CN106501039A - Judge the tendentious method of coal body relative impact - Google Patents

Judge the tendentious method of coal body relative impact Download PDF

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Publication number
CN106501039A
CN106501039A CN201610915515.3A CN201610915515A CN106501039A CN 106501039 A CN106501039 A CN 106501039A CN 201610915515 A CN201610915515 A CN 201610915515A CN 106501039 A CN106501039 A CN 106501039A
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CN
China
Prior art keywords
test
coal
burst tendency
relative
standard
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Pending
Application number
CN201610915515.3A
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Chinese (zh)
Inventor
潘立友
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Priority to CN201610915515.3A priority Critical patent/CN106501039A/en
Publication of CN106501039A publication Critical patent/CN106501039A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N2001/2893—Preparing calibration standards

Abstract

The invention discloses a kind of judge the tendentious method of coal body relative impact, it is that the coal sample for taking scene carries out routine test, and then making sample carries out relative test, makes relative Burst Tendency index Test standard；When needing certain Burst Tendency of Coal Seam to test, take coal crusher at the scene and be processed into coal dust, carry out standard specimen, Burst Tendency test is carried out in use for laboratory forcing press, the result of the test for obtaining is compared with relative test index system, determines that the Burst Tendency in certain coal seam is strong and weak.The present invention is by carrying out relative indicatrix test to coal body, it is to avoid coal seam internal flaw is had a strong impact on to result of the test, can truly reflect the Burst Tendency in coal seam, and there is positive role to preventing and treating bump.

Description

Judge the tendentious method of coal body relative impact
Technical field
The invention belongs to Coal Mining Technology field.
Background technology
The reason for bump occurs includes that endexoteric, internal cause are primarily referred to as coal seam itself with Burst Tendency, External cause is mainly some dynamic phenomenons that recovery activity etc. causes.Such as coal and gas prominent, bump, coal is quick-fried etc., often with The Burst Tendency of coal itself is relevant.With the increase of pit mining depth, the power of this Burst Tendency initiation in coal seam Disaster is increasingly severe, simultaneously because the power calamity of the initiation such as the complication of the boundary condition of pit mining, geological structure, tomography Evil is increasingly severe with phenomenon.Before big dynamic disaster occurs, Burst Tendency detection can be carried out to the coal seam that exploits, so After take the necessary measures, be administer dynamic phenomenon premise.
Burst Tendency of Coal Seam test is typically carried out in use for laboratory forcing press, is first materialsed, and the test specimen for making standard is (high 100mm, diameter 50mm；High 100mm, length and width 50mm), on forcing press, then carry out routine test, the so result of test The tendentiousness of test rock can only be represented, test rock is taken from certain point live, includes crack, joint, hole, moisture content Etc. the factor such as defect and artificial vibration, during test, these defects can have a strong impact on result of the test.Coal body sample can not represent coal body Overall permanence itself, belongs to the result of the test of a measuring point of discreteness.So test is to instructing safety in production to produce great difference The opposite sex, especially for bump danger coal seam, comprehensively, truly can reflect that coal body essential attribute is only the pass of solve problem Key.
Content of the invention
In order to reflect that coal body real impact essential attribute, the present invention use for reference the test method of strength of cement, a kind of letter is proposed The tendentious method of single judgement coal body relative impact.
For reaching above-mentioned purpose, the present invention is adopted the technical scheme that：
One kind judges the tendentious method of coal body relative impact, it is characterised in that step is as follows：
The first step, field sampling
According to bump situation is had occurred and that, the different coal seam of multiple burst trends is chosen at the scene, by existing coring Standard takes coal sample, is sealed up for safekeeping, it is to avoid destruction, keeps ortho states；
Second step, routine test
According to existing routine test standard, coal sample Burst Tendency test is carried out, obtain each different coal burst trend The baseline results of property；
3rd step, break process
By the coal body of above-mentioned different tests result, crush respectively, be milled into similar soil sample, carry out similar soil cement test, Coal sample is carried out slow crushing process, the coal dust of similar soil sample is milled into.
4th step, making sample carry out relative test, make relative Burst Tendency index Test standard
Respectively by above-mentioned coal dust and cement mix even be made into standard specimen, carry out impact according to routine test standard respectively and incline Tropism is tested, and obtains the new result of the test of the Burst Tendency of each standard specimen, then new result of the test and baseline results are entered Row normalized, makes relative Burst Tendency index Test standard, sets up relative test index system.
5th step, when needing certain Burst Tendency of Coal Seam to test, take coal crusher at the scene and be processed into coal dust, then take with The cement of the same label of the 4th step, and according to the part by weight same with the 4th step, mix even be made into standard specimen, in laboratory Burst Tendency test is carried out with forcing press, the result of the test for obtaining is compared with relative test index system, determine certain coal The Burst Tendency of layer is strong and weak.
The positive effect of the present invention is：By carrying out relative indicatrix test to coal body, it is to avoid coal seam internal flaw pair Having a strong impact on for result of the test, can truly reflect the Burst Tendency in coal seam, and there is positive role to preventing and treating bump.
Specific embodiment
Those skilled in the art can implement according to content of the invention step, will not be described in detail herein.

Claims (1)

1. one kind judges the tendentious method of coal body relative impact, it is characterised in that step is as follows：
The first step, field sampling
According to bump situation is had occurred and that, the different coal seam of multiple burst trends is chosen at the scene, by existing coring standard Coal sample is taken, is sealed up for safekeeping, it is to avoid destruction, keep ortho states；
Second step, routine test
According to existing routine test standard, coal sample Burst Tendency test is carried out, each different coal Burst Tendency is obtained Baseline results；
3rd step, break process
By the coal body of above-mentioned different tests result, crush respectively, be milled into similar soil sample, carry out similar soil cement test, by coal Sample carries out slow crushing process, is milled into the coal dust of similar soil sample；
4th step, making sample carry out relative test, make relative Burst Tendency index Test standard
Respectively by above-mentioned coal dust and cement mix even be made into standard specimen, carry out Burst Tendency according to routine test standard respectively Test, obtains the new result of the test of the Burst Tendency of each standard specimen, then new result of the test and baseline results is returned One change is processed, and is made relative Burst Tendency index Test standard, is set up relative test index system；
5th step, when needing certain Burst Tendency of Coal Seam to test, take coal crusher at the scene and be processed into coal dust, then take and the 4th Walk the cement of same label, and according to the part by weight same with the 4th step, mix even be made into standard specimen, in use for laboratory pressure Power machine carries out Burst Tendency test, and the result of the test for obtaining is compared with relative test index system, certain coal seam is determined Burst Tendency is strong and weak.
CN201610915515.3A 2016-10-20 2016-10-20 Judge the tendentious method of coal body relative impact Pending CN106501039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610915515.3A CN106501039A (en) 2016-10-20 2016-10-20 Judge the tendentious method of coal body relative impact

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Application Number Priority Date Filing Date Title
CN201610915515.3A CN106501039A (en) 2016-10-20 2016-10-20 Judge the tendentious method of coal body relative impact

Publications (1)

Publication Number Publication Date
CN106501039A true CN106501039A (en) 2017-03-15

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107402288A (en) * 2017-08-18 2017-11-28 中国矿业大学(北京) A kind of coal Burst Tendency method of testing based on stratification effect
CN108710759A (en) * 2018-05-18 2018-10-26 辽宁工程技术大学 A method of Burst Tendency is judged by in-site measurement coal softening modulus index
CN110792419A (en) * 2019-10-18 2020-02-14 太原理工大学 Coal mine rock burst well up-down advance pre-control method
CN112557167A (en) * 2020-12-18 2021-03-26 山东科技大学 In-situ coal impact tendency observation method
CN114105599A (en) * 2021-10-20 2022-03-01 中国矿业大学 Low-strength high-impact coal similarity simulation material and preparation method thereof

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CN103245539A (en) * 2013-04-22 2013-08-14 河南理工大学 Manufacturing method of coal samples with different water contents
CN105021457A (en) * 2015-07-02 2015-11-04 山东科技大学 Test and evaluation method for deep hard roof coal seam bump proneness
CN105223093A (en) * 2015-11-12 2016-01-06 辽宁工程技术大学 Based on coal body Burst Tendency experimental provision and the method for drilling hole burst equivalent stress
CN105259032A (en) * 2015-09-30 2016-01-20 山东科技大学 Method for testing coal brittleness on spot in real time

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CN103245539A (en) * 2013-04-22 2013-08-14 河南理工大学 Manufacturing method of coal samples with different water contents
CN105021457A (en) * 2015-07-02 2015-11-04 山东科技大学 Test and evaluation method for deep hard roof coal seam bump proneness
CN105259032A (en) * 2015-09-30 2016-01-20 山东科技大学 Method for testing coal brittleness on spot in real time
CN105223093A (en) * 2015-11-12 2016-01-06 辽宁工程技术大学 Based on coal body Burst Tendency experimental provision and the method for drilling hole burst equivalent stress

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107402288A (en) * 2017-08-18 2017-11-28 中国矿业大学(北京) A kind of coal Burst Tendency method of testing based on stratification effect
CN108710759A (en) * 2018-05-18 2018-10-26 辽宁工程技术大学 A method of Burst Tendency is judged by in-site measurement coal softening modulus index
CN110792419A (en) * 2019-10-18 2020-02-14 太原理工大学 Coal mine rock burst well up-down advance pre-control method
CN110792419B (en) * 2019-10-18 2021-07-16 太原理工大学 Coal mine rock burst well up-down advance pre-control method
CN112557167A (en) * 2020-12-18 2021-03-26 山东科技大学 In-situ coal impact tendency observation method
CN114105599A (en) * 2021-10-20 2022-03-01 中国矿业大学 Low-strength high-impact coal similarity simulation material and preparation method thereof
CN114105599B (en) * 2021-10-20 2022-07-08 中国矿业大学 Low-strength high-impact coal similarity simulation material and preparation method thereof

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Application publication date: 20170315