Define the meaning of preambles and discuss the difference in unit rate of bored pile shafts when the unit of bored piles shaft is changed from metre (m) to number (nr).

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Learning Outcomes to be Assessed:

  1. Review contractors tenders received, record and analyse, presenting a final
    recommendation.
  2. Interpret civil engineering information to compile a pricing document for tender
    purposes.
  3. Describe and quantify civil engineering works in accordance with HKCESMM.
  4. Construct descriptions of work appropriate to the work sections being measured, cost
    and represent in a priced Bill of Quantities.

  5. Assessment Details:
     Part 1 – Civils Costing (Approximately 18 hours preparation/equivalent to 2,000 words)
    (total: 30%)
    Preambles and Preliminaries are commonly stipulated in the bills of quantities of civil
    works. With reference to the HKCESMM, relevant government circulars and the Hong
    Kong government conditions of contract for civil works, you write an investigation report
    in around 2,000 words for the following:
  6. Define the meaning of preambles and discuss the difference in unit rate of bored pile
    shafts when the unit of bored piles shaft is changed from metre (m) to number (nr).
  7. Define the meaning of Preliminaries and discuss the difference in costs of transport
    for the engineer when the item coverage of transport for the Engineer is changed
    from “the item shall include for vehicle licence fee, fuel, cleaning, repairing,
    maintenance and accessories” to “the item shall include for fuel and reparing”.
  8. Write Preamble clauses and Preliminaries items that are appeared in bills of
    quantities.
  9. Discuss how you handle errors found in the tenderer’s pricing documents attached in
    Appendix A.

  10.  Part 2 –Civils Measurement (Approximately 36 hours preparation), this is an individual
    assessment. (70 %)
    Take off the quantities of bored piles, pile testing and concrete and formworks for the
    retaining walls shown on the attached drawing Nos. 202003-1001, 1002 100, 100,
    1005,1006 & 1007 (total 7 Nos), in accordance with the Government of HKSAR CESMM
    1992 edition with corrigendum upto September 2011.
    Prepare a bills of quantities based on the quantities taken off.
    You can make any assumption while you discover any information missed from the given
    drawings.
    Allocation of Marks:
    Part 1 (30 %)
     Preambles (7%)
     Preliminaries (7%)
     Writing Preambles Clauses and Preliminaries items (8%)
     Procedures of handling of errors in pricing documents (8%)
    Part 2 (70%)
     Taking off list (4%)
     Taking off quantities of bored piles (11%)
     Taking off quantities of formwork (11%)
     Taking off quantities of concrete works (11%)
     Taking off quantities of pile testing (7%)
     Waste calculation (3%)
     Squaring (3%)
     Abstracting (10%)
     Transferring measurement details to bills of quantities (10%)
    PILE
  11. PILE TESTS SHALL BE:
    (a) SONIC TESTS SHALL BE CARRIED OUT AT EACH BORED PILE.
    (b) COMPRESSION LOAD TEST 1 NO. PER DIFFERENT DIAMETER OF BORED PILE
    (c) TENSION LOAD TEST 1 NO. PER DIFFERENT DIAMETER OF BORED PILE
    2.
    Client
    Engeer
    Contractor
    Title
    GENERAL NOTES
    Scale : N.T.S.
    Drawing Number
    202003-1001
    THE CONTRACTOR SHALL EMPLOY AN INDEPENDENT HOKLAS ACCREDITED LABORATORY TO CARRY OUT THE PILE TESTS INCLUDING THE
    PREPARATION OF TEST REPORTS.
    NOTES
  12. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
    Client
    Engeer
    Contractor
    Title
    RETAINING WALLS RW18
    BORED PILE WALL
    LAYOUT PLAN
    Scale : N.T.S.
    Drawing Number
    202003-1002
    LAYOUT PLAN
    NOTES
  13. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
  14. PILE CASING SHALL BE GRADE
    S355J0H STEEL TO EN10210-1
    AND SHALL BE EXTENDED BY FULL
    PENETRATION BUTT WELD. TWO
    COATS OF BITUMINOUS
    PROTECTIVE LAYER SHALL BE
    APPLIED TO THE FULL LENGTH
    OF EXTERNAL FACE OF THE
    CASING.
  15. PILE CASING SHALL BE CLEAN AND
    FREE OF PROJECTION AND
    ADHERED MATERIAL. DENTS
    IN THE CASING SHALL NOT
    EXCEED 5MM IN DEPRESSION.
  16. REINFORCEMENT COUPLER SHALL
    COMPLY WITH 15 OF THE
    GENERAL SPECIFICATION-DETAILS
    AND LOCATION OF THE
    REINFORCEMENT COUPLER SHALL
    BE SUMITTED TO THE ENGINEER
    FOR APPROVAL.
    Client
    Engeer
    Contractor
    Title
    TYPICAL DETAILS OF
    BORED PILE WALLS
    (SHEET 1 OF 2)
    Scale : N.T.S.
    Drawing Number
    202003-1003
    NOTES
  17. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
  18. ALL LEVELS ARE IN METRES
    TO PRINCIPAL DATUM (PD)
    UNLESS OTHERWISE STATED.
  19. CONCRETE GRADES SHALL BE
    AS FOLLOWS :
    a. ALL STRUCTURES 45/20
    b. BLINDING CONCRETE 20/20
  20. FORMWORK SHALL BE
    AS FOLLOWS :
    a. SURFACE FACED F1
    SOIL OR GRANULAR
    b. EXPOSED SURFACE F5
    PILING SCHEDULE
    29
    10 Client
    Engeer
    SCHEDULE OF BORED PIPE WALLS
    Contractor
    D H S T o p r s Title
    2.00 6 2.50 0.20 T20-200 T10-200 6T32 6T10-400 TYPICAL DETAILS OF
    1.50 4 2.00 0.20 T10-200 T10-200 6T25 6T10-400 BORED PILE WALLS
    (SHEET 2 OF 2)
    Scale : N.T.S.
    Drawing Number
    202003-1004
    NO. OF
    PILES
    DIMENSION (m)
    j
    75T40 (TRIPLE CAGE)
    42T40 (DOUBLE CAGE)
    k
    T25-300 LINKS
    T16-300 LINKS
    REINFORCEMENT (BAR MARK)
    5 -15.00
    2000
    1800
    13.50 5
    12.50
    PILE DIAMETER
    EFFECTIVE TENTATIVE ROCK
    ROCK SOCKET HEAD LEVEL
    LENGTH (m) (mPD)
    CUT-OFF
    LEVEL
    (mPD)
    -20.00
    -15.00
    TENTATIVE PILE
    FOUNDING LEVEL
    OF MINI-PILE (mPD)
    -20.00
    NOTES
  21. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
    Client
    Engeer
    Contractor
    Title
    RETAINING WALL
    LAYOUT AND
    DEVLOPED ELEVATION
    Scale : N.T.S.
    Drawing Number
    202003-1005
    GENERAL LAYOUT
    NOTES
  22. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
    Client
    SCHEDULE OF RETAINING WALLS Engeer
    Bay L B D H T Contractor
    mm m m m m
    1 10517 8.00 1.00 1.0 – 4.8 0.70 Title
    2 10000 8.00 1.30 4.8 – 4.4 1.40 TYPICAL DETAILS OF
    3 9396 8.00 1.30 4.4 – 1.4 1.40 RETAINING WALL
    4 18660 6.10 1.30 1.4 – 2.9 1.00 (SHEET 1 OF 2)
    5 11000 5.50 0.50 2.90 0.40 Scale : N.T.S.
    6 11000 5.50 0.50 2.90 0.40 Drawing Number
    202003-1006
    DEVELOPED
    NOTES
  23. ALL DIMENSIONS ARE IN
    MILLIMENTRES UNLESS
    OTHERWISE STATED.
  24. CONCRETE GRADES SHALL BE
    AS FOLLOWS :
    a. ALL STRUCTURES 45/20
    b. BLINDING CONCRETE 20/20
  25. FORMWORK SHALL BE
    AS FOLLOWS :
    a. SURFACE FACED F1
    SOIL OR GRANULAR
    b. MOVEMENT JOINT F3
    C. EXPOSED SURFACE F5
    Client
    Engeer
    Contractor
    Title
    TYPICAL DETAILS OF
    RETAINING WALL
    Scale : N.T.S.
    Drawing Number
    202003-1007

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