CN105891004A - Mine mud burst testing device and method - Google Patents

Mine mud burst testing device and method Download PDF

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Publication number
CN105891004A
CN105891004A CN201610367278.1A CN201610367278A CN105891004A CN 105891004 A CN105891004 A CN 105891004A CN 201610367278 A CN201610367278 A CN 201610367278A CN 105891004 A CN105891004 A CN 105891004A
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CN
China
Prior art keywords
pressure
test specimen
pressure chamber
stable
chamber
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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.)
Pending
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CN201610367278.1A
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Chinese (zh)
Inventor
柴红保
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN201610367278.1A priority Critical patent/CN105891004A/en
Publication of CN105891004A publication Critical patent/CN105891004A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/08Investigating permeability, pore-volume, or surface area of porous materials
    • G01N15/082Investigating permeability by forcing a fluid through a sample
    • G01N15/0826Investigating permeability by forcing a fluid through a sample and measuring fluid flow rate, i.e. permeation rate or pressure change
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G01N3/10Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
    • G01N3/12Pressure testing

Abstract

The invention discloses a mine mud burst testing device and method. The device mainly comprises a test piece unit, a loading unit, a pressure stabilizing unit and a measurement unit. The method mainly comprises the steps of placing a baffle on the bottom in a test piece pressure chamber; making a test piece slip into the test piece pressure chamber together with a sleeve; filling the test piece pressure chamber with water through a water injection and pressure stabilization hole; connecting the pressure stabilization unit to the water injection and pressure stabilization hole; starting the loading unit to apply pressure to the interior of the test piece pressure chamber, and stopping pressure application after pressure reaches a set value; starting the pressure stabilization unit to stabilize the pressure in the test piece pressure chamber; starting to measure the pressure in the test piece pressure chamber, the pressure of pores in the test piece and the volume of water permeating through the test piece through the measurement unit in real time; stopping measurement and stopping the loading unit and the pressure stabilization unit after the measurement unit shows that the pressure in the test piece pressure chamber is reduced suddenly and sharply. The device can simulate the water burst and mud burst process under high water pressure, and a good and lasting pressure stabilization effect can be realized.

Description

A kind of mine mud-burst assay device and test method
Technical field
The invention belongs to engineering geology technical field, be specifically related to a kind of mine mud-burst assay device and test side Method.
Background technology
Can run into rich water fault belt during underground mining, and easily occur gushing water to dash forward mud disaster, give Underground engineering construction safety and later stage operation security bring threat greatly.Shear-zone rock mass has hole Greatly, good penetrability, loosely organized broken, the feature such as intensity is low, water petrofacies interaction is induction fault disruption zone Band rock mass seepage failure, causes the key factor that prominent mud disaster occurs.Subsoil water can induce fragmented rock body crack Increase, and filling medium is washed away migration, cause the extension of initial penetrating passage, rock mass porosity and ooze Rate is continuously increased thoroughly, when stability and the permeability of rock mass structure produce when suddenling change, and just induction underground engineering is broken Layer gushing water is dashed forward mud disaster.Analyze fragmented rock body charges particle migration, rock mass structure under subsoil water comprehensive function The solid Interaction Mechanics effect of the Variable Mass Flow that deformation, porosity and permeability the most constantly increase, studies this mistake The seepage flow characteristics Changing Pattern of journey, discloses shear-zone Seepage of Rock Masses Sudden instability mechanism, and Study of The Underground engineering is broken Layer gushing water is dashed forward mud mechanism, sets up the technical system of hazard management, for reducing and controlling underground engineering gravely Matter disaster accident occurs, and ensures underground engineering construction safety, protection people life property safety and ecological and The aspects such as social environment, have great theory significance and construction value.
Under artesian water effect to be studied, tunnel occurs gushing water to dash forward the inherent mechanism of mud and infestation regularity, need to be equipped with phase It is that answer it can be considered that water pressure changes and the test apparatus device of aspis size factor.
Summary of the invention
First purpose of the present invention is that providing one can simulate gushing water under high hydraulic pressure dashes forward mud process, and energy Realize the good mine mud-burst assay device continuing voltage regulation result.
First purpose of the present invention realizes by the following technical solutions: this mine mud-burst test dress Putting, it includes specimen appliance, charger, stable-pressure device and measurement apparatus;Described specimen appliance includes solid Test specimen pressure chamber on support, the cylindrical sleeve equipped with test specimen is placed in test specimen pressure chamber, test specimen pressure Li Shi bottom centre leaves through hole and is provided with baffle plate, baffle center perforate;Described charger includes installing In test specimen pressure chamber counterforce device on one side, load cylinder, load cylinder and peace are installed bottom counterforce device The on-load pressure room being loaded on counterforce device top connects, and on-load pressure ceiling portion through hole is by pipeline and test specimen pressure Power ceiling portion lateral through aperture connects;Described load cylinder is provided accurate pressure by electro-hydraulic servo control;Described surely Pressure device includes the water filling pressure stable hole being arranged on test specimen pressure chamber top cover, water filling pressure stable hole and elevated pressure nitrogen gas tank Connect with gas-liquid composite constant setting-out case, for the hydraulic pressure stable to the offer of test specimen pressure chamber;Described measurement fills Put and include being connected to the pore pressure cell within test specimen from test specimen pressure chamber bottom through-hole, and be installed on test specimen Pressure chamber sidewall and the Pressure gauge that is connected in test specimen pressure chamber and be installed on the amount below baffle center perforate Cup.
Concrete, crust of the device and pipeline use steel plate or thick steel pipe to make.
Concrete, described test specimen is completing in advance in cylindrical sleeve and slip into test specimen together with sleeve In pressure chamber, sleeve and test specimen side fit tightly with test specimen pressure chamber inwall.
Concrete, described baffle plate is the baffle plate that a series of center drilling varies in size.
Concrete, described elevated pressure nitrogen gas tank is configured with servo pressure regulation valve and Pressure gauge.
Concrete, described measuring cup is placed on electronic balance.
Second object of the present invention is to provide test method based on above-mentioned mine mud-burst assay device, it Comprise the steps:
(1) baffle plate is selected to put into test specimen pressure chamber inner bottom part;
(2) test specimen of analog material is inserted in cylindrical sleeve, after analog material fully solidifies, will Test specimen slips in test specimen pressure chamber with sleeve;
(3) in test specimen pressure chamber, water is filled by water filling pressure stable hole;
(4) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure thereof are regulated valve and Pressure gauge is connected to note Water pressure stable hole;
(5) open the load cylinder plus-pressure in test specimen pressure chamber in charger, be pressurized to setting value Rear stopping is pressurizeed;
(6) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure regulation valve thereof and Pressure gauge are opened to test specimen Pressure room pressure carries out voltage stabilizing;
(7) start to measure test specimen pressure in real time by the Pressure gauge in measurement apparatus, pore pressure cell and measuring cup Power chamber pressure, test specimen inner pore pressure and the water yield penetrated by test specimen;
(8) stop measuring when measurement apparatus display test specimen pressure room pressure the most significantly reduces, and stop Only charger and stable-pressure device.
Further, the baffle plate in described step (1) is the baffle plate that a series of center drilling varies in size, logical Cross the different bore size of selection, the bore size impact on prominent mud can be analyzed;Described step (5) applies Water pressure can regulate stable at different pressures, the hydraulic pressure impact on prominent mud can be studied.
Beneficial effects of the present invention embodies as follows:
(1) assay device of the present invention, use the thick steel pipe of high intensity and steel plate as rig for model test, Model integral rigidity is higher, it is possible to bear bigger on-load pressure.
(2) the prominent mud mechanism under the test method of the present invention can simulate different effect of water pressure.
(3) the prominent mud mechanism under the test method of the present invention can simulate different bore size.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention embodiment.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Seeing Fig. 1, the device of the present embodiment includes specimen appliance, charger, stable-pressure device and measurement dress Put.It can be seen from figure 1 that specimen appliance includes the test specimen pressure chamber 1 being fixed on support 12, equipped with test specimen The cylindrical sleeve 3 of 2 is placed in test specimen pressure chamber 1, and test specimen pressure chamber 1 bottom centre leaves through hole and peace Equipped with baffle plate 4, baffle plate 4 center drilling;Baffle plate 4 is the baffle plate that a series of center drilling varies in size.Add Carry and put the counterforce device 8 including being installed on test specimen pressure chamber 1 left side, be provided with bottom counterforce device 8 and add Carrying oil cylinder 10, load cylinder 10 is connected with the on-load pressure room 9 being installed on counterforce device 8 top, loads Pressure chamber 9 top through hole is connected with test specimen pressure chamber 1 top left lateral through aperture by pipeline;Load cylinder 10 Accurate pressure is provided by electro-hydraulic servo control (being not drawn in figure).Stable-pressure device includes being arranged at test specimen pressure Water filling pressure stable hole 6 on the top cover of room 1, water filling pressure stable hole 6 is gentle with elevated pressure nitrogen gas tank (being not drawn in figure) The compound constant pressure water tank of liquid (being not drawn in figure) connect, elevated pressure nitrogen gas tank be configured with servo pressure regulation valve and Pressure gauge, for providing stable hydraulic pressure to test specimen pressure chamber 1.Measurement apparatus includes from test specimen pressure chamber 1 Bottom through-hole is connected to the pore pressure cell 5 within test specimen 2, and pore pressure cell 5 is monitored in test specimen 2 in real time The Pore Pressure force value in portion;Also include being installed on test specimen pressure chamber 1 left side wall and being connected in test specimen pressure chamber 1 Pressure gauge 7, the force value in test specimen pressure chamber 1 monitored in real time by Pressure gauge 7;And it is installed on baffle plate 4 Measuring cup 11 below center drilling, measuring cup 11 is placed on electronic balance, and measuring cup 11 is measured in real time and passed through test specimen 2 water yield penetrated and situations of change thereof.
Said apparatus shell and pipeline use steel plate or thick steel pipe to make.Above-mentioned test specimen 2 is at cylindrical shroud Complete in advance in cylinder 3 and slip into together with sleeve 3 in test specimen pressure chamber 1, sleeve 3 and test specimen 2 side Face fits tightly with test specimen pressure chamber 1 inwall.
The test method using above-described embodiment device is as follows:
(1) baffle plate 4 is selected to put into test specimen pressure chamber 1 inner bottom part;Baffle plate 4 is a series of center drilling The baffle plate varied in size, by selecting different bore size, can analyze the bore size impact on prominent mud;
(2) test specimen 2 of analog material is inserted in cylindrical sleeve 3, after analog material fully solidifies, Test specimen 2 is slipped in test specimen pressure chamber 1 with sleeve 3;
(3) in test specimen pressure chamber 1, water is filled by water filling pressure stable hole 6;
(4) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure thereof are regulated valve and Pressure gauge is connected to note Water pressure stable hole 6;
(5) open the load cylinder plus-pressure in test specimen pressure chamber 1 in charger, be pressurized to set Pressurization is stopped after value;The water pressure applied can regulate stable at different pressures, can study hydraulic pressure to prominent mud Impact;
(6) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure regulation valve thereof and Pressure gauge are opened to test specimen In pressure chamber 1, pressure carries out voltage stabilizing;
(7) start to measure test specimen pressure in real time by the Pressure gauge in measurement apparatus, pore pressure cell and measuring cup Power room 1 pressure, test specimen 2 inner pore pressure and the water yield penetrated by test specimen 2;
(8) when in measurement apparatus display test specimen pressure chamber 1, pressure the most significantly reduces, stopping is measured, and Stop charger and stable-pressure device.

Claims (8)

1. a mine mud-burst assay device, it is characterised in that: it include specimen appliance, charger, Stable-pressure device and measurement apparatus;Described specimen appliance includes the test specimen pressure chamber being fixed on support, equipped with examination The cylindrical sleeve of part is placed in test specimen pressure chamber, and test specimen pressure chamber bottom centre leaves through hole and is provided with gear Plate, baffle center perforate;Described charger includes being installed on test specimen pressure chamber counterforce device on one side, instead Being provided with load cylinder bottom power apparatus, load cylinder and the on-load pressure room being installed on counterforce device top connect Connecing, on-load pressure ceiling portion through hole is connected with test specimen pressure chamber top lateral through aperture by pipeline;Described loading Oil cylinder is provided accurate pressure by electro-hydraulic servo control;Described stable-pressure device includes being arranged at test specimen pressure chamber top cover On water filling pressure stable hole, the compound constant pressure water tank of water filling pressure stable hole liquid gentle with elevated pressure nitrogen gas tank is connected, and is used for Stable hydraulic pressure is provided to test specimen pressure chamber;Described measurement apparatus includes connecting from test specimen pressure chamber bottom through-hole To the pore pressure cell within test specimen, and it is installed on test specimen pressure chamber sidewall and is connected in test specimen pressure chamber Pressure gauge and be installed on the measuring cup below baffle center perforate.
Mine mud-burst assay device the most according to claim 1, it is characterised in that: crust of the device and pipe Road uses steel plate or thick steel pipe to make.
Mine mud-burst assay device the most according to claim 1, it is characterised in that: described test specimen be Complete in advance in cylindrical sleeve and slip in test specimen pressure chamber together with sleeve, sleeve and test specimen side Fit tightly with test specimen pressure chamber inwall.
Mine mud-burst assay device the most according to claim 1, it is characterised in that: described baffle plate is one The baffle plate that series center drilling varies in size.
Mine mud-burst assay device the most according to claim 1, it is characterised in that: described high pressure nitrogen Tank is configured with servo pressure regulation valve and Pressure gauge.
Mine mud-burst assay device the most according to claim 1, it is characterised in that: described measuring cup is placed in On electronic balance.
7. one kind based on the test method of mine mud-burst assay device described in claim 1, it is characterised in that Comprise the steps:
(1) baffle plate is selected to put into test specimen pressure chamber inner bottom part;
(2) test specimen of analog material is inserted in cylindrical sleeve, after analog material fully solidifies, will Test specimen slips in test specimen pressure chamber with sleeve;
(3) in test specimen pressure chamber, water is filled by water filling pressure stable hole;
(4) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure thereof are regulated valve and Pressure gauge is connected to note Water pressure stable hole;
(5) open the load cylinder plus-pressure in test specimen pressure chamber in charger, be pressurized to setting value Rear stopping is pressurizeed;
(6) the elevated pressure nitrogen gas tank in stable-pressure device and servo pressure regulation valve thereof and Pressure gauge are opened to test specimen Pressure room pressure carries out voltage stabilizing;
(7) start to measure test specimen pressure in real time by the Pressure gauge in measurement apparatus, pore pressure cell and measuring cup Power chamber pressure, test specimen inner pore pressure and the water yield penetrated by test specimen;
(8) stop measuring when measurement apparatus display test specimen pressure room pressure the most significantly reduces, and stop Only charger and stable-pressure device.
The test method of mine mud-burst assay device the most according to claim 7, it is characterised in that: institute Stating the baffle plate in step (1) is the baffle plate that a series of center drilling varies in size, by selecting different perforate Size, can analyze the bore size impact on prominent mud;The water pressure that described step (5) applies can be adjusted Joint is stable at different pressures, can study the hydraulic pressure impact on prominent mud.
CN201610367278.1A 2016-05-27 2016-05-27 Mine mud burst testing device and method Pending CN105891004A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610367278.1A CN105891004A (en) 2016-05-27 2016-05-27 Mine mud burst testing device and method

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Application Number Priority Date Filing Date Title
CN201610367278.1A CN105891004A (en) 2016-05-27 2016-05-27 Mine mud burst testing device and method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109187310A (en) * 2018-09-28 2019-01-11 中国科学院武汉岩土力学研究所 Groundwater seepage and wash away rock analogy method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576458A (en) * 2009-06-08 2009-11-11 中国矿业大学(北京) Geomechanics test platform for water invasion regularity of mine
CN103940719A (en) * 2014-04-15 2014-07-23 西安科技大学 Coal body permeability characteristic testing system and method
CN104237025A (en) * 2014-10-10 2014-12-24 山东科技大学 Mining fracturing simulating test method for sealing drilling
CN104614495A (en) * 2015-02-04 2015-05-13 黄震 Water outburst and mud outburst testing device for high pressure-bearing tunnel
CN104819898A (en) * 2015-05-14 2015-08-05 中国矿业大学(北京) Mining rock crack extension test device and test method
CN105319154A (en) * 2015-11-20 2016-02-10 山东大学 Tunnel seepage instability model test device and test method with ground pressure and water pressure controllable
CN205643028U (en) * 2016-05-27 2016-10-12 湖南科技大学 Mine is mud test device suddenly

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576458A (en) * 2009-06-08 2009-11-11 中国矿业大学(北京) Geomechanics test platform for water invasion regularity of mine
CN103940719A (en) * 2014-04-15 2014-07-23 西安科技大学 Coal body permeability characteristic testing system and method
CN104237025A (en) * 2014-10-10 2014-12-24 山东科技大学 Mining fracturing simulating test method for sealing drilling
CN104614495A (en) * 2015-02-04 2015-05-13 黄震 Water outburst and mud outburst testing device for high pressure-bearing tunnel
CN104819898A (en) * 2015-05-14 2015-08-05 中国矿业大学(北京) Mining rock crack extension test device and test method
CN105319154A (en) * 2015-11-20 2016-02-10 山东大学 Tunnel seepage instability model test device and test method with ground pressure and water pressure controllable
CN205643028U (en) * 2016-05-27 2016-10-12 湖南科技大学 Mine is mud test device suddenly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109187310A (en) * 2018-09-28 2019-01-11 中国科学院武汉岩土力学研究所 Groundwater seepage and wash away rock analogy method

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