CN202956300U - Rock sample fissure prefabricating device - Google Patents

Rock sample fissure prefabricating device Download PDF

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Publication number
CN202956300U
CN202956300U CN 201220266140 CN201220266140U CN202956300U CN 202956300 U CN202956300 U CN 202956300U CN 201220266140 CN201220266140 CN 201220266140 CN 201220266140 U CN201220266140 U CN 201220266140U CN 202956300 U CN202956300 U CN 202956300U
Authority
CN
China
Prior art keywords
rock sample
fissure
prefabricating
hole
rock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220266140
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Chinese (zh)
Inventor
姚华彦
潘鹏志
江权
刘继光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Institute of Rock and Soil Mechanics of CAS
Original Assignee
Wuhan Institute of Rock and Soil Mechanics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wuhan Institute of Rock and Soil Mechanics of CAS filed Critical Wuhan Institute of Rock and Soil Mechanics of CAS
Priority to CN 201220266140 priority Critical patent/CN202956300U/en
Application granted granted Critical
Publication of CN202956300U publication Critical patent/CN202956300U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a rock sample mechanical test technology, in particular to a rock sample fissure prefabricating device. The rock sample fissure prefabricating device is composed of a pair of arc-shaped clamps and locking bolts. A through hole perpendicular to the wall surface is formed in the center of the wall surface of each arc-shaped clamp and through grooves are formed symmetrically at the edge of the through hole in the direction of the through hole. Depth of parallelism of two end surfaces of each arc-shaped clamp is smaller than 0.2mm. The rock sample fissure prefabricating device can prefabricate fissure in a rock sample by means of the though holes and the guide grooves and solves the problems that laser is applied to manufacturing the fissure for the rock sample and a steel saw is used for manufacturing the fissure on the side surface of the rock sample in the prior art. The rock sample fissure prefabricating device is simple in structure, convenient to use, and is especially appropriate for fissure prefabricating of a soft rock sample and smoothing of two end surfaces of the rock sample.

Description

Rock sample crackle fabricated device
Technical field
The utility model relates to a kind of rock mechanics experiment technology, more specifically a kind of rock sample crackle fabricated device.
Background technology
Have the crackle of various yardsticks in natural rock mass, the destructive process of rock namely germinating, the expansion of the various micro-cracks of rock interior or hole connects the Dynamic Evolution that causes the whole unstable failure of rock.Although fracturing mechanics can provide growth criterion and the direction of special single crackle in homogeneous material or regularity distribution crackle in theory, but for this special heterogeneous body of rock and anisotropic material, notional result and test (or engineering practice) result has very big difference.Therefore, the rupture process that contains the crackle rock is the hot issue of ROCK MECHANICS RESEARCH.Two kinds of approach of the normal employing of study of rocks Crack Extension problem: (1) utilizes analog material (as cement, glass) to make the sample that contains crackle, carries out the analog material test; (2) precrack on the rock sample sample of making.The analog material test can not reflect the mechanical property of rock sample itself fully.At present, make crackle and mainly contain by laser on the rock sample test specimen of making, or in the side of test specimen with the hacksaw making etc.Laser heating can be influential to the inside of rock sample, and the laser precrack is applicable to the small specimen that thickness only has several millimeters, and the mechanics that is not suitable for the conventional rock sample of rock mechanics (diameter 50mm, the right cylinder of high 100mm) is made; Hacksaw can only be made crackle from the test specimen side, can not study the situation that there is crackle sample inside.These are the actual conditions of simulation rock fully all.
Summary of the invention
For above-mentioned existing problems, the purpose of this utility model is to be to provide a kind of rock sample crackle fabricated device, to achieve these goals, technical solution of the present utility model is: rock sample crackle fabricated device, described rock sample crackle fabricated device is to be made of a pair of arc folder and clamping screw, have the through hole of vertical walls in the center of arc double wall face, have along the gathering sill of through hole direction in through hole edge symmetry.The depth of parallelism of arc folder both ends of the surface is less than 0.2mm.
Owing to having adopted above technical scheme, rock sample crackle fabricated device of the present utility model can be by through hole and gathering sill at the inside of rock sample precrack, solved and adopted laser and side of hacksaw, rock sample to be made the limitation of the method for crackle in the past, the depth of parallelism at arc folder two ends can guarantee the degree of accuracy of rock sample processing, the utility model reasonable in design, simple in structure, easy to use, be specially adapted to polishing of the prefabricated and both ends of the surface of the crackle of soft rock rock sample.
Description of drawings
Fig. 1 is the utility model rock sample crackle fabricated device structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is that the utility model uses view;
Wherein the 1-arc presss from both sides 2-clamping screw 3-nut 4-gathering sill 5-rock sample
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated
See accompanying drawing
Rock sample crackle fabricated device, described rock sample crackle fabricated device are to be made of a pair of arc folder 1 and clamping screw 2, nut 3, and the both sides of arc folder are provided with wing plate, have pilot hole on wing plate, and a pair of arc folder 1 is connected by clamping screw 2 by the pilot hole on wing plate.Have the through hole of vertical walls in the center of arc folder 1 wall, have gathering sill 4 along the through hole direction in through hole edge symmetry.The depth of parallelism of arc folder both ends of the surface is less than 0.2mm.
The main process that the rock sample precrack is made is as follows:
1, rock sample 4 is placed between two arc folders 1;
2, with clamping screw 2 and nut 3, arc folder 1 is fixed, guarantee slippage can not occur between fixture and rock sample;
3, fixture is fixed on bearing, just can holes to rock sample by the lead to the hole site of boring apparatus on arc folder 1.Then utilize and saw out the crackle of predetermined length and angle along gathering sill 4 with the boring on the steel wire penetrating rock sample of emery.
Its processing of the utility model rock sample crackle fabricated device is very simple and convenient, and adding the man-hour gathering sill can be processed into different angles and length by testing requirements.Can realize the making requirement of rock sample precrack.This device is fixed on rock sample by the fixture of screw bolt and nut with two arcs, by gathering sill precrack on the rock sample sample of reserving on fixture, can guarantee to make the crackle of preliminary dimension on rock sample.

Claims (2)

1. rock sample crackle fabricated device, it is characterized in that: described rock sample crackle fabricated device is to be made of a pair of arc folder (1), clamping screw (2), nut (3), have the through hole of vertical walls in the center of arc folder (1) wall, have gathering sill (4) along the through hole direction in through hole edge symmetry.
2. a kind of rock sample crackle fabricated device as claimed in claim 1 is characterized in that: the depth of parallelism of arc folder (1) both ends of the surface is less than 0.2mm.
CN 201220266140 2012-06-07 2012-06-07 Rock sample fissure prefabricating device Expired - Fee Related CN202956300U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220266140 CN202956300U (en) 2012-06-07 2012-06-07 Rock sample fissure prefabricating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220266140 CN202956300U (en) 2012-06-07 2012-06-07 Rock sample fissure prefabricating device

Publications (1)

Publication Number Publication Date
CN202956300U true CN202956300U (en) 2013-05-29

Family

ID=48461865

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220266140 Expired - Fee Related CN202956300U (en) 2012-06-07 2012-06-07 Rock sample fissure prefabricating device

Country Status (1)

Country Link
CN (1) CN202956300U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776673A (en) * 2014-01-16 2014-05-07 合肥工业大学 True-triaxial rock sample crack prefabricating device
CN105527135A (en) * 2014-10-23 2016-04-27 朱栗宝 Apparatus for making pre-cracked sample for material mechanical properties test
CN107328625A (en) * 2017-07-31 2017-11-07 水利部交通运输部国家能源局南京水利科学研究院 The method of crackle is close in a kind of simulation rock interior three-dimensional closing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776673A (en) * 2014-01-16 2014-05-07 合肥工业大学 True-triaxial rock sample crack prefabricating device
CN105527135A (en) * 2014-10-23 2016-04-27 朱栗宝 Apparatus for making pre-cracked sample for material mechanical properties test
CN105527135B (en) * 2014-10-23 2018-09-04 朱栗宝 A kind of producing device of the pre- precracked specimen of band of material mechanical performance test
CN107328625A (en) * 2017-07-31 2017-11-07 水利部交通运输部国家能源局南京水利科学研究院 The method of crackle is close in a kind of simulation rock interior three-dimensional closing
CN107328625B (en) * 2017-07-31 2020-07-03 水利部交通运输部国家能源局南京水利科学研究院 Method for simulating three-dimensional closed close-fitting cracks in rock

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130529

Termination date: 20130607