Article
Engineering, Multidisciplinary
Mei Tao, Qingwen Ren, Hanbing Bian, Maosen Cao, Yun Jia
Summary: This study proposes a mesoscopic numerical simulation method for studying the mechanical behavior of soil-rock mixture (SRM). The results of triaxial compression tests verify the effectiveness and rationality of the proposed method, and show that rock blocks can enhance the strength of SRM. The study also reveals the presence of multiple failure surfaces in the inhomogeneous SRM.
CMES-COMPUTER MODELING IN ENGINEERING & SCIENCES
(2022)
Article
Engineering, Multidisciplinary
Guanhua Sun, Wei Wang, Lu Shi
Summary: The NMM is widely used in engineering problems involving moving boundaries and has been further developed for steady seepage problems. Through the introduction of new procedures and examples, the accuracy and capabilities of the numerical model for steady seepage problems have been verified.
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
(2021)
Article
Computer Science, Interdisciplinary Applications
Zejiao Dong, Weiwen Quan, Xianyong Ma, Xinkai Li, Jie Zhou
Summary: This study proposes an efficient algorithm for generating the concrete mesoscopic model with differently shaped aggregates and imperfect interfaces, and develops an asymptotic homogenization software platform for predicting the effective thermal-elastic properties of concrete by extending the thermal-stress method to the coefficients of thermal expansion (CTE) homogenization. The results show that the imperfect interfaces, aggregate types, aggregate gradation, voids, and aggregate orientation have varying degrees of effect on the thermal-elastic properties of concrete. The effect of aggregate morphology can be neglected.
COMPUTERS & STRUCTURES
(2023)
Article
Mathematics
Peichen Cai, Xuesong Mao, Ke Lou, Zhihui Yun
Summary: This paper simulated the seepage characteristics of a soil-rock mixture (SRM) at different sizes using the improved Monte Carlo method and the lattice Boltzmann method. Through 342 simulation experiments, it was found that the permeability of the SRM gradually increased with an increase in resolution (R) and tended to stabilize at R = 60 ppi. The dispersion degree of the model permeability obtained by different segmentation types followed the order of center < random < equal < top at the same model feature size (S), and the permeability gradually decreased with an increase in S and stabilized at S = 80 mm.
Article
Mathematics, Applied
Tanja Lochner, Malte A. Peter
Summary: This paper considers the upscaled linear elasticity problem in the context of periodic homogenization. The goal is to deduce information on the geometry of the microstructure based on measurements of the deformation of the macroscopic boundary for a given forcing. The paper proves the existence of at least one solution of the associated minimization problem for a parametrized microstructure.
MATHEMATICAL METHODS IN THE APPLIED SCIENCES
(2023)
Article
Computer Science, Interdisciplinary Applications
Lianheng Zhao, Nan Qiao, Dongliang Huang, Shi Zuo, Zijian Zhang
Summary: This study proposes a new technique for accurately analyzing the large-deformation failure mechanisms of soil-rock mixture slopes. The contours of natural rock blocks are obtained through digital image processing, and then analyzed and reconstructed using the discrete Fourier transform theory. Discrete models of soil-rock mixture slopes for MPM are constructed by combining the stochastic placement algorithm with digital image processing. The influences of the content, size, and morphology of rock blocks on the failure mechanisms of the slopes are investigated in detail.
COMPUTERS AND GEOTECHNICS
(2022)
Article
Chemistry, Multidisciplinary
Hongwei Deng, Bokun Zhao, Yigai Xiao, Guanglin Tian
Summary: This study investigates the response characteristics and mechanical performance changes of soil-rock mixture under freeze-thaw cycles. The results show that as the number of freeze-thaw cycles increases, the number of mesopores gradually increases, and the uniaxial compressive strength and peak secant modulus exhibit exponential increases. The failure mode and crack types are basically similar.
APPLIED SCIENCES-BASEL
(2023)
Article
Engineering, Manufacturing
Joseph Paux, Geoffrey Ginoux, Shyam Pulickan, Samir Allaoui
Summary: The paper investigates the mesostructure of materials manufactured by additive manufacturing processes based on extrusion of polymer. It proposes a new method to extract a 3D Representative Volume Element (RVE) and performs a numerical homogenization to determine the macroscopic properties of the printed material. The study shows that the variation of the mesostructure induced by printing conditions significantly influences the rigidity of the material.
ADDITIVE MANUFACTURING
(2023)
Article
Construction & Building Technology
Ting Liang, Feng Jin, Duruo Huang, Gang Wang
Summary: This study models rock-filled concrete using a mesoscopic finite element approach, revealing the evolution of its elastic modulus and providing important research results to fill the gaps in RFC research in the numerical computational field.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Chemistry, Physical
Wenwei Gao, Hairong Yang, Le Wang, Ruilin Hu
Summary: Through numerical simulations and experimental studies, this paper finds that as the rock block proportion increases, the peak strength of the soil-rock mixtures increases, the fluctuations of the post-peak become more obvious, and the dilatancy of the sample increases. The width of the shear band increases, the distribution of cracks becomes more complex and dispersed, and the range of the shear zone increases. The number of rock blocks with rotation also increases significantly, with rotation angles mostly between -5 degrees and 5 degrees; the strain energy of S-RMs with different rock block proportions follows the same change rule as axial strain, showing a trend of first increasing and then decreasing, like the stress-strain curve.
Article
Environmental Sciences
Hao Zhang, Hao-feng Xing, Dao-rui Xue, Dwayne Tannant
Summary: Due to the loose structure, high porosity, and high permeability of soil-rock mixture slope, the slope is unstable and may cause significant economic losses and casualties. The h-type anti-slide pile is considered as an effective solution to prevent the instability of such slopes. This paper presents a centrifuge model test to examine the stress distribution of the h-type anti-slide pile and the soil arching evolution during loading. A numerical simulation model is also developed to investigate the influence factors and provide recommendations for practical application. The results reveal distinctive bending moment distributions for the rear and front piles, gradual dissipation of soil arching during loading, and three stages of bending moment change. Recommended values for pile spacing, anchored depth, and crossbeam stiffness in engineering projects are proposed as 4.0d, 2.0d, and 2.0EI, respectively.
JOURNAL OF MOUNTAIN SCIENCE
(2023)
Article
Mechanics
Phuong H. Nguyen, Canh Le, Phuc L. H. Ho
Summary: An efficient computational approach is proposed in this paper to evaluate the macroscopic fatigue domain of anisotropic heterogeneous materials under variable repeated loads. The effects of various factors on the overall fatigue domains are studied, and it is shown that the Poisson coefficient does not affect the macroscopic fatigue criterion in 2D analysis.
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
(2022)
Article
Mathematics, Interdisciplinary Applications
Zhengsheng Li, Haiyang Yi, Cheng Zhu, Zhuang Zhuo, Guoshuan Liu
Summary: This study proposes a new method for randomly generating the mesostructure of soil-rock mixtures (SRMs) based on in situ digital image processing. The results of a parametric study indicate that the rock content and particle shape have an effect on the fractal dimension of the generated mesostructures.
FRACTAL AND FRACTIONAL
(2022)
Article
Computer Science, Interdisciplinary Applications
Yang Ding, Qiang Lu, Fangyun Lu, Jin Li
Summary: The wave velocity of Soil-Rock Mixture (SRM) is a crucial indicator for analyzing seismic effects of natural SRM sites and evaluating the quality of artificial SRM projects. By establishing a ternary mesoscale model of SRM and utilizing 2D FEM code, the compression wave velocity determination mechanism of SRM was clarified. Different contact models, including ideal contact, ITZ contact, and cracked contact, were used to characterize Soil-Rock Interfaces (SRI). The influence of ITZ and crack on wave velocity under non-ideal contact conditions was explained, and the competition mechanism of macro parameters such as rock content on wave velocity was further clarified.
COMPUTERS AND GEOTECHNICS
(2023)
Article
Geochemistry & Geophysics
Shuna Chen, Xiaotao Wen, Igor B. Morozov, Wubing Deng, Zhege Liu
Summary: Wave-induced pore-fluid flows can cause seismic-wave attenuation in rocks below 1 kHz. By using Lagrangian continuum mechanics, these flows can be classified into three types based on material properties, providing a way to predict rock properties and invert for non-Biot's material properties. The ambiguity in inversion shows that different types of wave-induced pore-fluid flows cannot be differentiated in conventional experiments, but they are meaningful for rock deformation equations and applications.
GEOPHYSICAL PROSPECTING
(2021)
Article
Engineering, Civil
Susheng Wang, Huanling Wang, Weiya Xu, Ming Cai
Summary: A series of tests were conducted to investigate the mechanical behavior of rock under different loading conditions. The results show that lateral deformation is more sensitive than axial deformation under unloading process. Based on experimental data, a coupled elasto-plastic damage model was proposed, which successfully described the main mechanical behaviors of the rock under complex loading conditions.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2022)
Article
Engineering, Civil
Huanling Wang, Kai Zhao, Xiao Qu, Jianrong Xu, Ming Cai
Summary: This study investigates the hydro-mechanical properties of rock-like materials with intermittent joints under different confining and hydraulic pressures. The results show that the strength, permeability, and deformation properties of the specimens were influenced by hydraulic pressure, and the evolution of permeability is closely correlated with the development of joints and cracks within the specimen.
EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
(2023)
Article
Engineering, Geological
Hossein Rafiei Renani, Ming Cai
Summary: The Hoek-Brown failure criterion is widely used for estimating rock mass strength by integrating intact rock properties and geological characteristics. Strength degradation relations play a key role in downgrading intact rock strength to estimate rock mass strength. Despite the relative simplicity of determining intact rock properties from laboratory tests, quantifying geological characteristics remains challenging. Understanding the basis and development of the Hoek-Brown failure criterion is crucial for its proper use.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Geological
Mingzheng Wang, Ming Cai
Summary: A new creep model was developed to simulate time-dependent responses of jointed rock mass, and its implementation in UDEC demonstrated the influence of joint properties on the long-term stability of rock masses. A case study of a high rock slope in western Norway analyzed the creep deformation mechanisms of the rock mass and found no unstable movement on potential sliding surfaces. The proposed creep model provides a novel approach to analyze structural failures of jointed rock mass under creep loading conditions.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Geological
P. Y. Hou, M. Cai, X. W. Zhang, X. T. Feng
Summary: The study systematically analyzed the effects of axial- and lateral-strain-controlled loadings on the strength and post-peak deformation behaviors of brittle rocks. Different rock types showed varying responses under these loading conditions, with higher peak strength and lower residual strength observed under axial-strain-controlled loading. The unloading of the actuator in response to the servo-control system to maintain a constant lateral strain rate was identified as a key factor causing Class II post-peak stress-strain curves during lateral-strain-controlled loading.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Haijun Wang, Lei Tang, Shuyang Yu, Qingxiang Meng
Summary: The behavioral characteristics of multiple cracks are important factors leading to material failures. This study investigated the fracturing processes and interactions between two parallel internal cracks under tensile stress conditions using both experimental and numerical simulation methods. The results showed that the crack spacing is an important factor affecting the crack interactions and failure loads.
Article
Engineering, Geological
Chun Zhu, Murat Karakus, Manchao He, Qingxiang Meng, Junlong Shang, Yu Wang, Qian Yin
Summary: Multistage constant-amplitude cyclic loading experiments were conducted on Tibet interbedded skarn to investigate the fatigue mechanical behavior of the rock. The results showed that the volumetric deformation and damage evolution of the skarn were influenced by the interbed structure. A new damage evolution model was proposed and different fracture mechanisms were identified through macroscopic failure morphology analysis.
INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
(2022)
Article
Engineering, Geological
P. Y. Hou, M. Cai
Summary: This study systematically explores the influence of Loading Environment System Stiffness (LESS) on post-peak stress-strain curves and failure modes of brittle hard rocks. The results show that lower LESS leads to steeper post-peak descending slopes of stress-strain curves, while higher LESS results in gentler slopes. Additionally, as LESS increases, AE events transition from a concentrated distribution near peak strength to a dispersed distribution throughout the post-peak deformation stage. The number of splitting macrocracks and the degree of damage decrease with increasing LESS, indicating a more stable post-peak failure process. The study also analyzes the mechanism behind the different post-peak descending slopes under different LESS through the variations of axial stress, axial and lateral strains, rates of axial and lateral strains over time. Fitting formulas relating LESS to the post-peak deformation modulus are established, and the importance of considering LESS for accurate parameters in rock engineering design and analysis is discussed.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Engineering, Geological
Mingzheng Wang, Ming Cai
Summary: By investigating the time-dependent deformation behaviors of tunnels excavated in jointed rock masses, this study validates the effectiveness of a creep model implemented in distinct-element method code. The simulation results align with field data, and the weakening of rock mass simulated using the internal pressure reduction method is validated as well.
ROCK MECHANICS AND ROCK ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Chao Zhang, Qingxiang Meng, Cheng Li
Summary: This article introduces a curvelet-based joint waveform and envelope inversion (CJWEI) method for imaging near-surface structures. By inverting two types of data, this method efficiently recovers low- and high-wavenumber structures and mitigates the cycle-skipping problem. Synthetic tests and real data applications demonstrate the effectiveness and robustness of this method in constraining anomalies and hidden layers in shallow structures.
Article
Geochemistry & Geophysics
Kun Qian, Qiang Zhang, Qingxiang Meng, Qian Yin, Chun Zhu, Hangtian Song
Summary: This paper proposes a novel rigid block discrete element method (RB-DEM) to simulate the transversely isotropic rock mass, which accurately describes the contact on the laminar joints and produces consistent results with laboratory tests.
Article
Engineering, Mechanical
Qingxiang Meng, Haoyu Xue, Hangtian Song, Xiaoying Zhuang, Timon Rabczuk
Summary: This work proposes a novel rigid-block discrete-element method (RB-DEM) to simulate concrete with random mesoscale structure. The results of uniaxial compression using RB-DEM showed satisfactory agreement with experimental data. RB-DEM not only demonstrates good performance in simulation but also is easy to use. It can be built from any finite-element mesh generator, whether open source codes or commercial software. The effects of ITZ parameters, aggregate volume fraction, and geometric shape on stress-strain curve and crack propagation are discussed. This work provides a novel and efficient tool for mesoscale fracture simulation of concretelike material with the relatively large time-step of DEM.
JOURNAL OF ENGINEERING MECHANICS
(2023)
Article
Engineering, Geological
P. Y. Hou, M. Cai
Summary: Understanding the strength and deformation behaviors of rock is crucial for rock engineering design and analysis. Experimental studies have shown that confining pressure and plastic strain have significant influences on the post-peak strength and deformation characteristics of rock. A modified Hoek-Brown model has been proposed to describe the plastic-strain-dependent post-peak strength of rock.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Geochemistry & Geophysics
Guo-jin Zhu, Yu Ning, Zhi-hao Cui, Nanxiang Hu, Qing-xiang Meng, Chun Zhu
Summary: In this study, a combined approach of anisotropic random field and GPU-accelerated Cholesky decomposition algorithm is proposed for diversion tunnel excavation. By leveraging the advantages of GPU and CPU computing through MATLAB programming control, an efficient method for generating large numerical model random fields is achieved. The simulation results based on the geological structure characteristics of red-layered soft rocks in central Yunnan show that the variability of rotational anisotropy random fields and mechanical parameters significantly influence the deformation and stress state of the tunnel excavation face's surrounding rocks. This study provides theoretical and technical support for the design and construction of relevant rock engineering in the red-layered soft rock area in central Yunnan.
Article
Engineering, Geological
Zhengming Yang, Shuai Xu, Hao Zhang, Wenzhi Guo, Ming Cai
Summary: A new rockbolt called 2S-bolt has been developed for rock support in deep underground engineering. It consists of a threadbar, sliding piston, sliding-resistance cone pipe, anchorage section, plate, and plate-nut. The bolt's deformation occurs through frictional sliding and steel stretching in different deformation stages. Laboratory studies and pull-out tests were conducted to evaluate the performance of the bolt. The results showed that the 2S-bolt could absorb a large amount of energy at higher load capacities, making it suitable for rock support in rockbursting and squeezing grounds.
ROCK MECHANICS AND ROCK ENGINEERING
(2023)
Article
Computer Science, Interdisciplinary Applications
Yinghao Deng, Yang Xia, Di Wang, Yan Jin
Summary: This study investigates the mechanism of hydraulic fracture propagation in laminated shale, develops a numerical solver, and validates the effectiveness of the method through simulation experiments. The study also examines the influence of the interaction between hydraulic fractures and weak interfaces on the mechanical properties of shale.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhichao Zhang, Mingfei Feng, Guangshuo Zhou, Zhenglong Xu
Summary: A thermodynamic constitutive model for structured and destructured clays is proposed in this paper. The model includes state-dependent relations of hyperelasticity and plasticity without the concept of yielding surface. The proposed model captures the couplings between elasticity and plasticity and the effects of bonding structure.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Deze Yang, Xihua Chu
Summary: Creep and stress relaxation behaviors in granular materials are influenced by the time-dependent changes in their microstructure, with particle shape playing a significant role. However, the effects of particle shape on these behaviors are still not well understood. In this study, 3D DEM models incorporating the rate process theory and superellipsoids are used to simulate creep and stress relaxation in granular samples with different aspect ratios and blockiness. The results show that both aspect ratio and blockiness have a significant influence on creep and stress relaxation, with aspect ratio affecting creep through contact force ratio and blockiness affecting stress relaxation through variation in normal contact force anisotropy. These findings provide insights into the effects of particle shape on creep and stress relaxation in granular assemblies.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shahab Amanat, Kourosh Gholami, Reza Rafiee-Dehkharghani, Dipanshu Bansal
Summary: This paper investigates the optimal design of wave barriers using the modified non-dominated sorting genetic algorithm-II (NSGA-II) and the Bloch-Floquet theory. The aim is to find the optimal design of plane wave barriers with a wide bandgap at a low-frequency range and low construction cost. The study develops a modified NSGA-II algorithm to determine the optimal arrangement of concrete in wave barrier unit cells. The performance of the optimal barriers is examined through finite element simulation and their efficacy in attenuating plane S-waves is verified.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Yanlin Su, Guoqing Cai, Fengjie Yin, Yepeng Shan, Annan Zhou
Summary: This paper presents a novel elastic-viscoplastic constitutive model that takes into account particle breakage to reproduce the time-dependent behavior of coarse-grained soil. The model integrates the Unified Hardening (UH) model, the elastic-viscoplastic (EVP) model, and the overstress theory. The relationship between particle breakage and loading rate is established, and state variables associated with the critical state of coarse-grained soil are derived to consider both time and particle breakage. A three-dimensional elastic-viscoplastic constitutive model is constructed by combining a one-dimensional viscoplastic hardening parameter with a secondary consolidation coefficient considering particle breakage. The proposed model requires 19 parameters and effectively describes the influence of time-dependency and particle breakage on the shear, dilatancy, and compression behaviors of coarse-grained soil with different confining pressures or initial void ratios. Experimental data comparisons validate the model's ability to replicate the time-dependent behavior of coarse-grained soil.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shichao Zhang, Yaqiong Wang, Qidong Gao, Xiaobo Ma, Haixiao Zhou, Zhifeng Wang
Summary: Accurately evaluating and predicting ground settlement during tunnel excavation is essential for ensuring tunnel stability. This study conducted a probabilistic analysis of ground settlement under uncertain soil properties. The results demonstrate that spatially variable soils significantly influence the ground settlement in the vertical direction.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Xu Zhang, Bin Luo, Youjun Xu, Zhiwen Yang
Summary: This paper presents an analytical solution for horizontal displacements induced by small radius curve shield tunneling. The formula is derived based on the image method and Mindlin solution, considering additional thrust, frictional resistance, ground loss, and grouting pressure. The solution is validated with on-site data, demonstrating its reliability and providing a new approach for predicting and controlling stratum horizontal displacements in curve shield tunneling. The study finds that ground loss has the most significant influence on displacements, and soil closer to the tunnel exhibits larger horizontal displacements.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Jian-Hong Wan, Ali Zaoui
Summary: Ground vibrations during earthquakes can cause soil strength loss and structural damage. Rubber-soil mixtures (RSM) have shown promise in reducing residual ground deformation. This study used molecular dynamics simulations to investigate the friction behavior of the rubber-clay interface in RSM systems. The results revealed a direct correlation between normal stress and friction force, with denser soil systems exhibiting higher friction forces.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Hongying Wang, Qiang Zhang, Peinan Wu, Yanjing Li, Lijun Han, Guilei Han
Summary: In addition to the Mohr-Coulomb and Hoek-Brown criteria, other nonlinear functions are used to describe the plastic response of rock mass. This paper derived the equivalent cohesive strength, frictional angle, and dilatancy angle for nonlinear yield and plastic flow rock masses. The solution for a circular tunnel in any nonlinear yield and plastic flow rock masses was derived and verified using a numerical procedure. The analysis of strain-softening rock masses under two assumed nonlinear yield criteria was also studied.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Zhijun Wu, You Wu, Lei Weng, Mengyi Li, Zhiyang Wang, Zhaofei Chu
Summary: This study proposed a machine learning approach to predict the uniaxial compression strength (UCS) and elastic modulus (E) of rocks. By measuring meso-mechanical parameters and developing grain-based models, a database with 225 groups of data was established for prediction models. The optimized kernel ridge regression (KRR) and gaussian process regression (GPR) models achieved excellent performance in predicting UCS and E.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Mingjun Zhou, Zhenming Shi, Chong Peng, Ming Peng, Kahlil Fredrick E. Cui, Bo Li, Limin Zhang, Gordon G. D. Zhou
Summary: In this paper, the erosion and deposition processes during overtopping dam breaching are simulated using a novel method (ED-SPH). The proposed model is able to capture the complex behaviors of dam soil erosion, entrainment, and depositions. Soil deposition hinders particle movement and reduces water velocity at the water-soil interface.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
C. Chavez-Negrete, F. J. Dominguez-Mota, R. Roman-Gutierrez
Summary: To accurately simulate groundwater flow in porous layered media, it is important to consider all environmental factors and use a generalized finite differences scheme as a meshless method for spatial discretization. This approach ensures robustness and accuracy of the numerical solution.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Shuairun Zhu, Lulu Zhang, Lizhou Wu, Lin Tan, Haolong Chen
Summary: This paper investigates the effectiveness of the cascadic multigrid method applied to the improved Picard iteration method for solving nonlinear problems in deforming variably saturated porous media. Two improved Picard iteration methods are proposed, and their effectiveness is verified through numerical examples. The results show that the improved methods have faster convergence and higher computational efficiency compared to the classical method.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Yuan Cao, Yan-Guo Zhou, Kyohei Ueda, Yun-Min Chen
Summary: Investigated shear stress responses of enclosed soil in deep soil mixing (DSM) grid-improved ground, and revealed the characteristics of the waist effect and mathematical model for shear stress reduction ratio.
COMPUTERS AND GEOTECHNICS
(2024)
Article
Computer Science, Interdisciplinary Applications
Jinfan Chen, Zhihong Zhao, Jintong Zhang
Summary: This study develops data-driven criteria to estimate the peak shear strength (PSS) of rock fractures, considering the effects of surface roughness features. A high-quality dataset is created using particle-based discrete element method and diamond-square algorithm. Tree-based models and convolutional neural network are trained to predict the PSS of rock fractures, and their reliability is verified using experimental data.
COMPUTERS AND GEOTECHNICS
(2024)
