Allowance of Lateral Breakthrough Error for Super Long Tunnels from 20km to 50km

(整期优先)网络出版时间:2004-03-13
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Uptonowthereisnospecificationabouttheallowanceoflateralbreakthrougherrorforsuperlongtunnelfrom20kmto50km.OnthebasisofthedesignofGPSnetworkslocatedoutsideandinsidetunneltraversenetwork,weproposeamethodforcalculatingtheinfluencevaluecausedbycontrolsurveyingerrors.ThroughalotofsimulativecalculationsandcombinationwithpiercingpracticeofsupertunnelsinWanJiazaiProject,Shanxiprovince,wepresentanallowancetableoflateralbreakthrougherrorforsuperlongtunnelsfrom20kmto50km.