SU1209743A1 - Expansion joint - Google Patents

Abstract

1. Deformation seam, inclusions placed in the cavity of the seam between the channel facing plates of the sealing element and the protection made above it, characterized in that, in order to reduce labor costs and simplify the construction, the sealing element is designed as an elastic container with a placeholder in it ,; ia stitching seam shape. 2. The seam of p. 1, of tl and h ay and i - with the fact that the elastic container is placed in the lower part of the cavity of the seam, while the lower edges of the facing plates are supported on the nest, 3, Seam nn. 1 and 2, that is, that plastic material in the form of a hydrophobic sand, silt or glyce, which is brought to the plastic state of hydrophobic sand, silt, is used as an elastic container capacity. 4. The seam according to claim 1, which differs from the fact that the elastic capacity SS is attached to the facing plates along the perimeter of the contact with them. (L /: Y / 7 // 7/7: // FCI & .1 /:

Description

The invention relates to hydraulic engineering construction and can be applied primarily in the construction of protective clothing of channels and ponds of concrete and reinforced concrete slabs.

The purpose of the invention is to reduce labor costs and simplify the design.

FIG. 1 shows a seam, a longitudinal section; in fig. 2 - the same, if there is a connection between the sealing element and the end edges of the facing plates; Fig. 3 is the same if there is a connection between a sealing container and the end edges of the facing plates and is supported on the elastic capacity of the lower part of the plates.

The design of the butt joint (Fig. 1) includes the plates 1 laid at the base of the construction, in the butt cavity between which there is an elastic container 2 filled with plastic substance 3, and a protective layer 4 is formed above the elastic container 2. The elastic container 2 is on both sides in its upper Part 5 and on the entire contact is glued to the | Surface of the ends of the plates 6 (figure 2). It is possible to design a joint with an elastic tank 2 placed in the lower part of the joint S on which the lower part of the edges of the 7 plates is supported.

Example. The bottom and slopes of a channel with a depth of 2.5 m, laying of slopes with a width at the bottom of 4.0 m and at the base of weakly deformable middle loams are covered with plates measuring 6.2 x 2.0 x 0.06 m with beveled edges under such a 60 . The slabs are laid in the channel bed so that the cavity forming between the snow slabs faces with its smaller side to the base, the size of which along the plates perimeter is 30 mm. The elastic cavity is made in the form of a rubber sleeve M1Ch, which is filled with hydrophobic sand. This container fills 1/2 of the butt cavity between the cladding plates, after which the upper part of the cavity is filled with fine-grained concrete of grade 400, which protects the laid container from mechanical damage and ultraviolet rays.

Butt connection works as follows.

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When filled with a plastic substance, an elastic container, in view of its elasticity and under the weight of the filler and the external load, when placed in the joint cavity, takes the form of a joint cavity and a tight fit is formed between the cavity and the front part of the plates. already in itself is waterproof. When the canal is filled with water, the hydrostatic pressure of the water in the canal acts on the butt joint, which, together with the weight of the protective layer made of fine-grained concrete, even more presses the elastic capacitance to the walls (surfaces) of the end part of the slabs compounds. Due to the elasticity of filling the butt cavity, this design of the butt joint np1 does not adversely affect its performance by narrowing and narrowing the butt space within 2-4 mm from changing air temperatures. With deformation of the facing plates in certain (up to 10-20 mm) limits, this design of the butt joint ensures its operability, as it is. elastic capacity filled with plastic substance takes the form of the butt cavity, which is formed by the result of deformations

If there is sludge in the base of the channel (the deformable loamy soil is sealed by a butt joint by means of elastic elasticity, it is carried out as follows.

An elastic tank filled with hydrophobic sand in a zone of passage 1 and the expansion joint is laid on the subgrade in the form of a resistive seam HOBOi sleeve 1) 300 mm in width and 30 mm thick filling layer, after which the plates, each of which lies on its edge, are laid on a container located in the zone of an expansion joint, with the latter reaching 120 mm below the lower part of the plate edges, which is possible with the formation of a butt cavity of the tra: Especial shape, located - bol1) Sve1-: side to the base and its size 60 mm.

According to the weight of the plates, the surplus of the layer of the 1-unit filling of the elastic-elastic capacity is drawn from that part of it, which is located under the hem.

31209743

Kami slabs, and the joint cavity, due to the ability of the joint. What is it in the tank all the time? As in the first case, above the elastic with excess pressure, as a security, a protective layer is created out of the place where the fine-grained concrete is being built up with an increased rostatic pressure of the work- mark water.

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Claims (4)

1. A deformation seam, including a sealing element located in the cavity of the seam between the plates of the channel lining of the channels and a protection made over it, characterized in that, in order to reduce labor costs and simplify the structures, the sealing element is made in the form of an elastic FIG. 1 container with a filler placed in it / taking the shape of a seam. 2 ”The seam, item 1, with the fact that the elastic container is located in the lower part of the cavity of the seam, while the lower edges of the cladding plates are supported on it. 3. The seam according to paragraphs. 1 and 2, characterized in that a plastic substance is used as a filler of an elastic container in the form of hydrophobic sand, silt or clay brought to a plastic state. 4. Seam pop. 1, characterized in that the elastic container © is attached to the cladding plates along the perimeter of the contact with them.