Acta Geotechnica最新文献

A hypoplastic model for hydrate dissociation considering grain breakage 考虑颗粒破碎的水合物解离发育不良模型

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-09-11 DOI: 10.1007/s11440-025-02747-z

Haoyong Qian, Wei Wu, Chengshun Xu, Jialin Xu, Xiuli Du

引用次数: 0

A CFD-DEM investigation into the cyclic degradation behaviors in gap-graded sand under suffusion 渗流作用下间隙级配砂土循环退化行为的CFD-DEM研究

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-09-05 DOI: 10.1007/s11440-025-02746-0

Zibo Du, Zheng Zhang, Jingwei Zhang, Chuang Zhou, Yong Chen, Jiangu Qian

{"title":"A CFD-DEM investigation into the cyclic degradation behaviors in gap-graded sand under suffusion","authors":"Zibo Du, Zheng Zhang, Jingwei Zhang, Chuang Zhou, Yong Chen, Jiangu Qian","doi":"10.1007/s11440-025-02746-0","DOIUrl":"10.1007/s11440-025-02746-0","url":null,"abstract":"<div><p>The issue of suffusion caused by damage to underground pipelines is becoming increasingly severe. Simultaneously, the cyclic load near the damaged pipeline further exacerbates the degradation of the strength and resilient modulus of the surrounding soil. However, the cyclic degradation characteristics of soil subjected to suffusion under cyclic loading have not been well understood, especially at the micro-level. In this paper, the coupled computational fluid dynamics and discrete element method are used to conduct the suffusion test of gap-graded sand, and the cyclic degradation characteristics of the specimens before and after suffusion are investigated through cyclic triaxial test. The effects of hydraulic gradient, confining pressure and initial fine particle content on the cyclic degradation of eroded specimen are analyzed in detail. The macroscopic differences of cumulative strain and resilient modulus before and after suffusion caused by initial fine particle content are discussed. The mechanism of the cyclic degradation is revealed from a micro-perspective, including mechanical coordination number, cumulative contact contribution and strong contact force chain. The results indicate that suffusion significantly alters the microstructure of gap-graded sand, reducing its resilient modulus and exacerbating cyclic degradation. The loss of fine particles destabilizes the coarse-grained skeleton, leading to increased axial strain and changes in mechanical coordination numbers and contact force distributions. Moreover, higher initial fine particle content induces more pronounced microstructural changes before and after suffusion.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5381 - 5406"},"PeriodicalIF":5.7,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Constitutive model for unsaturated crushable soils 非饱和可破碎土的本构模型

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-09-04 DOI: 10.1007/s11440-025-02754-0

Pongsapak Kanjanatanalert, Veerayut Komolvilas, Chortham Srinil, Mamoru Kikumoto

{"title":"Constitutive model for unsaturated crushable soils","authors":"Pongsapak Kanjanatanalert, Veerayut Komolvilas, Chortham Srinil, Mamoru Kikumoto","doi":"10.1007/s11440-025-02754-0","DOIUrl":"10.1007/s11440-025-02754-0","url":null,"abstract":"<div><p>Particle crushing, occurring in crushable materials under high-stress conditions exceeding their crushing strength, leads to particle breakdown and reduction in peak shear strength. The presence of water further diminishes crushing strength. Additionally, particle crushing significantly alters the soil–water characteristic curve (SWCC). The combined effects of particle crushing and the degree of saturation changes induce excessive deformation and weaken the soil. While existing models can predict the behavior of unsaturated soil and particle crushing effects individually, a comprehensive model for unsaturated crushable soils is necessary. This study proposes a constitutive model for unsaturated crushable soils, integrating the effect of the degree of saturation on crushing strength by developing the crushing surface. It incorporates variations in the grading state index and the degree of saturation, affecting soil strength via state boundary surface movement. Validation is achieved through past experimental evidence. The model effectively captures key features of unsaturated crushable soils, including the reduction in crushing strength with increased degree of saturation, the evolution of SWCC due to particle crushing, and additional particle crushing during wetting. Furthermore, a parametric study offers insights into unsaturated crushable soil behavior, highlighting the combined effects of particle crushing and variations in the degree of saturation. When significant particle crushing occurs, increased volumetric compression due to particle crushing leads to a higher degree of saturation and further strength reduction, amplifying soil deformation. Understanding these interactions is crucial for predicting the behavior of unsaturated crushable soils, emphasizing the significance of this study.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5061 - 5077"},"PeriodicalIF":5.7,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel permeability model incorporating damage evolution under thermo-hydro-mechanical condition: development and verification 一种考虑热-水-力条件下损伤演化的新型渗透率模型：发展与验证

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-09-03 DOI: 10.1007/s11440-025-02699-4

Jiacun Liu, Zheng Wang, Ying Xu, Bangbiao Wu, Kaiwen Xia

{"title":"A novel permeability model incorporating damage evolution under thermo-hydro-mechanical condition: development and verification","authors":"Jiacun Liu, Zheng Wang, Ying Xu, Bangbiao Wu, Kaiwen Xia","doi":"10.1007/s11440-025-02699-4","DOIUrl":"10.1007/s11440-025-02699-4","url":null,"abstract":"<div><p>Under the coupling effect of effective stress and temperature, the permeability characteristics of rock under thermo-hydro-mechanical (THM) conditions are complicated. The complexity of permeability under THM conditions is mainly characterized by the non-monotonic variation with effective stress and temperature. The permeability variation under THM condition is mainly controlled by four different mechanisms, including compaction effect of mean effective stress, expansion effect of temperature, damage effect of effective shear stress, and damage effect of temperature. The former two mechanisms cause permeability to decrease, the latter two mechanisms cause permeability to increase. Therefore, based on the cubic model, a novel permeability model considering the four mechanisms described above is proposed in this study. The proposed permeability model is the function of effective stress and temperature. Besides, the permeability impact factor is defined based on the proposed model, which can directly reflect the contribution of effective stress and temperature to permeability. Four sets of permeability data under THM conditions were selected from existing literature to validate the proposed model. The fitted surface accurately describes the variation in the permeability data, which validates the accuracy and applicability of proposed model. Subsequently, the variation of permeability impact factor with effective stress and temperature is discussed.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5427 - 5441"},"PeriodicalIF":5.7,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Innovative LSTM-transformer hybrid models for predicting consolidation settlement 预测固结沉降的新型lstm -变压器混合模型

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-08-28 DOI: 10.1007/s11440-025-02752-2

Seongho Hong, Taek-Kyu Chung, Byeong-Soo Yoo, Sung-Ryul Kim

{"title":"Innovative LSTM-transformer hybrid models for predicting consolidation settlement","authors":"Seongho Hong, Taek-Kyu Chung, Byeong-Soo Yoo, Sung-Ryul Kim","doi":"10.1007/s11440-025-02752-2","DOIUrl":"10.1007/s11440-025-02752-2","url":null,"abstract":"<div><p>This study utilized advanced deep learning algorithms to predict consolidation settlement in deep soft clay deposits, with a specific focus on the construction design phase of port facilities. Two innovative hybrid models, namely, the sequence long short-term memory (LSTM)-transformer (SLT) and the parallel LSTM-transformer (PLT) models, were introduced to generate accurate time-settlement predictions by incorporating geotechnical and construction information from sites where preloading was applied. The models were developed and tested using a dataset from study sites in Busan Newport, South Korea. This dataset was constructed through 3D interpolation, which provided a detailed and accurate representation of subsurface conditions. A case study was conducted to evaluate the performance of the model in real-world scenarios. The accuracy of the proposed models was compared with that of traditional methods, including the Hansbo method and a basic transformer model. Results indicated that the proposed models outperformed these traditional methods by producing more accurate predictions. In addition, a parametric study highlighted the effectiveness of the model in capturing the effects of critical factors, such as step loading period, maximum fill height, and clay layer thickness. The SLT and PLT models demonstrated significant potential for enhancing settlement prediction accuracy during the design phase. This improvement in accuracy aids in planning and increases cost effectiveness in projects involving soft deposits.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5487 - 5513"},"PeriodicalIF":5.7,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11440-025-02752-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184109","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A thermo-hydro-mechanical-chemical coupled phase field framework for modeling fractures in porous rocks: the dual-fracture model 模拟多孔岩石裂缝的热-水-力-化学耦合相场框架：双裂缝模型

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-08-05 DOI: 10.1007/s11440-025-02713-9

Rui Liu, Shuwei Zhou, Shikang Qin, Shanpeng Cao, Xiaoying Zhuang, Timon Rabczuk

{"title":"A thermo-hydro-mechanical-chemical coupled phase field framework for modeling fractures in porous rocks: the dual-fracture model","authors":"Rui Liu, Shuwei Zhou, Shikang Qin, Shanpeng Cao, Xiaoying Zhuang, Timon Rabczuk","doi":"10.1007/s11440-025-02713-9","DOIUrl":"10.1007/s11440-025-02713-9","url":null,"abstract":"<div><p>A THMC coupled phase field framework for modeling fractures in porous rocks is proposed in this study. The framework introduces additionally the damage variable governed synergistically by the phase field and chemical field to account for dual-fracture mechanisms. Through this damage variable, full coupling of the temperature, hydraulic, mechanical, chemical, and phase fields is achieved. Implemented on the COMSOL Multiphysics platform, this multi-field coupling framework is solved by using a staggered iteration algorithm. The proposed framework was verified through fracture propagation induced by various factors. Furthermore, two-dimensional case studies are conducted to investigate the effects of acid concentration, heterogeneity, injection rate, specific surface area, and scale parameters on fracture morphology, fluid pressure distribution, temperature distribution, pressure evolution, and fracture propagation range. Numerical results demonstrate that the predictions of the proposed THMC coupled phase field model for fracture evolution and acid breakthrough consumption align with existing studies, while effectively characterizing the influence of sensitivity parameters.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5443 - 5467"},"PeriodicalIF":5.7,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Test and DEM study on cyclic shear behavior of sand–irregular concrete interface under dynamic normal loading 动法向荷载作用下砂-不规则混凝土界面循环剪切特性试验与DEM研究

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-08-04 DOI: 10.1007/s11440-025-02723-7

Shixun Zhang, Feiyu Liu, Weixiang Zeng, Mengjie Ying

{"title":"Test and DEM study on cyclic shear behavior of sand–irregular concrete interface under dynamic normal loading","authors":"Shixun Zhang, Feiyu Liu, Weixiang Zeng, Mengjie Ying","doi":"10.1007/s11440-025-02723-7","DOIUrl":"10.1007/s11440-025-02723-7","url":null,"abstract":"<div><p>To explore the dynamic response of sand–irregular concrete interface, a series of cyclic direct shear tests were conducted under dynamic normal loading, with different joint roughness coefficient (<span>(it {text{JRC}})</span>) and dynamic normal loading frequency. DEM models were developed to analyze its microscopic behavior. Research results indicate that there was a critical <span>(it {text{JRC}})</span> that maximized the interface shear strength. Maintaining a constant frequency of dynamic horizontal loading, changing the dynamic normal loading frequency resulted in changes in the shape of the shear stress–displacement hysteresis loops. The increase in dynamic normal loading frequency led to an increase in energy dissipation coefficient, which ranged from approximately 0.85 to 0.95. Energy introduced into the system by shearing was predominantly dissipated by internal mechanisms, mainly through slip and rolling slip. Dynamic horizontal loading would result in a decrease in the average force chain length and strength. As shearing, the anisotropy of the contact normal direction and tangential contact force of specimens significantly decreased. When the specimens were at shear stress reversal point, the anisotropic orientation of contact normal direction, normal contact force, and tangential contact force rotated toward the shear direction, and the rotation angle increased with the increase in <span>(it {text{JRC}})</span>.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 9","pages":"4775 - 4802"},"PeriodicalIF":5.7,"publicationDate":"2025-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144868754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mesoscale numerical investigation of fines detachment, migration, and erosion mechanisms in gas hydrate extraction 天然气水合物提取过程中细颗粒剥离、迁移和侵蚀机制的中尺度数值研究

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-07-29 DOI: 10.1007/s11440-025-02706-8

Pengwei Zhang, Wenzhe Gao, Yanlu Ding, Baoguo Liu

{"title":"Mesoscale numerical investigation of fines detachment, migration, and erosion mechanisms in gas hydrate extraction","authors":"Pengwei Zhang, Wenzhe Gao, Yanlu Ding, Baoguo Liu","doi":"10.1007/s11440-025-02706-8","DOIUrl":"10.1007/s11440-025-02706-8","url":null,"abstract":"<div><p>Fines detachment, migration, and settling leads to internal erosion of the skeleton structure and clogging of pores, which is an intricate process during the extraction of gas hydrate from marine sediments. Particularly, fines cemented around gas hydrate particles may detach during the dissociation process. The intricacy of this process has not been well characterized in current mathematical models or numerical modeling. In this paper, a mesoscale numerical model coupling solid particle and fluid seepage for gas hydrate-bearing sediments is developed and employed to simulate the fines erosion process, revealing three different mechanisms for the erosion of fines. Fines detach from the soil or gas hydrate particles during the hydrate phase transition and are subject to the Stokes drag force, frictional force, buoyancy force, capillary force, and interparticle interactions within pore space. Based on the established model, the pore clogging due to either physical aggregation or bridging can be clearly identified. The numerical model was initially calibrated with microfluidics experiments, followed by a series of sensitivity analyses to assess the impacts of porosity, fines content, gas hydrate saturation, and pressure gradient on gas and sand production. Results indicate that the interparticle forces play a significant role in pore clogging, which is crucial for gas hydrate-bearing silty sands. The sand production or physical pore clogging is a multi-stage process due to the dissociation of gas hydrates.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5469 - 5486"},"PeriodicalIF":5.7,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Increased frost heave deformation of synthetic water repellent soil 增加了合成防水土的冻胀变形

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-07-26 DOI: 10.1007/s11440-025-02655-2

Huie Chen, Xiang Gao, Hua Du, Qing Wang, Boxin Wang, Qingbo Yu, Miao Li

{"title":"Increased frost heave deformation of synthetic water repellent soil","authors":"Huie Chen, Xiang Gao, Hua Du, Qing Wang, Boxin Wang, Qingbo Yu, Miao Li","doi":"10.1007/s11440-025-02655-2","DOIUrl":"10.1007/s11440-025-02655-2","url":null,"abstract":"<div><p>Synthetic water repellent soil is often used to reduce water infiltration across different soil layers to mitigate frost heave hazards in cold regions. However, the freezing performance of water repellent soil itself remains unclear. Samples with different degrees of water repellency were prepared using octadecylamine. The contact angles, unfrozen water content, pore size distribution, and freezing deformation of the samples were measured. There is a positive correlation between the degree of water repellency and unfrozen water content, the growth rate of macropores, the duration of the rapid frost heave stage and the amount of stable frost heave. Increased water repellency caused an increase in the critical nucleation work for the water–ice phase transition and shifted the dominant heat transfer mode from solid–liquid conduction to air–liquid conduction. This led to an increased unfrozen water content and an extended duration of rapid frost heave. The increased water repellency also changed the ice crystal growth pattern on soil particle surfaces from attachment to detachment, leading to an increased proportion of large pores and frost heave deformation. These outcomes raise concerns about the durability of the protective effect of synthetic water repellent soil used in cold area geotechnical engineering practices.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"5185 - 5201"},"PeriodicalIF":5.7,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11440-025-02655-2.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correlation of excavated soil multi-source heterogeneous data using multimodal diffusion model 基于多模态扩散模型的开挖土多源非均质数据相关性研究

IF 5.7 1区工程技术

Acta Geotechnica Pub Date : 2025-07-21 DOI: 10.1007/s11440-025-02690-z

Qi-Meng Guo, Liang-Tong Zhan, Zhen-Yu Yin, Hang Feng, Guang-Qian Yang, Yun-Min Chen, Yu-An Chen

{"title":"Correlation of excavated soil multi-source heterogeneous data using multimodal diffusion model","authors":"Qi-Meng Guo, Liang-Tong Zhan, Zhen-Yu Yin, Hang Feng, Guang-Qian Yang, Yun-Min Chen, Yu-An Chen","doi":"10.1007/s11440-025-02690-z","DOIUrl":"10.1007/s11440-025-02690-z","url":null,"abstract":"<div><p>The sustainable utilization of excavated soil as a geomaterial requires a comprehensive understanding of its multi-dimensional properties, but correlating heterogeneous data (e.g., visual, mechanical, and electrical characteristics) remains a challenge. To address this, an excavated soil information collecting system was developed to acquire multi-source data including RGB images, cone index (CI) curves, and TDR waveforms—from China’s largest soil transfer platform, establishing a database of 23,122 sets. A generative-model-aided correlation analysis framework was proposed, leveraging a denoising diffusion probabilistic model to explore inherent relationships between soil properties. Performance metrics, such as SSIM, LPIPS, and RMSE, were employed to analyze the model's training results. Key findings reveal that: (1) soil images encode water content information, which correlates with CI curves and TDR waveforms; (2) CI and TDR data cannot capture color-based mineral composition details from images; and (3) TDR waveforms uniquely detect pollution indicators (e.g., electrical conductivity), undetectable via other methods. This AI-driven approach provides a novel methodology for analyzing multi-dimensional property correlations in geotechnics, enhancing sustainable soil reuse.</p></div>","PeriodicalId":49308,"journal":{"name":"Acta Geotechnica","volume":"20 10","pages":"4977 - 5005"},"PeriodicalIF":5.7,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11440-025-02690-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184194","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0