RU2619604C1 - Structure for forming on construction site section for water passage - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: structure for forming the section for water passage at the construction site is made in the form of a concrete matrix helically wound in layers on a support cylinder, including a spiral reinforcing cage with culvert pipes fixed thereon. Each spiral layer of the cage is placed between the upper and the lower water-permeable Concrete Canvas of the concrete matrix, filled with dry concrete mixture.

EFFECT: simplified design.

7 cl, 3 dwg

Description

The invention relates to the field of arrangement of roads and, in particular, to structures for forming a section at the construction site for water passage.

Known structures for water passage in the form of pipes with openings of round, rectangular or ovaloidal cross-section and with sizes up to 4-5 m (EE Gibshman. Bridges and structures on roads. M: Transport, 1973, pp. 224, 225 Fig. 114, 115).

The disadvantage of the design of such pipes is that, with low embankments and high water flow rates, it is necessary to install two or more culverts in parallel, which entails the complexity of the design and manufacture, delivery to the construction site of the structures, an increase in concrete consumption, an increase in the complexity and cost of work .

The Concrete Canvas concrete panel is also known, which is a flexible, two-layer fabric, inside of which a dry concrete mixture is laid, hardening upon wetting and forming a thin layer of concrete [CONCRETE CANVAS ™, www.c-can.ru].

The disadvantage of this solution is the complexity of the formation of tubular structures, which reduces the effectiveness of its use.

The closest technical solution is a culvert in the form of a reinforced concrete pipe, consisting of a steel cylinder and a concrete matrix, including spiral reinforcement [RU, No. 2205752, MPK V28V 21/58, 2003].

The disadvantage of reinforced concrete pipes is the complexity of the design and manufacture, as well as the increased complexity of delivery to the construction site and its installation, which reduces the efficiency of its use.

The objective of the invention is to provide a structure for the formation at the construction site of a cross section for water passage, which allows to simplify the design, increase the manufacturability of the erection and throughput of the structure.

When creating the present invention, the task was to develop a more efficient design for forming a section for water passage at the construction site due to the development of a quick-built structure with any section of the hole for water passage, making it possible to adapt it to the selected relief and to maintain stable culvert mode.

The technical result is to simplify the design, reduce the material consumption, the complexity and timing of the erection of the culvert due to the refusal to use and transport massive reinforced concrete pipes, which practically leads to the refusal to use powerful crane means and vehicles, the refusal to perform significant preparatory excavation work, to increase the manufacturability of the construction and water throughput of the structure due to the formation of any section for water passage at the construction site Twa.

The task and the specified technical result is achieved by the fact that in the design for forming at the construction site a section for water passage, made in the form of a reinforced concrete pipe, consisting of a steel cylinder and a concrete matrix, including spiral reinforcement, it is made in the form of layer-wound spiral wound concrete matrix on supporting cylinder, consisting of a spiral reinforcing cage, with culverts fixed to it with adhesive tape, each spiral layer of which is placed between the upper and These permeable bunting Concrete Canvas concrete matrix filled with a dry concrete mixture, the lower layer of water-permeable material web Concrete Canvas can be filled with fiber-reinforced concrete mix. In addition, culverts can be made in the form of channels formed by an inflatable mattress located inside the concrete matrix, which, after the concrete mixture has hardened, are cut off from the ends, and also in the form of discrete segments located at intervals between each other, while inside the support cylinder, according to axis, a central culvert canal is formed, formed by support rings fixed to the transverse edge of the spiral reinforcing cage, and the spiral reinforcing cage can be connected to an electrical circuit.

The design of the reinforcing spiral cage for the entire diameter of the reinforced concrete pipe, in contrast to the prototype, where the spiral is twisted along the length of the pipe, securing on its surface along the axis of the polymer pipes allows you to make a reinforced concrete pipe directly at the selected construction site, which, firstly, simplifies and speed up the construction process of the structure to form a section for water passage at the construction site, and secondly, increase the strength of the culvert through the formation of a support cylinder in the idea of a monolithic-reinforced spiral frame along its entire cross section - unlike the prototype, where the spiral is twisted only in length, thirdly, to regulate the diameter of the structure to form a section for water passage at the construction site, setting the required section size for the passage at the construction site water, and the flow rate of water passage, changed by the quantitative set and diameter of the fixed polymer pipes. In addition, the implementation of pipes made of polymeric material, mounted on a spiral frame, eliminates their corrosion and reduces the resistance to water flow, which is inherent in concrete pipes. Using adhesive tape as a fastener, in contrast to using reinforcing wire or clamps, simplifies the fastening process and reduces the cost.

The conclusion of each layer of the reinforcing spiral cage (top and bottom) in Concrete Canvas water-permeable panels filled with dry concrete mix allows, firstly, to create a reinforced monolithic strong matrix over the entire cross section of the reinforced concrete pipe, which allows the use of lower grade concrete in strength, and secondly, it allows on-site production to be carried out without preparation of concrete mix or the use of finished reinforced concrete pipes, and the refusal to use additional equipment.

The execution of the lower layer of the permeable fiber reinforced concrete panel allows to increase the crack resistance of the reinforced concrete pipe, which is especially important for its upper layers, which absorb the main loads and are exposed to the physicochemical environment.

The implementation of each layer of an air mattress with a cavity inside instead of a reinforcing spiral cage allows, firstly, to simplify the design and increase water throughput by increasing the total cross-sectional area of the formed channel, and, secondly, to maintain and maintain the shape of the spiral when the sheets are soaked in the process of twisting them. Moreover, the implementation of the outer layers from panels filled with fiber-reinforced concrete mixture allows you to create a rigid reinforced shell for the layers of the mattress and, in general, to make a durable reinforced concrete pipe.

The design of the culverts is discrete - in the form of segments installed at intervals, which allows to reduce the consumption of pipes and use waste. The distance of the gaps is set taking into account the prevention of sagging of the panels between the pipes.

Performing along the axis of the reinforced concrete pipe of the central channel formed by support rings fixed to the transverse edge of the spiral reinforcing cage, allows increasing the water throughput of the reinforced concrete pipe due to the possibility of forming holes of any diameter, for example, a larger diameter, taking into account that the flow rate at the inlet is maximum in the central her zone.

Connecting the reinforcing spiral cage to the electric circuit allows it to heat the pipes and thereby prevent them from clogging during icing and, accordingly, increase the efficiency of the spiral conduit.

The structure for forming a section for water passage at the construction site is illustrated by drawings, where in FIG. 1 shows a structural diagram; in FIG. 2 - node I (arrangement and mounting of pipes); in FIG. 3 is a structural diagram of the use of an air mattress.

In FIG. 1 - FIG. 3 is indicated:

1 - base; 2 - spiral reinforcement cage; 3 - polymer pipes; 4 - a collar; 5 - lower panel with a dry concrete mixture Concrete Canvas; 6 - top panel with a dry concrete mixture Concrete Canvas; 7 - an air mattress; 8 - support ring.

Thus, a design was created for the formation at the construction site of a cross section for water passage for road construction, the effectiveness of which consists of the following factors:

- refusal to perform a large amount of soil work related to the organization of artificial foundation and formwork;

- refusal to manufacture and transport reinforced concrete pipes;

- refusal to prepare concrete mix;

- the possibility of manufacturing a structure for forming a section at the construction site for water passage with a given water flow at the construction site;

- the possibility of using technology of quickly erected structures to form a cross section for water passage at the construction site based on the introduction of the method of single-stage formation of a reinforced concrete pipe.

The design for forming a section for water passage at the construction site consists of a reinforced concrete pipe installed on the base 1, including a spiral reinforcing cage 2, twisted into a spiral over the entire diameter of the pipe, with polymer pipes 3 fixed on its surface with a given diameter d and a given pitch t using adhesive tape 4, and each layer of the reinforcing spiral reinforcing cage 2 is enclosed in permeable panels 5 and 6 Concrete Canvas, filled with dry concrete mixture (Fig. 1 and Fig. 2). The diameter d of the polymer pipes and the step t are assigned taking into account the volume of water passed through the culvert.

To increase the strength of the outer layers of the reinforced concrete pipe, the bottom layer of the 5 Concrete Canvas permeable sheet is filled with a dry fiber concrete mixture.

In order to simplify the design and construction technology of a quick-erect structure for forming a section at the construction site for water passage in a reinforced concrete pipe, instead of a reinforcing spiral frame with pipes, a cavity is formed - a channel formed from an inflatable cloth in the form of a mattress 7 with a cavity inside, which is enclosed in layers of permeable panels Concrete Canvas 5, 6 with a dry fiber-reinforced concrete mixture (Fig. 3).

In the absence of pipes of the required length, and also in order to reduce the cost of constructing the structure to form a cross section for water passage at the construction site, pipe sections are discretely fixed at intervals with reinforced casing 2 instead of whole pipes.

To increase the throughput of the structure along the axis of the reinforced concrete pipe, a central channel is formed, formed by support rings 8, mounted on the transverse edge of the spiral reinforcing cage 2 (Fig. 1).

In order to maintain the performance of the reinforced concrete pipe when exposed to negative temperatures and to protect the pipes from icing, the beginning and end of the spiral reinforcing cage are connected to a power source.

The design for the formation at the construction site of the cross section for water passage is mounted and operates as follows.

A reinforcing cage 2 twisted at the construction site on the base 1 with spiral pipes 3 fixed on it and enclosed in watertight Concrete Canvas panels filled with dry concrete mix and spilled with water, forms a monolithic reinforced concrete pipe after hardening concrete (Fig. 1). At the same time, the spiral reinforcing cage is also used as a supporting structural element of the reinforced concrete pipe, which during its formation serves to maintain the shape of the cylinder during spiral rotation, as well as during installation and subsequent work, preventing it from bending. When the structure is used to form a cross section for water passage at the construction site, water enters the reinforced concrete pipe inlet from one end and, passing through polymer pipes 3, flows out from the other side. At the same time, the spiral reinforcement cage 2 provides the rigidity of the monolithic structure of the reinforced concrete pipe.

When using Concrete Canvas permeable panels in the form of layers protecting the reinforcing cage, there is no need to use formwork and concrete preparation. In this case, a reinforced concrete pipe is formed in the process of spilling panels of water and subsequent hardening of the mixture.

To absorb the increased loads and increase the frost resistance of the outer layers of the water conduit, the lower layer of the Concrete Canvas permeable sheet is filled with a dispersion-reinforced mixture (fiber-reinforced concrete mixture). The dispersed fibers that make up the dry concrete mix during the hardening process will perform the function of reinforcing the concrete matrix, thereby increasing its crack resistance and frost resistance.

The design can be greatly simplified if, instead of a reinforcing spiral cage with pipes, an inflatable sheet with a cavity inside it in the form of a mattress 7, enclosed in layers of Concrete Canvas 5, 6 waterproof sheets, is installed (Fig. 3). The result is a design consisting of two types of layers: one layer, made of Concrete Canvas panels, is a structural layer and serves to absorb the load, and the second layer, made in the form of an air mattress, serves to transport water. In this case, having pumped air into the panel in the form of a mattress, we get one spiral cavity formed by two Concrete Canvas panels. After hardening of concrete and trimming the ends of the panel in the form of an inflatable mattress, one whole spiral cavity is formed - a channel for water passage.

In the absence of a sufficient number of pipes of the required length, the channels can be formed from pipe segments (waste) laid at intervals between each other. In this case, the channels for transporting water will be formed by pipe sections and spaces between them formed by the hardened Concrete Canvas.

To increase the water passage or in the absence of a pipe of the required diameter in the structure to form a section for water passage at the construction site, a central channel is created by installing rings of a given diameter. For this, after laying the frame and permeable panels, the support rings 8 (Fig. 1) and then the reinforced concrete pipe are fixed in width at their end, repeating the operations as described above. These rings support the panels from sticking during the formation of the spiral. To make these rings is not difficult, for example, from reinforcing bars or strips. By setting the diameter of the rings, it is possible to adjust the diameter of the central culvert channel, and accordingly, the flow rate of the transported water, which increases the efficiency of the structure to form a section for water passage at the construction site.

To protect the pipes from icing, the beginning and end of the reinforcing cage is connected to a power source. When the weather conditions worsen due to the impact on the construction of negative temperatures, include a power source. At the same time, the reinforcing cage is heated due to the passage of current, warming up the pipes and preventing the ice formation process from developing, thereby preventing their blockage.

The design for forming a section for water passage at the construction site was modeled in the construction laboratory of the PSK TvSTU department and showed its operability, which indicates the possibility of effective implementation of the claimed technical solution in real construction conditions. It is recommended for use in the construction of infield and highway roads for the construction of oil and gas fields.

Claims (7)

1. Design for the formation at the construction site of a cross section for water passage, made in the form of a reinforced concrete pipe, consisting of a steel cylinder and a concrete matrix, including spiral reinforcement, characterized in that it is made in the form of a layer-wound spiral-wound matrix of dry concrete mixture on the supporting cylinder including a spiral reinforcing cage with culverts fixed to it, each spiral layer of which is placed between the upper and lower permeable panels of Concrete Canvas concrete matrix s filled dry concrete mixture. 2. The design for forming at the construction site a cross section for water passage according to claim 1, characterized in that the culverts are fixed to the reinforcement cage with tape. 3. The design for forming at the construction site a cross section for water passage according to claim 1, characterized in that the lower layer of the concrete sheet Concrete Canvas is filled with fiber-reinforced concrete mixture. 4. The design for forming at the construction site a cross section for water passage according to claim 1, characterized in that a central culvert channel is formed on its axis inside the support cylinder, formed by support rings fixed to the transverse edge of the spiral reinforcing cage. 5. The design for forming at the construction site a cross section for water passage according to claim 1, characterized in that the culverts are made in the form of channels formed by an inflatable mattress located inside the concrete matrix, which are cut off from the ends after the concrete mixture has hardened. 6. The design for forming at the construction site a cross section for water passage according to claim 1, characterized in that the culverts are made in the form of discrete segments located at intervals between each other. 7. Design for forming at the construction site a cross section for water passage according to claim 1, characterized in that the reinforcing cage is connected to an electric circuit.

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