Detection Method for Anti-seepage Wall Combined Elastic Wave CT Forward Simulation with Driling and Water Injection Technology
simulation technology is used to detect the water flow in the wall,thereby completing the integrity inspection of the an-ti-seepage wall while detecting its permeability.The results show that in low-speed or high-speed abnormal speed models,the fluctua-tion of travel time residuals is significant and completely different.By using the enclosure method,the calculated permeability coeffi-cient is 0.14*10-6 cm/s,with an experimental depth of 15 m.By using the constant head method and depth of 15 m,the permeabili-ty coefficient calculated by this method is 1.88*10-6 cm/s.Based on the elastic wave CT forward simulation technology,it can effec-tively reflect the state of the anti-seepage wall.The anti-seepage wall permeability coefficient of the enclosure method is lower than that of the constant head water injection method.The proposed method can accurately detect the quality of anti-seepage walls.
万方数据
维普
