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Multifunctional integrated cap pressing type pressure chamber in rock coupling penetration test and test method

A pressure chamber, multi-functional technology, used in permeability/surface area analysis, suspension and porous material analysis, measurement devices, etc. Achieve the effect of enhanced capacity expansion, improved safety performance, and convenient installation of temperature control equipment

Inactive Publication Date: 2016-10-12
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing equipment adopts the multi-screw connection method between the pressure chamber and the base, which makes the pressure chamber have potential safety hazards in a high-pressure environment
If the rock specimen is required to be tested under complex conditions such as high temperature, stress, seepage stress, etc., the volume of the pressure chamber needs to be designed to be large in volume, with thick and heavy body walls. In this case, manual operation is laborious and troublesome. , it is easy to destroy the precision of the instrument due to accidental collision
Because the traditional pressurization method causes the specimen to work in the existing pressure chamber environment, it is inconvenient to add equipment required for the test, such as temperature measurement equipment, lateral displacement measurement equipment, etc., making it unsuitable for complex temperature, stress, seepage, Experimental Study on Rock Permeability under Chemical Coupling Conditions

Method used

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  • Multifunctional integrated cap pressing type pressure chamber in rock coupling penetration test and test method
  • Multifunctional integrated cap pressing type pressure chamber in rock coupling penetration test and test method
  • Multifunctional integrated cap pressing type pressure chamber in rock coupling penetration test and test method

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Embodiment Construction

[0047] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings and embodiments.

[0048] according to Figure 1 to Figure 5 , the multi-functional integral pressure cap type pressure chamber in the rock coupled permeability test, including a pressure chamber body 3, a pressure chamber base 8 (also 35) positioned at the bottom of the pressure chamber, a pressure chamber cover 39 positioned at the top of the pressure chamber, and a pressure chamber located at the pressure chamber The confining pressure oil inlet hole 2 and the seepage outlet 11 (also the permeate water outlet 46) at the bottom of the chamber, the seepage inlet 10 (also the permeate water inlet 37) near the top of the pressure chamber, are located outside the pressure chamber base and connected to the pressure chamber base The pressure chamber lock cap 44 (also 31), the lift cylinder 28 arranged on the top of the pressure chamber, the heati...

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Abstract

The invention belongs to the field of penetration experimental apparatuses and specifically relates to a multifunctional integrated cap pressing type pressure chamber in a rock coupling penetration test and a test method. The multifunctional integrated cap pressing type pressure chamber comprises a pressure chamber body, a pressure chamber base, a pressure chamber cover, a confining pressure oil inlet, a seepage outlet, a seepage inlet, a pressure chamber lock cap, a hoisting cylinder, an upper pressing head, an upper penetrating plate, a test part, a lower penetrating plate and a lower pressing head, wherein the pressure chamber base is located at the bottom of the pressure chamber; the pressure chamber cover is located at the top of the pressure chamber; the confining pressure oil inlet and the seepage outlet are located at the bottom of the pressure chamber; the seepage inlet is located close to the top of the pressure chamber; the pressure chamber lock cap is located on the outer side of the pressure chamber base and is connected with the pressure chamber base; the hoisting cylinder is arranged at the top of the pressure chamber; the upper pressing head, the upper penetrating plate, the test part, the lower penetrating plate and the lower pressing head are successively arranged in the pressure chamber body; the seepage outlet is successively connected with a cooling water tank and a volume variation gauge. The invention provides a pressure chamber with high safety, degree of automation and multifunction and the test method; complex operation and potential safety hazards are avoided; the pressure chamber is fit for the rock tri-axial coupling penetration test under the coupling effect of temperature-seepage-stress- chemistry (THMC).

Description

technical field [0001] The invention belongs to the field of permeation test instruments, and in particular relates to a multifunctional integral pressure cap pressure chamber and a test method used in a rock triaxial coupling permeation test instrument under the coupled action of temperature-seepage-stress-chemical (THMC). Background technique [0002] Water conservancy and hydropower projects, nuclear waste deep burial disposal, unconventional energy mining and other projects all need to solve the permeability characteristics and mechanical behavior of deep rocks in complex environments. Deep rocks are in high geostress, high geotemperature, high seepage water pressure and hydrochemical environment, and extremely complex temperature-seepage-stress-chemical (THMC) coupling will occur. The experimental research on rock THMC coupling is still in the theoretical research stage, and there will be a lot of room for improvement in the future. The design of the pressure chamber of...

Claims

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Application Information

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IPC IPC(8): G01N15/08
CPCG01N15/082
Inventor 康金昌刘艺召周庆尹江珊刘星星詹美礼罗玉龙何淑媛
Owner HOHAI UNIV
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