<<
[an error occurred while processing this directive] | [an error occurred while processing this directive] >>
Fractal and Hydro-Chemical Characteristics of Microscopic Karst Morphology Based on Dissolution Experiments
(1 China Railway Southwest Research Institute Co. Ltd., Chengdu 611731; 2 Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021)
Abstract In order to effectively prevent and control the geological hazards of water inflow and mud bursts in large and long karst tunnels, it is necessary to study the karst development law and the karst dissolution mechanism.Based on the existing research achievements, experimental devices are developed independently, and dissolution experiments are conducted for different working conditions. Based on a preliminary analysis of the results of the dissolution experiments, the micro-karst fractal characteristics are analyzed by fractal theory, and the hydro-chemical dynamic parameters and the hydro-chemical fractal characteristics of the solution are studied by hydro-chemical dynamic theory. The correlation between the fractal characteristics of karst morphology and the hydro-chemical dynamic characteristics is further explored. The study shows that the correlation between the hydrochemical-fractal evaluation index and the micro-karst fractal index is significant, which lays an experimental and theoretical foundation for understanding the karst groundwater mechanism and performing in-depth research on karst development evaluation techniques
Abstract：
In order to effectively prevent and control the geological hazards of water inflow and mud bursts in large and long karst tunnels, it is necessary to study the karst development law and the karst dissolution mechanism.Based on the existing research achievements, experimental devices are developed independently, and dissolution experiments are conducted for different working conditions. Based on a preliminary analysis of the results of the dissolution experiments, the micro-karst fractal characteristics are analyzed by fractal theory, and the hydro-chemical dynamic parameters and the hydro-chemical fractal characteristics of the solution are studied by hydro-chemical dynamic theory. The correlation between the fractal characteristics of karst morphology and the hydro-chemical dynamic characteristics is further explored. The study shows that the correlation between the hydrochemical-fractal evaluation index and the micro-karst fractal index is significant, which lays an experimental and theoretical foundation for understanding the karst groundwater mechanism and performing in-depth research on karst development evaluation techniques
.Fractal and Hydro-Chemical Characteristics of Microscopic Karst Morphology Based on Dissolution Experiments[J] MODERN TUNNELLING TECHNOLOGY, 2018,V55(2): 110-120
2018, Vol. 55 