Transportation Geotechnics最新文献_第10页

Model tests and numerical simulations of deformation repair effect for operating shield tunnels under horizontal lateral grouting 水平横向注浆下运营盾构隧道变形修复效应的模型试验和数值模拟

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-24 DOI: 10.1016/j.trgeo.2024.101277

Mingjie Ma , Xinan Yang , Jian Zhou , Luheng Li , Jing Tian

{"title":"Model tests and numerical simulations of deformation repair effect for operating shield tunnels under horizontal lateral grouting","authors":"Mingjie Ma , Xinan Yang , Jian Zhou , Luheng Li , Jing Tian","doi":"10.1016/j.trgeo.2024.101277","DOIUrl":"10.1016/j.trgeo.2024.101277","url":null,"abstract":"<div><p>To address the large deformation problem of operating straight-joint assembled shield tunnels in soft soil, horizontal lateral grouting is often used. Using an independently designed and developed lateral grouting test device, a horizontal lateral grouting model test was conducted to study the tunnel force state and deformation repair law under the action of lateral grouting. The mechanical responses of tunnel under single-hole grouting (SHG) and two double-holes grouting (DHG) cases were comparatively analyzed, and the test results were further validated via numerical simulations. The results indicate that several key indicators of tunnel behavior, including additional pressure, bending moment, radial displacement, convergence deformation, and ellipticity, exhibit a positive correlation with the grouting volume and a negative correlation with the distance to the grouting point when implementing SHG. Expect for radial displacement, all of these metrics caused by DHG were greater than those caused by SHG. The horizontal radial displacement increases under same-side DHG but decreases under different-side DHG. Interestingly, same-side DHG is more favorable for reducing internal force and repairing tunnel deformation, and effectively improves tunnel differentiated deformation state along the longitudinal direction. However, different-side DHG can provide a better effect for transverse convergence deformation repair under the premise of minimizing tunnel overall displacement.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141136452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Mini time domain reflectometry probe for monitoring local soil moisture of cut-off walls in centrifuge model tests 用于监测离心机模型试验中截水墙局部土壤湿度的微型时域反射探头

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-23 DOI: 10.1016/j.trgeo.2024.101278

Honghan Dong , Yun-Min Chen , Yu-Chao Li

{"title":"Mini time domain reflectometry probe for monitoring local soil moisture of cut-off walls in centrifuge model tests","authors":"Honghan Dong , Yun-Min Chen , Yu-Chao Li","doi":"10.1016/j.trgeo.2024.101278","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101278","url":null,"abstract":"<div><p>Moisture content is a critical geotechnical property of soils affecting the compressibility, shear strength and permeability. Time domain reflectometry (TDR) has been widely used to monitor the soil moisture content in field and unit cell and column tests in laboratory, while the typical TDR probes can not be used in laboratory scaled-down model tests since their needle lengths are no less than 5 cm. This paper presents a novel-designed and fabricated three-needle mini TDR probe, whose needles are 22 mm in length and 2 mm in diameter with a 10 mm needle spacing. The suitability and performance of the mini TDR probe have been evaluated in laboratory. The effectiveness of the TDR probe was validated through monitoring the consolidation process of a 6-cm thick soil-bentonite (SB) slurry-trench cut-off wall in the centrifuge model test (acceleration = 20g). The results indicate that the mini TDR probe is capable of real-time monitoring of soil moisture content variation in the supergravity condition. The proposed mini TDR probe is fabricated easily and quickly and has a great potential for monitoring local soil moisture content in laboratory model tests.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141095595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Upward soil arching effect under unloading: mechanism, theory and engineering application 卸载下的土壤上拱效应：机理、理论与工程应用

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-22 DOI: 10.1016/j.trgeo.2024.101276

Ren-Peng Chen , Han-Lin Wang , Xiang-Shen Fu , Fanyan Meng , Qi-Wei Liu , Xing-Tao Lin

{"title":"Upward soil arching effect under unloading: mechanism, theory and engineering application","authors":"Ren-Peng Chen , Han-Lin Wang , Xiang-Shen Fu , Fanyan Meng , Qi-Wei Liu , Xing-Tao Lin","doi":"10.1016/j.trgeo.2024.101276","DOIUrl":"10.1016/j.trgeo.2024.101276","url":null,"abstract":"<div><p>Upward soil arching effect under unloading indicates the unloading part moves in a vertically downward direction, generating the arching zone and the loosened zone towards an upward direction. This study presents a summary of definitions, characteristics, theoretical models and engineering applications for the upward soil arching effect under unloading. The evolution of the upward soil arching effect is highly related to the unloading/differential displacement. The characteristics of the upward soil arching effect under unloading are comprehensively interpreted in terms of the normalized height of arching, the minimum soil arching ratio (at which state the maximum arching is developed) and the normalized unloading displacement to reach the maximum arching state. Two deformation-dependent theoretical models are introduced, to appropriately interpret and predict the variation of the soil arching ratio with the normalized unloading displacement (i.e., the ground reaction curve). Using the research findings for the upward soil arching effect under unloading, the settlement of the geosynthetic-reinforced pile-supported embankment as well as the face stability and ground settlement during tunnelling are proven to be precisely predicted and well controlled.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141131836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Reimagining unbound road pavement technology: Integrating testing, design, construction and performance in the post-digital era 重新想象无约束路面铺设技术：在后数字时代整合测试、设计、施工和性能

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-19 DOI: 10.1016/j.trgeo.2024.101274

Jayantha Kodikara, Arooran Sounthararajah, Liuxin Chen

{"title":"Reimagining unbound road pavement technology: Integrating testing, design, construction and performance in the post-digital era","authors":"Jayantha Kodikara, Arooran Sounthararajah, Liuxin Chen","doi":"10.1016/j.trgeo.2024.101274","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101274","url":null,"abstract":"<div><p>The Industry 4.0 revolution signifies a pivotal transition in pavement technology, emphasising the integration of digital and physical systems to revamp traditional, empirical-based pavement design, construction, and maintenance practices. This shift promises enhanced efficiency, sustainability, and a move towards integrated practices, highlighted by adopting “Digital Twin” technology. Unlike traditional Building Information Modeling (BIM), Digital Twin technology offers a real-time, dynamic representation of physical infrastructure, enabling improved asset management through distributed sensing and predictive performance analytics. Leveraging findings from the Australian Research Council (ARC)’s Industry Transformation Research Hub for Smart Next Generation Transport Pavements (SPARC Hub), this paper focuses on the integration of pavement testing, design, construction, condition assessment and asset management into the lifecycle of unbound road pavements. The paper outlines how such technological integration streamlines decision-making processes and significantly boosts the functionality and longevity of pavement infrastructures. Despite facing challenges like cost, data security, and the need for specialised skills, the potential for digital technologies to improve pavement durability, efficiency, and sustainability is significant. Future research directions are identified to overcome implementation barriers, explore untapped technological potentials, and assess the sustainability benefits of digital approaches in pavement engineering, aiming to forge more resilient, efficient, and sustainable road networks for future generations.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141090020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Shallow defects identification for urban roads using interpretable dynamic broad network 利用可解释动态广义网络识别城市道路浅层缺陷

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-16 DOI: 10.1016/j.trgeo.2024.101273

Yang Zhang , Ruyang Yin , Xiao-Mei Yang , Yi-Qing Ni

{"title":"Shallow defects identification for urban roads using interpretable dynamic broad network","authors":"Yang Zhang , Ruyang Yin , Xiao-Mei Yang , Yi-Qing Ni","doi":"10.1016/j.trgeo.2024.101273","DOIUrl":"10.1016/j.trgeo.2024.101273","url":null,"abstract":"<div><p>Deep learning is extensively utilised in transport geotechnical engineering. However, deep architectures have large computational costs and update times, while failing to understand decisions. To this regard, we propose an interpretable dynamic broad network combined with ground-penetrating radar for internal defect identification in roadbeds. The method is more suitable for feature characterisation of two-dimensional data and satisfies incremental updates. The test results indicated that the proposed method has an average recognition accuracy of 0.9124 for the four types of internal defects in roadbeds. Compared to the other four classical machine learning methods, it balances training efficiency and recognition accuracy. Robustness analysis results demonstrated that the method is noise-resistant. However, comprehending the recognition results of intelligent algorithms is a key topic. Local interpretation approach is introduced to quantify the feature importance that affects the decision of the model. Based on the feature importance calculation, it is possible to distinguish between positive and negative regions in one sample that influence the decision of the detection model. These interpretative analyses can assist us in better understanding the reasons for decisions generated by the detection model that provide technical support for subsequent enhancements.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141062992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Impact of particle arrangement and model dimensions on DEM modeling of high-speed railway ballasted tracks in 2D and 3D 颗粒排列和模型尺寸对二维和三维高速铁路有砟轨道 DEM 建模的影响

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-13 DOI: 10.1016/j.trgeo.2024.101272

Alireza Ahmadi , Carl Wersäll , Stefan Larsson

{"title":"Impact of particle arrangement and model dimensions on DEM modeling of high-speed railway ballasted tracks in 2D and 3D","authors":"Alireza Ahmadi , Carl Wersäll , Stefan Larsson","doi":"10.1016/j.trgeo.2024.101272","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101272","url":null,"abstract":"<div><p>Modelling railway projects has a main challenge in the discrete element method (DEM). The granular material of the embankment consists of millions of fine angular particles which are difficult to model due to the long computational time. The long computational time also prevents the modeling of the higher number of loading cycles. As a result, researchers prefer to simulate the project in 2D to accelerate the simulation. While 2D simulations present a seemingly simple option for modeling railways, they tend to oversimplify the intricacies of particle interactions and the distribution of stress. Nonetheless, the extent to which these simplifications affect the authenticity of the simulations has remained ambiguous. In this study, the periodic cell replication method is used to build extensive long railway tracks significantly faster than conventional methods. Then, this DEM model is calibrated against the measurement results of a physical full-scale ballasted track. The model is then used to simulate several railway projects with different initial particle arrangements and model dimensions in both 2D and 3D. The results show that the 2D models are more dependant on the initial particle arrangement which shows different behavior for the same model. In addition, 2D simulations are incapable of reproducing the principal stress rotation in granular layers due to the moving load of the train wheel. As a result, 3D DEM simulations using the periodic cell replication method is suggested for studying the railway tracks.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S221439122400093X/pdfft?md5=cb62ddff1749e71b069125ff5e641b42&pid=1-s2.0-S221439122400093X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140947013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Investigation on mechanical behaviors and energy characteristics of deep-buried marble in a hydraulic tunnel in Southwest China 中国西南某水工隧道深埋大理石力学行为和能量特征研究

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-08 DOI: 10.1016/j.trgeo.2024.101270

Yan Zhang , Chunchi Ma , Yaohui Gao , Kai Meng

{"title":"Investigation on mechanical behaviors and energy characteristics of deep-buried marble in a hydraulic tunnel in Southwest China","authors":"Yan Zhang , Chunchi Ma , Yaohui Gao , Kai Meng","doi":"10.1016/j.trgeo.2024.101270","DOIUrl":"10.1016/j.trgeo.2024.101270","url":null,"abstract":"<div><p>Shear behavior of rock is of great significance to the stability of deep-buried rock in transportation geotechnical engineering. A series of direct shear tests are carried out on deep-buried marble with different size and shape to focused on the mechanical properties and size shape effects of deeply buried marble, which have been less studied previously. The results show that the size and shape of the specimen have a relatively small impact on the trend of shear stress-shear displacement curve. The failure morphology at the front and rear surfaces shows a significant normal stress effect. Some properties of specimens with different sizes and shapes increase with increasing normal stress, but the dilation angle generally decreases with the increasing normal stress. With the increase of the shear plane size of intact specimen, the cohesion decreases gradually while the internal friction angle increases steadily. The difference value in peak strain between axial compression and direct shear tests is relatively small while it is huge for the peak compression and peak shear strength. The results in this study are beneficial for further understanding the shear mechanics, energy evolution process and size effects of deep-buried rock in transportation geotechnical engineering.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141057778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Transportation bridge infrastructure asset condition monitoring using uncrewed aerial vehicles (UAVs) 使用无人驾驶飞行器（UAV）监测交通桥梁基础设施资产状况

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-07 DOI: 10.1016/j.trgeo.2024.101268

Surya Sarat Chandra Congress , Anand J. Puppala , Jesse Escamilla III , Raja Jaladurgam , Prince Kumar

{"title":"Transportation bridge infrastructure asset condition monitoring using uncrewed aerial vehicles (UAVs)","authors":"Surya Sarat Chandra Congress , Anand J. Puppala , Jesse Escamilla III , Raja Jaladurgam , Prince Kumar","doi":"10.1016/j.trgeo.2024.101268","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101268","url":null,"abstract":"<div><p>The optimal performance of a road transportation network depends on the serviceability and reliability of bridges connecting the pavements. Bridge performance depends on several geotechnical assets among which abutments play a key role as they support the bridge span, and transfer the vertical and horizontal loads from the superstructure to the foundation. Soil abutments are designed to be stable against overturning and sliding and prevent differential settlement and excessive lateral movements. In the United States, 42 % of bridges are observed to be over 50 years old. Department of Transportation (DOT) agencies periodically monitor and assess the bridge conditions typically every two years. Due to the costs and the time involved in conducting inspections using traditional data collection tools, DOTs are exploring innovative technologies to conduct inspections and realize benefits in terms of access, cost, and safety. They have widely adopted the use of uncrewed aerial vehicles (UAVs) for structural health monitoring of bridges. A few studies also conducted 360⁰ bridge inspections using camera sensors mounted on UAVs in the recent past. In this current study, the US Federal Aviation Administration (FAA) guidelines for commercial use of drones were discussed and followed in field studies. Further, UAVs were demonstrated for conducting 360° bridge inspections and identifying the erosion near abutments using three-dimensional models. This paper presents the application of innovative technologies for geotechnical assessments of two bridges in the Alaska region, with a focus on assessing the need for rehabilitation measures. These new technologies have become essential for reliable condition monitoring post-disaster events as well. This approach is expected to benefit the agencies in managing the transportation geotechnical assets in a timely and cost-effective manner.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140947580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Soil mechanics principles for modelling railway track performance 用于模拟铁轨性能的土壤力学原理

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-04 DOI: 10.1016/j.trgeo.2024.101265

William Powrie

{"title":"Soil mechanics principles for modelling railway track performance","authors":"William Powrie","doi":"10.1016/j.trgeo.2024.101265","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101265","url":null,"abstract":"<div><p>Predicting the performance of railway track is difficult owing to the complex and repeated nature of the loading, the many millions of cycles applied over the life of the structure, the need to characterise the often-infinitesimal rate of accumulation of plastic settlement, and the importance of differential settlements in the along-track direction, which can adversely impact train ride and passenger comfort. These come in addition to the usual soil mechanics challenges of reproducing in a constitutive model the real behaviour of soil and soil-like materials such as railway ballast. Degradation of the geomaterials comprising the trackbed and the underlying ground or earthwork owing to mechanical and environmental effects is a further concern. The paper discusses these issues and explores the application of fundamental soil mechanics principles and advanced constitutive models to understanding and quantifying their effects on railway track and trackbed performance. Recommendations for future research are made.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2214391224000862/pdfft?md5=fd93309c6ee5e2c08052f3ae3eb02b45&pid=1-s2.0-S2214391224000862-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140947581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Soft Clay Modified with Municipal Solid Waste and Stabilized with Nano-MgO for Pavement Subgrade and Embankment Fill Applications 用城市固体废弃物改性并用纳米氧化镁稳定的软粘土在路面基层和路堤填料中的应用

IF 5.3 2区工程技术

Transportation Geotechnics Pub Date : 2024-05-01 DOI: 10.1016/j.trgeo.2024.101261

Ali Ohadian , Navid Khayat , Mehdi Mokhberi , Suksun Horpibulsuk

{"title":"Soft Clay Modified with Municipal Solid Waste and Stabilized with Nano-MgO for Pavement Subgrade and Embankment Fill Applications","authors":"Ali Ohadian , Navid Khayat , Mehdi Mokhberi , Suksun Horpibulsuk","doi":"10.1016/j.trgeo.2024.101261","DOIUrl":"https://doi.org/10.1016/j.trgeo.2024.101261","url":null,"abstract":"<div><p>Municipal solid waste (MSW) is the largest group of non-hazardous waste. Four percentages of MSW replacement (15 %, 25 %, 35 %, and 45 % by weight) were used for chemical modification of soft clay at 1, 14, and 28 days of curing. The MSW replacement at optimum (15 % and 25 %) to the clay enhanced unconfined compressive strength (UCS) and California bearing ratio (CBR) by 1.28 and 3.34 times, respectively. Also, the nanomagnesium (Nano-MgO) was used as an additive at small contents i.e., 0.25, 0.5, 0.75, and 1 % to improve the mechanical properties of MSW-soft clay blends. The optimum MSW replacement ratios with 1 % Nano-MgO significantly improves UCS and CBR of the soft clay when compared to clay stabilized with 1 % Nano-MgO. The UCS and CBR improvement mechanism was investigated via microstructural analysis of the MSW-soft clay stabilized with Nano-MgO. The improved structure of stabilized specimens was found to be due to flocculation, cation exchange, and cementation bond formation with brucite mineral. However, the X-ray diffraction tets results indicated the presence of the Palygorskite mineral in the specimen containing very high MSW replacement ratio, which retarded the Nano-MgO stabilization process. At optimum MSW replacement ratio (15 % and 25 %), Nano-MgO could effectively improve mechanical properties of soft clay for sustainable road construction.</p></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":null,"pages":null},"PeriodicalIF":5.3,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140816953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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