22.02.2022 Participation in Congress V “Hydraulic engineering utilities and dredging”
Congress V "Hydraulic engineering utilities and dredging" organized by media group “Portnews” took place in the Chamber of Commerce and Industry of the Russian Federation on February 16-17, 2022.
Design bureau “Fleet project” presented a report “Experience in construction of technical fleet in Astrakhan region”.
The report contains information on creation of shallow-draft non-self-propelled scow FPHB1 with capacity 110 cu m, non-self-propelled multi-bucket dredger FPDR1 with capacity 250 cu m/h and shallow-draft push-tug FPTG1 with output 440 kW.
Non-self-propelled dump scow with capacity 110 m3
Class RRR “X О 2.0”.
Use: transportation of soil from dredgers and dumping.
Main dimensions
|
Maximum length (no more than), m |
40 |
|
Overall breadth (no more than), m |
9.0 |
|
Depth (no more than), m |
1.8 |
|
Light draft (no more than), m |
0.55 |
|
Draught at the summer load waterline (no more than), m |
1.4 |
|
Load capacity (no less than), t |
190 |
|
Height from BL to fixed parts (no more than), m |
10.5 |
Non-self-propelled multi-bucket barge-loading dredger with capacity 250 m3/h with crew’s spaces.
Use: performance of dredging operations on heavy cohesive and non-cohesive soils of categories I-V (in accordance with the instruction on dredging operations approved by the River fleet Ministry of the Russian SFSR dated 11.05.1989).
Ship's class: The ship shall be designed and constructed for the class of the Russian River Register (hereinafter - RRR): “X О2.0 (Ice 10) А”.
Main dimensions
|
Maximum length (no more than), m |
52 |
|
Overall breadth (no more than), m |
12.5 |
|
Depth (no more than), m |
3.0 |
|
Air draught (no more than), m |
11.5 |
|
Draught at the summer load waterline, (no more than), m |
1.4 |
|
Capacity (no less than), m3/h |
250 |
|
Fuel endurance (no less than), days |
20 |
|
Category of excavated soils |
I-V |
|
Bucket capacity (no more than), m3 |
0.4 |
|
Maximum depth of excavation, m |
7 |
|
Minimum depth of excavation, m |
2 |
|
Optimum depth of excavation, m |
3 |
|
Range of bucket chain movement speed, buckets/min |
0÷24 |
|
Method of operation |
traversing |
|
Principle of operational movements |
anchor |
|
Bucket chain drive |
electromechanic |
Push-tug, output 2×200 kW, Class RRR “X О2.0 А"
Use: pushing and towing non-self-propelled facilities of all types.
Main dimensions
|
Maximum length (no more than), m |
26 |
|
Overall breadth (no more than), m |
7.5 |
|
Depth (no more than), |
1.8 |
|
Air draught (no more than), |
10.5 |
|
Draught at the summer load waterline (no more than), |
1 |
|
Main engine output (no less than), kW |
2 х 200 |
|
Fuel endurance (no less than), days |
10 |
|
Travel speed (no less than), km/h |
18 |
|
Crew, persons |
6 |
|
Displacement (about), t |
about 115 |
The main problems when using dredges and other technical fleet designed as per foreign projects were noted - high cost and delivery time of spare parts and consumables, lack of documentation for ship and process equipment, long-term expectation of technical specialists from the equipment manufacturer and so on.
As an alternative to foreign dredges, DB “Fleet project” offered non-self-propelled cutter-suction dredger FPDG3 with water output 7000 cu m/h.
Main dimensions:
|
Length overall, m |
66.35 |
|
length between pp, m |
59.4 |
|
Overall breadth (about), m |
11.88 |
|
Depth, m |
4.0 |
|
Draught at the summer load waterline, m |
1.4 |
|
Water output, m3/h |
7000 |
|
Endurance, days |
7 |
|
Category of excavated soils |
I-IV |
|
Suction pipeline diameter, mm |
720 |
|
Discharge pipeline diameter, mm |
720 |
|
Maximum depth of excavation, m |
15 |
|
Minimum depth of excavation, m |
2 |
Non-self-propelled traversing cutter-suction dredger with dredging pump with water output 7000 m3/h.
Architectural and structural type: Non-self-propelled dredger with slot for draghead afore, engine room and spud pole abaft.
Use: performance of dredging operations on sandy, oozy and fluvial soils of categories I-IV (in accordance with GOST 25100-2011 - Soils. Classification). Besides it can be used to perform: canal laying; aggradation of dams and territory for construction.
The dredger makes it possible to transport dredge spoil through a floating pipeline or by means of a dredge spoil thrower that provides throwing of the dredge spoil to both sides.
Ship's class: The ship shall be designed and constructed for the class of the Russian Maritime Register of Shipping (hereafter - RMRS): КЕ R3-RSN Dredger.
Operation conditions: Inland water ways of the Russian Federation as well as sea areas in accordance with RMRS class. The design ambient air temperature is +50˚С at humidity up to 54% in summer, - 30˚ С at humidity up to 85% in winter. The water salinity value is from 3% to 11%.
