Geotextiles and Geomembranes最新文献_第7页

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 : 2025-12-01 Epub 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":"2025-12-01","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

The effect of physical-chemical combined clogging on the area density and permeability of geotextile envelopes for subsurface drainage systems in arid regions 干旱区地下排水系统中物化复合堵塞对土工布围护层面积密度和渗透性的影响

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-07-03 DOI: 10.1016/j.geotexmem.2025.06.006

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

{"title":"The effect of physical-chemical combined clogging on the area density and permeability of geotextile envelopes for subsurface drainage systems in arid regions","authors":"Shuai Qin , Chenyao Guo , Jingwei Wu , Shuai He , Haoyu Yang , Chenzhi Yao , Xinman Jiang , Hang Li","doi":"10.1016/j.geotexmem.2025.06.006","DOIUrl":"10.1016/j.geotexmem.2025.06.006","url":null,"abstract":"<div><div>This study investigates the morphological characteristics, development process, and impact on permeability of physical-chemical combined clogging on geotextile envelopes, through laboratory experiments involving particle flow coupled with chemical precipitation. The results show that there is a synergistic effect between physical clogging caused by soil particle accumulation and chemical clogging due to salt precipitation. Chemical precipitation exacerbates physical clogging, while physical clogging promotes the formation of chemical precipitation. The chemical precipitates on the upstream of the geotextile envelope binds the particles to each other and to the fibers of the geotextile envelope, while on the downstream, precipitates tends to encapsulate the fibers, with less physical clogging. After combined clogging, the permeability coefficient of the geotextile envelope decreases rapidly with the increasing of the clogging material, and then decreases slowly. When the area density of the clogging material is less than 91.02 g/m<sup>2</sup>, it shows a linear decrease, and then followed by a logarithmic decrease. Physical-chemical combined clogging is more severe than single physical or chemical clogging. After the permeability stabilizes, for the same clogging mass, the decrease in permeability caused by combined clogging is 1.2 times and 2 times greater than that caused by physical and chemical clogging, respectively.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1332-1342"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144535539","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

Chemical-enhanced electrokinetic geosynthetics (EKG) electro-osmosis combined with vacuum preloading for consolidation and copper remediation in contaminated dredged sludge 化学增强电动土工合成（EKG）电渗透结合真空预压在污染疏浚污泥中的固结和铜修复

IF 6.2 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-08-25 DOI: 10.1016/j.geotexmem.2025.08.008

Yang Shen , Nihao Wei , Kewei Fan , Wencheng Qi , Jianting Feng , Zhiqiang Lai

{"title":"Chemical-enhanced electrokinetic geosynthetics (EKG) electro-osmosis combined with vacuum preloading for consolidation and copper remediation in contaminated dredged sludge","authors":"Yang Shen , Nihao Wei , Kewei Fan , Wencheng Qi , Jianting Feng , Zhiqiang Lai","doi":"10.1016/j.geotexmem.2025.08.008","DOIUrl":"10.1016/j.geotexmem.2025.08.008","url":null,"abstract":"<div><div>Chemical-enhanced electrokinetic geosynthetics (EKG) electro-osmosis combined with vacuum preloading was employed to simultaneously consolidate and remediate copper-contaminated dredged sludge. Five chemical additives—citric acid, tartaric acid, hydrogen peroxide, rhamnolipids, and sodium chloride—were systematically evaluated via model tests. Results show that all additives improve both drainage and copper removal, with sodium chloride exhibited the enhancement in dewatering performance, while rhamnolipid achieved the highest copper removal efficiencies. Mechanistic analysis revealed that chemical additives improved sludge dewatering by enhancing pore water migration—through modifying soil structure, increasing ionic conductivity, or reducing surface tension. They also promoted copper removal by altering speciation: acidic chelating agents reduced pH and stabilized Cu<sup>2+</sup> in soluble complexes, suppressing precipitation, while in near-neutral conditions, cathodic OH<sup>−</sup> dissolved Cu(OH)<sub>2</sub> into mobile species, facilitating transport. Energy analysis confirmed that chemical-enhanced systems improved the energy efficiency of copper removal. These findings support the integrated use of EKG electro-osmosis combined with vacuum preloading, coupled with appropriate chemical agents, as a viable and energy-efficient strategy for the remediation of heavy metal-contaminated dredged sludge.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1600-1609"},"PeriodicalIF":6.2,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895741","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

Geogrid stabilization effectiveness – Comprehensive assessment through multiscale experiments with bender element sensor technology 土工格栅稳定效果——弯曲单元传感器技术多尺度试验综合评价

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-06-07 DOI: 10.1016/j.geotexmem.2025.05.006

Han Wang , Youngdae Kim , Mingu Kang , Erol Tutumluer , Heather Shoup

{"title":"Geogrid stabilization effectiveness – Comprehensive assessment through multiscale experiments with bender element sensor technology","authors":"Han Wang , Youngdae Kim , Mingu Kang , Erol Tutumluer , Heather Shoup","doi":"10.1016/j.geotexmem.2025.05.006","DOIUrl":"10.1016/j.geotexmem.2025.05.006","url":null,"abstract":"<div><div>Geogrids are commonly used in pavement structures to mechanically stabilize unbound aggregate layers to improve structural performance and extend lifespan. Geogrids stabilize aggregate particles by restraining their lateral movements through mechanisms such as interlocking and friction. This paper presents a multiscale experimental study conducted on extruded and welded geogrids, having different aperture shapes and properties, for their stabilization effectiveness through quantifying modulus enhancement using the bender element (BE) sensor technology. The study examines geogrid-stabilized aggregates both in a large-scale testbed with three embedded BE field sensors and in a repeated load triaxial device with geogrid coupons installed at midheight and embedded BE sensor pairs above geogrids. The large-scale testbed allowed lateral pressure measurements under a series of loading and unloading stages. Small strain moduli from the shear wave measurements determined from both experiments quantified geogrid stiffened zones when tested with the same dense-graded aggregates. All four geogrids showed modulus enhancements in both test setups when compared to control test results. The geogrid mechanical stabilization influence zone was observed to be as large as 6 in. (15 cm) above one extruded geogrid. Such quantified modulus enhancements and influence zones are essential for incorporating geogrid into mechanistic-empirical (M-E) pavement design framework.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1200-1214"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144230481","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 the effect of interface temperature on soil-reinforcement interaction mechanism by pullout test 通过拉拔试验研究界面温度对土-筋相互作用机理的影响

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-06-11 DOI: 10.1016/j.geotexmem.2025.06.002

Huaxin Han , Chengzhi Xiao , Jianguang Yin , Yonghua Cao

{"title":"Investigation on the effect of interface temperature on soil-reinforcement interaction mechanism by pullout test","authors":"Huaxin Han , Chengzhi Xiao , Jianguang Yin , Yonghua Cao","doi":"10.1016/j.geotexmem.2025.06.002","DOIUrl":"10.1016/j.geotexmem.2025.06.002","url":null,"abstract":"<div><div>To investigate the effect of interface temperature on the soil-reinforcement interaction mechanism, a series of pullout tests were conducted considering different types of reinforcement (geogrid and non-woven geotextile), backfill (dry sand, wet sand, and clay), and six interface temperatures. The test results indicate that at interface temperatures of 0 °C and above, reinforcement failure didn't occur during the pullout tests, whereas it predominantly occurred at subzero temperatures. Besides, the pullout resistance for the same soil-reinforcement interface gradually decreased as the interface temperature rose. At a given positive interface temperature, the pullout resistance between wet sand and reinforcement was significantly higher than that of the clay-reinforcement interface but lower than that of the dry sand-reinforcement interface. Compared with geotextile reinforcements, geogrids were more difficult to pull out under the same interface temperature and backfill conditions. In addition, the lag effect in the transfer of tensile forces within the reinforcements was significantly influenced by the type of soil-reinforcement interface and the interface temperature. Finally, the progressive deformation mechanism along the reinforcement length at different interface temperatures was analyzed based on the strain distribution in the reinforcement.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1242-1256"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144262322","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 : 2025-12-01 Epub 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":"2025-12-01","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

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 : 2025-12-01 Epub 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":"2025-12-01","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

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 : 2025-12-01 Epub 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":"2025-12-01","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

Laboratory validation of seismic damage assessment in reinforced soil models based on sensor-enabled piezoelectric geogrids (SPGG) 基于传感器压电土工格栅（SPGG）的加筋土模型震害评估实验室验证

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-06-07 DOI: 10.1016/j.geotexmem.2025.05.007

Jun Wang, Zhiqiang Xiang, Hongtao Fu, Yu Rao, Ziyang Gao, Junfeng Ni

{"title":"Laboratory validation of seismic damage assessment in reinforced soil models based on sensor-enabled piezoelectric geogrids (SPGG)","authors":"Jun Wang, Zhiqiang Xiang, Hongtao Fu, Yu Rao, Ziyang Gao, Junfeng Ni","doi":"10.1016/j.geotexmem.2025.05.007","DOIUrl":"10.1016/j.geotexmem.2025.05.007","url":null,"abstract":"<div><div>Earthquakes are common geological disasters, and slopes under seismic loading can trigger coseismic landslides, while also becoming unstable due to accumulated damage caused by the seismic activity. Reinforced soil slopes are widely used as seismic-resistant geotechnical systems. However, traditional geosynthetics cannot sense internal damage in reinforced soil systems, and existing in-situ distributed monitoring technologies are not suitable for seismic conditions, thus limiting accurate post-earthquake stability assessments of slopes. This study presents, for the first time, the use of a batch molding process to fabricate self-sensing piezoelectric geogrids (SPGG) for distributed monitoring of soil behavior under seismic conditions. The SPGG's reinforcement and damage sensing abilities were verified through model experiments. Results show that SPGG significantly enhances soil seismic resistance and can detect soil failure locations through voltage distortions. Additionally, the tensile deformation of the reinforcement material can be quantified with sub-centimeter precision by tracking impedance changes, enabling high-precision distributed monitoring of reinforced soil under seismic conditions. Notably, when integrated with wireless transmission technology, the SPGG-based monitoring system offers a promising solution for real-time monitoring and early warning in road infrastructure, where rapid detection and response to seismic hazards are critical for mitigating catastrophic outcomes.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1215-1227"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237430","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

Consolidation analysis of staged-filled soil slurry with combined grid-horizontal and vertical drains system under vacuum preloading 真空预压下格栅-水平-垂直复合排水系统阶段填土浆体固结分析

IF 4.7 1区工程技术

Geotextiles and Geomembranes Pub Date : 2025-12-01 Epub Date: 2025-06-19 DOI: 10.1016/j.geotexmem.2025.06.003

Ding-Bao Song , Yu Pan , Jian-Hua Yin , Zhen-Yu Yin , He-Fu Pu

{"title":"Consolidation analysis of staged-filled soil slurry with combined grid-horizontal and vertical drains system under vacuum preloading","authors":"Ding-Bao Song , Yu Pan , Jian-Hua Yin , Zhen-Yu Yin , He-Fu Pu","doi":"10.1016/j.geotexmem.2025.06.003","DOIUrl":"10.1016/j.geotexmem.2025.06.003","url":null,"abstract":"<div><div>This study presents a combined method utilizing grid-horizontal drains assisted by vacuum preloading for initial treatment, and vertical drains with vacuum preloading for further enhancement, aimed at the beneficial reuse of dredged marine sediments as fill material. A novel method for analyzing the consolidation of staged-filled soft soils with grid-horizontal and vertical drains under vacuum preloading is established, and a numerical model, called <strong>C</strong>ombined-drains <strong>C</strong>onsolidation <strong>S</strong>ettlement (CCS), is developed. CCS accounts for staged filling, drain combinations, creep strains, hydraulic conductivity anisotropy, vertical and radial flows, smear effects, time-dependent surcharge and/or vacuum loading, and variable compressibility and hydraulic conductivity throughout the consolidation process. A large-scale laboratory consolidation test is presented, focusing on staged-filled marine sediments treated by the combined system, demonstrating beneficial reuse potential of high-water-content dredged sediments. Settlement and water content predictions using CCS agree well with experimental results. The effects of paving rate (lateral spacing) and the number of grid-horizontal drain layers (vertical spacing) are evaluated using the CCS model. Based on these results, cost-effective design recommendations are proposed. Comparison of treatment efficiency shows the combined method significantly enhances improvement by enabling earlier application of vacuum consolidation than the PVD-only method.</div></div>","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"53 6","pages":"Pages 1281-1298"},"PeriodicalIF":4.7,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144322601","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