KR100266391B1 - Nail removal type nailling method in digging work - Google Patents

Nail removal type nailling method in digging work Download PDF

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Publication number
KR100266391B1
KR100266391B1 KR1019980019288A KR19980019288A KR100266391B1 KR 100266391 B1 KR100266391 B1 KR 100266391B1 KR 1019980019288 A KR1019980019288 A KR 1019980019288A KR 19980019288 A KR19980019288 A KR 19980019288A KR 100266391 B1 KR100266391 B1 KR 100266391B1
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nail
nailing
hole
work
ground
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KR1019980019288A
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Korean (ko)
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KR19990086347A (en
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김명원
정성필
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정성필
김명원
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D17/00—Excavations; Bordering of excavations; Making embankments
    • E02D17/02—Foundation pits

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

PURPOSE: A nailing method is provided to prevent dropping a soil by constructing excavation of underground and to reduce interference each other by removing the nailing. CONSTITUTION: A nail(20) installed to prevent ground and base rock from dropping in excavating forms a bolt, and contains a fixing bar(21) having a nut screw engaged with the bolt. Then the nail is removed from a ground after nailing by inserting the fixing bar and the nail into a hole(1) while completing a construction. The bolt of the nail and the nut of the fixing bar are square screw shape, round screw shape or triangle screw shape, and the pitch is various according to a purpose. The material of the fixing bar is synthetic resin, iron metal or non-iron metal to easily break or corrode.

Description

굴착공사에서의 제거형 네일링공법Removal nailing method in excavation work

본 발명은 지하굴착공사, 터널공사, 사면(斜面)공사, 옹벽공사 등 각종 굴착공사에서 주위의 암반, 토사 등이 무너지는 것을 방지하기 위하여 주위의 암반, 토사 등에 네일(nail)을 박는 네일링(nailling)공사에 관한 것으로서, 보다 상세하게는 모든 관련공사가 완료되어 주위의 암반, 토사 등이 무너질 염려가 없는 때에 박은 네일을 제거하도록 함으로써, 주위의 땅에 건축 등 또 다른 공사를 할 때 전에 박은 네일로 인하여 굴착공사에 지장을 주지 않도록 하는 굴착공사에서의 제거형 네일링공법에 관한 것이다.The present invention is nailing nailed to the surrounding rock, earth and sand in order to prevent the surrounding rock, earth and sand collapse in various excavation work, such as underground excavation, tunnel construction, slope construction, retaining wall construction It is about nailing work. More specifically, when all related work is completed and the surrounding rock, earth and sand are not likely to collapse, the nail nails should be removed, so that the construction work on the surrounding land before another construction work, etc. Park is related to the removal nailing method in the excavation work that does not interfere with the excavation work due to the nail.

일반적으로 지하굴착공사, 터널공사, 사면공사, 옹벽공사 등 각종 굴착공사를 할 때에는 주위의 암반, 토사 등이 무너지는 것을 방지하기 위하여 주위의 암반, 토사 등에 네일(nail)을 박는 네일링공사를 행한다.Generally, in the case of various excavation works such as underground excavation work, tunnel work, slope work, retaining wall work, nailing work is applied to the surrounding rock, earth and sand in order to prevent the surrounding rock and soil from collapsing. Do it.

예를 들어 건물을 짓기 위하여 흙을 팔 때에 주위의 토사, 암반 등이 무너지지 않도록 일정깊이의 흙을 판 후에 네일을 박고 다시 흙을 파는 작업을 반복하여 행하여 원하는 깊이로 흙을 판다.For example, when digging soil to build a building, the soil is dug up to a certain depth so that the surrounding soil, rocks, etc. are not collapsed.

종래의 네일링공사의 일 실시예를 설명한다.An embodiment of a conventional nailing work will be described.

도 1은 측벽에 다수의 네일을 측방향으로 박은 상태도, 도 2는 도 1에서 하나의 네일에 대한 상세도이다.FIG. 1 is a state diagram in which a plurality of nails are laterally nailed to a side wall, and FIG. 2 is a detailed view of one nail in FIG. 1.

먼저 주위의 흙이 무너지지 않을 정도의 소정 깊이의 흙을 판 후 천공을 할 부분에 천공경보호용 마개를 설치한 후 벽면에 1차로 숏크리트(shotcrete)를 행한다. 다음에 드릴을 이용하여 네일을 박을 구멍(1)을 측방향으로 천공한다. 그리고 나서 네일(2)을 상기 구멍(1)에 집어 넣는데, 네일(2)에 호스(3)(3')를 고정하여 네일(2)과 함께 구멍(1)에 집어 넣는다.First, a soil having a predetermined depth is formed in such a way that the surrounding soil does not collapse, and then, a perforation protective cap is installed at a portion to be drilled, and shotcrete is first performed on the wall surface. Next, a hole is drilled laterally using the drill. The nail 2 is then inserted into the hole 1, and the hose 3 and 3 'are fixed to the nail 2 and together with the nail 2 into the hole 1.

그리고 호스(3)를 통하여 네일(2)주위의 구멍(1)에 시멘트 페이스트, 레진, 시멘트 몰탈 등의 충진제(4)를 1차로 충진(또는 그라우팅(grouting))시킨다. 즉 호스(3)를 통하여서 구멍(1)의 깊은 곳에 충진제(4)를 충진한다.Then, the filler 1 such as cement paste, resin, cement mortar or the like is first filled (or grouted) into the hole 1 around the nail 2 through the hose 3. That is, the filler 4 is filled deep into the hole 1 through the hose 3.

그리고 벽면에 와이어메쉬(5) 등을 설치한 후 벽면에 2차로 숏크리트를 행하고, 호스(3')를 통하여서 구멍(1)의 얕은 곳에 2차로 충진제(4)를 충전한다. 그리고 나서 양생을 한 후에 지압판(6)을 설치하고 네일(2)을 너트(7)로 고정한다.After the wire mesh 5 or the like is installed on the wall surface, shotcrete is secondarily performed on the wall surface, and the filler 4 is secondarily filled in the shallow portion of the hole 1 through the hose 3 '. Then, after curing, the pressure plate 6 is installed and the nail 2 is fixed with the nut 7.

상기와 같이 굴착한 땅의 측벽에 네일(2)을 고정하면 굴착한 땅 주위의 전단력이 네일(2)에 의하여 강화되어 벽이 무너지지 않게 된다.When the nail 2 is fixed to the side wall of the excavated ground as described above, the shear force around the excavated ground is strengthened by the nail 2 so that the wall does not collapse.

그러나 기다란 네일(2)이 주위의 땅을 침범하고 네일(2)은 강도가 강한 것이기 때문에 모든 공사가 완료된 후에, 예를 들어 주위의 대지에 건물을 짓기 위하여 굴착공사를 할 경우에 박혀진 네일(2)에 의하여 굴착공사에 큰 지장을 주게 된다.However, because the long nail (2) invades the surrounding land and the nail (2) is of strong strength, after all work is completed, for example, the nail nailed in the case of an excavation work to build a building on the surrounding ground ( 2) will be a major obstacle to the excavation work.

이와 같이 종래의 네일링공법은 네일링후 모든 공사가 마무리 된 후에도 네일(2)이 땅속에 박혀진 상태 그대로 방치되기 때문에 추후 주위의 대지에 굴착공사를 할 때에 큰 지장을 주는 문제점이 있었다.As described above, the conventional nailing method has a problem in that the nail 2 is left as it is embedded in the ground even after all work is completed after the nailing.

미설명 도면 부호 "8"은 스페이셔로서 네일(2)이 구멍(1)중심부에 위치하도록 하는 것이다. 스페이셔(8)에는 다수의 관통공(미도시)이 형성되어 있기 때문에 충진제(4)가 공급되는 것을 방해하지는 않는다.Unexplained reference numeral 8 denotes a spacer so that the nail 2 is located at the center of the hole 1. Since the spacer 8 is formed with a plurality of through holes (not shown), the filler 4 does not prevent the filler 4 from being supplied.

본 발명은 전술한 종래 기술의 문제점을 해소하기 위하여 안출된 것으로서, 지하굴착공사시 주위의 땅이 무너지는 것을 방지하기 위하여 박은 네일을 관련된 모든 공사가 완료되어 주위의 암반, 토사 등이 무너질 염려가 없는 때에는 박은 네일을 제거하도록 함으로써, 주위의 땅에 건축 등 또 다른 공사를 행할 때 박혀져 있는 네일로 인하여 작업에 지장을 주지 않도록 하는 굴착공사에서의 제거형 네일링공법을 제공하는 것을 그 목적으로 하고 있다.The present invention has been made in order to solve the problems of the prior art described above, in order to prevent the surrounding ground from collapsing during the underground excavation work, all the construction related to the nail nail is completed, there is a fear that the surrounding rock, earth and sand collapse The purpose of the present invention is to provide a removal nailing method in the excavation work in which the nail is removed when it is not there, so that it does not interfere with the work due to the nail nailed in another construction such as construction on the surrounding ground. Doing.

상기 목적을 달성하기 위한 본 발명의 굴착공사에서의 제거형 네일링공법은 굴착공사시 주위의 토사, 암반등이 무너지지는 것을 방지하기 위하여 행하는 것으로서 측벽에 천공을 하고 그 천공된 구멍에 네일을 삽입한 후 그 구멍에 충진제를 충진하여 네일을 고정하는 네일링공법에 있어서, 상기 네일에 숫나선을 형성하고 그 네일의 숫나선과 나사결합하는 암나선이 형성된 고정봉을 구비하여, 천공된 구멍에 상기 나사결합된 네일 및 고정봉을 삽입하여 네일링을 하고 모든 공사가 마무리 되었을 때 네일을 고정봉에서 풀어 지반으로 부터 제거하는 것을 특징으로 한다.Removal type nailing method in the excavation work of the present invention for achieving the above object is to be carried out to prevent the surrounding soil, rock, etc. collapsed during the excavation work is drilled in the side wall and the nail is inserted into the perforated hole In the nailing method for fixing the nail by filling the hole with the filler, the nail is formed with a female rod forming a male spiral and screwed with the male spiral of the nail. Inserting the screw coupled nail and the fixed rod is characterized in that the nailing and removing from the ground by loosening the nail from the fixed rod when all the construction is finished.

도 1은 굴착공사시 종래 네일링(nailling)공법에 의해 측벽에 다수의 네일을 측방향으로 박은 상태도,1 is a state in which a plurality of nails in the side wall by the conventional nailing (nailing) method during the excavation construction,

도 2는 도 1에서 하나의 네일(nail)에 대한 상세도,FIG. 2 is a detailed view of one nail in FIG. 1;

도 3는 본 발명의 네일링공법에 의해 측벽에 박은 네일의 상태도이다.3 is a state diagram of the nail nailed to the side wall by the nailing method of the present invention.

※도면 주요 부분에 대한 부호의 설명※※ Explanation of symbols for main parts of drawing ※

1 : (천공된) 구멍 2 : 네일1: (perforated) hole 2: nail

3, 3': 호스(hose) 4 : 충진제3, 3 ': hose 4: filler

5 : 와이어 메쉬 6 : 지압판5: wire mesh 6: pressure plate

7 : 너트 8 : 스페이셔7: nut 8: spacer

10 : 덮개10: cover

20 : 네일 21: 고정봉20: nail 21: fixed rod

이하 본 발명의 바람직한 실시예를 첨부한 도면을 참조하여 더욱 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3는 본 발명의 네일링공법에 의해 측벽에 박은 네일의 상태도이다.3 is a state diagram of the nail nailed to the side wall by the nailing method of the present invention.

본 발명의 굴착공사에서의 제거형 네일링공법은 전술한 종래 네일링공법과 같이 굴착공사시 주위의 토사, 암반등이 무너지지는 것을 방지하기 위하여 행하는 것이다. 본 발명은 네일링을 하여 모든 공사가 마무리되어 주위의 벽이 무너질 염려가 없을 때에 네일을 제거하는 것을 제외하고는 종래의 네일링공법과 유사하다.The removal nailing method in the excavation work of the present invention is performed to prevent the soil, rock and the like from collapsing during the excavation work as in the conventional nailing method described above. The present invention is similar to the conventional nailing method, except that the nail is removed and all the work is finished to remove the nail when the surrounding wall is not broken.

즉 주위의 흙이 무너지지 않을 정도의 소정 깊이의 흙을 파 낸 후 천공을 할 부분에 천공경보호용 마개를 설치한 후 벽면에 1차로 숏크리트를 행하고, 네일을 박을 구멍(1)을 천공한다.That is, after digging out the soil having a predetermined depth so that the surrounding soil does not collapse, the protective hole stopper is installed on the part to be drilled, and the shotcrete is first performed on the wall, and the hole 1 for nailing is drilled.

그리고 나서 네일(20)을 상기 구멍(1)에 삽입하는데, 네일(20)에는 숫나선이 형성되어 있고, 암나선이 형성된 고정봉(21)이 나사결합되어 있다.Then, the nail 20 is inserted into the hole 1, and the nail 20 is formed with a male spiral, and the fixing rod 21 having a female spiral is screwed.

상기 네일(20)의 숫나선과 고정봉(21)의 암나선은 사각나사, 등근나사, 삼각나사 등의 형상을 할 수 있으며, 또한 그 피치도 사용용도에 따라서 여러 가지로 할 수 있다. 본 발명은 나중에 나사결합을 풀어 고정봉(21)으로 부터 기단란 네일(20)을 제거하여야 하기 때문에 가능한 한 피치를 크게 하는 것이 바람직하다.The male spiral of the nail 20 and the female spiral of the fixing rod 21 may have a shape such as a square screw, a back screw, a triangular screw, and the like, and the pitch may be various depending on the intended use. In the present invention, it is preferable to make the pitch as large as possible because it is necessary to later loosen the screw and remove the base nail 20 from the fixing rod 21.

그리고 고정봉(21)의 재질은 추후에 부식되거나 쉽게 파괴될 수 있도록 합성수지, 요기, 철금속, 비철금속등 강도가 다소 약한 것을 이용한다. 이와 같은 재질을 이용하면 네일(20)을 제거한 후 추후 주위의 대지에 또 다른 공사를 할 때에 쉽게 파괴되기 때문에 그 글착공사에 아무런 지장을 주지 않게 된다.In addition, the material of the fixing rod 21 is a weaker strength, such as synthetic resins, yogis, ferrous metals, non-ferrous metals to be easily corroded or destroyed later. If such a material is used, the nail 20 is removed and then easily destroyed when another construction is performed on the surrounding land, so that it does not interfere with the adhesion work.

또한 고정봉(21)의 외면에는 요철을 형성하여 주위의 충진제와 견고하게 부착하도록 하는 것이 바람직하다.In addition, it is preferable to form an unevenness on the outer surface of the fixing rod 21 so as to be firmly attached to the surrounding filler.

그리고 네일(20) 및 고정봉(21)을 삽입할 때에는 종래와 같이 고정봉(21)의 주위에 호스(3)(3')를 고정하여 함께 구멍(1)에 삽입한다.When the nail 20 and the fixing rod 21 are inserted, the hoses 3 and 3 'are fixed around the fixing rod 21 and inserted into the holes 1 as in the prior art.

다음에 호스(3)를 통하여 네일(2)주위의 구멍(1)에 시멘트 페이스트, 레진, 시멘트 몰탈 등의 충진제(4)를 1차로 구멍(1)의 깊은 곳에 충진(또는 그라우팅)시키고, 벽면에 와이어메쉬(5) 등을 설치한 후 벽면에 2차로 숏크리트를 행하고, 호스(3')를 통하여서 구멍(1)의 얕은 곳에 2차로 충진제(4)를 충전한다. 그리고 나서 양생을 한 후에 지압판(6)을 설치하고 네일(2)을 너트(7)로 고정한다.Next, the filler 1 (cement paste, resin, cement mortar, etc.) is first filled (or grouted) into the hole 1 around the nail 2 through the hose 3, and the wall surface After the wire mesh 5 or the like is installed, shotcrete is secondarily performed on the wall, and the filler 4 is secondarily filled in the shallow portion of the hole 1 through the hose 3 '. Then, after curing, the pressure plate 6 is installed and the nail 2 is fixed with the nut 7.

네일(20)의 끝단부 및 너트(7)에는 덮개(10)를 쓰워서 쇼크리트가 타설되지 않도록 한다.The cover 10 is put on the ends of the nails 20 and the nuts 7 so that the shock concrete is not poured.

구멍(1)내부의 충진제(4)가 굳어지면 고정봉(21)이 그 주위의 충진제(4)에 견고하게 고정된다.When the filler 4 in the hole 1 is hardened, the fixing rod 21 is firmly fixed to the filler 4 around it.

또한 네일(20)이 고정봉(21)에 나사결합되어 있기 때문에 네일(20)이 저절로 빠져 나오지 않는다.In addition, since the nail 20 is screwed to the fixing rod 21, the nail 20 does not come out by itself.

그리고 모든 관련 공사를 마무리하여 주위의 흙벽이 무너질 염려가 없을 때에는 너트(7)를 풀고, 네일(20)을 돌리면서 고정봉(21) 및 지반으로 부터 제거한다.And when all the related work is finished and there is no fear of the earth wall to collapse, loosen the nut (7), while removing the nail 20 while removing from the fixing rod (21) and the ground.

따라서 굴착공사를 한 부분의 주위대지에는 견고한 네일(20)이 제거된 상태가 되고 단지 부식되기 쉽거나 파괴되기 쉬운 고정봉(21)만이 남게 된다.Therefore, the periphery of the part where the excavation work is made, the solid nail 20 is removed and only the fixing rod 21 which is easy to be corroded or destroyed remains.

본 발명은 전술한 바와 같이 나중에 네일(20)을 제거하도록 하는 것을 요지로 하고 있는데, 그외의 네일링작업은 다른 방법을 이용할 수 있음을 당업자에게는 자명한 것이다. 예를 들어 벽면에 숏크리트를 하는 대신에 지지판을 설치할 수도 있다.The present invention is intended to later remove the nail 20 as described above, it will be apparent to those skilled in the art that other nailing operations can be used in other ways. For example, instead of using shotcrete on the wall, support plates may be installed.

이와 같이 본 발명의 굴착공사에서의 제거형 네일링공법은 모든 관련 공사가 마무리되어 주위의 흙이 무너질 염려가 없을 때에 땅속에 박혀져 있는 견고한 네일(20)을 제거하기 때문에 추후에 주위의 대지에 건물을 짓는 등 굴착공사를 할 때에 종래와 같이 땅속에 박혀 있는 견고한 네일로 인하여 공사에 지장을 주는 문제를 해소하는 효과를 발휘한다.As such, the removal type nailing method in the excavation work of the present invention removes the sturdy nails 20 embedded in the ground when all the related work is finished and there is no fear of the surrounding soil collapse. When excavation work, such as building a building, it is effective to solve the problem of obstacles due to the sturdy nail embedded in the ground as in the prior art.

본 발명은 기재된 실시예에 한정하는 것이 아니고, 본 발명의 사상 및 범위를 벗어나지 않고 다양하게 수정 및 변형을 할 수 있음은 이 기술 분야에서 통상의 지식을 가진 자에게는 자명하다. 따라서 그러한 변형예 또는 수정예들은 본 발명의 특허청구범위에 속한다 해야 할 것이다.It is apparent to those skilled in the art that the present invention is not limited to the described embodiments, and that various modifications and changes can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims (1)

굴착공사시 주위의 토사, 암반등이 무너지는 것을 방지하기 위하여 행하는 것으로서 측벽에 천공을 하고 그 천공된 구멍(1)에 네일을 삽입하고 그 구멍(1)에 충진제(4)를 충진하여 네일을 고정하는 네일링공법에 있어서,This is done to prevent the soil and rock from falling down during the excavation work. A hole is drilled in the side wall, a nail is inserted into the perforated hole 1, and a filler 4 is filled in the hole 1 to remove the nail. In the nailing method to fix, 상기 네일(20)에 숫나선을 형성하고 그 네일(20)의 숫나선과 나사결합하는 암나선이 형성된 고정봉(21)을 구비하여, 천공된 구멍(1)에 상기 나사결합된 네일(20) 및 고정봉(21)을 삽입하여 네일링을 한 후 모든 공사가 마무리되어 벽이 무너질 우려가 없을 때에 상기 네일(20)을 고정봉(21)에서 풀어 지반으로 부터 제거하는 것을 특징으로 하는 굴착공사에서의 제거형 네일링공법.The nail 20 is provided with a fixing rod 21 having a male spiral which forms a male spiral in the nail 20 and is screwed with a male spiral of the nail 20, and the screw 20 is screwed into the perforated hole 1. And nailing by inserting the fixing rod 21 and when the construction is finished and there is no fear that the wall collapses, the excavation characterized in that the nail 20 is released from the fixing rod 21 and removed from the ground. Removal nailing method in construction.
KR1019980019288A 1998-05-27 1998-05-27 Nail removal type nailling method in digging work KR100266391B1 (en)

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Publication number Priority date Publication date Assignee Title
KR101543549B1 (en) * 2015-03-11 2015-08-10 경북대학교 산학협력단 System and method for measuring slope using landfill type multi-fuction sensor

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KR100395351B1 (en) * 2000-12-07 2003-08-21 (주) 페니엘이엔씨 Method for spiling construction
KR100842372B1 (en) * 2007-03-09 2008-06-30 극동엔지니어링(주) Pretension soil nail method of top-down

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101543549B1 (en) * 2015-03-11 2015-08-10 경북대학교 산학협력단 System and method for measuring slope using landfill type multi-fuction sensor

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