NEXANS SPIDER terrain dredger system
NEXANS SPIDER terrain dredger system
NEXANS SPIDER terrain dredger system
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<strong>NEXANS</strong> <strong>SPIDER</strong><br />
<strong>terrain</strong> <strong>dredger</strong> <strong>system</strong><br />
Installation Services Section
The <strong>SPIDER</strong> <strong>system</strong> was developed for the excavation of the escarpment area on ORMEN LANGE.<br />
The 30 degree slope required a pre dredge trench of 10 m and 4 m deep in 30 degree slope.<br />
In the stiff to hard seabed, the <strong>SPIDER</strong> dredged these sectiion successfuly in 2005.<br />
The <strong>terrain</strong> <strong>dredger</strong> <strong>system</strong> was based on the idea of the Menzimuck <strong>terrain</strong> forester machine,<br />
and is classified as walking machine.<br />
The <strong>SPIDER</strong> has proven capacity in up to 300 kPa soil, can handle boulder up to 10”,<br />
and has an arm with reach of 6 m. It maneuvers with both use of thrusters or<br />
by the use of the walking legs.<br />
Further it has a fully operational VR control <strong>system</strong>,<br />
and all operation are done in 100% VR and with no requirement of any visibility.<br />
Size & weight<br />
Control Container :<br />
Workshops :<br />
Transformer Container :<br />
Storage container<br />
Generators (optional) :<br />
Umbilical winch :<br />
<strong>SPIDER</strong> :<br />
Hydraulic <strong>system</strong><br />
1 x 135 HP HPU for thrusters<br />
1 x 75 HPU for arm and legs<br />
8 x 17” thrusters (each 550kg)<br />
Bollard pull<br />
Fwd approx<br />
Lateral<br />
Vertical<br />
1500 kg<br />
500 kg<br />
1000 kg<br />
Arm <strong>system</strong> and ejector pumps<br />
1 x 420 KW cutting pump<br />
125 KW ejector pump<br />
14” ejector<br />
Max reach 6 m<br />
Max vertical range (-3 to + 3 m)<br />
Frame and lift structure<br />
Titanium air filled structure<br />
pressure rating 2000 m<br />
Buoyancy for 1000 m<br />
20´<br />
1 x 20´<br />
1 x 20’<br />
20’<br />
2 x 20’<br />
4.4 x 3 x 2.8m,<br />
5 x 4 x 2.5m,<br />
7t<br />
4t each<br />
13t<br />
7t<br />
15-18t each<br />
30t<br />
11t<br />
Electronic/Data<br />
27 Gbit uplink/175 Mbaud downlink with 5 x Rs232<br />
and 5 x Rs485/422, 6 x video and 2 x imaging sonar links,<br />
Ethernet with 3 x 10 Mbits links Typical<br />
16 extra Rs232 on Ethernet 1 Ghz main computer<br />
on control <strong>system</strong>.<br />
Control <strong>system</strong><br />
All data are collected on a serial to Ethernet drop down network<br />
which gives “local” control of all sensors and valvepacks.<br />
The lates control <strong>system</strong> technology as OPC,<br />
distributed data collection,<br />
touchscreens and WEB based monitoring and support tools.<br />
The <strong>system</strong> can be fully supported throuht the internet and<br />
low speed connections.<br />
Realtime control <strong>system</strong> for transformer control and LARS<br />
and umbilical winch control and monitoring.<br />
Sensors (typical)<br />
Six color video cameras<br />
Mesotech 1000 sonar<br />
Digiquarts pressure sensor<br />
Mesotech digital altimeter<br />
2 x Octans Fiberoptical survey gyro<br />
Two off electrical P&T units<br />
Linear sensors 16 off<br />
Sediment sensor<br />
Nexans Norway AS<br />
Installation Services Section<br />
P. O. Box 6450 Etterstad, N-0605 Oslo, Norway<br />
Tel: +47 22 88 61 00. Fax: +47 22 88 63 60<br />
www. nexans.no<br />
post.marine@nexans.com