| CFG桩帽混凝土完全湿揭法的施工与检测效果 |
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| 引用本文： | 常聚友.CFG桩帽混凝土完全湿揭法的施工与检测效果[J].路基工程,2011,0(1):155-158. |
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| 作者姓名： | 常聚友 |
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| 作者单位： | 中铁二院工程集团有限责任公司, 成都 610031 |
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| 摘 要： | 由反射波法检测CFG桩(桩帽)完整性,一些桩的反射波曲线为正弦波衰减、周期大、无桩底反射信号,经分析和验证,原因是施工桩时,造成了桩浅部垂向裂纹、水平断裂、桩帽与桩没有连结成一体。为确保CFG桩(桩帽)质量完整,采用CFG桩帽混凝土完全湿揭法施工,效果良好。
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| 关 键 词： | CFG桩 桩身(桩帽)完整性 施工措施 混凝土完全湿揭法 质量控制 |
| 收稿时间： | 2019-11-10 |
Construction and Detection Effect of CFG Pile Cap Using Concrete Completely Wet Uncovering Process |
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| Authors: | CHANG Ju-you |
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| Institution: | CHANG Ju-you(China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu,610031,China) |
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| Abstract: | Through detecting CFG pile(pile cap) integrity using reflection method,it is shown that reflection curve of some piles is featured of sine wave attenuation,long period and no reflected signal from pile bottom,which are caused by pile shadow vertical crack,horizontal crack,separation between pile cap and pile body during construction through analysis and verification.In order to ensure CFG pile(pile cap) integrity,concrete completely wet uncovering process shall be applied for CFG pile cap with good effect. |
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| Keywords: | cement-flyash-gravel pile(CFG pile) pile(pile cap) integrity construction measures concrete completely wet uncovering process quality control |
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