International Journal of Rock Mechanics and Mining Sciences最新文献

{"title":"Influence of laser parameters on rock damage: an experimental exploration and machine learning-based predictive modeling","authors":"Zhengkuo Ma ,&nbsp;Chunshun Zhang ,&nbsp;Yiwei Liu ,&nbsp;Tong Ye ,&nbsp;Haizeng Pan","doi":"10.1016/j.ijrmms.2026.106442","DOIUrl":"10.1016/j.ijrmms.2026.106442","url":null,"abstract":"<div><div>Laser rock-breaking technology, a non-mechanical contact method, has garnered attention for its reduced tool wear, high accuracy, and enhanced efficiency in hard-rock fragmentation. However, current research lacks a comprehensive understanding of how laser parameters influence rock-breaking effects, particularly the changes in rock strength after laser irradiation and the development of predictive optimization models. To address these gaps, this study systematically analyzed the effects of laser power (<em>P</em>), irradiation time (<em>t</em>), spot shape size (<em>S</em>), and irradiation distance (<em>d</em>) on rock-breaking using a custom-built test bench for laser irradiation and indirect tensile tests on granite samples. Orthogonal and equivalent energy test schemes were employed to measure and characterize these parameters. A predictive optimization model was developed using Back Propagation Neural Network (BPNN) and Non-dominated Sorting Genetic Algorithm-II (NSGA-II), with the mass-specific energy and indirect tensile strength as optimization targets. Orthogonal results indicate that the significance order of parameters is <em>P</em> &gt; <em>t</em> &gt; <em>S</em> &gt; <em>d</em>, with an optimal combination being <em>P</em> = 1000 W, <em>t</em> = 16 s, <em>S</em> = D2 (circular spot with a diameter of 2 mm), and <em>d</em> = 40 mm. Equivalent energy tests revealed that moderate <em>P</em> and <em>t</em>, with constant laser energy, optimize rock-breaking. This study clarifies laser parameters’ nonlinear regulation on rock-breaking and strength decay scientifically; the BPNN-NSGA-II framework enables accurate prediction and optimization to improve efficiency and reduce energy consumption, providing reliable practical guidance.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106442"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental and 3D numerical study on the damage and fracture mechanisms of hot dry rock cores under microwave irradiation","authors":"Luming Zhou ,&nbsp;Zhihong Zhao ,&nbsp;Zhibo Duan ,&nbsp;Jun Yang ,&nbsp;Yaoyao Zhao ,&nbsp;Yunzhe Jin ,&nbsp;Yang Wu","doi":"10.1016/j.ijrmms.2026.106440","DOIUrl":"10.1016/j.ijrmms.2026.106440","url":null,"abstract":"<div><div>Hot dry rock (HDR) is a deep geothermal resource with significant development potential, but its dense structure and low permeability necessitate reservoir stimulation to improve extraction efficiency. As a low-energy and efficient reservoir stimulation approach, microwave irradiation has potential for enhancing reservoir permeability. In this study, HDR cores from the Matouying site at depths of 3509–3712 m were investigated through laboratory coaxial microwave irradiation experiments, revealing their temperature rise responses and typical fracture patterns. Based on these experiments, a 3D multiphysics numerical simulation method integrating COMSOL finite element software and peridynamics was developed, allowing comprehensive simulation of temperature evolution as well as damage and fracture processes in the samples. Experimental results showed that HDR samples exhibited three typical failure modes: central penetrating brittle fracture, localized surface melting, and heterogeneous interface-induced melting-shear fracture. The fracture paths and morphologies were mainly governed by the spatial distribution of relative dielectric constant and interface effects. The simulated temperature curves, hotspot distributions, and damage evolution closely matched the experimental results, effectively capturing key phenomena such as energy accumulation at metal-rock interfaces, local melting, and the initiation of main fractures. These findings reveal temperature-field-dominated damage initiation and directional propagation under microwave irradiation, providing a physical basis for efficient and controllable geothermal reservoir stimulation.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106440"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Permeability impairment by hydrodynamic pore bridging: Probabilistic pore-network modeling and microfluidic experiments","authors":"Cyprien Soulaine,&nbsp;Walid Okaybi,&nbsp;Laurez Fogouang Maya,&nbsp;Emmanuel Le Trong,&nbsp;Sophie Roman","doi":"10.1016/j.ijrmms.2026.106423","DOIUrl":"10.1016/j.ijrmms.2026.106423","url":null,"abstract":"<div><div>Permeability impairment caused by the migration and retention of suspended particles is a critical issue in numerous industrial and environmental processes. While pore-network models (PNMs) have successfully described clogging by sieving and particle aggregation, they have failed to capture hydrodynamic bridging – a mechanism where particle arches form and block pore throats. This study introduces a novel probabilistic PNM that incorporates a stochastic law for arch formation, accounting for the particle-to-throat size ratio, particle concentration, and pore geometry. The probability law is calibrated using high-fidelity CFD–DEM simulations of single-pore bridging. Microfluidic experiments in heterogeneous micromodels representative of the rock microstructure are carried out to investigate the effect of particle size and concentration, and flow rate on permeability reduction. The proposed probabilistic framework successfully reproduces experimental trends in clogging dynamics and permeability decline, thereby extending the capability of PNMs to capture all three pore-clogging mechanisms.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106423"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146134486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Constructing large-scale high-fidelity fracture networks based on generative AI","authors":"Mengmeng Nie ,&nbsp;Xuhai Tang ,&nbsp;Fei Gao ,&nbsp;Quansheng Liu ,&nbsp;Jiangmei Qiao","doi":"10.1016/j.ijrmms.2026.106426","DOIUrl":"10.1016/j.ijrmms.2026.106426","url":null,"abstract":"<div><div>Accurate fracture network modeling is crucial for many fields, such as geothermal resources exploitation, underground infrastructure construction and nuclear waste disposal. However, only small-scale fracture network images can generally be obtained in field work, which is insufficient for engineering-scale analysis. Therefore, based on generative artificial intelligence (AI), we introduced a novel algorithm, termed Upscaling-GAN, to generate large-scale high-fidelity fracture networks by directly learning from small-scale fracture network images collected in the field. The algorithm employs a two-stage generation process: (1) Generative Adversarial Network (GAN) model is trained to generate small-scale fracture networks; (2) based on the patch-by-patch generation paradigm, a large-scale fracture network is generated from these small-scale fracture networks, which are obtained by applying the trained model. The achieved AI-generated fracture networks have significant advantages: 1) compared to fractal-geometry-based methods or stochastic discrete fracture network model, the present method can exactly characterize the geometrical characteristics and topological structures of natural fracture systems; 2) compared to previous GAN-based method, our algorithm can rigorously capture the spatial variability of fracture apertures by directly learning from raw fracture network images without laborious preprocessing procedures such as binarization and skeletonization; 3) when the size of the target image increases, the GPU memory consumption remains nearly unchanged. And the effectiveness of the Upscaling-GAN model in fracture network modeling is rigorously validated through qualitative and quantitative evaluations.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106426"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microwave melting of lunar regolith simulant in an unchambered environment: Insights from physical model experiments","authors":"Jia-Qi Lu ,&nbsp;Zheng-Wei Li ,&nbsp;Xia-Ting Feng ,&nbsp;Cheng-Dan He ,&nbsp;Yong-Jun Wang ,&nbsp;Yang Zuo ,&nbsp;Jin Wang","doi":"10.1016/j.ijrmms.2026.106433","DOIUrl":"10.1016/j.ijrmms.2026.106433","url":null,"abstract":"<div><div>The microwave melting technology for lunar regolith capitalizes on the electromagnetic loss occurring within an alternating electromagnetic field to carry out the heating process and the subsequent solidification. This heating process is characterized by advantages like selectivity, uniformity, and immediacy, rendering it an extremely promising in-situ construction approach. To adapt to the lunar surface operational conditions, this study introduces an open-type microwave melting method for lunar regolith. Physical model experiments were carried out on the microwave melting of lunar regolith simulant in an unchambered environment. Key parameters such as microwave power, working distance, and energy consumption and their impacts on the temperature field and melt evolution during the melting process were systematically investigated. Additionally, the macroscopic morphology, porosity features, microstructure, and nanomechanical properties of the melted samples were analyzed. The results show that the surface temperature evolution of lunar regolith simulant in an open-type microwave energy field features a distinct three stage pattern: an initial slow linear heating, a mid-stage with a rapidly increasing heating rate and a final temperature stabilization. The semi-ellipsoidal shape of microwave fixed-point melted samples is determined by the electromagnetic field distribution in the simulant under open-type microwave irradiation. With the same microwave energy consumption, samples melted under low-power and long-duration conditions have lower macroscopic porosity, smaller average pore diameter, and a more uniform pore distribution, but poorer micro mechanical property uniformity in the matrix. Conversely, samples melted under high-power and short-duration conditions display higher macroscopic porosity, larger average pore diameter, and non-uniform pore distribution. However, their matrix shows better uniformity in micro-mechanical properties. Microstructural analysis shows that during melt formation, lunar regolith simulant particles change from a separated state to a molten one. The molten body evolves from having a small number of open pores to many closed pores, finally forming a dense, pore-free solid.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106433"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An experimental insight into water-driven fracture of granite under coupled stress–temperature conditions","authors":"Taiwen Li ,&nbsp;Lankai Liu ,&nbsp;Rong Wang ,&nbsp;Juhui Zhu ,&nbsp;Zidong Fan ,&nbsp;Xiaofang Nie ,&nbsp;Li Ren ,&nbsp;Qin Zhou","doi":"10.1016/j.ijrmms.2026.106441","DOIUrl":"10.1016/j.ijrmms.2026.106441","url":null,"abstract":"<div><div>Rock fracture toughness testing under coupled stress-temperature conditions remains unaddressed by the ISRM-suggested methods, limiting understanding of water-injection-driven rock fractures in deep horizons. To bridge this gap, hydraulic fracturing experiments on Jining granite employed hollow double-wing crack specimens under coupled stress-temperature conditions mimicking burial depths (2200–4500 m) were performed. Key findings reveal: (1) Confining pressure densifies the granite microstructure, promoting transgranular failure and enhancing fracture toughness; (2) Heated water, rather than elevated temperature alone, drastically reduces fracture toughness via thermochemical reactions—grain boundary weakening and mineral alteration—with these effects intensifying with increasing depth; (3) Competition between geostress strengthening and water-induced degradation creates a counterintuitive depth-dependence, i.e., fracture toughness peaks near 3000 m; (4) Despite the increasing degradation from water–rock interactions at greater depths, geostress-induced strengthening remains dominant across studied depths, resulting in fracture toughness under conditions mimicking deep horizons still exceeding that under ambient conditions simulating the Earth's surface. These findings advance the understanding of coupled stress–temperature–fluid effects on fracture toughness and provide practical guidance for hydraulic-fracturing design in deep geothermal reservoirs.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106441"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A high-accuracy spatiotemporal numerical manifold method with thermal DOF inheritance and its application in rock thermal fracturing analysis","authors":"Kai Wang ,&nbsp;Chun'an Tang ,&nbsp;Danqing Zhao ,&nbsp;Chaowei Sun ,&nbsp;Gang Li","doi":"10.1016/j.ijrmms.2026.106457","DOIUrl":"10.1016/j.ijrmms.2026.106457","url":null,"abstract":"<div><div>In practical engineering such as deep geothermal extraction and geological disposal of nuclear waste, rock thermal fracturing typically involves large spatial scales, long time spans, and highly time-dependent loading conditions. These characteristics pose significant challenges to the accuracy and computational efficiency of numerical methods. On the basis of recently developed spatial discretization and temporal integration schemes, we propose an innovative thermal DOF inheritance strategy in which the transient temperature field is computed precisely by mapping local approximations of physical patches to Gaussian integration points and temperature loading points during the formation of the heat conduction matrix to handle crack propagation between consecutive time steps, leading to the development of a high-accuracy spatiotemporal numerical manifold method that can accurately model crack propagation under transient heat transfer conditions. Numerical examples illustrate that the proposed method achieves an effective balance between computational accuracy and efficiency when rock thermal fracturing is simulated under transient heat transfer conditions. It therefore provides a scientifically robust and engineering-oriented numerical framework for simulating rock thermal fracturing problems involving large spatial scales, long time spans, and strongly time-dependent thermal loading.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106457"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Experimental investigation of frictional healing in granite: temperature-mineral composition interplay","authors":"Jintong Zhang ,&nbsp;Hideaki Yasuhara ,&nbsp;Kiyoshi Kishida ,&nbsp;Zhihong Zhao","doi":"10.1016/j.ijrmms.2026.106459","DOIUrl":"10.1016/j.ijrmms.2026.106459","url":null,"abstract":"<div><div>Frictional healing of rock fractures is critical to the long-term stability of geological repositories for nuclear waste. This study investigates the influence of temperature on the frictional healing behavior of Inagawa and Inada granites using Slide-Hold-Slide (SHS) direct shear experiments conducted at 20 °C and 60 °C with hold periods ranging from 1 min to 5 days. The integrated analysis involved quantifying mechanical compaction during the hold phase and subsequent shear-induced dilation, monitoring chemical dissolution from the fracture interface, and applying rate-and-state friction (RSF) theory to characterize key parameters governing sliding stability. Experimental results demonstrate that at 20 °C, Inagawa granite exhibits a significantly higher frictional healing rate than Inada granite. Although elevating the temperature to 60 °C enhances healing in both granites, the increase is more pronounced in Inada granite. This behavior reflects lithology-dependent thermo–mechanical–chemical effects: the quartz- and feldspar-rich Inada granite shows a larger healing enhancement due to the higher thermal expansion coefficients and increased dissolution rates of these minerals at elevated temperature, whereas the biotite-rich Inagawa granite exhibits only a modest increase in healing rate owing to its lower thermal expansion coefficients and limited dissolution kinetics. Furthermore, rate-and-state friction (RSF) analysis indicates that Inagawa granite possesses a shorter cutoff time and higher cutoff velocity, suggesting that while it heals faster, it also has a greater potential for unstable slip. These findings provide mechanistic insights into the frictional stability of granite, highlighting the complex interplay of thermal, mechanical, and chemical (TMC) processes that govern the behavior of fractured rock.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106459"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146152637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of secondary fractures on fault seismic rupture and aseismic slip during CO2 sequestration","authors":"Lijun Liu ,&nbsp;Xiaoguang Wang ,&nbsp;Qinghua Lei","doi":"10.1016/j.ijrmms.2026.106456","DOIUrl":"10.1016/j.ijrmms.2026.106456","url":null,"abstract":"<div><div>Fluid injection-induced fault activation and seismicity pose significant risks to the integrity of CO₂ geological sequestration projects. This study develops a computational model integrating two-phase fluid flow and geomechanics to investigate the influence of secondary fractures on fault activation and induced seismicity. The frictional strength variation of the fault and fractures is captured by a slip weakening model that incorporates healing mechanisms. A dynamic time-marching scheme is implemented to efficiently capture both slow aseismic slips and rapid seismic ruptures in a densely faulted/fractured reservoir, enabling detailed analysis of energy release during long-term CO₂ injection. Our results indicate that secondary fractures facilitate early-stage pressure dissipation, delaying fault slip and reducing seismic events. However, at later stages, secondary fractures contribute to increased seismicity, characterized by larger magnitudes and more extensive rupture zones. Critical pressure analysis reveals that seismicity propagates ahead of the fluid-pressurized zone, indicating that stress transfer plays a key role in triggering induced seismicity. Furthermore, we document a novel mechanism of seismic slip cascades developing in the fracture population, where fracture interactions boosted by stress transfer and aseismic deformation activate a series of fracture clusters to rupture in a bursting manner, promoting the spatial migration of seismic events beyond the fluid pressurization front. These findings provide new insights into the mechanisms of injection-induced seismicity, with far-reaching implications for CO₂ sequestration in fractured geological media.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106456"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146146554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of free surface on microwave-induced rock fracturing: An experimental and numerical study","authors":"Yanlong Zheng ,&nbsp;Ziqiang Su ,&nbsp;Gaofeng Zhao ,&nbsp;Ping Che ,&nbsp;Jianchun Li","doi":"10.1016/j.ijrmms.2026.106455","DOIUrl":"10.1016/j.ijrmms.2026.106455","url":null,"abstract":"<div><div>Microwave-induced fracturing has emerged as a promising technique to enhance rock breakage efficiency in deep mining and tunneling. However, the influence of free surface on crack initiation and propagation in rocks under microwave irradiation remains insufficiently understood. In this study, gabbro specimens with varying dimensions were subjected to open-ended microwave irradiation at 6 kW and different free surface distances. Complementary numerical simulations were conducted using a weakly coupled approach combining COMSOL Multiphysics with a four-dimensional lattice spring model (4D-LSM). Results show that the maximum surface temperature on the irradiated face remains nearly unaffected by free surface distance. An optimal range of 5–10 cm was identified, within which both side and face cracks reached maximum propagation. When the distance exceeded 15 cm, lateral crack length declined sharply, and no cracks reached the free surface beyond 20 cm. Stress concentration between the microwave source and the free surface was found to be the primary driver of directional crack propagation, with a critical energy threshold required for cracks to reach the surface. Furthermore, crack length was positively correlated with dielectric loss factor and thermal expansion coefficient, but negatively correlated with tensile strength and Poisson's ratio. These findings provide new insights into the mechanisms of microwave-induced rock fracturing and offer guidance for the engineering application of microwave-assisted mechanical rock breakage.</div></div>","PeriodicalId":54941,"journal":{"name":"International Journal of Rock Mechanics and Mining Sciences","volume":"200 ","pages":"Article 106455"},"PeriodicalIF":7.5,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146191777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}