The way of capital repair of culverts

 

The invention relates to the field of construction. The way of capital repair of culverts includes placing inside the tube along its length with a gap relative to the inner surface of the longitudinal reinforcing elements with a gap between the existing pipe and the reinforcing elements of the filling material. What's new is that before placing reinforcing elements perform longitudinal impervious screens and longitudinal support elements. Then put a layer of dry sand and cement mix and performs the pillow of lean concrete. As longitudinal reinforcing elements used corrugated metal pipe length, the greater the distance between the lower edges of the mound, while the gap between the inner surface of the repaired pipe and the outer surface of the corrugated metal pipe filled with concrete fill. The technical result generated by the present invention is to provide reliability, high load bearing capacity and durability of culverts after major repairs while ensuring manufacturability of work, reducing the time of repair, the exception deformation of the pipe after repair due to obesiy. 3 C.p. f-crystals, 3 ill.

The invention relates to the field of construction and can be used with the repair of culverts.

There is a method of capital repair of pipes laid under the earth near its surface, whereby the repair of pipes perform preliminary excavation and subsequent backfilling of the soil using a hydraulic excavator (see, for example, the invention “Method of repair of buried pipes (options)”, EN 2002114837, E 01 D 22/00, 06.06.2002).

The disadvantage of this method is the high complexity of dredging and backfilling required for the repair of pipes.

Closest to the invention in its essence and the achieved result is a method of capital repair of culverts, including placing inside the tube along its length with a gap relative to the inner surface of the longitudinal reinforcing elements with a gap between the existing pipe and the reinforcing elements of the filling material (see, for example, C. C. zawacki, N. And. Hooks and other Restoration of bridges and pipes on the Railways. - L.: Military Academy of logistics and transport, 1957, S. 219-220).

The disadvantage of this method overhaul Telenesti time, which affects the economy and the timing of repair, and, in addition, the new pipe has low bearing capacity and are prone to deformation when deformation of the Foundation soil.

The objective of the invention is to ensure reliability, high load bearing capacity and durability of culverts after its overhaul.

The problem is solved due to the fact that in the way of capital repair of culverts, including placing inside the tube along its length with a gap relative to the inner surface of the longitudinal reinforcing elements with a gap between the existing pipe and the reinforcing elements of the filling material according to the invention prior to placement of reinforcing elements on both sides of the embankment beyond the lower edges perform longitudinal impervious screens with their depth below the estimated depth of seasonal freezing of soil, each membrane screen perform in the cross section of the repaired pipe width, exceeding the maximum cross-sectional dimension of the repaired pipe on its outer contour with the filling of the sinuses sand-cement mixture, after which the inner side of each protivogistaminnah echem the repaired section of pipe, the width of the impervious screen in this section of the pipe, and a length along the pipe component (6,0-7,5) m, where m is the thickness of the impervious screen in longitudinal section of the repaired pipe, and then the input and output sides of the repaired pipe at the base of the embankment is placed a layer of dry sand and cement mix, which perform extended until at least the input and output ends of the repaired pipe and extending beyond the lower edges of the existing embankment in the area of the output end of the repaired pipe length along the tube, more than the length, which comes out this layer in the area of the input end, and then inside of the repaired pipe performs the pillow of lean concrete, and as longitudinal reinforcing elements used corrugated metal pipe length exceeding the distance between the lower edges of the mound, which is placed on a cushion of lean concrete within the length of the repair pipe and outside its length on the layer of dry sand and cement mix, and the gap between the inner surface of the repaired pipe and the outer surface of the corrugated metal pipe filled with concrete fill with the formation of the repaired pipe, concrete fill-FDG is the first ends of the corrugated metal pipe outside of the embankment slopes perform beveled parallel to the slope of the embankment.

Each supporting element can be performed in teams of reinforced concrete ledge.

Each concrete Lejeune each support element may be laid on the preparation of dry sand and cement mix.

Each membrane screen may be made of precast concrete elements.

The technical result generated by the present invention is to provide reliability, high load bearing capacity and durability of culverts after repair while ensuring manufacturability of work, reducing the time of repair, the exception deformation of the pipe after repair by ensuring collaboration reinforced base and prevent seasonal sediment soil Foundation.

The invention is illustrated by drawings, where Fig.1 shows the repaired pipe under a barrow, a longitudinal section; Fig.2 is a section along a-a in Fig.1; Fig.3 is a section along B-B in Fig.1.

The way overhaul of the pipe 1 in the bulk 2 includes a placing inside the tube along its length with a gap of 3 relative to the inner surface 4 of the longitudinal reinforcing elements 5 with the gap 3 between the existing pipe 1 and the elements of usileny the top 8 perform longitudinal membrane 9 screens with their depth below the estimated depth of seasonal freezing of soil (not shown). Each membrane screen 9 is performed in the cross-section of the repaired pipe 1 of a width exceeding the maximum cross-sectional dimension of the repaired pipe 1 through the external circuit with the filling of the sinuses sand-cement mixture 10, after which the inner side 11 of each impervious screen 9 at the level of the base of the mound 12 perform adjacent to the screen 9 of the longitudinal supporting element 13 of a width in the cross section of the repaired pipe 1, the width of the impervious screen 9 in this section of the pipe 1, and a length along the pipe 1, component (6,0-7,5) m, where m is the thickness of the impervious screen 9 in longitudinal section of the repaired pipe 1. Then, the input 14 and the output 15 of the sides of the repaired pipe 1 at the base of the embankment 12 is placed a layer of dry sand-cement mixture 10, which perform extended at least up to the input 16 and output 17 the ends of the repaired pipe 1 and extending beyond the lower edges 8 of the existing embankment 2 in the area of the output end 17 of the repaired pipe 1 to the length along the tube 1, more than the length, which comes out this layer in the area of the input end 16, and then inside the repaired pipe 1 performs the cushion 18 of lean concrete. As longitudinal ElementName 8 embankment 2, which is placed on the cushion 18 of lean concrete within the length of the repair of the pipe 1, and outside of its length on the layer of dry sand-cement mixture 10, with a gap 3 between the inner surface 4 of the repaired pipe 1 and the outer surface 19 of the corrugated metal tube 5 is filled with concrete fill 6 with the formation of the existing pipe 1, the concrete filling 6 and corrugated metal pipe 5 single working together to provide a new reinforced pipe 20, and the input 16 and output 17 the ends of corrugated metal pipe 5 outside slopes 21 embankment 2 perform beveled parallel to the slope 21 of the mound 2.

Each supporting element 13 performs precast reinforced concrete of the ledge 22.

Each concrete Lejeune 22 of each support element 13 is placed on the preparation of dry sand-cement mixture 10.

Each membrane screen 9 are made of precast concrete elements 23.

Claims

1. The way of capital repair of culverts, including placing inside the tube along its length with a gap relative to the inner surface of the longitudinal reinforcing elements with a gap between the existing pipe and the elements at the discharge beyond the lower edges perform longitudinal impervious screens with their depth below the estimated depth of seasonal freezing of soil, each membrane screen perform in the cross section of the existing pipe with a width exceeding the maximum cross-sectional dimension of the repaired pipe on its outer contour with the filling of the sinuses sand-cement mixture, after which the inner side of each membrane of the screen in the level of the base of the mound perform adjacent to the screen of the longitudinal supporting element width in the cross section of the repaired pipe, the width of the impervious screen in this section of the pipe, and a length along the pipe component (6,0-7,5) m, where m is the thickness of the impervious screen in longitudinal section of the repaired pipe, and then with the input and output sides of the repaired pipe at the base of the embankment is placed a layer of dry sand and cement mix, which perform extended until at least the input and output ends of the repaired pipe and extending beyond the lower edges of the existing embankment in the area of the output end of the repaired pipe length along the tube, more than the length, which comes out this layer in the area of the input end, and then inside the repaired tubes have a cushion of lean concrete, and as longitudinal reinforcing elements use of metal cushion of lean concrete within the length of the repair pipe and outside of its length on the layer of dry sand and cement mix, and the gap between the inner surface of the repaired pipe and the outer surface of the corrugated metal pipe filled with concrete fill with the formation of the repaired pipe, concrete fill, and corrugated metal pipe single working together to provide a new reinforced pipe, and the input and output ends of the corrugated metal pipe outside of the embankment slopes perform beveled parallel to the slope of the mound.

2. The method according to p. 1, characterized in that each supporting element performing teams from the concrete ledge.

3. The method according to p. 2, characterized in that each concrete Lejeune each support element is placed on the preparation of dry sand and cement mix.

4. The method according to p. 1, wherein each membrane screen is made of precast concrete elements.

 

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