Abstract
According to the permanent and temporary monitoring results, the warning boundary method and the mathematical physical model method are used for early warning and forecasting, and the construction measures are dynamically adjusted to form a construction control method based on safety monitoring technology. The application of the method which combines permanent monitoring with temporary monitoring on the front slope of the tail water outlet of the left bank, the upstream side wall of the 7#∼8# machine on the right bank, and the downstream abutment of the 9#∼10# unit section of Wudongde Hydropower Station, shows that it can fully grasp the stability of surrounding rock during construction period of slope and underground caverns. Through the early warning and forecasting, the mechanism of deformation is analyzed, the construction measures are adjusted in time, and the effect of the measures is evaluated, which plays an important role in ensuring the safety of the construction period.
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