Identification method of dominant infiltration channel of dam foundation rock mass based on gocad software

Abstract

The invention relates to the technical field of water resource and hydroelectric engineering, and discloses a method for recognizing a dominant permeating channel of a dam foundation rock mass on the basis of GOCAD software. By the method for recognizing the dominant permeating channel of the dam foundation rock mass on the basis of GOCAD software, the space position of the dominant permeating channel of the dam foundation rock mass can be accurately acquired in a three-dimensional space and on a two-dimensional plane. A three-dimensional attribute model is established in the GOCAD software by using the original data, the most dominant value of the original data is acquired by a data calculating function of the GOCAD software, and finally, a dominant permeating channel surface is constructed by the most dominant value of the data, so that the dominant permeating channel of the dam foundation rock mass is recognized accurately, conveniently and reliably. The method is suitable for recognizing the dominant permeating channel of the dam foundation rock mass.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a method for identifying dominant seepage channels of dam foundation rock mass based on GOCAD software. Background technique [0002] Predominant seepage channel: refers to the low-resistance seepage channel formed due to geological conditions, that is, the most prominent seepage channel. [0003] Existing methods for identifying dominant seepage channels in rock mass mainly include statistics based on experiments and test data, mathematical theoretical calculations, and two-dimensional grid scatter graphic analysis in reservoir exploitation. In water conservancy and hydropower projects, there are almost no methods for identifying the dominant seepage channels of dam foundation rock mass. The expression of dam foundation seepage characteristics is generally expressed through mathematical induction and analysis of water permeability data. This ...

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Problems solved by technology

[0004] The methods for identifying dominant seepage channels in rock mass in the prior art are mainly based on statistics of test data, mathematical theoretical calculations, and two-dimensional scatter graphics, and then determined through qualitative analysis. These methods are all limited to mathematical theoretical calculations and analysis of two-dimensional graphics On the other hand, the identified seepage channel can only be obtained within a certain seepage value interval or within a certain elevation interval at most, and does not have the visibility of data in three-dimensional space

Moreover, the rock mass has anisotropic characteristics, and its dominant seepage channel must be an irregular three-dimensional body with a certain thickness in three-dimensional space, and will never be a regular plane body on a certain elevation interval. Therefore, the existing technology identifies There is a large error between the surface of the superior permeation channel and the actual situation, which cannot reflect its specific shape in three-dimensional space, does not have three-dimensional visibility, and cannot be directly related to the rock mass structure and engineering building layout plan

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