RU2754744C1 - Sheet pile wall - Google Patents

Abstract

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic engineering and can be used in the construction of berths, locks, dams, dock structures, mooring posts, bridge supports; the construction of retaining walls; shore protection, the construction of water intake and drainage structures; sewage treatment plants, collectors, tunnels, underground structures, circular closed and unclosed structures, fences; in the construction of pits, slopes, basements, trench walls. The sheet pile wall consists of U-shaped load-bearing sheet piles with locking elements at the ends, to the outer part of which anchor piles are attached. Each anchor pile is made in the form of two identical C-shaped or Σ-shaped profiles connected to each other, for example, by welding or bolted connections and forming together a pile of H-shaped or O-shaped cross-section, while the profiles with their shelves are adjacent to the outer parts of the sheet piles and are attached to them either motionless with welded seams, or with the possibility of mutual longitudinal movement in guides fixed on the outer sides of the sheet piles with welded seams.

EFFECT: increasing the bearing capacity of the sheet pile wall, reducing its metal consumption, reducing the labor intensity and costs of manufacturing and installation.

3 cl, 4 dwg, 4 tbl

Description

The invention relates to hydraulic engineering and can be used in the construction of berths, sluices, dams, dock structures, mooring bays, bridge supports; the construction of retaining walls; bank protection, water intake and drainage structures; treatment facilities, collectors, tunnels, underground structures, ring closed and open structures, fences; when arranging pits, slopes, foundations, trench walls.

Known sheet pile wall (patent RU 106364 U1, IPC E02D 5/00, publ. 2011.07.10.) Of steel tubular piles, including a set of piles, to each of which a pair of sheet pile locks is welded, and a set of alternating closing piles, to each of which a pair of sheet piling projections are welded, located in the inner cavities of the locks of adjacent piles. The tongue-and-groove locks and tongue-and-groove protrusions are made of rolled elements of shaped cross-section, equipped with a heel for welding, with each tongue-and-groove protrusion made with a ridge of a circular or oval cross-section, and each lock is made in the form of a cage with a mouth that repeats the shape of the ridge of the tongue and groove and encloses it with the possibility of partial relative rotation. The sheet pile wall according to the known solution is laborious to manufacture, requires the manufacture of additional connecting elements (connectors) welded to the outer surface of the pipes, and has a high cost of manufacture and installation.

Known sheet pile wall (https://www.escglobalgroup.com/esc-group-product-catalogues?lang=pt, ESC catalog, page 23), consisting of trough-shaped sheet piles with hook-shaped connectors at the end sections. The piles that make up the sheet pile wall are staggered in relation to each other. A sheet pile wall of this design does not have a high bearing capacity for the construction of hydraulic structures and is usually used to fence pits during the construction of foundations for buildings and equipment.

Known closest to the claimed (prototype) sheet pile wall (patent RU 151646 U1, IPC E 02D 29/02, publ. 2015.04.10.), Consisting of bearing sheet piles, having bearing piles from a profile, trough-shaped or flat sheet pile. Anchor piles in the form of an I-beam are welded to the outer parts of the flanges of the trough or flat sheet pile, and the trough-shaped or flat sheet pile at the ends contains locks, and the sheet pile wall is built in such a way that the position of each of the adjacent bearing piles with profiles having platforms at the ends relative to the other adjacent executed either towards, or in a staggered manner, or in parallel with the use of intermediate sheet piles between the bearing piles or without it.

The disadvantage of the known technical solution, like the previous ones, is the high labor intensity of manufacture due to the large number of welded seams, high metal consumption and the complexity of installation.

The objective of this technical solution is to reduce its metal consumption, reduce labor intensity and costs for manufacturing and installation, while increasing the bearing capacity of the wall.

The task is achieved by the fact that the sheet pile wall consists of U-shaped bearing sheet piles with locking elements at the ends, arranged in a checkerboard pattern and to the outer part of which anchor piles are attached. Each anchor pile is made in the form of two identical C-shaped or V-shaped profiles, connected to each other, for example, by means of welded seams, and together forming an H-shaped or O-shaped pile, while the profiles with their shelves adjoin the outer parts sheet piles and attached to them either fixedly by means of welded seams, or with the possibility of mutual longitudinal movement in guides welded to the outer parts of the sheet piles. In this case, anchor piles can be located both on one and on both sides of the sheet pile wall.

The invention is illustrated by drawings, which shows:

FIG. 1 - sheet pile wall with O-shaped anchor piles located on one side;

FIG. 2 - sheet pile wall with O-shaped anchor piles located on both sides;

FIG. 3 - sheet pile wall with H-shaped anchor piles located on one side;

FIG. 4 - sheet pile wall with H-shaped anchor piles located on both sides.

Sheet pile wall (Fig. 1-4) with height H1 consists of load-bearing sheet piles 1 U-shaped, installed with a pitch T with locking elements 2 at the ends, arranged in a checkerboard pattern. Anchor piles 4 are attached to the outer parts of the 3 sheet piles 1. In this case, each anchor pile 4 is made in the form of two identical C-shaped profiles 5 or V-shaped profiles 6, connected to each other, for example, using welds 7 or bolted joints 8 , and forming together the piles of the H-shaped section 9 (Fig. 3, 4) or the pile of the O-shaped section 10 (Fig. 1, 2), while the profiles 5 and 6 with their shelves 11, 12 adjoin the outer parts 3 of the sheet piles 1 and attached to them either fixedly by means of welding seams 11, or with the possibility of mutual longitudinal movement in guides 12 welded to the outer parts of the sheet piles. In this case, the anchor piles 4 can be located both on one and on both sides of the sheet pile wall.

Depending on the state and preparation of the site for the construction of hydraulic structures, different schemes for the execution and installation of sheet pile walls can be applied: with a preselected soil for the installation of a sheet pile wall, it is advisable to use a scheme of immersion of sheet piles with anchor piles welded to them, when installing a sheet pile wall without preliminary sampling of soil it is advisable to use separate immersion of sheet piles and anchor piles.

Below in tables 1-4 are calculated comparative data on the bearing capacity and metal consumption of sheet pile walls made of pipes of large diameter (table 1). The table shows the typical sizes of pipes used for the construction of sheet pile walls in hydraulic engineering. Table 2 shows the geometric parameters of sheet piles and anchor piles based on V-shaped profiles according to the claimed technical solution. Table 3 shows the design parameters of the sheet pile wall with the installation of anchor piles on one side of the wall. Table 4 shows the design parameters of the sheet pile wall with the installation of anchor piles on both sides of the wall. wall to weight per square meter of wall)

TABLE 1.

Pile step Pipe diameter Pipe wall thickness Pile weight Wall moment of inertia Moment of elastic wall Metal utilization rate mm mm mm Kg / m Cm4 / m Cm3 / m Cm3 / kg 1150.8 1066.8 15.9 431.9 629860 11810 27.3 1150.8 1066.8 19.1 513.9 749810 14060 27.4 1302.2 1219.2 15.5 479.9 814720 13360 27.8 1303.2 1219.2 19.1 585.1 995050 16320 27.9 1455.6 1371.6 19.1 655.9 1275120 18590 28.3 1455.8 1371.6 22.2 758.6 1472010 22460 29.6 1608.0 1524.0 22.2 842.0 1836760 24100 28.6 1760.4 1676.4 22.2 925.5 2242040 26750 28.9 1912.8 1828.8 25.4 1149.5 3059050 33450 29.1

TABLE 2.

Sheet pile width Tongue height Sheet pile thickness Sheet piling area ∑-pile width ∑-pile height ∑-pile thickness Area ∑ = piles mm mm mm Cm2 mm mm mm Cm2 600 (655) 250 (277.5) ten 119.8 200 700 ten 115.16 600 (655) 250 (277.5) ten 119.8 200 800 ten 125.16 750 (816) 300 (333) 12 176.1 250 900 12 171.9 750 (816) 300 (333) 12 176.1 250 1000 12 183.9

TABLE 3.

Pile step ∑-profile height Profile thickness Wall height Wall mass Wall moment of inertia Moment of elastic wall, minimum Metal utilization rate mm mm mm mm kg / m2 cm4 / m2 cm3 / m2 Cm3 / kg 1200 700 ten 1200 308.0 546250.0 8290.2 26.9 1200 800 ten 1300 320.5 674162.5 9390.8 29.3 1500 900 12 1500 364.3 1017185 12262.7 33,7 1500 1000 12 1600 376.8 1206976 13541.7 35.9

TABLE 4.

Pile step ∑-profile height Profile thickness Wall height Wall mass Wall moment of inertia Moment of elastic wall Metal utilization rate mm mm mm mm kg / m2 cm4 / m2 cm3 / m2 Cm3 / kg 1200 700 ten 1900 583, 5 1701146 17906.8 39.1 1200 800 ten 2100 616.9 2186649 20825.3 43.0 1500 900 12 2400 693.2 3200565 26671.3 49.0 1600 1000 12 2600 725.2 3909737 30074.9 52.8

On the basis of the above tables, it can be concluded that the sheet pile wall according to the declared technical solution, with comparable parameters in terms of bearing capacity, with a sheet pile wall made of large diameter pipes, has a significantly lower metal consumption. piles on one or both sides of the sheet pile wall.

The offered sheet pile wall has a high load capacity and low production cost in comparison with the known technical solutions, it allows the manufacture of sheet pile walls from ready-made bent profiles with a decrease in the length of the welded seams at the client when installing the sheet pile wall. The sheet pile wall according to the proposed technical solution has a lower metal consumption by 14-50% in comparison with the known ones at the same load capacity. At the same time, the client's costs for the purchase and installation of profiles for the construction of sheet piling are reduced. The analysis shows that the proposed sheet pile wall, made on the basis of ready-to-install bent sections, can be used for hydraulic structures with a high level of load.

Claims (3)

1. Sheet pile wall, consisting of U-shaped bearing sheet piles with locking elements at the ends, to the outer part of which anchor piles are attached, characterized in that each anchor pile is made in the form of two identical C-shaped or ∑-shaped profiles, connected with each other, for example, by welding or bolted joints and jointly forming an H-shaped or O-shaped pile, while the profiles with their flanges adjoin the outer parts of the sheet piles and are attached to them either motionlessly by means of welded seams, or with the possibility of mutual longitudinal movement in guides fixed on the outer sides of the sheet piles by means of welded seams. 2. Sheet pile wall according to claim 1, characterized in that the anchor piles are located on one side of the wall. 3. Sheet pile wall according to claim 1, characterized in that the anchor piles are located on both sides of the wall.

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