| 摘要 |
PURPOSE:To enable workers to operate without the needs to come into a trench by a method in which panel pitch bars are laid in the longitudinal direction of the trench between water-pressure jacks laid tensely between sheathing panels and guide panel is inserted between the sheathing panels in the longitudinal direction of the trench. CONSTITUTION:A water-pressure jack 12 and a panel fixing bar 20 are tensely laid on the inside walls of an excavated trench, and sheathing panels 10 facing each other are erected. In the same way, sheathing panels 10 facing each other are erected in the longitudinal direction of the trench. A panel pitch-holding bar 30 is laid between the water-pressure jacks 12 in the longitudinal direction of the trench, coupling metals 27 on both ends of the guide panel 26 are penetrated into the coupling trench 15 of the sheathing panel 10, and the guide panel 26 is tensely laid between the side ends of the sheathing panel 10. A light weight steel sheet pile 29 is then inserted into a guide frame 28 provided to the guide panel 26, and back-filling is made in the apertures between the excavated trench, the sheathing panel 10, and the light weight steel sheet pile 29. |
