Experimental Study on Grouting Visualization of Cover Layer Based on Transparent Soil
Source abstract
Abstract
Grouting, as a widely applicable and versatile foundation treatment technology, plays a crucial role in addressing seepage control problems in cover layers due to its flexibility and convenience. The effectiveness of grouting largely depends on slurry diffusion; however, due to the opaque nature of geotechnical media, the diffusion mechanism of slurry in the cover layers remains insufficiently understood. To investigate this, a visual grouting model device was designed and fabricated, and grouting tests were conducted using transparent soil materials to simulate the cover layers. The slurry diffusion patterns and the velocity field within the transparent soil were analyzed. The results show that, based on refractive-index matching, fused quartz sand of specific gradation and white mineral oil were selected as simulation materials for the cover layers. A stable slurry suitable for transparent grouting was also chosen to satisfy visualization requirements. The transparent soil grouting model, integrated with a Digital Image Correlation (DIC) monitoring system, has the advantages of demonstrating simple operation, real-time monitoring, and high precision. These tests verify the feasibility of visualizing slurry diffusion in cover layers. Furthermore, step-pressure grouting tests preliminarily reveal the dynamic mechanism of slurry diffusion. The results suggest that, in the cover layer, the cover layer in this grouting test is mainly splitting grouting, accompanied by compaction grouting. These methods offer new insights and methods for model testing of cover layer grouting mechanisms.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Grouting, Rheology, and Soil Mechanics · Dam Engineering and Safety · Geotechnical Engineering and Underground Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
Funding
Doctoral Student Innovation Fund of China Institute of Water Resources and Hydropower Research · Special scientific research project of China Institute of Water Resources and Hydropower Research
References (24)
Show source-provided references
1. Comparison of hydropower development degrees of key countries and regions in the world
2. Meshkabadi, K., and Zandi, Y. (2019). The Effects of Grout Curtain Parameters on Uplift and Piping Phenomenon; Case Study: Sattarkhan Dam. Hydrology, 6.10.3390/hydrology6030071 ↗
3. Research on diffusion of grouting and basic properties of grouts
4. Research on the dynamic process simulation of rock grouting based on particle flow
5. Design of grouting parameters in rock based on grouting time
6. Advance and review on grouting critical problems in fractured rock mass
7. Comparative experiments on compressive deformation properties of transparent soil and standard sand
8. Application of transparent soil model tests to study the soil-rock interfacial sliding mechanism10.1007/s11629-018-5083-2 ↗
9. Internal imaging of saturated granular free-surface flows
10. Visualisation of seepage induced suffusion and suffosion within internally erodible granular media10.1680/jgeot.17.P.161 ↗
11. Basic properties of transparent sand and its application to grouting model test
12. Transparent soil experiment study on chemical grouting prevention and control for secondary water inflow occurred in mine shaft
13. Experimental study on disturbance deformation of soil sampler penetration based on transparent clay
14. (2019). Standard for Geotechnical Testing Method (Standard No. GB/T 50123-2019).
15. Use of mixing rules in the analysis of data for binary liquid mixtures10.1021/je00035a018 ↗
16. Zhang, J.J., and Liu, J.C. (1991). Study on grouting performance of low water content stable cement slurry. Water Resour. Hydropower Eng., 52–56.
17. Chen, M., Jin, Y., and Zhang, G.Q. (2008). Rock Mechanics of Petroleum Engineering, China Science Press.
18. Yu, Y.Q., Zhang, C.X., Zhang, J.Y., Fan, L.D., Tang, J.Z., and Su, Z.H. (2024). Experimental study on the diffusion law of sand medium grouting. Metal Mine, 66–74.
19. Niu, J., Li, Z., Gu, W., and Chen, K. (2020). Experimental study of split grouting reinforcement mechanism in filling medium and effect evaluation. Sensors, 20.10.3390/s20113088 ↗
20. Experimental study on water gushing-sand bursting in shield tunnels based on transparent soil
21. Model tests on pipe pile penetration by using transparent soils
22. Analysis of preferential flow migration in unsaturated transparent soil
23. Experimental investigation of pressure grouting in sand10.1016/j.sandf.2016.02.001 ↗
24. Fan, K., Sun, W., Li, Z.R., Feng, X.L., Wang, S.Y., Chen, C., and Jiang, M.G. (2024). Study on diffusion mode and distance influence mechanism of chemical grout grouting in moraine soil. Met. Mine, 89–93.