Small and Large scale Tests on Reinforced Kanto Loam Embankment

スポンサーリンク

概要

• 論文の詳細を見る

• The paper presents the results of four large scale field model tests on steep faced (1V:0.6H) Kanto Loam embankment reinforced with planar nonwoven geosynthetics. Two embankments were unreinforced, one being loaded immediately after construction and the other was loaded to failure after 20 days of field compression. The other two embankments were reinforced, respectively with three equally spaced geotextle layer and they were tested under spread footing. All these four embankments were fully instrumented to measure the lateral slope deformation, vertical settlement, pore pressure distribution and tensile strain distribution within the reinforcement. The unreinforced ones collapsed at almost same vertical load but due to pre-compression, settlement was markedly reduced. The load carrying capacities of the reinforced embankments became almost doubled at little higher footing settlement and the effect of pre-compression was significant in increasing both embankment stability and efficiency in the reinforcing action of geotextile. The geotextile layers being laid unrestrained at the edges, they showed increasing tensile strain inside with higher loading and none of them failed during the load tests.A series of laboratory physical model tests have been conducted. The effect of nonwoven as well as composite geotextile in addition to thin granular mat in between Kanto loam and geotextile, have been found very much significant. Test results reveal that use of geo-composite ensures significant stiffening effect of the reinforced-sand mat-Kanto loam.

• 国際ジオシンセティックス学会 日本支部の論文

国際ジオシンセティックス学会 日本支部 | 論文

• 二重壁構造を有する補強土壁の両面盛土への適用
• 二重壁構造をもつ垂直補強土擁壁の現場実験と数値解析
• 廃棄物処分場向け遮光性保護マットの屋外暴露挙動について
• 線状高分子混合処理土と遮水シートの境界面における遮水性の評価
• 補強土擁壁の地震時変位量計算手法の構築及び実被害事例への適用

もっと見る

スポンサーリンク