SU953089A1

SU953089A1 - Suction soil sampler

Info

Publication number: SU953089A1
Application number: SU813232441A
Authority: SU
Inventors: Ян Семенович Аврутин; Виктор Васильевич Давыдов; Виктор Евгеньевич Коваль
Priority date: 1981-01-04
Filing date: 1981-01-04
Publication date: 1982-08-23

Description

Изобретение относитс к буровой технике и предназначено дл отбора образцов грунта с ненарушенной структурой из буровых скважин, а также со дна водоема.The invention relates to a drilling technique and is intended for sampling soil with an undisturbed structure from boreholes, as well as from the bottom of a reservoir.

Известен грунтонос, представл ющий собой устройство вакуумного действи поршневого типа с выпускными клапанами, включающий корпус, башмак, приемную гильзу, клапан, головку скрышкой , шток с ползуном, поршень с каналами, ограничители хода, пружину С1..A primerton is known, which is a piston-type vacuum action device with exhaust valves, including a housing, a shoe, a receiving sleeve, a valve, a concealment head, a slide rod, a piston with channels, travel stops, a spring C1.

Недостатком указанного грунтоноса вл етс то, что он не обеспечивает получени Проб грунта с ненарушенной структурой в результате засорени клапана шламом и встречного движени поршн , так как в этих услови х проба грунта, поступак ца в приемный цилиндр, уплотн етс . Кроме того, устройство имеет сложную конструкцию.The disadvantage of this primer is that it does not provide for obtaining soil samples with undisturbed structure as a result of valve clogging with slurry and oncoming movement of the piston, since under these conditions the soil sample, entering the receiving cylinder, is compacted. In addition, the device has a complex structure.

Известна также конструкци вакуумного грунтоноса, включающего крышку, наружный корпус и приемную гильзу С21.Also known is the design of a vacuum submersible, including a cover, an outer casing and a receiving sleeve C21.

Однако данный грунтонос неработоспособен в услови х отбора проб из песчано-глинистых грунтов, залегающих ниже уровн грунтовых вод, так как клапан, которым снабжен грунтонос , предназначен дл пропуска воздуха и не приспособлен дл свободного пропуска шлама.However, this submersible is not operable under the conditions of sampling from sandy-clay soils that lie below the groundwater level, since the valve with which the submersible is supplied is designed to pass air and is not adapted to freely pass sludge.

Наличие поршн , полого штока и клапанов в значительной мере усложн ет его конструкцию, а также и эксплуатацию , вызыва после каждого подъема пробы грунта необходимость выполн ть прочистку клапана.The presence of a piston, a hollow stem, and valves greatly complicates its design as well as its operation, causing the need to clean the valve after each lifting of the soil sample.

Целью изобретени вл етс получение проб ненарушенной структуры песчано-глинистых грунтов, залегающих ниже уровн грунтовых вод, а также упрощение конструкции грун гоноса и удобство его эксплуатации.The aim of the invention is to obtain samples of the undisturbed structure of sandy-clay soils lying below the groundwater level, as well as to simplify the design of the soil and its ease of operation.

Указанна цель достигаетс тем, что в вакуумном грунтоносе, включающем крышку, наружный корпус и приемную гильзу, крышка и корпус выполнены с возможностью осевого перемещени относительно друг друга, снабжены уплотнени ми и имеют совмещающиес между собой окна одинакового геометрического размера.This goal is achieved by the fact that in a vacuum submersible that includes a lid, an outer casing and a receiving sleeve, the lid and casing are axially displaced relative to each other, provided with seals and have windows of the same geometric size that are compatible with each other.

Claims

FIG. 1 shows a soil feeder when pressing, a section; Fig. 2 primert with extraction, section. The vacuum submersible includes a composite lid 1, made of adapter 2 and head 3 screwed on it, outer case 4, inside which is installed a paper-waxed sleeve 5, screwed onto body 4 bk b, seals 7-10. Seals 7-9 are made in the form of glands, and in the case of a shedding 10, they are wedges. Krypika 1 is designed to move axially relative to the housing 4. The lid 1 and the housing 4 are provided with windows 11 and 12, respectively. Windows 11 and 12 are coaxially aligned, when the housing 4 is pushed all the way into the lid (Fig. 1) and intersected when the lid 1 extends relative to the housing 4 (Fig. 2). At the same time, the seals 9 ensure the tightness of the inner cavity of the gutter at the moment of closing the windows 11 and 12 ( Fig. 2). Manget 10 prevents the slurry from getting into the gap between the walls of the cover 1 of the housing 4. The shoe 6 is provided with a protrusion 13. Grunthos works as follows. In the initial position (Fig. 1), the gutter is lowered onto the face. At the same time, the soil cavity cavity fills with sludge, which freely passes through the combined windows 11 and 12. During the process of crushing the soil, the soil of the undisturbed structure enters the receiving sleeve 5, and the sludge is forced out through the combined windows 11 and 12 of the crank 1 and case 4. Sludge from the internal cavity is observed when the area of the shoe section is not larger in size than the sum of the areas combined by windows of the same geometrical dimensions f defined by the ratio. S 4 nS Q, where S is the area of the internal cross-section of the shoe ;. n is the number of combined windows Sg is the window area. After the receiving sleeve is filled with 5 soil, the submersible is lifted. First of all, the crutch 1 is involved in the movement, as a result of which it moves relative to the stationary outer casing. the overlapping of windows 11 and 12 of lid 1 and housing 4 seals the inner cavity of the submersible, resulting in the formation of a vacuum necessary to detach and hold the sample taken (Fig. 2). After removing the primer to the day surface, the boot b is unscrewed and the waxed sleeve 5 is removed with a sample of the soil of the undisturbed structure. Then the primer is flushed, a new paper-waxed sleeve 5 is installed, the lower finger of which is bent and fixed by screwing the shoe b on the body 4. The body 4 is reset to the initial position of the windows 11 and 12. crushing it, which prevents the soil sample from being compacted, is characterized by simplicity of design, since it consists of two main parts - a cover and a housing, as well as ease of maintenance and reliability. The constructive solution of the proposed soiling board does not allow clogging up the sludge of working parts of the soiltool during its crushing and extraction. In addition, washing (cleaning) the soilwatering platform does not require disassembling it and then assembling it, the operation of the soilwatering platform is reduced to screwing and screwing the shoe and installing the cartridge. The invention is a vacuum submersible, including a cover, an outer casing and a receiving sleeve, characterized in that in order to obtain samples of the undisturbed structure of sandy-clay soils lying below the groundwater level, simplify the design of the submersible and its ease of operation, the cover and the casing are installed the possibility of axial movement relative to each other, provided with seals and made with windows of the same geometrical size that are compatible with each other. Sources of information taken into account during the examination 1. USSR author's certificate No. 369215, cl. E 02 D 1/02, 197.1.

2. USSR author's certificate number 329281, cl. E 02 D 1/04, 1970 (prototype).

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