Shaking Table Tests on a Deformation Mitigation Method for Existing Road Embankment during Liquefaction by Using Gravel and Geosynthetics
Shaking Table Tests on a Deformation Mitigation Method for Existing Road Embankment during Liquefaction by Using Gravel and Geosynthetics
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砾石与土工合成材料缓解既有路堤液化变形方法振动台试验
DOI：
10.1051/matecconf/202033102002
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发表时间：
2020
影响因子：
--
通讯作者：
Hajime Kawasaki
中科院分区：
文献类型：
--
作者：
Masaho Yoshida;Taiga Katsumi;Hajime Kawasaki
在1 g重力场中进行了小型振动台试验，以评估在碎石层和石笼之间夹入土工合成材料的既有公路路堤在液化过程中的变形减缓方法的有效性。碎石层在液化过程中能迅速消散超孔隙水压力，并在路堤边坡下起到刚性板的作用。此外，石笼还可以约束路堤边坡，抑制边坡的侧向移动。结果表明，这些作用能有效地抑制路堤的变形，保持路堤的形状和坡顶的平整度。
Small scale shaking table tests in a 1-g gravity field were carried out to evaluate effectiveness of a deformation mitigation method for an existing road embankment during liquefaction by using geosynthetics sandwiched between gravel layer and a gabion. The gravel layer could dissipate an excess pore water pressure during liquefaction immediately, and perform as a rigid plate below a slope of embankment. Furthermore, the gabion could confine the slope of embankment and restrain the lateral movement of slope. As a result, these functions could restrain the deformation of embankment, and keep the shape of embankment and flatness of crest.