SU1446206A1 - Water-passing structure - Google Patents

Abstract

This invention relates to the construction of culverts under embankments. The goal is to increase reliability. The water throughput construction below 1 contains a tatto pipe. 2, the base 3 of the layers of soil, separated by a panel of flexible material.4. The edge of the flexible material 4 covers the body of the pipe 2, forming the holder 5 located along the outer contour of the body of the pipe 2. The holder 5 and the wedge-shaped layers of the base 3 are thermal and hydrostatic, as well as elements 1 €, redistributing vertical load. 2 during its operation. 1 il.

Description

    i. . ". ..,

tank

YU

Yu

   :

The invention relates to a transport construction, in particular to the construction of a Ypy6 culvert, on railways and roads,

The purpose of the invention is to increase the reliability of the culvert. .

Lia drawing shows the construction, cross-section.

. The conduit under the: in bulk 1 contains the body of the pipe 2, the base layer 3, which is made out of layers. buried soil: the boundary of adjacent layers. serves as a sheet of flexible material 4, the edge of which is wound into the body of embankment 1 and forms a flexible holder 5 located along the outer contour of the body of the pipe 2.

The layers of the base 3 are made in the form of oppositely directed wedges, which form a truncated prism, with the width of the clump that follows in. towards the body of the pipe. 2 of the base 3 layer (soil wedge) is less than the width of the previous layer.

The construction of the water throughput pipe is carried out as follows. The basement of the basement of the pipe is prepared. On clay to weak sandy soils, gravel is crushed by sowing no less than 10 cm. Flow sheet. Tetical material 4, behind the base 3 with a thickness of 20–40 cm, compacted and a wedge of a given size is formed. The edges of the cloth of non-woven synthetic material are laid on the surface of the wedge, the layers of the base 3 are again poured and compacted (the direction of laying of the flexible cloth is shown along the arrow and) to form a prism from counter-wedges. At the same time, each subsequent; in the direction towards the body of the pipe 2, the wedges are made of a smaller width compared to the underlying ones. After the construction of the base, a yoke 5j located along the body of the pipe 2 coaxially to its outer contour is formed. The grooves of the yoke 5, the soil of all 1 around the pipe is compacted and poured to the design mark.

The water throughput works as follows. .. ..

In the autumn period, there is an intense accumulation of moisture in the soil of 1, which, having reached the flexible casing 5, flows down on its surface, is layer-by-layer filtered, flows down on the bottom of the flexible wedge. In winter, the layers of the base 3 and the holder 5 fulfill the functions of the screen, which prevents filtration of the capillary. water up to the body of the pipe 2; due to the slowing down of the intensity of soil freezing around the pipe body and: in the underlying layers.

The sleeve 5 and the layers of the base 3 are made in such a way that the thermal insulator is roped, slowing down its freezing-thawing of the soil in the heat-affected zone — the pipes, that is, from the side of the road surface. The magnitude of the force effect of the frost heave is shrinking. te pipe pipe 2.

- The flexible cover 5, which is hygro- isolating the body of the pipe 2, acts as a shielding element, nepepqd - limiting the load from the overburden of the embankment {on the pipe, reduces stretching in the pipe under high levels Increasing the width of the bases from the layer to the layer 3 allows paBKOMejpHO to distribute the load from -: s-1 of this grant, to the side of. te- Lo 1 ruby, reduce pressure on the bottom of the base.

Claims (1)

Invention Formula . The water throughput construction, containing a pipe placed on the base in the ground and holding it to the holder, while the base and the holder are formed in at least two layers, loose soil, concluded between the flexible material, about the l and -; In order to increase reliability of operation, the base layers are made in the form of open, oppositely directed wedges, the flexible material is open on the side of their lesser height, and the width of each subsequent layer towards the pipe is smaller than the width of the previous one, adjacent to the pipe, communicated with the clip. VNIIPI Order. 6720/33 Circulation 517 Random polygons pr-tie, Uzhgorod, st. Project, 4 Subscription