Bulletin of Engineering Geology and the Environment最新文献_第2页

Engineering application of integrated geophysical exploration methods for disaster identification and treatment in thick fault zones of tunnels: a case study of the right tunnel of the West Tianshan ultra-long tunnel 综合物探方法在隧道厚断裂带灾害识别与治理中的工程应用——以西天山超长隧道右侧隧道为例

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-07 DOI: 10.1007/s10064-026-05342-y

Pengfei Ma, Xiaofei Shang, Zhenhua Pan, Qian Guo, Shuo Zhang, Xutian Zhang

{"title":"Engineering application of integrated geophysical exploration methods for disaster identification and treatment in thick fault zones of tunnels: a case study of the right tunnel of the West Tianshan ultra-long tunnel","authors":"Pengfei Ma, Xiaofei Shang, Zhenhua Pan, Qian Guo, Shuo Zhang, Xutian Zhang","doi":"10.1007/s10064-026-05342-y","DOIUrl":"10.1007/s10064-026-05342-y","url":null,"abstract":"<div><p>Ultra-long tunnels crossing active fault zones in plateau regions are prone to mud inrush, sand gushing, and rockburst, while single-method advance detection may lead to discontinuous identification and missed anomaly boundaries. This study proposes a multi-scale integrated geophysical prospecting framework for continuous hazard identification in thick fault zones. The framework combines methods with different detection depths and physical sensitivities and introduces an overlap-based criterion to improve continuity between adjacent survey windows. In the field application, an overlap length of approximately 20–30 m was arranged between adjacent survey sections to support cross-validation of anomaly boundaries. The framework was applied to the F1 fault zone in the right tunnel of the West Tianshan ultra-long tunnel using seismic acoustic prospecting and ground-penetrating radar. The integrated interpretation identified weak interlayers and mud inrush zones, water-bearing fault zones, and fractured hard rock with potential rockburst. The detected anomalous zones showed good spatial consistency with excavation observations, including the collapse near YK130 + 135.0, the mud inrush near YK130 + 220.0, and a fractured zone with minor seepage near YK130 + 355.0. The results indicate that the proposed framework improves boundary continuity and recognition reliability, providing practical support for hazard identification and treatment zoning in complex faulted ground.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 11","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098480","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 ejected particle shape and geometry on the projectile behavior of flyrock: A stochastic analysis 抛射颗粒形状和几何形状对飞岩抛射行为的影响：一个随机分析

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-05 DOI: 10.1007/s10064-026-05324-0

Moein Bahadori, Vahid Mahmoudi, Seyed Najmedin Almasi, Reza Bastami

{"title":"Effect of ejected particle shape and geometry on the projectile behavior of flyrock: A stochastic analysis","authors":"Moein Bahadori, Vahid Mahmoudi, Seyed Najmedin Almasi, Reza Bastami","doi":"10.1007/s10064-026-05324-0","DOIUrl":"10.1007/s10064-026-05324-0","url":null,"abstract":"<div><p>Flyrock is a critical blast-induced hazard in open-pit mines that can cause injuries, fatalities, and damage to surrounding structures. Although various methods have been proposed to predict flyrock, the random nature of the phenomenon limits the effectiveness of precise deterministic models. Statistical stochastic simulation can therefore provide a more logical approach. In this study, a MATLAB-based stochastic model was developed using a cross-sectional representation of the blast block. Random positions were assigned to particle starting points, while particle dimensions, geometry, velocity, and projection angle were randomly generated. Aerodynamic coefficients were determined from particle dimensions and geometry, and the trajectory of each particle was simulated. The probability of particle breakage upon ground impact was then evaluated. For particles that did not break, rebound trajectories were simulated until complete stoppage. The resulting particle trajectories enabled estimation of muck pile geometry, maximum horizontal and vertical flyrock distances in both forward and backward directions relative to the blast block, and the percentage of particles breaking upon impact. The model was validated using drilling and blasting data from 53 blast blocks in a mine in Lorestan Province, Iran, including measurements of maximum horizontal flyrock distance and average fragmented-rock size. After adjusting the projectile velocities, the simulated maximum horizontal flyrock distance and average fragmented-rock size showed good agreement with the corresponding field measurements. The results demonstrate that the developed probabilistic model can predict key blast outcomes while accounting for multiple real-world parameters.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 11","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098053","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

Multi-factor spatial associations of landslide traces in a loess hilly-gully region: evidence from Baota District, Loess Plateau 黄土丘陵沟壑区滑坡轨迹的多因素空间关联——来自黄土高原宝塔区的证据

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-03 DOI: 10.1007/s10064-026-05331-1

Sen Zhang, Zhenjiang Meng, Chong Xu, Wen Fan, Xin Liang, Fan Zhang, Yufei Song, Chao Li, Xu Zhang

{"title":"Multi-factor spatial associations of landslide traces in a loess hilly-gully region: evidence from Baota District, Loess Plateau","authors":"Sen Zhang, Zhenjiang Meng, Chong Xu, Wen Fan, Xin Liang, Fan Zhang, Yufei Song, Chao Li, Xu Zhang","doi":"10.1007/s10064-026-05331-1","DOIUrl":"10.1007/s10064-026-05331-1","url":null,"abstract":"<div><p>Against intensified climate change, landslide risk is rising. The Chinese Loess Plateau, with distinctive lithology, complex terrain and strong human activity, is sensitive to moisture changes and engineering disturbance, making it a typical region for landslide development. However, regional-scale spatial distribution patterns and scale-dependent factor relationships remain insufficiently understood. Taking Baota District, Yan’an as a case study, we selected eight factors and integrated field investigation, UAV verification, landslide number density (LND), landslide area percentage (LAP), frequency ratio (FR), and GeoDetector analysis. Field investigation shows that landslide traces mainly occur in loess ridge-gully terrain, valley-bank slopes and engineering-affected areas, with small shallow failures predominating and large old landslides showing multi-stage deformation. Spatial analysis indicates concentrations at elevations of 1000–1100 m, slopes of 30–40°, 550–600 mm mean annual precipitation, within 1000 m of rivers and roads, in Quaternary units, and in forest and grassland areas. GeoDetector shows marked area-class differences in factor explanatory power for individual landslide-trace area variation: slope is prominent in several classes, whereas stratigraphy, elevation and aspect become more important in others. Representative enhanced interactions include slope–aspect, slope–land use and slope–stratigraphy for smaller traces; elevation–aspect, elevation–slope and slope–aspect for intermediate sizes; and slope–distance to rivers for the largest traces. Overall, these scale-dependent associations occur within a regional setting characterized by steep topography, favorable conditions for water circulation, and frequent human activities. These findings provide a reference for differentiated landslide investigation and prevention in loess hilly-gully regions.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 11","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098096","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

Acid-induced geochemical and geomechanical deterioration of Siwalik sandstone: an experimental study 酸致Siwalik砂岩地球化学和地质力学劣化的实验研究

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-03 DOI: 10.1007/s10064-026-05337-9

Atish Nandi, Nachiketa Rai, Priti Maheshwari

{"title":"Acid-induced geochemical and geomechanical deterioration of Siwalik sandstone: an experimental study","authors":"Atish Nandi, Nachiketa Rai, Priti Maheshwari","doi":"10.1007/s10064-026-05337-9","DOIUrl":"10.1007/s10064-026-05337-9","url":null,"abstract":"<div><p>This study presents an experimental investigation of the geomechanical, geochemical, and microstructural response of Shivalik sandstone under acidic environments. Controlled laboratory tests, including unconfined compressive strength (UCS), Brazilian tensile strength (BTS), and elastic modulus measurements, were conducted across pH levels ranging from 1 to 7. The results show that strong acidity (pH 1–2) leads to significant reductions in mechanical properties, with decreases of up to 30.2% in UCS, 60.8% in BTS, and 65.3% in elastic modulus, indicating pronounced material weakening. Ion chromatography results reveal increasing concentrations of dissolved cations (Ca²⁺, Mg²⁺, K⁺, Na⁺) with decreasing pH, suggesting enhanced mineral dissolution. X-ray diffraction (XRD) analysis and microstructural observations provide supporting qualitative evidence of mineralogical alteration associated with acidic exposure. These datasets are interpreted in a complementary manner to identify consistent trends in chemical alteration and mechanical degradation. The study focuses on establishing empirical relationships between acidity, ion release, and mechanical response. The interpretation of mineral dissolution and associated microstructural changes remains qualitative to semi-quantitative. Overall, the results provide a coherent experimental dataset highlighting acid-induced degradation trends in sandstone. The findings contribute to improved understanding of rock behaviour in chemically aggressive environments and may be useful for geotechnical and subsurface engineering applications.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 11","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098155","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

Geological features and geotechnical characterization of Aegadian Islands for the evaluation of site effects 用于场地效果评价的埃加德群岛地质特征和岩土工程特征

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-03 DOI: 10.1007/s10064-026-05336-w

Antonio Cavallaro, Salvatore Grasso, Maria Stella Vanessa Sammito

{"title":"Geological features and geotechnical characterization of Aegadian Islands for the evaluation of site effects","authors":"Antonio Cavallaro, Salvatore Grasso, Maria Stella Vanessa Sammito","doi":"10.1007/s10064-026-05336-w","DOIUrl":"10.1007/s10064-026-05336-w","url":null,"abstract":"<div><p>This paper investigates the geotechnical and dynamic characteristics of the soils in the Aegadian Islands (Sicily, Italy), an archipelago comprising the main islands of Favignana, Levanzo and Marettimo. The islands boast some buildings of particular historical and monumental interest, originally built for the processing and marketing of tuna. In order to define the subsoil models for ground response analyses, an accurate geological and geotechnical investigations programme was performed in several test sites, including Multichannel Analysis Surface Wave (MASW) tests and HVSR (Horizontal to Vertical Spectral Ratio) tests. Two different approaches were employed for the evaluation of the site effects. In the first approach, a set of seven waveforms were selected from the European Strong-motion Database and applied at the base of the subsoil model. In the second approach, the latest seismic event to hit the investigated area was used and a deconvolution analysis was performed. Results of ground response analyses are presented in terms of elastic acceleration response spectra, maximum accelerations with depth, amplification ratio and maximum shear strain with depth. The analyses show that the most significant site effects are obtained for Favignana Island and similar results are derived using the two different approaches for defining of the seismic action. The results of this work provide valuable information for the development of urban planning for the seismic risk reduction in the Aegadian Islands.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 10","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132407","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

Moisture effects on CO2-CH4 replacement in coal: adsorption, desorption and injection ratio 水分对煤中CO2-CH4置换的影响：吸附、解吸和注入比

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-03 DOI: 10.1007/s10064-026-05312-4

Zhiyuan Xu, Aitao Zhou, Yushuang Hao, Yuexin Yang, Kai Wang, Ningning Kang, Fangzhou Song, Yifu Liu

{"title":"Moisture effects on CO2-CH4 replacement in coal: adsorption, desorption and injection ratio","authors":"Zhiyuan Xu, Aitao Zhou, Yushuang Hao, Yuexin Yang, Kai Wang, Ningning Kang, Fangzhou Song, Yifu Liu","doi":"10.1007/s10064-026-05312-4","DOIUrl":"10.1007/s10064-026-05312-4","url":null,"abstract":"<div><p>To investigate the influence of moisture on displacement efficiency during CO<sub>2</sub>-enhanced CH<sub>4</sub> diffusion, CO<sub>2</sub> was injected under isobaric conditions into coal samples with varying moisture contents to displace adsorbed CH<sub>4</sub>. In this study, the effect of moisture on CO₂-enhanced coalbed methane recovery was systematically investigated through competitive adsorption experiments on anthracite with varying moisture contents (0–3%) at 25 °C under equilibrium pressures of 0.8–2.4 MPa. Results show that moisture suppresses gas adsorption more strongly for CO₂ than for CH₄, as evidenced by the moisture-induced replacement amount of CO₂ being consistently greater than that of CH₄ under identical conditions. The CH₄ desorption rate increases with equilibrium pressure but decreases with moisture content; within 0.8–2.4 MPa, moisture causes a reduction of 6.39% to 9.10%. The CO₂ injection ratio declines with increasing moisture, with decreasing gradients ranging from 0.263 at 0.8 MPa to 0.192 at 2.4 MPa, indicating a diminishing marginal effect. Adsorption capacity is enhanced by pressure but suppressed by moisture, showing opposite regulatory trends. Empirical exponential functions were established to quantitatively describe the dependence of CH₄ desorption rate and CO₂ injection ratio on moisture content, with negative k values reflecting the exponential attenuation of moisture effects. These findings provide quantitative insights into moisture-governed displacement behavior and offer practical guidance for CO₂ injection in water-bearing coal seams.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 11","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098156","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 on face instability of shield tunneling in saturated sands at various cover depths 饱和砂中不同覆盖深度盾构隧道工作面失稳试验研究

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-02 DOI: 10.1007/s10064-026-05333-z

Wantao Ding, Zhipeng Zhong, Zhou Li, Wenhu Wang, Minghui Zhang, Yiran Wen

{"title":"Experimental study on face instability of shield tunneling in saturated sands at various cover depths","authors":"Wantao Ding, Zhipeng Zhong, Zhou Li, Wenhu Wang, Minghui Zhang, Yiran Wen","doi":"10.1007/s10064-026-05333-z","DOIUrl":"10.1007/s10064-026-05333-z","url":null,"abstract":"<div><p>Strict control of the support pressure is critical for shield tunneling in urban metro projects. However, due to an insufficient understanding of the three-dimensional failure mechanism in saturated sands, the limit support pressure is difficult to determine, and an improper selection can easily lead to face instability. In this study, a series of model tests on face instability were conducted in saturated sands at four different cover depths. The test results indicate that: (1) The support pressure and displacement curve exhibits a four-stage characteristic. As the cover-to-diameter ratio increases, the soil arching effect becomes more significant. For deep tunnels, the maximum ground settlement is only 1/80 of that for shallow tunnels. (2) Face instability induces stress redistribution in the surrounding soil. For shallow tunnels, the failure zone develops more rapidly and propagates to the ground surface, whereas for deep tunnels, the failure zone has a wider horizontal extent, and its height stabilizes at 3 to 4 times the tunnel diameter. The inclination angle of the wedge in the failure zone decreases as the cover-to-diameter ratio increases. (3) Compared to dry sands, the ratio of the limit support pressure to the initial support pressure is larger in saturated sands. The overburden load sustained by the soil arching effect is reduced, and the normalized displacement required to reach the critical settlement <i>S</i><sub><i>cr</i></sub> increases significantly, indicating a delay in the formation and failure of the soil arch. These findings are primarily applicable to medium-dense, well-graded, saturated medium-to-coarse sands.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 10","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132018","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

Time dependent failure evolution of counter tilted rock slopes subjected to mining disturbance and wet dry cycles 采动扰动和干湿循环作用下逆倾斜岩质边坡破坏演化

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-02 DOI: 10.1007/s10064-026-05334-y

Zhangyin Dai, Wenfu Meng, Yunqin Cao, Qingli Luo, Hongwei Bai, Rui Su, Houya Fan, Rongxin Liao

{"title":"Time dependent failure evolution of counter tilted rock slopes subjected to mining disturbance and wet dry cycles","authors":"Zhangyin Dai, Wenfu Meng, Yunqin Cao, Qingli Luo, Hongwei Bai, Rui Su, Houya Fan, Rongxin Liao","doi":"10.1007/s10064-026-05334-y","DOIUrl":"10.1007/s10064-026-05334-y","url":null,"abstract":"<div><p>The synergistic interaction between mining disturbance and wet-dry cycles is identified as the primary mechanism driving the “progressive accumulation and abrupt failure” of counter-inclined rock slopes. An integrated approach combining physical modeling and discrete element method simulations is adopted to investigate the associated catastrophic failure mechanisms. The results show that repeated mining activities induce stress redistribution, thereby promoting crack propagation and rock fragmentation. Rainfall infiltration further weakens rock strength through hydrodynamic erosion and water-induced swelling, forming a positive feedback loop of “crack initiation→seepage propagation→mechanical degradation”.Wet-dry cycles accelerate fracture deterioration and promote a coupled “forward-toppling and rearward-pushing” interaction between counter-inclined strata and coal pillar supports. When the combined hydraulic thrust and self-weight stress exceed the strength of the locked segment, through-going failure of the sliding surface is triggered, resulting in overall slope sliding. The slope failure follows a time-dependent, five-stage evolutionary pattern, including collapse, tensile cracking, shear cracking, creep sliding, and translational slip. These findings provide a theoretical basis for the prevention and control of mine slope disasters under similar geological conditions.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 10","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132143","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

Closure behavior of desiccation cracks in clayey soil under wetting condition 湿润条件下粘性土干裂闭合特性研究

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-10-01 DOI: 10.1007/s10064-026-05332-0

Jiatao Yan, Jian Zhang, Wenrui Liu, David Z. Zhu

{"title":"Closure behavior of desiccation cracks in clayey soil under wetting condition","authors":"Jiatao Yan, Jian Zhang, Wenrui Liu, David Z. Zhu","doi":"10.1007/s10064-026-05332-0","DOIUrl":"10.1007/s10064-026-05332-0","url":null,"abstract":"<div><p>Desiccation cracks in cohesive soils can significantly alter hydraulic conductivity. The self-healing of these cracks can directly influence the moisture transport process within the soil layer. To assess the impact of water-induced crack closure on the infiltration process, this study investigates the closure behavior of cracks in clayey soils. The research methodology integrates physical experiments, image processing techniques, and theoretical analysis. A permeability model with structural changes during the healing process was integrated by introducing a dynamic crack structure factor C(t) to modify the classical Green-Ampt model for improved infiltration prediction. Results demonstrate that crack closure exhibits a two-stage “swelling then closure” behavior, where crack number and total length initially increase due to localized stress release before gradually narrowing and healing. The closure of desiccation cracks in cohesive soils represents a complex, time-dependent process dominated by competing swelling and closure mechanisms, strongly influenced by initial moisture conditions and wetting process. The empirical models provide a quantitative framework for describing crack evolution, while the improved Green-Ampt model offers a practical approach for coupling structural changes with seepage processes. The research findings can provide a reference for the accurate evaluation of soil seepage behavior under rainfall conditions.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 10","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132147","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

Damage characteristics and seismic wave propagation of cross-fault slopes based on shaking table test 基于振动台试验的跨断层边坡损伤特征及地震波传播

IF 4.9 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2026-09-30 DOI: 10.1007/s10064-026-05320-4

Tao Wei, Xuanmei Fan, Mingyao Xia, Pingliang Chen, Lanxin Dai

{"title":"Damage characteristics and seismic wave propagation of cross-fault slopes based on shaking table test","authors":"Tao Wei, Xuanmei Fan, Mingyao Xia, Pingliang Chen, Lanxin Dai","doi":"10.1007/s10064-026-05320-4","DOIUrl":"10.1007/s10064-026-05320-4","url":null,"abstract":"<div><p>Differences in seismic energy transmission between the hanging wall and footwall strongly influence the dynamic response and failure evolution of cross-fault slopes. Yet, their temporal and spatial characteristics during fault dislocation remain insufficiently understood. In this study, a shaking table test was conducted on a 30° cross-fault slope, and the Hilbert-Huang Transform (HHT) and marginal spectrum were employed to investigate the evolution of energy response during seismic excitation, fault dislocation, and progressive slope failure. The results show that the slope's top exhibits strong responses to high-frequency signals, while the bottom responds predominantly to low-frequency signals. Resonance occurs when the input frequency approaches natural frequency, amplifying energy response on the hanging wall. The fault dislocation is the primary factor for the differences in the Hilbert energy distribution and the amplification of mid-high-frequency signals, especially between 18 ~ 32 Hz. After dislocation, residual offset, fault-zone loosening, and cracking reduce the continuity of the original energy-transmission paths. Progressive failure can be divided into initial damage accumulation at 0.6 ~ 0.7 g, surface-to-interior crack propagation at 0.8 ~ 0.9 g, and through-going cracking and block failure at 1.0 ~ 1.2 g. Inward crack propagation is first directly observed at 0.8 g and is accompanied by a marked deterioration of the hanging wall energy response. The Hilbert energy transfer coefficient generally decreases at locations affected by progressive cracking, whereas its relative change rate reflects the energy redistribution. The research findings contribute to the understanding of energy responses in cross-fault slopes during seismic events, and offer valuable guidance for assessing the seismic stability of cross-fault slopes.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"85 10","pages":""},"PeriodicalIF":4.9,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149133171","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