采用GPS控制测量系统圈定西沟煤业保安煤柱

为有效留设西沟煤业井田范围内的村庄、水体、道路的保安煤柱,确定以E级GPS控制测量作为地面首级控制测量,全站仪闭合导线、复测支导线、附合导线作为图根控制测量的工作方案。根据GPS控制测量作业得出井上下图根点和固定点的坐标值,结合保安煤柱的设计原则及方法、参数的选取原则等。本文以井田内的小李村和高速公路为例,采用保安煤柱设计原则,具体给出了村庄保安煤柱的拐点坐标和高速公路保安煤柱的偏移距离。

Security Coal Pillars Based on GPS Control Measurement System in Xigou Coal Industry Co.

To effectively reserve the security coal pillars of villages,water bodies and roads in Xigou Coal Industry Co.,taking Xiaoli Village and Expressway in the mine field as an example,according to the GPS control survey operation,the author obtains the coordinate values of the root point and the fixed point of the upper and lower maps of the well combined with the design principles and methods of security coal pillars,and the principles of parameter selection,and also puts forward a work scheme of using E-level GPS control survey as ground-level first-level control survey,and the total station closed wire,retest branch wire,and attached wire for the root control measurement,which specifically gives the inflection point coordinates of the village security pillars and the offset distance of the security pillars of the highway.