Tunnelling and Underground Space Technology最新文献

{"title":"Large language models-driven public perception modeling in metro-led underground space: a case study of Hong Kong","authors":"Qi Pan, Yun-Hao Dong, S. Thomas Ng, Fang-Le Peng","doi":"10.1016/j.tust.2026.108076","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108076","url":null,"abstract":"The planning of metro-led underground spaces often neglects public perception, while traditional methods struggle to translate unstructured social media data into actionable insights. This study introduces a novel framework that integrates large language models (LLMs) and machine learning to quantify public experience systematically. Using 25,349 Google Maps reviews for 91 Hong Kong metro stations, an LLM engine performs fine-grained perception extraction across 14 indicators. We propose a “perception value” (PV) metric that synthesizes perception frequency and preference, significantly improving modeling performance. Machine learning analysis identifies “transfer” as the most critical contribution to public satisfaction. Notably, “barrier-free design” emerges as a high-contribution but low-preference factor, signaling an urgent need for improvement. Spatially, our analysis reveals a distinct “center-periphery” pattern in perception quality, enabling targeted renewal strategies. Our framework provides a scalable, interpretable paradigm for transforming public perception into planning intelligence, advancing human-centered governance for urban underground spaces.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"18 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884052","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":"Monitoring data-based viscoelastic analysis of a 640 m long segmental tunnel lining: The stress-regulating role of longitudinal joints","authors":"Maximilian Sorgner, Ali Razgordanisharahi, Florian Stadlbauer, Thomas Pilgerstorfer, Bernd Moritz, Christian Hellmich, Bernhard Pichler","doi":"10.1016/j.tust.2026.108041","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108041","url":null,"abstract":"The structural behavior of a 640 m long stretch of the segmental lining in the north tube of the Koralm tunnel’s construction lot KAT3 is analyzed. Over a period of 3.5 years, circumferential normal strains were measured in nine measurement rings, each consisting of seven tubbings equipped with a centrally located strain sensor pair. A hybrid analysis combines the monitoring data with (visco)elastic modeling of concrete and steel as well as kinematics of slender circular arch theory. This allows for computing circumferential normal forces and axial bending moments at longitudinal sections through the measurement tubbings containing the strain sensor pairs. Cubic splines are used for circumferential interpolation between sensor positions and longitudinal interpolation between measurement rings. The obtained fields of internal forces are translated into fields of utilization degrees of both the reinforced concrete tubbings and the longitudinal joints consisting of plain concrete. The utilization degrees are illustrated in interaction diagrams. All computed pairs of normal force and bending moment – including those transmitted across reinforced tubbing sections – fall within the ultimate capacity boundary of the longitudinal joints. This is consistent with the interpretation that the longitudinal joints play a role in controlling lining stresses. This is particularly the case in highly utilized joints, where concrete exhibits nonlinear creep. This amplifies the overall deformability of the segmental tunnel ring, and thus provides a possibility for the lining to follow the deformation of the surrounding ground mass without activating overly high internal forces.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"26 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884053","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 data-driven spatial equilibrium framework for strategic reallocation in urban underground space planning","authors":"Wei-Xi Wang, Fang-Le Peng, Yun-Hao Dong, Hu Li","doi":"10.1016/j.tust.2026.108083","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108083","url":null,"abstract":"The master planning of urban underground space (UUS) is essential for guiding orderly development, spatial coordination, and sustainable resource allocation. However, existing UUS planning remains largely static and blueprint-oriented, with insufficient attention to the spatial equilibrium among development demand, supply capacity, and existing utilization performance. Taking the central urban area of Jinan, China, as a case study, this research develops a data-driven spatial equilibrium framework based on multi-source urban data. A multi-dimensional spatial autocorrelation analysis matrix (MSAAM) is constructed by integrating bivariate spatial autocorrelation analysis (BSAA) results to identify local–neighbor relationships and differentiated UUS development strategies. The identified combinations are classified into five types: Internal Development, External Development, Balanced Development, Limited Development, and Self-contained Development. Among the 869 classified spatial units, Limited Development accounts for the largest proportion (57.5 %), followed by Balanced Development (23.2 %), Internal Development (7.8 %), Self-contained Development (7.5 %), and External Development (3.9 %). Balanced Development areas are concentrated in mature built-up areas, whereas Internal and External Development areas occur mainly in urban expansion and transitional zones. Limited and Self-contained Development areas are primarily located in urban–rural fringe areas, ecological corridors, and low-density peripheral zones. These findings show that UUS development is shaped by spatial differences in the alignment of demand, supply, and benefit. The framework supports differentiated master planning, strategic zoning, development prioritization, and more efficient allocation of underground space resources.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"19 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884094","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":"RMLS-based global shield tunnel segment dislocation detection with non-uniform deformation awareness","authors":"Ze You, Liying Wang, Zhiwei Qin, Chunxi Xie","doi":"10.1016/j.tust.2026.108075","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108075","url":null,"abstract":"Addressing limitations in existing Rail-mounted Mobile Laser Scanning (RMLS) methods for detecting segment dislocation in shield tunnels, which often rely solely on local point clouds or assume standard cylindrical shapes, this paper proposes a full-domain dislocation detection method accounting for non-uniform deformation. Firstly, it extracts circumferential joints and divides the lining into shield-rings. A depth feature clustering model then locates radial joints within each shield-ring. Considering the ellipticalization of the cross-section and individual segment deformation, a piecewise elliptical arc comparison model is established to detect both circumferential and radial dislocation. This method innovatively breaks from the cylindrical assumption, introduces a non-uniform deformation modeling framework, comprehensively considers tunnel cross-section ellipticity and segment deformation differences, achieving full-domain dislocation detection. Experiments based on RMLS point clouds from Guangzhou Metro Line 2 and the STSD dataset demonstrate the method’s ability to overcome limitations of traditional methods and achieve high-precision full-domain dislocation detection under non-uniform deformation.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"43 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884096","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":"Dynamic response and energy-absorption characteristics of deep jointed sandstone reinforced with different rock bolts under hydro-mechanical coupling","authors":"Ruixue Zhang, Yuxiang Feng, Jianming Wang, Bo Hu, Zhigang Tao, Manchao He, Baoping Zou, Guangcheng Shi","doi":"10.1016/j.tust.2026.108087","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108087","url":null,"abstract":"Geological tectonic processes lead to the widespread development of joints and fractures in deep rock masses. During service, such rock masses are affected not only by rainfall infiltration and groundwater seepage but also by dynamic disturbances such as blasting and earthquakes. The combined effects of seepage, static stress, and dynamic loading alter the stress and deformation states of fracture surfaces, promoting crack initiation, propagation, and coalescence and thereby inducing complex failure responses. As structural weaknesses in rock masses, joints and fractures substantially reduce the overall load-bearing capacity and constitute key factors governing the mechanical response and failure modes of rock masses subjected to seepage and dynamic disturbances. To investigate the dynamic mechanical response and energy-absorption characteristics of bolted fractured rock under a simulated deep hydro-mechanical environment, bolts were fabricated from high-strength, high-toughness, and high-ductility negative Poisson’s ratio (NPR) steel, 45# steel, and Q235 steel. Hydro-mechanically coupled split Hopkinson pressure bar (SHPB) tests were then conducted to comparatively examine the dynamic strength, secant modulus, failure modes, and energy-dissipation characteristics of fractured sandstone reinforced with the three bolt types at different fracture inclination angles. The tests were performed under a fixed hydro-mechanical environment comprising an axial static stress of 27 MPa, a confining pressure of 27 MPa, and a seepage water pressure of 6 MPa, with fracture inclination angles of 0°, 15°, 30°, 45°, and 60°. The results show that NPR bolts markedly improve the dynamic load-bearing and energy-absorption capacities of fractured sandstone. The dynamic peak stresses of the NPR-bolted specimens were 10.22%–39.44% and 19.85%–48.12% higher than those of the specimens reinforced with 45# steel and Q235 steel bolts, respectively. For all three bolted specimen groups, the peak stress first increased and then decreased with increasing fracture inclination, while the NPR-bolted specimen reached a maximum peak stress of 80.00 MPa at an inclination of 15°. Failure-mode analysis indicates that the bolts restrained relative fracture displacement by carrying axial and transverse loads and enhancing resistance to sliding along the fracture surface. At 15°, the NPR-bolted specimen was characterized primarily by tensile cracking and slight particle spalling, without evident block instability. Based on the experimental analysis, a theoretical model incorporating dynamic loading, axial static stress, confining pressure, and seepage water pressure was established. Parameter sensitivity analysis was further conducted to examine the potential effects of environmental parameters on the distribution of axial and shear forces in the bolts, thereby revealing the governing role of the angle between the bolt and fracture plane in the mechanical response stages and energy evolut","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"43 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884093","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 actively-controlled vertical shaft method: principles, equipment and application","authors":"Yeting Zhu, Yanfei Zhu, Wenfei Wu, Wei Gong, Yixin Zhai, Xin Huang","doi":"10.1016/j.tust.2026.108077","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108077","url":null,"abstract":"To address the critical challenges of constructing deep shafts in urban central areas, where water‑rich soft soils, strict disturbance control requirements, construction safety, and operational efficiency impose significant constraints, a novel Actively Controlled Prefabricated Press‑in Shaft (ACPP) method has been developed. The core of this method lies in an integrated system that unifies active sinking control, automated underwater excavation, and digital monitoring within a human‑in‑the‑loop control framework. The system is built upon a dedicated boring machine featuring four key hardware innovations: (1) a synchronized hydraulic jack system enabling active force and attitude control; (2) a multi‑degree‑of‑freedom subaqueous excavation robot with automated kinematic control for precise soil removal; (3) a specialized friction‑reducing grouting system to minimize sinking resistance; and (4) an auxiliary support system designed to maintain hydraulic equilibrium and eliminate dewatering risks. Serving as the central platform that orchestrates these hardware components, a real‑time data‑driven visualization and control system integrates multi‑source information to enable remote precision decision‑making, state transparency, and closed‑loop active regulation. The ACPP system performs active sinking regulation through force‑capacity modulation and attitude correction, achieved via differential jacking and zoned excavation management. The method’s effectiveness was demonstrated through a successful application in a 29.5‑m‑deep emergency shaft in Shanghai, where environmental disturbance was minimized (settlement ≤ 5 mm, compared to approximately 30 mm in conventional methods), construction efficiency doubled, and structural quality exceeded standards (verticality 0.62‰, ovality 1.2‰). The ACPP method shows strong potential for widespread application in deep shaft excavation within highly congested urban environments, and its applicability in hard or heterogeneous strata remains to be further validated.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"5 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148884095","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 curing time and thickness of Thin spray-on liner (TSL) on rock dynamic spalling Resistance: Experimental and Numerical investigation","authors":"Wentao Long, Shiming Wang, Yang Zou, Qiuhong Wu","doi":"10.1016/j.tust.2026.108086","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108086","url":null,"abstract":"Thin Spray-on Liner (TSL) is a fast-curing polymeric material widely used in underground rock support owing to its superior tensile and adhesion properties. Previous studies have primarily focused on its static mechanical behavior; however, underground excavations are inevitably subject to dynamic disturbances, rendering investigation of its dynamic tensile and adhesion strengths critical for rock stability. Nevertheless, the time-dependent evolution of these properties with curing remains inadequately explored. In this study, experiments and numerical simulations were conducted to investigate the time-dependent evolution of the mechanical properties and dynamic support effectiveness of TSL. Uniaxial compression and Brazilian splitting tests were performed on TSL specimens cured for 3, 7, 14, and 28 days, while dynamic spalling tests and simulations were carried out on TSL-supported sandstone under the same curing intervals and with liner thicknesses of 100, 150, and 200 mm. Static tests revealed that the tensile strength, compressive strength, elastic modulus, and P-wave velocity of TSL exhibited nonlinear or linear increases with curing time, while Poisson’s ratio decreased and failure mode transitioned from ductile to brittle. TSL effectively mitigates rock spalling, with the dominant failure mechanism shifting from interfacial debonding to internal liner spalling. Dynamic characteristics showed distinct time dependence: spalling strength increased significantly with curing time and impact pressure, but decreased as liner thickness increased, while dynamic adhesion strength rose rapidly initially and then plateaued. Numerical simulations results were consistent with experimental findings, confirming the variation of spalling strength with curing time and thickness and validating the rationality of the calculated adhesion strength.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"57 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883964","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":"Mechanism of Time-Delayed Rockburst-Inducing disasters in Deep-Buried Tunnels: A microseismic Data-Driven Methodology","authors":"Yumin Liu, Tianhui Ma, Le Dai, Jiaxu Zhao","doi":"10.1016/j.tust.2026.108088","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108088","url":null,"abstract":"Time-delayed rockbursts have become a major and fatal technical disaster as deep plateau tunnel construction advances. Using in-situ microseismic monitoring and heterogeneous numerical modelling, this work investigates the disaster-inducing process of rockburst in locally degraded surrounding rock during a typical time-delayed rockburst occurrence at the crown of a plateau railroad double-line tunnel. The spatiotemporal evolution of rockburst precursors is investigated using seismological metrics (b-value) and spatial fractal dimensions (D-value). We describe a numerical equivalent approach that uses MS energy inversion for initial damage. The Weibull distribution and dynamic simulation tools are used to reconstruct the physical contact process between the softened crown zone and the lining. The results show that the main fundamental cause of delayed collapse is the localised deterioration of nearby rock brought on by previous blasting. Both the b-value and D-value show an abrupt and simultaneous fall (b < 0.7, D < 1.7) before to the rockburst, which can serve as a reference for identifying such latent disasters. Additionally, the lining’s uniform radial support is weakened by the softened region in the surrounding rock. The subsequent blasting in the next tunnel quickly releases the elastic energy contained in the deep load-bearing arch. As a result, the crown lining experiences uneven loading, which is characterised by “outer compression and inner tension,” which eventually results in macroscopic spalling failure. In order to clarify the energy-driven disaster mechanism in potential hazard zones subjected to combined dynamic and static loads, this study combines MS precursor data with a damage evolution model for surrounding rock. This creates a solid theoretical foundation for the early warning and prevention of rockbursts in deep underground engineering.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"19 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883938","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":"Analytical method for predicting uplift response of metro tunnels induced by compaction grouting in soft clay","authors":"Er-bo Wang, Zhi-feng Wang, Ya-qiong Wang, Peng Shen, Zhen-hao Fan","doi":"10.1016/j.tust.2026.108089","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108089","url":null,"abstract":"Compaction grouting is widely used to mitigate excessive and differential settlement of operational metro tunnels in soft clay. This study proposes a new analytical model to predict the uplift force, grouting-induced additional loads, and uplift displacement of metro tunnels. The grouted zone is represented by multiple discrete spherical grout bulbs. The uplift force is derived using spherical cavity expansion theory, while the additional loads is determined by combining the superposition principle with Mindlin’s solution. The tunnel is modelled as a Timoshenko beam on a Winkler foundation to obtain its uplift response. The proposed model is validated against field monitoring data from a compaction-grouting project on Nanjing Metro Line 10, showing good agreement with the measured tunnel deformation. Parametric analyses indicate that the additional loads and tunnel uplift increase with grout volume and grouting pressure, but decrease with tunnel burial depth and the distance between the tunnel and grouting zone. Among all influencing parameters, grouting pressure exhibits the highest sensitivity to both additional loads and uplift displacement, whereas tunnel burial depth shows the weakest effect. When the grouting pressure increases by 0.2 MPa, the additional loads and uplift displacement increase by about 70 kN/m and 5 mm, respectively, corresponding to a growth rate of about 50%. In contrast, when the tunnel burial depth increases by 2 m, the additional loads and uplift displacement decrease by approximately 4.2 kN/m and 0.45 mm, respectively, corresponding to a reduction rate of about 2.1%. The proposed model can provide theoretical support for the uplift design of operational metro tunnels induced by compaction grouting in soft clay.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"27 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883937","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":"Characteristics and formation mechanism of axial chain rockbursts in deep-buried high-geothermal tunnels: Insight from field monitoring and thermo-mechanical experiments","authors":"Yongping Li, Zaobao Liu, Houyu Wang, Zilong Luo, Hongyuan Zhou","doi":"10.1016/j.tust.2026.108078","DOIUrl":"https://doi.org/10.1016/j.tust.2026.108078","url":null,"abstract":"Axial Chain Rockbursts (ACRs) represent a critical hazard in the construction of deep-buried tunnels under high-geothermal conditions, yet their triggering mechanisms under such environments remain inadequately understood. This study systematically investigates ACRs through integrated field surveys, temperature monitoring, microseismic analysis, and true triaxial testing in a typical high-geothermal tunnel in Southwest China. Key findings reveal that ACRs preferentially develop in high-temperature dry rock masses with steeply inclined gneissic foliation aligned at small angles to the tunnel axis. Microseismic activity and energy release are significantly more pronounced in moderate-to-high temperature zones compared to low-to-high temperature zones. While the strength of gneiss remains relatively temperature-insensitive, its energy storage capacity increases markedly with temperature, exhibiting a 40.44 % rise in elastic strain energy at 91.3 °C compared to 33.4 °C. The nucleation of ACRs evolves through four distinct stages: energy accumulation with initial tensile fracturing, progressive fracturing and event clustering, sequential rockburst occurrence accompanied by a transition from tensile to mixed-mode and shear failures, and eventual energy depletion leading to stabilization. These insights provide a mechanistic basis for predicting and mitigating ACR risks in future deep geothermal tunnel projects.","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"268 1","pages":""},"PeriodicalIF":6.9,"publicationDate":"2026-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883939","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}