SU1263754A1 - Enclosure for erecting or repairing the underwater part of bridge piers - Google Patents

Abstract

1. PROTECTION FOR CONSTRUCTION OR REPAIRS OF THE UNDERWATER PART OF THE BRIDGE SUPPORTS, including the knife part and the floating bridge installed on it, of metal wall pontoons with openings for the duct that are attached together with each other, in order to reduce the volume of the installation work and increase the volume of the pipework, and increase the scope of the pipework. reducing the material consumption of the fencing design; it is equipped with siphons. The completed composite parts consist of two halves connected between each other, fixed on facing torches of wall pontoons facing each other, having to hang over the halves of the siphons for communication with the atmosphere, and the knife part is made of composite knife pontoons that have a facing towards the erected or repaired support the face is made oblique and covered with a film, fastened on the knife edge with a protective casing. 2. The coating according to claim 1, characterized in that, in order to reduce metal consumption and improve preventive maintenance, the wall pontoons are made open in the upper part. 3. The fence according to claim 1, characterized in that, in order to provide compact storage, transportation and improvement of preventive maintenance, each wall pontoon is made assembled from two skew-symmetric halves.

Description

The invention relates to motostroeniiro, in particular to the construction or repair of dry underwater part of the glands of road and road bridges.

The aim of the invention is to reduce the complexity of installation work ,. increased turnover and reduced material consumption of the fence design.

Figure 1 schematically shows a lintel with wall and knife pontoons, a plan (one quarter); figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; figure 4 - air and water on the network in the hoHTOHax jumper; on fig.5rezbut BB in figure 4; figure 6 - section GG in figure 4; 7 - angular and intermediate knife pontoons, axonometric; Fig. 8 shows a pontoon, opened from above, axonometrics; figure 9 pontoon from skew-symmetric halves, axonometric; figure 10 - warehousing and transport position, the pontoons; figure 11 is the same option; on Fig - the angular part of the jumper, axonometric.

The fence for erecting or repairing the underwater part of the bridge supports 1 includes a floating bridge of wall 2, 3 and knife 4, 5 pontoons, which are pushed together in horizontal rows. The inclined face 6 of the knife pontoons 4, 5 limits the cementing base 7 of the underwater fence from the sides. The fence is provided with siphons 8 (Figs.4-6), made up of two interconnected halves 9, fixed on the mating ends of 10 wall pontoons 2, 3, and openings 11 for communication with the atmosphere, located above the halves 9 siphons 8. I

In each horizontal row of pontoons 2, 3, forming a rectangular enclosure enclosed in the form of a rectangle, in the middle of it there are pipes 12 located at the corners of the enclosure. Vertical, open at the top and bottom of the pontoon and equipped with siphons 13 (two or one, but doubled abilities) facing the inside of the pontoons 2 ipi 3, which are provided with holes 14 for communication with the atmosphere over the siphons 13.

In knife pontoons 4, 5, the upper faces are commensurate with the adjacent gra54

m of wall pontoons 2, 3, and the faces of support 1 that are facing 6 of the knife pontoons (Figures 1-4) are set obliquely away from the support 1 from the bottom of this edge and covered with a removable synthetic film 15 (Fig.5). The edge of the knife pontoons 4, 5 is protected by a protective cover 16 from damage to the film when the transfer knife is lowered to the ground. Knife pontoon 4 or 5 with pipe 12, located under wall pontoon 2 or 3, is made with conduit 17 for discharging water from wall wall pontoons into the river, if necessary, after unscrewing fitting 18 at the outer end of conduit 17. the upper face of the opening of the halves of the siphons 8, the holes 11 for communication with the atmosphere and the ends of the pipe 12 are framed with a rubber seal 19 glued to the corresponding pontoons (Fig.7).

Wall pontoons can be made open at the top (Fig. 8) or collapsible (Fig. 9) of the two combined bolts through the holes 20 of skew-symmetric halves of the blocks 21, 22 with preliminary merging of the halves into the pontoon.

All the BiiicoTe in series and across BiiicoTe are joined through the seals 19 with the help of bolts through the holes 23, and the T9 rubber seals are glued to the pontoons at the points of conjugation

Dividing the knife into pontoons 4, 5, commensurate with matching horizontal walls wall pontoons 2, 3, allows attaching knife pontoons 4, 5 one by one to the bottoms of wall pontoons 2, 3 and mounting (dismounting) jumpers with a knife on the surface (and around the repaired support 1). The execution of the edge 6 of the knife pontoons 4, 5 with a downward slope to the support 1 and the presence of a synthetic film 15 fixed on this face with the help of a viscous composition (such as petroleum jelly, hydroplast, etc.) of the synthetic film 15 provides for the knife to detach from the cementing base 7 jumpers out of the water.

Ballasting with water to immerse the lintel as it is extended by horizontal rows of pontoons 2.3 when mounted above the water horizon is achieved by means of water.

COCOB (not shown) to the upper links of the pipes 12, from where water flows over siphons 13 and 8 sequentially from the pontoon to the pontoon as the water level rises in them to the upper knee of the siphon. With the rise of water in the pontoons, air is forced out of them through openings 11 in the pontoons and pipe 12 to the atmosphere,

The lightening is carried out by the same pumps, pumping water from pipes 12, into which water as it is pumped out through siphons 13 and 8 from pontoons released from water, starting from the top of their row, with simultaneous intake of air from the atmosphere through openings 11 and 14 The lightening is also provided by means of a compensator by injecting air into the jumper in the same way (through the holes 11 and 14), for which the pipes 12 are closed at the top with sealed pins (not shown), and at the bottom with the conduits 17 in the knife pontoons 5 they are turned off of the fitting 18.

The device siphons 8 in pontoons

2.3 and siphons 13 eliminates the need for mounting and dismounting of hinged networks (air and water) with fittings for each pontoon, while ensuring the buoyancy of the pontoons 2,

3, despite the opening in them of the openings of the halves of 9 siphons 8 and the openings 11 for the passage of air.

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This design feature allows the jumper to be mounted afloat as a single and group transport of the wall pontoons 2, 3 in their normal position (bottom down), including with the knife pontoons 4, 5 attached to them as boats.

In the pontoons, which are open at the top (Fig. 8), the missing upper edge in the bridge is the bottom of the pontoons of the above-mentioned row. The uppermost row of pontoons of the jumper is set bottom up, in line with the previous row of pontoons of double height, without disturbing the working capacity for changing water ballasting and lightening of the jumper.

.Double-block pontoons (Fig.9) during storage and transportation are smaller than single blocks several times, depending on the size in terms of the stack of blocks 21, 22, laid flat on each other (Fig.10).

The top-opened pontoons (Fig. 8), when placed in one pontoon (Fig. 10), horizontally disposed, two vertically mounted on it and covered with a fourth pontoon, laid bottom up, more compactly volume-enclosed and more economical in terms of steel consumption.

In the open-top and double-block pontoons, better conditions are provided for preventive maintenance of the pontoons.

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Claims (3)

1. FENCING FOR ESTABLISHING OR REPAIRING THE UNDERWATER PART OF BRIDGE SUPPORTS, including the knife part and the floating bridge mounted on it made of metal wall pontoons fastened together with openings for the air duct, characterized in that, in order to reduce the complexity of installation work and increase turnover and reduce material consumption the design of the fence, it is equipped with siphons made of composite, of two interconnected halves, mounted on the facing ends of the wall pontoons, The relative constituents "Verstov over halves siphons for communication with the atmosphere, and a knife part made of composite knife pontoons, whose facing the erected or repaired is inclined support face and covered with a film, on a knife edge-protected safety enclosure. 2. The fence according to claim 1, wherein the, in order to reduce metal consumption and improve preventive maintenance, wall pontoons are made open in the upper part. 3. The fence according to claim 1, characterized in that, in order to ensure compact storage, transportation and improve preventive maintenance, each wall pontoon is made collapsible from two skew-symmetrical halves. tpuli S and ,,,. 1263754 A1