DEVELOPMENT OF A REINFORCING METHOD USING GEOSYNTHETICS AND SLOPE SURFACE PROTECTION WORK FOR EMBANKMENT SLOPES

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  • 自立式プレキャスト法枠を用いた盛土補強土工法の開発
  • ジリツシキ プレキャスト ノリワク オ モチイタ モリド ホキョウ ドコウホウ ノ カイハツ

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Abstract

Reinforcing steep embankment slopes with geosynthetics has become popular recently. It has been known empirically that reinforced slopes become more stable by applying some confining pressure to the slope face. Recognising the Importance of this factor, the authors developed a new construction method using geosynthetic reinforcement layers the ends of which are connected to a reinforced concrete slope face protection work. To this end, a series of small laboratory model tests and full-scale field tests and their FEM numerical simulation were performed. The results confirmed the importance of slope face confining for stabilising the reinforced slope and reducing the slope deformation. A number of actual slope protection works have been performed by this new construction method with vegetating slopes through openings of reinforced concrete slope protection works.

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