SU807118A1 - Device for sampling soil monolith - Google Patents

Description

(54) DEVICE FOR SELECTION OF GROUND MONOLITH

The invention relates to soil science, namely to soil mechanics, and can be used to study the physicomechanical properties of soils and soils.

A device for sampling a soil containing a sampler with a serrated cutting edge is known.

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Its disadvantage is that it is unsuitable for taking a monolith from. a loose marsh bog in the horizontal direction,

Closest to the proposed technical essence and the achieved result is a device for sampling a soil monolith, including a soil collecting chamber with a toothed cutting edge and a power tool, the chamber being box-shaped 2.

However, with this device, the cutting of the soil monolith is carried out by pressing in a chamber with a pointed edge, i.e. with the application of force to the soil skeleton around the perimeter of the cutting edge of the camera. This leads to disruption of the soil structure in the selected monolith, if the soil skeleton is easily deformable, such as

in loose sphagnum tow and low-grade peat.

The purpose of the present invention is to expand the range of sampling of the soil of the natural state.

The goal is achieved by the fact that in the known device, which includes a soil-collecting chamber with a dentate cutting edge and a power

0 fixture, the soil collecting chamber is made in the form of a shovel and is equipped with a movable band saw, which is parallel to its toothed cutting edge and connected to the latter with the help of a clamping bar.

In Fig., 1 shows the proposed device in the working position, side view; in fig. 2 - the same, end view of the cutting edge of the lug;

0 in FIG. 3 - cutting edge of the soil pickup, type of sbrk.

The device consists of a soil intake, made in the form of a scoop 1 with parallel side walls j

5 transitions to the bottom with roundings, interacting with screw jack 2. At the end of the side walls and the bottom of the scoop two mutually paraplets are attached and adjacent to each other are the toothed cutting edge 3

0

And the movable band saw 4, which is installed only for the period of cutting out the monolith and the figure presser bar 5 held in the working position. On the movable saw 4 there are marks B attached to the slot of the bar 5 and intended to fix the saw 4. At the ends of the movable saw there are two handles 7, designed for manual drive of the saw. Removable marks 8 are designed to limit the movable saw 4.

Both saws have one-sided sharpening teeth.

The device works as follows.

A scoop 1 with a cutting device prepared for work is lowered horizontally into the ground onto wooden rollers laid on the beds. with the rear wall of the scoop and the opposite wall, we install the screw jack 2. To bring the cutting device into operation, saw 4 is given a reciprocating motion by means of the muscular force applied to the handles 7. At the same time, the scoop 1 is fed forward with the help of the jack 2. During the operation of the device assemblies, the fibers of the porous material are cut, which fall on two closely adjacent rows of sharply sharpened teeth of the cutting edge 3 and the movable saw 4.

The placement of the cutting device at the end of the scoop provides cutting. monolith is strictly in shape and size of the cross section of the scoop.

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The proposed device can be used independently for the selection of monoliths from an easily deformable medium, for example, from the swamps layer of the swamps, and as one of the nodes of a more complex device that enables the selection of the monolith in studying material properties and modeling various processes in this material, for example filtration, water loss, etc.

Claims (2)

1. Agrophysical methods of soil investigation. Ed. S.I. Dolgova, M., Science, 1966, p. 228. 2. USSR author's certificate number 606923, cl. G 01 N 1/02, 1976, Jlyil- .. VXWXvX