Abstract
In order to study the lining stress index of hydraulic tunnel, this paper mainly analyzes the safety monitoring data of a hydraulic tunnel, uses ANSYS finite element software for modeling, uses Flac 3D software for numerical calculation, and uses numerical analysis method to develop hydraulic tunnel G1 -18 Stress monitoring indicators for lining of section. The results show that the actual measured value is basically within the control range of the data calculation value. When determining the monitoring index of the steel bar stress, the result of the numerical calculation can be used as the index, but the monitoring index of the top steel bar meter should use the maximum monitoring value as the index.
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