LEADER 02930nam 22005655 450 001 9910897986503321 005 20241019125733.0 010 $a981-9780-82-9 024 7 $a10.1007/978-981-97-8082-2 035 $a(MiAaPQ)EBC31733708 035 $a(Au-PeEL)EBL31733708 035 $a(CKB)36378909300041 035 $a(DE-He213)978-981-97-8082-2 035 $a(EXLCZ)9936378909300041 100 $a20241019d2024 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aTheory and Method of Automatically Formed Roadway in Underground Mining /$fby Qi Wang, Bei Jiang, Zhenhua Jiang 205 $a1st ed. 2024. 210 1$aSingapore :$cSpringer Nature Singapore :$cImprint: Springer,$d2024. 215 $a1 online resource (162 pages) 311 $a981-9780-81-0 327 $aIntroduction -- Mining Theory of Automatically Formed Roadway (AFR) -- AFR Mining Method and Key Technologies -- The AFR with Shallow Buried Depth -- Model Test System of AFR Mining Method -- Design Principle of Key Parameters -- Summary and Prospect of AFR Mining Method. 330 $aThis book investigates in detail the theory and method of automatically formed mining roadway (AFR). The AFR method utilizes mining pressure and broken expansion characteristics of the collapsed rock mass in the gob to automatically form roadways, which changes the traditional ?long cantilever beam? to ?short cantilever beam? structure, and eliminate roadway excavation and coal pillar reserve. Key technologies are developed under the guidance of the ?equilibrium mining? theory, such as in situ drilling and zoning technology, roof directional presplitting technology, high prestressed constant-resistance support technology, and gangue blocking support technology. The mining technologies and methods are successfully applied to a large number of coal mines of different geological conditions. The book is intended for both researchers and practitioners working in the mining, civil, and geological engineering fields. 606 $aGeotechnical engineering 606 $aEngineering geology 606 $aGeology 606 $aGeotechnical Engineering and Applied Earth Sciences 606 $aGeoengineering 606 $aGeology 615 0$aGeotechnical engineering. 615 0$aEngineering geology. 615 0$aGeology. 615 14$aGeotechnical Engineering and Applied Earth Sciences. 615 24$aGeoengineering. 615 24$aGeology. 676 $a624.151 700 $aWang$b Qi$0646598 701 $aJiang$b Bei$01075553 701 $aJiang$b Zhenhua$01767062 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910897986503321 996 $aTheory and Method of Automatically Formed Roadway in Underground Mining$94211912 997 $aUNINA