陈文玲, 赵法锁. 2007: 云母石英片岩的三轴蠕变试验研究. 工程地质学报, 15(4): 545-548.
    引用本文: 陈文玲, 赵法锁. 2007: 云母石英片岩的三轴蠕变试验研究. 工程地质学报, 15(4): 545-548.
    CHEN Wenling, ZHAO Fasuo. 2007: TRIAXIAL TESTING STUDY ON CREEP CHARACTERISTICS OF MICA-QUARTZOSE SCHIST. JOURNAL OF ENGINEERING GEOLOGY, 15(4): 545-548.
    Citation: CHEN Wenling, ZHAO Fasuo. 2007: TRIAXIAL TESTING STUDY ON CREEP CHARACTERISTICS OF MICA-QUARTZOSE SCHIST. JOURNAL OF ENGINEERING GEOLOGY, 15(4): 545-548.

    云母石英片岩的三轴蠕变试验研究

    TRIAXIAL TESTING STUDY ON CREEP CHARACTERISTICS OF MICA-QUARTZOSE SCHIST

    • 摘要: 在三轴蠕变试验的基础上,通过对径向蠕变和轴向蠕变的比较研究,得出云母石英片岩的蠕变变形和长期强度特点:径向蠕变变形比轴向蠕变变形敏感,以径向蠕变长期强度作为长期强度更合理;围压越大,对径向变形的约束能力越强,径向蠕变长期强度和轴向蠕变长期强度均增加,径向蠕变长期强度与轴向蠕变长期强度的比值减小。同时指出进行径向蠕变研究的意义。

       

      Abstract: A quite number of triaxial creep tests were conducted on mica-quartzose schist,and the characteristics of creep deformation and long-term strength for this schist was analyzed by comparing with radial creep and axial creep in the tests.It was shown that,for this schist,taking the long-term strength of radial creep as the long-term strength was more reasonable since the radial creep is more sensitive than the axial creep.Besides,the higher confining compression is,the stronger the restraint of compression was to radial deformation,which resulted in decrease of both the long-term strength of radial creep and the long-term strength of axial creep.However,the ratio of the long-term strength of radial creep to the long-term strength of axial creep reduces with increasing of confining compression.This case study also indicated that the study of radial creep is significant.

       

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