JPS6311708A - Fill dam - Google Patents
Fill damInfo
- Publication number
- JPS6311708A JPS6311708A JP15289686A JP15289686A JPS6311708A JP S6311708 A JPS6311708 A JP S6311708A JP 15289686 A JP15289686 A JP 15289686A JP 15289686 A JP15289686 A JP 15289686A JP S6311708 A JPS6311708 A JP S6311708A
- Authority
- JP
- Japan
- Prior art keywords
- zone
- water
- fill dam
- wall
- cut
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920006327 polystyrene foam Polymers 0.000 claims description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 8
- 230000005484 gravity Effects 0.000 abstract description 6
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 239000002390 adhesive tape Substances 0.000 abstract description 2
- 229920005549 butyl rubber Polymers 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 2
- 239000002689 soil Substances 0.000 description 11
- 229920006328 Styrofoam Polymers 0.000 description 9
- 239000008261 styrofoam Substances 0.000 description 9
- 239000004794 expanded polystyrene Substances 0.000 description 4
- 238000005056 compaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野）
本発明は、ロックフィルダムおよびアースダム等の所謂
フィルダムに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to so-called fill dams such as rock fill dams and earth dams.
（従来の技術）
従来のフィルダムにおいては、その堤体の内部に土質進
水ゾーンを設けて遮水している。この土質通水ゾーンは
、必要とする遮水性およびせん断強度を満足させるため
に、常にその土質の密度および含水比を調整管理しなが
ら施工されている。(Prior Art) In conventional fill dams, a soil launching zone is provided inside the embankment body to block water. This soil water permeability zone is constructed by constantly adjusting and managing the density and water content of the soil in order to satisfy the required impermeability and shear strength.
（発明が解決しようとする問題点）
しかしながら土質遮水ゾーンの含水比は、気象条件によ
り大きく変化するため、含水比の調整に悩むことがしば
しばである。また、低温になると、土中の水分が凍結す
るため、転圧締め固めしても遮水材料として必要な性質
を確保できなくなる。(Problems to be Solved by the Invention) However, since the water content ratio of the soil impermeable zone varies greatly depending on weather conditions, it is often difficult to adjust the water content ratio. Furthermore, at low temperatures, the moisture in the soil freezes, making it impossible to secure the properties necessary as a water-blocking material even if the soil is compacted.
したがって土質遮水ゾーンの施工可能日数は、伯の工種
に比較して少なくなるので、土質遮水ゾーンの盛立、締
め固め作業が工程上の隘路になる場合が多いという問題
点があった。Therefore, the number of days that can be constructed in the soil impermeable zone is shorter than in the case of the same type of work, so there is a problem in that the heaving and compaction work of the soil impermeable zone often becomes a bottleneck in the process.
（問題点を解決するための手段）
上述の問題点を解決するため本発明においては、フィル
ダムの遮水壁あるいは遮水ゾーンを発泡ス −チロ
ール（フオームスチレン）により形成して遮水するよう
にする。(Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, the water-shielding wall or water-shielding zone of the fill dam is made of foamed styrene (foam styrene) to block water. do.
（作用）
上述のように本発明においては、フィルダムの遮水壁あ
るいは遮水ゾーンを発泡スチロールにより形成するよう
にした。しかしてこの発泡スチロールは遮水性がきわめ
て高いため、従来の土質遮水ゾーンのように転圧締め固
めして含水比を調整する必要がなくなる。したがって本
発明によれば、遮水ゾーンを気象条件の制約をうけずに
施工可能となる。また発泡スチロールは比重が０．０２
〜０．０５という超軽う材であるから、重機を使用する
ことなく、人力でも運搬敷設が可能である上に、成形お
よび切削加工も容易であるから、所望のブロック形状に
してこれを遮水壁に組み立てることも容易であり、また
接合面の接着も簡単にできるため、遮水性のよいフィル
ダムを短期間に築造することができる。(Function) As described above, in the present invention, the water-blocking wall or the water-blocking zone of the fill dam is formed of expanded polystyrene. However, since the Styrofoam lever has extremely high water-blocking properties, there is no need to adjust the water content by compacting it by compaction as in conventional soil-based water-blocking zones. Therefore, according to the present invention, a water-blocking zone can be constructed without being restricted by weather conditions. Also, Styrofoam has a specific gravity of 0.02.
Since it is an ultra-light material weighing ~0.05, it can be transported and laid by hand without the use of heavy machinery, and it is also easy to form and cut, so it can be shaped into the desired block shape and shielded. Since it is easy to assemble to a water wall and the bonding surfaces can be easily bonded, a fill dam with good water-blocking properties can be constructed in a short period of time.
（実施例） 以下、図面について本発明の詳細な説明する。(Example) Hereinafter, the present invention will be described in detail with reference to the drawings.
第１図〜第３図は第１実施例を示すもので、図中の寸法
は単位ｍである。図中ａはフィルダムのロックゾーン、
ｂはフィルターゾーン、Ｃはコアゾーンである。1 to 3 show a first embodiment, and the dimensions in the figures are in m. In the figure, a is the lock zone of the fill dam.
b is the filter zone and C is the core zone.
本実施例においては、このコアゾーンＣを第２図および
第３図に示すように、発泡スチロール製のブロックｄを
台形に積み上げて形成する。各ブロック０間の接続には
、酢酸ビニル樹脂系等の接着剤を使用するか、市販のブ
チルゴム等の両面接着テープを使用して接合面を接着す
るか、または隣接するブロック間を接続具（ダウェル）
によって接合することもできる。In this embodiment, the core zone C is formed by piling up polystyrene foam blocks d in a trapezoidal shape, as shown in FIGS. 2 and 3. To connect each block 0, use an adhesive such as vinyl acetate resin, or use a commercially available double-sided adhesive tape such as butyl rubber to adhere the joint surfaces, or connect adjacent blocks with a connecting device ( Dowell)
It can also be joined by
なお、このコアゾーンＣの岩着部は、従来通りコンタク
トクレーを用いて平坦面を造るものとする。In addition, the rocky part of this core zone C shall be made into a flat surface using contact clay as in the past.
この実施例の場合、コアゾーンＣの揚圧力に対しては、
コアゾーンＣを上部が狭く、下部が広い台形に形成する
ことにより十分抵抗できる。なおコアゾーンＣの両側の
フィルターゾーンｂおよびロックゾーンａの施工は従来
のフィルダムと同様にすればよい。In this example, for the uplift pressure in core zone C,
Sufficient resistance can be achieved by forming the core zone C into a trapezoid with a narrow upper part and a wider lower part. Note that the filter zone b and lock zone a on both sides of the core zone C may be constructed in the same manner as in the conventional fill dam.
また上述のように形成したコアゾーンＣの圧縮変形特性
については、比重０，０２０． ０，０３０゜０．０５
０の発泡スチロールのひずみ量と圧縮応力が第６図に示
す通りであるから、発泡スチロールの比重を調整するこ
とにより所望の変形特性に近づけることができる。また
強度についても、堤高１００！ｌｌ程度のダムでは使用
する発泡スチロールの比重を大きくすることにより十分
対応できる。Moreover, regarding the compressive deformation characteristics of the core zone C formed as described above, the specific gravity is 0.020. 0,030゜0.05
Since the strain amount and compressive stress of 0 Styrofoam are as shown in FIG. 6, it is possible to approximate the desired deformation characteristics by adjusting the specific gravity of the Styrofoam. In terms of strength, the embankment height is 100! A dam of about 1.1 liters can be adequately handled by increasing the specific gravity of the styrofoam used.
また発泡スチロールの紫外線による劣化については、コ
アゾーンＣは直射日光が全く当らないから問題はない。Furthermore, regarding the deterioration of Styrofoam due to ultraviolet rays, there is no problem because the core zone C is not exposed to direct sunlight at all.
そして発泡スチロールの吸水量は、１００ｄあたり１９
以下であるため、その遮水性はきわめてよい。したがっ
て従来の土質遮水ゾーンに対して本発明の遮水ゾーンは
、その厚さを数分の−に小さくすることが可能となる。The water absorption amount of Styrofoam is 19 per 100 d.
The water impermeability is extremely good. Therefore, the thickness of the water-blocking zone of the present invention can be reduced to several times smaller than that of the conventional soil water-blocking zone.
また第４図および第５図は本発明の第２実施例を示すも
ので、図中前記符号と同一の符号は同等まものを示して
いる。Further, FIGS. 4 and 5 show a second embodiment of the present invention, and the same reference numerals as the above-mentioned reference numerals in the figures indicate equivalent parts.
本実施例の場合は、フィルダムの貯水側にフィルターゾ
ーンｂによって挾まれた遮水壁ｅを発泡スチロールによ
って形成する。In the case of this embodiment, an impermeable wall e sandwiched between filter zones b is formed of polystyrene foam on the water storage side of the fill dam.
第５図はその遮水壁部の詳細を示すもので、この場合、
遮水壁ｅは発泡スチロール製のブロックを積層して形成
されている。なおｆはフィルターゾーンｂの表面を覆う
アスファルトの吹き付は層である。Figure 5 shows the details of the water-shielding wall, and in this case,
The water-shielding wall e is formed by laminating blocks made of expanded polystyrene. Note that f is the sprayed layer of asphalt covering the surface of filter zone b.
この実施例の場合も第１実施例のものと同様の作用効果
が得られる。This embodiment also provides the same effects as those of the first embodiment.
（発明の効果）
上述のように本発明においては、フィルダムの遮水壁あ
るいは遮水ゾーンを発泡スチロールにより形成するよう
にした。しかしてこの発泡スチロールは遮水性がきわめ
て高いため、従来の土質遮水ゾーンのように転圧締め固
めして含水比を調整する必要がなくなる。したがって本
発明によれば、遮水ゾーンは気象条件の制約をうけずに
施工可能となる。また発泡スチロールは比重が０．０２
〜０．０５という超軽吊材であるから重機を使用するこ
となく、人力でも運搬敷設が可能である上に、成形およ
び切削加工も容易であるから、所望のブロック形状にし
てこれを遮水壁に組み立てることも容易であり、また接
合面の接着も簡単にできるため、本発明によれば、遮水
性のよいフィルダムを短期間に築造することができると
いう効果が得られる。(Effects of the Invention) As described above, in the present invention, the water-blocking wall or the water-blocking zone of the fill dam is formed of expanded polystyrene. However, since the Styrofoam lever has extremely high water-blocking properties, there is no need to adjust the water content by compacting it by compaction as in conventional soil-based water-blocking zones. Therefore, according to the present invention, the water-blocking zone can be constructed without being restricted by weather conditions. Also, Styrofoam has a specific gravity of 0.02.
Since it is an ultra-light hanging material weighing ~0.05, it can be transported and laid by hand without the use of heavy machinery, and it is also easy to form and cut, so it can be made into the desired block shape and made to be waterproof. Since it is easy to assemble to a wall and the bonding surfaces can be easily bonded, the present invention has the effect that a fill dam with good water-blocking properties can be constructed in a short period of time.
第１図は本発明フィルダムの第１実施例を示す断面図、
１２図はそのコアゾーンの部分立面図、第３図はそのブ
ロックの積み上げ方法の一例を示す斜視図、
第４図は本発明フィルダムの第２実施例を示す断面図、
第５図はその遮水壁部の部分断面図、
第６図は発泡スチロールの特性図である。
ａ・・・ロックゾーン ｂ・・・フィルターゾーン
Ｃ・・・コアゾーン ｄ・・・ブロックｅ・・・
遮水壁
ｆ・・・アスファルトの吹き付は届
第１図
第４図
Ｑ ｆｏ ２０ ３０ ４０９す゛Ｈ夛
％Fig. 1 is a sectional view showing the first embodiment of the fill dam of the present invention, Fig. 12 is a partial elevational view of its core zone, Fig. 3 is a perspective view showing an example of the method of stacking blocks, and Fig. 4 is the inventive fill dam. A sectional view showing a second embodiment of the fill dam, FIG. 5 is a partial sectional view of its impermeable wall, and FIG. 6 is a characteristic diagram of expanded polystyrene. a... Lock zone b... Filter zone C... Core zone d... Block e...
Impermeable wall f... Asphalt spraying shall be reported in Figure 1 Figure 4 Q fo 20 30 409 Su゛H 夛%
Claims (1)
ロールにより形成して遮水するようにしたことを特徴と
するフイルダム。1. A film dam characterized in that the water-blocking wall or water-blocking zone of the film dam is made of polystyrene foam to block water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61152896A JPH0814099B2 (en) | 1986-06-30 | 1986-06-30 | Fildam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61152896A JPH0814099B2 (en) | 1986-06-30 | 1986-06-30 | Fildam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6311708A true JPS6311708A (en) | 1988-01-19 |
| JPH0814099B2 JPH0814099B2 (en) | 1996-02-14 |
Family
ID=15550499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61152896A Expired - Fee Related JPH0814099B2 (en) | 1986-06-30 | 1986-06-30 | Fildam |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0814099B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11225767B1 (en) * | 2021-09-01 | 2022-01-18 | Prince Mohammad Bin Fahd University | Earthen dam structure |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265928A (en) * | 1975-11-22 | 1977-05-31 | Vredestein Nv | Water stopping that can inject and seal and its installation method |
-
1986
- 1986-06-30 JP JP61152896A patent/JPH0814099B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5265928A (en) * | 1975-11-22 | 1977-05-31 | Vredestein Nv | Water stopping that can inject and seal and its installation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11225767B1 (en) * | 2021-09-01 | 2022-01-18 | Prince Mohammad Bin Fahd University | Earthen dam structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0814099B2 (en) | 1996-02-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313111 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| LAPS | Cancellation because of no payment of annual fees |