泰國3400DWT供油船氣囊下水方案中英雙語版

jimosea

3400t oil supply ship

Launching technology by using airbags

3400DWT供油船應用氣囊下水方案

1. This technology is used to launch 3400t oil supply ship built in Thailand, the other ships’ launching process can refer to this technology .

此方案應用于建造在泰國的供油船下水，其他船舶下水也可借鑒。

2. quoted standard：

CB/T3975-1996 airbags for ship slipping and launching

Loa=90m         B=15m         TF=1.674m  Ta=3.164m

D=6.8m               W=1850 t  

  下水船的相關數據：

  總長=90m   型寬=15m    艏吃水=1.674 尾吃水=3.164

  型深=6.8m  自重=1850T

2.2 main parameter of the slipway

船臺的主要參數

2.2.1 All we know is that the slipway is horizontal now。

我們現在只知道船臺是水平的·

2.2.2 rebuild requirement of the silpway：

關于船臺改造的要求

a. format the horizontal part of the slipway, and remove the object which can break airbags；

修理船臺水平的地方，并且清除可能對氣囊造成破壞的障礙物

b. the end of the horizontal slipway to the mean tide lever ,the grade should be 1/30~1/35 ,the bearing capacity is over 0.1Mpa.

船臺末端，接近水位的位置的坡度應該在1/30~1/35之間，并且能承受0.1Mpa的壓力

c. Under the water, the grade should be 1/15,the length is that， when launching ,the depth of the water at the end of the slipway should over1.8m.

在水中的船臺坡度應該在1/15，并且末端水深要超過1.8m

3. requirement of the main equipments

主要的設備

Air-bags type is 6 layers φ1.5×15,number is 20.

pillar height：H=0.9m：

Q=π(D-H)/2 L· P·N ·Cb =3.14(1.5-0.9)/2×15×0.16×9.8×10×16×0.7297=2586(t)

起墩過程中承載力的計算：

安全系數：K=2586/1850=1.39＞1.26

Airbag’s height：H=0.5m

safety factor：K=4311/1850=2.33＞1.26（satisfied）

the tractive force should be

牽引力

F= W*sinactank = 1850×sinactan1/80=23T