Geotextiles and Geomembranes最新文献_第6页

Generation and prediction of defect in HDPE GMB serving as landfill base barrier 填埋场基障HDPE GMB缺陷的产生与预测

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-02-09 DOI: 10.1016/j.geotexmem.2025.01.009

Feng Yang , Jingcai Liu , Ting Lin , Changxin Nai , Yuqiang Liu , Panpan Qiu , Ya Xu , Can Qian

引用次数: 0

Investigation of geogrid-reinforced unbound granular material behavior using constant radial stiffness triaxial tests 用恒定径向刚度三轴试验研究土工格栅加筋松散颗粒材料的性能

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-02-08 DOI: 10.1016/j.geotexmem.2025.01.007

Ziheng Wang, Yue Chen, Yuekai Xie, Jianfeng Xue

{"title":"Investigation of geogrid-reinforced unbound granular material behavior using constant radial stiffness triaxial tests","authors":"Ziheng Wang, Yue Chen, Yuekai Xie, Jianfeng Xue","doi":"10.1016/j.geotexmem.2025.01.007","DOIUrl":"10.1016/j.geotexmem.2025.01.007","url":null,"abstract":"<div><div>A series of constant radial stiffness triaxial (CRST) tests were performed to investigate the long-term behavior of geogrid-reinforced unbound granular materials (UGMs). Two types of multi-stage cyclic loading tests were conducted with various vertical constant loads (<span><math><mrow><msub><mi>σ</mi><mrow><mn>1</mn><mo>,</mo><mi>min</mi></mrow></msub></mrow></math></span>). In the first type, <span><math><mrow><msub><mi>σ</mi><mrow><mn>1</mn><mo>,</mo><mi>min</mi></mrow></msub></mrow></math></span> was maintained at 10% of the maximum axial stress at each loading stage to determine the resilient modulus. The results indicated that the inclusion of geogrid increased the resilient modulus by 21–25 MPa under various cyclic loads. In the second type of tests, three tests were performed with <span><math><mrow><msub><mi>σ</mi><mrow><mn>1</mn><mo>,</mo><mi>min</mi></mrow></msub></mrow></math></span> of 5, 10, and 20 kPa, respectively, to investigate the effects of vertical constant loads on the contributions of geogrids to the confining stress and permanent deformation. The results showed that the inclusion of geogrid mitigated permanent deformation by enhancing the confining stress. However, an adverse effect of the geogrid on permanent deformation was observed when <span><math><mrow><msub><mi>σ</mi><mrow><mn>1</mn><mo>,</mo><mi>min</mi></mrow></msub></mrow></math></span> was 5 kPa, which can be attributed to the loss of contact between the geogrid and aggregates. Furthermore, R-values and stress paths obtained in this study also demonstrated the capability of CRST tests in quantifying the effects of geogrids on UGMs under cyclic loadings.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 3","pages":"Pages 728-743"},"PeriodicalIF":4.7,"publicationDate":"2025-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143349965","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

Mitigating frost heave of an expansive soil channel reinforced with soilbags: Insights from physical model tests 缓解用土袋加固的膨胀土通道的霜胀：来自物理模型试验的见解

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-02-01 DOI: 10.1016/j.geotexmem.2025.01.004

Yonggan Zhang , Yang Lu , Sihong Liu , Jin Liu , Yulong Liu , Jinbo Tian

{"title":"Mitigating frost heave of an expansive soil channel reinforced with soilbags: Insights from physical model tests","authors":"Yonggan Zhang , Yang Lu , Sihong Liu , Jin Liu , Yulong Liu , Jinbo Tian","doi":"10.1016/j.geotexmem.2025.01.004","DOIUrl":"10.1016/j.geotexmem.2025.01.004","url":null,"abstract":"<div><div>Frost heave significantly affects the normal operation and long-term performance of expansive soil channels, and the soilbag reinforcement method offers a potential solution for its mitigation and control. To confirm the effectiveness of the soilbag reinforcement method in frost heave mitigation of expansive soil channels, a middle-scale model test apparatus was developed to be equipped with temperature control and water supply functions, and then two groups of physical model tests were conducted. The evolution of water and heat distribution, frost heave deformation, and surface morphology in expansive soil channels with and without soilbag reinforcement during the freezing process were carefully compared. The experimental results demonstrate that: 1) The developed apparatus presents excellent performance, which can accurately capture the freezing behavior differences between an expansive soil channel and a soilbag-reinforced channel. 2) Utilizing soilbags in expansive soil channels not only provides thermal insulation but also mitigates the segregation frost heave. 3) Soilbags have the ability to decrease water evaporation from the bagged expansive soil, effectively preventing the soil from shrinking due to water loss while also reducing uneven deformation. Furthermore, the frost heave mitigation mechanism of the soilbag-reinforced expansive soil channel was well illustrated with two idealized schematic diagrams.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 3","pages":"Pages 713-727"},"PeriodicalIF":4.7,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143125234","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

Estimation of the carbon sequestration potential of ecological retaining structures: A comparative study 生态围护结构固碳潜力估算：比较研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-01-27 DOI: 10.1016/j.geotexmem.2025.01.003

Yuming Zhu , Fei Zhang , Junjun Ni , Shilin Jia

{"title":"Estimation of the carbon sequestration potential of ecological retaining structures: A comparative study","authors":"Yuming Zhu , Fei Zhang , Junjun Ni , Shilin Jia","doi":"10.1016/j.geotexmem.2025.01.003","DOIUrl":"10.1016/j.geotexmem.2025.01.003","url":null,"abstract":"<div><div>In the pursuit of sustainable development, the environmental impacts of geotechnical engineering are often neglected. The utilization of geosynthetic-reinforced soil (GRS) and ecological slope protection technology presents promising and eco-friendly alternatives, paving the way for a cleaner future. In this study, the temporal and spatial distribution of the carbon coefficient (CC) and embodied energy coefficient (EEC) are characterized through data analysis. Subsequently, the impact of spatial factors on the total embodied carbon (TEC) is considered. Finally, the carbon sequestration effect of vegetation through photosynthesis is quantified to examine the long-term environmental impact of the selected design options. The findings suggest that embodied carbon (EC) is preferable as an indicator for environmental impact assessment. The GRS technology can effectively mitigate approximately one-third of the environmental impacts compared to conventional methods. Furthermore, when combined with vegetation, GRS technology can achieve net-zero emissions approximately 30 years after the construction of the ecological retaining structure. Although many factors are not considered in this study, the results may inform initial decisions to realize more sustainable infrastructure.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 3","pages":"Pages 697-712"},"PeriodicalIF":4.7,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055324","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 vacuum consolidation of recycled fibre-improved soft soils assisted with prefabricated vertical drain 预制竖向排水辅助下再生纤维改良软土真空固结试验研究

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-01-20 DOI: 10.1016/j.geotexmem.2025.01.002

Kai Lou , Zhen-Yu Yin , Ding-Bao Song , Wei-Feng Huang

{"title":"Experimental study on the vacuum consolidation of recycled fibre-improved soft soils assisted with prefabricated vertical drain","authors":"Kai Lou , Zhen-Yu Yin , Ding-Bao Song , Wei-Feng Huang","doi":"10.1016/j.geotexmem.2025.01.002","DOIUrl":"10.1016/j.geotexmem.2025.01.002","url":null,"abstract":"<div><div>Billions of face masks were discarded daily, causing severe environmental concerns. Recycling waste face masks presents a significant challenge. Meanwhile, the traditional vacuum preloading shows limitations on the performance on soft soil ground. This paper investigates the potential benefits of reusing Face-Mask Fibres (FMF) as an admixture to enhance the treatment effects of vacuum preloading on soft soils. The performance of an environmentally biodegradable type of Prefabricated Vertical Drain (PVD) is also compared with that of conventional PVD through a series of laboratory physical model tests. The settlement, distributions of vacuum pressure, porewater pressure, and water content were monitored. In addition, after vacuum preloading, the undrained shear strength of treated soil was determined. Scanning electron microscope tests were also carried out to analyse the microscopic structure of treated soil. Results reveal that face-mask fibres significantly improved the performances of vacuum preloading in terms of vacuum dewatering and strengthening. Furthermore, the rate of vacuum consolidation was accelerated due to the additional drainage channels provided by recycled face-mask fibres. Notably, the final water content of the treated soil decreased to 41.8%, which is markedly lower than the liquid limit of 63.9%. The undrained shear strength exhibited considerable improvement, nearly doubling in value. The mechanism of how FMF works was also discussed.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 3","pages":"Pages 681-696"},"PeriodicalIF":4.7,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143020134","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

Influence of perforation characteristics and geotextile envelopes on the drain pipe 射孔特性及土工布围护结构对排水管的影响

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-01-09 DOI: 10.1016/j.geotexmem.2024.12.008

Yingao Zhang , Shaoli Wang , Ruixia Hao

引用次数: 0

An approximate solution of consolidation for double-layered ground with different smear radii by vertical drains 不同涂抹半径双层地基垂直排水固结的近似解

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-01-07 DOI: 10.1016/j.geotexmem.2025.01.001

Desheng Li , Yonghui Chen , Long Chen , Kaizhe Shang , Junquan Dong

{"title":"An approximate solution of consolidation for double-layered ground with different smear radii by vertical drains","authors":"Desheng Li , Yonghui Chen , Long Chen , Kaizhe Shang , Junquan Dong","doi":"10.1016/j.geotexmem.2025.01.001","DOIUrl":"10.1016/j.geotexmem.2025.01.001","url":null,"abstract":"<div><div>An analytical solution for consolidation of double-layered ground by vertical drains is proposed, in which only the radial seepage is taken into consideration and the smear radius varies with soil layers. To improve the computing efficiency, a simplified method for selecting serious solutions is presented. The approximate solution is illustrated by Tang's solution (Tang and Onitsuka, 2001) and a large radial consolidation test. The error caused by the forbiddance of vertical drainage can be ignored when the ratio of vertical time factor to radial time factor is small enough, for example, 1/200; and which is easy to satisfy in the field. Through adjusting the control precision of series solutions, the consolidation behavior at any soil layer can be calculated. Horizontal permeability coefficient and smear radius affect the consolidation rate, especially when changing them in the layer which has smaller consolidation coefficient. Moreover, the orthogonal relation for the double-layered and muti-layered system is demonstrated. Using the proposed method, analytical solution for consolidation of double-layered ground by vertical drains can be more acceptable to engineers.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 2","pages":"Pages 661-669"},"PeriodicalIF":4.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142935442","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

Long-term performance of polyethylene geomembranes to contain brine 聚乙烯土工膜长期耐卤水性能

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-01-02 DOI: 10.1016/j.geotexmem.2024.12.006

M. Zafari , R. Kerry Rowe , R. Awad

{"title":"Long-term performance of polyethylene geomembranes to contain brine","authors":"M. Zafari , R. Kerry Rowe , R. Awad","doi":"10.1016/j.geotexmem.2024.12.006","DOIUrl":"10.1016/j.geotexmem.2024.12.006","url":null,"abstract":"<div><div>The degradation of five fortified polyethylene geomembranes (three HDPE, one LLDPE, and one blended) with high initial properties compared to minimum requirements in GRI-GM13 is investigated when immersed in brine at three concentrations (100%, 50%, and 10% brine) and deionized water at temperatures ranging from 25 to 95°C for 8 years. The performance of the geomembranes in different incubation fluids is compared to explore the effect of salt concentration on the durability of geomembranes. The results indicate that the high initial properties of a GMB may not be indicative of its long-term performance due to the effect of other factors like GMB resin, stabilizers, thickness, exposure conditions, and manufacturing process on GMB degradation. Increasing salt concentration decreases the rate of antioxidant depletion, with a depletion rate in 10% brine 1.5 times faster than that in 100% brine. Thus, any assessment of the likely service life of a polyethylene geomembrane in a brine pond with variable salt concentration requires investigating their performance over the expected range of brine concentrations. Temperature and choice of geomembrane (especially antioxidant package) are shown to have a significant (e.g., by a factor of 4 at 55°C in brine) effect on liner longevity.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 2","pages":"Pages 642-660"},"PeriodicalIF":4.7,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142935440","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

Field behavior of a GRS bridge approach retaining wall on highly compressible foundation soils 高压缩性地基土上GRS桥接近挡土墙的场特性

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2024-12-31 DOI: 10.1016/j.geotexmem.2024.12.007

Chunhai Wang , Huabei Liu , Mengyuan Luo , Kui Gao , Juntao Zhu , Kaifeng Zeng

{"title":"Field behavior of a GRS bridge approach retaining wall on highly compressible foundation soils","authors":"Chunhai Wang , Huabei Liu , Mengyuan Luo , Kui Gao , Juntao Zhu , Kaifeng Zeng","doi":"10.1016/j.geotexmem.2024.12.007","DOIUrl":"10.1016/j.geotexmem.2024.12.007","url":null,"abstract":"<div><div>To reveal the behavior of geosynthetic-reinforced soil (GRS) bridge approach retaining walls on highly compressible foundation soils, in this study, a GRS bridge approach adjacent to the Yangtze River was monitored for approximately 3 years during construction and post-construction. The settlement of the GRS bridge approach, the vertical earth pressure at the base of the backfill soil, and the reinforcement deformation were monitored. The monitoring points were arranged on the left and right sides of a cross-section and a longitudinal section at the mid-span. The results showed that the settlement of the GRS bridge approach was large and uneven, and the settlement rates were influenced by the water level of the Yangtze River. Due to the large and differential settlement, the distributions of the vertical earth pressure and geogrid reinforcement strain for a retaining wall constructed on highly compressible foundation soils were different from those for a retaining wall constructed on stable foundation soils. The overall GRS bridge approach performed well with large settlements, with only some minor structural problems in the facing of the retaining wall. This indicated that the flexible GRS bridge approach was a good choice when the retaining wall was constructed on highly compressible foundation soils.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 2","pages":"Pages 630-641"},"PeriodicalIF":4.7,"publicationDate":"2024-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905674","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 model for predicting permeability of geotextile envelope for subsurface drainage after combined clogging in arid areas 干旱区复合堵塞后土工布包层地下排水渗透性预测模型

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2024-12-30 DOI: 10.1016/j.geotexmem.2024.12.003

Shuai Qin , Chenyao Guo , Jingwei Wu , Shuai He , Haoyu Yang , Chenzhi Yao , Xinman Jiang , Hang Li

{"title":"A model for predicting permeability of geotextile envelope for subsurface drainage after combined clogging in arid areas","authors":"Shuai Qin , Chenyao Guo , Jingwei Wu , Shuai He , Haoyu Yang , Chenzhi Yao , Xinman Jiang , Hang Li","doi":"10.1016/j.geotexmem.2024.12.003","DOIUrl":"10.1016/j.geotexmem.2024.12.003","url":null,"abstract":"<div><div>This study develops a coupled model for the combined clogging and permeability coefficient of a geotextile envelope. Based on the characteristics of pore size distribution and its impact on permeability coefficient after clogging, a permeability coefficient model assuming the geotextile is composed of multiple layers of planar mesh is developed. Then, based on the range of pore size after clogging, hypotheses for large-pore clogging area and small-pore permeable area are proposed to simulate the process of decreasing the theoretical maximum pore size of the geotextile and the increasing area of large-pore clogging area. The physical and chemical clogging models are coupled and field sampling was used to confirm the availability of the model. Results indicate that the model effectively simulates the impact of clogging on the permeability coefficient. Additionally, sensitivity analysis and trend simulations show that permeability reduction coefficient (<span><math><mrow><msub><mi>β</mi><mn>1</mn></msub></mrow></math></span>), area density (<span><math><mrow><msub><mi>μ</mi><mrow><mi>g</mi><mn>0</mn></mrow></msub></mrow></math></span>), and saturation index (<span><math><mrow><mi>S</mi><mi>I</mi></mrow></math></span>) are the main factors affecting combined clogging and permeability, with <span><math><mrow><msub><mi>β</mi><mn>1</mn></msub></mrow></math></span> and <span><math><mrow><msub><mi>μ</mi><mrow><mi>g</mi><mn>0</mn></mrow></msub></mrow></math></span> having significant early impacts, while <span><math><mrow><mi>S</mi><mi>I</mi></mrow></math></span> has a greater impact in the later stages. When <span><math><mrow><msub><mi>β</mi><mn>1</mn></msub></mrow></math></span> is equal to 0.3 and <span><math><mrow><mi>S</mi><mi>I</mi></mrow></math></span> is greater than 1.0, the geotextile envelope for subsurface drainage faces a high risk of combined clogging.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 2","pages":"Pages 619-629"},"PeriodicalIF":4.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905647","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