CN104266913A - Mining failure simulation test device for mine working face floor - Google Patents

Mining failure simulation test device for mine working face floor Download PDF

Info

Publication number
CN104266913A
CN104266913A CN201410529007.2A CN201410529007A CN104266913A CN 104266913 A CN104266913 A CN 104266913A CN 201410529007 A CN201410529007 A CN 201410529007A CN 104266913 A CN104266913 A CN 104266913A
Authority
CN
China
Prior art keywords
test
stress
rock mass
floor
unloading
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.)
Granted
Application number
CN201410529007.2A
Other languages
Chinese (zh)
Other versions
CN104266913B (en
Inventor
肖乐乐
魏久传
牛超
尹会永
郭建斌
谢道雷
张伟杰
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.)
Shandong University of Science and Technology
Xian University of Science and Technology
Original Assignee
Shandong University of Science and Technology
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 Shandong University of Science and Technology filed Critical Shandong University of Science and Technology
Priority to CN201410529007.2A priority Critical patent/CN104266913B/en
Publication of CN104266913A publication Critical patent/CN104266913A/en
Application granted granted Critical
Publication of CN104266913B publication Critical patent/CN104266913B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention belongs to the technical field of failure simulation test equipment for a coal mine working face floor, and relates to a mining failure simulation test device for a mine working face floor. Lateral loading fixers fixedly connected with lateral fixing plates are arranged at the two ends of a platform base; stress monitoring points are uniformly distributed on a tested rock mass at same depth in the horizontal direction; the stress monitoring points are connected with a stress acquisition system; an unloading and loading plate is fixedly installed at the upper end of the tested rock mass; detachable side edges are respectively installed on the two sides of the unloading and loading plate; a hydraulic servo unloading and loading unit is arranged between a top loading body and the unloading and loading plate; a main hydraulic servo loader is installed at the upper part of the top loading body; the main hydraulic servo loader is communicated with a top hydraulic pipeline; a hydraulic control servo system is connected with the main hydraulic servo loader, the hydraulic servo unloading and loading unit and the lateral loading fixer respectively. The mining failure simulation test device for the mine working face floor is simple in structure, scientific in principle, convenient to maintain, accurate in monitored data and convenient to operate.

Description

A kind of mine working face base plate Mining failure simulation test device
Technical field:
The invention belongs to coal mine work area coal seam floor failure simulated test facility technical field, relate to a kind of mine working face base plate Mining failure simulation test device.
Background technology:
At present, along with seam mining is constantly deepened, tectonic structure and hydrogeology increasingly sophisticated, rock pressure [in mine and the collapse dept of mining-induced stress to base plate continue to increase, the leptophragmata water layer run into during group coal under exploitation, water-bearing with high pressure adopts gushing water problem more and more becomes mine water disaster chief threat, China originates in the sixties in Water Inrush law study, noticed the theoretical application in practice of Hungary's base plate relative water resisting layer at that time, in the hydrogeology decisive battle of Jiaozuo Mine Field, with coal academy of sciences Xi'an exploration branch for representative, propose and adopt water bursting coefficient as prediction Water Inrush whether standard, at the beginning of the eighties, by the theoretical point view of University Of Science and Technology Of Shandong chaste tree from just proposition " Down Three Zone " in practice, and carry out application and development in practice by a collection of scientific research personnel represented with li po Ying Wei, coal academy of sciences Beijing exploitation institute king do the people such as space, Liu Hongquan in the beginning of the nineties in last century propose original position open split and Zero Position Failure theoretical, coal academy of sciences Beijing exploitation institute Liu Tianquan academician, Zhang Jincai equals the model proposing floor rock " two bands " nineties in last century, and Chinese Academy of Sciences's geology is set forth in be said the proposition nineties in last century " oozing passage by force ", Xi’an Branch of Mei Ke institute proposes rock water stress relation the nineties in last century " say.China Mining University Qian Minggao academician, the outstanding layer structure feature according to floor strata of Li Liang, establish the vital edge of stope sill rock mass in the mid-90 in last century.The model of theory that the beginning of this century executes imperial green grass or young crops by University Of Science and Technology Of Shandong, Song Zhen black horse academician proposition is working seam base plate " lower four bands ".Above-mentioned Water Inrush and coal seam floor failure research mainly calculate with theory of mechanics and numerical software is modeled as master, and plate destructing depth detection is based on physical prospecting detection, pouring water into borehole and ultrasonic listening.Roof fracture in face surrounding rock motion is grown, motion can utilize indoor analog simulation to test, but carries out simulation test to stope sill destruction; Meanwhile, current seam mining is large-scale fully-mechanized mining equipment and comes and goes the coal breakage that lancinates, and caving zone rock is compacting gob floor again, to these Mining technology condition also similar analogy method useless.Therefore, in conjunction with current Coal Mining Technology present situation, develop a kind of mine working face base plate Mining failure simulation test device, test simulation is carried out in the Mining failure behavior that can be subject to base plate, in conjunction with means such as rock mechanics experiment, Damage-fracture mechanics theory, numerical simulation calculation, disclose base plate Mining failure mechanism, solve at present by a Mining failure Water Inrush difficult problem.
Summary of the invention:
The object of the invention is to the shortcoming overcoming prior art existence, seek design and a kind of mine working face base plate Mining failure simulation test device is provided, exploitation mine working face base plate Mining failure analogue test platform.
To achieve these goals, the mine working face base plate Mining failure simulation test device agent structure that the present invention relates to comprises main hydraulic-servo-load device, top-loaded body, hydraulic servo unloading loader, unloading load plate, side direction fixed head, side direction loaded holders, platform base, fluid pressure line, top fluid pressure line, stress monitoring point, stress acquisition system, hydraulic servo control system, detachable side and test rock mass; Platform base two ends symmetrical expression is fixedly shaped with side direction loaded holders, in order to the loading effect of analog side to tectonic stress formation; Side direction loaded holders is fixedly connected with side direction fixed head, and during the work of side direction loaded holders, side direction fixed head contacts with test rock mass and loads; Test rock mass is fixed on platform base by side direction fixed head by side direction loaded holders; The test same depth level direction of rock mass is uniformly distributed with the distribution density of two every meter and is shaped with stress monitoring point, and stress monitoring point adopts ess-strain sheet type sensor, gathers base sheet stresses distribution characteristics; Stress monitoring point is connected with stress acquisition system, the stress-strain data of the automatic collecting test rock mass of stress acquisition system; The upper end fixed installation of test rock mass is shaped with unloading load plate, and unloading load plate both sides distributing installation is shaped with detachable side, and the stress that detachable side transmits in simulation test is the main cause destroying base plate; Hydraulic servo unloading loader is provided with between top-loaded body and unloading load plate, hydraulic servo unloading loader is made up of one group of unloading loader, the quantity of unloading loader is consistent with the quantity of unloading load plate, and firmly connect, release effect to floor undulation after hydraulic servo unloading loader analog operation face coal seam extraction, also in the old dead zone of analog operation face top board, immediate roof emits backwardness again to carry out recovery loading effect to base plate; Top-loaded body top is installed and is shaped with main hydraulic-servo-load device, main hydraulic-servo-load device simulates vertically stress by on-load pressure, the total earnings of test starting stage is loaded, when workplace adopts hydrodynamic pressure servo unloading loader release, main hydraulic-servo-load device still keeps original state, and total pressure is existed always; Main hydraulic-servo-load device is communicated with top fluid pressure line; Loader is unloaded with main hydraulic-servo-load device, hydraulic servo respectively with the hydrostatic control servo-drive system of power control system and side direction loaded holders is connected as whole device power source.
To mine working face base plate Mining failure, the present invention carries out that simulation test comprises the test preparation of rock mass, mine working face base plate adopts the test of coal seam floor failure simulation test and mine working face is adopted floor failure mechanism and analyzed three steps, and specific embodiment is:
(1) preparation of rock mass, is tested: test rock mass has two kinds, for the mine working face floor rock collected when mine working face tunnelling, during preparation, the plane of mine working face floor rock will meet the standard of rock mechanics experiment defined in prior art; Another kind of is the floor undulation prepared with mine working face floor rock similar materials, it prepares material mixture ratio with mine working face floor rock mechanical test parameter for instructing, and rock mechanics parameters comprises tensile strength (MPa), compressive strength (MPa), shearing strength (MPa), cohesion (MPa), angle of internal friction (°), bulk modulus (GPa), modulus of shearing (GPa), Poisson ratio, size (m), density (kg/m -3); The length of the test rock mass of preparation is 55cm, and wide is 55cm, and height is 20cm, and when test Mining in Rock Mass is with workplace floor rock rock sample, its plane will adopt prior art to carry out formation measurement;
(2), mine working face base plate Mining failure simulation test test: first by side direction fixed head and side direction loaded holders, test rock mass is fixed on platform base, loads lateral stress simultaneously; Again main hydraulic-servo-load device declined with top-loaded body and contact with test rock mass, load perpendicular stress, load time is 1 ~ 2 day, after test rock mass ambient stress is stable, adjustment hydraulic servo unloading loader, open hydraulic servo unloading loader and unload die pressing type, open after the perpendicular stress stress that loading and unloading pressure is identical and reload pattern, in order to simulate the Mining technology condition of the release of seam mining base plate and caving zone rock compaction; Test is carried out in process, opens stress monitoring system, carries out data monitoring and collection; Then utilize outside existing acoustic emission monitoring system, the test rock mass fracture growth in process of the test is monitored; After having tested, outside existing supersonic sounding device is utilized to detect the test rock mass after destruction, the monitoring rock sample cranny development degree of depth and bearing features;
(3) floor failure mechanism analysis is adopted: based on the mechanical property of testing rock mass, carry out Mining failure numerical simulation analysis, base sheet stresses distribution characteristics is adopted in calculating, analyzes and adopts base plate elastoplasticity subregion, and contrast with the stress data of simulation test collection; Floor failure mechanism is adopted in analysis, and simultaneously to adopting plate destructing depth research, to solve base plate leptophragmata water layer, water-bearing with high pressure adopts a gushing water difficult problem.
Numerical simulation analysis of the present invention adopts existing FLAC-3D (Three Dimensional Fast Lagrangian Analysis of Continua) software, FLAC-3D is the three-dimensional control network program that American I tasca Consulting Group Inc develops, the mechanical behavior of the destruction that energy simulate geological materials occurs when reaching strength degree or yield limit or Plastic Flow, is specially adapted to analyze Progressive failure and unstability and simulate large deformation.
Floor failure mechanism of the present invention utilizes rock stratum base plate to adopt stress distribution feature, destructive characteristics, analyze the failure law of base plate under mining influence, namely by building floor strata constitutive model, set up breakdown strength criterion, analyze floor strata stress ~ strain stress relation, obtain the elastoplasticity distributed areas after coal seam floor failure, the Growth Depth of coal seam floor failure, coal seam floor failure and production practice, workplace size, workplace absolute altitude, push to adopt speed, the correlativity of the operational parameters such as roof and floor lithologic, and the numerical computational formulas of plate destructing depth of deriving, formula of reduction.
The present invention utilizes Damage-fracture mechanics theoretical, according to " simulation test-numerical simulation-theoretical analysis " guideline, analyze mine working face base plate mining-induced fissure law of development, disclose the seat earth leptophragmata water layer water-bearing with high pressure mechanism of water inrush that current mine runs into, floor failure mechanism gordian technique is adopted in research.
The present invention compared with prior art, have the following advantages: one is according to " simulation test-numerical simulation-theoretical analysis " guideline, analyze mine working face base plate mining-induced fissure law of development, disclose the seat earth leptophragmata water layer water-bearing with high pressure mechanism of water inrush that current mine runs into, floor failure mechanism gordian technique is adopted in research; Two is that design is rigorous, and power control system adopts hydraulic servo device, and cranny development adopts acoustic emission device, crack detection adopts supersonic sounding device, by comprehensive means, improve the research precision to adopting coal seam floor failure cranny development, the control of mine floor water damage has general directive significance; Its structure is simple, and scientific in principle is easy to maintenance, and Monitoring Data is accurate, easy to operate, to the simulation of mine working face base plate Mining failure, solves existing mine working face Mining failure Water Inrush problem.
Accompanying drawing illustrates:
Fig. 1 is agent structure principle schematic of the present invention.
Fig. 2 is agent structure three-dimensional side view of the present invention.
Embodiment:
Below by embodiment, also the present invention will be further described by reference to the accompanying drawings.
Embodiment:
The mine working face base plate Mining failure simulation test device that the present embodiment relates to comprises main hydraulic-servo-load device 101, top-loaded body 102, hydraulic servo unloading loader 103, unloading load plate 104, side direction fixed head 105, side direction loaded holders 106, platform base 107, fluid pressure line 108, top fluid pressure line 109, stress monitoring point 110, stress acquisition system 111, hydraulic servo control system 112, detachable side 113 and test rock mass 114; Platform base 107 two ends symmetrical expression is fixedly shaped with side direction loaded holders 106, in order to the loading effect of analog side to tectonic stress formation; Side direction loaded holders 106 is fixedly connected with side direction fixed head 105, and when side direction loaded holders 106 works, side direction fixed head 105 contacts with test rock mass 114 and loads; Test rock mass 114 is fixed on platform base 107 by side direction fixed head 105 by side direction loaded holders 106; The test same depth level direction of rock mass 114 is uniformly distributed with the distribution density of two every meter and is shaped with stress monitoring point 110, and stress monitoring point 110 is ess-strain sheet type sensor, gathers base sheet stresses distribution characteristics; Stress monitoring point 110 is connected with stress acquisition system 111, the stress-strain data of the automatic collecting test rock mass 114 of stress acquisition system 111; The upper end fixed installation of test rock mass 114 is shaped with unloading load plate 104, and unloading load plate 104 both sides distributing installation is shaped with detachable side 113, and the stress that detachable side 113 transmits in simulation test is the main cause destroying base plate; Hydraulic servo unloading loader 103 is provided with between top-loaded body 102 and unloading load plate 104, hydraulic servo unloading loader 103 is made up of one group of unloading loader, the quantity of unloading loader is consistent with the quantity of unloading load plate 104, and firmly connect, release effect to floor undulation after hydraulic servo unloading loader 103 analog operation face coal seam extraction, also in the old dead zone of analog operation face top board, immediate roof emits backwardness again to carry out recovery loading effect to base plate; Top-loaded body 102 top is installed and is shaped with main hydraulic-servo-load device 101, main hydraulic-servo-load device 101 simulates vertically stress by on-load pressure, the total earnings of test starting stage is loaded, when workplace adopts hydrodynamic pressure servo unloading loader 103 release, main hydraulic-servo-load device 101 still keeps original state, and total pressure is existed always; Main hydraulic-servo-load device 101 is communicated with top fluid pressure line 109; Loader 103 is unloaded with main hydraulic-servo-load device 101, hydraulic servo respectively with the hydrostatic control servo-drive system 112 of power control system and side direction loaded holders 106 is connected as whole device power source.
The present invention adopts mine working face base plate Mining failure simulation test device to carry out simulation test to mine working face base plate Mining failure, comprise the test preparation of rock mass 114, mine working face base plate adopts the test of coal seam floor failure simulation test and mine working face is adopted floor failure mechanism and analyzed three steps, specific embodiment is:
(1) preparation of rock mass 114, is tested: test rock mass 114 has two kinds, for the mine working face floor rock collected when mine working face tunnelling, during preparation, the plane of mine working face floor rock will meet the standard of rock mechanics experiment defined in prior art; Another kind of is the floor undulation prepared with mine working face floor rock similar materials, it prepares material mixture ratio with mine working face floor rock mechanical test parameter for instructing, and rock mechanics parameters comprises tensile strength (MPa), compressive strength (MPa), shearing strength (MPa), cohesion (MPa), angle of internal friction (°), bulk modulus (GPa), modulus of shearing (GPa), Poisson ratio, size (m), density (kg/m -3); The length of test rock mass 114 of preparation is 55cm, and wide be 55cm, and height is 20cm, and test rock mass 114 when adopting floor undulation rock rock sample, its plane will adopt prior art to carry out formation measurement;
(2), mine working face base plate Mining failure simulation test test: first by side direction fixed head 105 and side direction loaded holders 106, test rock mass 114 is fixed on platform base 107, loads lateral stress simultaneously; Again main hydraulic-servo-load device 101 declined with top-loaded body 102 and contact with test rock mass 114, load vertical stress, load time is 1 ~ 2 day, after test rock mass ambient stress is stable, adjustment hydraulic servo unloading loader 103, open hydraulic servo unloading loader 103 and unload die pressing type, open after the perpendicular stress that loading and unloading stress is identical and reload pattern, in order to simulate the Mining technology condition of the release of seam mining base plate and caving zone rock compaction; Test is carried out in process, opens stress monitoring system 111, carries out data monitoring and collection; Then utilize outside existing acoustic emission monitoring system, test rock mass 114 cranny development in process of the test is monitored; After having tested, outside existing supersonic sounding device is utilized to detect the test rock mass 114 after destruction, the monitoring rock sample cranny development degree of depth and bearing features;
(3) floor failure mechanism analysis is adopted: based on the mechanical property of testing rock mass 114, carry out Mining failure numerical experiments, base sheet stresses distribution characteristics is adopted in calculating, analyzes and adopts base plate elastoplasticity subregion, and contrast with the stress data of simulation test collection; Floor failure mechanism is adopted in analysis, and simultaneously to adopting plate destructing depth research, to solve base plate leptophragmata water layer, water-bearing with high pressure adopts a gushing water difficult problem.
Numerical simulation analysis described in the present embodiment adopts existing FLAC-3D (Three Dimensional Fast Lagrangian Analysis of Continua) software, FLAC-3D is the three-dimensional control network program that American I tasca Consulting Group Inc develops, the mechanical behavior of the destruction that energy simulate geological materials occurs when reaching strength degree or yield limit or Plastic Flow, is specially adapted to analyze Progressive failure and unstability and simulate large deformation; According to field with "nine squares" internal drilling data (boring discloses zone thickness, lithology, absolute altitude, Pumping Test Data etc.), and in conjunction with rock mechanics experiment data, adopt its rock mechanics parameters; The foundation of numerical simulator needs the absolute altitude, tensile strength (MPa), shearing strength (MPa), cohesion (MPa), angle of internal friction (°), bulk modulus (GPa), modulus of shearing (GPa), Poisson ratio, size (m), the density (kg/m that determine working seam, around overlying strata -3), concrete modeling process is: level gets 400m, vertically gets 150m, due to be simulation under organize coal seam, add deadweight 260m, face propulsion speed is 8m/ days, analyzes according to analog result, and along with the propelling of workplace, base plate has following Changing Pattern:
(1) as advance of the face 20m, base plate starts to be disturbed, and occurs that tension is destroyed, is mainly and draws fail in shear, and plate destructing depth is 6m.Because abutment pressure effect rib two ends start to occur that stress is concentrated, the most easily destroy, major principal stress value is-8MPa, and form is arch, and stress value outwards increases by cutting eye, illustrates the closer to workplace, and rock stratum pressured state is more obvious;
(2), when working face mining is to 60m, floor strata major principal stress coverage expands, but its form does not change, and principle stress value is-8.8MPa to the maximum, and coal seam floor failure is mainly shear failure, and plate destructing depth is 20m.
(3), when working face mining is to 100m, base plate major principal stress continues to the development of deep, rock stratum, and major principal stress is inner mild, and principle stress maximal value is-8.1MPa, and influence range of stress is with advance of the face expanded forward; Mainly occur shear failure, plate destructing depth 30m, its reason is with the advance of the face, and the effect that seat earth front is in support pressure is compressed.After workplace pushes through, stress relief, base plate is in swelling state; In the process that workplace constantly advances, base plate is in the state of compression-expansion-recompression all the time, and therefore in the zone of transition of compression with dilatational strain, shearing flow and destroying the most easily appears in base plate.
(4), after Seam Mining, cut stress near eye and concentrate, easily deform and produce crack, therefore at the mining-induced fissure comparative development cutting eye place and rib front base plate, easily form projective water point.

Claims (2)

1. a mine working face base plate Mining failure simulation test device, is characterized in that agent structure comprises main hydraulic-servo-load device, top-loaded body, hydraulic servo unloading loader, unloading load plate, side direction fixed head, side direction loaded holders, platform base, fluid pressure line, top fluid pressure line, stress monitoring point, stress acquisition system, hydraulic servo control system, detachable side and test rock mass; Platform base two ends symmetrical expression is fixedly shaped with side direction loaded holders, in order to the loading effect of analog side to tectonic stress formation; Side direction loaded holders is fixedly connected with side direction fixed head, and during the work of side direction loaded holders, side direction fixed head contacts with test rock mass and loads; Test rock mass is fixed on platform base by side direction fixed head by side direction loaded holders; The test same depth level direction of rock mass is uniformly distributed to be shaped with the distribution density of two every meter and is evenly distributed with stress monitoring point, and stress monitoring point adopts ess-strain sheet type sensor, gathers base sheet stresses distribution characteristics; Stress monitoring point is connected with stress acquisition system, the stress-strain data of the automatic collecting test rock mass of stress acquisition system; The upper end fixed installation of test rock mass is shaped with unloading load plate, and unloading load plate both sides distributing installation is shaped with detachable side, and the stress that detachable side transmits in simulation test is the main cause destroying base plate; Hydraulic servo unloading loader is provided with between top-loaded body and unloading load plate, hydraulic servo unloading loader is made up of one group of unloading loader, the quantity of unloading loader is consistent with the quantity of unloading load plate, and firmly connect, release effect to floor undulation after hydraulic servo unloading loader analog operation face coal seam extraction, also in the old dead zone of analog operation face top board, immediate roof emits backwardness again to carry out recovery loading effect to base plate; Top-loaded body top is installed and is shaped with main hydraulic-servo-load device, main hydraulic-servo-load device simulates vertically stress by on-load pressure, the total earnings of test starting stage is loaded, when workplace adopts hydrodynamic pressure servo unloading loader release, main hydraulic-servo-load device still keeps original state, and total pressure is existed always; Main hydraulic-servo-load device is communicated with top fluid pressure line; Loader is unloaded with main hydraulic-servo-load device, hydraulic servo respectively with the hydrostatic control servo-drive system of power control system and side direction loaded holders is connected as whole device power source.
2. mine working face base plate Mining failure simulation test device according to claim 1, it is characterized in that the process of carrying out simulation test to mine working face base plate Mining failure comprises the preparation of test rock mass, mine working face base plate adopts the test of coal seam floor failure simulation test and mine working face is adopted floor failure mechanism and analyzed three steps, specific embodiment is:
(1) preparation of rock mass, is tested: test rock mass has two kinds, for the mine working face floor rock collected when mine working face tunnelling, during preparation, the plane of mine working face floor rock will meet the standard of rock mechanics experiment defined in prior art; Another kind of is the floor undulation prepared with mine working face floor rock similar materials, it prepares material mixture ratio with mine working face floor rock mechanical test parameter for instructing, and rock mechanics parameters comprises tensile strength, compressive strength, shearing strength, cohesion, angle of internal friction, bulk modulus, modulus of shearing, Poisson ratio, size and density; The length of the test rock mass of preparation is 55cm, and wide is 55cm, and height is 20cm, and when test Mining in Rock Mass is with workplace floor rock rock sample, its plane will adopt prior art to carry out formation measurement;
(2), mine working face base plate Mining failure simulation test test: first by side direction fixed head and side direction loaded holders, test rock mass is fixed on platform base, loads lateral stress simultaneously; Again main hydraulic-servo-load device declined with top-loaded body and contact with test rock mass, load perpendicular stress, load time is 1 ~ 2 day, after test rock mass ambient stress is stable, adjustment hydraulic servo unloading loader, open hydraulic servo unloading loader and unload die pressing type, open after the perpendicular stress stress that loading and unloading pressure is identical and reload pattern, in order to simulate the Mining technology condition of the release of seam mining base plate and caving zone rock compaction; Test is carried out in process, opens stress monitoring system, carries out data monitoring and collection; Then utilize outside existing acoustic emission monitoring system, the test rock mass fracture growth in process of the test is monitored; After having tested, outside existing supersonic sounding device is utilized to detect the test rock mass after destruction, the monitoring rock sample cranny development degree of depth and bearing features;
(3) floor failure mechanism analysis is adopted: based on the mechanical property of testing rock mass, existing FLAC-3D software is adopted to carry out Mining failure numerical simulation analysis, base sheet stresses distribution characteristics is adopted in calculating, base plate elastoplasticity subregion is adopted in analysis, and contrasts with the stress data of simulation test collection; Floor failure mechanism is adopted in analysis, and simultaneously to adopting plate destructing depth research, to solve base plate leptophragmata water layer, water-bearing with high pressure adopts a gushing water difficult problem.
CN201410529007.2A 2014-10-10 2014-10-10 Mining failure simulation test device for mine working face floor Expired - Fee Related CN104266913B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410529007.2A CN104266913B (en) 2014-10-10 2014-10-10 Mining failure simulation test device for mine working face floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410529007.2A CN104266913B (en) 2014-10-10 2014-10-10 Mining failure simulation test device for mine working face floor

Publications (2)

Publication Number Publication Date
CN104266913A true CN104266913A (en) 2015-01-07
CN104266913B CN104266913B (en) 2017-02-08

Family

ID=52158454

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410529007.2A Expired - Fee Related CN104266913B (en) 2014-10-10 2014-10-10 Mining failure simulation test device for mine working face floor

Country Status (1)

Country Link
CN (1) CN104266913B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833775A (en) * 2015-05-07 2015-08-12 中国人民解放军理工大学 Three-dimensional model testing apparatus capable of simulating water outburst and mud outburst geological disasters
CN105548506A (en) * 2016-02-04 2016-05-04 河南理工大学 Simulation testing device for testing system for simulating water inrush at coal seam floor under treading influence
CN105738216A (en) * 2016-03-14 2016-07-06 山东大学 System and method for tunnel water-bursting test under high crustal stress-osmotic pressure
CN106596248A (en) * 2016-12-26 2017-04-26 辽宁工程技术大学 Method for determining widths of partition coal pillars at slope based on creep test of coal sample
CN107340229A (en) * 2017-06-22 2017-11-10 中国矿业大学 A kind of experimental provision and method for testing coal and rock dynamics
CN107817317A (en) * 2017-11-06 2018-03-20 四川大学 One kind is by mining influence coal seam bottom water bursting simulation experiment system
WO2019205189A1 (en) * 2018-04-23 2019-10-31 东北大学 Test apparatus and method for key roof block collapse in bidirectional static-dynamic loading
CN110702062A (en) * 2019-09-06 2020-01-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110793672B (en) * 2019-11-13 2021-08-03 晋能控股煤业集团有限公司 Ultra-thick coal seam fully mechanized caving mining device based on bottom plate deformation monitoring system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677494A (en) * 1996-03-05 1997-10-14 Mcdonnell Douglas Corporation Method for high strain-rate testing of specimens
CN101062182A (en) * 2007-05-30 2007-10-31 方阳 Medicine made from root of dahuriae angelica, atractylodes and so on for treating snakebite
CN103018106A (en) * 2012-11-27 2013-04-03 中国矿业大学(北京) Experimental platform capable of simulating confined water load and baseboard breakage relation in controllable manner
CN103018105A (en) * 2012-12-10 2013-04-03 中国矿业大学 Simulation experiment platform of compacting system of solid-filling coal mining solid material
CN203365427U (en) * 2013-06-07 2013-12-25 安徽建筑大学 Visual analog simulation experiment table

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5677494A (en) * 1996-03-05 1997-10-14 Mcdonnell Douglas Corporation Method for high strain-rate testing of specimens
CN101062182A (en) * 2007-05-30 2007-10-31 方阳 Medicine made from root of dahuriae angelica, atractylodes and so on for treating snakebite
CN103018106A (en) * 2012-11-27 2013-04-03 中国矿业大学(北京) Experimental platform capable of simulating confined water load and baseboard breakage relation in controllable manner
CN103018105A (en) * 2012-12-10 2013-04-03 中国矿业大学 Simulation experiment platform of compacting system of solid-filling coal mining solid material
CN203365427U (en) * 2013-06-07 2013-12-25 安徽建筑大学 Visual analog simulation experiment table

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104833775A (en) * 2015-05-07 2015-08-12 中国人民解放军理工大学 Three-dimensional model testing apparatus capable of simulating water outburst and mud outburst geological disasters
CN105548506A (en) * 2016-02-04 2016-05-04 河南理工大学 Simulation testing device for testing system for simulating water inrush at coal seam floor under treading influence
CN105548506B (en) * 2016-02-04 2017-07-14 河南理工大学 Simulate the simulation test device by mining influence coal seam bottom water bursting pilot system
CN105738216A (en) * 2016-03-14 2016-07-06 山东大学 System and method for tunnel water-bursting test under high crustal stress-osmotic pressure
CN105738216B (en) * 2016-03-14 2019-02-05 山东大学 For tunnel gushing water model assay systems and its method under high-ground stress-hypertonic pressure
CN106596248A (en) * 2016-12-26 2017-04-26 辽宁工程技术大学 Method for determining widths of partition coal pillars at slope based on creep test of coal sample
CN106596248B (en) * 2016-12-26 2019-07-30 辽宁工程技术大学 A kind of side slope isolated coal pillar width based on coal sample creep test determines method
CN107340229A (en) * 2017-06-22 2017-11-10 中国矿业大学 A kind of experimental provision and method for testing coal and rock dynamics
CN107817317A (en) * 2017-11-06 2018-03-20 四川大学 One kind is by mining influence coal seam bottom water bursting simulation experiment system
WO2019205189A1 (en) * 2018-04-23 2019-10-31 东北大学 Test apparatus and method for key roof block collapse in bidirectional static-dynamic loading
CN110702062A (en) * 2019-09-06 2020-01-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment
CN110702062B (en) * 2019-09-06 2020-11-17 山东科技大学 Plane movement deformation measurement system and application thereof in two-dimensional analog simulation experiment

Also Published As

Publication number Publication date
CN104266913B (en) 2017-02-08

Similar Documents

Publication Publication Date Title
CN104237024B (en) A kind of mine working face base plate Mining failure simulation experiment method
CN104266913A (en) Mining failure simulation test device for mine working face floor
Li et al. In situ monitoring of rockburst nucleation and evolution in the deeply buried tunnels of Jinping II hydropower station
Lin et al. Experimental study on failure behaviour of deep tunnels under high in-situ stresses
He et al. Deep-hole directional fracturing of thick hard roof for rockburst prevention
Chen et al. An experimental and analytical research on the evolution of mining cracks in deep floor rock mass
Wang et al. Coal mining above a confined aquifer
Gao et al. Discrete element modelling of deformation and damage of a roadway driven along an unstable goaf—a case study
CN102182509B (en) Cut-and-fill three-dimensional simulation test device and method
CN104237025B (en) A kind of closing boring Mining failure simulation experiment method
Huang et al. Experimental investigation of the effect of bedding planes on hydraulic fracturing under true triaxial stress
Xu et al. Mining induced strata movement and roof behavior in underground coal mine
Zhao et al. Microseismicity monitoring and failure mechanism analysis of rock masses with weak interlayer zone in underground intersecting chambers: a case study from the Baihetan Hydropower Station, China
Zhang et al. Enhancement of gas drainage efficiency in a special thick coal seam through hydraulic flushing
CN104653226A (en) Stress-gradient-based method for dividing coal impact ground pressure danger area
Sun et al. Multi-field coupling of water inrush channel formation in a deep mine with a buried fault
Xu et al. Mining-induced movement properties and fissure time-space evolution law in overlying strata
Pan et al. Experimental and numerical study of the water inrush mechanisms of underground tunnels due to the proximity of a water-filled karst cavern
Liu et al. Effect of strata conditions on shield pressure and surface subsidence at a longwall top coal caving working face
Lu et al. Three-dimensional physical model experiment of mining-induced deformation and failure characteristics of roof and floor in deep underground coal seams
Song et al. Analysis of the surface deformation characteristics and strata movement mechanism in the main shaft area of Chengchao Iron Mine
Yang et al. Comprehensive analysis of dynamic instability characteristics of steeply inclined coal-rock mass
Huang et al. Quantification of cracks and the evolution of permeability for reservoir rock under coupled THM: equipment development and experimental research
Liu et al. A case study of collapses at the Yangshan tunnel of the Coal Transportation Channel from the Western Inner Mongolia to the Central China
Zhu et al. Coupled discrete element–finite difference method for analyzing subsidence control in fully mechanized solid backfilling mining

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20161018

Address after: 266590 Qingdao economic and Technological Development Zone, Shandong, former Bay Road, No. 579

Applicant after: Shandong Univ. of Science & Technology

Applicant after: Xi'an University of Science and Technology

Address before: 266590 Qingdao economic and Technological Development Zone, Shandong, former Bay Road, No. 579

Applicant before: Shandong Univ. of Science & Technology

C41 Transfer of patent application or patent right or utility model
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170208

Termination date: 20171010

CF01 Termination of patent right due to non-payment of annual fee