912 工程科学学报，第43卷，第7期 4.5 4.5 (a) (b) O Test data Test data Q -Simulation curve 4.2 Simulation curve 3.9 3.9 3.6 0 3.6 33 3.3 0 3035 4.0 45 5.0 55 6.0 6.5 3035 4.0 45 5.0 5.5 6.0 Confining pressure/MPa Liquid pressure/MPa 3.5 2.3 Test data:First time loading ◇ (d) Test data:Second time loading 3.0 Test data:Third time loading 2.0 O口 Test data:Confining pressure Simulation curve Simulation curve 2.5 2.0 。 1.49 1.5 1.1 100 6 12182430 36 080 4 8121620242832 Deviatoric stress/MPa Deviatoric stress/MPa 图20R1岩样渗透性演化模拟结果.(a)围压递增：(b)渗透压力递增：(c)偏应力循环加载：(d)围压、偏应力同步加载 Fig.20 Simulation results of permeability evolution of RI sample:(a)increasing confining pressure;(b)increasing liquid pressure;(c)cyclic loading and unloading deviatoric stress;(d)increasing confining pressure and deviatoric stress synchronously 2.6 2.8 (a) △Test data (b) △Test data 2 Simulation curve 2.5 Simulation curve 2.2 1.8 △ 1.9 1.4 1.6 3.5 4.0 4.5 5.05.5 6.0 6.5 4.0 4.5 5.0 5.5 6.0 Confining pressure/MPa Liquid pressure/MPa 1.6 0.5 (c) essure 7.3 MPa 1.41 Test data:First time loading (d) 合 ssure 83 MPa Test data:Second time loading 米 Lest data-Confu ssure 9.3 MPa Test data Co 2 Test data:Third time loading 0.4 ulation curve ing pe Sim Simulation curve △ 1.0 中 0 0.3 0.8 A 0.6 口 02 0.1 0 12182430 36 42 0 1216202428 32 Deviatoric stress/MPa Deviatoric stress/MPa 图21R2岩样渗透性演化模拟结果.(a)围压递增：(b)渗透压力递增：(c)偏应力循环加载：()围压、偏应力同步加载 Fig.21 Simulation results of permeability evolution of R2 sample:(a)increasing confining pressure;(b)increasing liquid pressure;(c)cyclic loading and unloading deviatoric stress,(d)increasing confining pressure and deviatoric stress synchronously1.0 1.5 2.0 2.5 3.0 3.5 0 6 12 18 24 30 36 42 Permeability/(10−19 m2 ) Deviatoric stress/MPa Test data: First time loading Test data: Second time loading Test data: Third time loading Simulation curve (c) 0.8 1.1 1.4 1.7 2.0 2.3 0 4 8 12 16 20 24 28 32 Permeability/(10−19 m2 ) Deviatoric stress/MPa (d) Test data: Confining pressure 7.3 MPa Test data: Confining pressure 8.3 MPa Test data: Confining pressure 9.3 MPa Test data: Confining pressure 10.3 MPa Simulation curve 3.0 3.3 3.6 3.9 4.2 4.5 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Permeability/(10−19 m2 ) Confining pressure/MPa Test data Simulation curve (a) Test data Simulation curve 3.0 3.3 3.6 3.9 4.2 4.5 3.5 4.0 4.5 5.0 5.5 6.0 Permeability/(10−19 m2 ) Liquid pressure/MPa (b) 图 20    R1 岩样渗透性演化模拟结果. （a）围压递增；（b）渗透压力递增；（c）偏应力循环加载；（d）围压、偏应力同步加载 Fig.20    Simulation results of permeability evolution of R1 sample: (a) increasing confining pressure; (b) increasing liquid pressure; (c) cyclic loading and unloading deviatoric stress; (d) increasing confining pressure and deviatoric stress synchronously 1.0 1.4 1.8 2.2 2.6 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Permeability/(10−17 m2 ) Confining pressure/MPa Test data Simulation curve (a) Test data Simulation curve 1.3 1.6 1.9 2.2 2.5 2.8 3.5 4.0 4.5 5.0 5.5 6.0 Permeability/(10−17 m2 ) Liquid pressure/MPa (b) 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 6 12 18 24 30 36 42 Permeability/(10−17 m2 ) Deviatoric stress/MPa Test data: First time loading Test data: Second time loading Test data: Third time loading Simulation curve (c) 0.1 0.2 0.3 0.4 0.5 0 4 8 12 16 20 24 28 32 Permeability/(10−17 m2 ) Deviatoric stress/MPa Test data: Confining pressure 7.3 MPa Test data: Confining pressure 8.3 MPa Test data: Confining pressure 9.3 MPa Test data: Confining pressure 10.3 MPa Simulation curve (d) 图 21    R2 岩样渗透性演化模拟结果. （a）围压递增；（b）渗透压力递增；（c）偏应力循环加载；（d）围压、偏应力同步加载 Fig.21    Simulation results of permeability evolution of R2 sample: (a) increasing confining pressure; (b) increasing liquid pressure; (c) cyclic loading and unloading deviatoric stress; (d) increasing confining pressure and deviatoric stress synchronously · 912 · 工程科学学报，第 43 卷，第 7 期