Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks
The fine fissures of V-diabase were the main stratigraphic that affected the effectiveness of foundation grout curtain in Dagang Mountain Hydropower Station. Thus, specialized in situ grouting tests were conducted to determine reasonable hole spacing and other parameters. Considering time variation...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2013/135467 |
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| author | Ping Fu Jinjie Zhang Zhanqing Xing Xiaodong Yang |
| author_facet | Ping Fu Jinjie Zhang Zhanqing Xing Xiaodong Yang |
| author_sort | Ping Fu |
| collection | DOAJ |
| description | The fine fissures of V-diabase were the main stratigraphic that affected the effectiveness of foundation grout curtain in Dagang Mountain Hydropower Station. Thus, specialized in situ grouting tests were conducted to determine reasonable hole spacing and other parameters. Considering time variation of the rheological parameters of grout, variation of grouting pressure gradient, and evolution law of the fracture opening, numerical simulations were performed on the diffusion process of cement grouting in the fissures of the rock mass. The distribution of permeability after grouting was obtained on the basis of analysis results, and the grouting hole spacing was discussed based on the reliability analysis. A probability of optimization along with a finer optimization precision as 0.1 m could be adopted when compared with the accuracy of 0.5 m that is commonly used. The results could provide a useful reference for choosing reasonable grouting hole spacing in similar projects. |
| format | Article |
| id | doaj-art-3b3832e6e3b24e00a490f94e45ed962d |
| institution | OA Journals |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-3b3832e6e3b24e00a490f94e45ed962d2025-08-20T02:08:03ZengWileyJournal of Applied Mathematics1110-757X1687-00422013-01-01201310.1155/2013/135467135467Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in RocksPing Fu0Jinjie Zhang1Zhanqing Xing2Xiaodong Yang3China Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaChina Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaChina Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaChina Institute of Water Resources and Hydropower Research, Beijing 100038, ChinaThe fine fissures of V-diabase were the main stratigraphic that affected the effectiveness of foundation grout curtain in Dagang Mountain Hydropower Station. Thus, specialized in situ grouting tests were conducted to determine reasonable hole spacing and other parameters. Considering time variation of the rheological parameters of grout, variation of grouting pressure gradient, and evolution law of the fracture opening, numerical simulations were performed on the diffusion process of cement grouting in the fissures of the rock mass. The distribution of permeability after grouting was obtained on the basis of analysis results, and the grouting hole spacing was discussed based on the reliability analysis. A probability of optimization along with a finer optimization precision as 0.1 m could be adopted when compared with the accuracy of 0.5 m that is commonly used. The results could provide a useful reference for choosing reasonable grouting hole spacing in similar projects.http://dx.doi.org/10.1155/2013/135467 |
| spellingShingle | Ping Fu Jinjie Zhang Zhanqing Xing Xiaodong Yang Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks Journal of Applied Mathematics |
| title | Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks |
| title_full | Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks |
| title_fullStr | Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks |
| title_full_unstemmed | Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks |
| title_short | Numerical Simulation and Optimization of Hole Spacing for Cement Grouting in Rocks |
| title_sort | numerical simulation and optimization of hole spacing for cement grouting in rocks |
| url | http://dx.doi.org/10.1155/2013/135467 |
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