PROBLEM TO BE SOLVED: To provide an embankment slope protection method, which has underground water drain function, requires no fixation by an anchor, can improve construction efficiency and significantly reduce construction cost and obtain tremendous effect to prevent embankment slope collapse without anchoring when a stabilization frame is installed on the embankment slope to retain and reinforce the natural ground.SOLUTION: A tendon 15 made of PC steel wire or PC steel rod is disposed so as to penetrate a drain pipe 4. An end of the tendon 15 protruding from an end of the drain pipe 4 is engaged with a stabilization frame 3 disposed on an embankment slope 1a. The tendon 15 is tensed and engaged so as to press the stabilization frames 3 on right and left side surfaces of the embankment against the embankment slope.SELECTED DRAWING: Figure 1
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