Chen Geng
Hohai University
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Publication
Featured researches published by Chen Geng.
Marine Georesources & Geotechnology | 2017
Chen Geng; Chen Yong-hui; Shi Jiangwei; Chen Long
ABSTRACT Plastic vertical drainage is widely used in vacuum preloading for soft soil treatment. However, plastic vertical drainage has a number of disadvantages such as it only provides drainage paths in vertical directions and the distribution of soil strength is not uniform. A new technique, prefabricated vertical–horizontal drainage, was developed in this study to shorten the consolidation time of ultrasoft soil. Using one vertical drainage tube and four horizontal drainage tubes, prefabricated vertical–horizontal drainage provides drainage paths not only in vertical but also in horizontal directions. An analytical solution was derived to calculate the degree of soil consolidation when using the prefabricated vertical–horizontal drainage technique. Field tests were conducted to evaluate the effectiveness of prefabricated vertical–horizontal drainage and to verify the proposed analytical solution. It was found that consolidation time of soft clays using prefabricated vertical–horizontal drainage was 50% lower than plastic vertical drainage. Moreover, the average undrained shear strength of soil treated by the prefabricated vertical–horizontal drainage technique was approximately 30% larger than that treated by the plastic vertical drainage technique. The degree of soil consolidation estimated from the proposed analytical solution showed good agreement with field measurements. This implies that the proposed analytical solution can be used to directly estimate the degree of consolidation when the soil is treated by prefabricated vertical–horizontal drainage.
Archive | 2013
Wang Xinquan; Feng Jinrong; Chen Chunlai; Zheng Jingge; Xu Leiting; Chen Yonghui; Chen Long; Chen Geng
Archive | 2014
Chen Geng; Chen Yonghui; Chen Long; Wang Ying; Li Xing
Archive | 2017
Wang Fuxi; Chen Yonghui; Chen Long; Chen Mingyu; Chen Geng; Liu Xu
Archive | 2017
Chen Yonghui; Wang Bo; Chen Geng; Chen Mingyu; Chen Long; Gao Shihu
Archive | 2017
Chen Geng; Chen Yonghui; Li Bingyi; Chen Long; Yu Jiaren
Archive | 2017
Chen Geng; Chen Yonghui; Chen Long; Cheng Xiao; Wang Bo
Archive | 2016
Peng Zhonghao; Chen Geng; Chen Yonghui; Chen Long; Zhao Zirong
Archive | 2016
Chen Yonghui; Zhao Zirong; Chen Geng; Liu Peng; Chen Long; Wang Bo; Liu Xu
Archive | 2016
Liu Peng; Chen Yonghui; Zhao Zirong; Chen Geng