Method for detecting seepage performance of rock with filled connected fracture

Abstract

The invention relates to a method for detecting the seepage performance of rock with filled connected fracture. The method includes steps of 1, taking samples from construction sites, preparing a plurality of standard test specimens, designing seepage orthogonal test schemes for the filled fracture and preparing study test specimens; 2, implementing the orthogonal test schemes, processing orthogonal test data by the aid of seepage coefficients which are used as detection indexes and finding factors with significant influence on seepage of the filled fracture; 3, designing multi-factor and multi-level comprehensive tests for the significant factors and measuring seepage coefficients in each test; 4, acquiring relations between each single factor and the seepage coefficients and relational functions of multi-factor coupling effects and the seepage coefficients by means of regression according to comprehensive test data. The method has the advantages that the method is scientific and rigorous, the various factors with influence on the seepage performance of the rock with the filled connected fracture can be comprehensively studied, and the method has a guiding significance on managing seepage during underground engineering and designing and implementing supports in seepage environments.

Description

technical field [0001] The invention belongs to the technical field of safety in underground engineering, and in particular relates to a method for detecting seepage performance of a rock filling through a fracture. Background technique [0002] Fractured rock mass is a complex medium often encountered in various projects such as water conservancy, mines, tunnels, and nuclear waste storage in my country. [0003] Although domestic and foreign experts and scholars have made some progress in the research on seepage through fractures and low-permeability rock, most of the research is based on a single factor to test the seepage characteristics of fractured rock mass. In terms of rock low permeability, through-fractures, and fillings, there are few existing literatures, which shows that there is no mature theory to study the seepage law of rock-filled through-fractures under these circumstances. Because there are many factors that affect the seepage law of rock mass with fillin...

AI Technical Summary

Problems solved by technology

Since there are many factors affecting the seepage law of rock mass with fillings penetrating through fractures, and many of them are also coupled with each other, it is of limited significance to use the control variable method to study the law of seepage of rock mass with fillings penetrating fractures.

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