摘要公路建设在刺激经济增长方面有着重要的意义，公路建设加快了人员流动和 货物的运输，促进沿线地区经济发展。在改革开放前 30 年，中国公路建设主要 集中在东部沿海地区，公路的建设带动了东部地区的经济发展，增加了就业，推 动产业升级和空间布局优化。随着东部经济发展趋于平缓，中国将加大中西部地 区基础设施建设，农村公路也会更加发达，特别是打通发达地区和欠发达地区的 运输通道，改善中西部地区的投资环境，促进资源合理的转化，实现一体化的社 会分工。在新的时期，随着高速公路越来越多的向偏远地区和山区发展，地质条 件变得复杂、桥梁和隧道的增加使得公路施工难度加大，同时对隧道的贯通测量 提出新的要求。 70812

本文以黄延高速墩梁隧道为例，在充分收集前人资料的基础上根据现场实际 情况，总结提高隧道贯通测量精度的方法。本文分为洞外和洞内控制测量两个部 分，洞外控制测量主要利用 GPS 建立平面控制网，采集完卫星数据后经过数据处 理软件进行网平差处理得到控制点的坐标及其精度，根据误差分配原则达到贯 通测量所需要的精度；洞内控制测量部分采用导线测量建立平面控制网，为达到 隧道贯通要求，使用了交叉双导线布设方式提高洞内平面控制测量的精度，高程 部分使用按照四等水准测量要求进行测设，满足隧道贯通测量的精度。在仪器使 用和测绘质量两个方面提出提高隧道贯通测量精度的方法。 

该论文有图 7 幅，表 5 个，参考文献 10 篇。 

毕业论文关键词：公路建设 桥梁和隧道 误差预计 贯通测量精度

Methods for improving tunnel holing-through survey precision analysis

Abstract Road construction in stimulating economic growth is significant, road construction accelerated the movement of people and goods transport, and promote economic development along the region. In the first 30 years of reform and opening up, China's road construction mainly concentrated in the eastern coastal areas, road construction led to the economic development of the eastern region, increased employment, promote industrial upgrading and space layout optimization. With the economic development of the eastern flatten, Chinese central and western regions will increase infrastructure construction, rural roads will be more developed, especially in developed areas and open up underdeveloped areas of transport corridors, improve the investment environment in central and western regions, promote resource reasonable transformation, social pision of labor integration. In the new period, as more and more development of highways to remote and mountainous areas, geological conditions become complicated, bridges and tunnels to increase road construction makes more difficult, while the measurement of the tunnel through new demands.

In this paper, taking the highway tunnel as an example, the method of improving the measurement accuracy of tunnel penetration is summarized based on the full collection of previous data. The cave and tunnel control measurement of two parts, outside tunnel control survey mainly based on GPS Plane Control Network, after collecting satellite data after data processing software of network adjustment to get the coordinates and its precision control, according to the error distribution principle to link the accuracy of measurement; inside control measurement by traverse survey to establish plane control network, to tunnel through requirements, the use of the double cross traverse layout method to improve the precision of the plane control measure in the tunnel, some elevation of use in accordance with the requirements of the fourth grade leveling survey of survey and design, satisfy the tunnel through the measurement

accuracy. The method of improving the accuracy of tunnel through measurement is put forward in two aspects of the instrument and the quality of Surveying and mapping.