RU50553U1 - SPATIAL FOUNDATION PLATFORM FOR UNITS WITH DYNAMIC LOAD FOR CONSTRUCTION ON WEAK AND PERMANENTLY FROZEN SOILS - Google Patents

Abstract

The invention for a utility model is a spatial foundation platform for units with dynamic load for construction on soft and permafrost soils under oil and gas pumping units. The objective of the invention is to increase the efficiency and operational reliability of the foundations for units with dynamic load, working on soft and permafrost soils. Spatial foundation platform for aggregates with dynamic load for construction on soft and permafrost soils, including solid-state slab elements, in which the design of the spatial foundation platform is shaped not from one thin plate, but from the upper and upper layers joined together. lower reinforced concrete thin ribbed slabs interconnected by a system of cross reinforced concrete beams, trusses or metal spatial trusses, forming in cross sections a system of multi-I-profiles, which form a ventilated underground and can be filled up with compacted soil to increase the attached mass to the foundation, the foundation platform is installed on a level base without deepening into the ground and has in plan a large area that extends beyond the unit.

Description

The invention for a utility model is intended for the construction of a spatial foundation platform on soft and permafrost soils with dynamic load under oil and gas pumping units.

The closest analogues are slab foundations of a continuous cross section, which are installed on piles (see S.E. Kaganovskaya, N.A. Glikman, R.M. Makar Foundations of gas and oil pumping units of main pipelines, M., Nedra, 1991 with . 51, Fig. 26.). These foundations do not have sufficient bending stiffness to penetrate into the soil and work due to the large mass of reinforced concrete, as well as the attached mass of soil. The use of these foundations for permafrost soils has not been developed.

The disadvantages of this design include the small bending stiffness of these foundations with a significant consumption of reinforced concrete. To increase bending stiffness, you need to increase material consumption,

which leads to a rise in the cost of foundation construction. Foundations are arranged, as a rule, buried in the ground. They are inconvenient to use the “attached” soil mass (in order to improve the dynamic characteristics of the slab foundations), since the attachment of the ground mass requires additional costs to ensure adhesion to the used designs of slab foundations (corrugated or folded surfaces). All this requires a greater consumption of materials and leads to an increase in complexity. In addition, it should be noted that they are not suitable for use on permafrost soils, as for permafrost soils, either a foundation on bedding or a foundation with a ventilated underground is used. In heated buildings, heat loss through thin slab foundations is significant, because they do not contain effective thermal insulation.

In general, such slab foundations do not have proper efficiency under dynamic load and operational reliability, especially on soft and permafrost soils.

The objective of the invention is to increase the efficiency and operational reliability of the foundations for units with dynamic load, working on soft and permafrost soils.

Spatial foundation platform for units with dynamic load for construction on soft and permafrost soils, made in the form of slab elements of a continuous arrangement for units, in which

the design of the spatial foundation platform is shaped not from one thin plate, but from the combined upper and lower reinforced concrete thin ribbed plates interconnected by a system of cross reinforced concrete beams, trusses or metal spatial trusses, forming in cross sections a system of multi-I-profiles that form ventilated underground and can be filled up with compacted soil to increase adjoining

the mass to the foundation, the foundation platform is installed on a leveled base without being buried in the ground and has in plan a large area that extends beyond the unit.

The proposed design of a spatial foundation platform for aggregates eliminates the noted drawbacks due to the configuration of the platform both in cross-section and in plan, it has a large bending stiffness with a relatively low material consumption, a large bearing area, a large spatial rigidity of the ground location without deepening, ease of attachment of the attached mass soil filling the interfundament compartments, with ventilated underground channels. The spatial platform is installed on a leveled base without being buried in the ground and does not require the use of piles.

Reinforced concrete spatial foundation platforms (prefabricated and monolithic) are offered.

A useful model is presented in figure 1.

The spatial foundation platform for dynamic load aggregates for construction on soft and permafrost soils 1 contains interconnected upper 2 and lower 3 thin reinforced concrete slabs interconnected by a system of cross reinforced concrete beams, trusses 4 or metal spatial trusses forming a double-tee system in cross sections profiles with the formation of interfoundation space in the form of a ventilated underground 5. The base platform is installed aligned base without deepening in soil. The design of the spatial foundation platform for units with dynamic loading can be prefabricated, shaped from unified ribbed plates and beams or metal trusses ..

The interconnected upper 2 and lower 3 thin reinforced concrete slabs and beams 4 form compartments of the inter-foundation space in the form of a ventilated underground 5, conveniently adapted for backfilling

compacted soil (crushed stone, expanded clay, slag), as a joining mass to improve the dynamic characteristics of the spatial foundation platform. A combination of a ventilated underground device with a partial filling of the inter-foundation space with a compacted mass is possible, which makes it possible to control the frequency of foundations, as well as by increasing the area in plan and its configuration.

The ventilated underground 5 of the inter-foundation space between plates 2 and 3 and beams 4 with backfill with compacted soil or gravel can be used as a heat-shielding device, if necessary (in heated buildings, a protective embankment to prevent thawing of permafrost soils), or they can be used as a ventilated underground in the conditions of permafrost. The base platform rests on a leveled base 6 without being buried in the ground.

A variant of the prefabricated spatial foundation platform for the gas pumping unit GPA-Ts-16, corresponding to the specified source (analogue) of unified thin reinforced concrete slabs of 3x6 m, is shown in figure 1. On the leveled base 6 without burial, the bottom 3 thin reinforced concrete slabs are laid upside down, connected to the upper 2 reinforced concrete slabs by a system of cross reinforced concrete beams 4, trusses or metal spatial trusses, forming in cross sections a ventilated underground 5 of the interfoundation space, which can be filled up with compacted soil to increase the attached mass to the foundation.

Thus, the proposed design of a reinforced concrete spatial foundation platform for aggregates with dynamic load, in special conditions of soils, has the following advantages:

• the bending stiffness of spatial platforms is 50-100 times greater than that of slab foundations of a continuous cross-section

due to the fact that their design is not formed from one thin slab, but contains interconnected upper and lower reinforced concrete thin slabs interconnected by a system of cross beams (trusses), forming in cross sections a system of multi-I-profiles with high bending stiffness , with the consumption of material similar to slab foundations. This design is insensitive to uneven soil deformations and is adapted for the perception of dynamic vibrational loads from units;

• spatial platforms can effectively prevent possible additional (including dynamic) precipitation and reduce foundation vibrations, because due to the attached mass of soil and an increase in the area of the base of the foundation, which exerts little pressure on the soil;

• the surface of the foundation platform is not buried in the ground, which makes their structures much more economical and allows their use in permafrost soils;

• the ventilated underground, formed in the inter-foundation space (between the plates and the beams connecting them), is conveniently suitable for backfilling with compacted soil (gravel, etc.), full or selective, as an attached mass, which allows adjusting the dynamic characteristics of the spatial due to the placement topology foundation platform;

• in the case of permafrost soils, the interfoundation space is used as a ventilated underground to preserve the properties of permafrost soils. In this case, a combined version of a ventilated underground with partial backfill of soil or preservation of ventilation ducts in the soil is possible. In the north, when erecting foundations on permafrost soils, the design of the proposed reinforced concrete spatial foundation is

the platform for dynamic load units has no world analogues;

• the construction of foundation platforms can be reinforced concrete, prefabricated from slabs and beams, monolithic, and steel and reinforced concrete, when a metal truss is used instead of beams.

Claims (1)

Spatial foundation platform for aggregates with dynamic load for construction on soft and permafrost soils, including solid-state slab elements, characterized in that the design of the spatial foundation platform is shaped from interconnected upper and lower reinforced concrete thin ribbed plates interconnected by a system of cross reinforced concrete beams I-profiles, for example, trusses or metal spatial trusses that form a vent emoe underground backfill, with its packed with soil to increase the added mass to the foundation, the foundation platform is mounted on the aligned foundation without penetration into the ground.