KR100674356B1 - Foundation strengthening method of concrete dam - Google Patents

Foundation strengthening method of concrete dam Download PDF

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Publication number
KR100674356B1
KR100674356B1 KR1020060096675A KR20060096675A KR100674356B1 KR 100674356 B1 KR100674356 B1 KR 100674356B1 KR 1020060096675 A KR1020060096675 A KR 1020060096675A KR 20060096675 A KR20060096675 A KR 20060096675A KR 100674356 B1 KR100674356 B1 KR 100674356B1
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South Korea
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concrete
ground
tube
pipe
grouting injection
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KR1020060096675A
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Korean (ko)
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임종아
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주식회사 삼안
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/40—Foundations for dams across valleys or for dam constructions
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/02—Fixed barrages
    • E02B7/04—Dams across valleys
    • E02B7/08—Wall dams
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Foundations (AREA)

Abstract

A method for reinforcing a foundation of a concrete dam is provided to prevent subsidence of a ground, and to increase assembling force of concrete and the ground by installing a support in the ground. A bore is formed in an excavated ground for pouring concrete for a dam, and a fixing pipe with a grouting injection pipe is inserted to the bore of the ground(S10). Mortar is injected to the grouting injection pipe after moving up the grouting injection pipe from the fixing pipe and widening a lower part of the fixing pipe, and the fixing pipe is fastened to the ground(S20). An operating lever is combined with the upper part of the grouting injection pipe, and a steel reinforcing bar is fastened to a support pipe after fastening the support pipe to the operating lever(S30). A form for pouring concrete is installed in the ground, and a retaining wall is formed by pouring and curing concrete in the form and laying earth in the back of concrete(S40). A taper is inclined and formed in a lower part of the grouting injection pipe, and a slot is formed in the lower part of the fixing pipe and opened outward by the taper. A groove is formed in the support pipe to insert the steel reinforcing bar.

Description

콘크리트댐 기초보강공법{FOUNDATION STRENGTHENING METHOD OF CONCRETE DAM}FOUNDATION STRENGTHENING METHOD OF CONCRETE DAM}

도 1은 본 발명의 실시예에 따른 콘크리트댐 기초보강공법에 사용되는 지주를 나타낸 분해사시도이다.1 is an exploded perspective view showing the struts used in the concrete dam foundation reinforcement method according to an embodiment of the present invention.

도 2는 본 발명의 실시예에 따른 콘크리트댐 기초보강공법에 사용되는 지주를 나타낸 단면도이다.Figure 2 is a cross-sectional view showing the struts used in the concrete dam foundation reinforcement method according to an embodiment of the present invention.

도 3은 본 발명의 실시예에 따른 콘크리트댐 기초보강공법에 사용되는 지주를 이용하여 댐이 조성된 상태를 보인 단면도이다.Figure 3 is a cross-sectional view showing a state in which the dam is formed by using the pillar used in the concrete dam foundation reinforcement method according to an embodiment of the present invention.

도 4는 본 발명의 실시예에 따른 콘크리트댐 기초보강공법을 설명하기 위한 흐름도이다.4 is a flowchart illustrating a concrete dam foundation reinforcement method according to an embodiment of the present invention.

♠ 도면의 주요 부분에 대한 부호의 설명 ♠♠ Explanation of symbols for the main parts of the drawing ♠

1 : 천공 3 : 철근1: perforation 3: rebar

10 : 지주 20 : 고정관10: prop 20: fixed tube

21 : 덮개판 23 : 슬롯21: cover plate 23: slot

30 : 그라우팅주입관 31 : 나사부30: grouting injection pipe 31: screw portion

33 : 주입구멍 35 : 테이퍼33: injection hole 35: taper

40 : 작동레버 50 : 지지관40: operating lever 50: support tube

본 발명은 콘크리트댐 기초보강공법에 관한 것으로, 더욱 상세하게는 댐을 건설하기 위하여 지반에 타설되는 콘크리트기초가 지반에 더욱 견고하게 타설되게 할 수 있는 콘크리트댐 기초보강공법에 관한 것이다.The present invention relates to a concrete dam foundation reinforcement method, and more particularly, to a concrete dam foundation reinforcement method that can be more firmly placed on the ground concrete foundation to be built in the dam.

댐은 하천의 물량을 조절하기 위해서 인공적으로 하천을 담수하기 위하여 만든 것으로, 여유가 있을 때 물을 저수하였다가 유량이 부족할 때 방류하는 것이다. 이러한 댐은 기능목적에 따라 단일목적댐과, 다목적댐으로 분류되며, 건설재료 형식에 따라서는 콘크리트댐과, 필댐으로 분류된다.Dams are made to artificially freshen rivers to control the volume of the rivers. The dams store water when there is room and discharge it when the flow rate is insufficient. These dams are classified into single-purpose dams and multi-purpose dams according to their functional purposes, and concrete dams and peel dams depending on the type of construction material.

그리고 우리나라와 같이 건기와 우기에 따라 강수량의 차이가 많은 나라에서는 물의 효율적인 이용을 위하여 여러 가지 형태의 댐이 많이 건설되어 있으며, 현재도 건설을 추진하고 있다. 더욱이, 우리나라는 기후의 특성상 여름철 홍수기인 6월에서 8월 사이에는 단기간 내에 많은 폭우가 쏟아지므로, 홍수피해를 최소화하기 위해서는 댐의 건설이 절실히 요구되고 있다.  In addition, many types of dams have been constructed for efficient use of water in countries with a large amount of precipitation due to dry season and rainy season. Moreover, in Korea, due to the nature of the climate, heavy rains pour out in a short period of time between June and August, which are summer flooding periods, so the construction of dams is urgently needed to minimize flood damage.

일반적으로, 댐을 공사할 때에는 토사와 자갈을 이용하여 성토된 지반을 견고하게 다진 후 그 위에 암괴 등을 축조하여 차수벽공사를 시공하여 건설하고 있다. 댐의 기초를 형성할 때에는 그 기초를 튼튼히 하기 위하여 땅을 굴토한 후 구토된 지반에 콘크리트를 타설하여 기초를 형성하고 그 위에 성토를 하는 것이 일반적이다. 그런데, 콘크리트기초를 단순히 굴토된 지반에 타설만하게 되면 차후에 건 설되는 성토층의 무게에 의하여 기초지반이 침하되는 경우가 발생되고 있는 실정이다.In general, when the dam is constructed, soil walls are made by using soil and gravel, and then the rock walls are constructed by constructing a rock mass on it. When forming the foundation of a dam, it is common to excavate the ground in order to strengthen the foundation, and then cast concrete on the vomited ground to form the foundation and fill the ground. However, when the concrete foundation is simply placed on the excavated ground, the foundation ground is settled by the weight of the fill layer to be constructed later.

본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 댐의 콘크리트기초가 타설되는 지반에 지주를 설치하여 콘크리트기초가 타설되는 지반의 침하를 방지함과 동시에 지반과 콘크리트의 결합력을 향상시킬 수 있는 콘크리트댐 기초보강공법을 제공하는데 있다.The present invention has been made in order to solve the conventional problems as described above, the object of the present invention is to install a strut on the ground on which the concrete foundation of the dam is placed to prevent settlement of the ground on which the concrete foundation is placed and at the same time The purpose of the present invention is to provide a concrete dam foundation reinforcement method that can improve the bonding strength of concrete.

상기한 목적을 달성하기 위하여 본 발명의 실시예에 따른 콘크리트댐 기초보강공법은 댐을 조성하기 위한 콘크리트를 타설할 수 있도록 굴토한 지반에 천공을 형성하고, 상기 천공에 그라우팅주입관이 내장되어 있는 고정관을 삽입하는 단계와; 상기 고정관에서 상기 그라우팅주입관을 상측으로 이동시켜 상기 고정관의 하단부를 외측으로 벌어지게한 후, 상기 그라우팅주입관을 통하여 몰탈을 주입하여 상기 고정관을 지반에 고정하는 단계와; 상기 그라우팅주입관의 상단에 작동레버를 접합시키고, 상기 작동레버에 지지관을 고정한 후, 상기 지지관에 철근을 고정시켜 철근을 배근하는 단계와; 상기 고정관이 삽입된 지반에 콘크리트를 타설할 수 있도록 거푸집을 설치하고, 상기 거푸집의 내부에 콘크리트를 타설하여 양생시킨 후, 양생된 상기 콘크리트의 배면에 흙을 매입하여 옹벽을 형성하는 단계;를 포함한다.Concrete dam basic reinforcement method according to an embodiment of the present invention in order to achieve the above object is to form a perforated ground to be able to pour concrete for forming a dam, the grouting injection pipe is embedded in the perforation Inserting a fixation tube; Moving the grouting injection pipe upward from the fixed pipe to open the lower end of the fixed pipe to the outside, and injecting mortar through the grouting injection pipe to fix the fixed pipe to the ground; Bonding an operation lever to an upper end of the grouting injection tube, fixing a support tube to the operation lever, and fixing reinforcing bars to the support tube to reinforce the rebar; Installing a formwork so as to pour concrete into the ground into which the fixed tube is inserted, and curing the concrete by placing concrete inside the formwork, and embedding soil on the back of the cured concrete to form a retaining wall; do.

상기와 같은 공법으로 콘크리트댐 기초보강공법을 실시하기 위한 댐의 기초보강용 지주의 구조는 콘크리트를 타설하여 댐을 건설하기 위하여 굴토된 지반에 형성되어 있는 천공에 삽입되며, 상측에 나사구멍이 형성된 덮개판이 부착되어 있는 고정관과; 상단부에 상기 덮개판의 나사구멍에 삽입되는 나사부가 형성되어 있고, 하단부는 외측으로 테이퍼지게 형성되어 있으며, 상기 고정관 및 상기 천공의 내부에 그라우팅을 주입할 수 있도록 상기 고정관의 내부에 삽입되어 상기 고정관에서 상하로 일정간격 이동되는 그라우팅주입관과; 상기 그라우팅주입관을 상기 덮개판에서 회전시킬 수 있도록 용접에 의하여 상기 그라우팅주입관의 상단에 접합되어 있는 작동레버; 및 상기 굴토된 지반에 타설되는 콘크리트를 보강할 수 있는 철근을 설치할 수 있도록 상기 철근이 삽입되어 고정되는 홈이 형성되어 있으며, 상기 작동레버의 삽입되어 고정되어 있는 지지관을 포함한다.The structure of the foundation reinforcement strut of the dam for implementing the concrete dam foundation reinforcement method by the above method is inserted into the perforations formed in the excavated ground to construct the dam by pouring concrete, and the screw hole is formed on the upper side. A fixing tube to which a cover plate is attached; The upper end portion is formed with a threaded portion inserted into the screw hole of the cover plate, the lower end is formed to be tapered outward, the fixing tube is inserted into the interior of the fixing tube to inject grouting into the fixing tube and the inside of the perforated fixing tube Grouting injection pipe is moved up and down at a certain interval from the; An operating lever joined to an upper end of the grouting injection pipe by welding so as to rotate the grouting injection pipe on the cover plate; And a groove into which the reinforcing bar is inserted and fixed so as to install reinforcing bars for reinforcing concrete to be poured into the excavated ground, and includes a support tube into which the operating lever is inserted and fixed.

본 발명의 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서, 본 명세서 및 청구범위에 사용된 용어나 단어는 발명자가 그 자신의 발명을 가장 최선의 방법으로 설명하기 위해 용어의 개념을 적절하게 정의할 수 있다는 원칙에 입각하여 본 발명의 기술적 사상에 부합하는 의미와 개념으로 해석되어야만 한다. The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims are defined in the technical spirit of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term in order to explain his invention in the best way. It must be interpreted to mean meanings and concepts.

이하, 본 발명의 실시예에 따른 콘크리트댐 기초보강공법을 첨부된 도면을 참조하여 상세하게 설명한다.Hereinafter, a concrete dam foundation reinforcing method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 1 내지 도 4를 참조하면, 콘크리트댐 기초보강공법은 지반의 천공(1)에 고정관(20)을 삽입하는 단계(S10)와, 몰탈을 주입하여 상기 고정관(20)을 지반에 고정하는 단계(S20)와, 철근(3)을 배근하는 단계(S30)와, 콘크리트 타설 및 옹벽(5)을 형성하는 단계(S40)를 포함한다.1 to 4, the concrete dam foundation reinforcing method is a step (S10) of inserting the fixed tube 20 in the perforation (1) of the ground, and fixing the fixed tube 20 to the ground by injecting mortar (S20), the step (S30) of reinforcing the reinforcing bar (3), and the step of forming a concrete placing and retaining wall (S40).

고정관(20)을 삽입하는 단계(S10)는 댐을 조성하기 위한 콘크리트를 타설할 수 있도록 굴토한 지반에 천공(1)을 형성하고, 상기 천공(1)에 그라우팅주입관(30)이 내장되어 있는 고정관(20)을 삽입한다.Inserting the fixed tube 20 (S10) is to form a perforation (1) in the ground ground to be able to pour concrete for forming a dam, the grouting injection pipe 30 is built in the perforation (1) Insert the fixed tube (20).

지반에 고정관(20)을 고정하는 단계(S20)는 고정관(20)에서 상기 그라우팅주입관(30)을 상측으로 이동시켜 상기 고정관(20)의 하단부를 외측으로 벌어지게 한 후, 상기 그라우팅주입관(30)을 통하여 몰탈을 주입하여 상기 고정관(20) 및 천공(1)에 몰탈을 채워 양생시킨다.Fixing the fixing tube 20 to the ground (S20) is to move the grouting injection tube 30 upward from the fixing tube 20 to open the lower end of the fixing tube 20 to the outside, the grouting injection pipe Mortar is injected through (30) to fill the mortar in the fixed tube 20 and the perforation (1) to cure.

이후, 철근(3)을 배근하는 단계(S30)에서는 상기 그라우팅주입관(30)의 상단에 작동레버(40)를 접합시키고, 상기 작동레버(40)에 지지관(50)을 고정한 후, 상기 지지관(50)에 철근(3)을 고정시킨다. 이때, 지지관(50)에는 철근(3)을 고정할 수 있도록 홈(51)이 형성되어 있다.Thereafter, in step S30 of reinforcing the reinforcing bar 3, the operation lever 40 is bonded to the upper end of the grouting injection pipe 30, and the support tube 50 is fixed to the operation lever 40, and then The reinforcing bar (3) is fixed to the support tube (50). At this time, the support pipe 50 is formed with a groove 51 to fix the reinforcing bar (3).

콘크리트 타설 및 옹벽을 형성하는 단계(S40)에서는 상기 고정관(20)이 삽입된 지반에 콘크리트를 타설할 수 있도록 거푸집을 설치하고, 상기 거푸집의 내부에 콘크리트를 타설하여 양생시킨 후, 양생된 상기 콘크리트의 배면에 흙을 매입하여 옹벽(5)을 형성한다. 옹벽(5)에 의하여 콘크리트가 지지되는 것이다.In the step of forming concrete and retaining wall (S40), the formwork is installed so that the concrete can be placed on the ground into which the fixed tube 20 is inserted, and after curing the concrete in the formwork, the cured concrete The soil is embedded in the back surface of the retaining wall 5 to form. Concrete is supported by the retaining wall (5).

한편, 상기 그라우팅주입관(30)은 상단부가 상기 고정관(20)의 상측으로 노출되도록 내장되어 있다. 이는 상기 그라우팅주입관(30)의 상측에 작동레버(40)를 설치하여 상기 그라우팅주입관(30)을 상기 고정관(20)의 상측으로 이동시킬 때 용이하게 이동시키기 위함이다.On the other hand, the grouting injection pipe 30 is built so that the upper end is exposed to the upper side of the fixing pipe (20). This is to easily move when the operation lever 40 is installed on the upper side of the grouting injection pipe 30 to move the grouting injection pipe 30 to the upper side of the fixing pipe 20.

지금부터는 상기와 같은 공법을 실시하기 위하여 상기 콘크리트댐의 지반에 설치되는 콘크리트 보가용 지주(10)의 구조를 상세히 설명한다.From now on will be described in detail the structure of the concrete beam strut 10 installed in the ground of the concrete dam in order to implement the above-described method.

지주(10)는 굴토된 지반의 천공(1)에 삽입되는 고정관(20)과, 이 고정관(20)에 삽입되는 그라우팅주입관(30)과, 그라우팅주입관(30)에 접합되어 있는 작동레버(40) 및 이 작동레버(40)에 고정되는 지지관(50)을 포함한다.The strut 10 has a fixed tube 20 inserted into the perforated ground 1 of the excavated ground, a grouting injection tube 30 inserted into the fixed tube 20, and an operation lever joined to the grouting injection tube 30. 40 and a support tube 50 fixed to the operation lever 40.

고정관(20)의 하단부에는 그라우팅주입관(30)에 의하여 하단부가 외측으로 벌어지도록 슬롯(23)이 일정간격을 가지도록 형성되어 있으며, 상단부에는 그라우팅주입관(30)이 설치되는 덮개판(21)이 마련되어 있다. 덮개판(21)은 그 직경이 천공(1)의 직경보다 크게 형성되어 있으며, 중앙부에 그라우팅주입관(30)이 결합되는 나사구멍(21a)이 형성되어 있다. 그라우팅주입관(30)은 덮개판(21)의 나사구멍(21a)을 따라 덮개판(21)에서 상하로 이동된다. The lower end of the fixed tube 20 is formed so that the slot 23 has a predetermined interval so that the lower end is opened to the outside by the grouting injection pipe 30, the cover plate 21 is installed on the upper grouting injection pipe 30 ) Is provided. The cover plate 21 has a diameter larger than the diameter of the perforation 1, and a screw hole 21a to which the grouting injection pipe 30 is coupled is formed in the center portion. The grouting injection pipe 30 is moved up and down on the cover plate 21 along the screw hole 21a of the cover plate 21.

그라우팅주입관(30)은 그 상단부에 덮개판(21)의 나사구멍(21a)에 삽입되는 나사부(31)가 형성되어 고정관(20)의 내부에 삽입되어 있으며, 중앙부에 그라우팅을 주입할 수 있도록 주입구멍(33)이 형성되어 있다. 주입구멍(33)으로 그라우팅을 주입하면 고정관(20) 및 천공(1)의 내부에 그라우팅이 충진되어 지주(10)가 지반에 더욱 견고하게 고정되는 것이다.The grouting injection tube 30 has a threaded portion 31 inserted into the screw hole 21a of the cover plate 21 at the upper end thereof and is inserted into the fixing tube 20 so that the grouting can be injected into the center. The injection hole 33 is formed. When the grouting is injected into the injection hole 33, the grouting is filled in the fixed tube 20 and the perforation 1 so that the support 10 is more firmly fixed to the ground.

그라우팅주입관(30)은 고정관(20)에서 상측으로 이동될 때 고정관(20)의 하단부가 외측으로 벌어지도록 그 하단부가 외측으로 테이퍼(35)지게 형성되어 있다. 고정관(20)의 하단부를 외측으로 별어지게 하는 것은 고정관(20) 및 천공(1)에 충진된 그라우팅이 경화된 후 지주(10)가 천공(1)에 더욱 견고하게 고정되게 함이다. 즉, 고정관(20)의 하단부가 외측으로 벌어져 천공(1)에 충진된 그라우팅에 걸리게 되므로, 지주(10)의 고정력이 더욱 향상되는 것이다. Grouting injection pipe 30 is formed so that the lower end of the tapered (35) outward so that the lower end of the fixed tube 20 to the outside when moved upward from the fixed tube (20). What makes the lower end of the fixed tube 20 outward is that the strut 10 is more firmly fixed to the perforated 1 after the grouting filled in the fixed tube 20 and the perforated 1 is cured. In other words, the lower end of the fixing tube 20 is spread outward and is caught in the grouting filled in the perforation 1, so that the fixing force of the support 10 is further improved.

그라우팅주입관(30)의 상측에는 그라우팅주입관(30)을 고정관(20)에서 회전시킬 수 있도록 작동레버(40)가 용접에 의하여 부착되어 있다. 본 실시예에 따른 그라우팅주입관(30)은 작동레버(40)를 회전시킬 수 있는 별도의 회전기구(도시생략)에 의하여 회전된다.An operating lever 40 is attached to the upper side of the grouting injection tube 30 by welding to rotate the grouting injection tube 30 in the fixed tube 20. The grouting injection pipe 30 according to the present embodiment is rotated by a separate rotating mechanism (not shown) capable of rotating the operation lever 40.

작동레버(40)에는 굴토된 지반에 타설되는 콘크리트를 보강할 수 있도록 철근(3)을 설치되는 지지관(50)이 결합되어 있다. 지지관(50)에는 철근(3)이 삽입되도록 홈(51)이 형성되어 있다. 지지관(50)에 의하여 철근(3)의 배근을 용이하게 할 수 있는 것이다. 즉, 철근(3)이 지지관(50)의 홈(51)에 삽입되어 고정되어 있으므로, 철근(3)과 철근(3)을 별도로 고정시킬 필요가 없는 것이다.The operation lever 40 is coupled to the support pipe 50 is installed to the reinforcement (3) to reinforce the concrete to be poured on the excavated ground. The support tube 50 is formed with a groove 51 so that the reinforcing bar 3 is inserted. The support pipe 50 can facilitate the reinforcement of the reinforcing bar (3). That is, since the reinforcing bar 3 is inserted and fixed in the groove 51 of the support tube 50, it is not necessary to fix the reinforcing bar 3 and the reinforcing bar 3 separately.

이상에서 설명한 것은 본 발명을 실시하기 위한 하나의 실시예에 불과한 것으로서, 본 발명은 상기한 실시예에 한정되지 않고, 이하의 특허청구범위에서 청구하는 바와같이 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변경 실시가 가능한 범위까지 본 발명의 기술적 정신이 있다고 할 것이다.What has been described above is only one embodiment for carrying out the present invention, and the present invention is not limited to the above-described embodiment, and the present invention is made without departing from the gist of the present invention as claimed in the following claims. Anyone with ordinary knowledge in this field will have the technical spirit of the present invention to the extent that various modifications can be made.

이상에서 설명한 바와 같이, 본 발명의 실시예에 따른 콘크리트 기초 보강용 지주에 의하면, 댐의 콘크리트기초가 타설되는 지반에 지주가 타설되어 있어 댐의 기초가 타설되는 지반의 침하가 방지될 뿐만 아니라, 지반과 콘크리트의 결합력이 향상되는 효과가 있다.As described above, according to the support for the concrete foundation reinforcement according to the embodiment of the present invention, because the support pillar is placed on the ground on which the concrete foundation of the dam is placed, not only the settlement of the ground on which the foundation of the dam is placed is prevented, The bonding force between the ground and the concrete is improved.

Claims (2)

댐을 조성하기 위한 콘크리트를 타설할 수 있도록 굴토한 지반에 천공을 형성하고, 상기 천공에 그라우팅주입관이 내장되어 있는 고정관을 삽입하는 단계와;Forming a perforation in the ground to be able to pour concrete for forming a dam, and inserting a fixing tube having a grouting injection tube embedded therein; 상기 고정관에서 상기 그라우팅주입관을 상측으로 이동시켜 상기 고정관의 하단부를 외측으로 벌어지게한 후, 상기 그라우팅주입관을 통하여 몰탈을 주입하여 상기 고정관을 지반에 고정하는 단계와;Moving the grouting injection pipe upward from the fixed pipe to open the lower end of the fixed pipe to the outside, and injecting mortar through the grouting injection pipe to fix the fixed pipe to the ground; 상기 그라우팅주입관의 상단에 작동레버를 접합시키고, 상기 작동레버에 지지관을 고정한 후, 상기 지지관에 철근을 고정시켜 철근을 배근하는 단계와;Bonding an operation lever to an upper end of the grouting injection tube, fixing a support tube to the operation lever, and fixing reinforcing bars to the support tube to reinforce the rebar; 상기 고정관이 삽입된 지반에 콘크리트를 타설할 수 있도록 거푸집을 설치하고, 상기 거푸집의 내부에 콘크리트를 타설하여 양생시킨 후, 양생된 상기 콘크리트의 배면에 흙을 매입하여 옹벽을 형성하는 단계;를 포함하는 것을 특징으로 하는 콘크리트댐 기초보강공법.Installing a formwork so as to pour concrete into the ground into which the fixed tube is inserted, and curing the concrete by placing concrete inside the formwork, and embedding soil on the back of the cured concrete to form a retaining wall; Concrete dam foundation reinforcement method characterized in that. 제 1 항에 있어서,The method of claim 1, 상기 그라우팅주입관의 하단에는 외측으로 경사진 테이퍼를 형성하고, 상기 고정관의 하단부에는 상기 테이퍼에 의하여 외측으로 용이하게 벌어지도록 슬롯을 형성하며, 상기 지지관에는 철근이 삽입되는 홈을 형성하는 것을 특징으로 하는 콘크리트댐 기초보강공법.A tapered tapered outward is formed at a lower end of the grouting injection tube, and a slot is formed at the lower end of the fixed tube to easily open outward by the taper, and a groove into which the reinforcing bar is inserted is formed in the support tube. Concrete dam foundation reinforcement method.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101566131B1 (en) * 2014-12-18 2015-11-17 (주)대우건설 Fiber reinforced concrete dam
CN105839659A (en) * 2016-04-14 2016-08-10 中国地质科学院探矿工艺研究所 Debris flow retaining dam base reinforcing method based on composite micro-piles
CN107119705A (en) * 2017-06-19 2017-09-01 中国电建集团贵阳勘测设计研究院有限公司 Concrete toe board foundation reinforcing structure and method placed on unloading rock mass
CN114808861A (en) * 2022-05-20 2022-07-29 四川省水利电力工程局有限公司 Gate dam building prefabricated member structure and construction method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0436022U (en) * 1990-07-20 1992-03-26
KR200234872Y1 (en) 2001-03-10 2001-10-08 이상진 An iron reinforcing bar prop
JP2003119814A (en) 2001-10-15 2003-04-23 Sato Juken:Kk Structure and method for reinforcing foundation structure of building
KR100419146B1 (en) 2001-04-02 2004-02-19 심석래 Rock bolt linking reinforcement equipment
KR100566668B1 (en) 2005-12-09 2006-04-03 주식회사 수성엔지니어링 Reinforcement structure for slope of road canal

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0436022U (en) * 1990-07-20 1992-03-26
KR200234872Y1 (en) 2001-03-10 2001-10-08 이상진 An iron reinforcing bar prop
KR100419146B1 (en) 2001-04-02 2004-02-19 심석래 Rock bolt linking reinforcement equipment
JP2003119814A (en) 2001-10-15 2003-04-23 Sato Juken:Kk Structure and method for reinforcing foundation structure of building
KR100566668B1 (en) 2005-12-09 2006-04-03 주식회사 수성엔지니어링 Reinforcement structure for slope of road canal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101566131B1 (en) * 2014-12-18 2015-11-17 (주)대우건설 Fiber reinforced concrete dam
CN105839659A (en) * 2016-04-14 2016-08-10 中国地质科学院探矿工艺研究所 Debris flow retaining dam base reinforcing method based on composite micro-piles
CN107119705A (en) * 2017-06-19 2017-09-01 中国电建集团贵阳勘测设计研究院有限公司 Concrete toe board foundation reinforcing structure and method placed on unloading rock mass
CN114808861A (en) * 2022-05-20 2022-07-29 四川省水利电力工程局有限公司 Gate dam building prefabricated member structure and construction method thereof
CN114808861B (en) * 2022-05-20 2024-01-26 四川水发建设有限公司 Gate dam building prefabricated member structure and construction method thereof

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