Basic study on reinforcement effect of vegetation work using <i>Phalaris arundinacea</i> L.

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  • クサヨシ (<i>Phalaris arundinacea</i> L.) を利用した植生工の地盤補強効果に関する基礎的研究
  • クサヨシ(Phalaris arundinacea L.)を利用した植生工の地盤補強効果に関する基礎的研究
  • クサヨシ(Phalaris arundinacea L.)オ リヨウ シタ ショクセイコウ ノ ジバン ホキョウ コウカ ニ カンスル キソテキ ケンキュウ

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Abstract

<p>In this study, soil specimens grown with Phalaris arundinacea L. were prepared and subjected to constant pressure direct shear tests under low vertical stresses simulated at the extreme surface layer of a slope. The test results showed that, similar to previous study conducted on Poa pratensis L., a foreign herbaceous plant, the specimens with more developed root systems in Phalaris arundinacea L. showed increased shear resistance at large shear displacements and improved toughness. In addition, it was confirmed that vegetation work using the local seedling, Phalaris arundinacea L., can have the same or better soil reinforcement effect as Poa pratensis L. if the seeding is done at the appropriate time.</p>

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