Tunnelling and Underground Space Technology最新文献_第2页

Game engine-driven synthetic point cloud generation method for LiDAR-based defect detection in sewers 基于游戏引擎的下水道激光雷达缺陷检测合成点云生成方法

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-23 DOI: 10.1016/j.tust.2025.106755

Minghao Li, Xin Feng, Ziyu Wu, Juju Bai, Fengyuan Yang

{"title":"Game engine-driven synthetic point cloud generation method for LiDAR-based defect detection in sewers","authors":"Minghao Li, Xin Feng, Ziyu Wu, Juju Bai, Fengyuan Yang","doi":"10.1016/j.tust.2025.106755","DOIUrl":"10.1016/j.tust.2025.106755","url":null,"abstract":"<div><div>3D point clouds acquired from emerging light detection and ranging (LiDAR) enable quantitative defect inspection for urban sewers. Defect detection of sewer point clouds is an essential step in deep-learning-based condition assessment; however, it faces challenges related to data scarcity. This study proposes a novel LiDAR simulation-based synthetic point-cloud data generation methodology driven by game engines, which addresses issues arising from geometric occlusions and the defect randomization. Evaluation experiments were conducted to validate the enhancement provided by the synthetic point clouds. The results indicated that the synthetic data significantly enhanced the accuracy of detecting corrosion and spalling defects by 17.90% and 4.69%, 15.22% and 11.69%, 15.56% and 15.21%, and 10.32% and 1.40% for 50, 100, 200, and 300 real scans, respectively. In addition, pre-trained models outperformed the widely used hybrid training approach, solving knowledge transfer between synthetic and real data. The proposed method alleviates data scarcity and contributes to automated defect segmentation in sewer point clouds.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106755"},"PeriodicalIF":6.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114951","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}

引用次数: 0

Optimal range of ventilation velocity in tunnel fires under subcritical longitudinal ventilation 亚临界纵向通风条件下隧道火灾通风速度的最佳范围

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-23 DOI: 10.1016/j.tust.2025.106753

Dong Yang , Zhijie Lin , Xianyuan Lu , Xin Guo , Haoyue Yu , Tao Du

{"title":"Optimal range of ventilation velocity in tunnel fires under subcritical longitudinal ventilation","authors":"Dong Yang , Zhijie Lin , Xianyuan Lu , Xin Guo , Haoyue Yu , Tao Du","doi":"10.1016/j.tust.2025.106753","DOIUrl":"10.1016/j.tust.2025.106753","url":null,"abstract":"<div><div>In tunnel fires under longitudinal ventilation, a large ventilation velocity, such as the critical velocity, may disrupt smoke stratification downstream of the fire source. During the early stages of a fire, when evacuation is in progress, a subcritical ventilation velocity can strike a balance between maintaining smoke stratification and restricting backlayering length. To determine the optimal range of subcritical ventilation velocity, both brine-water and fire smoke experiments are conducted, considering the combined effects of smoke backlayering and stratification. Due to boundary buoyancy loss, the backlayering length observed in fire smoke experiments is slightly shorter than that in brine-water experiments. Smoke stratification is characterized using the thickness of the smoke layer and a dimensionless temperature rise. The thickness of the smoke layer is primarily influenced by ventilation velocity and source buoyancy flux, with minimal impact from boundary heat transfer during the early stages of a tunnel fire. Furthermore, the dimensionless temperature rise tends to increase with higher source buoyancy flux and lower ventilation velocity. Based on human safety criteria, i.e., backlayering length is manageable and smoke does not descend into human activity zone, the optimal range of subcritical ventilation velocity is proposed. These findings provide valuable insights for optimizing ventilation strategies in tunnel fires under subcritical longitudinal ventilation.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106753"},"PeriodicalIF":6.7,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115573","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}

引用次数: 0

Optimizing artificial lighting conditions for rock plane detection on tunnel faces: A controlled experiment using smartphone videogrammetry 隧道岩面探测人工照明条件优化：智能手机视频测量控制实验

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-22 DOI: 10.1016/j.tust.2025.106756

Nirandoal Cheng , Mohd Ashraf Mohamad Ismail , Fatin Nadhirah Ahmad Pauzi , Yasuhiro Yokota , Hayato Tobe

{"title":"Optimizing artificial lighting conditions for rock plane detection on tunnel faces: A controlled experiment using smartphone videogrammetry","authors":"Nirandoal Cheng , Mohd Ashraf Mohamad Ismail , Fatin Nadhirah Ahmad Pauzi , Yasuhiro Yokota , Hayato Tobe","doi":"10.1016/j.tust.2025.106756","DOIUrl":"10.1016/j.tust.2025.106756","url":null,"abstract":"<div><div>The study investigates the influence of artificial lighting conditions on the accuracy of detecting rock planes on tunnel faces using videogrammetry. A controlled experiment was conducted employing 3D-printed models with predefined dip angles and dip directions, illuminated under varying conditions of light intensity, color temperature, and angles. The research utilized advanced imaging techniques to capture video data at multiple distances and angles, followed by detailed 3D point cloud reconstruction and analysis. Results demonstrate that lighting parameters significantly affect videogrammetric outcomes. Optimal configurations such as 5500 K color temperature and 1000 lx intensity enhanced point cloud density and reduced errors, achieving precise detection of rock planes. Oblique video captures outperformed straight-on captures, providing better coverage of inclined surfaces and reducing Root Mean Square Error (RMSE) in measurements. In contrast, combined lighting setups introduced inconsistencies, leading to increased variability. The findings underline the importance of tailored lighting and capture strategies to improve detection accuracy in tunnel environments. Practical guidelines derived from this research offer valuable insights for optimizing videogrammetric workflows in engineering and geotechnical applications.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106756"},"PeriodicalIF":6.7,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105477","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}

引用次数: 0

Mwd-based real-time identification of rock weathering: A comparison of supervised and unsupervised machine learning methods 基于mwd的岩石风化实时识别：监督与无监督机器学习方法的比较

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-22 DOI: 10.1016/j.tust.2025.106744

Yang Li , Jiayao Chen , Yifan Shen , Qian Fang , Jianhong Man

{"title":"Mwd-based real-time identification of rock weathering: A comparison of supervised and unsupervised machine learning methods","authors":"Yang Li , Jiayao Chen , Yifan Shen , Qian Fang , Jianhong Man","doi":"10.1016/j.tust.2025.106744","DOIUrl":"10.1016/j.tust.2025.106744","url":null,"abstract":"<div><div>A large-scale database linking six-dimensional tunneling parameters to rock weathering conditions was constructed from measurement-while-drilling (MWD) data during tunnel construction utilizing the drill-and-blast method. A data-driven predictive model was developed, integrating random search (RS) with a random forest (RF) classifier, for efficient, real-time identification of unexcavated rock weathering levels. Nine comparative models combining CART and XGBoost with hyperparameter optimization were also evaluated using the <em>Macro F</em><sub>1</sub> score. The classification performance, applicability, and generalization capabilities of the proposed model were analyzed. Additionally, several unsupervised models were employed for clustering analysis, leveraging inherent data characteristics. Results demonstrated that the RS-RF algorithm outperforms other models in identifying rock weathering levels, with rotation pressure as the primary classification feature. For large, highly similar datasets, supervised algorithms exhibited superiority over their unsupervised counterparts. Consequently, the proposed model enables optimal classification of rock weathering conditions, thereby providing essential information for subsequent support and measurement.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106744"},"PeriodicalIF":6.7,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115574","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}

引用次数: 0

Performance of pipeline suspension system for in-situ protecting large-diameter pressurized pipelines straddling deep braced excavation in clays 土中深基坑大直径压力管道原位保护管道悬挂系统性能

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-21 DOI: 10.1016/j.tust.2025.106752

Panpan Guo , Tianshe Sun , Haibo Li , Yixian Wang

{"title":"Performance of pipeline suspension system for in-situ protecting large-diameter pressurized pipelines straddling deep braced excavation in clays","authors":"Panpan Guo , Tianshe Sun , Haibo Li , Yixian Wang","doi":"10.1016/j.tust.2025.106752","DOIUrl":"10.1016/j.tust.2025.106752","url":null,"abstract":"<div><div>This paper investigates the in-situ protection technique for buried pipelines straddling deep braced excavation and the relevant structural performance. A deep braced excavation case history for constructing the West Yuanhetang tunnel in Suzhou, China is reported. The excavation is straddled by two shallowly-buried large-diameter pressurized pipelines, with a straddling distance of about 31 m. Considering the significance of the pipelines for the normal life of local citizens, in-situ protective measures is thus necessary for ensuring the pipeline serviceability and stability during excavation. In an attempt to overcome the shortcomings of traditional pipeline protection technique, a new pipeline protection technique based on the suspension method is proposed. This technique takes advantage of the excavation support system. It eliminates the need for installing an exclusive structure for suspending pipelines, which is frequently practiced in conventional methods. Moreover, the original use of several kinds of materials for restraining pipeline displacement and transferring pipeline weight also contributes to a better protection of the pipelines. Furthermore, the performance of the proposed pipeline suspension system during excavation is investigated by using three-dimensional finite element method. The method is validated via reproducing the observed typical behavior of the deep excavation. Results has shown that the maximum axial forces, shear forces, and bending moments in the suspension supporting beams, as well as the maximum axial forces in the finish-rolling screw-thread (FRST) steel bars and the maximum bending moments and shear forces in the composite steel beams, all exhibit a stepwise growth pattern as the construction stage progresses. This research provides practical reference for in-situ protection of buried pipelines within deep braced excavation.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106752"},"PeriodicalIF":6.7,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099751","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}

引用次数: 0

Numerical simulation and experimental study on oxygenation of tunnel face in plateau tunnel construction 高原隧道施工巷道工作面充氧数值模拟与试验研究

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-20 DOI: 10.1016/j.tust.2025.106716

Feng Lu , Jie Liu , Wanqing Wang , Haowen Zhou , Guanding Yang , Huyun Zhao

{"title":"Numerical simulation and experimental study on oxygenation of tunnel face in plateau tunnel construction","authors":"Feng Lu , Jie Liu , Wanqing Wang , Haowen Zhou , Guanding Yang , Huyun Zhao","doi":"10.1016/j.tust.2025.106716","DOIUrl":"10.1016/j.tust.2025.106716","url":null,"abstract":"<div><div>In order to investigate the effect of different oxygenation schemes on oxygen enrichment under different working conditions during the construction of the tunnel face of a large section tunnel on a plateau highway and to solve the quantitative problem of the oxygen enrichment model, a full-size numerical model of the tunnel face and a 1:30 experimental model were established for a plateau highway tunnel. These were used for numerical simulation and experimental research. The results indicate that the oxygen enriched area is piled up in the shape of a round bench when a construction bench is present, whereas in the absence of a construction bench, the oxygen enriched area assumes the shape of a slanting droplet. Furthermore, the oxygen enriched programs with oxygen delivery distances of 9 m, 8 m, and 7 m are unable to deliver the oxygen to the tunnel face. In the absence of a construction bench, the oxygenation effect is enhanced when the distance between the oxygen outlet and the tunnel face is 0.5 m. The oxygen released from different locations in multiple ports is distributed along the tunnel’s oxygen distribution range, which extends from three ports to two ports to one port. The number of oxygen ports affects the initial velocity of oxygen, which is susceptible to wind flow field influence. It is challenging to direct the flow of oxygen along the oxygen ports. The oxygen enriched volume of the different oxygen enriched programs in the tunnel under different working conditions can be quantified according to the multivariate linear regression oxygen enriched model, which can serve as a reference for optimizing oxygen enriched programs.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106716"},"PeriodicalIF":6.7,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090126","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}

引用次数: 0

Reply to Discussion: On effects of critical tunnelling parameters on consolidation-associated long-term greenfield settlement due to shield tunnel in soft ground by J.N. Shirlaw, and S.J. Boone J.N. Shirlaw和S.J. Boone讨论：软土地基盾构隧道开挖关键参数对固结相关长期绿地沉降的影响

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-19 DOI: 10.1016/j.tust.2025.106521

Gang Zheng, Ruikun Wang, Huayang Lei, Xuesong Cheng, Eng-Choon Leong, Hualin Du

引用次数: 0

Mechanism and control of multi-level floor heave in soft rock roadway with straight-wall semicircular arch section 直壁半圆拱断面软岩巷道多级底鼓机理及控制

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-17 DOI: 10.1016/j.tust.2025.106745

Lei Xu , Siyu Wang , Davide Elmo , Shuxue Ding

{"title":"Mechanism and control of multi-level floor heave in soft rock roadway with straight-wall semicircular arch section","authors":"Lei Xu , Siyu Wang , Davide Elmo , Shuxue Ding","doi":"10.1016/j.tust.2025.106745","DOIUrl":"10.1016/j.tust.2025.106745","url":null,"abstract":"<div><div>Floor heave is a typical form of roadway damage in underground mining, often causing transportation and ventilation issues, as well as restricted access. While shear-induced slip is universally acknowledged as the predominant failure mode in roadway surrounding rock, existing research has not recognized the mechanism from the perspective of full-range surrounding rock movement source identification and main slip zone control, resulting in a lack of scientific basis for selecting support types and parameters. Therefore, failures in controlling floor heave are frequently reported, with severe cases exhibiting complete roadway closure due to fully uplifted strata. To achieve precise control of roadway floor heave, a high-resolution Flac<sup>3D</sup> numerical model incorporating stress-release simulation technology, borehole imaging, and multi-layer compressive arch theory was employed. The initiation and evolution of floor heave were successfully reconstructed, with the morphology and location of the main slip zone as well as the surrounding rock structure being accurately characterized. In contrast to conventional control theories, this study presents the following key findings: The slip displacement in the main slip zone is identified innovatively as the critical control target. By suppressing the slip of the main slip zone, the formation of the multi-layer compressive arch is promoted, and thereby the stability of the comprehensive surrounding rock can be achieved. This study provides an accurate calculation method for the location of the main slip, which can more effectively guide the selection of the support systems and parameters. The proposed method was successfully validated in the 11,500 belt conveyor roadway of Shanghaimiao Coal Mine, Inner Mongolia, China. This control strategy represents a leap from empirical to precision-based floor heave management, establishing a new paradigm in roadway stability control.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106745"},"PeriodicalIF":6.7,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066114","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}

引用次数: 0

Gabor CNN-based improvement of tunnel seismic migration imaging and field application with domain adaptation assistance 基于Gabor cnn的隧道地震偏移成像改进及领域自适应辅助应用

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-17 DOI: 10.1016/j.tust.2025.106675

Jiansen Wang , Qingyang Wang , Chao Li , Shiyu Guo , Xinji Xu , Senlin Yang

{"title":"Gabor CNN-based improvement of tunnel seismic migration imaging and field application with domain adaptation assistance","authors":"Jiansen Wang , Qingyang Wang , Chao Li , Shiyu Guo , Xinji Xu , Senlin Yang","doi":"10.1016/j.tust.2025.106675","DOIUrl":"10.1016/j.tust.2025.106675","url":null,"abstract":"<div><div>In tunnel seismic forward-prospecting, the accuracy of migration imaging impacts the geological interpretation of the area ahead of the tunnel face. However, the traditional reverse time migration (RTM) method, which is the adjoint of the Born forward modeling, often yields approximate estimations of reflectivity. This approximation error becomes even more pronounced in the context of small offset tunnel conditions. To address this issue, we propose a novel method for enhancing tunnel RTM imaging by leveraging Gabor Convolutional Neural Networks (CNN). In our approach, we employ a Gabor CNN that incorporates learnable parameters within the Gabor filters to extract pertinent features from tunnel RTM imaging results. By training the network with RTM images as input and the true reflectivity as labels, we enable the network to learn underlying patterns and improve the quality of the imaging. Notably, we tackle the challenge of limited labeled field data by introducing MLReal, a domain adaptation method. MLReal enhances the generalizability of the proposed network to field data by employing an inter-processing and transformation approach that aligns the target data with the synthetic dataset. This alignment allows the network to adapt to real-world field conditions, bridging the gap between synthetic training data and field applications. Extensive numerical experiments validated the superiority of the Gabor CNN, showcasing its ability to generate results closely resembling true reflectivity while outperforming LSRTM. Furthermore, a field case study is conducted in a water transmission tunnel as a practical application to verify the potential of the MLReal-assisted Gabor CNN.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106675"},"PeriodicalIF":6.7,"publicationDate":"2025-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070558","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}

引用次数: 0

Numerical investigation of the thermo-hydro-mechanical performance of energy tunnels in stiff ground conditions 刚性地基条件下能量隧道热-水-力性能数值研究

IF 6.7 1区工程技术

Tunnelling and Underground Space Technology Pub Date : 2025-05-16 DOI: 10.1016/j.tust.2025.106749

Xiangdong Dai, Guillermo A. Narsilio

{"title":"Numerical investigation of the thermo-hydro-mechanical performance of energy tunnels in stiff ground conditions","authors":"Xiangdong Dai, Guillermo A. Narsilio","doi":"10.1016/j.tust.2025.106749","DOIUrl":"10.1016/j.tust.2025.106749","url":null,"abstract":"<div><div>Energy tunnels represent a promising innovation in the integration of tunnel structures with shallow geothermal energy applications. However, the thermo-hydro-mechanical behaviour of energy tunnels in stiff ground conditions, particularly in rock formations, remains largely understudied. This research addresses this gap by employing a thoroughly validated finite element modelling approach, incorporating both tunnel excavation and geothermal operation stages. The study explores the influence of key rock parameters and site conditions such as rock stiffness, permeability, in-situ stress ratio, and Biot’s coefficient on thermally induced tunnel structural and geotechnical responses. Results indicate that tensile stresses exceeding 4.0 MPa are observed in the tunnel lining during ground cooling (i.e., geothermal heating extraction) when hard, low-permeability rock is encountered. This poses a risk of concrete cracking and potentially compromises tunnel durability. Additionally, the in-situ stress ratio is found to have an insignificant effect during thermal operations, whereas neglecting Biot’s coefficient can lead to over- or underestimations of the thermally induced ground deformation and tunnel stress, due to its effect on hydro-mechanical coupling. The discussion on pore water pressure and effective stress provides insights into the thermo-hydro-mechanical behaviour of energy tunnels under different geological and hydrogeological conditions.</div></div>","PeriodicalId":49414,"journal":{"name":"Tunnelling and Underground Space Technology","volume":"163 ","pages":"Article 106749"},"PeriodicalIF":6.7,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144066118","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}

引用次数: 0