Construction unit |
Communication Department of JNJQ |
Location |
Miaodao Archipelago Sea Area, Yantai Zhifu Bay Sea Area |
Time |
2008.4-2008.7 |
Construction design content |
1．Construction route design. Select the optimal submarine cable route from the survey plan, design suitable turning points, organize route review, and submit for approval on behalf of the construction unit. |
2．Design of submarine optical cables. Including capacity, length, model, spare parts, etc. |
3．Construction process design. Including burial depth, burial process, protection requirements for special sections, etc. |
Main parameters |
Cable model: ZTT SOFC-ASK400B/16B1 |
Outside Diameter: 36mm |
Number of cores：16 cores with double armor |
Weight per meter: about 4kg/m |
Total length of cables：65km |
Laying depth：3.0m |
Water depth：51m |
Seabed sediments： Muddy sand, sand, silt |
Situation |
(1) Submarine cable loading and transportation. The submarine optical cable is provided by Party A, with a total length of 51.17km per cable. (2) Three submarine optical cables were laid and buried, respectively from Nanchangshan Island to Tuoji Island (routing length of 26.57km), Tuoji Island to Daqin Island (routing length of 14.08km), and Yantai Kongtong Island (routing length of 6.66km); The total length of submarine optical cable routing is 47.31km. (3) Procurement and installation of 1km ductile iron joint sleeve. (4) Construction and installation of sea and land joint manholes, wiring rooms, monitoring markers, ordinary markers, anchor prohibition signs, trenching and sealing protection, etc. |
