Update and upgrade of data acquisition system for TLJ geotechnical centrifuge

WENG Xiaolin; HU Jibo; XIE Yongli; YUE Xiabing; WU Hao; ZHANG Zhiqiang

doi:10.11779/CJGE2024S10018

Volume 46 Issue S1

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Chinese Journal of Geotechnical Engineering > 2024 > 46(S1): 59-63. > DOI: 10.11779/CJGE2024S10018

WENG Xiaolin, HU Jibo, XIE Yongli, YUE Xiabing, WU Hao, ZHANG Zhiqiang. Update and upgrade of data acquisition system for TLJ geotechnical centrifuge[J]. Chinese Journal of Geotechnical Engineering, 2024, 46(S1): 59-63. DOI: 10.11779/CJGE2024S10018

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Update and upgrade of data acquisition system for TLJ geotechnical centrifuge

WENG Xiaolin^{1, 2,},
HU Jibo^{1, 2, ,},
XIE Yongli^{1, 2},
YUE Xiabing^{1, 2},
WU Hao^{1, 2},
ZHANG Zhiqiang³

1.
Highway College of Chang'an University, Xi'an 710064, China
2.
Key Laboratory of Highway Engineering for Special Regions, Ministry of Education, Chang'an University, Xi'an 710064, China
3.
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China

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Received Date: April 28, 2024

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Abstract

The TLJ-3 geotechnical centrifuge from Chang'an University has been in operation for 18 years since it was built and put into use in 2004, making it the longest running geotechnical centrifuge in this series. Due to the low integration of electronic devices at the beginning of the 21st century, the early data acquisition systems of TLJ centrifuge gradually could not meet the high-precision and large data throughput collection needs of the existing experimental data. Based on the wireless transmission technology, the problem of data transmission caused by changes in contact resistance of electric slip rings is eliminated. The fiber optic integration of multiple sensors is used to miniaturize the sensors, non-contact displacement field scanning is used to achieve full section monitoring of the ground surface, and the Open CV image stitching technology is used to solve the problem of image distortion. The upgraded TLJ-3 geotechnical centrifuge has served several research projects with good performance.
- geotechnical centrifuge,
- data acquisition system,
- upgradation,
- wireless transmission technology

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[1]	CRAIG W H. Geotechnical centrifuges: past, present and future[M]// Geotechnical Centrifuge Technology. Boca Raton: CRC Press, 2018: 1-18.
[2]	BUCKY Philip Barnett. Use of Models for the Study of mining Problems[M]. Columbia: American Institute of Mining and Metallurgical Engineers, 1931.
[3]	王年香, 章为民. 土工离心模型试验技术与应用[M]. 北京: 中国建筑工业出版社, 2015. WANG Nianxiang, ZHANG Weimin. Geotechnical Centrifuge Model Test Technology and its Application[M]. Beijing: China Architecture & Building Press, 2015. (in Chinese)
[4]	陈生水, 顾行文, 任国峰, 等. NHRI-400 g·t大型土工离心机升级改造[J]. 岩土工程学报, 2020, 42(增刊2): 7-12. https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2020S2002.htm CHEN Shengshui, GU Xingwen, REN Guofeng, et al. Upgrade of NHRI-400 g·t large geotechnical centrifuge[J]. Chinese Journal of Geotechnical Engineering, 2020, 42(S2): 7-12. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-YTGC2020S2002.htm
[5]	贾立翔, 施斌, 魏广庆, 等. 土工离心机光纤光栅测试系统及其模型试验研究[J]. 岩土工程学报, 2017, 39(5): 896-905. doi: 10.11779/CJGE201705014 JIA Lixiang, SHI Bin, WEI Guangqing, et al. Fiber Bragg grating test system and model tests based on geotechnical centrifuge[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(5): 896-905. (in Chinese) doi: 10.11779/CJGE201705014
[6]	王新伦, 赵文凯, 林明, 等. 定点高速闪光摄影技术在土工离心机中的应用[J]. 长江科学院院报, 2012, 29(3): 87-90. https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201203023.htm WANG Xinlun, ZHAO Wenkai, LIN Ming, et al. Fixed-spot high-speed flash photography technique applied to geotechnical centrifuge[J]. Journal of Yangtze River Scientific Research Institute, 2012, 29(3): 87-90. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-CJKB201203023.htm
[7]	PULLI K, BAKSHEEV A, KORNYAKOV K, et al. Real-time computer vision with OpenCV[J]. Communications of the ACM, 2012, 55(6): 61-69. doi: 10.1145/2184319.2184337
[8]	董岳林. 深厚黄土地层湿陷对地铁盾构隧道结构变形的影响研究[D]. 西安: 长安大学, 2018. DONG Yuelin. Effect of Tunnel Deformation on Metro Shield Tunnel Structure in Deep Loess Areas[D]. Xi'an: Changan University, 2018. (in Chinese)
[9]	翁效林, 陈禹勋, 贾金昌, 等. 大跨度双连拱隧道下穿既有地铁近接施工的围岩力学特征模型试验研究[J]. 建筑科学与工程学报, 2023, 40(6): 137-147. https://www.cnki.com.cn/Article/CJFDTOTAL-XBJG202306015.htm WENG Xiaolin, CHEN Yuxun, JIA Jinchang, et al. Model test study on mechanical characteristics of surrounding rock of long-span double-arch tunnel underpassing existing subway close-spaced construction[J]. Journal of Architecture and Civil Engineering, 2023, 40(6): 137-147. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-XBJG202306015.htm