LAYOUT METHOD OF UNDERGROUND EMBEDDED BODY AND PRECEDING HOLE EXCAVATING DEVICE

摘要

PURPOSE: To lay out an embedded body swiftly and secure the safety of construction work swiftly and further shorten a construction period and excavate a preceding hole rationally and move the embedded body more smoothly and hence reduce moving force. CONSTITUTION: There is installed a post-like embedded body 4 mounted with an excavating device on one end. A preceding hole is excavated in the direction intersecting with a structure 2 at right angles. Excavated earth and sand are discharged outside the preceding hole while the embedded body 4 is moved along the preceding hole and constructed, thereby installing a plurality of embedded bodies side by side. The embedded body 4 is rectangular-shaped in cross section while the preceding hole is excavated in the shape of rectangular cross section and is larger-sized than the embedded body 4. The longer sides of the preceding hole 4 are excavated along the preceding hole and laid out in the laying out direction of the round structure 2 in parallel to the preceding hole.