Engineering characteristics of coral reef and site assessment of hydraulic reclamation in the South China Sea
文献类型：期刊论文
| 作者 | Wang, Xinzhi1,2; Ding, Haozhen1,2; Meng, Qingshan1,2; Wei, Houzhen1,2; Wu, Yang3; Zhang, Yong4 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2021-09-20 |
| 卷号 | 300页码:17 |
| 关键词 | Calcareous soil Hydraulic reclamation Deformation modulus Bearing capacity Vibro-flotation In-situ test |
| ISSN号 | 0950-0618 |
| DOI | 10.1016/j.conbuildmat.2021.124263 |
| 英文摘要 | Calcareous soil is a peculiar geotechnical medium which is utilized as land filler for engineering activities, such as the Maldives, Middle East, and South China Sea (SCS). Since the hydraulic dredged calcareous soil has a wide grain size distribution, irregular particle shape, crushable particles, high porosity, and poor uniformity, ground improvement was conducted to improve the bearing capacity and reduce foundation settlement. In this paper, the geological conditions, material characteristics, and mechanical behavior of dredger fill site on a coral reef in the SCS were studied. The densification of soil using deep vibro-compaction combined with impact rolling was investigated. An innovative method of sprinkling water during impact rolling was put forward to improve rolling efficiency and soil compactness. A set of modified in-situ measurement and calculation methods suitable for the compactness of calcareous soil were put forward. Based on in-situ test results, the relationship between the soil bearing capacity and blow count of dynamic penetration test was established. It was suggested that the two-point parallel and arranged in equilateral triangles vibro-flotation method is effective for the reinforcement of hydraulic dredged calcareous soil, and after vibro-flotation, the loose soil on the ground surface should be compacted with a 25 kJ three-side impact roller for 20 passes and then compacted with 25 t smooth vibratory roller until there are no visible wheel tracks. In addition, the methods of ground improvement, in-situ test, and foundation evaluation were proposed to contribute to coral reef engineering designers. This paper also provides new insights for coral reef foundation filling and improvement around the world. |
| 资助项目 | Science and Technology Fundamental Resources Investigation Project[2018FY100103] ; National Natural Science Foundation of China[41572297] ; National Natural Science Foundation of China[41877260] ; National Natural Science Foundation of China[41877267] ; National Natural Science Foundation of China[51908153] ; Natural Science Foundation of Zhejiang Province[LHY19E090002] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000687751300002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27859]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Xinzhi |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Guangzhou Univ, Sch Civil Engn, Guangzhou 510006, Peoples R China 4.Zhejiang Univ Technol, Coll Civil Engn, Hangzhou 310023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xinzhi,Ding, Haozhen,Meng, Qingshan,et al. Engineering characteristics of coral reef and site assessment of hydraulic reclamation in the South China Sea[J]. CONSTRUCTION AND BUILDING MATERIALS,2021,300:17. |
| APA | Wang, Xinzhi,Ding, Haozhen,Meng, Qingshan,Wei, Houzhen,Wu, Yang,&Zhang, Yong.(2021).Engineering characteristics of coral reef and site assessment of hydraulic reclamation in the South China Sea.CONSTRUCTION AND BUILDING MATERIALS,300,17. |
| MLA | Wang, Xinzhi,et al."Engineering characteristics of coral reef and site assessment of hydraulic reclamation in the South China Sea".CONSTRUCTION AND BUILDING MATERIALS 300(2021):17. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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