| 二次旋喷在砂土地层旋喷桩施工中的应用 |
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| 引用本文： | 陈志勇,杨志红. 二次旋喷在砂土地层旋喷桩施工中的应用[J]. 资源环境与工程, 2009, 23(1) |
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| 作者姓名： | 陈志勇 杨志红 |
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| 作者单位： | 广东省水利水电第三工程局,广东,广州,510635;广东爆破工程有限公司,广东,广州,510660 |
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| 摘 要： | 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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| 关 键 词： | 二次旋喷 旋喷桩 冒浆 负重 |
Application of Secondary Jet-grouted method on Jet-grouted Pile Construction in Sand Soil Stratum |
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| CHEN Zhiyong,YANG Zhihong. Application of Secondary Jet-grouted method on Jet-grouted Pile Construction in Sand Soil Stratum[J]. Resources Environment & Engineering, 2009, 23(1) |
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| Authors: | CHEN Zhiyong YANG Zhihong |
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| Affiliation: | 1.The Guangdong NO.3 Water Conservancy and Hydro-electric Engineering Board;Guangzhou;Guangdong 510635;2.Guangdong Blasting Engineering Co.;Ltd;Guangdong 510660 |
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| Abstract: | During the course of jet-grouted pile construction in sand soil stratum,lots of cement will be wasted because of the flow-up of grout to the surface.The construction divided into two steps followed: firstly,jet-grouted pile tops only 2 meters,then it forms effective load after the pile top is curdled.It retrenches lots of cement by adopting this secondary jet-grouted method.This method not only ensures the construction quality,but also saves the cement dosage.It matches the economical principle of engineeri... |
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| Keywords: | secondary jet-grouted method jet-grouted pile flow-up of grout to the surface loaded |
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