zig zag roadway

To introduce a method about the application of benchmark during the construction in curving tunnel.

介绍了曲线巷道施工的一种方法定座尺点法 ,该方法定线方法简单 ,精度可靠 ,现场施工易于操作 ,并能随时对巷道断面进行验收测

In view of the problems that the continuous towing vehicle is not adapted to the complicated conditions such as tilted and crooked roadway,especially at slope changing point,a new combined bending unit and rope pressing unit are developed,thus the problems during installation of continuous towing vehicle in tilted and crooked roadway of winning district can be solved.

针对现有连续牵引车不适应在条件复杂的大倾角弯曲巷道、以及在变坡点处使用的问题,研制了一种新型的组合弯道装置和压绳装置,从而解决了采区大倾角弯曲巷道连续牵引车的安装问题。