By analyzing the settlement observed data in construction and running period of Jie-Pu Expressway, it shows that sand wick is reasonable and necessary for treating rotten wood and silt mixed layer.

通过分析揭普高速公路软基路堤施工期及运行期的实测沉降资料，结合成因环境，说明了采用袋装砂井进行深层处理含腐木软土地基的合理性及必要性。

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Such nanotechnology involves engineering carbon-based polymer molecules, one-millionth the size of a grain of sand, that attach to fibers to wick away moisture and resist stains, water and static.

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