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Embankment construction method with poor quality fill material and insitu soils on very soft subsoil area
Embankment construction method with poor quality fill material and insitu soils on very soft subsoil area
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机译:土质很软的软土地基填筑质量差的路堤施工方法
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摘要
PURPOSE: A process for constructing a riverbank is provided by using low quality of soil and the soil in field in order to enhance supporting force and durability of a soft ground with a reinforcement of sand column formed on the soft ground. CONSTITUTION: The process comprises introducing sand column(20) into a ring-type geo-grid(10) having high stress on a soft ground(100) to improve/reinforce the ground(100); forming a riverbank(200) by applying a soil and earth material(30) made of the soil in field, clay, sand and other low grade soil over the ground(100) provided with the sand column(20) with net form geo-grids(40) as a reinforcing material having high stress. The geo-grid(40) is produced in a net form by aramid or PVA fibers, for example, in case of aramid fiber, having about 50-1600kN/m of tensile strength and 3.5% or less of elongation while PVA fiber, having about 50-1200kN/m and 5% or less of the same.
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