The main objective of this paper is to investigate and analyse the thermo-hydro-mechanical（THM） coupling phenomena and their influences on the repository safety.In this paper,the high-level waste（HLW） disposal con...The main objective of this paper is to investigate and analyse the thermo-hydro-mechanical（THM） coupling phenomena and their influences on the repository safety.In this paper,the high-level waste（HLW） disposal concept in drifts in clay formation with backfilled bentonite buffer is represented numerically using the CODE BRIGHT developed by the Technical University of Catalonia in Barcelona.The parameters of clay and bentonite used in the simulation are determined by laboratory and in situ experiments.The calculation results are presented to show the hydro-mechanical（HM） processes during the operation phase and the THM processes in the after-closure phase.According to the simulation results,the most probable critical processes for the disposal project have been represented and analyzed.The work also provides an input for additional development regarding the design,assessment and validation of the HLW disposal concept.展开更多
This paper introduces a bivariate hysteretic integer-valued autoregressive(INAR)process driven by a bivariate Poisson innovation.It deals well with the buffered or hysteretic characteristics of the data.Model properti...This paper introduces a bivariate hysteretic integer-valued autoregressive(INAR)process driven by a bivariate Poisson innovation.It deals well with the buffered or hysteretic characteristics of the data.Model properties such as sationarity and ergodicity are studied in detail.Parameter estimation problem is also well address via methods of two-step conditional least squares(CLS)and conditional maximum likelihood(CML).The boundary parameters are estimated via triangular grid searching algorithm.The estimation effect is verified through simulations based on three scenarios.Finally,the new model is applied to the offence counts in New South Wales(NSW),Australia.展开更多
基金financed and supported by the German research institute "Gesellschaft für Anlagen-und Reaktorsicherheit (GRS) mbH"
文摘The main objective of this paper is to investigate and analyse the thermo-hydro-mechanical（THM） coupling phenomena and their influences on the repository safety.In this paper,the high-level waste（HLW） disposal concept in drifts in clay formation with backfilled bentonite buffer is represented numerically using the CODE BRIGHT developed by the Technical University of Catalonia in Barcelona.The parameters of clay and bentonite used in the simulation are determined by laboratory and in situ experiments.The calculation results are presented to show the hydro-mechanical（HM） processes during the operation phase and the THM processes in the after-closure phase.According to the simulation results,the most probable critical processes for the disposal project have been represented and analyzed.The work also provides an input for additional development regarding the design,assessment and validation of the HLW disposal concept.
基金supported by the National Natural Science Foundation of China under Grant Nos.12471249 and 12101417the Natural Science Foundation of Jilin Province under Grant Nos.YDZJ202301ZYTS393 and20220101038JC+1 种基金Postdoctoral Foundation of Jilin Province under Grant No.2023337Scientific Research Project of Jilin Provincial Department of Education under Grant No.JJKH20230665KJ。
文摘This paper introduces a bivariate hysteretic integer-valued autoregressive(INAR)process driven by a bivariate Poisson innovation.It deals well with the buffered or hysteretic characteristics of the data.Model properties such as sationarity and ergodicity are studied in detail.Parameter estimation problem is also well address via methods of two-step conditional least squares(CLS)and conditional maximum likelihood(CML).The boundary parameters are estimated via triangular grid searching algorithm.The estimation effect is verified through simulations based on three scenarios.Finally,the new model is applied to the offence counts in New South Wales(NSW),Australia.
