GNSS在矿区地表移动观测中的应用研究

发布时间：2018-05-25 20:07

本文选题：GNSS-RTK + 不同环境　；参考：《山东科技大学》2017年硕士论文

【摘要】：GNSS技术拥有定位速度,快定位准确,作业时间广泛,实时性,作业方式简便等优势,在越来越广泛的领域中得到了应用,而且随着各个航天大国在该技术上的研究GNSS定位技术获得了很大的发展。相比与早期GNSS,三星GNSS在定位准确性和速度都有了十分巨大的进步。在以往的地表移动观测中GNSS常因精度问题而无法达到测量要求,本文针对在使用三星GNSS在地面移动观测中代替传统的水准测量和导线测量的可行性做了如下研究:在实验区域(某煤矿11303工作面)对工作面内的地表移动观测站分别使用三星GNSS接收机,水准和导线三种测量方式进行观测,对两种测量方式的成果数据进行误差分析,并将GNSS的测量数据与导线、水准数据进行对比,结合工程实例,分析在地表移动监测中使用GNSS-RTK技术的可行性。对工作面上布设于不同环境中的地面监测站分类,探讨在不同工作环境中使用GNSS接收机对观测站坐标信息的获取可以达到的精度。通过分析得出:GNSS-RTK技术在观测环境良好的耕地中定位精度可以达到厘米级,精度稳定且可信度高,在实验区域的村庄内精度可以达到0.04m,在存在遮挡且遮挡较为严重的区域无法得到固定解,并且精度不稳定。且在实际工程中,耕地多是地表移动变化量较大的地方面在矿区附近的村庄内地表相对稳定,变化量较小。因此在耕地中使用GNSS技术测量的结果相对误差较小,村庄内的由于地表移动的变化量小,而且测量结果十分不稳定,所以会产生很大的相对误差。从结果分析来看,在耕地中使用GNSS代替传统的水准及导线测量是可行的,但是在测量结果并不是十分理想,地表较为稳定的村庄内GNSS所测量数据并不能满足地表移动观测的要求。
[Abstract]:GNSS technology has the advantages of positioning speed, fast positioning accuracy, wide job time, real time, easy operation, and so on, so it has been applied in more and more fields. Moreover, with the development of GNSS technology in various spaceflight countries, great progress has been made. Compared with early GNSS, Samsung GNSS has made great progress in positioning accuracy and speed. In the past surface movement observation, GNSS is often unable to meet the requirement of measurement because of the problem of accuracy. In this paper, the feasibility of using Samsung GNSS to replace the traditional leveling and traverse survey in the ground movement observation is studied as follows: in the experimental area (a coal mine 11303 working face), the ground movement observation station in the working face is studied. Using Samsung GNSS receiver, Three measuring methods of leveling and traverse are observed, the error analysis of the result data of the two measuring methods is carried out, and the measurement data of GNSS are compared with the traverse and leveling data, and combined with the engineering example, the measurement data of GNSS is compared with that of traverse and leveling data. The feasibility of using GNSS-RTK technology in surface movement monitoring is analyzed. This paper classifies the ground monitoring stations placed in different environments on the working face, and discusses the accuracy that can be achieved by using the GNSS receiver to obtain the coordinate information of the observation stations in different working environments. Through analysis, it is concluded that the positioning accuracy of the GNSS-RTK technology in cultivated land with good observation environment can reach centimeter level, and the accuracy is stable and reliable. In the village of the experimental area the precision can reach 0.04m.The precision is unstable and can not be fixed in the area where there is occlusion and occlusion is more serious. In the practical engineering, most of the cultivated land is relatively stable in the inland surface of the villages near the mining area, and the change amount is relatively small. Therefore, the relative error of the measurement results using GNSS technique in cultivated land is small, because the change of surface movement is small, and the measurement result is very unstable, so it will produce a very large relative error. From the analysis of the results, it is feasible to use GNSS instead of traditional leveling and traverse survey in cultivated land, but the results are not very ideal. The data measured by GNSS in villages with stable surface can not meet the requirements of surface movement observation.
【学位授予单位】：山东科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TD325.4;P228.4

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