Meeting of the working group on the implementation of the federal target program "Development of civil marine engineering for 2009-2016"
On 12.12.2014 a meeting of the working group on coordination, scientific, technical and organizational support of work on the implementation of the federal target program "Development of civil marine engineering for 2009-2016" took place in the Federal Agency of Maritime and River Transport. The meeting was held under the supervision of the Deputy of Head of Rosmorrechflot Yuriy Kostin. Deputies of Head of Rosmorrechflot Viktor Vovk and Alexander Poshivay participated in the meeting.
The General Director of Marine Engineering Bureau, professor, doctor of technical sciences Gennadiy Egorov reported during the meeting about results of concept projects of small-draught tug-barge trains for the Siberian rivers and railway ferryboats for Caspian and Baltic Seas.
Technical projects of small-draught tug-barge trains for the Siberian rivers were discussed by the first.
Actuality of new generation tug-barge trains (TBT) building is connected to problems of restricted depth of the Siberian rivers; these problems became more hard every year.
Carried our analyze of the existing river and river-sea fleet of the river shipping companies of eastern basins allows to conclude that it will be necessary to discard all these vessels during the nearest 5-10 years due to actual age, moral obsoleting, wearing of machines and mechanisms, and due to hull wearing in some cases. The mostly representative is tanker fleet, at which the biggest part of the vessels are of single hull type.
The main preconditions of new TBT generation for cargo delivery to the RF Arctic regions are as follows:
• active development of the Northern Sea Way; due to CJSE CRMFI information, till 2020 capacity of cargo transportation may reach 60-65 million tons, coasting and transit transportations may reach 7 million tons (taking into consideration mixed river-sea transportation at Lena, Yenisei and Ob-Irtysh basins.
• realization and necessity for support of realized industrial and logistic projects (gas pipeline "Siberian Power", port of Sabetta, "Yamal-SPG", "SMC "Norilsk Nickel", "Vankorneft", systematic arrangement of towns and enterprises, etc.);
• considerable physical and moral obsolete of river and river-sea vessels of the shipping companies of Lena, Yenisei and Ob-Irtysh basins, while cargo flow is stable;
• absence of alternative for water transport at main part of Arctic regions (especially at the Lena basin; there it is possible to deliver material or energetic resource to some far settlements or enterprises by river at navigation period only).
As a result of Marine Engineering Bureau investigations, several technical projects of small-draught pusher trains with restricted working draught (1.40-2.35 m) were fulfilled, as follows: dry cargo variant (RD63 dry cargo pusher vessel plus RDB21 dry cargo barge), tanker variant (RT63 tanker pusher vessel plus ROB21 tanker barge) and combined variant (RT63A dry-cargo/tanker pusher vessel plus ROB21A dry-cargo/tanker barge).
Due to shipping experience, self-propelled cargo pusher vessels of CK type (CK-2000, CK-2000K, CK-2000KH) are the mostly efficient for work with dry cargo or tanker barges at swallow water Siberian rivers. So this allowed to use these vessels as prototypes for new concepts.
Developed perspective projects RT63, RD63 and RT63A of small-draught self-propelled inland waterway vessels are successors of project TO-1400, that was made for class "O" river tanker (project was developed out in the beginning of 2000s for Lena River Shipping Company). These new projects are intended to substitute in perspective existing tankers of 1754?, CK-2000K?, 414?, 414? project and dry cargo vessels of CK-2000, CK-2000K, ?-25? projects.
Basing on the analyze of existing coupling devices used at eastern basins, coupling unit UDR-100 was accepted for both variants (dry-cargo and tanker ones) of small-draught TBT.
New barge projects ROB21, RDB21 and RDB21A are the successors of the ??-2000 concept, which also was developed in the beginning of 2000s for Lena River Shipping Company. These new projects enhance operational abilities of tanker pusher vessel, increase cargo capacity of TBT, and provide loading multiplicity for river-sea tankers.
For information: the head ??-2000 barge was constructed at Zhataysk Shipyard in 2006. In 2008 construction of the hull of the head TO-1400 tanker was completed; then hull was towed to the Zhataysk Shipyard harbour for construction finishing.
Due to analyze of operational and weather conditions at investigated sailing regions and accumulated experience, the following RRR classification notations were accepted for discussed small-draught TBT: "O 2,0"(ice 20)A for pusher cargo vessel (at both dry-cargo and tanker variants) and "? 1,2"(ice 20) for barge. These classes allow to transport cargo at Lena basin during the whole navigation period.
Due to analyze of way restrictions, the maximal length till 170 m (summarized length of the pusher plus barge) was recommended for small-draught TBT for the Siberian rivers. It will be necessary to decrease running speed at Lena River part from Ust-Kut till Kirensk with waterway radius 300 m.
Several berths will require separate operations near them due to their insufficient length; such situation corresponds to operational models of prototype TBT, at which CK type vessels (CK-2000, CK-2000K, CK-2000KH projects) were used as pusher ones.
The maximal TBT breadth may be accepted from the region 17.2-22.8 m. High end usage will initiate construction problems if building at Russian shipyards.
Draught for small draught TBT for the Siberian rivers (at both dry-cargo and tanker variants) shall be set fron the region 1.40-2.35 m. One may take into consideration that Lena River has long-term spring high water.
Actually the main particulars of the small-draught TBT with restricted draught (1.40-2.35 m) were accepted as follows:
length overall 170.40 m;
breadth overall 17.20 m;
breadth 17.00 m;
draught (summer free board) 1.80 m.
RT63, RD63 and RT63A project vessels are steel single-deck self-propelled double-screw ones with inclined stem and transom stern, with ER located aft, with living superstructure and wheelhouse located fore, with bow thruster, with fore UDR-100 coupling unit for providing pushing od dry cargo, tanker or combined barges, including existing ones.
The main particulars of the RT63 pusher tanker are as follows:
RRR class notation is "O 2.0" ice 20 A;
length overall is 85.70 m;
length due to DWL is 83.58 m;
breadth overall is 17.20 m;
breadth is 17.00 m;
depth is 2.60 m;
depth to trunk deck is 4.40 m;
draught DWL is 1.80 m;
deadweight at draught 1.40 m is 773 t;
deadweight at draught 1.60 m is 1040 t (existing 414? vessels at draught 1.55 m has deadweight 625 t);
deadweight at draught 1.80 m (DWL) is 1310 t (existing CK-2000K? vessels at draught 1.84 m has deadweight 970 t);
deadweight at draught 2.00 m is 1581 t;
deadweight at draught 2.15 m is 1787 T;
deadweight at draught 2.35 m (operation at "R" class basins) is 2064 t;
ME maximal capacity is 2?746 kW;
speed (100% of ME output) is 10.0 kn;
crew is 8 people (10 places).
The main particulars of the ROB21 tanker barge are as follows:
RRR class notation is "P 1.2" ice 20;
length overall is 85.00 m;
length due to DWL is 84.40 m;
breadth overall is 17.20 m;
breadth is 17.00 m;
depth is 2.60 m;
draught DWL is 1.80 m;
deadweight at draught 1.40 m is 1253 t;
deadweight at draught 1.60 m is 1526 t;
deadweight at draught 1.80 m (DWL) is 1801 t;
deadweight at draught 2.00 m is 2075 m;
deadweight at draught 2.15 m is 2280 m;
deadweight at draught 2.35 m is 2555 m;
speed (in conjunction with RT63 pusher vessel) is 7.0 kn.
Finally, new concept TBT has deadweight 4619 t at draught 2.35 m (cargo capacity is 4445 t), deadweight 311 t at draught 1.80 m and deadweight 2026 t at draught 1.40 m; all this is much more that existing fleet vessels. Accordingly, despite increasing thickness of hull elements and appearing of additional constructions such as double bottom and double sides, specific transportation self-cost will decrease about 10-15% comparing with existing vessels.
For information: the most up-to-date TBT of Lena United River Shipping Company consists of TO-1400 tanker and ??-2000 barge; she has cargo capacity 3560 t at draught 2.35 m (i.e. by 885 t less).
As a result, due to RosMorRechflot order, Marine Engineering Bureau worked out up-to-date efficient project of small-draught tug-barge train with restricted working draught (1.40-2.35 m) for the Siberian rivers in dry cargo variant (RD63 dry cargo pusher vessel plus RDB21 dry cargo barge) and in tanker variant (RT63 tanker pusher vessel plus ROB21 tanker barge); also combined variant (dry-cargo/tanker) is foreseen. Characteristics of developed tug-barge train correspond to operational conditions of Siberian rivers and are significantly better than existing similar ones (she has bigger cargo capacity with simultaneously increased strength standard; there are fulfilled all current requirements due to ecology, safety, habitability and crew number reduction).
RosMorRechflot working group on coordination, scientific, technical and organizational support of work on the implementation of the federal target program "Development of civil marine engineering for 2009-2016" accepted introduced projects of small-draught tug-barge trains with restricted working draught (1.40-2.35 m) for the Siberian rivers.