CN202936786U - Strip-shaped anti-sliding key tubular anchor rod - Google Patents
Strip-shaped anti-sliding key tubular anchor rod Download PDFInfo
- Publication number
- CN202936786U CN202936786U CN 201220551262 CN201220551262U CN202936786U CN 202936786 U CN202936786 U CN 202936786U CN 201220551262 CN201220551262 CN 201220551262 CN 201220551262 U CN201220551262 U CN 201220551262U CN 202936786 U CN202936786 U CN 202936786U
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- rod
- tube wall
- tubular type
- type body
- rock
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Abstract
The utility model relates to a strip-shaped anti-sliding key tubular anchor rod which comprises a tubular rod body, a baffle ring and a bearing plate, wherein the tubular rod body has two opened ends and is hollow, a plurality of rectangular openings are distributed on the tube wall of the tubular rod body, the top of the tubular rod body is filled with stemming and provided with the baffle ring with the bearing plate; a primary explosive bag loaded with a detonator is arranged inside the tube wall at the bottom of the tubular rod body; and columnar loading is arranged inside the tube wall provided with the rectangular openings. The strip-shaped anti-sliding key tubular anchor rod provided by the utility model has a simple structure, is convenient to construct, is low in cost, can immediately provide an anchoring force for control the deformation of a rock-soil body, and meanwhile improves a load transfer mechanism for geotechnical anchoring so as to improve the anchoring force of the anchor rod. Therefore, the stability of the rock-soil body is significantly improved, and the safety of anchoring engineering is enabled to be enhanced greatly.
Description
Technical field
The utility model relates to Anchorage Technology, relates in particular to bar shaped antiskid key pipe anchor rod.
Background technology
Ground anchorage is by being embedded in the anchor pole in the stratum, the stratum is locked together tightly, rely on the interaction of anchor pole-injecting cement paste-hole wall ground muscle power, transfer and improve self intensity and self-stable ability of Rock And Soil, improvement by the stress state of anchoring Rock And Soil making it stable, thereby guarantee the technology of engineering safety.The engineering of Anchorage Technology is used and was come from for 19 end of the centurys, development along with its theoretical research and technology, in the mine, the fields such as water conservancy, water power, highway, railway, municipal administration, urban construction, geology, military project obtain extensive use, as a kind of comparatively desirable support form, play a significant role in underground construction, slope project, deep-foundation pit engineering etc. stable.
Ground anchorage not only is subject to the impact of formation lithology, Rock-soil Mass Structure, geological structure, hydrogeology etc., also may be subject to the effect of violent earthquake, and they all constitute a threat to the safety of ground anchorage.
During the construction and operation of ground anchorage, anchor pole is extracted from injecting cement paste, anchor pole is extracted from anchor hole together with injecting cement paste is two kinds of ground anchorage mode of failure the most basic, and they all can cause ground anchorage to lose efficacy, and bring hidden danger to engineering safety.In order to ensure engineering safety, must limit the anchored force of anchor pole.When the anchored force that provides when needs is larger, the common bolt anchoring can not be satisfied the needs of engineering, this restricts the application and development of Anchorage Technology undoubtedly, how to improve the Load Transfer mechanism of ground anchorage, overcome the drawback of common bolt anchoring, become the raising anchor-holding force of anchor bolt, promote the fundamental way of Anchorage Technology development.
In addition, almost can not provide anchored force before the injecting cement paste in ground anchorage is fixed, therefore can not adapt to the requirement that the rear requirement of weak rocks soil body excavation provides anchored force immediately.Although existing pipe-seam type anchor rod overcomes to some extent to above-mentioned shortcoming, can provide immediately anchored force after rockbolt installation, be conducive in time control the distortion of Rock And Soil, the anchored force that can provide is little; Simultaneously, because soft rock-soil cognition is clamp-oned tube chamber from the pipe seam of pipe-seam type anchor rod, also will cause the further decline of anchored force.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of anchored force that can provide immediately to control the Rock And Soil distortion, improves simultaneously the Load Transfer mechanism of ground anchorage to improve the bar shaped antiskid key pipe anchor rod of anchor-holding force of anchor bolt.
For addressing the above problem, bar shaped antiskid key pipe anchor rod described in the utility model is characterized in that: it comprises the tubular type body of rod and baffle ring and the backing plate of both ends open, hollow; Be distributed with a plurality of rectangle holes on the tube wall of the described tubular type body of rod, its top is filled stemming and is provided with described baffle ring with described backing plate; Be provided with the igniting primer that detonator is housed in the tube wall of described tubular type body of rod bottom; Be provided with in the described tube wall of described rectangle hole and be provided with column charge.
Described detonator is connected with the detonator payment to a porter.
The described tubular type body of rod in long edge of described rectangle hole axially, its minor face along the described tubular type body of rod circumferentially.
The utility model compared with prior art has the following advantages:
1, in the tube wall due to the tubular type body of rod in the utility model, igniting primer and the column charge that detonator has been installed is housed.at first, the blast of igniting primer and column charge in anchor rod body produces strong effect to tube wall, make tubular type body of rod generation plastic strain, cause tube wall radial dilatation extruding Rock And Soil, anchored force can be provided immediately, the relative sliding that stops Rock And Soil and anchor pole reaches the effect of anchoring at once, the particularly important is, the detonation gas that the blast of column charge produces is directly to the impact compress consumingly of the Rock And Soil on the right drill hole wall of the rectangle hole of tubular type body of rod tube wall, cause the hole wall Rock And Soil to be pulverized, and the Rock And Soil that makes depths more is because of pressurized radially, hoop tension and fragmentation, rectangle hole place's formation bar shaped pit at tube wall, thereupon to filling slurry in tubular type body of rod tube chamber and bar shaped pit, injecting cement paste in the bar shaped pit forms bar shaped antiskid key, the tubular type body of rod and Rock And Soil are combined closely, that is by means of the bar shaped antiskid key of embolism between hole wall Rock And Soil and the tubular type body of rod dearly, fundamentally changed the anchoring load pass through mechanism, built friction-antiskid key NEW TYPE OF COMPOSITE anchoring, improved significantly the ground anchorage effect, transferred better the self-stable ability of Rock And Soil, effectively prevented anchor rod anchored inefficacy, thereby improved the stability of Rock And Soil, the safety of anchoring engineering is greatly enhanced.
2, the utility model simple in structure, be convenient to processing, easy construction, with low cost, can speed up the work significantly, improve the ground anchorage effect.
Description of drawings
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is powder charge shaft section figure schematic diagram before the utility model explosion.
Fig. 3 is the tubular type body of rod and rectangle hole schematic diagram before the utility model explosion.
In figure: 1-Rock And Soil, the 2-injecting cement paste 3-boring 4-tubular type body of rod 5-tubular type body of rod bottom 6-bar shaped antiskid key 7-baffle ring 8-backing plate 9-igniting primer 10-detonator 11-detonator payment to a porter 12-column charge 13-stemming 14-tube wall 15-rectangle hole.
The specific embodiment
As shown in Fig. 1 ~ 3, bar shaped antiskid key pipe anchor rod, it comprises the tubular type body of rod 4 and baffle ring 7 and the backing plate 8 of both ends open, hollow.Be distributed with a plurality of rectangle holes 15 on the tube wall 14 of the tubular type body of rod 4, its top is filled stemming 13 and is provided with baffle ring 7 with backing plate 8; Be provided with the igniting primer 9 that detonator 10 is housed in the tube wall 14 of tubular type body of rod bottom 5; Be provided with in the tube wall 14 of rectangle hole 15 and be provided with column charge 12.
Wherein: detonator 10 is connected with detonator payment to a porter 11.
The long edge tubular type body of rod 4 of rectangle hole 15 axially, its minor face along the tubular type body of rod 4 circumferentially.
during use, ⑴ arranges boring 3 by designing requirement to the weak rocks soil body 1, ⑵ head into the tubular type body of rod 4 of external diameter than the boring 3 little 1 ~ 2mm in aperture in boring 3, at the tubular type body of rod 4 tops filling stemmings 13, ⑶ utilize between column charge 12 powder sticks the interval less than gap distance, by induced detonation all column charges 12 of explosion that at once detonate, ⑷ plastic strain occurs in the tube wall 14 that detonation orders about the tubular type body of rod 4, and radial dilatation extruding Rock And Soil 1 provides anchored force immediately, controls the distortion of Rock And Soil 1, simultaneously, the detonation gas that the blast of column charge 12 produces is directly to the impact compress consumingly of the Rock And Soil 1 on the right drill hole wall of the rectangle hole 15 of the tubular type body of rod 4 tube walls 14, cause hole wall Rock And Soil 1 to be pulverized, and the Rock And Soil 1 that makes depths more is broken because of pressurized radially, hoop tension, forms the bar shaped pit at rectangle hole 15 places of tube wall 14, ⑸ to the tubular type body of rod 4 filling and injecting slurry bodies 2, make injecting cement paste 2 not only be full of the tube chamber of the tubular type body of rod 4, and fill slurry 2 by 15 pairs of bar shaped pits of rectangle hole of tube wall 14, until part injecting cement paste 2 is filled among the crack of Rock And Soil 1, the bar shaped antiskid key 6 that injecting cement paste 2 in the bar shaped pit forms is combined closely the tubular type body of rod 4 and Rock And Soil 1, that is by means of the bar shaped antiskid key 6 of embolism between hole wall Rock And Soil 1 and the tubular type body of rod 4 dearly, fundamentally changed the anchoring load pass through mechanism, built up friction-antiskid key NEW TYPE OF COMPOSITE anchoring, improved significantly the ground anchorage effect, transferred better the self-stable ability of Rock And Soil 1, effectively prevented anchor rod anchored inefficacy, thereby improved the stability of Rock And Soil 1, the safety of anchoring engineering is greatly enhanced.
Claims (3)
1. bar shaped antiskid key pipe anchor rod, it is characterized in that: it comprises the tubular type body of rod (4) and baffle ring (7) and the backing plate (8) of both ends open, hollow; Be distributed with a plurality of rectangle holes (15) on the tube wall (14) of the described tubular type body of rod (4), its top is filled stemming (13) and is provided with described baffle ring (7) with described backing plate (8); Be provided with the igniting primer (9) that detonator (10) are housed in the tube wall (14) of described tubular type body of rod bottom (5); Be provided with in the described tube wall (14) of described rectangle hole (15) and be provided with column charge (12).
2. bar shaped antiskid key pipe anchor rod as claimed in claim 1, it is characterized in that: described detonator (10) is connected with detonator payment to a porter (11).
3. bar shaped antiskid key pipe anchor rod as claimed in claim 1 is characterized in that: the described tubular type body of rod in the long edge of described rectangle hole (15) (4) axially, its minor face along the described tubular type body of rod (4) circumferentially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220551262 CN202936786U (en) | 2012-10-26 | 2012-10-26 | Strip-shaped anti-sliding key tubular anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220551262 CN202936786U (en) | 2012-10-26 | 2012-10-26 | Strip-shaped anti-sliding key tubular anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202936786U true CN202936786U (en) | 2013-05-15 |
Family
ID=48321032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220551262 Expired - Fee Related CN202936786U (en) | 2012-10-26 | 2012-10-26 | Strip-shaped anti-sliding key tubular anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202936786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774658A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Bar-shaped anti-sliding key tube type anchor rod |
-
2012
- 2012-10-26 CN CN 201220551262 patent/CN202936786U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103774658A (en) * | 2012-10-26 | 2014-05-07 | 兰州大学 | Bar-shaped anti-sliding key tube type anchor rod |
| CN103774658B (en) * | 2012-10-26 | 2016-01-06 | 兰州大学 | Bar shaped antiskid key pipe anchor rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20151026 |
|
| EXPY | Termination of patent right or utility model |