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Location | Number | Time | Location | Range of influence/m | Specific characteristics |
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Panel 250206 in syncline geological structure influence area | 1 | 2013-04-02 | 250206 headgate | 28 | The section of roadway was inverted trapezoid at the most serious position. The lower width and height of this section changed from 4.8 m to 4.3 m and 4.0 m to 3.5 m, respectively. |
2 | 2013-04-13 | 250206 tailgate | 198 | At 774-853 m, the lower left corner of the roadway was seriously inflated, the track is inclined and displaced, the roof of the upper right corner is seriously sunk, and the height of roadway was only 2.9 m in the most severe position. |
3 | 2013-04-22 | 250206 headgate | 240 | The heaving floor of roadway was serious, the mean value of heaving floor was 0.3 m, and the most serious value of heaving floor was 0.62 m. |
4 | 2013-04-29 | 250206 headgate | 45 | The mean value of heaving floor was 0.48 m, and the most serious value of heaving floor was 0.94 m. the left rib (mining direction) of roadway was seriously deformed, with a mean deformation of 0.38 m, and the most serious deformation of left rib was 0.69 m. |
5 | 2013-05-11 | 250206 tailgate | 216 | This time is mainly heaving floor of roadway, with a mean value of 0.4 m, the most serious value of 0.96 m, and slight influence in roadway roof and two ribs. |
6 | 2013-05-18 | 250206 headgate | 121 | The mean value of heaving floor was 0.6 m, and the most serious value of 1.82 m; the right rib (mining direction) of roadway changed from 4.5 m to 2.9 m. |
7 | 2013-05-24 | 250206 headgate | 200 | The mean value of heaving floor was 0.93 m, and the most serious value is 1.63 m; the whole track of the roadway in the severe section was lifted as a whole. |
Panel 250205 in syncline geological structure influence area | 8 | 2015-01-02 | 250205 tailgate | 60 | In the severely deformed section, the roadway was seriously deformed and damaged, the roof and floor were connected, and the two ribs moved close greatly. |
9 | 2015-01-07 | 250205 tailgate | 54 | At 936-990 m, the value of heaving floor was 0.4-0.8 m, and the belt rack was lifted and tilted outwards. |
10 | 2015-02-07 | 250205 tailgate | 150 | At 1600-1750 m, the value of heaving floor was 0.3-1.1 m, the roof subsidence is small, and the track is lifted and tilted outward. |
11 | 2015-02-12 | 250205 headgate | 60 | The roof sunk by 0.3 m, the value of heaving floor was 0.3-0.5 m, the track was lifted, and the transfer train was overturned. |
12 | 2015-02-18 | 250205 tailgate | 20 | The two ribs of roadway moved close to 0.3-0.5 m, and the roof and floor changed a little. |
13 | 2015-02-28 | 250205 tailgate | 70 | The floor bulged by 0.3-0.5 m, and the two ribs moved closer by 0.1-0.3 m. |
14 | 2015-03-08 | 250205 tailgate | 15 | The periodic weighting of the panel 250205 caused the heaving floor of roadway in advance of the mining face. |
15 | 2015-04-19 | 250205 tailgate | 8 | The floor bulged by 0.2-0.3 m, and the two ribs (mining direction) of roadway were seriously deformed, with a mean deformation of 0.28 m in left rib and 0.22 m in right rib. |
16 | 2015-05-10 | 250205 tailgate | 11 | The value of heaving floor was serious, with a mean value of 1.9 m, the most serious value is 2.4 m. |
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