WO2017092577A1 - Method for monitoring pre-backfilling roof subsidence for use in fully mechanized solid-backfilling coal mining - Google Patents
Method for monitoring pre-backfilling roof subsidence for use in fully mechanized solid-backfilling coal mining Download PDFInfo
- Publication number
- WO2017092577A1 WO2017092577A1 PCT/CN2016/106334 CN2016106334W WO2017092577A1 WO 2017092577 A1 WO2017092577 A1 WO 2017092577A1 CN 2016106334 W CN2016106334 W CN 2016106334W WO 2017092577 A1 WO2017092577 A1 WO 2017092577A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coal mining
- hydraulic support
- filling
- solid
- backfilling
- Prior art date
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- 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
Definitions
- the invention relates to a method for monitoring the early sinking amount of a fully mechanized solid-filled coal mining roof, and is particularly suitable for monitoring the sinking amount of a roof in a comprehensive mechanized solid-filled coal mining in a mine.
- the dynamic change of the roof in the comprehensive mechanized filling coal mining technology is the basic data that must be mastered. After the solid material is filled into the goaf, with the advancement of the working face, the dynamics of the roof can be grasped in time, which is beneficial to the analysis and control of the mining pressure law of solid filling coal mining, and is also beneficial to the detection of the filling process and the reaction filling effect. In order to ensure the good management of the top plate of the filling body. Therefore, it is of great significance to study an accurate and practical method for monitoring the amount of roof pre-sinking to ensure the filling effect of solid-filled coal mining technology at the coal mine site.
- An object of the present invention is to provide a method for monitoring the amount of advance subsidence of a roof under the condition of integrated mechanized solid-filled coal mining technology.
- the Pro/Engineer software is used to establish the solid simulation model to obtain the inclination-support height curve of the post after filling the hydraulic support of the coal mining;
- the method for monitoring the early sinking amount of the solid-filled coal roof of the present invention is In actual application, it is only necessary to measure the inclination angle of the post-column after the hydraulic support of the coal-filled hydraulic support after filling the coal-filling hydraulic support in the filling operation cycle, and then according to the physical simulation model and the structural size parameters of the hydraulic support for filling the coal mining The geometric relationship between the structure and the structure is obtained by prematurely sinking the solid-filled coal roof.
- the method for monitoring the amount of advance sinking of the top plate is simple and easy, low in cost, and has extensive field practicality.
- FIG. 1 is a three-dimensional solid model diagram of a four-column filling coal mining hydraulic support according to an embodiment of the present invention
- FIG. 2 is a two-dimensional skeleton model diagram of a four-column filling coal mining hydraulic support according to an embodiment of the present invention
- FIG. 3 is a graph showing a tilt-support height curve of a post of a four-column filling coal mining hydraulic support according to an embodiment of the present invention
- Figure 4 is a side view showing the state of the working face after the operation of filling the solid material in the first cycle operation at the beginning of the monitoring of the present invention
- Figure 5 is a side view showing the state of the working face before the filling of the solid material in the second cycle operation at the beginning of the monitoring of the present invention
- Fig. 6 is a simplified diagram showing the overlapping state of the hydraulic support for filling the coal in two cycle operations during the monitoring of the present invention.
- 1-filled coal mining hydraulic support front roof beam 2-filled coal mining hydraulic support rear roof beam, 3-filled coal mining hydraulic support rear pillar, 4-porous bottom unloading conveyor, 5-fill coal mining hydraulic Top plate at the end of the rear beam of the bracket, 6-scraper conveyor, 7-filled coal mining hydraulic support, 8-filled coal mining hydraulic support base, 9-solid filling material, 10-solid coal wall.
- the moving scraper conveyor is used to fill the coal mining face by using the shifting scraper conveyor 6, and the filling coal mining hydraulic support 7 is filled, and the solid material 9 is filled for filling to complete a cycle.
- the operation as shown in Fig. 4, after the filling operation of the filled solid material 9 is completed, the inclination angle ⁇ 1 of the column 3 after the filling of the coal mining hydraulic support is measured to be 80.52°, according to the value of ⁇ 1 , the curve shown in Fig. 3 Available, the support height at this moment is 3200mm.
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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
Description
Claims (1)
- 一种综合机械化固体充填采煤顶板提前下沉量监测方法,其特征在于包括如下步骤:The invention discloses a method for monitoring the early sinking amount of a comprehensive mechanized solid-filled coal mining roof, which comprises the following steps:(1)根据充填采煤液压支架三维实体模型以及模型各个部位结构的尺寸参数,利用Pro/Engineer软件建立实体仿真模型,得到充填采煤液压支架后立柱(3)倾角-支撑高度曲线;(1) According to the three-dimensional solid model of the hydraulic support of the coal mining and the dimensional parameters of the structure of each part of the model, the Pro/Engineer software is used to establish the solid simulation model to obtain the inclination-support height curve of the post (3) after filling the hydraulic support of the coal mining;(2)在常规的充填采煤循环作业中,进行充填采煤工作面割煤、推移刮板输送机(6)、推移充填采煤液压支架(7)、充填固体物料(9)作业,完成一个循环作业,当充填固体物料(9)作业结束后,测出此刻充填采煤液压支架后立柱(3)倾角α1;(2) In the conventional filling coal mining cycle operation, the coal mining face is cut, the scraper conveyor (6) is moved, the hydraulic support (7) is filled, and the solid material (9) is filled. A cycle operation, when the operation of filling the solid material (9) is completed, the inclination angle α 1 of the column (3) after filling the coal mining hydraulic support at the moment is measured;(3)开始第二个循环作业,当第二个循环作业进行到推移充填采煤液压支架(7)作业结束后,充填固体物料(9)作业开始前,再次测出此刻充填采煤液压支架后立柱(3)倾角α2;(3) Start the second cycle operation. When the second cycle operation is completed and the filling of the coal mining hydraulic support (7) is completed, before the start of the operation of filling the solid material (9), the hydraulic support for filling the coal at the moment is again measured. Rear column (3) inclination angle α 2 ;(4)在两次循环作业监测出的充填采煤液压支架后立柱(3)倾角的基础上,根据Pro/Engineer软件建立的实体仿真模型得出充填采煤液压支架后立柱(3)倾角-支撑高度曲线,得到两次监测充填采煤液压支架后立柱倾角时的支撑高度差Δl;(4) Based on the tilt angle of the post (3) after the hydraulic support of the coal mining machine monitored by the two-cycle operation, according to the solid simulation model established by Pro/Engineer software, the tilting angle of the post (3) after filling the coal mining hydraulic support is obtained. Supporting the height curve, obtaining the support height difference Δl when the inclination of the column after the hydraulic support of the coal mining is filled twice;(5)将充填采煤液压支架简化成几何图形,并把两个位置的充填采煤液压支架(7)重叠起来,并且理想化地将两个时期的充填采煤液压支架的后顶梁以及顶板提前下沉段连接而成的三角形作为相似三角形进行处理,即从而得到充填采煤液压支架后顶梁的断点处的顶板提前下沉量,即 (5) Simplify the filling of the coal mining hydraulic support into a geometric figure, and overlap the two-position filling coal mining hydraulic support (7), and ideally fill the rear roof beam of the coal mining hydraulic support for two periods and The triangle in which the top plate is connected to the sinking section in advance is treated as a similar triangle, that is, Therefore, the amount of advancement of the roof at the break point of the top beam of the hydraulic support after filling the coal mining hydraulic support is obtained, that is,
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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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 (2)
Application Number | Priority Date | Filing Date | Title |
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CN201510864579.0A CN105466390B (en) | 2015-12-01 | 2015-12-01 | Comprehensive mechanization solid filling coal mining top plate sinks quantity monitoring method in advance |
CN201510864579.0 | 2015-12-01 |
Publications (1)
Publication Number | Publication Date |
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WO2017092577A1 true WO2017092577A1 (en) | 2017-06-08 |
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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 |
Country Status (4)
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CN (1) | CN105466390B (en) |
AU (1) | AU2016364117B2 (en) |
CA (1) | CA2986142C (en) |
WO (1) | WO2017092577A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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 |
Citations (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 |
US4603910A (en) * | 1983-03-23 | 1986-08-05 | Jcc Construction Company Ab | Method of blasting rock caverns with large cross-sectional area |
CN101372891A (en) * | 2008-06-10 | 2009-02-25 | 沈阳市华祥矿山机械厂 | Strip filling integral stoping coal mining method |
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CN102704974A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Hydraulic bracket and method for drawing, filling and mining at high position |
CN103590846A (en) * | 2013-10-28 | 2014-02-19 | 山东科技大学 | Method of verifying reasonable working resistance of working face hydraulic support |
CN105466390A (en) * | 2015-12-01 | 2016-04-06 | 中国矿业大学 | Method for monitoring early subsidence of roof during fully-mechanized solid filling and coal mining |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN102042023B (en) * | 2010-12-27 | 2013-04-24 | 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 |
CN103993911B (en) * | 2014-05-21 | 2016-01-06 | 中国矿业大学 | Comprehensive mechanization filling coal mining goaf top plate dynamic monitor |
CN104484987B (en) * | 2014-11-14 | 2018-07-27 | 中国矿业大学 | The real-time dynamic radio monitoring device of coal mine work area roof safety 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 |
-
2015
- 2015-12-01 CN CN201510864579.0A patent/CN105466390B/en not_active Expired - Fee Related
-
2016
- 2016-11-18 AU AU2016364117A patent/AU2016364117B2/en not_active Ceased
- 2016-11-18 WO PCT/CN2016/106334 patent/WO2017092577A1/en active Application Filing
- 2016-11-18 CA CA2986142A patent/CA2986142C/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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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 |
US4603910A (en) * | 1983-03-23 | 1986-08-05 | Jcc Construction Company Ab | Method of blasting rock caverns with large cross-sectional area |
CN101372891A (en) * | 2008-06-10 | 2009-02-25 | 沈阳市华祥矿山机械厂 | Strip filling integral stoping 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 |
CN102704974A (en) * | 2012-06-29 | 2012-10-03 | 中国矿业大学 | Hydraulic bracket and method for drawing, filling and mining at high position |
CN103590846A (en) * | 2013-10-28 | 2014-02-19 | 山东科技大学 | Method of verifying reasonable working resistance of working face hydraulic support |
CN105466390A (en) * | 2015-12-01 | 2016-04-06 | 中国矿业大学 | Method for monitoring early subsidence of roof during fully-mechanized solid filling and coal mining |
Also Published As
Publication number | Publication date |
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CA2986142C (en) | 2019-12-31 |
AU2016364117B2 (en) | 2018-11-01 |
CN105466390A (en) | 2016-04-06 |
CN105466390B (en) | 2017-12-01 |
CA2986142A1 (en) | 2017-06-08 |
AU2016364117A1 (en) | 2017-10-26 |
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