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Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Frontiers of Structural and Civil Engineering 2015, Volume 9, Issue 2,   Pages 194-202 doi: 10.1007/s11709-015-0292-z

Abstract: Considering the interactions between an embedded foundation and saturated soil, the torsional vibrationsof a cylindrical foundation embedded in a saturated poroelastic medium are analyzed in this paper.Both a rigid foundation and an elastic foundation are considered.Assuming both the side surface and the bottom surface of the foundation are perfectly bonded to soil,of an embedded cylindrical foundation are presented.

Keywords： embedded foundation     saturated soil     rigid foundation     elastic foundation     torsional vibration    

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On Social-technical Control of Safety Development in Economic Transition Background

Xue-qiu He,Song Li

Frontiers of Engineering Management 2015, Volume 2, Issue 3,   Pages 234-240 doi: 10.15302/J-FEM-2015025

Abstract: Industrial safety and economic growth, two vital and inextricable forces affecting national culture andFollowing economic growth, industrial safety remains as a high priority in this nation’s quest for sustainableAt present, while China is on its way to transforming its economic structure and growth models, talk

Keywords： safety development     economic growth     economic transition     social-technical control    

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The Spatial Spillover Effects of Infrastructure on Economic Growth in Shenyang Economic Zone

Ying-hui Xiang,Ting-ting Zhang,Qiu-yang Ren

Frontiers of Engineering Management 2016, Volume 3, Issue 3,   Pages 290-293 doi: 10.15302/J-FEM-2016041

Abstract: This article analyses the spatial spillover effects of infrastructure on regional economic growth byusing the panel data of eight cities of Shenyang Economic Zone from 2001 to 2013.growth, demonstrating that the spillover effects of infrastructure in Shenyang Economic Zone are positivegrowth; (3) the effects of local infrastructure on local economic growth are far greater than thosezone, which is related to the level of economic development.

Keywords： Shenyang Economic Zone     infrastructure     spatial spillover     economic growth     coordinated development    

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Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 546-565 doi: 10.1007/s11709-023-0943-4

Abstract: Scouring is one of the primary triggers of failure for bridges across rivers or seas. However, research concerning the scour mechanism of multi-wall foundations (MWFs) remains scarce, hindering the further application of MWFs. In this study, for the first time, the scouring effect caused by unidirectional flow around MWFs was examined numerically using FLOW-3D involving a large-eddy simulation. Initially, the applicability of the scouring model and input parameters was validated using a case study based on published measured data. Subsequently, the scouring effects of four MWFs with different wall arrangements and inflow angles, including the flow field analysis and scour pit and depth, were investigated thoroughly. It was found that the maximum scour depth of MWFs with an inflow angle of 0° was smaller than that of those with an inflow angle of 45°, regardless of the wall arrangement. Meanwhile, changing the inflow angle significantly affects the scour characteristics of MWFs arranged in parallel. In practical engineering, MWFs arranged in parallel are preferred considering the need for scouring resistance. However, a comparative analysis should be performed to consider comprehensively whether to adopt the form of a round wall arrangement when the inflow angle is not 0° or the inflow direction is changeable.

Keywords： multi-wall foundation     current-induced scour     bridge foundation     large-eddy simulation     numerical analysis    

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The Green & Circular Development Strategy of the Qinba Mountain Area in the Henan region (Funiu Mountains) of China

Liu Jiongtian

Strategic Study of CAE 2016, Volume 18, Issue 5,   Pages 80-91 doi: 10.15302/J-SSCAE-2016.05.012

Abstract: then analyzes the basic situation of the "strong ecological environment" and "weak economicfoundation" characteristics of the Qinba Mountain Area in the Henan region from these aspectsof the area's geographic and geomorphic features, population, society and infrastructure, economic

Keywords： region     Funiu Mountains     the green & circular development     strategy study     ecological environment     economicfoundation    

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Evaluation of seismic reliability of gravity dam-reservoir-inhomogeneous foundation coupled system

Hamid Taghavi GANJI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 701-715 doi: 10.1007/s11709-018-0507-1

Abstract: The seismic performance of gravity dam-reservoir-foundation coupled system is investigated utilizingThe methodology is applied to Pine Flat gravity dam and the foundation is considered to be inhomogeneousThe effects of the deconvolution process, number of samples, and foundation inhomogeneity are investigated

Keywords： gravity dams     dam-reservoir-foundation interaction     seismic reliability     inhomogeneous foundation     earthquake    

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Comparative study on foundation treatment methods of immersed tunnels in China

Shaochun WANG, Xuehui ZHANG, Yun BAI

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 1,   Pages 82-93 doi: 10.1007/s11709-019-0575-x

Abstract: typical traffic immersed tunnels built in China, this paper details the features of the four dominant foundationtreatment methods for immersed tunnel construction: pile foundation, sand flow foundation, groutingfoundation, and gravel bedding foundation.Further, a comprehensive comparison of settlement and cost of these four foundation treatment methodsThe findings of this article could henceforth be applied to foundation treatment work in immersed tube

Keywords： foundation treatment method     immersed tunnel     subsoil stress     settlement    

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Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Frontiers in Energy 2014, Volume 8, Issue 4,   Pages 449-458 doi: 10.1007/s11708-014-0316-8

Abstract: In recent years, various heuristic optimization methods have been proposed to solve economic dispatch

Keywords： artificial bee colony (ABC) algorithm     economic dispatch (ED)     valve-point effect     optimization    

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Life-cycle assessment and techno-economic analysis of the production of wood vinegar from stem: a case

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1109-1121 doi: 10.1007/s11705-022-2296-2

Abstract: This research undertook a case study of the life-cycle assessment and techno-economic analysis of theMeanwhile, the total capital investment, total product cost, and cash flowsheet were provided in the techno-economicincrease in the added value of the wood vinegar and the activated carbon could remarkably improve the economic

Keywords： life-cycle assessment     techno-economic analysis     wood vinegar     activated carbon     Eucommia    

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Centrifuge model test and field measurement analysis for foundation pit with confined water

Chunlin DING , Xiaohong MENG ,

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 3,   Pages 299-304 doi: 10.1007/s11709-009-0035-0

Abstract: The similarity law of centrifuge test was developed for the seepage field and stress field of a foundationBased on the deep foundation pit of the Huangxing Road Station of the Shanghai metro line M8, the deformation

Keywords： foundation pit with confined water     centrifuge model test     seepage-stress coupling field     similarity relation    

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Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 461-477 doi: 10.1007/s11709-021-0705-0

Abstract: internal force of the piles, as well as inordinate settlement of soil surrounding the existing bridge foundationIt was found that the excavation depth and the distance between the foundation pit and the bridge foundationFor the FEM, the FE baseline model was calibrated based on the case of no bridge surrounding the foundationFurthermore, the lateral displacement of the bridge pile foundation, the internal force of the piles,and the settlement of the soil surrounding the pile foundation were emphatically analyzed.

Keywords： deep foundation pit excavation     adjacent bridge foundation     influencing factors     analytic hierarchy process    

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An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 340-345 doi: 10.1007/s11709-007-0045-8

Abstract: The structure-foundation system is transformed from an original open system into an approximately hermeticThis procedure is highly efficient in analyzing dynamic structure-foundation interaction problems insource problem in 2-dimensions (2-D) elastic semi-infinite space, and the other is a dynamic structure-foundationThe results also indicate that the proposed method is more advantageous for solving large structure-foundation

Keywords： structure-foundation interaction     superposition     interaction problem     freedom     efficient    

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Mass and heat balance calculations and economic evaluation of an innovative biomass pyrolysis project

Quanyuan WEI, Yongshui QU, Tianwei TAN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 355-361 doi: 10.1007/s11705-010-0567-9

Abstract: These results showed that the straw pyrolysis project has little risk, and will produce remarkable economic

Keywords： mass balance     heat balance     biomass pyrolysis     economic benefit    

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Environmental and economic assessment of vegetable oil production using membrane separation and vapor

Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 166-176 doi: 10.1007/s11705-017-1616-4

Abstract: Solvent extraction of crude oil from oilseeds is widely applied for its high production capacity and low cost. In this process, solvent recovery and tail gas treatment are usually performed by adsorption, paraffin scrubbing, or even cryogenics (at low tail gas flow rates). Membrane separation, which has a lower energy consumption than these techniques, spans a broad range of admissible concentrations and flow rates, and is moreover easily combined with other techniques. Vapor recompression has potentials to reduce the heat loss in association with distillation and evaporation. In this study, we proved the possibility of combining membrane separation and vapor recompression to improve the conventional vegetable oil production, by both experiments and process simulation. Nearly 73% of energy can be saved in the process of vegetable oil extraction by the novel processing approach. By further environmental assessment, several impact categories show that the optimized process is environmentally sustainable.

Keywords： vegetable oil     solvent-extraction     membrane separation     vapor recompression     environmental and economic assessment    

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Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 590-606 doi: 10.1007/s11708-020-0809-6

Abstract: The thermodynamic and economic performances of two systems are analyzed and compared.indicates that the thermodynamic performance of the indirect coupling system is slightly worse, but the economicThe price fluctuation of fuels and products has a great influence on the economic performance of the

Keywords： biomass     indirect coupling system     process simulation     thermodynamic analysis     economic analysis    

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Title Author Date Type Operation

Torsional vibrations of a cylindrical foundation embedded in a saturated poroelastic half-space

Dazhi WU,Lu YU

Journal Article

On Social-technical Control of Safety Development in Economic Transition Background

Xue-qiu He,Song Li

Journal Article

The Spatial Spillover Effects of Infrastructure on Economic Growth in Shenyang Economic Zone

Ying-hui Xiang,Ting-ting Zhang,Qiu-yang Ren

Journal Article

Numerical modeling of current-induced scour around multi-wall foundation using large-eddy simulation

Journal Article

The Green & Circular Development Strategy of the Qinba Mountain Area in the Henan region (Funiu Mountains) of China

Liu Jiongtian

Journal Article

Evaluation of seismic reliability of gravity dam-reservoir-inhomogeneous foundation coupled system

Hamid Taghavi GANJI, Mohammad ALEMBAGHERI, Mohammad Houshmand KHANEGHAHI

Journal Article

Comparative study on foundation treatment methods of immersed tunnels in China

Shaochun WANG, Xuehui ZHANG, Yun BAI

Journal Article

Artificial bee colony optimization for economic dispatch with valve point effect

Yacine LABBI,Djilani Ben ATTOUS,Belkacem MAHDAD

Journal Article

Life-cycle assessment and techno-economic analysis of the production of wood vinegar from stem: a case

Journal Article

Centrifuge model test and field measurement analysis for foundation pit with confined water

Chunlin DING , Xiaohong MENG ,

Journal Article

Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

Journal Article

An efficient method for the dynamic interaction of open structure-foundation systems

LIU Jingbo, GU Yin, LI Bin, WANG Yan

Journal Article

Mass and heat balance calculations and economic evaluation of an innovative biomass pyrolysis project

Quanyuan WEI, Yongshui QU, Tianwei TAN

Journal Article

Environmental and economic assessment of vegetable oil production using membrane separation and vapor

Weibin Kong, Qi Miao, Peiyong Qin, Jan Baeyens, Tianwei Tan

Journal Article

Thermodynamic and economic analyses of a coal and biomass indirect coupling power generation system

Buqing YE, Rui ZHANG, Jin CAO, Bingquan SHI, Xun ZHOU, Dong LIU

Journal Article