摘要
为了解决传统画线方法施工三心圆拱岔口画线工作量大、精度差的问题,根据椭圆与三心圆的相似性,采用椭圆定义和布设两条控制线的措施,只用9个数据控制三心圆拱岔口开挖轮廓尺寸,达到了三心圆拱岔口施工画线快捷、方便、精准的目的,使开挖三心圆拱巷道岔口画轮廓线的工效大大提高,三心圆拱岔口施工的成形质量得到了明显的改善。
In order to solve the problems in traditional line drawing method of three - centred arch junction line, including great workload and poor precision. According to the similarity of elliptic with three heart circle, the paper used elliptical to define and set two control lines, with only nine parameter applied to control the size of three heart arch junction excavation, realizing rapid, convenient and precise drawing of three - centred arch roadway junction contour line, greatly improving the efficiency and the construction quality.
出处
《煤炭工程》
北大核心
2014年第9期40-42,共3页
Coal Engineering
关键词
三心圆拱
岔口
轮廓线
画线方法
画线精度
three - centred arch
junction
contour line
line drawing method
drawing accuracy
