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Yan Gao, Zixin Guo and Quan Yuan
The mechanical response and deformation characteristics in calcareous sand foundations during pile driving and setup were studied using model tests combined with the technical methods of tactile pressure sensors and close-range photogrammetry. Different ...
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Kangyu Wang, Zhenhuan Chen, Zhe Wang, Qianshen Chen and Dihui Ma
Calcareous sand is a special marine soil rich in calcium carbonate minerals, characterized by brittle particles. It is, therefore, widely used as a filling material in the construction of islands and reefs. In this study, a series of cyclic tri-axial tes...
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Zhen-Zhen Nong, Qing Wang, He-Ying Hou, Peng-Ming Jiang and Ai-Zhao Zhou
Calcareous sand, a type of marine sediment formed from the skeletal remains of marine life, exhibits unique characteristics such as high porosity and fragility due to its biological origin. Particle breakage is a key attribute of calcareous sand. Given t...
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Ziyu Wang, Xiangyu Zhao, Xin Chen, Peng Cao, Liang Cao and Wenjing Chen
To improve the mechanical properties of calcareous sand, it is proposed that microbial induced calcium carbonate precipitation (MICP) technology be used. A series of solidification tests were conducted in natural seawater and freshwater environments. The...
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Han Wang, Qingjie Zhou, Shuo Wei, Xiangyang Xue, Xinghua Zhou and Xiaobo Zhang
This paper proposed an MSC-Transformer model based on the Transformer?s neural network, which was applied to seabed sediment classification. The data came from about 2900 km2 of seabed area on the northern slope of the South China Sea. Using the submarin...
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Zhihui Wan, Heng Liu, Feng Zhou and Guoliang Dai
Post-grouted piles, as a foundation form for large-span and large-scale structures on calcareous sand, are expected to provide a high bearing capacity, but research on the response of post-grouted piles subjected to axial load in calcareous sand is still...
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Weifeng Jin, Ying Tao and Rongzhong Chen
For crushable calcareous sand, the stress-dilatancy curve has a significant turning hook around the peak stress ratio, the hook contains the main features of the loading process, including the phase transformation point and the peak stress ratio point. H...
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Lu Liu, Xiaofei Yao, Zhanpeng Ji, Hongmei Gao, Zhihua Wang and Zhifu Shen
This study examines the cyclic behavior of calcareous sand obtained from the South China Sea. A series of undrained cyclic triaxial tests were performed on the calcareous sand with various relative densities, cyclic stress ratios, and effective confining...
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Mostafa Adresi and Giuseppe Lacidogna
Since the roller-compacted concrete pavement (RCCP) is almost smooth due to roller vibrations in the construction process, the lack of macro-texture prevents it from being used as a final surface. This study has made efforts to improve the RCCP by propos...
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Xin Liu, Chaoyang Tian and Hengxing Lan
This paper introduces a rubber?calcareous sand mixture as a lightweight building material in offshore engineering. The mechanical properties of mixtures of varying rubber contents were investigated by performing a one-dimensional (1-D) compression test i...
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