Method to perform underwater technical works during installation of bulk items and device for its realisation

FIELD: construction.

SUBSTANCE: method to perform underwater technical works during installation of bulk items includes delivery of an item in the form of a box caisson to the place of installation, its flooding and assembly with the help of a cargo barge and a floating lifting facility. Delivery is carried out using a double-hulled watercraft made as capable of placement of the loaded barge in the space between pontoons that form the double hull and are connected to each other with metal frame structures with weight-lifting facilities for lifting and lowering of the box caisson, and also equipped with structures having extended elements, providing for retention of the box caisson as it is delivered to the place of installation. The barge with the box caisson of full availability is driven in the water area in the space between pontoons of the double-hulled watercraft, the box caisson is lifted with the help of its weight-lifting facilities, the unloaded barge is driven from the space between the pontoons into the water area, the box caisson is lowered for its installation onto extended elements, the specified elements are extended with the help of a drive, and the box caisson is rested onto them. The watercraft with the box caisson by self-motion or towing is delivered to the place of works production, the watercraft is moored, and the box caisson is flooded and installed by release from extended elements that retain it using weight-lifting facilities, which are installed on the watercraft.

EFFECT: optimised technology and reduced costs for production of underwater technical works during assembly of bulk items and structures.

7 cl, 5 dwg

 

The invention relates to hydraulic construction, in particular to the construction of piers, underwater walling, artificial island, subsea protective structures on the shelf.

It is known that during the construction of the piers of floating caissons method of delivery of arrays giant floating way with their subsequent flooding and loading ballast (Ugualmente "berths" - M.: Transport, 1981, p.106-111, 170-173).

A known method of construction of berths is characterized by a high volume of work due to the complexity of the run at large depths operations installation under water floating caissons and download the ballast, as well as the need for the installation of such objects floating cranes large capacity.

There is a method of block-modular construction of hydraulic structures in underwater excavations, adopted as a prototype, which consists in the fact that the block-modules prefabrication delivered to the construction site on barges, platforms and set in the design position underwater base in one or more layers using a floating lifting means high capacity, while the barge-platform with the block module is set on the underwater excavation, using floating lifting means implementing tlaut astropulse and the rise of the units above the barge deck, take a barge-pad from under the block-module, then the unit is lowered and set in the design position underwater base, block-modules structures fasten to each other and sealed by the mating parts with the quick-connect devices (patent RF №2401356 C1, priority date 17.02.2009, publication date 10.10.2010, the authors V.A. Kiselev, etc., RU, prototype)

The disadvantage of this method, adopted as a prototype, is the high complexity of the work, as well as the costs caused by the use of floating lifting means high capacity, and complexity of maneuvering barges at the place of installation works.

Known lifting means high capacity, used in the method according to the patent of Russian Federation №2401356 comprising a floating base in the form of the hull and installed on it lifting boom lifting device made balanced on the rotary column containing the bulk of the cargo boom and auxiliary counterbalanced boom hinged on her external counterweight connected polyspastny systems, and relies on the support cylinders and lifting heavy products perform multiple lifting devices installed on the same hull, working jointly and synchronously, with the possibility of changing the distance between the load suspension points, depending on the length and mass distribution raised products, samokleyushchikhsya in the transport position at an angle relative to the longitudinal axis of the vessel (patent RF №2320529 C1, the priority date of dated 25.05.2006, publication date 27.03.2008, the authors V.A. Kiselev, etc., EN).

A disadvantage of the known device is the design complexity and high intensity, and therefore, economically viable use of this construction to perform work on lifting, installation and overload supertiling and superhumanity products.

Famous boats catamaran base type to perform rescue operations, for example for lifting emergency submarines (patents of the Russian Federation№№2284277, 2328405, 2377155, 2388648). Each of them has a special purpose and are not suitable for installation under water, for example, arrays giants, as placebos catamaran combined into a single structure with bow and stern so that between them it is impossible to enter a barge with an array of giant.

Known complex for lifting sunken object, taken as a prototype device that includes a base ship-catamaran, consisting of two buildings placed on it lifting mechanism in the form of a bridge crane, associated with steel wire, kanatas traverse, equipped with a lifting device and a rocket propulsion unit with adjustable thrust, while lifting device made in the form of pivotally mounted on the transverse lever is kinematically connected with it by means of a power cylinder and cooperating with a sunken object (patent RF №2366591 C1, priority date 07.05.2008, publication date 10.09.2009, author Tarasov WD, RU, prototype)

The drawback of the device, taken as a prototype, is of limited use associated with lifting objects and unsuitability for installation under water.

The objective of the invention is to optimize the technology and reducing the cost of manufacture of underwater technical works during installation of large objects and structures.

To solve this problem the method of manufacturing underwater engineering works during installation of large objects, including delivery of object in an array-giant to the place of installation, its flooding and installation using cargo barges and floating lifting means according to the invention, it is carried out using boats catamaran base type, made with the possibility of placing the loaded barges in the space between the forming catamaran pontoons interconnected metal frame structures with lifting medium spans the you for lifting and lowering a massive giant, and also have designs with sliding elements ensures retention of the array-giant at its delivery to the installation site, the barge with an array of giant cooked wind on the water area in the space between the pontoons boats catamaran base type, is lifted by means of its lifting means an array of giant, is removed from the space between the pontoons in the water area of the unloaded barge omit the array-giant for laying it on the sliding elements to bring these items with drive and relies on them an array of giant, floating with an array of giant roll off or towing delivered to the work site, moor the craft and implement the flooding of the array-giant and installation of exemption from restraint of his retractable elements using the lifting means, which are equipped with the craft.

According to the invention, the method can be applied to arrays giants in the form of a parallelepiped.

According to the invention, the method can be applied to arrays giants in the form of a truncated parallelepiped with a beveled base, or made with regard to the topography of the underwater surface, when they perform with the response niches-jacks, interacting with the corresponding sliding elements that hold an array of giant, and rabaut at the base of the ground tabs.

According to the invention, the method can be applied to an array of giant, formed of small objects by combining them on the platform in a large module.

According to the invention, in the method using arrays giants with permeable walls and waterproof walls and bulkheads.

To solve the problem in the craft catamaran base type, including the joint between the pontoons placed in between lifting and hoisting machinery, according to the invention, the pontoons in the United catamaran metal frame structures with location between cargo vessels with large objects in the fore and aft parts of the boats are equipped with removable transitional bridges, building each of the pontoons are equipped with structures with sliding elements-polubinski, which support elements cantilever type, located in the upper part and/or in the bottom of the hull of the pontoon and operated by hydraulic or mechanical servomotors with their corresponding actuators, metal frame equipped with polyspastny pendants and traction winches, forming a lifting and traction system, and on the deck of the watercraft installed mooring winch.

According to the invention, the design vidigreet.com-poloumnim, controlled hydraulic actuator supplied is made in the case of pontoon guide, probems, guide hermetically connected with the end wall of the hydraulic cylinder, and the movable rod of the hydraulic cylinder is connected to poloumnim, while the hydraulic cylinder is connected with the supply system of the liquid in the cavity containing the injection pump.

1 schematically depicts a craft catamaran base type used in the production method of underwater engineering works during installation of large objects as arrays giants, General view; figure 2 is a top view; figure 3 shows the craft with designs of retractable elements polubesova located in the bottom; figure 4 shows a scheme of a sliding element polubelca using the hydraulic actuator; figure 5 (a, b, C) shows the shapes of the blocks used in the method.

The craft catamaran base type used in the production method of underwater engineering works during installation of bulky objects, for example in the construction of the piers of floating caissons formed of two pontoons 1, combined in a catamaran metal frame structures 2 with location between barges with an array of giant 3 designed for installation under water (conventionally not shown). To ensure ill the bone structure and manufacturing operations in the bow and stern of the craft is fitted with removable transitional bridges 4, partially relieve the metal frame 2 from the action of bending moments. The case of each of the pontoons 1 equipped designs with sliding elements-polubinski 5, designed for the installation of the array-giant 3. Retractable elements olubisi 5 are support elements of the cantilever type and are located in the upper part of the body of the pontoon, as shown in figure 1, or in the bottom 3. This arrangement retractable elements polubesova relates to the form of execution was fixed on them floating caissons 3. To install the array of giant flat shape of the base, as shown in figure 5(a) or 5(b)are retractable elements olubisi above, and to install a massive giant with a beveled base, as shown in figure 5(b)are retractable elements olubisi that are located below. This secured them an array of giant fitted with made it return niches-jacks 6, which interacts with the lower retractable members polubinski. The most optimal variant in which design with retractable elements-polubinski 5 is installed in the upper part and the bottom of the hull of the pontoon (conventionally not shown). To control the sliding elements-polubinski 5 buildings pontoons installed hydraulic servomotor with actuator. With vomitory may also be in mechanical design with rack-and-pinion, screw, etc. movement mechanisms (not shown conventionally). However, each must have its own drive. The most effective is the use of a hydraulic motor with a hydraulic drive. The design with retractable element poloumnim controlled hydraulic actuator supplied is made in the case of pontoon guide 7, which features a retractable element probems 5. Guide 7 is hermetically connected with the front wall 8 of the cylinder 9, and a movable rod 10 of the hydraulic cylinder with the piston 11 is connected with a sliding element poloumnim 5. When the cylinder 9 is connected with the supply system of a liquid in a cavity containing a pressure pump 12 and the elements of the system the fluid in the cylinder cavity, in the form of automatically-controlled locking devices 13, 14, 15, 16, 17. To ensure the fluid in the cavity of the working cylinders involved one pressure pump 12.

Metal frame construction 2 connecting the chassis of the pontoons 1 in the fore and aft fitted with polyspastny pendants 18 and traction winches 19 forming the lifting and traction system that allows you to find the optimal conditions of tractive effort on the winches and polyspastny suspensions when conducting business operations.

On the deck of the craft in the fore and aft parts of the set t is the train mooring winch 20, used for boats at a given point.

Method for the production of underwater technical works during installation of bulky objects, for example in the construction of the piers of floating caissons using published boats catamaran base type is as follows. It is assumed that the arrays giants made and load ballast on the surface. While the blocks of floating caissons can be of any shape, as shown in figure 5 (a, b, C). However, they can be made with the holders 21 in the base may be formed of compact objects by combining them on the platform 22 in a large module, and the array enclosure-giant to reduce adverse seepage impacts and their control comply with permeable or impermeable sides and bulkheads (not shown conventionally). Ready arrays giants, for example, on the barge-platform deliver on the specified gear. Barge-pad is slid into the space between the pontoons 1 catamaran in the water zone and fail under load lifting polyspastny suspension 18. Using the lift-propulsion systems catamaran array-giant 3 is lifted to a height sufficient for the removal of the barge and extensions polubesova 5. Then the barge is taken out into the waters. Then by means of a hydraulic drive in the move olubisi 5, for example the top or deck, on which omit the array-giant 3. When using the lower or submerged sliding elements polubesova array-giant feature with the possibility of their interaction with the response niches-jacks 6 array-giant. After installation of the array of giant retractable elements olubisi 5 raskrepljajut. Next catamaran roll off or towing transported to the place of laying array-giant on the ground. With the approach of the boat to the dive sites of the array of giant ground catamaran exhibited in the estimated target and escalivada mooring kranzo with mooring winches 20. When immersing the array of giant under water is possible maneuvering hull catamaran with mooring winches 20. Polyspastny suspension 18 catamaran allow you to adjust the speed of immersion and precision to set the array-giant on the ground with regard to pitch and roll.

The advantage of the proposed method of production of underwater technical works during installation of large objects is to simplify the technology and reducing the cost of manufacture of underwater technical works during installation of large objects and structures through the use of for its implementation of pleurodema catamaran base type, which allows to optimize the technology and refuse to use design, the sports complex and expensive floating crane large capacity.

1. Method for the production of underwater technical works during installation of large objects, including delivery of object in an array-giant to the place of installation, its flooding and installation using cargo barges and floating lifting means, characterized in that it is carried out using boats catamaran base type, made with the possibility of placing the loaded barges in the space between the forming catamaran pontoons interconnected metal frame structures with lifting means for lifting and lowering a massive giant, and is also provided with structures with sliding elements ensures retention of the array-giant at its delivery to the place of installation, when this a barge with an array of giant cooked wind on the water area in the space between the pontoons boats catamaran base type, is lifted by means of its lifting means an array of giant, is removed from the space between the pontoons in the water area of the unloaded barge omit the array-giant for laying it on the sliding elements to bring these items with drive and relies on them an array of giant, floating with an array of giant roll off or towing delivered to the work site, moor the craft and implement the flooding of massimiliana and installation of exemption from restraint of his retractable elements using the lifting means, which are equipped with the craft.

2. Method for the production of underwater engineering works according to claim 1, characterized in that it can be applied to arrays giants in the form of a parallelepiped.

3. Method for the production of underwater engineering works according to claim 1, characterized in that it can be applied to arrays giants in the form of a truncated parallelepiped with a beveled base or made with regard to the topography of the underwater surface, when they perform with the response niches-jacks, interacting with the corresponding sliding elements that hold an array of giant, and provide the basis of ground tabs.

4. Method for the production of underwater engineering works according to claim 1, characterized in that it can be used an array of giant, formed of small objects by combining them on the platform in a large module.

5. Method for the production of underwater engineering works according to claim 1, characterized in that it uses arrays giants with permeable walls and waterproof walls and bulkheads.

6. The craft catamaran base type, including the joint between the pontoons located between lifting and hoisting machinery, characterized in that the pontoons in the United catamaran metal frame structures with the ability dissolved, and the situation between them cargo vessels with large objects in the bow and stern of the craft is fitted with removable transitional bridges, building each of the pontoons are equipped with structures with sliding elements-polubinski, which support elements cantilever type, located in the upper part and/or in the bottom of the hull of the pontoon and operated by hydraulic or mechanical servomotors with their corresponding actuators, metal frame equipped with polyspastny pendants and traction winches, forming a lifting and traction system, and on the deck of the watercraft installed mooring winch.

7. The craft catamaran base type according to claim 6, characterized in that design with a sliding element poloumnim controlled hydraulic actuator supplied is made in the case of pontoon guide, probems, guide hermetically connected with the end wall of the hydraulic cylinder, and the movable rod of the hydraulic cylinder is connected to poloumnim, while the hydraulic cylinder is connected with the supply system of the liquid in the cavity containing the injection pump.



 

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