CN2579953Y - Instantaneous self locking prestress anchor rod for medium and long explosive extension - Google Patents
Instantaneous self locking prestress anchor rod for medium and long explosive extension Download PDFInfo
- Publication number
- CN2579953Y CN2579953Y CN 02229312 CN02229312U CN2579953Y CN 2579953 Y CN2579953 Y CN 2579953Y CN 02229312 CN02229312 CN 02229312 CN 02229312 U CN02229312 U CN 02229312U CN 2579953 Y CN2579953 Y CN 2579953Y
- Authority
- CN
- China
- Prior art keywords
- anchor rod
- rod body
- anchor
- anchoring
- nutation
- Prior art date
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- Expired - Fee Related
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- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to an instantaneous self locking prestress anchor rod for medium and long explosive extension, which relates to an anchor rod used for bedrock anchoring items or hydraulic engineering side slope supporting and protecting items. The utility model is composed of a rod body of the anchor rod, an annular explosive component roll, a nutation and a top locking head, wherein, the top end of the rod body of the anchor rod is connected with the nutation by a welding mode, and the annular explosive component roll is positioned in a pile casing of the annular explosive component roll in a pile casing of the nutation and is coated outside the rod body of the anchor rod. The rod body of the anchor rod is inserted into an opposite penetrating jack of the rod body of the anchor rod, and the top locking head is longitudinally provided with six conic grooves in equal parts; conic tips are extended into six parallel grooves in equal parts of the nutation. When in use, the explosive component roll is exploded and the nutation moves down and is inserted into the conic groove of the top locking head under the action of the impact force of the explosive component roll, and simultaneously, the parallel groove of the nutation is expanded outwards along the conic groove and is locked with the hole wall of an anchoring hole; in this way, the anchor rod can be firmly locked in the anchoring hole. The utility model has the advantages of simple structure, reliable self locking performance, rapid locking and anchoring and convenient construction, and the utility model can transfer anchoring force to the bottom of the anchoring hole for realizing the end anchoring for medium and long anchor rods; the utility model can be used as a rapid prestress anchor rod.
Description
Technical field
The utility model relates to a kind of anchor pole that is used for basement rock anchoring or hydraulic engineering slope retaining project; Relate in particular to the instantaneous self-locking prestressed anchor of a kind of middle long explosive expansion.
Background technology
In the work progress of all kinds of hydraulic engineering projects, usually to use length and be the middle long anchor pole about 10 meters, be used for some more weak basement rock or instable slope are carried out supporting.The water conservancy project anchor pole that is usually used in this purpose at present mainly contains following several form:
1, the mortar anchor pole utilizes the ordinary Portland cement mortar that anchor pole and hole wall are connected as a single entity, and makes anchor pole produce anchored force and shearing resistance longitudinally.The size of vertical anchored force depends primarily on the size as the adhesion of the cement mortar of binding material, and shear strength is determined by the shear strength of anchor pole material.It deposit time of setting long, cement injection mortar construction technology complicated and vertical anchored force can not be delivered to the hole at the bottom of etc. shortcoming, make the application of this type of anchor pole be subjected to great restriction, and can not be used as quick prestressed anchor at all.
2, this type of anchor pole of powder stick anchor pole is divided into organic powder stick anchor pole and inorganic powder stick anchor pole, is about to organic gel or inorganic glue and makes roll, is called powder stick.During use powder stick and reinforced anchor bolt being inserted simultaneously utilizes the cementation of powder stick that anchor pole is fixed in the anchor hole.The construction technique complexity of this anchor pole, the same with the mortar anchor pole, can not be used as quick prestressed anchor.
3, the metal expansion type rock bolt is pressed into the longitudinal opening cylindrical shell with steel sheet, and the internal diameter of cylindrical shell is slightly less than the external diameter of anchor pole, and the external diameter of cylindrical shell is slightly less than the diameter of anchor hole inwall.Utilize the expansion of cylindrical shell that anchor pole is fixed during anchoring.The anchored force of this anchor pole depends on the size of frictional force between cylindrical shell and anchor pole outer wall and the anchor hole inwall.Because cylindrical shell is that outer power is squeezed in the hole by force, its length is restricted, so can not be used as quick prestressed anchor.
Summary of the invention
The purpose of this utility model just be to overcome time of setting of existing mortar anchor pole long, construction technology is complicated and vertical anchored force can not be delivered to the hole at the bottom of, can not be as deficiencies such as quick prestressed anchors, aim to provide a kind of easy to use, can fast self-locking, vertical anchored force can be delivered to the instantaneous self-locking prestressed anchor of middle long explosive expansion at the bottom of the hole.
The implementation of the purpose of this utility model is that the instantaneous self-locking prestressed anchor of middle long explosive expansion includes: anchor rod body 4, ring-shaped explosive powder stick 3, hang one's head 2 and top tapered end 1.The anchor rod body top with hang one's head between be connected with welding manner.The ring-shaped explosive powder stick places in the interior annular powder stick casing 5 of the casing of hanging one's head, and wraps in outside the anchor rod body.Anchor rod body inserts anchor rod body in the inserting hole 6.The top tapered end vertically has six equal portions cone tanks, and the awl point stretches in the six equal portions parallel slots 7 of hanging one's head.
The utility model anchor rod body is general building iron, and its top is connected with welding manner between 2 with hanging one's head.The internal diameter of ring-shaped explosive powder stick 3 is less than the external diameter of the body of rod, and the external diameter of powder stick is less than the internal diameter of the casing of hanging one's head, and the powder stick impact direction is towards top tapered end 1.2 one ends of hanging one's head are provided with annular powder stick casing 5; Anchor rod body jack 6 is used for anchor rod body and inserts the location of weldering when connecting, and inserts the two ends welding of back in the hole.Tapered end 1 profile in top is a cylinder, and it vertically has six equal portions cone tanks, and the awl point stretches in the six equal portions parallel slots 7 of hanging one's head.
The ring-shaped explosive powder stick that the utility model adopted is to develop for this type of anchor pole specially, and its longitudinal impact force can pour tup in the tapered end on its top, can not damage annular powder stick casing 5 inwalls again, the crag around more can not damaging.
The utility model course of work is as follows: anchor rod body 4 is inserted in the anchor rod body jack 6 of hanging one's head on 2, and at two ends in hole the anchor rod body and the weldering of hanging one's head are one; Tapered end 1 awl point in top is stretched in the six equal portions parallel slots 7 of hanging one's head; Ring-shaped explosive powder stick 3 is put into powder stick casing 5 (see figure 1)s of hanging one's head.To be equipped with then hang one's head, bottom that the anchor rod body of top tapered end and powder stick inserts anchor hole.Prepare just continuous back and ignite the ring-shaped explosive powder stick, under the effect of powder stick impact force, hanging one's head moves down in the cone tank that embeds the top tapered end, and the parallel slot of hanging one's head simultaneously expands outwardly and locks with the anchor hole hole wall along cone tank, and the utility model has promptly been suffered (see figure 4) by the firm anchor hole that is locked in like this.
The utlity model has following advantage and good effect: simple in structure, self-locking property is reliable; Locking fast, anchoring construction are conveniently; Anchored force can be delivered to anchor hole the bottom, realize in long anchor pole end anchorage; Can be used as quick prestressed anchor.
Description of drawings
Fig. 1, the utility model overall structure figure
Fig. 2, the structural representation of hanging one's head
Hang one's head after Fig. 3, top tapered end insert and hang one's head and open schematic diagram
Fig. 4, the utility model anchoring status figure (9 is anchor foundation among the figure).
Claims (3)
1, the instantaneous self-locking prestressed anchor of middle long explosive expansion, it is characterized in that including: anchor rod body (4), ring-shaped explosive powder stick (3), hang one's head (2) and top tapered end (1), the anchor rod body top with hang one's head between be connected with welding manner, the ring-shaped explosive powder stick places in the interior annular powder stick casing (5) of the casing of hanging one's head, wrap in outside the anchor rod body, anchor rod body inserts anchor rod body in the inserting hole (6), the top tapered end vertically has six equal portions cone tanks, and the awl point stretches in the six equal portions parallel slots (7) of hanging one's head.
2, prestressed anchor according to claim 1, the internal diameter that it is characterized in that ring-shaped explosive powder stick (3) less than: the external diameter of anchor rod body (4), the external diameter of ring-shaped explosive powder stick is less than the internal diameter of the casing of hanging one's head.
3, prestressed anchor according to claim 1 is characterized in that tapered end 1 profile in top is a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229312 CN2579953Y (en) | 2002-05-08 | 2002-05-08 | Instantaneous self locking prestress anchor rod for medium and long explosive extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02229312 CN2579953Y (en) | 2002-05-08 | 2002-05-08 | Instantaneous self locking prestress anchor rod for medium and long explosive extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579953Y true CN2579953Y (en) | 2003-10-15 |
Family
ID=33705648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02229312 Expired - Fee Related CN2579953Y (en) | 2002-05-08 | 2002-05-08 | Instantaneous self locking prestress anchor rod for medium and long explosive extension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2579953Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132520A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Pipe type anchor rod with horn-shaped bottom end |
| CN103132514A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Detent type anchor rod |
| CN103470288A (en) * | 2013-09-02 | 2013-12-25 | 山西潞安环保能源开发股份有限公司 | Anchoring split adjustable anchor rod filled in explosion expanded cavity |
| CN106284338A (en) * | 2015-06-08 | 2017-01-04 | 中铁建工集团有限公司 | Mechanical type nail anchor device and the using method of anchor pole is headed into between PCMW engineering method stake |
-
2002
- 2002-05-08 CN CN 02229312 patent/CN2579953Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132520A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Pipe type anchor rod with horn-shaped bottom end |
| CN103132514A (en) * | 2011-11-30 | 2013-06-05 | 兰州大学 | Detent type anchor rod |
| CN103132514B (en) * | 2011-11-30 | 2015-07-15 | 兰州大学 | Detent type anchor rod |
| CN103470288A (en) * | 2013-09-02 | 2013-12-25 | 山西潞安环保能源开发股份有限公司 | Anchoring split adjustable anchor rod filled in explosion expanded cavity |
| CN106284338A (en) * | 2015-06-08 | 2017-01-04 | 中铁建工集团有限公司 | Mechanical type nail anchor device and the using method of anchor pole is headed into between PCMW engineering method stake |
| CN106284338B (en) * | 2015-06-08 | 2023-11-17 | 中铁建工集团有限公司 | Mechanical anchor nailing device for jacking anchor rods between piles by PCMW construction method and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |