TR2023011535Y

TR2023011535Y - INNOVATION IN SEMI-SUBMERSIBLE PONTOON

Info

Publication number: TR2023011535Y
Application number: TR2023/011535
Authority: TR
Inventors: Av Nal Murat
Original assignee: Navtek Deni̇z Teknoloji̇si̇ Anoni̇m Şi̇rketi̇
Filing date: 2023-09-15
Publication date: 2025-02-21

Abstract

Buluş (1), güvertesinde yüksek ağırlıktaki yapıların taşınması, yüzdürülmesi ve havuzlaması amacıyla kullanılan, üçgen prizma gövdeye (2) sahip olan, kendi tahrik sistemi bulunmayan, karadan alınan yüzer yapının transfer gemiler ve sephiye kulelerindeki (6) pompalar (5.1) yardımıyla balast tanklarına (7) alınan deniz suyu ile yarı-dalış pozisyonuna gelerek yüzer yapının dalış draftına (B) getirilmesiyle yüzdürülmesi süreçlerini gerçekleştiren bir yarı daldırılabilir dubada yenilik (1) ile ilgilidir.The invention (1) relates to a semi-submersible barge innovation (1) which is used for the purpose of carrying, floating and docking heavy structures on its deck, has a triangular prism body (2), does not have its own drive system, and carries out the processes of floating the floating structure taken from the land by bringing it to the diving draft (B) by coming to a semi-submersible position with the sea water taken into the ballast tanks (7) with the help of pumps (5.1) in the transfer ships and sea towers (6).

Description

TARIFNAME YARI DALDIRILABILIR DUBADA YENILIK Teknik Alan Bulus, güvertesinde yüksek agirliktaki yapilarin tasinmasi, yüzdürülmesi ve havuzlamasi amaciyla kullanilan, sephiye kulelerindeki pompalar yardimiyla balast tanklarina alinan deniz suyu ile yari- dalis pozisyonuna gelmesi ve yüzer yapinin dalis draftina getirilmesiyle yüzdürülmesi süreçlerini gerçeklestiren, üçgen prizma gövdeye sahip olan, hareket kabiliyetini tasiyici gemiler vasitasiyla yapan bir yari daldirilabilir dubada yenilik ile ilgilidir. Teknigin Bilinen Durumu Günümüzde insaat alaninda kara ya da denizlerde insanlara ait mega yapilar bulunmaktadir. Bu yapilarin olusumu esnasinda özellikle deniz veya okyanusa kurulumlari sirasinda büyük kaliplarin ya da parçalarin bölgelere sevk edilmesi için yüzdürülebilir tasiyici platformlara ihtiyaç vardir. Bu yapilarin yüzdürülmesi amaciyla kendi itis gücü veya tahrik sistemi bulunan ve bulunmayan birçok deniz araci mevcuttur. Bu deniz araçlarinin bir kismi farkli tipteki pompalarin sagladigi imkânlarla dalis kabiliyetine sahiptir. Sektörde kullanilan yari daldirilabilir dubalar geometrik olarak tipik gemi formu ve sephiye kulelerinden veya ponton ve sephiye kulelerinden olusmaktadir. Ponton ve sephiye kulelerinden olusan dubalarin ponton kisimlari dikdörtgen prizma veya kare prizma gibi hem enine hem de boyuna simetrik geometrilerden olusmaktadir. Bu yapida olusan temel sorun ise yari daldirilabilir dubalarin, yüzer rüzgâr türbinleri gibi binlerce ton agirligindaki açik deniz yapilarinin güvertede tasinmasi ve yüksek derinliklere dalis yapilarak yüzdürülmesi sebebiyle yüksek mukavemetlere sahip olmasi gerekmesidir. Dolayisiyla yari daldirilabilir dubalarin kendi agirliklari ciddi sekilde artmakta ve yüksek maliyetleri beraberinde getirmektedir. Ayrica kendi tahrik sistemi olmayan ve ponton kismi dikdörtgen ve kare prizmalardan olusan dubalarin yedekleme sirasinda karsilastigi direnç kuvveti oldukça yüksektir. Bu da yedekleme sirasindaki çeki gücü ihtiyacini arttirmakta ve yedekleme hizlarinin düsmesine sebep olmaktadir. Bu durumlar operasyonel ve insa süreçlerindeki maliyetleri arttirmaktadir. sondaji ve üretiminde kullanilmak için yari daldirilabilir bir yüzer yapidan bahsedilmektedir. Yari suya daldirilabilir yüzer yapi, çok sayida duba bölümü, bir dis kenar ve bir iç kenar içeren bir duba içerir, duba bölümlerinin arasinda bir iç bosluk vardir. Yari suya daldirilabilir yüzer yapi ayrica dubadan dikey olarak yukari dogru uzanan çok sayida kolon içerir. Her kolonun bir üst kolon genisligine sahip bir üst bölümü vardir. Alt kisim, dubaya birlestirilmis ve dubanin dis kenari ile hizalanmis bir alt uca sahiptir. Alt uç, üst kolon genisliginden daha büyük bir alt kolon genisligine sahiptir, alt ucun en azindan bir kismi iç bosluga çikinti yapar. Alt kisim ayrica üst kisim ile alt uç arasinda genisletilmis bir kisma sahiptir; Genisletilmis kisim, üst kisimdaki üst sütun genisliginden alt uçtaki alt sütun genisligine kadar degisen bir genislige sahiptir. Ancak önceki teknige konu olan bu belge, kontrol mekanizmasinin zayifligi, sephiye kulelerinin yetersiz içerigi ve çalisma prensibindeki eksiklikler göze çarpmaktadir. Yüksek kargo yüklerinden sebep güverteye etkiyen yükler ve yüksek dalis derinligindeki hidrostatik basinç kuvvetleri karsisinda geometrinin yeterli mukavemete sahip olmasi gerekmektedir. Dolayisiyla plaka kalinliklari ve enine, boyuna elemanlarin yüksek mukavemetli olarak seçilmesi gerekliligi ortaya çikmaktadir. Bu sebeple dubanin agirligi ciddi sekilde artmaktadir. Dubalarin ponton kisimlarinin dikdörtgen prizma veya kare prizma yerine üçgen prizma geometrisine sahip olmasi, dubanin agirligini azaltmaktadir. Ayrica bu kazanim ile birlikte geometrinin enine ve boyuna mukavemetinde ve stabilitesinde bir dezavantaj yasanmamaktadir. Ayrica dikdörtgen prizma ve kare prizma geometrisi yerine üçgen prizma kullanimi ile birlikte yedekleme operasyonlarinda dubanin karsilasacagi direnç kuvvetleri azalacaktir. Ihtiyaç duyulan direnç kuvvetinin azalmasi, dubanin yedekleme hizini arttirmaya ve daha düsük çeki kuvvetine sahip römorkörler ile operasyonun yapilmasina olanak saglamaktadir. Sonuç olarak, yukarida anlatilan olumsuzluklardan dolayi ve mevcut çözümlerin konu hakkindaki yetersizligi nedeniyle ilgili teknik alanda bir gelistirme yapilmasi gerekli kilinmistir. Bulusun Açiklamasi ve Amaci Yukarida anlatilan amaçlari yerine getirmek üzere bulus, yüzer yapilarin yüzdürülmesi amaciyla kendi tahrik sistemi bulunmayan, güvertesindeki yüksek agirliktaki yapilarin yüzdürülmesi için yanlarinda bulunan sephiye kulelerindeki pompalar yardimiyla balast tanklarina alinan deniz suyu ile yari dalis pozisyonuna gelen ve karadan alinan yüklerin asistan gemi araciligiyla yüzer yapinin yüzdürülme süreçlerini gerçeklestirerek transfer edilmesini saglayan yari daldirilabilir dubada yenilik olup özelligi; - Sephiye kulelerini bir arada tutan, yedekleme operasyonlarinda dubanin karsilasacagi direnç kuvvetlerinin azalmasini saglamasiyla birlikte yedekleme hizini arttirmaya ve duba agirligini azaltmaya yarayarak daha düsük çeki kuvvetine sahip römorkörler ile operasyonun yapilmasini saglayan en az bir üçgen prizma gövde, - Güverte seviyesinin üst görünümünde yari daldirilabilir dubanin rihtima veya açik deniz yapilarina baglanmasina yarayan en az bir adet baglama ekipmani, - Güverte seviyesinin balast tanklarina erisimini saglayan ve her bir balast tanki için birer tane olacak sekilde yerlestirilen en az bir adet menhol kapagi, - Bahsedilen sephiye kulesinin üst kisminda yer alan ve sahilden elektrik ile beslenebilecegi gibi açikta yapacagi ya da sahilden beslemenin mümkün olmadigi durumlarda elektrik ihtiyacini karsilanmasini saglayan en az bir jeneratör, - Sephiye kulesinin iç kisminda bulunan, duba baglama ekipmani ile rihtima ya da açik deniz yapisina baglanamadigi veya açik denizde yapacagi operasyonlarda sahip oldugu en az bir adet çapa, - Bahsedilen sephiye kulesinin iç kisminda bulunan ve yine bahsedilen çapanin baglanti aparati olan en az bir adet çapa zinciri, - Sephiye kulesinin her birinin iç alt tarafinda yer alan ve balast tanklarina su alimini saglayan en az bir pompa odasi, - Yari daldirilabilir dubanin iç kisminda yer alan balast tanklarinin operatör tarafindan doldurup bosaltilmasina yarayan en az bir pompa, - sephiye kulelerinin ve yine bahsedilen pompa odalarinin arasindaki erisimin saglanmasi amaciyla yer alan en az bir adet erisim merdiveni, - Bahsedilen güverte seviyesinin dip kisminda bulunan ve yine bahsedilen sephiye kuleleri arasinda erisim saglayan en az iki adet pompa tüneli, - Bahsedilen güverte seviyesinin dalis yapildigi sirada üstünde kalan ve kiç tarafta en az iki adet ve bas tarafta da en az bir adet bulunan sephiye kuleleri içeren ve - Menhol kapaklarinin alt kisimlarinda yer alan, pompalar yardimiyla alinan veya tahliye edilen deniz suyunun doldurularak yari daldirilabilir dubanin istenilen boyda daldirilmasini saglayan en az bir adet balast tanki Içermesidir. Bulus, mevcut durumlardan esinlenerek olusturulup önceki teknikte belirtilen olumsuzluklari çözmeyi amaçlamaktadir. Bulusun en önemli amaci; yük tasimak amaciyla üretilen dubalarin binlerce ton agirligindaki açik deniz yapilarinin güvertede tasinabilmesi için yüksek mukavemet gerektirdiklerinden dubalarin yüksek olan kendi agirliklarini kare prizma yerine üçgen prizma geometrisine sahip olmasiyla azaltarak yüksek mukavemeti korumaktir. Bulusun bir baska ana amaci; dikdörtgen prizma ve kare prizma geometrisi yerine üçgen prizma kullanimi ile birlikte yedekleme operasyonlarinda dubanin karsilasacagi direnç kuvvetleri azaltarak, dubanin yedekleme hizini arttirmaya ve daha düsük çeki kuvvetine sahip römorkörler ile operasyonun yapilmasina olanak saglamaktadir. Bulusun bir diger amaci; yukarda da belirtildigi gibi yüksek mukavemet gerektirdiginden yari daldirilabilir dubalarin kendi agirliklarinin ciddi sekilde artmasi, dikdörtgen prizma ve kare prizma geometrisi nedeniyle yedekleme sirasindaki çeki gücü ihtiyacinin artmasi, yedekleme hizlarinin düsmesi gibi durumlar operasyonel ve insa süreçlerindeki maliyetleri arttirmaktadir. Dolayisiyla üçgen prizma yardimiyla yukarda bahsedildigi gibi bu sorunlarin önüne geçilerek maliyetin azaltilmasi saglanmaktadir. Bulusun ana hattini olusturan ve tonlarca agirliklardaki yüklerin tasinabilmesi amaciyla yüksek mukavemet özelligini korurken maliyeti azaltacak üçgen prizma seklinde tasarlanan gövde sayesinde ayni kaldirma kapasitelerinde %25-30 daha az çelik tekne agirligina sahip platformlar yapilmasi avantajini saglayacaktir. Dolayisiyla yatirim maliyetleri de benzer oranda azaltacaktir. Platform geometrisi sebebiyle daha düsük dirençlerle karsilasmasi isletim maliyetlerini düsürecektir. Isletim maliyetleriyle ilgili azalmanin kaldirma kapasitesiyle ters orantili olacak sekilde %5 ile %20 arasinda degisecegi ön görülmektedir. Bulusun Anlasilmasina Yardimci Olacak Sekiller Sekil 1. Bulus konusu yari daldirilabilir dubada yeniligin üst perspektif görünümüdür. Sekil 2. Bulus konusu yari daldirilabilir dubada yeniligin yan görünümüdür. Sekil 3. Bulus konusu yari daldirilabilir dubada yeniligin üst görünümüdür. Bu bulusun anlasilmasina yardimci olacak sekiller ekli resimde belirtildigi gibi numaralandirilmis olup isimleri ile beraber asagida verilmistir. Sekillerdeki Parça Referanslarinin Açiklamasi A. Ponton Güverte Seviyesi B. Dalis Drafti C. Yük Tasima Bölümü D. Pompa Odasi Kaporta Kapagi 1. Yari Daldirilabilir Dubada Yenilik 2. Gövde 2.1.Baglama Ekipmani 2.2.Menhol Kapagi 3. Jeneratör 4. Çapa 4.1.Çapa Zinciri . Pompa Odasi .1.Pompa .2.Erisim Merdiveni .3.Pompa Tüneli 6. Sephiye Kulesi 7. Balast Tanki Bulusun Detayli Açiklamasi Yari daldirilabilir duba (1), pompa odalarinda (5) bulunan pompalar (5.1) yardimiyla balast tanklarina (7) alinan deniz suyu ile dalis yapmaktadir. Dalis drafti (B) ile ponton güverte seviyesi (A) arasindaki düsey mesafe, yüzdürülmek amaciyla üzerine alinacak yükün yüzme draftina limit getirmektedir. Yani yüzdürülmek istenen deniz yapisinin dalis draftindan (B) önce yüzmesi gerekmektedir. Ponton güverte seviyesi (A), yük tasima kismina (C) yerlestirilen kargo yükünün tasinacagi kisimdir. Yari daldirilabilir dubanin (1) rihtima veya açik deniz yapilarina baglanmasi amaciyla baglama ekipmani (2.1) gövdenin (2) her yönünde olacak sekilde konumlandirilmistir. Balast tanklarina (7) erisimin saglanmasi için gövdenin (2) alt bölümüne denk gelen yük tasima bölümün (C) altina menhol kapaklari (2.2) yerlestirilmistir. Her bir balast tanki (7) için bir adet menhol kapagi (2.2) yerlesimi yapilmistir. Dalis yapildigi sirada ponton güvertesinin (A) üstünde kalan ve kiçta iki adet ve bas tarafta bir adet olarak bulunan sephiye kuleleri (6), gövdenin (2) köselerinden yükselmekte ve pompa odasi (5), jeneratör (3) gibi su ile temasin olmayacagi noktalarin muhafazasini saglamaktadir. Sephiye kuleleri (6) arasindaki erisimin saglanmasi amaciyla erisim merdivenleri (5.2) ve pompa tüneli (5.3) yer almaktadir. Pompalarda (5.1) meydana gelecek arizalara müdahale etmek ve ihtiyaç durumunda kuleler (6) arasi geçisin saglanabilmesi amaciyla kuleler (6) arasi erisim sistemi olusturulmustur. Ayrica her bir pompa odasina (5), tamir ve bakimin yapilmasi amaciyla pompa odasi kaporta kapagi (D) tasarimi yapilmistir. Yari daldirilabilir duba (1) sahilden elektrik ile beslenebilecegi gibi açikta yapacagi ya da sahilden beslemenin mümkün olmadigi durumlarda elektrik ihtiyacini karsilayacak bir jeneratöre (3) sahiptir. Baglama ekipmani (2.1) ile rihtima ya da açik deniz yapisina baglanamadigi veya açik denizde yapacagi operasyonlarda sahip oldugu çapa (4) ve çapa zinciri (4.1) yardimiyla kendi basina demirleme kabiliyetine sahiptir. TR TR TR TR TR TR TR TRDESCRIPTION OF INNOVATION IN SEMI-SUBMERSIBLE POUND Technical Field The invention relates to an innovation in a semi-submersible pontoon with a triangular prism hull, used for transporting, floating, and docking heavy structures on its deck. It achieves this by being brought to a semi-submersible position using seawater pumped into ballast tanks by the support of buoyancy towers, and by bringing the floating structure to its diving draft. Its movement is facilitated by carrier vessels. State of the Art Today, mega-structures belonging to humans are found in construction sites on land or at sea. During the construction of these structures, especially during their installation at sea or in the ocean, there is a need for submersible carrier platforms to transport large molds or parts to the site. Many marine vessels, both with and without their own propulsion or drive systems, exist for the purpose of floating these structures. Some of these vessels have submersible capabilities thanks to the possibilities provided by different types of pumps. Semi-submersible pontoons used in the sector are geometrically composed of typical ship forms and buoyancy towers, or pontoons and buoyancy towers. The pontoon sections of pontoons and buoyancy towers consist of geometric shapes that are symmetrical both transversely and longitudinally, such as rectangular or square prisms. The main problem with this structure is that semi-submersible pontoons need to have high strength because they carry offshore structures weighing thousands of tons, such as floating wind turbines, on their decks and are floated by submerging to great depths. Therefore, the weight of semi-submersible pontoons increases significantly, and this leads to high costs. Furthermore, pontoons without their own propulsion system and whose pontoon sections consist of rectangular and square prisms experience a very high drag force during towing. This increases the need for pulling power during towing and causes a decrease in towing speeds. These situations increase costs in operational and construction processes. A semi-submersible floating structure is discussed for use in drilling and production. A semi-submersible floating structure consists of a pontoon with numerous pontoon sections, an outer edge and an inner edge, with an internal cavity between the pontoon sections. The semi-submersible floating structure also includes numerous columns extending vertically upwards from the pontoon. Each column has an upper section with the width of the upper column. The lower section has a lower end that is attached to the pontoon and aligned with the outer edge of the pontoon. The lower end has a width greater than the width of the upper column, with at least a portion of the lower end protruding into the internal cavity. The lower section also has an extended section between the upper and lower ends; the extended section has a width varying from the width of the upper column at the top to the width of the lower column at the bottom end. However, this document, which is the subject of the previous technique, highlights weaknesses in the control mechanism, insufficient content of the buoyancy towers, and deficiencies in the operating principle. Due to the loads acting on the deck from high cargo loads and the hydrostatic pressure forces at high diving depths, the geometry must have sufficient strength. Therefore, it becomes necessary to select plate thicknesses and transverse and longitudinal elements with high strength. For this reason, the weight of the pontoon increases significantly. The use of triangular prism geometry instead of rectangular or square prism geometry for the pontoon sections of the pontoons reduces the weight of the pontoon. Furthermore, this advantage does not result in any disadvantage in the longitudinal and transverse strength and stability of the geometry. Additionally, the use of triangular prisms instead of rectangular and square prism geometries reduces the drag forces the pontoon will encounter during towing operations. Reducing the required drag force increases the towing speed of the pontoon and allows the operation to be carried out with tugboats that have lower towing force. In conclusion, due to the aforementioned drawbacks and the inadequacy of existing solutions in this area, an improvement in the relevant technical field has become necessary. Description and Purpose of the Invention: To fulfill the purposes described above, the invention is an innovation in semi-submersible barges that do not have their own propulsion system, are brought to a semi-submersible position by means of seawater drawn into ballast tanks with the help of pumps in the buoyancy towers on their sides to float the heavy structures on their deck, and enable the transfer of loads taken from the land via an auxiliary vessel by carrying out the floating process of the structure. - At least one triangular prism hull that holds the mooring towers together, reduces the resistance forces the pontoon will encounter during towing operations, increases the towing speed, and reduces the weight of the pontoon, allowing the operation to be carried out with tugboats with lower towing force, - At least one mooring device that allows the semi-submersible pontoon to be connected to the quay or offshore structures in the upper view of the deck level, - At least one manhole cover that provides access to the ballast tanks from the deck level, one for each ballast tank, - At least one generator located on top of the aforementioned mooring tower, which can be powered by electricity from the shore or can provide electricity when power supply from the shore is not possible, - Inside the mooring tower - At least one anchor located in the section where the pontoon cannot be moored to a quay or offshore structure, or for operations to be carried out in the open sea; - At least one anchor chain located inside the aforementioned buoy tower, which is the connecting apparatus for the aforementioned anchor; - At least one pump room located in the lower inner part of each buoy tower, which provides water intake to the ballast tanks; - At least one pump located inside the semi-submersible pontoon for the operator to fill and empty the ballast tanks; - At least one access ladder to provide access between the buoy towers and the aforementioned pump rooms; - At least two pump tunnels located at the bottom of the aforementioned deck level, which provide access between the aforementioned buoy towers; - The aforementioned deck level... The invention includes at least two buoyancy towers at the stern and at least one at the bow, which remain on top during diving, and at least one ballast tank located below the manhole covers, which is filled with seawater taken in or discharged by pumps, allowing the semi-submersible pontoon to be submerged to the desired height. The invention is inspired by existing conditions and aims to solve the shortcomings mentioned in the previous technique. The most important goal of the invention is to reduce the high weight of pontoons, which are produced for carrying cargo and require high strength to carry thousands of tons of offshore structures on deck, by having a triangular prism geometry instead of a square prism, while maintaining high strength. Another main goal of the invention is... The use of triangular prisms instead of rectangular and square prism geometries reduces the drag forces encountered by the pontoon during towing operations, increasing the towing speed and allowing the operation to be carried out with tugboats that have lower towing force. Another purpose of the invention is that, as mentioned above, the significant increase in the weight of semi-submersible pontoons due to the high strength required, the increased towing force needed during towing due to rectangular and square prism geometries, and the decrease in towing speeds increase the costs in operational and construction processes. Therefore, these problems are overcome with the help of triangular prisms, as mentioned above, and costs are reduced. The main feature of the invention is the triangular prism-shaped hull design, which allows for the construction of platforms with 25-30% less steel hull weight at the same lifting capacities, while maintaining high strength to carry loads weighing tons and reducing costs. Consequently, investment costs will be reduced by a similar percentage. Due to the platform geometry, it will encounter lower resistances, which will reduce operating costs. The reduction in operating costs is expected to vary between 5% and 20%, inversely proportional to the lifting capacity. Figures to Help Understand the Invention: Figure 1. Top perspective view of the innovation in the semi-submersible pontoon. Figure 2. Side view of the innovation in the semi-submersible pontoon. Figure 3. Top view of the innovation in the semi-submersible pontoon. Figures that will help to understand this invention are numbered as shown in the attached image and are given below with their names. Explanation of Part References in Figures A. Pontoon Deck Level B. Diving Draft C. Cargo Carrying Section D. Pump Room Cover 1. Innovation in the Semi-Submersible Pontoon 2. Hull 2.1. Mooring Equipment 2.2. Manhole Cover 3. Generator 4. Anchor 4.1. Anchor Chain Pump Room .1. Pump .2. Access Ladder .3. Pump Tunnel 6. Sephiye Tower 7. Ballast Tank Detailed Description of the Invention The semi-submersible pontoon (1) dives with seawater taken into the ballast tanks (7) by means of pumps (5.1) located in the pump rooms (5). The vertical distance between the diving draft (B) and the pontoon deck level (A) limits the buoyancy draft of the load to be taken on it for buoyancy. In other words, the marine structure to be floated must float before the diving draft (B). The pontoon deck level (A) is the part where the cargo placed in the load-carrying part (C) will be carried. Mooring equipment (2.1) is positioned on either side of the hull (2) for the purpose of connecting the semi-submersible pontoon (1) to the quay or offshore structures. Manhole covers (2.2) are installed under the load-carrying section (C) of the hull (2) to provide access to the ballast tanks (7). One manhole cover (2.2) is installed for each ballast tank (7). The buoyancy towers (6), two at the stern and one at the bow, which remain above the pontoon deck (A) during diving, rise from the corners of the hull (2) and provide protection for points that will not come into contact with the water, such as the pump room (5) and the generator (3). Access stairs (5.2) and a pump tunnel (5.3) are located to provide access between the Sephiye towers (6). An access system between the towers (6) has been created to intervene in any malfunctions that may occur in the pumps (5.1) and to provide passage between the towers (6) if needed. In addition, a pump room hatch cover (D) has been designed for each pump room (5) for repair and maintenance purposes. The semi-submersible pontoon (1) can be powered by electricity from the shore, and it has a generator (3) to meet its electricity needs in case it is operating offshore or if it is not possible to power it from the shore. It is capable of anchoring on its own with the help of its anchor (4) and anchor chain (4.1) when it cannot be connected to a quay or offshore structure with mooring equipment (2.1) or when it will carry out operations in the open sea. TR TR TR TR TR TR TR TR

Claims

REQUESTS At least one triangular prism body (2) that provides the transfer of the loads taken from the land by means of the assistant ship by means of the sea water taken into the ballast tanks (7) with the help of the pumps (5.1) in the buoyancy towers (6) located next to them for the purpose of floating the structures that do not have their own propulsion system, and that perform the buoyancy processes of the floating structure by means of the assistant ship, holding the buoyancy towers (6) together, reducing the resistance forces that the pontoon (1) will encounter during towing operations, increasing the towing speed and reducing the weight of the pontoon (1), thus enabling the operation to be carried out with tugboats with lower bollard force, at least one prism body (2) that is used to connect the semi-submersible pontoon (1) to the pier or offshore structures in the upper view of the deck level (A), one mooring equipment (2.1), at least one manhole cover (2.2) placed so that the deck level (A) provides access to the ballast tanks (7) and one for each ballast tank (7), at least one generator (3) located on the upper part of the buoy tower and which can be supplied with electricity from the shore or to meet the electricity needs in the open sea or in cases where supply from the shore is not possible, at least one anchor (4) located inside the buoy tower (6) in cases where the pontoon cannot be connected to the pier or offshore structure with the mooring equipment (2.1) or in operations to be carried out in the open sea, at least one anchor chain (4.1) located inside the buoy tower (6) which is the connection apparatus of the said anchor (4), At least one pump room (5) located on the inside bottom of each of them and providing water intake to the ballast tanks (7), at least one pump (5.

1), at least one access ladder (5.2) for access between the buoyancy towers (6) and the pump rooms (5), at least one pump tunnel (5.3) located at the bottom of the deck level (A) and providing access between the buoyancy towers (6), at least two buoyancy towers (6) located at the stern and at least one at the bow, which remain above the deck level (A) during the dive, and manhole covers (2.

2) Innovation in a semi-submersible barge (1) characterized by at least one ballast tank (7) located in the lower part of the barge, which is filled with sea water taken in or discharged by means of pumps (5) and which allows the semi-submersible barge (1) to be submerged to the desired height.