| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an installation method for temporary pipe, which facilitates removal of a temporary pipe. <P>SOLUTION: The method includes: drilling an excavation groove B for installation of a temporary pipe A; then placing the temporary pipe on a bottom surface b1 of the excavation groove B; laying a sheet body 1 having suspending connection parts 12 provided at least four corner side edges to the temporary pipe within the groove so as to closely fit and cover the temporary pipe and also cover a lower portion of a groove side surface b2 of the excavation groove; and filling back the excavation groove with earth and sand. When digging is performed to remove the temporary pipe, machine digging is performed to the vicinity of the point where the temporary pipe is buried, and the sheet body is lifted up together with the earth and sand by an excavation machine after the machine digging, whereby the remaining back-filling earth is taken out of the excavation groove at once. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
