Bulletin of Engineering Geology and the Environment最新文献_第4页

Investigation into dynamic failure characteristics and mechanism of sandstones under effects of high temperature treatments 高温作用下砂岩动态破坏特征及机理研究

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-11 DOI: 10.1007/s10064-025-04491-w

Saisai Wu, Pengbo Cui, Yanguang Yang, Jianhang Chen, Qinghua Gu, Jinnping Guo, Yao Yao

{"title":"Investigation into dynamic failure characteristics and mechanism of sandstones under effects of high temperature treatments","authors":"Saisai Wu, Pengbo Cui, Yanguang Yang, Jianhang Chen, Qinghua Gu, Jinnping Guo, Yao Yao","doi":"10.1007/s10064-025-04491-w","DOIUrl":"10.1007/s10064-025-04491-w","url":null,"abstract":"<div><p>The geological conditions in deep underground conditions are in state of high temperature, high geo-stress and high-water pressure which brings serious challenges to safety of exploitation and utilization of underground resources. The high temperature of deep rock strata leads to a certain degree of internal damage, which causes nonlinear deformation or zoning failure characteristics. Therefore, understanding the dynamic mechanical properties and failure characteristics of rocks under high temperature conditions is quite important for the safety of deep resource exploitations. In this study, the dynamic mechanical parameters of sandstone after high-temperature treatment were obtained through Split Hopkinson Pressure Bar loading methods with temperature as variables. The dynamic damage law and damage degree of sandstone under different impact loads were analyzed. The fracture morphologies of specimens under different impact loads and temperatures were observed by scanning electron microscope. The micro characteristics, failure evolutions as well as dynamic damage mechanisms were analysed and discussed. It was concluded thermal stress leaded to uncoordinated thermal expansion of various mineral particles and induce initiation of microcracks between particles, resulted in decrease of dynamic mechanical properties of specimens. The 600 ℃ was suggested to be the inflection point, at which both the mechanical properties and fractographic features change significantly. The study and obtained results provided theoretical basis for deep mineral exploitation, especially in areas with high temperatures.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256810","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

Susceptibility assessment and driving factor analysis of geological hazards in complex landform areas: insights from sichuan, China 复杂地貌地区地质灾害易感性评价与驱动因素分析——来自四川的启示

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04490-x

Mingyang Li, Yibin Ao, Panyu Peng, Jianjun Zhao

{"title":"Susceptibility assessment and driving factor analysis of geological hazards in complex landform areas: insights from sichuan, China","authors":"Mingyang Li, Yibin Ao, Panyu Peng, Jianjun Zhao","doi":"10.1007/s10064-025-04490-x","DOIUrl":"10.1007/s10064-025-04490-x","url":null,"abstract":"<div>\u0000 \u0000 <p>Geological hazards pose a significant threat to the safety of residents and the socio-economic development of mountainous regions. A scientifically sound susceptibility assessment is crucial for disaster prevention and mitigation. Taking Sichuan Province as a case study, this research constructs a 15 m × 15 m grid scale and employs the information value model to assess geological hazard susceptibility, while integrating the geodetector method to quantify key driving factors and their interactions. The results indicate that high-susceptibility areas account for 22.73% of the province’s total area but contain 65.15% of the identified geological hazard points, demonstrating the model’s high spatial resolution and predictive accuracy. Elevation, slope, land use type, and road networks are the primary influencing factors, with interactions between elevation and slope, as well as land use type and precipitation, further amplifying geological hazard susceptibility. Moreover, areas within 0–300 m from roads exhibit significantly higher geological hazard susceptibility than other regions, highlighting engineering disturbances as a key triggering factor. The findings provide a scientific basis for geological hazard prevention and control in Sichuan Province and other mountainous areas. It is recommended to strengthen monitoring and early warning systems in high-susceptibility zones, optimize infrastructure planning, and implement ecological restoration measures to reduce disaster risks. This study enhances the understanding of the spatial distribution and driving mechanisms of geological hazards, offering theoretical support for disaster prevention and mitigation strategies in mountainous regions.</p>\u0000 </div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256517","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

Coupled hydro-mechanical analysis and stabilization of a failing heap leaching structure 失稳堆浸结构的水-力耦合分析与稳定

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04487-6

Amirreza Pourverdi, Faramarz Doulati Ardejani, Soroush Maghsoudy, Roya Kafi, Reza Taherdangkoo

{"title":"Coupled hydro-mechanical analysis and stabilization of a failing heap leaching structure","authors":"Amirreza Pourverdi, Faramarz Doulati Ardejani, Soroush Maghsoudy, Roya Kafi, Reza Taherdangkoo","doi":"10.1007/s10064-025-04487-6","DOIUrl":"10.1007/s10064-025-04487-6","url":null,"abstract":"<div><p>Heap leaching structures are subject to continuous changes during operation due to the combined influence of hydro-geomechanical and chemical parameters. These changes may impact heap stability and potentially lead to failure. This study investigates the geotechnical instability of a heap leaching structure, emphasizing mechanisms of failure and proposing effective stabilization strategies to enhance operational safety and environmental resilience. Over a four-month monitoring period, the studied heap exhibited a displacement of approximately 2.5 m towards the collection ditch. To identify failure mechanisms and critical zones, a multidisciplinary approach integrating geophysical surveys, borehole drilling, and coupled hydro-mechanical numerical modelling was employed. The simulations replicated observed plastic deformations and delineated critical failure zones. Sensitivity analyses were conducted on cohesion, Young’s modulus, and Poisson’s ratio. Results indicated that reducing cohesion below 29 kPa significantly increases instability risk, while a Young’s modulus of 10 MPa closely matched the 2.3 m displacement observed in field surveys. Laboratory tests and simulations revealed fluid accumulation, elevated pore pressure, and acid-induced shear strength reduction as the primary displacement drivers. A stabilization strategy combining toe reinforcement and load reduction at the crest was designed, simulated, and implemented. This approach effectively reduced plastic deformations and displacement, restoring the heap’s structural stability. The study underscores the importance of integrating field observations, numerical modelling, and parameter sensitivity analysis for diagnosing and mitigating failure in heap leaching structures.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10064-025-04487-6.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256626","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

Electromagnetic and acoustic responses to microstructure characteristics changes and pore water transitions in sandstones 砂岩微观结构特征变化及孔隙水转变的电磁声响应

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04469-8

Shun Ding, Shibin Tang, Hailiang Jia

{"title":"Electromagnetic and acoustic responses to microstructure characteristics changes and pore water transitions in sandstones","authors":"Shun Ding, Shibin Tang, Hailiang Jia","doi":"10.1007/s10064-025-04469-8","DOIUrl":"10.1007/s10064-025-04469-8","url":null,"abstract":"<div><p>Sandstone serves as a vital porous geologic medium in both reservoir and geotechnical engineering; however, its heterogeneous pore structures and mineralogical variations impede quantitative interpretations of the relationship between water saturation and acoustic responses. This study systematically investigated four types of sandstone using integrated electromagnetic, acoustic, and microscopic observing techniques to elucidate the multiphase coupling relationships among saturation, pore water, and P-wave velocity. An innovative modified Gassmann-Brie model (MG-B), incorporating shear modulus attenuation functions, is proposed. The results indicate that P-wave velocity displays a non-monotonic trend, initially decreasing and then increasing with saturation. Sandstones with low porosity and low clay content exhibit an inflection point at 20%, whereas those with high porosity and high clay content exhibit a delayed inflection at around 60%. The incompressibility of pore water enhances P-wave velocity in saturated sandstones, but interfacial effects of clay minerals attenuate this enhancement efficiency. Furthermore, the MG-B model accurately captures the decreasing trend of P-wave velocity and outperforms classical models in predictive accuracy. Thin water films (bound water) primarily contribute to acoustic attenuation at low saturation stage (< 20%), whereas highly connected pore networks (bulk water) facilitate optimal propagation paths at high saturation (> 60%). Importantly, transition among various interfaces, governed by microstructures and pore water types, control the acoustic response mechanism. This work offers novel insights and theoretical guidance for deep resource exploration and geological hazard assessment.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256374","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

Experimental study and generalized predictive model of thermal conductivity of saline soil 盐渍土导热系数的试验研究及广义预测模型

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04509-3

Zhongrui Yan, Zhiliang Liu, Xusheng Wan, Jun Bi, Jun Diao, Yongqiang Cao

{"title":"Experimental study and generalized predictive model of thermal conductivity of saline soil","authors":"Zhongrui Yan, Zhiliang Liu, Xusheng Wan, Jun Bi, Jun Diao, Yongqiang Cao","doi":"10.1007/s10064-025-04509-3","DOIUrl":"10.1007/s10064-025-04509-3","url":null,"abstract":"<div><p>Soil salinization is a critical factor contributing to land degradation, with substantial impacts on the thermal and physical behavior of soils. In order to study the changes in thermal conductivity of saline soils, the thermal conductivity of soil samples with different water contents (16%, 18%, 20%) and salt contents (0%, 0.5%, 1%) at different temperatures was measured, and a generalized predictive model for the thermal conductivity of saline soil was proposed. The results reveal a three-phase response of thermal conductivity to temperature variation: an initial slight decrease, followed by a sharp increase, and finally a decrease towards stability. Thermal conductivity increases with rising water content. When freezing begins, the thermal conductivity increases, but decreases with the formation of microfissures due to frost heave. The relationship between thermal conductivity and salt content is related to water content. In soils with low water contents (16% and 18%), salinity first raises thermal conductivity. Beyond a certain increase, salinity compresses the soil-colloid electric double layer (EDL), induces flocculation, and lowers thermal conductivity. High salt content (> 1%) compress the EDL of soil colloids, promoting flocculation and reducing thermal conductivity. Based on experimental results, a generalized predictive model for the thermal conductivity of saline soil was proposed, which comprehensively considers the effects of water content, salt content, and frost heave. The model validation showed strong consistency (<i>R²</i> range of 0.635–0.921). These findings contribute to a better understanding of heat transport in saline soils and offer practical insights for engineering applications in cold and salinized regions.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256625","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

An experimental investigation of effects of block shape on the mechanical properties of bimrocks 块体形状对双棱岩力学性能影响的实验研究

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04518-2

Kai Li, Shaorui Sun, Jihong Wei, Minyi Zhu, Chunlin Jin, Hu Zheng

{"title":"An experimental investigation of effects of block shape on the mechanical properties of bimrocks","authors":"Kai Li, Shaorui Sun, Jihong Wei, Minyi Zhu, Chunlin Jin, Hu Zheng","doi":"10.1007/s10064-025-04518-2","DOIUrl":"10.1007/s10064-025-04518-2","url":null,"abstract":"<div><p>The shape of rock blocks significantly influences the mechanical properties of bimrocks. To address this gap in research, a new laboratory-based method was proposed to study the effects of block shape, with detailed production techniques for creating rock blocks of various shapes. Uniaxial compression and direct shear test results revealed that block shape markedly affects the stress-strain behavior under uniaxial compression. The elongation index (EI) and flatness index (FI) were found to effectively characterize the influence of block shape on uniaxial compressive strength (UCS), cohesion, and internal friction angle. Interestingly, when the block proportion was 30% versus 60%, the direction of UCS variation on the EI-FI chart reversed, with EI having a greater influence on UCS than FI. Cohesion increased in a counterclockwise direction on the chart, with the minimum cohesion observed in samples with oblate blocks. In contrast, the internal friction angle increased in a clockwise direction, with its minimum value found in samples with blade-shaped blocks. In terms of shear failure, rock cutting along the shear failure surface decreased with decreasing shape factor (SF), with failure more often manifesting as rock bypassing rather than direct cutting.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256627","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

Quantitative assessment of calcareous cementation in moraine soils: insights from an integrated mineralogical and granulometric analysis 冰碛土中钙质胶结的定量评估：来自综合矿物学和颗粒学分析的见解

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-10 DOI: 10.1007/s10064-025-04451-4

Tuo Lu, Yongbo Tie, Shuyi Song, Zhaoyu Li

{"title":"Quantitative assessment of calcareous cementation in moraine soils: insights from an integrated mineralogical and granulometric analysis","authors":"Tuo Lu, Yongbo Tie, Shuyi Song, Zhaoyu Li","doi":"10.1007/s10064-025-04451-4","DOIUrl":"10.1007/s10064-025-04451-4","url":null,"abstract":"<div><p>Calcareous cementation in moraine soils remains insufficiently studied, despite its critical role in influencing mechanical behavior and slope stability. To address this gap, a series of tests were conducted, including field surveys, X-ray diffraction (XRD) tests, Scanning Electron Microscope (SEM) analysis, energy-dispersive X-ray spectroscopy (EDS) tests, grain sieve tests, and dilute hydrochloric acid (HCl) pretreatment tests. XRD results revealed widespread carbonate cementation in the study area, primarily composed of calcite and dolomite (5.09–30.26%). SEM and EDS mapping revealed that calcium carbonate is mainly a rigid cementing agent, bridging grains and contributing to the structural integrity of moraine soils. HCl pretreatment significantly reduced calcareous mineral content and relatively increased the proportion of silicate minerals. It also led to a decrease in gravel content and an increase in fine particles (< 0.25 mm), thereby shifting the cumulative grain size distribution (CGSD) curves. A new Sigmoid-TL CGSD model is proposed to quantify these changes in (CGSD) curves, serving as an indirect measure of calcareous cementation. The model parameters (<i>k</i>, <i>γ</i>, <i>ΔA</i>) are closely correlated with the degree of cementation, providing a robust mathematical representation of its influence on soil structure. Additionally, calcareous cementation is susceptible to degradation from external factors, such as road excavation and acid rain, which may increase the risk of instability and debris flow development.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256781","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

Experimental and numerical analyses of performance evaluation of erosive failure channel at the soil-pile interface in underground aquifer seepage system 地下含水层渗流系统土桩界面侵蚀破坏通道性能评价的试验与数值分析

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-09 DOI: 10.1007/s10064-025-04467-w

Mengyao Zhao, Yingjie Wei, Yuyou Yang, Yong Zeng, Yuxin Jie

{"title":"Experimental and numerical analyses of performance evaluation of erosive failure channel at the soil-pile interface in underground aquifer seepage system","authors":"Mengyao Zhao, Yingjie Wei, Yuyou Yang, Yong Zeng, Yuxin Jie","doi":"10.1007/s10064-025-04467-w","DOIUrl":"10.1007/s10064-025-04467-w","url":null,"abstract":"<div><p>Underground structures have been shown to have a great influence on groundwater seepage in urban aquifers, yet few studies explore the influence of seepage channels at the soil-structure interface on groundwater seepage, particularly in multi-aquifer-aquitard systems. A simplified laboratory test consisting of multi-aquifer-aquitard was conducted to study the potential influence of seepage channels on groundwater seepage. The seepage law and the soil deformation law were investigated as increasing numbers of seepage channels. A numerical model is employed to verify the laboratory test results, in which a multi-aquifer-aquitard model was established, considering the permeability and number of seepage channels at the soil-structure interface. Results indicate that seepage erosion channels impact not only the pore pressure in confined aquifers but also the soil deformations. During upward seepage, aquifer pore water pressure presents phased changes that include steep increase stages and smooth increase stages, and soil layer settlement follows a similar pattern. Increased seepage channels’ number and permeability lead to pore water pressure dissipation in confined aquifers, causing soil compression and surface subsidence. Meanwhile, this effect is also limited by the number of seepage channels and permeability. The impact can be minimal when the permeability and number of channels are very small. This phenomenon is explained by the hydraulic connection effect (HCE) between aquifers due to seepage channels, which may be another potential reason for land subsidence.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256172","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

Interaction of water saturation and freeze-thaw cycles on stress wave attenuation and dispersion in sandstone 含水饱和度和冻融循环对砂岩应力波衰减和频散的相互作用

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-09 DOI: 10.1007/s10064-025-04489-4

Q. H. Yang, L. F. Fan, X. L. Du

{"title":"Interaction of water saturation and freeze-thaw cycles on stress wave attenuation and dispersion in sandstone","authors":"Q. H. Yang, L. F. Fan, X. L. Du","doi":"10.1007/s10064-025-04489-4","DOIUrl":"10.1007/s10064-025-04489-4","url":null,"abstract":"<div><p>Investigating the interaction of water saturation and freeze-thaw (F-T) cycles on stress wave propagation in sandstone is significant for dynamic stability analysis of rock engineering in cold regions. This paper investigates the attenuation and dispersion of stress waves in sandstone with varying saturations during F-T cycles. Sandstone specimens with different initial saturations (0%, 30%, 70%, 80%, 90% and 100%) were subjected to different F-T cycles (0, 5, 10, 15 and 20). Impact tests employing high-speed photography and digital image correlation (HS-DIC) were conducted to study the loss ratio of wave velocity and the attenuation ratio of peak velocity in sandstone with varying saturations during F-T cycles. The effects of the saturation and F-T cycles on the attenuation coefficient of velocity pulse were discussed. The dispersion of velocity pulse with saturation and F-T cycles was revealed through time-frequency spectrograms. The results show that the loss ratio of wave velocity approximately linearly increases as saturation increases. The attenuation ratio of peak velocity and attenuation coefficient exhibit three stages as saturation increases, including rapid increase stage (0% to 30%), slow increase stage (30% to 70%) and rapid increase stage (70% to 100%). The dispersion of velocity pulse in water-saturated sandstone significantly exceeds that in dry sandstone and progressively intensifies with increasing saturation. With increasing F-T cycles, the loss ratio of wave velocity, attenuation ratio of peak velocity and attenuation coefficient increase. More F-T cycles lead to more observable dispersion of velocity pulse.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256550","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

A hybrid approach to quantifying rockfall risk with limited knowledge: a case study in Aosta Valley 用有限的知识量化岩崩风险的混合方法：以奥斯塔山谷为例

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-10-09 DOI: 10.1007/s10064-025-04513-7

Maddalena Marchelli, Valerio De Biagi, Marco Paganone, Davide Bertolo

{"title":"A hybrid approach to quantifying rockfall risk with limited knowledge: a case study in Aosta Valley","authors":"Maddalena Marchelli, Valerio De Biagi, Marco Paganone, Davide Bertolo","doi":"10.1007/s10064-025-04513-7","DOIUrl":"10.1007/s10064-025-04513-7","url":null,"abstract":"<div><p>The quantification of rockfall risk along an infrastructure is a fundamental achievement for an appropriate management of mountain roads and it consists of various steps: from the identification of the sources and sizes of the potential unstable blocks, to the trajectory analysis and, finally, the quantification of the effects on the elements at risk. The degree of knowledge of the slope and the previous rockfall events provides a solid base for the calculation and a precise risk quantification can be obtained for areas of limited extent. On the contrary, when moving to areas of large extent the previous steps cannot be completely achieved and the risk has to be computed by considering the effects of the limited knowledge. To this aim, the paper details a procedure to include the effect of uncertainties into the quantification of the societal risk along a road. The proposed method is a hybrid quantitative approach that integrates elements of likelihood-based, fuzzy, and Bayesian methodologies. It is specifically designed for rockfall risk assessments over extensive areas under conditions of limited data availability. To address epistemic uncertainty, the method primarily involves assigning likelihoods to the frequency of blocks reaching the road, based on historical data, in order to estimate a range of potential risks and their associated probabilities. Aleatory uncertainty inherent in the phenomenon is handled using Monte Carlo probabilistic techniques. To explain the various steps in the analysis, the proposed approach is applied to a study case consisting of a 7.5 km long touristic road subjected to rockfall hazard in Aosta Valley, in the Northwestern Italian Alps, considering different possible traffic scenarios. It is shown that the method is suitable to determine the risk when the knowledge of the area is limited.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 11","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10064-025-04513-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145256173","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