Hinge membrane bag bag filling material is given priority to with mortar, under special circumstances approved by design units can also be a suitable amount of filling concrete, longitudinal and block with different strength of rope, wear into the block in the middle, fixing and firmly block to block and can drain, and after the cut brush or free settling down after foundation sinking or shift. This product is suitable for the river- bed and the slope toe, rivers, turning the corner, used as a protection against tao brush.