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LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 7,   Pages 871-881 doi: 10.1007/s11709-022-0863-8

Abstract: The failure criteria of practical soil mass are very complex, and have significant influence on the safetyfactor of slope stability.approach to determine the failure criterion, the limit equilibrium method can be used to calculate the safetyfactor of three-dimensional slope stability.Analysis of results of the safety factor of two three-dimensional homogeneous slopes shows that the maximum

Keywords： slope stability     safety factor     failure criterion     least square support vector machine    

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The stability safety factor calibration based on the reliability index

Tong Xiaolong,Fang Zhi

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 44-48

Abstract:

When the bridge structure stability safety factor of the first type isBased on the critical load obtained from the stability calculation of the first type, the stability safetyfactor of the first type is taken as 4, and the first order reliability method is used to program andThe evaluation of structure stability safety factor is discussed according to reliability index.The result shows that stability analysis should identify collapse state; when the stability safety index

Keywords： stability safety factor     reliability index     rigid frame bridge    

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Mechanism of the December 2015 Catastrophic Landslide at the Shenzhen Landfill and Controlling Geotechnical Risks of Urbanization Artical

Yueping Yin,Bin Li,Wenpei Wang,Liangtong Zhan,Qiang Xue,Yang Gao,Nan Zhang,Hongqi Chen,Tiankui Liu,Aiguo Li

Engineering 2016, Volume 2, Issue 2,   Pages 230-249 doi: 10.1016/J.ENG.2016.02.005

Abstract:

This paper presents findings from an investigation of the large-scale construction solid waste (CSW) landslide that occurred at a landfill at Shenzhen, Guangdong, China, on December 20, 2015, and which killed 77 people and destroyed 33 houses. The landslide involved 2.73×106 m3 of CSW and affected an area about 1100?m in length and 630?m in maximum width, making it the largest landfill landslide in the world. The investigation of this disaster used a combination of unmanned aerial vehicle surveillance and multistage remote-sensing images to reveal the increasing volume of waste in the landfill and the shifting shape of the landfill slope for nearly two years before the landslide took place, beginning with the creation of the CSW landfill in March, 2014, that resulted in the uncertain conditions of the landfill’s boundaries and the unstable state of the hydrologic performance. As a result, applying conventional stability analysis methods used for natural landslides to this case would be difficult. In order to analyze this disaster, we took a multistage modeling technique to analyze the varied characteristics of the landfill slope’s structure at various stages of CSW dumping and used the non-steady?flow?theory to explain the groundwater seepage problem. The investigation showed that the landfill could be divided into two units based on the moisture in the land: ① a front uint, consisted of the landfill slope, which had low water content; and ② a rear unit, consisted of fresh waste, which had a high water content. This structure caused two effects—surface-water infiltration and consolidation seepage that triggered the landslide in the landfill. Surface-water infiltration induced a gradual increase in pore water pressure head, or piezometric head, in the front slope because the infiltrating position rose as the volume of waste placement increased. Consolidation seepage led to higher excess pore water pressures as the loading of waste increased. We also investigated the post-failure soil dynamics parameters of the landslide deposit using cone penetration, triaxial, and ring-shear tests in order to simulate the characteristics of a flowing slide with a long run-out due to the liquefaction effect. Finally, we conclude the paper with lessons from the tens of catastrophic landslides of municipal solid waste around the world and discuss how to better manage the geotechnical risks of urbanization.

Keywords： Construction solid waste (CSW)     Landfill landslide     Factor of safety (FOS)     Geotechnical risk    

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c-Fos expression in rat brainstem following intake of sucrose or saccharin

Ke Chen, Jianqun Yan, Jinrong Li, Bo Lv, Xiaolin Zhao

Frontiers of Medicine 2011, Volume 5, Issue 3,   Pages 294-301 doi: 10.1007/s11684-011-0144-8

Abstract: sweet tastant is due to orosensory signals or post-ingestive factors, we compared the distribution of c-Fos-likeNo significant increase in the number of c-Fos positive neurons was detected in response to saccharintaste perception and modulation of sweet tastant intake, but the significantly enhanced intensity of Fos

Keywords： c-Fos     parabrachial     the nucleus of the solitary tract     sweet tastant     rat    

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The System Standpoint on Information Safety

Li Daimao

Strategic Study of CAE 2007, Volume 9, Issue 8,   Pages 21-25

Abstract:

The meanings in three layers on information safety are given.proposed that all management,  strategy and technology are necessary to implement information safety,  because the science of information safety is the merger of natural and social sciences.information safety in communication is given. The procedure of safety designing is suggested.

Keywords： information safety     security factor     information hiding     boundary     threat    

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Evaluation and prediction of slope stability using machine learning approaches

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 4,   Pages 821-833 doi: 10.1007/s11709-021-0742-8

Abstract: Different ML methods for the factor of safety (FOS) prediction are studied and compared hoping to makeand finally, the data are standardized. 11 ML methods are evaluated for their ability to learn the FOS

Keywords： slope stability     factor of safety     regression     machine learning     repeated cross-validation    

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The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Strategic Study of CAE 2006, Volume 8, Issue 12,   Pages 80-84

Abstract: But the safety factor of stability is facing challenge in engineering application.In this paper, in consideration of the state of soil original stress, the calculating formula for safetyfactor have been given with applying Coulomb's equation for shear strength of soil and Mohr - CoulombThere are many examples of safety factor using the formula of this paper, which have been calculated

Keywords： ateral stress coefficient K0     state of original stress     formula of safety factor of stability    

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Evaluation of the stability of terraced slopes in clayey gravel soil using a novel numerical technique

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 796-811 doi: 10.1007/s11709-023-0922-9

Abstract: the strength reduction method (SRM) based on the Mohr–Coulomb failure criterion to analyze the slope safetyfactor (SF).

Keywords： terraced slope     safety factor     finite element method     ABAQUS     extended Cam–clay    

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Effect of a less permeable stronger soil layer on the stability of non-homogeneous unsaturated slopes

Nabarun DEY, Aniruddha SENGUPTA

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 6,   Pages 1462-1475 doi: 10.1007/s11709-020-0674-8

Abstract: The factor of safety of a non-homogeneous, unsaturated soil slope decreases because of the less permeable

Keywords： non-homogeneous slope     stronger soil layer     factor of safety     centrifuge model test     unsaturated soils    

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Comparative Study on Structural Redundancy of Cable-Stayed and Extradosed Bridges Through Safety Assessment Article

Khawaja Ali, Hiroshi Katsuchi, Hitoshi Yamada

Engineering 2021, Volume 7, Issue 1,   Pages 111-123 doi: 10.1016/j.eng.2020.07.021

Abstract: study provides new insights into the comparison of cable-stayed and extradosed bridges based on the safetyuse of inclined cables; however, the international standards for bridge design stipulate different safetyTo address this misconception, a comparative study was carried out on the safety factors of stay cablesthe balanced states of the bridge models were achieved, static analyses were performed for different safetyMoreover, a significant increase in structural redundancy occurs with an incremental increase in the safety

Keywords： Cable-stayed bridge     Extradosed bridge     Redundancy     Stay cable     Safety factor     Reliability analysis    

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On Some Important Problems About Concrete Dams

Zhu Bofang

Strategic Study of CAE 2006, Volume 8, Issue 7,   Pages 21-29

Abstract: or 180 d age is more appropriate for concrete dams than concrete class based on 28 d age . (4) The safetyfactor for compressive stress for the specially heigh concrete arch dam (higher than 200 m) is some

Keywords： concrete dam     cracks     concrete mark     safety factor for compressive stress     equivalent stress for finite element    

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The Complex Method Based on Maximum Entropy Principle and Its Application to the Slope Stability Analysis

Li Liang,Chi Shichun,Lin Gao

Strategic Study of CAE 2005, Volume 7, Issue 4,   Pages 64-68

Abstract: based on maximum entropy principle are used to locate the critical failure surface with the minimum factorof safety of two non-homogeneous soil slopes and the comparisons of the results suggest that the ability

Keywords： entropy     complex method     slope stability     factor of safety    

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Structural stability analysis of Sutong Yangtze River Highway Bridge during construction

Zhao Lei,Li Qiao,Zhang Hong,BU Yizhi

Strategic Study of CAE 2009, Volume 11, Issue 3,   Pages 81-84

Abstract: Stability safety factor and mode were obtained, and some problems on stability for the installation of

Keywords： Sutong cable-stayed bridge     construction     structural stability     safety factor     FEM    

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Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault zones with discontinuity layout optimization: A case study

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1393-1404 doi: 10.1007/s11709-019-0563-1

Abstract: The factor of safety is used to quantitatively assess the stability of the tunnel section.

Keywords： pre-grouting     stability analysis     factor of safety     discontinuity layout optimization    

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Urban design based on public safety-Discussion on safety-based urban design

Kaizhen CAI, Jianguo WANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 219-227 doi: 10.1007/s11709-009-0023-4

Abstract: Because of public safety problems in construction of urban surroundings, this paper expounds the necessityof the study on public safety-based urban design in perspective of modern city.It brings forward the concept of safety-based urban design and attempts to explore the basic connotation

Keywords： urban public safety     urban design     safety-based urban design    

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Title Author Date Type Operation

LSSVM-based approach for refining soil failure criteria and calculating safety factor of slopes

Shiguo XIAO; Shaohong LI

Journal Article

The stability safety factor calibration based on the reliability index

Tong Xiaolong,Fang Zhi

Journal Article

Mechanism of the December 2015 Catastrophic Landslide at the Shenzhen Landfill and Controlling Geotechnical Risks of Urbanization

Yueping Yin,Bin Li,Wenpei Wang,Liangtong Zhan,Qiang Xue,Yang Gao,Nan Zhang,Hongqi Chen,Tiankui Liu,Aiguo Li

Journal Article

c-Fos expression in rat brainstem following intake of sucrose or saccharin

Ke Chen, Jianqun Yan, Jinrong Li, Bo Lv, Xiaolin Zhao

Journal Article

The System Standpoint on Information Safety

Li Daimao

Journal Article

Evaluation and prediction of slope stability using machine learning approaches

Journal Article

The Method and Formula for Stability Factor of Slope with State of Soil Original Stress

Wang Guoti

Journal Article

Evaluation of the stability of terraced slopes in clayey gravel soil using a novel numerical technique

Journal Article

Effect of a less permeable stronger soil layer on the stability of non-homogeneous unsaturated slopes

Nabarun DEY, Aniruddha SENGUPTA

Journal Article

Comparative Study on Structural Redundancy of Cable-Stayed and Extradosed Bridges Through Safety Assessment

Khawaja Ali, Hiroshi Katsuchi, Hitoshi Yamada

Journal Article

On Some Important Problems About Concrete Dams

Zhu Bofang

Journal Article

The Complex Method Based on Maximum Entropy Principle and Its Application to the Slope Stability Analysis

Li Liang,Chi Shichun,Lin Gao

Journal Article

Structural stability analysis of Sutong Yangtze River Highway Bridge during construction

Zhao Lei,Li Qiao,Zhang Hong,BU Yizhi

Journal Article

Quantitatively assessing the pre-grouting effect on the stability of tunnels excavated in fault zones with discontinuity layout optimization: A case study

Xiao YAN, Zizheng SUN, Shucai LI, Rentai LIU, Qingsong ZHANG, Yiming ZHANG

Journal Article

Urban design based on public safety-Discussion on safety-based urban design

Kaizhen CAI, Jianguo WANG

Journal Article