摘要
云冈矿井下巷道测试以往一般采用方位法给线方案,测量误差大,无法满足测试精度需要。针对980强力皮带大巷,采用基准线测量法进行测试方案设计并进行了测试实践。测量结果表明:巷道施工作业在150m时,方位偏移41s就能纠正在基准线上,有效地保障了该长巷道的一条线施工作业,测量精度符合设计要求。
In the past,the direction method is usually used in the tunnel test of Yungang Mine,which has a large measurement error and can not meet the needs of test accuracy.Aiming at 980 strong belt roadway,the test plan is designed and the test practice is carried out by using the datum line measurement method.The measurement results show that when the roadway construction is 150m,the azimuth deviation 41s can be corrected on the datum line,which effectively guarantees the construction of one line of the long roadway,and the measurement accuracy meets the design requirements.
作者
刘向花
Liu Xiang-hua(Yungang Coal Mine,Datong Coal Mine Group,Shanxi Datong 037017)
出处
《山东煤炭科技》
2020年第2期168-169,172,176,共4页
Shandong Coal Science and Technology
关键词
测量
基准线法
精度
一条线
measurement
datum line method
accuracy
one line