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  5. The Determination of Plumb-line Deviation by Adopting GNSS/ leveling Method in Super Long Tunnel Bre

The Determination of Plumb-line Deviation by Adopting GNSS/ leveling Method in Super Long Tunnel Bre

来源 :第八届中国卫星导航学术年会 | 被引量 : 0次 | 上传用户：cqyxp
【摘 要】
：
In the long tunnel connection surveying,GNSS technology is generally used to measure the ground azimuth and transmit benchmark to the underground.
【作 者】
：
Ji MA Zhiqiang YANG Guofeng JI 
【机 构】
：
School of geological engineering and surveying,Chang'an University,Xi'an,China
【出 处】
：
第八届中国卫星导航学术年会
【发表日期】
：
2017年4期
【关键词】
：
GNSS/ leveling GGMplus model plumb-line deviation Super long tunnel break-throug 
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　　In the long tunnel connection surveying,GNSS technology is generally used to measure the ground azimuth and transmit benchmark to the underground.
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