Tunneling-free and coal pillar-free mining and construction method wherein coal mine field is not divided into mining areas

(12) iJ -9h(- WJ)N 2I IN E bl% EP la (19) P d PIT, R. ~ ~~ (10) MK"/ :Y (43) d PTWO 2021/031561 A1 2021 4 2 P 25 (25.02.2021) WIPO T PWC0T (5 1) 3p%4Jg :(72) pA: $(MA, Qihu a); IP [I f T N hi E21C 41/18 (2006.01) h A Sh ad RoaX 2 q A 579 Shandong (21)Ip$N PCT/CN2020/080949 266590 (CN)o At i (QIN, Zhongcheng); +[ (22) j1i H: 2020 4 3 f] 24 H (24.03.2020) M 579 ,Shandong 266590 (CN)o * ij(FAN, (25) $jig # : Kegong); +Wk aWS WNS k7 EX q M A% M579 Shandong 266590 (CN) o (26)Qfliig: A l(NING,Jianguo); + W W$fiTW G% (30) fi y : ff a X M A Y579 Shandong 266590 202010070706.0 202041f] 21 H (21.01.2020) CN (CN)0 o It -7 (GUO, Zhongping); Li3T (71 ) $i .: L $ * -(SHANDONG UNIVERSITY W&MN&MS 4f§599 OF SCIENCE AND TECHNOLOGY) [CN/CN]; Shandong 266590 (CN) o tA (WEN, Zhijie); M579t, Shandong 266590 (CN)o Y- 5799, Shandong 266590 (CN)o (54) Title: TUNNELING-FREE AND COAL PILLAR-FREE MINING AND CONSTRUCTION METHOD WHEREIN COAL MINE FIELD IS NOT DIVIDED INTO MINING AREAS -15 (57) Abstract: A tunneling-free and coal pillar-free mining and construction method wherein a coal mine field is not divided into mining areas. An upper main tunnel (1) and a lower main tunnel (2) are respectively arranged at upper and lower parts of a field, and a central air inlet inclined tunnel (15) is obliquely arranged at a central part. A first workface cutting hole (5) is arranged at the lower side of the upper main tunnel of a field boundary, a first workface (6) is arranged along the moving direction, and downward inclined mining is performed along the incline direction. The first workface is pushed downward to a lower boundary then moved to a cutting hole of - an adjacent replacement workface, to perform upward inclined mining to an upper boundary, and then moved again to a cutting hole of a next adjacent replacement workface, thereby moving up and down to perform cyclical pushing and mining. The method shortens the shaft depth, reduces the shaft construction period, and saves initial investment. r-0 0 l)8(),110~-,M+ T0 8(5 Tf 5 W O 2021/031561 Al11111I|||I|||I|||III|||I|I|||il|||i (74) tIg Ak:; t$i{lgf5 $ti T Rt15(JINAN JINDI INTELLECTUAL PROPERTY AGENCY CO., LTD); l LJ T i i: M i F X X LJ k M M 29 t4L M 1 R k ) U A & HK 410 , Shandong 250199 (CN)o (8 1) M 2 (lj,@M hr HA), V R V- f -T J){fA n9 [ AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, I