TY - JOUR
TI - Triaxial high temperature mechanical properties of Longmaxi shale at different depths
AU - Yang Ze-Qian
AU - Lu Hui-Jun
AU - Ru Zhang
AU - Zhang Ze-Tian
AU - Ren Li
AU - Zhang Lan-Bin
AU - Zhang An-Lin
JN - Thermal Science
PY - 2023
VL - 27
IS - 5
SP - 3817
EP - 3822
PT - Article
AB - Based on the high temperature and confining pressure conditions at different  depths, triaxial high temperature mechanical tests were carried out on  Longmaxi shale with horizontal and vertical bedding, respectively. The  results show that shale's peak strength and deformation capacity increase  with burial depth. The failure mode of shale is a typical brittle failure,  and the brittle index can quantitatively describe the brittle mechanical  behavior of shale. Because shale has an apparent thin bedding structure,  shale with different bedding directions shows pro­nounced anisotropy in  mechanical parameters and deformation characteristics. The burial depth and  bedding direction significantly impact the energy evolution law of Longmaxi  shale during the mechanical process.