Displacement quantitative measurement manner null of the excavation hole by the auger

摘要

PURPOSE:To raise the efficiency and accuracy of excavating operation by a method in which the displacing amounts of each auger rod, calculated on the basis of the length, inclined amount, and underground buried length of each auger rod, are accumulated to obtain the displacing amount of the tip auger rod. CONSTITUTION:On the ground's surface, X-Y coordinate of an excavating base point P is set up, and the inclined amounts of auger rods R to vertical direction are measured by inclinometers set on each auger rod. The underground buried length L of the auger rods R is calculated on the basis of excavated depths measured by a depth detector. Then, on the basis of the length l, inclined amount theta, and underground buried length L of the rods R, displacing amounts for each rod R are calculated. After the displacing amounts are accumulated for X and Y components each, coordinate transformation is made according to the turning angles of the tip auger rod R1 to the excavating base point P, and the displacing coordinate of the tip auger rod R1 to the point P is calculated.