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IMMERSION/INSTALLATION METHOD FOR ANCHOR BLOCK HAVING VARYING UNDERWATER WEIGHT
PROBLEM TO BE SOLVED: To provide an immersion/installation method for an anchor block, for showing an immersion/installation start position using a simulation for an anchor block whose underwater weight varies in a water area having tidal current to enable immersion/installation work from the anchor block's towing to immersion/installation in the water area having tidal current using a small-sized work ship.SOLUTION: An anchor block immersion/installation method includes an anchor block 1, a work ship 2, means for measuring a position of the work ship 2, means for measuring tidal current 7's flow direction/flow speed and depth, and a PC terminal 4 in which operation means for calculating a sedimentation start position 5 is installed. The operation means operates a motion equation for an anchor block 1 that goes down in an area having the tidal current 7 and has underwater weight varying with time to calculate the anchor block 1's grounding time from a water surface 10 to an immersion/installation target position 6, a movement distance 8 in the water surface 10 direction, and the sedimentation start position 5.SELECTED DRAWING: Figure 1
【課題】潮流のある水域における水中重量が変化するアンカーブロックのシミュレーションによって沈設開始位置を示し、潮流のある水域における小型の作業船によるアンカーブロックの曳航から沈設までの沈設作業を可能とするアンカーブロックの沈設方法を提供する。【解決手段】アンカーブロック１と、作業船２と、作業船２の位置測定手段と、潮流７の流向・流速および深度測定手段と、沈降開始位置５を求める演算手段がインストールされたPC端末４と、を備えている。演算手段により、潮流７の水域を沈降する水中重量が時間変化するアンカーブロック１の運動方程式を演算し、水面１０から沈設目標位置６までのアンカーブロック１の着底時間と、水面１０方向の移動距離８と、沈降開始位置５と、を求める。【選択図】図１
IMMERSION/INSTALLATION METHOD FOR ANCHOR BLOCK HAVING VARYING UNDERWATER WEIGHT
PROBLEM TO BE SOLVED: To provide an immersion/installation method for an anchor block, for showing an immersion/installation start position using a simulation for an anchor block whose underwater weight varies in a water area having tidal current to enable immersion/installation work from the anchor block's towing to immersion/installation in the water area having tidal current using a small-sized work ship.SOLUTION: An anchor block immersion/installation method includes an anchor block 1, a work ship 2, means for measuring a position of the work ship 2, means for measuring tidal current 7's flow direction/flow speed and depth, and a PC terminal 4 in which operation means for calculating a sedimentation start position 5 is installed. The operation means operates a motion equation for an anchor block 1 that goes down in an area having the tidal current 7 and has underwater weight varying with time to calculate the anchor block 1's grounding time from a water surface 10 to an immersion/installation target position 6, a movement distance 8 in the water surface 10 direction, and the sedimentation start position 5.SELECTED DRAWING: Figure 1
【課題】潮流のある水域における水中重量が変化するアンカーブロックのシミュレーションによって沈設開始位置を示し、潮流のある水域における小型の作業船によるアンカーブロックの曳航から沈設までの沈設作業を可能とするアンカーブロックの沈設方法を提供する。【解決手段】アンカーブロック１と、作業船２と、作業船２の位置測定手段と、潮流７の流向・流速および深度測定手段と、沈降開始位置５を求める演算手段がインストールされたPC端末４と、を備えている。演算手段により、潮流７の水域を沈降する水中重量が時間変化するアンカーブロック１の運動方程式を演算し、水面１０から沈設目標位置６までのアンカーブロック１の着底時間と、水面１０方向の移動距離８と、沈降開始位置５と、を求める。【選択図】図１
IMMERSION/INSTALLATION METHOD FOR ANCHOR BLOCK HAVING VARYING UNDERWATER WEIGHT
水中重量が変化するアンカーブロックの沈設方法
OTOMO HIDEAKI (author) / SATO AKIHISA (author) / NISHIDA HIDENORI (author)
2016-10-20
Patent
Electronic Resource
Japanese
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