KR20030005040A - Sampler for weak layer - Google Patents

Sampler for weak layer Download PDF

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Publication number
KR20030005040A
KR20030005040A KR1020020038831A KR20020038831A KR20030005040A KR 20030005040 A KR20030005040 A KR 20030005040A KR 1020020038831 A KR1020020038831 A KR 1020020038831A KR 20020038831 A KR20020038831 A KR 20020038831A KR 20030005040 A KR20030005040 A KR 20030005040A
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KR
South Korea
Prior art keywords
inner tube
tube
collecting
sample
collection
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KR1020020038831A
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Korean (ko)
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KR100492191B1 (en
Inventor
박운철
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주식회사 한국건설관리공사
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Priority to KR10-2002-0038831A priority Critical patent/KR100492191B1/en
Publication of KR20030005040A publication Critical patent/KR20030005040A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/04—Sampling of soil
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
    • G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1031—Sampling from special places

Abstract

PURPOSE: A sampler for weak foundation is provided to obtain sample in a convenient manner without performing a boring work in the weak foundation. CONSTITUTION: A sampler for weak foundation, comprises a cylindrical outer tube(10) having a top where an opening(11) is formed and a bottom formed into a cone shape, wherein the outer tube has a plurality of outer tube rods(12) connected to the outer surface of the outer tube; a container(20) accommodated into the outer tube in such a manner that the container is removable through the opening of the outer tube, wherein the container has an open top for receiving and storing a specimen; and a cylindrical inner tube(30) accommodated into the outer tube in such a manner that the inner tube is removable through the opening of the outer tube, wherein the inner tube has a plurality of pressure control holes(31) formed in a circumferential direction along the outer periphery of the inner tube, and a plurality of inner tube rods(32) connected to the top of the inner tube.

Description

연약지반 시료채취기{ Sampler for weak layer }Soft ground sampler {Sampler for weak layer}

본 발명은 시료를 채취하는 기구에 관한 것으로, 특히 준설토와 같은 연약지반의 시료를 수작업으로 채취하는 연약지반 시료채취기에 관한 것이다.The present invention relates to a mechanism for collecting a sample, and more particularly to a soft ground sampler for manually collecting a sample of the soft ground, such as dredged soil.

일반적으로, 기초지반에 대한 지질조사는 기초공사의 시공에 필요한 자료를 얻기 위해 반드시 해야하는 것으로, 지질조사는 통상 보오링 작업을 통해 지층의시료를 채취하여 개시되는데 지반은 단단한 경암부터 지지력이 극히 작은 연약지반까지 다양하게 분포되어 지반 상태에 맞는 적당한 장비를 사용해야 한다.In general, geological surveys of foundation soils are essential to obtain the data necessary for the construction of foundations. Geological surveys are usually initiated by boring to collect samples of strata. Due to the wide distribution of the soft ground, suitable equipment suitable for the ground condition should be used.

특히, 현장의 지반강도 증가 확인 조사법은 시추보링 + 표준관입시험 + 비교란 시료채취 + 실내시험의 과정으로 구성되어 있는데, 보오링 작업은 지중에 구멍을 뚫어서 지층구조를 조사하고 지하수위를 관측하며 불교란시료를 채취하고 보오링공 밑에서 표준관입시험과 같은 원위치시험을 하기도 한다.In particular, the method of confirming the increase of ground strength in the field consists of drilling boring + standard penetration test + comparison column sampling + indoor test. The boring work involves drilling holes in the ground to investigate the strata structure and observing the groundwater level. Buddhist eggs may be sampled and subjected to in situ tests, such as standard penetration tests, under boring balls.

그러나, 표층이 준설토나 점토층과 같은 연약지반에는 보오링 장비를 설치할 수 없어 표준관입시험에 의해서 확인할 수 없는 문제점이 있었다.However, in the soft ground such as dredged soil or clay layer, the boring equipment can not be installed, there was a problem that can not be confirmed by the standard penetration test.

한편, 보오링 구멍에 시료채취기를 밀어 넣어 시료를 채취할 때에도 잉여토의 혼입이나 시료기 내벽의 마찰 등에 의해 시료가 교란되는 문제점이 있었다.On the other hand, even when the sample is pushed into the boring hole to collect the sample, there is a problem that the sample is disturbed due to mixing of excess soil or friction of the inner wall of the sampler.

이에 본 발명은 상기한 바의 제반 문제점들을 해소하기 위해 안출된 것으로, 보오링작업을 하지 않고도 수작업으로 시료를 채취할 수 있는 연약지반 시료채취기를 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, the object of the present invention is to provide a soft ground sampler that can take a sample manually without boring.

상기한 바의 목적을 달성하기 위한 본 발명은, 상부에 개방부가 형성되고 하부가 원추형으로 형성되며 외측면에 복수개의 외관로드가 연결설치된 원통형의 채취외관과, 상기 채취외관의 내부에 그 개방부를 통해 탈착가능하게 삽입되고 상부가 개방되어 시료를 담아 저장하는 채취용기 및, 상기 채취외관에 삽입된 채취내관에 탈착가능하게 삽입되고 외주면에 원주방향으로 소정간격을 두고 복수개의 압력조절홀이 형성되며 상부에 복수개의 내관로드가 연결설치된 원통형의 채취내관으로이루어진 구조이다.The present invention for achieving the object of the above, the opening is formed in the upper portion, the lower portion is formed in a conical shape and the cylindrical outer appearance and a plurality of exterior rods connected to the outer surface, and the opening portion in the interior of the collecting exterior A sampling container which is inserted detachably through the top and is opened to contain a sample, and is detachably inserted into the sampling inner tube inserted into the sampling exterior, and a plurality of pressure control holes are formed at predetermined intervals in the circumferential direction on the outer circumferential surface thereof. It is a structure consisting of a cylindrical collection of inner tube with a plurality of inner tube rods connected to the upper portion.

따라서, 상기 내관로드와 외관로드를 작업자가 각각 조정하여 채취내관과 채취외관을 독립적으로 움직임으로써 시료채취를 수작업으로 할 수 있게 되는 것이다.Therefore, the operator can adjust the inner tube rod and the outer rod, respectively, so that the sampling can be done manually by independently moving the inner tube and the outer tube.

도 1은 본 발명에 따른 연약지반 시료채취기를 나타낸 분해사시도,1 is an exploded perspective view showing a soft ground sampler according to the present invention,

도 2는 본 발명의 결합상태를 나타낸 사시도,2 is a perspective view showing a combined state of the present invention,

도 3은 본 발명의 사용상태를 나타낸 개략적 측면도이다.Figure 3 is a schematic side view showing a state of use of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10 : 채취외관 11 : 개방부10: appearance of appearance 11: opening

12 : 외관로드 13 : 외관손잡이12: appearance rod 13: appearance handle

20 : 채취용기 30 : 채취내관20: collection container 30: collection inner tube

31 : 압력조절홀 32 : 내관로드31: pressure adjustment hole 32: inner tube rod

33 : 내관손잡이33: inner tube handle

이하 본 발명을 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 연약지반 시료채취기를 나타낸 분해사시도이고, 도 2는 본 발명의 결합상태를 나타낸 사시도이다.1 is an exploded perspective view showing a soft ground sampler according to the present invention, Figure 2 is a perspective view showing a coupling state of the present invention.

상기한 도면에 의한 본 발명은, 상부에 개방부(11)가 형성되고 하부가 원추형으로 형성되며 외측면에 복수개의 외관로드(12)가 연결설치되되 일측 외관로드(12)의 선단에는 외관손잡이(13)가 형성된 원통형의 채취외관(10)과, 상기 채취외관(10)의 내부에 그 개방부(11)를 통해 탈착가능하게 삽입되고 상부가 개방되어 시료를 담아 저장하는 채취용기(20) 및, 상기 채취외관(10)에 채취외관(10)의 개방부(11)를 통해 탈착가능하게 삽입되고 외주면에 원주방향으로 소정간격을 두고 복수개의 압력조절홀(31)이 형성되며 상부에 복수개의 내관로드(32)가 연결설치되되 일측 외관로드(12)의 선단에 내관손잡이(33)가 형성된 원통형의 채취내관(30)으로 이루어진 구조이다.According to the present invention by the above drawings, the opening 11 is formed on the upper portion and the lower portion is formed in a conical shape, and the plurality of exterior rods 12 are connected to the outer surface of the exterior handle 12 at the tip of the exterior rod 12. Cylindrical collection appearance (10) having a cylindrical (13) is formed, and the extraction container 20 is inserted into the interior of the collection appearance 10 detachably through the opening (11) and the upper part is opened to contain the sample and store it. And a plurality of pressure adjusting holes 31 are formed in the collecting exterior 10 so as to be detachably inserted through the opening 11 of the collecting exterior 10 and have a predetermined interval in a circumferential direction on the outer circumferential surface thereof. Two inner tube rods 32 are connected to each other, but the inner tube rod 33 is formed on the front end of the outer tube handle 33 formed of a cylindrical collection inner tube 30.

상기의 구조로 된 본 발명의 특징은 채취내관(30)과 채취외관(10)에 내관로드(32)와 외관로드(12)가 각각 설치된 것에 있는 바, 내관로드(32)와 외관로드(12)를 작업자가 각각 조정하여 채취내관(30)과 채취외관(10)을 독립적으로 움직임으로써 시료채취를 수작업으로 할 수 있도록 된 것이다.The features of the present invention having the above structure is that the inner tube rod 32 and the outer rod 12 are installed in the inner tube 30 and the outer tube 10, respectively, the inner tube rod 32 and the outer rod 12 ) By the operator to adjust each of the collection inner tube 30 and the collecting appearance (10) independently to be able to take the sample by hand.

본 발명의 또 하나의 특징은 채취내관(30)의 외주면에 압력조절홀(31)이 형성된 것에 있는 바, 채취내관(30)을 채취외관(10)에서 탈거한 후 압력조절홀(31)을 통해 시료를 채취할 수 있도록 된 것이다.Another feature of the present invention is that the pressure adjusting hole 31 is formed on the outer circumferential surface of the collecting inner tube 30, and the pressure adjusting hole 31 is removed after removing the collecting inner tube 30 from the collecting outer tube 10. The sample can be collected through.

상기 채취외관(10)은 채취내관(30)과 채취용기(20)를 외부와 접촉되지 않게 하면서 지하에 관입시키는 역할을 하는 것으로, 하부가 원추형으로 형성되어 추진이 용이하고, 상부에 개방부(11)가 형성되어 채취내관(30)과 채취용기(20)가 자유롭게 출입할 수 있도록 되어 있다.The harvesting appearance 10 serves to penetrate the collection inner tube 30 and the collecting container 20 to the basement without being in contact with the outside, the lower portion is formed in a conical shape, the propulsion is easy, the open portion (on the top) 11) is formed so that the inner tube 30 and the collection container 20 can be freely entered.

상기 외관로드(12)는 상기 채취외관(10)의 외주면에 고정설치되어 채취외관(10)을 조정하는 역할을 하는 것으로, 복수개가 나사식으로 결합가능하도록 되어 작업깊이에 따라 복수개를 연결하여 연장시킬 수 있게 되는 것이다.The exterior rod 12 is fixed to the outer circumferential surface of the collecting appearance 10 to adjust the collecting appearance 10, and the plurality of screws are coupled to each other so as to be coupled by a working depth. You will be able to.

여기서, 작업자가 수작업으로 채취외관(10)을 관입시킬 수 있는 깊이는 통상 10m 정도로 본 발명에 따른 시료채취기를 이용하여 시료를 채취할 수 있는 작업에 한계가 있으나, 준설토나 연약지반 점토층과 같이 보오링 장비가 진입하기 곤란한 작업장에서는 수인의 작업자가 합판이나 스티로폴과 같은 이동발판을 통해 시료채취지점의 지상까지 이동한 후 수작업으로 시료를 채취할 수 있어 소정의 목적을 달성할 수 있게 되는 것이다.Here, the depth that the worker can inject the collection appearance 10 by hand is limited to the operation that can collect the sample by using the sampler according to the present invention to about 10m, such as dredged soil or soft ground clay layer In the workplace where the O-ring equipment is difficult to enter, it is possible to achieve a predetermined purpose by collecting a sample by manual worker after moving to the ground of the sampling point through a moving scaffold such as plywood or styropol.

상기 채취내관(30)은 상기 채취외관(10)에 그 개방부(11)를 통해 출입하여 채취용기(20)에 시료가 유입되도록 하는 덮개의 역할을 하는 것으로, 외주면에 압력조절홀(31)이 원주방향을 따라 소정간격을 두고 복수개가 형성되되, 각 압력조절홀(31)은 채취내관(30)의 길이방향으로 길게 형성되어 채취내관(30)이 채취외관(10)에 용이하게 삽입될 수 있게 되는 것이다.The collection inner tube 30 serves as a cover for entering the sample through the opening 11 of the outer tube 10 to the sample container 20, the pressure control hole 31 on the outer peripheral surface A plurality is formed at predetermined intervals along the circumferential direction, each pressure control hole 31 is formed long in the longitudinal direction of the collecting inner tube 30 so that the collecting inner tube 30 can be easily inserted into the collecting outer tube 10. It will be possible.

즉, 상기 채취내관(30)이 채취외관(10)의 내부에 슬라이드 삽입될 때 채취외관(10)의 내부에 공기나 시료로 채워져 있어 채취내관(30)을 그대로 삽입할 경우에는 내부압력에 의해 삽입이 용이하지 않게 되는데, 상기 압력조절홀(31)을 통해 내부의 공기나 시료를 배출시킴으로써 채취내관(30)이 채취외관(10)에 용이하게 삽입되는 것이다.That is, when the sampling inner tube 30 is slide-inserted into the collecting outer tube 10, the inside of the collecting outer tube 10 is filled with air or a sample. Insertion is not easy, by extracting the internal air or the sample through the pressure control hole 31 is the inner tube 30 is easily inserted into the outer tube (10).

상기 내관로드(32)는 상기 채취내관(30)의 상부면에 고정설치되어 채취내관(30)을 조정하는 역할을 하는 것으로, 복수개가 나사식으로 결합가능하도록 되어 상기 외관로드(12)와 함께 작업깊이에 따라 복수개를 연결하여 연장시킬 수 있게 되는 것이다.The inner tube rod 32 is fixed to the upper surface of the collecting inner tube (30) serves to adjust the collecting inner tube (30), and a plurality of screws are coupled to the outer rod (12) together According to the working depth it is possible to extend by connecting a plurality.

상기 채취용기(20)는 상기 채취외관(10)의 내부에 삽입되되 상기 채취내관(30)의 외주면에 끼워져 채취내관(30)에서 채취된 시료를 담아 저장하는 역할을 하는 것으로, 상기 채취외관(10)이나 채취내관(30)과 별도로 구비되어 관입작업시 채취외관(10)에 채취내관(30)과 함께 삽입되었다가 채취외관(10)이 지상으로 복귀된 후에 채취외관(10)에서 분리하여 사용자가 시료를 얻을 수 있게 되는 것이다.The collecting container 20 is inserted into the inside of the collecting exterior 10 but is inserted into the outer circumferential surface of the collecting inner tube 30 to store and store a sample collected from the collecting inner tube 30. 10) It is provided separately from the collection inner tube 30 and inserted into the collecting outer tube (10) with the collecting inner tube (30) during the penetration operation, and then separated from the collecting outer tube (10) after the collecting outer tube (10) is returned to the ground The user can obtain a sample.

한편, 상기 외관로드(12)의 외관손잡이(13)와 내관로드(32)의 내관손잡이(33)는 작업자가 외관로드(12)와 내관로드(32)를 각각 용이하게 조정할 수 있도록 하는 역할을 하는 것이다.On the other hand, the outer handle 13 of the outer rod 12 and the inner tube handle 33 of the inner tube rod 32 serves to enable the operator to easily adjust the outer rod 12 and the inner tube rod 32, respectively. It is.

상기의 구성으로 된 본 발명을 통해 작업자가 시료를 채취하는 과정을 설명하면,Referring to the process of the worker taking a sample through the present invention having the above configuration,

먼저, 채취외관(10)에 채취용기(20)를 삽입한 후 채취외관(10)과 채취내관(30)을 연결하고, 연결된 이중관을 외관로드(12)와 내관로드(32)를 조정하여 원하는 채취깊이로 관입시킨 다음, 외관로드(12)를 고정시킨 상태에서 내관로드(32)를 조정하여 채취내관(30)을 들어 올리며, 채취용기(20)에 시료가 충분히 유입되어 담겨지도록 채취내관(30)을 들어 올린 상태로 일정시간 방치하며, 다시 채취내관(30)과 채취외관(10)을 연결시킨 후 지상으로 들어 올린 다음 채취내관(30)과 채취외관(10)을 분리하여 채취용기(20)를 회수하게 되는 것이다.First, insert the collecting container 20 into the collecting appearance 10, and then connecting the collecting appearance 10 and the collecting inner tube 30, and adjusts the external pipe 12 and the inner tube rod 32 connected to the desired double tube After injecting into the sampling depth, the inner tube rod 32 is adjusted while the exterior rod 12 is fixed, and the sampling inner tube 30 is lifted, and the sampling inner tube is formed so that the sample is sufficiently introduced into the sampling container 20. 30) and lifted for a certain time in a raised state, and again connected to the collection inner tube (30) and the harvesting exterior (10), and then lifted to the ground and then separate the collection inner tube (30) and the collection exterior (10) to collect the collection container 20) will be recovered.

따라서, 시료의 큰 교란없이 시료를 채취할 수 있게 되는 것이다.Therefore, the sample can be taken without major disturbance of the sample.

이상에서 설명한 바와 같이 본 발명에 따른 연약지반 시료채취기에 의하면, 준설토나 점토층과 같은 보오링 장비가 진입할 수 없는 연약지반의 시료를 수작업을 통해 간편하게 채취할 수 있을 뿐만 아니라 시료를 큰 교란없이 채취할 수 있어 지질조사에 중요하게 사용될 수 있는 효과가 있다.As described above, according to the soft ground sampler according to the present invention, the soft ground sample which boring equipment such as dredged soil or clay layer cannot enter can be easily collected by hand, and the sample can be collected without significant disturbance. There is an effect that can be used important for geological survey.

Claims (1)

작업자가 연약지반 위에 합판이나 스티로폰과 같은 보조발판을 딛고 서서 수작업으로 시료를 채취하는 연약지반 시료채취기에 있어서,In the soft ground sampler where the worker picks up the sample by standing on the soft ground and standing on the auxiliary scaffold such as plywood or styrophone, 상부에 개방부(11)가 형성되고, 하부가 원추형으로 형성되며, 외측면에 복수개의 외관로드(12)가 연결설치된 원통형의 채취외관(10)과;An open part 11 formed at an upper part thereof, a lower part formed in a conical shape, and a cylindrical collecting outer tube 10 having a plurality of exterior rods 12 connected to an outer side thereof; 상기 채취외관(10)의 내부에 그 개방부(11)를 통해 탈착가능하게 삽입되고, 상부가 개방되어 시료를 담아 저장하는 채취용기(20) 및;A sampling container 20 which is inserted into the collection exterior 10 through a opening 11 and detachably inserted thereinto, and has an upper portion open to store a sample; 상기 채취외관(10)에 삽입된 채취내관(30)에 탈착가능하게 삽입되고, 외주면에 원주방향으로 소정간격을 두고 복수개의 압력조절홀(31)이 형성되며, 상부에 복수개의 내관로드(32)가 연결설치된 원통형의 채취내관(30);으로 이루어진 것을 특징으로 하는 연약지반 시료채취기.Removably inserted into the collection inner tube 30 inserted into the collection outer tube 10, a plurality of pressure control holes 31 is formed at a predetermined interval in the circumferential direction on the outer circumferential surface, the plurality of inner tube rod 32 ) Is connected to the collection of the inner cylindrical collecting tube 30; characterized in that consisting of soft ground sampler.
KR10-2002-0038831A 2002-07-05 2002-07-05 Sampler for weak layer KR100492191B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114739760A (en) * 2022-03-11 2022-07-12 武汉科技大学 Method for quickly manufacturing large-size arbitrary-shape soft interlayer shear rheological undisturbed sample

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114739760A (en) * 2022-03-11 2022-07-12 武汉科技大学 Method for quickly manufacturing large-size arbitrary-shape soft interlayer shear rheological undisturbed sample
CN114739760B (en) * 2022-03-11 2024-04-16 武汉科技大学 Rapid manufacturing method of shear rheological original sample of large-size weak interlayer with arbitrary shape

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