赵学军
摘要:为保证两井之间巷道的正确贯通,两井的测量数据必须统一,即采用同一坐标系统和高程系统,为此,需在井上进行地面控制测量,使两个井筒置于同一控制网中;为了使井上、下使用同一坐标系统,需要进行矿井联系测量把地面的坐标系统和高程系统传递到井下;然后利用井下导线测量把井下起始方位和坐标延伸到相向掘进的两个头面。
Absrtact: In order to ensure the correct passage between the two wells, the measuring data of the two wells must be unified, that is, the same coordinate system and elevation system should be adopted. For this reason, the ground control survey should be carried out on the well, so that the two boreholes can be placed in the same control network. In order to use the same coordinate system under the well, it is necessary to carry out the mine contact survey to transfer the coordinate system and the elevation system of the ground to the underground. Then the starting direction and coordinate are extended to the two heads of the heading by underground traverse survey.
关键词:复杂条件;两井贯通;测量技术
Key words: complex condition;two-well-through;measuring technology
中图分类号:TD175 文献标识码:A 文章编号:1006-4311(2018)10-0106-02
陶二矿-711北大巷是为了解决陶二煤矿深部煤层的开采而在东副井开掘的一条主要运输大巷,该巷道施工线路长,通风困难,为改善其通风条件,决定在其中部开掘12430泄水巷与陶二矿四下采区12430下联巷贯通,12430泄水巷下头开口于-711北大巷,上头开口于12430下巷,巷道全长约650m左右,由于2214工作面的回采,2214下巷遭到破坏,使得由12430下联巷通过2214下巷-首采皮带下山-711北大巷-12430泄水巷这一贯通测量路线不再可能实施。这样就不能在巷道贯通前由一条起算边向贯通巷道的两端敷设井下导线,而只能由东副井和陶二新副井两个井口,通过地面联测、联系测量,再布设井下导线到待贯通巷道两端,进行贯通测量,也就是两井贯通测量。
地面两井口直线距离2100m,新副井井深450m,东副井井深860m,井下7″导线全长5450m左右。
根据《煤矿测量规程》第77条、78条规定,在布设井下基本控制导线时,一般每隔1.5~2.0km应加测陀螺定向边,而陶二矿进行此项工作需请外单位有资质、有仪器的单位进行。……