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Study on Application of Environmental Value in Expressway Construction Project Scheme Choosing

Source: Journal of Highway and Transportation Research and Development (English Edition):;2011:;Volume ( 005 ):;issue: 002

Author(s): Yu Hailong; Gu Wei; Bu Chongfeng

Publisher: American Society of Civil Engineers

Abstract: The serious negative impacts on local ecosystem alongside caused by expressway construction activities were analyzed. Based on theory of ecosystem services value and cost benefit analysis (CBA), the influence on and the ...

Water Resources Management Models Based on Two-Level Linear Fractional Programming Method under Uncertainty

Source: Journal of Water Resources Planning and Management:;2015:;Volume ( 141 ):;issue: 009

Author(s): Mo Li; Ping Guo; Chongfeng Ren

Publisher: American Society of Civil Engineers

Abstract: A two-level linear fractional water management (TLFWM) model based on interactive fuzzy programming is developed. The model can solve multi-objective problems quantitatively, particularly for the ratio multi-objective ...

Mesoscale Modeling of Spallation Failure in Fiber-Reinforced Concrete Slab due to Impact Loading

Source: International Journal of Geomechanics:;2016:;Volume ( 016 ):;issue: 001

Author(s): Tao; Xu; Gaofeng; Zhao; Wancheng; Zhu; Chongfeng; Chen; Lin; Yuan

Publisher: American Society of Civil Engineers

Abstract: In this paper, a model for damage and fracture, considering the heterogeneity of material properties, is validated and used to investigate the mechanism of spallation in fiber-reinforced concrete (FRC) slabs with various ...

Spatial and Temporal Analyses of Water Resources Use Efficiency Based on Data Envelope Analysis and Malmquist Index: Case Study in Gansu Province, China

Source: Journal of Water Resources Planning and Management:;2016:;Volume ( 142 ):;issue: 012

Author(s): Chongfeng Ren; Ping Guo; Gaiqiang Yang; Ruihuan Li; Lei Liu

Publisher: American Society of Civil Engineers

Untitled

Source: Journal of Water Resources Planning and Management:;2018:;Volume ( 144 ):;issue: 006

Author(s): Zhang Fan;Guo Shanshan;Ren Chongfeng;Guo Ping

Publisher: American Society of Civil Engineers

Abstract: This paper developed an interval multiobjective two-stage stochastic programming (IMO-TSP) model. The model integrated interval two-stage stochastic programming (ITSP), interval linear multiobjective programming (IMOP), ...

Numerical Investigation of Damage Evolution and Localized Fracturing of Brittle Rock in Compression

Source: Journal of Performance of Constructed Facilities:;2017:;Volume ( 031 ):;issue: 005

Author(s): Tao Xu; Shengqi Yang; Chongfeng Chen; Tianhong Yang; Penghai Zhang; Honglei Liu

Publisher: American Society of Civil Engineers

Railway Air Brake Model and Parallel Computing Scheme

Source: Journal of Computational and Nonlinear Dynamics:;2017:;volume( 012 ):;issue: 005:;page 51017

Author(s): Wu, Qing; Cole, Colin; Spiryagin, Maksym; Wang, Yucang; Ma, Weihua; Wei, Chongfeng

Publisher: The American Society of Mechanical Engineers (ASME)

Abstract: This paper developed a detailed fluid dynamics model and a parallel computing scheme for air brake systems on long freight trains. The model consists of subsystem models for pipes, locomotive brake valves, and wagon brake ...