摘要
联系测量是城市轨道交通测量工作的重点内容,该方法可以保证施工进度,优化地铁工程施工质量,提高施工效率,具有重要的应用价值。导线直传法和联系三角形法是目前常见的2种联系测量方法。重点介绍了两种方法的基本原理,对比分析两种方法的优缺点,并利用两种联系测量方法在上海市轨道交通11号线2期工程中的使用效果进行分析比较。结果证明,两种方法的互差非常小。可以得出,导线直传法和联系三角形法的成果差异较小,且结果准确可靠。但实际测量工作中还需注意几个问题:(1)根据现场情况,灵活选择;(2)使用较高等级的仪器进行观测,如I级全站仪;(3)施测前应对仪器进行严格的检验、校正;(4)联系三角形法应合理设计三角形的图形,严格满足相关规范要求。
In order to further optimize the construction quality of subway projects,guarantee construction progress and improve construction efficiency,connection survey is essential.Through the introduction of the traverse method and connection triangle method,compare and analyze their advantages and disadvantages and combined with the comparison of two methods of contact measurement in Shanghai Metro Line 11 phase II,the difference between the two methods is very small and the result is accurate and reliable.However,attention should also be paid to：（1）flexible selection based on site conditions;（2） use of higherlevel instruments for observations,such as Class I total stations;（3） the equipment should be strictly tested and corrected before observations;（4）connection triangle method should be reasonably designed to meet the relevant regulatory requirements.
作者
何伟
HE Wei(Shanghai Institute of Surveying and Mapping, Shanghai 200030, Chin)
出处
《现代测绘》
2018年第3期28-30,共3页
Modern Surveying and Mapping
关键词
城市轨道交通
联系测量
导线直传法
联系三角形法
urban rail transit
connection survey
traverse method
connection triangle method
