KR100698840B1 - A ground reinforcement construction method using empty screw type anchor bolt having hole itself and the same - Google Patents

A ground reinforcement construction method using empty screw type anchor bolt having hole itself and the same Download PDF

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KR100698840B1
KR100698840B1 KR1020050041547A KR20050041547A KR100698840B1 KR 100698840 B1 KR100698840 B1 KR 100698840B1 KR 1020050041547 A KR1020050041547 A KR 1020050041547A KR 20050041547 A KR20050041547 A KR 20050041547A KR 100698840 B1 KR100698840 B1 KR 100698840B1
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South Korea
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hollow
hole
screw anchor
ground
hollow screw
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KR1020050041547A
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Korean (ko)
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KR20060119029A (en
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김성철
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김성철
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/74Means for anchoring structural elements or bulkheads
    • E02D5/80Ground anchors
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0004Synthetics
    • E02D2300/0018Cement used as binder
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00Materials
    • E02D2300/0046Foams
    • E02D2300/0048PU

Abstract

본 발명은 전통 토목 또는 건축 토목에서 흔히 발생되는 절토 사면 및 터널갱구부와 연약지반내의 터널 등의 보강공사를 보다 간편하고 더욱 견고하고 안전하게 시공설치 할 수 있도록 하기 위하여 제안된 지반 보강 시공용 자천공 중공나사식 앵커본체에 관한 것으로, 더욱 상세하게는 전단부에 분출공(32)을 뚫은 일회용 비트(30)와 전체 길이의 둘레부에 나사가 형성된 중공형볼트(12)와 일방향으로만 압출되는 압출공(22)을 형성한 밸브(24) 구조의 체결구(20)로서 결합 구성한 중공나사식 앵커본체(10)로서 대상지반(1)내에 중공홀(3)을 천공함과 동시에 상기 중공나사식 앵커본체(10)를 삽입설치한 상태에서 중공홀(3)의 입구를 발포우레탄(급결제)로 코킹한 후 중공형볼트(12)의 주입구멍(14)으로 시멘트밀크(그라우트재)를 고압으로 주입함으로써 일회용 비트(30)와 체결구(20)의 분출공(32)과 압출공(22)을 통하여 중공홀(3)의 내부를 가압충전하면서 지반(1)을 보강하는 시공 설치작업을 일라인공정작업으로 완료하므로써 간편하고 용이한 시공작업으로 시공기간의 단축과 공사비용을 절감하여 경제성을 향상시킬 수 있도록 함을 특징으로 한 것임.The present invention is a ground reinforcement construction self-poration proposed to enable easier and more robust and safe installation of reinforcing works such as cut slopes and tunnel shafts and tunnels in soft ground, which are commonly generated in traditional civil engineering or architectural engineering It relates to a hollow screw anchor body, and more specifically, the single-use bit 30 and the hollow bolt 12 is formed in the circumference of the full length and the hollow bolt 12 is formed in one direction and extruded only in one direction. The hollow screw anchor body 10, which is configured as a fastener 20 having a valve 24 structure in which an extruded hole 22 is formed, is bored and the hollow screw 3 is drilled in the target ground 1 at the same time. In the state in which the anchor body 10 is inserted and installed, the inlet of the hollow hole 3 is caulked with urethane foam (fastener), and then cement milk (grout material) is injected into the injection hole 14 of the hollow bolt 12. Disposable rain by injection at high pressure The installation work for reinforcing the ground 1 while pressurizing and filling the inside of the hollow hole 3 through the ejection hole 32 and the extrusion hole 22 of the 30 and the fastener 20 is a one-line process work. By completing a simple and easy construction work, it is possible to shorten the construction period and reduce the construction cost, thereby improving the economics.

Description

지반 보강 시공용 자천공 중공나사식 앵커본체{A ground reinforcement construction method using empty screw type anchor bolt having hole itself and the same}A ground reinforcement construction method using empty screw type anchor bolt having hole itself and the same}

도1은 본 발명의 시공 설치상태에서 앵커본체의 분리 사시도.1 is an exploded perspective view of the anchor body in the installation installation state of the present invention.

도2는 도1의 결합 단면도.2 is a cross sectional view of FIG.

도3은 본 발명의 중공나사식 앵커본체와 체결구의 결합상태를 발췌하여 보인 단면도.Figure 3 is a cross-sectional view taken from the coupling state of the hollow screw anchor body and the fastener of the present invention.

도4는 본 발명의 중공나사식 앵커본체의 전단부와 비트의 착설상태를 발췌하여 보인 단면도.Figure 4 is a cross-sectional view showing the installation state of the front end and the bit of the hollow screw anchor body of the present invention.

도5a는 본 발명의 중공나사식 앵커본체의 후단부로 결합 구성된 부직포 및 부착판을 보인 발췌단면도.Figure 5a is a cross-sectional view showing a non-woven fabric and a mounting plate coupled to the rear end of the hollow screw anchor body of the present invention.

도5b는 본 발명의 중공나사식 앵커본체의 후단부로 결합 구성된 부직포 내부로 급결제를 주입하여 코킹한 상태의 발췌단면도.Figure 5b is an excerpted cross-sectional view of a state in which a coking agent is injected and caulked into a nonwoven fabric composed of a rear end of the hollow screw anchor body of the present invention.

도6a 내지 도6e는 본 발명의 시공과정을 보인 단면도.6a to 6e are sectional views showing the construction process of the present invention.

* 도면의 주요부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1 지반 3 중공홀 5 시멘트밀크1 Soil 3 Hollow Hole 5 Cement Milk

10 중공나사식 앵커본체 12 중공형볼트 13 끼움부10 Hollow thread anchor body 12 Hollow bolt 13 Fitting part

14 주입구멍 20 체결구 22 일방향 압출공14 Injection hole 20 Fastener 22 One-way extrusion hole

23 개방공 24 밸브 26 보조결합구23 Opening hole 24 Valve 26 Auxiliary fitting

28 고정볼트 30 비트 32 분출공28 Fixing bolt 30 bit 32 Blower

38 고정볼트 40 자루형포대 42 결착띠38 Fixing bolts 40 Bags 42 Fastening straps

44 압축링 45 끼움공 46 묶음띠44 Compression ring 45 Fitting 46 Bundle

47 팩충전호스 48 코킹부 49 급결제47 Pack filling hose 48 Caulking part 49 Quick payment

50 부착판 51 활형요입부 52 절개부50 Mounting plate 51 Slide recess 52 Incision

54 결착너트54 Tightening Nut

본 발명은 전통 토목 또는 건축 토목에서 흔히 발생되는 절토 사면 및 터널갱구부와 연약지반내의 터널 등의 보강공사를 보다 간편하고 더욱 견고하고 안전하게 시공설치 할 수 있도록 하기 위하여 제안된 지반 보강 시공용 자천공 중공나사식 앵커본체에 관한 것으로, 더욱 상세하게는 전단부에 분출공을 뚫은 일회용 비트와 전체 길이의 둘레부에 나사가 형성된 중공형볼트와 일방향 압출공을 형성한 밸브구조의 체결구로서 결합 구성한 중공나사식 앵커본체로서 대상지반 내에 중공홀을 천공함과 동시에 삽입설치 한 상태에서 중공홀의 입구를 발포우레탄(급결제)으로 코킹한 후 중공형볼트의 주입구멍을 통하여 시멘트밀크(그라우트재)를 고압으로 주입함으로써 일회용 비트의 분출공과 체결구의 압출공을 통하여 중공홀의 내부를 가압충전하면서 지반을 보강하기 위하여 본 발명의 중공나사식 앵커본체의 좌·우회전에도 불구하고 중공나사식 앵커본체로 부터 일회용 비트가 이탈되지 않은 장치와; 그라우트재(시멘트밀크)와 완벽한 부착력을 보장할 수 있는 중공형볼트의 둘레부에 형성한 나사구조와; 중공형볼트를 연결할 경우에도 시멘트밀크의 역류를 방지할 수 있는 일방향 밸브구조의 체결구장치 및 중공형볼트의 나사부와 결착너트를 이용하여 개선된 수밀성을 발휘하는 코킹장치의 결합 구성으로 시공작업을 일라인공정작업으로 완료하므로써 간편하고 용이한 시공작업으로 시공기간의 단축과 공사비용을 절감하여 경제성을 향상시킬 수 있도록 함과 지반을 보강 개선하여 지반의 지지강도를 높일 수 있도록 제안된 것이다.The present invention is a ground reinforcement construction self-poration proposed to enable easier and more robust and safe installation of reinforcing works such as cut slopes and tunnel shafts and tunnels in soft ground, which are commonly generated in traditional civil engineering or architectural engineering The hollow screw anchor body, and more specifically, a combination of a disposable bit having a blowout hole in the front end, a hollow bolt having a screw formed in the circumference of the entire length and a valve structure in which a one-way extrusion hole is formed. As a hollow screw anchor body, the hollow hole is inserted into the target ground and inserted and installed at the same time. The hollow hole is caulked with foam urethane (fastener), and then cement milk (grout material) is injected through the injection hole of the hollow bolt. By injecting at high pressure, the inside of the hollow hole is pressurized through the ejection hole of the disposable bit and the extrusion hole of the fastener. Apparatus that the disposable bit is not separated from the hollow screw anchor body despite the left and right rotation of the hollow screw anchor body of the present invention to reinforce the ground; A screw structure formed at the periphery of the hollow bolt capable of ensuring perfect adhesion with the grout material (cement milk); Even when connecting the hollow bolts, the construction work is carried out by the combination of the fastening device of the one-way valve structure that prevents the backflow of cement milk and the combination of the caulking device showing the improved water tightness by using the screw part and the fastening nut of the hollow bolts. It is proposed to enhance the support strength of the ground by improving the economics by shortening the construction period and reducing the construction cost by the simple and easy construction work by completing the one-line process work.

종래에 전통 토목 또는 건축 토목에서 발생되는 절토 사면 및 터널 갱구부 등을 보강시에는 지반에 중공홀을 형성하기 위하여 케이싱 등의 별도의 천공장치를 이용하여 중공홀을 뚫은 다음 지반보강용 철근이나 앵커에 시멘트몰탈의 주입장치를 결합하여 중공홀에 삽입설치하고 시멘트몰탈과 같은 그라우팅재의 채움을 실시하여 보강하였다.Conventionally, when reinforcing cut slopes and tunnel shafts generated from traditional civil engineering or building civil engineering, drill hollow holes using separate fabric mills such as casings to form hollow holes in the ground, and then reinforce or anchor the ground. The cement mortar injection device was inserted into the hollow hole, and the grouting material such as cement mortar was filled and reinforced.

그러나 상기와 같은 종래의 지반 보강을 위한 시공방법은 지반을 천공한 다음 지반보강용 철근이나 앵커 또는 별도의 케이싱을 사용하고 시멘트몰탈과 같은 그라우팅재의 채움을 실시하여야 되므로 작업공정이 많아지게 되어 작업이 번거롭고 공사기간이 길어지게 되어 공사비용이 많아 지게 되는 결점이 있었다.However, in the conventional construction method for reinforcing the ground, the work process is increased because the ground must be filled with grouting materials such as cement mortar, and then reinforced with ground reinforcing bars or anchors or separate casings. It was cumbersome and the construction period was long, and the cost of construction was high.

따라서, 본 발명은 상기와 같은 종래의 결점을 해소하기 위하여 중공나사식 앵커본체를 형성하는 중공형볼트를 일방향 압출공을 형성하는 밸브구조의 체결구로 결합 연결할 수 있도록 하며, 후방부에는 선단부를 결착띠로 결착 묶음시키고, 후단부는 끼움공을 뚫은 압축링을 개재하여 묶음띠로 묶음 고정시키므로서, 자루형포대가 설치되도록 하는 구성으로써, 지반의 보강공사를 간편하고, 용이하며 견고하게 일라인공정작업으로 시공을 완료할 수 있도록 함으로써 공사기간을 단축하여 공사비용을 절감할 수 있도록 함에 목적이 있다.Therefore, the present invention allows to connect the hollow bolt forming the hollow screw anchor body to the fastener of the valve structure to form a one-way extrusion hole in order to solve the conventional drawback as described above, the front end is fastened to the end portion Binding bundle by band, and rear end is fixed by bundle band through the compression ring through the fitting hole, so that the bag bag is installed, so that the reinforcement work of the ground is simple, easy and firm construction by one-line process work. The purpose of this is to shorten the construction period and to reduce construction costs.

본 발명은 전통 토목 또는 건축 토목에서 흔히 발생되는 절토 사면 및 터널 갱구부와 연약지반의 내부에 뚫어 설치한 중공홀(3)의 내부에 그라우트재(시멘트밀크)를 가압 충전하고, 전단부에 수개의 분출공(32)을 뚫은 일회용 비트(30)를 착설하고, 전체 길이의 둘레부로 나사가 형성된 적정 길이의 중공형볼트(12)로 형성된 통상의 구조에 있어서, 상기 각 중공형볼트(12)를 일방향으로만 압출되는 압출공(22)을 뚫은 일방향밸브(24) 구조의 체결구(20)로서 결합 연결하여 형성되는 중공나사식 앵커본체(10)를 별도의 회전장치(도시생략)에 물림시켜 중공나사식 앵커본체(10)를 회전시키면서 터널의 갱구부나 지반(1)내에 중공홀(3)을 천공한 다음 중공나사식 앵커본체(10)의 후단부로 자루형포대(40)를 개재하여 전단부와 후단부를 결착띠(42)와 끼움공(45)이 형성된 압축링(44) 및 묶음띠(46)로서 묶음시켜 상기 자루형포대(40)의 내부로 팩충전호스(47)를 삽입 고정 설치하여 급결제를 주입 충전한 다음, 그라우트재(시멘트밀크)를 중공홀(3)의 내부로 가압충전시켜 중앙부에 활형요입부(51)와 둘레부에 수개의 절개부(52)를 형성한 구조의 부착판(50)을 결착너트(54)로 결착함으로써, 지반(1)의 천공작업과 중공나사식 앵커본체(10)의 삽입작업을 일라인공정작업으로 동시에 시행하면서 시공을 완료할 수 있도록 함에 특징이 있다.The present invention is pressurized and filled with grout material (cement milk) to the inside of the hollow hole (3) drilled in the cut slope and tunnel shaft portion and the soft ground that is commonly generated in traditional civil engineering or architectural civil engineering, In the conventional structure formed of a hollow bolt 12 of a suitable length having a disposable bit 30 drilled through the two ejection holes 32 and a screw is formed around the entire length, the hollow bolts 12 The hollow screw anchor body 10 formed by coupling and connecting as a fastener 20 of the one-way valve 24 structure through the extrusion hole 22 that is extruded only in one direction is bitten by a separate rotating device (not shown). While rotating the hollow screw anchor body (10) while drilling a hollow hole (3) in the shaft or ground (1) of the tunnel through the bag-shaped bag (40) to the rear end of the hollow screw anchor body (10) A binding band 42 and the fitting hole 45 is formed in the front and rear ends Bundled together with the shaft ring 44 and the tie strip 46, the pack filling hose 47 is inserted into the bag-shaped bag 40 and fixedly installed to inject and fill the fastener, and then the grout material (cement milk) is hollowed out. By attaching the attachment plate 50 of the structure which pressurized and filled the inside of the hole 3 with the bow-shaped indentation part 51 in the center part, and the several incision part 52 in the periphery part with the binding nut 54, It is characterized in that the drilling work of (1) and the insertion work of the hollow screw-type anchor main body 10 can be carried out at the same time as one-line process work to complete the construction.

이하 첨부된 도면을 참고하여 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도1 내지 도3에 나타낸 바와 같이, 본 발명의 중공나사식 앵커본체(10)는 전체길이의 둘레부로 나사가 형성되고 내부는 속이 빈 중공구조의 중공형볼트(12)를 설계 조건에 따라 뚫게 되는 중공홀(13)의 깊이가 되도록 체결구(20)를 수개(1∼2 개) 결합 연결할 수 있도록 구성한다. As shown in Figures 1 to 3, the hollow screw anchor body 10 of the present invention is a screw is formed in the circumference of the entire length and the inner hollow hollow bolt 12 of the hollow hollow structure according to the design conditions The fastener 20 is configured to be coupled to several (1 to 2) to be the depth of the hollow hole 13 to be.

상기 체결구(20)는 도3에 나타낸 바와 같이, 중공형볼트(12)의 둘레부에 나사를 물림시키는 보조결합구(26)의 둘레부에 압출공(22)을 개폐하여 개방공(23)과 연통시키는 일방향밸브(24)를 내설시킨 구조의 체결구(20)를 고정볼트(28)로써 결착 고정하여 결합 구성하였다.As shown in Figure 3, the fastener 20 is opened and closed by opening and closing the extrusion hole 22 in the circumference of the auxiliary coupling hole 26 to bite the screw in the circumference of the hollow bolt 12 The fastener 20 of the structure in which the one-way valve 24 communicated with the) is fixed and fixed by the fixing bolt 28.

이와 같이 수개의 중공형볼트(12)와 체결구(20)로 결합 구성된 중공나사식 앵커본체(10)의 전단부로는 도4에 나타낸 바와 같이, 각형의 끼움부(13)가 형성되고 둘레부의 각 방향으로 분출공(32)을 형성시킨 일회용 비트(30)를 끼움 결합시켜 별도의 고정볼트(38)로써 결착 고정하므로써, 일회용 비트(30)가 중공나사식 앵커본체(10)의 좌측 또는 우측의 어느 방향으로 회전하여도 천공시에 끼움부(13)로부터 탈이 되지 않는다.As shown in FIG. 4, the front end portion of the hollow screw anchor body 10, which is composed of several hollow bolts 12 and fasteners 20, is formed with a rectangular fitting portion 13, By fitting the disposable bit 30 having the ejection hole 32 formed in each direction to bind and fix it with a separate fixing bolt 38, the disposable bit 30 is left or right of the hollow screw anchor body 10. Rotation in either direction does not remove the fitting portion 13 during drilling.

삭제delete

상기와 같이 전단부로 일회용 비트(30)가 끼움 결합된 중공나사식 앵커본체(10)의 후단부로는 도5a 내지 도5b에 나타낸 바와 같이, 후방에는 결착띠(42)를, 전방에는 끼움공(45)이 형성된 압축링(44) 및 묶음띠(46)에 의해 고정되는 자루형포대(40)를 묶음자루형이 되도록 결합 구성하였다.As shown in Figures 5a to 5b, the rear end of the hollow screw anchor body 10, the disposable bit 30 is fitted into the front end as described above, the binding band 42 in the rear, the fitting hole in the front ( 45 is formed by the compression ring 44 and the bag bag 46 is fixed by the tie strip 46 is configured to be a bundle bag.

또, 상기와 같이 자루형포대(40)를 묶음 결합시켜 구성된 중공나사식 앵커본체(10)의 후단으로는 중앙부에 활형요입부(51)와 둘레부로 수개의 절개부(52)를 형성한 부착판(50)을 개재하여 결착너트(54)로 결착 고정함으로써 본 발명의 중공나사식 앵커본체(10)를 중공홀(3)에 삽입설치하는 작업이 완료된다.In addition, the rear end of the hollow screw-type anchor body 10 formed by combining the bag-shaped bag 40 as described above is attached to form a central inlet portion 51 and several incisions 52 in the circumference portion By binding and fixing with the binding nut 54 via the plate 50, the operation of inserting the hollow screw anchor body 10 of the present invention into the hollow hole 3 is completed.

상기와 같이 중공홀(3)내에 중공나사식 앵커본체(10)의 삽입설치 작업이 완료되면, 자루형포대(40)의 내부에 개재하는 압축링(44)에 뚫어 형성한 끼움공(45)으로 통상의 팩충전호스(47)를 삽입시켜 팩충전호스(47)를 통하여 급결제(발포우레탄)(49)를 주입하여 줌으로써, 자루형포대(40)의 내부로 충전되는 급결제(49)에 의하여 자루형포대(40)가 부풀어 오르면서 급결되는 코킹부(48)가 형성되어 중공홀(3)의 입구를 폐방하게 된다.When the installation of the hollow screw anchor body 10 is completed in the hollow hole 3 as described above, the fitting hole 45 formed by drilling in the compression ring 44 interposed in the inside of the bag-shaped bag 40 By inserting a normal pack filling hose 47 and injecting a quick charging agent (foam urethane) 49 through the pack filling hose 47, to the quick filling agent 49 to be filled into the bag-shaped bag (40) As a result, the caulk bag 40 is swollen while the caulking portion 48 is formed, thereby closing the inlet of the hollow hole 3.

상기와 같이 중공홀(3)의 입구가 코킹부(48)에 의해 막혀진 상태에서 중공나사식 앵커본체(10)의 후단부로 형성된 주입구멍(14)에 주입장치(도시생략)를 결합하여 시멘트밀크(5)를 고압으로 주입함으로써, 중공홀(3)의 내부는 시멘트밀크(5)로 가압충전 되는 것이다.When the inlet of the hollow hole 3 is blocked by the caulking unit 48 as described above, the injection device (not shown) is coupled to the injection hole 14 formed at the rear end of the hollow screw anchor body 10 to cement. By injecting the milk 5 at high pressure, the inside of the hollow hole 3 is pressurized and filled with cement milk 5.

상기 주입구멍(14)에 결합되어 시멘트밀크(5)를 고압으로 주입하는 주입장치(도시생략)는 공지 결합방법에 의하여 결합 설치된 것이므로 구체적인 설명은 생략한다.The injection device (not shown) coupled to the injection hole 14 and injecting the cement milk 5 at a high pressure is installed by a well-known coupling method, so a detailed description thereof will be omitted.

상기와 같이 결합 구성된 본 발명의 중공나사식 앵커본체(10)의 시공설치작업을 상세히 설명하면 다음과 같다.Referring to the construction installation work of the hollow screw anchor body 10 of the present invention configured as described above in detail as follows.

먼저, 도6a 내지 6c에 나타낸 바와 같이, 전단부로 수개의 분출공(32)이 뚫어 설치된 일회용비트(30)를 결착하여 설치한 적정 길이의 중공형볼트(12)의 후단부를 별도의 회전장치(도시생략)에 물림시켜 천공하고자 하는 지반(1)의 내부로 회전 진입시키면서 지반(1)의 내부로 설계된 깊이의 중공홀(3)을 뚫음과 동시에 중공나사식 앵커본체(10)를 삽입 설치한다.First, as shown in Figures 6a to 6c, the rear end portion of the hollow bolt 12 of the appropriate length, which is installed by binding the disposable bit 30 installed through the several ejection holes 32 to the front end of the separate rotary device ( While inserting the hollow screw type anchor body 10 at the same time as the hollow hole (3) of the designed depth into the ground (1) while entering the ground (1) to be punched by the bite (not shown) .

또한, 지반(1)의 여건에 따라 중공홀(3)의 깊이를 더욱 깊게 뚫을 경우에는 상기와 같이 중공홀(3)에 삽입된 상태의 상기 중공나사식 앵커본체(10)의 후단부로 도6b에 나타낸 바와 같이, 중공나사식 앵커본체(10)를 형성하는 또 다른 중공형볼트(12)를 체결구(20)로 결합 연결시켜 형성되는 중공나사식 앵커본체(10)로서 중공홀(3)을 뚫음과 동시에 삽입 설치한 다음, 상기 중공나사식 앵커본체(10)의 후단부로 자루형포대(40)를 결착띠(42)와 끼움공(45)을 뚫어 형성된 압축링(44) 및 묶음띠(46)에 의해 묶음자루형이 되도록 결합 설치한다.In addition, when the depth of the hollow hole (3) is drilled more deeply in accordance with the condition of the ground (1) to the rear end of the hollow screw-type anchor body (10) inserted into the hollow hole (3) as shown in Figure 6b As shown in the hollow screw anchor body 10, which is formed by coupling and connecting another hollow bolt 12 forming the hollow screw anchor body 10 with the fastener 20, the hollow hole 3 After inserting and installing at the same time, the compression ring 44 and the bundle band formed by drilling the bag 42 and the fitting hole 45 to the bag-shaped bag 40 to the rear end of the hollow screw anchor body (10) ( 46) is installed to be bundled type.

이때, 상기 중공나사식 앵커본체(10)의 후단부의 둘레부로 둘러 씌움되는 상기 자루형포대(40)는 상기 중공나사식 앵커본체(10)의 후단부측에서 전단부측으로 끼움시켜 후단부측으로 위치한 일측 끝단을 결착띠(42)로써 결착 묶음시킨 다음, 상기 결착띠(42)로부터 후단부측으로 적정 간격을 유지하는 위치에 압축링(44)을 끼워고정한 후, 상기 자루형포대(40)를 후단부측으 타측단이 상기 압축링(44)에 덮어 씌워지도록 위치하여 압축링(44)의 둘레부를 묶음띠(46)로써 묶음시켜 고정 설치하므로써, 도6c와 같이 자루형포대(40)가 묶음자루형으로 고정 설치된다.At this time, the bag-shaped bag 40 is surrounded by the circumferential portion of the rear end of the hollow screw anchor body 10 is fitted to the front end side from the rear end side of the hollow screw anchor body 10 is located to the rear end side. After binding one end to the binding band 42, the compression ring 44 is fixed to a position that maintains a proper distance from the binding belt 42 to the rear end side, and the bag-shaped bag 40 is the rear end The other end is positioned so as to be covered with the compression ring 44, and the circumference of the compression ring 44 is bundled and fixed by the bundle band 46, so that the bag-shaped bag 40 is fixed in a bag shape as shown in FIG. 6C. Is installed.

상기와 같이 설계된 깊이로 삽입된 상태에서 도6d에 나타낸 바와 같이, 상기 팩충전호스(47)를 통하여 급결제(발포우레탄)(49)를 주입하여 줌으로써, 자루형포대(40)가 부풀림되면서 코킹부(48)가 형성되어 중공홀(3)의 입구를 코킹하게 된다.As shown in Figure 6d in the inserted depth as designed above, by injecting a fastener (foam urethane) 49 through the pack filling hose 47, the bag-shaped bag 40 is inflated while caulking A portion 48 is formed to caulk the inlet of the hollow hole (3).

상기와 같이 중공홀(3)의 입구가 코킹부(48)에 의해 막혀진 상태에서 도6e에 나타낸 바와 같이, 중공나사식 앵커본체(10)의 후단부로 형성된 주입구멍(14)으로 결합시키는 주입장치(도시생략)에 의하여 시멘트밀크(5)를 고압 주입함으로써, 중공홀(3)의 내부가 시멘트밀크(5)로 가압 충전되면서 지반(1)의 천공작업과 중공나사식 앵커본체(10)를 중공홀(3)에 삽입 설치하는 작업이 일라인공정작업으로 동시에 완료된다.As shown in FIG. 6E in the state where the inlet of the hollow hole 3 is blocked by the caulking portion 48, the injection is coupled to the injection hole 14 formed at the rear end of the hollow screw anchor body 10. By injecting the cement milk 5 by a high pressure device (not shown), the inside of the hollow hole 3 is pressurized and filled with cement milk 5, and the drilling work of the ground 1 and the hollow screw-type anchor body 10 are shown. Inserting and installing the hollow hole 3 is completed at the same time as a one-line process work.

상기와 같이 시멘트밀크(5)가 충전된 상태의 중공나사식 앵커본체(10)의 후단으로 중앙부에 활형요입부(51)와 수개의 절개부(52)를 형성한 부착판(50)을 개재하여 결착너트(54)로서 결착시킴으로써, 지반(1)의 천공작업과 중공나사식 앵커본체(10)의 시공작업이 모두 완료되는 것이다.As described above, through the attachment plate 50 in which the bow-shaped indentation part 51 and several incisions 52 are formed at the center of the hollow screw anchor body 10 in the state where the cement milk 5 is filled. By binding as a binding nut 54, both the drilling work of the ground (1) and the construction work of the hollow screw anchor body (10) is completed.

상기 부착판(50)의 중앙부에 형성한 활형요입부(51)는 지반(1) 표면의 경사 정도에 구애됨이 없이 결착 고정작업을 용이하게 할 수 있으며, 또한, 중공나사식 앵커본체(10)가 시공 완료되어 축조된 상태의 경사면에는 화초나 식물의 씨앗을 혼합하는 식생토(도시생략)를 부착판(50)에 형성한 절개부(52)를 통하여 부착 설치하여 주므로써, 화초나 식물이 뿌리발을 하게 되어 더욱 견실한 식생보호층으로서 안전성을 지속적으로 유지할 수 있는 것이다.The bow-shaped indentation portion 51 formed at the center portion of the attachment plate 50 can facilitate the fastening and fixing operation without being limited to the degree of inclination of the surface of the ground 1, and also, the hollow screw anchor body 10 ) Is installed and installed on the inclined surface through the incision 52 formed on the attachment plate 50, the vegetation soil (not shown) to mix the seeds of plants or plants, This rooting will continue to maintain safety as a more robust vegetation protection layer.

이와 같이 된 본 발명은 일정 길이의 중공형볼트나 또는 수개(2∼3개)의 중공형볼트를 체결구로서 결합 연결하며, 전단부로 분출공을 뚫은 일회용비트를 결착하여 형성한 중공나사식 앵커본체를 결합 구성하여, 시공시에 중공나사식 앵커본체의 전단부로 결착된 일회용 비트가 이탈되는 일이 없이 안전하게 회전하면서 지반 내에 중공홀을 천공함과 동시에 중공홀의 내부 설계된 깊이로 삽입되도록 함으로써, 지반의 천공 및 중공나사식 앵커본체의 삽입 설치작업을 간편하게 할 수 있으며, 중공홀 입구를 급결제로서 코킹한 후 자루형포대의 내부에 급결제를 충전하여 부풀림되므로써, 중공홀의 입구를 코킹하여 막히게 되고, 중공형볼트에 형성된 주입구멍으로 시멘트밀트를 고압으로 중공홀의 내부를 가압 충전하여 줌으로써, 시공작업이 완료되는 것으로, 중공형볼트와 중공나사식 앵커본체로서 지반의 천공작업과 삽입 설치작업을 일라인공정작업으로 동시에 시행할 수 있어 시공 작업을 간편하고 용이하게 할 수 있으며, 시공기간을 단축하여 경제성을 향상할 수 있으며, 아울러, 지반이 더욱 견고하고 안전하여 시공 후의 품질 및 지지강도를 높일 수 있는 효과가 있다.The present invention as described above is a hollow screw anchor formed by binding a hollow bolt of a predetermined length or several (2 to 3) hollow bolts as fasteners, by binding a disposable bit through the blowout hole to the front end portion By combining the main body, the disposable bit fastened to the front end of the hollow screw anchor body at the time of construction is securely rotated, while drilling the hollow hole in the ground and inserting it into the designed depth of the hollow hole at the same time, The installation and installation of the hollow body anchor body can be easily done, and the hollow hole entrance is caulked as a fastener, and the filler is inflated by filling the fastener inside the bag. The construction work is completed by pressurizing and filling the inside of the hollow hole at high pressure with cement mill through the injection hole formed in the hollow bolt. As a hollow bolt and hollow screw anchor body, the drilling and insertion work of the ground can be carried out at the same time as one-line process work, which makes the construction work simple and easy, and shortens the construction period, improving economic efficiency. In addition, the ground is more robust and safe, there is an effect that can increase the quality and support strength after construction.

Claims (6)

  1. 삭제delete
  2. 전통토목 또는 건축토목에서 흔히 발생되는 절토 사면 및 터널 갱구부와 연약지반 내부에 뚫어 설치한 중공홀(3)의 내부에 그라우트재(시멘트밀크)를 가압 충전하는 터널보강 구조와, 이들의 보강공사를 더욱 견고하고 안전하게 시공설치 할 수 있도록 하기 위하여 전단부에 수개의 분출공(32)을 각 방향으로 뚫어 설치한 일회용 비트(30)를 결착하고, 전체 길이의 둘레부로 나사가 형성된 적정 길이의 각 중공형볼트(12)를 결합 연결시킨 중공나사식 앵커본체(10)의후단부에 부착판(50)을 결착너트(54)로서 결착된 통상의 자천공 중공나사식 앵커본체에 있어서,Tunnel reinforcement structure that pressurizes grout material (cement milk) inside the hollow slope (3) drilled into the cut slope and tunnel shaft part and the soft ground, which are commonly generated in traditional civil engineering or construction civil engineering, and their reinforcement work In order to be able to install more firmly and securely, the disposable bit 30 is formed by drilling several ejection holes 32 in each direction in the front end portion, and the appropriate length of each thread is formed in the circumference of the entire length. In the conventional self-perforated hollow screw anchor body in which the attachment plate 50 is attached as a binding nut 54 at the rear end of the hollow screw anchor body 10 to which the hollow bolt 12 is coupled.
    상기 중공나사식 앵커본체(10)를 형성하는 각 중공형볼트(12)를, 둘레부에 개방공(23)과 내부에 압출공(22)을 뚫어 형성한 일방향밸브(24)로 결합 연결시킨 체결구(20)의 구조와;The hollow bolts 12 forming the hollow screw anchor body 10 are coupled to each other by a one-way valve 24 formed by opening an opening 23 and an extrusion hole 22 therein. The structure of the fastener 20;
    상기 중공나사식 앵커본체(10)의 후방에는 선단부를 결착띠(42)로 결착 묶음시키고, 후단부를 공지의 팩충전호스(47)를 삽입 고정하는 끼움공(45)을 뚫은 압축링(44)을 개재하여 묶음띠(46)로서 묶음 고정시키므로써 형성되는 구조의 자루형포대(40)를 설치한 것을 특징으로 한 지반보강시공용 자천공 중공나사식 앵커본체.At the rear of the hollow screw anchor body 10, the front end portion is bound and bound with a binding band 42, and the rear end portion has a compression ring 44 having a hole 45 for inserting and fixing a well-known pack filling hose 47. Self-punched hollow screw anchor body for ground reinforcement construction, characterized in that the bag is provided by the bundle to fix the bundle as a bundle (46).
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KR1020050041547A 2005-05-18 2005-05-18 A ground reinforcement construction method using empty screw type anchor bolt having hole itself and the same KR100698840B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919821B1 (en) * 2007-08-01 2009-10-06 주식회사 공영비에프엘 Ground enhansing apparatus with anchor rod and method thereof
KR101018890B1 (en) * 2010-01-29 2011-03-04 주식회사 동창이엔씨 Grouting method utilizing anchor apparatus for direct-boring

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100868180B1 (en) * 2008-03-10 2008-11-12 (주)브니엘컨설턴트 Ground reinforcing device of small diameter steel pipe of spiral shape and ground reinforcing method using the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119021A (en) 1981-01-19 1982-07-24 Raito Kogyo Kk Anchor method
JPS63130599A (en) 1986-11-20 1988-06-02 Sekisui Chem Co Ltd Modified nucleotide
KR20000006985A (en) 1999-11-17 2000-02-07 이민현 Soil nailing by pressure grouting
KR200263955Y1 (en) 2001-11-16 2002-02-19 정성필 Nailing device that use spiral style pipe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57119021A (en) 1981-01-19 1982-07-24 Raito Kogyo Kk Anchor method
JPS63130599A (en) 1986-11-20 1988-06-02 Sekisui Chem Co Ltd Modified nucleotide
KR20000006985A (en) 1999-11-17 2000-02-07 이민현 Soil nailing by pressure grouting
KR200263955Y1 (en) 2001-11-16 2002-02-19 정성필 Nailing device that use spiral style pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100919821B1 (en) * 2007-08-01 2009-10-06 주식회사 공영비에프엘 Ground enhansing apparatus with anchor rod and method thereof
KR101018890B1 (en) * 2010-01-29 2011-03-04 주식회사 동창이엔씨 Grouting method utilizing anchor apparatus for direct-boring

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