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) 333-13-11e-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

МОРСТРОЙТЕХНОЛОГИЯ

Solutions for artificial islands

http://www.morproekt.ru/ 327.02.2015

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

MORSTROYTECHNOLOGY

МОРСТРОЙТЕХНОЛОГИЯ

Solutions for artificial islands (continued)

http://www.morproekt.ru/ 427.02.2015

Construction modelling by finite elements method

MORSTROYTECHNOLOGY

МОРСТРОЙТЕХНОЛОГИЯ Problems of engineering design and construction in Arctic

http://www.morproekt.ru/ 527.02.2015

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

МОРСТРОЙТЕХНОЛОГИЯ

Severe Arctic conditions

http://www.morproekt.ru/ 627.02.2015

MORSTROYTECHNOLOGY

Arctic port of Pevek

МОРСТРОЙТЕХНОЛОГИЯ

Severe Arctic conditions

http://www.morproekt.ru/ 727.02.2015

MORSTROYTECHNOLOGY

Yakutsk

МОРСТРОЙТЕХНОЛОГИЯ

Severe Arctic conditions

http://www.morproekt.ru/ 827.02.2015

MORSTROYTECHNOLOGY

Salmanovskoe field

МОРСТРОЙТЕХНОЛОГИЯ

Solutions for successful projects

http://www.morproekt.ru/ 927.02.2015

1. Supply chain for construction materials

MORSTROYTECHNOLOGY

МОРСТРОЙТЕХНОЛОГИЯ Complex approach to field exploration and supply logistics

http://www.morproekt.ru/ 1027.02.2015

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 transportUneven cargo flow during explorationOversized and heavy cargo Lack or absence of transport infrastructureHigh risks and deadline restrictionsHigh construction and operational costs

МОРСТРОЙТЕХНОЛОГИЯ 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

МОРСТРОЙТЕХНОЛОГИЯ

Solutions for successful projects

http://www.morproekt.ru/ 1227.02.2015

2. Heavy ice conditions, ice loads on hydraulic structures

2.1 Morstroytechnology developed modern probabilistic forecasting methodsto define ice conditions

Correlation between daily average temperatures and icing index

MORSTROYTECHNOLOGY

Monthly average temperatures in May in 1961-2012

МОРСТРОЙТЕХНОЛОГИЯ

http://www.morproekt.ru/ 1327.02.2015

2.2 Development of new approaches to calculations of ice loads on hydraulic structures

2. Heavy ice conditions, ice loads on hydraulic structures

MORSTROYTECHNOLOGY

Solutions for successful projects (continued)

Interrelation of ice loads and speed of ice movement

Ice loads per meter of hydraulic structure depending onlength of section and length of obstacle

МОРСТРОЙТЕХНОЛОГИЯ

http://www.morproekt.ru/ 1427.02.2015

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 )

2. Heavy ice conditions, ice loads on hydraulic structures

MORSTROYTECHNOLOGY

Solutions for successful projects (continued)

Ice load from fast ice on meter of quay in June Ice load from ridges on meter of quay in May

МОРСТРОЙТЕХНОЛОГИЯ

http://www.morproekt.ru/ 1527.02.2015

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.

2. Heavy ice conditions, ice loads on hydraulic structures

MORSTROYTECHNOLOGY

Solutions for successful projects (continued)

МОРСТРОЙТЕХНОЛОГИЯ

http://www.morproekt.ru/ 1627.02.2015

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

2. Heavy ice conditions, ice loads on hydraulic structures

MORSTROYTECHNOLOGY

Solutions for successful projects (continued)

МОРСТРОЙТЕХНОЛОГИЯ Construction technology in Arctic conditions

http://www.morproekt.ru/ 1727.02.2015

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

МОРСТРОЙТЕХНОЛОГИЯ

CONCLUSIONS

http://www.morproekt.ru/ 1827.02.2015

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 youfor your attention!

Tel.: +7 812 333 13 10Fax: +7 812 333 13 11

e-mail: mct@morproekt.ru www.morproekt.ru