微震损伤驱动的高拱坝数字孪生模型及其应用

doi:10.3724/1000-6915.jrme.2025.0187

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Abstract To validate the integration of microseismic (MS) monitoring and digital twin (DT) technology in the safety monitoring of high-arch dams, this study proposes a dynamic DT approach driven by MS damage data. First, a data-driven DT system framework was established for modeling MS damage in high-arch dams. A method for constructing the twin model and an adaptive meshing reconstruction technique were introduced. An MS event model was developed using key spatiotemporal and intensity parameters, with model rendering achieved through interpolation algorithms and vertex coloring techniques. A rock mass degradation model was incorporated to dynamically adjust mechanical parameters by accounting for cumulative MS damage. Additionally, a feedback correction mechanism was established to update parameters in real time based on the locations of MS events and their energy release. A dynamic DT simulation method that integrates a development engine, numerical software, and database systems was implemented. This proposed method was applied to a case study of the Dagangshan high-arch dam. During a simulated rise in reservoir water levels from 1 120 m to 1 128 m, the stress concentration zones identified by the model—including the dam heel, the upstream dam face at elevations of 940 to 1 030 m, the downstream dam face at 979 to 1 081 m (both wings and the crown), the downstream arch ends, and the dam toe—demonstrated a high spatial correlation with actual MS activity. The average matching rate reached 92%, with some days achieving 100%. These results confirm the accuracy and effectiveness of the proposed MS data-driven DT simulation method, providing a new technical pathway for the digital construction and intelligent safety monitoring of high-arch dams.

Key words： hydraulic engineering high-arch dam digital twin microseismic damage data-driven dynamic feedback correction

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	Articles by authors
	MA Ke1
	2
	TANG Yusheng1
	GAO Zhiliang1
	3
	KE Hu1
	3

Cite this article:

MA Ke1,2,TANG Yusheng1, et al. Digital twin model of high-arch dams driven by microseismic damage and its application[J]. , 2025, 44(10): 2565-2579.

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https://rockmech.whrsm.ac.cn/EN/10.3724/1000-6915.jrme.2025.0187 OR https://rockmech.whrsm.ac.cn/EN/Y2025/V44/I10/2565

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