SU881196A1 - Soil-carrying device - Google Patents

Description

(54) GRUNTONOS

one

The invention relates to engineering and geological surveys for construction, in particular, to a technique for sampling of soils, and can be used in the construction and mining industries.

The closest in technical essence to the invention is the gutter, consisting of a body (sleeve) with a sharpened lower end (knife) and the four rings enclosed in it. Dartny compression device, split ring and K1 pshsi-adapter with a valve containing a ball, spring and pressure bolt C;

A disadvantage of the known construction is the violation of soil core structures when extracting the subsoil from the well due to its separation from the array and separating the hull rings when preparing them for testing. Grunthos is not recommended to use in weak water-saturated soils because of possible soil leakage from the subsoil.

The purpose of the invention is sampling, without disturbing the soil structure and increasing the informativity of the soil sample.

The goal is achieved by the fact that in the submersible containing the body

with a knife, ground rings enclosed in the housing, as well as an adapter cover with a valve, measuring rings, gaskets and flexible elements are additionally inserted into the body, and the gaskets are placed between the measuring and ground rings and made with annular slots, in which flexible elements are placed, and the lower flexible element is provided with a fabric closure.

The drawing shows gruntonos.

The grunthos consists of a thin-walled case 1 with working rings 2 of a compression device and rings 3 for measuring lateral pressure and pressure pressure inserted into it. Between the rings there are inserted for joining the gasket 4 with slits, in the slots of the gaskets are inserted loops-cutters 5 for

20 divisions of rings 2 and 3. In the upper part of the grouser there is a cover of adapter 6 with spring-loaded valves 7. With the help of an intermediate ring 8 screwed on the cutting knife 9, and

25, the thin-walled body 1 is provided with a rigid connection of the rings 2 and 3 and the gaskets 4. In the gap between the intermediate ring 8 and the knife-cutter 9 is hinged wire

30 cutter 10 with fabric closure 11 dl

separating the sample from the soil mass and holding it in the submersible.

Grunthos works as follows.

Screwed onto the rod, the grouser is lowered vertically to the bottom of the well, then pressed in until the body is filled with soil. At the same time, the sharpened knife 9 facilitates the indentation of the submersible into the array of soil. When filling the inner cavity of the groundwater valve, the valves 7 in the flange b are slightly opened and the air from under the cap is pressed out, which prevents the formation of a vacuum under the cap when the submersible is lifted out of the well, followed by moving the sample down. After crushing the soil clamp, a loop cutter 10 with a fabric shutter 11 is tightened, with which the selected sample is cut off from the soil mass and held in the soil clamp. The primer is then removed from the well and unscrewed from the rod. The open end of the grouser is waxed, the gutter is packed into polyethylene and transported with minimal dynamic impact to the test site. If the tests are carried out in the field laboratory, close to the point where the monolith is sampled, the unpacked soil is delivered to the laboratory where the knife 9 is removed, the housing 1, the intermediate ring 8 and the adapter adapter 6. The soil sample in rings 2 and 3 is installed on the glass and with power loop cutters 5 are divided into individual samples enclosed in rings.

The use of the ground plane allows to obtain samples of the soil for testing with minimal disruption of the structure, since the loopback cutter with fabric behind Yor ensures the separation of the soil sample from the array and its retention. in a submersible, and with the help of peeled cutters, the core is divided into samples in rings, which do not require further processing before being installed in the test instrument. This improves the accuracy of the results of subsequent testing of the properties of the extracted soil samples. When using the proposed device, the extracted soil sample in the ring does not require additional preparation for testing, which speeds up and reduces the cost of determining the physical and mechanical properties of the soil. The presence of rings in the soil carrier for determining lateral and pore pressure allows to increase the info1 {test activity. The presence of valves in the lid and the fabric closure between the intermediate ring and the knife allows for the extraction of weak water-assisted soils from the well.

Claims (1)

Invention Formula The grounthos, comprising a housing with a knife, soil rings enclosed in the housing, as well as a cover adapter with a valve, characterized in that, in order to take samples without disturbing the soil structure and increasing the informativity of the soil sample, measuring rings were added to the building and flexible elements, with gaskets placed between the measuring and ground rings and made with annular slits in which the flexible elements are placed, and the lower flexible element is provided with a fabric closure. Sources of information taken into account in the examination 1, Rebrik B.M. Drilling of wells in engineering and geological surveys x- M., 1973, p.228. 1-2 H- 5 -eleven