| 桥梁预应力孔道真空辅助压浆施工技术 |
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| 引用本文： | 曹妍,王芮文. 桥梁预应力孔道真空辅助压浆施工技术[J]. 施工技术, 2009, 38(6) |
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| 作者姓名： | 曹妍 王芮文 |
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| 作者单位： | 1. 江苏省交通技师学院路桥系,江苏,镇江,212006
2. 解放军理工大学工程兵工程学院南京工程建设监理部,江苏,南京,210007 |
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| 摘 要： | 后张法预应力桥梁在投入使用一段时间后,会发现在预应力波纹管位置的混凝土表面出现渗水、钢筋锈迹以及波纹管位置的混凝土碳化程度大等病害,这主要是由于孔道压浆不饱满、浆体密实度不够引起,为弥补已往常规桥梁预应力孔道压浆工艺存在的不足,提高孔道压浆质量,采用真空辅助压浆新技术对后张法预应力孔道进行压浆,这项技术使得压浆后浆体盈满孔道,密实程度高.江苏省高速公路建设中首次在临连高速公路桥梁施工中采用这一新工艺,经检测效果良好.
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| 关 键 词： | 预应力 后张法 孔道压浆 真空辅助压浆 质量控制 |
Construction Technology of Vacuum Grouting for Prestressed Pore in Bridge |
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| Gao Yan,Wang Ruiwen. Construction Technology of Vacuum Grouting for Prestressed Pore in Bridge[J]. Construction Technology, 2009, 38(6) |
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| Authors: | Gao Yan Wang Ruiwen |
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| Affiliation: | 1.Department of Road and Bridge;Jiangsu Communications Normal University;Zhenjiang;Jiangsu 212006;China;2.Nanjing Engineering Projects Supervision Department of People's Liberation Army Corps of Engineers Polytechnic University College;Nanjing;Jiangsu 210007;China |
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| Abstract: | After working for a period of time,post-tensioned prestressed bridge has some problems such as water seepage,rusty steel bar and severe carbonization on concrete surface in the location of prestressed corrugated pipe,which are mainly due to the inadequate pore grouting and low slurry density.To make up for past conventional channels prestressed grouting technology gaps and improve the quality of pore grouting,new technologies of vacuum grouting on post-tensioned prestressed pore are used.After using the vac... |
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| Keywords: | prestress post-tensioned pore grouting vacuum grouting quality control |
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