KR200449724Y1 - Rock bolt for underground hole - Google Patents

Rock bolt for underground hole

Info

Publication number
KR200449724Y1
KR200449724Y1 KR2020100001172U KR20100001172U KR200449724Y1 KR 200449724 Y1 KR200449724 Y1 KR 200449724Y1 KR 2020100001172 U KR2020100001172 U KR 2020100001172U KR 20100001172 U KR20100001172 U KR 20100001172U KR 200449724 Y1 KR200449724 Y1 KR 200449724Y1
Authority
KR
South Korea
Prior art keywords
anchor body
bolt
expansion means
rock
expansion
Prior art date
Application number
KR2020100001172U
Other languages
Korean (ko)
Inventor
손원익
박이근
Original Assignee
(주)지오알앤디
손원익
박이근
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)지오알앤디, 손원익, 박이근 filed Critical (주)지오알앤디
Priority to KR2020100001172U priority Critical patent/KR200449724Y1/en
Application granted granted Critical
Publication of KR200449724Y1 publication Critical patent/KR200449724Y1/en

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0026—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection characterised by constructional features of the bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0093—Accessories
    • 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

Landscapes

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

Abstract

본 고안은 확경형 락볼트에 관한 것으로, 보다 상세하게는 락볼트의 선단부에 앵커체를 일체 장착하고, 앵커체에 구비된 확경수단에 의해 정착시켜 전단력과 긴장력을 동시에 발휘함으로써 암반의 강도를 월등히 높힐 수 있는 확경형 락볼트에 관한 것이다.
상기와 같은 본 고안은 내부에 수용안내부가 형성되고, 확경수단이 개재되는 진출공이 내.외측을 관통하여 상.하 교차되도록 다단형성된 앵커체와,
상기 앵커체의 수용안내부에 삽입되며, 상부에 개재되는 확경수단이 안착할 수 있도록 안착홈이 형성되고, 하부에 개재되는 확경수단을 밀어주는 원뿔면이 형성된 보조피스톤헤드를 포함하여 이루어진 확경형 락볼트를 구성한 것을 특징으로 한다.The present invention relates to a diameter-type rock bolt, and more specifically, the anchor body is integrally mounted to the front end of the rock bolt, and fixed by means of the diameter-expansion means provided in the anchor body to exert both shear and tension forces simultaneously, thereby significantly increasing the strength of the rock. It is about an expansion type rock bolt which can raise.
The present invention as described above is formed in the receiving guide therein, the anchor hole is formed in multiple stages so that the entrance hole through which the expansion means is intersected up and down through the inner and outer sides,
The expansion-type lock is inserted into the receiving guide portion of the anchor body, the seating groove is formed so that the expansion means interposed in the upper portion, and the expansion diameter lock including a secondary piston head formed with a conical surface for pushing the expansion means interposed thereunder It is characterized by comprising a bolt.

Description

확경형 락볼트{Rock bolt for underground hole}Rock bolt for underground hole {

본 고안은 확경형 락볼트에 관한 것으로, 보다 상세하게는 락볼트의 선단부에 앵커체를 일체 장착하고, 앵커체에 구비된 확경수단에 의해 정착시켜 전단력과 긴장력을 동시에 발휘함으로써 암반의 강도를 월등히 높힐 수 있고, 천공경 내에 주입되는 시멘트몰탈이 굳어지지 않은 상태에서도 긴장력을 도입할 수 있는 확경형 락볼트에 관한 것이다.The present invention relates to a diameter-type rock bolt, and more specifically, the anchor body is integrally mounted to the front end of the rock bolt, and fixed by means of the diameter-expansion means provided in the anchor body to exert both shear and tension forces simultaneously, thereby significantly increasing the strength of the rock. The present invention relates to an expansion-type rock bolt capable of raising and introducing a tension force even when the cement mortar injected into the hole diameter does not harden.

일반적으로 토목건축공사, 터널공사 등에 있어서는 산의 암반을 포함하는 지중에 구멍을 형성하게 된다. 이 구멍은 소정의 폭발물, 예를들면 다이너마이트와 같은 폭발물을 다수개 터뜨려서 암반을 깨면서 터널 기초구멍을 넓혀 나아가게 된다. 일정한 높이와 넓이로 기초터널을 뚫고 난 후, 이 기초터널의 붕괴를 방지하기 위해서는 기초터널의 안쪽에 면하여 무수히 많은 락볼트를 박고 메쉬 형상의 망사체를 설치하며 최종적으로 콘크리트를 타설하는 보강막 공사를 하게 된다. 이 보강막 공사는, 먼저 착암기나 파쇄기를 이용하여 암반에 락볼트가 삽입될 구멍을 뚫는다. 상기 구멍에 시멘트몰탈을 타설하고 락볼트를 삽입한다.Generally, in civil engineering construction, tunnel construction, etc., holes are formed in the ground including mountain rock. The hole opens a number of explosives, such as dynamite, to explode a tunnel foundation hole while breaking the rock. After drilling the foundation tunnel with a certain height and width, in order to prevent the collapse of the foundation tunnel, the inner side of the foundation tunnel is embedded with a myriad of lock bolts, a mesh-like mesh is installed, and finally a reinforcement film for placing concrete. The work is done. This reinforcing film construction first drills a hole into which rock bolts are to be inserted into the rock using a rock drill or a crusher. Cement mortar is poured into the hole and a rock bolt is inserted.

상기 락볼트 주위의 상기 몰탈이 굳으면 락볼트는 암반 속에 고정되는 것이다. 상기 락볼트를 소정 간격으로 다수개 설치함으로써 망사체에 분사되는 콘크리트 하중에 충분히 견디도록 한다. 이때 상기 락볼트를 암반에 깊숙하게 설치하여야 보강막이 견고하게 되므로 보강막 공사에 있어서 락볼트의 설치공법의 개선은 터널 공사 등에 있어서 공수단축, 인건비 절감 등에 큰 영향을 미치며, 현재도 다양한 락볼트 및 이를 이용한 공법으로 실시되고 있는 실정이다.
When the mortar around the rock bolt is hardened, the rock bolt is fixed in the rock. By installing a plurality of the lock bolt at predetermined intervals to sufficiently withstand the concrete load sprayed on the mesh body. At this time, since the reinforcing film is firmly installed when the rock bolt is installed deeply on the rock, the improvement of the installation method of the rock bolt in the reinforcing film construction greatly affects the construction means, labor cost reduction in tunnel construction, etc. The situation is being carried out by the method using this.

본출원인에의해선등록된등록특허공보제10-0820642호에의하면,지중에방사상으로침투하며앵커체를정착시키는돌출비트가내재된앵커체를네일의선단부에일체로결합하여이루어진앵커네일을구성하여지반내측에앵커체를돌출비트에의해안정적으로정착시킴과아울러전단력과긴장력을동시에발휘할수있는사면보강공사용앵커네일및이를이용한사면보강공법을게재하고있다.According to the registered patent publication No. 10-0820642, which is registered by the present applicant, an anchor nail formed by combining an anchor body embedded with a protrusion bit radially penetrating into the ground and fixing the anchor body is integrally formed at the tip of the nail. An anchor nail is used to secure shear and tension at the same time as well as to securely anchor the anchor body by the protruding bit on the inner side of the ground. 이와같은기술은앵커설치시네일에회전력을전달하여돌출비트를회전및돌출시켜관입하고자하는위치에서의부분확공과동시에돌출비트가지중에관입되도록하여토사뿐만아니라암반에서도그지압력에의한정착력이탁월하며,그라우트실시전에네일에긴장력을선도입하으로써,지반내부에긴장력이발휘되어일반적인네일링공법에비해보강효과가우수한기술인것이다.This technology transfers the rotational force to the nail when the anchor is installed, rotates and protrudes the protruding bits so that they can partially penetrate into the protruding bits at the same time as the intrusive bits, so that the anchoring force is excellent not only in the soil but also in the rock. By introducing tension into the nail prior to the grout, tension is released in the ground, which makes the reinforcing effect superior to the general nailing method. 그러나,상기기술을락볼트로적용하여사용할경우락볼트의특성상락볼트로사용되는강봉의강도,직경의선책이암반조건및사용목적에따라결정됨으로써락볼트용으로사용하기위해앵커체의직경을작게할경우돌출비트가앵커체내부에방사상배열되는구성이사실상어려운문제점이발생되었다.However, when the above technique is used as a lock bolt, the anchor bolt diameter is determined to be used for the lock bolt because the strength of the steel bar and the diameter of the steel rod used as the lock bolt are determined according to the rock condition and the purpose of use. In small cases, the configuration of the projecting bits radially arranged inside the anchor body is a real problem.

상술한 바와 같은 문제를 해결하기 위해 본 고안에서는 전단력과 긴장력을 동시에 발휘할 수 있는 확경형 락볼트를 구성하되, 앵커체로부터 돌출되는 확경수단을 상.하 교차하며 다단구조를 이루도록 결합하여 락볼트에 회전력을 전달시 앵커체에 다단 형성된 확경수단이 위.아래에서 서로 교차되게 진출하며 락볼트의 선단부를 암반 내측으로 긴밀히 정착시킴과 동시에 부분확경할 수 있도록 함으로써 앵커체의 직경에 제한없이 확경수단이 구비된 확경형 락볼트를 제공하는데 그 목적이 있다.
In order to solve the problems described above, the present invention constitutes an expansion-type rock bolt that can exert both shear and tension forces, and combines the expansion-and-expansion means protruding from the anchor body to form a multi-stage structure by crossing up and down the rock bolt. When the rotational force is transmitted, the expansion means formed in the anchor body crosses each other from above and below, and the expansion means of the rock bolt is fixed to the inner side of the rock tightly and partially enlarged. It is an object of the present invention to provide an enlarged rock bolt provided.

상술한 목적을 달성하기 위한 본 고안의 특징에 의하면, According to a feature of the present invention for achieving the above object,

본 고안은 확경수단이 포함된 앵커체를 락볼트의 선단부에 구성하여 락볼트를 회전시킴과 동시에 락볼트 단부에 구성된 피스톤헤드에 의해 확경수단이 암반으로 긴밀하게 진출되며 락볼트의 선단부를 정착시키는 락볼트에 있어서, 상기 앵커체(10)는 내부에 수용안내부(11)가 형성되고, 확경수단(20)이 개재되는 진출공(12)이 내.외측을 관통하여 상.하 교차되도록 다단형성되며, 상기 앵커체(10)의 수용안내부(11)에 삽입되며, 상부에 개재되는 확경수단(20a)이 안착할 수 있도록 안착홈(31)이 형성되고, 하부에 개재되는 확경수단(20b)을 밀어주는 원뿔면(32)이 형성된 보조피스톤헤드(30)를 포함하여 구성된 것을 특징으로 한다.The present invention comprises an anchor body including a diameter expansion means at the tip of the rock bolt to rotate the rock bolt and at the same time the diameter expansion means is in close contact with the rock by the piston head configured at the end of the rock bolt to secure the tip of the rock bolt In the lock bolt, the anchor body 10 has a receiving guide portion 11 is formed therein, so that the exit hole 12 through which the expansion means 20 is intersected up and down through the inner and outer sides of the multi-stage. Is formed, is inserted into the receiving guide portion 11 of the anchor body 10, the mounting groove 31 is formed so that the expansion means (20a) that is interposed on the upper portion is formed, the expansion means which is interposed below ( It characterized in that it comprises a secondary piston head 30 formed with a conical surface 32 for pushing 20b).

본 고안의 확경형 락볼트에 의하면, 락볼트의 전단력과 긴장력이 동시에 발휘되므로써, 암반의 강도 및 일체화를 극대화하여 암반붕괴 및 낙석을 효과적으로 방지할 수 있으며, 락볼트의 설치 간격을 확대하여 천공, 그라우팅 등 전체 수량 고려 시 큰 폭의 공사비 절감 및 시공기간을 단축하여 경제적 효과가 우수한 것이다.According to the expansion-type rock bolt of the present invention, the shear bolt and the tension of the rock bolt are simultaneously exerted, thereby maximizing the strength and integration of the rock, effectively preventing rock collapse and falling rocks, and expanding the installation interval of the rock bolt to perforate, Considering the total quantity such as grouting, it is possible to save a lot of construction cost and shorten the construction period.

도 1은 본 고안의 실시예를 보인 분리사시도
도 2는 본 고안의 실시예에 따른 조립상태를 보인 사시도.
도 3 내지 도 4는 본 고안에 실시예에 따른 동작상태를 보인 단면도.
도 5는 본 고안의 다른 실시예를 보인 단면도.
도 6 본 고안의 또 다른 실시예를 보인 사시도.
도 7은 본 고안의 또 다른 실시예에 따른 시공상태를 보인 단면도.1 is an exploded perspective view showing an embodiment of the present invention
2 is a perspective view showing an assembled state according to an embodiment of the present invention.
3 to 4 is a cross-sectional view showing an operating state according to an embodiment of the present invention.
5 is a cross-sectional view showing another embodiment of the present invention.
Figure 6 is a perspective view showing another embodiment of the present invention.
7 is a cross-sectional view showing a construction state according to another embodiment of the present invention.

이하, 본 고안의 실시예를 첨부된 도면 도 1 내지 도 7에 의거하여 상세히 설명한다. 한편, 도면과 상세한 설명에서 일반적인 락볼트로부터 이 분야의 종사자들이 용이하게 알 수 있는 구성 및 작용에 대한 도시 및 언급은 간략히 하거나 생략하였다. 특히 도면의 도시 및 상세한 설명에 있어서 본 고안의 기술적 특징과 직접적으로 연관되지 않는 요소의 구체적인 기술적 구성 및 작용에 대한 상세한 설명 및 도시는 생략하고, 본 고안과 관련되는 기술적 구성만을 간략하게 도시하거나 설명하였다.Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 7. On the other hand, in the drawings and detailed description showing and referring to the configuration and operation easily understood by those of ordinary skill in the art from those skilled in the art, the description is briefly or omitted. In particular, in the drawings and detailed description of the drawings, detailed descriptions and illustrations of specific technical configurations and operations of elements that are not directly related to technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown or described. It was.

본 고안은 본 출원인에 의해 선등록된 등록특허공보 제10-0820642호("사면보강공사용 앵커네일 및 이를 이용한 사면보강공법")에 대해 적극 개선한 것으로서, The present invention is a significant improvement on the registered patent publication No. 10-0820642 ("Slope reinforcement anchor nail and slope reinforcement method using the same") registered by the present applicant,

앵커체(10)의 직경에 제한없이 확경수단(20)을 앵커체(10) 내부에 상.하 교차되도록 다단형성하여 락볼트(50)의 선단부에 장착하여 시공시 락볼트(50)로 하여금 전단력과 긴장력을 동시에 발휘할 수 있도록 하여 암반의 강도 및 일체화를 높힐 수 있는 확경형 락볼트(100)를 구성한데 특징이 있다.Regardless of the diameter of the anchor body 10, the expansion means 20 is formed in multiple stages so as to intersect the inside of the anchor body 10 up and down, and is mounted to the front end of the lock bolt 50 to allow the lock bolt 50 during construction. It is characterized by the configuration of the expansion-type rock bolt 100 that can increase the strength and integration of the rock by exerting both shear and tension forces at the same time.

도 1은 본 고안의 실시예를 보인 분리사시도이고, 도 2는 본 고안의 실시예에 따른 조립상태를 보인 사시도이며, 도 3 내지 도 4는 본 고안에 실시예에 따른 동작상태를 보인 단면도이고, 도 5는 본 고안의 다른 실시예를 보인 단면도이며, 도 6 본 고안의 또 다른 실시예를 보인 사시도이고, 도 7은 본 고안의 또 다른 실시예에 따른 시공상태를 보인 단면도를 나타낸 것이다.1 is an exploded perspective view showing an embodiment of the present invention, Figure 2 is a perspective view showing an assembled state according to an embodiment of the present invention, Figures 3 to 4 is a cross-sectional view showing an operating state according to an embodiment of the present invention. 5 is a cross-sectional view showing another embodiment of the present invention, FIG. 6 is a perspective view showing another embodiment of the present invention, and FIG. 7 is a sectional view showing a construction state according to another embodiment of the present invention.

본 고안에 따른 확경형 락볼트(100)는 확경수단(20)이 포함된 앵커체(10)를 락볼트(50)의 선단부에 구성하여 락볼트(50)를 회전시킴과 동시에 락볼트(50)에 결합된 피스톤헤드(40)에 의해 확경수단(20)이 암반으로 긴밀하게 진출되며 락볼트(50)의 선단부를 정착시키는 선단부 확장형 락볼트에 있어서, The expansion-type rock bolt 100 according to the present invention is configured by the anchor body 10 including the diameter-expansion means 20 at the tip of the lock bolt 50 to rotate the lock bolt 50 and at the same time the lock bolt 50 In the tip expansion type rock bolt that expands the diameter means 20 is tightly advanced to the rock by the piston head 40 coupled to the) to fix the tip of the rock bolt 50,

상기 앵커체(10)는 내부에 수용안내부(11)가 형성되고, 확경수단(20)이 개재되는 진출공(12)이 내.외측을 관통하여 상.하 교차되도록 다단형성되며, The anchor body 10 is formed in the receiving guide portion 11 therein, the exit hole 12 through which the expansion means 20 is formed in multiple stages so as to cross up and down through the inner and outer,

상기 앵커체(10)의 수용안내부(11)에 삽입되며, 상부에 개재되는 확경수단(20a)이 안착할 수 있도록 안착홈(31)이 형성되고, 하부에 개재되는 확경수단(20b)을 밀어주는 원뿔면(32)이 형성된 보조피스톤헤드(30)를 포함하여 구성된다.Inserted into the receiving guide portion 11 of the anchor body 10, a seating groove 31 is formed so that the expansion means (20a) that is interposed on the upper portion is formed, the expansion means (20b) interposed thereunder It comprises a secondary piston head 30 formed with a pushing conical surface 32.

이와 같은 확경형 락볼트(100)는 앵커체(10)에 형성된 진출공(12)으로 확경수단(20)을 밀어넣어 앵커체(10)로 결합하되, 양방향에서 삽입되는 확경수단(20)의 일단부가 서로 마주보면서 원뿔면(21)의 끝단끼리 서로 접촉되기까지 밀어서 앵커체(10) 내부에 삽입시켜 조립하게 된다. 이때 도 2에 보인바와 같이, 상.하 교차되도록 다단구조가 되게 결합되는 상.하부 확경수단(20a,20b)의 사이에는 보조피스톤헤드(30)를 개재하게 된다. 상기 보조피스톤헤드(30)는 앵커체(10)의 수용안내부(11)로 삽입되며, 상.하부 확경수단(20a,20b) 사이에 개재시 원뿔면(32)은 하부측에 위치되는 확경수단(20b)의 원뿔면(21)과 접촉되도록 하고, 상부측 확경수단(20a)이 안착되어 지지할 수 있도록 안착홈(31)의 좌.우 개방되어진 방향이 진출공(12)이 뚫린 방향으로 일치시켜 조립하게 된다. 그리고 락볼트(50)에 일체로 연장 결합된 피스톤헤드(40)를 수용안내부(11)의 입구부에 형성된 나사산에 나사조립함으로써 조립은 간단하게 완료된다. 여기서 락볼트(50)에 일체로 연장 결합된 피스톤헤드(40)의 바깥둘레면에도 나사산이 형성되는 것이 바람직하다.Such a diameter-type rock bolt 100 is pushed into the diameter expansion means 20 into the exit hole 12 formed in the anchor body 10 is coupled to the anchor body 10, of the diameter expansion means 20 is inserted in both directions One end is facing each other and the ends of the conical surface 21 is pushed to contact each other to be inserted into the anchor body 10 to be assembled. At this time, as shown in FIG. 2, the auxiliary piston head 30 is interposed between the upper and lower expansion means (20a, 20b) coupled to form a multi-stage structure so as to cross the upper and lower. The auxiliary piston head 30 is inserted into the receiving guide portion 11 of the anchor body 10, when the conical surface 32 when interposed between the upper and lower diameter expansion means (20a, 20b) is located on the lower side The left and right openings of the seating groove 31 coincide in the direction in which the exit hole 12 is drilled so as to be in contact with the conical surface 21 of the 20b and to allow the upper side expanding means 20a to be seated and supported. To assemble. Then, the assembly is simply completed by screwing the piston head 40 integrally extended to the lock bolt 50 to the thread formed at the inlet of the accommodation guide 11. Here, the thread is also formed on the outer circumferential surface of the piston head 40 which is integrally coupled to the lock bolt 50.

상기 보조피스톤헤드(30)는 앵커체(10)에 상.하 다단 구조로 내재되는 확경수단(20)의 사이에서 상부측 확경수단(20a)이 진출공(12)에 의해 앵커체(10) 내부에 삽입되면서 진출공(12)을 완전 벗어나 앵커체(10)의 수용안내부(11)로 이탈되는 것을 방지할 수 있도록 안착홈(31)을 형성하여 지지대로서의 역할과 함께 락볼트(50)의 선단에 일체로 연장 결합된 피스톤헤드가 하강함과 동시에 보조피스톤헤드 또한 강제 하강함으로써 상.하 확경수단이 순차간격 없이 동시에 진출할 수 있도록 구성한 것이다.The auxiliary piston head 30 is the anchor body 10 by the expansion hole 12, the upper side diameter expansion means 20a between the expansion means 20 which is embedded in the upper and lower multi-stage structure in the anchor body 10 Lock bolt 50 with a role as a support by forming a seating groove 31 to be prevented from being separated into the receiving guide portion 11 of the anchor body 10 is completely inserted into the exit hole 12 while being inserted therein Piston head integrally extended to the tip of the descending and at the same time the auxiliary piston head is also forcibly lowered, so that the upper and lower diameter means can advance simultaneously without sequential intervals.

한편, 확경수단이 압입되는 암반의 상태가 매우 강하여 순차간격을 두고 외측으로 진출 압입하게 하는 것이 시공성에서 유리할 경우에는 보조피스톤헤드를 제외하여 구성하는 것이 시공성을 더 높일 수 있으므로 현장조건에 따라 그 구성을 제외하여도 그 기능은 동일하게 작용하게 된다.On the other hand, when it is advantageous in constructability that the size of the rock to which the expansion means is press-fitted is to be pushed outwards at intervals with sequential intervals, it is possible to further increase the constructability by excluding the auxiliary piston head, so that the construction according to the site conditions Except for that function will work the same.

도 3 내지 도 4는 본 고안의 실시예에 따른 동작상태를 나타낸 것으로, 확경부재(20)가 내재된 앵커체(10)가 선단부에 조립된 확경형 락볼트(100)를 천공홀(200) 내에 삽입한 후, 회전장치(미도시)에 의해 락볼트(50)에 회전력을 가하게 되면, 락볼트의 선단부에 연장 형성된 피스톤헤드(40)가 수용안내부(11)의 나사산을 따라 하강진출하게 되고, 3 to 4 show the operation state according to the embodiment of the present invention, the hole diameter 200 of the expansion-type rock bolt 100 is assembled to the distal end of the anchor body 10 is embedded in the diameter-expansion member 20 After inserting into the lock bolt, and applying a rotational force to the lock bolt 50 by a rotating device (not shown), the piston head 40 extending to the leading end of the lock bolt descends along the thread of the receiving guide portion 11 Will be

피스톤헤드(40)의 하강과 동시에 보조피스톤헤드(30) 또한 강제 하강하게 된다. 이때 다단 구조된 확경수단(20)이 진출공(12)을 따라 추진하되, 상부측 확경수단(20a)은 피스톤헤드(40)에 영향으로 동작하게 되고, 하부측 확경수단(20b)은 보조피스톤헤드(30)의 영향으로 동작하며 천공홀(200) 내벽을 향해 긴밀히 침투하며 앵커체(10)를 정착시킬 수 있게 된다.At the same time as the piston head 40 is lowered, the auxiliary piston head 30 is also forcedly lowered. At this time, the multi-stage enlarged diameter means 20 is pushed along the exit hole 12, the upper side diameter expansion means 20a is operated under the influence of the piston head 40, the lower side diameter expansion means 20b is the auxiliary piston It operates under the influence of the head 30 and penetrates tightly toward the inner wall of the drilling hole 200 to fix the anchor body 10.

그리고, 천공홀의 입구부에서 지압판 및 너트를 락볼트에 체결하여 너트를 조여줌으로써 긴장력을 도입하게 되며, 천공홀 내부에 시멘트몰탈을 밀실하게 채움으로써 시공완료하게 되는 것이다.Then, by tightening the nut by fastening the pressure plate and the nut to the lock bolt at the inlet of the drilling hole, the tension is introduced, and the construction is completed by filling the cement mortar tightly inside the drilling hole.

한편, 도 5는 본 고안의 다른 실시예를 보인 것으로, 앵커체(10)에 확경수단(20)을 구성함에 있어서, 앵커체(10)에 확경수단(20)의 개수를 늘리고, 이에 따른 보조피스톤헤드(30)를 다단 구조가 되도록 구성한 것이다. 이에 락볼트(50) 시공시 암반과 앵커체(10)간의 마찰력을 증대하여 전단저항력을 높힐 수 있게 된다.On the other hand, Figure 5 shows another embodiment of the present invention, in configuring the diameter expansion means 20 in the anchor body 10, increasing the number of diameter expansion means 20 in the anchor body 10, accordingly The piston head 30 is configured to have a multistage structure. Accordingly, when the rock bolt 50 is constructed, the frictional force between the rock and the anchor body 10 may be increased to increase the shear resistance.

도 6 내지 도 7은 본 고안의 또 다른 실시예를 보인 것으로, 확경형 락볼트(100)를 구성함에 있어서, 터널과 같이 천단에 상향으로 확경형 락볼트를 설치 시공할 경우, 락볼트의 일시고정 및 밀실 채움되는 시멘트몰탈의 누수방지할 수 있도록 하여 그 시공이 용이하도록 하기 위한 것으로,6 to 7 show another embodiment of the present invention, in the configuration of the expansion-type rock bolt 100, when installing the expansion-type rock bolt upward in the ceiling, such as a tunnel, the temporary lock bolt In order to prevent the leakage of the cement mortar is fixed and closed filling to facilitate the construction,

앵커체(10)의 단부에 탈부착이 용이하도록 탄성회복력이 강한 판상에 수개의 탄성부(61)가 돌출되고, 지중에 고정을 위한 스파이크(62)가 일체 형성된 락볼트고정부재(60)와,  A lock bolt fixing member 60 in which several elastic portions 61 protrude on a plate having a strong elastic recovery force to easily attach and detach to an end portion of the anchor body 10, and in which spikes 62 for fixing in the ground are integrally formed;

천공홀(200)의 입구와 락볼트(50) 사이에 개재되어 천공홀(200)의 입구를 밀폐시킬 수 있도록 하는 연성의 막음부재(71)가 구비되고, 락볼트(50)의 회전시 막음부재(71)의 간섭을 방지하기 위해 락볼트(50)와 막음부재(71) 사이에 개재되는 나사부가 형성된 회전면체(72)로 이루어진 몰탈누수방지수단(70)을 구성한 것이다. A flexible blocking member 71 is provided between the inlet of the drilling hole 200 and the lock bolt 50 to seal the inlet of the drilling hole 200, and is prevented when the lock bolt 50 is rotated. In order to prevent the interference of the member 71, the mortar leakage preventing means 70 made of a rotating facet 72 having a threaded portion interposed between the lock bolt 50 and the blocking member 71 is configured.

상기와 같은 락볼트고정부재(60)는 터널과 같이 천단부에 상향으로 확경형 락볼트(100)를 설치시공 할 경우, 확경형락볼트(100)를 구성하는 앵커체(10)의 단부에 락볼트고정부재(60)를 간단하게 탈착함으로써, 천공홀(200)에 락볼트(50)를 삽입시 스파이크(62)가 지중에 삽입되면서 앵커체(10)를 일시고정시킬 수 있어 상향시공에 따른 천공홀(200)로부터 확경형락볼트(100)가 이탈되는 것을 용이하게 방지할 수 있게 된다. The lock bolt fixing member 60 as described above is installed at the end of the anchor body 10 constituting the expandable rock bolt 100 when installing the expansion-type rock bolt 100 upwardly in the top end, such as a tunnel By simply detaching the lock bolt fixing member 60, when the lock bolt 50 is inserted into the drilling hole 200, the spike 62 is inserted into the ground and the anchor body 10 can be temporarily fixed. It is possible to easily prevent the expansion-type rock bolt 100 is separated from the drilling hole 200 according to the.

또 상기 몰탈누수방지수단(70)은 천공홀(200)의 입구부를 연성의 막음부재(71)로 밀폐시키되, 확경수단(20)의 돌출을 위해 락볼트(50)를 회전시 막음부재(71)로 하여금 락볼트(50)에 간섭되지 않게 함과 동시에, 회전에 따른 막음부재(71)의 훼손을 방지하기 위해 회전면체(72)를 락볼트(50)와 막음부재(71) 사이에 구성하게 되며, 막음부재(71)와 회전면체(72)는 회전이 더욱 유리하도록 나사산이 형성되는 것이 바람직하다.In addition, the mortar leakage preventing means 70 seals the inlet of the drilling hole 200 with the flexible blocking member 71, the blocking member 71 when the lock bolt 50 is rotated to protrude the expansion means 20. Rotating body 72 is configured between the lock bolt 50 and the blocking member 71 in order not to interfere with the lock bolt 50 and to prevent damage of the blocking member 71 due to rotation. The blocking member 71 and the rotating face 72 are preferably formed with a screw thread so that rotation is more advantageous.

상술한 바와 같은, 본 발명의 실시예에 따른 확경형 락볼트를 상기한 설명 및 도면에 따라 도시하였지만, 이는 예를 들어 설명한 것에 불과하며 본 고안의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 변화 및 변경이 가능하다는 것을 이 분야의 통상적인 기술자들은 잘 이해할 수 있을 것이다.
As described above, the expansion-type rock bolt according to the embodiment of the present invention is shown in accordance with the above description and drawings, but this is only described for example and various changes and modifications within the scope without departing from the technical spirit of the present invention It will be appreciated by those skilled in the art that this is possible.

200 : 천공홀 100 : 확경형 락볼트
10 : 앵커체 11 : 수용안내부 12 : 진출공
20 : 확경수단 21 : 원뿔면
30 : 보조피스톤헤드 31 : 안착홈 32 : 원뿔면
40 : 피스톤헤드 50 : 락볼트
60 : 락볼트고정부재 61 : 탄성부 62 : 스파이크
70 : 몰탈누수방지수단 71 : 막음부재 72 : 회전면체200: drilling hole 100: expansion lock bolt
10: anchor body 11: accommodation guide 12: entry hole
20: diameter expansion means 21: conical surface
30: auxiliary piston head 31: seating groove 32: conical surface
40: piston head 50: rock bolt
60: lock bolt fixing member 61: elastic portion 62: spike
70: mortar leakage preventing means 71: blocking member 72: rotating face

Claims (2)

삭제delete 확경수단이 포함된 앵커체를 락볼트의 선단부에 구성하여 락볼트를 회전시킴과 동시에 락볼트에 결합된 피스톤헤드에 의해 확경수단이 암반으로 긴밀하게 진출되며 락볼트의 선단부를 정착시키는 락볼트에 있어서,
상기 앵커체(10)는 내부에 수용안내부(11)가 형성되고, 확경수단(20)이 개재되는 진출공(12)이 내.외측을 관통하여 상.하 교차되도록 다단형성되어 구비되고,
상기 앵커체(10)의 수용안내부(11)에 삽입되며, 상부에 개재되는 확경수단(20a)을 지지할 수 있도록 안착홈(31)이 형성되며, 하부에 개재되는 확경수단(20b)을 밀어주는 원뿔면(32)으로 이루어진 보조피스톤헤드(30)를 포함하여 구성되고,
상기 앵커체(10)의 단부에 탈착이 용이하도록 탄성회복력이 강한 판상에 수개의 탄성부(61)가 돌출되고, 지중에 고정을 위한 스파이크(62)가 일체 형성된 락볼트고정부재(60)와,
천공홀(200)의 입구와 락볼트(50) 사이에 개재되어 천공홀(200)의 입구를 밀폐시킬 수 있도록 하는 연성의 막음부재(71)가 구비되고, 락볼트(50)의 회전시 막음부재(71)의 간섭을 방지하기 위해 락볼트(50)와 막음부재(71) 사이에 개재되는 나사부가 형성된 회전면체(72)로 이루어진 몰탈누수방지수단(70)을 구성한 것을 특징으로 하는 확경형 락볼트.An anchor body including expansion means is formed at the tip of the lock bolt to rotate the lock bolt and at the same time, the piston head coupled to the lock bolt moves the expansion means closely to the rock and fixes the tip of the rock bolt. In
The anchor body 10 is provided with an accommodating guide portion 11 therein, the exit hole 12 having the expansion means 20 is provided in multiple stages so as to cross up and down through the inner and outer sides,
Inserted into the receiving guide portion 11 of the anchor body 10, a seating groove 31 is formed to support the expansion means (20a) interposed thereon, the expansion means (20b) interposed therebetween It comprises a secondary piston head 30 consisting of a pushing conical surface 32,
Rock bolt fixing member 60 and a plurality of elastic portion 61 protrudes on the plate with a strong elastic recovery force to the end of the anchor body 10 to be easily detached, integrally formed with a spike 62 for fixing in the ground; ,
A flexible blocking member 71 is provided between the inlet of the drilling hole 200 and the lock bolt 50 to seal the inlet of the drilling hole 200, and is prevented when the lock bolt 50 is rotated. In order to prevent the interference of the member 71, a diameter-expansion type comprising a mortar leakage preventing means 70 made of a rotating facet 72 formed with a threaded portion interposed between the lock bolt 50 and the blocking member 71 Rock bolt.
KR2020100001172U 2010-02-02 2010-02-02 Rock bolt for underground hole KR200449724Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020100001172U KR200449724Y1 (en) 2010-02-02 2010-02-02 Rock bolt for underground hole

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2020100001172U KR200449724Y1 (en) 2010-02-02 2010-02-02 Rock bolt for underground hole

Publications (1)

Publication Number Publication Date
KR200449724Y1 true KR200449724Y1 (en) 2010-08-04

Family

ID=44243042

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2020100001172U KR200449724Y1 (en) 2010-02-02 2010-02-02 Rock bolt for underground hole

Country Status (1)

Country Link
KR (1) KR200449724Y1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101199514B1 (en) * 2010-09-24 2012-11-09 (주)지오알앤디 Apparatus for preventing tunnel-caving in
KR101232301B1 (en) 2010-11-18 2013-02-13 박이근 Micro pile having some reinforcing rods
KR101242205B1 (en) 2011-06-14 2013-03-11 박이근 Apparatus for preventing tunnel-caving in and method of tunnel construction thereby
KR101442074B1 (en) 2013-12-03 2014-09-19 (주)삼일이엔씨 Piles with an Extended Head and Construction Method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114207U (en) * 1989-03-01 1990-09-12
KR100704774B1 (en) * 2007-01-08 2007-04-09 박이근 Soil nail anchor
KR100820642B1 (en) * 2007-09-15 2008-04-08 박이근 Anchor-nail device for slope-reinforcement-construction and slope stabilization method
KR100880690B1 (en) * 2008-05-22 2009-01-28 박이근 The anchor method which uses the ground anchor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02114207U (en) * 1989-03-01 1990-09-12
KR100704774B1 (en) * 2007-01-08 2007-04-09 박이근 Soil nail anchor
KR100820642B1 (en) * 2007-09-15 2008-04-08 박이근 Anchor-nail device for slope-reinforcement-construction and slope stabilization method
KR100880690B1 (en) * 2008-05-22 2009-01-28 박이근 The anchor method which uses the ground anchor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101199514B1 (en) * 2010-09-24 2012-11-09 (주)지오알앤디 Apparatus for preventing tunnel-caving in
KR101232301B1 (en) 2010-11-18 2013-02-13 박이근 Micro pile having some reinforcing rods
KR101242205B1 (en) 2011-06-14 2013-03-11 박이근 Apparatus for preventing tunnel-caving in and method of tunnel construction thereby
KR101442074B1 (en) 2013-12-03 2014-09-19 (주)삼일이엔씨 Piles with an Extended Head and Construction Method thereof
KR101453997B1 (en) 2013-12-03 2014-10-28 (주)삼일이엔씨 The Extending System for Piles with an Extended Head

Similar Documents

Publication Publication Date Title
KR100820642B1 (en) Anchor-nail device for slope-reinforcement-construction and slope stabilization method
KR100919821B1 (en) Ground enhansing apparatus with anchor rod and method thereof
US6457909B1 (en) Multi-purpose anchor bolt assembly
KR200449724Y1 (en) Rock bolt for underground hole
KR100953865B1 (en) Removable rock bolt being easy to separate nail
KR102214141B1 (en) Hollow rockbolt
KR100966148B1 (en) Ground adhering soil nailing structure and ground reinforcement method using the same
KR100909877B1 (en) Fixing nail anchor assembly conformed in single piece
KR101023477B1 (en) Pressed grouting soil nailing body
KR101633505B1 (en) The support material
KR101175112B1 (en) Multipurpose nailing anchor and construction method thereof
KR101241351B1 (en) The nail with high anchorage and the nailing construction method thereof
KR100773920B1 (en) Pre-tention soil nailing system and method for reinforcing inclined earth using the same
KR101202845B1 (en) Hybrid ground reinforcing method by earth anchor and soil nail
CN109083669A (en) Roadway floor prestressed grouting birdcage anchor cable construction method
KR100524316B1 (en) rock bolt
KR20010086663A (en) A method and apparatus for reinforcing slope stability using connecting wire
KR102037313B1 (en) Chiropractic four-way diffusion anchor assembly
KR101771423B1 (en) Anchor body for slope reinforcement
KR101132809B1 (en) Anchor body and construction method
KR100552461B1 (en) Structure for protecting and reinforcing slopes using lock volt
KR200381583Y1 (en) Soil Nailing Method for fixation anchor
KR100935235B1 (en) Apparatus for slope reinforcement
KR200345955Y1 (en) Structure for protecting and reinforcing slopes using lock volt
KR20080112454A (en) Reinforcement assembly for preventing ground collapse, its construction method and assembly to be used therefor

Legal Events

Date Code Title Description
A201 Request for examination
A302 Request for accelerated examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 20130612

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140428

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160726

Year of fee payment: 7

FPAY Annual fee payment

Payment date: 20171205

Year of fee payment: 8

FPAY Annual fee payment

Payment date: 20180814

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20190821

Year of fee payment: 10