|本期目录/Table of Contents|

[1]阳军生,王子建,汤 宇,等.基于图像三维重建的隧道喷射混凝土回弹率测定方法研究[J].建筑科学与工程学报,2024,41(02):106-114.[doi:10.19815/j.jace.2022.04046]
　YANG Junsheng,WANG Zijian,TANG Yu,et al.Research on method for measuring rebound rate of shotcrete in tunnels based on image 3D reconstruction[J].Journal of Architecture and Civil Engineering,2024,41(02):106-114.[doi:10.19815/j.jace.2022.04046]
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基于图像三维重建的隧道喷射混凝土回弹率测定方法研究(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
41卷
期数:
2024年02期
页码:
106-114
栏目:
桥隧工程
出版日期:
2024-03-30

文章信息/Info

Title:
Research on method for measuring rebound rate of shotcrete in tunnels based on image 3D reconstruction
文章编号:
1673-2049(2024)02-0106-09
作者:
阳军生1,王子建2,汤 宇3,梁 雄1,刘德安3
(1. 中南大学 土木工程学院,湖南 长沙 410075; 2. 湖南航天建筑工程有限公司,湖南 长沙 410205; 3. 中铁五局集团第一工程有限责任公司,长沙 湖南 410021)
Author(s):
YANG Junsheng1, WANG Zijian2, TANG Yu3, LIANG Xiong1, LIU Dean3
(1. School of Civil Engineering, Central South University, Changsha 410075, Hunan, China; 2. Hunan Aerospace Construction Engineering Co., Ltd., Changsha 410205, Hunan, China; 3. China Railway Fifth Bureau Group First Engineering Co., Ltd., Changsha 410021, Hunan, China)
关键词:
隧道;  喷射混凝土回弹率;  三维图像点云;  图像三维重建
Keywords:
tunnel;  shotcrete rebound rate;  3D image point cloud;  image 3D reconstruction
分类号:
TU317
DOI:
10.19815/j.jace.2022.04046
文献标志码:
A
摘要:
针对复杂隧道施工环境下如何快速、准确测量喷射混凝土回弹率的问题,基于机器视觉三维重建技术中的主要理论和算法,提出了一种新的隧道喷射混凝土回弹率测定方法。该方法通过坐标标记版和手持相机快速采集图像,基于运动恢复结构(SFM)算法、基于面片的密集匹配(PMVS)算法与三角剖分原则实现隧道实际开挖轮廓及初支内轮廓的三维曲面网格模型的建立; 通过网格射线法,将隧道实际开挖轮廓与初支内轮廓三维网格模型进行空间差值求解,获得初支实际有效的喷射混凝土体积; 最后,结合实际喷射混凝土总用量,完成喷射混凝土回弹量的测定,并以郑万高铁巴东隧道为依托进行现场试验与应用。结果表明:所提方法测得的喷射混凝土回弹率比传统现场称重法测试结果更为合理,准确性更高,说明该方法能够较好地实现喷射混凝土回弹率的测试; 在现场应用中,结合喷射混凝土回弹率的测试结果提出的降低回弹率的施工质量控制建议,现场采用后施工良好,保证了隧道施工质量; 该测定方法简便高效、成本低、不干扰施工,具有较好的工程应用价值。
Abstract:
Aiming at the problem of how to quickly and accurately measure the rebound rate of shotcrete in complex tunnel construction environments, a new method for measuring the rebound rate of shotcrete in tunnels was proposed based on the main theories and algorithms in machine vision 3D reconstruction technology. The method used coordinate markers and handheld cameras to quickly capture images, and based on the structure of motion recovery(SFM)algorithm, patch-based multi-view stereo(PMVS)algorithm, and triangulation principle, a three-dimensional surface mesh model of the actual excavation contour and initial support inner contour of the tunnel was established. By using the grid ray method, the spatial difference between the actual excavation contour of the tunnel and the three-dimensional mesh model of the initial support inner contour was solved to obtain the actual effective volume of shotcrete for the initial support. Finally, based on the actual total amount of shotcrete, the determination of the rebound amount of shotcrete was completed. Field tests and applications were carried out in the Badong tunnel of Zhengwan high speed railway. The results show that the rebound rate of shotcrete measured by the proposed method is more reasonable and accurate than that of the traditional field weighing method, indicating that the method can better achieve the rebound rate of shotcrete. In on-site application, combined with the test results of the rebound rate of shotcrete, suggestions for reducing the rebound rate in construction quality control is well constructed after being adopted on site, ensuring the quality of tunnel construction. The measurement method has the advantages of simplicity, efficiency, low cost, no interference with construction, and is of good engineering application.

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备注/Memo

备注/Memo:
收稿日期:2023-04-11
基金项目:中铁五局集团2018年科技开发计划项目(201805)
作者简介:阳军生(1969-),男,工学博士,教授,博士生导师,E-mail:jsyang@csu.edu.cn。
更新日期/Last Update: 2024-03-25