RU32137U1 - EXPLOSIVE PILED PILED BASE - Google Patents

Abstract

1. Pile foundation with explosive broadening, containing a columnar shaft, made by forming a well in the ground with its subsequent filling with hardening material, a sole-broadening located in the lower part of the shaft, characterized in that the shaft is made of composite from the upper and upper parts, and the shape the sole-broadening is formed by an explosion, rigidly fixed in the lower part of the well, an explosive charge, followed by a collapse of the camouflage volume of the near-cambulet part of the hardening material into it. 2. The pile foundation according to claim 1, characterized in that the columnar trunk is made with a reinforcing cage installed inside it. The pile foundation according to claim 1 or 2, characterized in that cast concrete is used as the hardening material.

Description

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PILED BASE WITH EXPLOSIVE EXPANSION.

The utility model relates to the field of construction, namely to pile foundations with a welded base and can be used in shallow foundations intended for the erection of buildings and structures, as well as bridges and special purpose structures such as towers, masts, retaining walls, etc. .P.

A well-known shallow foundation containing a columnar trunk, base broadening located in the lower part of the trunk (Japan Patent No. 7003071 B4, MKI: E O2 D 27/01, publ. 01/18/1995).

The reason that impedes the desired result is the need for preliminary excerpts of the foundation pit, the presence of numerous structural elements, which complicates and lengthens the process of erecting such foundations, and also leads to significant costs for their construction.

Of the known foundation devices closest to the claimed is a shallow foundation pile foundation.

MKI: EO2D 5 / 44.46 27/01

including a columnar trunk with an reinforcing cage installed inside it, made by forming a well in the ground and then filling it with hard concrete, a sub-broadening located in the lower part of the trunk (RF, Utility Model Certificate No. 11805, MKI: EO2 D 27/01, published on November 6, 1999).

The reason that impedes the achievement of the required technical result is the significant labor costs for the construction of this foundation, associated with the presence of a steel shell installed in the well, and laying soles that require mounting and, as a result, their sufficient cost.

The task to which the claimed technical solution is directed is to create a fast-built and inexpensive pile foundation of shallow laying.

To solve this problem, when implementing the foundation device, a technical result was obtained, consisting in the use of explosion energy for the formation of compression and its filling with a camouflage volume of concrete located in the barrel.

The essence of the proposed technical solution lies in the fact that the pile foundation with blasting expansion contains a columnar trunk made by forming a well in the ground with

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its subsequent filling with hardening material, the broadening sole located in the lower part of the trunk.

What is new in the foundation device is that the barrel is made of a composite of the prikamuletnoy and the upper parts, and the shape of the sole-broadening is formed by an explosion, rigidly fixed in the lower part of the well, the explosive charge, followed by the collapse of the camouflage volume of the prikamuletnoy part of the hardening material.

In addition, the columnar barrel can be made with a reinforcing cage installed inside it, and cast concrete can be used as a hardening material.

The device is shown in the drawings, where it is shown in: Figure 1 is a general view of the device in longitudinal section; Figure 2 is a top view of the device; Fig.Z - wiring diagram of the device.

The device of the pile foundation with explosive broadening contains a columnar barrel 1 located in the cavity of the borehole 2 formed in the soil 3, made of hardening material, for example, cast concrete, composed of two parts: prikamuletnoy 4 and upper 5, the sole-broadening 6, located in the lower part of the barrel 1, the shape of which is formed by an explosion in the lower part of the well 2, fixed in it, an explosive charge 7 with

electric detonators connected by electric drives 8 to an energy source 9, followed by a collapse in the broadening 6 of the camouflage volume 10 of the sub-camouflage part 4 of the concrete barrel, in an uncured state.

Depending on the requirements of the customer, the barrel can be made with a reinforcing cage 11 (Fig.Z) located inside it, with or without tension. In this case, the charge is attached to its lower part. If the reinforcing cage is not installed, the charge is held in the lower part of the well by means of a fastening element (not shown in the drawing).

Installation of the foundation device is as follows.

A drilling rig using a tubular rod (not shown in the drawing) drills the well 2 and removes soil from it, after which the reinforcing cage 11c is lowered to the bottom of the well, secured to it to prevent flooding, by an explosive charge 7 with electric drives 8 and connected to to the energy source 9, Then, for example, unhardened, cast consistency concrete is injected through the hose into the well 2, filling it to the height of the primed part 4 of the concrete, after which the explosive charge 7 is blown up, as a result of which, under the influence of the force of the explosion, local compaction of the soil occurs and the formation of camouflage (explosive) broadening 6, the shape of which is caused by

the charge energy and geological conditions, as well as the upward lifting of the camouflage volume 10 together with the near-camphlet part 4, which then collapses into the formed broadening cavity, filling it with the camouflage part. In the borehole in its lower part, there remains the remaining, minus camouflage volume 10, volume of the near-camphlet part 4, which did not fail in broadening. From the action of the shock wave upwards, a significant compaction of the camouflage volume occurs together with the prikamuletnoy part, which increases the bearing characteristics and soles-broadening and the remaining prikamufletnoy part 4 of the column. The presence in the composition of the column parts with a compacted material allows you to not use additional designs designed to provide the above seal and, therefore, the claimed product does not require additional cost costs, as well as labor.

Then an upper volume of 5 hardened is injected into the upper part of the well; its concrete to the level of the soil surface.

When implementing a utility model, the possibility of achieving the indicated technical result, which consists in reducing the cost and labor costs of erecting a shallow foundation pile foundation with explosive broadening, is confirmed by the use of known means and commercially available materials, including those presented at the level of functional generalization.

Claims (3)

1. Pile foundation with explosive broadening, containing a columnar shaft, made by forming a well in the ground with its subsequent filling with hardening material, a sole-broadening located in the lower part of the shaft, characterized in that the shaft is made of composite from the upper and upper parts, and the shape the sole-broadening is formed by an explosion, rigidly fixed in the lower part of the well, an explosive charge, followed by a collapse of the camouflage volume of the near-cambulet part of the hardening material into it. 2. The pile foundation according to claim 1, characterized in that the columnar trunk is made with a reinforcing cage installed inside it. 3. The pile foundation according to claim 1 or 2, characterized in that cast concrete is used as the hardening material.