The modified porous riverbed model was constructed of gravel and bionic filler;and the other porous riverbed model constructed of macadam was tested as a contrast.

• 官家滑坡是一个典型的碎石土滑坡，这类滑坡在我国南方地区广泛发育，地下水是影响碎石土边坡变形和稳定性的重要因素。