Soil Dynamics and Earthquake Engineering最新文献

{"title":"Dynamic responses of OWT hybrid monopile-bucket foundations in sands under seismic and environmental loading","authors":"Xinglei Cheng ,&nbsp;Yang Li ,&nbsp;Yadong Zhou ,&nbsp;Xuyue Wang ,&nbsp;Piguang Wang ,&nbsp;Li qiang Sun ,&nbsp;Xiaolan Liu","doi":"10.1016/j.soildyn.2025.109632","DOIUrl":"10.1016/j.soildyn.2025.109632","url":null,"abstract":"<div><div>To improve the bearing performance of the monopile, the innovative hybrid monopile-bucket foundation has been put forward and successfully installed in offshore wind turbine (OWT) pilot projects in China in recent years. However, dynamic responses of hybrid monopile-bucket foundations in sands under seismic and environmental loading are not well covered in the literature. This study presents the development and validation of a three-dimensional numerical model for analyzing dynamic responses of OWT hybrid foundation in sands. Furthermore, this study reveals the rotational mechanism of the hybrid monopile-bucket foundations, examines the variation of pore pressure around the foundation, and investigates the displacement and acceleration responses of the OWT through extensive numerical simulations. It is found that the presence of the suction bucket can improve the soil's liquefaction resistance due to its constraint effect on the soil; the peak ground acceleration significantly impacts the rotation angle of the hybrid foundation, with strong earthquakes potentially causing substantial temporary and permanent rotation due to sand liquefaction; environmental loads, such as wind and waves, often amplify the seismic responses of OWT systems, for example, increasing the rotation angle of the foundation and tower, and accelerating soil liquefaction.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109632"},"PeriodicalIF":4.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517579","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}

{"title":"Combination models of random forest for predicting seismic liquefaction based on SPT, CPT, Vs databases considering sampling strategies","authors":"Jilei Hu ,&nbsp;Lianming Huang ,&nbsp;Qi Shao","doi":"10.1016/j.soildyn.2025.109642","DOIUrl":"10.1016/j.soildyn.2025.109642","url":null,"abstract":"<div><div>The sampling strategy has an important impact on the accuracy of seismic liquefaction discrimination models. In addition, different models may produce contradictory discriminative results. This paper, based on three in situ experimental data (standard penetration test (SPT), cone penetration test (CPT), and shear wave velocity (V_s)), adopts the Random Forest (RF) method to analyze, the effects of five probabilistic sampling methods (Simple Random Sampling (SRS), Unordered Systematic Sampling (USS), Ordered Systematic Sampling (OSS), Stratified Random Sampling (StrRS), and Cluster Sampling (CS)) and five integration methods (sequential integration, voting, simple averaging, weighted averaging, and Bayesian model averaging) on the RF models of seismic liquefaction, and constructs three RF model based different in-situ tests data and a Combined RF Model (CRF). The results show that the sampling methods have a large impact on the performance of the RF model. Among them, the OSS method performed the best in different in-situ test databases with Acc = 0.9 and <em>F</em>_<em>1</em> = 0.930 for the RF-SPT model (the RF model based on the SPT data), Acc = 0.88 and <em>F</em>_<em>1</em> = 0.918 for the RF-CPT model (the RF model based on the CPT data), Acc = 0.872 and <em>F</em>_<em>1</em> = 0.913 for the RF-Vs model (the RF model based on the V_s data), whereas, the CS method performed the worst in the datasets. In addition, sensitivity analysis of the RF models under the optimal sampling method was performed. In combined models, integration modes do not always improve model performance, and sequential integration fails to improve model performance in this study. However, the CRF based on the Bayesian model averaging method performed the best with Acc = 0.924 and <em>F</em>_<em>1</em> = 0.947, which is better than the RF-SPT model.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109642"},"PeriodicalIF":4.2,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144517578","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}

{"title":"Multi-parameter input damage limit prediction for bare reinforced concrete frames using XGBoost","authors":"Chen Xiong ,&nbsp;Yuchao Cao ,&nbsp;Jingfeng Zheng ,&nbsp;Linlin Xie ,&nbsp;Liu Mei ,&nbsp;Lixiao Li ,&nbsp;Wujian Long","doi":"10.1016/j.soildyn.2025.109635","DOIUrl":"10.1016/j.soildyn.2025.109635","url":null,"abstract":"<div><div>Rapid and accurate seismic damage assessment of buildings is vital for pre-earthquake mitigation planning and efficient post-earthquake rescue operations. Inter-story drift ratio (IDR) damage limits are widely used in the seismic damage assessment of reinforced concrete (RC) frame structures. However, IDR limits for different damage levels are influenced by multiple key design parameters, such as axial load ratio, steel grade, and column slenderness. Relying on fixed IDR limits can cause prediction errors when evaluating RC frame structures with varying design parameters. This study introduces a machine learning-based method to predict IDR damage limits of bare RC frame structures by considering the impact of various design parameters. Subsequently, the influence of key design parameters on the damage limits of bare RC frame structures was analyzed. Finally, a dataset comprising 17,820 nonlinear time-history analyses of 162 bare RC frames with varying design parameters was established for model training and testing. Using the extreme gradient boosting (XGBoost) algorithm, the proposed method achieved 90.75 % prediction accuracy for damage states, outperforming the method based on fixed IDR limits. This study offers a valuable reference for the seismic damage evaluation of bare RC frame structures with varying design parameters. The findings have the potential to facilitate post-earthquake risk assessments and inform the development of emergency response strategies.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109635"},"PeriodicalIF":4.2,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511106","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}

{"title":"State space enhanced subtraction average-based optimization for structural parameter identification with soil-structure interaction","authors":"Jinping Yang ,&nbsp;Gangjiao Feng ,&nbsp;Jian Zhou ,&nbsp;Yaokang Zhang ,&nbsp;Peizhen Li","doi":"10.1016/j.soildyn.2025.109637","DOIUrl":"10.1016/j.soildyn.2025.109637","url":null,"abstract":"<div><div>This study developed a mechanical model of frame structures considering soil-structure interaction (SSI) based on Subtraction Average-Based Optimizer (SABO) algorithm and performs optimization of the physical parameters. Comparative validation with traditional Particle Swarm Optimization (PSO) and Grey Wolf Optimization (GWO) algorithms confirmed that the SABO algorithm exhibits superior convergence accuracy and computational efficiency. Subsequent verification using a 6-story Benchmark model and a 5-story Benchmark model incorporating SSI effects demonstrated that the errors between simulated acceleration and displacement results and measured data were within 10 %, proving the algorithm's applicability for SSI integrated frame models. Further refinement of parameter identification, particularly for soil mechanics, damping, and stiffness, and seismic response analysis, are achieved using experimental data from a shaking table test on a twelve-story frame structure. The results indicate that soft soil foundations reduce structural acceleration responses but increase displacement amplitudes. Furthermore, Shanghai bedrock seismic waves exhibit significantly lower acceleration and displacement peaks compared to Kobe waves and Chi-Chi waves. These findings quantitatively characterize the spectral modulation effects of SSI on high-rise structures under diverse seismic excitations, providing valuable insights into intelligent methodologies for evaluating structural parameters and seismic responses.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109637"},"PeriodicalIF":4.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511105","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}

{"title":"Effect of in-tire backfill material weights on the seismic performance of geogrid-wrapped tire-faced retaining walls","authors":"Bin Ma ,&nbsp;Liyan Wang ,&nbsp;Shuo Wang ,&nbsp;Xiang Hu ,&nbsp;Han Wu ,&nbsp;Binghui Wang","doi":"10.1016/j.soildyn.2025.109634","DOIUrl":"10.1016/j.soildyn.2025.109634","url":null,"abstract":"<div><div>Geogrid-wrapped tire-faced retaining walls represent a new type of flexible retaining wall structure designed to recycle waste tire resources. To investigate the influence of in-tire backfill material weights on the seismic performance of geogrid-wrapped tire-faced retaining walls, sandy soil, walnut particles, waste gravel, and steel slag were selected as in-tire backfill materials for a shaking table test, based on the dynamic similarity ratio between soil and structure. The test aimed to examine accelerations under varying seismic load intensities, lateral residual displacements of the walls, vertical settlements of the backfill materials, and displacement thresholds for geogrid-wrapped tire-faced retaining walls, in accordance with a three-level fortification standard. Engineering design recommendations were provided for different in-tire backfill materials, incorporating the displacement-based three level fortification standards. As the weight of the in-tire backfill material increases, the seismic performance of the geogrid-wrapped tire-faced retaining walls improves, with wall deformation transitioning from a “bulging” pattern to a more stable deformation. Additionally, the rupture surface location, indicated by the geogrid strains, shifts backward, aligning with the results of commonly used rupture surface calculations.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109634"},"PeriodicalIF":4.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144511104","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}

{"title":"Examination of the severe impact of the February 6, 2023 earthquakes on Antakya district considering pulse-like ground motions, supershear rupture, and basin effects","authors":"Emre Gani ,&nbsp;Sezer Öztürk ,&nbsp;Ali Sarı","doi":"10.1016/j.soildyn.2025.109608","DOIUrl":"10.1016/j.soildyn.2025.109608","url":null,"abstract":"<div><div>The first earthquake of the February 6 Kahramanmaraş sequence, with its epicenter in Pazarcık, caused severe damage and destruction in the Antakya/Hatay region. In addition to human factors such as structural design, construction practices, and inspection processes, the catastrophic outcomes were influenced by extraordinary seismic characteristics tied to the region's tectonics, geographic location, geological structure, and topographic features. The Antakya region has the potential to experience phenomena such as forward directivity, fling-step, supershear rupture, basin effects, and trampoline effects. This study analyzed records from strong ground motion stations in Antakya to investigate the signatures of these phenomena, both individually and in combination, providing a broader perspective compared to existing studies in the literature. Data from each station were evaluated based on the detection and orientation of velocity pulses, the shape of acceleration response spectra, Cumulative Absolute Velocity (CAV) values, Husid plots, and geological/topographic characteristics. The results revealed that some stations exhibited combined traces of forward directivity, supershear, and basin effects, while others displayed these effects individually. Additionally, heavy damage and destruction rates in neighborhoods surrounding each station were compiled. During the damage assessment, structures were categorized based on parameters such as building age, number of stories, and soil type. The findings showed a significant increase in heavy damage and destruction in cases where potential supershear, forward directivity, and basin effects occurred simultaneously. The use of the V_s_,₃₀-based soil classification and acceleration amplification approach was found to be inadequate in scenarios where basin and trampoline effects were likely. Furthermore, the discrepancy between the response spectra of the Turkish Building Earthquake Code 2018 (TBEC-2018) and station records can be attributed to pulse-like ground motions, supershear effects, and site amplifications. Therefore, it is crucial to consider these phenomena in the design and assessment processes for both newly constructed and existing buildings in regions where such effects are likely to occur.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109608"},"PeriodicalIF":4.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501796","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}

{"title":"Isolation effect of periodic wave impeding block in layered transversely isotropic soil","authors":"Meng Gao ,&nbsp;Zhonghai Tang ,&nbsp;Qingsheng Chen ,&nbsp;Guangyun Gao","doi":"10.1016/j.soildyn.2025.109619","DOIUrl":"10.1016/j.soildyn.2025.109619","url":null,"abstract":"<div><div>Wave impeding blocks (WIB) are often used as a wave barrier for vibration control. However, its isolation range is limited by the soil cut-off frequency, which limits practical effectiveness. Therefore, this study original proposes a periodic structure wave impeding blocks (PSWIB) and derives an analytical solution for the dynamic response of PSWIB in a layered transversely isotropic (TI) soil. The band gap theoretical model of PSWIB was established using the plane wave expansion method, and the band gap results were solved using MATLAB. Subsequently, based on the phononic crystal theory and the effective medium theory, the stiffness matrix of the PSWIB was solved, and the fundamental solution of the vibration isolation effect of PSWIB in a layered soil was derived using the stiffness matrix method. Theoretical analysis indicates that PSWIB outperforms traditional WIB in vibration isolation performance. Reducing the period constant, increasing the elastic modulus ratio of the cladding layer, and increasing the density of the filling material can effectively expand the bandgap. Compared to isotropic soil, the TI characteristics of soil significantly affect its dynamic properties, resulting in notable changes in displacement peaks and peak frequencies. Finally, the calculation results show that, in layered TI soil, altering the burial depth, the number of layers, and the number of periods can enhance the vibration isolation performance of PSWIB. Overall, PSWIB breaks through the constraint of soil cutoff frequency and realizes the isolation of target frequency vibration by designing its composition parameters based on the characteristics of the vibration source.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109619"},"PeriodicalIF":4.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501797","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}

{"title":"Effect of UHPC jacket-to-footing connection method on mechanical behavior of railway bridge piers with low longitudinal reinforcement ratio under cyclic loading","authors":"Zhengnan Liu,&nbsp;Weike Zhang,&nbsp;Xingchong Chen,&nbsp;Zunwen Liu","doi":"10.1016/j.soildyn.2025.109630","DOIUrl":"10.1016/j.soildyn.2025.109630","url":null,"abstract":"<div><div>The ultra-high performance concrete (UHPC) jacket-to-footing connection method has a significant impact on the enhancement of seismic performance of bridge piers. However, the effect of various interfacial connection methods on seismic behavior of the UHPC jacket strengthened the railway pier with low longitudinal reinforcement ratio remains unclear. This study investigated the crack distribution, failure mode, loading capacity, deformation capacity, energy-consuming capacity, stress-strain distribution of three pier specimens using the UHPC jacket-to-footing connection with or without dowels. The experimental results and numerical analyses showed that UHPC jackets with different interfacial connections affected the distribution of major cracks in pier specimens with low longitudinal reinforcement ratio, but not the failure mode (i.e., the fracture of reinforcements). The loading capacity and cumulative energy-dissipating capacity were increased, while the deformation capacity was attenuated. The UHPC jackets changed the stress distribution of the longitudinal reinforcement in the pier specimens. In the absence of any connecting measure between the UHPC jacket and footing, the enlargement of the cross-section of the pier specimen caused simultaneous development of concentrated cracks at the bottom of cross-section and an unstrengthened cross-section at the top position of the UHPC jacket. The reinforcement stresses in all major cracks went to the yield stage, increasing the energy dissipation capacity of the pier specimens. In the pier specimen using the UHPC jacket with dowels, the location of damage was shifted to the unstrengthened cross-section due to the synergistic effect of longitudinal reinforcements and dowels, which accelerated the growth of reinforcements strain in concentrated cracks. In summary, the UHPC jacket without dowels facilitates a balance between the loading capacity and deformation capacity of railway piers with low longitudinal reinforcement ratio.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109630"},"PeriodicalIF":4.2,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501799","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}

{"title":"Dispersion characteristics of seismic wave reflection and transmission in porous media strata via the improved Biot model","authors":"Jiajun Shu ,&nbsp;Tao Li ,&nbsp;Ruiqi Yuan ,&nbsp;Yue Li ,&nbsp;Bingni Wu ,&nbsp;Zhengding Deng ,&nbsp;Jingzhu Huang","doi":"10.1016/j.soildyn.2025.109633","DOIUrl":"10.1016/j.soildyn.2025.109633","url":null,"abstract":"<div><div>Seismic exploration is a key technique for investigating subsurface structures, with reflected and transmitted waves carrying vital geological information. To improve imaging accuracy in complex fluid-bearing reservoirs, the traditional Zoeppritz equations are modified by explicitly introducing fluid factors and Poisson's ratios, enabling a more accurate characterization of the relationships among rock elasticity, wave velocity, and fluid properties. Building on this, the Biot model is extended via skeleton viscoelastic eigenstructure theory and evolving state variables to incorporate multiple energy dissipation mechanisms, thereby enhancing the simulation of complex wavefield responses in porous media. The proposed approach is applied to the Longmaxi shale reservoir in Hubei Province, China, through numerical simulations and parameter sensitivity analyses. The results show that in the 0.1–100 Hz low-frequency range, the improved Biot model agrees well with the experimental data, effectively capturing wave speed dispersion and energy dissipation characteristics. Compared with the classical model, the enhanced version more accurately reflects the frequency-dependent behavior of seismic wave reflection and transmission coefficients and is more sensitive to changes in incidence angle. Further analysis reveals that key reservoir parameters—such as fluid saturation, fluid type, and porosity—significantly influence wave propagation characteristics, especially in the high-frequency range, where nonlinear modulation effects on the wavefield become more pronounced. These findings demonstrate the effectiveness and applicability of the proposed method in improving reservoir identification and seismic wavefield characterization.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109633"},"PeriodicalIF":4.2,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490234","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}

{"title":"Deterministic numerical analysis of excess pore water pressure induced by 2012 earthquake in Pieve di Cento (Italy)","authors":"Lucia Mele ,&nbsp;Fausto Somma","doi":"10.1016/j.soildyn.2025.109624","DOIUrl":"10.1016/j.soildyn.2025.109624","url":null,"abstract":"<div><div>A large area in the Po River Valley (northern Italy) experienced extensive liquefaction phenomena following the seismic event of 20 May 2012. Several indicators of liquefaction, including ground subsidence, lateral spreading, and the appearance of sand boils, were observed. A significant number of buildings were damaged, displaying signs of tilting or subsidence. A reliable estimate of the excess pore pressure induced by seismic shaking within the soil is crucial for predicting the behavior of the soil on a large scale and, consequently, the effects of the earthquake on the built environment. In this study, deterministic analyses of the excess pore water pressure generated during the 2012 Italian earthquake were conducted at the Pieve di Cento site. The analyses were carried out with varying levels of complexity, ranging from loosely coupled to fully coupled dynamic approaches. The strong agreement in terms of excess pore pressure ratio (r_u) suggests that, if properly calibrated, both loosely and fully coupled models can accurately predict earthquake-induced excess pore water pressure and, consequently, liquefaction-induced damage. Additional insights into the impact of soil-structure interaction on excess pore water pressure buildup were also provided. The results suggest that structural loading alters the effective stress state within the soil, which in turn may significantly influence the excess pore pressure ratio relative to free-field conditions.</div></div>","PeriodicalId":49502,"journal":{"name":"Soil Dynamics and Earthquake Engineering","volume":"198 ","pages":"Article 109624"},"PeriodicalIF":4.2,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144490235","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}