240608Opw-b

DESIGN NOTES:
                                                                                                       BACKFILL AND DRAINAGE
1. RETAINING WALL FOUNDATIONS DESIGNED IN ACCORDANCE WITH                                              1. Backfill should not be placed behind the wall until at least
LINDSAY CONSULTING P/L SITE CLASSIFICATION REPORT 240608.                                                 seven days after grouting.
2. RETAINING WALL IS NOT DESIGNED TO SUPPORT LOAD FROM ANY                                             2. Backfill should be placed and compacted to 95% standard compaction
FUTURE FENCES. FENCE FOUNDATIONS TO BE CONSTRUCTED NOT                                                     in layers not more than 200mm deep. The degree and method of
IMPACT RETAINING WALL. OWNER TO CONFIRM WITH ENGINEER IF                                                                                                                                        LINDSAY CONSULTING PTY
                                                                                                                                                                                                  LINDSAY CONSULTING PTY LTD




REQUIRED.
                                                                                                           compaction depends on the proposed use of the backfill area.                                            LTD

3. BUILDER TO ENSURE THAT THE WALL WILL NOT BE SUBJECTED TO                                            3. The drainage system should be installed progressively as the
ADDITIONAL LOADS OUTSIDE OF THE WALL DESIGN PROVIDED.                                                     backfill rises.                                                                                                                       RPEQ 4928

4. ANY NEW FOUNDATIONS FOR ADJACENT STRUCTURES SHALL BE                                                4. The drainage system behind the wall should be connected to the
                                                                                                                                                                                                OFF. 2C/82 PARKER STREET, MAROOCHYDORE        PH 54 792 118

300mm MIN BELOW THE BASE OF THE RETAINING WALL.                                                                                                                                                THIS DRAWING REMAINS THE PROPERTY OF
5. PIERS MAY REQUIRE THE BUILDER TO ADOPT SUITABLE MEASURES
                                                                                                          main drainage system.
                                                                                                                                                                                               LINDSAY CONSULTING PTY LTD AND IS FOR
AGAINST ANY POTENTIAL WATER SEEPAGE IN HOLES.                                                                                                                                                    THE SOLE USE OF THE CLIENT. NO PART
6. Fc = 25MPa MIN STRENGTH. Fsy = 500MPa. GROUT FILL = 20MPa MIN.                                                                                                                              MAY BE USED IN PART OR WHOLE WITHOUT
7. N12 TENSILE LAP LENGTH 600mm MIN. N16 TENSILE LAP LENGTH                                                                                                                                       PRIOR EXPRESS WRITTEN CONSENT OF
800mm MIN.                                                                                                                                                                                           LINDSAY CONSULTING PTY LTD
8. LINDSAY CONSULTING WAS NOT ENGAGED TO PERFORM FLOOD
CHECKS OR PROVIDE A GEOTECHNICAL STABILITY REPORT FOR THE                                                                                                                                      CLIENT AND PROJECT DESCRIPTION
SUBJECT SITE.
                                                                                                                                                                                                 GJ GARDNER NOOSA
                                                                                                                                                                                                 PROPOSED RESIDENTIAL
                                                                                                                                                                                                 DEVELOPMENT
                                                                                                                                                                                                 4-6 HAY STREET,
                                                                                                                                                                                                 TEWANTIN
                                                                                                                   Spoon drain or similar to free draining
                                                                                                                   outlet by builder


                                                                                                                                                                                               DRAWING TITLE
                                                                                                                   Flat - 2.5kPa Live Surcharge                                                RETAINING WALL
                                                                                                                                                                                               DETAILS




                                                                                                                                                             Line
              190 Series Blockwork
                                                     H - 1400mm Max Retaining Height




        N12 Vertical bars @ 400 crs




                                                                                                                                                             tion
                                                                                                                       Well Compacted
                                                                                                           600mm

      N12 Horizontal bars @ 400 crs




                                                                                                                                                          ava
                                                                                                                       Site Clay
                                                                                                                                                                                               SCALES




                                                                                                                                                       Exc
                                                                                                                                                         y
                                                                                                                                                     orar
                                                                                                                                                      p
      N12 Starters / Footing Bars @



                                                                                                                                                  Tem
      400 crs. 60mm min rear cover.                                                                                                                          Approved waterproofing
                     600mm min lap                                                                                                                           membrane

                    Cleanout block
                                                                                                     200                                                  Free draining granular backfill
                 PROVIDE WEEPHOLES
                 WHERE REQUIRED
                                                                                                                                                                                               SURVEY DATUM
                                                                                       110
                                                                                                                                                                                                .
                                                                                         240
                                                                                                                                         200




                                                                                                                                                             Dia 100 Agg drain to free
                       N16 Key/Toe bars @ 400 crs                                                                                                            draining outlet.
                                                                                                                                                                                               ASSOCIATED CONSULTANTS
        H    B                                                                                                                                               Filter cloth to agg drain and
                                                                                                                                         200




                                                                                                                                                             granular backfill
      800 800                                                                                                                                                                                    REPRODUCED AND
      1000 800                                                                                                                                                                                   UPDATED FROM
                                                                                             300
      1200 1000                                                                                                                                N12 Longitudinal bars
                                                                                                                                                                                                 CONTOUR CONSULTING
      1400 1200                                                                                    B - 1200mm Max                              @ 300 crs
                                                                                                                                                                                                 ENGINEERS APPROVED
                         N12 Key Longitudinal bars                                                                                                                                               OPW DRAWINGS FOR
                                        @ 300 crs
                                                                                                               N12 bar through
                                                                                                               top of screw pile
                                                                                                                                                                                                 PROJECT 3045 FOR OPW
                                                                                                               (600 mm long)                                                                     22/0218 APPROVED 31
                                  Screw piles 100 kN SWL                                                                                                                                         OCT 2022
                                    at 2.0m MAX spacings



                                                                                                                                                                                              REVISION LIST
                                                                                                                                                                                              A ORIGINAL ISSUE                                     15/10/24
                                                                                                                                                                                              B OVERLAND FLOW PATHS ADDED                          18/12/24


                                      RETAINING WALL DETAIL - Up to 1.4m High
                                                                                                     NOT TO SCALE




                                                                                                                                                                                             Computer File
                                                                                                                                                                                                                               240608OW.DWG
                                                                                                                                                                                             DRAWING NUMBER                                     SHEET   REV.

                                                                                                                                                                                                                                24-0608-C12      12 B