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Strategic Study of CAE >> 2010, Volume 12, Issue 12

Control measuring technique of long distance only head driving in shield tunnel

1. Beijing Underground Diameter Project Department, China Railway Tunnel Group, Beijing 100045, China;

2. Central Station of Security and Euality Supervision,Ministry of Railway, Beijing 100045, China

Received: 2010-08-01 Available online: 2010-12-16 13:05:01.000

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Abstract

The only head driving distance of the engineering of Beijing underground diameter line is 5.2 km, thus controlling the precision of tunnel transfixion is difficult. Based on the analysis of the measuring accuracy, only through the wire line can not satisfy the design requirements of provisions error limit. Eventually, methods like wire directly orientation, adding the gyro in the tunnel and control net of wire of ground and underground in close connection are determined. These increased the lateral error precision of piercing,and achieved expected effect.

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References

[ 1 ] 中华人民共和国铁道部.新建铁路工程测量规范(TB10101-99)[M].北京:中国铁道出版社,1999.

[ 2 ] 秦长利.城市轨道交通工程测量[M].北京:中国建筑工业出版社,2008.

[ 3 ] 高俊强,王斌.测有一个陀螺方位角地下导线的计算及最佳加测位置的理论证明[J].南京工业大学学报,2005,27(3):47-50. link1

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