Method for detecting seepage performance of rock with filled connected fracture

A detection method and seepage technology, applied in the direction of measuring device, permeability/surface area analysis, suspension and porous material analysis, etc., can solve problems such as limited research significance, and achieve the effect of scientific methods

Active Publication Date: 2016-05-11
SHANDONG UNIV +1
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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 e

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  • Method for detecting seepage performance of rock with filled connected fracture
  • Method for detecting seepage performance of rock with filled connected fracture
  • Method for detecting seepage performance of rock with filled connected fracture

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Embodiment 1

[0039] The method for detecting the seepage performance of rock filling through fractures of the present invention is mainly realized through the following technical solutions:

[0040] Step 1: Take the original rock samples to be studied from the underground engineering, and make more than 50 standard specimens for use. The size of the standard specimens is a cylinder with a diameter of 50mm and a height of 100mm. The sample for the seepage orthogonal test, and the remaining part is used as the sample for the full-scale seepage test of the filled through-fracture rock.

[0041] Step 2: Design an orthogonal test plan for the seepage flow of filling cracks, and take the cutting inclination angle A, the thickness of the filling material B, the confining pressure C, and the axial pressure D as the factors that affect the seepage coefficient of the filling seepage test. According to the experience level of each factor, each Three levels are set for each influencing factor, and the...

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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...

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/08G01N15/082
Inventor 王琦李术才江贝栾英成孙会彬高松王春和李延配牛晋平霍文涛张传奎石常生胡士旗梁艳红王富奇张若祥任尧喜王德超曾艳君潘锐秦乾邵行于恒昌王雷
Owner SHANDONG UNIV
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