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Research on Height Feature Extraction Method of Tank Pool Fire Based on Improved Mask R-CNN 基于改进掩模R-CNN的罐池火灾高度特征提取方法研究
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3279
Jungang Zhao, Jiangang Sun
{"title":"Research on Height Feature Extraction Method of Tank Pool Fire Based on Improved Mask R-CNN","authors":"Jungang Zhao,&nbsp;Jiangang Sun","doi":"10.1002/cepa.3279","DOIUrl":"https://doi.org/10.1002/cepa.3279","url":null,"abstract":"<p>Tank pool fires are a hazardous form of fire, and their height feature plays a critical role in the assessment of thermal radiation. Using Mask R-CNN as the benchmark network, this study introduces a deformable convolution structure and optimizes the loss function to achieve accurate instance segmentation of tank pool fires, extracting segmentation masks and then calculating the fire height using reference object sizes. The proposed improvements were evaluated on a self-built dataset, and the experimental results verified the effectiveness of the method. Compared to the baseline model, the improved Mask R-CNN increased AP50 and AP75 by 6.29% and 2.48%, respectively, significantly enhancing the segmentation performance of tanks and pool fires. Compared with three other segmentation algorithms, the method improved mAP by 10.95%, 7.05%, and 9.49% over Unet, Deeplab, and PSPNet, respectively, demonstrating its strong competitiveness in pool fire target segmentation.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1958-1965"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research and Application of Hydropower Dam Deformation Monitoring Model Based on HBA-GRU 基于HBA-GRU的水电站大坝变形监测模型研究与应用
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3275
Yong Huang, Xuan Song, Cun Xin, Haichen Zhu, Jintao Song
{"title":"Research and Application of Hydropower Dam Deformation Monitoring Model Based on HBA-GRU","authors":"Yong Huang,&nbsp;Xuan Song,&nbsp;Cun Xin,&nbsp;Haichen Zhu,&nbsp;Jintao Song","doi":"10.1002/cepa.3275","DOIUrl":"https://doi.org/10.1002/cepa.3275","url":null,"abstract":"<p>The nonlinear features of dam deformation is one of the key factors that limits the accurate prediction of dam deformation. On this promise, this paper proposes a dam deformation prediction model that is applicable to the nonlinear features of dams. In particular, the Honey Badger Optimization Algorithm (HBA), which has strong seeking ability and high convergence accuracy, is integrated with the deep learning Gated Recurrent Unit (GRU) model, which is advantageous in nonlinear prediction problems, to generate HBA-GRU for dam deformation monitoring. Experiments were carried out to apply the proposed method in the measured deformation monitoring of panel rock fill dams at Gongboxia Hydropower Station, and the effectiveness of the proposed method was compared with the existing prediction methods, such as LSTM, GRU, and HBA-LSTM. The results show that compared with the existing prediction methods, the proposed method performs better than the LSTM, GRU and HBA-LSTM algorithms, HBA-GRU algorithm, and can provide technical support for dam deformation monitoring.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1920-1932"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on the Attenuation Law of Anti-skid Performance of Pavement in Different Maintenance Projects 不同养护项目下路面防滑性能衰减规律研究
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3226
Rong Chang, Qing Ma, Jie Wang
{"title":"Research on the Attenuation Law of Anti-skid Performance of Pavement in Different Maintenance Projects","authors":"Rong Chang,&nbsp;Qing Ma,&nbsp;Jie Wang","doi":"10.1002/cepa.3226","DOIUrl":"https://doi.org/10.1002/cepa.3226","url":null,"abstract":"<p>The lateral force coefficient is used both domestically and internationally to evaluate the anti-skid performance of asphalt pavement on highways. This article studies the attenuation law of anti-skid performance of different types of maintenance engineering easy to compact thin layer cover, micro surface treatment, in-situ thermal regeneration and semi open graded thin layer cover. The results indicate that the variation of SFC in different maintenance projects is directly influenced by the traffic level, and the larger the traffic level, the faster the attenuation of SFC. The ranking of the anti-skid and durability performance of maintenance projects under heavy traffic level is: easy compact thin layer cover, semi open graded ultra-thin cover&gt;in situ geothermal regeneration, and micro surface treatment. The ranking of the anti-skid and durability performance of maintenance projects under the medium transportation level is: easy to compact thin layer cover&gt;micro surface&gt;inplace geothermal regeneration.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1395-1402"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ground Stress Characteristics of Underground Caverns in Yebatan Hydropower Station 叶巴滩水电站地下洞室地应力特征
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3152
Chong Zhang, Jianhua He, Xiuli Ding, Shuling Huang, Peiyang Yu
{"title":"Ground Stress Characteristics of Underground Caverns in Yebatan Hydropower Station","authors":"Chong Zhang,&nbsp;Jianhua He,&nbsp;Xiuli Ding,&nbsp;Shuling Huang,&nbsp;Peiyang Yu","doi":"10.1002/cepa.3152","DOIUrl":"https://doi.org/10.1002/cepa.3152","url":null,"abstract":"<p>Ground stress is the primary load acting on the support structures of large underground engineering projects, directly affecting the stability of the cavern's surrounding rock. Therefore, determining the characteristics of ground stress is the main issue to be resolved in the design of underground engineering. To investigate the ground stress characteristics of underground caverns in Yebatan hydropower station, the aperture deforming method is adopted to measure the ground stress. The results show that the magnitude of maximum principal stress (i.e. σ1) is 16.51 - 37.57 MPa. And its orientation ranges from N82°E to N54°W, which is close to the direction of the regional tectonic principal compressive stress. Meanwhile, ground stress field of underground caverns is mainly horizontal tectonic stress. Furthermore, the formation of disk-shaped rock cores can be found in the drilling holes of PD08 exploratory adit, indicating that the underground caverns are located in high ground stress area. Finally, the location of spalling is concentrated in upstream spandrel, providing significant validation for the ground stress characteristics within the underground caverns of Yebatan hydropower station.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"630-639"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Modeling Memory Effects in One-Dimensional Soft Soil Consolidation: A Fractional-Derivative Approach 一维软土固结中的记忆效应建模：一种分数导数方法
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3153
Tao Feng, Tao Zeng, Yabo Chen, Yongtang Yu, Chuanzhao Xu
{"title":"Modeling Memory Effects in One-Dimensional Soft Soil Consolidation: A Fractional-Derivative Approach","authors":"Tao Feng,&nbsp;Tao Zeng,&nbsp;Yabo Chen,&nbsp;Yongtang Yu,&nbsp;Chuanzhao Xu","doi":"10.1002/cepa.3153","DOIUrl":"https://doi.org/10.1002/cepa.3153","url":null,"abstract":"<p>With the increase in construction on soft clay, accurately assessing its consolidation behavior has become crucial. This paper presents a consolidation system using fractional-derivative models. The Caputo fractional-derivative Merchant model (FDMM) was used to simulate soil skeleton deformation, and the Riemann-Liouville (R-L) fractional-derivative Darcy model (FDDM) was adopted to describe water flow within soft clay. The efficiency of the R-L FDDM was verified using literature data. The one-dimensional rheological consolidation equation was derived. The reliability of the numerical procedure was examined by comparing the calculated results with literature data. Finally, the influence of fractional order on the consolidation behavior of soft clay was investigated.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"640-645"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Staged Tensioning Control of Precast Box Girder Prestressing Based on Orthogonal Experimental Analysis 基于正交试验分析的预制箱梁预应力阶段张拉控制
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3240
Yuanxun Zheng, Jinhan Zhang, Jingjiang Wu, Pan Guo
{"title":"Staged Tensioning Control of Precast Box Girder Prestressing Based on Orthogonal Experimental Analysis","authors":"Yuanxun Zheng,&nbsp;Jinhan Zhang,&nbsp;Jingjiang Wu,&nbsp;Pan Guo","doi":"10.1002/cepa.3240","DOIUrl":"https://doi.org/10.1002/cepa.3240","url":null,"abstract":"<p>In the field of bridge assembly construction, longer girder storage periods and high temperature and humidity vaporization environments may lead to increased prestress losses in box girders at later stages. In order to reduce the prestressing loss of prefabricated box girders, this paper relies on the actual engineering, through the orthogonal experimental design method, adopts the L16 orthogonal table for the initial tensioning condition of prefabricated box girders, and simulates Maximum stresses of box girders in different working conditions by utilizing the finite element software ABAQUS. The main factors affecting the box girder stresses were determined by polar analysis and one-way ANOVA. The results of the study show that the prestressing efficiency of the box girder can be improved by symmetrically tensioning 8 or 10 steel bundles when the concrete strength reaches 70% or 75% while meeting the concrete strength requirements.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1555-1562"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on the Construction Process Scheme of Artificial Chamber of Compressed Air Energy Storage Power Station 压缩空气蓄能电站人工硐室施工工艺方案研究
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3214
Bei Cai, Han Wang, Liang Lv, Kang Chen
{"title":"Research on the Construction Process Scheme of Artificial Chamber of Compressed Air Energy Storage Power Station","authors":"Bei Cai,&nbsp;Han Wang,&nbsp;Liang Lv,&nbsp;Kang Chen","doi":"10.1002/cepa.3214","DOIUrl":"https://doi.org/10.1002/cepa.3214","url":null,"abstract":"<p>The introduction of a new power system centered on renewable energy presents significant opportunities for compressed air energy storage (CAES), which boasts noteworthy advantages such as scalability, cost-effectiveness, longevity, and rapid construction timelines. However, a considerable constraint on the advancement of affordable air energy storage is the need for substantial gas storage capacity. For instance, a single compressed air project with a capacity of 300 MW over 5 hours necessitates more than 500,000 cubic meters of gas storage space. Due to the extensive gas storage requirements of large-scale CAES facilities, surface storage solutions are typically only viable for smaller power stations and are largely confined to experimental phases. Furthermore, the capital investment for these above-ground facilities tends to be higher than that for underground alternatives. Consequently, to optimize both economic viability and storage capacity, underground gas storage solutions are predominantly utilized in projects currently under development or in the planning stage. Gas storage infrastructure represents a crucial component of a CAES power station, serving as a key determinant for both construction costs and site selection as well as being pivotal to the technical efficiency and safety of energy operations. This paper integrates hydropower and extraction construction methodologies, thoroughly evaluates the economic implications and periodic nature of construction, and analyzes the strengths and weaknesses of various construction techniques in relation to specific projects. This analysis aims to facilitate and inform the large-scale implementation of forthcoming compressed air energy storage initiatives.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1270-1281"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic Analysis of Long-span Suspension Bridge and Vehicle System under Un-uniform Seismic Excitation 非均匀地震激励下大跨度悬索桥及车辆系统的动力分析
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3193
Xiaoyuan Wang, Shirong Chen
{"title":"Dynamic Analysis of Long-span Suspension Bridge and Vehicle System under Un-uniform Seismic Excitation","authors":"Xiaoyuan Wang,&nbsp;Shirong Chen","doi":"10.1002/cepa.3193","DOIUrl":"https://doi.org/10.1002/cepa.3193","url":null,"abstract":"<p>With the development of high-speed railway construction, there are more and more long-span railway bridges, which significantly increases the probability of trains running on the bridge during an earthquake. The impact of seismic loads on the safety of trains running on the bridge cannot be ignored. By studying the dynamic response of the vehicle-bridge system under seismic action, we can try to avoid derailment and other events caused by earthquakes as much as possible. This paper mainly focuses on three aspects: seismic wave input, structural characteristics, and vehicle-bridge system response analysis, to study the dynamic response of the vehicle-bridge system under the action of seismic waves considering the traveling wave effect. Through the dynamic analysis of the vehicle-bridge system under non-uniform seismic action for the Oujiang suspension bridge. The research found that: (1) The impact on the vehicle-bridge system is not significant among different seismic wave propagation velocities; (2) With the increase of train speed, the derailment coefficient and the wheel load reduction rate of the train increase.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1034-1041"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research on Urban Embankment Reinforcement - Example of Dadu River Embankment in Leshan City 城市堤防加固研究——以乐山市大渡河堤防为例
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3264
Song Sha, Xing Zhou, Congpeng Zhang, Yue Yuan
{"title":"Research on Urban Embankment Reinforcement - Example of Dadu River Embankment in Leshan City","authors":"Song Sha,&nbsp;Xing Zhou,&nbsp;Congpeng Zhang,&nbsp;Yue Yuan","doi":"10.1002/cepa.3264","DOIUrl":"https://doi.org/10.1002/cepa.3264","url":null,"abstract":"<p>It is imperative that urban embankment reinforcement not only consider the traditional function of flood defence, but also combine with the concept of ecological landscape in order to create a harmonious urban flood protection space. This paper takes the Dadu River embankment in Leshan City as a case study and describes a novel approach to urban embankment reinforcement design. It introduces a composite urban embankment reinforcement design scheme that considers flood control enhancement, ecological landscape, water-friendly leisure and slow traffic. This scheme may serve as a reference for similar projects.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"1798-1806"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Based on Acoustic Emission and Neural Network Pattern Recognition to Reduce the Noise of In-service Reinforced Concrete Columns 基于声发射和神经网络模式识别的在役钢筋混凝土柱噪声降噪方法
ce/papers Pub Date : 2025-03-18 DOI: 10.1002/cepa.3175
Tianjiao Miao, Tao Liu, Liyuan Liu, Zichen Cheng, Aiping Yu
{"title":"Based on Acoustic Emission and Neural Network Pattern Recognition to Reduce the Noise of In-service Reinforced Concrete Columns","authors":"Tianjiao Miao,&nbsp;Tao Liu,&nbsp;Liyuan Liu,&nbsp;Zichen Cheng,&nbsp;Aiping Yu","doi":"10.1002/cepa.3175","DOIUrl":"https://doi.org/10.1002/cepa.3175","url":null,"abstract":"<p>The large-scale and complex structure of reinforced concrete columns results in a pronounced distortion of acoustic emission waves, which in turn distorts the monitoring data. The vibrations from the adjacent slabs of in-service reinforced concrete columns create a complex noise environment, complicating the differentiation of background noise from damage signals using traditional hardware filtering methods. Previous Wavelet Transform and Empirical Mode Decomposition methods have been particularly challenging for the processing of high-dimensional data. This paper introduces a machine learning-based noise reduction method capable of significantly enhancing the signal-to-noise ratio. The paper takes into account the frequency domain characteristics of the waveform signal and employs principal component analysis for dimensionality reduction, extracting the principal components PC1 to PC3 from the eigenvalues. Ultimately, the feature vectors derived from principal components PC1 to PC3 were fed into the neural network for pattern recognition. We achieved an 88.2% accuracy rate in pattern recognition of acoustic emission signals using neural networks.</p>","PeriodicalId":100223,"journal":{"name":"ce/papers","volume":"8 2","pages":"854-860"},"PeriodicalIF":0.0,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143646124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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