卸载前沉降变形纵剖面形状与粉质粘土层顶板面形状非常一致；
The shape of vertical section with settlement deformation is in highly accordance with the shape of top silty clay layer before unloading.
前言： 浙江萧山—余杭地区全新统下部粉细砂、 淤泥质粘土层有机质丰富，是重要的“生气层系”，所夹的贝壳层和砂层是主要的“储气层”。
The Lower Holocene in the Xiaoshan-Yuhang area, Zhejiang, is composed of fine sand, silt and clay beds. They are rich in organic matter and constitute an important "gas source formation".
本工艺标准适用于工业和民用建筑中粘土、粉质粘土及含少量砂、石粘土层，且地下水位低的人工成孔灌注桩工程。
This technology is applicable to industrial and civil construction clay, silty clay and containing a small amount of sand, stone clay, and low groundwater levels Artificial hole pile works.
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