KR20130072460A - Measuring apparatus of frost heaving pressure for earth and sand - Google Patents

Measuring apparatus of frost heaving pressure for earth and sand Download PDF

Info

Publication number
KR20130072460A
KR20130072460A KR1020110139888A KR20110139888A KR20130072460A KR 20130072460 A KR20130072460 A KR 20130072460A KR 1020110139888 A KR1020110139888 A KR 1020110139888A KR 20110139888 A KR20110139888 A KR 20110139888A KR 20130072460 A KR20130072460 A KR 20130072460A
Authority
KR
South Korea
Prior art keywords
freezing
soil
unit
sample
earth
Prior art date
Application number
KR1020110139888A
Other languages
Korean (ko)
Other versions
KR101285327B1 (en
Inventor
최창호
Original Assignee
한국건설기술연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국건설기술연구원 filed Critical 한국건설기술연구원
Priority to KR1020110139888A priority Critical patent/KR101285327B1/en
Publication of KR20130072460A publication Critical patent/KR20130072460A/en
Application granted granted Critical
Publication of KR101285327B1 publication Critical patent/KR101285327B1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/12—Thermometers specially adapted for specific purposes combined with sampling devices for measuring temperatures of samples of materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/42—Low-temperature sample treatment, e.g. cryofixation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24—Earth materials

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Geology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

PURPOSE: A freezing test device for soil is provided to measure physical properties caused by freezing positively, variously, and continuously. CONSTITUTION: A freezing test device for soil includes a soil tub (10), a freezing unit (20), and a measuring unit. A specimen (2) is filled in the soil tub. The measuring unit is installed on either of the upper and lower sides of the soil tub and freezes the specimen. The measuring unit measures a frost heaving force of the specimen inside the soil tub. The measuring unit includes a transmission unit (32) which is installed on the upper or lower side of the soil tub and outputs signals; and a reception unit (34) which is installed on a side of the soil tub and receives the signals output from the transmission unit. [Reference numerals] (31) Function generation; (33) Oscilloscope

Description

토사의 동결시험장치{MEASURING APPARATUS OF FROST HEAVING PRESSURE FOR EARTH AND SAND}Earthquake freezing test equipment {MEASURING APPARATUS OF FROST HEAVING PRESSURE FOR EARTH AND SAND}

본 발명은 토사의 동결에 따른 동상량, 동상압 등의 동상력을 시험할 수 있는 토사의 동결시험장치에 관한 것이다.The present invention relates to a soil freezing test apparatus that can test the power of frostbite, frostbite pressure and the like according to the freezing of soil.

겨울철만 되면 도로포장이나 구조물이 동상(frost heaving)에 의해 많은 피해를 입는다. 즉, 겨울철에 저온의 기온이 계속되면, 보조기층이나 노상 중 수분이 동결하여 얼음층이 발달하며, 이 얼음층이 주위 수분흡수로 성장하면서 체적이 팽창함에 따라 엄청난 동상력이 작용해 도로포장 등의 지반이 융기하면서 도로포장이나 철도, 상수도관 등의 구조물이 파손되는 것을 동상현상이라 한다. In winter, road pavements and structures are heavily damaged by frost heaving. In other words, if the temperature of the low temperature continues in winter, the ice layer develops by freezing moisture in the auxiliary base or roadbed, and the ice layer grows by absorbing the surrounding moisture, and as the volume expands, tremendous frostbite force acts on the ground such as road pavement. During this uplift, damage to structures such as road pavement, railways, and water pipes is called frostbite.

이러한 동상현상들을 방지하기 위해 동상현상이 발생될 수 있는 조건이 갖춰진 동토지역의 지반 구조물 설계시 설계정수, 안정성 분석 등을 위해, 그 지반을 이루는 토사의 동상력(즉, 동상으로 인한 체적팽창을 억제하고자 하는 힘)을 고려해야된다. In order to prevent such frostbite phenomena, the frostbite forces (ie, volume expansion due to frostbite) of soils that make up the ground are analyzed for design constants and stability analysis when designing ground structures in the tundra area where conditions of frostbite are prepared. Force to be suppressed).

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 동토지역의 지반 구조물 설계시 설계정수, 안정성 분석 등을 위해 그 지반을 이루는 토사의 동상력을 고려할 수 있도록, 토사의 동결상태를 시험할 수 있도록 구성된 토사의 동결시험장치를 제공함을 그 목적으로 한다.The present invention has been made to solve the above problems, to test the freezing state of earth and sand to consider the frost power of the ground for the design constant, stability analysis, etc. when designing the ground structure of the tundra area It is an object of the present invention to provide a freezing test apparatus for earth and sand, which is configured to be able to be used.

상기한 과제를 해결하기 위해 본 발명은 동결시험대상 시료(2)가 채워지는 토조(10), 상기 토조(10)의 상측과 하측 중 적어도 어느 한쪽에 설치되어 상기 시료(2)를 동결시키는 동결부(20) 및 상기 동결상태의 토조(10) 내 시료(2)의 동상력을 계측하는 계측부를 포함하며; 상기 계측부는 상기 토조(10)의 상측 또는 하측에 설치되어 신호가 출력되는 송신부(32) 및, 상기 토조(10)의 측면에 설치되어 상기 송신부(32)에서 출력된 신호가 입력되는 수신부(34)를 포함하는 것을 특징으로 하는 토사의 동결시험장치를 제공한다.In order to solve the above problems, the present invention is installed on at least one of the upper and lower sides of the tank 10, the top 10 and the bottom of the freezing test sample 2 is frozen to freeze the sample (2) And a measuring unit for measuring the in-phase force of the sample 2 in the frozen tank 10 in the frozen state; The measuring unit is provided on the upper side or the lower side of the basin 10, the transmitting unit 32 is output the signal, and the receiving unit 34 is installed on the side of the tofu 10, the signal output from the transmitter 32 is inputted It provides a soil freezing test apparatus comprising a).

상기 수신부(34)는 상기 토조(10)의 측면에 둘레방향을 따라 복수 설치될 수 있다.The receiving unit 34 may be provided in plural along the circumferential direction on the side surface of the toil 10.

상기 수신부(34)는 상기 토조(10)의 측면에 상하방향을 따라 복수 설치될 수 있다.The receiver 34 may be provided in plural along the up and down direction on the side surface of the toil 10.

상기 동결부(20)는 상기 토조(10)의 상측 및 하측에 각각 설치되며, 상호 독립적으로 작동되는 상부 동결부(22), 하부 동결부(24)를 포함하며; 상기 송신부(32)는 상기 상부 동결부(22)에 결합되어 상기 토조(10)의 상측에 설치될 수 있다.The freezing section (20) is provided on the upper side and the lower side of the soil (10), respectively, and includes an upper freezing section (22) and a lower freezing section (24) operated independently of each other; The transmitting unit 32 may be coupled to the upper freezing unit 22 and installed on the upper side of the toil 10.

상기 계측부는 상기 토조(10)의 측면에 설치되어 상기 토조(10) 내 시료(2)의 온도를 측정하는 온도계(36)를 더 포함할 수 있다.The measurement unit may further include a thermometer 36 installed at the side of the toil 10 to measure the temperature of the sample 2 in the toil 10.

본 발명은 동결 상황에 따른 시료의 물성 변화를 보다 실증적이고 다양하게 연속적으로 계측할 수 있으며, 특히 송신부를 토조의 상측 또는 하측에 설치하고 수신부를 토조의 측면에 설치하여 송신부와 수신부 간 신호 전달이 동결진행방향과 상이한 방향으로 이루어질 수 있도록 함으로써, 계측을 위한 요소를 더 추가하거나 구조를 복잡하게 구성하지 않지 용이하고 간단하게 토사의 동결시험을 구현할 수 있다.The present invention can measure the change in the physical properties of the sample according to the freezing situation more continuously and variously, in particular, the transmitter is installed on the upper side or the lower side of the forge, and the receiver is installed on the side of the forge so that the signal transmission between the transmitter and the receiver is easy. By allowing it to be made in a direction different from the freezing direction, it is possible to implement freezing test easily and simply without adding more measuring elements or complicated structure.

도 1은 본 발명에 따른 토사의 동결시험장치 구성도.
도 2는 본 발명에 따른 토사의 동결부 단면도.
도 3은 동결진행방향에 따른 토사의 동결 양상을 보여주는 모식도.1 is a block diagram of a soil freezing test apparatus according to the present invention.
Figure 2 is a cross-sectional view of the freezing portion of the earth and sand according to the present invention.
Figure 3 is a schematic diagram showing the freezing pattern of the earth and sand according to the freezing progress direction.

이하, 첨부도면을 참조하여 본 발명의 실시예에 관하여 상세히 설명한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 이하에 도시된 바와 같이, 본 발명에 따른 토사의 동결시험장치는 동결시험대상 시료(2)가 채워지는 토조(10)와, 토조(10)의 상측과 하측 중 적어도 어느 한쪽에 설치되어 시료(2)를 동결시키는 동결부(20)와, 동결상태의 토조(10) 내 시료(2)의 동상력을 계측하는 계측부를 포함할 수 있다.As shown in Figure 1 below, the freezing test apparatus of the earth and sand according to the present invention is installed on at least one of the upper and lower sides of the soil tank 10 and the soil tank 10 is filled with the sample (2) frozen test object. It may include a freezing unit 20 for freezing the sample (2), and a measuring unit for measuring the in-phase force of the sample (2) in the frozen tank 10.

토조(10)는 아크릴 몰드로 제조될 수 있으며, 토조(10)의 상면과 하면이 각각 상부 동결부(22), 하부 동결부(24)에 의해 복개될 수 있도록 개방된 구조를 취할 수 있다.The soil bath 10 may be made of an acrylic mold, and may have an open structure such that the upper and lower surfaces of the soil bath 10 may be covered by the upper freezing unit 22 and the lower freezing unit 24, respectively.

동결부(20)는 토사의 실증적인 동결시험을 위해, 토조(10)의 상측, 하측에 각각 설치되어 토조(10) 내 시료(2)를 동결시키는 상부 동결부(22), 하부 동결부(24)를 포함하며, 상부 동결부(22)와 하부 동결부(24)가 상호 독립적으로 작동되도록 구성될 수 있다. 즉, 실제 토사의 동결은 동시에 일체로 동결되는 것이 아니라 표면부터 동결이 진행되거나 지중으로부터 동결이 진행되거나 또는 표면과 지중 양 방향에서 동결이 진행된다. 따라서, 다양한 동결 상황을 모의 시험할 수 있도록, 동결부(20)는 상부 동결부(22)와 하부 동결부(24) 중 어느 하나만 작동되거나, 상부 동결부(22)와 하부 동결부(24)가 함께 동시에 작동될 수 있도록 이루어지는 것이 바람직하다. 그리고, 상부 동결부(22)와 하부 동결부(24)가 함께 작동되는 경우, 상부 동결부(22)와 하부 동결부(22)에 의한 동결 온도 등의 조건이 서로 같을 수도 있고 서로 다를 수도 있다. The freezing unit 20 is installed on the upper and lower sides of the soil 10 for the empirical freezing test of the soil, and the upper freezing unit 22 and the lower freezing unit 22 for freezing the sample 2 in the soil 10. 24, and the upper freezing section 22 and the lower freezing section 24 can be configured to operate independently of each other. In other words, the actual freezing of the soil is not frozen at the same time, instead of freezing from the surface, freezing from the ground or freezing in both the surface and the ground. Therefore, the freezing unit 20 may operate only one of the upper freezing unit 22 and the lower freezing unit 24, or the upper freezing unit 22 and the lower freezing unit 24 to simulate various freezing situations. It is preferred that they be made so that they can be operated together at the same time. When the upper freezing unit 22 and the lower freezing unit 24 are operated together, the conditions such as the freezing temperature by the upper freezing unit 22 and the lower freezing unit 22 may be the same or different. .

한편, 상부 동결부(22)는 토조(10)의 상면이 선택적으로 개방될 수 있도록, 토조(10)의 상측에 상하방향으로 이동 가능토록 설치될 수 있다.On the other hand, the upper freezing unit 22 may be installed to be movable in the vertical direction on the upper side of the toil 10, so that the upper surface of the toil 10 can be selectively opened.

이러한 동결부(20)는 다양한 구조로 실시될 수 있으며, 예컨대 토조(10) 내 시료(2)와 접촉되는 면이 알루미늄과 같이 열전도율이 우수한 소재로 제조되며 부동액(20a)이 공급되는 내부공간 및 부동액(20a)이 유,출입되는 입,출구(20c,20d)를 갖도록 형성된 케이스(20b)를 포함할 수 있다. 즉, 부동액(20a)이 케이스(20b)의 일측을 통해 케이스(20b)의 내부공간에 유입되고 케이스(20b)의 타측을 통해 케이스(20b)의 내부공간으로부터 배출되면서, 부동액(20a)의 냉기가 토조(10) 내 시료(2)에 전달되어 시료(2)가 동결될 수 있다.The freezing unit 20 may be implemented in a variety of structures, for example, the inner surface in which the surface contacting the sample 2 in the soil 10 is made of a material having excellent thermal conductivity, such as aluminum, and the antifreeze 20a is supplied, and The antifreeze 20a may include a case 20b formed to have inlets and outlets 20c and 20d through which the antifreeze 20a flows in and out. That is, the antifreeze 20a flows into the internal space of the case 20b through one side of the case 20b and is discharged from the internal space of the case 20b through the other side of the case 20b, thereby cooling the cold air of the antifreeze 20a. Is delivered to the sample 2 in the soil 10 can freeze the sample (2).

계측부는 토조(10)의 일측에 설치되어 토사의 동결시험을 위한 신호가 시료(2)로 출력되는 송신부(32)와, 토조(10)의 타측에 설치되어 송신부(32)로부터 출력되어 시료(2)를 통과한 신호가 수신되는 수신부(34)를 포함할 수 있다.The measuring unit is installed on one side of the toil 10 and a transmitter 32 for outputting a signal for freezing test of the soil is sent to the sample 2, and is installed on the other side of the toil 10 and outputted from the transmitter 32 to provide a sample ( It may include a receiver 34 for receiving a signal passing through 2).

특히, 송신부(32)는 동결부(20)에 의해 동결방향에 대응하여 토조(10)의 상측 또는 하측에 설치되며, 수신부(34)는 상하방향을 따라 송신부(32)와 마주보도록 설치되는 것이 아니라 동결부(20)에 의한 동결방향과 수직한 방향에 설치될 수 있도록 토조(10)의 측면에 설치되는 것을 특징으로 할 수 있다. In particular, the transmitter 32 is installed on the upper side or the lower side of the bath 10 in response to the freezing direction by the freezing unit 20, the receiver 34 is installed to face the transmitter 32 in the up and down direction. It may be characterized in that it is installed on the side of the toil 10 to be installed in a direction perpendicular to the freezing direction by the freezing unit 20.

송신부(32)는 상부 동결부(22)에 결합됨으로써 토조(10)의 상측에 설치될 수 있다. 이를 위해, 송신부(32)는 동결부(20)의 케이스(20b)의 내부 중앙에 설치된 보호관(40)을 통해 상부 동결부(22)에 결합될 수 있다. 즉, 보호관(40)은 송신부(32)의 상측부가 삽입되어 고정되는 송신부 결합부(42)와, 송신부 결합부(42)의 상측에 형성되어 송신부(32)에 연결된 송신용 케이블(32a)이 배선되는 케이블 배선부(44)로 이루어질 수 있다. 따라서, 송신부(32)가 상부 동결부(22)에 안정적으로 결합될 수 있다.The transmitting unit 32 may be installed on the upper side of the tank 10 by being coupled to the upper freezing unit 22. To this end, the transmitting unit 32 may be coupled to the upper freezing unit 22 through a protective tube 40 installed in the inner center of the case 20b of the freezing unit 20. That is, the protective tube 40 includes a transmitter coupling part 42 in which the upper part of the transmitter 32 is inserted and fixed, and a transmission cable 32a formed on the transmitter coupling part 42 and connected to the transmitter 32. It may be made of a cable wiring portion 44 to be wired. Thus, the transmitter 32 can be stably coupled to the upper freezer 22.

수신부(34)는 정확한 계측을 위해, 토조(10)의 측면에 둘레방향을 따라 복수 설치될 수 있다. The receiver 34 may be provided in plural along the circumferential direction on the side surface of the toil 10 for accurate measurement.

특히, 수신부(34)는 다양한 동결 상태에 따른 시료(2)의 물성 변화를 연속적으로 측정할 수 있도록, 토조(10)의 측면에 상하방향을 따라 복수 설치될 수 있다.In particular, the receiver 34 may be provided in plural along the up and down direction on the side surface of the toil 10 so that the change in the physical properties of the sample 2 according to various freezing conditions can be continuously measured.

즉, 토사의 동결이 표면과 지중 중 어느 한 방향으로 진행되든지 표면과 지중 양 방향에서 진행되든지 간에 상관없이, 모든 영역이 동시에 동일하게 동결되는 것이 아니라 도 3에 도시된 바와 같이 동결 방향을 따라 점진적으로 동결 진행된다. That is, regardless of whether the soil freeze proceeds in either the surface or the ground or in both the surface and the ground, all regions are not frozen at the same time but are progressively along the freezing direction as shown in FIG. 3. Freezing proceeds.

예컨대, 도 3a은 상부 동결부(22)에 의해 상측(즉, 표면)에서 하측(즉, 지중)을 향해 동결이 진행되는 예를 모식한 도면이고, 도 3b는 하부 동결부(24)에 의해 하측(즉, 지중)에서 상측(즉, 표면)을 향해 동결이 진행되는 예를 모식한 도면이고, 도 3c는 상부 동결부(22) 및 하부 동결부(24)에서 상측(즉, 표면)과 하측(즉, 지중)에서 동시에 양방향으로 동결이 진행되는 예를 모식한 도면이다. 도 3에서 도면부호 'I'는 동결된 영역이고, 도면부호 'E'는 동결 전 영역이며, 화살표는 동결 진행방향이다.For example, FIG. 3A is a view schematically illustrating an example in which freezing proceeds from the upper side (ie, the surface) to the lower side (ie, the ground) by the upper freezing unit 22, and FIG. 3B is the lower freezing unit 24. FIG. 3C is a view schematically illustrating an example in which freezing proceeds from the lower side (ie, the ground) toward the upper side (ie, the surface), and FIG. 3C illustrates the upper side (ie, the surface) of the upper freezing unit 22 and the lower freezing unit 24. It is a figure which shows the example which freezing progresses simultaneously in both directions from the lower side (that is, underground). In FIG. 3, reference numeral 'I' denotes a frozen region, reference numeral 'E' denotes a region before freezing, and an arrow indicates a freezing progress direction.

따라서, 수신부(34)가 토조(10)의 상측 또는 하측에 설치되어 송신부(32)와 동결 방향을 따라 일렬로 설치된다면, 송신부(32)와 수신부(34) 사이의 시료(2)의 동결 상태는 동결 전,후 2가지만 양상만 계측 가능하여, 특정 시점(즉, 동결 완료 상태)의 동결 상황에 따른 시료(2)의 물성만 계측할 수 있다. Thus, if the receiver 34 is installed above or below the earth 10 and is installed in line with the transmitter 32 in the freezing direction, the frozen state of the sample 2 between the transmitter 32 and the receiver 34 is Since only two aspects can be measured before and after freezing, it is possible to measure only the physical properties of the sample 2 according to the freezing state at a specific time point (that is, freezing completion state).

하지만, 본 발명과 같이 수신부(34)가 토조(10)의 측면에 상하방향을 따라 복수 설치됨에 따라, 동결 진행 중에는 동결 진행 상태에 따라 송신부(32)와 복수의 수신부(24) 간 시료(2)의 동결 상태가 각기 다른 양상을 보이기 때문에, 다양한 동결 상태에 따른 시료(2)의 물성 변화를 계측하는 것은 물론 동결 완료된 특정 시점은 물론 동결 진행 중에 연속적 계측이 가능하다. However, as shown in the present invention, as the receiver 34 is installed in a plurality of sides in the up-and-down direction on the side of the toil 10, the sample (2) between the transmitter 32 and the plurality of receivers 24 in accordance with the freezing progress during the freezing process Since the freezing state of) is different, it is possible to measure the change in physical properties of the sample 2 according to various freezing states, as well as to continuously measure during the freezing process as well as the specific time point of freezing.

그러므로, 본 발명은 토사의 동결시험에 대한 보다 실증적이고 다양한 데이터를 제공할 수 있다.Therefore, the present invention can provide more empirical and various data on the freezing test of earth and sand.

한편, 송신부(32)에는 시료(2)의 동결 상태 계측을 위한 신호 출력을 위해 전단파인 진동을 발생시키는 펑션제너레이터(funnction generator)(31)가 연결되며, 수신부(34)에는 수신부(34)에 입력된 신호를 처리하는 오실로스코프(oscilloscope)(33)가 연결된다. 그리고, 송신부(32)와 수신부(34)는 각각 전기-압력 변환에 의해 진동을 송신,수신할 수 있는 압력소자(piezoelectric element)로 이루어질 수 있다. On the other hand, a function generator 31 for generating shear wave vibration is connected to the transmitter 32 for outputting a signal for measuring the frozen state of the sample 2, and the receiver 34 is connected to the receiver 34. An oscilloscope 33 for processing the input signal is connected. In addition, the transmitter 32 and the receiver 34 may be formed of a piezoelectric element capable of transmitting and receiving vibrations by electric-pressure conversion, respectively.

아울러, 계측부는 토조(10)의 측면에 설치되어 토조(10) 내 시료(2)의 온도를 측정하는 온도계(36)를 더 포함함으로써, 시료(2)의 동결 상태를 계측할 수 있다. 이때, 온도계(36)는 정확한 계측 및 다양한 동결 상태에 따른 시료(2)의 물성 변화를 연속적으로 계측 가능토록, 토조(10)의 측면에 둘레방향 및 상하방향을 따라 각각 복수개 설치될 수 있다.In addition, the measurement unit further includes a thermometer 36 which is provided on the side of the soil tank 10 and measures the temperature of the sample 2 in the soil tank 10, thereby measuring the frozen state of the sample 2. In this case, a plurality of thermometers 36 may be installed in the circumferential direction and the up and down direction on the side of the earthwork 10 so as to be able to continuously measure the physical property change of the sample 2 according to accurate measurement and various freezing conditions.

이상에서는 본 발명의 바람직한 실시예를 예시적으로 설명하였으나, 본 발명의 범위는 이와 같은 특정 실시예에만 한정되는 것은 아니며, 특허청구범위에 기재된 범주 내에서 적절하게 변경 가능한 것이다. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention.

2; 시료 10; 토조
20; 동결부 22; 상부 동결부
24; 하부 동결부 32; 송신부
34; 수신부 36; 온도계2; Sample 10; Tojo
20; Freezing section 22; Upper freezing part
24; Lower freezing section 32; Transmitter
34; Receiver 36; thermometer

Claims (5)

동결시험대상 시료(2)가 채워지는 토조(10), 상기 토조(10)의 상측과 하측 중 적어도 어느 한쪽에 설치되어 상기 시료(2)를 동결시키는 동결부(20) 및 상기 동결상태의 토조(10) 내 시료(2)의 동상력을 계측하는 계측부를 포함하며;
상기 계측부는 상기 토조(10)의 상측 또는 하측에 설치되어 신호가 출력되는 송신부(32) 및, 상기 토조(10)의 측면에 설치되어 상기 송신부(32)에서 출력된 신호가 입력되는 수신부(34)를 포함하는 것을 특징으로 하는 토사의 동결시험장치.The freezing test target sample (2) is filled in the towing 10, the freezing unit 20 is installed on at least one of the upper and lower sides of the towing (10) to freeze the sample (2) and the freezing (10) a measurement unit for measuring the in-phase force of the sample 2 in the chamber;
The measuring unit is provided on the upper side or the lower side of the basin 10, the transmitting unit 32 is output the signal, and the receiving unit 34 is installed on the side of the tofu 10, the signal output from the transmitter 32 is inputted Soil freezing test apparatus comprising a). 청구항 1에 있어서,
상기 수신부(34)는 상기 토조(10)의 측면에 둘레방향을 따라 복수 설치되는 것을 특징으로 하는 토사의 동결시험장치.The method according to claim 1,
The receiving unit 34, the freezing test apparatus of the earth and sand, characterized in that a plurality is installed along the circumferential direction on the side surface of the earthenware (10). 청구항 2에 있어서,
상기 수신부(34)는 상기 토조(10)의 측면에 상하방향을 따라 복수 설치되는 것을 특징으로 하는 토사의 동결시험장치.The method according to claim 2,
The receiving unit 34, the freezing test apparatus of the earth and sand, characterized in that a plurality is installed along the vertical direction on the side of the soil (10). 청구항 1에 있어서,
상기 동결부(20)는 상기 토조(10)의 상측 및 하측에 각각 설치되며, 상호 독립적으로 작동되는 상부 동결부(22), 하부 동결부(24)를 포함하며;
상기 송신부(32)는 상기 상부 동결부(22)에 결합되어 상기 토조(10)의 상측에 설치되는 것을 특징으로 하는 토사의 동결시험장치.The method according to claim 1,
The freezing section (20) is provided on the upper side and the lower side of the soil (10), respectively, and includes an upper freezing section (22) and a lower freezing section (24) operated independently of each other;
The transmitter 32 is coupled to the upper freezing unit 22, the freezing test apparatus of the earth and sand, characterized in that installed on the upper side of the soil tank (10). 청구항 1 내지 청구항 4 중 어느 한 항에 있어서,
상기 계측부는 상기 토조(10)의 측면에 설치되어 상기 토조(10) 내 시료(2)의 온도를 측정하는 온도계(36)를 더 포함하는 것을 특징으로 하는 토사의 동결시험장치.


The method according to any one of claims 1 to 4,
The measuring unit further comprises a thermometer (36) installed on the side of the soil tank (10) for measuring the temperature of the sample (2) in the soil tank (10).


KR1020110139888A 2011-12-22 2011-12-22 Measuring apparatus of frost heaving pressure for earth and sand KR101285327B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020110139888A KR101285327B1 (en) 2011-12-22 2011-12-22 Measuring apparatus of frost heaving pressure for earth and sand

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110139888A KR101285327B1 (en) 2011-12-22 2011-12-22 Measuring apparatus of frost heaving pressure for earth and sand

Publications (2)

Publication Number Publication Date
KR20130072460A true KR20130072460A (en) 2013-07-02
KR101285327B1 KR101285327B1 (en) 2013-07-11

Family

ID=48987134

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110139888A KR101285327B1 (en) 2011-12-22 2011-12-22 Measuring apparatus of frost heaving pressure for earth and sand

Country Status (1)

Country Link
KR (1) KR101285327B1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142356A (en) * 2014-06-26 2014-11-12 水利部交通运输部国家能源局南京水利科学研究院 Centrifugal simulation system for freeze thawing deformation of water conveyance canal in salty-cold region
CN104359747A (en) * 2014-10-27 2015-02-18 中国地质调查局油气资源调查中心 Device and method for preparing and measuring frozen soil sample
CN104764665A (en) * 2015-02-28 2015-07-08 西安科技大学 Rock-like test piece crack water injection method for frost heave test
CN105158438A (en) * 2015-08-19 2015-12-16 山东路达试验仪器有限公司 Tester for soil frost-heaving ratio
CN108181343A (en) * 2015-04-10 2018-06-19 长安大学 Freezing Soils hydro-thermal power comprehensive testing method
CN109085048A (en) * 2018-07-26 2018-12-25 华中科技大学 A kind of cohesiveless soil freezes sample making apparatus
CN109283215A (en) * 2018-11-26 2019-01-29 中国地质大学（北京） The measuring method of tunnel in cold area country rock frost-heave force after multigelation damage
CN109884111A (en) * 2019-03-26 2019-06-14 哈尔滨工业大学 A kind of soil freezing heave and water-energy budget couple visualized experiment auxiliary device
CN110763718A (en) * 2019-12-02 2020-02-07 安徽理工大学 Frost heaving measuring instrument for realizing water heating power coupling action
CN113607919A (en) * 2021-07-29 2021-11-05 海南大学 Frost heaving and thawing sinking test device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105352989A (en) * 2015-10-27 2016-02-24 天津市港源试验仪器厂 Geo-technical frozen soil frost heave experiment machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100910383B1 (en) 2008-12-11 2009-08-04 신은철 Freeze testing apparatus for ground

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142356B (en) * 2014-06-26 2015-11-18 水利部交通运输部国家能源局南京水利科学研究院 Salty-cold district canal for water conveyance freeze thawing distortion centrifuge modelling system
CN104142356A (en) * 2014-06-26 2014-11-12 水利部交通运输部国家能源局南京水利科学研究院 Centrifugal simulation system for freeze thawing deformation of water conveyance canal in salty-cold region
CN104359747A (en) * 2014-10-27 2015-02-18 中国地质调查局油气资源调查中心 Device and method for preparing and measuring frozen soil sample
CN104764665A (en) * 2015-02-28 2015-07-08 西安科技大学 Rock-like test piece crack water injection method for frost heave test
CN108181343A (en) * 2015-04-10 2018-06-19 长安大学 Freezing Soils hydro-thermal power comprehensive testing method
CN105158438A (en) * 2015-08-19 2015-12-16 山东路达试验仪器有限公司 Tester for soil frost-heaving ratio
CN109085048A (en) * 2018-07-26 2018-12-25 华中科技大学 A kind of cohesiveless soil freezes sample making apparatus
CN109085048B (en) * 2018-07-26 2020-02-14 华中科技大学 Cohesionless soil freezing sample preparation equipment
CN109283215B (en) * 2018-11-26 2020-02-07 中国地质大学（北京） Method for measuring and calculating frost heaving force of tunnel surrounding rock in cold region after repeated freeze-thaw damage
CN109283215A (en) * 2018-11-26 2019-01-29 中国地质大学（北京） The measuring method of tunnel in cold area country rock frost-heave force after multigelation damage
CN109884111A (en) * 2019-03-26 2019-06-14 哈尔滨工业大学 A kind of soil freezing heave and water-energy budget couple visualized experiment auxiliary device
CN109884111B (en) * 2019-03-26 2021-05-07 哈尔滨工业大学 Use method of soil frost heaving and hydrothermal migration coupling visual experiment auxiliary device
CN110763718A (en) * 2019-12-02 2020-02-07 安徽理工大学 Frost heaving measuring instrument for realizing water heating power coupling action
CN110763718B (en) * 2019-12-02 2022-01-07 安徽理工大学 Frost heaving measuring instrument for realizing water heating power coupling action
CN113607919A (en) * 2021-07-29 2021-11-05 海南大学 Frost heaving and thawing sinking test device
CN113607919B (en) * 2021-07-29 2022-03-29 海南大学 Frost heaving and thawing sinking test device

Also Published As

Publication number Publication date
KR101285327B1 (en) 2013-07-11

Similar Documents

Publication Publication Date Title
KR101285327B1 (en) Measuring apparatus of frost heaving pressure for earth and sand
KR101280385B1 (en) Measuring apparatus of frost heaving pressure for earth and sand
US9140615B2 (en) Method and system for measuring pore-fluid pressure
Sheng et al. Assessing frost susceptibility of soils using PCHeave
CN109283215A (en) The measuring method of tunnel in cold area country rock frost-heave force after multigelation damage
CN103728185A (en) Low-temperature dynamic triaxial apparatus
CN102879552A (en) Freeze thawing and frost heaving model test device and testing method thereof
CN104236623A (en) Multifunctional automated monitoring system for frost heaving of water conveyance canal
Zhou et al. Practical prediction method on thaw deformation of soft clay subject to artificial ground freezing based on elaborate centrifuge modeling experiments
Sun et al. The relationship between thermal conductivity and electrical resistivity of silty clay soil in the temperature range− 20 C to 10 C
CN104215655A (en) Device and method for measuring heat conductivity coefficient of frozen earth in three-dimensional direction
CN105372284A (en) Device and method for testing frost heaving parameter of soil under standard compaction work
Liang et al. Temperature field spatio-temporal law and frozen-depth calculation of a tunnel in a seasonally frozen region
CN110333138A (en) It is a kind of for studying the experimental rig of ice and dam body interaction under low temperature environment
CN113532903A (en) Freezing and thawing cycle environment cold region tunnel simulation test platform
Loranger Laboratory investigation of frost susceptibility of crushed rock aggregates and field assessment of frost heave and frost depth
Luo et al. Coupled thermo-hydro-mechanical analysis of freeze–thaw behavior of pavement structure over a box culvert
Duan et al. Heat conduction with seasonal freezing and thawing in an active layer near a tower foundation
Mu et al. Thermal influence of ponding and buried warm-oil pipelines on permafrost: a case study of the China-Russia Crude Oil Pipeline
Yu et al. Analysis on the settlement of roadway embankments in permafrost regions
Ishikawa et al. Application of coupled thermo-hydro-mechanical analysis to frost-heave behavior of earth structures
CN116086939A (en) Test system for simulating three-dimensional stress field and cyclic freeze thawing environment of tunnel portal in cold region
CN107328861A (en) A kind of multi-functional physical parameter change modeling device in shield launching termination
Bilodeau et al. Assessment of the physical and mechanical properties of permafrost in Nunavik, Quebec, Canada
Liu et al. Study on frost heaving characteristics of gravel soil pavement structures of airports in Alpine regions

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160701

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20170704

Year of fee payment: 5

LAPS Lapse due to unpaid annual fee