and suffered uplift pressure, freeze and thaw problems, etc., discussions on the life

Keywords： dam safety economic life span structural life span environmental life span rehabilitation social decision

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Fatigue Life Prediction of Long-Life Pavement Using Frequency-Domain Analysis

Wei Baoli,Guo Chengchao and Cui Can

Strategic Study of CAE 2017, Volume 19, Issue 6, Pages 80-85 doi: 10.15302/J-SSCAE-2017.06.012

Abstract:

This paper analyses a pavement fatigue life prediction method for asphaltA detailed frequency domain analysis of fatigue life was carried out.power spectral density of the vehicle-road coupling vibration is a useful tool to predict the fatigue lifeand corresponding prediction procedures are proposed, which are aimed at providing some reference for long-life

Keywords： long-life pavement fatigue life prediction random vibration power spectral density

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Strategies for Establishing and Perfecting Long-Life Security Strategy of Transportation Infrastructure

Du Yanliang,Sun Baochen,Wu Zhishen,Qian Yongjiu and Gao Yang

Strategic Study of CAE 2017, Volume 19, Issue 6, Pages 1-5 doi: 10.15302/J-SSCAE-2017.06.001

Abstract: transportation infrastructure is facing severe challenges such as serious structural defects, short life, aging, and the absence of a long-life security strategy.and proposes the overall objectives, strategic tasks, and related recommendations for constructing a long-lifeIt also presents systematic research into construction of long-life security systems for transportationThis research has a very significant strategic significance in ensuring the safe long-life service of

Keywords： transportation infrastructures long life security

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Discussion on Long-Life Security Strategies for Railway Track Engineering

Wang Ping,Chen Rong and An Boyang

Strategic Study of CAE 2017, Volume 19, Issue 6, Pages 66-71 doi: 10.15302/J-SSCAE-2017.06.010

Abstract: maintenance still has numerous complicated problems to be solved, especially relating to insufficient service lifeTherefore, it is particularly urgent to organize and implement a long-life security plan for railwayCompared to developed countries, current research into long-life safety in the field of railway track

Keywords： railway track engineering long life safety guarantee Shift2Rail

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Analysis on Ways of Guaranteeing the Safety of Civil Structures in Traffic Systems during Long Service

Qian Yongjiu and Du Yanliang

Strategic Study of CAE 2017, Volume 19, Issue 6, Pages 6-11 doi: 10.15302/J-SSCAE-2017.06.002

Abstract: fields at home and abroad, discusses ways to guarantee the safety of the major civil structures during long

Keywords： civil structure long life safety evaluation management

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Long-term durability of onshore coated concrete —chloride ion and carbonation effects

Seyedhamed SADATI,Mehdi K. MORADLLO,Mohammad SHEKARCHI

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 2, Pages 150-161 doi: 10.1007/s11709-016-0341-2

Abstract: Enhancing service life of reinforced concrete (RC) structures located in marine environments is an issueThe present research addresses the effect of surface coatings on service life of onshore RC structuresLong-term performance of concrete samples up to 88 months of exposure at natural marine environment wasion build-up and variation in chloride ion diffusion were monitored with respect to time, and service liferesults it is proposed to use the aliphatic acrylic and polyurethane coatings for enhancing the service life

Keywords： carbonation chloride ion corrosion service life surface coating

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Service Security of Underwater Tunnel Lining Structures and Corresponding Guarantee Countermeasures

He Chuan,Liu Sijin,Zhang Yuchun and Feng Kun

Strategic Study of CAE 2017, Volume 19, Issue 6, Pages 44-51 doi: 10.15302/J-SSCAE-2017.06.007

Abstract: Based on these analyses, countermeasures guaranteeing the long-life security of underwater tunnel structureseffectively protect and ensure the service performance of the tunnel structures during their entire lifeThese security measures can ensure the safe performance of the structure during its entire life cycle, even under long service times.

Keywords： underwater tunnels service security security guarantee countermeasures long life structural defects

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Whole-life Thinking and Engineering the Future

Roger Flanagan

Frontiers of Engineering Management 2014, Volume 1, Issue 3, Pages 290-296 doi: 10.15302/J-FEM-2014040

Abstract: Whole-life thinking for engineers working on the built environment has become more important in a fastWhole-life thinking is not new, every project attempts to balance the initial capital cost with the operatingSystems thinking provides one approach to developing a more robust whole-life approach.New approaches are needed to produce more reliable whole-life predictions.Best value, rather than lowest cost, can be achieved by using whole-life appraisal as a part of the design

Keywords： whole-life thinking systems thinking complexity chaos risk management through life

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Service Life Supervision for Individual Aircraft Structural System Based on Aircraft Structural Life

He Yuting

Strategic Study of CAE 2006, Volume 8, Issue 6, Pages 23-27

Abstract:

Based on the analysis of the aircraft structural life envelope (ASLE) under the baseline operationalconditions, an approach of establishment of aircraft structural life envelope (ASLE) under nonbaselineThe method of service life supervision for individual aircraft structural system(SLSFIASS) under nonbaseline

Keywords： aircraft structure life envelope service life supervision time between overhauls

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Long Undersea Tunnels: Recognizing and Overcoming the Logistics of Operation and Construction Article

Gareth Mainwaring, Tor Ole Olsen

Engineering 2018, Volume 4, Issue 2, Pages 249-253 doi: 10.1016/j.eng.2018.03.004

Abstract:

Long undersea tunnels, and particularly those that are built for transportation purposes, are notSimilar issues are associated with long under-land tunnels, such as those under mountain ranges such

Keywords： Channel Tunnel Fixed link Fire and life safety Shafts Gravity structures

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Prediction of Disc Cutter Life During Shield Tunneling with AI via the Incorporation of a Genetic Algorithm Article

Khalid Elbaz, Shui-Long Shen, Annan Zhou, Zhen-Yu Yin, Hai-Min Lyu

Engineering 2021, Volume 7, Issue 2, Pages 238-251 doi: 10.1016/j.eng.2020.02.016

Abstract: This study proposes a new model to estimate the disc cutter life (H_f) by integratingThe results indicate that the hybrid model predicts disc cutter life with high accuracy.sensitivity analysis reveals that the penetration rate (PR) has a significant influence on disc cutter life

Keywords： Disc cutter life Shield tunneling Operational parameters GMDH–GA

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Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0994-7

Abstract: It becomes an urgent issue to develop and adopt an effective End-of-Life (EoL) strategy for EEE in orderEoL strategies for EEE in China need to be evaluated in environment and resources aspects from the lifeLife Cycle Assessment (LCA) is applied to assess the environmental impacts of different EoL scenarios

Keywords： End-of-Life Waste electrical and electronic equipment Life cycle assessment Reuse

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Bayes estimation of residual life by fusing multisource information

Qian ZHAO, Xiang JIA, Zhi-jun CHENG, Bo GUO

Frontiers of Engineering Management 2018, Volume 5, Issue 4, Pages 524-532 doi: 10.15302/J-FEM-2018034

Abstract:

Residual life estimation is essential for reliability engineering.Traditional methods may experience difficulties in estimating the residual life of products with highreliability, long life, and small sample.In this study, a Bayes model is proposed to estimate the residual life of products by fusing expert knowledgeeffectiveness and practicability of the proposed method are validated by comparing it with residual life

Keywords： residual life estimation Bayes model linear Wiener process

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A comparison of production system life cycle models

Rajesh ATTRI, Sandeep GROVER

Frontiers of Mechanical Engineering 2012, Volume 7, Issue 3, Pages 305-311 doi: 10.1007/s11465-012-0332-5

Abstract: Hence, analyzing different life cycle models of the production system is necessary.In this paper, different life cycle models of the production system are compared to evaluate the distinctiveFurthermore, the difference between product life cycle and production life cycle is summarized, and theeffect of product life cycle on production life cycle is explained.Finally, a production system life cycle model, along with key activities to be performed in each stage

Keywords： production system life cycle model product

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General framework for bridge life cycle design

Junhai MA, Airong CHEN, Jun HE

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 1, Pages 50-56 doi: 10.1007/s11709-009-0004-7

Abstract: Based on a detailed illustration for bridge life cycle design which comprises the processes of servicelife design, aesthetics design, performance design, environmental and ecological design, inspection,maintenance and repair design as well as cost analysis, this paper presented a general framework for bridge life

Keywords： bridge whole life design design phase design process general framework