Volume 7, Issue 3, June 2018, Page: 138-143
Characteristics and Evaluation of Coral Mixed Soil Base
Ju Yanfei, The New Material and Maintenance of Maritime Structures Reinforcement Technology in Hubei Province Key Laboratory, Wuhan, China; Wuhan Harbour Engineering Quality Test Co. Ltd, Wuhan, China
Min Daogui, Wuhan Harbour Engineering Quality Test Co. Ltd, Wuhan, China; CCCC Wuhan Harbour Engineering Design and Research Co. Ltd., Wuhan, China
Received: May 14, 2018;       Accepted: Jun. 4, 2018;       Published: Jun. 15, 2018
DOI: 10.11648/j.earth.20180703.15      View  1502      Downloads  55
Abstract
With the human activities gradually into the ocean, especially the implementation of the strategy of the Belt and Road, engineering construction will be more and more involved in the coral sand foundation, and the survey of foundation design specification, has not yet listed coral reef types of geotechnical, field test research on characteristics of coral sand foundation scholars both at home and abroad. However, after the coral reefs are artificially disturbed and blown into the land area, the mixed land foundation with coarse and fine grained soil is formed. In this paper, the characteristics of non-uniform and weak interbedded coral soil are obtained by dynamic field touchdown, pit exploration, particle analysis and Rayleigh wave method. Through triaxial shear tests with different porosity ratios, the results show that the shear strength index of coral sand is higher than that of natural silt sand and silt, and the coralline sand has certain cohesion. Through field loading plate test and dynamic contrast analysis, the reasonable loading plate impact depth, dynamic agent number and coral hybrid bearing capacity of soil foundation has good correlation, and through the analysis of dynamic agent number and the foundation bearing capacity, dynamic agent number and the experience formula of the modulus of deformation, and research has certain reference value to similar projects.
Keywords
Coral Mixed Soil, Rayleigh Wave Method, Void Ratio, Shear Strength, Load Plate Test, Dynamic Contact, Depth of Influence, Foundation Bearing Capacity
To cite this article
Ju Yanfei, Min Daogui, Characteristics and Evaluation of Coral Mixed Soil Base, Earth Sciences. Vol. 7, No. 3, 2018, pp. 138-143. doi: 10.11648/j.earth.20180703.15
Copyright
Copyright © 2018 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Reference
[1]
Sun Zongxun, Zhao Huanting. Coral reef engineering geology - new scienc [J]. Hydrogeology and Engineering Geology, 1998 (1): 1-4.
[2]
Sun Zongxun, Research on the nature of coral sand engineering in the Nansha Islands [J]. Tropical Marine, 2000, 19 (2): 1-8.
[3]
Huo Ying Xi, Wang Weizhi, Qiu Qinchang, Li Yan, et al. Compaction effects for reclamation fill of coralline in Red Sea region. Port and Watermay Engineering, 2010, 446 (10): 82-87.
[4]
Wang Baofeng, Chen Liang. A Coastal Coral Sand Foundation Settlement Case Study. Project Quality, 2016, 34 (8): 78-81.
[5]
Yan Yupin, Ke YouQin. Introduction to coral reef engineering geology characteristic and foundation treatment. Resources and environmental engineering, 2008 (22): 47-49.
[6]
Zhao HuanTing, Song ChaoJin, LuBo. At the beginning of coral reef engineering geology theory. Journal of Engineering Geology, 1996, 4 (1): 86-90.
[7]
She-Yinpeng, LYU Yaru, LI Feng, Yuan-Jiamin. Experimental analyses of shearing mechanism of coral sand [J]. Journal of PLA University of Science and Technology (Natural Science Edition), 2017, 2: 29-35.
[8]
Zhu Changqi, Liu Congquan. Research on the nature of coral sand site in xisha yongxing island [J]. Rock and Soil Mechanics. 1995, 16 (2): 35-41.
[9]
Yang-Yongkang, Yang-Wu, Ding-XueWu, Xie-ShuLing, eng-ChunYan, Experimental study on the bearing capacity of coral debris sand in xisha islands [J]. Journal of guangzhou university (natural science edition), 2017, 6: 61-66.
[10]
Li Yangyang, Fang Xiangwei, Huang xuefeng, Song Pin, Su Faxin. Study of Plate Load Model on coral sand foundation [J]. Journal of Chongqing university of technology (natural science), 2017, 10: 114-121.
[11]
The editorial board of the engineering geological handbook. Engineering geological manual (the fourth edition) [M]. Beijing: China construction industry press, 2006.
[12]
Xu Ning. Talk about the engineering geology of coral reef soil [J]. Journal of geotechnical engineering, 1989, 11 (4): 81-88.
[13]
Ju YanFei, Min Daogui, Guan Xin. Method of detecting soft clay mass in sandy soil based on Rayleigh wave [J]. Port and waterway Engineering, 2018, 3: 159-165.
Browse journals by subject