Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction

DAI Xuan; WANG Cheng-zhi; CAI Jing; QIAO Yang; LIU Lei

doi:10.19818/j.cnki.1671-1637.2026.323

Volume 26 Issue 8

Aug. 2026

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DAI Xuan, WANG Cheng-zhi, CAI Jing, QIAO Yang, LIU Lei. Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction[J]. Journal of Traffic and Transportation Engineering, 2026, 26(8): 202-216. doi: 10.19818/j.cnki.1671-1637.2026.323

Citation:

DAI Xuan, WANG Cheng-zhi, CAI Jing, QIAO Yang, LIU Lei. Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction[J]. Journal of Traffic and Transportation Engineering, 2026, 26(8): 202-216. doi: 10.19818/j.cnki.1671-1637.2026.323

Citation:

DAI Xuan, WANG Cheng-zhi, CAI Jing, QIAO Yang, LIU Lei. Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction[J]. Journal of Traffic and Transportation Engineering, 2026, 26(8): 202-216. doi: 10.19818/j.cnki.1671-1637.2026.323

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Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction

doi: 10.19818/j.cnki.1671-1637.2026.323

DAI Xuan^{1, 2, 3
,},
WANG Cheng-zhi¹,
CAI Jing^{1, 2
,
,},
QIAO Yang¹,
LIU Lei³

1.
College of Transportation Science and Engineering, Civil Aviation University of China, Tianjin 300300, China
2.
Engineering Research Center of Airport Intelligent Construction and Industrialization, CAAC, Tianjin 300456, China
3.
Shandong Engineering Research Center of Civil Aviation Digital Innovation, Taian 271000, Shandong, China

Funds:

Fundamental Research Funds for the Central Universities 3122026054

Tianjin Enterprise Science and Technology Special Commissioner Project 25YDTPJC00370

Tianjin Transportation Science and Technology Project 2025-70

More Information

Corresponding author: CAI Jing, professor, PhD, E-mail: caijing75@163.com
Received Date: 2025-12-30
Accepted Date: 2026-05-27
Rev Recd Date: 2026-03-27
Publish Date: 2026-08-28

Abstract

Abstract

To quantify the spatial distribution characteristics of compactness and their effects on pavement mechanical performance, an airport intelligent compaction project was analyzed, an application framework for the information fusion between building information model (BIM) and intelligent compaction was established, and a compaction weakness composite index for evaluating the spatial distribution of subgrade compaction was proposed. Through California bearing ratio tests on subgrade soil, the relationship between the compaction meter value and the subgrade reaction modulus was analyzed. A three-dimensional finite element numerical analysis model was established to investigate the effect of the spatial distribution of compactness on the mechanical performance of airport pavement. Finally, an integrated analysis method for intelligent compaction and pavement structure mechanical performance based on the BIM model was developed. The results indicate that under the same area ratio of compaction weak zones, the adjacency index of weak zones can differ by 2.5 times; the compaction weakness composite index can reflect the comprehensive effect of compaction pass rate, compaction weakness degree, and spatial distribution of weak zones; the compaction weakness composite index increases with the increase of the area ratio of compaction weak zones, and the degree of dispersion also gradually increases. Furthermore, the subgrade reaction modulus exhibits a power exponential growth relationship with the compaction meter value. The maximum flexural-tensile stress of the pavement increases with the increase of the compaction weakness composite index, and this relationship can be described by a cubic polynomial. Through parametric BIM modeling, attribute information extension, visual programming, fusion of intelligent compaction data and BIM data, and integrated analysis of BIM and mechanical model, the dynamic analysis of pavement structure stress and service life during the operation period can be realized based on intelligent compaction data, pavement structure geometric data, and aircraft load data, thereby improving the subgrade compaction level. The research results provide a reference for expanding the value of intelligent compaction data and realizing the integrated analysis of intelligent construction and operation-maintenance of airport pavement engineering.
- airport engineering,
- intelligent compaction,
- dynamic analysis model,
- pavement mechanical performance,
- building information modeling,
- weak zone distribution

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References

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Evaluation method for effect of subgrade weak zone distribution on mechanical performance of pavement based on BIM and intelligent compaction

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