The docking plan is a detailed plan view seen from the bottom. Provide dry dock and required set up to dry dock the ferry boat. Drydocking drydocking is a situation where your vessel is exposed to increased risk. Dry docking planning and preparation for superintendents. Damen shiprepair amsterdam is based around four graven drydocks, the. Calculating block loading moment area method page 2 may 2008 the magnitude of the increase or decrease in load due to errors in height is difficult to calculate. Sqems operating procedure optec03 vessel management rev 7. Planning dry dock projects are often time consuming and considered the most expensive and complex maintenance event. Dry docking is an essential process for all shipping companies that own ships, regardless of the type of a ship marine vessel, cargo vessel, container ship or passenger ship each ship should be. The docking plan is used to obtain most of the information needed to plan the drydocking of. Various ship plans required for dry docking dieselship. If the world of drydocking had one moto, it would be plan, plan, plan and plan some more. This article will discuss the objectives for preparing a ship for dry docking, preparing a dry dock handbook if desired and the ship for dry dock, troublesdamages if dry docking is inadequately prepared, and procedures adopted to ensure safety in dry docking. The four main types of dry docking methods are as follows.
However, if all blocks are built to strict tolerances, and a softwood cap is used to. Based on the docking plan provided by the ship, the dock master prepares his own docking plan for the ship. Carry out planning and preparations for drydocking of a vessel. Explain fully the procedure taken before drydocking a vessel. Dry dock types dockmasters are not structural or marine engineers and are not expected to design dry docks. Planning and managing a drydocking for superintendents dnv gl. Introduction this design report describes the preliminary design of a 20,000 tlc floating dry dock for docking ships or dredgers. A late docking in often results in extended docking time.
E ectively manage the drydocking within the given time and budget. Planning drydock projects are often time consuming and considered the most expensive and complex maintenance event. Usually dry docking is done every 12 months to 24 months, as there could be machinery and systems that cannot be stopped while the ship is in use. Mar 23, 2020 the duration of a normal dry docking project is 1014 days. If dry dock is poorly managed, the expenses and time can escalate and important defects may not be identified and corrected. We identify objectives by engaging stakeholders, preparing comprehensive specifications and executing the project according to plan. Apart from the docking plan, the dock master would ask the arrival weight distribution of the ship. The duration of a normal dry docking project is 1014 days. Apr 18, 2016 if the world of drydocking had one moto, it would be plan, plan, plan and plan some more.
Dry docking plan for ships dry dock planning and management. Pdf sample daily progress report for dry dock repair works. Dock master will contact the ship, he is trained for block arrangement and stability during dry docking. The dry dock module is a solid tool designed for shipping companies to control dockings. In consultation with the dry dock the docking trim is agreed upon. All the information required to bring a ship to a dry dock are included in its docking plan. Dry dock tool designed for shipping companies to control. A complete guide of bringing a ship to dry dock myseatime. For additional information necessary to perform drydock calculations submit a request to the ko. Milstd1625, 2009, safety certification program for drydocking facilities and shipbuilding. Dm consultings basic dry dock training is a 4day course that covers the fundamentals and calculations of dry docking. In 2015, the teekay tankers team completed the largest drydocking program to date, successfully processing 17 vessels over the course of 382 days of service time. Explain fully the procedure taken before drydocking a vessel and the precautions taken before undocking.
Safety and health topics shipbuilding and ship repair. Many thousands of people worldwide are engaged within the perimeter of the docking and shipboard maintenance industries to ensure that our ships remain in class and are kept seaworthy. A floating dock is a kind of a pontoon with sponsons on both the sides. The guide is divided into 8 easytofollow chapters, which explain all the important jobs that are performed in the engine room. A the wet dock, b twelve dry docks, each to contain one ship, c the upper lock, by which the ships are to pass in and out of the wet dock, f the canel to supply the docks with water, e a branch of it leading into the wet dock, d two other branches which surrounds the dry docks and by gates opening into each, any one of them can be filled without the others. Many questions can be cleared, docking jobs examined, servicessurveys confirmed and spare parts orders can be discussed it is also a good opportunity to discuss what the crew can prepare before the.
The contractor shall be provided with docking plan informationdrawings, hydrostatic information and specific vessel principle characteristics in the work package from the ko. Special specification 7628 dry docking ferryboats 2. In dry docking, a ship is removed from the water to enable work to be performed on the exterior part of the ship below the waterline. Preparation for a dry dock vessel will create a defect list known as. Four hours are usually necessary for emptying a mediumsize dry dock 250 met. During dry docking, the whole ship is brought to a dry land so that the submerged portions of the hull can be cleaned or inspected.
They must, however, operate their dock in such a manner as to not exceed the operational limits of the dry dock that have been set by the designer. If this is not managed well, through good preparation, tight controls and close management, then costs can quickly spiral and times in dock can overrun, which can have an adverse impact on subsequent operating costs. In launching, the new or repaired ship is either floated in place or slid from its berth. A plan used by the head of a dry dock to determine the blocking required for a vessel prior to entering the dock. Special survey is carried out every 5 years interval. Spares which do not arrive on time, specialist technicians who arrive at the wrong time, poorly detailed repair specifications, not to mention the shipyard that is ill prepared. Note that as items are added, removed, or replaced from the dry dock, the inspection checklist shall be updated to re. Many questions can be cleared, docking jobs examined, servicessurveys confirmed and spare parts orders can be discussed it is also a good opportunity to discuss what the crew can prepare before the docking to save costs and most of all time. It shows all openings on the bottom, including the openings for the main sea. The walls are used to give the dry dock stability when the floor or deck is below the surface of the water. Dry docking dry docking is a situation where your vessel is exposed to increased risk. The dry docks of ente bacini utilize doors to close the gates this is the most famous system used all over in the world.
A guide to master dry dock operations for engine room department is a downloadable ebook designed to help you understand the whole dry docking procedure is a stepbystep manner, right from the planning to sea trials. This is an actual docking plan prepared by the dockmaster for a ship arriving at dry dock. Docking plan is a document developed by the shipyard constructing the vessel and includes essential information for the shipyard prior to docking the ship. Below are some of the sections of the actual docking plan prepared by dockmaster for s ship arriving for dry dock. The design consists of the following general arrangement plan design criteria for dock dimensions.
This certification also serves as verification that the contractor shall maintain compliance with the industrial standards for safety. All the information required to bring a ship to a dry dock is included in its docking plan. Furnish all utilities including daily electrical charges, scaffolds, crews, tow boats, line handlers, and overhead crane needed for the dry docking. It is essential on such occasion to make a thorough examination to ensure that all necessary work is carried out. As you can see, the dock master has planned which blocks he needs to remove and where he needs to put blocks. Special features dry docking is carried out twice in five years. A floating dry dock is a type of pontoon for dry docking ships, possessing floodable buoyancy chambers and a ushaped crosssection. The contractor shall submit documentation of their facilitys dry dock certification to the ko for approval. The process itself requires careful planning and preparation. The course begins with the basics and safety concerns, and progresses through all phases of dry docking. In many companies it is the responsibility of the marine engineers to inspect the hull of the ship on entering the graving dock. Once the vessels are put back into service, they are more ecofriendly and fuelefficient.
Refers to a specific dry dock operated by contractor with unique identity. Feb 23, 2016 ships plans are forwarded to the dry dock in advance. As there might be over 200 jobs involved it will be a challenge to complete all of them within a 815 day period not unusual for a routine docking. The type of dry docking method selected depends on the type of the ship and the severity of maintenance and repair required. Only one dry docking fee per work request will be paid for each ferry boat. Dry dockingrepair specification mv sd progress vessels particulars length overall 225,00 m breadth extreme 32,20 m depth to main deck 18,00 m dwt 65. Following ship management checklist may be used in connection to your ships drydocking. Jan 14, 2017 this article explains various ship plans required for dry docking like ga plan, shell expansion plan, capacity plan, midship section and others plans.
In addition to being critical of yardcontractor performance, praise good work where appropriate. When valves are opened, the chambers fill with water, causing the dry dock to float lower in the water. When you sign a docking contract you confirm an order for a service to be supplied at a certain place, during a specific period of time and at a specific cost. Dry docking planning and preparation for superintendents dnv gl. Dry docking responsibilities and contractual issues gard. At its core, the process of drydocking is about our commitment to operational leadership and our pledge to operate the best ships in the industry. Explain fully the procedure taken before dry docking a vessel and the precautions taken before undocking. Prepare a ship for dry dock bright hub engineering. Stability calculations are prepared prior arriving at the dry dock. This should develop a good relationship with the yard.
Before the ship is docked it is necessary to carry out a number of preparatory activities related to the docking procedure, provid. Such a gate is sunk at the entrance of the dry dock. Coast guard drawing 87 wpb 0850, rev b, docking plan. The item listed in the checklist is not present on the dry dock. As a chief engineer of a vessel, he must study the time of dry docking due, verify. Ships superintendent supported by ship staff as necessary to cooperatediscuss and agree with masteroperation department for the tank cleaning so to receive the. A cargo plan, showing the distribution and weights of cargo, ballast, fuel etc.
A dry docking a is a good opportunity to develop your working relationship with ships. Dry dock methods and types of drydock bright hub engineering. While most of the information is condensed into drawings, one must also refer to the textual references and. It provides a guide to industry for the different dock types and docking procedures inclusive of material management, steelwork operations and dry dock legislation.
Amsterdam docking and routing plan view pdf damen shiprepair. Underwater area is inspected surveyed and necessary repairs carried out according to classification rules. The largest single cost for any ship owner during the lifetime of vessel ownership is the cost of dry docking. This article explains various ship plans required for dry docking like ga plan, shell expansion plan, capacity plan, midship section and others plans. A visit onboard the vessel 46 months before the docking can help very much.
Dry docking of ships understanding stability and docking plan. We use cookies to personalize content and ads, to provide social media features and to analyse our traffic. A docking plan, showing the position of strength, members, drainage plugs etc. A guide to master dry dock operations for engine department. I know i am kind of repeating myself but i cant say it. Ships plans are forwarded to the dry dock in advance. Keel blocks are laid as per the vessels docking plan. The dock master will ask for following things docking plan arrival stability condition pre docking condition before arrival yard. Coast guard drawing 87 wpb 0850, rev, lifting cradle.
Pdf sample daily progress report for dry dock repair. Coast guard drawing 87 wpb 085010, rev d, docking plan. Dry docking a ship or carrying out major repairs, conversions or modifications can easily turn into a nightmare if not adequately planned. A docking plan is a document that is prepared for every ship during its preliminary design phase.