CONSTRUCTION METHOD FOR SHALLOW FOUNDATION

摘要

PURPOSE:To place concrete for the construction of concrete foundation without the use of wooden forms and to shorten a construction process, by a method wherein a perforated frame, corresponding to the concrete foundation, is pressed into the earth while it is being vibrated. CONSTITUTION:A required part of an asphalt layer on the surface of the soil is cut off by means of a cutter, and a perforated frame 4 is placed on an exposed surface of earth and sand 3. A breaker 6 provides the perforated frame 4 with vibration, and with this the frame 4 is pressurized by a boom 5. As a result, the perforated frame 4 is pressed into earth to form a foundation hole 17 having a similar shape to the external shape of the perforated frame 4. The bottom and sides of the foundation hole 17 are consolidated by vibration and press, and thereby concrete is poured directly into the foundation hole 17 for the construction of a concrete foundation for the stay for a road sign and the like.