CN105466390A - Method for monitoring early subsidence of roof during fully-mechanized solid filling and coal mining - Google Patents
Method for monitoring early subsidence of roof during fully-mechanized solid filling and coal mining Download PDFInfo
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- CN105466390A CN105466390A CN201510864579.0A CN201510864579A CN105466390A CN 105466390 A CN105466390 A CN 105466390A CN 201510864579 A CN201510864579 A CN 201510864579A CN 105466390 A CN105466390 A CN 105466390A
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- coal mining
- hydraulic support
- filling
- filling coal
- mining hydraulic
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- 239000003245 coal Substances 0.000 title claims abstract description 86
- 238000005065 mining Methods 0.000 title claims abstract description 85
- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000007787 solid Substances 0.000 title claims abstract description 17
- 125000000174 L-prolyl group Chemical group [H]N1C([H])([H])C([H])([H])C([H])([H])[C@@]1([H])C(*)=O 0.000 claims abstract description 7
- 238000004088 simulation Methods 0.000 claims abstract description 7
- 239000011343 solid material Substances 0.000 claims description 12
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C9/00—Measuring inclination, e.g. by clinometers, by levels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention discloses a method for monitoring early subsidence of a roof during fully-mechanized solid filling and coal mining and is suitable for monitoring early subsidence of a roof on a working surface in a fully-mechanized solid filling and coal mining technique for well mining. The method comprises steps as follows: a solid simulation model is established through Pro/Engineer software on the basis of size parameters and geometrical relation of structures of a filling and coal mining hydraulic support, and the early subsidence of the roof on the work surface during fully-mechanize solid filling and coal mining is acquired according to the change of an oblique angle, measured during filling and coal mining cyclic operation, of a rear stand column of the filling and coal mining hydraulic support. The method is reasonable in design, low in cost and simple and easy to implement and has high pertinence and wide practicability.
Description
Technical field
The present invention relates to a kind of comprehensive mechanization solid filling coal mining top board and shift to an earlier date deflection monitoring method, be particularly useful for the monitoring of the amount of crushing in the coal mining of well industrial and mineral comprehensive mechanization solid filling.
Background technology
In comprehensive mechanization filling coal mining technology, the dynamic change of top board is the basic data that must grasp.After solid material is filled with goaf, along with the propelling of workplace, grasp top board current intelligence in time, be both conducive to analyzing the strata-pressure behavior grasped solid filling and mine, be conducive to again the implementation status and the reaction filling effect that detect filling process, to ensure the good management of obturation to top board.Therefore, the top board working out a kind of accurate practicality shifts to an earlier date deflection monitoring method for ensureing that solid filling coal-mining technique is significant at the filling effect at colliery engineering scene.
Summary of the invention
Technical matters: the top board that the object of this invention is to provide under a kind of comprehensive mechanization solid filling coal-mining technique condition shifts to an earlier date the monitoring method of deflection.
Technical scheme: comprehensive mechanization solid filling coal mining top board of the present invention shifts to an earlier date deflection monitoring method;
(1) according to the dimensional parameters of filling coal mining hydraulic support three-dimensional entity model and each portion structure of model, utilize Pro/Engineer software to set up entity simulation model, obtain filling coal mining hydraulic support rear column inclination angle-bearing height curve;
(2) in conventional filling coal mining cycle operation, carry out the coal cutting of filling coal mining workplace, pass scraper conveyor, pass filling coal mining hydraulic support, the operation of filling solid material, complete a cycle operation, when after the end of job of filling solid material, measure filling coal mining hydraulic support rear column inclination alpha this moment
1;
(3) start second cycle operation, after second cycle operation proceeds to pass the end of job of filling coal mining hydraulic support, before the operation of filling solid material starts, again measure filling coal mining hydraulic support rear column inclination alpha this moment
2;
(4) on the basis at the filling coal mining hydraulic support rear column inclination angle of to monitor out for twice, draw filling coal mining hydraulic support rear column inclination angle-bearing height curve according to the entity simulation model that Pro/Engineer software is set up, obtain bearing height difference Δ l during twice monitoring filling coal mining hydraulic support rear column inclination angle;
(5) filling coal mining hydraulic support is simplified to geometric figure, and the filling coal mining hydraulic support of two positions is piled up, and the rear back timber of the filling coal mining hydraulic support in two periods and the top board triangle that the section of sinking is formed by connecting in advance are processed as similar triangles, namely idealizedly
thus the top board at the breakpoint place of back timber shifts to an earlier date deflection after obtaining filling coal mining hydraulic support, namely
Beneficial effect: owing to have employed such scheme, solid filling coal mining top board of the present invention shifts to an earlier date deflection monitoring method, only need to measure in each filling coal mining work cycle the inclination angle of the filling coal mining hydraulic support rear column after passing liquid filling coal mining hydraulic support when practice, just can obtain solid filling coal mining top board according to entity simulation model and the geometric relationship between filling coal mining hydraulic support each parameters of structural dimension and structure and shift to an earlier date deflection.This top board shifts to an earlier date that deflection monitoring method is simple, and cost is low, has practical widely.
Accompanying drawing explanation
Fig. 1 is four-column type filling coal mining hydraulic support three-dimensional entity model figure in the specific embodiment of the invention;
Fig. 2 is four-column type filling coal mining hydraulic support two-dimensional framework illustraton of model in the specific embodiment of the invention;
Fig. 3 is four-column type filling coal mining hydraulic support rear column inclination angle-bearing height curve map in the specific embodiment of the invention;
Fig. 4 is the present invention's workplace side view of the state after the operation of filling solid material in first cycle operation when starting to monitor;
Fig. 5 is the present invention's filling solid material operation leading face side view of the state in second cycle operation when starting to monitor;
Fig. 6 is the present invention's filling coal mining hydraulic support overlap condition reduced graph in two cycle operations when monitoring.
In figure: back timber before 1-filling coal mining hydraulic support, back timber after 2-filling coal mining hydraulic support, 3-filling coal mining hydraulic support rear column, 4-porous bottom-dump conveyor, back timber end points place top board after 5-filling coal mining hydraulic support, 6-scraper conveyor, 7-filling coal mining hydraulic support, 8-filling coal mining hydraulic support foundation, 9-solid filling material, 10-entity rib.
Embodiment
Below in conjunction with the embodiment in accompanying drawing, the invention will be further described:
For ZC5200/20/38 type four-column type filling coal mining hydraulic support, deflection monitoring method is shifted to an earlier date to solid filling coal mining top board of the present invention and is described in detail:
(1) first package is put by prior art at coal-face entity coal wall cloth, according to filling coal mining hydraulic support three-dimensional entity model, as shown in Figure 1, and the dimensional parameters of each structure, utilize Pro/Engineer software foundation two-dimensional framework model as shown in Figure 2, finally obtain filling coal mining hydraulic support rear column 3 inclination angles-bearing height curve as shown in Figure 3;
(2) in the conventional filling coal mining cycle operation of prior art, adopt and pass scraper conveyor 6, passing filling coal mining hydraulic support 7 carries out the coal cutting of filling coal mining workplace, filling solid material 9 carries out filling, complete a cycle operation, as shown in Figure 4, after filling solid material 9 placement operation terminates, measure the inclination alpha of filling coal mining hydraulic support rear column 3 this moment
1it is 80.52 °, according to α
1value, curve as shown in Figure 3 can obtain, and bearing height is this moment 3200mm.
(3) after completing a filling coal mining cycle operation, start second filling coal mining cycle operation, when in second cycle operation, after filling coal mining hydraulic support 7 forward step pitch 600mm, before filling solid material 9 placement operation starts, position as shown in Figure 5, measures the inclination alpha of filling coal mining hydraulic support rear column 3 this moment again
2it is 79.59 °, according to α
2value, curve as shown in Figure 3 can obtain, and now bearing height is 3000mm;
(4) on the basis that twice is measured filling coal mining hydraulic support rear column 3 inclination angle, according to filling coal mining hydraulic support rear column 3 inclination angles-bearing height curve that the entity simulation model of Pro/Engineer software foundation draws, obtain bearing height difference Δ l during twice monitoring filling coal mining hydraulic support rear column inclination angle;
(5) the filling coal mining hydraulic support 7 of two positions is piled up, wherein l
2section is the distance 600mm that filling coal mining hydraulic support 7 passes a step pitch, and as shown in Figure 6, the triangle that the filling coal mining hydraulic support 7 that can be piled up two is formed idealizedly processes as similar triangles, that is,
therefore, after filling coal mining hydraulic support, the top board at the end points place of back timber 2 shifts to an earlier date deflection S
dcan be calculated as follows and draw:
In formula:
S
dafter-filling coal mining hydraulic support, the top board at the end points place of back timber shifts to an earlier date deflection, mm;
The bearing height during inclination angle of Δ l-twice monitoring filling coal mining hydraulic support rear column is poor, 200mm;
L
1the length of back timber after-filling coal mining hydraulic support, 4462mm;
L
2the step pitch distance an of-passing filling coal mining hydraulic support, 600mm;
L
3the pin joint of-rear back timber and four-bar mechanism to the horizontal range of rear back timber and rear column pin joint, 1550mm.
Claims (1)
1. comprehensive mechanization solid filling coal mining top board shifts to an earlier date a deflection monitoring method, it is characterized in that comprising the steps:
(1) according to the dimensional parameters of filling coal mining hydraulic support three-dimensional entity model and each portion structure of model, utilize Pro/Engineer software to set up entity simulation model, obtain filling coal mining hydraulic support rear column (3) inclination angle-bearing height curve;
(2) in the filling coal mining cycle operation of routine, carry out the coal cutting of filling coal mining workplace, pass scraper conveyor (6), pass filling coal mining hydraulic support (7), filling solid material (9) operation, complete a cycle operation, when after filling solid material (9) end of job, measure filling coal mining hydraulic support rear column (3) inclination alpha this moment
1;
(3) second cycle operation is started, after second cycle operation proceeds to pass filling coal mining hydraulic support (7) end of job, before filling solid material (9) operation starts, again measure filling coal mining hydraulic support rear column (3) inclination alpha this moment
2;
(4) on the basis at filling coal mining hydraulic support rear column (3) inclination angle that twice cycle operation is monitored out, draw filling coal mining hydraulic support rear column (3) inclination angle-bearing height curve according to the entity simulation model that Pro/Engineer software is set up, obtain bearing height difference Δ l during twice monitoring filling coal mining hydraulic support rear column inclination angle;
(5) filling coal mining hydraulic support is simplified to geometric figure, and the filling coal mining hydraulic support (7) of two positions is piled up, and the rear back timber of the filling coal mining hydraulic support in two periods and the top board triangle that the section of sinking is formed by connecting in advance are processed as similar triangles, namely idealizedly
thus the top board at the breakpoint place of back timber shifts to an earlier date deflection after obtaining filling coal mining hydraulic support, namely
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864579.0A CN105466390B (en) | 2015-12-01 | 2015-12-01 | Comprehensive mechanization solid filling coal mining top plate sinks quantity monitoring method in advance |
| PCT/CN2016/106334 WO2017092577A1 (en) | 2015-12-01 | 2016-11-18 | Method for monitoring pre-backfilling roof subsidence for use in fully mechanized solid-backfilling coal mining |
| CA2986142A CA2986142C (en) | 2015-12-01 | 2016-11-18 | Method for monitoring early subsidence of roof during fully-mechanized solid filling mining |
| AU2016364117A AU2016364117B2 (en) | 2015-12-01 | 2016-11-18 | Method for monitoring early subsidence of roof during fully-mechanized solid filling mining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510864579.0A CN105466390B (en) | 2015-12-01 | 2015-12-01 | Comprehensive mechanization solid filling coal mining top plate sinks quantity monitoring method in advance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105466390A true CN105466390A (en) | 2016-04-06 |
| CN105466390B CN105466390B (en) | 2017-12-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510864579.0A Expired - Fee Related CN105466390B (en) | 2015-12-01 | 2015-12-01 | Comprehensive mechanization solid filling coal mining top plate sinks quantity monitoring method in advance |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN105466390B (en) |
| AU (1) | AU2016364117B2 (en) |
| CA (1) | CA2986142C (en) |
| WO (1) | WO2017092577A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092577A1 (en) * | 2015-12-01 | 2017-06-08 | 中国矿业大学 | Method for monitoring pre-backfilling roof subsidence for use in fully mechanized solid-backfilling coal mining |
| CN110470273A (en) * | 2019-09-19 | 2019-11-19 | 河南理工大学 | A kind of back sinking measurement ball monitoring method based on pressure difference |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102042023A (en) * | 2010-12-27 | 2011-05-04 | 淄博矿业集团有限责任公司 | Hydraulic support with filling and leakage-preventing function |
| CN102135006A (en) * | 2011-02-18 | 2011-07-27 | 河南理工大学 | Automatic tamper type waste filling hydraulic support |
| CN103993911A (en) * | 2014-05-21 | 2014-08-20 | 中国矿业大学 | Roof dynamic state monitor for comprehensive mechanization filling coal mining goaf |
| CN104484987A (en) * | 2014-11-14 | 2015-04-01 | 中国矿业大学 | Coal mine working face roof safe real-time dynamic wireless monitoring device and method |
| CN204627669U (en) * | 2015-05-15 | 2015-09-09 | 山西大同大学 | Intellectual coal mine roof plate pressure wireless monitoring device |
Family Cites Families (8)
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| US4222612A (en) * | 1978-02-27 | 1980-09-16 | Kostovetsky Semen P | Method of mining flat-dipping and sloping beds of a mineral with hydraulic excavation |
| US4440448A (en) * | 1980-10-24 | 1984-04-03 | Gustav Hoberstorfer | Method for opening mineral deposit and subsequent mining thereof |
| SE452044B (en) * | 1983-03-23 | 1987-11-09 | Johnson Construction Co Ab | VIEW BY EXPLOSION OF SIGNIFICANTLY EXTENSIVE MOUNTAINS |
| CN101372891B (en) * | 2008-06-10 | 2010-08-11 | 沈阳市华祥矿山机械厂 | Strip filling integral backstopping coal mining method |
| CN102011588A (en) * | 2010-11-30 | 2011-04-13 | 淄博市王庄煤矿 | House pillar type cutting and filling method of medium coal seam for controlling movement deformation of overlying rock |
| CN102704974B (en) * | 2012-06-29 | 2015-04-08 | 中国矿业大学 | Hydraulic bracket and method for drawing, filling and mining at high position |
| CN103590846B (en) * | 2013-10-28 | 2016-03-30 | 山东科技大学 | The ratification method of the reasonable working resistance of a kind of working surface hydraulic support |
| CN105466390B (en) * | 2015-12-01 | 2017-12-01 | 中国矿业大学 | Comprehensive mechanization solid filling coal mining top plate sinks quantity monitoring method in advance |
-
2015
- 2015-12-01 CN CN201510864579.0A patent/CN105466390B/en not_active Expired - Fee Related
-
2016
- 2016-11-18 CA CA2986142A patent/CA2986142C/en active Active
- 2016-11-18 AU AU2016364117A patent/AU2016364117B2/en not_active Ceased
- 2016-11-18 WO PCT/CN2016/106334 patent/WO2017092577A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102042023A (en) * | 2010-12-27 | 2011-05-04 | 淄博矿业集团有限责任公司 | Hydraulic support with filling and leakage-preventing function |
| CN102135006A (en) * | 2011-02-18 | 2011-07-27 | 河南理工大学 | Automatic tamper type waste filling hydraulic support |
| CN103993911A (en) * | 2014-05-21 | 2014-08-20 | 中国矿业大学 | Roof dynamic state monitor for comprehensive mechanization filling coal mining goaf |
| CN104484987A (en) * | 2014-11-14 | 2015-04-01 | 中国矿业大学 | Coal mine working face roof safe real-time dynamic wireless monitoring device and method |
| CN204627669U (en) * | 2015-05-15 | 2015-09-09 | 山西大同大学 | Intellectual coal mine roof plate pressure wireless monitoring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092577A1 (en) * | 2015-12-01 | 2017-06-08 | 中国矿业大学 | Method for monitoring pre-backfilling roof subsidence for use in fully mechanized solid-backfilling coal mining |
| CN110470273A (en) * | 2019-09-19 | 2019-11-19 | 河南理工大学 | A kind of back sinking measurement ball monitoring method based on pressure difference |
| CN110470273B (en) * | 2019-09-19 | 2021-07-09 | 河南理工大学 | Roadway roof subsidence measuring ball monitoring method based on pressure difference |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2986142C (en) | 2019-12-31 |
| AU2016364117A1 (en) | 2017-10-26 |
| AU2016364117B2 (en) | 2018-11-01 |
| CA2986142A1 (en) | 2017-06-08 |
| WO2017092577A1 (en) | 2017-06-08 |
| CN105466390B (en) | 2017-12-01 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zhang Jixiong Inventor after: Zhang Qiang Inventor after: Zhang Jianguo Inventor after: Mei Xiancheng Inventor after: Zhou Nan Inventor after: Zhang Shuguang Inventor before: Zhang Qiang Inventor before: Zhang Jixiong Inventor before: Mei Xiancheng Inventor before: Sun Qiang |
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| CB03 | Change of inventor or designer information | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20171030 Address after: 221116 Research Institute of China University of Mining and Technology,, Jiangsu Applicant after: CHINA University OF MINING AND TECHNOLOGY Applicant after: CHINA PINGMEI SHENMA ENERGY CHEMICAL GROUP Co.,Ltd. Applicant after: PINGDINGSHAN TIANAN COAL MINING Co.,Ltd. Address before: 221116 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Applicant before: CHINA University OF MINING AND TECHNOLOGY |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |