Bulletin of Engineering Geology and the Environment最新文献_第8页

Investigating Dawanzi tunnel deformation induced by deep-seated gravitational slope deformation in Baihetan reservoir at Jinsha river 金沙江白鹤滩水库深部重力边坡变形诱发大湾子隧道变形研究

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-15 DOI: 10.1007/s10064-025-04416-7

Kaiyu Ren, Xin Yao, Fuchu Dai, Ximing Chen, Chuangchuang Yao, Zhenkai Zhou

{"title":"Investigating Dawanzi tunnel deformation induced by deep-seated gravitational slope deformation in Baihetan reservoir at Jinsha river","authors":"Kaiyu Ren, Xin Yao, Fuchu Dai, Ximing Chen, Chuangchuang Yao, Zhenkai Zhou","doi":"10.1007/s10064-025-04416-7","DOIUrl":"10.1007/s10064-025-04416-7","url":null,"abstract":"<div><p>Mountain tunnels are usually vulnerable due to the existence of fault fracture zones and various types of slope instability. Existing research primarily focuses on tunnelling through fault zones and structural damage caused by fault movements. The research on the deformation of built tunnels caused by reservoir-induced slope deformation remains limited. This study aims to investigate the deformation mechanism of the Dawanzi tunnel after reservoir filling in the Baihetan hydropower station and analyze the impact of different mechanisms on the governance decision of the tunnel. The integrated methods, including the field investigation, airborne light detection and ranging (LiDAR) survey, and interferometry synthetic aperture radar (InSAR) observation, ensured the detailed interpretation of the geological, geomorphologic and surface deformation characteristics of the slope. A three-dimensional numerical model of a tunnel crossing a fault fracture zone was established to analyze the displacement and stress condition of the lining under reservoir filling. Results show that the fault fracture zone plays a vital role in tunnel damage. It provided favorable geological conditions for the deep-seated gravitational slope deformation (DSGSD) induced by reservoir filling. A local ancient landslide developed on the right front side of the DSGSD with a larger deformation magnitude. Several pieces of evidence, including geomorphic features, deformation characteristics, and drilling, indicate that the DSGSD caused the tunnel damage rather than the landslide movement. No matter the spatial position of lining damage and shear stress distribution, simulated results based on the geological model can well correspond to the actual situation, which verifies the correctness of the proposed tunnel deformation mechanism. The research result can provide helpful information on the supporting design and governance decisions of the Dawanzi tunnel.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144843255","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

Spatial and size distributions of large landslides along the southeastern margin of the Tibetan Plateau: the case of the Liangshan area 青藏高原东南缘大型滑坡的空间与规模分布——以凉山地区为例

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-14 DOI: 10.1007/s10064-025-04430-9

Gang Sun, Mingwei Zhou, Bo Liu, Lijian Gao, Jun Li, Zhihong Li, Min Zhao, Zixuan Tao, Yong Zhu, Yuantao Yang, Ye Yuan, Bo Zhao

{"title":"Spatial and size distributions of large landslides along the southeastern margin of the Tibetan Plateau: the case of the Liangshan area","authors":"Gang Sun, Mingwei Zhou, Bo Liu, Lijian Gao, Jun Li, Zhihong Li, Min Zhao, Zixuan Tao, Yong Zhu, Yuantao Yang, Ye Yuan, Bo Zhao","doi":"10.1007/s10064-025-04430-9","DOIUrl":"10.1007/s10064-025-04430-9","url":null,"abstract":"<div><p>The Liangshan Yi Autonomous Prefecture (LS area) is a region with complex geological conditions located at the southeastern margin of the Tibetan Plateau and is renowned for its susceptibility to landslides. However, there is a lack of understanding of the distribution of landslides in the LS area. To address this gap, a comprehensive inventory of large landslides is first established on the basis of remote sensing and field investigations, followed by spatial analysis. The results reveal that the LS area hosts at least 2142 large landslides (volume ≥ 10<sup>6</sup> m³), covering a total area and volume of 1758.2 km² and 91.3 km³, respectively. More landslides are concentrated in the Yalong River subbasin than in other subbasins. Landslides exhibit an obvious fault-controlling effect, with more than 91% occurring within 2 km of faults, and the landslide frequency decreases exponentially with increasing distance from faults. Areas with alternating soft and hard rock types are more susceptible to landslides than areas with other rock groups are. The landslide size increases exponentially with topographic relief. Frequent seismic activity has been identified as an important potential trigger. Owing to limited data, spatial and size analyses may be immature, necessitating further systematic research.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144832184","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

Cracking behavior of soil subjected to the recycling of fly ash in semiarid regions 半干旱区粉煤灰循环利用对土壤开裂特性的影响

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-13 DOI: 10.1007/s10064-025-04419-4

Tiao Zhang, Mingming Hu, Cong Liu, Xinwei Wang, Quan Zhao

引用次数: 0

Integration of multi-physical signals for monitoring shear failure in jointed granite: insights from experimental study 多物理信号集成监测节理花岗岩剪切破坏：来自实验研究的见解

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-11 DOI: 10.1007/s10064-025-04438-1

Zhigang Yao, Hu Luo, Junyang He, Kaicheng Ying, Tao Yu, Yong Fang

{"title":"Integration of multi-physical signals for monitoring shear failure in jointed granite: insights from experimental study","authors":"Zhigang Yao, Hu Luo, Junyang He, Kaicheng Ying, Tao Yu, Yong Fang","doi":"10.1007/s10064-025-04438-1","DOIUrl":"10.1007/s10064-025-04438-1","url":null,"abstract":"<div>\u0000 \u0000 <p>Shear failure is the primary mode of failure in jointed rock masses. As such, in-depth examination of multi-physical signals is necessary to accurately monitor rock mass conditions throughout shear processes. This study employed direct shear tests on jointed granite specimens with different roughness levels, utilizing an advanced multi-physical field monitoring system. By applying computer vision technology, signal mode decomposition, and statistical analysis, the research explored the evolution of acoustic emission (AE), infrared (IR), and electromagnetic radiation (EMR) signals during shear testing. The investigation identified distinct stages in the shear process: compaction, elastic deformation, plastic deformation, post-peak failure, and stick-slip instability. AE signals displayed characteristic phases that corresponded with shear stress variations, whereas IR signals provided predictive insights into failure events through temperature field changes. EMR signals revealed electromagnetic responses at various shear stages. AE signals exhibited a stronger correlation with shear stress changes compared to IR and EMR signals, which showed varying degrees of temporal delay. The findings of this study emphasize the significance of integrating multi-physical signal analysis to enhance the understanding and monitoring of shear failure dynamics in jointed rock masses.</p>\u0000 </div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810950","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

Hybrid hyperspectral imaging with surface hardness for recognizing Spatial deterioration of discontinuous carbonate rock slope 基于表面硬度的混合高光谱成像识别非连续碳酸盐岩边坡空间劣化

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-07 DOI: 10.1007/s10064-025-04445-2

Chiwei Chen, Haiqing Yang, Lichuan Chen, Guizhong Huang, Jianghua Ni, Yulin Zou

{"title":"Hybrid hyperspectral imaging with surface hardness for recognizing Spatial deterioration of discontinuous carbonate rock slope","authors":"Chiwei Chen, Haiqing Yang, Lichuan Chen, Guizhong Huang, Jianghua Ni, Yulin Zou","doi":"10.1007/s10064-025-04445-2","DOIUrl":"10.1007/s10064-025-04445-2","url":null,"abstract":"<div><p>The presence of fractures in discontinuous carbonate rock slopes affects the mechanical properties, which are vital for analyzing the deterioration of hydro-fluctuation belt. However, the spatial deterioration difference of rock mass discontinuities with the environment of reservoir water level fluctuation remains poorly understood. To investigate the deterioration of hydro-fluctuation belt, the phenomenon that the degree of water-rock interaction weakens with elevation is verified by the strength characteristics of the rock mass. Considering that chemical dissolution plays a non-negligible role in the deterioration of carbonate rock, the correlation was constructed between the spectral response based on chemical composition and the mechanical properties characterized by Schmidt hammer rebound value. The comparison shows that the normalized differential spectral index is optimal for describing this correlation. Subsequently, the discontinuities of rock mass can be distinguished as high hardness, low hardness, micro-fracture, and opening using the SG-CARS-PLS inversion model with nine characteristic wavelengths. The findings demonstrate that the characteristics of rock mass discontinuities can be quantified by the constructed spectral index. The development rate of the micro-fracture and opening areas obtained from spectral identification increases with the submergence frequency of water level. The deterioration of the carbonate rock slope progresses from micro-fractures to openings, and ultimately to the intersection of fractures. These evolutions are controlled by the stratification plane. As a result, identifying fractures on discontinuities is critical for assessing the deterioration of carbonate rock hydro-fluctuation belt. It serves as a warning sign of geological hazards in the Three Gorges Reservoir Area.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162562","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

Roadside devegetation by microbially induced carbonate precipitation using osmosis, ammonium toxicity, and cementation effects 利用渗透、铵毒性和胶结效应的微生物诱导碳酸盐沉淀对路边植被的破坏

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-07 DOI: 10.1007/s10064-025-04437-2

Jinung Do, Jongbin Jin

{"title":"Roadside devegetation by microbially induced carbonate precipitation using osmosis, ammonium toxicity, and cementation effects","authors":"Jinung Do, Jongbin Jin","doi":"10.1007/s10064-025-04437-2","DOIUrl":"10.1007/s10064-025-04437-2","url":null,"abstract":"<div><p>Microbially induced carbonate precipitation (MICP) uses urease-producing bacteria to precipitate calcium carbonate (CaCO<sub>3</sub>), leading to soil improvement. MICP technology is directly related to the vegetation in the soil resulting from chemicals and cementation; however, only few studies have been conducted on this topic. This study aims to elucidate the application of MICP in the management of roadside vegetation using laboratory- and field-scale tests. At the laboratory scale, the effects of several chemical components of MICP, such as deionized water, growth media, bacteria, urea, and CaCl<sub>2</sub>, on seed germination and growth were explored using soil column testing in a growth chamber. A series of field tests were conducted on a highway embankment considering different initial ground conditions, such as original, cutting, and cultivated grounds. Leaf height and soil properties, such as electrical conductivity, ammonium concentration, pH, exchangeable calcium, and CaCO<sub>3</sub> mass, were measured over time. The results showed the efficacy of devegetation by MICP and clarified that the devegetation mechanism occurs in three steps: as a short-term effect by osmosis, an intermediate-term effect by ammonium toxicity, and a long-term effect by cementation.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162561","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

Geomechanics assessment of shale under interaction with thermally conditioned crosslinked fracturing fluid 热条件交联压裂液作用下页岩地质力学评价

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-05 DOI: 10.1007/s10064-025-04424-7

Cajetan Chimezie Iferobia, Maqsood Ahmad

{"title":"Geomechanics assessment of shale under interaction with thermally conditioned crosslinked fracturing fluid","authors":"Cajetan Chimezie Iferobia, Maqsood Ahmad","doi":"10.1007/s10064-025-04424-7","DOIUrl":"10.1007/s10064-025-04424-7","url":null,"abstract":"<div><p>Slickwater and linear gel applications in hydraulic fracturing of shale gas reservoirs are faced with challenges. Proppants are poorly transported, produced fractures are narrow, and fluid leak-off potential is high with slickwater usage. Linear gel requires a large concentration of gelling agent for proppant suspensibility. Crosslinked fracturing fluid provides better clean-up properties, requires lower polymer concentration, and is associated with minimal fluid loss. Shale geomechanical behaviour under interaction with crosslinked fracturing fluid remains poorly understood. Crosslinked fracturing fluid was formulated and used in the saturation of Eagle Ford shales under temperature conditions. Mineralogical characterization and elemental composition analysis were carried out using FESEM, EDX, and XRD technologies. Samples’ geomechanical properties were evaluated through the application of a uniaxial compression system and afterward subjected to failure pattern analysis. Eagle Ford shale-crosslinked fracturing fluid interaction under reservoir temperature conditions demonstrated the potential of promoting shale mechanical integrity. Unconfined compressive strength (UCS) varied from 67.26 to 133.79 MPa, and static Young’s modulus (E<sub>sta</sub>) from 5.49 to 7.63 GPa. These were higher than ambient sample UCS and E<sub>sta</sub> at 61.39 MPa and 4.78 GPa respectively. The developed fit-driven correlations (R-squares: 0.71223 and 0.622) can support the assessment of UCS response with known E<sub>sta</sub> or PIM for Eagle Ford shale under uniaxial compression and fluid saturation at temperature conditions. Uniaxial compression of samples to failure indicated the dominant occurrence of multiple axial splitting among Eagle Ford shales. This research can be of relevance in engineering design of crosslinked fracturing fluid towards optimized hydraulic fracturing of shale.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162088","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

Beyond conventional methods: direct calculation of P32 in DFN models for enhanced rock mass analysis 超越常规方法：直接计算DFN模型中的P32，以增强岩体分析

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-08-05 DOI: 10.1007/s10064-025-04432-7

Mehrdad Zanganeh, Mosleh Eftekhari, Morteza Ahmadi

{"title":"Beyond conventional methods: direct calculation of P32 in DFN models for enhanced rock mass analysis","authors":"Mehrdad Zanganeh, Mosleh Eftekhari, Morteza Ahmadi","doi":"10.1007/s10064-025-04432-7","DOIUrl":"10.1007/s10064-025-04432-7","url":null,"abstract":"<div><p>The Discrete Fracture Network (DFN) model is utilized to characterize the heterogeneous nature of rock masses. The most reliable parameter for fracture intensity within DFN modeling is the volumetric fracture intensity, denoted as P32. Direct field measurement of P32 is not feasible; hence, it is estimated using other 1D and 2D fracture intensity parameters. The influence of P32 uncertainties on rock mass characterization and the representative elementary volume (REV) demands analysis. This paper examines the effects of P32 estimation uncertainties, derived from 2D fracture intensity—specifically aerial density, P20— on the geometrical-based REV size. Discrete Fracture Network simulations were employed to infer P32 values from P20 inputs. A novel method for estimating P32 from P20 is proposed and compared with the conventional approaches using the underground powerhouse cavern of the Azad dam as a case study. In the proposed method, P32 is directly calculated within the DFN, which is generated based on size, orientation distribution, and P20 values. Subsequent numerical analyses validate the DFN models via rock quality designation (RQD) and assess the impact of P32 uncertainties on REV size, considering both RQD and P32. Results indicate that the RQD values computed within the DFN model, based on the proposed method, suggest greater accuracy compared to conventional methods. Although the REV size estimates showed no significant difference between the two approaches, the proposed method was found to be more time-efficient, offering advantages in both computational performance and modeling accuracy.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 9","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162087","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

Key influencing factors and prediction model for the tensile strength of compacted clayey loess 粘性土压实抗拉强度关键影响因素及预测模型

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-07-31 DOI: 10.1007/s10064-025-04427-4

Lulu Liu, Tong Liu, Xiaoyan Liu, Zhe Li, Guojun Cai

{"title":"Key influencing factors and prediction model for the tensile strength of compacted clayey loess","authors":"Lulu Liu, Tong Liu, Xiaoyan Liu, Zhe Li, Guojun Cai","doi":"10.1007/s10064-025-04427-4","DOIUrl":"10.1007/s10064-025-04427-4","url":null,"abstract":"<div><p>The tensile strength of loess directly impacts the stability and safety of engineering constructions in loess regions. To systematically investigate the key factors influencing the tensile strength of compacted loess, uniaxial tensile tests were conducted on loess samples using a self-developed high-precision uniaxial testing apparatus. The effects of saturation and tensile rate were analyzed, and a mathematical model was developed to predict the tensile strength of compacted loess. Additionally, the dynamic tensile behavior of loess under stepwise loading was studied to examine the rate effect. The microstructural characteristics of clayey loess at different moisture contents were also explored to help explain the underlying mechanisms. The results showed that the relationship between saturation and tensile strength in clayey loess is asymmetric. Water’s influence on clayey loess is not only related to capillary suction but also to the hydration of the clay particles. The relationship between tensile rate and tensile strength exhibited a nonlinear enhancement: the higher the rate, the slower the increase in tensile strength. As the tensile rate increased, the stress–strain curve of the soil exhibited more brittle fracture characteristics. Under stepwise tensile conditions, the tensile rate in the second stage was negatively correlated with the ultimate tensile strain. Based on the experimental results, a reliable prediction model was established to forecast the tensile strength of compacted loess under various key influencing factors. These findings provide theoretical insights for engineering design and soil improvement technologies in loess regions.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 8","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145171221","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

Dynamic response characteristics and initiation mechanism of weak-base anti-dip slopes: a case study of the Guantan landslide 弱基抗倾边坡动力响应特征及起裂机制——以官滩滑坡为例

IF 4.2 2区工程技术

Bulletin of Engineering Geology and the Environment Pub Date : 2025-07-26 DOI: 10.1007/s10064-025-04431-8

Ling Zhu, Shenghua Cui, Xiangjun Pei, Leilei Liu, Yufei Liang, Luguang Luo

{"title":"Dynamic response characteristics and initiation mechanism of weak-base anti-dip slopes: a case study of the Guantan landslide","authors":"Ling Zhu, Shenghua Cui, Xiangjun Pei, Leilei Liu, Yufei Liang, Luguang Luo","doi":"10.1007/s10064-025-04431-8","DOIUrl":"10.1007/s10064-025-04431-8","url":null,"abstract":"<div><p>The Guantan landslide, with an estimated volume of 4.68 × 10<sup>6</sup> m<sup>3</sup>, was one of the most catastrophic mass movements triggered by the 2008 Wenchuan earthquake. The landslide deposit dammed the river, forming a barrier lake that posed severe threats to downstream populations and infrastructure. Unlike many earthquake-induced landslides, the Guantan landslide developed within an anti-dip slope structure underlain by a weak mudstone layer, drawing particular attention. However, the dynamic responses and failure mechanisms of such weak-base anti-dip slopes under seismic loading remain insufficiently understood. This study combines field investigations, shaking table experiments, and discrete element numerical simulations to examine the deformation and failure processes of the Guantan slope. Shaking table tests demonstrate that under seismic loading, peak rock pressure within the mudstone is significantly higher than in the adjacent dolomite, with the highest values near the slope surface. Numerical results reveal a four-stage failure process: compressive deformation of mudstone under gravity, seismic-induced cracking in mudstone and tensile–shear fracture development in dolomite, crack coalescence leading to a continuous slip surface, and rainfall infiltration and softening-induced failure. The study highlights that incompatible deformation amplifies tensile–compressive and shear stresses within the mudstone layer. A near-surface rocking effect causes transient stress concentration, promoting damage. These penetrating cracks accelerate rainfall infiltration and mudstone softening, ultimately destabilizing the slope. This integrated analysis enhances our understanding of the seismic failure mechanisms of anti-dip slopes with weak bases.</p></div>","PeriodicalId":500,"journal":{"name":"Bulletin of Engineering Geology and the Environment","volume":"84 8","pages":""},"PeriodicalIF":4.2,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145170247","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