SU877391A2 - Device for flowing ground sampling - Google Patents

Description

(54G) DEVICE FOR THE SELECTION OF SAMPLES OF FLOWING GROUNDS

I

The invention relates to soil research, in particular to devices for soil sampling.

According to the main author. St. No. -767608, a device for sampling flowable soils is known. It consists of a body rigidly connected to it with the help of ground receiving screws, a glass with slots for screws and grooves for clamps made in the form of conic sectors with fingers, a brush with a tip, with the inner side of which is made a groove for clamps and a segment shutter with clamps jlj.

A disadvantage of the known device is the low quality of the soil samples to be taken.

Purpose of Invention Quality Improvement

soil sampling.

This goal is achieved by the fact that the device for sampling flowing soils is provided with an upper one with a washer and lower latches made in the form of conical sectors with milli passed through HiTOK. Parts of which are placed in the slots of the ground () P |) III) the sleeve and the glass, and the tongues are rigidly connected to the device body.

FIG. I shows the proposed device, a general view of the selection process; in fig. 2, 3 and 4 - the same, after selection; in fig. 5 is a section A. A. in FIG. one; in fig. 6 -

 section bb in fig. one; in fig. 7 is a section bb of FIG. one; in fig. 8 is a view of FIG. four.

A device for sampling flowable soils comprises a housing I, a ground receiving sleeve 2 and a cup 3 ,. connected with

10 shtanga 4, at the end of which the sharnirio are fixed segments 5 with a notched surface. At the bottom of the soil receiving sleeve 2 fixed two clamps 6 and 7, made in vndecnyh sectors with fingers,

5 through the slots passing through between each other in the soil receiving sleeve 2 and glass 3. Between the end of the soil receiving sleeve 2 and the bottom of the glass 3 washer 8 was installed, rigidly connected to housing 1 with screws 9, passage 1%) and through the slits in

20 cups 3. One set of retainers 6, 7 and 10, U, P is ngarnini interconnected, and between the second there are compressed springs 12 and 13. In the submersible sleeve 2

a piston rod I is inserted into the holes in the cup 3 and the rod 4. Inside the piston 14 and in the Toptte group tube 2, grooves are made, which are mated respectively with the conical sectors of the retainers b, 7 and 10, 11. For fixing the rod with the piston 14 in the extreme extended position (Fig. 1) and the extreme retracted (Fig. 4) position, two grooves are made in it, which include a check 15, one end of which is fixed to the rod 4, and the second is spring loaded 16 and connected to the cable 17, passage -shchim inside the rod 4.

Sampling of flowing soils is carried out as follows.

Before sampling, the piston with the rod 14 is fixed by the check 15 in the extreme extended position (Fig. 1), with the latches 6, 7 and 10; 11 entering into the slots in the glass 3 and rigidly fixing between the glass 3, the housing 1 and the ground receiver 2. The device is inserted into the test fluid mass through the borehole or is crushed into the mass with the help of rod 4 at the required depth. At the same time, the piston rod with the piston 14 prevents the ingress of 2 soil particles inside the soil receiving sleeve, which are outside the investigated volume.

Then, using the cable 17, the check 15 is taken out of engagement with the piston rod 14. With the device being pushed further into the soil volume under investigation by the pressure of the soil, the piston with the rod 14 moves inside the thin-walled soil-receiving sleeve 2 (Fig. 2), is pressed into the soil and, until the conical sectors of clamps 6 and 7 that are mated with it come out of the slots of the glass 3, disconnecting it from the soil receiving sleeve 2. Since the filling of the soil receiving sleeve 2 to & that time is complete, it remains stationary, and the housing 1 with the glass 3 pro olzhaet be embedded into the ground (FIG. 3). This happens as long as the tapered sectors

10 and II do not fit into the groove associated with them in the end face of the soil receiving sleeve 2. In this case, the fingers of the retainers 10 and 11 come out of the slots of the glass 3, disconnecting it from the washer 8 and the body 1. After further pushing the device into the ground glass 3. moves relative to the ground receiving sleeve 2 and the housing 1. As a result, the segments 5 mounted on the glass with a spherical surface, the passage between the guides of the housing 1 and the receiving receiving sleeve 2, cut off the soil sample, closing the internal cavity of the ground receiving sleeve 2. The piston with the rod 14, having reached its extreme retracted position, is fixed by a check 15, which, under the action of the spring 16, enters a groove on the rod 14 (Fig. 4). Thereafter, the device with the soil sample is removed from the soil massif and the sample is analyzed.

Subsequent samples are taken similarly.

Thus, the proposed device allows improving the quality of sampled fluid soils.

Claims (1)

Invention Formula Device for sampling flowing soils according to ed. St. No. 767608, characterized in that, in order to improve the quality of samples taken, it is provided with an upper one with a washer and lower latches made in the form of conical sectors with fingers passed through a rod, the fingers of which are placed in the slots of the ground receiving sleeve and glass, and the washers are rigid associated with the device case. Sources of information taken into account in the examination I. USSR author's certificate 40 No. 767608, cl. G 01 N 1/02, 1978. x y k ::: xg  ; L 1 y. -X h X1 1 h k -h X IT-V G | RF h V y - X / ANX / AV 8 63 1 17h 109  4 - ;. N / . W. p / -y -l- - t-- -p ----- 7 - lx / x (rig. 3 (rig. i 351, 6-6 Cpaz.5 Sree. 7 (Rig.6 V id G (Puz.8