CN107153017A - A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods - Google Patents

A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods Download PDF

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Publication number
CN107153017A
CN107153017A CN201710344860.0A CN201710344860A CN107153017A CN 107153017 A CN107153017 A CN 107153017A CN 201710344860 A CN201710344860 A CN 201710344860A CN 107153017 A CN107153017 A CN 107153017A
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CN
China
Prior art keywords
rock
disk
fissure
rocks
plane
Prior art date
Application number
CN201710344860.0A
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Chinese (zh)
Inventor
钟振
胡云进
李世超
翁余烽
杜时贵
黄曼
雍睿
Original Assignee
绍兴文理学院
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Application filed by 绍兴文理学院 filed Critical 绍兴文理学院
Priority to CN201710344860.0A priority Critical patent/CN107153017A/en
Publication of CN107153017A publication Critical patent/CN107153017A/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00Sampling; Preparing specimens for investigation
    • G01N1/28Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q

Abstract

The invention discloses a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method, comprise the following steps:First axial split rock obtains rock disk, lower rock disk;The axial mistake of the upper fissure-plane of the lower fissure-plane of upper rock disk and lower rock disk is formed into horizontal rock Single Fracture away from merging;The tomography mud layer that simulation shear-zone is present is installed between the lower fissure-plane of upper rock disk and the upper fissure-plane of lower rock disk;Finally metal tube is wrapped with upper rock disk and lower rock disk.A kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method of the present invention, the rock Single Fracture sample of making, which is carried out, slides control sliding test, and test accuracy is higher.

Description

A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods

Technical field

The present invention relates to a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method, belong to seismic dynamics experiment Technical field.

Background technology

In addition to rock rupture problem, In Frictional Sliding of Rocks problem is always the important topic of seismic dynamics research.Research Show, tomography is once form, and its following motion will be by friction rule control;Statistics also shows, most of shallow in history Focus earthquake (depth of focus is less than 70km earthquake) is along the repetition activity of existing tomography, therefore, explores rock frictional test and slides Dynamic characteristic has important researching value and social effect.Indoor standard triaxial test is the master of study of rocks Frictional Slipping characteristic Want means, the time dependence of rock fracture frictional strength, speed stability can respectively by slip-control-sliding test and The experiment of speed step-length is studied, and the evolution process of fissure permeability can then be obtained by permeability test in sliding process.

But due to being limited by objective condition, particularly limited by rock fracture sample preparation method, because mistake is away from merging Crack and in the void area that crack two ends are formed easily by experiment in the confined pressure be collapsed that applies, make current slip-control-slip Experiment can only be carried out in the range of limited slip, and crack infiltration coefficient is also main to be kept obtaining under conditions of geo-stationary in fissure-plane .

Therefore, in order to solve the above technical problems, a kind of preparation method of the rock fracture sample it is necessory to provide innovation, To overcome the defect of the prior art.

The content of the invention

It is an object of the invention to provide a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method, the rock of making Stone Single Fracture sample carries out slip-control-sliding test, and test accuracy is higher.

In order to achieve the above object, the technical scheme is that:

A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods, comprise the following steps:

(1) first axial split rock obtains rock disk, lower rock disk;

(2) the axial mistake of the upper fissure-plane of the lower fissure-plane of upper rock disk and lower rock disk is formed into horizontal rock list away from merging Crack;

(3) it is provided with what simulation shear-zone was present between the lower fissure-plane of upper rock disk and the upper fissure-plane of lower rock disk Tomography mud layer;

(4) finally it is wrapped with metal tube in upper rock disk and lower rock disk.

Rock is cylindrical rock in step (1), and its a diameter of 50mm is highly 100mm.

The axially symmetric splitting rock of step (1) obtains rock disk, lower rock disk.

In step (2) the upper fissure-plane of the lower fissure-plane of upper rock disk and lower rock disk axially it is wrong away from wrong away from distance be 20mm。

The thickness of step (3) interrupting layer mud layer is 1mm, and the length of tomography mud layer is 80mm, and the width of tomography mud layer is 50mm。

The internal diameter of metal tube is 50mm in step (4), and the length of metal tube is 120mm, and the thickness of metal tube is 0.5mm.

The beneficial effects of the invention are as follows:A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods, can use we The rock Single Fracture sample that method makes carries out slip-control-sliding test, the experiment of speed step-length and permeability test, analyzes rock The development law that fissure's friction sliding properties (time dependence and speed stability) and permeability are slided with crack, test accuracy It is higher.

Brief description of the drawings

Fig. 1 is structural representation of the invention.

Embodiment

Embodiment 1

A kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method as shown in Figure 1, comprises the following steps:

(1) first axial split rock obtains rock disk 1, lower rock disk 2;

(2) the axial mistake of the upper fissure-plane of the lower fissure-plane of upper rock disk 1 and lower rock disk 2 is formed into horizontal rock away from merging Single Fracture;

(3) simulation shear-zone is installed between the lower fissure-plane of upper rock disk 1 and the upper fissure-plane of lower rock disk 2 to exist Tomography mud layer 3;

(4) finally it is wrapped with metal tube 4 in upper rock disk 1 and lower rock disk 2.

Rock is cylindrical rock in step (1), and its a diameter of 50mm is highly 100mm.

The axially symmetric splitting rock of step (1) obtains rock disk 1, lower rock disk 2.

In step (2) the upper fissure-plane of the lower fissure-plane of upper rock disk 1 and lower rock disk 2 axially it is wrong away from wrong away from distance be 20mm.20mm is wrong, and rock fracture face can be achieved in relative slip interior in a big way in the setting away from distance.

The thickness of step (3) interrupting layer mud layer 3 is 1mm, and the length of tomography mud layer 3 is 80mm, and the width of tomography mud layer 3 is 50mm。

The internal diameter of metal tube 4 is 50mm in step (4), and the length of metal tube 4 is 120mm, and the thickness of metal tube 4 is 0.5mm.The setting of metal tube 4 can effectively prevent from causing the be collapsed of void area due to applying confined pressure.

A kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method of the present embodiment, the rock Single Fracture examination of making Sample carries out slip-control-sliding test, and test accuracy is higher.

Claims (6)

1. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method, it is characterised in that comprise the following steps:
(1) first axial split rock obtains rock disk (1), lower rock disk (2);
(2) the lower fissure-plane of upper rock disk (1) and the axial mistake of the upper fissure-plane of lower rock disk (2) are formed into horizontal rock away from merging Single Fracture;
(3) simulation shear-zone is installed between the lower fissure-plane of upper rock disk (1) and the upper fissure-plane of lower rock disk (2) to exist Tomography mud layer (3);
(4) finally it is wrapped with metal tube (4) in upper rock disk (1) and lower rock disk (2).
2. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method according to claim 1, it is characterised in that: Rock is cylindrical rock in step (1), and its a diameter of 50mm is highly 100mm.
3. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method according to claim 1, it is characterised in that: The axially symmetric splitting rock of step (1) obtains rock disk (1), lower rock disk (2).
4. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method according to claim 1, it is characterised in that: In step (2) the upper fissure-plane of the lower fissure-plane of upper rock disk (1) and lower rock disk (2) axially it is wrong away from wrong away from distance be 20mm。
5. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method according to claim 1, it is characterised in that: The thickness of step (3) interrupting layer mud layer (3) is 1mm, and the length of tomography mud layer (3) is 80mm, and the width of tomography mud layer (3) is 50mm。
6. a kind of three axles In Frictional Sliding of Rocks attribute testing sample preparation method according to claim 1, it is characterised in that: The internal diameter of metal tube (4) is 50mm in step (4), and the length of metal tube (4) is 120mm, and the thickness of metal tube (4) is 0.5mm.
CN201710344860.0A 2017-05-16 2017-05-16 A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods CN107153017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710344860.0A CN107153017A (en) 2017-05-16 2017-05-16 A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710344860.0A CN107153017A (en) 2017-05-16 2017-05-16 A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods

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CN107153017A true CN107153017A (en) 2017-09-12

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CN201710344860.0A CN107153017A (en) 2017-05-16 2017-05-16 A kind of three axle In Frictional Sliding of Rocks attribute testing sample preparation methods

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819878A (en) * 2015-04-23 2015-08-05 绍兴文理学院 Preparation method of rock fracture test sample and equivalent permeability parameter measuring method
CN105203411A (en) * 2015-11-06 2015-12-30 武汉大学 Slit shear-seepage coupling test system of triaxial cell and test method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104819878A (en) * 2015-04-23 2015-08-05 绍兴文理学院 Preparation method of rock fracture test sample and equivalent permeability parameter measuring method
CN105203411A (en) * 2015-11-06 2015-12-30 武汉大学 Slit shear-seepage coupling test system of triaxial cell and test method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
何昌荣等: ""龙门山断裂带沉积岩和天然断层泥的摩擦滑动性质与启示"", 《岩石力学与工程学报》 *
钟振 等: ""石灰岩裂隙摩擦滑动特性试验研究 "", 《岩土力学》 *

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