Study on the Slope Failure Induced by Seepage Flow with Sand-box Experiment
碩士 === 國立中興大學 === 水土保持學系 === 89 === This experiment was conducted with two kinds of homogeneous grain size composition and four kinds of slope with different hydraulic heads in sand-box. The purposes of this study were trying to analyze the influence of seepage on landslide and evaluate the conditio...
| Main Authors: | , |
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2001
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| Online Access: | http://ndltd.ncl.edu.tw/handle/68617338166197841688 |
| Summary: | 碩士 === 國立中興大學 === 水土保持學系 === 89 === This experiment was conducted with two kinds of homogeneous grain size composition and four kinds of slope with different hydraulic heads in sand-box. The purposes of this study were trying to analyze the influence of seepage on landslide and evaluate the conditions of debris flow occurrence that was triggered by the combination of seepage flow and other factors. And the results were obtained as follows :
1.The shape of the failure slope destroyed by seepage was
almost circular arc under the homogeneous deposition. The
relation between the landslide volume and the discharge of
seepage flow is exponential.
2.An equation was derived for estimating the volume of
landslide triggered by seepage as follows :
ln(Vs/h^2)=3.90+2.50*ln(sinθi)+1.81*ln(n)
3.The larger porosity of slope was, the greater seepage force
was yielded. Then, the larger scale of landslide was induced,
and which mixed seepage water to form a higher concentration
of fluid substance. It might become debris flow on the proper
steepness.
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