## 隧道贯通导线的设计

Abstract
In order to make two or more tunneling working face according to the design requirements in the intended location right through to the work is called Pierce survey. Its basic task is to ensure that the tunneling faces are heading in the direction of the design location and, makes the breakthrough after junction does not exceed the prescribed limits. Through work directly affect the quality of tunnel engineering, so it is necessary to research on the method of system.
We through a tunnel floor plan, layout wire inside the tunnel, determine the length of the wire, the design error and Angle error of edge, determine the breakthrough point, finally using the principle of indirect adjustment calculation met point of lateral error. When can not meet the requirements, needs to be added gyro, azimuth Angle measuring error of gyro edge design, design the gyro by using the method of error is expected to edge of the number and location. 源￥自%六:维;论-文'网=www.lwfree.cn
This article through to the tunnel wire the content requirements of study, contrast and research of the measuring methods of tunnel, discuss problems that should be paid attention, combining theory with practice, understanding of tunnel breakthrough technology further and understanding, consolidate their knowledge, to put a better job.

Abstract    II
1 绪 论    1
1.1国内隧道发展状况    1
1.2主要研究内容    2
1.3课题研究的目的和意义    3
1.3.1课题研究的目的    3
1.3.2课题研究的意义    3
2  隧道贯通误差    4
2.1 隧道贯通误差的分类及其限差    4
2.2隧道贯通误差的来源    4
3 地面导线测量误差    5
3.1洞口（近井）点的坐标误差影响    5
3.2地面控制网边的方向误差影响    5
4 联系测量误差    6
4.1 联系三角测量误差对定向的影响    6
4.2 气流和风力对定向的影响    6
4.3 目标偏心对定向的影响    6
5 井下导线测量误差    7
5.1测量水平角的误差    7
5.2测量垂直角的误差    7
5.3光电测距仪测边的误差    8
6 隧道贯通实例分析    9
6.1隧道概况    9
6.2 隧道导线设计    9
6.3 贯通点横向贯通误差的计算    9
6.3.1测边、测角精度等级（1）    10 隧道贯通导线的设计:http://www.lwfree.cn/shuxue/20190928/40103.html
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