HomeMy WebLinkAboutWWP2703627.8HMA.. 3" COMPACTED DEPTH PG 64-22
GRAVEL TOP COURSE. 6"
COMPACTED DEPTH (MIN.)
r
t NATIVE SUBGRADE. TRENCH
BACKFILL OR STRUCTURAL
BACKFILL. PROOF ROLL PRIOR TO
2 LAYERS OF MIRAFI 50OX GRAVEL PLACEMENT.
ASPHALT PAVEMENT SURFACE DETAIL cot
FOR DISTURBED AREA
NOT TO SCALE
1 J2:1 MIN. THRUST BLOCKING
1:1 MAX.
SHEET PLASTIC
BARRIER ON
ALL BLOCKING
UNDISTURBED SOIL
PIPE
H = Dmin
H<=L<=2H
BEARING AREA = H X L
1
1 i2
H
l
Dmin
FIGI)RE 1
CONSTRAINTS
1. SOIL CONDITIONS AND BEARING CHARACTERISTICS ARE
TO BE DETERMINED BY THE CITY.
2. THIS STANDARD DETAIL IS FOR HORIZONTAL THRUST
RESTRAINT ONLY,
3. CONCRETE BLOCKING SHALL BE PER APWA SPECIFICATION
7-11.3(13)1984.
4. CONCRETE THRUST BLOCKING FOR FITTINGS LARGER THAN
16" SHALL BE AS SHOWN ON THE PROJECT PLANS.
5. MAINTAIN 18" MINIMUM GROUND COVER OVER THE TOP
OF ALL CONCRETE BLOCKING.
6. WRAP FITTINGS WITH 8 mil THICK POLYETHYLENE
SHEETING PRIOR TO POURING CONCRETE.
PROCEDURE
1. DETERMINE BEARING FACTOR IN TABLE 1 CORRESPONDING TO
APPROPRIATE PIPE SIZE AND TYPE OF FITTING.
2. MULTIPLY THE BEARING FACTOR DETERMINED IN TABLE 1 BY THE
MULTIPLICATION FACTOR IN TABLE 2 FOR THE APPROPRIATE
SOIL CLASSIFICATION.
THE RESULT IS THE REQUIRED AREA OF CONCRETE (IN
SQ. FT.) WHICH MUST BEAR AGAINST UNDISTURBED SOIL.
3. USING TABLE 3 LOCATE THE MINIMUM DEPTH OF CONCRETE
(Dmin) CORRESPONDING TO THE REQUIRED BEARING
AREA.
4. USING Dmin. THE HEIGHTAND LENGTH OF THE THRUST
BLOCKING CAN BE DETERMINEQFROM THE DIMENSION
RELATIONSHIPS ILLUSTRATED IN FIGURE 1 AND DESCRIBED
BELOW:
A. "H" EQUALS "D"
B. MAX. "L" EQUALS 2 X "H"
C. MIN. "L" EQUALS "H"
90` BEND
11 114° BEND
CROSS Wl SMALLER
SIZE OUTLET
45" BEND
TEE
- Li
22 1 "2BEND
CROSS Wl BLIND
FLANGE
TEES
TEST DEAD 90' 450 22112� 111/40
'SIZE PRESSURE ENDS BEND BEND BEND BEND
I 3 300 2.25 2.25 2.25 2.25 2.25
4
300
€ 2.25
2.25
125
2.25
2.25
6
300
2.83
4.00
2.25
2.25
2.25
8
300
5.00
7.11
3.85
2.25
2.25
10
300
7.86
11.11
6.00
3.06
2.25
12
300
11.31
16,00
8.66
4.41
2.25
14
250
12.83
1 18.14
9.82
5.00
2.51
16
225
15,08
1 21.33
11.54
5.88
2.96
HORIZONTAL THRUST BLOCK 2®2
NOT „ALE-------------- CO2
Ct SC
" 2.25 EASED UN GEUME I RIG FAG I UKS
BEARING FACTOR
TABLE 1
SOIL CONDITION MULTIPLICATION FACTOR
*MUCK: PEAT. etc.
SOFT CLAY
3.0
SAND
1.5
SAND AND GRAVEL
1.0
SAND AND GRAVEL CEMENTED Wi CLAY
0.75
HARD SHALE
0.30
THRUST BLOCKING SHALL BE DESIGNED BY ENGINEER
1V [ TL TIPLICA TION FA CTOR
TABLE 2
I REQ'D BEARING
AREA (SQ. FT.)
MINIMUM DEPTH
DMIN
r
2.25 MIN.- 5,0
1,5'
5.01 -10.0
2.25'
10.01- 15.0
3.0'
15.01 - 30.0
4.0'
30.01- 40.0
4.5'
I 40.01 - 50.0
5ff
50.01 - 70.0
&0'
DUMP STRAP
1" REBAR FOR BAG
REMOVAL FROM INLET,
TYPICAL BOTH SIDES
SILT SACK -
lil ELKi ki a&11
DUMPS
1
_ INLET OR
CATCH BASIN
3" WELDED SS
GOOSFNFrK
GROUND
ELEVATION
24"
f
TRANSITION TO
PVC BELOW
GRADE
E WITH
(SCREEN
2' x 2' x 0.5' THICK CONCRETE
PAD W./ WIRE MESH
REINFORCEMENT
WET WELL PASSIVE VENT DETAILS 204
T NATIVE SOIL
19a2Ro:1
NOT TO SCALE C06
aH DUMP
kPS
WIDE (MIN) STAINLES
STEEL BAND, TYR OF 2
~ TIGHTEN AS REQUIRES
s MODEL Wl CALPICO
WRAP AROUND END
SEALS OR EQUAL
SECTION
.EL CASING
1ICO" MODEL
S CASING SPACER
3 PER EACH
TH OF PIPE
NOTES:
1. CASING SPACERS SHALL BE MANUFACTURED GALVANIZED OR STAINLESS STEEL, SIZED FOR THE TYPE OF PIPE AND CASING
SIZE PER THE MANUFACTURER'S RECOMMENDATION.
2. CASING TO BE SIZED TO PROVIDE MINIMUM 2" CLEARANCE FOR THE TYPE OF JOIN APPROVED BY THE CITY ENGINEER.
3. PIPE JOINTS WITHIN CASING TO BE RESTRAINED JOIN AS APPROVED BY THE CITY ENGINEER.
FOR PIPES 12" AND SMALLER, 2 SPACERS PER JOINT OF 13' SEWER.
5. MINIMUM �3" THICK STEEL CASINGS SHALL BE USED.
6. STEEL CASING UNDER RAIL ROAD TRACKS IS EXISTING. INSTALL PROPOSED FORCE MAIN IN EXISTING CASING PER THIS DETAIL,
SURFACE FINISH PER PLAN
VARIES,
T MINIMUM
2®7 CASING SPACER
CO2 ' NJOT TO SCALE
HMA SURFACING PER DETAIL THIS SHEET
a c
S 362708
TRENCH LIMITS
SANITARY SEWER FORCE MAIN
(
"2" MIN
I
PIPE ID + 30" 1
�- WSDOT 2-09.4
NATIVE SOIL CONDITIONS UNKNOWN, CONTRACTOR
SHALL BE RESPONSIBLE FOR TRENCH STABILITY
AND SAFETY.
-\ BACKFILL AND MECHANICALLY COMPACT (6" LIFTS)
TRENCH BACKFILL TO 95% OF THE MODIFIED PROCTOR.
\ TRACER 7 LOCATOR TAPE
PIPE ZONE BEDDING AND BACKFILL
PER DETAIL THIS SHEET
C06
EXCAVATE UNSUITABLE MATERIAL AND PROVIDE
FOUNDATION MATERIAL CLASS A CONFORMING TO
WSDOT SS 9-03.17 COMPACTED TO A UNIFORMLY
DENSE AND UNYIELDING FOUNDATION. WHEN
UNSUITABLE MATERIAL IS ENCOUNTERED AND AS
DIRECTED BY THE ENGINEER
FORCE MAIN TRENCH DETAIL co$
NOT TO SCALE
RECORD DRAWING
REVISED TO CONFORM
TO CONSTRUC ON RECORDS
Rk ENGINEERING INC. DATE
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DRAWING IS FULL SCALE WHEN
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DWG NO.: SHEET NO.
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