Method for analyzing opening field and seepage condition of rock fracture under different pressures

A rock fissure and pressure technology, which is applied in the field of analyzing the opening field and seepage of rock fissures under different pressures, can solve problems such as slowing down construction progress and safety issues, and achieve improved accuracy, reduced construction costs, and simple operation Effect

Active Publication Date: 2019-08-30
CHINA THREE GORGES UNIV
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Problems solved by technology

[0002] In many tunnel projects, underground pipe corridors, and mineral development projects, groundwater seepage has had a considerable impact on construction, greatly slowing down construction progress, and even bringing serious safety problems

Method used

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  • Method for analyzing opening field and seepage condition of rock fracture under different pressures
  • Method for analyzing opening field and seepage condition of rock fracture under different pressures
  • Method for analyzing opening field and seepage condition of rock fracture under different pressures

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Embodiment Construction

[0034] Such as Figure 1-Figure 3 As shown, a method for analyzing the opening field and seepage conditions of rock fractures under different pressures, the method includes the following steps:

[0035] Step 1: Select the required type of rock and split the rock to obtain a split sample 1;

[0036] Step 2: Cut the split sample 1 into a rectangular parallelepiped sample of appropriate size according to the crack direction;

[0037] Step 3: Separate the cuboid sample by extension cracks and divide it into two rock samples, which are marked as sample A and sample B;

[0038] Step 4: Drop the filler (liquid silica gel) on the fracture surface 9 of the sample A, combine the sample A and the sample B into the whole rectangular sample 8, and mark the relative position of the combination to record (the relative position The record should be along the direction perpendicular to the fracture surface) to ensure that the relative position does not change when it is combined for multiple times;

...

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Abstract

The invention provides a method for analyzing an opening field and a seepage condition of a rock fracture under different pressures. The method comprises the following steps of step 1, obtaining a splitting test sample; step 2, cutting the splitting test sample; step 3, a test sample A and a test sample B; step 4, dropping a filler onto a fracture surface of the test sample A; step 5, obtaining athree-dimensional model of the initial condition of the fracture surface when the normal pressure is F1; step 6, applying the normal pressure F1; step 7, obtaining the three-dimensional model of the initial overcurrent condition of the fracture surface when the normal pressure is F1; step 8, obtaining an opening field and the seepage condition of the fracture surface when the normal pressure is F1; and step 9, repeating the above steps 5 to 8, and obtaining the opening field and the seepage condition of the fracture surface under different normal pressures. According to the method for analyzing the opening field and the seepage condition of the rock fracture under different pressures provided by the invention, the true opening and seepage condition of a rock opening field under different pressure conditions can be better obtained.

Description

Technical field [0001] The invention relates to the technical fields of geotechnical exploration, construction, etc., in particular to a method for analyzing the opening field and seepage conditions of rock fractures under different pressures. Background technique [0002] In many tunnel projects, underground pipe corridors, and mineral development projects, groundwater seepage has caused a considerable impact on the construction, greatly slowing down the construction progress, and even bringing serious safety problems. There is an urgent need for a method that can analyze the distribution and opening of a certain rock fissure under different pressures, and obtain a method for analyzing the flow interruption and flow of rock fissures under different pressures, so as to facilitate engineering exploration, seepage plugging, and construction. Provide reference basis to protect the safety of life and property. Summary of the invention [0003] The technical problem to be solved by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/06G01N15/08
CPCG01N3/08G01N3/06G01N15/0806G01N15/082G01N2203/0019G01N2203/0066
Inventor 刘杰谢晓康丁科元唐洪宇李洪亚高进黎照高素芳孙涛张瀚李远航何卓文
Owner CHINA THREE GORGES UNIV
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