环测方法及原理环测法,就是在一定长度的笔直的定向钻杆两端,各安一组测斜仪,并以孔口定向为基础,向下一段接一段地连环定向,测出钻孔各测点的顶角和终点角.具体到某组仪器来说,就是用悬垂原理测出某测点的钻孔顶角和终点角(钻孔弯曲方向两铅垂剖面在垂直钻孔轴线的倾斜平面上,并以钻孔轴线 Loop method and the principle of ring method, is a certain length of the straight directional drill rod at both ends, each security group inclinometer, and to the orientation of the orifice, the next paragraph after paragraph of the ring orientation, measured drilling Hole measuring point of the vertex angle and the end point angle specific to a group of instruments, is to use the principle of hanging to measure a measuring point of the drilling angle and the end point of the angle (drilling direction of the vertical bending axis of two vertical drilling axis On the inclined plane, and with the drilling axis