CS235269B1 - Water-tight joint of circular profil precast building elements imbedded by means of pushing method - Google Patents

Abstract

The device relates to a waterproof joint prefabricated components by the method pressing, for example cement-concrete sewer pipes, ducts, collectors, underpasses and the like, fitted between the foreheads soft liner and connecting ring which is inserted into the continuous groove filled with plastic seal. The waterproof joint can also be used for prefabricated parts of a non-circular profile.

Description

The present invention relates to the watertight joint of prefabricated sections of an annular profile deposited by the embossing method, for example cement-concrete sewer pipes, ducts, collectors, subways and the like.

As a rule, the watertight joints of prefabricated parts of the circular profile are made additionally from the outside of the parts. Therefore, they are not suitable for the placement of prefabricated parts by the push-in method. A suitable watertight joint hitherto used is formed such that the prefabricated elements are tapered at both ends and provided with a continuous saddle groove, onto which a rubber sealing ring overlaid and pressed by a steel connecting ring overlapping the gap between the faces of adjacent prefabricated elements is inserted into the joint. soft plywood or plywood. The main disadvantage of this joint is that the steel joint ring is on the outside of the joint, where it is exposed to aggressive environmental influences, which corrode and thereby lose the desired watertightness. The steel connecting ring immissions have rounded and ground all edges in order not to break the rubber sealing rings. For the same reason, the tapered portion of the prefabricated components must be perfectly smooth, especially in the continuous saddle groove involved in the seal function. The entire joint is therefore very expensive and laborious to assemble;

These drawbacks are eliminated by the watertight joint of the prefabricated circular profile sections deposited by the embossing method provided between the faces of the soft insert and the connecting ring according to the invention, which is characterized in that the connecting ring is inserted into a continuous groove filled with a plastic seal.

- 2 235 269

The advantage of the waterproof joint according to the invention is its simplicity, reliability and extended service life, with less steel consumption, energy and less labor.

In the accompanying drawings, FIG. 1 is a cross-sectional view of the prefabricated panels at the watertight joints when the joint ring is fitted on the site during the pressing operation; FIG.

Example 1

Prefabricated elements 1 of circular profile in the form of cement-concrete sewer pipes were fitted with the method of pressing. Each prefabricated panel 1 was provided on both ends 2 with a continuous groove 6 filled with a plastic seal 5. Between the faces 2 of adjacent prefabricated panels 1 a two-piece soft plywood ply 4 and a loose connecting ring 3 were inserted at the construction site. seal 5.

Example 2

The prefabricated elements 1 of the circular profile were fitted with the pressing method. Each prefabricated part 1 was provided with a continuous groove 6 filled with a plastic seal 5 on the front face 2 and had a concreting connecting ring 3 at the rear face 2, which was inserted into the continuous groove 6 formed on the front face 2 of the adjacent prefabricated part 1 and filled with a plastic seal 5, a soft wood insert 4 was inserted between the two faces 2 of adjacent prefabricated elements 1.

The waterproof joint can also be used for prefabricated non-circular sections.

Claims (1)

SUBJECT OF THE INVENTION 235 269 A watertight joint of prefabricated circular profile members embedded in the embossing method provided between the faces of the soft liner and the connecting ring, characterized in that the connecting ring (3) is inserted into a continuous groove (6) filled with a plastic seal (5).