RU2449086C2 - Sampling device - Google Patents

Abstract

FIELD: construction, road engineering.

SUBSTANCE: invention relates to construction and may be used to monitor and investigate a core sample from wells and structures. The sampling device comprises a sampler, where one end of a rope is fixed, and the other end is fixed on the sampler. At the same time a device of sampler retention is made of a torus, which is covered on top with an adhered industrial rubber fabric, which serves as a roof. The surface of the torus and roof forms a tight cavity, where vacuum is pulled as the torus is blown. Atmospheric pressure pushes the shell and the cover and presses it to road surface. When the sampler is pressed into the earth bed, it stops against the rope connected to the sampler retention device.

EFFECT: sampler retention on the road surface.

2 dwg

Description

The invention relates to the construction and is used in the control and study of core from wells and structures.

A known method and device for core sampling on loose and flowing soils, for example from the canvas of a road under construction. Also known are a method and apparatus for holding an indentation mechanism on a hard surface, for example on a road pavement. Typically, these operations are carried out by soil nipples pressed into the ground, or by drilling.

These methods and devices are described in the sources below.

Drilling tool for exploration wells: Reference book / N.I.Kornilov et al. Ed. Kornilova N.I. - M .: Nedra, 1990 .-- 395 p.

Exploration well drilling. Textbook for universities. / N.V. Soloviev, V.V. Krivosheev, V.I. Brylin, V.G. Khramenkov and others; Under the total. ed. N.V. Soloviev. - M .: Higher. school, 2007 .-- 904 p.

These methods and devices are not intended to take control samples from the subgrade and pavement of a newly constructed road, for example, to extract control samples. Therefore, such operations are performed only by excavating pavement and subgrade.

A known device for sampling, made of soil carrier, see patent RU 2114410 C1, G01N 1/08, 1/12, publ. 06/27/1998

The disadvantage of this device is that it does not have a device for holding the soil carrier at the time of its indentation.

The objective of the invention is the formation of a force holding the soil carrier on the pavement. The task is achieved in that the soil carrier is additionally equipped with a device for holding it.

The sampling device consists of a soil carrier, which is additionally equipped with a soil carrier holding device, on which one end of the cable is fixed, and the other end is fixed to the soil carrier, while the soil carrier holding device is made of a torus, which is overlapped on top by an adhesive rubber fabric.

The drawings show:

figure 1 - soil carrier with a retention mechanism;

figure 2 - retention mechanism.

The device depicted in figure 1, consists of a soil carrier 1 and a holding device 2, interconnected by a cable 3, covering the pulley 4.

The mechanism 2 shown in FIG. 2 is made of a torus 5, which is covered by a roof 6 connected hermetically to one outer side of the torus 5 (upper). The torus cavity 5 is in communication with the fluid supply and removal system 7. The surface 8 of the torus 5 and the roof 6 form a cavity 9. In the torus 5 and the roof 6, the valves 10 are installed.

The device shown in figures 1, 2, operates as follows.

System 7 injects a fluid agent into a torus 6, which swells, the cavity 9 expands, and a vacuum forms in it. Atmospheric pressure presses on the torus 1 and roof 6. There is a force of pressure of the soil carrier to the pavement. After pressing the soil pump through the valves 10 release the fluid agent from the torus 5, then the soil pump is removed.

Such a device can be used not only to hold the soil carrier, but also to compact the subgrade and soil.

The use of the invention allows to take cores in bulk and fluid soils. The method and device can be used to compact the subgrade and soil, as well as pavement due to atmospheric pressure.

Claims (1)

A sampling device consisting of a soil carrier, which is additionally equipped with a soil carrier holding device, on which one end of the cable is fixed, and the other end is attached to the soil carrier, while the soil carrier holding device is made of a torus, which is overlapped on top by an attached rubber fabric that serves as a roof , the surface of the torus and the roof forms a geometric cavity in which a vacuum is formed when the torus is inflated, atmospheric pressure presses on the shell and the roof and presses it against the pavement, when pushing the soil carrier into the subgrade, it abuts against a cable connected to the soil carrier holding device.

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