E 06/19

D 06/18

[ 05/17

B 09/12

A 04/09

REV DATE

TYPICAL STEP IRON LOCATION (SEE NOTE 21

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SEEPAGE WEEPHOLE FILLED WITH 40mm AGGREGATE.

REFER TO TABLE B

REVIEW COMPLETED & DRAFTING AMENDMENTS MADE

AGGREGATE SIZE AMENDED FROM 20mm TO 40mm

GULLY GRATE DETAILS REMOVED & DRAFTING AMENDMENTS

CITY OF KWINANA LOGO ADDED

ADOPTED BY TOWN OF KWINANA

DESCRIPTION

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1500

JUNCTION PIT PLAN NTS

SECTION-A NTS

80mm MIN DRY PACK MORTAR GROUT INSIDE AND OUT AT BROKEN CONCRETE AREAS

STANDARD REINFORCED CONCRETE MANHOLE COVER AND SURROUND

80mm DRY PACK MORT AR ALL ROUND

FOR LINER SIZE REFER TO TABLE A

80mm DRY PACK MORT AR ALL AROUND

15MPa INSITU MASS CONCRETE BASE OR PRECAST BASE 150mm THICK

AS SOCIA TE CONSULT ANT

JM

JM

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DRAWN

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12 MAX./110 MIN. SLOPE FOR BENCHING. CEMENT TO BE 3 PARTS FINE CRUSHED

ROCK & 1 PART CEMENT

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BENCHED PIT - WET CONDITIONS N.T.S

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STANDARD REINFORCED CONCRETE MANHOLE COVER AND SURROUND

80 mm DRY PACK MORT AR ALL ROUND

STEP IRONs (SEE NOTE 4)

FOR PIT DIAMETER REFER TO TABLE A

REFER TO NOTE 3

80mm DRY PACK MORT AR ALL ROUND

15MPa INSITU MASS CONCRETE BASE OR PRECAST BASE 150mm THICK

STANDARD REINFORCED CONCRETE MANHOLE COVER ANO SURROUND

80 mm DRY PACK MORTAR ALL ROUND

FOR PIT DIAMETER REFER TO TABLE A

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SEEPAGE WEEPHOLE FILLED WITH 40mm AGGREGATE.

REFER TO TABLE B ~ SN s,,e,e'°c Im.

SECTION-B NTS

rcity of

Kw1nana ~

REFER NOTE 6

PROJECT

PHONE

FAX

EMAIL

WEB,

STANDARD DETAILS

TYPICAL JUNCTION PIT (08) 9439 0200 ADDRESS Cnr Gilmore Avenue and

Sulphur Road, (08) 9439 0222

ad min@kwin ana. w a.gov. au Kwinana WA 6167

http:// ww w .kwi nana. w a. gov .au

TABLE A DRAINAGE PIT LINER SIZE

NOM. LINER PIPE SIZE SIZE MAX. LINER TYPE (mm) (mm)

01050 0450 CONCRETE ¢1200 ¢600 CONCRETE

¢1500 ¢750 CONCRETE ¢1800 ¢900 CONCRETE

FOR PIPES ¢1200 AND LARGER INSTALL A CUSTOM CHAMBER TO SUIT.

TABLE B DRAINAGE PIT BASE SOAKAGE HOLE

SIZE

LINER SIZE MIN. SOAKHOLE DIAMETER

(mm) (mm)

10 so 600

12 00 600

15 00 900

18 00 120 0

NOTES:

CONCRETE TO BE 20mm NOM AGGREGATE AND HAVE A MINIMUM COMPRESSIVE STRENGTH AT 28 DAYS OF 20MPa FOR INSITU BASE AND 40MPa FOR PRECAST UNITS

2. ALL COMPONENTS SHALL BE DESIGNED TO ACCEPT LOADINGS IN ACCORDANCE WITH AS3725 AND MANUFACTURER'S GUIDELINES.

3 IN HIGH GROUNDWATER AREAS THE BASE AND PIT MUST BE SEALED AND BENCHED

4 STEP IRONS TO BE INSTALLED IN PITS WHERE THE DEPTH FROM COVER TO TOP OF BASE EXCEEDS 600mm

5 SUBGRADE TO BASE TO BE COMPACTED TO 95% M.M.D.D PRIOR TO PLACING OF BASE

6 BACKFILL SURROUNDING PIT TO BE TO 95% M.M.D.D

7. ALL PITS TO HAVE WEEP HOLE IN ACCORDANCE WITH TABLE B, UNLESS IN HIGH GROUND WATER AREAS, SEE NOTE 3.

8 A MAXIMUM OF THREE PIPE OPENINGS ARE ALLOWED IN ANY ONE JUNCTION PIT. A MINIMUM WALL WIDTH OF 250mm IS ALLOWED BETWEEN HOLES CUT FOR PIPE OPENINGS.

9 ALL PITS TO BE TRAPPED WITH MINIMUM 300mm DEPTH BELOW PIPE INVERT

10 PIPES TO BE FINISHED FLUSH WITH INSIDE OF LINER AND MADE GOOD WITH MORTAR

11 MORT AR TO BE 3 1 SAND[EMENT MIXTURE

SCALE DRAWING TITLE N.T.S A1 STANDARD DESIGN CHE K DETAILS s.s R.N TYPICAL JUNCTION PIT

DRAWN DA TE J.M 05 17

AUTHORISED MANAGER ENGINEERING SERVICES FILE NO. ENG03 DRAWING NUMBER

R.NAJAFZADEH STD-D02

REVISION

E