RU1831546C - Self - lifting marine platform for hydraulic-engineering works and method now to do it - Google Patents

Abstract

Usage: in hydraulic engineering with the help of self-lifting platforms designed for the production of hydraulic works. SUMMARY OF THE INVENTION: a pontoon base of a self-elevating offshore platform for carrying out hydraulic works is provided with a turret with a horizontal console connected to an boom that is carried out overboard the platform, on which construction equipment is mounted, and the turret is made with a rotation and fixing mechanism interacting with the base. Sludge is driven into the soil through the pontoon and the retractable pile is pressed, the pontoon is lowered relative to the pile on the water, the sliding bearings are lifted above the ground and the pontoon is turned around the pile as the axis of rotation, then the supports 2 are lowered to the ground, they are pressed, the pontoon is raised above the water and carry out hydraulic work in another service area with construction equipment, for example, in a ring office. 2 sec. and 3 z.p. f-ly, 5 ill. fe

Description

The invention relates to the field of hydraulic engineering, in particular to self-elevating platforms for the production of hydraulic works, and methods for their implementation.

The purpose of the invention is to increase productivity and reduce the complexity of hydraulic engineering by reducing the permutations of the working platform while expanding the service area, as well as ensuring high accuracy of installation of building structures, including for ring-shaped structures.

Figure 1 shows the platform in operating position; figure 2 is the same. view from above; on the

FIG - platform, General view; figure 4 - platform in the stowed position; figure 5 - diagram of the drive platform in the working position.

The self-elevating marine platform contains a base in the form of a pontoon 1, mounted on sliding supports 2, and a lifting mechanism 3. In the geometric center of the pontoon 1 there is a pivoting Tower 4 with a horizontal console 5 and an outrigger 6, which is carried overboard the pontoon 1, on which construction equipment 7 is installed with the possibility of longitudinal movement relative to boom 6 by means of a drive (not shown). The console 5 of the tower 4 is supported on a ring

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rail 8 mounted on the pontoon 1. On the ring rail 8 is a turning and locking mechanism 9, made, for example, in the form of well-known hydraulic cylinders interacting with grippers (not shown).

In addition, the console 5 is equipped with an additional boom b1 with construction equipment 71, located opposite the boom 6.

To reduce the transport dimensions by lifting the booms 6 and 6 to a position close to the vertical ensuring operation in water areas with different depths, the booms 6 and b1 are connected by hinges 10 to the console 5 and are made with braces 11. A shaft is provided along the axis of the turret 4 12, through which a slide 13 extends to secure the platform during repositioning.

A movable butt 14 is mounted on the pile 13, to which the ends of the rods 15 are pivotally fixed, connected by opposite ends by hinges 16 with arrows 6 and 6. The arms 11 are fixed to the butt 14.

The method of carrying out hydraulic works using the proposed self-lifting platform is as follows.

Self-elevating offshore platform in the stowed position (figure 4) is transported to the area of hydraulic work. The platform is pointed at the setting point, after which the sliding supports 2 are lowered by means of lifting mechanisms 3 and the pontoon 1 is lifted above the surface of the water to prevent wave action on it.

The movable pile 13 is lowered through the shaft 12 of the rotary tower 4 and pressed into the ground, while the butt 14 with the rods 15 connected through hinges 16 with the arrows b and 6, together with the pile 13 is lowered to land on the rotary tower 4 and leads the arrows 6 and b through the hinges 10 relative to the consoles 5 in working condition, when the pins 11 hold the arrows 6 and 6 in a horizontal position. After this, further piling of the pile 1.3 into the soil is carried out movably relative to the butt 14,

 Construction equipment 7 and T, installed in the stowed position, on the console 5 are moved along the arrows 6 and 6 in the working position.

When the construction equipment 7 and 7 are operating, as necessary, the arrows 6 and b are rotated together with the turret 4 by means of the drive of the rotation and fixing mechanism

9, connected to the console 5 of the turret 4 and interacting with the ring rail 8. The coverage area of the booms 6 and 6 constitutes sector 180. To serve another sector, the pontoon 1 is lowered into the water in a floating position, the telescopic supports 2 are lifted above the ground and the pontoon 1 is rotated around the telescopic pile 13 as the axis of rotation, without losing the center of the circle during the construction of, for example, annular hydraulic structures. After turning the pontoon, the sliding supports 2 are lowered to the ground, crushed, the lifting mechanisms 3 raise

the pontoon 1 above the water and construction equipment 7 and 7 located on the booms 6 and 6, work is being carried out in another service area, for example, along an annular circuit. Thus, the proposed method and

the device increases productivity and reduces the complexity of hydraulic works due to the reduction of platform shifts while expanding the service area, and also provide high

such accuracy of installation of building structures, including for ring-shaped structures.

For example, the construction of a tongue and groove bar with a diameter of about 150 m with the use of.

We will use a standard platform of the Temp 1 type of project 10441 for the duration of the work of about 100 days, and with the use of the invention - 26 days, i.e. performance is quadrupled.

FORMULA AND SECTION

Claims (5)

1. Self-elevating marine platform for hydraulic works, comprising a base in the form of a pontoon mounted on sliding supports with construction equipment mounted on it, characterized in that the base is provided with a turret with a horizontal console connected to a boom handed overboard the platform on which the construction equipment is installed, while the turret is made with a rotation mechanism and fixation interacting with the base. 2. The platform according to claim 1, characterized in that the horizontal console is provided with an additional boom with construction equipment located opposite the first. . 3. The platform according to claim 2, characterized in that. that it is provided with a retractable pile for securing the platform during rearrangement. 4. The platform according to claim 3, characterized in that the retractable pile is equipped with a lug movably fixed in its upper part, and the arrows are pivotally connected to the console and are made with braces fixed to the aforementioned lug. 5. A method of carrying out hydraulic works by means of a self-elevating offshore platform, mainly with extendable supports, a pontoon base and construction equipment, including pointing the platform to the set point, lowering the extendable supports, and deepening them into the ground and directly carrying out hydraulic works by the construction equipment in the service area, characterized in that the pull-out pile is driven into or pushed into the soil through the pontoon, the pontoon is lowered relative to the pile on the water, the pull-out supports are lifted above the ground and the pontoon is turned around the pull-out pile as rotation axes, then the draw-down supports are lowered to the ground, they are filled with water, a pontoon is raised above the water and hydraulic works are carried out in another service area with construction equipment, for example, along an annular circuit. W Phage 1 fig 5 7