JPH0781263B2 - Impermeable wall construction method - Google Patents
Impermeable wall construction methodInfo
- Publication number
- JPH0781263B2 JPH0781263B2 JP27496386A JP27496386A JPH0781263B2 JP H0781263 B2 JPH0781263 B2 JP H0781263B2 JP 27496386 A JP27496386 A JP 27496386A JP 27496386 A JP27496386 A JP 27496386A JP H0781263 B2 JPH0781263 B2 JP H0781263B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- impermeable
- leakage
- impermeable membrane
- construction method
- 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
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、不透水性膜材を用いた遮水壁工法に関する。TECHNICAL FIELD The present invention relates to an impermeable wall construction method using an impermeable membrane material.
「従来の技術」 地中・地下構造物の築造及び河川漏水等地中・地下水に
対する止水、産業廃棄物の処理地からの有害物質の漏水
防止等の対策として、現在、シートパイル、ソイルパイ
ル柱列壁、地中連続壁、あるいは、掘削中に溝壁を安定
させる目的で使用した安定液を固化させて成る地中壁
等、又は、不透水性膜材を、遮水壁として用いている。"Conventional technology" Currently, sheet piles and soil pile pillars are used as countermeasures for construction of underground / underground structures and water leakage in rivers, etc. A row wall, a continuous underground wall, or an underground wall formed by solidifying a stabilizing liquid used to stabilize a ditch wall during excavation, or an impermeable membrane material is used as the impermeable wall. .
「発明が解決しようとする問題点」 しかし、これらは、不透水性膜材を除いて、施工上、接
合部でのジョイントの存在が不可避であり、施工精度上
の問題として、このジョイント部を完全な水密性とする
ことは不可能であり、不透水性膜材を用いた場合、部分
的に破損する可能性があり、これとても同様である。"Problems to be solved by the invention" However, except for the water-impermeable membrane material, it is unavoidable that there is a joint at the joint in terms of construction. It is not possible to make it completely watertight, and if a water-impermeable membrane material is used, it may be partially damaged, and this is very similar.
また、このジョイント部、あるいは、不透水性膜材の破
損部からの漏水や漏出については、それらの現象の発生
自体を把握することが困難であると共に、そのほとんど
の場合において、発生箇所を実用的な精度で範囲を限定
し、検知することは困難である。In addition, it is difficult to understand the occurrence of these phenomena for water leakage and leakage from this joint part or the damaged part of the impermeable membrane material. It is difficult to limit and detect the range with reasonable accuracy.
そこで、本発明は、斯る従来の欠点を除去しようとする
ものであり、止水性の向上、貯蔵あるいは処分する物質
の漏出防止、漏水及び有害物質等の漏出の検知、漏水及
び有害物質等の漏出防止対策等を可能ならしめようとす
るものである。Therefore, the present invention is intended to eliminate such conventional drawbacks, improving the waterproofness, preventing leakage of substances to be stored or disposed of, detecting leakage of water and harmful substances, leakage of water and harmful substances, etc. It intends to take measures to prevent leakage.
「問題点を解決するための手段」 本発明は、掘削溝に袋状の区画室を配列した不透水性膜
材を挿入し、該不透水性膜材の各区画室内に埋め戻し材
又は中詰め材を投入することにある。"Means for Solving Problems" The present invention inserts a water-impermeable membrane material in which bag-shaped compartments are arranged in an excavation groove, and a backfill material or a medium in each compartment of the water-impermeable membrane material. It is to put the filling material.
「作用」 如上の構成であるから、所期の目的の達成が可能とな
る。With the above-mentioned structure of "action", the intended purpose can be achieved.
「実施例」 図面は、本発明の実施例で、第１図Ｉ乃至IVは、工程を
示している。[Examples] The drawings are examples of the present invention, and FIGS. 1 to IV show steps.
I.遮水壁の築造が対象となる地盤は、一般に、透水性の
高い砂、礫等の土質で構成され、あるいは、このような
土質で構成される地層を狭んでいる。このような地盤に
おいて、予定深度の掘削溝１を掘削すると同時に、溝壁
を安定に保持させるため、ベントナイト泥水等の安定液
２を充填する。I. The ground targeted for the construction of impermeable walls is generally composed of highly permeable sand, gravel, or other such soil material, or the stratum composed of such soil material is narrow. In such a ground, at the same time as excavating the excavation groove 1 of a predetermined depth, in order to stably hold the groove wall, a stabilizing liquid 2 such as bentonite muddy water is filled.
II.次に、その掘削溝１内の安定液中に不透水性膜材３
を挿入する。この不透水性膜材３は、第２図、第３図に
示すように、帯状で横に長い有底二重膜31の内側に適宜
間隔毎に仕切り膜32…を設けて、区画室33…を配列す
る。II. Next, the impermeable membrane material 3 in the stabilizing liquid in the trench 1
Insert. As shown in FIG. 2 and FIG. 3, this water-impermeable membrane material 3 is provided with partition membranes 32 at appropriate intervals inside a strip-shaped, horizontally long bottomed double membrane 31 to form a compartment 33. Arrange ...
不透水性膜材３を形成する素材としては、各種合成樹
脂、ゴム、布等のシートを用いる。As a material for forming the water-impermeable membrane material 3, various synthetic resin sheets, rubber sheets, and cloth sheets are used.
III.続いて、上記不透水性膜材３の各区画室33…内へ埋
め戻し材又は中詰め材４を投入する。中詰め材として
は、砂、砂礫等透水性材料を用いいる。III. Subsequently, the backfill material or the filling material 4 is put into each of the compartments 33 ... Of the water-impermeable membrane material 3. Water-permeable materials such as sand and gravel are used as filling materials.
IV.その埋め戻し材又は中詰め材４の投入の際、水位観
測や水の採取等に適したパイプ等のモニタリング設備５
を埋設し、十分に充填して終了し、遮水壁Ａを完成す
る。IV. Monitoring equipment such as pipes suitable for water level observation and water sampling when the backfill material or filling material 4 is input
To complete the impermeable wall A.
なお、不透水性膜材３の形状は、第２図、第３図に限る
ものではなく、例えば、円筒状の仕切り膜を設けてもよ
い。また、埋め戻し材又は中詰め材の投入については、
シュートを用いた自然落下、あるいは、エア圧送等によ
る強制式の投入方法が可能である。The shape of the water-impermeable membrane material 3 is not limited to those shown in FIGS. 2 and 3, and for example, a cylindrical partition membrane may be provided. Regarding the filling of backfill material or filling material,
It is possible to use a free fall method using a chute, or a forced feeding method such as air pressure feeding.
「発明の効果」 本発明によれば、次の効果を奏する。"Effects of the Invention" According to the present invention, the following effects are achieved.
（１） 掘削溝に安定液を用いても、埋め戻し材又は中
詰め材がその安定液に直接触れることがなく、安定液の
劣化を低くおさえることができ、該安定液を再度の使用
に供することができる。(1) Even when a stabilizing solution is used for the excavation trench, the backfill material or the filling material does not come into direct contact with the stabilizing solution, so that the deterioration of the stabilizing solution can be suppressed to a low level and the stabilizing solution can be reused. Can be offered.
（２） 安定液は勿論、地下水も、埋め戻し材又は中詰
め材に混入することがなく、したがって、均質な、安定
した、遮水壁を築造でき、かつ、安定液が埋め戻し材中
にまき込まれることもなくロスを防止できる。(2) Not only the stabilizing liquid but also groundwater is not mixed into the backfilling material or the filling material, so that a homogeneous and stable impermeable wall can be constructed, and the stabilizing liquid can be stored in the backfilling material. Loss can be prevented without being caught.
（３） 各区画室の埋め戻し材又は中詰め材中に、水位
観測や水の採取等のモニタリングの目的に適したパイプ
等の装置を設置することで、各区画室における漏水や有
害物質等の漏出の発生を検知できる。(3) Leakage of water and harmful substances in each compartment by installing a device such as a pipe suitable for the purpose of water level observation and monitoring such as water sampling in the backfill material or filling material of each compartment. Can be detected.
具体的には、埋め戻し材又は中詰め材中に降雨等が流入
しないようにして、内部の水位の観測により、漏水を検
知でき、また、内部の水や埋め戻し材又は中詰め材を一
部採取し、分析することによって、有害物質の漏出を容
易に検知できる。Specifically, it is possible to detect water leakage by observing the internal water level by preventing rainfall, etc. from flowing into the backfill material or backfill material, and to prevent the internal water, backfill material or backfill material from Leakage of harmful substances can be easily detected by sampling and analyzing them.
（４） 漏水や有害物質等の漏出が発生した場合には、
該当する区画室について個別に防止対策を講じることが
でき、発生箇所が不明な場合に比べ、より経済的かつ効
果的な措置を講じることができる。特に、防止対策とし
て一般的な薬液注入工法を適用する場合、薬液が対象区
画室内に効果的に注入でき、対象範囲外へ逸走すること
を防ぐことができる。(4) In case of leakage or leakage of harmful substances,
Preventive measures can be taken individually for the corresponding compartments, and more economical and effective measures can be taken compared to the case where the location of occurrence is unknown. In particular, when a general chemical liquid injection method is applied as a preventive measure, the chemical liquid can be effectively injected into the target compartment, and it is possible to prevent the chemical liquid from escaping outside the target range.
（５） 適用可能な分野としては、 ｉ）環境保全上有害な物質の廃棄、処分地の内部あるい
は外周部で、地下水や降雨等によって有害物質の漏出が
問題となる箇所 ii）放射性物質の貯蔵、処理、処分地 iii）その他、高い止水性を有する遮水壁の設置が求め
られる箇所 等が挙げられる。(5) Applicable fields are: i) Disposal of harmful substances for environmental protection, locations where leakage of harmful substances due to groundwater, rainfall, etc. becomes a problem inside or outside the disposal site ii) Storage of radioactive substances , Treatment and disposal sites iii) Other places where it is required to install impermeable walls with high water-blocking properties.
図面は、本発明の実施例で、第１図Ｉ乃至IVは、工程説
明図、第２図は、遮水壁の平面図、第３図は、不透水性
膜材の斜視図である。 Ａ……遮水壁、１……掘削溝 ２……安定液、３……不透水性膜材 ４……埋め戻し材又は中詰め材 ５……モニタリング設備 31……有底二重膜、32……仕切り膜 33……区画室The drawings are embodiments of the present invention, and FIGS. 1 to IV are process explanatory views, FIG. 2 is a plan view of an impermeable wall, and FIG. 3 is a perspective view of an impermeable membrane material. A: water-blocking wall, 1 ... excavation trench, 2 ... stabilizing liquid, 3 ... impermeable membrane material, 4 backfill material or filling material, 5 monitoring equipment, 31 double bottomed membrane, 32 …… Partition film 33 …… Compartment
Claims (1)
膜材を挿入し、該不透水性膜材の各区画室内に埋め戻し
材又は中詰め材を投入し、遮水壁を築造することを特徴
とする遮水壁工法。1. An impermeable membrane material in which bag-shaped compartments are arranged in an excavation groove, and a backfill material or a filling material is put into each compartment of the impermeable membrane material to form a water-impervious wall. An impermeable wall construction method that is characterized by the construction of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27496386A JPH0781263B2 (en) | 1986-11-18 | 1986-11-18 | Impermeable wall construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27496386A JPH0781263B2 (en) | 1986-11-18 | 1986-11-18 | Impermeable wall construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63130818A JPS63130818A (en) | 1988-06-03 |
| JPH0781263B2 true JPH0781263B2 (en) | 1995-08-30 |
Family
ID=17549007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27496386A Expired - Fee Related JPH0781263B2 (en) | 1986-11-18 | 1986-11-18 | Impermeable wall construction method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0781263B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5147616B2 (en) * | 2008-09-24 | 2013-02-20 | ケミカルグラウト株式会社 | Construction method of underground wall |
| CN106498966A (en) * | 2016-11-18 | 2017-03-15 | 中国电建集团成都勘测设计研究院有限公司 | Impervious wall construction structure |
-
1986
- 1986-11-18 JP JP27496386A patent/JPH0781263B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63130818A (en) | 1988-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |