激光断面仪在隧道开挖与初期支护中的应用

The application of laser profiler to detect excavation and preliminary bracing of tunnel

简述了隧道激光断面仪检测的基本原理和使用方法,并介绍了激光断面仪在开挖与初期支护断面轮廓检测中的目的和工程实例,针对标准断面选取的原则不同,定性地描述了检测出的两种断面轮廓的数据可能出现的偏差。

The paper proposes the fundamental and use method of laser profiler, and it also presents the targets and the engineering examples in tunnel excavation and preliminary bracing profiled outline that using laser profiler to detect. Owing to different principles of selecting standard section, the paper qualitative describes the potential deviations that causing from the two profiled outlines.