RU2473737C1 - Method of fitting floating body with funnel-like shell beds in unequipped bottom of water area - Google Patents

Abstract

FIELD: process engineering.

SUBSTANCE: method of fitting said body in unequipped bottom comprises filling inner cavities of said funnel-like shell beds with soil material. Said body is fixed in design position by installing it on mounting supports.

EFFECT: practically feasible installation, decreased labor input and material input.

2 cl, 9 dwg, 1 ex

Description

The invention relates to the construction and hydraulic engineering, in particular to a floating method of construction, and can be used to interface floating massifs with an unprepared bottom of the water area.

In construction and hydraulic engineering, it is generally accepted to call the foundation part of the structure, which transfers the efforts from this structure to the foundation. The term “foundation” in this document has exactly the same meaning: the foundation of a floating array is part of a floating array that transfers forces from this array to the base. At the same time, it is not significant how the connection of the foundation with the rest of the structure is realized: a completely rigid coupling or connection having spherical, cylindrical, translational joints.

The floating method of construction compared to the traditional (behind the lintels) provides a significant reduction in concrete consumption, facilitating structures, transferring the main, most complex works to the industrial conditions of the construction base and accelerating the pace of construction. One of the most important problems in the construction of structures by floating method remains the problem of pairing floating massifs with the bottom of the water area. Especially attractive in comparison with other options, such as, for example, the method of a lowering well, underwater concreting, construction of a pile foundation, the use of supports, development and excavation of the bottom of the water area, etc., it seems to solve this problem using floating arrays equipped with funnel-shaped foundations- shells, the inner cavity of which is filled with soil materials, subsequently performing the functions of artificial soil foundation. The funnel-shaped foundation shell is, as a rule, a vertically oriented shaft broadening downwards of a closed cross section of predominantly rectangular or square shape with two holes, one of which is located in the upper part and serves to load soil material, and the other, located below, is designed to provide contact of the artificial soil base with the natural base. Such foundations appeared relatively recently and the technology for the production of works on the device of their foundations has not yet received its proper development.

A known method of pairing a floating array having a funnel-shaped foundation-shell with an unprepared bottom of the water area, implemented in the design of the shut-off dam of the French PES Argenon and Lansie [Tidal power plants / LB Bernshtein, VN Silakov, S. L. .Gelfer and others; Ed. Dr. tech. Sciences of L.B.Bernshtein. - M .: Energoatomizdat, 1987. - 296 p .; fig. 13.3, d]. A method of pairing a floating array having a funnel-shaped foundation-shell with the bottom of the water area includes fixing the floating mass in the design position by introducing it into the soil of the bottom of the water area and filling the inner cavity of the funnel-shaped foundation-shell with a stone outline.

The disadvantage of the solution is the need to introduce the massif into the ground (by the caisson method) to fix its design position, which leads to an increase in the complexity and cost of work.

The objective of the present invention is to improve the manufacturability of the pairing of a floating array (surfacing structures) having funnel-shaped foundations, shells, with an unprepared bottom of the water area.

The object of the invention is a method for pairing a floating array having a funnel-shaped foundation-shell with an unprepared bottom of the water area, comprising filling with soil material the internal cavity of the funnel-shaped foundation-shell, characterized according to the invention in that the floating array is fixed in the design position by mounting it on the mounting supports.

Using the proposed method allows to avoid the development of soil at the bottom of the water area in order to ensure the design position of the array having funnel-shaped foundations-shells.

A new technical result compared with the prototype is to increase the manufacturability of the mating of a floating array having funnel-shaped foundations-shells, with an unprepared bottom of the water area, which is achieved due to the rejection of labor-intensive and dangerous caisson operations, as well as to reduce the height of the floating array and, as a result, in reducing the consumption of reinforced concrete.

The essence of the proposed method is illustrated by drawings:

- figure 1 shows a floating array with a funnel-shaped foundation-shell, the fixation of which in the design position is provided by installing it on the mounting supports;

- figure 2 is the same, but after completion of the filling of soil material into the inner cavity of the funnel-shaped foundation-shell;

- Fig.3-6 shows the design of the gravitational support block of the offshore platform, which is a floating array having funnel-shaped foundations, shells and mounting supports;

- Fig.7-9 presents the stages of the work of pairing the support block of the platform with the unprepared bottom of the water area.

The proposed method is as follows (see figure 1 and 2). A floating array having a funnel-shaped foundation-shell (1) is fixed in the design position using mounting supports (2) installed on the unprepared bottom of the water area (3), and the internal cavity of the funnel-shaped foundation-shell (1) is filled with soil material (4), which subsequently performs the functions of an artificial soil base.

The possibility of carrying out the claimed invention is shown by the following example.

Example No. 1. Installation of the support block of the offshore platform on the unprepared bottom of the water area.

The support block of the platform is a floating array with four tubular columns and funnel-shaped foundations-shells (see Fig.3-6).

The work is as follows (see Fig.7-9). The support block is positioned above the installation site at the bottom. Ballast the support block with water until it acquires negative buoyancy, as a result of which the support block sinks until the mounting supports come into contact with the bottom of the water area. Supports can be crushed into the ground by controlling the ballasting of the support block. After that, the internal cavities of the funnel-shaped foundations-shells are filled through their upper holes with incoherent soil, which, coming into contact with the surface of the bottom of the water area (natural base) and with the inner surface of the funnel-shaped foundation-shell, performs the functions of an artificial soil base. At the end, the calculated ballasting of the supporting block of the platform is performed.

In the same way, pairing with the unprepared bottom of the water area of other floating arrays of a similar design can be implemented: power transmission towers, monuments, bridge structures, dam blocks, PES, etc.

Claims (2)

1. A method of pairing a floating array having funnel-shaped foundations-shells with an unprepared bottom of the water area, comprising filling with soil material the inner cavity of the funnel-shaped foundations-shells, characterized in that the array is fixed in the design position by mounting it on the mounting supports. 2. The method of pairing a floating array having funnel-shaped foundations-shells with an unprepared bottom of the water area according to claim 1, characterized in that the ground material filling the internal cavities of the funnel-shaped foundations-shells is sealed with vibration.

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