RU157792U1 - PILED-SCREW ANCHOR OF INCREASED HORIZONTAL STABILITY - Google Patents

Abstract

Pile-screw anchor of increased horizontal stability (SVAPGU), consisting of a screw pile with through holes in the aerial part of the pile shaft, screwed into the soil at an angle to the soil surface, characterized in that the pile by means of a turnbuckle is pivotally connected to a rectangular steel thrust plate lying on the soil in the pit at an angle to the surface of the site, while stiffeners are welded to the upper plane of the plate, and anti-shear stops are welded to the lower plane, while the traction (anchor) cable has etlyu with the thimble is connected to the upper clevis turnbuckle finger inserted into the lower opening of the earring lanyard.

Description

The utility model relates to the field of construction and can be used in the restoration and construction of bridges on military roads, in particular, for fixing a floating bridge on the transition axis or holding traction and brake winches when sliding the spans of road collapsible bridges [1. Screw piles in construction (Construction technology "dual purpose") / V.N. Zhelezkov, A.A. Ozornin // Directory "Construction machinery and equipment." 2007. No. 6].

A known design of a screw anchor with a massive reinforced concrete emphasis used in the energy industry for construction to hold the power line supports, preventing the inclination and pulling of the anchor under load [2. Penchuk V.A. “Screw piles and anchors for supports,” ed. Budivelnik, 1985]. It is a screw pile immersed in the ground, which, through an articulated support device, rests on a monolithic emphasis array located at an angle to the anchor pile itself.

The disadvantages of this design are:

considerable time for preparing the anchor for work under load due to the need for concrete to set a stop of sufficient strength;

the impossibility of reuse associated with the inappropriateness of dismantling a monolithic concrete support;

unrealizable fully bearing capacity of a screw pile on the ground.

An object of the invention is the creation of an inventory design of a pile-screw anchor with increased horizontal stability (SVAPGU).

The specified technical problem is solved due to the fact that the SWAPGU consists of a screw pile with through holes in the aboveground part of the pile shaft and screwed into the soil at an angle to the soil surface. It is distinguished by the fact that the pile, by means of a lanyard, is pivotally connected to a rectangular steel thrust plate lying on the ground in the pit at an angle to the surface of the site. Stiffening ribs are welded to the upper plane of the plate, and anti-shear stops are welded to the lower plane, while the traction (anchor) cable, which has a loop with a thimble at the end, is connected to the upper lanyard earring with a finger inserted into the lower hole of this lanyard earring.

The figure shows the construction of SWAPGU, where are indicated:

pos. 1 - inclined screw pile;

pos. 2 - lanyard;

pos. 3 - thrust plate;

pos. 4 - anti-shear stops;

pos. 5 - hinged cross plate;

pos. 6 - traction (anchor) cable;

pos. 7 - lower lanyard earring;

pos. 8 - upper lanyard earring;

pos. 9 - fingers.

Mounted and used the design of the anchor as follows. All elements of SVAPGU are made in advance and delivered to the site. Here, an UZS installation screwed a screw pile to the design elevation at an angle (α = 60-75 °) to the surface of the site. After this, the pit is dug out under the thrust plate 3 at a distance of 2.0-2.5 m from the pile 1. The thrust plate 3 is laid in the pit 3. Using a lanyard 2, through the cross 5 and the earrings 7 and 8, the plate 3 is connected to the pile so that the angle between the axes of pile 1 and turnbuckle 2 amounted to ≈90 °. In this case, rotating the lanyard 2, it is necessary to achieve complete immersion of the stops 4 in the soil of the pit. Then the traction (anchor) cable 6, which has an end with a thimble, is connected with a finger 9 to the earring 8 of the lanyard 2. After that, the cable 6 is tensioned by the winch on the pontoon of the floating bridge, thereby engaging the anchor in the work to absorb horizontal load.

Thus, the proposed design SVAPU provides a lower total consumption of materials for its device. Due to this, labor costs and time for its device are reduced. The presence of a screw pile, which can be screwed and unscrewed, allows you to use the anchor as an inventory design. The presence of a thrust plate increases the horizontal stability of the anchor when the horizontal load is perceived through the traction (anchor) cable.

List of used literature:

1. Screw piles in construction (Construction technology "dual purpose") / V.N. Zhelezkov, A.A. Ozornin // Directory "Construction machinery and equipment." 2007. No. 6. from. 76-79.

2. Penchuk V.A. “Screw piles and anchors for supports,” ed. Budivelnik, 1985

Claims (1)

Pile-screw anchor of increased horizontal stability (SVAPGU), consisting of a screw pile with through holes in the aerial part of the pile shaft, screwed into the soil at an angle to the soil surface, characterized in that the pile by means of a turnbuckle is pivotally connected to a rectangular steel thrust plate lying on the soil in the pit at an angle to the surface of the site, while stiffeners are welded to the upper plane of the plate, and anti-shear stops are welded to the lower plane, while the traction (anchor) cable has etlyu with the thimble is connected to the upper clevis turnbuckle finger inserted into the lower opening of the earring lanyard.

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