臺灣博碩士論文加值系統

本文係針對深水防波堤受不規則波作用下之波壓特性，提出一Goda波
壓修正公式，使其能適用於深水防波堤之設計。並將本文Goda修正公式和
其他公式如Goda原公式、 Sainflou公式、Ito公式、黃等(1988)不規則
波波壓統計值公式、Stokes重複波波壓三 階解及侯等(1994)Goda修正公
式等，以實驗及現場資料，在波壓統計值特性、斷面上波壓分佈、合力及
力矩和波壓公式之精確性等方面加以比較。
研究結果顯示，本文Goda修正公式用於計算深水防波堤波壓時，適用範圍
大致可包含颱風所可能引起之波浪條件範圍。本文修正公式較規則波波壓
公式能準確預測不則波波壓及波浪溯上高度之統計值。本文公式之斷面上
波壓分佈、合力及力矩之計算結果均大致較其他公式為佳。本文以抗滑安
全係數來檢定公式之準確性，結果顯示本文Goda修正公式及Goda原公式較
Sainflou公式及Ito公式為精確。實用上本文Goda修正公式可適 用於設計
深水防波堤。

A modified Goda''s wave pressure formula have been proposed in
this study tocalculate irregular wave pressure acting on
deepwater breakwaters. On the basisof several lab and field
datas,the comparison and disscussion between pressureformulas
such as Goda''s formula,Sainflou''s formula was made on pressure
distri-bution,total wave force,moment and accuracy. The result
of this study shows that the present formula can mostly be
appliedin wave conditions at high seas,and have better results
on the statistical value of wave pressure and run-up height due
to irregular wave than pressureformulas from regular wave.
Prediction of present formula is closer to data thanother
formula in pressure distribution,total force and moment.Present
formula and Goda''s formula are more accurate when calibration
with the case of slidingsand nonslidings of upright sections of
prototype breakwaters. Come to the con-clusions,present formula
is suitable for practical design of deepwater break-waters.