RU193588U1 - DOUBLE WALL ELEMENT - Google Patents

Abstract

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; sewage treatment plants, collectors, tunnels, underground structures, ring closed and open structures, fences; when arranging pits, slopes, foundations, walls of trenches. The technical result of the claimed utility model consists in the possibility of using a trough-like tongue without the use of a T-beam; allows you to form a fairly reliable wall with a bend; eliminates the need for cutting the pipe; the process of attaching a trough-like sheet pile to the pipe is simplified. The technical result is achieved due to the fact that the declared tongue-and-groove wall element made of a sheet pile consisting of a pipe, to the walls of which there is a trough-like sheet pile with locks at the ends, characterized in that the pipe has a longitudinal flattening in the form of a shelf, to which a trough-shaped tongue is fixed with its outer part of the shelf to the pipe in areas of separation of direct contact of the tongue from the pipe shelf.

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 sheet pile wall (RU 59083 U), containing sheet pile from pipes with welded tongue-and-groove locks and T-tongue-and-groove protrusions located in the internal cavities of the tongue-and-groove locks of adjacent piles, characterized in that each said T-shaped protrusion is made of two corner profiles welded by some shelves to the pipe, and other shelves facing in opposite directions, while a gap is formed between the welded shelves of the corner profiles, the size of which is selected from the condition that bending arena shelves under the influence of external forces within the elastic deformation and is at least 10% of the height of the welded shelf.

A disadvantage of the above-described known sheet pile wall is that when driving piles, it is possible to open locks having a relatively weak cross section compared to a rigid tubular pile, which will subsequently lead to a decrease in soil impermeability of the wall and erosion of the ground of the stalled space. In addition, the welding of tongue and groove locks to a tubular pile, the most material-intensive and heavy part of the tongue wall, is a rather time-consuming process and requires the use of heavy-duty cranes, high precision, which leads to higher cost of construction. Another disadvantage of this known sheet pile wall is the relatively low rigidity of the locking connecting elements, so that to increase the bearing capacity of the sheet pile wall, it is necessary to reduce the distance between the centers of the piles in the wall, which inevitably leads to an increase in the metal content of the sheet pile wall and higher requirements for the accuracy of immersion of piles.

The tongue-and-groove wall of their welded tongue-and-groove piles is known, in which each pile consists of a pipe and elements of a flat steel sheet pile welded to its outer surface with locks on the free welded edges, and the elements of the flat sheet pile of each pile are placed in the diametrical plane of the pipe (RU 37113, 12.30.2003 g.).

Specified known sheet pile wall has a high metal consumption and, accordingly, cost. In addition, the piles of this sheet pile wall are laborious to manufacture, because the elements of the flat tongue are made by longitudinal section of the standard flat tongue and before welding to the pipe, they are cut to their welded edges, and the locking joints must be strictly in the diametrical plane of large diameter pipes, which seriously increases the cost of the structure.

Known sheet pile wall, mainly a berth or embankment, including sheet piles, each pile consists of a pipe and rigidly fixed on its outer surface a pair of molded elements of a steel sheet pile with sheet piles on the free welded edges; by means of locks adjacent piles are interconnected. The shaped elements of the steel sheet pile are L-shaped in cross section, i.e. on the plan view, and are located obliquely with respect to the axis of the sheet pile wall passing through the axis of the tubular piles (RU 2010085 C1, 03.30.94). As shaped L-shaped elements in a known sheet pile wall, elements of a standard sheet pile, cut along, mainly in half, having a trough-like profile in cross section, for example, a sheet pile of the Larsen type, are used.

In this known sheet pile wall, locks of all shaped elements, i.e. L-shaped elements of the steel sheet pile are located on the neutral axis of the sheet pile wall in plan, and the L-shaped elements of the steel sheet sheet are alternately offset in opposite directions relative to the said neutral longitudinal axis of the sheet pile wall, so that the sheet pile wall has a zigzag profile in plan.

The disadvantages of this known sheet pile wall include the high metal consumption, the complexity of manufacturing piles associated with the need to produce shaped elements from a rolling sheet by cutting it longitudinally with subsequent preparation of the edges under the weld, as well as the need to ensure a given orientation when welding shaped sheet metal elements of steel sheet to each pipe L-shaped elements in opposite directions are skew-symmetric with respect to each other with offset welds relative to the diameter cial pipe plane, which complicates the design of the stand on which the tube assembly is carried out with elements of the steel sheet pile.

In addition, if it is necessary to reduce the center-to-center distance in order to increase the load-bearing capacity of the sheet pile wall, the trough-like tongue must not be cut in half, but into smaller sections, the size from the lock to the weld-in edge, much less than half the distance between the locks of the whole trough-like tongue. This increases the complexity of manufacturing shaped elements and their welding to pipes, part of the cut trough-like sheet pile is wasted.

Known sheet pile wall (RU 57298 U), mainly a berth or embankment, containing welded sheet piles, each of which includes a pipe and a pair of shaped elements welded to its outer surface with tongue-and-groove locks on free welded edges, characterized in that they are used as shaped elements standard rolling elements designed for angular joints of a trough-shaped sheet pile of Larsen type, each of which is made with a flange in the form of a widened heel on the edge adjacent to the pipe, which Rivara to the tube and the size of each profiled element from the lock to the broadened heel is less than half the distance between the sheet piling locks said trough-shaped tongue. The disadvantage of this solution is that the connection of the shaped elements does not allow to form a wall with a bend. The formed lock of connections allows only a slight angle of rotation (less than 5 degrees) when forming the wall. To form a bend, it is necessary to weld the shaped elements on one of the piles at the desired angle. At the same time, the process of connecting such elements to the pipe is very difficult.

The common drawbacks of all solutions also include the need to use hot-rolled locks. All of the above solutions are characterized by high requirements to the geometry of the pipe (ovality) and, in addition, to finding both lock joints in the diametrical plane at the same time. Otherwise, the castle connection when immersing piles will either bite or break the tongue and groove wall lock.

Known sheet pile wall (patent RU 142649U; publ.: 06/27/2014) containing welded sheet piles consisting of pipe elements and connected to each other by means of sheet piling elements, characterized in that the welded sheet piles are made up of half pipe cut into a diametric plane, to the walls of which in the shear zone a flat tongue and groove profile of cold or hot rolled steel is welded for pipes up to 430 mm long with locks at the ends so that the locking part of the flat tongue and groove profile extends beyond half pipe dimension.

This wall allows you to form a fairly reliable wall with a bend, reduces the weight of the structure, simplifies the process of installing the sheet pile wall and connecting its locking elements, reduces the need for hot-pressed connectors, cut hot-rolled tongues, and welded fittings.

The technical problem of the analogue is the possibility of using only a flat sheet pile profile welded to the half pipe. The use of a trough-like tongue and groove is not possible due to the fact that the half-pipe for a trough-tongue-and-groove tongue does not provide sufficient strength as a thrust element such as a tee pile.

The closest analogue is the sheet pile wall element (patent RU 179178U, publ.: 05/03/2018.) Made of a sheet pile, consisting of a part of a pipe, to the walls of which a sheet pile profile with locks at the ends is fixed, characterized in that the sheet pile consists of a large part of the pipe having a C-shaped cross-sectional profile, and a trough-shaped tongue is used as the tongue and groove profile, the latter being fixed to the pipe walls in the shear zone with the outer side of the flanges. In particular, a trough-shaped tongue is fixed to the pipe walls in the shear zone by the outer side of the flanges by welding.

The technical problem of the prototype is the need to cut the pipe longitudinally, so that a trough-like tongue is then welded to the cut ends. Irregularities in the process of cutting the pipe lead to a need for an increase in welded joints in the area of uneven joints with flanges of a trough-groove.

The objective of the claimed utility model is to eliminate the disadvantages of the prototype, the possibility of using a trough-like tongue and groove, while maintaining the same advantages and simplifying the process of attaching the trough-tongue-and-groove tongue to the pipe.

The technical result of the claimed utility model consists in the possibility of using a trough-like sheet pile without using a T-beam; allows you to form a fairly reliable wall with a bend; eliminates the need for cutting the pipe; simplifies the process of attaching a trough groove to the pipe.

The specified technical result is achieved due to the fact that the declared sheet pile wall element made of a sheet pile, consisting of a pipe, to the walls of which a trough-like tongue is fastened with locks at the ends, characterized in that the pipe has a longitudinal flattening in the form of a shelf, to which the trough-like tongue fixed by its outer part of the shelf to the pipe in areas of separation of the direct contact of the tongue from the pipe shelf.

In particular, a trough-like tongue is secured to the pipe in zones of separation of the direct contact of the tongue from the pipe shelf by a welded joint.

In particular, a trough-like tongue is secured to the pipe in the joint areas of the pipe flange and the tongue flange by bolting.

In particular, a trough-like tongue is secured to the pipe in areas where the direct contact of the tongue and groove flange from the pipe shelf is separated by a bolt joint.

In particular, a shelf of a trough-like tongue can be made larger than a shelf formed by flattening of a pipe.

In particular, a shelf of a trough-like tongue can be made smaller than a shelf formed by a flattened pipe.

In particular, the flange of the trough tongue-and-groove may be the same size as the flange formed by the flattened pipe.

It is permissible that mounting and spill holes are made in the pipe.

Brief Description of the Drawings

In FIG. Figure 1 shows the device of the utility model (view in volume and from the end) when the shelf of a trough-like tongue in size corresponds to the size of the shelf formed by the flattening of the pipe.

In FIG. Figure 2 shows the device of the utility model (view in volume and from the end) when the shelf of a trough-like tongue in size is larger than the size of the shelf formed by the flattening of the pipe.

In FIG. Figure 3 shows the device of the utility model (view in volume and from the end) when the shelf of the trough-like sheet pile is smaller in size than the size of the shelf formed by the flattened pipe.

In FIG. Figure 4 shows examples of the formation of sheet pile walls with a change in the distance between the pipes depending on the change in the length of the shelf formed by the flattening of the pipe.

In FIG. 5 shows an example of the formation of a sheet pile wall with a bend.

In the drawings: 1 - pipe, 2 - pipe shelf (flattened area), 3 - tongue groove, 4 - tongue flange, 5 - tongue lock, 6 - welded joint zone.

Utility Model Implementation

The sheet pile wall element of the sheet pile, consisting of a pipe, to the walls of which a trough-like sheet pile is fixed with locks at the ends.

New is that the pipe 1 (see Fig. 1) has a longitudinal flattening in the form of a shelf 2, to which a trough-like tongue is fixed with its outer part of the shelf 3 and is welded by welding 6 to the pipe 1 in the separation zones of the direct contact of the tongue 3 from the shelf 2 pipes 1.

The dimensions of the flange 3 of the trough-shaped tongue may differ from the dimensions of the flange 2 formed by the flattening of the pipe 1 depending on the goals and objectives.

For example, the flange 3 of the trough-groove can be the size of the flange 2, formed by the flattening of the pipe 1 (see Fig. 1).

Also, the shelf 3 of the trough-like tongue can be made larger than the shelf 2, formed by the flattening of the pipe 1 (see Fig. 2).

Or, the shelf 3 of the trough-like tongue can be made smaller than the shelf 2, formed by the flattening of the pipe 1 (see Fig. 3).

Fastening is carried out by welding 6, or by bolting between shelves 2 and 3 through specially made through holes (this connection is not shown in the drawings).

The welded joint 6 is located in the separation zone of the direct contact of the tongue of the tongue 3 from the shelf 2 of the pipe 1, that is, in the place where the surface of the pipe 1 and the outer surface of the tongue in the portion of the shelf 3 or flanges 4 form an acute angle between themselves in cross section.

The resulting pile has, like the prototype, a closed section, which dramatically increases the rigidity of the structure. As a result, the strength and reliability of the entire structure are increased compared to the same as if the trough-like tongue was fastened with a shelf to a tee pile, but unlike the prototype in this utility model, the pipe does not need to be cut.

To form the flange 2, the pipes 1 are flattened by the bending equipment. For example, a wedge table with a press base is placed inside the pipe and, with the help of a movable rod, it is moved along the pipe after each pipe seal (deflection) by pressing the upper part of the press.

In this case, the shape of the wedge table form the deflection of the pipe to the required chord length (shelf 2 pipe 1). Why the shape of the wedge table in its upper part to half is the cross-sectional shape of the pipe 1 with the shelf 2 already formed.

Sheet piles with their locks 5 can be combined only by changing the polarity. Therefore, having the groove wall elements of this utility model staggered during production and driving, the groove walls with the desired bend can be designed without additional costs (see Fig. 5).

If necessary, mounting and spill holes can be made in the pipe (not shown in the drawings).

Moreover, by varying the length of the flange 2 of the flattened pipe 1, you can adjust the distance between adjacent pipes - from the maximum when the adjacent pipes almost close to each other, to the minimum - when the length of the flange 2 of the pipe 1 is minimal. The latter case is used with a minimum load on the tongue wall, and the first option is used with a maximum load. An example of a change in the distance between the pipes from a change in the length of the shelf 2 can be seen in FIG. 4 (a, b, c), where FIG. 4 (a) - in the case of large moments of inertia, they are chosen to restrain the slopes or coasts from sliding, when the exact direction of sliding is known.

Variant of FIG. 4 (b) is chosen with minimal loads on the sheet pile wall in order to save resources spent on pipe bending.

Variant of FIG. 4 (c) is chosen at maximum loads on the sheet pile wall - this is the most durable option for fastening the flange 2 of the pipe 1 with the flange 3 of the tongue. It is chosen in the case of large moments of inertia to deter slopes or coasts from sliding, and in those cases when the exact direction of sliding is difficult to predict. But at the same time, the process of flattening the pipe is complicated.

As can be seen from FIG. 5 sheet pile wall can be successfully formed with a large bend. Due to the use of a cold rolled profile with locks at the ends, the weight of the structure is reduced, the need for using expensive hot-pressed connectors, cut hot-rolled tongues, and welded fittings is eliminated. A closed profile section of the pile facilitates its immersion and increases rigidity. The thickness of the cold-rolled profile can vary with respect to immersion conditions and the wall thickness of the pipe, which allows you to further optimize the weight. The pile is easy to manufacture and can be welded directly at the place of use from the pipe.

Thus, the utility model provides the possibility of using a trough-like sheet pile without the use of a T-beam, allows you to form a sufficiently reliable wall with a bend, eliminates the need for cutting the pipe and simplifies the process of attaching the trough-like sheet pile to the pipe.

Claims (7)

1. The tongue-and-groove wall element made of a tongue-and-groove pile consisting of a pipe, to the walls of which a trough-like tongue is fastened with locks at the ends, characterized in that the pipe has a longitudinal flattening in the form of a shelf, to which the trough-like tongue is fixed by its outer part of the shelf to the pipe in zones of separation of direct contact of the tongue from the pipe shelf. 2. The tongue-and-groove wall element according to claim 1, characterized in that the trough-like tongue is fixed to the pipe in areas of separation of the direct contact of the tongue from the pipe shelf with a welded joint. 3. The tongue-and-groove wall element according to claim 1, characterized in that the trough-like tongue is fixed to the pipe in the areas of the joint between the pipe shelf and the tongue shelf by bolting. 4. The tongue-and-groove wall element according to claim 1, characterized in that the shelf of the trough-like tongue is made larger than the shelf formed by the flattening of the pipe. 5. The sheet pile wall element according to claim 1, characterized in that the shelf of the trough-like sheet pile is smaller than the shelf formed by the flattened pipe. 6. The tongue-and-groove wall element according to claim 1, characterized in that the shelf of the trough-shaped tongue in size corresponds to the size of the shelf formed by the flattened pipe. 7. The sheet pile wall element according to any one of paragraphs. 1 to 6, characterized in that the pipe has mounting and spill holes.

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