KR20060100315A - Upstream part retaining wall type fill dam - Google Patents

Upstream part retaining wall type fill dam Download PDF

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Publication number
KR20060100315A
KR20060100315A KR1020060077353A KR20060077353A KR20060100315A KR 20060100315 A KR20060100315 A KR 20060100315A KR 1020060077353 A KR1020060077353 A KR 1020060077353A KR 20060077353 A KR20060077353 A KR 20060077353A KR 20060100315 A KR20060100315 A KR 20060100315A
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KR
South Korea
Prior art keywords
dam
retaining wall
body
upstream
present invention
Prior art date
Application number
KR1020060077353A
Other languages
Korean (ko)
Inventor
공종복
Original Assignee
(주)인텔리지오
주식회사 도화종합기술공사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by (주)인텔리지오, 주식회사 도화종합기술공사 filed Critical (주)인텔리지오
Priority to KR1020060077353A priority Critical patent/KR20060100315A/en
Publication of KR20060100315A publication Critical patent/KR20060100315A/en

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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/02Fixed barrages
    • E02B7/04Dams across valleys
    • E02B7/06Earth-fill dams; Rock-fill dams

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fill dam constituted by a festival of earth and stone, wherein a portion of an upstream side of the dam is formed of a concrete retaining wall, thereby reducing the volume of the dam and reducing the dam volume.
Through the present invention to prevent the low capacity encroachment due to the excessive volume of the body to secure the water capacity, it is possible to install a waterproof passage through the body to secure the design and construction convenience of accessories, as well as copper upstream retaining wall Since it can be applied as a dam, it is possible to obtain the effect of reducing the air and cost of running water.
Dam, fill dam, retaining wall, anchor

Description

Upstream part retaining wall type fill dam}

1 is a representative sectional view of a conventional dam

Figure 2 is a representative cross-sectional view of the present invention

Figure 3 is a representative cross-sectional view of an embodiment of the present invention the waterproof road is installed

4 is an explanatory diagram of the construction process of the present invention

<Code Description of Main Parts of Drawing>

10: body

11 core zone

12: filter zone

13: rock zone

20: retaining wall

21: waterproofing path

22: anchor

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fill dam constituted by a festival of earth and stone, wherein a portion of an upstream side of the dam is formed of a concrete retaining wall, thereby reducing the volume of the dam and reducing the dam volume.

Peel Dam is a dam that uses traditional landfill materials such as soil and stone for festivals and has been avoided because of its inferiority in mechanical stability because it is inferior in homogeneity with materials such as concrete in the past. It is a type of dam that is in the spotlight again as an accumulation of analysis experience.

Soil, which is the material of peel dam, has the advantage of being able to build even the weak rocky ground because the unit weight is smaller than that of concrete.But basically, the minimum slope angle is needed to maintain the slope, so the cross section is larger than other dam types. There were only fatal drawbacks.

In addition, since there is virtually no significant adhesion between the particles of the earthen material, which is a festive material, there was a problem that the intake and discharge facilities could not be installed through or close to the body due to the scour. It was essentially impossible to convert the flowing water through the large-scale cofferdams and bypass waterways. Therefore, there was a serious problem that the construction period and the cost of construction were large.

The present invention has been made in view of the above-described problems, and it is possible to reduce the cross-sectional area of the body by constituting a portion of the upstream body of the dam to be a concrete retaining wall.

Such a retaining wall is installed at a predetermined distance in parallel with the dam axis of the dam before the festival of the main dam, and may serve as a cofferdam in the festival of the main dam.

In addition, by installing and passing the waterproof passage through the retaining wall before the festival of the main dam, it is possible to flow the water through the drainage in the body which was impossible in the conventional dam dam. A large number of anchors fixed to the wall can effectively cope with the earth pressure of the body.

Prior to the detailed description of the present invention, when explaining the configuration of the conventional fill dam (fill dam) and the formation principle of the reservoir, the fill dam as shown in Fig. 1 is composed of earthen soil that is maintained in the slope, the illustrated example The core wall of the dam is shown in the cross section, and in the case of the core wall dam, the core zone (core zone) 11, filter zone (12) and rock zone (13) from the center It is divided into various zones that perform different roles, and so on. In forming the reservoir through such a dam, the upstream water level is not maintained by the full order of the dam body 10, but the body 10 is formed. The present invention is also maintained by the descent of the infiltration line (침 線) due to the constituents constituting the present invention, the retaining wall (20) itself is designed based on the reservoir is maintained by the body (10) rather than maintaining the upstream level entirelyIt is to be constructed.

That is, the retaining wall 20 of the present invention is not intended for the surface order of the body 10, but instead of cutting a part of the upstream side of the body 10 in order to reduce the cross section of the body 10, As a structure for bearing the earth pressure, there may be a substantial degree of ordering effect, but the usual operating water level of the reservoir is not designed for the ordering effect because it is planned above the top of the retaining wall 20.

This is also largely classified as a surface-damping wall-type dam, which is a kind of deformed dam, and the surface-order wall-type dam is placed by placing asphalt or concrete plate on the upstream side of the body 10 having the same or similar cross-sectional structure as a general dam. While the retaining wall 20 of the present invention makes the earth pressure due to the rear body 10 as the main load, the asphalt or concrete plate constituting the surface order wall dam has a mechanically significant rigidity. It does not have a just to act as a sort of a curtain, the maintenance of the body (10) is to be in charge of the soil constituting the body (10).

This characteristic of the present invention is well shown through the representative cross-sectional view of Figure 2, as can be seen through the same figure, the retaining wall 20 can resist the earth pressure of the body 10 acting on the back surface. It has a cantilever structure, and underneath is an enlarged base and key to prevent activity or fall.

However, in the actual operation after freshwater, the hydrostatic pressure of the reservoir is acted together with the earth pressure on the back of the retaining wall 20, so it may be structurally more stable, but significant hydrostatic pressure does not work in the event of construction or emergency in which the reservoir level drops excessively. Since it is not possible to exclude the hydrostatic pressure when planning, it is also possible to install the anchor 22 for preventing the fall of the retaining wall 20 as shown in FIG.

Meanwhile, since the concrete wall is formed at the lower end side upstream of the body 10 through the present invention, the body 10 penetrates the waterproof passage 21 which was not possible due to the scour around the inlet. It can be installed as shown in FIG. 3, and thus, the construction cost is low, and the water can be diverted through drainage in the body 10, which can be constructed in a short period of time. It can also be used for various purposes, such as power generation and water supply pipelines.

The construction process of the present invention including the accessory facilities such as the waterproof passage 21 and the anchor 22 is shown in Figure 4, briefly described the construction process through the same drawing as follows.

First, the retaining wall 20 is installed, and then through-hole and shut-off valve is installed in the part to which the waterproof passage 21 is connected, and the body 10 is feasted to a predetermined height.

After feasting the body 10 to the lower elevation of the waterproofing passage 21, construct the waterproofing passage 21, and thereafter, perform a layered festival of repeating the filling and compacting with a predetermined height as a single filling volume, and the festival is anchor 22 After reaching the planned elevation, the anchor 22 is mounted as in the enlarged part of the circle of FIG. 4, and the end thereof is fixed to the retaining wall 20 and the filling is continued.

Such filling and anchor 22 is repeated to complete the body 10, while the conventional anchor 22 is constructed through a type or the like on the natural ground, in the present invention takes a buried method when filling the anchor The length of (22) can be freely adjusted, and as shown in the enlarged part of the circle of FIG. 4, the anchor 22 can be installed vertically at the tip of the anchor, and since the compaction is made firmly after filling, it is possible to secure the desired supporting force. Can be.

Finally, the technical gist of the present invention is a fill dam, which is festooned with earth, and has a lower end fixed to the ground and a retaining wall parallel to the dam at a position spaced a predetermined distance upstream from the dam axis. An upstream retaining wall type dam, characterized in that the body 10 is formed by the earthwork being festivaled behind the retaining wall 20, is embedded in the body 10 and the distal end thereof is retained in the retaining wall 20. The upstream retaining wall type dam is characterized in that the anchor 22 is fixed to prevent the conduction of the retaining wall 20.

Through the present invention to prevent the low capacity encroachment due to the excessive volume of the body to secure the water capacity, it is possible to install a waterproof passage through the body to secure the design and construction convenience of accessories, as well as copper upstream retaining wall Since it can be applied as a dam, it is possible to obtain the effect of reducing the air and cost of running water.

Claims (2)

  1. In a fill dam which is festively festooned,
    A retaining wall 20 fixed to the ground and parallel to the dam is provided at a position spaced a predetermined distance upstream from the dam axis;
    An upstream retaining wall type dam, characterized in that the body (10) is constituted by the earthwork being festively behind the retaining wall (20).
  2. The upstream retaining wall type dam of claim 1, wherein an anchor (22) embedded in the body (10) and having a distal end fixed to the retaining wall (20) is installed to prevent the retaining wall (20) from falling.
KR1020060077353A 2006-08-16 2006-08-16 Upstream part retaining wall type fill dam KR20060100315A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020060077353A KR20060100315A (en) 2006-08-16 2006-08-16 Upstream part retaining wall type fill dam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060077353A KR20060100315A (en) 2006-08-16 2006-08-16 Upstream part retaining wall type fill dam

Publications (1)

Publication Number Publication Date
KR20060100315A true KR20060100315A (en) 2006-09-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020060077353A KR20060100315A (en) 2006-08-16 2006-08-16 Upstream part retaining wall type fill dam

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Country Link
KR (1) KR20060100315A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587397A (en) * 2012-03-13 2012-07-18 中建五局土木工程有限公司 Steel bearing plate soil-and-stone combined coffer structure and construction method thereof
CN103061348A (en) * 2013-01-15 2013-04-24 广州市市政工程设计研究院 Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam
KR101398915B1 (en) * 2013-08-27 2014-05-27 이종근 Reinforcement method for earthfill dam
CN106120823A (en) * 2016-07-08 2016-11-16 中南大学 A kind of Temporary Cofferdam combination against seepage structure and rapid constructing method
CN107044109A (en) * 2017-04-26 2017-08-15 中国电建集团西北勘测设计研究院有限公司 A kind of geomembrane anti-seepage sand-gravel dam

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102587397A (en) * 2012-03-13 2012-07-18 中建五局土木工程有限公司 Steel bearing plate soil-and-stone combined coffer structure and construction method thereof
CN103061348A (en) * 2013-01-15 2013-04-24 广州市市政工程设计研究院 Sand-bag and steel sheet pile combined cofferdam for hard formation and construction method of cofferdam
KR101398915B1 (en) * 2013-08-27 2014-05-27 이종근 Reinforcement method for earthfill dam
CN106120823A (en) * 2016-07-08 2016-11-16 中南大学 A kind of Temporary Cofferdam combination against seepage structure and rapid constructing method
CN107044109A (en) * 2017-04-26 2017-08-15 中国电建集团西北勘测设计研究院有限公司 A kind of geomembrane anti-seepage sand-gravel dam

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