JP3158168B2 - Recharge method - Google Patents
Recharge methodInfo
- Publication number
- JP3158168B2 JP3158168B2 JP34688092A JP34688092A JP3158168B2 JP 3158168 B2 JP3158168 B2 JP 3158168B2 JP 34688092 A JP34688092 A JP 34688092A JP 34688092 A JP34688092 A JP 34688092A JP 3158168 B2 JP3158168 B2 JP 3158168B2
- Authority
- JP
- Japan
- Prior art keywords
- well
- recharge
- recharge well
- turbidity
- water
- 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 - Lifetime
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、根切工事等において
揚水した地下水をリチャージ井戸に戻す際に実施される
リチャージ工法に係り、さらに云えば、懸濁物の濁度が
高い揚水は外部へ放流し、リチャージ井戸の復水能力を
自動制御によって維持管理するリチャージ工法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recharging method which is carried out when returning groundwater pumped during root excavation work or the like to a recharge well, and more particularly, pumping with high turbidity of suspended matter to the outside. The present invention relates to a recharging method for discharging and maintaining the condensing capacity of a recharge well by automatic control.
【０００２】[0002]
【従来の技術】建物の基礎工事等のために行なわれる根
切工事においては、地下水を揚水することによって地下
水位を下げ、ドライワークを可能にすることが一般に行
なわれる。一方、地下水を揚水することによって生ずる
周辺地盤の沈下、井戸の水位低下や枯渇などの被害を軽
減し又は未然に防止することを目的として、揚水された
地下水を近傍のリチャージ井戸を通じて地盤中へ戻す所
謂リチャージ工法（復水工法）も広く実施されている。2. Description of the Related Art In a root cutting work performed for a foundation work of a building or the like, it is a common practice to lower a groundwater level by pumping groundwater to enable dry work. On the other hand, for the purpose of reducing or preventing damage such as subsidence of the surrounding ground caused by pumping of groundwater, lowering of water levels and depletion of wells, etc., the pumped groundwater is returned to the ground through nearby recharge wells. The so-called recharge method (condensation method) is also widely practiced.
【０００３】[0003]
【本発明が解決しようとする課題】上記従来のリチャー
ジ工法は、リチャージ井戸の復水能力を自動制御によっ
て維持管理するものではなく、地下水に含まれる懸濁物
の濃度をたまに測定する程度であり、揚水と注水を必要
にまかせて行なっている。復水能力が低下したリチャー
ジ井戸の洗浄も定期的ではなく、適当に見はからいなが
ら行なって済ませているのが実情である。そのため、揚
水（地下水）中に混在する泥土等の懸濁物を含む当該地
下水をそのままリチャージ井戸内に注水している。リチ
ャージ井戸内の地下水に占める懸濁物の濁度が所定値を
超えたまま長らく使用すると、リチャージ井戸は目詰ま
りを起こし、復水能力が低下してリチャージ井戸として
の機能を果たさない。また、リチャージ井戸を定期的に
洗浄しない場合は、急激に地下水の懸濁物濃度が高くな
った場合にも対処できず、短期間で目詰まりを生じる。
その上、リチャージ井戸の周辺地盤の粒子移動がリチャ
ージ井戸内の目詰まりを一層助長することとなる。つま
り、一旦目詰まりを起こすと正常な状態には容易に戻り
にくく、これらの点が解決すべき課題となっている。The above-mentioned conventional recharging method does not maintain and control the condensing capacity of the recharge well by automatic control, but only measures the concentration of suspended solids contained in groundwater occasionally. , Pumping and pouring water as needed. In fact, cleaning of recharge wells with reduced condensate capacity is not performed regularly, but is performed appropriately. For this reason, groundwater containing suspended matter such as mud mixed with pumped water (groundwater) is directly injected into the recharge well. If the turbidity of the suspended matter in the groundwater in the recharge well exceeds a predetermined value and used for a long time, the recharge well is clogged, the condensing capacity is reduced, and the recharge well does not function. Also, if the recharge well is not cleaned regularly, it cannot cope with a sudden increase in the concentration of suspended matter in the groundwater, causing clogging in a short period of time.
In addition, the movement of particles in the ground surrounding the recharge well further promotes clogging in the recharge well. That is, once clogging occurs, it is difficult to return to a normal state easily, and these points are problems to be solved.
【０００４】したがって、本発明の目的は、一定濃度以
上の懸濁物を含む地下水は即座に外部へ放流すると共
に、リチャージ井戸を定期的に洗浄してリチャージ井戸
の復水能力を自動制御によって維持することを目的とす
るリチャージ工法を提供することにある。Therefore, an object of the present invention is to discharge groundwater containing suspended matter of a certain concentration or more immediately to the outside and to periodically clean the recharge well to maintain the condensing capacity of the recharge well by automatic control. An object of the present invention is to provide a recharging method for the purpose of doing so.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
の手段として、本発明に係るリチャージ工法は、揚水井
戸７から揚水された地下水２をリチャージ井戸３を通じ
て地盤４中へ戻すリチャージ工法において、揚水井戸７
の揚水ポンプ５から立上げられた揚水管６は、揚水中の
懸濁物の濁度を検出する濁度センサー付制御装置１、及
び切り替え弁８を経由してリチャージ井戸３に通ずる注
水管１０と接続し、前記切り替え弁８と濁度センサー付
制御装置１との中間部から排水管１１を分岐して設け、
濁度センサー付制御装置１により所定濁度以上の懸濁物
が検出されると切り替え弁８が閉止され懸濁物の濁度が
高い揚水は前記排水管１１を通じて外部に放流し、所定
濁度以下の揚水は注水管１０を通じてリチャージ井戸３
に戻すことを特徴とする。As a means for solving the above problems, a recharge method according to the present invention is a recharge method in which groundwater 2 pumped from a pumping well 7 is returned to the ground 4 through a recharge well 3. Pumping well 7
The pumping pipe 6 started from the pump 5 is provided with a control device 1 having a turbidity sensor for detecting the turbidity of the suspended matter in the pumping water, and a water supply pipe 10 leading to the recharge well 3 via the switching valve 8. And a drain pipe 11 is provided branching from an intermediate portion between the switching valve 8 and the control device 1 with a turbidity sensor,
When the turbidity sensor-equipped control device 1 detects a suspended matter having a predetermined turbidity or more, the switching valve 8 is closed, and the pumped water having a high turbidity of the suspended matter is discharged to the outside through the drain pipe 11, and the predetermined turbidity is discharged. The following pumping is performed through the water injection pipe 10 and the recharge well 3
It is characterized by returning to.
【０００６】また、リチャージ井戸の洗浄方法として、
リチャージ井戸３に通ずる注水管１０に流量スイッチ９
を取付けると共に、リチャージ井戸３の上部にレベルス
イッチ１２を取付け、前記流量スイッチ９の検出値とレ
ベルスイッチ１２の検出値に基づいてリチャージ井戸３
の目詰まりが検知されると、濁度センサー付制御装置１
によって切り替え弁８が閉止され、リチャージ井戸３の
洗浄用ポンプ１３によりリチャージ井戸３内の地下水２
が洗浄用管１４内を通じて外部に放流され目詰まりの解
消を行なうことも特徴とする。[0006] As a method of cleaning the recharge well,
Flow switch 9 on water pipe 10 leading to recharge well 3
At the same time, a level switch 12 is mounted on the upper part of the recharge well 3, and based on the detected value of the flow rate switch 9 and the detected value of the level switch 12,
When the clogging is detected, the control device 1 with the turbidity sensor
The switching valve 8 is closed by the cleaning pump 13 for the recharge well 3 and the groundwater 2 in the recharge well 3 is closed.
Is discharged to the outside through the washing pipe 14 to eliminate clogging.
【０００７】[0007]
【作用】揚水管６に接続された濁度センサー付制御装置
１により、揚水井戸７から揚水された地下水２中に含ま
れる所定濁度以上の懸濁物が検出されると、自動的に切
り替え弁８が閉止され、当該懸濁物濃度の高い揚水は排
水管１１を通じて外部に放流される。揚水が所定濁度以
下のときは、切り替え弁８が開かれたままであり、当該
揚水は注水管１０を通じてリチャージ井戸３に戻す。リ
チャージ（復水）に支障がない懸濁物濃度の低い地下水
２だけが復水されるから、リチャージ井戸３の復水能力
は長時間良好に維持できる。When the control device with a turbidity sensor connected to the pumping pipe detects a suspended matter having a predetermined turbidity or more contained in the groundwater pumped from the pumping well, the control is automatically switched. The valve 8 is closed, and the pumped water having a high concentration of the suspension is discharged to the outside through the drain pipe 11. When the pumped water is equal to or lower than the predetermined turbidity, the switching valve 8 is kept open, and the pumped water is returned to the recharge well 3 through the water injection pipe 10. Since only the groundwater 2 having a low suspended solid concentration that does not hinder recharging (condensation) is condensed, the condensing capacity of the recharging well 3 can be favorably maintained for a long time.
【０００８】長時間の復水によりリチャージ井戸３に目
詰まりが生じ、復水がリチャージ井戸３内に滞留する場
合、一方で注水管１０を通過する復水の流量が流量スイ
ッチ９に検出値として表れ、他方でリチャージ井戸３内
に滞留し上昇してきた当該井戸の水位がレベルスイッチ
１２の高さに到達し当該レベルスイッチ１２の検出値と
して表れると、リチャージ井戸３の目詰まりと判断され
る。即ち、前記二つの検出値に基づいて濁度センサー付
制御装置１により切り替え弁８が自動的に閉止され、し
かる後に濁度センサー付制御装置１から送られる信号に
よりリチャージ井戸３の洗浄用ポンプ１３が作動し、リ
チャージ井戸３内の水を吸い上げ洗浄用管１４を通じて
外部に放流する。洗浄用ポンプ１３によるリチャージ井
戸３内の水の吸い上げにより、リチャージ井戸３の周辺
地盤の粒子運動が活発化され、所謂逆洗作用によって目
詰まりが解消された段階で、洗浄用ポンプ１３が停止さ
れ、再び切り替え弁８を開き揚水井戸７からの揚水（地
下水２）が注水管１０を通じてリチャージ井戸３に注入
される。When the condensed water stays in the recharge well 3 due to clogging of the recharge well 3 due to the long-time condensate, the flow rate of the condensate passing through the water injection pipe 10 is detected by the flow rate switch 9 as a detection value. On the other hand, when the water level of the well that has accumulated and rises in the recharge well 3 reaches the height of the level switch 12 and appears as a detection value of the level switch 12, it is determined that the recharge well 3 is clogged. That is, the switching valve 8 is automatically closed by the control device 1 with the turbidity sensor based on the two detected values, and then the pump 13 for cleaning the recharge well 3 is transmitted by the signal sent from the control device 1 with the turbidity sensor. Operates to suck up the water in the recharge well 3 and discharge it to the outside through the washing pipe 14. When the water in the recharge well 3 is sucked up by the cleaning pump 13, the particle motion of the ground around the recharge well 3 is activated, and the cleaning pump 13 is stopped when the clogging is eliminated by the so-called backwashing action. Then, the switching valve 8 is opened again, and the pumped water (groundwater 2) from the pumping well 7 is injected into the recharge well 3 through the water injection pipe 10.
【０００９】[0009]
【実施例】次に、図面に示した本発明の実施例を説明す
る。図１には揚水井戸７から揚水された地下水２をリチ
ャージ井戸３を通じて地盤４中へ戻すリチャージ工法の
実施例が示されている。揚水井戸７の揚水ポンプ５から
立上げられた揚水管６は、地上で濁度センサー付制御装
置１と接続する。この制御装置１は透過型の濁度センサ
ー（図示は省略）が内蔵された装置であり、この濁度セ
ンサーにより、揚水された地下水２に含まれる懸濁物の
濁度が検出される。前記濁度センサー付制御装置１から
リチャージ井戸３に通ずる注水管１０の途中に、同注水
管１０を開閉する切り替え弁８が取付けられ、該切り替
え弁８は制御装置１と電気的に接続されている。よっ
て、同制御装置１により切り替え弁８の開閉が自動制御
される。次に、切り替え弁８と濁度センサー付制御装置
１との中間部から排水管１１を分岐して設けている。し
たがって、揚水中の濁度に関し、所定濁度以上の懸濁物
で反応するように予め濁度センサー付制御装置１の検出
値をセットしておくことにより、その設定値（所定濁
度）以上の懸濁物が検出されると切り替え弁８が閉止さ
れ、懸濁物の濃度が高い揚水（地下水２）は前記排水管
１１を通じて外部に放流する。一方、設定された前記所
定濁度以下の揚水（地下水２）は、そのまま注水管１０
を通じてリチャージ井戸３に注水して地盤中に戻す。復
水に支障がないような懸濁物濃度の低い地下水２だけが
復水（注水）されるから、長時間のリチャージを良好な
復水能力で行なうことができるのである。Next, an embodiment of the present invention shown in the drawings will be described. FIG. 1 shows an embodiment of a recharge method in which groundwater 2 pumped from a pumping well 7 is returned to the ground 4 through a recharging well 3. The pumping pipe 6 started from the pump 5 of the pumping well 7 is connected to the control device 1 with the turbidity sensor on the ground. The control device 1 is a device having a built-in transmission type turbidity sensor (not shown), and the turbidity sensor detects the turbidity of the suspended matter contained in the pumped ground water 2. A switching valve 8 that opens and closes the water injection pipe 10 is mounted in the middle of the water injection pipe 10 that leads from the control device 1 with the turbidity sensor to the recharge well 3, and the switching valve 8 is electrically connected to the control device 1. I have. Accordingly, the opening and closing of the switching valve 8 is automatically controlled by the control device 1. Next, a drain pipe 11 is provided branched from an intermediate portion between the switching valve 8 and the control device 1 with a turbidity sensor. Therefore, regarding the turbidity in the pumping water, by setting the detection value of the control device 1 with a turbidity sensor in advance so as to react with a suspended matter having a predetermined turbidity or more, the set value (predetermined turbidity) or more is set. When the suspended matter is detected, the switching valve 8 is closed, and the pumped water (ground water 2) having a high concentration of the suspended matter is discharged to the outside through the drain pipe 11. On the other hand, the pumped water (groundwater 2) having the predetermined turbidity or less is supplied as it is to the injection pipe 10
Through the recharge well 3 to return it to the ground. Since only the groundwater 2 having a low suspended solid concentration that does not hinder condensing is condensed (water-injected), long-term recharging can be performed with a good condensing capacity.
【００１０】次に、リチャージ井戸３の目詰まりを自動
的に洗浄する方法を実施するため、リチャージ井戸３に
通ずる上記注水管１０に、注水の流量を検出可能な流量
スイッチ９が取付けられている。この流量スイッチ９も
上記濁度センサー付制御装置１と電気的に接続し、流量
スイッチ９の検出値が濁度センサー付制御装置１への入
力とされ自動制御のデータとされる。また、リチャージ
井戸３の上部に、該井戸内の水位を検出可能なレベルス
イッチ１２を取付け、やはりこのレベルスイッチ１２も
前記制御装置１と電気的に接続されている。レベルスイ
ッチ１２によりリチャージ井戸３の水位の検出値が制御
装置１に入力されると、同制御装置１によって切り替え
弁８が閉止される自動制御系が組立てられている。Next, in order to carry out a method for automatically cleaning the clogging of the recharge well 3, a flow switch 9 capable of detecting the flow rate of the water is attached to the water injection pipe 10 leading to the recharge well 3. . This flow switch 9 is also electrically connected to the control device 1 with a turbidity sensor, and the detection value of the flow switch 9 is input to the control device 1 with a turbidity sensor, and is used as data for automatic control. A level switch 12 capable of detecting the water level in the well is mounted above the recharge well 3, and this level switch 12 is also electrically connected to the control device 1. When a detected value of the water level of the recharge well 3 is input to the control device 1 by the level switch 12, an automatic control system in which the switching valve 8 is closed by the control device 1 is assembled.
【００１１】したがって、揚水が一定の流量でリチャー
ジ井戸３内に流入していることが流量スイッチ９により
検出され、また、リチャージ井戸３内の水位がレベルス
イッチ１２の高さに到達して水位の上昇が検出される
と、これら二つの検出値に基づいて濁度センサー付制御
装置１によりリチャージ井戸３の目詰まりと判断され、
まず切り替え弁８が閉止される。つづいて、制御装置１
からの信号によりリチャージ井戸３の洗浄用ポンプ１３
が始動され、リチャージ井戸３内の水が洗浄用管１４を
通じて外部に放流される。この放流状態をしばらく続け
ると、井戸周辺の地盤中の地下水の逆流による逆洗作用
によって目詰まりが解消される。従って、一定時間後に
再び揚水井戸７から所定濁度以下の揚水（地下水２）を
注入すると、目詰まりが解消されたリチャージ井戸３か
ら周辺地盤へと復水はスムーズに浸透していく。なお、
本実施例の濁度センサー付制御装置１の内部にタイマー
を内蔵させておくと、リチャージ井戸３の洗浄が定期的
に行なわれ、目詰まりを効果的に防ぐことができる。Therefore, it is detected by the flow rate switch 9 that the pumped water flows into the recharge well 3 at a constant flow rate, and the water level in the recharge well 3 reaches the height of the level switch 12 so that the water level is reduced. When the rise is detected, the controller 1 with the turbidity sensor determines that the recharge well 3 is clogged based on these two detected values,
First, the switching valve 8 is closed. Subsequently, the control device 1
Pump 13 for recharge well 3 by signal from
Is started, and the water in the recharge well 3 is discharged to the outside through the cleaning pipe 14. If this discharge state is continued for a while, clogging is eliminated by the backwashing action due to the backflow of groundwater in the ground around the well. Therefore, when the pumping water (groundwater 2) having a predetermined turbidity or less is again injected from the pumping well 7 after a certain time, the condensate smoothly permeates into the surrounding ground from the recharge well 3 where the clogging has been eliminated. In addition,
If a timer is built in the control device 1 with a turbidity sensor of the present embodiment, the recharge well 3 is periodically cleaned, and clogging can be effectively prevented.
【００１２】要するに、上記のリチャージ井戸３の維持
管理が全て濁度センサー付制御装置１を介して自動制御
されるのである。In short, the maintenance of the recharge well 3 is automatically controlled through the control unit 1 with the turbidity sensor.
【００１３】[0013]
【本発明が奏する効果】本発明に係るリチャージ工法に
よれば、リチャージ井戸の目詰まりが可及的に防止さ
れ、リチャージ井戸の復水能力を長時間良好に維持で
き、根切工事・基礎の建築を安全確実に行え、施工性と
品質、信頼性の高い構造物の構築に寄与する。また、リ
チャージ井戸に目詰まりが発生すると、リチャージ井戸
の洗浄が自動的に行なわれるので、目詰まりを効果的に
解消できて復水能力が回復され、根切工事等が順調に行
なわれる。According to the recharging method according to the present invention, clogging of the recharge well can be prevented as much as possible, and the condensing capacity of the recharge well can be maintained well for a long time. The building can be performed safely and reliably, and contributes to the construction of structures with high workability, quality and reliability. In addition, when clogging occurs in the recharge well, the recharge well is automatically cleaned, so that the clogging can be effectively eliminated, the condensing capacity is restored, and root cutting work and the like are smoothly performed.
【図１】この発明のリチャージ工法の実施要領を示した
説明図である。FIG. 1 is an explanatory diagram showing an embodiment of a recharge method according to the present invention.
７ 揚水井戸 ２ 地下水 ３ リチャージ井戸 ４ 地盤 ５ 揚水ポンプ ６ 揚水管 １ 濁度センサー付制御装置 ８ 切り替え弁 １０ 注水管 １１ 排水管 ９ 流量スイッチ １２ レベルスイッチ １３ 洗浄用ポンプ １４ 洗浄用管 Reference Signs List 7 pumping well 2 groundwater 3 recharge well 4 ground 5 pumping pump 6 pumping pipe 1 control device with turbidity sensor 8 switching valve 10 water injection pipe 11 drainage pipe 9 flow switch 12 level switch 13 washing pump 14 washing pipe
───────────────────────────────────────────────────── フロントページの続き (73)特許権者 000219875 東急建設株式会社 東京都渋谷区渋谷１丁目16番14号 (73)特許権者 000147626 株式会社青木建設 大阪府大阪市北区大淀南１丁目４番15号 (72)発明者 石瀬 俊明 東京都江東区南砂二丁目５番14号 株式 会社竹中工務店技術研究所内 (72)発明者 小田 大司 東京都江東区南砂二丁目５番14号 株式 会社竹中工務店技術研究所内 (72)発明者 木村 玄 東京都江東区南砂二丁目５番14号 株式 会社竹中工務店技術研究所内 (72)発明者 藤井 建輝 東京都中央区銀座八丁目21番１号 株式 会社竹中土木内 (72)発明者 森嶋 章 東京都中央区銀座八丁目21番１号 株式 会社竹中土木内 (72)発明者 真田 慎一 札幌市中央区大通西四丁目１番地 株式 会社竹中土木北海道支店内 (72)発明者 苗村 正三 茨城県つくば市大字旭１番地 建設省土 木研究所内 (72)発明者 小野寺 誠一 茨城県つくば市大字旭１番地 建設省土 木研究所内 (72)発明者 熊倉 通 東京都文京区音羽二丁目10番２号 財団 法人先端建設技術センター内 (72)発明者 広井 恵二 神奈川県相模原市田名字曽根下3062−１ 東急建設株式会社技術研究所内 (72)発明者 江部 利信 東京都中央区築地六丁目19番20号 株式 会社青木建設研究所内 (56)参考文献 特開 昭60−105706（ＪＰ，Ａ) 特開 昭63−277322（ＪＰ，Ａ) 特開 平３−235814（ＪＰ，Ａ) 特開 平６−49870（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E02D 3/10 E03B 3/15 E03B 5/04 ──────────────────────────────────────────────────続 き Continued on the front page (73) Patent owner 000219875 Tokyu Construction Co., Ltd. 1-16-14 Shibuya, Shibuya-ku, Tokyo (73) Patent owner 000147626 Aoki Construction Co., Ltd. 1-chome, Oyodominami, Kita-ku, Osaka-shi, Osaka No. 4-15 (72) Inventor Toshiaki Ishise 2-5-1 Minamisuna, Koto-ku, Tokyo Inside the Research Institute of Takenaka Corporation (72) Inventor Daiji Oda 2-5-1, Minamisuna, Koto-ku, Tokyo Stock Inside the Takenaka Corporation Technical Research Institute (72) Inventor Gen Kimura 2-5-1-14 Minamisuna, Koto-ku, Tokyo Stock Company Inside the Takenaka Corporation Technical Research Institute (72) Inventor Takeki Fujii 8--21 Ginza, Chuo-ku, Tokyo No. 1 Takenaka Civil Engineering Co., Ltd. (72) Inventor Akira Morishima 8-21-1, Ginza, Chuo-ku, Tokyo Co., Ltd. Takenaka Civil Engineering Co., Ltd. (72) Shinichi Sanada Chuo-ku, Sapporo 4-1-1, Tsutonishi Inside the Hokkaido Branch of Takenaka Civil Engineering Co., Ltd. Within the Ministry of Civil Engineering (72) Inventor Toru Kumakura 2-10-2 Otowa, Bunkyo-ku, Tokyo Inside the Advanced Construction Technology Center (72) Inventor Keiji Hiroi 302-1 Tanaji Soneshita, Sagamihara City, Kanagawa Prefecture Tokyu Construction Inside Technical Research Institute Co., Ltd. (72) Inventor Toshinobu Ebe 6-19-20 Tsukiji, Chuo-ku, Tokyo Inside Aoki Construction Research Institute Co., Ltd. (56) References JP-A-60-105706 (JP, A) JP-A-63 -277322 (JP, A) JP-A-3-235814 (JP, A) JP-A-6-49870 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) E02D 3/10 E03B 3/15 E03B 5/04
Claims (2)
ジ井戸を通じて地盤中へ戻すリチャージ工法において、
揚水井戸の揚水ポンプから立上げられた揚水管は、揚水
中の懸濁物の濁度を検出する濁度センサー付制御装置、
及び切り替え弁を経由してリチャージ井戸に通ずる注水
管と接続し、前記切り替え弁と濁度センサー付制御装置
との中間部から排水管を分岐して設け、濁度センサー付
制御装置により所定濁度以上の懸濁物が検出されると、
切り替え弁が閉止され、懸濁物の濁度が高い揚水は前記
排水管を通じて外部に放流し、所定濁度以下の揚水は注
水管を通じてリチャージ井戸に戻すことを特徴とする、
リチャージ工法。A recharge method for returning groundwater pumped from a pumping well to the ground through a recharging well.
The pumping pipe, which is set up from the pump of the pumping well, is a control device with a turbidity sensor that detects the turbidity of suspended matter during pumping.
And a water pipe connected to a recharge well via a switching valve, and a drain pipe is provided by branching from an intermediate portion between the switching valve and the control device with a turbidity sensor. When the above suspension is detected,
The switching valve is closed, the pumped water having a high turbidity of the suspension is discharged outside through the drain pipe, and the pumped water having a predetermined turbidity or less is returned to the recharge well through the water injection pipe.
Recharge method.
ッチを取付けると共に、リチャージ井戸の上部にレベル
スイッチを取付け、前記流量スイッチの検出値及びレベ
ルスイッチの検出値に基づいてリチャージ井戸の目詰ま
りが検知されると、濁度センサー付制御装置によって切
り替え弁が閉止され、リチャージ井戸の洗浄用ポンプに
よりリチャージ井戸内の地下水が洗浄用管を通じて外部
に放流され目詰まりの解消が行なわれることを特徴とす
る、請求項１に記載したリチャージ工法。2. A flow switch is mounted on an injection pipe leading to a recharge well, and a level switch is mounted on an upper part of the recharge well, and clogging of the recharge well is detected based on a detected value of the flow switch and a detected value of the level switch. Then, the switching valve is closed by the control device with the turbidity sensor, and groundwater in the recharge well is discharged to the outside through the washing pipe by the washing pump of the recharge well to eliminate clogging. The recharge method according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34688092A JP3158168B2 (en) | 1992-12-25 | 1992-12-25 | Recharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34688092A JP3158168B2 (en) | 1992-12-25 | 1992-12-25 | Recharge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06193041A JPH06193041A (en) | 1994-07-12 |
| JP3158168B2 true JP3158168B2 (en) | 2001-04-23 |
Family
ID=18386448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34688092A Expired - Lifetime JP3158168B2 (en) | 1992-12-25 | 1992-12-25 | Recharge method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3158168B2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4585221B2 (en) * | 2004-04-07 | 2010-11-24 | 東日本旅客鉄道株式会社 | Condensation method and condensate structure used therefor |
| JP4682675B2 (en) * | 2005-04-06 | 2011-05-11 | 株式会社大林組 | Groundwater management system and groundwater management method |
| JP4730603B2 (en) * | 2006-03-29 | 2011-07-20 | 清水建設株式会社 | Recharge method and groundwater recharge system used therefor |
| KR101039263B1 (en) * | 2008-08-19 | 2011-06-07 | 서울메트로 | The transfer canal of the underground water which flows out |
| CN104234133B (en) * | 2014-09-13 | 2015-09-16 | 山东省水利科学研究院 | Intelligent groundwater mining and backflow device |
| JP6447046B2 (en) * | 2014-11-20 | 2019-01-09 | 株式会社大林組 | Groundwater pumping management system and groundwater pumping method |
| JP6846140B2 (en) * | 2016-09-01 | 2021-03-24 | 株式会社竹中工務店 | Injection method of injection solution |
| JP7026346B2 (en) * | 2017-11-16 | 2022-02-28 | 鹿島建設株式会社 | Condensate well control system and condensate well control method |
| JP7102872B2 (en) * | 2018-04-03 | 2022-07-20 | 株式会社大林組 | Condensation method and condensate well system |
| CN109469081B (en) * | 2018-12-11 | 2024-02-20 | 中冶沈勘秦皇岛工程设计研究总院有限公司 | Automatic recharging system |
| CN110377085B (en) * | 2019-08-23 | 2024-04-16 | 北京市政路桥股份有限公司 | Recharging automation control device |
-
1992
- 1992-12-25 JP JP34688092A patent/JP3158168B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06193041A (en) | 1994-07-12 |
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