方庄矿一号井与技改井贯通测量地面控制网的建立

Establishment of Ground Control Network for Holing-through Survey Between No.1 Shaft and Transformed Shaft of Fangzhuang Mine

矿区地面控制网的统一布设是保证矿井贯通测量的前提和基础,当贯通测量在不同时期建成的井筒之间进行,且矿区原有控制点破坏严重时,此项工作尤为重要。在对测区情况和已知点的可利用性分析的基础上,采用全球卫星定位(GPS)技术建立方庄矿一号井与技改井贯通测量地面平面控制网,采用四等水准测量建立两井之间的高程控制网,完成了各项数据处理工作,并对成果进行了精度分析,为两井贯通测量奠定了坚实的基础。

Unified establishment of the ground control network of the mine is the precondition and foundation to ensure the holing-through survey between shafts.Specially,when the survey was carried out between the shafts digged at different periods,and when the original control points were severely damaged,the work is especially important.On the basis of the analysis for the mine area and the availability of the known points,firstly,that employing the global satellite positioning system（GPS） technology to establish the ground plane control network for holing-through between No.1 shaft and transformed shaft of Fangzhuang Mine was put forward in this paper.Secondly,the fourth-grade leveling was used to build the elevation control network between the shafts.Finally,various data processing were completed and the precise of control results were analyzed.The above-mentioned data laid a solid foundation for the holing-through survey.