Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00037
Kun Gong, Rui Chen, Mengyu He, Chuancheng Song
With the development of metropolises, the application of environmental engineering in urban management is increasingly more apparent. When examining urban land use, not only the economic cost but the environmental cost of urban land-using project should be taken into account. In this paper, the Ecosystem Service Evaluation model group is established to understand the comprehensive costs of land-using project. Environment Development Index (EDI) and Environment Carrying Capability (ECC) are defined respectively to evaluate biosphere quality and the ability of biosphere to provide service. According to the ecosystem theory, Ecosystem Service Evaluation model is established based on logistic regression to explore how does ECC change with the variation of EDI and Environmental Cost Accounting model is established to transfer the decrease of ECC into the environment cost. Based on the principle of productivity change approach and feedback theory, the comprehensive cost considering environmental factors can be calculated by integrating the time function of ECC.
{"title":"An Urban Land-using Project Evaluation Approach Considering Environmental Cost","authors":"Kun Gong, Rui Chen, Mengyu He, Chuancheng Song","doi":"10.1109/ICUEMS50872.2020.00037","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00037","url":null,"abstract":"With the development of metropolises, the application of environmental engineering in urban management is increasingly more apparent. When examining urban land use, not only the economic cost but the environmental cost of urban land-using project should be taken into account. In this paper, the Ecosystem Service Evaluation model group is established to understand the comprehensive costs of land-using project. Environment Development Index (EDI) and Environment Carrying Capability (ECC) are defined respectively to evaluate biosphere quality and the ability of biosphere to provide service. According to the ecosystem theory, Ecosystem Service Evaluation model is established based on logistic regression to explore how does ECC change with the variation of EDI and Environmental Cost Accounting model is established to transfer the decrease of ECC into the environment cost. Based on the principle of productivity change approach and feedback theory, the comprehensive cost considering environmental factors can be calculated by integrating the time function of ECC.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121882702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00074
Bao Lei
With the establishment of recent information system networks, maritime vessel trajectory data are becoming increasingly available. Spatial pattern mining in these data can measure the behaviour of ships in space and time and can be used in traffic monitoring or other security purpose. The difficulty of this topic is that it needs to deal with both highdimensional data and huge amount of data.In this paper, a cooccurrence pattern mining algorithm based on Mapreduce architecture is presented. The algorithm is focused on the mining on spatial co-occurrence pattern, and implemented in the parallel partitioning architecture. The experiments on real data sets show that the large-scale ship trajectory data can be processed effectively.
{"title":"Apriori-based Spatial Pattern Mining Algorithm for Big Data","authors":"Bao Lei","doi":"10.1109/ICUEMS50872.2020.00074","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00074","url":null,"abstract":"With the establishment of recent information system networks, maritime vessel trajectory data are becoming increasingly available. Spatial pattern mining in these data can measure the behaviour of ships in space and time and can be used in traffic monitoring or other security purpose. The difficulty of this topic is that it needs to deal with both highdimensional data and huge amount of data.In this paper, a cooccurrence pattern mining algorithm based on Mapreduce architecture is presented. The algorithm is focused on the mining on spatial co-occurrence pattern, and implemented in the parallel partitioning architecture. The experiments on real data sets show that the large-scale ship trajectory data can be processed effectively.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127697171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00139
Y. Xie, Z.Q. Hou, P. Li, J.H. Chen, H. Feng
The study on comprehensive risk assessment of gravity-wharf structural failure is of great significance in engineering application. In this paper, the main economic, social and environmental risks caused by the failure of gravity wharf are identified by using the fishbone diagram method, and the main failure consequences of gravity-wharf structure such as life loss, economic loss, social and environmental impact are quantified, and AHP method is used to determine the weight. The linear weighted sum method is used to construct the comprehensive assessment coefficient of consequences and the assessment standard of failure risk level of gravity-wharf structure is established based on ALARP principle. Combined with the overall failure probability analysis of gravity-wharf serial system based on Rosenblueth method, the comprehensive assessment system of the economic, social and environmental risks of gravity-wharf structural failure which is established in this paper, can realize the comprehensive assessment of the economic, social and environmental risks of gravity-wharf structural failure. The study of caisson wharf structure shows that the comprehensive risk level caused by its failure is negligible risk, which can be acceptable.
{"title":"Comprehensive risk analysis of economy, society and environment for the structural failure of gravity wharf","authors":"Y. Xie, Z.Q. Hou, P. Li, J.H. Chen, H. Feng","doi":"10.1109/ICUEMS50872.2020.00139","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00139","url":null,"abstract":"The study on comprehensive risk assessment of gravity-wharf structural failure is of great significance in engineering application. In this paper, the main economic, social and environmental risks caused by the failure of gravity wharf are identified by using the fishbone diagram method, and the main failure consequences of gravity-wharf structure such as life loss, economic loss, social and environmental impact are quantified, and AHP method is used to determine the weight. The linear weighted sum method is used to construct the comprehensive assessment coefficient of consequences and the assessment standard of failure risk level of gravity-wharf structure is established based on ALARP principle. Combined with the overall failure probability analysis of gravity-wharf serial system based on Rosenblueth method, the comprehensive assessment system of the economic, social and environmental risks of gravity-wharf structural failure which is established in this paper, can realize the comprehensive assessment of the economic, social and environmental risks of gravity-wharf structural failure. The study of caisson wharf structure shows that the comprehensive risk level caused by its failure is negligible risk, which can be acceptable.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132639402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.9184708
Ammar Jafaripournimchahi, Wusheng Hu, Lu Sun
Utilizing vehicles' previous transmitted motion information through information communication technologies (ICT) wirelessly an anticipation-memory (AM) car following model is derived to investigate the effects of anticipating driving behaviour on vehicles' position, velocity, acceleration. The changes of space headway, velocity differences, and memory of driving to the preceding vehicle are presented as a parameters of driving anticipation in autonomous and connected vehicles (ACV) environment. The linear stability is carried out to study the qualitative properties of the AM model. The linear and nonlinear analysis support our newly developed model to illustrate the anticipation driving parameter based on previous motion information as feedback of driving in V2V environment which can effectively enhance the traffic flow stability, and the capacity of roads. All results depict that the AM model can potentially decrease the velocity fluctuations in a traffic flow system comparing to previous existing models.
{"title":"Nonlinear stability analysis for an anticipation-memory car following model in the era of autonomous and connected vehicles","authors":"Ammar Jafaripournimchahi, Wusheng Hu, Lu Sun","doi":"10.1109/ICUEMS50872.2020.9184708","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.9184708","url":null,"abstract":"Utilizing vehicles' previous transmitted motion information through information communication technologies (ICT) wirelessly an anticipation-memory (AM) car following model is derived to investigate the effects of anticipating driving behaviour on vehicles' position, velocity, acceleration. The changes of space headway, velocity differences, and memory of driving to the preceding vehicle are presented as a parameters of driving anticipation in autonomous and connected vehicles (ACV) environment. The linear stability is carried out to study the qualitative properties of the AM model. The linear and nonlinear analysis support our newly developed model to illustrate the anticipation driving parameter based on previous motion information as feedback of driving in V2V environment which can effectively enhance the traffic flow stability, and the capacity of roads. All results depict that the AM model can potentially decrease the velocity fluctuations in a traffic flow system comparing to previous existing models.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115354939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The security management of information system refers to the establishment of effective protection mechanism for hardware, software and data in the system to ensure the normal operation of the system, free from accidental or malicious reasons, such as: damage, change, disclosure and other acts or natural factors, to ensure that the system can operate continuously and reliably, and the user-oriented service is not interrupted. In view of the current situation of frequent network security problems, unclear security situation and weak security awareness, this paper proposes and implements an information system security management system based on big data technology under the micro service mode. This system takes information system security operation and maintenance protection as the core idea, combined with data collection, collection and processing, resource allocation, health monitoring, information mining, situation analysis, emergency response as the technical main body, and provides an implementable security management system construction method for software security under the micro service architecture. The application results in this study show that the construction of the system greatly reduces the total work of the operation and maintenance personnel, improves the effective monitoring of the system by the management personnel, and plays a positive role in promoting the security maintenance of the entire information system.
{"title":"Security Management System Construction of Information System Based on Big Data Analysis","authors":"Kunying Li, Yu Ding, Xiaolian Li, Xu He, Wenting Zhang, Wenling Li","doi":"10.1109/ICUEMS50872.2020.00120","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00120","url":null,"abstract":"The security management of information system refers to the establishment of effective protection mechanism for hardware, software and data in the system to ensure the normal operation of the system, free from accidental or malicious reasons, such as: damage, change, disclosure and other acts or natural factors, to ensure that the system can operate continuously and reliably, and the user-oriented service is not interrupted. In view of the current situation of frequent network security problems, unclear security situation and weak security awareness, this paper proposes and implements an information system security management system based on big data technology under the micro service mode. This system takes information system security operation and maintenance protection as the core idea, combined with data collection, collection and processing, resource allocation, health monitoring, information mining, situation analysis, emergency response as the technical main body, and provides an implementable security management system construction method for software security under the micro service architecture. The application results in this study show that the construction of the system greatly reduces the total work of the operation and maintenance personnel, improves the effective monitoring of the system by the management personnel, and plays a positive role in promoting the security maintenance of the entire information system.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114798396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00046
Wang Zhiwei, X. Du, Weibin Ma, Luo Peng
Based on thermodynamic and energy dissipation principles, and directed towards the repeated “tensile-compressive-tensile-compressive” stress of the concrete structure of the high-speed railway tunnel base, double scalar damage variables are defined, the hardening function is introduced, the elastoplastic Helmholtz free energy is amended, and the nonlinear stochastic damage constitutive model that describes strainsoftening of the concrete under tensile and compressive conditions is derived. In the effective stress space, the evolution rule of the damage variables is derived based on the normality rule of the plastic mechanics. After solving the probability density evolution equation, the numerical analysis solving algorithm of “elastic prediction-plastic amendment-damage amendment” was established. Further, secondary development of the program is performed, which realizes the numerical computation of the stochastic damage constitutive model. By comparing with the indoor uniaxial tensile and uniaxial compressive test results obtained in previous studies, the accuracy and the adaptability of the derived stochastic damage constitutive model were verified. This model not only reflects the stress–strain relationship of the concrete when in tension or compression in terms of the mean value but also simulates the discrete range in terms of probability, which closely reflects the non-linearity and randomness of the loading behaviour of the concrete. Through algorithm analysis, this model can be adopted to calculate the damage evolution rules and fatigue damage life of the tunnel base concrete.
{"title":"Stochastic Damage Model of the Concrete Structure of the High-speed Railway Tunnel Base","authors":"Wang Zhiwei, X. Du, Weibin Ma, Luo Peng","doi":"10.1109/ICUEMS50872.2020.00046","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00046","url":null,"abstract":"Based on thermodynamic and energy dissipation principles, and directed towards the repeated “tensile-compressive-tensile-compressive” stress of the concrete structure of the high-speed railway tunnel base, double scalar damage variables are defined, the hardening function is introduced, the elastoplastic Helmholtz free energy is amended, and the nonlinear stochastic damage constitutive model that describes strainsoftening of the concrete under tensile and compressive conditions is derived. In the effective stress space, the evolution rule of the damage variables is derived based on the normality rule of the plastic mechanics. After solving the probability density evolution equation, the numerical analysis solving algorithm of “elastic prediction-plastic amendment-damage amendment” was established. Further, secondary development of the program is performed, which realizes the numerical computation of the stochastic damage constitutive model. By comparing with the indoor uniaxial tensile and uniaxial compressive test results obtained in previous studies, the accuracy and the adaptability of the derived stochastic damage constitutive model were verified. This model not only reflects the stress–strain relationship of the concrete when in tension or compression in terms of the mean value but also simulates the discrete range in terms of probability, which closely reflects the non-linearity and randomness of the loading behaviour of the concrete. Through algorithm analysis, this model can be adopted to calculate the damage evolution rules and fatigue damage life of the tunnel base concrete.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114712413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/icuems50872.2020.00144
Zhihua Ou
In the process of teaching in colleges and universities, physical education is a very important part, which can lay a foundation for the society to cultivate comprehensive talents. There are some safety risks in physical education in colleges and universities, and affected by many factors, students are easy to be hurt in physical activities. Therefore, college physical education needs to strengthen the control and management of safety risk factors, so as to effectively protect the safety of students. This article mainly analyzed the safety risk factors of college physical education, outlined the definition and specific concepts of safety risk management of physical education, introduced the main categories of safety risk factors of physical education, and proposed specific countermeasures for the risk management, so as to provide some reference for related educators.
{"title":"Discussion on Safety Risk Factors and Management of College Physical Education","authors":"Zhihua Ou","doi":"10.1109/icuems50872.2020.00144","DOIUrl":"https://doi.org/10.1109/icuems50872.2020.00144","url":null,"abstract":"In the process of teaching in colleges and universities, physical education is a very important part, which can lay a foundation for the society to cultivate comprehensive talents. There are some safety risks in physical education in colleges and universities, and affected by many factors, students are easy to be hurt in physical activities. Therefore, college physical education needs to strengthen the control and management of safety risk factors, so as to effectively protect the safety of students. This article mainly analyzed the safety risk factors of college physical education, outlined the definition and specific concepts of safety risk management of physical education, introduced the main categories of safety risk factors of physical education, and proposed specific countermeasures for the risk management, so as to provide some reference for related educators.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"841 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116150850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00039
Yingda Wang
There are rich rural tourism resources in Southern Anhui Province, including water tourism resources, ancient town tourism resources, opera tourism resources, etc. These tourism resources lead to the promoting of the economic development, labor employment and regional exchange in Southern Anhui Province. Since February 2014, the planning outline for the construction and development of the international cultural tourism demonstration in southern Anhui Province has been officially promulgated and implemented. It is proposed to build the zone into a world-class tourism destination and provide a demonstration for the construction of a beautiful China. The development of Wannan international cultural tourism demonstration area has entered a fast track. However, due to the rapid development of rural tourism in southern Anhui Province, a series of achievements have been made, and at the same time, problems related to ecological environment protection have gradually emerged. How to protect the ecological environment will become the key to promote the sustainable development of rural tourism in southern Anhui Province in the future.
{"title":"On the Coordinated Development Mechanism of Rural Tourism Development and Ecological Environment Protection in the International Cultural Tourism Demonstration Area in Southern Anhui Province","authors":"Yingda Wang","doi":"10.1109/ICUEMS50872.2020.00039","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00039","url":null,"abstract":"There are rich rural tourism resources in Southern Anhui Province, including water tourism resources, ancient town tourism resources, opera tourism resources, etc. These tourism resources lead to the promoting of the economic development, labor employment and regional exchange in Southern Anhui Province. Since February 2014, the planning outline for the construction and development of the international cultural tourism demonstration in southern Anhui Province has been officially promulgated and implemented. It is proposed to build the zone into a world-class tourism destination and provide a demonstration for the construction of a beautiful China. The development of Wannan international cultural tourism demonstration area has entered a fast track. However, due to the rapid development of rural tourism in southern Anhui Province, a series of achievements have been made, and at the same time, problems related to ecological environment protection have gradually emerged. How to protect the ecological environment will become the key to promote the sustainable development of rural tourism in southern Anhui Province in the future.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"210 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121071203","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/ICUEMS50872.2020.00068
Huang Qinwei, Li Junfeng, Guo Jianlong, Zhou Qingyun
With continuous application of work flow management systems in enterprises where higher requirements for work flow management systems are proposed, work flow management systems cannot determine all processes in advance, which are not static during execution. Therefore, in perspective of application, work flow engine based on finite state machine to build work flow model as above is designed as well as implemented in this paper so that changeable work flows and complex business logic can be adapted to reduce work flow and difficulty of users and developers. Each step of work flow can be regarded as a state and a process as a state machine. Besides it, complex businesses can also be described as shunting, aggregation, parallelism, and jump operations of state machine. What’s more, inherent essence and external manifestations of dynamic modification and adaptive work flow dynamics are analyzed at first, and distributed data management language namely ActiveXML is introduced as work flow model definition language. Additionally, work flow model that can be dynamically modified is created as well. Besides, adaptive work flow engine framework is designed, where dynamic modification rules and dynamic modification algorithms are given to process, and how to ensure consistency as well as correctness of data running in work flow system after dynamic modification is discussed.
{"title":"Application of ActiveXML in Adaptive Work Flow Engine Design","authors":"Huang Qinwei, Li Junfeng, Guo Jianlong, Zhou Qingyun","doi":"10.1109/ICUEMS50872.2020.00068","DOIUrl":"https://doi.org/10.1109/ICUEMS50872.2020.00068","url":null,"abstract":"With continuous application of work flow management systems in enterprises where higher requirements for work flow management systems are proposed, work flow management systems cannot determine all processes in advance, which are not static during execution. Therefore, in perspective of application, work flow engine based on finite state machine to build work flow model as above is designed as well as implemented in this paper so that changeable work flows and complex business logic can be adapted to reduce work flow and difficulty of users and developers. Each step of work flow can be regarded as a state and a process as a state machine. Besides it, complex businesses can also be described as shunting, aggregation, parallelism, and jump operations of state machine. What’s more, inherent essence and external manifestations of dynamic modification and adaptive work flow dynamics are analyzed at first, and distributed data management language namely ActiveXML is introduced as work flow model definition language. Additionally, work flow model that can be dynamically modified is created as well. Besides, adaptive work flow engine framework is designed, where dynamic modification rules and dynamic modification algorithms are given to process, and how to ensure consistency as well as correctness of data running in work flow system after dynamic modification is discussed.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122883629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-01DOI: 10.1109/icuems50872.2020.00161
Shi Benjun, Jiang guangyong, Shi Benxia
In order to explore the influence of section change of roadway on the development of shock wave in gas explosion accident.Based on the k-c turbulence model, a numerical simulation study of the effect of different abrupt reduction angle a on the propagation characteristics (overpressure, etc.) of the impact wave within the variation of the roadway cross section was carried out using fluent software. The results show that: a has obvious effect on the propagation distance of shock wave in the roadway. With the increase of a angle, the effect of oblique pressure in the roadway on the vortex suppression is more obvious.
{"title":"Numerical Simulation of the Propagation Characteristics of Blast Shock Wave by the Variation of Roadway Section","authors":"Shi Benjun, Jiang guangyong, Shi Benxia","doi":"10.1109/icuems50872.2020.00161","DOIUrl":"https://doi.org/10.1109/icuems50872.2020.00161","url":null,"abstract":"In order to explore the influence of section change of roadway on the development of shock wave in gas explosion accident.Based on the k-c turbulence model, a numerical simulation study of the effect of different abrupt reduction angle a on the propagation characteristics (overpressure, etc.) of the impact wave within the variation of the roadway cross section was carried out using fluent software. The results show that: a has obvious effect on the propagation distance of shock wave in the roadway. With the increase of a angle, the effect of oblique pressure in the roadway on the vortex suppression is more obvious.","PeriodicalId":285594,"journal":{"name":"2020 International Conference on Urban Engineering and Management Science (ICUEMS)","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125214263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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