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Shen H, Li X, Duan R, Zhao Y, Zhao J, Che H, Liu G, Xue Z, Yan C, Liu J, Jiang C, Li B, Chang H, Gao J, Yan Y. Quality evaluation of ground improvement by deep cement mixing piles via ground-penetrating radar. Nat Commun 2023; 14:3448. [PMID: 37301886 DOI: 10.1038/s41467-023-39236-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
Deep cement mixing piles are a key technology for treating settlement distress of soft soil subgrade. However, it is very challenging to accurately evaluate the quality of pile construction due to the limitations of pile material, large number of piles and small pile spacing. Here, we propose the idea of transforming defect detection of piles into quality evaluation of ground improvement. Geological models of pile group reinforced subgrade are constructed and their ground-penetrating radar response characteristics are revealed. We have also developed ground-penetrating radar attribute analysis technology and established ground-penetrating radar technical system for evaluating the quality of ground improvement. We further prove that the ground-penetrating radar results integrating single-channel waveform, multi-channel section and attributes can effectively detect the defects and stratum structure after ground improvement. Our research results provide a rapid, efficient and economic technical solution for the quality evaluation of ground improvement in soft soil subgrade reinforcement engineering.
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Affiliation(s)
- Hongyan Shen
- School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, 710065, P.R. China.
- Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi'an, 710065, P.R. China.
| | - Xinsheng Li
- Shaanxi Geo-mining Geophysical and Geochemical Exploration Team Co. Ltd., Xi'an, 710043, P.R. China
| | - Ruifeng Duan
- Shaanxi Geo-mining Geophysical and Geochemical Exploration Team Co. Ltd., Xi'an, 710043, P.R. China.
- National Engineering Research Center of Offshore Oil and Gas Exploration, Beijing, 100028, P.R. China.
| | - Yong Zhao
- Shaanxi Land Construction Surveying, Planning and Design Institute Co. Ltd., Shaanxi Land Construction Group, Xi'an, 710075, P.R. China
| | - Jing Zhao
- School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, 710065, P.R. China
- Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi'an, 710065, P.R. China
| | - Han Che
- School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, 710065, P.R. China
- Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi'an, 710065, P.R. China
| | - Guoxin Liu
- School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, 710065, P.R. China
- Shaanxi Key Laboratory of Petroleum Accumulation Geology, Xi'an, 710065, P.R. China
| | - Zhijia Xue
- School of Highway, Chang'an University, Xi'an, 710064, P.R. China
| | - Changgen Yan
- School of Highway, Chang'an University, Xi'an, 710064, P.R. China
| | - Jiwei Liu
- School of Highway, Chang'an University, Xi'an, 710064, P.R. China
| | - Chao Jiang
- Gansu Luqiao Highway Investment Co., Ltd., Lanzhou, 730030, P.R. China
| | - Boke Li
- Shaanxi Geo-mining Geophysical and Geochemical Exploration Team Co. Ltd., Xi'an, 710043, P.R. China
| | - Hong Chang
- Shaanxi Geo-mining Geophysical and Geochemical Exploration Team Co. Ltd., Xi'an, 710043, P.R. China
| | - Jianqiang Gao
- School of Highway, Chang'an University, Xi'an, 710064, P.R. China
| | - Yueying Yan
- School of Earth Sciences and Engineering, Xi'an Shiyou University, Xi'an, 710065, P.R. China.
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