Groundwater Chemical Kinetics and Fractal Characteristics of Karst Tunnel

Introduction.- Analysis of Environmental Factors Influencing the Karst Dynamics System of Tunnel in Typical Area.- Dynamic Characteristics of Groundwater and Hydrochemical Dynamics in Karst Tunnel.- Karst Morphology and Its Fractal Characteristics Revealed by Tunnel Excavation.- Experimental Study on the Dissolution Mechanism of Rock under the Condition of Tunnel Excavation.- Correlation between Fractal Characteristics of Karst Morphology and Hydrochemical Dynamics.- Hydrochemical Kinetics-Fractal Index Evaluation of Karst Development Degree. 

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 the