JP7037024B1 - Frozen soil pore water pressure change measuring device - Google Patents
Frozen soil pore water pressure change measuring device Download PDFInfo
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- JP7037024B1 JP7037024B1 JP2021213555A JP2021213555A JP7037024B1 JP 7037024 B1 JP7037024 B1 JP 7037024B1 JP 2021213555 A JP2021213555 A JP 2021213555A JP 2021213555 A JP2021213555 A JP 2021213555A JP 7037024 B1 JP7037024 B1 JP 7037024B1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000002689 soil Substances 0.000 title claims abstract description 34
- 239000011148 porous material Substances 0.000 title claims abstract description 20
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 120
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 9
- 230000035515 penetration Effects 0.000 claims description 8
- 230000008014 freezing Effects 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000009530 blood pressure measurement Methods 0.000 claims description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010586 diagram Methods 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 27
- 230000008595 infiltration Effects 0.000 description 9
- 238000001764 infiltration Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- AMTWCFIAVKBGOD-UHFFFAOYSA-N dioxosilane;methoxy-dimethyl-trimethylsilyloxysilane Chemical compound O=[Si]=O.CO[Si](C)(C)O[Si](C)(C)C AMTWCFIAVKBGOD-UHFFFAOYSA-N 0.000 description 1
- 229940083037 simethicone Drugs 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0627—Protection against aggressive medium in general
- G01L19/0654—Protection against aggressive medium in general against moisture or humidity
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Sampling And Sample Adjustment (AREA)
- Image Analysis (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Image Processing (AREA)
Abstract
【課題】凍土間隙水圧変化の測定装置を提供する。【解決手段】測定装置は、装着ベースと、下端が装着ベース１に装着され得る媒体基部２と、下端が装着ベースに装着され得るとともに、上端が媒体基部に可動接続される浸透基部３とを含み、前記媒体基部は、媒体台座２１と、媒体台座内に設けられる媒体槽配管２２とを含み、前記媒体槽配管の内径が０．０５～０．０８ｍｍであり、且つ媒体槽配管は親水性材料を用い、媒体槽配管内に界面水が充填されている。本発明は、全体として構造の設計が合理的であり、媒体槽配管の特殊な構造及び材質と界面水とを組み合わせることにより、媒体内に水泡が生じやすく、その結果、測定失敗や測定範囲が小さいという従来技術の問題を効果的に回避し、界面水を媒体とすることによって、環境汚染の問題を効果的に回避でき、さらに、装置全体の構造と組み合わせることで良好なシール性を可能とし、測定範囲をより広げる。【選択図】図１PROBLEM TO BE SOLVED: To provide a measuring device for a change in water pressure in a frozen soil pore. A measuring device has a mounting base, a medium base 2 whose lower end can be mounted on the mounting base 1, and a permeation base 3 whose lower end can be mounted on the mounting base and whose upper end is movably connected to the medium base. The medium base includes a medium pedestal 21 and a medium tank pipe 22 provided in the medium pedestal, the inner diameter of the medium tank pipe is 0.05 to 0.08 mm, and the medium tank pipe is hydrophilic. Using the material, the medium tank piping is filled with interfacial water. In the present invention, the structure design is rational as a whole, and by combining the special structure and material of the medium tank piping with the interface water, water bubbles are likely to occur in the medium, resulting in measurement failure and measurement range. By effectively avoiding the problem of small size in the prior art and using interface water as a medium, the problem of environmental pollution can be effectively avoided, and in combination with the structure of the entire device, good sealing performance is possible. , Widen the measurement range. [Selection diagram] Fig. 1
Description
本発明は、凍土パラメータ測定装置の技術分野に関し、具体的には、凍土間隙水圧変化の
測定装置に関する。
The present invention relates to the technical field of a frozen soil parameter measuring device, and specifically to a measuring device for a change in water pressure between frozen soil pores.
高冷地域の工事建設の主な災害である凍結融解は高冷地域の工事建設に大きな問題をもた
らした。研究では、凍結融解が土壌構造及び強度に及ぼす影響は、凍結融解中の間隙水圧
の変化履歴と密接に関連していることがわかった。
Freezing and thawing, which is a major disaster in construction work in cold regions, has caused major problems in construction construction in cold regions. Studies have shown that the effect of freeze-thaw on soil structure and strength is closely related to the history of changes in pore water pressure during freeze-thaw.
したがって、凍結融解中の間隙水圧変化の研究は、凍結融解による影響を研究するための
重要なパラメータになっている。しかし、土壌が凍結している状態で土壌の間隙水圧を測
定することは常に技術的に困難であるため、現在、エタノール、シメチコン、ｎ－デカン
など負の温度で凍結しにくい液体物質を媒体として凍土間隙水圧変化を測定するのが一般
的であるが、これらの物質は土壌を汚染するため、従来技術では、凍結土壌の間隙水圧変
化を測定するための特定の基準や装置はまだなかった。このため、現在のところ、凍結土
壌の間隙水圧変化を測定する装置が求められる。
Therefore, the study of pore water pressure changes during freeze-thaw has become an important parameter for studying the effects of freeze-thaw. However, since it is always technically difficult to measure the pore water pressure of soil when the soil is frozen, liquid substances that are difficult to freeze at negative temperatures such as ethanol, simethicone, and n-decane are currently used as media. Although it is common to measure changes in pore water pressure in frozen soil, these substances contaminate the soil, so prior art has not yet provided specific criteria or equipment for measuring changes in pore water pressure in frozen soil. Therefore, at present, there is a demand for a device for measuring the change in pore water pressure in frozen soil.
［発明が解決しようとする課題］
本発明の目的は凍土間隙水圧変化の測定装置を提供することである。
[Problems to be solved by the invention]
An object of the present invention is to provide a measuring device for a change in water pressure between frozen soil pores.
［課題を解決するための手段］
本発明の技術案は以下のとおりである。装着ベースと、下端が装着ベースに装着され得る
媒体基部と、下端が装着ベースに装着され得るとともに、上端が媒体基部に可動に接続さ
れる浸透基部とを含む凍土間隙水圧変化の測定装置であって、
前記装着ベースは、装着ヘッドが上端に設けられる装着台座と、装着台座の上面の中心に
嵌設される圧力センサとを含み、前記装着ヘッドの内側に第１の装着溝が設けられ、
前記媒体基部は、上端に浸透溝が設けられ、下端に圧力測定溝が設けられる媒体台座と、
媒体台座に設けられ、且つ上部ポートが浸透溝と連通し、下部ポートが圧力測定溝と連通
する媒体槽配管とを含み、
前記浸透基部は、上端に収容溝が設けられ、下端に第２の装着溝が設けられる浸透台座と
、収容溝内に装着される浸透ヘッドとを含み、
前記浸透台座の下端は第２の装着溝、装着ヘッドを介して装着台座に可動装着され、前記
媒体台座の下端は圧力測定溝の側壁、第１の装着溝を介して装着台座に可動装着され、且
つ媒体台座は浸透台座の内部に位置し、媒体台座の上端の外側壁は浸透台座の内側壁に可
動接続され、前記浸透ヘッドの下端は浸透溝に嵌め込まれ、前記圧力センサの上端は圧力
測定溝に嵌め込まれ、
前記媒体台座と装着台座の接続箇所、媒体台座と浸透台座の接続箇所のいずれにもシール
モジュールが設けられ、
前記媒体槽配管の内径が０．０５～０．０８ｍｍであり、且つ媒体槽配管は親水性材料を
用い、媒体槽配管内に界面水が充填されている。親水性材料の表面が水分子とミクロンレ
ベルの相互作用力で相互作用し、この範囲内の水が一般に界面水と呼ばれ、界面水の物理
的及び機械的特性にはバルク水とは大きな差異が存在し、このため、媒体槽配管の内径を
０．０５～０．０８ｍｍに設定することによって、媒体槽配管内に充填されている媒体水
が界面水となり、負圧でエアキャビティが形成される下限が低下し、装置の測定範囲が効
果的に拡大され、且つ界面水を力伝達媒体とすると、他の媒体の使用による環境汚染の問
題が効果的に回避される。
[Means to solve problems]
The technical proposal of the present invention is as follows. A device for measuring changes in frozen soil pore water pressure, including a mounting base, a medium base whose lower end can be mounted on the mounting base, and a permeation base whose lower end can be mounted on the mounting base and whose upper end is movably connected to the medium base. hand,
The mounting base includes a mounting pedestal on which the mounting head is provided at the upper end and a pressure sensor fitted in the center of the upper surface of the mounting pedestal, and a first mounting groove is provided inside the mounting head.
The medium base has a medium pedestal having a permeation groove at the upper end and a pressure measuring groove at the lower end.
A medium tank pipe provided on the medium pedestal with an upper port communicating with the permeation groove and a lower port communicating with the pressure measuring groove.
The permeation base includes a permeation pedestal provided with an accommodating groove at the upper end and a second mounting groove at the lower end, and a permeation head mounted in the accommodating groove.
The lower end of the permeation pedestal is movably mounted on the mounting pedestal via the second mounting groove and the mounting head, and the lower end of the medium pedestal is movably mounted on the mounting pedestal via the side wall of the pressure measuring groove and the first mounting groove. The medium pedestal is located inside the infiltration pedestal, the outer wall of the upper end of the medium pedestal is movably connected to the inner wall of the infiltration pedestal, the lower end of the infiltration head is fitted into the infiltration groove, and the upper end of the pressure sensor is pressure. Fitted in the measuring groove,
Seal modules are provided at both the connection point between the medium pedestal and the mounting pedestal and the connection point between the medium pedestal and the penetration pedestal.
The inner diameter of the medium tank pipe is 0.05 to 0.08 mm, the medium tank pipe is made of a hydrophilic material, and the medium tank pipe is filled with interfacial water. The surface of the hydrophilic material interacts with water molecules at the micron level, and water within this range is generally called interface water, which is significantly different from bulk water in the physical and mechanical properties of surface water. Therefore, by setting the inner diameter of the medium tank pipe to 0.05 to 0.08 mm, the medium water filled in the medium tank pipe becomes the interface water, and an air cavity is formed by negative pressure. When the lower limit is lowered, the measurement range of the device is effectively expanded, and the interface water is used as a force transmission medium, the problem of environmental pollution due to the use of other media is effectively avoided.
本発明の一態様として、前記シールモジュールは、具体的には、シールパッドであり、且
つ前記媒体台座と装着台座の接続箇所、媒体台座と浸透台座の接続箇所のいずれにも、前
記シールモジュールを係止するためのシール係止溝が設けられている。シールパッドが設
けられることにより、装着台座、媒体台座、浸透台座の接続ポートが効果的にシールされ
、このように、実際には凍土間隙水圧を測定するにあたって、装置のシールが不十分であ
ることによって測定が不正確になるという問題を効果的に回避する。
As one aspect of the present invention, the seal module is specifically a seal pad, and the seal module is attached to any of the connection points between the medium pedestal and the mounting pedestal and the connection points between the medium pedestal and the penetration pedestal. A seal locking groove for locking is provided. By providing the seal pad, the connection ports of the mounting pedestal, the medium pedestal, and the infiltration pedestal are effectively sealed, and thus the device is not sufficiently sealed to actually measure the frozen soil pore water pressure. Effectively avoids the problem of inaccurate measurements.
本発明の一態様として、前記媒体台座は、装着台座、浸透台座のそれぞれにネジで接続さ
れ、前記シールモジュールは、具体的には、ネジに塗布された嫌気性接着剤である。嫌気
性接着剤を用いて装着台座、媒体台座、浸透台座の接続接触面をさらに効果的にシールす
ることができる。
As one aspect of the present invention, the medium pedestal is connected to each of the mounting pedestal and the permeation pedestal with screws, and the seal module is specifically an anaerobic adhesive applied to the screws. Anaerobic adhesives can be used to more effectively seal the connecting contact surfaces of the mounting pedestal, medium pedestal, and permeation pedestal.
本発明の一態様として、前記装着台座、浸透台座の露出部位全体にシール層が設けられる
。露出部位にシール層が設けられると、装置全体のシール性が効果的に確保され、凍土中
の間隙水が浸透ヘッドを介してしか装置に入ることができず、測定精度がさらに向上する
。
本発明の一態様として、前記媒体槽配管の内壁には超親水性コーティングが設けられ、超
親水性コーティングは、具体的には、ナノＴｉＯ２コーティングである。超親水性コーテ
ィングによって、その表面が水分子と相互作用することを効果的に確保し、媒体槽配管中
に界面水が充填されることを確保する。
As one aspect of the present invention, a seal layer is provided on the entire exposed portion of the mounting pedestal and the permeation pedestal. When the sealing layer is provided on the exposed portion, the sealing property of the entire device is effectively ensured, and the interstitial water in the frozen soil can enter the device only through the permeation head, further improving the measurement accuracy.
As one aspect of the present invention, a super-hydrophilic coating is provided on the inner wall of the medium tank pipe, and the super-hydrophilic coating is specifically a nano-TiO2 coating. The super-hydrophilic coating effectively ensures that the surface interacts with water molecules and ensures that the medium tank piping is filled with interfacial water.
本発明の一態様として、補助手段を含み、
前記補助手段は、装着ベースと、装着ベースに装着されて箱体を構成し得る板材と、装着
ベースに装着されるサンプル収容ユニットとを含み、前記サンプル収容ユニットは、装着
ベースに装着される底部密閉板と、底端が底部密閉板に可動接続されて、測定対象土壌サ
ンプルを収容するための試料収容管と、箱体の頂部に装着されて、試料収容管のトップに
可動接続され、且つ内部に凍結液コイルが巻設された頂部密閉板と、底部密閉板、頂部密
閉板の温度をそれぞれ制御する２組の凍結液サイクル温度制御部材とを含み、
前記試料収容管の側壁に測定孔が開けられている。補助手段によれば、現場以外の測定の
場合のサンプリング測定のシナリオを可能とし、且つ温度パラメータを変えて、温度影響
による研究凍土間隙水圧の変化を研究することを可能とする。
As one aspect of the present invention, an auxiliary means is included.
The auxiliary means includes a mounting base, a plate material mounted on the mounting base to form a box body, and a sample storage unit mounted on the mounting base, wherein the sample storage unit is a bottom mounted on the mounting base. A sealing plate, a sample accommodating tube whose bottom end is movably connected to the bottom sealing plate to accommodate the soil sample to be measured, and a sample accommodating tube mounted on the top of the box body, movably connected to the top of the sample accommodating tube, and It includes a top sealing plate with a freezing liquid coil wound inside, and two sets of freezing liquid cycle temperature control members that control the temperature of the bottom sealing plate and the top sealing plate, respectively.
A measuring hole is formed in the side wall of the sample accommodating tube. Auxiliary means enable sampling measurement scenarios for non-field measurements and change temperature parameters to study changes in research frozen soil pore water pressure due to temperature effects.
本発明の一態様として、前記補助手段は、試料収容管の内部へ水を補給するための水補給
装置をさらに含む。水補給装置によれば、試験において凍結融解中の土壌サンプルへ水分
を補給することができる。
As one aspect of the present invention, the auxiliary means further includes a water replenishing device for replenishing water to the inside of the sample accommodating tube. The water replenishment device can rehydrate the soil sample during freezing and thawing in the test.
従来技術に比べて、本発明の有益な効果は以下のとおりである。本発明は、全体として構
造の設計が合理的であり、媒体槽配管の特殊な構造及び材質と界面水とを組み合わせるこ
とにより、媒体内に水泡が生じやすく、その結果、測定失敗や測定範囲が小さいという従
来技術の問題を効果的に回避し、また、エタノール、ｎ－デカン、シメチコンなどの物質
の代わりとして界面水を凍土間隙水圧測定用の媒体とすることによって、測定による環境
汚染の問題を効果的に回避し、さらに、装置全体の構造と組み合わせることで良好なシー
ル性を可能とし、実際の適用には測定範囲をより広げる。
Compared with the prior art, the beneficial effects of the present invention are as follows. In the present invention, the structure design is rational as a whole, and by combining the special structure and material of the medium tank piping with the interface water, water bubbles are likely to occur in the medium, resulting in measurement failure and measurement range. By effectively avoiding the problem of small size in the prior art, and by using the interface water as a medium for measuring the water pressure in the frozen soil pores instead of substances such as ethanol, n-decane, and cymethicone, the problem of environmental pollution due to measurement can be solved. Effectively avoiding it, and in combination with the overall structure of the device, allows for good sealing and further expands the measurement range for practical application.
［符号の説明］
１－装着ベース、１０１－装着ヘッド、１０２－第１の装着溝、１１－装着台座、１２－
圧力センサ、２－媒体基部、２０１－浸透溝、２０２－圧力測定溝、２１－媒体台座、２
２－媒体槽配管、３－浸透基部、３０１－収容溝、３０２－第２の装着溝、３１－浸透台
座、３２－浸透ヘッド、４－シールモジュール、５－補助手段、５１－装着ベース、５２
－箱体、５２０－板材、５３－底部密閉板、５４－試料収容管、５４０－測定孔、５５－
頂部密閉板。
[Explanation of code]
1-Mounting base, 101-Mounting head, 102-First mounting groove, 11-Mounting pedestal, 12-
Pressure sensor, 2-medium base, 201-penetration groove, 202-pressure measurement groove, 21-medium pedestal, 2
2-Medium tank piping, 3-Penetration base, 301-Accommodation groove, 302-Second mounting groove, 31-Penetration pedestal, 32-Penetration head, 4-Seal module, 5-Auxiliary means, 51-Mounting base, 52
-Box body, 520-plate material, 53-bottom sealing plate, 54-sample storage tube, 540-measurement hole, 55-
Top sealing plate.
実施例１
図１、図２に示す凍土間隙水圧変化の測定装置は、装着ベース１と、下端が装着ベース１
に装着され得る媒体基部２と、下端が装着ベース１に装着され得るとともに、上端が媒体
基部２に可動に接続される浸透基部３とを含み、
装着ベース１は、装着ヘッド１０１が上端に設けられる装着台座１１と、装着台座１１の
上面の中心に嵌設される圧力センサ１２とを含み、装着ヘッド１０１の内側に第１の装着
溝１０２が設けられ、
媒体基部２は、上端に浸透溝２０１が設けられ、下端に圧力測定溝２０２が設けられる媒
体台座２１と、媒体台座２１に設けられ、且つ上部ポートが浸透溝２０１と連通し、下部
ポートが圧力測定溝２０２と連通する媒体槽配管２２とを含み、
浸透基部３は、上端に収容溝３０１が設けられ、下端に第２の装着溝３０２が設けられる
浸透台座３１と、収容溝３０１内に装着される浸透ヘッド３２とを含み、
浸透台座３１の下端は、第２の装着溝３０２、装着ヘッド１０１を介して装着台座１１に
可動装着され、媒体台座２１の下端は圧力測定溝２０２の側壁、第１の装着溝１０２を介
して装着台座１１に可動装着され、且つ媒体台座２１は浸透台座３１の内部に位置し、媒
体台座２１の上端の外側壁は浸透台座３１の内側壁に可動接続され、浸透ヘッド３２の下
端は浸透溝２０１に嵌め込まれ、圧力センサ１２の上端は圧力測定溝２０２に嵌め込まれ
、
媒体台座２１と装着台座１１の接続箇所、媒体台座２１と浸透台座３１の接続箇所のいず
れにもシールモジュール４が設けられ、媒体台座２１は装着台座１１、浸透台座３１のそ
れぞれにネジで接続され、シールモジュール４は、具体的には、ネジに塗布されている嫌
気性接着剤であり、ここで、嫌気性接着剤は、具体的には、型号番号ＸＫ５６９の管路用
嫌気性接着剤であり、
媒体槽配管２２の内径が０．０５ｍｍであり、且つ媒体槽配管２２は親水性材料、具体的
にはクロム金属を用い、媒体槽配管２２内に界面水が充填されている。
Example 1
In the frozen soil pore water pressure change measuring device shown in FIGS. 1 and 2, the
Includes a
The
The
The
The lower end of the
A
The inner diameter of the
実施例２
実施例１と比較して、媒体槽配管２２の内径が０．０５ｍｍであり、
図３、図４に示すように、シールモジュール４は、具体的には、シールパッドであり、且
つ媒体台座２１と装着台座１１の接続箇所、媒体台座２１と浸透台座３１の接続箇所のい
ずれにも、シールモジュール４を係止するためのシール係止溝が設けられている点で相違
している。
Example 2
The inner diameter of the
As shown in FIGS. 3 and 4, the
実施例３
実施例１と比較して、媒体槽配管２２の内径が０．０６ｍｍであり、装着台座１１、浸透
台座３１の露出部位全体にシール層が設けられる点で相違している。
Example 3
Compared with the first embodiment, the inner diameter of the
実施例４
実施例１と比較して、媒体槽配管２２の内径が０．０８ｍｍであり、媒体台座２１は装着
台座１１、浸透台座３１のそれぞれにネジで接続され、シールモジュール４は、具体的に
は、ネジに塗布されてている嫌気性接着剤であり、ここで、嫌気性接着剤は、具体的には
、型番ＸＫ５６９の管路用嫌気性接着剤であり、媒体台座２１と装着台座１１の接続箇所
、媒体台座２１と浸透台座３１の接続箇所のいずれにも、シールモジュール４が設けられ
、シールモジュール４は、具体的には、シールパッドであり、且つ媒体台座２１と装着台
座１１の接続箇所、媒体台座２１と浸透台座３１の接続箇所のいずれにも、シールモジュ
ール４を係止するためのシール係止溝が設けられ、装着台座１１、浸透台座３１の露出部
位全体にシール層が設けられ、シール層は、具体的にはＭａｔｒｉＸｂｏｎｄ３５３３Ｐ
ＵＲ電子構造用接着剤を用いる点で相違している。
Example 4
Compared with the first embodiment, the inner diameter of the
The difference is that the UR electronic structure adhesive is used.
実施例５
実施例１と比較して、媒体槽配管２２の内径が０．０８ｍｍであり、媒体槽配管２２の内
壁に超親水性コーティングが設けられ、超親水性コーティングは、具体的にはナノＴｉＯ
２コーティングである点で相違している。
Example 5
Compared with Example 1, the inner diameter of the
The difference is that they are two coatings.
実施例６
実施例１と比較して、図５に示すように、補助手段５をさらに備え、補助手段５は、装着
ベース５１と、装着ベース５１に装着されて箱体５２を構成し得る板材５２０と、装着ベ
ース１に装着されるサンプル収容ユニットとを含み、サンプル収容ユニットは、装着ベー
ス５１に装着される底部密閉板５３と、底端が底部密閉板５３に可動接続されて、測定対
象土壌サンプルを収容する試料収容管５４と、箱体５２の頂部に装着されて、試料収容管
５４のトップに可動接続され、且つ内部に凍結液コイルが巻設された頂部密閉板５５と、
底部密閉板５３、頂部密閉板５５の温度をそれぞれ制御する２組の凍結液サイクル温度制
御部材と、試料収容管５４の内部へ水を補給するための水補給装置とを含み、試料収容管
５４の側壁に測定孔５４０が開けられ、ここで、板材５２０は具体的にはポリメチルメタ
クリレートを用い、試料収容管５４は具体的にはポリメチルメタクリレートタンクである
点で相違している。
なお、測定孔５４０は、土壌サンプルの異なる部位の温度及び圧力を測定することに用い
られ、具体的な数については実際の測定に応じて開けられてもよく、特に限定するもので
はなく、本実施例では、土壌サンプルの異なる部位の温度を測定する６個の測定孔５４０
及び土壌サンプルの異なる部位の圧力を測定する３つの測定孔５４０が開けられる。
Example 6
As shown in FIG. 5, as compared with the first embodiment, the auxiliary means 5 is further provided, and the auxiliary means 5 includes a mounting
The
The measurement holes 540 are used to measure the temperature and pressure of different parts of the soil sample, and the specific number may be opened according to the actual measurement, and the specific number is not particularly limited. In the example, 6 measuring
And three measuring
実験例
１）青海チベット高原の北麓河区域のある青海-チベット鉄道の沿線で実地テストを行い
、具体的には、本実施例１～５の装置及びある凍土間隙水圧測定デバイスを用いて、同一
検出点（このテスト点のプローブの埋め位置はシルト質粘土、埋め深さは２０ｃｍ、温度
は－１．０℃、含水量は９８％）を複数回検出し、１０バッチのデータをランダムに記録
し、この地点でサンプリングした後、本実施例６の装置を用いて複数回測定し、１０組の
データをランダムに記録し、具体的な測定結果を表１に示す。
表１：本実施例１～６の装置及び対照群で測定した凍土間隙水圧の値
Experimental Example 1) A field test was conducted along the Qinghai-Tibet Railway, which is located in the northern foot of the Qinghai-Tibetan Plateau. The same detection point (the probe filling position at this test point is silty clay, the filling depth is 20 cm, the temperature is -1.0 ° C, and the water content is 98%) is detected multiple times, and 10 batches of data are randomly detected. After recording and sampling at this point, measurements were made multiple times using the apparatus of Example 6, and 10 sets of data were randomly recorded, and specific measurement results are shown in Table 1.
Table 1: Values of frozen soil pore water pressure measured by the devices of Examples 1 to 6 and the control group.
結論：表１のデータから分かるように、従来技術に比べて、本発明の実施例１～６の装置
は、凍土間隙水圧をテストするときに安定性に優れている。
２）青海チベット高原の北麓河区域のある青海-チベット鉄道の沿線の土壌サンプルにつ
いて室内テストを行い、具体的には、本発明の実施例１～５の装置及びある凍土間隙水圧
測定デバイスを用いて、土壌サンプルパラメータを変えて、バッチごとに測定を行い（土
壌サンプル温度（＞－１０℃）、飽和度（１００％～５％）、負荷（＜３ＭＰａ）である
変数パラメータを変える）、表２に示すような測定範囲の表を得る。
表２：本発明の実施例１～５の装置及び土壌サンプルパラメータを変えた後の対照群の測
定範囲の値
CONCLUSIONS: As can be seen from the data in Table 1, the devices of Examples 1-6 of the present invention are more stable when testing frozen soil pore water pressure than in the prior art.
2) An indoor test was conducted on soil samples along the Qinghai-Tibet Railway, which is located in the northern foot of the Qinghai-Tibetan Plateau. Specifically, the devices of Examples 1 to 5 of the present invention and a certain frozen soil pore water pressure measuring device were used. Using, the soil sample parameters are changed and measurements are made batch by batch (soil sample temperature (> -10 ° C), saturation (100% -5%), load (<3 MPa) variable parameters changed). Obtain a table of measurement ranges as shown in Table 2.
Table 2: Values in the measurement range of the control group after changing the apparatus and soil sample parameters of Examples 1 to 5 of the present invention.
結論：表２のデータから分かるように、従来技術に比べて、本発明の実施例１～５の装置
は、測定量程が大きい。
Conclusion: As can be seen from the data in Table 2, the devices of Examples 1 to 5 of the present invention have a larger measurement amount than the prior art.
Claims (7)
着ベース（１）に装着されるとともに、上端が媒体基部（２）に可動に接続される浸透基
部（３）とを含む凍土間隙水圧変化の測定装置であって、
前記装着ベース（１）は、装着ヘッド（１０１）が上端に設けられる装着台座（１１）と
、装着台座（１１）の上面の中心に嵌設される圧力センサ（１２）とを含み、前記装着ヘ
ッド（１０１）の内側に第１の装着溝（１０２）が設けられ、
前記媒体基部（２）は、上端に浸透溝（２０１）が設けられ、下端に圧力測定溝（２０２
）が設けられる媒体台座（２１）と、媒体台座（２１）に設けられ、且つ上部ポートが浸
透溝（２０１）と連通し、下部ポートが圧力測定溝（２０２）と連通する媒体槽配管（２
２）とを含み、
前記浸透基部（３）は、上端に収容溝（３０１）が設けられ、下端に第２の装着溝（３０
２）が設けられる浸透台座（３１）と、収容溝（３０１）内に装着される浸透ヘッド（３
２）とを含み、
前記浸透台座（３１）の下端は第２の装着溝（３０２）、装着ヘッド（１０１）を介して
装着台座（１１）に可動装着され、前記媒体台座（２１）の下端は圧力測定溝（２０２）
の側壁、第１の装着溝（１０２）を介して装着台座（１１）に可動装着され、且つ媒体台
座（２１）は浸透台座（３１）の内部に位置し、媒体台座（２１）の上端の外側壁は浸透
台座（３１）の内側壁に可動接続され、前記浸透ヘッド（３２）の下端は浸透溝（２０１
）に嵌め込まれ、前記圧力センサ（１２）の上端は圧力測定溝（２０２）に嵌め込まれ、
前記媒体台座（２１）と装着台座（１１）の接続箇所と、媒体台座（２１）と浸透台座（
３１）の接続箇所とのいずれにもシールモジュール（４）が設けられ、
前記媒体槽配管（２２）の内径が０．０５～０．０８ｍｍであり、且つ媒体槽配管（２２
）は親水性材料を用い、媒体槽配管（２２）内に界面水が充填されている、
ことを特徴とする凍土間隙水圧変化の測定装置。 The mounting base (1), the medium base (2) whose lower end is mounted on the mounting base (1), the lower end is mounted on the mounting base (1), and the upper end is movably connected to the medium base (2). It is a measuring device for measuring the change in water pressure in the frozen soil pores including the permeation base (3).
The mounting base (1) includes a mounting pedestal (11) on which a mounting head (101) is provided at an upper end, and a pressure sensor (12) fitted in the center of the upper surface of the mounting pedestal (11). A first mounting groove (102) is provided inside the head (101), and the first mounting groove (102) is provided.
The medium base portion (2) is provided with a permeation groove (201) at the upper end and a pressure measurement groove (202) at the lower end.
) Is provided in the medium pedestal (21), and the medium tank pipe (2) is provided in the medium pedestal (21) and has an upper port communicating with the permeation groove (201) and a lower port communicating with the pressure measuring groove (202).
2) including
The permeation base portion (3) is provided with an accommodating groove (301) at the upper end and a second mounting groove (30) at the lower end.
The permeation pedestal (31) provided with 2) and the permeation head (3) mounted in the accommodating groove (301).
2) including
The lower end of the permeation pedestal (31) is movably mounted on the mounting pedestal (11) via the second mounting groove (302) and the mounting head (101), and the lower end of the medium pedestal (21) is the pressure measuring groove (202). )
It is movably mounted on the mounting pedestal (11) via the side wall and the first mounting groove (102), and the medium pedestal (21) is located inside the permeation pedestal (31) and is located on the upper end of the medium pedestal (21). The outer side wall is movably connected to the inner side wall of the permeation pedestal (31), and the lower end of the permeation head (32) is a permeation groove (201).
), And the upper end of the pressure sensor (12) is fitted into the pressure measuring groove (202).
The connection point between the medium pedestal (21) and the mounting pedestal (11), and the medium pedestal (21) and the penetration pedestal (
A seal module (4) is provided at each of the connection points of 31).
The inner diameter of the medium tank pipe (22) is 0.05 to 0.08 mm, and the medium tank pipe (22) has an inner diameter of 0.05 to 0.08 mm.
) Uses a hydrophilic material, and the medium tank pipe (22) is filled with interfacial water.
A device for measuring changes in frozen soil pore water pressure.
台座（１１）の接続箇所と、媒体台座（２１）と浸透台座（３１）の接続箇所とのいずれ
にも、前記シールモジュール（４）を係止するためのシール係止溝が設けられている、
ことを特徴とする請求項１に記載の装置。 The seal module (4) is a seal pad, and can be used at any of the connection points between the medium pedestal (21) and the mounting pedestal (11) and the connection points between the medium pedestal (21) and the penetration pedestal (31). , A seal locking groove for locking the seal module (4) is provided.
The apparatus according to claim 1.
接続され、前記シールモジュール（４）は、ネジに塗布された嫌気性接着剤である、
ことを特徴とする請求項１に記載の装置。 The medium pedestal (21) is connected to each of the mounting pedestal (11) and the permeation pedestal (31) with screws, and the seal module (4) is an anaerobic adhesive applied to the screws.
The apparatus according to claim 1.
ことを特徴とする請求項１に記載の装置。 A seal layer is provided on the entire exposed portion of the mounting pedestal (11) and the permeation pedestal (31).
The apparatus according to claim 1.
ングは、ナノＴｉＯ２コーティングである、
ことを特徴とする請求項１に記載の装置。 A super-hydrophilic coating is provided on the inner wall of the medium tank pipe (22), and the super-hydrophilic coating is a nano-TiO2 coating.
The apparatus according to claim 1.
前記補助手段（５）は、装着ベース（５１）と、装着ベース（５１）に装着されて箱体（
５２）を構成する板材（５２０）と、装着ベース（１）に装着されるサンプル収容ユニッ
トとを含み、前記サンプル収容ユニットは、装着ベース（５１）に装着される底部密閉板
（５３）と、底端が底部密閉板（５３）に可動接続され、測定対象土壌サンプルを収容す
るための試料収容管（５４）と、箱体（５２）の頂部に装着され、試料収容管（５４）の
頂部に可動接続され、且つ内部に凍結液コイルが巻設された頂部密閉板（５５）と、底部
密閉板（５３）と頂部密閉板（５５）の温度をそれぞれ制御する２組の凍結液サイクル温
度制御部材とを含み、
前記試料収容管（５４）の側壁に測定孔（５４０）が開けられている、
ことを特徴とする請求項１に記載の装置。 Including auxiliary means (5)
The auxiliary means (5) is mounted on a mounting base (51) and a box body (51).
The plate material (520) constituting the mounting base (52) and the sample accommodating unit mounted on the mounting base (1) are included, and the sample accommodating unit includes a bottom sealing plate (53) mounted on the mounting base (51). The bottom end is movably connected to the bottom sealing plate (53), and is attached to the sample storage tube (54) for accommodating the soil sample to be measured and the top of the box body (52), and the top of the sample storage tube (54). Two sets of freezing liquid cycle temperatures that control the temperature of the top sealing plate (55), which is movably connected to the top sealing plate and the freezing liquid coil is wound inside, and the bottom sealing plate (53) and the top sealing plate (55), respectively. Including control members
A measurement hole (540) is formed in the side wall of the sample storage tube (54).
The apparatus according to claim 1.
らに含む、
ことを特徴とする請求項６に記載の装置。 The auxiliary means (5) further includes a water replenishing device for replenishing water to the inside of the sample accommodating tube (54).
The apparatus according to claim 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110948400.5 | 2021-08-18 | ||
| CN202110948400.5A CN113739984B (en) | 2021-08-18 | 2021-08-18 | Device for measuring pore water pressure change of frozen soil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP7037024B1 true JP7037024B1 (en) | 2022-03-16 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011231568A (en) | 2010-04-30 | 2011-11-17 | Maruyama Kogyo Co Ltd | Pore water pressure measuring device, soft ground improvement method using the same, method for determining dynamic state of ground for underground installation, and method for determining dynamic state of ground for banking structure installation |
| CN202599591U (en) | 2012-04-18 | 2012-12-12 | 苏州筑邦测控科技有限公司 | Pore water pressure measuring device |
| CN102879148A (en) | 2012-10-10 | 2013-01-16 | 基康仪器(北京)有限公司 | Device and method for measuring frozen soil pore water pressure |
| JP2017101436A (en) | 2015-12-01 | 2017-06-08 | 株式会社安藤・間 | Earth water pressure-shear force measurement sensor |
| CN110118628A (en) | 2019-05-28 | 2019-08-13 | 中国科学院寒区旱区环境与工程研究所 | Frozen soil pore water pressure measurement device |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4453401A (en) * | 1982-03-12 | 1984-06-12 | The United States Of America As Represented By The Secretary Of The Air Force | Pressure sensor and soil stress isolation filter arrangement in a pore pressure probe |
| JP3500945B2 (en) * | 1998-01-19 | 2004-02-23 | 株式会社日立製作所 | Multispectral satellite image processing method and processing system, and hydrosphere evaluation method |
| JP2003279415A (en) * | 2002-03-20 | 2003-10-02 | Oyo Corp | Remote examination method for types and distribution of wastes |
| JP4452793B2 (en) * | 2004-04-26 | 2010-04-21 | 株式会社エヌ・ティ・ティ・データ | Illegal dumping point detection device, method, and program |
| JP5304465B2 (en) * | 2009-06-16 | 2013-10-02 | 朝日航洋株式会社 | Mosaic image generation method, apparatus and program |
| JP5458380B2 (en) * | 2009-11-09 | 2014-04-02 | 国立大学法人岩手大学 | Image processing apparatus and method |
| CN103512699A (en) * | 2012-06-21 | 2014-01-15 | 中国科学院寒区旱区环境与工程研究所 | Device for measuring pore water pressure in frozen soil |
| JP6208076B2 (en) * | 2014-05-12 | 2017-10-04 | 株式会社日立製作所 | Image processing apparatus, image processing method, and recording medium recording program |
| CN106841000B (en) * | 2017-01-12 | 2019-12-27 | 四川大学 | Sample assembly for radial permeability test of ultra-low permeability rock and test method thereof |
| CN107169653A (en) * | 2017-05-12 | 2017-09-15 | 江苏警官学院 | The method that land used for urban and rural construction projects extending space detail characteristic is analyzed based on GWR |
| CN107421679A (en) * | 2017-08-15 | 2017-12-01 | 中国科学院寒区旱区环境与工程研究所 | A kind of test probe for being used to monitor frozen soil Pore Pressure |
| CN110068415B (en) * | 2018-07-11 | 2024-04-02 | 内蒙古大学 | Device and method for measuring pore water pressure and ice pressure in normal frozen soil |
| CN110672497A (en) * | 2019-11-08 | 2020-01-10 | 宁夏大学 | Multifunctional infiltration piping tester |
| CN111062351B (en) * | 2019-12-24 | 2023-12-22 | 中国矿业大学 | Method for identifying site features of coal mining area by means of satellite/airborne image data fusion |
| CN112115198B (en) * | 2020-09-14 | 2024-03-15 | 宁波市测绘和遥感技术研究院 | Urban remote sensing intelligent service platform |
| AU2020104274A4 (en) * | 2020-12-23 | 2021-03-11 | Hebei University Of Engineering | An instrument for measuring soil permeability coefficient under the action of freeze-thaw cycle |
| CN112966925B (en) * | 2021-03-02 | 2021-11-19 | 哈尔滨工业大学 | Village and town rubbish increment risk analysis system based on remote sensing time sequence change analysis |
| CN113392788B (en) * | 2021-06-23 | 2022-11-01 | 中国科学院空天信息创新研究院 | Construction waste identification method and device |
-
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- 2021-08-18 CN CN202110948400.5A patent/CN113739984B/en active Active
- 2021-12-27 JP JP2021213555A patent/JP7037024B1/en active Active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011231568A (en) | 2010-04-30 | 2011-11-17 | Maruyama Kogyo Co Ltd | Pore water pressure measuring device, soft ground improvement method using the same, method for determining dynamic state of ground for underground installation, and method for determining dynamic state of ground for banking structure installation |
| CN202599591U (en) | 2012-04-18 | 2012-12-12 | 苏州筑邦测控科技有限公司 | Pore water pressure measuring device |
| CN102879148A (en) | 2012-10-10 | 2013-01-16 | 基康仪器(北京)有限公司 | Device and method for measuring frozen soil pore water pressure |
| JP2017101436A (en) | 2015-12-01 | 2017-06-08 | 株式会社安藤・間 | Earth water pressure-shear force measurement sensor |
| CN110118628A (en) | 2019-05-28 | 2019-08-13 | 中国科学院寒区旱区环境与工程研究所 | Frozen soil pore water pressure measurement device |
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| CN113739984A (en) | 2021-12-03 |
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