AUXILIARY SET FOR SURVEYING BOUNDARY POINT OF CONCRETE BOUNDARY PILE, AND ITS USING METHOD

PROBLEM TO BE SOLVED: To provide an auxiliary set accurately surveying, by one worker alone, the boundary point of a pile buried in a place where the distance between offsets cannot be accurately read, while in surveying the boundary point of a current concrete boundary pile, only a cross shape is done by one worker, and it is common practice to require two workers for surveying. SOLUTION: For the boundary point of a chamfered concrete pile, a transparent boundary point survey aid with a V-shape cross section is used, and put to the pile in L-shape. For a pile flush with the ground, a buried pile, or a pile abutted on a workpiece, a transparent plate type boundary point survey aid is covered. COPYRIGHT: (C)2009,JPO&INPIT