| 摘要 |
FIELD: mining. ^ SUBSTANCE: device for orientation of tunnelling system during construction of curved tunnels includes support laser radiation source installed in the starting tube, laser target installed on tunnelling system, intermediate laser modules installed at some distance from each other within visual range of erected part of the tunnel, metre of amount of advance and data transfer channels between control system units of the device and computer with a display. At that, support laser radiation source, laser target and intermediate laser modules are made in the form of standard modules, each of which includes two-dimensional inclinometre, rotary laser levelling unit and recording unit of laser radiation, which are arranged on common platform; at that, platform is made with possibility of oscillatory movement about horizontal axis perpendicular to tunnel axis. ^ EFFECT: improvement of orientation accuracy of tunnelling system, standardisation of device and simplification of its assembly. ^ 3 dwg |
