煤礦沖擊地壓案例及發(fā)生機(jī)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）在煤層邊緣部分在煤層邊緣部分； （c） 在連續(xù)煤在連續(xù)煤體中；（體中；（d）在掘進(jìn)的煤層巷道中；（在掘進(jìn)的煤層巷道中；（e）在被巷道從煤體分離出來(lái)的煤柱在被巷道從煤體分離出來(lái)的煤柱中中；（；（f）在有底板或頂板破壞的巷道中在有底板或頂板破壞的巷道

2、中；（；（g）初次放頂時(shí)頂板折斷處。初次放頂時(shí)頂板折斷處。A Free sample background from Slide 5A Free sample background from Slide 6兗州礦區(qū)沖擊地壓分類(lèi)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 煤柱應(yīng)力集中型沖擊地壓發(fā)生條件煤柱應(yīng)力集中型沖擊地壓發(fā)生條件 A Free sample backgrou

4、nd from Slide 183.23.2 頂?shù)装鍛?yīng)力集中型沖擊地壓發(fā)生條件頂?shù)装鍛?yīng)力集中型沖擊地壓發(fā)生條件 A Free sample background from Slide 193.33.3 震動(dòng)應(yīng)力釋放型沖擊地壓發(fā)生條件震動(dòng)應(yīng)力釋放型沖擊地壓發(fā)生條件 A Free sample background from Slide 20煤樣動(dòng)態(tài)破壞時(shí)間煤樣動(dòng)態(tài)破壞時(shí)間 DT彈性能指數(shù)彈性能指數(shù)WET 沖擊能系數(shù)沖擊能系數(shù)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 33二一區(qū)軌道下山二一區(qū)皮帶下山二一區(qū)纜車(chē)巷二一區(qū)專(zhuān)用回風(fēng)巷3757370037573800375739003757400037574100375742003757430037574400375745003842400皮13757460037574700z：-154.943Y：37574443.775X：3842446.246計(jì)設(shè)停采線3842300576.8417.40-229.5

7、73808變點(diǎn)軌2平1平2-191.394-186.619-154.824-158.49338422003842150纜1-205.36621201下巷21221工作面回風(fēng)道21221上巷21221下巷21221下巷回風(fēng)道21221工作面3842480375737003757380037573900375740003757410037574200375743003757440037574500375746003757470021211工作面（已采）21191工作面(已采)拐2拐1平過(guò)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軌聯(lián)口平聯(lián)1-16

9、1.864-161.330纜3纜1-205.366z：-155.717Y：37574550.430X：3842461.245纜2z：-188.521Y：37574563.446X：3842312.606纜口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新軌聯(lián)1z：-145.883X：3842439.901Y：37574471.204第二高位抽放鉆場(chǎng)開(kāi)口上巷水倉(cāng)下巷車(chē)場(chǎng)上巷車(chē)場(chǎng)N90EN90EY：37574536.76X：3842255.51Y：37574446.04X：3842436.21下巷水倉(cāng)R=3260=923000Kp=5273R=6000=90Kp=9425計(jì)設(shè)停采線實(shí)際停采線21221回口回121221下巷穿過(guò)位置開(kāi)口F16斷層100m200m300m400m500m600m700m800m900m200m300m400m500m600m700m800m100m下巷測(cè)量起點(diǎn)測(cè)量起點(diǎn)“11.3”沖擊地壓460m1.5m下寬2.1m 高 1.5m460m-450m 錨網(wǎng)、錨索梁、噴漿、大立柱大立柱向上幫歪倒450m1.8m465m2.2m470m1.5m477m1.3m497m0.8m504m0.6m513m0.7m520m525m1.4m530m1.7m535m0.8m540m0.6m460m-520m 錨網(wǎng)索、架棚、單體柱52