Geotextiles and Geomembranes最新文献

The role of boundary normal stiffness in the micromechanical behavior of geomembrane-sand interface: A numerical study 边界法向刚度在土工膜-砂界面细观力学行为中的作用：数值研究

IF 6.2 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-31 DOI: 10.1016/j.geotexmem.2025.07.011

Haibo Wang , Ge Gao , Mohamed A. Meguid , Nasser Khalili , Lulu Zhang

{"title":"The role of boundary normal stiffness in the micromechanical behavior of geomembrane-sand interface: A numerical study","authors":"Haibo Wang , Ge Gao , Mohamed A. Meguid , Nasser Khalili , Lulu Zhang","doi":"10.1016/j.geotexmem.2025.07.011","DOIUrl":"10.1016/j.geotexmem.2025.07.011","url":null,"abstract":"<div><div>Three-dimensional discrete element method (DEM) is employed to investigate how boundary normal stiffness influences the shearing behavior at the soil-geomembrane interface. A robust and efficient algorithm was developed and implemented into direct shear numerical models, effectively capturing the key aspects of the sand-geomembrane interface behavior across a wide range of boundary normal stiffness values. The numerical model was validated by comparing the bulk responses of interface shear stress and volume change versus shear displacement with experimental data. At the microscale, particle displacements, rotations, contact network evolution, coordination number, redundancy factor and elastic stiffness tensor were investigated to shed light on the impact of normal stiffness on the interface response. The micromechanical insights, such as the development of higher level of geometrical and mechanical anisotropy, stronger interface interlocking to resist sliding and rolling of sand particles, and increased local density and bulk stiffness, are connected to the macroscopic response, explaining how higher boundary normal stiffness enhances interface shear strength and normal stress during shearing.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1506-1524"},"PeriodicalIF":6.2,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749443","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

Degradation of polyethylene geomembranes exposed to different mine tailings pore waters 聚乙烯土工膜在不同尾矿孔隙水中的降解研究

IF 6.2 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-30 DOI: 10.1016/j.geotexmem.2025.07.006

Rodrigo A. e Silva, R. Kerry Rowe, Fady B. Abdelaal

{"title":"Degradation of polyethylene geomembranes exposed to different mine tailings pore waters","authors":"Rodrigo A. e Silva, R. Kerry Rowe, Fady B. Abdelaal","doi":"10.1016/j.geotexmem.2025.07.006","DOIUrl":"10.1016/j.geotexmem.2025.07.006","url":null,"abstract":"<div><div>The chemical durability of three 1.5 mm geomembranes (GMBs) – two made from high-density polyethylene (HDPE) and one from a blended polyolefin resin – was examined over 3 years in synthetic tailings pore water solutions. The immersion solutions included a pH 4.0 solution simulating pore water from oxidized copper-zinc mine tailings (PW-4), pH 7.0 (PW-7) and 8.0 (PW-8) solutions simulating arsenic-bearing pore waters from saturated gold mine tailings, and a pH 9.5 solution (PW-9.5) simulating pore water affected by cyanide complexes and/or chemicals from a cyanidation plant. Both HDPE GMBs reached nominal failure in stress-crack resistance at 85 °C, followed by reductions in melt index and, in some cases, tensile strength. The blended GMB showed no degradation. PW-7 was the most aggressive solution in terms of degradation of mechanical properties of the HDPEs, while PW-9.5 was the most aggressive for antioxidant depletion for all three GMBs. The relative performance of the three GMBs in different tailings pore waters could not be predicted from the GMBs’ initial properties or the solutions' chemistry. Overall, results highlight the importance of conducting immersion tests for applications involving complex chemical environments.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1483-1505"},"PeriodicalIF":6.2,"publicationDate":"2025-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144749573","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

Centrifuge modeling on the geosynthetic-reinforced soil (GRS) abutments with different combinations of reinforcement spacing and tensile stiffness 土工合成加筋土（GRS）桥台不同配筋间距和抗拉刚度组合的离心模拟

IF 6.2 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-29 DOI: 10.1016/j.geotexmem.2025.07.009

Qingming Wang , Chao Xu , Geye Li , Panpan Shen , Chongxi Zhao

{"title":"Centrifuge modeling on the geosynthetic-reinforced soil (GRS) abutments with different combinations of reinforcement spacing and tensile stiffness","authors":"Qingming Wang , Chao Xu , Geye Li , Panpan Shen , Chongxi Zhao","doi":"10.1016/j.geotexmem.2025.07.009","DOIUrl":"10.1016/j.geotexmem.2025.07.009","url":null,"abstract":"<div><div>Three centrifuge model tests were conducted to investigate the performance of geosynthetic reinforced soil (GRS) abutments with modular block facing under localized vertical loads. This study examined the effects of different combinations of reinforcement spacing <em>S</em><sub><em>v</em></sub> and tensile stiffness <em>J</em> on the behavior of GRS abutments. In this study, river sand and woven geotextiles were used as the backfill soil and reinforcement material, respectively. Test results show that under the same ratio of <em>J</em>/<em>S</em><sub><em>v</em></sub> = 3.7, using the combination of smaller <em>S</em><sub><em>v</em></sub> and lower <em>J</em> was more effective in minimizing the beam seat settlements and the lateral facing displacements induced by localized vertical loads than the combination of larger <em>S</em><sub><em>v</em></sub> and higher <em>J</em>. Meanwhile, smaller additional vertical stresses transferred from the applied loads within the GRS abutment and smaller reinforcement tensile forces were also observed for the combination of smaller <em>S</em><sub><em>v</em></sub> and lower <em>J</em>. Furthermore, the maximum tensile forces in each layer occurred under the beam seat for the upper reinforcement layers and near the facing for the lower layers for all three tests. A more uniform distribution of the reinforcement tensile force was found for the combination of smaller <em>S</em><sub><em>v</em></sub> and lower <em>J</em>.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1473-1482"},"PeriodicalIF":6.2,"publicationDate":"2025-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144721056","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

Mitigating frost damage in cold region canals: performance evaluation of a two-layer geomembrane lining structure 缓解寒区水渠冻害：双层土工膜衬砌结构的性能评价

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-17 DOI: 10.1016/j.geotexmem.2025.07.008

Jianrui Ge , Yuncheng Yuan , Haoyuan Jiang , Zhengzhong Wang , Yi Wang , Min Xiao

{"title":"Mitigating frost damage in cold region canals: performance evaluation of a two-layer geomembrane lining structure","authors":"Jianrui Ge , Yuncheng Yuan , Haoyuan Jiang , Zhengzhong Wang , Yi Wang , Min Xiao","doi":"10.1016/j.geotexmem.2025.07.008","DOIUrl":"10.1016/j.geotexmem.2025.07.008","url":null,"abstract":"<div><div>To address frost damage to canal lining structures in arid and cold regions, this study proposes the use of a two-layer composite geomembranes (TLCGs) as a frost-heaving composite lining structure. To assess the performance of the two-layer geomembrane lining structure (TLCGLS), field tests were conducted. Considering the interaction between TLCGs and lining structure and canal foundation soil, a calculation model of canal frost heave is established based on the water-heat-force coupling theory of foundation soil. The stress of canal lining with single-layer composite geomembrane (SLCG), frictionless two-layer composite geomembranes (FTLCGS), and TLCGs under frost-heaving conditions is analyzed. The results indicate that TLCGLS can enhance the temperature of canal foundation soil by 7 % and decrease the water content by 12 %, thereby effectively mitigating canal deformation by 38 %. The TLCGs cushion under the canal lining can effectively release the tangential freezing constraint, so that the lining structure has certain flexibility, so as to prevent frost damage. Therefore, the reasonable use of TLCGs with appropriate friction and the setting of flexible structural joints can prevent frost damage.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1458-1472"},"PeriodicalIF":4.7,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653662","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

Centrifuge modelling of EPS geofoam behind integral bridge abutments 整体式桥台后EPS土工泡沫的离心建模

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-17 DOI: 10.1016/j.geotexmem.2025.07.005

Douglas G. Morley , Gopal SP. Madabhushi , Dennis Sakufiwa

{"title":"Centrifuge modelling of EPS geofoam behind integral bridge abutments","authors":"Douglas G. Morley , Gopal SP. Madabhushi , Dennis Sakufiwa","doi":"10.1016/j.geotexmem.2025.07.005","DOIUrl":"10.1016/j.geotexmem.2025.07.005","url":null,"abstract":"<div><div>This research investigates the extent to which geosynthetic compressible inclusions can be used to improve the performance of integral bridges. Geotechnical centrifuge modelling was used to simulate thermal movements acting on a 9 m abutment on a spread foundation, with and without a 1.2 m thick EPS geofoam inclusion. The compressible inclusion was found to significantly reduce the earth pressures behind the abutment generated over a 120-year design life of thermal cycles without undergoing notable permanent deformation. This resulted in the bridge deck axial force and peak abutment bending moment reaching only a third and two-thirds, respectively, of the values without the geofoam. Backfill settlement increased slightly when the compressible inclusion was used, although the peak settlement immediately behind the abutment face remained similar at around 100 mm. Through the application of extreme displacement amplitudes, it was found that the performance of EPS geofoam was not overly sensitive to permanent deformation, which was concentrated behind the top half of the abutment. By providing partial isolation, rather than accommodating thermal movements in their entirety, these results suggest that EPS geofoam can improve integral bridge performance even when subjected to large thermal movements.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1446-1457"},"PeriodicalIF":4.7,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144653661","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

Mitigating washboard effect: A study on geocells as soil reinforcement for unpaved roads 减轻搓板效应：土工格室作为非铺砌道路土加固的研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-16 DOI: 10.1016/j.geotexmem.2025.07.007

Laura Ibagón , Bernardo Caicedo , Juan P. Villacreses , Fernando López‐Caballero

{"title":"Mitigating washboard effect: A study on geocells as soil reinforcement for unpaved roads","authors":"Laura Ibagón , Bernardo Caicedo , Juan P. Villacreses , Fernando López‐Caballero","doi":"10.1016/j.geotexmem.2025.07.007","DOIUrl":"10.1016/j.geotexmem.2025.07.007","url":null,"abstract":"<div><div>Washboard or corrugation is characterised by undulating patterns that emerge on unpaved roads as vehicles pass over. Soil properties, vehicle velocity, and mass influence these undulations. This study investigates the use of a cellular confinement system (geocells) placed at the road surface as a method to increase soil shear resistance. This approach aims to mitigate the formation of washboard undulations. A multi-pass experimental setup was employed to evaluate the reinforcement effect on the washboard phenomenon. The setup consists of a rotating wheel that traverses a sandy path, both with and without geocell reinforcement. Reinforced and non-reinforced results were compared under various scenarios, including wheel velocities and masses. Additionally, the effect of geocell confinement was compared with the effect of apparent cohesion using the theoretical model proposed by Ibagón et al. (2025). Findings showed that ripple formations are significantly reduced due to the geocell reinforcement. This suggests that geocells placed at the road surface may improve the durability and stability of unpaved roads under repeated vehicular loads.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1433-1445"},"PeriodicalIF":4.7,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634095","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

Experimental study on reinforcement and remediation of nickel-contaminated sludge using grouting vacuum preloading combined with electroosmosis 注浆真空预压结合电渗透加固修复镍污染污泥的试验研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-13 DOI: 10.1016/j.geotexmem.2025.07.003

Peng Wang , Ming Li , Zhuoxuan Wu , Jun Wang , Guohui Yuan , Xianfeng Huang , Jianfeng Wu

{"title":"Experimental study on reinforcement and remediation of nickel-contaminated sludge using grouting vacuum preloading combined with electroosmosis","authors":"Peng Wang , Ming Li , Zhuoxuan Wu , Jun Wang , Guohui Yuan , Xianfeng Huang , Jianfeng Wu","doi":"10.1016/j.geotexmem.2025.07.003","DOIUrl":"10.1016/j.geotexmem.2025.07.003","url":null,"abstract":"<div><div>Traditional vacuum preloading, electroosmotic techniques face challenges such as poor removal efficiency, reinforcement and high energy consumption when treating contaminated sludge with high water content. This study investigates the reinforcement and remediation of nickel (Ni)-contaminated sludge with high water content using an approach combining grouting, vacuum preloading, and electroosmosis (GVE). Through laboratory model tests, the effects of grouting agents, vacuum preloading, and voltage loading modes on Ni removal efficiency, soil reinforcement, and energy consumption were evaluated. The results demonstrate that the grouting of sodium alginate can chelate Ni<sup>2+</sup> in the soil, facilitating the removal of heavy metal ions during the electroosmosis process. The GVE combined with vacuum preloading significantly enhances Ni removal rates, achieving up to 94.52 % compared to 65.11 % with electroosmosis alone. Additionally, GVE reduced soil water content to 30.34 % and increased shear strength to 98 kPa, indicating improved soil reinforcement. The step loading further reduced energy consumption by over 35 % compared to constant voltage loading while enhancing both soil remediation and reinforcement. This study concludes that GVE, particularly with step loading and intermittent loading, is an effective and energy-efficient method for remediating and reinforcing heavy metal contaminated sludge.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1423-1432"},"PeriodicalIF":4.7,"publicationDate":"2025-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144611789","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

Investigation on dewatering and reinforcement of dredged clay treated with SAP and PVD under vacuum preloading 真空预压下SAP和PVD处理的挖泥脱水加固研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-12 DOI: 10.1016/j.geotexmem.2025.07.004

Yupeng Cao , Xinzhuang Cui , Zhehao Qiu , Jie Yin , Pengfei Qi , Shuo Sun

{"title":"Investigation on dewatering and reinforcement of dredged clay treated with SAP and PVD under vacuum preloading","authors":"Yupeng Cao , Xinzhuang Cui , Zhehao Qiu , Jie Yin , Pengfei Qi , Shuo Sun","doi":"10.1016/j.geotexmem.2025.07.004","DOIUrl":"10.1016/j.geotexmem.2025.07.004","url":null,"abstract":"<div><div>This study investigates the dewatering and reinforcement performance of high-water-content dredged slurry using vacuum preloading combined with superabsorbent polymer (SAP) as a flocculant. Preliminary sedimentation experiments were conducted to compare the dewatering performance of different flocculants, and SAP was identified as the most effective additive for enhancing sedimentation. Laboratory vacuum preloading model tests were conducted on dredged clay treated with SAP and prefabricated vertical drain (PVD), to evaluate the effectiveness of SAP in enhancing the dewatering process. Results show that SAP enhances vacuum efficiency, leading to higher and faster vacuum pressure stabilization near the PVD. SAP-treated samples exhibited more rapid pore water pressure dissipation and accelerated water content reduction, particularly in the early stages. Post-treatment water content increased with distance from the PVD, but SAP improved overall drainage uniformity. Vane shear strength decreased with distance from the PVD but remained higher in SAP-treated samples, showing a linear correlation with normalized water content. SAP also influenced soil column formation, expanding its effective radius and reducing stabilization time. Two quantitative models were developed to predict shear strength and soil column radius variations under vacuum preloading with and without SAP. The radius of the soil column formed during vacuum preloading varied with depth, decreasing towards the bottom and increasing towards the surface. These findings provide valuable insights for optimizing vacuum preloading in dredged material treatment and soft soil improvement.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1407-1422"},"PeriodicalIF":4.7,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604380","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

Experimental study on the wicking performance of a wicking geotextile in coarse-grained soils under freezing-thawing actions 冻融作用下吸湿土工布在粗粒土中的吸湿性能试验研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-10 DOI: 10.1016/j.geotexmem.2025.06.009

Zhilang You , Jian Xu , Hua Liu , Zhichao Zhang , Yang Peng

{"title":"Experimental study on the wicking performance of a wicking geotextile in coarse-grained soils under freezing-thawing actions","authors":"Zhilang You , Jian Xu , Hua Liu , Zhichao Zhang , Yang Peng","doi":"10.1016/j.geotexmem.2025.06.009","DOIUrl":"10.1016/j.geotexmem.2025.06.009","url":null,"abstract":"<div><div>The effectiveness of a self-developed wicking geotextile under different freezing-thawing cycles (0, 1, 3, 5, 10) in draining water from the coarse-grained railways soils with varying initial water contents (12 %, 15 %, 18 %, and 21 %) and fine contents (5 %, 10 %, 15 %, 20 %, 30 %) was evaluated using a series of vertical wicking tests. Results show that: 1) the wicking geotextile demonstrated efficient vertical water drainage from coarse-grained soils, with its performance significantly influenced by soil properties (initial water content and fine content) and freezing-thawing cycles; 2) the maximum liquid vertical wicking heights (LVWHs) of the wicking geotextiles in the coarse-grained soils increased with the increasing initial water contents but decreased with the increasing fine contents; 3) with the increase in freezing-thawing cycles, the maximum LVWHs of the wicking geotextiles in coarse-grained soils demonstrated a two-stage decline (first decreasing rapidly, then slowing down) before stabilizing at a constant value. Based on the microstructures, the mechanisms by which the initial water contents, fine contents, and freezing-thawing cycles affected the wicking performance were qualitatively analyzed and discussed. This study contributes to frost heave prevention of coarse-grained soils in cold regions.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1388-1406"},"PeriodicalIF":4.7,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588337","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

Experimental and numerical analysis of wrapped geogrid-stabilized high-fill embankment: Seismic response and composite reinforcement mechanisms 包裹土工格栅稳定高填方路堤的试验与数值分析：地震反应与复合加固机制

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-07-08 DOI: 10.1016/j.geotexmem.2025.06.008

Weiting Deng , Xuanming Ding , Chunyan Wang , Changwei Yang , Zhenhua Ren , Qiang Ou , Ren Wang

{"title":"Experimental and numerical analysis of wrapped geogrid-stabilized high-fill embankment: Seismic response and composite reinforcement mechanisms","authors":"Weiting Deng , Xuanming Ding , Chunyan Wang , Changwei Yang , Zhenhua Ren , Qiang Ou , Ren Wang","doi":"10.1016/j.geotexmem.2025.06.008","DOIUrl":"10.1016/j.geotexmem.2025.06.008","url":null,"abstract":"<div><div>This study investigated the seismic response and reinforcement mechanism of high-fill embankment reinforced with geogrid and pile-slab structure through shaking table tests and numerical method. Experimental results demonstrated that the geogrid-reinforced composite embankment can still maintain structural integrity under high-intensity seismic loading (PGA ≥0.8g), exhibiting only surface cracking and localized soil extrusion. The acceleration amplification factor (AAF) exhibited both “elevation effect” and “surface tendency effect”, while strain distribution in the pile-slab structure followed characteristic arch-shaped and M-shaped patterns. Geogrid reinforcement effectively constrained soil deformation and redistributed stresses, delaying the development of pile bending moment and embankment displacement. Its reinforcement efficiency increased with seismic intensity. Validated numerical models reproduced shear strain localization-induced cracking at both embankment surfaces and embankment-accumulation interfaces. Shear strain propagation exhibited a progressive inward expansion from the embankment surface under seismic excitation. Parametric studies further revealed that reducing geogrid spacing can improve constraint effects, minimize displacement, and mitigate internal shear deformation. These findings underscore the synergistic role of geogrids and pile-slab structures in redistributing seismic thrust forces, offering critical insights for optimizing reinforcement strategies in seismically active regions.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1357-1374"},"PeriodicalIF":4.7,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144571598","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