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요약정보
三维激光扫描技术在隧道限界中的应用 / Application of 3D Laser Scanning Technology in Tunnel Clearance
Resource Type
Academic Journal
Authors
闫晓楠
;
宋洪英
;
徐奇
;
霍燕涛
;
程潇
;
YAN Xiaonan
;
SONG Hongying
;
XU Qi
;
HUO Yantao
;
CHENG Xiao
Source
地理空间信息 / Geospatial Information
. 21(2):146-148
Subject
移动式
三维激光扫描
隧道
椭圆度
水平直径
限界
Language
Chinese
ISSN
1672-4623
Online Access
Find it @ DONGA
초록
针对新建地铁区间隧道限界是影响地铁安全运营重要因素之一,基于移动式三维激光扫描技术对新建地铁车站、隧道进行三维激光扫描作业,结果表明区间隧道管片椭圆度整体在10‰以内,椭圆度最大为12.5‰,椭圆度最小为1.6‰,整体拼装质量安全可靠;隧道水平直径与标准直径间存在偏差,最大偏差为41.7 mm,最小偏差为-0.8 mm,平均偏差为15.7 mm;对车站滑动门进行限界检测分析,发现共计存在15道滑动门侵界现象,侵界长度最大值为30.2 mm,最小值为2.2 mm,平均值为17.6 mm,侵界均为防踏空胶条不影响行车安全,移动式三维激光扫描技术为列车开通运营提供安全数据支持.
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