类矩形盾构隧道断面测量及数据处理方法研究与应用

Research and Application of Sectional Measurement and Data Processing Method for Quasi-rectangular Shield Tunnel

在杭州地铁4号线二期工程的明彭转换井~彭埠站区间隧道施工中,引入了一种崭新的隧道形式——“类矩形”盾构隧道。类矩形隧道是近年来在城市轨道交通隧道领域出现的一种新型盾构隧道形式,其隧道横截面由多条不同半径的圆弧构成,有别于传统的圆形隧道,在断面的施测及数据处理方面要更为复杂。本文介绍了一种针对类矩形盾构隧道断面测量及数据计算的新方法,并结合杭州地铁断面测量工程实例证明该方法的有效性。

A new tunnel form“quasi-rectangular”shield tunnelhavebeenintroduced into the second phase of hangzhou metro line 4 MingPeng Convert well~PengBu station tunnel construction.Quasi-rectangular tunnel is a new type of shield tunnel in the field of urban rail transit tunnels in recent years,the cross section of the tunnel is composed of a number of arcs with different radii,that is different from the traditional circular tunnel,The measurement and data processing of the section are more complicated.In this paper,a new method for sectional measurement and data calculation of quasi-rectangular shield tunnel is introduced,and the effectiveness of the method is proved by an example of sectional measurement of Hangzhou metro.