title: Research progress on expansive soil cracks under changing environment.
abstract: Engineering problems shunned previously rise to the surface gradually with the activities of reforming the natural world in depth, the problem of expansive soil crack under the changing environment becoming a control factor of expansive soil slope stability. The problem of expansive soil crack has gradually become a research hotspot, elaborates the occurrence and development of cracks from the basic properties of expansive soil, and points out the role of controlling the crack of expansive soil strength. We summarize the existing research methods and results of expansive soil crack characteristics. Improving crack measurement and calculation method and researching the crack depth measurement, statistical analysis method, crack depth and surface feature relationship will be the future direction.
authors.affiliation: College of Resource, Hebei University of Engineering, Handan, Hebei 056038, China ; Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing, Jiangsu 210024, China.
authors.forename: Bei-xiao
authors.initials: BX
authors.lastname: Shi
authors.affiliation: Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing, Jiangsu 210024, China.
authors.forename: Cheng-feng
authors.initials: CF
authors.lastname: Zheng
authors.affiliation: College of Water Conservancy and Electric Power, Hebei University of Engineering, Handan, Hebei 056021, China.
authors.forename: Jin-kun
authors.initials: JK
authors.lastname: Wu
mesh_terms: D004738:Engineering / Q000379:methods*; D012987:Soil / Q000737:chemistry*
chemical_list: D012987:Soil