08/0169 Information Response to DERM - 71 Seaview Terrace Sunshine Beach · 132008.169

                                                                      TODCONS


    7.2    Lateral Resistance

           The lateral resistance to wind, earthquake and lateral soil forces will be
           provided by reinforced concrete and blockwork bracing walls, and a
           combined column/beam framing action and contiguous piling. Raking
           piles will be designed and certified by others (RPEQ Engineers) based on
           their own design-construction methods and shall have the capacity to
           safely resist horizontal loads from wind, earthquake and lateral soil
           pressure, with a permanent factor of safety against sliding exceeding 2.0.

           The braced contiguous piled footings will also certainly add significantly
           to the slope stability of the adjacent property on the southern boundary, by
           interrupting any potential surface slippage towards the north-east and east.

     7.3   Drainage

           As with the main house structure the areas behind the contiguous piled
           retaining wall will be drained by the use of vertical perforated "wick"
           drains at approximately 4m centres, connected through the piled wall just
           at the underside of the floor slab level.

           The design will include 100mm agricultural drain lines in gravel and
           geotextile at the bottom of retaining walls and under all floor slabs.

           Properly designed temporary and permanent drainage and silt collection
           must be installed to avoid the risk of surface sands washing off site, during
           and after construction of the project.




BARRY GEORGE - MIE(Aust). CPEng. NPER3, RPEQ 1924
TOD CONSULTING ENGINEERS




                                                                                      16