High-precision intelligent monitoring of deformation and inclination of outer tank of LNG storage tank

doi:10.13474/j.cnki.11-2246.2025.0926

Bulletin of Surveying and Mapping ›› 2025, Vol. 0 ›› Issue (9): 157-162.doi: 10.13474/j.cnki.11-2246.2025.0926

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High-precision intelligent monitoring of deformation and inclination of outer tank of LNG storage tank

LI Zhen¹, LU Te¹, ZHANG Yunwei², LEI Jiangkai¹, WU Feng'an³

1. Pipe China Beihai Liquefied Natural Gas Co., Ltd., Beihai 536000, China;
2. Pipe China NanShan(Shandong) LNG Co., Ltd., Yantai 265706, China;
3. China Academy of Building Research Co., Ltd., Beijing 100013, China

Received:2025-02-05 Published:2025-09-29

Abstract

Abstract: This study enables intelligent LNG(liquefied natural gas)tank monitoring by combining ground LiDAR,UAV radar,static level gauges,and vibrating wire sensors to analyze outer tank deformation in Guangxi's Beihai LNG project.Findings reveal, 0～5 m tank zone exhibits convex deformation (max 28.7 mm)due to gravity-load-induced concrete creep; longitudinal deformation uniformity exceeds transverse,attributed to more uniform longitudinal prestress; surface flatness deviation (21.3 mm)exceeds standard,suggesting uneven settlement; relative settlement range (-1.26 to 0.82 mm)meets requirements; concrete circumferential stress inversely correlates with temperature as foundation constraints generate additional stress during thermal variation.

Key words: LNG tank, ground LiDAR, UAV radar, static level gauge, vibrating wire sensor

CLC Number:

P258

LI Zhen, LU Te, ZHANG Yunwei, LEI Jiangkai, WU Feng'an. High-precision intelligent monitoring of deformation and inclination of outer tank of LNG storage tank[J]. Bulletin of Surveying and Mapping, 2025, 0(9): 157-162.

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High-precision intelligent monitoring of deformation and inclination of outer tank of LNG storage tank

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