减少特长隧洞贯通误差的导线布设方法

The Method of Laying Traverses to Reduce the Through Error of the Extra-lon g Tunnel

文中分析了影响特长隧洞横向贯通误差的主要因素,同时结合实际工作经验,就导线点点位的设置、控制网的布设及其施测方法提出一些新方法和措施,并给出实际测量时的意见和建议。

The paper analyses main factors affecting the lateral through error of the extra-long tunnel. Simultaneously some new methods and actions to positi on traverse points and survey the control framework are put forward and some sug gestions when the actual survey is made are given as well in the paper.