The invention discloses an RPW (ranked position weight) process for treating a high fill slope. According to the RPW process, the problem of
surface layer infiltration of atmospheric rainfall in a fill slope is solved by using a surface soil replacement, rolling and compaction technology, the problem of compaction degree of earth fill in a critical infiltration depth range of the atmospheric rainfall is solved by using a middle slope body
pressure grouting technology, and the problem of stability of earth fill outside the critical infiltration depth range of the atmospheric rainfall is solved by using a lower slope face compaction and
foot protection technology. The invention provides a three-dimensional
combined treatment technique for reinforcing the fill slope by using the surface soil replacement, rolling and compaction, the middle slope body
pressure grouting and the lower slope face compaction and
foot protection from top to bottom with the critical infiltration depth as a pointcut based on the treatment idea of a cataclysm space partition aiming at the particularity of the fill slope and the basic reason for
instability of the fill slope. The RPW process has the advantages that an atmospheric rainfall
surface layer infiltration passage is obstructed by using the surface soil replacement, rolling and compaction technology, the problem of stability of a shallow layer of the fill slope is solved, the compaction degree of the fill in the critical infiltration depth range of the atmospheric rainfall is enhanced by using the middle slope body
pressure grouting technology, and the problem of
instability of a deep layer of the fill slope is solved. The RPW process has high pertinence and high reliability based on the treatment idea of the cataclysm space partition, and the influence on the fill slope by the atmospheric rainfall is solved substantially. Meanwhile, the process has the advantages of simple construction process, short construction period, low manufacturing cost and the like, and is a new fill slope treatment technology which is worthy of being promoted and applied.