Method for classifying complicated engineering geological formation complexes interspersed with irregular intrusive rocks and veins

Abstract

The invention discloses a method for classifying complicated engineering geological formation complexes interspersed with irregular intrusive rocks and veins for solving the problem of extremely irregular shapes of intrusive rocks 1 and veins in an extension direction. The invention proposes a method for quickly classifying the complicated engineering geological formation complexes with the interspersed with irregular intrusive rocks 1 and veins by using the comprehensive longitudinal wave velocity that reflects the comprehensive geological characteristics of the formation complexes, in viewof such complicated engineering geological formation complexes in the later stage, the engineering geological classification of the complicated engineering geological formation complexes can be quickly performed just by testing the longitudinal wave velocities of the intrusive rocks 1 and protoliths in the formation complexes, a foundation and a support are provided for the engineering suitabilityevaluation of a large number of such complicated engineering geological formation complexes in the later stage, and meanwhile, a powerful basis is provided for the design of engineering treatment plans for such complex engineering geological rock groups in the later stage.

Description

technical field [0001] The invention relates to the fields of geotechnical and hydropower engineering, in particular to an engineering geological classification method for complex rock formations applied to late irregular intrusive rocks and veins. Background technique [0002] Intrusive rocks are igneous rocks formed when magma in the asthenosphere penetrates into the structural cavity formed at the same time and crystallizes and condenses deep in the crust. In the process of magma intrusion, affected by the conditions and structure of the original rock, the geometrical regularity of the output shape, scale, and distribution of dikes is poor. Physical and mechanical properties, often form engineering geological defects such as weak interlayers. [0003] Affected by the type of original rock, the integrity of the rock mass, and the later tectonic geological action, the intrusive rocks and veins show thickness changes, folds, stone sausages, and pinch-out phenomena in the ex...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a complex engineering geological rock group classification method interspersed with irregular intrusive rocks and veins, to solve the phenomenon of intrusive rocks and veins showing thickness variation, bending folds, stone sausage, and pinch-out in the extension direction, and the shape is extremely irregular. Rules, complex combination forms, large differences in mechanical properties, and weak regularity

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