1 Dam Remediation by Anchors and Cut-Offs: A ... - Geosystems, LP

More documents

Recommendations

Info

Figure 9. Diaphragm wall panel construction sequence. 18
Figure 10. Construction sequence for a secant cut-off wall (Bruce and Dugnani, 1995). 3.2 Case History Data Table 5 provides summary data on 18 projects conducted in North America (all but one in the U.S.), featuring seepage remediation by concrete cut-off walls. Details from a further 3 projects (Sam Rayburn, TX; W.F. George, AL, Phase 1; and Stewart Bridge, NY) remain to be acquired. Table 6 summarizes the size of the cut-offs and the total square footage installed to date. It may be observed that the cumulative value of these 18 projects, conducted over a period of 32 years, could well be matched on a few USACE dams alone over the next 5 years. Figure 11 shows how these 18 projects have been distributed over the years and the different techniques and contractors involved. There is a small, but highly qualified, group of specialty contractors capable of doing such work. 19
Page 1 and 2: Dam Remediation by Anchors and Cut-
Page 3 and 4: technology (and, presumably, a pres
Page 5 and 6: Table 2. Tasks and responsibilities
Page 7 and 8: elongations disagree by more than 1
Page 9 and 10: Figure 1. Rock Anchor Components (P
Page 11 and 12: Figure 2. Class I Protection - Enca
Page 13 and 14: technical papers have been compiled
Page 15 and 16: Histogram of US Dam Construction (1
Page 17: Figure 7. Geographic distribution o
Page 21 and 22: DAM NAME AND YEAR OF REMEDIATION 5.
Page 23 and 24: DAM NAME AND YEAR OF REMEDIATION 13
Page 25 and 26: ICOS = TreviICOS B-P = Bencor-Petri
Page 27 and 28: (v) The deepest panel walls have be
Page 29 and 30: included in the specialty contracto
Page 31 and 32: information on past projects has, h
Page 33 and 34: Dewey, R. (1988). “Installation o
Page 35: Roberts, D.L., and D. Ho. (1991).

1 Dam Remediation by Anchors and Cut-Offs: A ... - Geosystems, LP

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?