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Solute transport process optical measuring device based on rock joint transparent copy

A technology for rock joint and optical measurement, applied in measurement devices, scientific instruments, instruments, etc., can solve the problems of difficulty in observation and measurement, inability to observe the internal flow state of fractures and the migration process of solutes, etc. Effects of low and high reproduction accuracy

Pending Publication Date: 2017-05-17
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention mainly solves the problem that the internal flow state and solute migration process of cracks cannot be observed in the prior art, and proposes a device suitable for measuring the opening of transparent and high imitation rough rock joints and observing and monitoring the solute migration process of water flow, and gives The test method of the device
Therefore, in view of the difficulty in observing and measuring the water flow and solute migration process in the rock joints, the present invention adopts the mold replication technology of silicone rubber and transparent crystal hard glue to replicate the rough rock joint surface samples, and reconstruct the basic structure and structure of the rock joints. Surface Topography

Method used

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  • Solute transport process optical measuring device based on rock joint transparent copy
  • Solute transport process optical measuring device based on rock joint transparent copy
  • Solute transport process optical measuring device based on rock joint transparent copy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0045] First introduce the making of the imitation rock joint that the present invention adopts, as figure 1 , prepare the rock joint surface 1, place it in the plexiglass mold frame 2, add the silicone rubber liquid 3 containing curing agent, remove the mold frame after curing to obtain the silicone rubber mold 4, and add crystal hard glue A into the silicone rubber mold 4 And B mixed solution 5, obtained after curing, transparent joint surface A 6. Use the same method to obtain the transparent joint surface B 7 corresponding to the joint surface. Combine the corresponding transparent joint surface A 6 and transparent joint surface B 7 to form a joint 8, and this whole is a transparent rock joint replica 9.

[0046] The transparent joint flow device such as figure 2 As shown, the transparent rock joint replica 9 is clamped by two plexiglass pressing plates 10 up and down, and the two sides are fixed with fixed compression bolts 11 respectively. On the water-stop edge of t...

specific Embodiment approach

[0049] Step 1: Manufacture rock joints by artificial splitting, cut a standard rock sample of 200mm×100mm×100mm, and use the classic method of making artificial joints to artificially split on a pressurized device to obtain a rock joint consisting of upper and lower rock joint surfaces. Use a brush to remove small particles attached to the rough surface of the rock joint surface produced during the splitting process.

[0050] Step 2: Duplicate the rock joints. First, make a single joint surface mold with silica gel to avoid the difficulty of demoulding caused by directly pouring epoxy resin on the joint surface. Put the rock joint surface (200×100×50 (mm)) of artificially split granite into the plexiglass mold frame 2, pour silicone liquid (including curing agent) to submerge the joint surface by about 2cm, and make it self-leveling. The plexiglass mold frame 2 is put into a vacuum drying oven to carry out defoaming treatment later. Stand still for 1 to 2 days, after the cat...

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Abstract

The invention discloses a solute transport process optical measuring device based on a rock joint transparent copy. The device is characterized by comprising a transparent joint overcurrent device, an optical monitoring system, a water flow controlling and measuring system and a data acquiring and analyzing system. A to-be-tested and detected transparent rock joint copy is placed on the transparent joint overcurrent device, and the transparent joint overcurrent device provides a stable water flow which is precise in flow through the water flow controlling and measuring system; and the data acquiring and analyzing system is connected to the optical monitoring system and the water flow controlling and measuring system, and the data acquiring and analyzing system is used for acquiring the flow rate data of the water flow controlling and measuring system and transparent rock joint copy photographing data by the optical monitoring system. The measuring device can realize solute transport processes of the joints with different spatial morphological characteristics at different flow rates. The testing process is simple to operate, the device is low in cost, the repeatability is strong, a result can be intuitively displayed, and the reliability is strong.

Description

technical field [0001] The invention belongs to the technical field of rock seepage and solute migration, in particular to an optical measuring device for solute migration process based on a transparent replica of rock joints. Background technique [0002] In recent years, as my country has paid more and more attention to environmental pollution issues, such as the migration of groundwater pollutants, the safety of nuclear waste repositories, and the planned development of new energy sources such as shale gas, the theory and experimental techniques related to the solute migration mechanism of rock joints have become an important issue. new research directions. [0003] Experiments related to solute migration in rock joints are mainly divided into field large-scale migration experiments and indoor small-scale single-joint experiments. Domestic solute migration experiments are mainly concentrated on the shallow surface, and the migration medium is mainly soil. Research ques...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/04
CPCG01N13/04
Inventor 陈益峰方舒胡少华周佳庆胡冉
Owner WUHAN UNIV
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