International Journal for Numerical and Analytical Methods in Geomechanics最新文献_第10页

Influence of Inclination of En-Echelon Joints on Shearing Behavior of Crystalline Rock 雁列节理倾角对结晶岩剪切特性的影响

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-07 DOI: 10.1002/nag.70008

Jun Peng, Zixin Wang, Linfei Wang, Chuanhua Xu, Kun Pan, Bibo Dai

{"title":"Influence of Inclination of En-Echelon Joints on Shearing Behavior of Crystalline Rock","authors":"Jun Peng, Zixin Wang, Linfei Wang, Chuanhua Xu, Kun Pan, Bibo Dai","doi":"10.1002/nag.70008","DOIUrl":"10.1002/nag.70008","url":null,"abstract":"<div>\u0000 \u0000 <p>Stability of rock masses in rock slope is significantly threatened by the presence of en-echelon joints. Most previous studies focus on artificially jointed rock mass, and lonely a limited research has been conducted on the shearing performance of crystalline rock possessing en-echelon joints. In this study, a modified grain-based model (GBM), which considers the shape of feldspar in real rock, is used to investigate the effect of en-echelon joint angle on the strength behavior and the associated micro-cracking evolution of crystalline rock under different normal stresses. The simulation results indicate that peak shear strength and the principal direction of anisotropy generally reach their maximum values at en-echelon joint angle of −15°. Micro-cracks typically initiate at the tips of en-echelon joints, and the connecting pattern between these joints is notably affected by joint angle. The results reveal that, despite exhibiting a high microscopic damage ratio, the shear strength of the rock specimen with negative en-echelon joint angle increases due to enhanced inter-particle friction and mechanical interlocking under compression. On the other hand, positive joint angle induces disc separation and rotational failure, which reduces shear resistance. In addition, an increase in normal stress amplifies the damage ratio among all joint angles. By analyzing the disc displacement field using fracture mechanics, this study reveals how joint angle and normal stress affect the propagation of wing cracks and secondary penetration cracks between en-echelon rock joints. The research provides valuable insights into understanding the failure mechanism of rock with en-echelon joints.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3232-3250"},"PeriodicalIF":3.6,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144577917","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

DEM Models of Toyoura Sand Under Various Cyclic Loading Paths From Direct Considerations of Shape and Fabric 基于形状和结构直接考虑的不同循环加载路径下的托尤拉砂的DEM模型

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-03 DOI: 10.1002/nag.70012

Tarek Mohamed, Jérôme Duriez, Guillaume Veylon, Laurent Peyras

{"title":"DEM Models of Toyoura Sand Under Various Cyclic Loading Paths From Direct Considerations of Shape and Fabric","authors":"Tarek Mohamed, Jérôme Duriez, Guillaume Veylon, Laurent Peyras","doi":"10.1002/nag.70012","DOIUrl":"10.1002/nag.70012","url":null,"abstract":"<div>\u0000 \u0000 <p>Accurately matching discrete element model (DEM) simulations with experimental data under various loading paths, including cyclic tests, remains a significant challenge. In this study, two 3D-DEM models with different grain shape descriptions (either irregular polyhedra or spheres) are employed to reproduce the cyclic behavior of Toyoura sand. The DEM samples are prepared using a specific technique to mimic the air-pluviation method used in laboratory tests. Both DEM models were calibrated and validated using various monotonic tests in a previous study before being applied to cyclic tests for further validation. Various cyclic stress paths are tested, including drained cyclic constant-pressure triaxial, undrained cyclic triaxial, and undrained simple shear tests. The results demonstrate that both particle shapes and fabric initial anisotropy are two crucial factors for accurately reproducing the cyclic behavior of soils. The simulation results of different cyclic tests using the polyhedral DEM model show remarkable agreement with the corresponding experimental data for Toyoura sand, not only in terms of the number of cycles required for liquefaction, but also in terms of qualitative evolution at different stages of the tests. However, less efficient prediction is observed for the spherical DEM model.</p></div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3202-3213"},"PeriodicalIF":3.6,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546924","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

Seismic Bearing Capacity of Shallow Foundations in Anisotropic Non-Homogeneous Soils Under Torsional Waves and Parameter Uncertainty 扭波和参数不确定性作用下各向异性非均匀土浅基础抗震承载力研究

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-03 DOI: 10.1002/nag.70007

Faiçal Bendriss, Zamila Harichane, Arnaud Mesgouez

{"title":"Seismic Bearing Capacity of Shallow Foundations in Anisotropic Non-Homogeneous Soils Under Torsional Waves and Parameter Uncertainty","authors":"Faiçal Bendriss, Zamila Harichane, Arnaud Mesgouez","doi":"10.1002/nag.70007","DOIUrl":"10.1002/nag.70007","url":null,"abstract":"<p>The purpose of the present paper is to investigate the effects of the torsional wave propagation and the soil-earthquake parameter uncertainties on the seismic bearing capacity of shallow foundations in anisotropic non-homogeneous media. A mathematical model of the equivalent seismic bearing capacity factor is derived using the limit equilibrium method with the consideration of the Coulomb failure mechanism. The pseudo-dynamic approach is followed to incorporate the seismic component. A parametric study is carried out showing the impact of the soil parameters, the soil anisotropy, the soil non-homogeneity and the seismic excitation on the seismic bearing capacity factor. The results show that the torsional wave parameters (acceleration coefficient and wavelength) have a significant impact traduced in a decrease in the seismic bearing capacity factor. Furthermore, an increase in the anisotropy of the soil parameters causes a decrease in the seismic bearing capacity factor while an increase in the non-homogeneity of the soil parameters causes an increase in the seismic bearing capacity factor. A reliability analysis, using the Latin Hypercube Sampling method, is also carried out with the aim to incorporate the uncertainties around the main soil and earthquake parameters that govern the seismic bearing capacity of shallow foundations. It is found that the statistical moments and the failure probability of the seismic bearing capacity factor are more influenced by the friction angle uncertainties than by the seismic acceleration coefficient uncertainties. Moreover, the anisotropy and non-homogeneity of soil parameters exert a significant effect on the statistical moments and probabilistic results.</p>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3170-3201"},"PeriodicalIF":3.6,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/nag.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546922","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

A Constitutive Model Allowing for Particle Size-Shape Coevolution 允许颗粒尺寸-形状协同进化的本构模型

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-02 DOI: 10.1002/nag.70009

Divyanshu Lal, Giuseppe Buscarnera

{"title":"A Constitutive Model Allowing for Particle Size-Shape Coevolution","authors":"Divyanshu Lal, Giuseppe Buscarnera","doi":"10.1002/nag.70009","DOIUrl":"10.1002/nag.70009","url":null,"abstract":"<p>This paper presents a constitutive model developed within the Continuum Breakage Mechanics (CBM) framework. The proposed model explicitly accounts for particle shape evolution during the compression of crushable granular materials. Most importantly, the proposed formulation includes a novel expression of the dissipation function that enables a versatile definition of the rate of particle shape evolution during crushing. It is shown that this approach overcomes the limitations of previous formulations by relaxing the constraints that restricted the viable range of the coevolution constants, thus allowing for better alignment with the shape evolution trends observed in crushable granular materials. Additionally, the framework extends its capability to simulate more general loading conditions beyond isotropic compression, thus broadening its practical applicability. The model is validated against synthetic data obtained with a level set discrete element model (LS-DEM) able to resolve complex particle shapes and their evolution. The results demonstrate the promising performance of the model in capturing the compression behavior of crushable granular materials.</p>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3123-3136"},"PeriodicalIF":3.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/nag.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533222","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

A Fast Convolution-Based Peridynamics for Rock Fracture Under Compressive Load 压缩载荷作用下岩石断裂的快速卷积动力学研究

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-02 DOI: 10.1002/nag.70005

Xingchuan Liao, Jian Zhou, Peiyu Wang, Fushen Liu, Yongjie Qi, Xiaonan Shang

{"title":"A Fast Convolution-Based Peridynamics for Rock Fracture Under Compressive Load","authors":"Xingchuan Liao, Jian Zhou, Peiyu Wang, Fushen Liu, Yongjie Qi, Xiaonan Shang","doi":"10.1002/nag.70005","DOIUrl":"10.1002/nag.70005","url":null,"abstract":"<div>\u0000 \u0000 <p>The fast convolution-based method for peridynamics (FCBM-PD) is an efficient approach for solving fracture propagation problems. However, current FCBM-PD method fails to distinguish between tensile and compressive strains at material points, limiting its capability to accurately simulate fracture propagation under compressive loading. To address this issue, the spectral decomposition method is employed to obtain strain invariants, and tensile strains are extracted by using strain decomposition. By utilizing the separated tensile strains, a bond failure criterion is reconstructed, resulting in a damage model capable of capturing the tension-compression asymmetry of geomaterials. Additionally, an initial integrity factor is introduced to correct unrealistic damage values near the initial fracture faces, which arise even in the absence of fracture propagation. A modulus reduction technique borrowed from traditional damage mechanics is applied to mitigate the influence of surface effects on fracture propagation. The FCBM-PD method is extended for the first time to address compressive loading scenarios and validated by experimental data from a central-initial fractured sandstone specimen under uniaxial loading. A comparison of computation time and memory requirements between FCBM-PD and traditional peridynamics (PD) methods demonstrates that the proposed method significantly reduces computational cost. To further demonstrate the performance of the proposed method, five additional numerical examples on rock fracture under compressive loading are presented, confirming that the proposed FCBM-PD method can effectively simulate rock fracture initiation and propagation under compression, and therefore, showing potential for large-scale geotechnical engineering problems.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3103-3122"},"PeriodicalIF":3.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144547108","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

Three-Dimensional Energy-Driven Cellular Automata Method for Simulation of Energy Evolution in Rock Materials Under Uniaxial Compression 单轴压缩下岩石材料能量演化的三维能量驱动元胞自动机模拟方法

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-02 DOI: 10.1002/nag.70013

Xiao Wang, Gaoshuo Zhang, Wenxin Li, Changdi He, Chenhao Zhang

{"title":"Three-Dimensional Energy-Driven Cellular Automata Method for Simulation of Energy Evolution in Rock Materials Under Uniaxial Compression","authors":"Xiao Wang, Gaoshuo Zhang, Wenxin Li, Changdi He, Chenhao Zhang","doi":"10.1002/nag.70013","DOIUrl":"10.1002/nag.70013","url":null,"abstract":"<div>\u0000 \u0000 <p>Analyzing the energy evolution of rock under uniaxial compression is crucial for understanding the mechanics of rock failure. Previous studies have investigated the changes in different energy components during cyclic loading and unloading uniaxial compression strength (CLU-UCS) tests by applying multiple loading and unloading cycles at various stress levels. However, increasing the number of cycles in CLU-UCS tests for energy evolution analysis may cause cumulative damage to rock specimens. Although several numerical simulation methods have been applied in recent years to analyze energy evolution of rock, they typically require high computational costs. To accurately and efficiently capture the energy evolution under uniaxial compression, a three-dimensional energy-driven cellular automata (EDCA3D) method has been proposed in this study. This EDCA3D method can effectively track the evolution of elastic strain energy, plastic strain energy, dissipated energy, and released energy throughout the rock failure process under uniaxial compression based on a single loading stress–strain curve. To validate the effectiveness of the proposed method, an EDCA3D model is developed to simulate the energy evolution of granite specimens. The results show that the simulated energy evolution aligns well with observations from CLU-UCS tests.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3154-3169"},"PeriodicalIF":3.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546926","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

Integration of Physics-Based and Data-Driven Approaches for Landslide Susceptibility Assessment 基于物理和数据驱动的滑坡易感性评估方法的集成

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-02 DOI: 10.1002/nag.4016

Yi Han, Shabnam J. Semnani

{"title":"Integration of Physics-Based and Data-Driven Approaches for Landslide Susceptibility Assessment","authors":"Yi Han, Shabnam J. Semnani","doi":"10.1002/nag.4016","DOIUrl":"10.1002/nag.4016","url":null,"abstract":"<p>Rainfall-triggered landslides pose a significant threat to communities and infrastructure around the world. Various data-driven and machine learning (ML) based algorithms have been applied to assess landslide susceptibility. However, purely data-driven methods are affected by issues such as uncertainty in the selection of landslide conditioning factors, potential extrapolation problem, as well as the quantity and quality of historical landslide datasets. On the other hand, physics-based models require soil properties and initial/boundary conditions which are difficult to obtain. In this work, we develop an enhanced methodology for landslide susceptibility assessment by integrating physics-based and data-driven models. For this purpose, Transient Rainfall Infiltration and Grid-Based Regional Slope-Stability (TRIGRS) and the shallow slope stability (SHALSTAB) physics-based models are adopted which provide important insights into the geological and hydrological characteristics of the study area. For the data-driven approach, XGBoost is implemented due to its demonstrated effectiveness in landslide predictions. We propose two strategies for integrating the physics-based and data-driven models: (1) physics-informed machine learning (PIML) which incorporates outputs of TRIGRS and SHALSTAB into the ML models, and (2) a matrix approach for combining data-driven susceptibility maps with factor of safety maps. We evaluate the overall performance of models based on three aspects: general prediction capability, data efficiency, and extrapolation. Subsequently, landslide susceptibility maps of California are generated and compared using the PIML model, the data-driven model, and the matrix approach. The results indicate a substantial enhancement in landslide susceptibility mapping, extrapolation capability and model performance, particularly when limited data is available.</p>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 13","pages":"3060-3097"},"PeriodicalIF":3.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/nag.4016","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144533244","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

Computations of Cone Penetration Resistance in Undrained Clay Incorporating a Full-Strain-Range Non-Linear Model 基于全应变范围非线性模型的不排水粘土中锥突阻力计算

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-07-02 DOI: 10.1002/nag.70010

Junlin Zhu, Maosong Huang, Jian Yu, Kanmin Shen, Yifeng Lin

{"title":"Computations of Cone Penetration Resistance in Undrained Clay Incorporating a Full-Strain-Range Non-Linear Model","authors":"Junlin Zhu, Maosong Huang, Jian Yu, Kanmin Shen, Yifeng Lin","doi":"10.1002/nag.70010","DOIUrl":"10.1002/nag.70010","url":null,"abstract":"<div>\u0000 \u0000 <p>Cone penetration test (CPT) and cavity expansion are widely used to investigate and interpret in-situ soil properties. Current research typically treats clay as an elastic-perfectly plastic material and ignores the nonlinear stress-strain behavior of clays. This study proposes a small-strain elastoplastic model to characterize the nonlinear degradation of small-strain stiffness before yielding and subsequent nonlinear plastic hardening. Large deformation finite element analysis employing the Arbitrary Lagrangian-Eulerian technique is performed to simulate cone penetration in undrained clay, aiming to validate the applicability of the presented constitutive model against centrifuge tests. Numerical analyses reveal that both full-strain-range nonlinearity and small-strain elasticity significantly influence cone tip resistance. Specifically, the cone factor increases with the small-strain shear modulus and the threshold shear strain but decreases with the soil failure ratio. Compared to results based on the elastic-perfectly plastic assumption, incorporating soil nonlinear behavior reduces the cone factor and alters the effect of in-situ stress ratio on the cone factor. A semi-analytical solution of cavity expansion is derived based on the small-strain model, providing a closed-form formula to evaluate the bearing capacity factor of spherical cavity expansion. A novel parallel relationship is identified between the cone factor and the spherical cavity-bearing capacity factor. A corresponding evaluation method for the cone factors is established, and its validity is confirmed through comparative analysis with field tests. This study highlights the significant influence of accounting for the nonlinear stiffness of clay across its full strain range.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 14","pages":"3137-3153"},"PeriodicalIF":3.6,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546925","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

Molecular Dynamics Simulation and Lab-Scale Experimental Testing of Water Migration in Unsaturated Expansive Clay 非饱和膨胀粘土中水运移的分子动力学模拟及实验室规模实验测试

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-06-28 DOI: 10.1002/nag.70004

Qiuyan Liu, Liuqun Dong, Genli Tang

{"title":"Molecular Dynamics Simulation and Lab-Scale Experimental Testing of Water Migration in Unsaturated Expansive Clay","authors":"Qiuyan Liu, Liuqun Dong, Genli Tang","doi":"10.1002/nag.70004","DOIUrl":"10.1002/nag.70004","url":null,"abstract":"<div>\u0000 \u0000 <p>The mechanical performances of expansive clay in semi-arid areas deteriorate with the change in humidity and temperature due to its characteristics of water-swelling and drying shrinkage. So, investigating the moisture migration in expansive clays is of great significance. This study employs molecular dynamics (MD) simulations to elucidate microscale water transport mechanisms in clay mineral pores, complemented by experimental validation using a novel horizontal migration apparatus across temperature gradients (5°C, 20°C, 40°C). Quantitative analysis reveals that temperature significantly influenced water migration, with the migration rates at 5°C and 20°C accounting for approximately 30% to 60% of the rate observed at 40°C. Based on the MD simulation results obtained, a modified Kozeny–Carman equation is presented to simulate the hydraulic conductivity at various temperatures. The microscopic flow behavior of clay minerals was compared with the macroscopic characteristics of clay. The results demonstrate that hydraulic conductivity varies non-linearly with changes in matric suction. Under the same matric suction, the computed hydraulic conductivity obtained from MD is higher than that of the experimental simulation. The arrangement and connectivity of soil pores at a higher suction have a more pronounced impact on soil permeability. These results elucidate the moisture migration mechanisms in unsaturated expansive clay at the microscale.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 13","pages":"3048-3059"},"PeriodicalIF":3.6,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513146","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

Three-Dimensional Seismic Response Analysis of Tunnels in Layered Media Using Modified Domain Reduction Method 层状介质中隧道三维地震反应的修正域约简分析

IF 3.6 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2025-06-27 DOI: 10.1002/nag.70006

Bhavesh Banjare, Gauri Ranjan Krishna Chand Avatar, Goudappa Ramanagouda Dodagoudar

{"title":"Three-Dimensional Seismic Response Analysis of Tunnels in Layered Media Using Modified Domain Reduction Method","authors":"Bhavesh Banjare, Gauri Ranjan Krishna Chand Avatar, Goudappa Ramanagouda Dodagoudar","doi":"10.1002/nag.70006","DOIUrl":"10.1002/nag.70006","url":null,"abstract":"<div>\u0000 \u0000 <p>Fault inclination and complex geological soil features significantly impact the seismic response of underground unlined tunnels. Modeling fault rupture mechanisms necessitates spanning the computational domain over several kilometers, thus making the approach computationally inefficient. In this study, an efficient modeling algorithm, named as multi-layer Modified Domain Reduction Method (MDRM), has been proposed to analyze the Soil-Fault-Tunnel (SFT) system in layered soil media. The study has demonstrated the effectiveness of the MDRM for modeling the SFT system in layered soil media, considering the seismic source, wave propagation path, and local site effects for realistic seismic response assessment of the tunnels. The MDRM algorithm is implemented in an open-source finite element package, MASTODON (Multi-hazard Analysis for STOchastic time-DOmaiN phenomena), based on the MOOSE numerical framework. Using the MDRM approach, parametric simulations for four different fault rupture mechanisms and three distinct tunnel cross-sections (all having the same opening area) are being performed to capture the overall seismic response of the tunnels. The results provide insights into the influence of fault inclination angle, surface wave generation, and local site effects on the response. The transfer function profiles for the considered soil layers are contrasted, and their influence on different tunnel cross-sections is investigated. The findings are useful in the efficient and reliable design of underground tunnels in multi-layered media subjected to different fault rupture mechanisms.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 13","pages":"3027-3047"},"PeriodicalIF":3.6,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144500766","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