Rock alteration zoning comprehensive quantitative discrimination method

The invention discloses a rock alteration zoning comprehensive quantitative discrimination method and belongs to the field of geological engineering. The method is based on four in-situ test technologies such as a point load strength test technology, a rebound test technology, a sound wave test technology and a straight shearing test technology and comprises that through analysis according to results of tests on altered rock and unaltered raw rock, a rock point load strength index reduced rate, an average rebound value reduced rate, a sound wave velocity reduced rate, a cohesive force reduced rate and an inner frictional angle reduced rate are obtained, through a weight analysis method, a rock alteration degree quantitative evaluation index is built, a rock alteration zoning discrimination criterion is determined, and the rock is subjected to scientific alteration zoning so that space distributive scopes of a strong alteration zone, a medium alteration zone, a weak alteration zone and a non-alteration zone of rock are obtained. The method provides scientific basis for engineering exploration, design and treatment. The method creatively introduces the in-situ test technologies in rock alteration zoning discrimination and solves the problem that the prior art has a single technical evaluation method and a large artificial factor and cannot realize quantitative evaluation. The method provided by the invention utilizes an advanced test method and a novel discrimination process Compared with the traditional quantification experience method, the method provided by the invention has scientificity and reasonability.