HomeMy WebLinkAbout2704-2NOTE:
THE CONT
TO THE C
CALTRANS
OF THE F
OF THE T
OPERATION
FILL MIX
'IPE ENCASEMENT CUNSTRUCTIUN NUTES
1 PRIOR TO COMMENCING ANY WORK FOR THE PROPOSED PIPE ENCASEMENT OPERATION, THE CONTRACTOR SHALL
SUBMIT TO THE CITY ENGINEER DESCRIPTIONS AND DETAILS OF THE PIPE ENCASEMENT INSTALLATION. THE
DETAILS SHALL INCLUDE BUT NOT LIMITED TO THE FOLLOWING: PLACEMENT METHOD, TRENCH SHORING; SUPPORT
BLOCKS AND BRACING TO PREVENT PIPE SHIFTING OR FLOTATION; SAND FILL MIX DESIGN; EQUIPMENT.
2 ALL PIPE STEEL CASING FIELD JOINTS SHALL BE WELDED FULL CIRCUMFERENCE PER CALTRANS STANDARD SPECIFICATIONS.
3 STEEL CASING PIPE SHALL HAVE A MINIMUM YIELD STRENGTH OF 35,000 PSI.
4 SUPPORTING REDWOOD SKIDS SHALL BE PROVIDED AS SHOWN. SKIDS SHALL BE ATTACHED TO CARRIER PIPE BY
STRAPPING STAINLESS STEEL BANDS WITH A STANDARD STRAPPING MACHINE.
5 UPSTREAM AND DOWNSTREAM ELEVATIONS OF CARRIER PIPE SHALL BE VERIFIED PRIOR TO FILLING CASING WITH
AIR BLOWN SAND.
6 CARRIER PIPE SHALL BE AIR PRESSURE TESTED PRIOR TO FILLING CASING WITH SAND.
7 VOIDS BETWEEN CASING AND CARRIER PIPE SHALL BE FILLED WITH SAND IN ALL INSTALLATIONS.
8 EACH END OF PIPE CASING SHALL BE SEALED WITH CONCRETE MORTAR. A SMALL OPENING SHALL BE LEFT FOR
DRAINAGE AT THE BOTTOM OF ,THE DOWNSTREAM SIDE ONLY.
24" DIA. STEEL
3/4>, WIDE STAINLESS
STEEL BAND � CASS�ING PIPE
(2 EA./SKID LENGTH) (3/8 THICK MIN.)
12" DIA. V.C.P.
SANDFILL ANNULAR
SPACING - SEWER BELL (APPROX. 18" O.D.)
77.
120°
�I TYP. 12" LONG X 4" X4"
I=� WIDE REDWOOD SKIDS
2" MIN. CLEARANCE I i --i SHALL BE
BETWEEN SEWER - INSTALLED AT BATH
BELL AND CASING ;�\'%'`' ENDS OF EACH PIPE
� LENGTH.
THICKNESS AS
REQUIRED TO MAINTAIN
RACTOR SHALL SUBMIT DESIGN
ITY ENGINEER AND FLOW LINE (3 EA.)
FOR APPROVAL, DETAILS
OLLOWING IN ADVANCE
HE PROPOSED
ESIGNP PRLAC NTS' STEEL CASING DETAIL "All
METHOD, EQUIPMENT AND LOCATION
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CONCRETE ENCASEMENT 15" VCP SEWER
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DETAIL 111311
N.T.S
3' MAX SIZE NATIVE
MACTED SSX
I3' MIN.
1GI MAX. 1
�* Ikwc SIZE 9TR
V.C.P.. (SIZE PER PLAT)
I1" M;N.
Ow
MAX.
t' MAX. SIZE SELECTED
NATIVE 0WDWG COMPACTED
TO V=
.y.
TYPICAL BEDDING DETAIL
LESS THAN 10" DEEP
A •
RECOPU AYV! '
I
THESC RECORD DRAWMS HAVE PrIEPARED, IN
f-AnT ON THE BASIS OF INTOI' RATION COPAI'ILED AND
FURNISH -0 6Y OTH� R'S. THE, ENG' INEER WILL NOT Ei
R SPONSIBLE FOR /ANY ERRORS OR 01MISs tS WH
HAVE SEEN WCORPORATED WI'TO THE AOOMIS!T8 A
.:,.
2
a
T 1.2(A)
3` MM SIZE NATIVE
COMRACTED 9
r -r-
1/2' CRUSW.D
SIM Mi ."%
PER STD. SPECS.
FOR
L'TI# s
TAME 200-1.2(A)
V.C.P. (SIZE PER PLAPd
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PLOT DATE; 1/la/9,
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1" SIZE SELECTED
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NATIVE
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PLOT DATE; 1/la/9,
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