RU2154714C1

RU2154714C1 - Marine ice-resistant platform

Info

Publication number: RU2154714C1
Application number: RU99112748/13A
Authority: RU
Inventors: Д.А. Бабаев; В.В. Гнатченко; Г.В. Грудницкий; К.В. Мурадов; В.Л. Петраков; нц Д.К. Чело; Д.К. Челоянц
Original assignee: Бабаев Давуд Агаджанович; Гнатченко Виктор Владимирович; Грудницкий Геннадий Васильевич; Мурадов Константин Ваганович; Петраков Валерий Леонидович; Челоянц Джеван Крикорович
Priority date: 1999-06-15
Filing date: 1999-06-15
Publication date: 2000-08-20

Abstract

FIELD: hydraulic construction engineering; construction of marine platforms of shelves of freezing seas. SUBSTANCE: marine ice-resistant platform consists of base with two ice-resistant supports rising above water. Tackle blocks are arranged on ice-resistant supports on either side; they are directed towards each other. Upper structure is made as craft or is delivered by transport pontoons. Tackle blocks arranged on deck of upper structure correspond to tackle blocks on outriggers. Located on deck of upper structure near tackle blocks are winches whose ropes are used for connecting the tackle blocks of outriggers with those of upper structure. After mounting the marine ice-resistant platform and securing it to bottom by means of piles (if necessary), upper structure is towed and is placed between ice-resistant supports. Ropes of winches are passed into tackle blocks of outriggers and upper structure by means of ropes- messengers and end of rope is secured as required. During operation of winches, raising of upper structure is started and is continued till its deck is at one level with deck of ice-resistant supports. EFFECT: low cost of construction and erection jobs due to avoidance of use of floating cranes. 3 cl, 6 dwg

Description

Изобретение относится к области гидротехнического строительства сооружений, в частности, на шельфе замерзающих морей для добычи нефти и газа. The invention relates to the field of hydraulic engineering construction of structures, in particular, on the shelf of the freezing seas for oil and gas.

Известно гидротехническое сооружение (патент США N 4784526, 1988, МКИ E 02 В 17/02, НКИ 405/204), включающее установку на дно акватории ледостойких опор, закрепление их сваями ко дну, транспортировку верхнего строения с технологическим оборудованием на плавучем средстве, посадку верхнего строения на ледостойкие опоры и отход плавсредства. Недостатком такого гидротехнического сооружения является необходимость применения специального плавсредства. A hydraulic structure is known (US patent N 4784526, 1988, MKI E 02 B 17/02, NKI 405/204), including installation of ice-resistant supports on the bottom of the water area, fixing them to the bottom with piles, transporting the upper structure with technological equipment on a floating vehicle, landing the upper structure for ice-resistant supports and the departure of the craft. The disadvantage of such a hydraulic structure is the need to use special watercraft.

Известна также морская ледостойкая платформа (патент РФ N 2040638, 1995, МКИ E 02 В 17/00), включающая верхнее строение в виде самоподъемной плавучей платформы, устанавливаемой на выдвигаемые из ледостойких опор подпорки. Недостатком такого решения является необходимость применения самоподъемной плавучей платформы. A marine ice-resistant platform is also known (RF patent N 2040638, 1995, MKI E 02 B 17/00), including the upper structure in the form of a self-lifting floating platform mounted on props that are pulled out from the ice-resistant supports. The disadvantage of this solution is the need for a self-propelled floating platform.

Изобретение схематически изображено на чертежах, где на фиг.1 показан общий вид платформы; на фиг. 2 - вид сверху (на фиг.1); на фиг.3,4 - подвод и подъем верхнего строения; на фиг.5 - расположение выдвижных пальцев; на фиг.6 - разрез А-А (на фиг. 5). The invention is shown schematically in the drawings, in which Fig. 1 shows a general view of a platform; in FIG. 2 is a plan view (in FIG. 1); Fig.3,4 - supply and rise of the upper structure; figure 5 - the location of the retractable fingers; Fig.6 is a section aa (in Fig. 5).

Морская ледостойкая платформа состоит из подводного корпуса 1 (фиг. 1,2,3,4) и ледостойких опор 2,3, прикрепленных ко дну сваями. По бортам опор расположены аутригеры 4,5,6,7, на которых расположены полиспастные блоки 8,9,10,11. Верхнее строение выполнено в виде понтона 12, внутри которого и на палубе расположено технологическое оборудование. На палубе понтона расположены полиспастные блоки 13,14, 15,16, соединенные элементами гибкой связи - тросами с полиспастными блоками ледостойких опор и лебедками 17,18, 19,20. На опорах, аутригерах и корпусе понтона выполнены гнезда 21 (фиг.5,6), в которых могут перемещаться пальцы 22. The sea ice-resistant platform consists of an underwater hull 1 (Figs. 1,2,3,4) and ice-resistant supports 2,3 attached to the bottom by piles. Outriggers 4,5,6,7 are located on the sides of the supports, on which are located the tackle blocks 8,9,10,11. The upper structure is made in the form of a pontoon 12, inside of which technological equipment is located on the deck. On the deck of the pontoon are located multisliding blocks 13.14, 15.16, connected by flexible communication elements - cables with polyspast blocks of ice-resistant supports and winches 17,18, 19,20. On the supports, outriggers and the pontoon body, nests 21 are made (Fig. 5,6), in which the fingers 22 can move.

Взамен шкивов полиспаста могут быть установлены цепные звездочки, а вместо троса цепи. Instead of pulleys of the chain hoist, chain sprockets can be installed, and instead of a chain cable.

Морская ледостойкая платформа используется следующим образом. Sea ice-resistant platform is used as follows.

В межледовый период ледостойкое основание доставляется на место установки и погружается на дно. Затем производится забивка свай (в случае необходимости) через ледостойкие опоры 2,3 и подводный корпус 1. После этого верхнее строение в виде понтона 12 прибуксируют и заводят его между ледостойкими опорами. Трос от лебедок 17, 18, 19,20 с помощью тросов - проводников заводят в полиспастные блоки 8, 9, 10, 11 и 13, 14, 15, 16, а конец троса крепят соответствующим образом. In the inter-ice period, the ice-resistant base is delivered to the installation site and sank to the bottom. Then the piles are driven (if necessary) through the ice-resistant supports 2,3 and the underwater housing 1. After that, the upper structure in the form of a pontoon 12 is towed and it is led between the ice-resistant supports. The cable from the winches 17, 18, 19,20 with the help of wire ropes is guided into the pulley blocks 8, 9, 10, 11 and 13, 14, 15, 16, and the end of the cable is fixed accordingly.

При работе всех четырех лебедок 17, 18, 19, 20 производят подъем понтона 12 до тех пор, пока его палуба не совпадет с палубами ледостойких опор. Затем пальцы 22, расположенные в гнездах понтона, выдвигают гидроцилиндрами до ввода их в гнезда на ледостойких опорах 2, 3. Затем тросы лебедок расслабляют и всю нагрузку передают на пальцы. Технико-экономическим преимуществом предлагаемого технического решения является сокращение строительно-монтажных работ в море и отказ от применения дорогостоящих плавучих крановых судов. When all four winches 17, 18, 19, 20 are operating, the pontoon 12 is hoisted until its deck coincides with the decks of ice-resistant supports. Then the fingers 22 located in the pontoon sockets are pulled out by the hydraulic cylinders until they are inserted into the sockets on the ice-resistant supports 2, 3. Then the winch cables are relaxed and the entire load is transferred to the fingers. The technical and economic advantage of the proposed technical solution is the reduction of construction and installation work at sea and the rejection of the use of expensive floating crane vessels.

Claims

1. Marine ice-resistant platform, including an underwater hull attached to the bottom of the piles, and two ice-resistant supports mounted on it opposite each other towering above the water, the upper structure with technological equipment and nodes connecting the upper structure with the ice-resistant platform, characterized in that at the level decks of ice-resistant supports, outriggers are installed, made on the sides and directed towards each other, on which the chain blocks are placed, and the corresponding chain blocks are placed on the deck of the upper next to the winches, through which the flexible connection elements of the polyspast blocks of ice-resistant supports and the upper structure are passed, and the connection nodes are made in the form of retractable fingers installed with the ability to move in sockets made in supports, outriggers and the upper structure.

2. Marine ice-resistant platform according to claim 1, characterized in that the flexible communication elements are made in the form of cables run through pulleys of pulley blocks.

3. Marine ice-resistant platform according to claim 1, characterized in that the flexible communication elements are made in the form of chains passed through chain sprockets mounted on chain blocks.