RU2368723C1 - Interlocking wall with metal sealing element - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention is related to interlocking walls used in hydrotechnical construction and bank protection. Interlocking wall is made of interlocking piles connected to each other in lock. Each lock includes side walls and back wall, which is rigidly fixed to internal surfaces of lock side walls with creation of cavity, in which interlocking tongue of adjacent pile is installed. Mentioned cavity of each lock is equipped with metal sealing element that extends longitudinally relative to pile axis. Sealing element is rigidly fixed to back wall of interlocking lock with the possibility of partial closure of mentioned cavity and at least partial reduction of gap between back wall of interlocking lock and interlocking tongue of adjacent pile.

EFFECT: invention makes it possible to increase quality of interlocking wall assembly and also its soil impermeability.

3 cl, 5 dwg

Description

The invention relates to sheet pile walls and can be used in the construction of marine and river hydraulic structures, as well as in the construction of retaining walls for various purposes.

One of the tasks to be solved during the construction of walls with tongue-and-groove locking joints is to ensure their soil impermeability, violation of which can lead to a decrease in the strength of the hydraulic structure and even to its destruction.

The task of ensuring soil tightness and tightness of the tongue and groove joint is solved in the prior art, in particular, by filling the gaps in the tongue and groove joints of the sheet piles with a sealing compound, by welding the elements of the joint joint, connecting them with glue, etc.

Known, for example, is a retaining wall that is sealed with a mortar based on concrete or concrete (RU No. 2001128073), a wall is known made in the way in which the tongue and groove piles are welded together using a welding electrode (RU No. 2002127801). These known walls are sealed and soilproof.

However, the disadvantage of these sheet pile walls is the great complexity of their construction and the associated high construction cost. Under normal conditions of bank protection, a high tightness of the tongue and groove wall is not always required, however, the requirement of soil impermeability is always presented.

One of the less expensive areas for ensuring soil tightness of sheet pile walls is the creation of structures in which the tightness of the locking connection is ensured by the structural elements of the locking connection of the sheet pile wall.

For example, a tongue-and-groove wall of flat building elements is known, on the connected surfaces of which tongue-and-groove connecting elements are provided having locking bodies for mutual elastic fixing of adjacent building elements (RU No. 200222135912).

The disadvantage of this known sheet pile wall is its relative complexity and complexity.

The closest analogue of the proposed technical solution for design features is a sheet pile wall, including sheet piles connected to each other, sheet piles rigidly connected to the piles and sheet piles, each lock containing side walls and a rear wall rigidly attached to the inner surfaces of the side walls of the castle to form the cavity in which the tongue of the adjacent pile is placed (RU 2081238).

The disadvantage of this technical solution is the permeability of the castle connection due to the presence of gaps between the tongue and groove protrusion and the castle body, through which it is possible to wash out the soil of the enclosed space.

From the point of view of providing soil impermeability, it is desirable to reduce the size of the cavity in which the protrusion of the adjacent pile is placed in order to minimize gaps. However, this worsens the assembly conditions.

According to the present invention, a technical solution is proposed in which not the entire gap in the tongue-and-groove joint is reduced, but a local reduction of this gap is created to the minimum possible values or, in some cases, its complete exclusion. Moreover, in general, in the remaining sections, the size of the gap in the castle connection is not reduced, which does not worsen the conditions for assembling the sheet pile wall.

The technical problem solved by the present invention is to reduce the gap through which the soil can penetrate in the castle connection of the tongue wall, by creating a local narrowing in the specified gap. EFFECT: increased soil impermeability of a sheet pile wall without increasing the cost of construction and increasing the convenience of assembly.

The specified technical problem is solved due to the fact that in the sheet pile wall, which includes interconnected piles driven into the ground, sheet piles and tongue-and-groove locks rigidly connected to the piles, each sheet pile lock containing side walls and a rear wall rigidly attached to the inner surfaces of the side walls the lock with the formation of a cavity in which the tongue of the adjacent pile is placed, each lock is equipped with a metal sealing element longitudinal relative to the axis of the pile installed in the cavity and rigidly attached to the rear wall of the tongue-and-groove lock with the possibility of partial overlapping of the cavity and at least partial reduction of the gap between the rear wall of the castle and the tongue of the adjacent pile.

The sealing metal element may be made of a rod of round, rectangular or square cross-section.

The tongue of each pile in said tongue wall can be made up of two corner profiles welded to the pile with one of their shelves to form a gap between these welded shelves, while the sealing element can be placed at least partially in the said gap between the welded shelves corner profiles.

By supplying each of the tongue-and-groove locks with a longitudinal metal sealing element, rigidly attached to the rear wall of the tongue-and-groove lock, overlapping, at least partially, the gap between the rear wall of the tongue-and-groove lock and the tongue of the tongue of the adjacent pile, a greater or lesser degree is achieved, depending from the tolerances of the actual design, local reduction of the gap in the tongue and groove connection through which the soil can penetrate. The sealing element plays the role of an obstacle, local resistance to the movement of soil particles. The sheet pile wall becomes less permeable. But at the same time, since the metal sealing element is only a local thickening in the cavity of the castle and, accordingly, creates only a local narrowing of the gap, in the remaining areas, outside the sealing element, the cavity of the castle in which the tongue of the adjacent pile is placed remains the same size. The presence of the sealing element does not impair the assembly conditions, as in general, the gap between the tongue and groove and the tongue and groove lock has not changed.

In the case of making a sealing metal element from a bar of square, and especially circular cross-section, this element also serves to center one pile relative to another during assembly, making the assembly process easier.

In the embodiment of the tongue-and-groove wall, when the tongue-and-groove protrusion of each pile is made up of two corner profiles welded to the pile with one of their shelves to form a gap between them, a sealing metal longitudinal element can be placed in the specified gap between the welded shelves of the corner profiles, which provides better overlap clearance in the lock connection and better sealing of the tongue and groove wall. In this case, not only does the clearance decrease, but the path along which soil particles could penetrate from the stagnant space into the water also lengthens, i.e. creates additional resistance to the movement of soil particles.

Reducing the size of the gap creates conditions for stuck in this small gap of soil particles, which accumulate, gradually block it.

The proposed invention provides partial or complete, depending on the tolerances of the real design, overlapping existing gaps between the T-shaped tongue tongue and the inner surface of the tongue-and-groove lock.

This prevents the penetration of soil particles through the castle connection of the sheet pile wall, i.e. contributes to its soil resistance.

In the considered embodiment, when the longitudinal element is round or square in the cross section, the tongue wall is easier to assemble, while the longitudinal element is either superimposed on the gap between the welded shelves of the composite T-tongue tongue of the adjacent pile, and, being welded to the inner surface of the castle, blocks the ground the ability to penetrate through the gaps of the castle connection, or wedges the corner profiles, located in the gap between them.

The possible non-adherence of the longitudinal element to the tongue-and-groove protrusion along the length of the tongue-and-groove lock in a real design does not lead to soil permeability, since the gaps are minimal. In the resulting local narrowing of the gap, small particles of soil that can get into this gap get stuck in it, blocking the gap and further promoting the so-called “overgrowing” of the gaps. In this way, a sufficient soil impermeability of the tongue and groove wall is ensured.

If the sealing element is made of a strip, its thickness is less than the gap between the welded flanges of the corner profiles, of which a T-tongue tongue is made up. Such a tongue-and-groove wall is somewhat more difficult to assemble, but it provides a more reliable overlap of the gap with a strip that goes deeper into the specified gap.

The invention is illustrated by drawings, which depict:

figure 1 - General view of the tongue and groove wall, cross section;

figure 2 is a section aa in figure 1;

on figa, 3b - view In figure 2, embodiments of the sealing element with a square and round cross-sectional shape, respectively;

figure 4 is the same, an embodiment of a sheet pile wall with a composite sheet tongue; the dashed line shows the sealing element of a rectangular cross section, solid - circular cross section. The arrows indicate the direction of movement of the soil in the cleat joint clearance.

The sheet piling wall consists of sheet piles 1 connected in series with sheet pins and tongues.

Pile 1 can be made, for example, of a steel pipe 2, to the outer surface of which a tongue-and-groove lock 3 and a tongue-and-groove protrusion 4 having a T-shaped cross section are welded.

The lock 3 of each sheet pile includes side walls 5 made, for example, of corner profiles and forming a box-shaped lock case, and a rear wall 6 in the form of a restriction plate welded to the inner surfaces of the side walls 5 of the lock 3 to form a cavity B in which tongue and groove 4 adjacent piles 1.

From the side of the cavity B, a metal sealing element 7 longitudinally extending longitudinally along the axis of the pile 1 is welded to the rear wall 6 of the lock, partially or completely covering the gap α between the rear wall 6 and the tongue-and-groove protrusion 4. Element 7 serves as a kind of seal, because with its help, a local narrowing of the gap in the castle connection is created. Element 7 can be made in cross section square, as in figa, round, as in fig.3b, or rectangular, as in fig.4.

During assembly, the sealing element 7 round in cross section plays the role of a centering element around which some rotation of the pile within the gap is possible, which facilitates the assembly process.

Figure 4 shows an embodiment of the invention when the tongue 4 is made of two corner profiles 8, in which the shelves 9 are welded to the pile 1 with the formation of a gap b between them, and the other shelves 10 are turned in opposite directions with the formation of a T-shaped profile tongue and groove. In this case, the sealing element 7, if it is made rectangular in cross section, can be placed in the specified gap b, while the thickness of the rectangular in cross section of the sealing element 8 is smaller than the gap b, so as not to complicate the assembly.

In this embodiment of the invention, the metal sealing element 7, if it is made of round or square cross-section, wedges, pushes the welded flanges 9 of the corner profiles, providing anti-filter protection of the tongue wall.

The proposed sheet pile wall is easy to manufacture, while it has a high soil resistance, its design ensures high build quality.

Claims (3)

1. A tongue-and-groove wall comprising tongue-and-groove piles, tongue-and-groove protrusions and tongue-and-groove locks connected to each other, each lock comprising side walls and a rear wall rigidly attached to the inner surfaces of the side walls of the castle to form a cavity in which the tongue of the adjacent pile is placed, characterized in that each lock is provided with a metal sealing element extending longitudinally relative to the axis of the pile, installed in the cavity and rigidly attached to the rear wall of the tongue-and-groove lock with the possibility of overlapping said cavity and at least partially reducing the gap between the rear wall of the tongue-and-groove lock and the tongue of the adjacent pile. 2. The tongue wall according to claim 1, characterized in that the said longitudinal element is made of a rod of round, rectangular or square cross-section. 3. The tongue-and-groove wall according to claim 1, characterized in that the tongue-and-groove protrusion of each pile is made up of two corner profiles welded to the pile with one of its own shelves to form a gap between them, while the sealing element is placed at least partially in the said gap between welded shelves of corner profiles.

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