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| 1 | 核废料地质贮存介质黏土岩的三维各向异性热-水-力耦合数值模拟显示文摘为了解黏土岩在放射性废料长期贮存中的热-水-力耦合过程,结合MontTerri核废料贮存地下岩石试验工程中黏土岩各种物理量的各向异性特点,应用多孔介质力学耦合理论研究了该黏土岩在加热和冷却全过程中由于热荷载引起的耦合效应场。研究过程考虑温度升高引起的孔隙水黏滞性改变对渗透系数的影响。研究结果表明,岩体力学参数、水力学参数和热传导参数的各向异性特性是影响岩体的温度场、孔隙压力场和应力场分布的最主要因素。各向异性耦合模型与各向同性耦合模型的数值模拟对比研究结果表明:各向异性模型数值结果能更加客观地反映该地下岩石试验工程中黏土岩在受热状态下的热-水-力耦合效应;同时,也表明岩体在加热过程中一直处于受压状态,而在冷却过程中局部会出现拉应力,从而有可能导致拉裂缝的产生。 | 蒋中明 Dashnor Hoxha Franoise Homand | 2007 | 岩石力学与工程学报2007，26，3： | 11 |
| 2 | 核废料贮存库围岩体热响应耦合场研究显示文摘岩体在加热状态的物理力学响应是核废料贮存库安全运行评价的主要指标。结合现场试验成果(温度、孔隙压力和变形),应用多孔连续介质力学理论对热诱导引起的岩体温度场、渗流场和应力场进行了有限元数值对比研究。提出了有限元计算过程中通过调整孔隙率和渗透系数来实现热–水–力耦合分析非线性孔隙弹性的研究方法。现场测试和数值模拟表明:在整个加热过程中,饱和岩体温度和有效应力随时间不断增加,而孔隙压力在加热能量变化初期呈上升趋势,在后期呈下降趋势。 | 蒋中明 Dashnor HOXHA | 2006 | 岩土工程学报2006，28，8： | 10 |
| 3 | Simulation of coupled THM process in surrounding rock mass of nuclear waste repository in argillaceous formation显示文摘To investigate and analyze the thermo-hydro-mechanical(THM) coupling phenomena of a surrounding rock mass in an argillaceous formation, a nuclear waste disposal concept in drifts was represented physically in an in-situ test way. A transversely isotropic model was employed to reproduce the whole test process numerically. Parameters of the rock mass were determined by laboratory and in-situ experiments. Based on the numerical simulation results and in-situ test data, the variation processes of pore water pressure, temperature and deformation of surrounding rock were analyzed. Both the measured data and numerical results reveal that the thermal perturbation is the principal driving force which leads to the variation of pore water pressure and deformations in the surrounding rock. The temperature, pore pressure and deformation of rock mass change rapidly at each initial heating stage with a constant heating power. The temperature field near the heater borehole is relatively steady in the subsequent stages of the heating phase. However, the pore pressure and deformation fields decrease gradually with temperature remaining unchanged condition. It also shows that a transversely isotropic model can reproduce the THM coupling effects generating in the near-field of a nuclear waste repository in an argillaceous formation. | 蒋中明 HOXHA Dashnor HOMAND Fran?oise 陈永贵 | 2015 | Journal of Central South University2015，22，2： | 1 |
| 4 | 基于渗透非线性的黏土岩热–水–力耦合效应研究显示文摘在多孔介质的热–水–力耦合分析中,孔隙率和孔隙水的黏滞性是影响渗透性的主要因素。通过研究孔隙率和孔隙水黏滞性的改变规律,在数值分析时,引入了孔隙率随应力改变和孔隙水黏滞性随温度改变的渗透非线性分析方法。同时研究了数值分析中温度荷载作用下应力边界条件和位移边界条件对温度应力的影响。研究结果表明:温度荷载作用下,数值分析时采用应力约束边界比位移约束边界更合理;考虑渗透非线性情况下得到的孔隙压力计算值与实测值更接近。 | 蒋中明 Dashnor HOXHA | 2009 | 岩土工程学报2009，31，3： | 1 |
| 5 | Saturated and unsaturated behavior modeling of Meuse-Huate/Marne argillite显示文摘 | DASHNOR HOXHA ALBERT GIRAUD FRANCOISE HOMAND | 2007 | Plasticity2007，23，5： | 1 |
| 6 | A short-and long-term rheological model to understand the collapses of iron mines in Lorraine, France 显示文摘 | Dragan Grgic Francoise Homand Dashnor Hoxha | 2003 | Computer and Geotechrtics2003，，30： | 1 |
| 7 | A short- and long-term rheological model to understand the collapses of iron mines in Lorraine, France 显示文摘 | Dragan Grgic Francoise Homand Dashnor Hoxha | 2003 | Computers and Geotechnics2003，30，： | 1 |
| 8 | 放射性三废处理、处置技术——核废料地质贮存介质黏土岩的三维各向异性热-水-力耦合数值模拟显示文摘为了解黏土岩在放射性废料长期贮存中的热,水,力耦合过程,结合MontTerri核废料贮存地下岩石试验工程中黏土岩各种物理量的各向异性特点,应用多孔介质力学耦合理论研究了该黏土岩在加热和冷却全过程中由于热荷载引起的耦合效应场,研究过程考虑温度升高引起的孔隙水黏滞性改变对渗透系数的影响研究结果表明,岩体力学参数、水力学参数和热传导参数的各向异性特性是影响岩体的温度场、孔隙压力场和应力场分布的最主要因素,各向异性耦合模型与各向同性耦合模型的数值模拟对比研究结果表明: | 蒋中明 Dashnor Hoxha Francoise Homand | 2007 | 中国学术期刊文摘2007，13，18： | 0 |
| 9 | Kriging-based reliability analysis of the long-term stability of a deep driftconstructed in the Callovo-Oxfordian claystone显示文摘Callovo-Oxfordian(COx)claystone has been considered as a potential host rock for geological radioactive waste disposal in France(Cigéo project).During the exploitation phase(100 years),the stability of drifts(e.g.galleries/alveoli)within the disposal is assured by the liner,which includes two layers:concrete arch segment and compressible material.The latter exhibits a significant deformation capacity(about 50%)under low stress(<3 MPa).Although the response of these underground structures can be governed by complex thermo-hydro-mechanical coupling,the creep behavior of COx claystone has been considered as the main factor controlling the increase of stress state in the concrete liner and hence the long-term stability of drifts.Therefore,by focusing only on the purely mechanical behavior,this study aims at investigating the uncertainty effect of the COx claystone time-dependent properties on the stability of an alveolus of Cigéo during the exploitation period.To describe the creep behavior of COx claystone,we use Lemaitre’s viscoplastic model with three parameters whose uncertainties are identified from laboratory creep tests.For the reliability analysis,an extension of a well-known Kriging metamodeling technique is proposed to assess the exceedance probability of acceptable stress in the concrete liner of the alveolus.The open-source code Code_Aster is chosen for the direct numerical evaluations of the performance function.The Kriging-based reliability analysis elucidates the effect of the uncertainty of COx claystone on the long-term stability of the concrete liner.Moreover,the role of the compressible material layer between the concrete liner and the host rock is also highlighted. | Ngoc-Tuyen Tran Duc-Phi Do Dashnor Hoxha Minh-Ngoc Vu Gilles Armand | 2021 | Journal of Rock Mechanics and Geotechnical Engineering2021，13，5： | 0 |
| 10 | Damage of Historical Stone Masonry Buildings: Combined Effects of Spatial Variability of Stone Properties and Environmental Conditions显示文摘 | Naima Belayachi Dashnor Hoxha | 2016 | Journal of Civil Engineering and Architecture2016，10，7： | 0 |
| 11 | A Comparative Study on Linear Effective Properties Predictions of an Argillite Rock Using XFEM显示文摘 | Senjun Wu Naima Belayachi Dashnor Hoxha Due-Phi Do | 2015 | Journal of Civil Engineering and Architecture2015，9，7： | 0 |
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