一、简介Introduction

杜阿拉航道进口浅滩位于航道Wouri灯浮(.0N,.7E)andB3灯浮(.4N,.4E)之间,长约3海里，海图水深约7米。杜阿拉狭窄航道从B9灯浮(.3N,.4E)到泊位，航道长约12海里，最大宽度约米，航道维护水深约6.2米。泊位水深最好自己测量，据称挖泥船不负责维护距离泊位5米范围内的区域，以免损坏码头。经常有船舶在低潮时座底。

Doualaentranceshallowwaterareawhereisabout3nminlengthbetweenthefairwaybuoyWouri(.0N,.7E)andbuoyB3(.4N,.4E)andabout7mabovechartdatum.TheDoualanarrowchannelisabout12nmfromthebuoyB9(.3N,.4E)totheberthwithmaximumminwidthandmaintaineddepthabout6.2m.Itisbettertosoundthewaterdepthonberth.Itissaidthatthedredgerisnotresponsiblefortheareatotheberthwithin5msoastoavoidanydamagetothewharf.Somevesselswereoftensufferedtouchingbottomonberthatlowwater.

二、潮汐Tide

入口浅滩潮汐时间较之杜阿拉约提前1.5小时，杜阿拉港潮高在0.3-2.9m之间。具体可参考英版潮汐表NP，其主港是BONNYTOWN,NIGERIA；也可向代理索要当地的潮汐表。

Thetidaltimeattheentranceshallowis1.5hoursearlierthantheDoualaport.Thetidalrangeisbetween0.3mto2.9m.PleaserefertotheAdmiraltyTideTableNP-fordetailsandthestandardportisBonnyTown,Nigeria.Thelocaltideinformationisalsocanbegotfromyouragent.

三、航路简介

根据多艘进出港船舶船长实践，最佳通过浅滩和狭窄航道的航路点如下（进港）：

WP01.03-45.0N,-23.7E(FairwaybuoyWouri)

WP02.03-46.9N,-24.5E{BuoyNo.2(R)No.1(G),missing}

WP03.03-49.8N,-25.9E

WP04.03-51.3N,-27.6E

WP05.03-52.5N,-30.0E

WP06.03-54.3N,-32.4E

WP07.03-59.4N,-36.7E{BuoyNo.22(R)No.23(G)}

WP08.04-00.9N,-38.4E{BuoyNo.28(R)No.27(G)}

WP09.04-01.85N,-39.35E{BuoyNo.32(R)No.31(G)}

WP10.04-02.7N,-40.65E

WP11.04-02.97N,-41.22E(BerthNo.9)

Accordingtopracticalstudieshavebeencarriedoutwiththosemasterswhoexperiencedtransitingthatarea,thebestlaneforpassagethroughtheshallowwatersandnarrowchannelofDoualaasfollows:

WP01.03-45.0N,-23.7E(FairwaybuoyWouri)

WP02.03-46.9N,-24.5E{BuoyNo.2(R)No.1(G),missing}

WP03.03-49.8N,-25.9E

WP04.03-51.3N,-27.6E

WP05.03-52.5N,-30.0E

WP06.03-54.3N,-32.4E{BuoyNo.9(RW),missing,PilotStation}

WP07.03-59.4N,-36.7E{BuoyNo.22(R)No.23(G)}

WP08.04-00.9N,-38.4E{BuoyNo.28(R)No.27(G)}

WP09.04-01.85N,-39.35E{BuoyNo.32(R)No.31(G)}

WP10.04-02.7N,-40.65E

WP11.04-02.97N,-41.22E(BerthNo.9)

四、实践Practice

我轮于年5月3日空载进口，淡水吃水F/3.6，A/6.1米，靠9号泊位，另于年5月24日重载出口，淡水吃水F/8.0，M/8.1，A/7.9米。虽然多数灯浮缺失，但现存灯浮尚可有效帮助导航，进出港的安全基本还能保证。关键是引水很不负责任，图快省事，需要特别留心。进港时引水通常在过了23号绿浮上船，出港时一般在22号红浮下，不过有时甚至在28号红浮前就离船了！

目前还存在的灯浮有航道进口浮Wouri-RW(03-45.0N,-23.7E),B10-R(03-55.4N,-33.1E),B12-R(03-56.1N,-33.7),以及B6,22,23,31,32,33,如英版海图所示。

根据英版潮汐表NP-：

03-MAY-,DOUALA,LT------2.6M

24-MAY-,DOUALA,LT------2.1M

25-MAY-,DOUALA,LT------2.2M

则可以得出在浅滩（灯浮B12）附近区域的潮时潮高如下（时间减01h30m）：

03-MAY-,ENTRANCESHALLOWWATER(B12),LT------2.6M

25-MAY-,ENTRANCESHALLOWWATER(B12),LT------2.2M

我轮实际于年5月3日LT通过B12灯浮（缺失），顺流，机动全速，航速最高达10节，测深仪显示船底水深2.0米左右。约LT到达图示引水登轮区域即9号浮（缺失），引水及港调要求进航道继续航行。我轮为第三艘进口船，跟随一艘重载吃水8.1米的集装箱船。同时还有三艘重载出口船，过了14和15号浮后，引水要求最慢速会出口船。在等待会遇出口船期间，引水强调进口船靠航道左侧航行，特别要尽可能远离23号绿浮。但不幸的是，由于进出口船都到达了22和23号浮，我前面的集装箱船在会遇时略微靠近绿浮导致搁浅！到第二天通过拖轮协助才脱浅。

另于年5月24日LT离港出口，顶流，机动半速，航速保持在5节左右，测深仪显示船底水深0.2米左右。LT，引水在28号红浮前离船，尽量靠航道右侧航行。LT/25TH，到达内锚地抛锚，25日早上9点左右过浅滩续航。

MyvesselwasgotalongsidetheberthNo.9on03MayinballastconditionwithdraftinFWF/3.6,A/6.1m,andthendepartedon24Mayinladencondition,draftinFWF/8.0,M/8.1,A/7.9m.Throughmuchofbuoysweremissed,theexistedbuoysareeffectivetoaidnavigationsafetyinboundandoutbound.Pleasepaymoreattentiontothepilotsfortheircareless,irresponsibleandimpatient.ThepilotusuallyisboardedafterpassingtheGreenbuoyNo.23inboundanddisembarkedatRbuoyNo.22outbound.SometimespilotevendisembarkedbeforetheRedbuoyNo.28.

Atpresent,theexistedbuoysareWouri-RW(03-45.0N,-23.7E),B10-R(03-55.4N,-33.1E),B12-R(03-56.1N,-33.7)andB6,22,23,31,32,33,asshownontheBAchartNo..

AccordingtotheAdmiraltyTideTableNP-:

03-MAY-,DOUALA,LT------2.6M

24-MAY-,DOUALA,LT------2.1M

25-MAY-,DOUALA,LT------2.2M

Sothatthetideatshallowwater(BuoyNo.12)asfollow:

03-MAY-,ENTRANCESHALLOWWATER(B12),LT------2.6M

25-MAY-,ENTRANCESHALLOWWATER(B12),LT------2.2M

Inpractice,myvesselpassedactuallythebuoyB12atLton03May,favourablecurrent,manoeuvringfullspeedto10knots,andechosounderdisplayedthedepthisabout2.0munderkeel.AtaboutLt,arrivedatthepilotboardingarea(BuoyNo.9,missed)butpilotandportcontrolaskedtoenterthechannelproceedingtotheBuoyNo.23(G).Myvesselisthethirdinboundshipandfollowsupaladencontainerwithdraft8.1m.Atthesametime3outboundvesselsare







































北京中科医院
北京治疗白癜风的好方法