design, manufacture and microtunnel construction ... - nw pipe
TRANSCRIPT
![Page 1: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/1.jpg)
1Revitalizing Global Underground Utility InfrastructureRevitalizing Global Underground Utility Infrastructure
Design, Manufacture and Microtunnel Construction of the 108-
inch Diameter Low Level Outlet at NYC DEP Gilboa Dam
Everette Knight, PE/Project Engineer - HazenRichard Mielke, PE/Director of Engineering,
Permalok© A Northwest Pipe Company
![Page 2: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/2.jpg)
2Revitalizing Global Underground Utility Infrastructure
Project History and Background
![Page 3: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/3.jpg)
3Revitalizing Global Underground Utility Infrastructure
Project History and Background
![Page 4: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/4.jpg)
4Revitalizing Global Underground Utility Infrastructure
Project History and Background
![Page 5: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/5.jpg)
5Revitalizing Global Underground Utility Infrastructure
Project History and Background
![Page 6: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/6.jpg)
6Revitalizing Global Underground Utility Infrastructure
• Capacity to evacuate 90% of the reservoir storage volume under average inflowconditions; that is draw down to El 1053, in 4 months or less.
• Capacity to maintain the reservoir in a substantially dewatered state under averageinflow conditions (El 1053).
• An invert elevation for the lowest drain in the range of elevation 980-1000.• Maximum daily drawdown rates in the range of 1 to 2 feet per day, unless higher
rates are deemed to be required by extreme emergencies.
Regulatory and Design Criteria
![Page 7: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/7.jpg)
7Revitalizing Global Underground Utility Infrastructure
HYDROGRAPHSSCHOHARIE RESERVOIR
ROUTING WITH AVERAGE DAILY INFLOW108-INCH DIAMETER TUNNEL OUTLET - 2230 FT. LENGTH
TERMINAL STRUCTURE OUTFLOW AT EL. 967
0
500
1000
1500
2000
2500
31-Dec 31-Jan 29-Feb 31-Mar 30-Apr 31-May 30-Jun 31-Jul 31-Aug 30-Sep 31-Oct 30-Nov 31-Dec
TIME (days)
DIS
CH
AR
GE
(cfs
)
980
1000
1020
1040
1060
1080
1100
1120
1140
STA
GE
(FEE
T)
INFLOWOUTFLOWSTAGE
RESERVOIR 90%DRAINED
(ELEV. 1053)
PEAK SPRING STAGEEL. 1054.2
RESERVOIR EMPTYEL. 989
RESERVIOR FULL
EL. 1130
90% DRAINEDIN 19 DAYS
AVG. DAILY INFLOWMAX. 1921 cfs
Hydraulic Modeling
![Page 8: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/8.jpg)
8Revitalizing Global Underground Utility Infrastructure
970.0
990.0
1010.0
1030.0
1050.0
1070.0
1090.0
1110.0
1130.0
00+00 05+00 10+00 15+00 20+00 25+00
Hyd
raul
ic H
ead
(ft.)
Tunnel Station
HYDRAULIC PROFILft.GILBOA DAM LOW-LEVEL OUTLET WITH HYDROPOWERTUNNEL OPERATING AT FULL POOL (EL. 1130)
9'-0" DIAMETER TUNNEL - 2225 FT. LENGTHLOW-LOSS SYSTEM: Ke = 4.1
DUAL 78-INCH FIXED CONE VALVES
Hydraulic Modeling
![Page 9: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/9.jpg)
9Revitalizing Global Underground Utility Infrastructure
Preliminary Design Options
![Page 10: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/10.jpg)
10Revitalizing Global Underground Utility Infrastructure
• Jacking Forces During the Microtunneling• External loads• Internal hydrostatic pressure• Seismic• Pipe joint• Solution = 108” Diameter Permalok steel
casing pipe with 1.375” wall thickness
Steel Tunnel Liner Design
![Page 11: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/11.jpg)
12Revitalizing Global Underground Utility Infrastructure
Manufacture-Permalok Joint
![Page 12: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/12.jpg)
13Revitalizing Global Underground Utility Infrastructure
Permalok is Manufactured per ASTM A1097
![Page 13: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/13.jpg)
15Revitalizing Global Underground Utility Infrastructure
Polyurethane lining per AWWA C222
Miscellaneous Lines Added In the Field For Tunnel Work
Interior Corrosion Control
![Page 14: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/14.jpg)
16Revitalizing Global Underground Utility Infrastructure
Construction
![Page 15: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/15.jpg)
17Revitalizing Global Underground Utility Infrastructure
Construction
![Page 16: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/16.jpg)
18Revitalizing Global Underground Utility Infrastructure
Construction
![Page 17: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/17.jpg)
19Revitalizing Global Underground Utility Infrastructure
To help protect your privacy, PowerPoint has blocked automatic download of this picture.
![Page 18: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/18.jpg)
20Revitalizing Global Underground Utility Infrastructure
![Page 19: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/19.jpg)
21Revitalizing Global Underground Utility InfrastructureRevitalizing Global Underground Utility Infrastructure
Design, Manufacture and Microtunnel Construction of the
108-inch Diameter Low Level Outlet at NYC DEP Gilboa Dam
Everette Knight, PE/Project Engineer – [email protected]
Richard Mielke, PE/Director of Engineering, [email protected]
Permalok© A Northwest Pipe Company
![Page 20: Design, Manufacture and Microtunnel Construction ... - NW Pipe](https://reader036.vdocument.in/reader036/viewer/2022062303/62a5d7efc9401c274b7bd119/html5/thumbnails/20.jpg)
22Revitalizing Global Underground Utility Infrastructure
Design, Manufacture and Microtunnel Construction of the 108-inch Diameter Low
Level Outlet at NYC DEP Galboa DamEverette Knight, PE/Project Engineer - HazenRichard Mielke, PE/Director of Engineering,
Permalok© A Northwest Pipe Company