SU863852A1

SU863852A1 - Device for taking soil samples from borehole walls

Info

Publication number: SU863852A1
Application number: SU792815255A
Authority: SU
Inventors: Владимир Дмитриевич Недрышкин
Original assignee: За витель .t54) УСТРОЙСТВО ДЛЯ ОТБОРА ПРОБ ГРУНТА В. Д. Н едрьшки н ИЗ СТЕНОК СКВАЖИНЫ
Priority date: 1979-08-27
Filing date: 1979-08-27
Publication date: 1981-09-15

Description

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Изобр етение относитс к бурению, а именно к устройствам дл отбора проб при геологических изыскани х дорог, водных переправ, jmmt эйектропередач , объектов промышленного и гражданского проектировани .The invention relates to drilling, in particular, to devices for sampling in geological surveys of roads, water crossings, jmmt eject transmissions, industrial and civil engineering objects.

Известно устройство дл отбора проб грунта из стенок скважины при шнековом бурении, включающее шнековую колонну и пробоприемник в виде двух шарнирных крышек, закрепленных на лопаст х шнека l .A device for sampling soil from the borehole walls during auger drilling is known, which includes an auger column and a sample receiver in the form of two hinged caps attached to the blade x of the auger l.

Недостатком данного устройства вл етс малый объем отбираемой пробы.The disadvantage of this device is a small sample volume.

Известно также устройство дл отбора проб грунта из стенок скважиНЫ , включающее полую шнековую колонну и пробоприемник, расположенный в чинековой колонне и перекрытый шарнирно закрепленной крьпнкой 2.It is also known a device for sampling soil from the walls of a well, comprising a hollow auger column and a sample receiver, located in a chine column and covered with a hinged arm 2.

Недостатком данного устройства вл етс то, что при подъеме устройства не исключена возможность проворота его против часовой стрелки. Б результате может самопроизвольно раскрытьс пробоприем шк и высыпатьс часть пробы. Все это снижает надежность работы устройства.The disadvantage of this device is that when lifting the device it is not possible to turn it counterclockwise. As a result, the sample can be spontaneously opened and the part of the sample is poured out. All this reduces the reliability of the device.

Целью изобретени вл етс повышение надежности работы устройства.The aim of the invention is to improve the reliability of the device.

Указанна цель достигаетс тем, что пробоприемник выполнен в виде полуцилиндра с режущей кромкой, а This goal is achieved by the fact that the sample receiver is made in the form of a half cylinder with a cutting edge, and

10 крьшгка -в виде двуплечего рычага, причем шарнир крышки расположен по оси полуцилиндра.10 bolt -in the form of two shoulders of the lever, with the hinge of the cover is located along the axis of the half-cylinder.

На фиг.1 схематически изображено предлагаемое устройство, общий вид; In Fig.1 schematically shows the proposed device, a General view;

(S на фиг.2 - разрез А-А на фигу.(S in FIG. 2 - section A-A in FIG.

Claims

The device has a semi-cylindrical receiver 1 with a cutting edge 2 for cutting the soil from the borehole walls, bounded by two planes: a plane 3, which is limited to part 4 for fixing the rod, and a plane 5, which is the tail part of the screw 6; Planes 3 and 5 have 3 sockets 7, which are insulated by caps 9, 10 of cover 11. One half of the collar is located in the received receiver I, having a free stroke, and the other, with a cut 12, having a length greater than the duck radius of the receiver 1, serves as an opening point krp ki 11 receivers 1 d l take the soil and close it when transporting the soil. The connection between the receiver .1 and the planes 3 and 5 is performed on electric welding with the preliminary laying of the pins 9, 10 and the cable 11 in the sockets 7.8. The device works as follows. A rotational movement is transmitted to the device through a rod fixed to the shaft 4, which is entrained by the screw 6 into the ground. The rotation is clockwise. At the time of immersing the device, the cover 11 closes the cavity of the receiver 1 and holds it in this state. through the efforts transmitted to the ledge 12krish1ki 11 through the ground. When the desired depth is reached, the direction of rotation of the device changes. The edge 2 of the receiver 1 cuts off the ground, and at this time, the hook 11 begins to open due to the engagement of the projecting part 12 with the ground and the pressure of the cut soil to the inside of the crack. Cut off the soil enters the receiver 1, the cover 11 opens the cavity of the receiver and simultaneously brings the second part of the clamp 11 to the closing of the cavity of the receiver 1. . For 0.5 turns, the device produces a soil intake and closure of the key. The soil sample is removed from the device receiver by turning the cap And to its original position. The ability to immerse the device in the ground and to extract it with a sample without considerable physical effort in any soil allows the device to be used for any rock exploration. Tests of the proposed device showed reliability in the work of sampling soil and reducing labor costs by 2-3 times. Claims A device for sampling soil from the borehole walls, including an auger column and a sampling receiver with a hinged lid, characterized in that, in order to increase reliability, the sampling receiver is made in the form of a half-cylinder with a cutting edge, and the crush is in the form of a double arm. Krsh) ki is located along the axis of the half-cylinder. Sources of information accepted during examination at examination 1. USSR author's certificate for application No. 1996809/03, cl. E 21 B 49/06, 1974.

2. USSR author's certificate in application number 2528806/03, cl. E 21 V 49/06, 1977 (prototype Ji

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