Bulletin of Engineering Geology and the Environment最新文献_第5页

A comprehensive hybrid method for performance evaluation of a modified earth pressure balance shield machine in mixed strata 混合地层中改良土压平衡盾构机性能评估的综合混合方法

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-26 DOI: 10.1007/s10064-024-03965-7

Yong Zeng, Yingjie Wei, Yuyou Yang, Mengyao Zhao

{"title":"A comprehensive hybrid method for performance evaluation of a modified earth pressure balance shield machine in mixed strata","authors":"Yong Zeng, Yingjie Wei, Yuyou Yang, Mengyao Zhao","doi":"10.1007/s10064-024-03965-7","DOIUrl":"10.1007/s10064-024-03965-7","url":null,"abstract":"<div><p>The complex geological conditions and operational performance of reconditioning modified earth pressure balance shield (M-EPBS) machines can critically influence tunnel excavation and construction safety. To address this, the study proposes a comprehensive framework for assessing the overall construction performance of reconditioned shield machines in compound strata. This framework employs fuzzy mathematics theory and analytic hierarchy process (F-AHP) to construct a three-level multi-factor evaluation matrix and establish comprehensive membership function relationships. We then quantify the weight of each factor and the interval membership function, followed by a relative superiority analysis of the interval matrix. A shield tunneling case study is utilized to evaluate the model, focusing on layer conditions, shield design parameters, and shield construction parameters. The study also addresses the challenges encountered during the tunneling process and the corresponding countermeasures. The results reveal that the proposed framework is effective, user-friendly, and adaptable for selecting and evaluating M-EPBS machines in compound strata. This framework provides a novel approach for feasibility assessments, safe operation management, pre-shield design evaluations, and post-shield construction verifications.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518959","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 the spatial changes in engineering properties on municipal solid waste landfill slope stability 工程特性的空间变化对城市固体废物填埋场边坡稳定性的影响

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-26 DOI: 10.1007/s10064-024-03952-y

Rong Yang, Zengguang Xu, Junrui Chai, Cheng Cao, Jianxi Ren, Xiaoke Chang

{"title":"Effect of the spatial changes in engineering properties on municipal solid waste landfill slope stability","authors":"Rong Yang, Zengguang Xu, Junrui Chai, Cheng Cao, Jianxi Ren, Xiaoke Chang","doi":"10.1007/s10064-024-03952-y","DOIUrl":"10.1007/s10064-024-03952-y","url":null,"abstract":"<div><p>Landfill is the main method for disposing of municipal solid waste (MSW). However, landfill instability destruction accidents occur frequently, and the instability is influenced by multiple factors. Due to the complex composition of MSW and its obvious heterogeneous properties, landfill stability is the most significant engineering challenge in landfill operations. This paper has provided a review about status quo of MSW disposal and researched the impact factors of MSW landfill stability through extensive literature research. In view of the landfill process and specific heterogeneity of MSW, a finite element model about spatial changes in engineering properties on MSW body has been proposed. Then the sensibility analysis of the engineering properties on heterogeneity municipal solid waste body stability has been conducted, and the influence curves for the safety factors of the MSW body have been proposed. Finally, suggestions have been proposed that can provide technical support and can serve as a reference for the design, operation, and maintenance of MSW landfills.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518598","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

Exploring failure evolution of anti-dip slate slope using centrifuge test and discrete element method 利用离心机试验和离散元法探索抗倾覆板岩斜坡的破坏演变过程

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03972-8

Meng-Chia Weng, Chia-Hsun Peng, Wen-Yi Hung, Yu-Jiun Guo

{"title":"Exploring failure evolution of anti-dip slate slope using centrifuge test and discrete element method","authors":"Meng-Chia Weng, Chia-Hsun Peng, Wen-Yi Hung, Yu-Jiun Guo","doi":"10.1007/s10064-024-03972-8","DOIUrl":"10.1007/s10064-024-03972-8","url":null,"abstract":"<div><p>Toppling failure commonly occurs in anti-dip slate slopes due to foliation splitting and gravitational deformation. The study uses centrifuge tests and the discrete element method (DEM) to investigate the influence of foliation and existing fractures on the toppling failure evolution of anti-dip slopes. Six centrifuge tests with slate blocks obtained from an actual slope were carried out. Then, a proposed foliation model was implemented in the DEM software 3DEC to simulate the failure evolution of anti-dip slopes. The 3DEC analysis was validated by the actual failure pattern of slopes in centrifuge tests. The results indicate that the toppling failure of the anti-dip slope was initiated by existing fractures rather than the original cohesive foliation. Though the slate foliation is regarded as a weak plane in the rock mass, it retains a higher strength than the existing fracture, so the toppling failure is difficult to initiate from the cohesive foliation. The closer the fracture is to the free surface, the more pronounced the damage. In addition, the simulation indicates that the existing fracture's position also affects the anti-dip slope's failure degree. The fractures on the top propagate more easily than those on the bottom.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10064-024-03972-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519121","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

Rockfall analysis considering coefficients of restitution based on three-dimensional sphere discontinuous deformation analysis 基于三维球体不连续变形分析法的落石分析（考虑恢复系数

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03973-7

Lianheng Zhao, Changrui Jin, Dongliang Huang, Guoshun Lv, Le Liu, Quan Dai, Ganghai Huang

{"title":"Rockfall analysis considering coefficients of restitution based on three-dimensional sphere discontinuous deformation analysis","authors":"Lianheng Zhao, Changrui Jin, Dongliang Huang, Guoshun Lv, Le Liu, Quan Dai, Ganghai Huang","doi":"10.1007/s10064-024-03973-7","DOIUrl":"10.1007/s10064-024-03973-7","url":null,"abstract":"<div><p>Collisions are the most complex part of rockfall movement processes and significantly affect the scope and movement distance of rockfall hazards. An accurate analysis of collisions is helpful for obtaining reliable rockfall trajectories. In this study, the energy loss during collision is characterized by normal and tangential coefficients of restitution (COR), and the rockfall collision and motion processes are simulated via numerical methods. Contact theory and a method for calculating COR are considered for three-dimensional sphere discontinuous deformation analysis (SDDA) to simulate collisions during rockfall movement. A detailed calibration method is proposed to obtain the critical parameter “contact yield stress” of the normal COR (NCOR). Through parameter sensitivity analysis, the inherent velocity loss in SDDA is investigated, and correction strategies are proposed. Additionally, the effects of the material, incident angle, and impact velocity on COR are studied, and the fundamental reasons for the change in COR caused by various factors are discussed. Finally, based on the topography of a high and steep dangerous rock slope in the Wulong area of Chongqing, China, rockfall motion in complex terrain was simulated, and the simulation results were compared with the traces of rockfall left behind and stopping area in the field. The results show that the SDDA considering COR can simulate the collision process of rockfall movement, which has important practical value for rockfall risk assessment.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10064-024-03973-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519065","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

Impact of sampling for landslide susceptibility assessment using interpretable machine learning models 使用可解释的机器学习模型对滑坡易发性评估进行取样的影响

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03980-8

Bin Wu, Zhenming Shi, Hongchao Zheng, Ming Peng, Shaoqiang Meng

{"title":"Impact of sampling for landslide susceptibility assessment using interpretable machine learning models","authors":"Bin Wu, Zhenming Shi, Hongchao Zheng, Ming Peng, Shaoqiang Meng","doi":"10.1007/s10064-024-03980-8","DOIUrl":"10.1007/s10064-024-03980-8","url":null,"abstract":"<div><p>Landslide susceptibility assessment has made significant strides in meeting the urgent requirements for disaster prevention and mitigation. However, the inherent imbalance in landslide distributions poses challenges and thus various sampling strategies emerge. Yet, these strategies alter the original dataset distribution, necessitating a deeper understanding of their impact on susceptibility mapping. This study integrates multi-source information, including morphological, geological, hydrological, and land-use data in the northwest of Oregon State, to train four models—Decision Trees, Random Forest, Adaboost, and Gradient Tree Boosting —using both balanced and imbalanced training sets. Results reveal that models trained on imbalanced datasets generally exhibit superior classification performance. Models using balanced datasets predict more positives (landslides) at higher susceptibility levels, while those applied imbalanced datasets classified more negatives at lower levels. By employing the Shapley Additive Explanations method, the consistency in model decision-making was established and identified the top five most influential factors: distance to roads, slope roughness, geological age, roughness, and elevation. Furthermore, the consequences of FN (False Negatives) and FP (False Positives) were discussed, concluding that FN may lead to loss of life, and FP may result from prediction inaccuracies, dataset incompleteness, and forthcoming landslides, hence allowing for a certain amount. It suggests that models with balanced datasets are preferable for minimizing the quantity of FN and effectively capturing landslides at high and very high susceptibility areas. The findings provide valuable insights into the impact of positives and negatives ratios on landslide susceptibility and offer support for optimizing dataset sampling.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10064-024-03980-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518900","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

Minero-petrographic, geochemical, and physical alteration of himachal gneiss an impact on uniaxial strength due to weathering 喜玛拉雅片麻岩的矿物岩石学、地球化学和物理蚀变--风化作用对单轴强度的影响

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03955-9

Honey Kaushal, Aditya Singh, Narendra Kumar Samadhiya

{"title":"Minero-petrographic, geochemical, and physical alteration of himachal gneiss an impact on uniaxial strength due to weathering","authors":"Honey Kaushal, Aditya Singh, Narendra Kumar Samadhiya","doi":"10.1007/s10064-024-03955-9","DOIUrl":"10.1007/s10064-024-03955-9","url":null,"abstract":"<div><p>The present study provides multidisciplinary research on the alteration of petrographic, mineralogical, geochemical characteristics, and physical properties of Himachal gneiss due to weathering. Three different weathering grades fresh, slightly, and moderately weathered gneiss are collected from Kullu, Himachal Pradesh, India. The petrographic and mineralogical analyses are done by thin section and XRD analyses. The microstructural and geochemical studies of gneiss samples were performed using scanning electron microscopy (SEM) and X-ray fluorescence (XRF) respectively. The petrographic images revealed a large amount of alteration in the plagioclase due to weathering. The pervasive sericitization of plagioclase is observed in moderately weathered gneiss samples. The quartz grains are intact and only minor fracturing in some quartz grains is observed in moderately weathered gneiss samples. The SEM images indicate that the inter-granular and intra-granular micro-cracks increase with the weathering grades. The XRF results are used to obtain the different chemical weathering indices and their suitability for Himachal gneiss. Among twenty-five chemical weathering indices, the CIA, CIW, alkaline ratio, PIA, LOI, and WI show a suitable trend and can be used for assessing the weathering of Himachal gneiss. In addition, alterations in the physical properties of gneiss are observed due to weathering. The bulk, dry, saturated densities and slake durability index decrease while the porosity increases with the progressive weathering of gneiss. The progressive weathering significantly reduces the gneiss's uniaxial compressive strength (UCS). For all three weathering grades of gneiss, the maximum and minimum values of UCS were observed at 90˚ and 30˚ foliations, respectively.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519013","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

Triaxial testing and model study on lime modified dispersive soil considering age effects 考虑龄期效应的石灰改良分散土三轴试验和模型研究

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03942-0

Jianxin He, Pengzhan Gao, Haihua Yang, Weiheng Tian, Jinhua Ding

{"title":"Triaxial testing and model study on lime modified dispersive soil considering age effects","authors":"Jianxin He, Pengzhan Gao, Haihua Yang, Weiheng Tian, Jinhua Ding","doi":"10.1007/s10064-024-03942-0","DOIUrl":"10.1007/s10064-024-03942-0","url":null,"abstract":"<div><p>This study investigates the influence of age on the mechanical properties of lime-modified dispersed soils through consolidation undrained triaxial tests conducted at various age (t) and lime content (a). Empirical equations for Duncan-Chang model parameters K, n, c, and φ incorporating the age factor were established based on experimental results, focusing on lime modification at 2% content. The stress-strain curves of dispersed soils exhibit strain-hardening characteristics, with stress levels increasing notably with age, displaying significant variation between short and long durations. Conversely, the stress-strain curve for lime-modified dispersed soil at 2% content shows strain-softening behavior. Age exerts a substantial influence on model parameters K, n, c, and φ of the Duncan-Chang model, with a minor impact on Rf. The modified model demonstrates a strong fit to stress-strain curves of lime-modified dispersed soil before reaching failure, validated against experimental data at age of 14 days and 90 days. Importantly, the modified model accurately predicts stress-strain relationships for modified soils over extended age beyond 28 days, providing meaningful insights for the long-term stability assessment of soil-modified structures.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142519122","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

Insights into anisotropic compression characteristics of unsaturated compacted GMZ bentonite 对非饱和压实GMZ膨润土各向异性压缩特性的见解

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-25 DOI: 10.1007/s10064-024-03970-w

Yu Lu, Wei-min Ye, Qiong Wang, Yong-gui Chen

{"title":"Insights into anisotropic compression characteristics of unsaturated compacted GMZ bentonite","authors":"Yu Lu, Wei-min Ye, Qiong Wang, Yong-gui Chen","doi":"10.1007/s10064-024-03970-w","DOIUrl":"10.1007/s10064-024-03970-w","url":null,"abstract":"<div><p>Compacted bentonite has been commonly recognized as an effective buffer/backfill material in deep geological repositories for high-level nuclear waste disposal. Anisotropic microstructure can be inevitably generated during the bentonite block compaction. More importantly, this anisotropy can be intensified by the stress-induced anisotropy produced during the subsequent engineering service while the bentonite block is being submitted to external stresses. In this work, using a modified suction-controlled high-pressure consolidation setup, one-dimensional compression tests were conducted on the compacted GMZ bentonite specimens along the directions both parallel (V-type specimen) and perpendicular (H-type specimen) to the compaction surface (bedding) formed during the specimen preparation processes. Quantitative analyses on the anisotropic compression characteristic, as well as insights into the formation and evolution mechanisms of anisotropic degree, were performed. The vertical (bedding) type (V-type) specimens exhibited more significant compression deformation, lower yield stress, and higher swelling index when compared to the horizontal type (H-type) specimens. The compaction-induced anisotropy could be intensified with increasing dry density and could be either strengthened or weakened during the subsequent compression processes, in which, the anisotropy of the horizontal type specimen kept continuously increasing, while that of the vertical type specimen decreased first and then gradually turned to increase. Development and evolution of stress-induced anisotropy closely depended on the stress level applied and the stress path followed. Relationships among the pre-consolidation pressures (major/minor principal stresses) during the specimen compaction and the subsequent one-dimensional compression played a vital role in the generation and evolution of the stress-induced anisotropy of the specimen.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518897","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

Combined utilization of slag, fly ash, and polyacrylamide for sustainable saline soil improvement: a win-win strategy 综合利用炉渣、粉煤灰和聚丙烯酰胺进行可持续盐碱地改良：双赢战略

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-24 DOI: 10.1007/s10064-024-03938-w

Yang Zhao, Zheng Lu, Rong Zhang, Jie Liu, Changtao Hu, Abdollah Tabaroei, Jian Li, Tingzhou Yan, Hailin Yao

{"title":"Combined utilization of slag, fly ash, and polyacrylamide for sustainable saline soil improvement: a win-win strategy","authors":"Yang Zhao, Zheng Lu, Rong Zhang, Jie Liu, Changtao Hu, Abdollah Tabaroei, Jian Li, Tingzhou Yan, Hailin Yao","doi":"10.1007/s10064-024-03938-w","DOIUrl":"10.1007/s10064-024-03938-w","url":null,"abstract":"<div><p>Saline soils are always treated as waste materials due to the salt in the soil deteriorating the soil structure, decreasing the strength, and causing salt expansion. Especially for large-scale urbanization in developing countries, how to use the waste saline soils to realize resource utilization, decrease construction costs, and further reduce carbon emissions are the biggest problems for the researchers. Hence, in this research context, a novel solid waste additive composed of slag, fly ash, and polyacrylamide, referred to as SFP, was adopted to investigate its impact on saline soil’s improvement and reinforced mechanisms based on a highway project in Urumqi, Xinjiang, China. The investigation involved laboratory experiments and Scanning Electron Microscope (SEM) analysis, specific indicators presenting the Atterberg limits, salt expansion, Unconfined Compressive Strength (UCS), resistance to freeze-thaw (FT) cycles, and water stability. The results demonstrate that the SFP additive can increase the plasticity index of the stabilized soil. From the perspective of salt expansion and UCS, the optimal SFP content is determined to be 15%, resulting in a salt expansion rate of less than 1% and approximately a threefold increase in strength compared to unstabilized saline soil. Also, the SFP additive improved the soil’s resistance to freeze-thaw cycles and enhanced water stability. SEM analysis revealed that inorganic compounds underwent chemical reactions with ions in the soil, generating a substantial amount of hydration products. When combined with the polyacrylamide, a synergistic effect substantially improved the geotechnical properties of saline soil.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518580","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

Small-scale, large impact: utilizing machine learning to assess susceptibility to urban geological disasters—a case study of urban road collapses in Hangzhou 小规模、大影响：利用机器学习评估城市地质灾害易发性--杭州城市道路塌陷案例研究

IF 3.7 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2024-10-23 DOI: 10.1007/s10064-024-03931-3

Bofan Yu, Huaixue Xing, Jiaxing Yan, Yunan Li

{"title":"Small-scale, large impact: utilizing machine learning to assess susceptibility to urban geological disasters—a case study of urban road collapses in Hangzhou","authors":"Bofan Yu, Huaixue Xing, Jiaxing Yan, Yunan Li","doi":"10.1007/s10064-024-03931-3","DOIUrl":"10.1007/s10064-024-03931-3","url":null,"abstract":"<div><p>Compared with large-scale geological disasters such as landslides and earthquakes, small-scale urban geological disasters such as collapses and ground fissures are often overlooked. However, the socioeconomic impacts of these small-scale events can often exceed those of larger disasters in major cities. Although the use of machine learning for susceptibility assessment is a well-established aspect of large-scale geological disaster prevention, insufficient disaster samples and resultant dataset imbalances have hindered its application to small-scale urban geological disasters. To address this issue, we propose a comprehensive process that involves defining disaster risk areas to expand disaster sample points, optimizing the extraction method for training and test sets to balance the dataset, and selecting models with high generalization capabilities to enhance prediction accuracy. By focusing on all urban road collapse incidents from 2015 to 2023 in Binjiang District, Hangzhou’s most economically developed areas, we demonstrated the reliability of this process. Furthermore, to support urban policymakers, we employed the SHAP model to demystify the predictive process and assess the impact of factors, providing reliable analytical results. Our approach provides a replicable and comprehensive solution for susceptibility assessments of cities impacted by small-scale geological disasters using machine learning and subsequent analyses.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"83 11","pages":""},"PeriodicalIF":3.7,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142518532","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