International Journal for Numerical and Analytical Methods in Geomechanics最新文献_第6页

Macroscopic and Mesoscopic Damage Characteristics and Energy Evolution Laws of Rock Mass With Double Arcuate Fractures Under Uniaxial Compression 单轴压缩下双弓形裂隙岩体宏细观损伤特征及能量演化规律

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-11 DOI: 10.1002/nag.3917

Qingyang Ren, Senlin Gao, Songqiang Xiao, Xin Meng, Zhongyao Li

{"title":"Macroscopic and Mesoscopic Damage Characteristics and Energy Evolution Laws of Rock Mass With Double Arcuate Fractures Under Uniaxial Compression","authors":"Qingyang Ren, Senlin Gao, Songqiang Xiao, Xin Meng, Zhongyao Li","doi":"10.1002/nag.3917","DOIUrl":"10.1002/nag.3917","url":null,"abstract":"<div>\u0000 \u0000 <p>In order to reveal the influence of double arc-shaped fissure dip angles on the macro-micro failure and energy evolution laws of rock masses, a numerical model of red sandstone was firstly established using the PFC2D. Moreover, mesoscopic parameters of the numerical model were calibrated based on the uniaxial compression tests on intact and single straight fissure red sandstone specimens. Then, particle flow simulation tests of red sandstone with different arc-shaped fissure dip angles were carried out. The results show that the peak strength and elastic modulus both increase with the increase of arc-shaped fissure dip angle <i>α</i>, exhibiting an oblique shear-tensile failure pattern. Six types of cracks evolved during the instability and rupture of the rock mass with double arc-shaped fissures. The macroscopic fissures in the rock mass ultimately penetrate along the extension direction of the arc-shaped fissures. As the arc-shaped fissure dip angle <i>α</i> increases, the crack evolution is positively correlated with the acoustic emission (AE) of the specimen. When approaching instability failure, the AE ringing count rapidly increases. There is a critical angle limit inflection point for the total energy absorbed by the rock between 60° and 75°, with a total energy increase of about 54%. During instability failure, it is dominated by dissipative energy, with elastic energy as a supplement. This article derived a damage constitutive model of red sandstone with different arc-shaped fissure dip angles, revealing the damage laws of red sandstone under different arc-shaped fissure dip angles.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"1038-1057"},"PeriodicalIF":3.4,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809228","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

Theoretical Study on Consolidation of Slurry Treated by PHDs-VP Considering Clogging Effect and Vacuum Preloading Process 考虑堵塞效应和真空预压的ph - VP料浆固结理论研究

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-11 DOI: 10.1002/nag.3912

Kang Yang, Mengmeng Lu, Yuanjie Liu, Xueyu Geng, Zhiwei Ding

{"title":"Theoretical Study on Consolidation of Slurry Treated by PHDs-VP Considering Clogging Effect and Vacuum Preloading Process","authors":"Kang Yang, Mengmeng Lu, Yuanjie Liu, Xueyu Geng, Zhiwei Ding","doi":"10.1002/nag.3912","DOIUrl":"10.1002/nag.3912","url":null,"abstract":"<div>\u0000 \u0000 <p>Prefabricated horizontal drains combined with vacuum preloading (PHDs-VP) have addressed the shortcomings of prefabricated vertical drains combined with vacuum preloading (PVDs-VP), beginning to emerge as a popular method for dredged slurry treatment. However, theoretical research on PHDs-VP consolidation is relatively scarce. This study proposes a novel analytical model for predicting the consolidation behavior of the slurry treated by PHDs-VP. This model treats the PHDs layer as a continuous drainage layer. Analytical solutions considering the clogging effect and the vacuum preloading process have been derived. The correctness and applicability of the proposed model have been verified through degeneration analysis and comparison with laboratory experimental data. Subsequently, an in-depth sensitivity analysis of parameters has been conducted to assess the influence on consolidation. The research findings indicate that the clogging effect significantly reduces the consolidation rate, while the influence of the increasing rate in vacuum pressure is relatively minor. Additionally, increasing the slurry filling rate and the PHDs layout density can both accelerate soil consolidation. These findings offer significant guidance for the implementation of PHDs-VP method in engineering.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"1024-1037"},"PeriodicalIF":3.4,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809225","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

Cyclic Lateral Response of Large-Diameter Monopiles in Soft Clays Using Bounding Surface-Based Analytical p-y Curves 基于边界面解析p - y曲线的软粘土大直径单桩循环侧向响应

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-11 DOI: 10.1002/nag.3911

Xinglei Cheng, Jinhui Yang, Piguang Wang, Mohamed Hesham El Naggar, Mingyuan Wang, Qun Lu, Rui Sun

{"title":"Cyclic Lateral Response of Large-Diameter Monopiles in Soft Clays Using Bounding Surface-Based Analytical p-y Curves","authors":"Xinglei Cheng, Jinhui Yang, Piguang Wang, Mohamed Hesham El Naggar, Mingyuan Wang, Qun Lu, Rui Sun","doi":"10.1002/nag.3911","DOIUrl":"10.1002/nag.3911","url":null,"abstract":"<div>\u0000 \u0000 <p>The p-y curve method provides a relatively simple and efficient means for analyzing the cyclic response of horizontally loaded piles. This study proposes a p-y spring element based on a bounding surface p-y model, which can be readily implemented in Abaqus software using the user-defined element (UEL) interface. The performance of these p-y spring elements is validated by simulating field tests of laterally loaded piles documented in the literature. The developed spring element effectively replicates the nonlinear hysteresis, displacement accumulation, and stiffness degradation observed in soft clay. Subsequently, a finite element model of a large-diameter monopile is established using the proposed spring element. A comprehensive numerical investigation is conducted to explore both the monotonic and cyclic responses of large-diameter monopiles in soft clays. The results are presented and discussed in terms of pile head load–displacement curves, the evolution of rotation angles at the mud surface, and cyclic p-y curves. Additionally, empirical formulas are proposed to predict the evolution of cumulative rotation angles and peak bending moments under both one-way and two-way cyclic loading conditions. The results provide valuable insights into the mechanism of pile–soil interaction under lateral cyclic loading.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"1004-1023"},"PeriodicalIF":3.4,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809227","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

Study of Asymmetric Face Failure and Limit Support Pressure During Curved Tunnels Excavation in Sandy Soils 砂土弯曲隧道开挖非对称工作面破坏及极限支护压力研究

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-11 DOI: 10.1002/nag.3910

Mengxi Zhang, Xue Zhang

{"title":"Study of Asymmetric Face Failure and Limit Support Pressure During Curved Tunnels Excavation in Sandy Soils","authors":"Mengxi Zhang, Xue Zhang","doi":"10.1002/nag.3910","DOIUrl":"10.1002/nag.3910","url":null,"abstract":"<div>\u0000 \u0000 <p>With the continuous urban development, tunnels are increasingly designed with curved alignments to avoid existing structures and to make better use of the underground space. However, these tunnels are usually subjected to complex forces, and current research on the curved tunnels face stability remains incomplete. This paper presents a detailed face stability analysis of curved tunnels, both analytically and numerically. Initially, a series of 3-D numerical simulations are performed to investigate the spatially asymmetric failure pattern of the soil ahead of the curved tunnel face and the stress transfer mechanism of the soil arching effect during the excavation process is explored. Subsequently, based on traditional limit equilibrium methods and the results from numerical simulations, an improved wedge-prism model and corresponding theoretical calculation formulas for the limit support pressure are proposed. The validity of the improved model is confirmed through illustrative analyses, while sensitivity analyses are conducted on the impacts of soil internal friction angle, structural depth ratio, and tunnel curvature radius on the limit support pressure. This study can aid in the calculation of the stability of the tunnel face and the limit support pressure in curved tunnel excavation.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"991-1003"},"PeriodicalIF":3.4,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142809226","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

Size Effect and Macro-Microscopic Bearing Characteristics of Compressed Shallow Foundations Based on Discrete Element Method and Centrifugal Similarity Principle 基于离散元法和离心相似原理的压缩浅基础尺寸效应及宏微观承载特性

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-10 DOI: 10.1002/nag.3913

Yuqi Li, Zhichao Xu, Zhuyin Ma

{"title":"Size Effect and Macro-Microscopic Bearing Characteristics of Compressed Shallow Foundations Based on Discrete Element Method and Centrifugal Similarity Principle","authors":"Yuqi Li, Zhichao Xu, Zhuyin Ma","doi":"10.1002/nag.3913","DOIUrl":"10.1002/nag.3913","url":null,"abstract":"<div>\u0000 \u0000 <p>Based on the discrete element method and the centrifugal similarity theory, Particle Flow Code PFC<sup>2D</sup> was employed to establish numerical models of soil for compressed shallow foundations. The particle size effect and boundary effect of soil-bearing capacity for compressed shallow foundations, as well as the microscopic characteristics and failure mechanisms of soil, were studied. The results show that when the ratio of the foundation width to the maximum particle size in the model was greater than or equal to 30, the effect of particle size on the soil-bearing capacity could be ignored. When the ratio of the net distance from the foundation to the model boundary to the foundation width was greater than or equal to 2, the bearing capacity of the soil was not significantly affected by the model boundary, and the boundary effect could be ignored. With the increase in foundation width, the bearing capacity factor of the soil decreased, and the failure mode of the soil shifted from a general shear failure to a local shear failure or punching shear failure. This research in this paper not only offers valuable insights for downscaling numerical discrete element models, but also introduces novel approaches for macro-microscopic characterization of soil-bearing capacity.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"975-990"},"PeriodicalIF":3.4,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142804885","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

Viscoelastic-Elastoplastic Analysis of Overconsolidated Structural Soft Soils 超固结结构软土的粘弹-弹塑性分析

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-05 DOI: 10.1002/nag.3908

Zhi Yong Ai, Gan Lin Gu, Yuan Hao Jiang

引用次数: 0

General Solution for Longitudinal Response of Shield Tunnel Considering the Effects of Joints and Soil Shear Resistance 考虑节理和土体抗剪作用的盾构隧道纵向响应通解

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-04 DOI: 10.1002/nag.3909

Weiming Huang, Yanwei Zang, Jinchang Wang, Changbao Liu, Zhongxuan Yang, Rongqiao Xu, Huajian Fang

{"title":"General Solution for Longitudinal Response of Shield Tunnel Considering the Effects of Joints and Soil Shear Resistance","authors":"Weiming Huang, Yanwei Zang, Jinchang Wang, Changbao Liu, Zhongxuan Yang, Rongqiao Xu, Huajian Fang","doi":"10.1002/nag.3909","DOIUrl":"10.1002/nag.3909","url":null,"abstract":"<div>\u0000 \u0000 <p>This study introduces a general solution for assessing the longitudinal response of shield tunnels, incorporating the combined effects of joints and soil shear resistance. The analysis employs the Timoshenko beam spring model atop a Vlasov foundation, subjected to arbitrary loads and various boundary conditions. Governing equations and relevant boundary conditions are derived using a variational formulation. Validation is conducted against existing simplified analytical solutions and finite element method simulations, showing the efficacy of the proposed solution. Comparative analyses of different models are undertaken based on the potential energy considerations. Additionally, a parametric study explores influential factors such as subgrade shear and reaction coefficients, as well as joint stiffnesses. Findings highlight the significance of accounting for the soil shear resistance and caution against underestimation when using equivalent continuous beam models. The proposed solution improves the prediction accuracy for the longitudinal response of shield tunnels and offers several benefits including compatibility with other analytical models, computation efficiency, and versatility in considering diverse loads and boundary conditions.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"948-960"},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776410","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

A FEM-DEM Coupling Analysis on Bearing Capacity of Sandy Soil Foundation Considering Fabric Anisotropy 考虑织物各向异性的沙土地基承载力FEM - DEM耦合分析

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-04 DOI: 10.1002/nag.3907

Jiayan Nie, Yi Mou, Jiantao Bu, Mingyuan Zhu, Tao Yang, Lin Xu, Zidong Zheng, Peng Wang, Zhijun Wu

{"title":"A FEM-DEM Coupling Analysis on Bearing Capacity of Sandy Soil Foundation Considering Fabric Anisotropy","authors":"Jiayan Nie, Yi Mou, Jiantao Bu, Mingyuan Zhu, Tao Yang, Lin Xu, Zidong Zheng, Peng Wang, Zhijun Wu","doi":"10.1002/nag.3907","DOIUrl":"10.1002/nag.3907","url":null,"abstract":"<div>\u0000 \u0000 <p>With the acceleration of urbanization, the stability of the foundation is being more crucial to the performance and service of the superstructure. As our understanding of the factors influencing soil's physical and mechanical behavior deepens, it becomes increasingly challenging for traditional limit equilibrium and limit analysis methods to accurately consider the complex factors affecting foundation stability, such as initial fabric anisotropy caused by the particle morphology and geological deposition in sand. Although some scholars had used advanced constitutive models in the finite element method (FEM) to investigate the influence of initial fabric anisotropy on mechanical responses of foundations, this approach failed to reveal the microscopic information underlying the shear failure of sandy soil foundations. In this study, the influence of the initial fabric anisotropy of sandy soil on the ultimate bearing capacity and shear failure mode of shallow foundation is studied using the hierarchical FEM and discrete element method (DEM) coupling analysis method. Four representative volume elements (RVEs) with varying initial bedding plane angles are constructed in DEM for characterizing different initial fabric anisotropies, and the specific stress–strain information of DEM RVEs is directly passed into the corresponding Gauss points in FEM to replace the conventional constitutive model. Numerical results show that the initial fabric anisotropy affects the ultimate bearing capacity and shear failure mode of shallow foundations significantly, and the corresponding micromechanical behaviors at different local Gauss points have been explored, which advances our understanding of the micromechanisms underlying the progressive shear failure of sandy soil foundations significantly.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"931-947"},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776413","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

Temperature Extended-Two-Fluid Tracking (txTFT) Method for Grouting Simulation in High-Temperature Flowing Water 高温流动水中注浆模拟的温度扩展双流体跟踪（txTFT）方法

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-04 DOI: 10.1002/nag.3897

Zhenhao Xu, Zehua Bu, Dongdong Pan, Hao Zhou

{"title":"Temperature Extended-Two-Fluid Tracking (txTFT) Method for Grouting Simulation in High-Temperature Flowing Water","authors":"Zhenhao Xu, Zehua Bu, Dongdong Pan, Hao Zhou","doi":"10.1002/nag.3897","DOIUrl":"10.1002/nag.3897","url":null,"abstract":"<div>\u0000 \u0000 <p>Aiming at the treatment problem for water inflow in a high geothermal environment, we proposed a grouting simulation method in high-temperature flowing water: temperature extended-two-fluid tracking (txTFT) method. First, a transport model for solving the residence time of slurry was derived. Furthermore, a temperature transport model was established to describe the heat transfer between slurry and water. Finally, according to the fitted equation of slurry viscosity with residence time and temperature, the fine characterization of slurry viscosity was realized, and then the whole process simulation of grouting was realized. This method was used to reveal the blocking mechanism for grouting in high-temperature flowing water of rock fractures. The results show that high-temperature water limited the parallel-flow diffusion of slurry and increased the counterflow diffusion and transverse diffusion of slurry. The higher the water temperature, the larger the grouting rate, and the lower the inlet pressure, the better the blocking effect of flowing water. The research results can provide theoretical guidance and application value for the grouting treatment of water inflow in a high geothermal environment.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"911-930"},"PeriodicalIF":3.4,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776412","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

One-Dimensional Fully Coupled Hydro-Mechanical-Chemical Model for Contaminant Transport Under Step-Loading Condition and Its Analytical Solutions 阶梯加载条件下污染物运移的一维全耦合水-机械-化学模型及其解析解

IF 3.4 2区工程技术

International Journal for Numerical and Analytical Methods in Geomechanics Pub Date : 2024-12-03 DOI: 10.1002/nag.3906

Jiashu Zhou, Zhihong Zhang, Lin Han, Xixin Lu, Jinkun Huang, Rencai Jin

{"title":"One-Dimensional Fully Coupled Hydro-Mechanical-Chemical Model for Contaminant Transport Under Step-Loading Condition and Its Analytical Solutions","authors":"Jiashu Zhou, Zhihong Zhang, Lin Han, Xixin Lu, Jinkun Huang, Rencai Jin","doi":"10.1002/nag.3906","DOIUrl":"10.1002/nag.3906","url":null,"abstract":"<div>\u0000 \u0000 <p>Stepped dumpling of waste is the main operating method used in landfill engineering. For the liners located at the bottom of the landfill, the waste can be considered as a vertical loading due to its heavy weight, causing compressive deformation of the liners and, most importantly, tending to lose the effectiveness of the geomembrane with the differential deformation. However, most experiments or numerical models use transient-loading and ignore the influence of variable step-loading on liner performance. In this study, a one-dimensional fully coupled hydro-mechanical-chemical (HMC) model for contaminant transport under the framework of small strain, taking into account the step-loading effect, is proposed, and its analytical solutions are derived by using the separation of variables. The behavior of contaminant transport in a single-layer clay liner is investigated under variable step-loading conditions. Analytical results show that the step-loading can significantly accelerate the transport of contaminants compared to the transient-loading. Variation of the step-loading rate from 2 to 4 times yields an increase of 6.1 and 15.2 years of the breakthrough time. At a step-loading rate of 50 kPa/year, the breakthrough increases by 13.37 years, and the peak settlement reduces to half that under transient-loading. Ignoring the influence of step-loading on contaminant transport may overestimate the performance of clay liners.</p>\u0000 </div>","PeriodicalId":13786,"journal":{"name":"International Journal for Numerical and Analytical Methods in Geomechanics","volume":"49 3","pages":"895-910"},"PeriodicalIF":3.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142776747","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