SU1654420A1 - Pipe under embankment - Google Patents

Abstract

Isopretey refers to the i.jx ipv6 transcend vpop under i: i and h-tuf to remove the material of the container. The pipe under the embankment contains the supporting blocks forming the seams along the cross section of the pipe with the pliable elements placed in them. Two reinforcing meshes are placed in each seam, and the pliable elements are arranged between them, each malleable element made of mutually perpendicular thin-walled pipes, and the seams are formed by projections and depressions made on adjacent blocks 1 of ti f-crystals 2 or

Description

Iso.Replication relates to the construction of pre-grating pipes under high bulk earth structures with dams, dams, canals, roads, etc.

The purpose of the invention is to reduce material consumption.

Fig 1 shows a cross section through a pipe; in fig. 2 - node I in FIG. 1

The pipe includes a concrete bearing (reinforced concrete) structure made of individual blocks 1, which are separated from each other by seams 2 located around the perimeter of the pipe symmetric with its vertical axis. The step of joints 2 is determined by calculation or based on laboratory tests, for example of equivalent materials. Approximately, this step is taken to be from one to two wall thicknesses of elements 1 of the pipe construction. The seams 2 are formed by protrusions and depressions that form penalties 3 and are filled with frame-like mesh. m compliant element 4, in which the frame is made of thin-walled tubes 5 of low-strength material, such as aluminum, polyethylene, and the mesh b is located on both sides of the tubular frame.

The seams 2 intersect the rods 7 of high-strength material, such as reinforcing steel, located in the middle part of the sections. One end 8 of the rods 7 is monolithic in the concrete bearing structure 1, i the other end 9 is placed in sleeves 10 of elastic material, for example rubber, concreted in adjacent concrete blocks of 1 pipe supporting structure.

The seams can be monolithic hardening solution 11.

The pipe is placed in embankment 12 on the base 13.

Works pipe as follows. When dumping embankment 12 above the top of the pipe, the latter begins to deform under the action of the vertical as well as horizontal pressure of the soil. Due to the presence in the joints 2 elements 4 in the form of a skeleton of thin-walled pipes 5 and a double grid - deck 6, forming cavities, which provide for the relative freedom of movement of the blocks 1 of the supporting structure, which last move away from overload under the pressure of the soil. In this case, the structure automatically acquires a rational form, which perceives only compressive and does not perceive

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tensile forces. The presence of the rods 7, crossing the seams 2, provides additionally with penalties 3 co-operation of blocks 1 as a single supporting structure. The presence of elastic couplings on rods x 7 contributes to the smooth deformation of the pipe structure.

Upon further filling of the dam, the contact compressive stresses in the joints 2 reach the tensile strength of the thin-walled pipes 5, which begin to deform (flatten), ensuring further freedom of deformation of the pipe structure, which thereby escapes overload. At the same time, the concrete of the construction blocks 1 works only for compression, and at certain points of the uneven contact surfaces of the blocks 1 about the seams 2 local stresses may exceed the calculated resistance of concrete to local contact. However, since the pipe is loaded with the soil of the embankment 12 slowly, plastic deformations and stress relaxation occur in the concrete. The design is adaptable to change loads.

After completion of the construction of embankment 12 and stabilization in it, the precipitates of the seams 2 are frozen by hardening, for example, cement mortar.

After that, the pipe is working on operational loads in the hard mode.

Claims (2)

1. A pipe under the embankment, containing support blocks, limiting the seams along the cross-section of the pipe with compliant elements placed in them, characterized in that, in order to reduce material consumption, it is provided with two reinforcing meshes placed in each seam, the elastic element is located between the last and formed from mutually perpendicular thin-walled pipes, and the seams are limited by protrusions and depressions on adjacent blocks. 2. Trumpet pop 1, characterized in that it is provided with connecting rods, each of which is monolithic at one of the ends of each block, with the open end of each rod covered with elastic material and installed in a hole at the other end of the adjacent block. u / /// /// // /// 1 8 J FIG. 2  /