SU1488715A1 - Device for sampling soil - Google Patents

Description

The invention relates to the field of construction and mining, and can be used in engineering and geological surveys preferential in weak water-saturated soils.

A device for sampling soil is known, consisting of a body (sleeve) with a sharpened lower end (knife) and four rings of a standard compressor device enclosed in it, a split ring, and an adapter cover with a valve containing a ball, a spring, and a pressure bolt [ί].

The disadvantage of the design is. violation of the structure of the soil when extracting the soil from the well due to its separation from the array and the separation of the hull rings during preparation

soil samples placed in a housing, characterized in that, in order to automate the process and increase the representativeness of the sample, it is equipped with a disc with vertical stop-guide rods, spring-loaded rods and hinges, the valve is made in the form of moving rigid sectors with holes, the housing is made with vertical channels, and a pointed tip - with slits in the form of sectors, while the disk is installed under the housing cover, rods and spring-loaded rods are placed in the vertical channels of the housing, and the movable rigid sectors are sharpened in the housing and placed in the slots of the pointed tip.

Tovke them to the test. Grunthos is not recommended for use in weak water-bearing soils due to the possible leakage of soil from the gonososa.

The closest to the known is a device for soil sampling, · having a body with a lid and a pointed tip, ground rings with measuring ring sensors and a shutter for fixing the soil sample, placed in the body [2].

The disadvantages of the known devices are the inability to control the presence of soil samples in the ring and the impossibility of completely closing the bottom of the housing. The implementation of the shutter from the elastic shell does not allow to completely close the bottom of the housing.

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The purpose of the invention is to automate the process and increase the representativeness of the sample.

This goal is achieved by the fact that a device for sampling soil, including a housing with a lid and a pointed tip, ground rings with measuring ring sensors and a bolt for fixing the soil sample, placed in the housing, is equipped with a disk with vertical stop-guide rods, spring-loaded rods and hinges, the shutter is made in the form of movable 15

rigid sectors with holes, the body is made with vertical channels, and the pointed tip has slots in the form of sectors, with: the disk is installed under the body cover, 20 rods and spring-loaded rods are placed in the vertical channels of the body, and the moving rigid sectors are hinged in the body and placed in the slots of the sharpened tip with the possibility of forming a ·: solid bottom in the lower part of the body after it is filled with soil.

FIG. 1. shows a diagram of the device before it is immersed in the ground; »30 in FIG. 2 - the same, before lifting the device from the array of soil; Fig, 3 is a diagram of the tip and moving sectors, bottom view; Fig.4 section aa on fig.Z; in fig. 5 - section 35 bb on fig.Z; in fig. 6 - section bb In figure 1; in fig. 7 - section GG in figure 1; on Fig. - section dD on: figure 1. .

The soil sampling device has a body 1 with a lid 2 and a pointed tip 3, inside of which are placed ground rings 4 with ring sensors 5, a disk 6, with vertical stop-guide rods 7, which are installed in the vertical channels 8 of the body '1.

In the channels 9 of the housing 1, springs 10 are installed with rods 11, which with their ends rest on movable rigid sectors 12 connected by means of hinges 13 to the housing 1 *

To ensure the immobility of the soil rings 4 in the housing 1 is installed ring 14 with thread. Movable 55

sectors 12 have openings 15 for fixing them in a vertical position by means of rods 7. The ground rings are filled with soil 16. '

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The main purpose of the disk 6 is to fix all rigid sectors 12 in a vertical position in the slots of the tip 3 by means of stop-guide rods 7 extending from it in the process of immersing the device into an array and filling it with soil, ensuring simultaneous simultaneous extraction of the rods 7 from the holes 15, release of sectors 1 2 from rods 7 · at the moment of complete filling of the device with soil 1 6 and automatic closing of the bottom of the case, and using the potential energy of the springs 30 provided in the device case and, and the reaction of the soil itself to the external inclined surfaces of the sectors 12, the release of which from the rods 7 allows automatic closure of the bottom * of the device.

.. The device works as follows.

The device by means of known installations (not shown) in assembled form (FIG. 1) is immersed in an array of soil and ground rings 4 are filled. ground 16. With further immersion of the device into the ground 16 disc 6 is supported and lifts it. Together with the disk 6, the rods 7 ascend along a vertical channel 8, the ends of which exit from the holes 15 of the moving rigid sectors 12.

In the initial position, the rods 11 pressure on the heads of the moving rigid sectors 12. At the same time on the external inclined surface of the sectors 12 presses the array of soil. Sector 12 under the influence of rods 1 G and the array of soil moves into the bottom of the body and close it. The distance between the lid 2 and the disk 6 is calculated in such a way that the soil pressed in by the sectors 12 is completely accommodated in the casing.

When sectors 12 move to a horizontal position, the rods ι 11 under the influence of springs 10 descend and lock the sectors in a horizontal position.

The disk 6 and the rods 11 are equipped with sensors (not shown), which give a signal about their movement and the presence of the sectors 12 in the horizontal position.

After filling the device breakdown

ground and closing the bottom of the hull device5

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The property is lifted to the surface, the cover 2 is removed from the housing 1, then the disk 6 with the rods 7, then the soil is taken to the level of the ring 14. This $ soil is sent to the laboratories for research. Soil rings 4 are released from housing 1 with soil for compression tests, both directly in the field and in ιθ stationary laboratories. In the proposed device, the mobile sectors 12 and the tip 3 are equipped with sensors (not shown) for determining the resistance of the soil. 15

The technical advantage of the device is that due to the presence of a spring-loaded rod of moving sectors and a disk with stop rods, it is possible to ensure reliable filling of soil rings with soil, closing the bottom of the housing, fully preserving the selected soils when removing the device from the array; soil, in the proposed device

without additional external energy inputs and mechanisms, it is possible to securely close the bottom of the hull in time when the soil rings are filled with soil, using the spring force and natural resistance of the array of soil acting on the external inclined surfaces of the sectors. It is known that in engineering and geological surveys to reduce the labor intensity of work, both accurate knowledge of finding the height of the soil extraction and full filling of the submersible chamber with soil and its preservation when lifting the device from the soil mass is of great importance. The proposed device fully meets these requirements.

The technical solution allows in comparison with the known to reduce the complexity of work by 15-20%, while ensuring the high quality of the sampled soil in the soil rings.

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Claims (1)

DEVICE FOR SELECTION OF SAMPLES OF SOIL,. including a housing with a lid and, with a pointed tip, ground rings with measuring ring sensors and a lock for fixing