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Study on the Reinforcement Mechanism of High-Energy-Level Dynamic Compaction Based on FDM–DEM Coupling

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成果类型:
期刊论文
作者:
Sun, Yiwei;Huang, Kan*;Chen, Xiangsheng;Zhang, Dongmei;Lou, Xiaoming;...
通讯作者:
Huang, Kan;Chen, XS;Huang, K
作者机构:
[Chen, Xiangsheng; Sun, Yiwei; Chen, XS; Huang, Kan; Han, Kaihang; Huang, K] Shenzhen Univ, Coll Civil & Transportat Engn, Shenzhen 518060, Peoples R China.
[Lou, Xiaoming; Sun, Yiwei] Shanghai Geoharbour Construct Grp Co Ltd, Shanghai 200434, Peoples R China.
[Huang, Kan; Huang, K; Wu, Qijiang] Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410114, Peoples R China.
[Zhang, Dongmei; Huang, Zhongkai] Tongji Univ, Dept Geotech Engn, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China.
通讯机构:
[Chen, XS ; Huang, K] S
[Huang, K ] C
Shenzhen Univ, Coll Civil & Transportat Engn, Shenzhen 518060, Peoples R China.
Changsha Univ Sci & Technol, Sch Civil Engn, Changsha 410114, Peoples R China.
语种:
英文
关键词:
foundation treatment;high-energy dynamic compaction;FDM–DEM coupling;granular soil;vertical dynamic stress;effective reinforcement depth;reinforcement mechanism
期刊:
Mathematics
ISSN:
2227-7390
年:
2023
卷:
11
期:
13
页码:
2807-
基金类别:
Conceptualization, Y.S.; methodology, Y.S.; software, Y.S., X.C. and D.Z.; validation, Y.S. and X.L.; investigation, Y.S. and Q.W.; resources, Y.S. and X.L.; data curation, X.L. and K.H. (Kaihang Han); writing—original draft preparation, Y.S.; writing—review and editing, Y.S. and X.L.; visualization, Y.S.; supervision, X.L and Z.H.; funding acquisition, K.H. (Kan Huang). All authors have read and agreed to the published version of the manuscript. This research was funded by the National Key Research and Development Program of China (No. 2022YFC3800905), the National Natural Science Foundation of China (No. 52078060), and the International Cooperation and Development Project of Double-First-Class Scientific Research at Changsha University of Science and Technology (No. 2018IC19).
机构署名:
本校为通讯机构
院系归属:
土木工程学院
摘要:
The high-energy-level dynamic compaction method is widely used in various foundation treatment projects, but its reinforcement mechanism still lags behind the practice. In view of this, a three-dimensional fluid-solid coupling dynamic analysis model was established on the basis of the FDM-DEM coupling method. The variation trends of crater depth, soil void ratio, vertical additional dynamic stress, and pore water pressure during the process of dynamic compaction were analyzed. The results indicate that the curvature of the crater depth fitting curve gradually decreases with the increase in str...

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