为揭示地质灾害（滑坡）中滑移界面的水-热-力多尺度接触摩擦力学机制，首先针对滑移界面的多孔隙、强随机接触特征，基于Gumbel概率分布描述单个微凸体蠕变累积到整个界面起滑全过程的界面结构演化规律，并结合体积接触理论，实现摩擦过程中界面结构的演化过程表征。同时，针对含水界面，考虑了含水对界面变形的影响，进一步完善摩擦过程中界面结构演化的表征。然后，考虑蠕变本构描述单个接触微凸体上应力的演化，对已有速率-状态模型进一步完善；在此基础上，结合界面结构演化过程以及单个接触微凸体上局部应力状态，建立水-力-热耦合作用下滑移界面摩擦理论模型。该模型揭示了界面宏观结构与微观局部应力演化对滑移界面接触摩擦行为的影响机制。该数据集反映了界面宏观结构演化与微观局部应力变化对滑移界面摩擦行为的影响规律，可为滑坡等地质灾害中滑移界面摩擦机理研究及多场耦合数值模拟提供数据支撑与理论参考。
\n本数据以Excel格式（*.xlsx）和origin源文件（*.opju）存储。数据文件中不同工作表为不同材料的实验数据与模型预测对比结果。", "ds_source": "
本数据集来源于水-力-热耦合作用下滑移界面摩擦理论模型的计算结果以及其他研究人员的野外实测数据。文献列表如下：
\n1、Di Toro G, Han R, Hirose T, et al. Fault lubrication during earthquakes[J]. Nature, 2011,471(7339): 494-498.
\n2、Chen X, Elwood Madden A S, Reches Z. The frictional strength of talc gouge in high-velocity shear experiments[J]. Journal of Geophysical Research: Solid Earth, 2017, 122(5): 3661-3676.
\n3、Dieterich J H. Time-dependent friction and the mechanics of stick-slip[J]. Pure and applied geophysics, 1978, 116: 790-806.
\n4、Di Toro G, Aretusini S, Cornelio C, et al. Friction during earthquakes: 25 years of experimental studies [J]. IOP Conference Series: Earth and Environmental Science, 2021, 861(5): 052032.
", "ds_process_way": "（1）针对滑移界面的多孔隙、强随机接触特征，基于Gumbel概率分布描述单个微凸体蠕变累积到整个界面起滑全过程的界面结构演化规律，并结合体积接触理论，实现摩擦过程中界面结构的演化过程表征。同时，针对含水界面，考虑了含水对界面变形的影响，进一步完善摩擦过程中界面结构演化的表征。然后，考虑蠕变本构描述单个接触微凸体上应力的演化，对已有速率-状态模型进一步完善；在此基础上，结合界面结构演化过程以及单个接触微凸体上局部应力状态，建立水-力-热耦合作用下滑移界面摩擦理论模型；
\n（2）基于水-力-热耦合作用下滑移界面摩擦理论模型计算得到本数据集，然后将模型预测结果与已有实验数据进行对比，进而验证该模型的准确性。
", "ds_quality": "模型预测结果与黄土、现场采集材料以及砂土三种材料的摩擦实验数据进行了对比，验证了模型的准确性。水-力-热耦合作用下滑移界面摩擦理论模型能够对不同饱和度（含水量）材料的界面摩擦进行更好的预测描述，原因在于改进的模型考虑了含水对界面宏观结构与微观局部应力的影响，这是以往其他模型没有考虑的，更接近含水界面接触与摩擦的真实情况。因此，本数据集为滑坡等地质灾害滑移界面摩擦机理研究提供可靠的数据支撑。
", "ds_acq_start_time": null, "ds_acq_end_time": null, "ds_acq_place": "", "ds_acq_lon_east": null, "ds_acq_lat_south": null, "ds_acq_lon_west": null, "ds_acq_lat_north": null, "ds_acq_alt_low": null, "ds_acq_alt_high": null, "ds_share_type": "login-access", "ds_total_size": 309252421, "ds_files_count": 0, "ds_format": "*.xlsx/*. Opju/*.tiff", "ds_space_res": "", "ds_time_res": "", "ds_coordinate": "无", "ds_projection": "", "ds_thumbnail": "55f5d352-072a-4879-970d-fcd63bfbfc49.jpeg", "ds_thumb_from": 0, "ds_ref_way": "", "paper_ref_way": "", "ds_ref_instruction": "", "ds_from_station": "", "organization_id": "bf138922-7121-438c-8d1b-19d5f751c907", "ds_serv_man": "李红星", "ds_serv_phone": "0931-4967592", "ds_serv_mail": "ncdc@lzb.ac.cn", "doi_value": "", "subject_codes": [ "170.50", "410.30" ], "quality_level": 0, "publish_time": "2026-06-04 11:37:07", "last_updated": "2026-06-04 11:37:07", "protected": false, "protected_to": null, "lang": "zh", "cstr": "11738.11.ncdc.loess.db7339.2026", "i18n": { "en": { "title": "Dataset of a theoretical friction model for sliding interfaces under hydro-mechanical-thermal coupling", "ds_format": "*.xlsx/*. Opju/*.tiff", "ds_source": "The dataset is derived from the computational results of a theoretical friction model for sliding interfaces under hydro–mechanical–thermal coupling, as well as field measurement data collected by other researchers. The list of relevant references is as follows:\r\n1、Di Toro G, Han R, Hirose T, et al. Fault lubrication during earthquakes[J]. Nature, 2011,471(7339): 494-498. \r\n2、Chen X, Elwood Madden A S, Reches Z. The frictional strength of talc gouge in high-velocity shear experiments[J]. Journal of Geophysical Research: Solid Earth, 2017, 122(5): 3661-3676. \r\n3、Dieterich J H. Time-dependent friction and the mechanics of stick-slip[J]. Pure and applied geophysics, 1978, 116: 790-806.\r\n4、Di Toro G, Aretusini S, Cornelio C, et al. Friction during earthquakes: 25 years of experimental studies [J]. IOP Conference Series: Earth and Environmental Science, 2021, 861(5): 052032.", "ds_quality": "The model predictions are compared with friction experimental data obtained for three types of materials—loess, field-collected materials, and sand—thereby validating the accuracy of the proposed model. The theoretical friction model for sliding interfaces under hydro–mechanical–thermal coupling provides improved predictive capability for interfacial friction of materials with different degrees of saturation (water content). This improvement arises because the enhanced model explicitly accounts for the effects of water content on both the macroscopic interfacial structure and the microscopic local stress state, factors that are not considered in previous models and are therefore more representative of real contact and friction behavior at water-bearing interfaces. Consequently, this dataset provides reliable data support for investigating the friction mechanisms of sliding interfaces in geological hazards such as landslides.", "ds_ref_way": "", "ds_abstract": "
To reveal the hydro–thermal–mechanical multiscale contact friction mechanisms of sliding interfaces in geological hazards such as landslides, this study first focuses on the porous structure and strongly random contact characteristics of sliding interfaces. Based on the Gumbel probability distribution, the interfacial structural evolution from the creep accumulation of individual contact asperities to the overall initiation of sliding is described, and the evolution of interfacial structure during frictional processes is characterized by incorporating volume contact theory. Meanwhile, for water-bearing interfaces, the influence of water content on interfacial deformation is considered, further improving the representation of interfacial structural evolution during friction. Subsequently, a creep constitutive relationship is introduced to describe the stress evolution on individual contact asperities, leading to further refinement of the existing rate-and-state friction model. On this basis, by coupling the interfacial structural evolution process with the local stress state of individual contact asperities, a theoretical friction model for sliding interfaces under hydro-mechanical-thermal coupling is established. The proposed model reveals the mechanisms by which the evolution of macroscopic interfacial structure and microscopic local stress governs the contact friction behavior of sliding interfaces. The dataset reflects the influence of macroscopic interfacial structural evolution and microscopic local stress variations on sliding interface friction behavior, and provides data support and theoretical references for the investigation of sliding interface friction mechanisms and multi-field coupled numerical simulations in landslides and other geological hazards.\r\n
The data are stored in Excel (*.xlsx) format and Origin project files (*.opju). Different worksheets within the data files correspond to experimental data and model prediction comparison results for different materials.", "ds_time_res": "", "ds_acq_place": "", "ds_space_res": "", "ds_projection": "", "ds_process_way": "
(1) To account for the porous structure and strongly random contact characteristics of sliding interfaces, the interfacial structural evolution from the creep accumulation of individual contact asperities to the overall initiation of sliding is described based on the Gumbel probability distribution. By incorporating volume contact theory, the evolution of interfacial structure during the friction process is quantitatively characterized. Meanwhile, for water-bearing interfaces, the influence of water content on interfacial deformation is considered, further improving the representation of interfacial structural evolution during friction. Subsequently, a creep constitutive relationship is introduced to describe the stress evolution on individual contact asperities, leading to further refinement of the existing rate-and-state friction model. On this basis, by coupling the interfacial structural evolution process with the local stress state of individual contact asperities, a theoretical friction model for sliding interfaces under hydro–mechanical–thermal coupling is established.\r\n
(2) The dataset is generated based on calculations performed using the theoretical friction model for sliding interfaces under hydro-mechanical-thermal coupling.", "ds_ref_instruction": "" } }, "submit_center_id": "ncdc", "data_level": 0, "recommendation_value": 0, "license_type": "https://creativecommons.org/licenses/by/4.0/", "doi_reg_from": "reg_local", "cstr_reg_from": "reg_local", "doi_not_reg_reason": null, "cstr_not_reg_reason": null, "is_paper_in_submitting": false, "belong_to_nieer": false, "ds_topic_tags": [ "滑移界面", "接触摩擦", "界面结构", "局部应力", "界面含水" ], "ds_subject_tags": [ "地质学", "工程地质学" ], "ds_class_tags": [], "ds_locus_tags": [], "ds_time_tags": [], "ds_contributors": [ { "true_name": "他吴睿", "email": "tawr@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_meta_authors": [ { "true_name": "他吴睿", "email": "tawr@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "ds_managers": [ { "true_name": "他吴睿", "email": "tawr@lzu.edu.cn", "work_for": "兰州大学", "country": "中国" } ], "category": "灾害" }