RU200226U1 - Module of prefabricated hydraulic self-fixing ice-resistant structure - Google Patents

Abstract

The utility model relates to the area of coastal protection structures that help prevent erosion of the coastline, raise its level and protect it from the destructive effects of ice during ice drift. More specifically, the described utility model relates to a hydraulic self-anchored ice-resistant structure. A module of a prefabricated hydraulic self-fixing ice-resistant structure, which is a block with fastening connections located on opposite sides in the form of anchors for connecting blocks to each other, while the block has a rounded upper surface on which, relative to the central axis, on the left and right, there are holes, connected to the inner spherical cavities, while the connection of the blocks to each other occurs in a checkerboard pattern, and the fastening connections in the form of anchors located on the lateral opposite sides of the block, on the one hand, are an anchor ring, and on the other, an anchor hook. The technical result of the claimed utility model is the creation of a module of a prefabricated hydraulic self-fixing ice-resistant structure to protect coastlines from the destructive effects of ice during ice drift.

Description

The technical field to which the utility model belongs

The utility model relates to the area of coastal protection structures that help prevent erosion of the coastline, raise its level and protect it from the destructive effects of ice during ice drift. More specifically, the described utility model relates to a hydraulic self-anchored ice-resistant structure.

State of the art

Various wave-absorbing prefabricated hydraulic structures are known to be installed in a relatively shallow coastal zone to prevent possible destruction of the coastline.

Known is a protective hydraulic structure made of shaped concrete massifs, which contains a stone bed, a body of randomly laid shaped concrete massifs, a massive flexible diaphragm and a triangular prism (SU 1469007 A1, publ. 30.03.89).

The well-known overflow protective hydraulic structure has low operational characteristics, due to its massiveness it is subjected to a strong wave load, and the wave is washed away.

Known penetrating hydraulic structure, which contains a sketch of figured blocks or stone, poured into a frame holding it with an open upper and lower end. The retaining frame is completely submerged in water, its upper end is located below the calm water level, on top of the frame is a prism from the same outline with loose slopes. The upper mark of the prism is located above the water, the installation frame is located on supports, its lower end is located above the unevenness of the bottom (RU 2200789 C2, publ. 20.03.2003)

The disadvantage of this hydrotechnical structure is instability under storm impact of waves, as well as destruction of the metal frame with the development of corrosion at the level of wave action.

Known prefabricated hydraulic structure, which is a flexible protective mat, which contains concrete blocks connected in series. The rows are connected by flexible cables. In the upper part, the blocks are made in the form of rectangular parallelepipeds for the value of the minimum diameter of the cable bend ring, and the height of the truncated pyramids is less and equal to the height of rectangular parallelepipeds (RU 2325474 C1, publ. 05/27/2008)

However, the known prefabricated hydraulic structure has low operational characteristics due to the low stability of adhesion to the ground. Mechanical installation is required.

Known prefabricated cover plate, the contour of which is described by a rectangle, and on two opposite sides there are recesses in the form of isosceles trapezoid. The lower part of the slab is made in the form of a rectangle, the contour of which is reduced relative to the central axis, parallel to the edges with recesses, by the depth of the trapezoidal recess of the upper part. The transition between the corresponding offset side edges of the upper and lower parts is made using inclined planes (RU 2208080 C2, publ. 10.07.2003).

Known element of the prefabricated coating, which is a single block in the form of a polyhedron, consisting of a lower part based on a horizontally oriented parallelepiped, one of the lateral sides of which has a concave surface formed by faces located at an obtuse angle to each other, and an upper part containing an upper rectangular a facet, beveled end faces in the form of faces based on a rectangular trapezoid, and lateral faces, one of which is concave and formed by triangular faces (RU 177772 U1, publ. 03/12/2018)

The disadvantage of the known elements of prefabricated hydraulic structures is low operational characteristics due to low stability and adhesion to the ground, as well as the need to use flooring made of reinforcement and crushed stone.

The closest analogue to the claimed utility model is a module of a prefabricated hydraulic structure, which is a block made in the form of a rectangular parallelepiped, on the upper and lower sides of which, relative to the central axis, on the left and right, there are recesses in the form of rectangles, and a hole is made in the center of each recess , and on the lateral opposite sides of the block there are fastening connections. Fastening connections are made in the form of anchors. The block is made of concrete or reinforced concrete (RU 195367 U1, publ. 23.01.2020).

However, the known design of a prefabricated hydraulic structure module does not have ice-resistant properties to protect coastlines from the effects of ice during an ice drift.

Disclosure of a utility model

The task to be solved by the claimed utility model is to expand the arsenal of technical means of coastal protection structures.

The technical result of the claimed utility model is the creation of a module of a prefabricated hydraulic self-fixing ice-resistant structure to prevent the coastline from erosion, raise its level and protect it from the destructive effects of ice during ice drift.

The specified technical result is achieved in a module of a prefabricated hydraulic self-fixing ice-resistant structure, which is a block with fastening connections located on opposite lateral sides in the form of anchors for connecting blocks to each other, while the block has a rounded upper surface on which, relative to the central axis, on the left and on the right, there are holes connected to the internal spherical cavities, while the blocks are connected to each other in a staggered manner, and the fastening connections in the form of anchors located on the lateral opposite sides of the block, on the one hand, are an anchor ring, and on the other - an anchor hook.

The block is made of reinforced concrete.

Installation of the structure is carried out at positive ambient temperatures on open ground (without ice and snow cover).

The "self-fixing" effect is achieved due to the settling of silt and / or sand in the internal cavities and in the labyrinth gaps between the structural elements, i.e. the structure catches particles of silt and / or sand coming from water flows, distributes them in its cavities and labyrinths between the structural elements. This process significantly increases traction and prevents backwash. As a result, as a result of the influence of the forces of nature, the structure is more and more firmly fixed each time. The result is an almost monolithic structure of large mass, which is firmly connected to the base / ground. After erosion of the structures, the level of the coastline rises to the height of the mounted blocks.

Due to the configuration of structural elements and installation in a staggered manner, additional labyrinths are formed for soil settling.

During the period of ice drift, the structure is "pressed" to the ground due to its spherical shape. The rounded shape of the blocks more effectively resists the advancing ice during the ice drift, namely, it facilitates the ice sliding without destroying the block. The spherical inner shape of the block prevents the block from collapsing when the sand and / or silt inside the block freezes. When ice acts on the inner walls of the block, the last block rises slightly without destroying the walls. This is achieved by thickening the upper part of the walls of the structure. Thus, the internal spherical cavities and reinforced walls of the structure make it possible to effectively resist the process of destruction of structures in the winter.

Brief Description of Drawings

The essence of the utility model is illustrated by figures, where:

figure 1 is an isometric view of the block of a prefabricated hydraulic self-fixing ice-resistant structure;

figure 2 is an isometric view of a block of a prefabricated hydraulic self-fixing ice-resistant structure with the shown inner spherical cavities;

figure 3 is a view of a prefabricated hydraulic self-fixing ice-resistant structure.

Implementation of the utility model

A module of a prefabricated hydraulic self-fixing ice-resistant structure (Figs. 1-2), which is a block with fastening joints located on opposite lateral sides in the form of anchors to connect the blocks to each other, while the block has a rounded upper surface on which, relative to the central axis, on the left and right, there are holes connected to the inner spherical cavities, while the blocks are connected to each other in a staggered manner, and the fastening connections in the form of anchors located on the lateral opposite sides of the block, on the one hand, are an anchor ring, and on the other - anchor hook.

The block is made of reinforced concrete.

The structure consists of a body with a rounded upper part - 1, holes for the flow of silt and sand into the internal spherical cavities - 2, spherical internal cavities - 3, fastening joints in the form of anchors - 4 and labyrinth gaps between the structures - 5.

The modules are assembled by interlocking with fasteners in the form of anchors (4) into a single monolithic whole structure with labyrinth clearances (5) (Fig. 3). Silt and sand are deposited in the labyrinth gaps, which significantly increases the adhesion of structures to the ground and contributes to an increase in the level of the coastline. Sludge and sand enter with water through holes (2) into inner spherical cavities (3) and settle in them. This process leads to anchoring the structure to the ground. As a result, the structures are transformed into a single monolithic whole, distributing static and dynamic loads among themselves. The design prevents the erosion of the coastline, restrains the ice load during ice drift. The upper part of the structure has a rounded shape (1), which increases the resistance to ice pressure. Internal cavities are spherical, which prevents the destruction of structures in winter.

Thus, the use of the proposed module of a prefabricated hydrotechnical self-fixing ice-resistant structure makes it possible to expand the arsenal of technical means of bank protection aimed at preserving coastlines from erosion by waves, currents, floods, ice, creating favorable conditions for plant rooting by protecting the root system, significantly improving the reliability of coastline protection from destruction and rising water level, effectively contributes to the rise of the level of coastlines, embankments and dams, and also effectively protects against the destructive effects of ice drift.

Claims (2)

1. A module of a prefabricated hydraulic self-fixing ice-resistant structure, which is a block with fastening connections located on opposite lateral sides in the form of anchors for connecting blocks to each other, characterized in that the block has a rounded upper surface, on which, relative to the central axis, on the left and right , there are holes connected to the internal spherical cavities, while the blocks are connected to each other in a staggered manner, and the fastening connections in the form of anchors located on the lateral opposite sides of the block, on the one hand, are an anchor ring, and on the other, an anchor hook ... 2. The module according to claim 1, characterized in that the block is made of reinforced concrete.

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