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Application of Secondary Jet-grouted method on Jet-grouted Pile Construction in Sand Soil Stratum
Author(s): CHEN Zhiyong, YANG Zhihong
Pages: 61-
62,86
Year: 2009
Issue:
1
Journal: Resources Environment & Engineering
Keyword: 二次旋喷; 旋喷桩; 冒浆; 负重;
Abstract: 在砂土地层中施工旋喷桩,地表冒浆量过大,浪费大量的水泥.通过在桩顶部预旋喷2 m,待预旋喷桩体凝固后,形成有效负重,再进行二次旋喷的方法,有效防止孔口大量冒浆.采用二次旋喷处理,既可保证施工质量,又可节约水泥用量,符合工程施工经济的要求.
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