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Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 533-545 doi: 10.1007/s11709-023-0946-1

Abstract: constitutive models are introduced to numerically simulate the failure process of materials on the excavationAdditionally, the parameters of the models are modified based on laboratory disc cutter excavation testThe tangential loads of the disc cutters during the cutting of four typical soft-strata excavation face

Keywords： shield tunneling     disc cutter load     laboratory excavation test     numerical calculation     soft–hard varied    

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Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Frontiers of Structural and Civil Engineering   Pages 1370-1386 doi: 10.1007/s11709-023-0947-0

Abstract: The tunnel boring machine (TBM) is typically used in hard-rock tunnel excavation.study, the effects of water pressure, nozzle diameter, and nozzle speed on cutting are investigated via laboratoryperformance of the TBM under different water pressures is investigated via a field industrial penetration test

Keywords： tunnel boring machine     hard-rock cutting     free face     disc cutter     rock-cutting efficiency    

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Numerical and experimental analyses of methane leakage in shield tunnel

Frontiers of Structural and Civil Engineering   Pages 1011-1020 doi: 10.1007/s11709-023-0956-z

Abstract: In addition, laboratory tests on methane leakage through segment joints were performed.

Keywords： shield tunnel     harmful gas leakage     numerical analysis     laboratory test    

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Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 1,   Pages 27-34 doi: 10.1007/s11709-016-0359-5

Abstract: , sulfate soundness test and Washington degradation test.However, there have long been concerns arising over Washington degradation test used as an acceptanceMicro-Deval test, Washington degradation test and other tests currently specified in Alaska were conductedto replace Washington degradation test in Alaska.It is recommended that Micro-Deval test be considered as an additional test for a certain period, but

Keywords： aggregate durability     Washington degradation test     Micro-Deval test    

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Seepage failure by heave in sheeted excavation pits constructed in stratified cohesionless soils

Serdar KOLTUK, Jie SONG, Recep IYISAN, Rafig AZZAM

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1415-1431 doi: 10.1007/s11709-019-0565-z

Abstract: experimental and numerical investigations are performed to clarify the seepage failure by heave in sheeted excavationsoils in which a relatively permeable soil layer ( ) lies above a less permeable soil layer ( ) between excavationIt is shown that the evaluation of base stabilities of excavation pits against seepage failure by usingFurther investigations are performed by using axisymmetric excavation models with various dimensions

Keywords： seepage failure by heave     cohesionless stratified soil     model test     Terzaghi and Peck’s approach     FE analysis    

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Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 8,   Pages 1029-1039 doi: 10.1007/s11709-022-0861-x

Abstract: In this study, blasting vibration signals were measured during underground excavation in carbonaceous

Keywords： wavelet analysis     blast-induced vibration     frequency characteristics     underground excavation    

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Laboratory diagnosis for malaria in the elimination phase in China: efforts and challenges

Frontiers of Medicine 2022, Volume 16, Issue 1,   Pages 10-16 doi: 10.1007/s11684-021-0889-7

Abstract: Various external quality assessments were implemented, and a national malaria diagnosis reference laboratorylessons about malaria diagnosis in the elimination phase, primarily including the establishments of laboratory

Keywords： malaria     laboratory diagnosis     quality control     malaria elimination     China    

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Optimized determination of airborne tetracycline resistance genes in laboratory atmosphere

Lu Song, Can Wang, Yizhu Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1274-5

Abstract: . • Providing research basis to control airborne ARGs of a laboratory atmosphere Antibiotic resistanceThe result demonstrated that airborne ARGs in an indoor laboratory atmosphere could pose the considerable

Keywords： Airborne tetracycline resistance genes     Filter sampling     Capture loading     Membrane pretreatment     Indoor laboratory    

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Erratum to: Optimized determination of airborne tetracycline resistance genes in laboratory atmosphere

Lu Song, Can Wang, Yizhu Wang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1289-y

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Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based optimal trajectory planning

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0686-2

Abstract: In the field of autonomous excavation, environmental perception and excavation trajectory planning areThen, by establishing the dynamical model of the UES, a point to point (PTP) excavation trajectory planningBased on optimal trajectory command, the UES performs autonomous excavation.Compared with the common excavation trajectory planning approaches, the proposed method tends to be morecapable in terms of mining time and energy consumption, ensuring high-performance excavation of the

Keywords： autonomous excavation     unmanned electric shovel     point cloud     excavation trajectory planning    

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Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment

Huailei CHENG; Liping LIU; Lijun SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 267-280 doi: 10.1007/s11709-022-0811-7

Abstract: However, this parameter varies between the laboratory and field loading modes (i.e., loading frequencycomprehensive frequency-based approach to correlate the asphalt layer moduli obtained under two field and three laboratoryThe field modes are vehicular and falling weight deflectometer (FWD) loading modes, and the laboratoryIt is found that the moduli obtained via laboratory 4PB tests are pretty close to those of vehicular

Keywords： asphalt mixture layer     stiffness modulus     loading mode     UC/4PB/IDT     FWD     frequency    

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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: Many uncertain factors in the excavation process may lead to excessive lateral displacement or over-limitedIt was found that the excavation depth and the distance between the foundation pit and the bridge foundation

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

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Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 26-43 doi: 10.1007/s11709-017-0439-1

Abstract: instrumentation program lasting 14 months was conducted to monitor the behaviors of this deep circular excavation

Keywords： deep excavation     foundation pit     soft clay     top-down method     field observation     ground surface movements     ground    

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Partitioning of heavy metals during municipal solid waste incineration on a laboratory fluid bed furnace

LI Jianxin, YAN Jianhua, CHI Yong

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 359-364 doi: 10.1007/s11708-007-0054-2

Abstract: effects of temperature, chlorine and water on the partitioning of heavy metals are studied using a laboratory

Keywords： partitioning     municipal     volatility     significant influence     temperature    

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Undrained seismic bearing capacity of strip footing adjacent to a heterogeneous excavation

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 4,   Pages 566-583 doi: 10.1007/s11709-023-0905-x

Abstract: The analysis of the bearing capacity of strip footings sited near an excavation is critical in geotechnicsIn this study, the effects of the geometrical features of the excavation and the soil strength propertieson the seismic bearing capacity of a strip footing resting on an excavation were evaluated using theThe effects of the setback distance ratio (L/B), excavation height ratio (H/B

Keywords： excavation     finite element limit analysis     heterogeneous soil     strip footing     undrained bearing capacity    

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Title Author Date Type Operation

Analysis of load and adaptability of disc cutters during shield tunneling in soft–hard varied strata

Journal Article

Field and laboratory experimental studies on hard-rock tunnel excavation based on disc cutter coupled

Journal Article

Numerical and experimental analyses of methane leakage in shield tunnel

Journal Article

Laboratory assessment of Alaska aggregates using Micro-Deval test

Jenny LIU,Sheng ZHAO,Anthony MULLIN

Journal Article

Seepage failure by heave in sheeted excavation pits constructed in stratified cohesionless soils

Serdar KOLTUK, Jie SONG, Recep IYISAN, Rafig AZZAM

Journal Article

Prediction of characteristic blast-induced vibration frequency during underground excavation by using

Tae Un PAK; Guk Rae JO; Un Chol HAN

Journal Article

Laboratory diagnosis for malaria in the elimination phase in China: efforts and challenges

Journal Article

Optimized determination of airborne tetracycline resistance genes in laboratory atmosphere

Lu Song, Can Wang, Yizhu Wang

Journal Article

Erratum to: Optimized determination of airborne tetracycline resistance genes in laboratory atmosphere

Lu Song, Can Wang, Yizhu Wang

Journal Article

Toward autonomous mining: design and development of an unmanned electric shovel via point cloud-based optimal trajectory planning

Journal Article

Bridging the gap between laboratory and field moduli of asphalt layer for pavement design and assessment

Huailei CHENG; Liping LIU; Lijun SUN

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

Shanghai center project excavation induced ground surface movements and deformations

Guolin XU, Jiwen ZHANG, Huang LIU, Changqin REN

Journal Article

Partitioning of heavy metals during municipal solid waste incineration on a laboratory fluid bed furnace

LI Jianxin, YAN Jianhua, CHI Yong

Journal Article

Undrained seismic bearing capacity of strip footing adjacent to a heterogeneous excavation

Journal Article