Geotextiles and Geomembranes最新文献_第9页

Connection failure between reinforcement and facing in geosynthetic reinforced soil bridge abutments: A case study 土工合成加筋土桥台配筋与桥面连接失效案例研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-30 DOI: 10.1016/j.geotexmem.2025.03.009

Qiangqiang Huang , Xueyu Geng , Feifan Ren

{"title":"Connection failure between reinforcement and facing in geosynthetic reinforced soil bridge abutments: A case study","authors":"Qiangqiang Huang , Xueyu Geng , Feifan Ren","doi":"10.1016/j.geotexmem.2025.03.009","DOIUrl":"10.1016/j.geotexmem.2025.03.009","url":null,"abstract":"<div><div>Geosynthetic-reinforced soil (GRS) bridge abutments are increasingly used in transportation engineering. However, limited research has been conducted on the failure mechanisms of GRS bridge abutments, particularly the connection failures between reinforcement and facing. In this study, large-scale model tests were carried out to investigate the impact of connection failure between reinforcement and facing on the overall stability of GRS bridge abutments. The tests focused on a weaker connection configuration using low-strength cable ties subjected to high vertical loads. Photographic analysis was employed to document deformation and failure processes, while additional data were collected via sensors to monitor settlement, lateral displacement, and strain behavior during loading. The results indicated that inadequate connections between reinforcement and facing could result in progressive deformation, panel detachment, backfill leakage, and collapse under high loads. These findings underscore the importance of a strong connection between reinforcement and facing for maintaining structural stability. To address these issues, improved measures were proposed and validated, demonstrating significant enhancements in load-bearing performance and resilience.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 974-984"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735271","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

Ensemble-based approach for automatic prediction of pullout resistance of geogrids in different soil types 基于集成的不同土工格栅抗拔力自动预测方法

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-04-14 DOI: 10.1016/j.geotexmem.2025.03.004

Vaishnavi Bherde , Samay Kumar Attara , Umashankar Balunaini

{"title":"Ensemble-based approach for automatic prediction of pullout resistance of geogrids in different soil types","authors":"Vaishnavi Bherde , Samay Kumar Attara , Umashankar Balunaini","doi":"10.1016/j.geotexmem.2025.03.004","DOIUrl":"10.1016/j.geotexmem.2025.03.004","url":null,"abstract":"<div><div>Determination of the pullout resistance of geogrid, an essential parameter in MSE wall design, is time-consuming and expensive. The present study applies ensemble methods, namely, random forest, gradient boosting, extreme gradient boosting (XGB), and light gradient boosting to predict the pullout resistance factor (<em>F∗</em>) of geogrid. An extensive review resulting in a large pullout test dataset of 759 data points encompassing various influencing features such as normal stress, relative compaction, fines content, average particle size of fill material, embedment length, ultimate tensile strength, and longitudinal and transverse spacing of ribs of the geogrid, and pullout displacement rate is used to evaluate models. Results showed that the XGB (R<sup>2</sup> = 0.91 and RMSE = 0.18) outperformed the other ensemble approaches. Based on the feature importance analysis on the best-performing XGB model, normal stress, reinforcement embedment length, and relative compaction are found to be the most influencing parameters affecting <em>F∗</em>. A simplistic model to predict <em>F∗</em> as a function of only these three influencing parameters is proposed considering the ensemble model. Furthermore, limited laboratory pullout experiments are performed to evaluate these models. The proposed machine learning models fitted very well with the laboratory <em>F∗</em> values with an error within ±3 %.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 1035-1047"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143829407","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

Tensile failure mechanism and stress-strain behavior of scratched HDPE geomembranes 刮伤HDPE土工膜拉伸破坏机理及应力-应变行为

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-04-17 DOI: 10.1016/j.geotexmem.2025.04.001

Jianmin Li, Junrui Chai, Zengguang Xu, Cheng Cao, Pengyuan Zhang, Han Fu

{"title":"Tensile failure mechanism and stress-strain behavior of scratched HDPE geomembranes","authors":"Jianmin Li, Junrui Chai, Zengguang Xu, Cheng Cao, Pengyuan Zhang, Han Fu","doi":"10.1016/j.geotexmem.2025.04.001","DOIUrl":"10.1016/j.geotexmem.2025.04.001","url":null,"abstract":"<div><div>In the application of geomembranes (GMBs) for anti-seepage purposes, damage and defects are almost inevitable and can lead to premature failure during their service life. This study conducted a series of indoor tensile tests on defective GMBs to evaluate the effects of various defect types, locations, and geometric characteristics on their failure behavior. The results were validated through orthogonal tests to determine the influence of defect quantity and combination patterns on GMB performance. Furthermore, the performance at different stages was assessed under the condition of varying scratch geometric characteristics. The findings indicate that scratches pose a greater threat to GMB performance compared to other defect types. At the same angle, variations in scratch position have a negligible effect on mechanical properties. Among scratch geometric characteristics, length and angle are the primary factors affecting performance. For practical engineering applications, the allowable tensile stress range for scratched GMBs should be maintained between 2.97 and 3.50 MPa, while the allowable tensile strain range should be confined to 1.78–3.30 %. The evaluation and prediction of each stage of scratched GMBs can provide references for design engineers and the repair of scratched GMBs.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 1048-1062"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844764","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

Study on the dynamic performance of heavy-load railway reinforced subgrade under flood condition 洪水条件下重载铁路加筋路基动力性能研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-30 DOI: 10.1016/j.geotexmem.2025.03.005

Lihua Li, Kai Sun, Mengqian Xu, Henglin Xiao, Shuguang Jiang

{"title":"Study on the dynamic performance of heavy-load railway reinforced subgrade under flood condition","authors":"Lihua Li, Kai Sun, Mengqian Xu, Henglin Xiao, Shuguang Jiang","doi":"10.1016/j.geotexmem.2025.03.005","DOIUrl":"10.1016/j.geotexmem.2025.03.005","url":null,"abstract":"<div><div>To mitigate the subgrade deterioration induced by water infiltration, geosynthetics are employed to reinforce overloaded railway subgrades. Indoor model experiments were conducted to simulate dynamic loads under different axle weights, investigating the impacts of immersion on the dynamic characteristics of reinforced subgrades. Results demonstrated that immersion significantly increased the subgrade's stress, settlement, and acceleration. Compared to submerged unreinforced subgrades after immersion, the geocell-reinforced subgrade exhibited a 33 % reduction in additional stress, while the composite-reinforced subgrade, comprising geocell and geotextile, exhibited a 35 % decrease. The geotextile was placed beneath the ballast layer, with the geocell positioned below the geotextile. Additionally, settlement at the middle sleeper was reduced by 29 % for the geocell-reinforced subgrade under 30 t load and 38 % for the composite-reinforced subgrade, demonstrating that reinforcement enhanced subgrade strength, stabilized the upper structure, and mitigated subgrade acceleration. After immersion, geotextiles play a crucial role in maintaining the integrity of the ballast layer and minimizing ballast contamination. A modified model for the additional stress distribution within the ballast layer has been proposed, whereby the additional stress at any point outside the projected surface of the ballast layer can be calculated based on the distances from both the side and front of the sleeper.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 985-998"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143738902","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

Development and application of a nonlinear stress dilatancy model for geocell-reinforced soil via the FEM 基于有限元的土工格室加筋土非线性应力剪胀模型的建立与应用

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-04-09 DOI: 10.1016/j.geotexmem.2025.03.010

Bingbing Zhang , Fei Song , Junding Liu

{"title":"Development and application of a nonlinear stress dilatancy model for geocell-reinforced soil via the FEM","authors":"Bingbing Zhang , Fei Song , Junding Liu","doi":"10.1016/j.geotexmem.2025.03.010","DOIUrl":"10.1016/j.geotexmem.2025.03.010","url":null,"abstract":"<div><div>To address the ambiguities in current ontological models of geocell-reinforced soil and the limitations inherent in finite element analysis methods, a nonlinear stress dilatancy model (NSDM) encompassing geocell-reinforced soil was successfully formulated. This model is based on the interaction between the geocell and the infilled soil, which can consider the confining pressures provided by the geocells and the stress dilatancy model of the soil. A finite element method (FEM) implementation of the model was achieved via the User-defined Material (UMAT) subroutine interface provided by ABAQUS software. Validation of the model was achieved via triaxial tests on geocell-reinforced sand with varying relative densities, as well as reinforced foundation and retaining wall model tests. Concurrently, the model calculation results were compared and analyzed with those obtained from a conventional separated model, and an in-depth exploration of the sensitivity of the model's key parameters was carried out. The findings demonstrate that the UMAT subroutine of the model can accurately predict the reinforced sand triaxial test, the reinforced foundation model test and the retaining wall model test results. Compared with the reinforced soil-separated model, the model delineated in this paper is easier to construct and has markedly improved computational efficiency. Additionally, the model can capture failure within the geocell fill, thereby affording a more precise depiction in the near-failure stage. This research offers an efficient and practical novel methodology for numerical analysis within the domain of geocell-reinforced soil.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":""},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799413","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

Influence of rainfall and drying periods on the performance of a large-scale segmental GRS wall model built with poorly draining local soil 降雨和干燥期对局部排水差的大尺度分段式GRS墙体模型性能的影响

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-09 DOI: 10.1016/j.geotexmem.2025.02.003

M.C. Santos , Yoo C , F.H.M. Portelinha

{"title":"Influence of rainfall and drying periods on the performance of a large-scale segmental GRS wall model built with poorly draining local soil","authors":"M.C. Santos , Yoo C , F.H.M. Portelinha","doi":"10.1016/j.geotexmem.2025.02.003","DOIUrl":"10.1016/j.geotexmem.2025.02.003","url":null,"abstract":"<div><div>The use of poorly draining local soils as backfill material in geosynthetic reinforced soil walls has become a common practice despite the known risks. With climate change effects, it is crucial to understand how these structures will perform under such extreme conditions. In this study, the performance of a large-scale model of a modular block geogrid-reinforced soil wall, using fine-grained backfill material, is evaluated under varying simulated rainfall intensities and drying periods. The model was constructed in a laboratory environment, enabling the implementation of an extensive instrumentation program designed to monitor soil suction, volumetric water content, and the resulting deformation and reinforcement strains. Tensile loads mobilized by the geogrid within the backfill soil and at the connection with block wall facing are discussed in the paper. The study demonstrates the satisfactory performance of a poorly draining reinforced soil wall even after prolonged and intense simulated rainfall. The low hydraulic conductivity of the well-compacted backfill soil, combined with significant surface runoff, helped maintain low levels of soil suction which reflects in apparent cohesion. Drying periods led to varying but significant rates of suction recovery influenced by rainfall-drying patterns. The findings indicate that rainfall intensities of 10 mm/h (240 mm/day) for over 7 days were insufficient to fully eliminate suction in a poorly draining geogrid-reinforced wall.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 847-866"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143579881","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

Use of soilbags to protect flexible pipes against repeated load effects 使用沙袋保护柔性管道免受重复载荷影响

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-02-27 DOI: 10.1016/j.geotexmem.2025.02.004

S.N. Moghaddas Tafreshi , A.F. Ahmadian , A.R. Dawson

{"title":"Use of soilbags to protect flexible pipes against repeated load effects","authors":"S.N. Moghaddas Tafreshi , A.F. Ahmadian , A.R. Dawson","doi":"10.1016/j.geotexmem.2025.02.004","DOIUrl":"10.1016/j.geotexmem.2025.02.004","url":null,"abstract":"<div><div>An investigation was made of the over-trench bridging effect provided by soilbags to reduce the pressure on, and vertical and horizontal diametral change (<em>VDC</em> and <em>HDC</em>) of, buried flexible pipes, along with reductions in trench surface settlement (<em>TSS</em>). Full-scale tests examined the effects of burial depth, soilbag width, number of soilbag layers and distance between layers in trenches with 250-mm diameter pipes subjected to 150 surface loading cycles that simulated vehicular traffic. <em>TSS</em> reduced most when a soilbag was nearest the surface, while positioning a soilbag over the pipe's crown best protected the pipe. The soilbag's width must exceed 1.2 times the loading surface diameter/width to prevent unhelpful downward (punching) movement of soilbags into the trench backfill. Increasing soilbag width beyond 1.6–2 times that diameter/width or using more than two (sometimes three) soilbag layers, delivers diminishing returns. Using one to four soilbag layers, <em>TSS</em>, <em>VDC</em> and pipe pressure reduce to 45-15%, 70-15% and 75-25% of the unreinforced values, respectively, though the improvement rates diminish with increasing layers. Overall, TSS and pipe protection are similarly sensitive to the positioning of two layers of soilbags, while the spacing between the layers has the opposite effect.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 823-846"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510345","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

The effect of a bench on leakage through a cover: A field and numerical assessment 台架对盖层渗漏的影响：现场与数值评估

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-15 DOI: 10.1016/j.geotexmem.2025.02.005

Y.H. Fan , R. Kerry Rowe , R.W.I. Brachman , Jamie F. VanGulck

引用次数: 0

Consolidation of slurry treated by PHDs-VP incorporating development process of clogged zone 含堵塞区发展过程的ph - vp处理浆体固结

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-22 DOI: 10.1016/j.geotexmem.2025.03.003

Kang Yang , Mengmeng Lu , Kuo Li , Xiusong Shi

{"title":"Consolidation of slurry treated by PHDs-VP incorporating development process of clogged zone","authors":"Kang Yang , Mengmeng Lu , Kuo Li , Xiusong Shi","doi":"10.1016/j.geotexmem.2025.03.003","DOIUrl":"10.1016/j.geotexmem.2025.03.003","url":null,"abstract":"<div><div>The prefabricated horizontal drains combined with vacuum preloading (PHDs-VP) method exhibits significant benefits in dredged slurry treatment. This study introduces an analytical model of slurry consolidation treated by PHDs-VP. In this model, the PHD is treated as a permeable boundary with a vacuum pressure. The governing equations are established by dividing the analytical unit into normal zone and clogged zone, and by incorporating the development process of the clogged zone. Numerical solutions are obtained utilizing the finite difference method. The accuracy and reliability of the solutions are validated through both degradation analysis and experimental verification. Furthermore, a parametrical analysis is conducted to investigate the influence of several key parameters on consolidation behavior. The results indicate that the clogging effect significantly retards the consolidation process, with a lower permeability coefficient or a greater thickness of the clogged zone resulting in a more pronounced reduction in the consolidation rate. Additionally, the consolidation rate decreases with the accelerated development of the clogged zone, and this effect becomes more pronounced with denser PHDs layout.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 897-908"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143682583","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

Comparative numerical analysis of anti-liquefaction in sandy soil reinforced with OSC and GESC under sinusoidal loading 正弦荷载作用下盐砂和GESC加筋沙土抗液化的数值对比分析

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-08-01 Epub Date: 2025-03-29 DOI: 10.1016/j.geotexmem.2025.03.007

Xiaocong Cai , Ling Zhang , Zijian Yang , Binbing Mao

{"title":"Comparative numerical analysis of anti-liquefaction in sandy soil reinforced with OSC and GESC under sinusoidal loading","authors":"Xiaocong Cai , Ling Zhang , Zijian Yang , Binbing Mao","doi":"10.1016/j.geotexmem.2025.03.007","DOIUrl":"10.1016/j.geotexmem.2025.03.007","url":null,"abstract":"<div><div>Three-dimensional numerical models are developed to investigate the anti-liquefaction of ordinary (OSCs) and geosynthetic-encased (GESCs) stone columns in sandy soil under sinusoidal loading using the fluid-solid coupling method. The validated models capture and compare the vertical and radial deformation, excess pore water pressure (EPWP), and vertical effective stress of OSC, GESC, and sandy soil. Furthermore, ten essential factors are selected to conduct the parametric study. Numerical results reveal that GESC is more suitable for improving sandy soil and resisting dynamic load considering the deformation and EPWP. The bulging deformation is no longer the primary reason for failure. The partial encasement (e.g., 1-2<em>D</em>, <em>D</em> = column diameter) and short floating and end-bearing GESCs (e.g., 1-2.5<em>D</em>) are not recommended for reinforcing the sandy soil. GESC is more sensitive to low-frequency and high-amplitude loads, with shear and bending, whereas displays a block movement under higher frequency and lower amplitude loading. The change in loading amplitude is more disadvantageous to GESC than loading frequency. GESC with a large diameter cannot effectively resist the dynamic loads.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 4","pages":"Pages 950-973"},"PeriodicalIF":4.7,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724657","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