| 减水剂掺量对盾构隧道同步注浆浆液性能影响试验研究 |
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| 引用本文： | 郭锦熹,张亚洲,常光辉,鲁茜茜,王士民. 减水剂掺量对盾构隧道同步注浆浆液性能影响试验研究[J]. 路基工程, 2020, 0(2): 49-52,73. DOI: 10.13379/j.issn.1003-8825.2020.02.10 |
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| 作者姓名： | 郭锦熹 张亚洲 常光辉 鲁茜茜 王士民 |
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| 作者单位： | 1. 西南交通大学土木工程学院, 成都 610031; |
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| 摘 要： | 为进一步探究掺入高性能减水剂对强透水砂卵石地层同步注浆浆液性能的影响规律，在室内配置了6组不同减水剂掺量的配合比进行试验。结果表明:减水剂的掺入能有效改善膨润土导致的浆液过稠、流动度严重不足问题，当减水剂掺量为9.0~10.8 g/L时，不仅浆液的流动度、稠度得到改善，而且还能保持浆液具有较好的抗水分散性。
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| 关 键 词： | 地铁隧道 减水剂 配合比 浆液性能 同步注浆 |
| 收稿时间： | 2019-05-25 |
Experimental Study on Influence of Water Reducing Agent Dosage on Synchronous Grouting Slurry Performance of Shield Tunnel |
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| Abstract: | In order to further explore the influence of adding high performance water reducing agent on the performance of synchronous grouting slurry in strong permeable sand and gravel stratum,the mixing ratio of 6 different water reducing agents were conducted indoors. The results show that the addition of water reducing agent can effectively improve the problem of excessive thickening and fluidity caused by bentonite and when the amount of water reducing agent is in the range of 9.0~10.8 g/L, not only the fluidity and consistency of the slurry are improved, but also the slurry has good water dispersibility resistance. |
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