Research on Grouting Test for Right Bank Fault at Lianghekou Hydropower Station
The F4 and F12 faults at the Lianghekou Power Station are relatively large in scale,with a nearly perpendicular orientation to the riverbed.They have a short seepage path and high seepage pressure.The fault filling materials are prone to softening and mudification when in contact with water,making them critical weak points affecting the stability of the curtain seepage.Through experiments involving different cement-based chemical grouting methods at various locations,comprehensive quality inspections were conducted after grouting.Based on the grouting effectiveness,reasonable grouting construction methods and material combinations were proposed.This approach effectively addressed engineering technical challenges and provided reliable technical data for the subsequent construction and operation of the project.It also serves as a reference for similar projects.
F4 and F12 faultscurtain groutingchemical groutingLianghekou Power Station