斜坡面上孔底设计高程计算方法CALCULATIONS OF THE HOLE BOTTOM DESIGN ELEVATION ON SLOPE SURFACE
刘翼,师东亮,王仕林
LIU-Yi,SHI Dong-liang,WANG Shi-lin(Guangdong Hongda Blasting Co.
摘要(Abstract):
在爆破平场的炮孔测量实践中,探索出了一种斜坡面孔底设计高程的计算方法。在已知设计地面四个角点坐标和高程的情况下,不但可以计算四点共面的矩形内钻孔孔深,还可以将矩形划分为两个直角三角形计算四点异面的钻孔孔深。原理简单,既适用于少量炮孔的手工计算,也适用于通过计算机编程来计算大批量炮孔孔深。
A computing method had been explored to calculate the design elevation of hole bottom on slope surface in the practice of hole surveying.Given the coordinates and the elevation of the four points on the corner of the rectangle of projection,this method could calculate the elevation of the hole bottom not only on the four-point coplaner slope but also on the non-uniplanar sope,which could be divided into two right triangles.According to this method,the hole elevation on slope surface could be calculated quickly on-site.
关键词(KeyWords):
炮孔孔深;斜坡面;孔底设计高程;投影矩形
Hole depth;Slope surface;Design elevation of hole bottom;Rectangle of projection
基金项目(Foundation):
作者(Author):
刘翼,师东亮,王仕林
LIU-Yi,SHI Dong-liang,WANG Shi-lin(Guangdong Hongda Blasting Co.