OPW1/0370 Operational Works Application for Prescribed Tidal Works · OPW14/0370

 

GENERAL NOTES:

1. DESIGN CRITERIA FOR THE WALL ARE BASED ON THE FOLLOWING:
— DESIGN LIFE OF NEW ROCK PROTECTION = 50 YEARS.

Botts CRAWING SHALL BE READ IN CONJUNCTION WITH ALL OTHER
DRAWINGS AND SPECIFICATIONS AND WITH SUCH OTHER WRITTEN
INSTRUCTIONS

AS MAY BE ISSUED DURING THE COURSE OF THE CONSTRUCTION.
DISCREPANCIES AND VARIATIONS SHALL BE REFERRED TO THE
SUPERINTENDENT

BEFORE PROCEEDING WITH THE WORK.

3. DURING CONSTRUCTION THE CONTRACTOR (AS PRINCIPAL
CONTRACTOR) SHALL BE RESPONSIBLE FOR MAINTAINING THE
STRUCTURE IN A STABLE CONDITION AND ENSURING NO PART
SHALL BE DAMAGED UNDER CONSTRUCTION ACTIVITIES.

4, THE CONTRACTOR SHALL BE RESPONSIBLE FOR THE
IMPLEMENTATION OF EROSION AND SEDIMENTATION CONTROL
MEASURES DURING CONSTRUCTION.

5. ON COMPLETION OF WORKS THE SITE (INCLUDING ALL ACCESS
ROUTES) SHALL BE LEFT IN A CLEAN AND TIDY CONDITION TO THE
SATISFACTION OF THE SUPERINTENDENT,

6. WORKMANSHIP AND MATERIALS TO BE IN ACCORDANCE WITH THE
RELEVANT SAA CODES EXCEPT WHERE VARIED BY THE CONTRACT
DOCUMENTS.

7, ALL LEVELS ARE EXPRESSED IN METRES TO A CONTROLLED
DATUM (REFER LEVEL DATUM NOTE). ALL DIMENSIONS RELEVANT TO
THE SETTING OUT OF THE WORK SHALL BE VERIFIED BY THE
CONTRACTOR BEFORE CONSTRUCTION PROCEEDS,

8. THE APPROVAL OF A SUBSTITUTION SHALL BE SOUGHT FROM
THE SUPERINTENDENT BEFORE INCORPORATION INTO THE WORK.

9, CONTRACTOR TO LOCATE ALL SERVICES PRIOR TO
COMMENCEMENT OF WORK.

ARMOUR ROCK

CLASS & GRADING

1. ROCKS SHALL BE GRADED VISUALLY.

2. NOT MORE THAN 5% OF ROCKS SHALL HAVE A RATIO OF
MAXIMUM DIMENSION TO MINIMUM DIMENSION OF GREATER THAN

3 Rocks SHALL COMPLY WITH THE FOLLOWING GRADING BASED ON
ROCK COUNTS:
~ <0.45 DNSO MIN
~ <1.0 DNS5O MEAN
— >1.55 DNSO MAX
UNLESS WHEN PLACED IN THE WORKS THE GENERAL ROCK
RADING IN THE AREA OF INDIVIDUAL LARGE ROCKS IS INCREASED
SUCH THAT AT LEAST 50% OF THE SURROUNDING ROCKS ARE
GREATER THAN 0.6XDN OF THE LARGER ROCK),
WHERE ROCKS ARE MEASURED BY DN= SUM GF 3 MUTUALLY
PERPENDICULAR
DIMENSIONS.
4, THE SIZES OF THE ARMOUR ROCK TO BE USED IN THE WORKS
ARE SET OUT
BELOW:
ONSO

go
100
RELATIVE DENSITY OFOCK SHALL BE A MINIMUM OF 2.6 (SATURATED

SURFACE DRY)
5. EXISTING LARGER ROCK MAY BE UTILISED IF OF SUITABLE
QUALITY.

6. MATERIAL SHALL BE PLACED SO THAT THE DISTRIBUTION OFOCKS
WITHIN ANY 5M X 5M AREA CONFORMS WITH THE ROCK COUNT
GRADING BASED ON DNSO.

7. SATURATED SURFACE DRY — LARGER SAMPLES ARE SATURATED
TO FILL ALL ACCESSIBLE VOIDS BUT THE OUTER SURFACE IS DRY.

GEQTEXTILE

1. GEOTEXTILE FABRIC SHALL BE ELCOMAX 6Q0R (NON WOVEN OR
SUITABLE EQUIVALENT)

2, GECTEXTILE SHALL BE INSTALLED WITH SOOMM OVERLAP AT

SONSTRUCTION
ROCK PLACEMENT

1. THE CONTRACTOR SHALL SUPPLY A METHOD STATEMENT
DETAILING ITS PROPOSED METHOD OFOCK PLACEMENT AND
CONTROL TO ENSURE THE REMEDIATION MEETS THE SPECIFIED
STANDARDS.

2. ARMOUR ROCK IS TO BE PLACED ON THE GEOTEXTILE
AT THE TOE OF THE WALL IN TWO LAYERS TO THE MINIMUM
THICKNESS SHOWN ON THE DRAWINGS.

3. THE CONTRACTOR WILL BE SOLELY RESPONSIBLE FOR
DETERMINING SATISFACTORY PLACEMENT TECHNIQUES TO
ENSURE GEOTEXTILE IS NOT DAMAGED.

4. THE METHOD OF PLACING SHALL PRODUCE A DENSE,
EVENLY DISTRIBUTED ROCK BLANKET WITH A MINIMUM OF VOIDS
AND SHALL ENSURE THE MAXIMUM
INTERLOCK BETWEEN ADJACENT ROCKS.

5. INDIVIDUAL ROCKS SHALL BE MOVED TO A NON—MOVING
STABLE POSITION IN CONTACT WITH THREE OTHER ROCKS.

8. TOLERANCE AND FINISH LEVELS:
~ THE ARMOUR ROCK THICKNESS SHALL BE WITHIN —O00 MM
AND +200 MM OF THE SPECIFIED THICKNESS AT ALL
LOCATIONS.
=- THE SLOPE OF THE ROCK LAYER SHALL NOT VARY BY MORE
THAN 10% FROM THE SPECIFIED SLOPE.

HOLD POINTS

THE FOLLOWING HOLD POINTS FOR INSPECTION SHALL APPLY
BEFORE PROCEEDING WITH EACH STAGE OF CONSTRUCTION:

1. TRAFFIC CONTROL, ENVIRONMENTAL CONTROLS, WHS
CONTROLS.

2. REMOVAL OF EXISTING CONCRETE AND ROCK

2.1. SUPPORT TO EXISTING PAVEMENT EDGE

2.2. OTHERWISE AS DIRECTED

QUALITY OF ARMOUR ROCK MATERIAL

1, ARMOUR ROCK SHALL COMPRISE INDIVIDUAL STONE WHICH
IS EITHER IGNEOUS OR METAMORPHIC IN ORIGIN AND WHICH IS
DENSE, SOUND, RESISTANT TO ABRASION AND FREE OF
CRACKS, CLEAVAGE PLANES, SEAMS AND OTHER
DEFECTS WHICH WOULD RESULT IN BREAKDOWN OF THE STONE
IN THE ENVIRONMENT OF THE SITE OF THE WORKS.

2. ANY STONE WHICH WILL UNDERGO PHYSICAL CHANGE
CAUSING SPALLING, WEATHERING OR FRACTURING IN THE
ENVIRONMENT OF THE SITE WILL NOT BE ACCEPTABLE.

3. THE CONTRACTOR SHALL SUPPLY TESTING BY A SUITABLY
EXPERIENCED PETROLOGIST OR GEOTECHNICAL ENGINEER WHO
HAS OBTAINED REPRESENTATIVE SAMPLES AND CARRIED OUT
TESTING TO DETERMINE THE MINERAL COMPOSITION AND SUCH
OTHER TESTS HE MAY DEEM NECESSARY TO DETERMINE THE
SUITABILITY OF THE ROCK.

4. THESE TESTS MUST INCLUDE THOSE LISTED BELOW,
IDENTIFIED AS (A) TO (B) INCLUSIVE, TOGETHER WITH THE
DETERMINATION AND DISTRIBUTION OF DELETERIOUS SECONDARY
MINERALS FOR ALL BASIC IGNEOUS ROCKS. FULL DETAILS OF
THIS SAMPLING AND TESTING ARE TO BE INCLUDED IN THE
REPORT.

5. ALL ARMOUR ROCK TO BE INCORPORATED IN THE WORKS
SHALL COMPLY WITH THE FOLLOWING TEST REQUIREMENTS AND
BE TESTED AT NATA ACCREDITED LABORATORY.

A) LOS ANGELES ABRASION TEST
FOR SPECIMENS TO COMPLY GRADING OF AS 1141~1980
SECTION 23, THE LOSS WHEN TESTED IN ACCORDANCE WITH
THE REQUIREMENTS OF THAT STANDARD SHALL NOT EXCEED
20%

B)_DENSITY
THE PARTICLES DENSITY OF THE 37.SMM TO 63MM FRACTION
OF A CRUSHED SAMPLE EXPRESSED ON A DRY BASIS SHALL
NOT BE LESS THAN 2 600 KG/M’ AND THE WATER
ABSORPTION SHALL NOT EXCEED 3% WHEN DETERMINED BY
THE RELEVANT METHODS DESCRIBED IN AS 1141-1980,
SECTION 6 OR AS4133.2

 

 

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Rv) DATE REVISIONS REC. j/APPR.] CHECKED] CRAIG ELD! Tewantn (07) 5320.650% 07} 83208601

 

 

 

 

 

WILLIAM STREET, NOOSAVILLE

PATHWAY, RAILING AND
REVETMENT WALL REHABILITATION

GENERAL NOTES

Project Number

009

 

 

Orawing Sheet No.

09 Rv.