煤矿冲击地压案例及发生机理

1、A Free sample background from Slide 1A Free sample background from Slide 2A Free sample background from Slide 3 A Free sample background from Slide 4（a）在被巷道切割的煤柱中在被巷道切割的煤柱中； （b）在煤层边缘部分在煤层边缘部分； （c） 在连续煤在连续煤体中；（体中；（d）在掘进的煤层巷道中；（在掘进的煤层巷道中；（e）在被巷道从煤体分离出来的煤柱在被巷道从煤体分离出来的煤柱中中；（；（f）在有底板或顶板破坏的巷道中在有底板或顶板破坏的巷道

2、中；（；（g）初次放顶时顶板折断处。初次放顶时顶板折断处。A Free sample background from Slide 5A Free sample background from Slide 6兖州矿区冲击地压分类A Free sample background from Slide 7 A Free sample background from Slide 8 A Free sample background from Slide 9（2 2）A Free sample background from Slide 10A Free sample background from S

3、lide 11A Free sample background from Slide 12A Free sample background from Slide 13A Free sample background from Slide 14（4 4）A Free sample background from Slide 15A Free sample background from Slide 16A Free sample background from Slide 173.13.1 煤柱应力集中型冲击地压发生条件煤柱应力集中型冲击地压发生条件 A Free sample backgrou

4、nd from Slide 183.23.2 顶底板应力集中型冲击地压发生条件顶底板应力集中型冲击地压发生条件 A Free sample background from Slide 193.33.3 震动应力释放型冲击地压发生条件震动应力释放型冲击地压发生条件 A Free sample background from Slide 20煤样动态破坏时间煤样动态破坏时间 DT弹性能指数弹性能指数WET 冲击能系数冲击能系数KA Free sample background from Slide 21A Free sample background from Slide 22A Free sam

5、ple background from Slide 23A Free sample background from Slide 24A Free sample background from Slide 25A Free sample background from Slide 26A Free sample background from Slide 27A Free sample background from Slide 28A Free sample background from Slide 29A Free sample background from Slide 30A Free

6、 sample background from Slide 31A Free sample background from Slide 32 A Free sample background from Slide 33二一区轨道下山二一区皮带下山二一区缆车巷二一区专用回风巷3757370037573800375739003757400037574100375742003757430037574400375745003842400皮13757460037574700z：-154.943Y：37574443.775X：3842446.246计设停采线3842300576.8417.40-229.5

7、73808变点轨2平1平2-191.394-186.619-154.824-158.49338422003842150缆1-205.36621201下巷21221工作面回风道21221上巷21221下巷21221下巷回风道21221工作面3842480375737003757380037573900375740003757410037574200375743003757440037574500375746003757470021211工作面（已采）21191工作面(已采)拐2拐1平过口平9平10皮2皮3皮4皮5z：-154.217Y：37574473.039X：3842394.533z：-15

8、3.940Y：37574462.348X：3842389.442z：-153.312Y：37574449.365X：3842393.196z：-147.370Y：37573655.999X：3842454.471z：-148.194Y：37573762.076X：3842453.584z：-156.653Y：37573844.265X：3842453.198z：-166.208Y：37573977.782X：3842451.836z：-168.832Y：37574069.226X：3842451.290z：-165.941Y：37574367.135X：3842447.400轨联口平联1-16

9、1.864-161.330缆3缆1-205.366z：-155.717Y：37574550.430X：3842461.245缆2z：-188.521Y：37574563.446X：3842312.606缆口z：-194.703Y：37574551.979X：3842195.709新回1z：-149.075Y：37574574.053X：3842414.357回2z：-158.729Y：37574578.901X：3842358.940回3z：-188.878Y：37574591.643X：3842213.221皮下1z：-141.777Y：37574520.123X：3842455.671皮下

10、2z：-154.643Y：37574526.223X：3842385.984新轨联1z：-145.883X：3842439.901Y：37574471.204第二高位抽放钻场开口上巷水仓下巷车场上巷车场N90EN90EY：37574536.76X：3842255.51Y：37574446.04X：3842436.21下巷水仓R=3260=923000Kp=5273R=6000=90Kp=9425计设停采线实际停采线21221回口回121221下巷穿过位置开口F16断层100m200m300m400m500m600m700m800m900m200m300m400m500m600m700m800m100m下巷测量起点测量起点“11.3”冲击地压460m1.5m下宽2.1m 高 1.5m460m-450m 锚网、锚索梁、喷浆、大立柱大立柱向上帮歪倒450m1.8m465m2.2m470m1.5m477m1.3m497m0.8m504m0.6m513m0.7m520m525m1.4m530m1.7m535m0.8m540m0.6m460m-520m 锚网索、架棚、单体柱52