| 水泥粉体深层喷射搅拌桩复合地基处理及其效果 |
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| 引用本文： | 程礼来,郜云峰,苗先文,段宗贵.水泥粉体深层喷射搅拌桩复合地基处理及其效果[J].河南国土资源,1998(1). |
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| 作者姓名： | 程礼来 郜云峰 苗先文 段宗贵 |
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| 作者单位： | 河南省地矿厅地球物理勘查队(程礼来)，新乡市经济技术开发区建设总公司(郜云峰)，河南省济源市城乡建设局(苗先文)，河南省孟州市城乡建设局设计室(段宗贵) |
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| 摘 要： | 水泥粉体深层喷射搅拌桩与干振碎石桩〔１〕、干振灰土桩等一样，也是处理松软地基土的一种有效方法。但与干振碎石桩等其他挤密型复合地基处理方法不同，水泥粉体深层喷射搅拌桩属于摩擦桩型。由于天然地基土对桩体的侧摩擦力和端阻力的共同作用，使复合地基的承载力大幅度提高。然而人们普遍认为，水泥粉体深层喷射搅拌桩法复合地基处理不能解决场地土的液化问题。本文通过工程实例和瑞雷波检测结果，证实了该方法处理的复合地基，除了承载力有较大幅度的提高外，地基土的抗液化能力也可以得到相应的加强。
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| 关 键 词： | 粉喷桩，影响区，瑞雷波，液化，检测 |
CEMENT POWER DEEP JET MIXING PILE TRANSACATION OF THE COMPOSITE FOUNDATION AND ITS EFFECT |
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| Cheng,Lilai,a,Gao,Yunfeng,b,Miao,Xianwen,c,Duan,Zonggui,d.CEMENT POWER DEEP JET MIXING PILE TRANSACATION OF THE COMPOSITE FOUNDATION AND ITS EFFECT[J].Henan Land & Resources,1998(1). |
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| Authors: | Cheng Lilai a Gao Yunfeng b Miao Xianwen c Duan Zonggui d |
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| Abstract: | The deep cement powder jetted agitating pile is an effective tool to processed the soft earth as the dry vibrating spall pile and dry vibrating powder earth pile.But it is different from the compactive piles such as dry vibrating spall pile,it is a kind of frictional pile.Then the bearing capacity of composite foundation is significantly increased because of the side friction force and terminal resistance force to the pile body.It is commonly accepted that the liquidation problem of field earth can not be resolved by the composite foundation processing with the deep cement powder jetted agitating pile.In this paper,it is verified by a practical example and test result of Rayleigh waves that anti liquidation capability of the foundation earth can be largely increased in addition to the significant enhancement of bearing capacity. |
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| Keywords: | powder jetted pile influence zone Rayleigh waves liquidation test |
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