The influence of temperature and time on water-rock interactions based on the morphology of rock joint surfaces

To study the influence of temperature and time on water-rock interactions, saturation experiments were conducted on ore rock and gneiss samples under different temperatures and soaking times. The rock joint surfaces of the soaked samples were scanned by a three-dimensional morphology measurement ins...

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Bibliographic Details
Published in:Bulletin of engineering geology and the environment 2019-07, Vol.78 (5), p.3385-3394
Main Authors: Wang, Fei, Cao, Ping, Cao, Ri-hong, Xiong, Xin-guang, Hao, Ji
Format: Article
Language:English
Subjects:
Earth and Environmental Science
Earth Sciences
Foundations
Geoecology/Natural Processes
Geoengineering
Geological engineering
Geotechnical Engineering & Applied Earth Sciences
Gneiss
Hydraulics
Interactions
Mathematical morphology
Measuring instruments
Morphology
Nature Conservation
Original Paper
Parameters
Rocks
Saturation
Statistical analysis
Statistical methods
Temperature
Temperature effects
Temperature rise
Water
Water temperature
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Summary:To study the influence of temperature and time on water-rock interactions, saturation experiments were conducted on ore rock and gneiss samples under different temperatures and soaking times. The rock joint surfaces of the soaked samples were scanned by a three-dimensional morphology measurement instrument. The mathematical statistical parameters, fractal parameters and power spectral densities of the rock joint morphology were obtained and investigated. As the immersion time increases, the parameters of the rock joint morphology increase, and the rates of increase are relatively stable, which indicate that time has a constant role in promoting water-rock interactions. Based on the constant influence of time, the effect of temperature on the water-rock interaction can be studied. As the saturation temperature increases, the rock joint morphology parameters increase, and the difference values of the joint morphology parameter increase first and then have a downward trend, reaching a maximum at 50 °C in the research. The results show that temperature alters the intensity of the water-rock interactions.
ISSN:1435-9529
1435-9537
DOI:10.1007/s10064-018-1315-5