RU151646U1 - DOUBLE WALL - Google Patents

Abstract

1. A tongue-and-groove wall consisting of load-bearing tongue-and-groove piles, having load-bearing piles of a profile, a trough-like or flat tongue, characterized in that each load-bearing pile is a profile having ends at the ends, which are welded by these areas along the outer part of the shelf of the trough or flat tongue moreover, the trough-like or flat tongue at the ends contain locks, and the tongue is constructed in such a way that the position of each of the adjacent load-bearing piles with profiles having platforms at the ends, relative to another neighboring made either towards, or in a checkerboard pattern, or in parallel with the use of intermediate sheet piles between bearing piles or without it. 2. The sheet pile wall according to claim 1, characterized in that it contains intermediate sheet piles, which are made with locks mating to the sheet pile tongue.

Description

The utility model relates to hydraulic engineering and can be used in the construction of piers, locks, dams, dock structures, mooring bollards, bridge supports; construction of retaining walls; shore protection, water intake and drainage structures; treatment facilities, collectors, tunnels, underground structures, ring closed and open structures, fences; when arranging pits, slopes, foundations, walls of trenches.

Known systems of steel I-walls, manufactured by Arcelor [1, 2], which use special I-beams and Z-tongues to form a rigid wall, which is necessary to hold a large load. Known sheet pile wall manufactured by Arcelor [3], consisting of I-beam profiles with locks, between which sheet pile profiles with lock joints are installed, characterized in that the carrier pile is made in the form of a welded or hot-rolled T-shaped profile (tee), on the free end of which a flat or U-shaped tongue-and-groove profile of cold or hot rolled with locks at the ends is fixed by a welded joint. The solution is chosen for the prototype.

This and the above sheet pile walls have restrictions on the size of the forms attached to the rolling standard sizes. It has many special hot-pressed connector locks, which makes its manufacture more complicated and expensive. Each connector has two locking parts, which impairs the antifiltration properties of the sheet pile wall. It has the same thickness of the shelves, which leads to a weighting of the structure and an increase in material consumption. A special carrier beam of limited sizes has special protrusions or recesses, which dramatically increases its cost.

The objective of the claimed utility model is to eliminate the disadvantages of the prototype.

The technical result of the claimed utility model is the absence of any intermediate connectors, which dramatically reduces the cost of 1 m ^{2 of the} wall, reduces the cost of clogging, reduces filtering; relatively simple welding production; raw materials for the sheet pile wall are always there; the possibility of replacing many combined systems; the convenience of concreting or falling asleep from the neutral axis of the wall to the front line of the anchor shelves; ideality when using a sheet pile wall in case of slope sliding, or a viscous marshy base; the tongue and groove wall has a high coefficient of utility, surpassing that of pipe-tongue walls; the ability to combine countless piles with a whole range of classical trough tongues existing in the world; a beam pile can always be made to the desired length without docking it like a pipe tongue.

The specified technical result is achieved due to the fact that the sheet pile wall, consisting of bearing sheet piles, having bearing piles of a special profile, a trough-like or flat sheet pile, characterized in that each carrier pile is a special profile having platforms at the ends, which are welded with these platforms along the outer part of the shelf of a trough or flat tongue, and the trough-like or flat tongue at the ends contain locks, and the tongue wall is constructed in such a way that the position of each of the adjacent load-bearing piles with about special profiles with platforms at the ends, relative to the other neighboring one, either towards or in a checkerboard pattern, or in parallel with the use of intermediate sheet piles between bearing piles or without it.

The tongue wall preferably comprises intermediate tongue piles which are provided with locks that are mated to the tongue of the carrier pile.

The technical result is ensured by the fact that the locks of hot-pressed sheet piles are located on the neutral axis, therefore they are more protected from the so-called horizontal loads (for example, ice hummocks, ice fields, tsunamis, strong currents, etc.), and in addition , locks specially can still be closed with an anchor shelf of a brand or beam.

Because connecting connectors for a special profile are not required, then the choice of types of main piles is not limited. In this case, you do not need expensive special hot-rolled sheet pile beams with recesses. The choice of piles is determined only by the loads, which determines the enormous invariance of piles, and which, in turn, affects the reduction in the cost of the sheet pile wall, and the ability to choose piles that can withstand enormous bending moments.

Brief Description of the Drawings

In FIG. Figure 1 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile wall hot-rolled with trough dowels: hot-rolled beam, hot-rolled sheet pile. The basic version - there are no intermediate sheet piles. In special cases, as an intermediate sheet pile, it is possible to use any reasonable even number of hot-rolled sheet pile.

In FIG. Figure 2 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile wall hot-rolled with trough tongues: hot-rolled beam, hot-rolled sheet pile. A special case is a pair of hot-smoked trench grooves as an intermediate sheet pile.

In FIG. Figure 3 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile wall hot-rolled with trough tongues: hot-rolled beam, hot-rolled sheet pile. A special case is two pairs of trough sheet piles as an intermediate sheet pile.

In FIG. Figure 4 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile wall with flat tongues: hot-beam, hot-sheet flat tongue. The basic version - there are no intermediate sheet piles. In special cases, as an intermediate sheet pile it is possible to use any reasonable number of hot-rolled sheet pile. In FIG. Figure 5 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile wall with flat sheet piles: hot sheet beam, hot sheet flat sheet pile. A special case is a stripper made of hot-rolled flat sheet pile.

In FIG. Figure 6 shows an example of a tongue-and-groove wall in the form of a double-sided reinforced sheet pile wall with flat sheet piles: Double-sided reinforced RCS: hot-rolled beam, hot-rolled flat sheet pile. Basic version (reinforced): there are no intermediate sheet piles. In special cases, as an intermediate sheet pile it is possible to use any reasonable number of hot-rolled sheet pile.

In FIG. 7 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile sheet with cold tongues: hot-rolled beam, cold-rolled tongue and groove. The basic version - there are no intermediate sheet piles. In special cases, as an intermediate sheet pile it is possible to use any reasonable even number of cold-smoked trough sheet piles.

In FIG. Figure 8 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile sheet with cold tongues: unequal hot-rolled beam, cold-rolled tongue and groove. The basic version - there are no intermediate sheet piles.

In FIG. Figure 9 shows an example of a tongue-and-groove wall in the form of a double-sided sheet pile sheet with flat tongues: hot-rolled beam, cold-rolled flat sheet pile of the first and second types. The basic version - there are no intermediate sheet piles. In special cases, as an intermediate sheet pile it is possible to use any reasonable number of cold-smoked flat sheet piles of type III, pairs cold-smoked tongue-and-groove tongues, pairs of z-profiles located through an even number of opposite piles.

In FIG. 10 shows an example of a tongue-and-groove wall in the form of a double-sided tongue-and-groove wall with cold-rolled flat, cold-smoked z-shaped and cold-worked tongue-and-groove tongues: hot-rolled beam, reinforced cold-rolled sheet pile of type V, cold-rolled tongue and groove. The basic version - there are no intermediate sheet piles. In particular cases, it is possible that there is an even number of cold-smoked trough sheet piles as an intermediate sheet pile for each pair of (opposite) piles.

In FIG. 11 shows an example of a tongue-and-groove wall in the form of a bilateral tongue-and-groove wall with cold-smoked flat, cold-smoked z-shaped and cold-smoked tongue and grooves: hot-rolled beam, cold-worked flat tongue of type III, a pair of cold-smoked Z-profiles . A special case - as an intermediate sheet pile - a pair of cold-smoked Z-profiles.

In FIG. 12 shows an example of a sheet pile wall in the form of a one-sided sheet pile wall with hot-rolled sheet piles: hot-rolled beam, hot-rolled sheet pile. The basic version is 1 nashchelnik. Any odd number of cold-cut trough tongues as an intermediate sheet pile is possible.

In FIG. 13 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with hot-rolled sheet piles: hot-rolled beam, hot-rolled flat tongue. The basic version - there are no intermediate sheet piles. It is possible to use any reasonable number of intermediate sheet piles from hot-pressed flat sheet piles between two adjacent piles. The same applies to other types of lock profiles, if released.

In FIG. 14 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with hot-rolled sheet piles: hot-rolled beam, hot-rolled flat tongue. A special case is a hot-rolled flat sheet pile as an intermediate sheet pile.

In FIG. 15 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with hot-rolled tongue-and-groove tongues, the locks of which are asymmetrical in the composition of the piles: hot-rolled beam, hot-rolled tongue-and-groove tongue with asymmetric locks. The basic version - there are no intermediate sheet piles. As an intermediate sheet pile, a reasonable number of hot-rolled sheet pile tongues with asymmetric locks is possible. It is also possible to use a reasonable number of pairs of hot-rolled z-profiles as intermediate sheet piles, in case of the start of their production.

In FIG. Figure 16 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with hot-rolled tongue-and-groove tongues, the locks of which are asymmetrical in the pile structure: hot-rolled beam, hot-rolled tongue and groove with asymmetric locks, a pair of mating hot-rolled Z-profiles.

A special case - as an intermediate sheet pile - a pair of hot-smoked Z-profiles.

In FIG. 17 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with cold-rolled tongue-and-groove tongues: hot-rolled beam, cold-rolled tongue-and-groove tongue. The basic version is a sheath made of one cold-smoked trough sheet pile. Any odd number of cold-cut trough tongues or pairs of z-profiles as an intermediate sheet pile is possible.

In FIG. Figure 18 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with cold-rolled tongue-and-groove tongues: unequal hot-rolled beam, cold-rolled tongued tongue. The basic version is a sheath made of one cold-smoked trough sheet pile.

In FIG. 19 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with cold-smoked flat, cold-smoked Z-shaped, cold-smoked tongue and grooves: hot-rolled beam, cold-smoked flat tongue of type I, cold-smoked tongue and groove. The basic version is a sheath made of one cold-smoked trough sheet pile. A special case is any reasonable odd number of cold-smoked trough sheet piles as an intermediate sheet pile.

In FIG. 20 shows an example of a tongue-and-groove wall in the form of a one-sided tongue-and-groove wall with cold-rolled tongue-and-groove tongues, the locks of which are asymmetrical in the composition of the piles: hot-rolled beam, cold-worked tongue-and-groove tongue with asymmetric locks. The basic version - there are no intermediate sheet piles.

In FIG. 21 shows the arrangement and arrangement of the main elements of the sheet pile wall.

In FIG. 22 shows the arrangement and arrangement of the main elements of the sheet pile wall with intermediate profiles.

In FIG. 23 shows the structure of the special profile and the principle of welding it with pads along the outer part of the shelf of a trough or flat sheet pile.

Utility Model Implementation

Declared tongue and groove walls are beam without solid-rolled intermediate locks. Those. beam tongues are used without the use of all-rolled (regardless of the production method) intermediate locks, which are usually used both in beam tongues and in pipe tongues.

The declared sheet pile walls are based on the same principle: structural supports consist of the main pile profiles: beams or brands (hot-rolled or welded). A tongue-and-groove tongue is welded to the upper shelf of the beam or the free end of the brand. It turns out some kind of "glass". Two such glasses are set towards each other in a staggered manner, with a shift along the neutral axis of rotation so that the right lock of the left sheet pile closes with the left lock of the right inverted sheet pile. In this case, the role of antifiltration protection is played by pairs of ordinary, classic, hot-rolled (hot-rolled) or cold-rolled (cold-rolled) sheet piles, which are intermediate sheet piles.

The special profile is a profile (brands, beam, etc.) welded, bent, cold-smoked, hot-smoked, is welded along the outer part of the shelf of the trough (or flat) sheet pile (hot-smoked, cold-smoked).

All the beam schemes proposed below are based on the same principle as any previously existing ones: structural supports consist of the main pile profiles (bearing piles): beams or brands. The main pile profiles act as retaining elements. They resist horizontal loads from soil and hydrostatic pressures. Bearing piles also transmit vertical loads to the ground.

Intermediate piles, in the form of one or several pairs of classic sheet piles (hot-smoked, cold-smoked), in addition to antifiltration and anti-suffusion protection, play the role of sensing the spread of soil and transferring loads. They can be shorter than the main pile profiles (bearing piles).

The second fundamental difference between the declared sheet pile walls is the special position of the "glasses" relative to each other: they are directed towards each other. Along with the shift (staggered order), ceteris paribus, such an arrangement generates a greater moment of inertia and less weight per 1 m ^{2 of the} system at the same time as a similar system, the same system, but set without the shift described above.

So, putting “wineglass” piles towards each other, but without a shift, we will get the moment of inertia two times higher than planned, and the elastic moment is the same as in our system and the system with a shift, but the weight is 1 m ² much higher. For example, in the case of using the known sheet piles L5D, L5UM, the weight will be doubled. In this case, it is necessary to carry out additional welding work to get a hexagon. By placing the “wineglass” systems in parallel and next to each other, the “wineglasses” up horizontally, we get a moment of inertia much less, and the weight per square meter is the same as in the system with the “right” shift.

In addition, in this case, we need a trough tongue with asymmetric locks. Such dowels with asymmetric locks for this period are made only in Japan, their transportation is expensive, long and the cost is high. The claimed utility model aims to replace similar sheet piles with asymmetric locks with an alternative sheet piling design.

If in the declared sheet pile wall we will increase the shift of “glasses”, for example, by one pair of troughs, then the moment of inertia will obviously decrease. For example (L5D, L5UM): the moment decreases slightly less than half if we increase the system by a couple of troughs. Weight by 1 m ² will decrease, but we will not reach the right moment.

The current economic situation requires a quick search for technological solutions to reduce the cost of sheet pile walls, including for newly constructed deep-sea ports in the south and north of the country, and to minimize dependence on imported components.

In FIG. 1 to FIG. 20 shows contactless single-sided and bilateral beam sheet pile walls with an internal anchor and intermediate sheet piles (skirt) of trough (and / or flat) sheet piles, or otherwise - "glass" sheet pile walls.

For deep-sea ports, powerful and long bearing sheet piles are needed. As a rule, such piles can be either circular or beam. Both options require welding - connecting a tongue-and-groove lock and joining parts of the pile. A new large diameter pipe is expensive and time consuming. Plus, it needs an even more expensive lock connector, plus expensive logistics. Large beams in the current technological order are not produced. So, the beam needs to be welded. And it’s even better to use the Taurus instead of the beam - it weighs less and it is easy for him to pick up the necessary moments of the section. Modern welding technologies allow to obtain the strength of the welded joint at a level no worse than the strength of the base metal. These facts served as the starting point for the development of the technical solution described below.

The essence of the claimed utility model is expressed in the following construction (see Fig. 21).

The utility model is a sheet pile wall having bearing and intermediate sheet piles. Bearing piles are made of special profile (2), i.e. from profiles of the type: Taurus, beam, etc., which are welded, bent, cold-smoked, hot-smoked, which are welded along the outer part of the shelf (1) of a trough or flat tongue (hot-smoked, cold-smoked). The weld location is shown as (3) in FIG. 21.

Intermediate sheet piles (6) (see Fig. 22), if they are present in the sheet pile wall, are made with locks mating to the sheet pile sheet (4). The trough-like or flat tongue at the ends of the special profile also contains locks (4).

A feature of the sheet pile wall is that each carrier pile is a special profile having pads 5 at the ends (see Fig. 23), which are welded 3 by these pads 5 along the outer part of the shelf 7 of the trough or flat tongue 2, and the trough-like or flat tongue 2 at the ends contain locks 4.

The tongue wall is constructed in such a way that the position of each of the adjacent non-bearing bearing piles relative to the other neighboring is made either towards or in a checkerboard pattern, or in parallel with the use of intermediate sheet piles between the bearing piles or without it (see Fig. 1-Fig. 20) .

Special profile (brands, beam, etc.) (2) welded, bent, cold-smoked, hot-smoked, etc. is welded (3) along the outer part of the shelf (1) of the trough (or flat) sheet pile (hot-smoked, cold-smoked). It turns out some kind of glass in cross section. The resulting product, let's call it a “shot glass” - there is a carrier pile (main pile profile). From here on we call the name - wineglass sheet pile walls.

Bearing piles of the claimed utility model, depending on the goals and objectives,

are installed with an intermediate sheet pile or without, or sequentially next to each other, or towards each other, or to meet each other, but with a shift. At the same time, a number of hot-smoked or cold-smoked trough (flat) sheet piles plays the role of an anti-filtration curtain (PFZ).

The shelf of a beam or brand far from the tongue of each carrier pile is, in its technical sense, an internal anchor and this is the first characteristic feature of the utility model.

For bearing piles of declared sheet pile walls, not only beam profiles and T-profiles can be used, but also profile pipes, welded boxes (beam, T-profiles), half-tube profiles, multi-faceted open profiles and other special profiles of various manufacturing methods. From the point of view, the mechanical characteristics of the cross section, the T-profile is the most effective. However, for special conditions or tasks, other profiles may be required.

In a “shot glass”, a beam or Tauris resist horizontal loads from soil and hydrostatic pressures, transfer vertical loads to the soil, play the role of an internal anchor, and sheet pile - transfers the load to adjacent bearing piles and plays the role of an anti-filter, anti-suffusion curtain. The presence of an internal anchor does not exclude or even simplifies additional anchoring.

The configuration options for joining a beam or brand and a classic sheet pile are many: either attach a pile to each trough, or through one, or through two troughs, etc.

It is possible to weld a beam or Tauri both to the lower row of troughs of a sheet pile wall, and to the upper row, or to both rows of troughs simultaneously. Variants (only some) are shown in FIG. 1 to FIG. twenty.

Depending on the relative position of the internal anchors, the sheet piling can be one-sided (all internal anchors on one side of the neutral axis) or bilateral (internal anchors on different sides of the neutral axis).

Depending on the configuration of the sheet pile wall, between the supporting piles, a lintel may be provided from one or more classic (trough, Z-shaped, flat) sheet piles.

Glasses can be connected without the use of additional locks connectors:

- towards each other with or without welding;

- towards each other in a checkerboard pattern, with a shift along the neutral axis in such a way that the right lock of the left sheet pile is mated with the spruce lock of the right inverted sheet pile;

- through two (four, six, etc.) non-anchor classic trough tongue-and-groove profiles with symmetrical locks (intermediate pile, nashchelnik, skirt), the anchor part of the bearing piles being on opposite sides of the neutral axis;

- through one (three, five, etc.) non-anchor classic trough tongue-and-groove profiles with symmetrical locks (intermediate pile, flange, skirt), the anchor part of the bearing piles being on one side of the neutral axis;

- if there is an asymmetric lock on the trough tongue-and-groove profile (hat systems, hat-type) - directly one after the other, with or without a skirt, and the anchor part of the bearing piles is located on one side of the neutral axis.

In the case of replacing the trough sheet pile with some types of flat sheet piling profiles, the parity / oddity mode of the intermediate piles is optional.

The infinite variability of the parameters of welded beams and / or brands and the presence of a variety of hot-rolled beams, together with a sufficient number of trough tongues in the world (cold-rolled, hot-rolled), and a multitude of schemes for sorting troughs in a sheet pile wall, make it possible to optimally select the parameters of the sheet pile wall and in terms of the coefficient of efficiency of use of the material (Keff = W / M), and in the sense of saving the weight of one square meter of the wall (M, kg / m ² ), provided that the required mechanical characteristics of the cross section are achieved (J, cm ⁴ / m and W, cm ³ / m), reduce system filtration, reduce work In terms of immersion, to achieve and exceed the high moments of sheet pile walls, including those based on large diameter pipes, beam (including imported) sheet pile walls with locks - connectors.

In essence, the glass sheet pile walls are a designer and this is the second characteristic feature of the sheet pile wall of the claimed utility model.

An important extension of the sheet pile wall is the case of replacing the trough sheet piles with flat sheet piles of various production methods (hot-smoked, cold-smoked). This is especially true in connection with the construction of ports in the northern seas. flat hot-groove sheet pile has the highest load on the opening of the throat of the castle and can withstand high loads caused by hummocking of ice fields. In addition, a flat sheet pile is most suitable for creating curved structures.

The main contribution to the generation of the moments of the cross section in the tongue wall is made by the anchor shelf remote from the neutral axis of the system. The most expensive component of the sheet pile wall is the sheet pile. Therefore, as in any combined wall, in the declared sheet pile wall, the anti-filter curtain from the classic sheet pile may not completely cover the bearing pile (where justified), which further reduces the cost per square meter of the sheet pile wall.

In the case of cold-grooved sheet piles, not only a pair of tongue-grooves, but also a pair of tongue-and-groove Z-profiles, one or several tongue-and-groove tongues are possible, where, due to the mating of the locking elements, the role of one tongue is played by a flat tongue welded to the beam or brand. There are much more options for a sheet pile wall using a variety of cold-grooved sheet piles than there are options for a sheet pile wall based on hot-pressed sheet piles.

The third characteristic feature of the sheet pile wall is as follows.

In the sense of efficient use of the material (k _eff = W / M), the most advantageous solution for the sheet pile wall is to install the bearing piles in a checkerboard pattern. Such an arrangement generates a greater moment of inertia and a lower weight of 1 m ^{2 of the} system at the same time than a similar system, the same system, but set without the shift described above.

Having put the “glass” piles towards each other, but without a shift, we will get the moment of inertia two times higher than planned, and the elastic moment is the same as in our system and the system with a shift, but the weight of 1 m ^{2 is} significantly higher. In the case of sheet piles L5D, L5UM, the weight will be doubled. In this case, it is necessary to carry out additional welding work to get a hexagon.

By placing the “wineglass” systems in parallel and next to each other, the “wineglasses” upward on one horizontal, we get the moment of inertia much less, and the weight per square meter is the same as in a system with a staggered shift. This option is similar to the well-known “hat type” systems.

The so-called “hat-type” sheet pile walls, proposed by the Japanese many years ago, have proven themselves well. But these schemes are only a special case of the sheet pile wall that we offer. Moreover, the Japanese version, as shown above, ceteris paribus, is fundamentally always less effective: at the same moments the weight of a square meter of their wall will be higher than that of comparable systems using trough tongues with a symmetrical lock. And vice versa: with the same weight per square meter of the wall, the mechanical characteristics of the "hat" of the Japanese wall are usually lower. In addition, special “hot” trough tongues with an asymmetric lock are used in the “hat” sheet pile walls, which so far are produced only by Japanese factories and usually do not sell without a beam (long, expensive, speculative).

In some cases, an additional bonus when using a two-sided “wineglass” system is that the sheet pile wall will impede the movement of bottom soil under the influence of ship propellers, dampen the reflected wave, and protect the air curtain from the dynamic effects of ice and the boats themselves.

The fourth characteristic feature of the sheet pile wall of the claimed utility model.

The design of the sheet pile wall does not imply the use of seamless-rolled intermediate locks-connectors, regardless of the method of production of these locks-connectors connecting beam piles and intermediate sheet piles. Such locks and connectors manufactured by Severstal-metiz, PilePro, SteelWall (cold-smoked, hot-smoked), etc. are traditionally used in the well-known hot-rolled beam and pipe sheet pile walls and, with rare exceptions, require welding them to the pile on both sides of the lock-connector with all the additional costs and difficulties resulting from this.

A “rare exception” is HZM ™ ... - / AZ ^® combined beam systems using expensive special beam profiles (sheet piles) and even more expensive RH, RZD, RZU connector locks that do not require welding. But ... Such systems can theoretically be produced by only two manufacturers, but it really produces one. Hot rolled special beam profiles (sheet piles) have a variable cross-section of both shelves (the thickness of the shelf in the middle is less than at the edges) and a recess near each edge of the shelf for a lock connector. The nomenclature of the special profiles themselves is limited. The repeating element of the HZM ™ ... - / AZ ^{® system} can have up to 8 lock-connectors, which increases filtering, reduces reliability, increases the cost per square meter of the wall. Naturally, at the cost of such sheet pile walls are available only to very wealthy customers.

The brightest representative of beam (Tauri) systems that do not use solid-rolled intermediate locks and connectors are beam systems with a cold-rolled anti-filter curtain (cold-rolled PFZ).

In the general case, these are the same “wineglass” systems, double-sided, single-sided, in which, as a special case, flat cold-rolled sheet piles (of various configurations) are used.

In fact, the flat tongue used in these beam (tee) systems plays both the role of PFZ and the role of a lock-connector at the same time.

The length of the welds in these systems is exactly the same as in wineglass systems with hot-grooves. But in systems with cold-smoked PFZ, it is possible to create a larger number of beam and tee schemes.

If we compare beam systems with cold-worked PFZ with similar well-known and well-known beam systems HZM ™ ... / AZ ^® , then always the first system has a weight of 1 m ^{2 and} no more, and the moments (both) are not lower than that of the HZM ™ ... / AZ systems ^® . Well, the economy of the former is incomparable with the economy of the latter: almost two times cheaper even in the West, at least in the east of the country. Moreover, the known beam systems like HZM ™ ... / AZ ^® and their analogues with cold-worked PFZ are not the most optimal in comparison with comparable wineglass systems.

The fifth characteristic feature of the declared sheet pile wall.

Wineglass sheet pile walls - a simple and economical replacement for heavy imported sheet piles and combined beam systems, pipe sheet pile walls. Easy to calculate.

They have a wide range of solutions (W from 3500 cm ³ / m or more). CSNs consist of widely available standard components with moderate added value, available in the domestic market, which dramatically reduces the time required for delivery to the facility. The sheet piling walls of the claimed utility model are easy to manufacture (at least compared to pipe piles). They can be easily produced in any region of the Russian Federation, practically at any metal construction plant or ship repair plant, as well as, if necessary, and in the conditions of the construction site (for example, when the sheet pile wall construct consists of a standard hot-rolled beam and a standard hot-rolled sheet pile, and you just need to connect two flat surfaces by welding without preparing the edges).

Tavr or a beam made by welding for a tongue-and-groove wall may have steps in their design that facilitate the joining of long bearing piles without losing the reliability of the wall (spacing of joint seams at different pile levels). That, if necessary, transportation to remote sites can significantly save on logistics.

The sixth characteristic feature of the declared sheet pile wall.

The topology and variability of the RHS solutions allows you to increase the moments of the cross section at a faster pace than the mass of the cross section. Those. the cost of a square meter of CSF grows more slowly than the moments of the cross section grow. This feature of the RCS allows, if necessary, to exclude additional anchoring, entering into the system of counterforce or struts. The latter entails a sharp increase in the speed of work in the pit and, as a result, the cost of the entire project. Or it allows you to get a deep and extended pit, for example, to immerse the tunnel shield. Or fix a steep slope, protect a deep quicksand, a section of moving soil, the foundation of a multi-story building on the shore of a reservoir.

As in any combined wall, in a sheet pile wall, an anti-filter curtain from a classic sheet pile may not completely cover the bearing pile, which further reduces the cost per square meter of the wall.

Of the foregoing, the declared sheet pile walls, due to their simplicity of design and low cost of their component parts, can effectively replace almost any beam and pipe sheet pile walls. Moreover, the effectiveness of the tongue and groove wall increases with the growth of the required moments of the section.

According to the utility model, sheet pile walls can be used for deep-sea port facilities, and for deep foundation pits without spills, and for fixing extended and / or deep-lying sections of moving soil.

The tongue-and-groove walls can be completely made of domestic components and at the same time surpass practically any imported analogues in cost per square meter of wall.

Claims (2)

1. A tongue-and-groove wall consisting of load-bearing tongue-and-groove piles, having load-bearing piles of a profile, a trough-like or flat tongue, characterized in that each load-bearing pile is a profile having ends at the ends, which are welded by these areas along the outer part of the shelf of the trough or flat tongue moreover, the trough-like or flat tongue at the ends contain locks, and the tongue is constructed in such a way that the position of each of the adjacent load-bearing piles with profiles having platforms at the ends, relative to another neighboring made either towards or in a checkerboard pattern, or in parallel with the use of intermediate sheet piles between bearing piles or without it. 2. The sheet pile wall according to claim 1, characterized in that it contains intermediate sheet piles, which are made with locks mating to the sheet pile tongue.

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