基于前后标尺法的盾构姿态测量及精度研究  

Research on shield attitude determination and accuracy based on pre and post scale method

作　　者：高俊强[1] 王维[1,2] 

机构地区：[1]南京工业大学土木工程学院,南京210009 [2]同济大学测量与国土信息工程系,上海200092

出　　处：《工程勘察》2010年第1期70-72,76,共4页Geotechnical Investigation & Surveying

基　　金：江苏省测绘局科研项目(JSCHKY200808)

摘　　要：前后尺法是人工导向测量的传统方法,它的原理简单、容易操作,目前仍然是一种广泛使用的姿态测量方法。本文详细讨论了前后尺法的测量原理和盾构姿态计算方法,并以导出的理论公式分析旋转角、平面偏差与高程偏差的测量精度,同时结合工程实践分析了姿态测量的最低精度,即盾构姿态平面精度约±10 mm,高程精度约±15 mm。上述结论对指导盾构推进和盾构姿态测量有重要的实际意义。The pre and post scale method is a traditional method of manual orientation measurement. Because of its convenience, it is still widely used to determine the attitude of the shield machine. This article discusses the measuring principle of pre and post scale method, the calculation method of attitude determination, the measuring accuracy of rotation angle, plane deviation and elevation deviation. Then it gives a theoretical formula. It also analyses the possible lowest accuracy combined with engineering practice, which is ± 10 mm plane accuracy and ± 15 mm elevation accuracy. The result has practical significance in shield attitude determination.

关 键 词：盾构隧道 姿态测量 人工导向 前后尺法 

分 类 号：P258[天文地球—测绘科学与技术]