Study of the strength characteristics of dredger fill under the combined action of impact load and drainage
文献类型：期刊论文
| 作者 | Yang, Aiwu2,3; Liang, Zhenzhen3; Xu, Guofang1; Wu, Lei2 |
| 刊名 | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING
 |
| 出版日期 | 2021-05-07 |
| 页码 | 15 |
| 关键词 | Dredger fill impact load pore complexity microstructure SEM |
| ISSN号 | 1964-8189 |
| DOI | 10.1080/19648189.2021.1927196 |
| 英文摘要 | This paper studied the strength growth characteristics of Tianjin Binhai dredger fill, considering the impact load, drainage condition, and loading way of the impact. Based on UU and scanning electron microscope tests, the strength growth mechanism of the dredger fill was studied from both macroscopic and microscopic perspectives. The results showed that there an optimal impact load under the combined action of impact load and drainage, which can enhance the strength of the dredger fill to the maximum extent, its value is close to the structural yield stress. Furthermore, the methods of 'more impact rounds and fewer impact counts' and 'first light then heavy' can obtain the best effect of foundation reinforcement. Microstructural analysis showed that, with the increase in impact loads, the pore complexity and the number of pores increased, while the porosity, the number of soil particles, the pore circumference, and the total pore area decreased. This research also showed that the increase in the strength of dredger fill was mainly reflected by the increase in the internal friction angle under the combined actions of impact load and drainage, while the change of cohesion was rather small. The mathematical relationship between the internal friction angle and the pore characteristic can be expressed by a unary function, which increases with increasing pore complexity. |
| 资助项目 | National Natural Science Foundation of China[51978440] ; CAS Pioneer Hundred Talents Program[2018-040] ; Natural Science Foundation of Tianjin[19JCZDJC39700] ; Fundamental Research Funds for the Central Universities[2232021A-07] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000652130500001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27163]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Guofang |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan, Peoples R China 2.Tianjin Chengjian Univ, Key Lab Soft Soil Characterist & Engn Environm Ti, Tianjin, Peoples R China 3.Donghua Univ, Sch Environm Sci & Engn, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Aiwu,Liang, Zhenzhen,Xu, Guofang,et al. Study of the strength characteristics of dredger fill under the combined action of impact load and drainage[J]. EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,2021:15. |
| APA | Yang, Aiwu,Liang, Zhenzhen,Xu, Guofang,&Wu, Lei.(2021).Study of the strength characteristics of dredger fill under the combined action of impact load and drainage.EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING,15. |
| MLA | Yang, Aiwu,et al."Study of the strength characteristics of dredger fill under the combined action of impact load and drainage".EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING (2021):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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