SU1411374A1 - Anchorage foundation - Google Patents

Abstract

The invention relates to construction, in particular to an anchor foundation, and allows for an increase in its carrying capacity. The anchor foundation consists of two longitudinal blocks 1 placed in a squall not moved apart by means of a spacer. The outer galley of each longitudinal block is made with longitudinal wedge-shaped grooves for the entire width of the block, 5 Il.

Description

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The invention relates to the construction and relates to the construction of anchor foundations for power transmission towers and other structures that accept alternating loads. -

The purpose of the invention is to increase the bearing capacity of the foundation.

FIG. 1 shows an anchor foundation when it is immersed in the well; a cross-section; in FIG. 2 - the same before the separation of the blocks; in fig. 3 shows section A-A in FIG. 2 in FIG. 4 - anchor foundation after separation of the blocks in FIG. 5 is a section BB in FIG. four.

The anchor foundation consists of two versatile, longitudinal blocks 1, which are triangular in plan, and the KOTopbix jointly forms a versatile hexagon with a wedge 2 embedded in its lower cavity, the upper platform of which has a guide ring 3. The outer attacking faces of each block have wedge-shaped grooves 4, reaching to its spacing 5. Anchor bolts 6 are mounted on the upper end of the blocks, to which power transmission towers or other equipment experiencing alternating loads are attached.

Longitudinal blocks are transported in a harness, fastened by one or several wire rings 7. When installing the foundation, lines 8 are used, which connect the lugs 9 to the vibratory pile driver 10, which bears a rigidly connected hammer 11 with the limited ring 12.

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the vibro immersion mechanism 10, rotated around the articulated suspension by 90 ° so that the hammer 11 enters the central opening between blocks 1 until it stops with the wedge 2 by means of sling 8 and eyelets 9, the blocks are connected to the eyes of the submersible 10 and the winch of the self-propelled pile driver, are lifted, It is brought to an already completed excavation and in a precisely oriented position, installed in the excavation. Due to the versatility of the hexagon base, the latter is visually easily oriented in the pit in the right direction. The logger transmitted into the work transmits the disturbing force through the hammer 11 to the wedge 2 and spreads the blocks 1.

An indicator of completion is a ring 12, which has reached the upper end of the foundation.

The presence of wedge-shaped grooves along the length of the attackers: the edges ensure the penetration of the lower part of the blocks into the ground due to the fact that all the force transmitted by the wedge is applied through the embedded elements 13 directly to the lower part of the block. In this case, the middle part of the blocks will come into contact with the ground only after the lower part has been inserted into the ground to the design value at which a given resistance to pull-out is guaranteed. As for the introduction of the headband 5 into the soil, a weak surface layer of the soil will not provide significant resistance and will not hinder the introduction of the lower part of the blocks. In the proposed

Lower inner surface of the foundation ensures reliability

pore blocks, interacting with the wedge 2, are provided with embedded elements 13, and the top resistant planes with bevels 14, with the help of which the design distance 45 between the anchor bolts 6 is provided.

I arrange the foundation as follows.

The foundation is delivered to the installation site in assembled form, both of its blocks 50 and 1 with wedges 2 are fastened with wire rings 7 and laid in a horizontal position. A self-propelled driver with lowered

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the vibro immersion mechanism 10, rotated around the articulated suspension by 90 ° so that the hammer 11 enters the central opening between blocks 1 until it stops with the wedge 2 by means of sling 8 and eyelets 9, the blocks are connected to the eyes of the submersible 10 and the winch of the self-propelled pile driver, are lifted, It is brought to an already completed excavation and in a precisely oriented position, installed in the excavation. Due to the versatility of the hexagon base, the latter is visually easily oriented in the pit in the right direction. The logger transmitted into the work transmits the disturbing force through the hammer 11 to the wedge 2 and spreads the blocks 1.

An indicator of completion is a ring 12, which has reached the upper end of the foundation.

The presence of wedge-shaped grooves along the length of the attackers: the edges ensure the penetration of the lower part of the blocks into the ground due to the fact that all the force transmitted by the wedge is applied through the embedded elements 13 directly to the lower part of the block. In this case, the middle part of the blocks will come into contact with the ground only after the lower part has been inserted into the ground to the design value at which a given resistance to pull-out is guaranteed. As for the introduction of the headband 5 into the soil, a weak surface layer of the soil will not provide significant resistance and will not hinder the introduction of the lower part of the blocks. In the proposed

its performance and mechanization of the installation process.

Claims (1)

Invention Formula An anchor foundation including longitudinal blocks placed in the well and an expansion device for their extension, characterized in that, in order to increase the bearing capacity of the foundation, the outer edges of each block in the direction of expansion are made with a longitudinal wedge-shaped notch across its entire width "Rtsg. / (rig. 3 U &.