JP2806266B2 - Groundwater sampling and flow measurement equipment - Google Patents
Groundwater sampling and flow measurement equipmentInfo
- Publication number
- JP2806266B2 JP2806266B2 JP16948394A JP16948394A JP2806266B2 JP 2806266 B2 JP2806266 B2 JP 2806266B2 JP 16948394 A JP16948394 A JP 16948394A JP 16948394 A JP16948394 A JP 16948394A JP 2806266 B2 JP2806266 B2 JP 2806266B2
- Authority
- JP
- Japan
- Prior art keywords
- groundwater
- flow
- flow measurement
- groundwater sampling
- sampling
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Geophysics And Detection Of Objects (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、地下水の流向、流速の
測定と同時に、地下水を採取する装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for measuring groundwater flow direction and flow velocity and, at the same time, collecting groundwater.
【０００２】[0002]
【従来の技術】一般に地下水調査、特に土壌或いは地下
汚染の浄化技術に関して、汚染地下水の採取並びに地下
水流動の測定が、不可欠である。2. Description of the Related Art In general, with respect to groundwater surveys, in particular, techniques for purifying soil or underground pollution, it is essential to collect contaminated groundwater and measure groundwater flow.
【０００３】従来、地下水の採取は、採取壜を井戸内に
吊下げて採取する方法や、所定深度にホースを下ろし、
ポンプで汲み上げる方法があった。又地下水の流動の測
定方法には、単孔式で装置を井戸内に下ろし測定する方
法や、地下水位の勾配や逆水係数より求める方法或い
は、特公昭60-27388号で提案されている中性子水分計と
トレーサを用いて、その移動状況より求める方法等があ
った。Conventionally, groundwater has been collected by suspending a sampling bottle in a well and collecting the groundwater.
There was a method of pumping. Groundwater flow can be measured by dropping the device into a well using a single-hole method, by measuring from the groundwater level gradient or reverse water coefficient, or by the neutron moisture proposed in Japanese Patent Publication No. 60-27388. There was a method using a meter and a tracer to determine the movement status.
【０００４】[0004]
【発明の解決しようとする課題】前述の従来の技術で
は、地下水採取の技術と地下水流動測定の技術は、それ
ぞれが独立しており、測定時間に時系列的な関連がな
く、特に汚染地盤での汚染地下水の汚染度や流動状況等
が時々刻々と変化する状況下では同一時点でのそれぞれ
の測定値の評価が困難であった。そこで本発明では、所
定位置に下ろした装置により地下水を採取し、装置を引
き上げることなく即地下水の流動測定も出来る装置を提
供する。In the above-mentioned conventional technology, the technology of groundwater sampling and the technology of groundwater flow measurement are independent of each other, and have no chronological relationship with the measurement time. It was difficult to evaluate each measurement value at the same time under the situation where the pollution degree and the flow condition of the polluted groundwater changed every moment. Therefore, the present invention provides an apparatus that collects groundwater using an apparatus that has been lowered to a predetermined position and can immediately measure the flow of groundwater without raising the apparatus.
【０００５】[0005]
【課題を解決するための手段】中性子水分計を応用した
地下水採取・流動測定装置に於いて、トレーサー圧送管
口から分岐して、負圧を賦課し、地下水を汲み上げる手
段を設けたことを特徴とする。[Means for Solving the Problems] In a groundwater sampling and flow measuring apparatus to which a neutron moisture meter is applied, a means for branching from a tracer pressure feed port, imposing a negative pressure, and pumping groundwater is provided. And
【０００６】[0006]
【実施例】図１は実施例を示す。従来の、中性子水分計
を応用した地下水流動測定装置１を測定しようとする地
盤を窄孔して、挿下した図である。ストレーナーパイプ
２と窄孔との間隙には、地下水の整流のためフィルタ材
３が充填してある。指向性中性子水分計４は上部エアパ
ッカ５ａと下部エアパッカ５ｂとを連結する円筒形の支
柱６に収められ、ロッド１４を介して指向制御装置１５
によって指向性が制御されるようになっている。エアパ
ッカ５ａ、５ｂは地上のパッカ作動装置７で送排気され
ストレーナパイプ２に圧着し指向性中性子水分計４を自
由に固定したり、ストレーナパイプ２より収縮して中性
子水分計４の位置を動かせるようにすることが出来る。
指向性中性子水分計４は、地上のデジタルカウントレー
トメータ８と接続してあり、トレーサ９の指向性中性子
水分計４に於ける濃度解析を行う。上部エアパッカの下
部には、トレーサ（普通は、ほう素水溶液）９を放射す
る孔が設けてあり地上のトレーサ注入装置１０と管で連
結してある。該トレーサ注入装置１０の出口にチー管路
１１を設け、地下水採取壜１２を経由して真空ポンプ１
３に接続する。前記チー管路１１には切り換え弁を配
し、地下水採取壜１２に地下水を採取する場合は、真空
ポンプ１３側の管路が通ずるよう弁を開き、続いて流動
測定を行う時はトレーサ注入装置１０側に弁が開くよう
な構造になっている。FIG. 1 shows an embodiment. It is the figure which pierced the ground which measured the groundwater flow measuring device 1 to which the conventional neutron moisture meter was applied, and inserted it. The gap between the strainer pipe 2 and the narrow hole is filled with a filter material 3 for rectifying groundwater. The directional neutron moisture meter 4 is housed in a cylindrical column 6 connecting the upper air packer 5a and the lower air packer 5b.
The directivity is controlled by this. The air packers 5a and 5b are sent and exhausted by a packer operating device 7 on the ground, and are pressed against the strainer pipe 2 to freely fix the directional neutron moisture meter 4, or to contract from the strainer pipe 2 to move the position of the neutron moisture meter 4. It can be.
The directional neutron moisture meter 4 is connected to a digital count rate meter 8 on the ground, and performs a concentration analysis in the directional neutron moisture meter 4 of the tracer 9. A hole for emitting a tracer (usually, an aqueous boron solution) 9 is provided below the upper air packer, and is connected to a tracer injection device 10 on the ground by a pipe. A Qi pipe 11 is provided at the outlet of the tracer injection device 10, and a vacuum pump 1 is connected via a groundwater sampling bottle 12.
Connect to 3. A switching valve is provided in the Qi pipe 11, and when collecting groundwater in the groundwater sampling bottle 12, the valve is opened so that the pipe on the side of the vacuum pump 13 can pass. The structure is such that the valve opens to the 10 side.
【０００７】[0007]
【発明の効果】本発明の効果は次の通りである。The effects of the present invention are as follows.
【０００８】（イ）本発明の装置による地下水の採水
は、空気に接触することなく採取出来るので、水質分析
の確実性が保証される。(A) Since the groundwater can be collected without coming into contact with the air, the reliability of the water quality analysis is guaranteed.
【０００９】（ロ）所定の深度毎に確実に採水出来る。(B) Water can be reliably collected at each predetermined depth.
【００１０】（ハ）採水後は、逆にトレーサを注入して
採水位置深度での地下水の流動測定（流動方向、流速の
測定）が出来る。汚染地盤での汚染地下水の汚染度や流
動状況等が時々刻々と変化する状況下で、同一時点での
それぞれの測定値の評価が容易になった。(C) After the water sampling, the flow of the groundwater at the depth of the water sampling position (measurement of the flow direction and the flow velocity) can be measured by injecting a tracer. Under the situation where the degree of contamination and the flow state of the contaminated groundwater on the contaminated ground change every moment, it has become easier to evaluate each measurement value at the same time.
【図１】本発明の地下水採取・流動測定装置を、測定し
ようとする地盤を窄孔して、挿下した図である。FIG. 1 is a diagram showing a groundwater sampling / flow measurement device of the present invention in which a ground to be measured is pierced and inserted.
１・・・中性子水分計を応用した地下水流動測定装置、
２・・・ストレーナパイプ、３・・・フィルタ材、４・
・・指向性中性子水分計、５ａ・・・上部エアパッカ、
５ｂ・・・下部エアパッカ、６・・・円筒形支柱、７・
・・パッカ作動装置、８・・・デジタルカウントレート
メータ、９・・・トレーサ（ほう素水溶液）、１０・・
・トレーサ注入装置、１１・・・チー管路、１２・・・
採水壜、１３・・・真空ポンプ1 ... groundwater flow measurement device using a neutron moisture meter
2 ・ ・ ・ Strainer pipe, 3 ・ ・ ・ Filter material, 4 ・
..Directional neutron moisture meter, 5a ... upper air packer
5b: Lower air packer, 6: Cylindrical column, 7
..Packer operating device, 8 ... Digital count rate meter, 9 ... Tracer (boron aqueous solution), 10 ...
-Tracer injection device, 11 ... Chi line, 12 ...
Sampling bottle, 13 ... vacuum pump
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) G01P 13/00 G01V 9/02──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 6 , DB name) G01P 13/00 G01V 9/02
Claims (1)
動測定装置に於いて、トレーサ圧送管口から分岐して、
負圧を賦課し、地下水を汲み上げる手段を設けたことを
特徴とする地下水採取・流動測定装置。In a groundwater sampling and flow measuring apparatus to which a neutron moisture meter is applied, a branch from a tracer pumping port is provided.
A groundwater sampling and flow measuring device characterized by providing a means for applying a negative pressure and pumping groundwater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16948394A JP2806266B2 (en) | 1994-07-21 | 1994-07-21 | Groundwater sampling and flow measurement equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16948394A JP2806266B2 (en) | 1994-07-21 | 1994-07-21 | Groundwater sampling and flow measurement equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0835979A JPH0835979A (en) | 1996-02-06 |
| JP2806266B2 true JP2806266B2 (en) | 1998-09-30 |
Family
ID=15887380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16948394A Expired - Fee Related JP2806266B2 (en) | 1994-07-21 | 1994-07-21 | Groundwater sampling and flow measurement equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2806266B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010086562A (en) * | 2000-03-02 | 2001-09-13 | 조희남 | Depth section groundwater withdrawal control device of groundwater deep well |
| KR100905377B1 (en) * | 2007-06-25 | 2009-07-01 | 한국원자력연구원 | Apparatus for Observing Water Level Recovery |
| US7878239B2 (en) | 2008-11-26 | 2011-02-01 | Korea Atomic Energy Research Institute | Fluid collecting apparatus |
| CN106480931B (en) * | 2016-10-31 | 2022-04-26 | 清华大学 | Multifunctional underground water working well with hydraulic adjusting function |
| CN110907226B (en) * | 2019-10-23 | 2022-03-01 | 核工业北京化工冶金研究院 | Near liquid level ultra-deep sampling device and using method thereof |
-
1994
- 1994-07-21 JP JP16948394A patent/JP2806266B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0835979A (en) | 1996-02-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19980623 |
|
| LAPS | Cancellation because of no payment of annual fees |