SU926155A1 - Soil anchor (modifications) - Google Patents

Description

(54) SOIL ANCHOR (ITS OPTIONS)

I

The invention relates to construction and can be used to fasten building structures in soils.

Known ground anchor, including a tubular rod and a massive tip 1.

The disadvantage of such a ground pit is a low carrying capacity in weak soils, since the working area of the core part of the anchor is small, and the volume of soil involved in the work is small.

The closest technical solution to the invention is a ground anchor comprising a hollow tubular body, the walls of which are made with a longitudinal weakening and the charge of an explosive placed in the body 21.

The disadvantage of such a ground anchor is its low carrying capacity, since the working area of radially deformed strips formed by longitudinal attenuation of the explosion is small and the soil leaks out between the strips when the anchor is pulled out and flows around them without creating additional resistance.

The purpose of the invention is to increase the carrying capacity of the anchor.

The goal is achieved by the fact that a ground anchor comprising a hollow tubular body, the walls of which are made with a longitudinal weakening, and a charge of explosive material placed in the body are equipped with cartridges filled with combustible material and fixed in the body with the possibility of their deviation from the body axis. ,

In addition, a ground anchor comprising a hollow tubular body, the walls of which are made with a longitudinal weakening, and an explosive charge placed in the body. It is equipped with a container filled with polymeric intumescent material and placed in the body. Figure 1 shows the proposed soil anchor, the first option, a general view, at the time of immersion; figure 2 - section aa in figure 1; on fig.Z - soil anchor, the first option, a general view, in the working position; in fig. - section bb on fig. 3 in figure 5. The soil anchor, the second option, a general view, at the time of immersion; figure 6 - section bb In Fig .5; on - soil-anchor, the second option,. General view, in the working position; on fig.Z - section GG 15

7.

The ground anchor consists of a tubular body 1 and an explosive charge 2 with a blasting cap 3. The tubular body in the lower part has a removable tip A. In the upper part of the body 1 there is a tapered hole 5 in which the rod or rope 6 is attached. End of the rope 6 unraveled on individual strands 7 with curved ends to the entire opening 5 is filled with metal, for example, babbit. The walls of the housing 1 are made with a longitudinal loosening 8, forming a series of ribbons 9- In addition, the walls can also have lateral loosening 10.

In the first embodiment, the case of the anchor 1 is provided with cartridges 11 filled with combustible material 12. The cartridges 11 are attached to the tip k using flexible couplings 13.

According to the second variant, the case of the anchor 1 is filled with a polymeric intumescent material W placed in the container 15. The ground anchor works as follows.

At the construction site, a ground anchor is attached to the KrtVi rod, the rope 6, or the pile, the tip 4 is unscrewed, and the body cavity of the housing 1 is packed with explosive 2, with a detonator cartridge 3.

According to the second variant, the cartridges 11 are placed in the case; which are filled with combustible material 12.

In the second embodiment, in the case T a container 15 is placed filled with a polymeric intumescent material k.

Then twist the tip onto the casing 1. 1i1i if necessary, weld it.

charges The burning of combustible material 12 leads to thermal burning of the soil. Subsequent sintering of the soil with an anchor creates a single monolith,

increasing the bearing capacity of the soil anchor.

In the second embodiment, when the explosive 2 explodes, the polymeric material 14 is pressed into the ground.

The high temperature, developing in the explosion zone, contributes to its swelling, filling the whole near anker space with it by increasing its volume by 3 times, and

The polymerization of material k that is being carried out promotes the formation of a monolith from a primer, a polymer material I of the anchor.

As a polymeric material, it can be used with unstretched glass fiber dampened with liquid glass.

Thermal roasting and sintering of the soil or pressing the expanded polymer material 14 into the soil leads to a significant increase in the volume of soil firmly attached to the anchor. Involvement in work against the forces of pressure and pulling out the created monolith significantly increases the bearing capacity of the soil anchor, since the monolith plays the role of a shoe or plate.

 The invention can be used in anchors of any type, including screw or fired, as well as a pile cap.

The use of the invention allows an increase in the carrying capacity of the anchors and thereby significantly reduces the metal consumption and stays. Immersion of the soil anchor into the soil to the required depth is performed by a casing pipe or pile. After a certain time, the blasting cap blasting agent 3 is activated. As a result of the explosion, the walls of the housing 1 are deformed and the formed individual belts 9 are pressed radially into the ground. In this case, in the first embodiment, the cartridges 11 with combustible material 12 simultaneously deviate from the vertical position and they are ignited. As a combustible material 12 can be used -powder bridge construction, where they are used. invention 1. Ground anchor, comprising a hollow tubular body, the walls of which are made with longitudinal delamination, and a charge of explosive placed in the body, due to the fact that, in order to increase its carrying capacity, the anchor is provided with cartridges , filled with combustible material and fixed in the housing with the possibility of their deviation from the axis of the corporation. 56 2. A ground anchor, comprising a hollow tubular body, the walls of which are made with a longitudinal weakening, and an explosive charge placed in a body, characterized in that, in order to increase its carrying capacity, the anchor is provided with a container filled with a polymeric swelling material and placed in the case. Sources of information) are taken into account in the examination 1. For the German Federal Republic ff U8it565, cl. E 02 D 5/80, 1975. 2. US Patent. f 3228153, cl. 52-156-, 1966.. Ka

//

eight

//

FIG. 2

0

II

figl

 Fig.b

FIG. 7

phage. eight

Claims (2)

Claim 1. A ground anchor, including a hollow tubular body, the walls of which are made with longitudinal OS -, labyration, and an explosive charge placed in the body, provided that in order to increase its carrying method; In particular, the anchor is equipped with cartridges filled with combustible material and fixed in the housing with the possibility of their deviation from the axis of the housing: sa. V 2. A ground anchor, including a hollow tubular body, the walls of which are longitudinally attenuated, and an explosive charge placed in the body, characterized in that, in order to increase its bearing capacity, the anchor is equipped with a tank filled with polymer intumescent material and placed in the body .