考虑间歇比的地热能源桩热-力性能试验研究

刘春阳,方鹏飞,张日红,谢新宇,娄扬,张秋善,朱大勇

Experimental study on thermo-mechanical properties of geothermal energy pile considering intermittent ratio

Chun-yang LIU,Peng-fei FANG,Ri-hong ZHANG,Xin-yu XIE,Yang LOU,Qiu-shan ZHANG,Da-yong ZHU

表 1 土的基本物理力学与热物性指标

Tab.1 Physical-mechanical and thermo-physical parameters of soil

土层类型 hs/ m γ/ (kN·m−3) ww/ % λ/ (W·m−1·K−1) c /(J·kg−1·K−1) Es/ MPa c1/ kPa φ/ (°) 淤泥质黏土 0~8 17.2 51.0 1.11 1 840 2.28 10.4 8.3 黏土 8~15 19.0 32.7 1.26 1 670 6.99 37.8 16.9 粉质黏土 15~20 18.8 33.5 1.43 1 620 4.46 24.4 14.2 粉质黏土 20~37 18.7 34.9 1.44 1 620 4.41 19.8 13.3 黏土 37~45 18.3 37.9 1.52 1 730 5.28 24.3 13.3 粉质黏土 45~52 19.1 31.9 1.63 1 620 6.65 26.7 16.9 粉质黏土 52~57 19.2 30.4 1.71 1 620 8.28 42.0 16.8 粉质黏土 57~60 19.4 30.0 1.74 1 620 8.22 42.9 17.0