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A Real-Time Analysis and Feedback System for Quality Control of Dam Foundation Grouting Engineering

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Abstract

Real-time analysis and feedback systems play a vital role in obtaining good results from grouting processes. However, when there are intense construction schedules and complex geological structures, it is difficult for existing systems to provide to site engineers, prior to the borehole construction, prompt and accurate feedback, such as detailed geological information about grouting boreholes, which limits the use of such systems in practical applications. This paper proposes combining a three-dimensional (3D) geological model with real-time data collection technology in a system for both monitoring grouting, and providing analysis and feedback. This integrated grouting model, which comprises the geological model, the grouting borehole model and the grouting parameter database set, can be coupled and associated dynamically with grouting data. Additionally, the following methods are applied in this system: real-time grouting data processing and a monitoring alarm, prediction and visualization of geological conditions, forecasting of rock uplift, and visualization analysis of grouting parameters. The application of this system in Hydropower Project A, China is used as a case study. The predictions of geological conditions are closely matched with the actual situation, and this system can be used to monitor construction processes remotely and to help site engineers to design reasonable construction plans, optimize layouts for grouting boreholes and adjust construction measures.

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Acknowledgments

This research is supported by Innovative Research Group Science Fund of the National Natural Science Foundation (Grant No. 51021004),the National Basic Research Program of China (973 Program) under Grant No.2013CB035904, and China Three Gorges Corporation.

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Correspondence to F. G. Yan.

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Zhong, D.H., Yan, F.G., Li, M.C. et al. A Real-Time Analysis and Feedback System for Quality Control of Dam Foundation Grouting Engineering. Rock Mech Rock Eng 48, 1947–1968 (2015). https://doi.org/10.1007/s00603-014-0686-6

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  • DOI: https://doi.org/10.1007/s00603-014-0686-6

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