基于改进滤失试验的泥水盾构动态泥膜渗透特性研究

魏纲,朱彦华,尹鑫晟,丁智,崔允亮

Analysis of dynamic filter cake permeability characteristics of slurry shield based on modified fluid loss test

Gang WEI,Yan-hua ZHU,Xin-sheng YIN,Zhi DING,Yun-liang CUI

表 3 泥膜的孔隙比-渗透系数-压力的相互关系参数

Tab.3 Parameter of pore-hydraulic conductivity-pressure of filter cake

泥浆型号 α k0/(m·s−1) δ e0 SL1 0.845 3.41×10−7 0.0754 3.763 6 SL2 0.909 3.97×10−7 0.0980 4.202 4 SL3 0.674 4.35×10−10 0.3509 26.308 7 SL4 0.405 4.93×10−9 0.1529 7.490 3 SL5 0.517 2.86×10−9 0.2836 9.230 0 SL6 0.682 3.70×10−9 0.0714 6.064 6 SL7 0.739 3.08×10−10 0.1362 9.963 2 SL8 0.376 3.25×10−11 0.2705 16.908 3 SL9 0.349 9.18×10−12 0.1181 6.736 0 SL10 0.676 1.92×10−9 0.1954 10.418 4 SL11 0.925 7.95×10−10 0.0861 8.824 7 SL12 0.712 2.33×10−10 0.0838 12.075 4 SL13 0.152 3.30×10−12 0.1097 8.454 7 SL14 0.825 3.23×10−7 0.1739 0.828 7 SL15 0.193 2.52×10−12 0.1199 2.217 2