Engineering Geology最新文献_第3页

Seismic liquefaction assessment in transitional fluvial–lacustrine depositional settings: A case study from the western shoreline of Lake Iznik, Türkiye 过渡性河流-湖泊沉积环境下的地震液化评价：以土耳其伊兹尼克湖西岸线为例

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-27 DOI: 10.1016/j.enggeo.2025.108379

Sadettin Topçu

{"title":"Seismic liquefaction assessment in transitional fluvial–lacustrine depositional settings: A case study from the western shoreline of Lake Iznik, Türkiye","authors":"Sadettin Topçu","doi":"10.1016/j.enggeo.2025.108379","DOIUrl":"10.1016/j.enggeo.2025.108379","url":null,"abstract":"<div><div>Seismic liquefaction assessment in transitional depositional environments requires careful consideration of complex lithology and sedimentological variability. This study presents a detailed liquefaction potential evaluation of Holocene fluvial–lacustrine deposits along the western shoreline of Lake Iznik, Türkiye. The area features intricate interbedding of fluvial sands, gravels with fluvial/lacustrine silts and clays, shaped by dynamic sedimentary processes including fluctuating water levels and variable sediment supply. Nine boreholes were investigated through Standard Penetration Tests (SPT) and laboratory analyses to characterize the heterogeneous subsurface conditions. Liquefaction susceptibility was assessed using Youd and Perkins's geological and geomorphological criteria, Iwasaki's gradation curve criteria, multiple SPT-based methods, complemented by Bray and Sancio's criteria for fine-grained soils and Ishihara's models for surface manifestations. Findings reveal that loosely packed sandy soils are highly vulnerable to liquefaction, while lacustrine fine-grained layers exhibit moderate susceptibility influenced by plasticity and moisture content. Importantly, non-liquefiable deposits are present near the surface, acting as protective caps that influence the development and severity of surface manifestations. Liquefaction behavior in transitional fluvial–lacustrine settings is shown to be highly site-specific, controlled by depositional heterogeneity rather than random variability. These findings provide novel insight and practical guidance for reliable hazard assessment in complex sedimentary environments.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108379"},"PeriodicalIF":8.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Erosion and clogging mitigation in sandstone reservoirs through microbial carbonate precipitation: A microfluidic study 通过微生物碳酸盐沉淀缓解砂岩储层的侵蚀和堵塞：微流体研究

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-27 DOI: 10.1016/j.enggeo.2025.108375

Yun Lu , Yuze Wang

{"title":"Erosion and clogging mitigation in sandstone reservoirs through microbial carbonate precipitation: A microfluidic study","authors":"Yun Lu , Yuze Wang","doi":"10.1016/j.enggeo.2025.108375","DOIUrl":"10.1016/j.enggeo.2025.108375","url":null,"abstract":"<div><div>Erosion and clogging near CO<sub>2</sub> injection wells present significant challenges to reservoir stability and injectivity, especially in weakly consolidated sandstones containing carbonate minerals. In this study, microfluidic chips were used to construct synthetic porous media mimicking weakly cemented sandstone, followed by Microbially Induced Calcium Carbonate Precipitation (MICP) treatment to reinforce pore structure and improve resistance to acid-induced degradation. Systematic experiments were conducted under varying pH, flow rates, and treatment cycles to simulate CO<sub>2</sub>-induced acidic flow conditions. Results demonstrate that MICP significantly enhances erosion resistance by forming multiscale CaCO<sub>3</sub> networks through particle bridging and interfacial cementation. A size-dependent buffering effect is observed during crystal dissolution, where smaller crystals dissolve first, locally increasing pH and delaying damage to larger structures. MICP also mitigates clogging by forming permeable crystal bridges at pore throats, restricting coarse particle transport while maintaining flow paths. The extent of erosion and clogging is strongly correlated with the initial cementation volume (<span><math><msub><mi>V</mi><msub><mi>CaCO</mi><mn>3</mn></msub></msub><mo>/</mo><msub><mi>V</mi><mi>V</mi></msub></math></span>), showing a dual-threshold response: systems with ≥4 % CaCO<sub>3</sub> remain stable, while those with <2 % rapidly destabilize. MICP treatment raises the critical flow threshold and reduces sensitivity to acid flow, demonstrating its potential to improve injectivity and long-term storage reliability in CO<sub>2</sub> reservoirs.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"358 ","pages":"Article 108375"},"PeriodicalIF":8.4,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characterizing the intrinsic complexity of natural fracture networks: A novel fractal-based approach 表征天然裂缝网络的内在复杂性：一种新的基于分形的方法

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-25 DOI: 10.1016/j.enggeo.2025.108376

Jingyan Zhao , Yi Jin , Junling Zheng , Mengyu Zhao , Jiabin Dong , Huibo Song

{"title":"Characterizing the intrinsic complexity of natural fracture networks: A novel fractal-based approach","authors":"Jingyan Zhao , Yi Jin , Junling Zheng , Mengyu Zhao , Jiabin Dong , Huibo Song","doi":"10.1016/j.enggeo.2025.108376","DOIUrl":"10.1016/j.enggeo.2025.108376","url":null,"abstract":"<div><div>Quantitative characterization of the intrinsic complexity of fracture networks in rock mass, which has attracted broad attention for decades, remains challenges because of the featured characteristics of fractal and random distribution. In this study, in view of the fact of the natural porous media being a dual-complexity system, the complex types of fracture networks and their assembly mechanism were firstly identified and elaborated as per fractal topography theory. On this basis, an open mathematical framework with the fractal topography parameters was established to generalize the characterization of complex types of fracture networks and the corresponding modeling algorithm for arbitrary fracture networks was accordingly developed. To realize practical application, an inversion algorithm was then proposed for extracting fractal parameters by defining their relationship with the measurable geometric attributes of fracture networks. Subsequently, CT scanning experiments were conducted, and multiple slices of the sample were analyzed to validate the effectiveness and reliability of the proposed algorithm. Finally, a comparative analysis with existing methods was performed, and the significant advantage of our characterization approach was demonstrated by the good agreement between the generated length sequences and those measured ones in physical experiments, wherein the mean absolute error is in the range of 0.21–0.71 mm across six networks. This study provides an effective framework for analyzing the influence of fracture networks on the mechanical and hydraulic behavior of rock mass, laying a foundation for more accurate assessments and predictive insights.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"358 ","pages":"Article 108376"},"PeriodicalIF":8.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145219324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of plastic fines on the critical state mobility of calcareous sands 塑性细粒对钙质砂临界状态迁移率的影响

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-25 DOI: 10.1016/j.enggeo.2025.108381

Xiao Xie , Yumin Chen , Saeed Sarajpoor , Yutang Chen , Yi Han

{"title":"Influence of plastic fines on the critical state mobility of calcareous sands","authors":"Xiao Xie , Yumin Chen , Saeed Sarajpoor , Yutang Chen , Yi Han","doi":"10.1016/j.enggeo.2025.108381","DOIUrl":"10.1016/j.enggeo.2025.108381","url":null,"abstract":"<div><div>Calcareous ooze, often classified as a type of clay, is ubiquitously found in marine environments, and its incorporation within sandy substrates can markedly influence the engineering properties of sands. Despite its significance, the impact of calcareous ooze on the behavior of calcareous sand remains underexplored. This study conducts a series of undrained triaxial tests to evaluate the shear behavior and fluid characteristics of mixtures of calcareous sand and ooze under both monotonic and cyclic loading. The experimental findings reveal that the presence of plastic fines substantially alters the shear behavior of the soil. Specifically, both shear strength and liquefaction resistance of the mixtures demonstrate a decline with increasing fines content under monotonic and cyclic loading conditions, respectively. Additionally, the angularity and roughness of ooze particles mechanically interlock adjacent sands, thereby increasing the critical friction angle from <span><math><msup><mn>37.70</mn><mo>°</mo></msup></math></span> to <span><math><msup><mn>39.26</mn><mo>°</mo></msup></math></span> as fines content rises from 0 to 30 %. Flow failure was observed during cyclic testing, with strain accumulation occurring rapidly during the final cycles. Furthermore, a novel parameter normalized viscosity ratio is introduced for quantifying the soil viscosity, exhibiting a linear relationship with the normalized effective stress ratio. The present study suggests that both of viscosity under monotonic or cyclic loading should be classified as critical state viscosity and fluid characteristics of the soil at critical state with non-zero effective stress should be considered.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"358 ","pages":"Article 108381"},"PeriodicalIF":8.4,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145261829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the GPGPU-accelerated thermomechanical coupling finite-difference method / hybrid finite-discrete element method (FDM/FDEM) model for geomaterials 岩土材料的gpgpu加速热力耦合有限差分/混合有限离散元（FDM/FDEM）模型

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-24 DOI: 10.1016/j.enggeo.2025.108383

Zihan Liu , Louis Ngai Yuen Wong

{"title":"On the GPGPU-accelerated thermomechanical coupling finite-difference method / hybrid finite-discrete element method (FDM/FDEM) model for geomaterials","authors":"Zihan Liu , Louis Ngai Yuen Wong","doi":"10.1016/j.enggeo.2025.108383","DOIUrl":"10.1016/j.enggeo.2025.108383","url":null,"abstract":"<div><div>Thermomechanical (TM) coupling analysis is one of the hot research topics in computational geomechanics. To address the large computational costs associated with high-accuracy simulations, General-Purpose computing on Graphics Processing Units (GPGPU) acceleration is a cutting-edge technique that enhances numerical efficiency. This study presents a transformative approach by presenting the CUDA-based TM coupling model that integrates the finite-difference method (FDM) with a hybrid finite-discrete element method (FDEM). FDM grids are used for thermal field calculations, while FDEM meshes are employed to compute mechanical responses. Bi-linear interpolation is applied to transfer the FDM results to the FDEM model. The versatile model supports both rectangular and circular FDM boundaries. To address the challenge of contact heat transfer problems, we introduce a heat pipe scheme for the FDM-FDEM model. Several CUDA kernel functions have been developed to calculate node forces, perform contact detection, compute contact forces, and evaluate the thermal field. A series of numerical cases involving rock plates, rock heaps, wellbore stability, ceramics, and radioactive waste repositories were conducted to validate the model's reliability. Comparisons of computational efficiency demonstrate that our model can achieve an overall speed-up ratio in the hundreds, significantly outpacing traditional models implemented in C language. These results highlight the potential of our approach to advance TM coupling algorithms and FDEM modeling.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"358 ","pages":"Article 108383"},"PeriodicalIF":8.4,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145189920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of extremely rapid cyclic reservoir water level fluctuations on bank slope stability: Insights from model testing and numerical simulation of a pumped storage power station slope 水库水位快速循环波动对岸坡稳定性的影响：抽水蓄能电站边坡模型试验与数值模拟的启示

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-24 DOI: 10.1016/j.enggeo.2025.108380

Song Wei , Feng Ji , Jun-ling Ding , Meng Guan , Yu-peng Lu

{"title":"Influence of extremely rapid cyclic reservoir water level fluctuations on bank slope stability: Insights from model testing and numerical simulation of a pumped storage power station slope","authors":"Song Wei , Feng Ji , Jun-ling Ding , Meng Guan , Yu-peng Lu","doi":"10.1016/j.enggeo.2025.108380","DOIUrl":"10.1016/j.enggeo.2025.108380","url":null,"abstract":"<div><div>The upper reservoirs of pumped storage power stations are subject to extremely rapid water level fluctuations, with daily variations of several tens of meters. These abrupt changes can trigger substantial slope deformations and failures, thereby threatening the structural integrity and operational safety of the facility. This study focuses on a representative slope within the upper reservoir of a pumped storage power station in eastern China. Physical model testing and numerical simulation are integrated to examine seepage behavior and deformation characteristics under extremely rapid cyclic water level fluctuations. Results show that water content, pore water pressure, and soil pressure respond synchronously with water level changes, while matric suction exhibits a delayed response. The groundwater line within the slope displays pronounced hysteresis relative to reservoir levels, and horizontal displacement initiates at the slope toe and propagates upward and inward. Slope stability deteriorates nonlinearly with increasing fluctuation cycles, and faster drawdown rates further exacerbate slope instability. The deformation and failure process of silty clay slopes under these conditions can be categorized into four progressive stages: (1) seepage-induced internal erosion, (2) accumulated shear creep, (3) accelerated damage coalescence, and (4) overall failure. These findings provide valuable theoretical guidance for the monitoring, prevention, and mitigation of geohazards in silty clay slopes under highly dynamic hydrological conditions.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108380"},"PeriodicalIF":8.4,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NMR study on the distribution pattern of pore water in the process of freeze-thaw permeability enhancement of coal 煤冻融增渗过程中孔隙水分布规律的核磁共振研究

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-24 DOI: 10.1016/j.enggeo.2025.108388

Lei Qin , Pengfei Liu , Haifei Lin , Hui Wang , Ruizhe Wang , Miao Mu , Niandong Chen , Chengang Sun

{"title":"NMR study on the distribution pattern of pore water in the process of freeze-thaw permeability enhancement of coal","authors":"Lei Qin , Pengfei Liu , Haifei Lin , Hui Wang , Ruizhe Wang , Miao Mu , Niandong Chen , Chengang Sun","doi":"10.1016/j.enggeo.2025.108388","DOIUrl":"10.1016/j.enggeo.2025.108388","url":null,"abstract":"<div><div>Freezing and thawing damage of slope rock is one of the main hazards of surface coal mines in cold regions, which can easily cause rock damage and slope instability and landslides. However, this pore space due to freeze-thawing can increase the production of coalbed methane when mining deep coal seams. Water is one of the most important factors in slope destabilization, but is the key to fracturing coal seams by liquid nitrogen freeze-thaw. In this paper, we carry out liquid nitrogen (LN<sub>2</sub>) cycling freeze-thaw experiments based on nuclear magnetic resonance (NMR) technology to study the characteristics of pore water changes. The results of the study show that: (1) Pore bound water mostly exists in small and medium-sized pores, and pore free water mostly exists in large pores; with the increase of the number of freeze-thaw cycles of LN<sub>2</sub>, the pore expansion causes the migration of pore water, and the relaxation time of the first peak appears to be overtaken and lagged; (2) Coal samples had the best effect at 15 freeze-thaw cycles. The number of freeze-thaw cycles was positively correlated with water content volume fraction, pore water accumulation, effective pore water percentage, and effective pore throat percentage before 15 cycles, and the opposite was true after 15 cycles, and BBC coal sample had the best fracturing effect; (3) The initial pore connectivity of the coal is poor, the degree of mobilization is high, and the pore water is endowed with less pore water, and the degree of pore water mobilization decreases and then increases by freeze-thaw cycles, and the difference is the smallest in the 15th cycle; (4) LN<sub>2</sub> low temperature and pore water phase change caused by pore water “water wedge and ice wedge” mutual transformation caused by pore damage.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108388"},"PeriodicalIF":8.4,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seismic response and progressive failure patterns of shattered slopes controlled by non-persistent joints: insights from shaking table tests and numerical simulations 由非持久节理控制的破碎边坡的地震反应和渐进破坏模式：来自振动台试验和数值模拟的见解

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-23 DOI: 10.1016/j.enggeo.2025.108384

Daping Tai , Shengwen Qi , Tao Wang

{"title":"Seismic response and progressive failure patterns of shattered slopes controlled by non-persistent joints: insights from shaking table tests and numerical simulations","authors":"Daping Tai , Shengwen Qi , Tao Wang","doi":"10.1016/j.enggeo.2025.108384","DOIUrl":"10.1016/j.enggeo.2025.108384","url":null,"abstract":"<div><div>The non-persistent discontinuities from earthquake-induced shattering exert a dominant control on the dynamic behavior of slopes. This study investigates the seismic response and progressive failure of shattered slopes governed by these joints through large-scale shaking table tests and discrete element method (DEM) simulations. Key findings reveal that a controlling non-persistent joint shifts the peak seismic response from the crest to the vicinity of the joint opening, thereby expanding the high-response zone. Crucially, the response patterns from early, low-amplitude shaking accurately delineate the ultimate failure zone. The progressive failure mechanism evolves through three distinct stages: (1) tensile fracturing of the slope shoulder, (2) rock bridge penetration to form the primary sliding surface, and (3) propagation of a secondary sliding surface. This work clarifies the dual role of non-persistent joints in modifying seismic demand and governing failure, providing a more precise framework for assessing and mitigating seismic slope hazards.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108384"},"PeriodicalIF":8.4,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154872","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An integrated simulation–learning framework for rapid prediction of regional snow avalanche runout and hazard metrics 一个集成的模拟学习框架，用于快速预测区域雪崩跳动和危害指标

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-19 DOI: 10.1016/j.enggeo.2025.108373

Jian Guo , Yao Li , Jiansheng Hao , Zhao Zhang

{"title":"An integrated simulation–learning framework for rapid prediction of regional snow avalanche runout and hazard metrics","authors":"Jian Guo , Yao Li , Jiansheng Hao , Zhao Zhang","doi":"10.1016/j.enggeo.2025.108373","DOIUrl":"10.1016/j.enggeo.2025.108373","url":null,"abstract":"<div><div>Snow avalanches pose significant and growing risks in the southeastern Tibetan Plateau, where steep terrain and limited data availability challenge effective hazard assessment. This study proposes a hybrid modeling framework (ADS-DNN), which integrates a limited set of physically based avalanche simulations with deep neural networks to enable rapid prediction of key hazard metrics at a regional scale. A total of 206 simulations were conducted using real terrain and snow parameters across diverse avalanche-prone basins. The simulation results serve as training data for the neural network, which uses terrain and snow features, such as slope, elevation, depth, and density, to predict four key indicators: the maximum runout distance, velocity, flow depth, and deposition area. Field photos were used to validate the simulation reliability and support model calibration. Applied to the Nyingchi region, the ADS-DNN model achieves high predictive performance while reducing computation time from four days to a few minutes. This framework provides a scalable and transferable solution for avalanche hazard mapping and early warning in mountainous regions with limited monitoring data. While the approach demonstrates good performance, its accuracy depends on the representativeness of the simulated scenarios and is constrained by the limited availability of detailed field observations.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108373"},"PeriodicalIF":8.4,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145154874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced seismic microzonation of a medium size city over a deep sedimentary basin: The case of Foggia (Southern Italy) 深沉积盆地上中型城市的超前地震微带：以意大利南部福贾为例

IF 8.4 1区工程技术

Engineering Geology Pub Date : 2025-09-18 DOI: 10.1016/j.enggeo.2025.108369

N. Putrino , G. Cardillo , N. Carfagna , D. Albarello

{"title":"Advanced seismic microzonation of a medium size city over a deep sedimentary basin: The case of Foggia (Southern Italy)","authors":"N. Putrino , G. Cardillo , N. Carfagna , D. Albarello","doi":"10.1016/j.enggeo.2025.108369","DOIUrl":"10.1016/j.enggeo.2025.108369","url":null,"abstract":"<div><div>Seismic microzonation is a basic element for emergency planning and developing effective risk reduction strategies. An application is presented of a cost-effective advanced strategy for the seismic microzonation of a large settlement: the city of Foggia in Southern Italy. Available geological and geophysical data have been reinterpreted and integrated with inversion techniques in order to reconstruct the seismostratigraphic structure of the local subsurface. Numerical simulations have been considered to infer the impact of these configurations on the local seismic hazard by taking into account uncertainty affecting the subsoil configuration. It has been demonstrated that the depth of the reference seismic bedrock plays a crucial role in hazard assessment, but its identification becomes challenging in the presence of a deep sedimentary basin, such as in the case of Foggia. Unlike most previous seismic microzonation studies in Italy, this work addresses uncertainties in expected seismic amplification effects and by considering alternative reference seismic bedrock configurations. On this basis, peak ground acceleration relative to 475y return period has been estimated for the study area by accounting for site effects and relevant uncertainty in the frame of a coherent probabilistic approach.</div></div>","PeriodicalId":11567,"journal":{"name":"Engineering Geology","volume":"357 ","pages":"Article 108369"},"PeriodicalIF":8.4,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145093789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0