Groundwater Chemical Kinetics and Fractal Characteristics of Karst Tunnel, 1st ed. 2020

The key to the solution of geological hazards such as Karst water inrush and mud burst in tunnel lies in the accurate prediction or detection of Karst and groundwater. By means of on-site monitoring, theoretical analysis and indoor simulation experiments, the authors conduct in-depth research on the characteristics of water-bearing media and their mechanism of action, and explored the relevance of "Karst morphology", "Karst groundwater" and "fractal characteristics". An evaluation model of Karst development degree based on hydrochemical kinetic parameters and fractal index of Karst morphology is established. Based on the combination of Karst groundwater dynamics, hydrochemistry, water-rock interaction theory and fractal theory, the hydrochemical Kinetics and fractal index evaluation technique for Karst development is proposed. It provides a new theory and method for improving the accuracy of Karst and groundwater forecasting. The research results are of practical and guiding significance to the construction, Karst geological disasters prevention and management of various underground projects in Karst areas. Engineers and technicians, hydrogeological engineering geologists, and college students engaged in tunnel and underground engineering will find it valuable.

Cangsong Li, male, born in 1971, Ph.D., professor-level senior engineer, is the deputy chief engineer of China Railway Southwest Research Institute Co., Ltd. He is one of the winners of Mao Yisheng Railway Engineer Award, the young top talent in science and technology of China Railway Group Limited, the young and middle-aged expert with outstanding contributions to China Railway Group Limited, and one of the 11th batch of Reserve Candidates for Sichuan Provincial Academic and Technical Leaders. In July 1997, he graduated from the former Changchun College of Geology with a master's degree in Hydrogeology and Engineering Geology, and in January 2007, he obtained a doctorate degree in Bridge and Tunnel Engineering from Southwest Jiaotong University. Li has been engaged in the research of tunnel engineering geology, hydrogeology and geophysical prospecting technology for a long time, and has high attainments in the research of geological advance prediction, karst and groundwater action mechanism in the process of tunnel construction. He participated in 10 key scientific research projects above the provincial and ministerial level, research on some of which were led by him. He also completed one joint research fund project of the National Natural Science Foundation of China and one national 863 project as the main participant, and presided over many horizontal scientific research projects and geological advance forecast production projects for tunnel construction. His researches have been awarded 1 special award for science and technology, 1 first prize, 2 second prize by China Railway Corporation, 1 second prize of science and technology award by China Railway Society, 1 Science & Technology Progress Award by Guizhou Highway & Transportation Society, and successfully applied for a national invention patent (a geological prediction method for TBM construction). He is currently a member of the Railway Branch of the China Physical Science, a member of

Points out correlation between the tunnel hydrodynamic characteristics of Karst water and the fractal characteristics of Karst morphology

Establishes evaluation model, classification criteria, index system and relevant techniques for Karst morphology in tunn tunnel and underground contruction

Presents the hydrochemical kinetic expression of groundwater dynamic parameters in Karst tunnel

Offers novel approach to predict Karst water inrush