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| 盾构隧道大掺量粉煤灰同步注浆材料优化设计 | |
| 引用本文： | 田焜,丁庆军,陈跃庆,罗吉.盾构隧道大掺量粉煤灰同步注浆材料优化设计[J].隧道建设,2007,27(4):26-29. |
| 作者姓名： | 田焜 丁庆军 陈跃庆 罗吉 |
| 作者单位： | 1. 武汉理工大学材料科学与工程学院,武汉,430070 2. 武汉市城市建设投资开发集团有限公司,武汉,430070 3. 中铁隧道集团武汉长江隧道工程联合体指挥部,武汉,430070 |
| 摘 要： | 通过掺加粉煤灰、膨润土、高效减水剂等措施，对盾构法同步注浆用水泥砂浆配合比进行优化设计，探讨了粉煤灰掺量、减水剂种类和掺量、水胶比、胶砂比等与流动度、结石体3d、14d、28d抗压强度、凝结时间之间的关系，得到具有高工作性的大掺量粉煤灰同步注浆材料。 |
| 关 键 词： | 盾构法同步注浆大掺量粉煤灰工作性能 |
| 收稿时间： | 2007-03-19 |
| 修稿时间： | 2007-03-192007-05-10 |
Optimal Design of High Volume Fly Ash Simultaneous Grouting Material for Shield Tunnel |
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| TIAN Kun,DING Qing-jun,CHEN Yue-qing,LUO Ji.Optimal Design of High Volume Fly Ash Simultaneous Grouting Material for Shield Tunnel[J].Tunnel Construction,2007,27(4):26-29. | |
| Authors: | TIAN Kun DING Qing-jun CHEN Yue-qing LUO Ji |
| Institution: | 1. School of Materials Science and Engineering, Wuhan University of Technology2. Wuhan Urban Construction Investment &;|Development Group Co.,Ltd.3. Wuhan Yangtze River Crossing Tunnel Combo, China Railway Tunnel Group Co., Ltd. |
| Abstract: | The cement-aggregate ratio and water-cement ratio of high volume fly ash simultaneous grouting mortar with high workability has been obtained by the optimal design of cement mortar mixing ratios and by adding fly ash, bentonite and water-reducing agent. In addition, this paper also discusses the effects of fly ash volumes, water-reducing agent types and volumes, water-cement ratios and cement-aggregate ratios on such properties of grouting mortar as fluidity, compressive strength and setting time. |
| Keywords: | shield tunnel simultaneous grouting high volume fly ash workability |
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