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20180333 - Proposed Sheet Piling Details · OPW18/0264
Attached to the e-mail Operational Works Application OPW18/0264.
General notes Surcharges notes Sheet pile notes Anchor notes
1. This drawings shall not be used for setout purposes. This 1. The nominal surcharge shall not exceed 10 kPa unless 1. The proposed sheet pile wall acts as a temporary earth- 1. The proposed anchor acts as a temporary-earth retaining
drawings shall be read in conjunction with the design report, otherwise stated. retaining wall. support.
specification, architectural drawings, structural drawings, survey 2. The traffic load on the major road is shall be less than 20 kPa. 2. Vibration monitoring is recommended to record the vibration 2. The proposed location of the anchor is preliminary and it is
drawings, other contract documentation and the requirements 3. MESO shall be notified of any load which is not stated above. level as and when required by the vibration consultant subjected to the approval from the owners of the adjacent
of MESO and/or the relevant authorities. 4. An exclusion zone extending 1m from the facing temporary 3. The sheet pile wall consists of SCH-5-750 sections. property.
2. All dimensions are in mm unless otherwise stated. earth-retaining wall shall be set up. A temporary fencing around 4. All sheet piles shall be interlocking with each other 3. MESO shall be notified before finalizing the design if the
3. All reduced levels are referenced to Australian Height Datum. the perimeter of the exclusion zone is recommended. 5. The steel grade of the sheet pile is S355 according to DIN EN installed anchors are required to be destressed.
4. The dimensions shall not be obtained by scaling the elements. 10249. 4. The anchor adopted consists a 250mm diameter helical screw
5. The contour of the ground level are in reduced level, generated 6. The sheet pile shall installed in accordance to AS2159 - Piling. head connected with a solid steel rod of 40mm diameter.
Excavation notes 7. The project architect and project structural engineer shall take
from the reduced level stated in the topographical plan and 5. All anchors shall be ‘proof load’ tested during installation.
1. Excavation must be carried out in accordance with the into account the stipulated positional tolerance AS2159 - Piling
does not represent the actual ground level on site. 6. Each anchor shall be tensioned to the required ‘proof load’ and
approved plans and excavation certificates, not exceeding the and the estimated deflection of the sheet pile wall.
6. Should any ambiguity, error, omission, discrepancy, holding at that load for at least 15 minutes. Then, the anchor
specified reduced level or depth. No excavation until preceding
inconsistency or other fault exist or seem to exist in the contract shall be relaxed to the specified ‘lock off’ load.
‘Hold Points’ has been released. SCH 5
documents (e.g. design report, drawings), immediately notify in 7. The pressure gauge on the hydraulic jack shall be calibrated.
2. Completion of each stage of construction listed below
writing to the MESO. 8. The typical pressure in PSI for a 30t jack in kN is
constitutes a ‘Hold Point’. At each ‘Hold Point’, certification must
7. All workmanship, materials and tolerance shall be in
be provided by MESO that the conditions listed after each stage
accordance with the requirements of current Australian
of construction below have been met before releasing each
Standard and the bylaws, ordinances or other requirements of
‘Hold Point’.
the relevant building authorities.
a. After construction of the temporary retaining structures, but
8. All proprietary items are to be installed and fixed in accordance
before commencement of excavation
with the manufactures specifications and instructions.
b. After excavation to and installation of the first row of
9. All work is to be carried out in accordance with all Workover Weight /sq.m. (kg/m2) 49.9
supports or anchors
requirements and occupational health and safety act Weight /I.m. (kg/m) 37.4
c. After excavation to and installation of the subsequent row of
regulations. Sectional Area (cm2/m) 63.6
supports or anchors
10. The Head Contractor shall ensure all works are carried out in a Section Modulus (cm3/m) 511
d. After excavation to and construction of the base of the
manner that will not cause any damage to adjacent properties, Moment of Inertia (cm4/m) 6535
excavation
services, roads and/or utilities.
e. After de-stressing and removal of any row of supports or
11. A dilipidation survey of adjacent properties and structures is
anchors
required before commencement of works. Comparison Dewatering notes (if any)
dilipidation survey is required to be undertaken at the 1. The location of dewatering well and effective dewatering radius
completion of the works. Monitoring regime notes
1. The monitoring regime shall be conducted by the Head is indicative only and shall be subject to the assessment and
12. All site records related to the temporary shoring works shall be approval from dewatering consultant.
submitted to MESO on a weekly basis for review. Contractor.
2. Exsisting building and assets that may be affected shall be 2. The Head Contractor shall consult dewatering consultant
13. Please contact MESO should there be any doubts or regarding on dewatering draw down analysis and the effects of
uncertainties observed on site. instrumented and monitored.
3. Head Contractor shall monitor and maintain the monitoring dewatering and provide to MESO.
record and provide to MESO for verification. 3. Appropriate water monitoring and management should be in
Temporary earth-retaining system notes 4. A notice of 24 hours is shall be provided if MESO is required for place to ensure that groundwater assumptions are met.
1. All underground utilities, services, existing structures and site inspection. 4. Appropriate drainage within the site shall be provided to prevent
excavation within a 1:3 (vertical: horizontal) zone of influence 5. Monitoring frequency shall be every week or at each stage of pooling of water.
from the bulk excavation level shall be located by the Head excavation, whichever is earlier/shorter.
Contractor. The Head Contractor is responsible for ensuring 6. There are review levels specified for each wall. The following
that these are either avoided or relocated as appropriate. *The graph shown above is for reference only. Please refer to the
trigger threshold criteria shall be adopted and adhered by the
2. All set out and levelling shall be conducted by the Head calibrated datasheet, which is unique for each pressure gauge.
client, client’s consultant, builder and excavation contractor.
Contractor in accordance with architectural drawings and this • Alert level
drawing. If the lateral displacement is less than this level, excavation
3. The required gap between the temporary earth-retaining wall could be continued.
and the basement wall is determined by the Head Contractor. • Action level
Confirmation on the installation record for the temporary earth- If the lateral displacement is beyond this level, Head Contractor
retaining wall implies the as-built alignment of sheet pile is to should notify RMS and MESO. The monitoring data shall be
the satisfactory of the Head Contractor. reviewed. The frequency of monitoring should be increased.
4. The permanent structure is to be constructed and backfilled as • Alarm level
soon as possible following excavation. If the lateral displacement is greater than this level, stop all
5. Any variation to the design assumptions made shall be notified excavation works. Head Contractor should notify RMS and
to MESO for approval. MESO. Monitoring must be carried out daily until otherwise
6. Installation record for the installed temporary earth-retaining stated. A risk assessment is to be completed and a contingency
system shall be provided by MESO. plan is to be implemented before the excavation can be INGROUND SOLUTION SPECIALISTS
7. Surface water shall be directed away from the top of earth- commenced. www.mesos.com.au Contact： 1300 10 MESO (6376)
retaining structures and not allowed to pond behind the top of 6. The monitoring shall be carried out at the following stages:
53 General Holmes Drive NSW 2016 ACN: 613 284 558
the wall or enter the subsurface drainage system. • Once the temporary earth-retaining wall is installed, Project 24 Arakoon Cres. Sunshine Beach
8. The design and analysis relied on the accuracy of the establish baseline data before any excavation Client JW Const.
information provided. MESO shall be notified if the site • The monitoring data should be collected after each Architect Shaun Locky Architecture
condition and subsurface ground conditions encountered differ excavation to reduced level as specified in excavation Structural Eng.
than the assumptions stated in the design report and drawings. certificate, before installation of anchor/brace Geotechnical Eng. Soil Surveys
9. Stability of all temporary slopes/batters is the responsibility of • Prior to the daily commencement of works and at
Head Contractor. Surveyor CadCon
completion, MESO and the Head Contractor shall conduct a
10. Geotechnical inspection is required for any excavation into visual inspection for signs of displacement and distress
Designed by H.Ajorlou
rock. • MESO shall be notified immediately if the recorded Drawn by H.Ajorlou
11. MESO shall be notified if the earth-retaining system installed is displacement is larger than the review level Checked by E.Woon
for a duration more than 6 months.
Issued Date
Working Platform
1. Working platform shall be designed competent engineer to
meet the stability and bearing requirement based on the For Review (FR) 20180803
information provided by the piling contractor Drawing Title
2. No over-excavation for the platform has been considered in the
design.
General Notes
Job ID Drawing Number Revision
18-029 SH 101 A
This Drawing is based on the information provided by the client and client consultants.Should additional information become available then a revised drawing will be provided at additional cost to the client. 8/3/2018 11:15:28 AM A0
© Documented copyright of Meso Design. The drawings are protected by copyright law and may only be reproduced, in electronic or hardcopy format with prior written permission of Meso Design Pty Ltd
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