A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Revisiting the liquefaction resistance of calcareous sand using X-ray CT
Abstract The microstructure of calcareous sand sampled from the South China Sea Islands was investigated using X-ray microtomography (μCT). μCT images directly evidenced the amount of inner pores in the calcareous sand. The image analysis presented a map of the inner pore distribution and volume ratio compared with the volume of solid particles, showing that the inner pore distribution was affected by the particle size. Furthermore, owing to the special structure of calcareous sand particles, crushed particles were observed during cyclic loading, inducing obvious strain and releasing air from the inner pore of the particle, which subsequently desaturated the specimen and increased the liquefaction resistance. This evidence of inner pores in calcareous sand provides another way to examine the undrained response by considering the crushability of the calcareous sand.
Highlights The inner pores were existed in calcareous sand. The liquefaction resistance of calcareous sands were affected by inner pores. The volume ratio of inner pores with different particle sizes were investigated.
Revisiting the liquefaction resistance of calcareous sand using X-ray CT
Abstract The microstructure of calcareous sand sampled from the South China Sea Islands was investigated using X-ray microtomography (μCT). μCT images directly evidenced the amount of inner pores in the calcareous sand. The image analysis presented a map of the inner pore distribution and volume ratio compared with the volume of solid particles, showing that the inner pore distribution was affected by the particle size. Furthermore, owing to the special structure of calcareous sand particles, crushed particles were observed during cyclic loading, inducing obvious strain and releasing air from the inner pore of the particle, which subsequently desaturated the specimen and increased the liquefaction resistance. This evidence of inner pores in calcareous sand provides another way to examine the undrained response by considering the crushability of the calcareous sand.
Highlights The inner pores were existed in calcareous sand. The liquefaction resistance of calcareous sands were affected by inner pores. The volume ratio of inner pores with different particle sizes were investigated.
Revisiting the liquefaction resistance of calcareous sand using X-ray CT
Li, Yubo (author) / Li, Bo (author) / Gong, Jian (author)
2020-09-19
Article (Journal)
Electronic Resource
English
Liquefaction resistance of bio-cemented calcareous sand
| British Library Online Contents | 2018
Liquefaction resistance of bio-cemented calcareous sand
| British Library Online Contents | 2018
Liquefaction resistance of bio-cemented calcareous sand
| British Library Online Contents | 2018
Liquefaction Modeling for Biocemented Calcareous Sand
| ASCE | 2021
Liquefaction resistance of MICP treated silica and calcareous sand with carbon fiber
| Springer Verlag | 2025