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Geologic Hazard in Southwest Railways and Achievement of Survey and Control

Zhu Ying,Jiang Liangwen,Qu Ke,Li Guanghui,Cao Huaping

Strategic Study of CAE 2008, Volume 10, Issue 4,   Pages 29-37

Abstract: plateau and is close to east side of collision zone between India plate and Eurasian plate where the geologicstructure is quite complicated with serious geologic hazard.railway and Yu-Huai railway, etc., in complicated southwest mountainous region, the general condition of geologichazard of southwest railway is summarized and the railway geologic survey and engineering control techniqueexperience for several kinds of main geologic hazard are systematically presented.

Keywords： southwest area     railway     geologic hazard     survey     control technique    

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Features of seismic hazard in large dam projects and strong motion monitoring of large dams

Martin WIELAND,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 1,   Pages 56-64 doi: 10.1007/s11709-010-0005-6

Abstract: The different features of earthquake hazard are presented, i.e., ground shaking, faulting and mass movements

Keywords： seismic hazard     arch dam     concrete face rockfill dam     strong motion instrumentation     reservoir-triggered    

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Miscellaneous dangerous mountain geological survey and the line selection techniques

He Huawu,Zeng Qiangyun

Strategic Study of CAE 2009, Volume 11, Issue 12,   Pages 9-12

Abstract: ">Yichang-Wanzhou Railway which locates in complicated and dangerous mountain areas has complicated geologicconditions and extremely bad geologic phenomena.to provide some references for similar investigation and route selection by briefly introducing the geologiccharacteristics, the integrated methods for geologic survey and route selection.

Keywords： Yichang-Wanzhou Railway     geologic characteristics     geologic investigation     geology route selection    

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Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Venkatesh KODUR, M. Z. NASER

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 46-60 doi: 10.1007/s11709-020-0676-6

Abstract: This paper reviews the fire problem in critical transportation infrastructures such as bridges and tunnels. The magnitude of the fire problem is illustrated, and the recent increase in fire problems in bridges and tunnels is highlighted. Recent research undertaken to address fire problems in transportation structures is reviewed, as well as critical factors governing the performance of those structures. Furthermore, key strategies recommended for mitigating fire hazards in bridges and tunnels are presented, and their applicability to practical situations is demonstrated through a practical case study. Furthermore, research needs and emerging trends for enhancing the “state-of-the-art” in this area are discussed.

Keywords： fire hazard     bridges     tunnels     fire resistance     mitigation strategies     transportation infrastructure    

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Finite element simulation for elastic dislocation of the North-Tehran fault: The effects of geologic

Pooya ZAKIAN; Hossein ASADI HAYEH

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 4,   Pages 533-549 doi: 10.1007/s11709-022-0802-8

Abstract: The present study uses the finite element method for simulating the crustal deformation due to the dislocation of a segment of the North-Tehran fault located in the Karaj metropolis region. In this regard, a geological map of Karaj that includes the fault segment is utilized in order to create the geometry of finite element model. First, finite element analysis of homogeneous counterpart of the fault’s domain with two different sections was performed, and the results were compared to those of Okada’s analytical solutions. The fault was modeled with the existing heterogeneity of the domain having been considered. The influences of both uniform and non-uniform slip distributions were investigated. Furthermore, three levels of simplification for geometric creation of geological layers’ boundaries were defined in order to evaluate the effects of the geometric complexity of the geological layering on the displacement responses obtained with the finite element simulations. In addition to the assessment of slip distribution, layering complexity and heterogeneity, the results demonstrate both the capability and usefulness of the proposed models in the dislocation analysis for the Karaj segment of North-Tehran fault.

Keywords： finite element method     fault dislocation     slip distribution     the North-Tehran fault     heterogeneity     geological layering    

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Predicting non-carcinogenic hazard quotients of heavy metals in pepper (

Marzieh Mokarram, Hamid Reza Pourghasemi, Huichun Zhang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 6, doi: 10.1007/s11783-020-1331-0

Abstract: . • The target hazard quotient (THQ) indices followed the order of Pb>Zn>>Cd » Ni. • Relationships existregression method was then employed to determine the most optimal spectral bands for estimating the target hazard

Keywords： Heavy metals     Plants     Target Hazard Quotient (THQ)     Principal Component Analysis (PCA)     Random search     Electromagnetic    

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Geoenvironmental Hazard Risks and Monitoring Technologies for Marine Carbon Sequestration

Zhang Shaopeng, Liu Xiaolei, Cheng Guangwei, Zhu Chaoqi, Li Qingping, He Yufa

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 122-130 doi: 10.15302/J-SSCAE-2023.03.011

Abstract:

Marine carbon geological sequestration is crucial for achieving carbon peaking and carbon neutralization in China. However, there exist risks of carbon dioxide (CO2) leakage that leads to seabed geological disasters, severely threatening the safety of marine engineering. Therefore, it is of great practical significance to monitor the environmental geology of sequestration areas. This study briefly introduces several demonstration cases of marine carbon geological sequestration and explores the disaster mechanism associated with CO2 leakage in seabed sequestration areas. It also sorts out the marine environment monitoring technologies in typical CO2 controlled release tests via examples and analyzes the environmental geology monitoring technologies related to CO2 leakage, including seismic investigation and monitoring, resistivity monitoring, gravity monitoring, seabed deformation monitoring, and sediment pore pressure monitoring. Moreover, the prospects of China’s marine carbon geological sequestration and its environmental geology monitoring are presented. We suggest that long-time, low-cost, and real-time monitoring technologies should be developed, a systematic and intelligent multi-dimensional disaster identification model should be established in combination with the baseline investigation of the sequestration areas, and a multi-faceted, multi-level, and multi-disaster monitoring and forecasting system should be built.

Keywords： marine carbon geological sequestration     environmental geology     CO2 leakage     hazard risks     monitoring    

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Necessity of integrated methodology for hazard mitigation of quake lakes: case study of the Wenchuan

Xudong FU, Fan LIU, Guangqian WANG, Wenjie XU, Jianxin ZHANG

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 1-10 doi: 10.1007/s11709-011-0099-5

Abstract: More than half of these lakes were identified to be of moderate or high hazard levels, so activitiesneeded to be undertaken for hazard mitigation of potential flooding.presents the mitigation processes of quake lake hazards, which involve various techniques such as rapid hazardhydrologic and geological data and the nature of emergency situations raise substantial challenges in the hazardautomatic monitoring network, hydrologic models, and hydrodynamic models with a comprehensive indicator for hazard

Keywords： quake lake     hazard mitigation     dam failure     emergency     Tangjiashan    

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Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 90-97 doi: 10.1007/s11709-010-0008-3

Abstract: Dam constructions worldwide are designed and constructed in view of the strictest safety aspects for all static and dynamic load cases. As experience shows, however, formation of cracks in the “homogeneos concrete” as well as unsatisfactory compound behavior of lift joints are not to be excluded. These zones of weakness especially on the upstream side of the dam— exposed to high water pressure (static and dynamic)— represent an increased risk of safety. The main investigation, apart from the computation of the dynamic effects on the dam as a global structure, focuses on the stability analysis of a pressure-water filled crack configuration subjected to “dynamic loading” in the form of seismic action on the dam-reservoir-system and alternatively by “impact spot-loading” within sectors of the reservoir. A fracture mechanics based analysis shows an excessive potential of damage for the afflicted structure.

Keywords： dam-reservoir     earthquake     impact     cracking     fracture mechanics    

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Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 839-848 doi: 10.1007/s11783-012-0409-8

Abstract: In this paper, it proposed an index system for hazard and vulnerability evaluations of water distributionUsing the method proposed herein, both the hazard index and vulnerability index were calculated for eachbetween the peak concentration of contaminant and the total absorption are the most important factors in hazard

Keywords： water distribution network     hazard     vulnerability     contaminant accident    

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Major hazard sources analysis and prevention measures of packagingemulsion explosive production line

Wu Xiaomeng

Strategic Study of CAE 2014, Volume 16, Issue 11,   Pages 82-85

Abstract: Took into account of technique characteristics of packaging emulsion explosive, major hazard sources

Keywords： emulsion explosive     major hazard sources     prevention measures    

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Modeling technology digital geologic stratum body in the proportion of pinch in 3D GIS

Dong Zhi

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 76-82

Abstract:

Geological prospecting data into three-dimensional system and various three-dimensional modeling methods were used to reason and connect the formation of stratum automatically to generate three-dimensional model of formation. The modeling methods can easily liberate geological workers in the field of water conservancy and hydropower from the heavy geological information access and geological interpretation of the manual labor, thus enhance the speed of three-dimensional stratum modeling and also the quality of construction.

Keywords： three-dimensional digital geologic model     virtual borehole     multi-proportion of pinch     automatical modeling    

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The Index System Design of the High Building Fire Hazard Assessment

Liu Aihua,Shi Shiliang,Wu Chao

Strategic Study of CAE 2006, Volume 8, Issue 9,   Pages 90-94

Abstract: fire development and stretch，and establishes the multiple-levels index system of high building fire hazardscientific basis for safe management of building, and can also lay the foundation for high building fire hazard

Keywords： high building fire hazard     index system     the fire site scene     stage partition for fire    

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Hydraulic winder safety design based on hazard analysis and risk assessment

Peng Youduo,Gao Guanghui,Guo Yingfu,Wu Lixin,Li Xin

Strategic Study of CAE 2010, Volume 12, Issue 2,   Pages 70-75

Abstract:

In this paper, the safety capability was briefly introduced, the hazardanalysis and risk assessment through which the hazard value confirmed and the most important subsystems

Keywords： mine hydraulic winder     safety design     hazard analysis     risk assessment     safety reliability    

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Long-term behavior and safety assessment of Sance Rockfill Dam

Marta DOLEZALOVA, Ivo HLADIK

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 79-89 doi: 10.1007/s11709-010-0010-9

Abstract: including slope stability analysis and estimation of the clay core cracking and hydraulic fracturing hazard

Keywords： rockfill dam     path dependence     creep     calibration     cracking     hydraulic fracturing hazard    

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Title Author Date Type Operation

Geologic Hazard in Southwest Railways and Achievement of Survey and Control

Zhu Ying,Jiang Liangwen,Qu Ke,Li Guanghui,Cao Huaping

Journal Article

Features of seismic hazard in large dam projects and strong motion monitoring of large dams

Martin WIELAND,

Journal Article

Miscellaneous dangerous mountain geological survey and the line selection techniques

He Huawu,Zeng Qiangyun

Journal Article

Fire hazard in transportation infrastructure: Review, assessment, and mitigation strategies

Venkatesh KODUR, M. Z. NASER

Journal Article

Finite element simulation for elastic dislocation of the North-Tehran fault: The effects of geologic

Pooya ZAKIAN; Hossein ASADI HAYEH

Journal Article

Predicting non-carcinogenic hazard quotients of heavy metals in pepper (

Marzieh Mokarram, Hamid Reza Pourghasemi, Huichun Zhang

Journal Article

Geoenvironmental Hazard Risks and Monitoring Technologies for Marine Carbon Sequestration

Zhang Shaopeng, Liu Xiaolei, Cheng Guangwei, Zhu Chaoqi, Li Qingping, He Yufa

Journal Article

Necessity of integrated methodology for hazard mitigation of quake lakes: case study of the Wenchuan

Xudong FU, Fan LIU, Guangqian WANG, Wenjie XU, Jianxin ZHANG

Journal Article

Hazard potential of zones of weakness in gravity dams under impact loading conditions

Herbert LINSBAUER

Journal Article

Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Journal Article

Major hazard sources analysis and prevention measures of packagingemulsion explosive production line

Wu Xiaomeng

Journal Article

Modeling technology digital geologic stratum body in the proportion of pinch in 3D GIS

Dong Zhi

Journal Article

The Index System Design of the High Building Fire Hazard Assessment

Liu Aihua,Shi Shiliang,Wu Chao

Journal Article

Hydraulic winder safety design based on hazard analysis and risk assessment

Peng Youduo,Gao Guanghui,Guo Yingfu,Wu Lixin,Li Xin

Journal Article

Long-term behavior and safety assessment of Sance Rockfill Dam

Marta DOLEZALOVA, Ivo HLADIK

Journal Article