Sand-filling roadbed construction method
A construction method and sand-filling technology, which can be applied to roads, roads, buildings, etc., can solve problems such as high construction costs and shortage of construction resources, and achieve the effects of eliminating common quality problems, avoiding soil erosion, and using local materials
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[0020] Taking a certain road located on the west side of the Linjiang River in the Xianghu New City area of Nanchang County as an example, it is basically arranged parallel to the outside of the slope foot on the east side of the current Gandong Levee, 0-40m away from the slope foot. The start point is K0+200.238, the end point is K4+600, the total length is 4.4km, and the average filling thickness is greater than 2m. The groundwater level is mainly controlled by the climate and the waters of the Ganjiang River, with an average of 5.75m.
[0021] 1. Analysis of key issues in sand-filled subgrade construction
[0022] Fine sand is non-viscous, has dilatancy, shear resistance, small cohesion, large internal friction angle, and large permeability coefficient. When saturated loose sand is shaken, sand particles will be suspended in water and become liquid-like. The sand can be cohesive into agglomerates, and it will loosen after soaking in water, which has poor stability.
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