Journal of Rock Mechanics and Geotechnical Engineering最新文献

{"title":"MICP-treated soft mudstone in open-pit coal mines combined with fly ash and CaO","authors":"Guanghe Li, Jiankang Feng, Dong Wang, Jingjing Zou, Yanrong Dong, Laigui Wang, Kun Fang, Chunbin Guo","doi":"10.1016/j.jrmge.2025.12.008","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.12.008","url":null,"abstract":"Mudstone found in open-pit coal mines is prone to softening, expansion, and disintegration when exposed to water, leading to deterioration of its mechanical properties and causing slope instability. To address this issue, this study introduced a novel slope stabilization method that integrates coal-based solid waste (fly ash) with microbially induced carbonate precipitation. The effects of fly ash (FA) and CaO (FC) and Bacillus subtilis (BS) contents on the cohesion ( c ), internal friction angle ( φ ), unconfined compressive strength ( q u ), elastic modulus ( E ), Poisson's ratio ( μ ), disintegration resistance, and microstructural characteristics of mudstone were evaluated through unconfined compressive strength tests, direct shear tests, disintegration test, X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy. The results showed that under optimal curing conditions, the growth rates of c , φ , q u , E , and μ of the treated mudstone sample improved by +251.46%, +53.86%, +134.1%, +66.3%, and −65.61%, respectively, compared with those of plain mudstone samples. Moreover, its resistance to disintegration upon contact with water could be extended from 72 h to 10 d. The curing mechanism primarily involved the activation of FA into calcium silicate hydrate (C-S-H), calcium aluminate hydrate (C-A-H), Calcium Aluminum Silicate Hydrate (C-A-S-H), and microbially induced calcite (CaCO 3 ) precipitates. Under the action of an appropriate amount of curing agent, FC can provide an alkaline environment and nucleation sites for BS, making the calcium carbonate distribution more uniform. BS accelerates the catalysis of FC to form gelation products. Meanwhile, due to the continuous consumption of Ca 2+ and OH − , the equilibrium of the CaO dissolution shifts toward generating more Ca(OH) 2 , achieving a “three-way promotion” effect. On the contrary, these factors will inhibit each other due to the different rates of reaction output. The findings offer a viable solution for slope stability in open-pit coal mines and hold significance for safe mining, environmental protection, and sustainable use of coal-based solid waste.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147896431","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}

{"title":"Multi-scale interfacial mechanisms of Pb immobilization in contaminated soil using phosphoric acid-activated coal gangue-electrolytic manganese residue geopolymers","authors":"Wei Zhang, Lei Lang, Zhen Qi, Ping Wang, Qiang Xue, Fangqin Cheng, Jiangshan Li","doi":"10.1016/j.jrmge.2025.05.034","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.05.034","url":null,"abstract":"The accumulation of contaminated soils and solid waste stockpiles has led to significant resource wastage and environmental pollution. This study investigates a novel solidification/stabilization (S/S) curing agent, named ECPG, synthesized from electrolytic manganese residue (EMR), coal gangue (CG), and phosphoric acid, for the treatment of Pb-contaminated soils. The influences of ECPG dosages, CG to EMR ratios, Pb 2+ and phosphoric acid concentrations, curing age, and durability on the strength development and leaching characteristics of the solidified soils were systematically investigated. Durability tests under different freeze-thaw and wet-dry cycles were also conducted to assess long-term performance. The mechanisms of geopolymerization, S/S, and strength enhancement were elucidated through tests and molecular simulations. The results demonstrated that the optimal CG to EMR ratio was 8:2 with 7 mol/L phosphoric acid, resulting in a peak strength of 5.9 MPa and immobilization rates of 99.7%, 99.3%, and 81.5% for Pb, Mn, and after curing for 28 d. Freeze-thaw and wet-dry cycles demonstrated excellent durability, with unconfined compressive strength (UCS) above 85% and Pb leaching value of 0.42 mg/L. Molecular simulations revealed that Pb and Mn were primarily immobilized by adsorption, with ion exchange serving as a secondary mechanism, and a minor fraction resulted in the formation of phosphate precipitates. Conversely, was predominantly immobilized via ion exchange, with a portion forming MgNH 4 PO 4 ·6H 2 O and MnNH 4 PO 4 ·H 2 O. This study can not only contribute to the advancement of safe disposal and resource reuse of contaminated soil and solid waste, but also offers a theoretical foundation for S/S technology from a multi-scale perspective.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332724","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}

{"title":"Deep learning-augmented crack mapping and SPH-based dynamic simulation for landslide kinematic prediction","authors":"Zilin Xiang, Jie Dou, Huiming Tang, Aonan Dong, Bo Peng, Ke Xing, Lele Zhang, Hamza Daud, Zewei Lu, Lorenzo Brezzi","doi":"10.1016/j.jrmge.2025.09.005","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.09.005","url":null,"abstract":"On July 19, 2020, the Tanjiawan landslide in Badong County, China, underwent pronounced deformation triggered by extreme rainfall, posing substantial risks to local communities and infrastructure. To elucidate its spatiotemporal evolution and failure mechanisms, a comprehensive field campaign was conducted, supported by multi-source datasets including geological, topographic, lithological, precipitation, satellite remote sensing, and unmanned aerial vehicle (UAV)-based photogrammetry. Deep learning models (U-Net and ResU-Net) were employed to automatically extract ground cracks from high-resolution UAV-based orthophotos. ResU-Net achieved superior recognition accuracy (89.7%) compared to U-Net (85.9%), with cracks predominantly distributed along the rear scarp and lateral margins, consistent with field observations. Landslide stability was evaluated using the limit equilibrium method, coupled with Monte Carlo simulations to account for parameter uncertainty. Under extreme rainfall conditions (320 mm/d), the factor of safety decreased markedly from 1.079 to 0.822, while the failure probability increased by 72.82%. The post-failure dynamics were simulated using a smoothed particle hydrodynamics (SPH) model, which predicted a total run-out duration of 48 s, a peak velocity of 28 m/s at 19 s, and an average final deposit thickness of approximately 5 m. The integrated framework demonstrates the potential of deep learning, probabilistic stability analysis, and particle-based modeling for quantitative landslide hazard assessment and early-warning applications in rainfall-sensitive mountainous regions.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147914461","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}

{"title":"Preparation of elution-resistant Ca-bentonite/polymer nanocomposite for effectively containing high-salinity leachate","authors":"Hefu Pu, Lusha Jiang, Ming Min, Zihe Guo, Yuchao Li, Hui Wang","doi":"10.1016/j.jrmge.2025.05.011","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.05.011","url":null,"abstract":"Geosynthetic clay liners (GCLs) consisting of dry-mixed bentonite-polymer composites (BPCs) were developed for the containment of landfill leachate. However, the weak interface bonding between the bentonite and polymer can lead to serious polymer elution, deteriorating the containment efficacy of BPCs. Herein, a salt-resistant polymer, P(acrylic acid-2-acryl amido-2-methyl propane sulfonic acid-vinyltriethoxysilane) (denoted as P-AAV) is proposed to covalently graft onto Calcium-bentonite (CaB) by in situ polymerization and interface crosslinking. As a silane coupling agent, the vinyltriethoxysilane (VTES) repeating units form an interface crosslinking structure with the silanol groups at the CaB surface, resulting in the formation of interface-crosslinked CaB/P-AAV nanocomposite. The interface crosslinking structure enhances the CaB/polymer interface bonding, thereby improving the CaB/P-AAV nanocomposite’s resistance to polymer elution. After permeation tests with trona ash leachate (ionic strength I as high as 746 mmol/L), the polymer elution of CaB/P-AAV is only 22% that of the dry-mixed control sample and substantially lower than that reported in the literature, and the bound water content of CaB/P-AAV is 3.9 times higher than that of natural CaB and thus its effective porosity is 37.5% lower. Consequently, the hydraulic conductivity of CaB/P-AAV to trona ash leachate is as low as 2.8✕10 -12 m/s, which is only 5.6% of the required hydraulic conductivity for GCLs (5✕10 -11 m/s).","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147332354","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}

{"title":"Preparation and properties of cross-linked polymer/bentonite nanocomposite for containment of chemically aggressive liquids","authors":"Lusha Jiang, Hui Wang, Miao Yu, Qiang Zhao, Ming Min, Jinwei Qiu, Hefu Pu","doi":"10.1016/j.jrmge.2025.04.008","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.04.008","url":null,"abstract":"Polymer-modified bentonite (PMB) is much more effective at containing chemically aggressive liquids than conventional bentonite. The PMB manufacturing process typically utilizes natural, high-quality sodium bentonite (NaB) owing to its excellent hydrophilicity and swelling capacity. However, calcium bentonite (CaB), which is much more abundant worldwide, is rarely used for containment applications owing to its poor hydrophilicity. This study proposed a polymerization method that transforms sodium-activated calcium bentonite (NCB) into PMB to achieve low hydraulic conductivity ( k ) to aggressive liquids. The mechanism for its low k was revealed through characterization techniques and analyses (e.g. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET)). The results showed that the PMB had a small amount of polymer elution (indicating better interface stability) and thus exhibited excellent barrier properties under chemically aggressive conditions, with the k of < 10 -11 m/s for 0.6 mol/L NaCl solution, which is four orders of magnitude lower than that of the NCB ( k = 3×10 -7 m/s). Various microscopic analyses indicated that the selected monomers were successfully polymerized, and intercalated into and grafted onto the montmorillonite layers of bentonite. The formed polymer network increased the swelling capability of PMB granules, decreased the pore size, and created narrow and tortuous flow pathways leading to a very low k to aggressive liquids.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"18 1","pages":"662-672"},"PeriodicalIF":0.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147333545","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}

{"title":"Properties of thermal insulation materials for deep oil and gas in situ temperature-preserved coring: A focus on interphase","authors":"Zijie Wei, Zhiqiang He, Ling Chen, Bo Yu, Jianping Yang, Heping Xie","doi":"10.1016/j.jrmge.2025.01.026","DOIUrl":"https://doi.org/10.1016/j.jrmge.2025.01.026","url":null,"abstract":"The high-temperature conditions of deep oil and gas reservoirs notably affect the porosity and permeability of rocks. In situ temperature-preserved coring (ITP-Coring) technology is crucial for accurately assessing rock properties in deep reservoirs. High-performance thermal insulation materials are crucial for supporting ITP-Coring during deep oil and gas exploration. This study explores the impact of high-temperature and high-pressure (HTHP) conditions on hollow glass microsphere/epoxy (HGM/EP) thermal insulation materials, focusing on the interphase. Investigations of HGM/EP materials with varying hollow glass microsphere (HGM) strengths and volume fractions reveal that elevated temperatures cause the molecular chains of the epoxy resin matrix to relax, leading to matrix softening and a decline in mechanical properties. Additionally, high-pressure water infiltrates the material, damaging the interphase and HGMs, further compromising material performance. The combined HTHP environment accelerates this degradation. Dynamic mechanical analysis (DMA) shows that S60HS HGMs, which possess higher strength, interact more strongly with the matrix and exhibit higher entanglement density, resulting in superior interphase adhesion. This enhances stress transfer efficiency and reduces the loss of storage modulus at the interphase. Theoretical analysis indicates that the interphase thickness and modulus of S-f40 remain mostly unaffected after HTHP treatment, with values higher than the epoxy matrix. This correlates with DMA results, demonstrating that S-f40 has the smallest adhesion factor ( A ), indicating the highest interfacial stress transfer efficiency. S-f40 also exhibits optimal thermal conductivity and mechanical properties, making it ideal for ITP-Coring in deep reservoirs. These findings provide insights for optimizing materials in HTHP environments for deep reservoir exploration.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"17 12","pages":"7691-7710"},"PeriodicalIF":0.0,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147922092","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}

{"title":"In situ temperature-preserved coring for deep oil and gas reservoir: Thermal insulation materials","authors":"Zhiqiang He, Heping Xie, Mingzhong Gao, Ling Chen, Jianping Yang, Bo Yu, Zijie Wei","doi":"10.1016/j.jrmge.2024.10.008","DOIUrl":"https://doi.org/10.1016/j.jrmge.2024.10.008","url":null,"abstract":"Deep oil and gas reservoirs exist under high-temperature conditions. In situ temperature-preserved coring (ITP-Coring) is an innovative and crucial method for evaluating and exploiting deep oil and gas resources. Thermal insulation materials are key to achieving successful ITP-Coring. Materials composed of hollow glass microspheres (HGMs) as fillers and epoxy resin (EP) as the matrix are promising thermal insulation materials for application in ITP-Coring to exploit deep resources. The compressive mechanical properties of these materials significantly influence their applicability and reliability. However, few studies have focused on the compressive mechanical behavior of the materials under high-temperature and high-pressure (HTHP) coupled conditions. Therefore, compressive mechanical tests on materials under temperatures and pressures of up to 150 °C and 140 MPa were conducted innovatively. The compressive stress-strain curves of the materials were divided into three stages: elastic, yield, and failure, at temperatures ranging from 25 °C to 100 °C. Increasing temperature and pressure resulted in a decrease in compressive mechanical properties. Notably, high pressure damaged the HGMs, increasing compressive strain as the temperature rose. Additionally, the compressive failure mode shifted from compound failure to shear failure at different thresholds of HTHP conditions. Finally, a constitutive model of compressive mechanics that considered multiple coupled factors was established, demonstrating good agreement with the experimental results. These findings provide both experimental and theoretical support for the optimization and engineering application of HGMs/EP materials.","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"17 9","pages":"5601-5614"},"PeriodicalIF":0.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147897407","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}

{"title":"Numerical investigation of geostress influence on the grouting reinforcement effectiveness of tunnel surrounding rock mass in fault fracture zones","authors":"Xiangyu Xu ,&nbsp;Zhijun Wu ,&nbsp;Lei Weng ,&nbsp;Zhaofei Chu ,&nbsp;Quansheng Liu ,&nbsp;Yuan Zhou","doi":"10.1016/j.jrmge.2023.04.011","DOIUrl":"10.1016/j.jrmge.2023.04.011","url":null,"abstract":"<div><p>Grouting is a widely used approach to reinforce broken surrounding rock mass during the construction of underground tunnels in fault fracture zones, and its reinforcement effectiveness is highly affected by geostress. In this study, a numerical manifold method (NMM) based simulator has been developed to examine the impact of geostress conditions on grouting reinforcement during tunnel excavation. To develop this simulator, a detection technique for identifying slurry migration channels and an improved fluid-solid coupling (F–S) framework, which considers the influence of fracture properties and geostress states, is developed and incorporated into a zero-thickness cohesive element (ZE) based NMM (Co-NMM) for simulating tunnel excavation. Additionally, to simulate coagulation of injected slurry, a bonding repair algorithm is further proposed based on the ZE model. To verify the accuracy of the proposed simulator, a series of simulations about slurry migration in single fractures and fracture networks are numerically reproduced, and the results align well with analytical and laboratory test results. Furthermore, these numerical results show that neglecting the influence of geostress condition can lead to a serious overestimation of slurry migration range and reinforcement effectiveness. After validations, a series of simulations about tunnel grouting reinforcement and tunnel excavation in fault fracture zones with varying fracture densities under different geostress conditions are conducted. Based on these simulations, the influence of geostress conditions and the optimization of grouting schemes are discussed.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"16 1","pages":"Pages 81-101"},"PeriodicalIF":7.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523001452/pdfft?md5=58645d7e6fbb2cac3f0fb1a4e36b5537&pid=1-s2.0-S1674775523001452-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45642176","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}

{"title":"Fiber optic monitoring of an anti-slide pile in a retrogressive landslide","authors":"Lei Zhang ,&nbsp;Honghu Zhu ,&nbsp;Heming Han ,&nbsp;Bin Shi","doi":"10.1016/j.jrmge.2023.02.011","DOIUrl":"10.1016/j.jrmge.2023.02.011","url":null,"abstract":"<div><p>Anti-slide piles are one of the most important reinforcement structures against landslides, and evaluating the working conditions is of great significance for landslide mitigation. The widely adopted analytical methods of pile internal forces include cantilever beam method and elastic foundation beam method. However, due to many assumptions involved in calculation, the analytical models cannot be fully applicable to complex site situations, e.g. landslides with multi-sliding surfaces and pile-soil interface separation as discussed herein. In view of this, the combination of distributed fiber optic sensing (DFOS) and strain-internal force conversion methods was proposed to evaluate the working conditions of an anti-sliding pile in a typical retrogressive landslide in the Three Gorges reservoir area, China. Brillouin optical time domain reflectometry (BOTDR) was utilized to monitor the strain distribution along the pile. Next, by analyzing the relative deformation between the pile and its adjacent inclinometer, the pile-soil interface separation was profiled. Finally, the internal forces of the anti-slide pile were derived based on the strain-internal force conversion method. According to the ratio of calculated internal forces to the design values, the working conditions of the anti-slide pile could be evaluated. The results demonstrated that the proposed method could reveal the deformation pattern of the anti-slide pile system, and can quantitatively evaluate its working conditions.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"16 1","pages":"Pages 333-343"},"PeriodicalIF":7.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523000719/pdfft?md5=61258e13a378294001e82faa33af2cc6&pid=1-s2.0-S1674775523000719-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49432503","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}

{"title":"Analytical evaluation of steady-state solute distribution in through-diffusion and membrane behavior test under non-perfectly flushing boundary conditions","authors":"Guannian Chen ,&nbsp;Yuchao Li ,&nbsp;Kristin M. Sample-Lord ,&nbsp;Shan Tong","doi":"10.1016/j.jrmge.2023.04.010","DOIUrl":"10.1016/j.jrmge.2023.04.010","url":null,"abstract":"<div><p>The through-diffusion and membrane behavior testing procedure using a closed-system apparatus has been widely used for concurrent measurement of diffusion and membrane efficiency coefficients of low-permeability clay-based barrier materials. However, the common assumption of perfectly flushing conditions at the specimen boundaries could induce errors in analyses of the diffusion coefficients and membrane efficiencies. In this study, an innovative pseudo three-dimensional (3D) analytical method was proposed to evaluate solute distribution along the boundary surfaces of the soil-porous disks system, considering the non-perfectly flushing conditions. The results were consistent with numerical models under two scenarios considering different inflow/outflow positions. The proposed model has been demonstrated to be an accurate and reliable method to estimate solute distributions along the boundaries. The calculated membrane efficiency coefficient and diffusion coefficient based on the proposed analytical method are more accurate, resulting in up to 50% less relative error than the traditional approach that adopts the arithmetic mean value of the influent and effluent concentrations. The retardation factor of the clay specimen also can be calculated with a revised cumulative mass approach. Finally, the simulated transient solute transport matched with experimental data from a multi-stage through-diffusion and membrane behavior test, validating the accuracy of the proposed method.</p></div>","PeriodicalId":54219,"journal":{"name":"Journal of Rock Mechanics and Geotechnical Engineering","volume":"16 1","pages":"Pages 258-267"},"PeriodicalIF":7.3,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674775523001440/pdfft?md5=3ee078faf2656f59b6334706f2b4d7a6&pid=1-s2.0-S1674775523001440-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42927657","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}