Scheme design based on shaft contact measurement and drilling point integration mode & the application in the long tunnel precise penetration
In view of the problems that the long interval tunnel in the starting conditions is limited,pene-trating accuracy is low,this paper designs a scheme with strong feasibility,low risk,namely about 2/3 of the tunnel hole and shaft measurement integrated operation,through the form of long distance without di-rectional attachment wire,to control the coordinates of shield machine tunneling underground wire and ori-entation,can realize the precision of the tunnel.The results show that the scheme achieves the expected purpose,and has strong advantages compared with the traditional model,and can effectively avoid the oc-currence of measurement accidents.
NETL
NSTL
万方数据
维普
