深浅測量，土壌環境調査

日本語

業務名：
米海軍箱崎燃料基地内ノースドックの浚渫工設計

業務内容：
本業務内容は，米海軍箱崎燃料基地内のノースドックにおける浚渫工設計である。
GISによる深浅測量および地形測量を実施し，測量図面を作成した。その後，燃料輸送タンカー（Maersk Rhode Island Tanker: L=171m × 27m, Draft11.2m=36.8ft）の安全な航行に必要な水深を確保するために，浚渫範囲を決定し，浚渫工の設計を実施した。さらに，浚渫工で発生する浚渫土砂の廃棄方法について，各種法規に従って検討した後，採用案を決定した。
なお，最終的な米国政府管理下の海域における浚渫範囲は，800 ft x 150 ft (120,000 ft2 = 11,148 m²)となった。

 

英語

Hydrographic Survey, Soil Investigation

Project Title:
Design of Maintenance Dredging, Hakozaki Fuel Terminal, Japan

Description of our scope of work:
The purpose of this project is to provide Maintenance Dredging Design documents after conducting depth sounding at Hakozaki Fuel (POL) Terminal, including topographic survey and control points survey using GIS for the preparation of hydrographic survey maps. The survey report included findings and recommendations for areas where dredging is necessary for safe navigation of tankers/barges (Maersk Rhode Island Tanker: L=171m × 27m, Draft11.2m=36.8ft) and the method of disposal of the dredge soil materials.  The total dredging area of 800 ft x 150 ft (120,000 ft2 = 11,148 m²) within the Sea Area under US Government Jurisdiction was the final dredging area confirmed by the US Government out of the total surveyed area of 60,000 m2.

Design was performed in accordance with:
Kaiyo Osen Boshi Hou; Act for the Prevention of Marine Pollution and Maritime Disaster, Japanese Environmental Agency, 17 Feb., 1973; JEGS, Japane Environmental Governing Standards, September 2008 Version; Japanese Environment Ministry and Outline for Dredge Soil Investigation at Tokyo Bay, Dec. 2003, Bureau of Port and Harbor, Tokyo Metropolitan Government.