Engineering design and construction of marine structures in Arctic

1
Engineering design and construction
of marine structures in Arctic
Speaker: Sergey A. Semenov, Ph.D.
Corporate Development Director, Morstroytechnology
Gzhatskaya street 21, building 2, litera "A“
Saint-Petersburg, Russia
Phone: (812) 333-13-10, Fax: (812) 333-13-11
e-mail: mct@morproekt.ru www.morproekt.ru

МОРСТРОЙТЕХНОЛОГИЯ
Arctic experience
http://www.morproekt.ru/ 227.02.2015
Geography of Morstroytechnology projects in Arctic
Production island
MORSTROYTECHNOLOGY
SabettaSalmanovskoe
Seyaha

Solutions for artificial islands
In Arctic conditions, artificial islands are unnatural obstacles for ice movement in open water area,
and are subject to immense ice loads.
MORSTROYTECHNOLOGY

Solutions for artificial islands (continued)
Construction modelling by finite elements method
MORSTROYTECHNOLOGY

Problems of engineering design and
construction in Arctic
1. Supply chain for
construction
materials.
2. Heavy ice
conditions, ice
loads on hydraulic
structures.
3. Construction
technology in
Arctic conditions.
MORSTROYTECHNOLOGY
ice-breaker channel

Severe Arctic conditions
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Arctic port of
Pevek

MORSTROYTECHNOLOGY
Yakutsk

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Salmanovskoe field

Solutions for successful projects
1. Supply chain for construction materials
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Complex approach to field
exploration and supply logistics
 Many fields are located in remote regions with lack of any transport infrastructure and
require special logistic approach to launch the project
winter road loading of oversized equipment
Some specific:
Example: cargo flow for oil field exploration, in thou tones
MORSTROYTECHNOLOGY
 Severe climate conditions
 Seasonality of transport
 Uneven cargo flow during exploration
 Oversized and heavy cargo
 Lack or absence of transport infrastructure
 High risks and deadline restrictions
 High construction and operational costs

Example of logistic strategy for remote
Arctic oil and gas field exploration
Systematization of
cargo flows data,
origin – destination
matrix
Project results
Cost modelling –
selection of optimal
transport schemes
Analysis of existing
infrastructure
Sensitivity analysis
MORSTROYTECHNOLOGY
• optimal transport scheme by costs
and risks
• seasonal distribution of volumes
• decisions to build or acquire
infrastructure, fleet etc.
• infrastructure development plan
• project management solutions

Solutions for successful projects
2. Heavy ice conditions, ice loads on hydraulic structures
2.1 Morstroytechnology developed modern probabilistic forecasting methods
to define ice conditions
Correlation between daily average temperatures and icing index
MORSTROYTECHNOLOGY
Monthly average temperatures
in May in 1961-2012

2.2 Development of new approaches to calculations of ice loads
on hydraulic structures
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Solutions for successful projects (continued)
Interrelation of ice loads and speed of ice movement
Ice loads per meter of hydraulic structure depending on
length of section and length of obstacle

2.3 Comparative analysis of ice loads calculated using methods developed by
Morstroytechnology and other internationally used methods
Ледовая нагрузка от ровного льда на 1 п. м. в июне
0
1
2
3
4
5
6
0 50 100 150 200 250
Ширина секции, м
F, МН/м
СП Ровный лед ИД табл. 2.5, табл. 2.8 СП Ровный лед ИД табл. 1.4
CAN Ровный лед ИД табл. 1.4 ISO Ровный лед ИД табл. 1.4
KRCA V‐1
Ледовая нагрузка от торосов на 1 п. м. в мае
0,00
2,00
4,00
6,00
8,00
10,00
12,00
14,00
0 20 40 60 80 100 120
Ширина секции, м
F, МН/м
СП Торос ИД табл. 2.5, 2.8 СП Торос ИД табл. 1.4
CAN Торос ИД табл. 1.4 ISO Торос ИД табл. 1.4
СП 38.13330.2012; CAN/CSA-S471-04; ISO 19906:2010; KRCA (K. R. Croasdale & Associates Ltd )
MORSTROYTECHNOLOGY
Ice load from fast ice on meter of quay in June Ice load from ridges on meter of quay in May

2.4 Methods of calculation of ice parameters and ice loads on hydraulic
structures calcultion developed by Morstroytechnology are approved by
“B.E. Vedeneev VNIIG”, JSC
“B.E. Vedeneev VNIIG”, JSC is one of
the largest scientific centers in
Russia in scientific validation of
designing, construction and
operation of hydraulic, thermal and
nuclear power plants,
hydroengineering and special
purpose structures, HES equipment.
VNIIG is entitled to develop
standards of ice loads calculation in
Russia.
MORSTROYTECHNOLOGY

2.5 Structural analysis of ice load impact
1. The choice of
parameters of frozen fill.
2. Thermal stabilization of
soil.
3. Modern engineering
software.
Backfill soil isotherms
Design of artificial island (PLAXIS)
System of thermal stabilization of soil
MORSTROYTECHNOLOGY

Construction technology
in Arctic conditions
Use of Russian inventions and patents – welded pipe sheet pile with
caliper tongue and groove connection (patent of Goncharov V.V. №2471042)
1. Successful pile driving in permafrost
soils.
2. Ice load accommodation in
construction period.
3. Import substitution.
4. Quality control at production plant.
MORSTROYTECHNOLOGY

CONCLUSIONS
1. Engineering design of infrastructure in Arctic requires in-depth analysis and
planning of supply logistics for construction materials, equipment, and
personnel. Construction of additional supportive infrastructure might be
needed.
2. Artificial islands are a special area of focus in exploration of Arctic. Research
and improvement of techniques of artificial islands’ construction will allow
technological breakthrough for Arctic projects.
3. Ice and ice loads have substantial impact on marine structures. Modern
methods of ice loads calculation may change significantly the type of marine
structure and construction costs.
4. Permafrost condition also has great impact on structures. Depending on
situation it may influence both positively and negatively.
5. Experience and knowledge acquired by Morstroytechnology allow to solve
tasks of any complexity in Arctic conditions and optimize construction costs.
MORSTROYTECHNOLOGY

Thank you
for your attention!
Tel.: +7 812 333 13 10
Fax: +7 812 333 13 11
e-mail: mct@morproekt.ru
www.morproekt.ru

Engineering design and construction of marine structures in Arctic

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