Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction
Grouting has always been the main engineering measure of ground improvement and foundation remediation of hydraulic structures. Due to complex geological conditions and the interactions between the grout and the fractured rock mass, which poses a serious challenge to the grouting diffusion mechanism...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/9/4/667 |
| _version_ | 1818409426948718592 |
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| author | Yushan Zhu Xiaoling Wang Shaohui Deng Wenlong Chen Zuzhi Shi Linli Xue Mingming Lv |
| author_facet | Yushan Zhu Xiaoling Wang Shaohui Deng Wenlong Chen Zuzhi Shi Linli Xue Mingming Lv |
| author_sort | Yushan Zhu |
| collection | DOAJ |
| description | Grouting has always been the main engineering measure of ground improvement and foundation remediation of hydraulic structures. Due to complex geological conditions and the interactions between the grout and the fractured rock mass, which poses a serious challenge to the grouting diffusion mechanism analysis, fracture grouting has been a research hotspot for a long time. In order to throw light on the grout diffusion process in the fractured rock mass and the influence of grout on the fracture network, and to achieve more realistic grouting numerical simulation, in this paper a grouting process simulation approach considering fluid⁻structure interaction is developed based on the 3D fractured network model. Firstly, the relationship between fracture apertures and trace lengths is used to obtain a more realistic value of fracture aperture; then a more reliable model is established; subsequently, based on the 3D fracture network model, different numerical models are established to calculate fluid dynamics (grout) and structure deformation (fractured rock mass), and the results are exchanged at the fluid⁻structure interface to realize the grouting process simulation using two-way fluid-structure interaction method. Finally, the approach is applied to analyze the grouting performance of a hydropower station X, and the results show that the grouting simulation considering fluid⁻structure interaction are more realistic and can simultaneously reveal the diffusion of grout and the deformation of fracture, which indicates that it is necessary to consider the effect of fluid⁻structure interaction in grouting simulation. The results can provide more valuable information for grouting construction. |
| first_indexed | 2024-12-14T09:59:27Z |
| format | Article |
| id | doaj.art-661de973a6ab448e906e45269a1a2f96 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-14T09:59:27Z |
| publishDate | 2019-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-661de973a6ab448e906e45269a1a2f962022-12-21T23:07:18ZengMDPI AGApplied Sciences2076-34172019-02-019466710.3390/app9040667app9040667Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure InteractionYushan Zhu0Xiaoling Wang1Shaohui Deng2Wenlong Chen3Zuzhi Shi4Linli Xue5Mingming Lv6State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaYalong River Hydropower Development Company, Ltd., Chengdu 610051, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University, Tianjin 300072, ChinaGrouting has always been the main engineering measure of ground improvement and foundation remediation of hydraulic structures. Due to complex geological conditions and the interactions between the grout and the fractured rock mass, which poses a serious challenge to the grouting diffusion mechanism analysis, fracture grouting has been a research hotspot for a long time. In order to throw light on the grout diffusion process in the fractured rock mass and the influence of grout on the fracture network, and to achieve more realistic grouting numerical simulation, in this paper a grouting process simulation approach considering fluid⁻structure interaction is developed based on the 3D fractured network model. Firstly, the relationship between fracture apertures and trace lengths is used to obtain a more realistic value of fracture aperture; then a more reliable model is established; subsequently, based on the 3D fracture network model, different numerical models are established to calculate fluid dynamics (grout) and structure deformation (fractured rock mass), and the results are exchanged at the fluid⁻structure interface to realize the grouting process simulation using two-way fluid-structure interaction method. Finally, the approach is applied to analyze the grouting performance of a hydropower station X, and the results show that the grouting simulation considering fluid⁻structure interaction are more realistic and can simultaneously reveal the diffusion of grout and the deformation of fracture, which indicates that it is necessary to consider the effect of fluid⁻structure interaction in grouting simulation. The results can provide more valuable information for grouting construction.https://www.mdpi.com/2076-3417/9/4/667groutingfracture network modelingnumerical simulationfluid–structure interaction |
| spellingShingle | Yushan Zhu Xiaoling Wang Shaohui Deng Wenlong Chen Zuzhi Shi Linli Xue Mingming Lv Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction Applied Sciences grouting fracture network modeling numerical simulation fluid–structure interaction |
| title | Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction |
| title_full | Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction |
| title_fullStr | Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction |
| title_full_unstemmed | Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction |
| title_short | Grouting Process Simulation Based on 3D Fracture Network Considering Fluid–Structure Interaction |
| title_sort | grouting process simulation based on 3d fracture network considering fluid structure interaction |
| topic | grouting fracture network modeling numerical simulation fluid–structure interaction |
| url | https://www.mdpi.com/2076-3417/9/4/667 |
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