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Experimental Study on Similar Materials for Fluid–Solid Coupling for Model Test of Water Inrush in Karst Tunnel
Abstract In this work, the authors study the mixing proportions of similar materials for use in tests of models of fluid–solid coupling by using the orthogonal test on six factors at five levels. We used river sand and calcium carbonate as aggregates, white cement and chlorinated paraffin as cementing agents, and iron sand and silicone oil as regulators. The physical and mechanical parameters as well as the hydro-physical properties of similar materials were tested at different mixing proportions, and the sensitivity of the results to the influential factors was assessed by range and variance analysis. A linear regression-based analysis of 25 groups of results was then carried out on STATA software. Following this, the similar materials chosen for fluid–solid coupling based on the above tests were applied to the model test of water inrush in a karst tunnel. The results showed that the fluid–solid coupling similar materials of karst strata were prepared, the main factors influencing basic parameters variation of similar materials were obtained; a quantitative relationship between the influential factors and parameters of the materials was also constructed, and can be used to significantly improve the efficiency of testing; the similar materials developed here can satisfy the requirements of tests on models of fluid–solid coupling. This study has important reference value for research on similar materials for fluid–solid coupling in tests of models of karst tunnels.
Experimental Study on Similar Materials for Fluid–Solid Coupling for Model Test of Water Inrush in Karst Tunnel
Abstract In this work, the authors study the mixing proportions of similar materials for use in tests of models of fluid–solid coupling by using the orthogonal test on six factors at five levels. We used river sand and calcium carbonate as aggregates, white cement and chlorinated paraffin as cementing agents, and iron sand and silicone oil as regulators. The physical and mechanical parameters as well as the hydro-physical properties of similar materials were tested at different mixing proportions, and the sensitivity of the results to the influential factors was assessed by range and variance analysis. A linear regression-based analysis of 25 groups of results was then carried out on STATA software. Following this, the similar materials chosen for fluid–solid coupling based on the above tests were applied to the model test of water inrush in a karst tunnel. The results showed that the fluid–solid coupling similar materials of karst strata were prepared, the main factors influencing basic parameters variation of similar materials were obtained; a quantitative relationship between the influential factors and parameters of the materials was also constructed, and can be used to significantly improve the efficiency of testing; the similar materials developed here can satisfy the requirements of tests on models of fluid–solid coupling. This study has important reference value for research on similar materials for fluid–solid coupling in tests of models of karst tunnels.
Experimental Study on Similar Materials for Fluid–Solid Coupling for Model Test of Water Inrush in Karst Tunnel
Wu, Wenlong (author) / Guo, Jiaqi (author) / Liu, Xiliang (author) / Zhu, Zhengguo (author) / Wang, Erbo (author)
2023
Article (Journal)
Electronic Resource
English
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
Study on Assessment Model of Water Inrush Hazards in Karst Tunnel
British Library Conference Proceedings | 2014
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