Field test on dynamic compaction treatment of large area high-fill red clay foundation

Wang Bangtuan; Yang Long; Liu Wenlian; Xiao Haidong; Sui Sugang; Zhou Yanfei; Xu Pengfei

doi:10.20265/j.cnki.issn.1007-2993.2023-0940

Volume 39 Issue 2

Apr. 2025

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Wang Bangtuan, Yang Long, Liu Wenlian, Xiao Haidong, Sui Sugang, Zhou Yanfei, Xu Pengfei. Field test on dynamic compaction treatment of large area high-fill red clay foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 247-253. doi: 10.20265/j.cnki.issn.1007-2993.2023-0940

Citation:

Wang Bangtuan, Yang Long, Liu Wenlian, Xiao Haidong, Sui Sugang, Zhou Yanfei, Xu Pengfei. Field test on dynamic compaction treatment of large area high-fill red clay foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 247-253. doi: 10.20265/j.cnki.issn.1007-2993.2023-0940

Citation:

Wang Bangtuan, Yang Long, Liu Wenlian, Xiao Haidong, Sui Sugang, Zhou Yanfei, Xu Pengfei. Field test on dynamic compaction treatment of large area high-fill red clay foundation[J]. GEOTECHNICAL ENGINEERING TECHNIQUE, 2025, 39(2): 247-253. doi: 10.20265/j.cnki.issn.1007-2993.2023-0940

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Field test on dynamic compaction treatment of large area high-fill red clay foundation

doi: 10.20265/j.cnki.issn.1007-2993.2023-0940

Wang Bangtuan^{1, 2
,},
Yang Long³,
Liu Wenlian^{1, 2},
Xiao Haidong³,
Sui Sugang^{1, 2},
Zhou Yanfei³,
Xu Pengfei^{1, 2}

1.
Kunming Prospecting Design Institute of China Nonferrous Metals Industry Co., Ltd., Kunming 650051, Yunnan, China
2.
Yunnan Key Laboratory of Geotechnical Engineering and Geohazards, Kunming 650218, Yunnan, China
3.
Yunnan Construction and Investment Holding Group Co., Ltd., Kunming 650500, Yunnan, China

Received Date: 2023-12-27
Accepted Date: 2024-07-08
Rev Recd Date: 2024-07-02

Available Online: 2025-04-07

Publish Date: 2025-04-07

Abstract

Abstract

Taking the large-scale high-fill engineering of the infrastructure construction project of Yunnan Carbon Neutral Demonstration Industrial Park as the research background, experimental research was conducted on the filling process and dynamic compaction treatment effect of the red clay backfill foundation. The experimental results show that under the energy level of 5000 kN·m, the dynamic compaction method has significant effects on treating the red clay soil-rock layered fill foundation. Among the four filling conditions, condition 2 (using soil-rock layered fill with stone particle size ≤300 mm and soil-rock volume ratio of 5∶5) has the best dynamic compaction reinforcement effect on the foundation, with a characteristic value of foundation bearing capacity of over 240 kPa and a deformation modulus of more than 14 MPa. Based on the test results of this experiment and combined with the experience in Yunnan, specific suggestions for the construction of red clay backfill foundation dynamic compaction treatment in this region are proposed. The experimental research results can provide a reference for the design and construction of similar large-scale high-fill red clay backfill foundations.
- high-fill foundation,
- red clay,
- filling process,
- dynamic compaction treatment

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References(15)

References

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