CN106884677B - Tight roof super high seam exploits strong mine pressure prediction pre-control method - Google Patents
Tight roof super high seam exploits strong mine pressure prediction pre-control method Download PDFInfo
- Publication number
- CN106884677B CN106884677B CN201710229110.9A CN201710229110A CN106884677B CN 106884677 B CN106884677 B CN 106884677B CN 201710229110 A CN201710229110 A CN 201710229110A CN 106884677 B CN106884677 B CN 106884677B
- Authority
- CN
- China
- Prior art keywords
- working face
- mine pressure
- strong
- cover
- face
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000003245 coal Substances 0.000 claims abstract description 59
- 238000005065 mining Methods 0.000 claims abstract description 12
- 239000011435 rock Substances 0.000 claims description 40
- 238000004088 simulation Methods 0.000 claims description 17
- 230000009467 reduction Effects 0.000 claims description 10
- 238000005728 strengthening Methods 0.000 claims description 10
- 238000004321 preservation Methods 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000011017 operating method Methods 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000012821 model calculation Methods 0.000 claims description 2
- 239000002352 surface water Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 101100460702 Aspergillus sp. (strain MF297-2) notH gene Proteins 0.000 description 1
- 201000004569 Blindness Diseases 0.000 description 1
- 101100391181 Dictyostelium discoideum forH gene Proteins 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to coal mining mine pressure prediction pre-control methods, specially tight roof super high seam exploits strong mine pressure prediction pre-control method, it solves the problems, such as to lack at present tight roof super high seam and exploits strong mine pressure prediction pre-control method, step are as follows: one, establish functional relation:f(L)、f(M)、f(D)、f(H)、f(L p )、f(H p )；Two, regression model is establishedσ=a*f(L)+b*f(M)+c*f(D)+e*f(H)+g*f(L p )+h*f(H p )+k；Three, functional relation calculated result regression model is substituted into calculatea、b、c、e、g、h、kValue, determine regression model expression formula；Four, appoint and take a working face, determine L,M、D、H、 L p 、H p , substitute into regression model and calculateσ；Five and primitive stressσ 0Comparison, prediction mine pressure show grade；Six, corresponding supporting control method is taken.Advantage: 1, cover the principal element for influencing mine pressure；2, forecasting accuracy is high；3, prediction model is flexibly practical；4, guarantee the safety and high efficiency of working face.
Description
Technical field
The present invention relates to coal mining mine pressure prediction pre-control method, it is pre- to exploit strong mine pressure for specially tight roof super high seam
Survey pre-control method.
Background technique
After coal bed underground exploitation, the fracture unstable motion of overlying rock will certainly be caused, to cause work to a certain degree
The mine pressure in face shows.Thin and medium seam is exploited, because working face mining thickness is little, extraction space is small, and overlying strata migration collapses
It is smaller to fall unstable sphere, Face Ground Pressure Behavior degree is not strong.And China's super high seam rich reserves, it is that China's Underground well is high
Is produced from efficient main body coal seam, at present high working face is all made of for the exploitation of super high seam mostly and once adopts full-seam extraction, this just makes
After exploiting at super high seam, extraction space is big, and overlying strata migration area is wide, and overlying rock fracture, unstability, stress distribution are complicated, especially
It is under the conditions of overlying strata are tight roof, and because the breaking span of tight roof is big, fracture rule is increasingly complex, to exacerbate heavily fortified point
The mine pressure for resisting working face under plate super high seam mining conditions stubbornly shows degree, brings centainly to stope strong mine pressure and CONTROL OF STRATA MOVEMENT
Challenge.Meanwhile because underground multiple seam preservation phenomenon is commonplace, in goaf, preservation leaves coal column after upper seam mining
When, stress concentration phenomenon is generated at coal column because leaving, and can also be aggravated the lower mine pressure for assigning seam mining working face and be shown degree.Thus
The mines pressures such as caused force piece kills, roadway damage show strongly, especially leave coal column when possessing goaf on working face
When, Face Ground Pressure Behavior is extremely violent, seriously affects the safety in production of working face.
The strong mine pressure Displaying Mechanism and feature and bump of working face have an essential distinction, core be exploitation disturbance,
Rock stratum is broken caused by unstability.Method due to lacking mine pressure prediction at present, work when underground tight roof super high seam is exploited
The supporting for making face and tunnel has certain blindness.According to the supporting of inferior grade, then it will lead to underground mining safety coefficient
It reduces；If using high-grade safety support without exception, it will lead to production cost and greatly improve, and influence manufacturing schedule.
It is predicted it can be seen that studying one kind and can be exploited before strong mine pressure shows in tight roof super high seam, from
And working face control measure make corresponding adjustment with manufacturing schedule when Instructing manufacture, reasonable arrangement supporting grade guarantees work
The tight roof super high seam of the safe and efficient production in face exploit strong mine pressure prediction pre-control method be very it is necessary to.
Summary of the invention
The present invention solves the problems, such as that lacking tight roof super high seam at present exploits strong mine pressure prediction pre-control method, provides one
Kind tight roof super high seam exploits strong mine pressure prediction pre-control method.
The present invention is realized by following operating procedure: tight roof super high seam the mining pressure forecasting and control in advance method,
Including following operating procedure:
One, numerical simulator is established with FLAC simulation softward, and is fitted to obtain working face based on the model calculation
Locate surrouding rock stressσThick M is adopted with face length L, working face coal seam respectively, covers most thick competent bed thickness D, work on working face
Covered on face most thick competent bed away from working face distance H, on cover and leave coal pillar width Lp, on cover and leave coal column away from working face distance Hp
Functional relationf(L)、f(M)、f(D)、f(H)、f(Lp)、f(Hp)；
Two, based on surrouding rock stress at the resulting working face of step 1σFunctional relationσ=f (L)、σ=f (M)、σ=f
(D)、σ=f (H)、σ=f (L p )、σ=f (H p ), surrouding rock stress at working face is established with SPSS simulation softwardσWithL、M、D、H、 L p 、H p Relevant regression model:σ=a*f (L)+b*f (M)+c*f (D)+e* f (H)+g*f (L p )+h*f (H p )+K,Formula
Ina、b、c、e、g、h、kIt is constant；
Three, using SPSS simulation softward, the calculated result of the numerical simulator in step 1 is substituted into returning for step 2
Return in model and calculated, is obtaineda、b、c、e、g、h、kValue, so that it is determined that surrouding rock stress at working faceσWithL、M、D、H、L p 、 H p Regression model expression formula；
Four, appoint and take a tight roof super high seam exploitation working face, determine face lengthL, working face coal seam adopt thicknessM, cover most thick competent bed thickness on working faceD, cover most thick competent bed away from working face distance on working faceH、On cover and leave coal
Column widthL p , on cover and leave coal column away from working face distanceH p , substitute into regression model and surrouding rock stress at working face be calculatedσ；If
It covers to be not present on working face and leaves coal column, then in regression modelg、hValue is 0；
Five, by surrouding rock stress at the working face being calculatedσWith primitive stress at working faceσ 0It compares, whenσ=(1 ~
1.5)σ 0, then mine pressure show grade be it is general, whenσ=(1.5 ~ 2.0)σ 0, then mine pressure show grade be it is stronger, whenσ=(2.0 ~
3.0)σ 0, then mine pressure show grade be it is strong, whenσ≥3.0 σ 0, then it is extremely strong strong that mine pressure, which shows grade,；
Six, prediction mine pressure shows grade when being general, by using conventional hydraulic single prop branch within the scope of tunnel
Shield, bolting and rope support to country rock carry out supporting, prediction mine pressure show grade be it is stronger when, arranged within the scope of tunnel high-strength
Degree and the hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being strong, pass through underground
Pressure break reduction is carried out to low level competent bed is covered on coal seam using the method for hydraulic fracturing, while being arranged within the scope of tunnel high-strength
Degree and the hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being extremely strong strong, by
Underground carries out pressure break reduction to low level competent bed is covered on coal seam using the method for hydraulic fracturing, while in well upper ground surface using ground
Face hydraulic fracturing carries out pressure break reduction to high-order competent bed, and high-intensitive and density hydraulic monomer is arranged within the scope of tunnel
Pillar, anchor shaft anchor cable carry out strengthening supporting；When causing Face Ground Pressure Behavior strong or pole because preservation leaves coal column in overlying strata
When strong, at the same by the way of hydrofracturing to leave coal column or more competent bed carry out pressure break.
Analysis is being calculated with FLAC simulation softward and is fitted to obtain surrouding rock stress at working faceσRespectively with face length
L, working face coal seam adopts thick M, most thick competent bed thickness D is covered on working face, covers most thick competent bed away from working face on working face
Distance H, on cover and leave coal pillar width Lp, on cover and leave coal column away from working face distance HpFunctional relationf(L)、f(M)、f(D)、f(H)、f(Lp)、f(Hp) when, L, M, D, H, L is set separatelyp、HpFor variable, remaining parameter is constant, and one change of setting every time
Amount, the value number of variable are no less than 4.
The invention has the following advantages that 1, cover under tight roof super high seam mining conditions the influence strong mine pressure of working face
The principal element shown ensure that the comprehensive of prediction model；2, Numerical modelling data are primarily based on to be fitted to obtain each shadow
The functional relation of factor and working face surrouding rock stress is rung, regression model is then established based on functional relation, can effectively be mentioned
The regression coefficient of high regression model guarantees the accuracy of prediction model；3, the numerical simulator established can be according to be predicted
The variation of the geological conditions of working face and change, ensure that flexibility and the practicability of prediction model；4, shown according to strong mine pressure
Grade forecast as a result, in advance using roadway surrounding rock strengthening supporting, on cover the raw measure of the strong mine pressure of pre-controls such as competent bed reduction,
The safety and high efficiency for advantageously ensuring that working face, has a extensive future.
Detailed description of the invention
Fig. 1 is operation of the present invention flow diagram.
Specific embodiment
Tight roof super high seam the mining pressure forecasting and control in advance method, including following operating procedure:
One, 1) four numerical simulators, with FLAC simulation softward are established, face length is takenLRespectivelyL 1 、L 2 、 L 3 、L 4 , stationary face adopts thickness and isM 3 、Covered on working face most thick competent bed with a thickness ofD 3 、Most thick competent bed is covered on working face
It is away from working face distanceH 3 、On cover and leave coal pillar width and beL p3 、On cover and leave coal column away from working face distance and beH p3 , simulate and calculate
Surrouding rock stress at working face when to different operating face lengthσ, it is fitted to obtain surrouding rock stress at working face based on analogue dataσWith work
Make face lengthLRelational expression:σ=f (L)；
2) 4 numerical simulators, are established with FLAC simulation softward, working face coal seam is taken to adopt thicknessMRespectivelyM 1 、M 2 、 M 3 、M 4 , stationary face length isL 3 、Covered on working face most thick competent bed with a thickness ofD 3 、Most thick competent bed is covered on working face
It is away from working face distanceH 3 、On cover and leave coal pillar width and beL p3 、On cover and leave coal column away from working face distance and beH p3 , simulate and calculate
Surrouding rock stress at working face when adopting thickness to different operating face coal seamσ, it is fitted to obtain surrouding rock stress at working face based on analogue dataσ
Thickness is adopted with working face coal seamMRelational expression:σ=f (M)；
3) 4 numerical simulators, are established with FLAC simulation softward, takes and covers most thick competent bed thickness on working faceD
RespectivelyD 1 、D 2 、D 3 、D 4 , stationary face length isL 3 、Working face adopts thicknessM 3 、Most thick competent bed is covered on working face away from work
Make identity distance from forH 3 、On cover and leave coal pillar width and beL p3 、On cover and leave coal column away from working face distance and beH p3 , simulate and be calculated not
With surrouding rock stress at working face when covering most thick competent bed thickness on working faceσ, it is fitted to obtain at working face based on analogue data
Surrouding rock stressσWith most thick competent bed thickness is covered on working faceDRelational expression:σ=f (D)；
4) 4 numerical simulators, are established with FLAC simulation softward, takes and covers most thick competent bed on working face away from work
Identity distance fromHRespectivelyH 1 、H 2 、H 3 、H 4 , stationary face length isL 3 、Working face adopts thicknessM 3 、Most thick hard rock is covered on working face
Layer with a thickness ofD 3 、On cover and leave coal pillar width and beL p3 、On cover and leave coal column away from working face distance and beH p3 , simulate and difference be calculated
Covered on working face most thick competent bed away from working face apart from when working face at surrouding rock stressσ, it is fitted to obtain work based on analogue data
Make surrouding rock stress at faceσWith most thick competent bed is covered on working face away from working face distanceHRelational expression:σ=f (H)；
5) 4 numerical simulators, are established with FLAC simulation softward, takes to cover and leaves coal pillar widthL p RespectivelyL p1 、 L p2 、L p3 、L p4 , stationary face length isL 3 、Working face adopts thicknessM 3 、Covered on working face most thick competent bed with a thickness ofD 3 、Work
Make to cover most thick competent bed on face away from working face distance beH 3 、On cover and leave coal column away from working face distance and beH p3 , simulate and calculate
To not ibid cover leave coal pillar width when working face at surrouding rock stressσ, it is fitted to obtain country rock at working face based on analogue data and answers
PowerσCoal pillar width is left with above coveringL p Relational expression:σ=f (L p )；
6) 4 numerical simulators, are established with FLAC simulation softward, takes to cover and leaves coal column away from working face distanceH p Point
It is notH p1 、H p2 、H p3 、H p4 , stationary face length isL 3 、Working face adopts thicknessM 3 、Most thick competent bed thickness is covered on working face
ForD 3 、Most thick competent bed is covered on working face away from working face distance isH 3 、On cover and leave coal pillar width and beL p3 , simulation is calculated
Ibid do not cover leave coal column away from working face apart from when working face at surrouding rock stressσ, it is fitted to obtain at working face based on analogue data
Surrouding rock stressσCoal column is left away from working face distance with above coveringH p Relational expression:σ=f (H p )；
Two, based on surrouding rock stress at the resulting working face of step 1σFunctional relationσ=f (L)、σ=f (M)、σ=f
(D)、σ=f (H)、σ=f (L p )、σ=f (H p ), surrouding rock stress at working face is established with SPSS simulation softwardσWithL、M、D、H、 L p 、H p Relevant regression model:σ=a*f (L)+b*f (M)+c*f (D)+e* f (H)+g*f (L p )+h*f (H p )+K,Formula
Ina、b、c、e、g、h、kIt is constant；
Three, using SPSS simulation softward, the calculated result of 24 numerical simulators in step 1 is substituted into step 2
Regression model in calculated, obtaina、b、c、e、g、h、kValue, so that it is determined that surrouding rock stress at working faceσWithL、M、D、 H、L p 、H p Regression model expression formula；
Four, appoint and take a tight roof super high seam exploitation working face, determine face lengthL, working face coal seam adopt thicknessM, cover most thick competent bed thickness on working faceD, cover most thick competent bed away from working face distance on working faceH、On cover and leave coal
Column widthL p , on cover and leave coal column away from working face distanceH p , substitute into regression model and surrouding rock stress at working face be calculatedσ；If
It covers to be not present on working face and leaves coal column, then in regression modelg、hValue is 0；
Five, by surrouding rock stress at the working face being calculatedσWith primitive stress at working faceσ 0It compares, whenσ=(1 ~
1.5)σ 0, then mine pressure show grade be it is general, whenσ=(1.5 ~ 2.0)σ 0, then mine pressure show grade be it is stronger, whenσ=(2.0 ~
3.0)σ 0, then mine pressure show grade be it is strong, whenσ≥3.0 σ 0, then it is extremely strong strong that mine pressure, which shows grade,；
Six, prediction mine pressure shows grade when being general, by using conventional hydraulic single prop branch within the scope of tunnel
Shield, bolting and rope support to country rock carry out supporting, prediction mine pressure show grade be it is stronger when, arranged within the scope of tunnel high-strength
Degree and the hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being strong, pass through underground
Pressure break reduction is carried out to low level competent bed is covered on coal seam using the method for hydraulic fracturing, while being arranged within the scope of tunnel high-strength
Degree and the hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being extremely strong strong, by
Underground carries out pressure break reduction to low level competent bed is covered on coal seam using the method for hydraulic fracturing, while in well upper ground surface using ground
Face hydraulic fracturing carries out pressure break reduction to high-order competent bed, and high-intensitive and density hydraulic monomer is arranged within the scope of tunnel
Pillar, anchor shaft anchor cable carry out strengthening supporting；When causing Face Ground Pressure Behavior strong or pole because preservation leaves coal column in overlying strata
When strong, at the same by the way of hydrofracturing to leave coal column or more competent bed carry out pressure break.
Claims (2)
1. a kind of tight roof super high seam the mining pressure forecasting and control in advance method, it is characterised in that: including following operating procedure:
One, numerical simulator is established with FLAC simulation softward, and is fitted to obtain at working face based on the model calculation and encloses
Rock stressσThick M is adopted with face length L, working face coal seam respectively, covers most thick competent bed thickness D on working face, on working face
Cover most thick competent bed away from working face distance H, on cover and leave coal pillar width Lp, on cover and leave coal column away from working face distance HpLetter
Number relational expressionf(L)、f(M)、f(D)、f(H)、f(Lp)、f(Hp)；
Two, based on surrouding rock stress at the resulting working face of step 1σFunctional relationσ=f (L)、σ=f (M)、σ=f (D)、σ =f (H)、σ=f (L p )、σ=f (H p ), surrouding rock stress at working face is established with SPSS simulation softwardσWithL、M、D、H、L p 、H p
Relevant regression model:σ=a*f (L)+b*f (M)+c*f (D)+e* f (H)+g*f (L p )+h*f (H p )+K,In formulaa、b、 c、e、g、h、kIt is constant；
Three, using SPSS simulation softward, the calculated result of the numerical simulator in step 1 is substituted into the recurrence mould of step 2
It is calculated, is obtained in typea、b、c、e、g、h、kValue, so that it is determined that surrouding rock stress at working faceσWithL、M、D、H、L p 、H p 's
Regression model expression formula；
Four, appoint and take a tight roof super high seam exploitation working face, determine face lengthL, working face coal seam adopt thicknessM, work
Make to cover most thick competent bed thickness on faceD, cover most thick competent bed away from working face distance on working faceH、On cover that leave coal column wide
DegreeL p , on cover and leave coal column away from working face distanceH p , substitute into regression model and surrouding rock stress at working face be calculatedσ；If work
It covers to be not present on face and leaves coal column, then in regression modelg、hValue is 0；
Five, by surrouding rock stress at the working face being calculatedσWith primitive stress at working faceσ 0It compares, whenσ=(1 ~ 1.5)σ 0, then mine pressure show grade be it is general, whenσ=(1.5 ~ 2.0)σ 0, then mine pressure show grade be it is stronger, whenσ=(2.0 ~ 3.0)σ 0, then mine pressure show grade be it is strong, whenσ≥3.0 σ 0, then it is extremely strong strong that mine pressure, which shows grade,；
Six, prediction mine pressure shows grade when being general, by using conventional hydraulic single prop supporting, anchor within the scope of tunnel
Bar cable bolting carries out supporting to country rock, and prediction mine pressure shows grade when being stronger, arranged within the scope of tunnel it is high-intensitive and
The hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being strong, are used by underground
The method of hydraulic fracturing carries out pressure break reduction to low level competent bed is covered on coal seam, at the same arrange within the scope of tunnel it is high-intensitive and
The hydraulic single prop of density, anchor shaft anchor cable carry out strengthening supporting, and prediction mine pressure shows grade when being extremely strong strong, by underground
Pressure break reduction is carried out to low level competent bed is covered on coal seam using the method for hydraulic fracturing, while using the surface water in well upper ground surface
It forces to split and pressure break reduction is carried out to high-order competent bed, and arrange high-intensitive and density hydraulic monomer branch within the scope of tunnel
Column, anchor shaft anchor cable carry out strengthening supporting；When causing Face Ground Pressure Behavior strong or extremely strong because preservation leaves coal column in overlying strata
When strong, at the same by the way of hydrofracturing to leave coal column or more competent bed carry out pressure break.
2. tight roof super high seam the mining pressure forecasting and control in advance method according to claim 1, it is characterised in that: described
Step 1 is calculating analysis with FLAC simulation softward and is being fitted to obtain surrouding rock stress at working faceσRespectively with L, M, D, H, Lp、Hp
Functional relationf(L)、f(M)、f(D)、f(H)、f(Lp)、f(Hp) when, L, M, D, H, L is set separatelyp、HpFor variable, remaining
Parameter is constant, and one variable of setting, the value number of variable are no less than 4 every time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229110.9A CN106884677B (en) | 2017-04-10 | 2017-04-10 | Tight roof super high seam exploits strong mine pressure prediction pre-control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229110.9A CN106884677B (en) | 2017-04-10 | 2017-04-10 | Tight roof super high seam exploits strong mine pressure prediction pre-control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106884677A CN106884677A (en) | 2017-06-23 |
| CN106884677B true CN106884677B (en) | 2019-03-15 |
Family
ID=59182795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229110.9A Active CN106884677B (en) | 2017-04-10 | 2017-04-10 | Tight roof super high seam exploits strong mine pressure prediction pre-control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106884677B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398333A (en) * | 2018-04-12 | 2018-08-14 | 河南理工大学 | The prediction technique of adjacent air space coal roadway rock sound load is adopted under a kind of tight roof |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107942380A (en) * | 2017-10-23 | 2018-04-20 | 太原理工大学 | A kind of numerical simulation method for considering caving zone goaf |
| CN109146142B (en) * | 2018-07-25 | 2020-08-11 | 中国矿业大学 | Prediction method of stoping roadway mine pressure display data |
| CN109855966B (en) * | 2019-01-23 | 2021-04-13 | 太原理工大学 | Method for selecting coal mine ground fracturing hard roof layer position |
| CN109886550B (en) * | 2019-01-23 | 2023-05-12 | 太原理工大学 | Comprehensive evaluation method for controlling strong mine fracturing effect of coal mine ground fracturing hard top plate |
| CN109918715A (en) * | 2019-01-24 | 2019-06-21 | 太原理工大学 | A kind of coal mine ground vertical well pressure break tight roof position choosing method |
| CN109798149B (en) * | 2019-01-28 | 2020-06-09 | 辽宁工程技术大学 | Method for predicting inflow intensity of mining field of thick coal seam with hard roof in grading manner |
| CN111103187B (en) * | 2019-12-04 | 2022-04-19 | 太原理工大学 | Method for predicting breaking impact strength of key layers at different layers |
| CN111027687B (en) * | 2019-12-29 | 2023-01-10 | 鄂尔多斯市伊化矿业资源有限责任公司 | Mining pressure prediction treatment method and system during stoping period of coal mine working face |
| CN111598355B (en) * | 2020-05-29 | 2023-11-21 | 煤炭科学技术研究院有限公司 | Hierarchical prediction method for ore pressure of multi-layer hard rock stratum |
| CN113338931A (en) * | 2021-06-08 | 2021-09-03 | 太原理工大学 | Method for controlling strong mine pressure of stope by ground pre-splitting high-position inclined coal pillar structure |
| CN113847083B (en) * | 2021-10-28 | 2024-03-01 | 重庆大学 | Control method for rock burst of high-level huge-thickness hard top plate area |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2265652B (en) * | 1992-04-04 | 1995-08-02 | Meco Electronics Ltd | Mine communication system |
| CN101806229B (en) * | 2010-03-15 | 2013-06-19 | 山东科技大学 | Mine roof safety evaluation method based on multi-target monitoring data fusion |
| CN106121721B (en) * | 2016-07-22 | 2018-01-30 | 辽宁工程技术大学 | A kind of tight roof Face Ground Pressure Behavior stage division |
| CN106251057A (en) * | 2016-07-27 | 2016-12-21 | 陕西煤业化工技术研究院有限责任公司 | A kind of bump danger overall evaluation system |
-
2017
- 2017-04-10 CN CN201710229110.9A patent/CN106884677B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108398333A (en) * | 2018-04-12 | 2018-08-14 | 河南理工大学 | The prediction technique of adjacent air space coal roadway rock sound load is adopted under a kind of tight roof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106884677A (en) | 2017-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106884677B (en) | Tight roof super high seam exploits strong mine pressure prediction pre-control method | |
| CN106285782B (en) | A kind of bump method for early warning under complicated geological environmental effect and system | |
| CN107748103A (en) | A kind of tunnel Rockburst Prediction Method, equipment, storage medium and system | |
| CN104408323A (en) | Method for advanced forecasting of roof separation water disaster of stope based on multi-source information fusion | |
| CN106246141B (en) | Drilling hole quantitative partition arrangement optimization method based on coal mine gas extraction yield prediction | |
| Li et al. | On prevention and mechanism of bed separation water inrush for thick coal seams: a case study in China | |
| Šňupárek et al. | Stability of roadways in coalmines alias rock mechanics in practice | |
| Peng et al. | Underground ground control monitoring and interpretation, and numerical modeling, and shield capacity design | |
| CN112948924B (en) | Method for determining height of near-unconsolidated formation mining water-guiding fracture zone based on overburden structure | |
| CN109681180A (en) | Coal mine ground vertical well pressure break tight roof controls the strong mine of stope and presses effect pre-evaluation method | |
| Xufeng et al. | Underground pressure characteristics analysis in back-gully mining of shallow coal seam under a bedrock gully slope | |
| CN107145684B (en) | Underground rock mass engineering ground pressure management and control method | |
| CN110851991B (en) | Underground water flow numerical simulation method | |
| Zhang et al. | Strata movement and stress evolution when mining two overlapping panels affected by hard stratum | |
| Liu et al. | A prediction model and numerical simulation of the location of the longwall face during the highest possible failure period of gob gas ventholes | |
| CN102777179B (en) | Method for controlling mine power capacity source by using region power planning | |
| Zhu et al. | Study of the stability control of the rock surrounding double‐key strata recovery roadways in shallow seams | |
| Zhang et al. | Disaster-causing mechanism of extremely thick igneous rock induced by mining and prevention method by backfill mining | |
| CN108150171A (en) | A kind of great burying thin bedrock area high seam longwall top coal caving pressure rack water-inrush prevention method | |
| Lai et al. | Research of the Backfill Body Compaction Ratio Based on Upward Backfill Safety Mining of the Close‐Distance Coal Seam Group | |
| Dakuang | On concepts, strategies and techniques to the secondary development of China's high water-cut oilfields | |
| Zhou et al. | Impact of thick alluvial soil on a fractured water-conducting zone: an example from Huainan coal mine, China | |
| Gale | Rock fracture, caving and interaction of face supports under different geological environments: experience from Australian coal mines | |
| Salkynov et al. | Research into deformation processes in the rock mass surrounding the stoping face when mining sloping ore deposits. | |
| Zhang et al. | Influence of depth-thickness ratio of mining on the stability of a bedding slope with its sliding surface in concave deformation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |