RU2278920C1 - Method for flexible slope protective structure erection - Google Patents

Abstract

FIELD: hydraulic building, particularly shore protective structures.

SUBSTANCE: method involves laying panels reinforced with wire cuts arranged along two diagonal lines so that wire ends project outwards from panels; connecting four projected wire ends with each other at a time. Panels are laid on slope so that projected wire ends are bent upwards and the projected wire ends are inserted in four orifices of twisting device. Projected wire ends are firmly connected one to another by rotation of twisting device handle about its axis. Flexible structure is fastened to slope by anchors arranged in structure joints.

EFFECT: increased efficiency of slope protection against erosion and extended service life of slope protective structure.

5 dwg

Description

The invention relates to hydraulic engineering and can be used as shore protection structures in eroded riverbeds, canals and other structures.

A known method of erection of a flexible slope fastening [1], in which on a prepared slope base laid in the form of a reverse gravel or crushed stone filter, the braided mesh rolls with the long side across the direction of flow are laid out. The nets are interconnected by a connecting wire and form a one-piece carpet with an apron or a recessed base and fixed to the slope with anchors clogged normally to the surface of the slope. Concrete or a high-strength mortar is placed sequentially on top of the woven mesh, evenly covering it, on which wear-resistant materials are tightly laid.

The disadvantages of this technical solution:

- the design and method of its construction are quite complex;

- low labor productivity;

- in the winter period of time when laying monolithic concrete, additional costs are required.

The closest technical solution is a concrete coating of solid tiles (checkers) [2]. Concrete mattresses are connected with iron joints with a diameter of 20-25 mm, depending on the design of the castle.

The disadvantages of this technical solution:

- the rigidity of the mounting structure is insufficient, since it is not possible to make a rigid connection;

- during operation, the ring joints are abrased by the dynamic action of the water flow.

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

This goal is achieved by the fact that on the slope of dam 1 (Fig. 1), preparation is arranged in the form of gravel dumping with a thickness of 20-30 cm, which is carefully planned after. An anti-suffusion device is laid on the preparation, as of which geotextiles are usually used today. An anti-suffusion device is necessary in order to prevent mechanical suffusion from under a flexible slant mount. On top of the anti-suffusion device, a flexible slant mount is mounted (Figs. 2, 4) with an apron device. To do this, on the slope, plates with bent wire outlets are tightly stacked. Next, four bent upward wire outlet are inserted into the holes of the twisting device (figure 5) and by rotation of the handle around the axis are firmly connected to each other. This twist tightly presses them together. The plates are reinforced with wire (Fig. 3) along the diagonals, which creates a solid one-piece reinforcing frame on the slope after they are connected. Such a reinforcement system eliminates the destruction of the plates during the formation of cracks in them. A flexible slope mount is secured to the slope using anchors.

Figure 1 shows a cross section of a dam with a flexible sloping mount, General view; figure 2 is a top view of a flexible slant mount, General view; figure 3 is a view of a plate with wire outlets, a perspective view; figure 4 is an enlarged fragment of a tile mount, top view; figure 5 is a device for twisting wire outlets, General view.

On the slope of dam 1, preparation 2 is arranged, on which the anti-suffusion device 3 is laid, and on top is a flexible slope mount 4 with an apron 5. The flexible slope mount 4 consists of plates 6, reinforced with wire 7 and having wire outlets 8. Wire outlets 8 are twisted in knots 9 with a special twisting device 10, which has holes 11 for this. A flexible slant mount 4 is fixed to the slope of dam 1 in nodes 9 with anchors 12.

A method of erecting a flexible slant mount is as follows. On the slope of dam 1 (Fig. 1), preparation 2 is arranged in the form of a gravel bed 20-30 cm thick. Anti-suffusion device 3 is laid on preparation 2, which is usually used as a geotextile. On top of the anti-suffusion device 3, a flexible slant mount 4 is mounted (FIGS. 2, 4) with an apron 5. For this, slab 6 with upward bent wire outlets 8 is laid on slope 1. Next, four bent up wire outlet 8 are inserted into the holes 11 of the twisting device 10 (Fig.5) and by rotation of the handle around the axis are firmly connected to each other. The plates 6 are reinforced with wire 7 (Fig. 3) along the diagonals, which creates a solid one-piece reinforcing frame on the slope after they are connected. Such a reinforcement system eliminates the destruction of plates 6 during the formation of cracks in them. A flexible slope mount is secured to the slope using anchors 12.

The proposed method of flexible sloping fastening is cheaper and more reliable in the work of well-known similar technical solutions. At the same time, the durability of these structures is 1.5 - 2 times more, since reliable fastening in the nodes of the plates is provided.

Information sources

1. Patent of the Russian Federation No. 2238368, MKI E 02 D 17/20, E 02 B 3/12. The method of construction of a flexible sloping fastening / Lamerdonov Z.G .; Claim 03/31/2003; publ. 10/20/2004, Bull. No. 29 (analogue).

2. Altunin S.T. Regulation of channels, M .: Selkhozgiz, 1956, p.112-113 (prototype).

Claims (1)

A method of erecting a flexible slant fastening, including laying plates reinforced with wire along two diagonals with a device of wire outlets, which, when installed, are connected together in four, characterized in that the plates are laid on a slope with the wire outlets bent upwards, after which four wire outlets bent up inserted into the four holes of the twisting device and by rotating the handle of the latter around its axis firmly connect them together, while the flexible slant mount in the nodes is fixed to slope anchors.

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