The calculation theories and analysis methods of thermodynamic stability of embankment engineering in cold regions are systematically summarized.The engineering theories and methods taken to control frost heave and th...The calculation theories and analysis methods of thermodynamic stability of embankment engineering in cold regions are systematically summarized.The engineering theories and methods taken to control frost heave and thaw settlement in seasonal frozen soil regions may not be applicable in permafrost regions.The active cooling technology of roadbed should be utilized to limit the effects caused by both climate changes and human engineering activities.The paper mainly discussed the calculation theories and analysis methods of four kinds of embankment structures,i.e.,the crushed-rock embankment,duct-ventilated embankment,thermosyphon embankment,and composite embankment.It is expected that a scientific basis could be provided for the theory,design,and application of embankment constructions in cold regions.展开更多
基于Monte Carlo理论及First Order Reliability Method当量正态化理论借助Fuzzy概率及扩张原则提出了广义模糊随机可靠度理论,结合边坡滑动失效模式及渗透失效模式建立了堤防系统广义模糊随机可靠度算法,就长江荆南主干堤典型断面的可...基于Monte Carlo理论及First Order Reliability Method当量正态化理论借助Fuzzy概率及扩张原则提出了广义模糊随机可靠度理论,结合边坡滑动失效模式及渗透失效模式建立了堤防系统广义模糊随机可靠度算法,就长江荆南主干堤典型断面的可靠性进行分析,得到的规律性认识具有工程安全指导意义。展开更多
A model for repairable standby parallel system consisting of two identical components with common cause failure(CCF)and human error is introduced in this article by a semigroup approach.The stability of the system is ...A model for repairable standby parallel system consisting of two identical components with common cause failure(CCF)and human error is introduced in this article by a semigroup approach.The stability of the system is verified by the pure analysis technique,the co-final related theory and functional analysis method.It is discussed that four different reliability indices of the studied model are consistent with each other both analytically and numerically.The simulations and comparisons demonstrate the validity of the proposed technique.展开更多
基金supported by the Western Project Program of the Chinese Academy of Sciences(KZCX2-XB3-19)the National Natural Science Foundation of China(41230630)+2 种基金the National Basic Research Program of China(2012CB026102)the Knowledge Innovation Program of the Chinese Academy of Sciences(KZCX2-EW-QN301)the Project for Incubation of Specialists inGlaciology and Geocryology of the National Natural Science Foundation of China(J1210003/J0109)
文摘The calculation theories and analysis methods of thermodynamic stability of embankment engineering in cold regions are systematically summarized.The engineering theories and methods taken to control frost heave and thaw settlement in seasonal frozen soil regions may not be applicable in permafrost regions.The active cooling technology of roadbed should be utilized to limit the effects caused by both climate changes and human engineering activities.The paper mainly discussed the calculation theories and analysis methods of four kinds of embankment structures,i.e.,the crushed-rock embankment,duct-ventilated embankment,thermosyphon embankment,and composite embankment.It is expected that a scientific basis could be provided for the theory,design,and application of embankment constructions in cold regions.
文摘基于Monte Carlo理论及First Order Reliability Method当量正态化理论借助Fuzzy概率及扩张原则提出了广义模糊随机可靠度理论,结合边坡滑动失效模式及渗透失效模式建立了堤防系统广义模糊随机可靠度算法,就长江荆南主干堤典型断面的可靠性进行分析,得到的规律性认识具有工程安全指导意义。
基金Heilongjiang Province Higher Educa-tion Basic Research Business Fee Research Project(No.1353MSY YB017)Daqing Normal University Natural Science Foundation(No.19ZR04)。
文摘A model for repairable standby parallel system consisting of two identical components with common cause failure(CCF)and human error is introduced in this article by a semigroup approach.The stability of the system is verified by the pure analysis technique,the co-final related theory and functional analysis method.It is discussed that four different reliability indices of the studied model are consistent with each other both analytically and numerically.The simulations and comparisons demonstrate the validity of the proposed technique.
