JP2788944B2 - Simultaneous measurement of settlement amount and groundwater level by embankment - Google Patents
Simultaneous measurement of settlement amount and groundwater level by embankmentInfo
- Publication number
- JP2788944B2 JP2788944B2 JP14273589A JP14273589A JP2788944B2 JP 2788944 B2 JP2788944 B2 JP 2788944B2 JP 14273589 A JP14273589 A JP 14273589A JP 14273589 A JP14273589 A JP 14273589A JP 2788944 B2 JP2788944 B2 JP 2788944B2
- Authority
- JP
- Japan
- Prior art keywords
- measuring
- embankment
- pipe
- groundwater level
- pipes
- 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
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、盛土の層別沈下量と地下水位を同時に計測
するための計測装置に関する。Description: TECHNICAL FIELD The present invention relates to a measuring device for simultaneously measuring a stratified subsidence amount of an embankment and a groundwater level.
［従来の技術］ 従来、盛土の層別沈下量と地下水位を計測する場合に
は、第３図に示すように、層別沈下量は、計測する層厚
ピッチｐ毎に盛土１内に埋設される沈下板２と、この沈
下板２のレベルを地表から測定するための測定用ロッド
３とからなる層別沈下計により測定し、地下水位は、水
位検知管４または間隙水圧計５を設置して計測してい
る。[Prior Art] Conventionally, when measuring the amount of subsidence and the groundwater level of an embankment, as shown in FIG. 3, the amount of subsidence by stratification is buried in the embankment 1 for each layer thickness pitch p to be measured. The level of the submerged plate 2 is measured by a stratified subsidence meter composed of a measuring rod 3 for measuring the level of the submerged plate 2 from the ground surface, and the groundwater level is provided with a water level detecting pipe 4 or a pore water pressure gauge 5. And measuring.
しかしながら上記従来の計測方式においては、盛土場
所に層別沈下計、水位検知管または間隙水圧計からなる
多数の計測機器の端子やロッドが林立するため、土木工
事の妨げになるという問題を有している。また、一つの
計測項目毎に全く別の計測機器を盛土中に設置しなけれ
ばならないため、作業時間およびコストが増大するとい
う問題を有している。However, the conventional measuring method described above has a problem that the terminal and rods of a large number of measuring devices including a stratified sediment gauge, a water level detecting pipe or a pore water pressure gauge stand in the embankment area, which hinders civil engineering work. ing. In addition, since a completely different measuring device must be installed in the embankment for each measurement item, there is a problem that the working time and cost increase.
本発明の目的は、上記問題を解決するものであって、
設置点１箇所に設置した計測装置で、盛土の層別沈下量
と地下水位を計測することを可能にすることである。An object of the present invention is to solve the above problems,
The purpose of the present invention is to make it possible to measure the subsidence amount and the groundwater level of the embankment by a measuring device installed at one installation point.
そのために本発明の盛土の層別沈下量と地下水位の同
時計測装置は、複数の測定用パイプ11、11′と、これら
測定用パイプ間に移動自在に連結された連結用パイプ12
と、前記測定用パイプに設けられた測定リング13及びこ
の測定リングの水平方向に固定されたクロスアーム15
と、前記測定用パイプ及び連結用パイプに形成された複
数の孔17とを備え、前記測定用パイプ及び連結用パイプ
内に、測定リングの位置を検出する検出素子と地下水位
を検出する検出素子を降下させることを特徴とする。For this purpose, the apparatus for simultaneously measuring the amount of settlement of each embankment and the groundwater level of the embankment of the present invention comprises a plurality of measurement pipes 11 and 11 ′ and a connection pipe 12 movably connected between these measurement pipes.
A measuring ring 13 provided on the measuring pipe and a cross arm 15 fixed to the measuring ring in a horizontal direction.
And a plurality of holes 17 formed in the measurement pipe and the connection pipe, and a detection element for detecting a position of a measurement ring and a detection element for detecting a groundwater level in the measurement pipe and the connection pipe. Is lowered.
なお、上記構成に付加した番号は、理解を容易にする
ために図面と対比させるためのもので、これにより本発
明の構成が限定されるものではない。The numbers added to the above configuration are for comparison with the drawings for easy understanding, and do not limit the configuration of the present invention.
本発明においては、例えば、第１図及び第２図に示す
ように、層別沈下量を検出する場合には、目盛付コード
の先端に取付けたプローブ（検出素子）を測定用パイプ
11内に降下させ、プローブが、各深度のクロスアーム15
の下部に設けた測定リング13の位置に達すると、測定用
パイプ11の鉄と測定リング13のアルミとの電位差を利用
して電磁誘導によって発生した電流を指示計により検出
し、その位置を目盛付コードで読み取る。また、地下水
位を計測する場合には、測定用パイプ11、11′及び連結
用パイプ12内に電極（検出素子）20を降下させ、地下水
位に達した点で盛土１上に出ている測定用パイプ11の上
端部で目盛付コード19の目盛りを読み取る。In the present invention, for example, as shown in FIG. 1 and FIG. 2, when detecting the amount of settlement by layer, a probe (detection element) attached to the tip of a scaled cord is used for a measuring pipe.
Lower the probe into the cross arm 15 at each depth.
When it reaches the position of the measuring ring 13 provided at the lower part of the gauge, the indicator detects the current generated by electromagnetic induction using the potential difference between the iron of the measuring pipe 11 and the aluminum of the measuring ring 13 and graduates the position. Read with attached code. When the groundwater level is measured, the electrode (detection element) 20 is dropped into the measuring pipes 11 and 11 'and the connecting pipe 12, and the measurement is performed on the embankment 1 when the groundwater level is reached. The scale of the scaled code 19 is read at the upper end of the service pipe 11.
以下、本発明の実施例を図面を参照しつつ説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図（ａ）は、本発明における盛土の層別沈下量と
地下水位の同時計測装置の１実施例を示す部分斜視図、
第１図（ｂ）は測定リング部の側面図である。FIG. 1 (a) is a partial perspective view showing one embodiment of a device for simultaneously measuring the amount of settlement of each embankment and the level of groundwater in the present invention,
FIG. 1 (b) is a side view of the measuring ring portion.
盛土内に埋設される同時計測装置10は、上下の測定用
パイプ11、11′とこれら測定用パイプ11、11′を連結す
るための連結用パイプ12からなる。これらパイプは鉄等
の導電率が大きい材料が使用される。なお、図では２本
の測定用パイプが示されているが、［（盛土厚／計測す
る層厚ｐ）＋１］の測定用パイプを連結用パイプ12によ
り連結する。The simultaneous measuring device 10 embedded in the embankment includes upper and lower measuring pipes 11, 11 'and a connecting pipe 12 for connecting the measuring pipes 11, 11'. These pipes are made of a material having a high conductivity, such as iron. Although two pipes for measurement are shown in the figure, the pipes for measurement of [(filler thickness / layer thickness to be measured p) +1] are connected by the connection pipe 12.
測定用パイプ11、11′には、略中央部にアルミまたは
ステンレス等の導電率が小さい材料からなる測定リング
13が設けられ、この測定リング13の上端に接して水平方
向にクロスアーム15が、Ｕ字ボルト14により固定され、
また、測定用パイプ11、11′の上下にはリングゴム16が
固定されている。連結用パイプ12は、上下の測定用パイ
プ11、11′のリングゴム16に圧入され、盛土の沈下に応
じて上下の測定用パイプ11、11′が移動するように連結
されている。このとき、上下の測定用パイプ11、11′の
クロスアーム15は、互いに90゜向きが異なるように配置
すると、盛土転圧が均一にできやすい。A measuring ring made of a material with low conductivity, such as aluminum or stainless steel, is provided at the approximate center of the measuring pipes 11 and 11 '.
13 is provided, a cross arm 15 is fixed to the upper end of the measurement ring 13 in the horizontal direction by a U-shaped bolt 14,
A ring rubber 16 is fixed above and below the measurement pipes 11, 11 '. The connecting pipe 12 is press-fitted into the ring rubber 16 of the upper and lower measuring pipes 11, 11 ', and is connected so that the upper and lower measuring pipes 11, 11' move in accordance with the settlement of the embankment. At this time, if the cross arms 15 of the upper and lower measurement pipes 11 and 11 'are arranged so as to be different from each other by 90 [deg.], The embankment rolling pressure can be easily made uniform.
さらに、測定用パイプ11、11′及び連結用パイプ12に
は、10cm〜1m毎に５〜20mm程度の孔17を形成し、この孔
17に土砂が流入しないように、メッシュスクリーンを取
付け孔17を通って地下水が自由に出入りできるようにし
ている。Further, the measuring pipes 11 and 11 'and the connecting pipe 12 are formed with holes 17 of about 5 to 20 mm every 10 cm to 1 m.
A mesh screen is provided so that groundwater can freely enter and exit through the mounting holes 17 so that sediment does not flow into 17.
上記構成からなる本発明の同時計測装置の計測方法に
ついて説明する。A measuring method of the simultaneous measuring device of the present invention having the above configuration will be described.
盛土の層別沈下量を測定する場合には、目盛付コード
の先端に取付けたプローブ（検出素子）を測定用パイプ
11内に降下させる。プローブが、各深度のクロスアーム
15の下部に設けた測定リング13の位置に達すると、測定
用パイプ11の鉄と測定リング13のアルミとの電位差を利
用して電磁誘導によって発生した電流を指示計により検
出し、その位置を目盛付コードで読み取る。When measuring the amount of settlement of the embankment by layer, a probe (detection element) attached to the tip of
Drop into 11. Probe is cross arm at each depth
When reaching the position of the measuring ring 13 provided at the lower part of 15, the current generated by electromagnetic induction is detected by the indicator using the potential difference between the iron of the measuring pipe 11 and the aluminum of the measuring ring 13, and the position is detected. Read with scale code.
また、地下水位を計測する場合には、第２図に示すよ
うに、目盛付コード19の先端に電極20を接続した電極式
水位検知機器21を使用し、測定用パイプ11、11′及び連
結用パイプ12内に電極（検出素子）20を降下させ、地下
水位に達した点で盛土１上に出ている測定用パイプ11の
上端部で目盛付コード19の目盛りを読み取る。In order to measure the groundwater level, as shown in FIG. 2, an electrode type water level detecting device 21 having an electrode 20 connected to the end of a scaled cord 19 is used, and measurement pipes 11, 11 'and connected The electrode (detection element) 20 is lowered into the measuring pipe 12, and the scale of the scaled code 19 is read at the upper end portion of the measuring pipe 11 which is projected on the embankment 1 when the groundwater level is reached.
以上のように本発明によれば、設置点１箇所に設置し
た計測装置で、盛土の層別地下量と地下水位を計測する
ことができるため、盛土場所に層別沈下計、水位検知管
または間隙水圧計からなる多数の計測機器の端子やロッ
ドが林立することがなく、土木工事の妨げになることが
ない。また、作業時間およびコストを低減することがで
きる。As described above, according to the present invention, a stratified subsidence meter, a water level detection pipe or The terminals and rods of a large number of measuring instruments, such as pore water pressure gauges, do not stand and do not hinder civil works. Further, working time and cost can be reduced.
第１図（ａ）は、本発明における盛土の層別沈下量と地
下水位の同時計測装置の１実施例を示す部分斜視図、第
１図（ｂ）は測定リング部の側面図、第２図は地下水位
の計測方法を説明するための図、第３図は従来の盛土の
層別沈下量と地下水位の計測方法を説明するための図で
ある。 11、11′……測定用パイプ、12……連結用パイプ、13…
…測定リング、15……クロスアーム、17……孔。FIG. 1 (a) is a partial perspective view showing an embodiment of a device for simultaneously measuring the amount of settlement of each embankment and the groundwater level according to the present invention, FIG. 1 (b) is a side view of a measuring ring portion, and FIG. Fig. 3 is a diagram for explaining a method of measuring a groundwater level, and Fig. 3 is a diagram for explaining a conventional method of measuring the amount of settlement by stratum and the groundwater level of an embankment. 11, 11 '... pipe for measurement, 12 ... pipe for connection, 13 ...
... Measurement ring, 15 ... Cross arm, 17 ... Hole.
フロントページの続き (72)発明者 阪口 雄敏 東京都中央区京橋２丁目16番１号 清水 建設株式会社内 (56)参考文献 特開 昭60−253694（ＪＰ，Ａ) 実開 昭58−177830（ＪＰ，Ｕ) 特公 昭44−1038（ＪＰ，Ｂ１)Continuation of the front page (72) Inventor Taketoshi Sakaguchi 2-16-1 Kyobashi, Chuo-ku, Tokyo Shimizu Construction Co., Ltd. (JP, U) JP-B44-1038 (JP, B1)
Claims (1)
プ間に移動自在に連結された連結用パイプと、前記測定
用パイプに設けられた測定リング及びこの測定リングの
水平方向に固定されたクロスアームと、前記測定用パイ
プ及び連結用パイプに形成された複数の孔とを備え、前
記測定用パイプ及び連結用パイプ内に、測定リングの位
置を検出する検出素子と地下水位を検出する検出素子を
降下させることを特徴とする盛土の層別沈下量と地下水
位の同時計測装置。1. A plurality of measuring pipes, a connecting pipe movably connected between the measuring pipes, a measuring ring provided on the measuring pipe, and a measuring ring fixed in a horizontal direction of the measuring ring. A cross-arm, a plurality of holes formed in the measuring pipe and the connecting pipe, and a detecting element for detecting a position of a measuring ring and a detecting means for detecting a groundwater level in the measuring pipe and the connecting pipe. Simultaneous measurement of landfill subsidence and groundwater level, characterized by lowering the element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14273589A JP2788944B2 (en) | 1989-06-05 | 1989-06-05 | Simultaneous measurement of settlement amount and groundwater level by embankment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14273589A JP2788944B2 (en) | 1989-06-05 | 1989-06-05 | Simultaneous measurement of settlement amount and groundwater level by embankment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH039217A JPH039217A (en) | 1991-01-17 |
| JP2788944B2 true JP2788944B2 (en) | 1998-08-20 |
Family
ID=15322361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14273589A Expired - Fee Related JP2788944B2 (en) | 1989-06-05 | 1989-06-05 | Simultaneous measurement of settlement amount and groundwater level by embankment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2788944B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284054B1 (en) * | 2011-07-22 | 2013-07-10 | 한국지질자원연구원 | Mini Piezometer |
| KR200491669Y1 (en) * | 2019-08-30 | 2020-05-15 | 주식회사 다올엔지니어링 | Devcie for measuring underground water level and underground subsidence |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0797005B2 (en) * | 1991-11-07 | 1995-10-18 | 株式会社自動制御技術研究所 | Vertical displacement measuring device in the ground |
| JP5474578B2 (en) * | 2010-01-12 | 2014-04-16 | 公益財団法人鉄道総合技術研究所 | Subsidence measurement method in the ground |
| CN103984380B (en) * | 2014-05-29 | 2016-08-24 | 鸡西市天合科技有限公司 | Rice terrace is shallow, wet, solid carbon dioxide amount Monitoring and Controlling instrument |
-
1989
- 1989-06-05 JP JP14273589A patent/JP2788944B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101284054B1 (en) * | 2011-07-22 | 2013-07-10 | 한국지질자원연구원 | Mini Piezometer |
| KR200491669Y1 (en) * | 2019-08-30 | 2020-05-15 | 주식회사 다올엔지니어링 | Devcie for measuring underground water level and underground subsidence |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH039217A (en) | 1991-01-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |