Yu Zhao received his Ph.D. degree in Geotechnical Engineering from Chongqing University, China, in 2007. From 2010 to 2011, he studied as Visiting Scholar at the Energy Geosciences Division of Lawrence Berkeley National Laboratory, America. In 2013, he was promoted to Professor. Now, He is Dean of the College of Civil Engineering at Guizhou University. His research interests cover hydro-mechanical coupling in tunnel engineering and deep rock engineering. He has received six national or provincial scientific research projects and published more than 60 international and national papers.Kun Zheng graduated from Guangxi University with a master’s degree in Geotechnical Engineering, received his doctorate in Civil Engineering from Guizhou University, and mainly engaged in the research of rock fracture mechanics.Chaolin Wang received his Ph.D. degree in Civil Engineering from Chongqing University, China, in 2019. In 2021, he was promoted to Associate Professor. Now, He is working at the College of Civil Engineering at Guizhou University. His research interests cover energy geotechnical engineering. He has received 4 national or provincial scientific research projects and published more than 50 international and national papers.

• 1 Introduction.- 2 Review of fracture criteria.- 3 Review of fracture test methods.- 4 Mixed-mode I/II fracture        .- 5 Ture mode-II fracture.- 6 Mixed-mode I/III fracture.

Yu Zhao received his Ph.D. degree in Geotechnical Engineering from Chongqing University, China, in 2007. From 2010 to 2011, he studied as Visiting Scholar at the Energy Geosciences Division of Lawrence Berkeley National Laboratory, America. In 2013, he was promoted to Professor. Now, He is Dean of the College of Civil Engineering at Guizhou University. His research interests cover hydro-mechanical coupling in tunnel engineering and deep rock engineering. He has received six national or provincial scientific research projects and published more than 60 international and national papers.Kun Zheng graduated from Guangxi University with a master’s degree in Geotechnical Engineering, received his doctorate in Civil Engineering from Guizhou University, and mainly engaged in the research of rock fracture mechanics.Chaolin Wang received his Ph.D. degree in Civil Engineering from Chongqing University, China, in 2019. In 2021, he was promoted to Associate Professor. Now, He is working at the College of Civil Engineering at Guizhou University. His research interests cover energy geotechnical engineering. He has received 4 national or provincial scientific research projects and published more than 50 international and national papers.

• 1 Introduction.- 2 Review of fracture criteria.- 3 Review of fracture test methods.- 4 Mixed-mode I/II fracture        .- 5 Ture mode-II fracture.- 6 Mixed-mode I/III fracture.

Yu Zhao received his Ph.D. degree in Geotechnical Engineering from Chongqing University, China, in 2007. From 2010 to 2011, he studied as Visiting Scholar at the Energy Geosciences Division of Lawrence Berkeley National Laboratory, America. In 2013, he was promoted to Professor. Now, He is Dean of the College of Civil Engineering at Guizhou University. His research interests cover hydro-mechanical coupling in tunnel engineering and deep rock engineering. He has received six national or provincial scientific research projects and published more than 60 international and national papers.Kun Zheng graduated from Guangxi University with a master’s degree in Geotechnical Engineering, received his doctorate in Civil Engineering from Guizhou University, and mainly engaged in the research of rock fracture mechanics.Chaolin Wang received his Ph.D. degree in Civil Engineering from Chongqing University, China, in 2019. In 2021, he was promoted to Associate Professor. Now, He is working at the College of Civil Engineering at Guizhou University. His research interests cover energy geotechnical engineering. He has received 4 national or provincial scientific research projects and published more than 50 international and national papers.

• 1 Introduction.- 2 Review of fracture criteria.- 3 Review of fracture test methods.- 4 Mixed-mode I/II fracture        .- 5 Ture mode-II fracture.- 6 Mixed-mode I/III fracture.