Vertical building included device and degree of vertical detection device

摘要

PURPOSE: To plant a construction right pole vertically with a simple structure by receiving the visible laser beam emitted vertically upward from a laser device with a light receiving sensor, and detecting the positional displacement from the vertical direction of the construction right pole. ;CONSTITUTION: A visible laser beam is emitted vertically upward from a visible semiconductor laser device 20 installed in the specified measurement position by insertion pipes 8 and 8 installed in parallel with the vertical measurement direction of a construction right pole 14. Next, the light receiving sensor of a laser beam detector 22 receives this laser beam so as to detect the positional displacement ΔX and ΔY from the vertical measurement direction. Next, the inclination of the construction right pole 4 is modified, using a position adjusting bolt 12, a jack 16, etc., so that the positional displacement ΔX and ΔY may be both 0, and then an object 4 for erection is temporarily fixed. And, concrete is laid at the bottom of a pile hole EH, and the construction right pole 4 is fixed vertically.;COPYRIGHT: (C)1996,JPO