Practice of detection and grouting for coal goaf under Yinglao road
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Graphical Abstract
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Abstract
With the background of the coal goaf under Yinglao road.The distribution range and height of the goaf are explored based on the geophysical method.The goaf is treated by the pressure grouting method.Through the comparison of the actual grouting situation and the predicted grouting volume, the goaf has been better filled after grouting.Ensure the safety of the highway operation.
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