| This artice is as the supporting of sloping tunnel in south-1 section in Saqu coal mine of hujin coke incorporated liability company for engineering background .For the particularity soft rock composite roof supporting of the stoping tunnel ,some favorable research finding are obtained by the means of the conjunction of theoretical and field experiment research and rapping circle theory and coupling supporting theory instructing construction .(l)Determining the shotcrete-bolt-graticule design principle of combination-arch by formatting ,determining ,nature and assorting for rapping circle of adjacent rock and the theory analyzing for shotcrete-bolt supporting structure ;Determining the supporting principle of bolt-net-tendon couple supporting by varied deforming mechanical machining style having varied supporting technology countermeasure point and common property of the soft rocks roadway having the feature of "complication" and "syntnesis".(2)Determining burderning of combination-arch by field experiment to eject proper thickness of combination-arch by theoretical arithmetic ,for distributing accorde of supporting design of loadway inlater.(3)Bolt is the main body of supporting in bolt-net-bar girder combination-arch supporting by culmination and lateral wall bolt formats combination-arch together by recompiling associating fracture rock in rapping...
|
PDF Full Text Request