IADC Revision of the IMO MODU Code Workshop - PowerPoint PPT Presentation

Loading...

PPT – IADC Revision of the IMO MODU Code Workshop PowerPoint presentation | free to view - id: 102a67-YzE1M



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

IADC Revision of the IMO MODU Code Workshop

Description:

An Administration may permit alternative design or ... and additional reserve buoyancy at the fore end, which may not always be possible to achieve. ... – PowerPoint PPT presentation

Number of Views:183
Avg rating:3.0/5.0
Slides: 18
Provided by: jandrew3
Category:
Tags: iadc | imo | modu | code | revision | workshop

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: IADC Revision of the IMO MODU Code Workshop


1
  • IADC Revision of the IMO MODU CodeWorkshop

2
Two goals
  • Commentary on IADC proposed changes
  • ABS Suggested areas for consideration

3
Definition of C bulkheads
  • A separate definition for C bulkheads is not
    needed if consistency with SOLAS is adopted

4
Proposed addition
  • 1.4(bis) Alternative design and arrangements
  • An Administration may permit alternative design
    or arrangements for fire safety giving
    consideration to regulation II-2/17 of the 1974
    SOLAS Convention.
  • We suggest that giving consideration is replaced
    with should comply with

5
Requirements v. Recommendations
  • Replacing the word requirement by the words
    recommendation or provisions erodes consistency

6
Deleted Fire Safety Paragraphs
  • 9.1.6 (partial) heat transmission at
    intersections
  • 9.2.7 low flame spread for exp. surfaces
  • 9.2.9 Deck coverings of approved materials
  • 9.2.10 Paints, varnishes, and other coverings

The proposed removal is only valid if SOLAS as
amended is maintained.
7
Any one compartment flooding on Jack-up
  • 3.4.1 The unit should have sufficient freeboard
    and be subdivided by means of watertight decks
    and bulkheads to provide sufficient buoyancy and
    stability to withstand
  • .1 In general the flooding of any one compartment
    in any operating or transit condition consistent
    with the damage assumptions set out in 3.5 and
  • .2 For a self-elevating unit, the flooding of any
    single compartment.

Application of the current damage stability
criteria to internal compartments is ineffective.
ABS suggests adoption of the Range of Stability
in the MODU Rules (as modified to 2005)
8
Bow Reserve Buoyancy
  • 3.7.18 Self Elevating Units may be manned when
    under tow. In such cases a unit would be subject
    to requirements for a minimum bow height and
    additional reserve buoyancy at the fore end,
    which may not always be possible to achieve. In
    such circumstances, the Administration should
    consider the extent of application of Regulation
    39(3) of the 1966 Load Line Convention to
    Regulations 39(1), (2) and (5) for such units,
    having regard to the occasional nature of such
    voyages on predetermined routes and to prevailing
    weather conditions.

9
1974 SOLAS
  • The As amended must be retained to maintain
    consistency with SOLAS

10
WT Closures
  • 3.6.4 The means to ensure the watertight
    integrity of internal openings should comply with
    the following
  • .1 Doors and hatch covers which are used during
    the operation of the unit while afloat should be
    remotely controlled from the central ballast
    control station and should also be operable
    locally from each side. Open/shut indicators
    should be provided at the control station.
  • .2 Doors or hatch covers in self-elevating units,
    or Doors placed above the Load Line draft in
    Column Stabilized and Surface Type units, which
    are normally closed while the unit is afloat
    should may be of the quick acting type and be
    provided with an alarm system (e.g. light
    signals) showing personnel both locally and at
    the central ballast control station whether the
    doors or hatch covers in question are open or
    closed. A notice should be affixed to each such
    door or hatch cover stating that it is not to be
    left open while the unit is afloat.

11
WT Closures
  • Remotely operated doors should be in accordance
    with SOLAS Ch II reg. 25-9.2

12
Non-alarmed manual WT doors
  • 3.6.5 The means to ensure the watertight
    integrity of internal openings which are only
    accesses for inspection and are kept permanently
    closed during the operation of the unit, while
    afloat, should have a notice affixed to each such
    closing appliance stating that it is to be kept
    closed while the unit is afloat however,
    manholes fitted with close bolted covers need not
    be so marked.

13
Separate ventilation for the galley
  • 9.2.13 should be modified to be in-line with
    SOLAS Reg 9.7.2 to require that galley
    ventilation systems be separate from the
    ventilation systems serving other spaces.

14
Aluminum Helideck
  • 9.11.2 regarding requirements for aluminum
    helidecks is based on the USCG requirements and
    which is more restrictive than the SOLAS
    approach.
  • To be be consistent, the requirements for a SOLAS
    helideck should be followed.

15
Vague language
  • Generally (see 9.2.11)
  • as far as practicable (see 9.1.8, 10.4,
    10.5.1.5, 14.5.5, 14.11, etc)

Are usually in vague statements that give room
for loopholes and unclear to the need to comply.
16
Ballast system on CSDU
  • 4.9.4 The ballast system should be capable of
    operating after the damage specified in 3.5.10
    and have the capability of restoring the unit to
    a level trim and safe draught condition without
    taking on additional ballast, with any one pump
    inoperable. The Administration may permit
    counter-flooding as an operational procedure.
    Counter-flooding is not to be considered as a
    means to improve the suction head available to
    the ballast pumps when considering the
    operability of the ballast system after the
    damage specified in 3.5.10.

17
Discussion
About PowerShow.com