Laboratory Study on Diffusion and Migration of Grout in Rock Mass Fracture Network
文献类型：期刊论文
| 作者 | Liu, Bin1; Sang, Haomin1,2; Liu, Quansheng3; Liu, He1,2; Pan, Yucong3; Kang, Yongshui1 |
| 刊名 | INTERNATIONAL JOURNAL OF GEOMECHANICS
 |
| 出版日期 | 2021 |
| 卷号 | 21期号:1页码:11 |
| 关键词 | Grouting Fracture network Diffusion and migration Simulation test |
| ISSN号 | 1532-3641 |
| DOI | 10.1061/(ASCE)GM.1943-5622.0001901 |
| 英文摘要 | The flow process of grout in a rock mass fracture network is an important part to judge the effect of grouting in engineering. Till date, little research has been done on the diffusion and migration pattern of grout in a random fracture network. Based on this, herein, a visualized fracture grouting test system with constant pressure was developed, consisting of pressure supply equipment, constant-pressure pulping equipment, fracture simulation equipment, and monitoring equipment. The system can simulate the flow process of the fracture network under the effect of various parameters such as the grouting pressure, grout characteristics, and fracture aperture and achieve the real-time monitoring of grout pressure, flow velocity, and diffusion distance in a random fracture network. Also, the governing equation of grout flow in a single rough fracture was obtained. The reliability of the test system was proved by the comparison of the single fracture grouting theory with the test results. Moreover, the grouting diffusion mechanism of the random fracture network was studied. The results show that (1) the pressure at the same point in the fracture increased with an increase in the grouting pressure and a decrease in the fracture aperture and was not affected by a change in the grout viscosity. (2) After the grout was dispersed into several branches in the fracture network, the pressures dropped significantly, the flow velocity decreased, and the pressure of each branch and flow distribution coefficient were greatly affected by the angle of bifurcation (intersection) fracture. The development of a test system and study results has a certain guiding value for grouting engineering. |
| 资助项目 | National Natural Science Foundation of China[51774267] ; National Natural Science Foundation of China[51974289] ; National Natural Science Foundation of China[41807250] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000598783400012 |
| 出版者 | ASCE-AMER SOC CIVIL ENGINEERS |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25226]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Kang, Yongshui |
| 作者单位 | 1.Chinese Acad Sci, State Key Lab Geomech & Geotech Engn, Inst Rock & Soil Mech, Wuhan 430071, Hubei, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov, Wuhan 430072, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Bin,Sang, Haomin,Liu, Quansheng,et al. Laboratory Study on Diffusion and Migration of Grout in Rock Mass Fracture Network[J]. INTERNATIONAL JOURNAL OF GEOMECHANICS,2021,21(1):11. |
| APA | Liu, Bin,Sang, Haomin,Liu, Quansheng,Liu, He,Pan, Yucong,&Kang, Yongshui.(2021).Laboratory Study on Diffusion and Migration of Grout in Rock Mass Fracture Network.INTERNATIONAL JOURNAL OF GEOMECHANICS,21(1),11. |
| MLA | Liu, Bin,et al."Laboratory Study on Diffusion and Migration of Grout in Rock Mass Fracture Network".INTERNATIONAL JOURNAL OF GEOMECHANICS 21.1(2021):11. |
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。