RU2329353C1 - Open-ended transverse bank protection structure - Google Patents

Abstract

FIELD: building.

SUBSTANCE: invention relates to hydrotechnic and ameliorative construction of bank protective structures in erodible river channels, water stop slopes and similar structures. The bank protection structure includes factory-made elements. Transverse sections of the bank protection structure present a system of parallel unchangeable supports consisting of hollow triangular blocks with hoops on their tops. The blocks are pivotally connected in triangular supports by means of loops fixed around transverse fitment and forming units. The structure is installed at the angle or transverse to the direction of flow current, one of its surfaces being on the river bottom. The hollow triangular blocks are made of reinforced concrete.

EFFECT: improved effectiveness and reliability of protection of bank river channels from erosion and increased durability of bank protection structure.

2 cl, 5 dwg

Description

The invention relates to hydraulic engineering and land reclamation construction and can be used as shore protection structures in eroded riverbeds, canals, slopes of dams, designed for various purposes, and other structures.

A device for attaching a slope of an earth structure [1] is known, comprising prefabricated-lattice structures consisting of individual blocks in the form of tetrahedrons. The disadvantages of this technical solution are:

- the complexity of the form of elements manufactured in factories;

- the inconvenience of connecting nodes using complex technical solutions for connecting reinforced concrete elements;

- fastening in economic terms is not always an effective technical solution due to the use of industrial reinforced concrete structures.

The closest technical solution is a through transverse shore protection structure, consisting of spacer elements fixed to the transverse reinforcement. [2]. The disadvantages of this technical solution are:

- the complexity of the assembly;

- fastening economically is not always an effective technical solution;

- the possibility of accounting for the amount of sediment in the river is not provided.

The purpose of the invention is to increase the efficiency and reliability of protecting the banks of riverbeds from erosion and durability of the life of the shore protection structure.

This goal is achieved by the fact that on the eroded shore, a through transverse (Fig. 1) shore protection structure is installed. In this case, the installation angle depends on the width of the channel, the possible dump of the stream to the shore, and other morphological elements of the stream and channel. The most favorable option is to install them in the direction of flow, which creates the most favorable conditions when flowing around. The length of the transverse transverse shore protection structures and the distances between them are determined by the developed methodological recommendations. The transverse transverse shore protection structure (Fig. 2) is assembled mechanically by connecting hollow triangular blocks to trusses and securing them to the transverse reinforcement with clamps. So, sequentially connecting the trusses to the transverse reinforcement, a through-shore protection structure of any length and height is assembled. Moreover, the cross section of this structure, which is a farm, is triangular.

The hollow triangular block is made of concrete, in which the reinforcement is located. As reinforcement, steel A 111 with a diameter of 12–16 mm can be used. As a material, high-strength concrete M 250 ÷ 300 can be used.

The flow of water flowing through a transverse shore protection structure reduces its speed, resulting in a decrease in the transporting ability of the flow and the precipitation of suspended sediment.

The frequency of installation of farms depends on the turbidity of the flow of water. The greater the turbidity of the flow, the greater the distance between the farms and vice versa.

Flexibility is a huge advantage of this structure, since it is located in the water and it is impossible to avoid deformations of the bottom and base, and this will entail deformation of the structure, which is not dangerous for this type of coastal protection.

Figure 1 shows a longitudinal section through a transverse shore protection structure; figure 2 - farm through cross-section shore protection structures; figure 3 - node a in figure 2; figure 4 is a through transverse shore protection structure, axonometry; figure 5 - view In figure 3

A protective transverse shore protection structure 2, consisting of trusses 3, is installed to the protective dam 1. Truss 3 is assembled from hollow triangular blocks 4 having loops 5 on tops. Clamps 6 are put on loops 5, screwed by bolts 7 to transverse reinforcement 8.

A transverse transverse shore protection structure is constructed and operates as follows. On the eroded shore 1, a through transverse (Fig. 1) shore protection structure 2 is installed. The installation angle depends on the width of the channel, the possible dump of the stream to the shore, and other morphological elements of the stream and channel. The length of the transverse transverse shore protection structures 2 and the distances between them are determined by the developed methodological recommendations. The transverse transverse shore protection structure 2 (Fig. 2) is assembled mechanically by connecting the hollow triangular blocks 4 to the trusses 3 with clamps 6 to the transverse reinforcement 8, which form the nodes. The clamps 6 are pressed by bolts 7 (figure 3). So sequentially connecting the truss 3 to the transverse reinforcement 8, a through transverse shore protection structure 2 is assembled. Its height can be increased to any size. In this case, the cross section of this structure, which is a farm, has a triangular shape (figure 4). Hollow triangular blocks 4 can be made of reinforced concrete by an industrial method. On the tops of the hollow triangular blocks, loops are provided, 5 to which clamps 6 are attached (Fig. 5).

The flow of water flowing through the through transverse shore protection structure 2, reduces its speed, resulting in a decrease in the transporting ability of the stream and the precipitation of suspended sediment.

The frequency of installation of trusses 3 depends on the turbidity of the water flow. The greater the turbidity of the flow, the greater the distance between the farms 3 and vice versa.

Flexibility is a huge advantage of this structure, since it is located in the water and it is impossible to avoid deformations of the bottom and base, and this will entail deformation of the structure, which is not dangerous for this type of coastal protection.

The proposed technical solution has several advantages over other previously known. In the proposed technical solution, industrially manufactured structures of higher quality can be used.

The proposed technical solution is cheaper than the known ones because of the greater labor productivity during assembly. Moreover, the durability of these structures is greater than previously known similar technical solutions.

Information sources

1. Kherkheulidze I.I. Prefabricated lattice reinforced concrete structures of protective and straightening structures on mountain and foothill rivers // Hydrotechnics and Land Reclamation 1958, No. 9. - S. 43-48. (Analog).

2. Patent of the Russian Federation No. 2270292С1, IPC Е02В 3/12, Through transverse shore protection structure / Lamerdonov Z.G., publ. 02/20/2006. - 5 sec. (Prototype).

Claims (2)

1. A transverse transverse shore protection structure containing prefabricated elements, characterized in that in cross sections the transverse transverse shore protection structure is a system of parallel unchanged trusses consisting of hollow triangular blocks with loops on tops pivotally connected to triangular trusses with clamps secured around the transverse reinforcement with the formation of nodes, while the structure is installed at an angle or across to the direction of flow of one plane to the bottom of the river. 2. The construction according to claim 1, characterized in that the hollow triangular blocks are made of reinforced concrete.

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