METHOD OF CONSTRUCTION OF EXECUTION OF BURIED PIPE GROUP UNDER STRUCTURE

摘要

PURPOSE: To aim at safety of execution work by installing a tunnel excavating device in grooves of both sides of a building structure to construct a tunnel leading from one groove to other groove with reciprocating movement of an auger, and connecting embedded pipe with the exposed tips and repeating the reciprocating movement of passing through pipes in a tunnel while pulling out the auger. CONSTITUTION: Grooves 6, 7 are excavated on the both sides of a building structure 1, and auger expansion-type tunnel excavating device 8 is installed in the groove 6 so as to move freely. Then, a tunnel leading to other groove 7 by reciprocating movement of an auger rotation driving device 24 mounted on a guide frame 20 of the auger expansion-type tunnel excavating device 8 and by repeating of rotation of augers 9 and its extensions. One end of each embedded pipe 2 is connected to corresponding each auger 9 of the exposed tip of the groove 7, and work of pulling out one of augers 9 and removing it is repeated. After passing the embedded pipes 2 through all the tunnels, the auger expansion-type tunnel excavating device 8 is moved along the groove 6, and the same action is repeated at other place. As a result, the embedded pipes 2 under the building structure 1 can be executed without damaging the building structure 1.