Transportation Geotechnics最新文献_第10页

Model tests study of multi-layer geosynthetic-reinforced pile-supported embankments and evaluation of analytical design models 多层土工合成筋桩支撑路堤模型试验研究及分析设计模型评价

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-20 DOI: 10.1016/j.trgeo.2025.101521

Da Zhang , Guangqing Yang , Ting Li , Peng Xu , Penghui Su

{"title":"Model tests study of multi-layer geosynthetic-reinforced pile-supported embankments and evaluation of analytical design models","authors":"Da Zhang , Guangqing Yang , Ting Li , Peng Xu , Penghui Su","doi":"10.1016/j.trgeo.2025.101521","DOIUrl":"10.1016/j.trgeo.2025.101521","url":null,"abstract":"<div><div>Single and multi-layer geosynthetic-reinforced pile-supported (GRPS) embankments are widely used in practice. Various analytical design models were developed to analyze GRPS embankments. However, engineering experience has shown that the performance of multi-layer GRPS embankments differs from that of single-layer GRPS embankments. The applicability of these analytical design models based on different assumptions has not been fully validated. This paper conducted the physical model test on multi-layer GRPS embankments to clarify their macroscopic mechanical properties. The performance of eight analytical design models under different relative embankment heights was assessed based on the results of the physical model test, using arching efficiency and reinforcement strain as comparison parameters. The results from the physical model test indicated that increasing the number of reinforcement layers in GRPS embankments can more significantly enhance their performance in terms of load transfer and deformation control, as compared to increasing the reinforcement strength of single-layer GRPS embankments. Unlike the membrane behavior exhibited by single-layer reinforcement, the mechanism of multi-layer reinforcement is closer to beam behavior due to the interlock between the reinforcements and the granular fill. Additionally, there is a positive correlation between the prediction accuracy of analytical design models and the relative embankment height, both in predicting the arching efficiency and the reinforcement strain. The accuracy of selected analytical design models in predicting reinforcement strain is found to be weaker in comparison to their predictive capabilities for arching efficiency. Finally, the EBGEO model has good performance, which is grounded in limit equilibrium theory, considers subsoil bearing capacity, and assumes a triangular distribution of the overburden load on the reinforcement.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101521"},"PeriodicalIF":4.9,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474834","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

Visualization of the microscopic mechanism of slurry infiltration and filter cake formation for slurry shield tunneling in saturated sand: A microfluidic chip experiment 饱和砂中浆体盾构隧道浆体入渗及滤饼形成的微观机制可视化：微流控芯片实验

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-20 DOI: 10.1016/j.trgeo.2025.101529

Yanbo Chen , Hao Liu , Yufeng Gao , Xiaowei Ye , Haowen Guo , Yunqi Gao , Yandong Lv

{"title":"Visualization of the microscopic mechanism of slurry infiltration and filter cake formation for slurry shield tunneling in saturated sand: A microfluidic chip experiment","authors":"Yanbo Chen , Hao Liu , Yufeng Gao , Xiaowei Ye , Haowen Guo , Yunqi Gao , Yandong Lv","doi":"10.1016/j.trgeo.2025.101529","DOIUrl":"10.1016/j.trgeo.2025.101529","url":null,"abstract":"<div><div>This study investigated the effects of slurry concentration and pressure on the micro-mechanisms of the slurry infiltration and filter cake formation through microfluidic chip experiments. The formation process of the clogging skeletons and filter cake was revealed. The formation time of clogging skeletons, particle deposition area, average clogging depth and clogging frequency were measured to evaluate the effects of slurry concentration and pressure. The results show that the bentonite particles can clog the pores through the effects of sieving and bridging, thereby forming weakly-permeable clogging skeletons. Subsequent particles deposit on the clogging skeletons and the filter cake begins to form. Higher slurry concentration can accelerate the clogging skeleton formation and enhances its stability. Increasing the concentration from 30 g/l to 60 g/l can increase the frequency of bridging-induced clogging by 2.66 %, leading to a 26 % decrease in the average clogging depth. The shallower clogging depth facilitates a larger external deposition area, significantly reducing the filter cake permeability. Higher slurry pressure can also accelerate the clogging skeleton formation and compacts the external deposited particles. Increasing the initial pressure from 30 kPa to 50 kPa can decrease the frequency of bridging-induced clogging by 2.41 % and increase the average clogging depth by 13 %, which induces the larger internal deposition area and lower filter cake permeability. Considering the effects of the cutter tool penetration depth and rotation frequency on the filter cake, it is recommended the concentration and excess pressure of the slurry used in the engineering applications should not be less than 60 g/l and 50 kPa, respectively.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101529"},"PeriodicalIF":4.9,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474833","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

Effect of installation damage on the behavior of a polypropylene geogrid in an aggressive environment 在恶劣环境下，安装损伤对聚丙烯土工格栅性能的影响

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-19 DOI: 10.1016/j.trgeo.2025.101523

Linda Naga , Mohamed Chikhaoui , Daniele Cazzuffi , Lynda Djerbal

{"title":"Effect of installation damage on the behavior of a polypropylene geogrid in an aggressive environment","authors":"Linda Naga , Mohamed Chikhaoui , Daniele Cazzuffi , Lynda Djerbal","doi":"10.1016/j.trgeo.2025.101523","DOIUrl":"10.1016/j.trgeo.2025.101523","url":null,"abstract":"<div><div>This study explores the effect of installation damage on the behavior of a polypropylene geogrid in an aggressive environment, providing a more realistic assessment of the long-term product behavior under severe conditions. The study’s novelty resides in evaluating the combined effect of installation damage and chemical degradation on the geosynthetic at microscopic and macroscopic scales. To this end, experimental tests were conducted in two phases. In the first phase, a full-scale field installation test and an accelerated aging test— specifically, immersion in sulfuric acid (H<sub>2</sub>SO<sub>4</sub>) at a concentration of 3.1 mol/L at 80 °C—were performed separately on a virgin geogrid. In the second phase, the geogrid previously damaged under the installation test was exposed to the accelerated aging test (combined degradation). The damage sustained by the geogrid after the degradation tests was evaluated by monitoring changes in its mechanical behavior using the tensile test. In addition, differential scanning calorimetry analysis was performed to assess the evolution of the thermal and morphological properties of the polypropylene, while the surface morphology of the geogrid was examined through scanning electron microscopy. The findings demonstrated that chemical attack has a less pronounced effect on the thermal and mechanical behavior of the geogrid previously damaged during the installation process compared to the undamaged geogrid. Specifically, throughout the aging time, the reductions in tensile strength ranged from 17.59 − 26.38 % following combined degradation, compared to 27.19 − 39.75 % after the aging test (single degradation). This investigation underscores the significance of considering the combined effects of degradation agents to enhance the predictability of geosynthetics’ performance in real conditions, thereby ensuring the optimization of infrastructure longevity.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101523"},"PeriodicalIF":4.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474837","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

Site-specific soil water characteristic curve prediction with extremely scarce data using data-driven hierarchical Bayesian model 基于数据驱动层次贝叶斯模型的极稀缺数据下的立地土壤水分特征曲线预测

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-19 DOI: 10.1016/j.trgeo.2025.101527

Menglu Huang, Shin-Ichi Nishimura, Toshifumi Shibata, Linghao Huang, Shiying Zheng

{"title":"Site-specific soil water characteristic curve prediction with extremely scarce data using data-driven hierarchical Bayesian model","authors":"Menglu Huang, Shin-Ichi Nishimura, Toshifumi Shibata, Linghao Huang, Shiying Zheng","doi":"10.1016/j.trgeo.2025.101527","DOIUrl":"10.1016/j.trgeo.2025.101527","url":null,"abstract":"<div><div>The soil-water characteristic curve (SWCC) is fundamental for understanding the hydro-mechanical behavior of unsaturated soils and is widely applied in various fields. However, determining the SWCC through laboratory experiments is time-consuming. As a result, developing efficient prediction models for SWCC is highly valuable for timely decision-making. Existing methods face fundamental limitations: Bayesian approaches rely on predefined empirical models that may fail to fully capture soil–water interactions, while current data-driven machine learning models struggle to handle extremely sparse measurements, incomplete inputs and uncertainty quantification. To address these challenges, this study introduces a data-driven hierarchical Bayesian model (HBM) that integrates an indirect database with extremely sparse site-specific measurements (e.g., fewer than four data points) to reliably predict the SWCC. The HBM operates in two stages where hyperparameters are first estimated from the database to establish a prior model, and then in the inference stage, the prior model is refined through transfer learning to generate a quasi-site-specific posterior model. Through conjugate priors and Gibbs sampling, this approach enables robust SWCC predictions with severely limited data and/or incomplete soil parameters. A comprehensive drying SWCC database with ten essential soil parameters is compiled to train and validate the model through three case studies and leave-one-site-out cross-validation. The results show that the HBM outperforms widely used machine learning models, such as Artificial Neural Networks and Extreme Gradient Boosting, offering a robust solution for SWCC prediction under site-specific data constraints.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101527"},"PeriodicalIF":4.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143478656","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

Multiphysics simulation of frost heave in unsaturated road systems under covering effect 覆盖作用下非饱和道路系统冻胀多物理场模拟

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-19 DOI: 10.1016/j.trgeo.2025.101526

Lin Li , Zepeng Zhang , Weiling Zu , Panpan Li , Weibing Gong

{"title":"Multiphysics simulation of frost heave in unsaturated road systems under covering effect","authors":"Lin Li , Zepeng Zhang , Weiling Zu , Panpan Li , Weibing Gong","doi":"10.1016/j.trgeo.2025.101526","DOIUrl":"10.1016/j.trgeo.2025.101526","url":null,"abstract":"<div><div>The frost heave of road systems under the covering effect involves the coupled transport of water, heat, and gas, along with the dynamic phase transition of water, vapor, and ice, resulting in a complex multi-physical field coupling process. This study presents a multi-physics numerical model to investigate the frost heave process of road systems in cold regions. The model not only considers the pavement covering effect and the multi-layered structure of the road, but also represents the multi-field coupling and multiphase transitions involved in the system. The model validation is conducted by comparing it with experimental results from a well-documented sample experiment, which simplifies the initial and boundary conditions of the road system calculation profile model. Following the multi-field coupling analysis, a parametric analysis is conducted to explore the impact of different roadbed parameters on the covering effect. Special attention is given to the effects of initial moisture content, temperature gradient, cooling rate, and compactness of fillers on the frost heave process. The results show that the migration and phase transition of vapor impact the freezing process of road systems. In the stable phase of the freeze process, the moisture content at the top of the road substantially exceeds the initial level, a phenomenon driven by vapor migration. This multi-physics simulation can potentially serve as a guidance for studying the frost heave mechanism of road systems in cold regions.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101526"},"PeriodicalIF":4.9,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143474835","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

Research on the hydrothermal process and deformation law of the fill-cut transition section subgrade under dynamic load 动荷载作用下填切过渡段路基水热过程及变形规律研究

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-17 DOI: 10.1016/j.trgeo.2025.101524

Jinbang Zhai , Ze Zhang , Delong Zhang , Kun Zhang , Qihao Yu , Yaqi Zhang

引用次数: 0

Frost heave evaluation and prediction of high-speed railway subgrade with coarse filler in high altitude seasonal frozen region, northwest China 西北高海拔季节性冻土区高铁粗填料路基冻胀评价与预测

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-16 DOI: 10.1016/j.trgeo.2025.101520

Xuyang Wu , Zhanju Lin , Fujun Niu , Xingwen Fan , Minghao Liu , Chunqing Li , Yunhu Shang

{"title":"Frost heave evaluation and prediction of high-speed railway subgrade with coarse filler in high altitude seasonal frozen region, northwest China","authors":"Xuyang Wu , Zhanju Lin , Fujun Niu , Xingwen Fan , Minghao Liu , Chunqing Li , Yunhu Shang","doi":"10.1016/j.trgeo.2025.101520","DOIUrl":"10.1016/j.trgeo.2025.101520","url":null,"abstract":"<div><div>The subgrade frost heave problem in high altitude seasonal frozen regions is influenced by extreme climatic conditions, geological factors, subgrade structure, and other external variables. Consequently, controlling the frost heave issue becomes challenging. Based on 8 years field monitoring of Lanzhou-Xinjiang high-speed railway (LXHR), the engineering effectiveness of current subgrade anti-frost heave measures in seasonal frozen regions is comprehensively evaluated, and long-term frost heave of subgrade is predicted. The results demonstrate that Geological conditions exert a significant influence on both subgrade frost heave and frozen depth, and the specific manifestations of frost heave are as follows: intermountain basin > Gobi desert > diluvial plain, while the frozen depths are follows: diluvial plain > Gobi desert ≈ intermountain basin. The frost heave in the middle and upper layer of the subgrade (above 1.5 m) constitutes approximately 80 %–87.5 % of the total frost heave. Considering the cumulative increase in subgrade frost heave over time, the subgrade with coarse particle material replacement, and the “two cloth and one film” technique may not be conducive to long-term stability. It is predicted that after 30 years of operation, the subgrade antifreeze layer may transition from being non-sensitive of frost heave to becoming sensitive.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101520"},"PeriodicalIF":4.9,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143454118","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

Probabilistic demand models and fragility analysis of railway embankments subjected to multi-pulse ground motions 多脉冲地震动作用下铁路路堤的概率需求模型及脆弱性分析

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-15 DOI: 10.1016/j.trgeo.2025.101522

Pan SI , Liang TANG , Shuang TIAN , Yanfang LIU , Xianzhang LING

{"title":"Probabilistic demand models and fragility analysis of railway embankments subjected to multi-pulse ground motions","authors":"Pan SI , Liang TANG , Shuang TIAN , Yanfang LIU , Xianzhang LING","doi":"10.1016/j.trgeo.2025.101522","DOIUrl":"10.1016/j.trgeo.2025.101522","url":null,"abstract":"<div><div>The pulse-like ground motion has a substantial impact on long-period structures such as railway embankments. However, previous studies have focused more on comparative analyses of ground motions with and without pulses, without distinguishing between multi-pulse and single-pulse ground motions. This study aims to quantitatively assess the differences in seismic damage to railway embankments when subjected to various pulse-like ground motions, utilizing the seismic fragility analysis method. We executed an incremental dynamic analysis of railway embankments to construct a probabilistic seismic demand model. The most effective intensity measures (IMs) were chosen from among 20 IMs using criteria of correlation, practicality, efficiency, and proficiency. The conditional probability function facilitated fragility curves by applying the optimal IMs and the engineering demand parameters, which represented the peak permanent settlement on the surface of the railway embankment. The results demonstrated the superiority of structure-specific IMs (e.g., velocity spectrum intensity and housner intensity) over acceleration-, velocity-, displacement-, and time-related IMs. The findings revealed that multi-pulse ground motions significantly impacted the uncertainty of railway embankment damage more than single-pulse ground motions, and ignoring their effects led to an underestimation of their fragility in all states of damage.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"52 ","pages":"Article 101522"},"PeriodicalIF":4.9,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628188","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

Mechanical behaviors of the geocell reinforced graded aggregates under train loading: Based on Indoor tests and DEM 土工格室加筋级配骨料在列车荷载作用下的力学行为：基于室内试验和DEM

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-10 DOI: 10.1016/j.trgeo.2025.101514

Rongwei Fan , Junjie Huang , Yanfei Pei , Zhichao Huang , Haokun Zhang , Zongyu Zhang , Aibo Luo , Qian Su

{"title":"Mechanical behaviors of the geocell reinforced graded aggregates under train loading: Based on Indoor tests and DEM","authors":"Rongwei Fan , Junjie Huang , Yanfei Pei , Zhichao Huang , Haokun Zhang , Zongyu Zhang , Aibo Luo , Qian Su","doi":"10.1016/j.trgeo.2025.101514","DOIUrl":"10.1016/j.trgeo.2025.101514","url":null,"abstract":"<div><div>Usually, a graded-aggregates layer with a given thickness is laid between a rigid subgrade (box subgrade, pile-plank subgrade) and a ballastless track structure. Such a configuration is realized to achieve features such as dynamic buffering, vibration reduction, energy dissipation, and limitation of uneven settlement. Geocells are typically used to reinforce the graded aggregates layer by enhancing its strength and stiffness. A dynamic test device was independently developed to investigate the mechanical behavior of geocell-reinforced graded aggregates under train loading. The test device can simulate the cyclic train loading and lateral confining pressure on graded aggregates. Subsequently, a comparative test of graded aggregates with geocell and without geocell was carried out by using the device. The above said experiments were simulated by a 3D discrete-element approach that considered the actual shape of the graded aggregate particles. The macroscopic mechanical property changes of graded aggregate under train loads were analyzed from microscopic behaviors such as particle contact and particle migration. This study is intended to provide a basis for optimizing and improving the dynamic performance and evaluation of the ballastless track sandwich subgrade with an upper rigid layer, a middle flexible layer, and a lower rigid layer during long-term service.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101514"},"PeriodicalIF":4.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395380","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

Study on the sliding mechanism of slopes along railways in loess regions of China under the coupling effect of extreme rainfall and train vibration 极端降雨与列车振动耦合作用下中国黄土地区铁路沿线边坡滑动机制研究

IF 4.9 2区工程技术

Transportation Geotechnics Pub Date : 2025-02-10 DOI: 10.1016/j.trgeo.2025.101513

Kai Han , Jiading Wang , Peng Xiao , Dengfei Zhang , Bo Cui , Tao Xiao

{"title":"Study on the sliding mechanism of slopes along railways in loess regions of China under the coupling effect of extreme rainfall and train vibration","authors":"Kai Han , Jiading Wang , Peng Xiao , Dengfei Zhang , Bo Cui , Tao Xiao","doi":"10.1016/j.trgeo.2025.101513","DOIUrl":"10.1016/j.trgeo.2025.101513","url":null,"abstract":"<div><div>This study aims to investigate the sliding mechanism of slopes along railways in loess regions under the coupling effect of extreme rainfall and train vibration. Using the Baotou–Xi’an railway as a case study, a physical model of slopes along railways was developed to account for the impacts of dry-wet cycles, extreme rainfall, and train vibration. The experiments revealed that during the dry-wet cycle phase, the pore fractal dimension of the slope soil decreases from 2.95 to 2.81, indicating an increase in macropores, which enhances water transport efficiency in the soil. Following extreme rainfall, the pore water pressure and moisture content data of the soil approach peak levels, suggesting increased soil saturation and weakened stability. Subsequent vibration loading results in highly saturated soil, as evidenced by fluctuations in volumetric moisture content (from 48 % to 50.7 %) and pore water pressure (from 1.6 to 1.8 Kpa). Train vibration contributes to crack formation and expansion, while water infiltration establishes a pore-crack-seepage network. This network, combined with rainfall and train vibrations, destabilizes the soil structure and triggers landslides in loess regions along railways. The continuous application of vibration load further expands the sliding range. Meanwhile, an equation was derived to determine the sliding distance in relation to the number of vibratory loads applied. The sliding mechanism of slopes along railways under the combined influence of rainfall and train vibration has been preliminarily verified through micro, meso, and macroscopic perspectives.</div></div>","PeriodicalId":56013,"journal":{"name":"Transportation Geotechnics","volume":"51 ","pages":"Article 101513"},"PeriodicalIF":4.9,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402637","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