王甘林, 刘卫群, 陶煜. 充填泥沙裂隙岩石渗流特性的实验研究[J]. 力学与实践, 2010, 32(5): 14-17. DOI: 10.6052/1000-0879-lxysj2010-050
引用本文: 王甘林, 刘卫群, 陶煜. 充填泥沙裂隙岩石渗流特性的实验研究[J]. 力学与实践, 2010, 32(5): 14-17. DOI: 10.6052/1000-0879-lxysj2010-050
EXPERIMENTAL STUDY OF PERMEABILITY IN FRACTURED SANDSTONE WITH SEDIMENT PARTICLES[J]. MECHANICS IN ENGINEERING, 2010, 32(5): 14-17. DOI: 10.6052/1000-0879-lxysj2010-050
Citation: EXPERIMENTAL STUDY OF PERMEABILITY IN FRACTURED SANDSTONE WITH SEDIMENT PARTICLES[J]. MECHANICS IN ENGINEERING, 2010, 32(5): 14-17. DOI: 10.6052/1000-0879-lxysj2010-050

充填泥沙裂隙岩石渗流特性的实验研究

EXPERIMENTAL STUDY OF PERMEABILITY IN FRACTURED SANDSTONE WITH SEDIMENT PARTICLES

  • 摘要: 对人工充填泥沙裂隙岩石在MTS815.02电液伺服岩石试验系统上进行渗流实验, 同时结合岩石孔隙电子显微照片, 探讨了泥沙颗粒对裂隙岩石渗透特性的影响规律. 实验表明, 在泥沙颗粒的作用下, 裂隙岩样渗透率明显减小; 泥沙颗粒在岩样宏观裂隙中运移达到重新平衡之后, 裂隙岩样渗透率随时间逐渐增大并最终趋于稳定.

     

    Abstract: Sediment particles in natural rock with alarge number of connected cracks and faults, have some impact on the transportof groundwater and the variable permeability by creating micro-cracks anddamage zones around faults. In this paper, an experiment about seepageon the rock electro-hydraulic servo test system of MTS815.02, together withelectron micrograph of sandstone pore, is designed and used to investigatethe relationship between the variable permeability and the filling silt increating cracks. Results show that the permeability in cracked rockdecreases distinctly under the silt-induced effect. The permeability, along with thesediment particles in macro-fissures in the cracked rock to achievere-balancing of transport, gradually increases over time and eventuallystabilizes.

     

/

返回文章
返回