Grundoram Manual (PDF 1.7MB) - TT Technologies Inc.

F. Support System Track/I-BeamThe accuracy of the installation is dependent upon the first pipes alignment. For thisreason, it is imperative that the pipe has a stable support, in order to remain preciselyaligned throughout the ramming process; this is especially important for longinstallations.Support tracks can be built using an I-beam (girder) (see Fig. 19), a C-channel(see Fig. 20), or a sheet pile (see Fig. 21), for larger pipe sizes you can use (2) I-beams(see Fig. 22). About 3 feet (1 m) should be left between the support track and the faceof the pit, in order to maintain an area for welding the pipe lengths together. Augertracks can also be used as support tracks for pipe ramming operations. Rammingsmaller diameter pipes can often be accomplished without any type of support track.Contact TT Technologies for specific information regarding pipe ramming support andtrack systems.FIG. 19: ALIGNMENT ON I-BEAMFIG. 20: ALIGNMENT ONC-CHANNELFIG. 21: ALIGNMENT ONSHEET PILEFIG. 22: ALIGNMENT ONTWO I-BEAMSThe support track should be secured in concrete, although in special cases, sand orgravel can be used. Recommended steel profiles (support tracks) in relation to variouspipe sizes (see Fig. 23).14 TT TECHNOLOGIES, INC.RECOMMENDATIONS OF STEEL PROFILES FOR ALIGNING STEEL PIPEPipe Outer Diameterin. (mm)I - B e a mP r o f i l e4 (108) 1 x I 80 1 x C 806 (159) 1 x I 80 1 x C 808 (219) 1 x I 80 1 x C 8010 (273) 1 x I 80 1 x C 8012 (323) 1 x I 120 1 x C 120 KD III16 (406) 1 x I 140 1 x C 140 KD III20 (508) 1 x I 160 1 x C 160 KD III24 (609) 1 x I 180 1 x C 18032 (813) 1 x IPE 200 1 x C 220 KD IV40 (1016) 2 x IPE 140 HKD 700/648 (1220) 2 x IPE 18055 (1420) 2 x IPE 200C-ChannelProfileFIG. 23: RECOMMENDATIONS FOR ALIGNING PIPESSheet Pile