| 许光祥,张永兴,哈秋舲.粗糙裂隙渗流的超立方和次立方定律及其试验研究[J].水利学报,2003,34(3):0074-0079 |
| 粗糙裂隙渗流的超立方和次立方定律及其试验研究 |
| Super cubic and sub cubic law of rough fracture seepage and its experiments study |
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| DOI： |
| 中文关键词: 粗糙裂隙渗流 立方定律 超立方定律 次立方定律 临界条件 |
| 英文关键词: rough fracture seepage super cubic law sub cubic law critical condition |
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| 中文摘要: |
| 在充分总结和认真分析了裂隙渗流现有研究成果以 后发现，采用平均隙宽代替水力隙宽后，裂隙单宽渗流量与平均隙宽之间存在两种截然相反 的幂指数关系，一种是指数大于3的超立方关系，而另一种是指数小于3的次立方关系。基于 理想裂隙渗流遵循的立方定律，提出可以采用超立方定律和次方立定律来反映粗糙裂隙的渗 流规律。并通过多种人工裂隙的试验研究，证明了该两种定律在粗糙裂隙渗流中可能同时存 在，并初步提出了临界判别的定性标准。结果表明：吻合粗糙裂隙符合次立方定律，而非吻 合粗糙裂隙遵循超立方定律。 |
| 英文摘要: |
| The authors analyzed the available results about seepage of fracture and revealed that relationship between discharge of seepage and average aperture for rough fracture had two kinds of power relationship,taking average aperture to replace hydraulic aperture.One was super cubic power of larger than 30 and the other was sub cubic power of smaller than 30.On the basis of the cubic law of seepage in ideal fractures,the super cubic and sub cubic law could be adopted to describe seepage of rough fracture.Results of seepage tests of many types of manned fracture proved that the super cubic and the sub cubic law were co existing.A preliminary condition of critical was proposed.The test results revealed that the mating rough fracture would follow a super cubic law while the non mating rough fracture followed a sub cubic law. |
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