New Method to Evaluate Antiwashout Performance of Grout for Preventing Water-Inrush Disasters
文献类型：期刊论文
| 作者 | Yuan, Jingqiang; Chen, Weizhong; Tan, Xianjun; Yang, Diansen; Zhang, Qingyan |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 20期号:2页码:6 |
| 关键词 | Antiwashout performance Cement-sodium silicate grout Polyurethane grout Grout retention ratio Water-inrush disaster |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001587 |
| 英文摘要 | Grouting is frequently used to prevent water-inrush disasters in tunnels and underground engineering. However, complex groundwater environment can significantly influence the grouting effect, especially the antiwashout performance. To accurately evaluate the antiwashout performance of grouting materials, a new method is proposed to design specific measurement devices and measurement procedures. This new method allows direct simulation of the injection of grout into water with different flow velocities. Thus, the antiwashout performance of grout under the scouring and diluting action of flowing water can be evaluated quantitatively. The grout retention ratio (GRR) is defined to quantitatively determine the antiwashout performance of grout. Taking widely used cement-sodium silicate (C-S) grout and polyurethane grout as test samples, a series of tests with different mixing ratios and water flow velocity conditions was carried out. The feasibility of the new method was evaluated in these tests and the influences of the grout mixing ratio and water flow velocity on the GRR were discussed. By analyzing the experimental data, a polynomial regression model for C-S grout was derived to provide guidance for optimizing its antiwashout performance. Compared with C-S grout, polyurethane grout has much better antiwashout performance at higher water flow velocity, indicating its advantage in controlling the flow rate of water and preventing water-inrush disasters. |
| 资助项目 | National Natural Science Foundation of China[51509246] ; Hubei Provincial Natural Science Foundation of China[2018CFA012] ; Hubei Key Laboratory of Roadway Bridge and Structure Engineering (Wuhan University of Technology)[DQZDJJ201701] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000502794700002 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27581]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Jingqiang,Chen, Weizhong,Tan, Xianjun,et al. New Method to Evaluate Antiwashout Performance of Grout for Preventing Water-Inrush Disasters[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2020,20(2):6. |
| APA | Yuan, Jingqiang,Chen, Weizhong,Tan, Xianjun,Yang, Diansen,&Zhang, Qingyan.(2020).New Method to Evaluate Antiwashout Performance of Grout for Preventing Water-Inrush Disasters.INTERNATIONAL JOURNAL OF GEOMECHANICS,20(2),6. |
| MLA | Yuan, Jingqiang,et al."New Method to Evaluate Antiwashout Performance of Grout for Preventing Water-Inrush Disasters".INTERNATIONAL JOURNAL OF GEOMECHANICS 20.2(2020):6. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。