
Time histories of radial strain for piles in Test 1
Figures of the Article
-
Geometric model and boundary conditions for saturated non-isothermal consolidation
-
Comparison between simulated results and analytical solutions
-
Geometric model, boundary conditions and mesh for centrifuge model for energy piles
-
Comparison between simulated results and those from Wang et al[10]
-
Geometric model and boundary conditions for finite element analysis of field tests
-
Time histories of temperature imposed on piles in Test 1
-
Distribution of temperature variation at end of heating and cooling periods in Test 1
-
Vertical strain distribution during a heating-cooling cycle of the pile in Test 1
-
Time histories of radial strain for piles in Test 1
-
Variation of vertical displacement at pile head in Test 1
-
Distribution of vertical effective stress during a heating- cooling cycle of soils in Test 1
-
Distribution of vertical stress along pile at Δθ=13.4℃ in Test 7
Tables of the Article
-
参数 取值 单位 Lamé第一常数λskel 7.05×107 Pa Lamé第二常数μskel 4.7×107 Pa Biot系数b 1.0 1 孔隙率n 0.42 1 渗透率k 1.0×10-14 m2 流体动力黏度μf 0.001 Pa·s 固体密度ρs 3696 kg/m3 流体密度ρf 1000 kg/m3 固体压缩系数cs 0 Pa-1 流体压缩系数cf 0 Pa-1 固体体积热膨胀系数βs 4.95×10-6 K-1 流体体积热膨胀系数βf 6.21×10-4 K-1 固体比热容Cs 703 J/(K·kg) 流体比热容Cf 4180 J/(K·kg) 固体导热系数λs 1.38 W/(m·K) 流体导热系数λf 0.6 W/(m·K) -
参数 取值 单位 桩的弹性模量Ec 3.452×1010 Pa 桩的泊松比vc 0.18 1 土的弹性模量Esoil 1.222×104 Pa 土的泊松比vsoil 0.3 1 饱和水力传导率ksoil 5×10-7 m/s 桩的密度ρc 2564 kg/m3 土的密度ρsoil 1916 kg/m3 水的密度ρw ρf(θ) kg/m3 桩的线热膨胀系数αc 8×10-6 K-1 土的线热膨胀系数αsoil 1.17×10-5 K-1 桩的比热容Cc 855 J/(K·kg) 土的比热容Csoil 1190 J/(K·kg) 水的比热容Cw Cf(θ) J/(K·kg) 桩的导热系数λc 1.92 W/(m·K) 土的导热系数λsoil 1.2 W/(m·K) 水的导热系数λw λf(θ) W/(m·K) -
参数 土层A1 土层A2 土层B 土层C 土层D 能源桩 体积模量K/MPa 122 122 59 83 1860 17381 剪切模量G/MPa 113 113 1000 1400 1675 14313 密度ρ/(kg·m-3) 2000 1950 2000 2200 2550 2500 孔隙率n 0.1 0.1 0.35 0.3 — — 水力传导率k/(m·s-1) 2×10-6 7×10-7 1×10-6 1×10-6 — — 导热系数λ/(W/(m·K)-1) 1.8 1.8 1.8 1.8 1.1 2.1 比热容C/(J/(K·kg)-1) 1200 1231 1200 1091 784 800 体积热膨胀系数β/K-1 1×10-5 1×10-5 1×10-4 1×10-4 1×10-6 1×10-5 界面摩擦角δ/(°) 19.1 18.5 16.1 18.9 24.5 — 界面摩擦系数μ 0.346 0.335 0.289 0.342 0.456 —
Related articles
-
2022, 44(S2): 139-142. DOI: 10.11779/CJGE2022S2030
-
2022, 44(1): 107-114. DOI: 10.11779/CJGE202201010
-
2017, 39(10): 1936-1942. DOI: 10.11779/CJGE201710024
-
2017, 39(6): 996-1003. DOI: 10.11779/CJGE201706004
-
2015, 37(zk2): 181-185. DOI: 10.11779/CJGE2015S2035
-
2014, 36(1): 162-169. DOI: 10.11779/CJGE201401016
-
2005, 27(2): 167-172.
-
2002, 24(6): 701-705.
-
1997, 19(6): 56-61.
-
1996, 18(6): 73-80.