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在现代地铁的施工中通常采用盾构法施工,为了满足隧道贯通时的误差(水平±50mm,垂直±25)从地面控制网引测到始发井直到盾构机出洞时的每一步测量都至为关键。本文主要以在广州市轨道交通六号线延长线施工工程为例,简要的探讨了地铁隧道施工中所采用到的控制测量措施(主要分为平面及高程点的井下传递、盾构机姿态及管片测量)。
In the modern subway construction usually shield construction, in order to meet the tunnel through the error (horizontal ± 50mm, vertical ± 25) from the ground control network to the starting well until the shield machine out of the hole every step of the measurement Are the key. This article mainly takes the extension project of Guangzhou Metro Line 6 as an example to briefly discuss the control measurement measures adopted in the subway tunnel construction (mainly divided into underground transmission at plane and elevation points, shield machine attitude and Tube measurement).