CN103343536A - Detent-type soil anchor rod and application thereof - Google Patents
Detent-type soil anchor rod and application thereof Download PDFInfo
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- CN103343536A CN103343536A CN2013102897500A CN201310289750A CN103343536A CN 103343536 A CN103343536 A CN 103343536A CN 2013102897500 A CN2013102897500 A CN 2013102897500A CN 201310289750 A CN201310289750 A CN 201310289750A CN 103343536 A CN103343536 A CN 103343536A
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Abstract
The invention discloses a detent-type soil anchor rod and application thereof. The detent-type soil anchor rod comprises a steel pipe, wherein external threads are arranged on the outer end portion of the steel pipe, and a stop-grouting plug, a tray and a nut are arranged. The detent-type soil anchor rod is characterized in that grouting holes are formed in the steel pipe every a certain distance, steel wire detents are arranged on steel pipe walls among the grouting holes, and a tapered closing cap is arranged at the front end of the steel pipe. Due to the facts that the steel wire detents are arranged at intervals and have certain elastic tension, then steel wire detents can only advance and cannot quit when the steel wire detents enter a soil layer, and pulling prevention capacity of the anchor rod is greatly increased; the arranged grouting holes enable grout to outflow from each section of the anchor rod to permeate soil mass and fill gaps disturbed by detents, an anchor rod section of a step-shaped and with a variable diameter can be formed after grouting, and binding force of the anchor rod and the soil layer is greatly improved; because of the arranged tapered closing cap, front end resistance is reduced, holes do not need to be formed in a side slope soil layer with loose soil textures and the holes cannot be formed in the side slope soil layer neither, and construction is convenient to achieve.
Description
Technical field
The present invention relates to soil layer side slope or base pit engineering and reinforce the soil bolt of usefulness.
Background technology
Soil bolt is called for short soil anchor bolt, be the hole that the Tu Bi of the side slope of reinforcing at need or foundation ditch bores certain depth, in the hole, put into materials such as reinforcing bar, steel pipe, steel tendon, steel strand, pour into mud or chemical grout, itself and soil layer are combined as a whole, reach the effect of soil mass consolidation.Because relatively other reinforcement means has that cost is low, consolidation effect good and advantage such as easy construction, be widely used in the various soil layer stabilization workss such as soil layer side slope, pattern foundation pit supporting structure, retaining wall, diaphragm wall, abutment reinforcing, shown vigorous vitality in the reinforcing to poor strata, its consumption has the trend that rises year by year.
But, currently used soil anchor bolt is because simple in structure, when soil layer intensity weak (as drifting sand layer, mud, boulder bed and part miscellaneous fill layer), anchor bolt construction pore-forming difficulty, and the anchoring body of soil bolt and soil layer adhesion are lower, the resistance to plucking ability is low, is difficult to get a desired effect.Therefore in actual engineering, because not enough the making of the anchored force of soil bolt reinforced the accident that inefficacy causes and happened occasionally.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of pawl type soil bolt; The present invention provides simultaneously and utilizes this pawl type soil bolt to soil layer side slope or base pit engineering reinforcement means.
A kind of pawl type soil bolt, it comprises a steel pipe, the outer end of steel pipe is provided with external screw thread, stop grouting plug, pallet and nut be equipped with and, it is characterized in that, whenever keep at a certain distance away on the steel pipe and be provided with injected hole, the steel pipe walls between injected hole is provided with the steel wire ratchet, and the front end of steel pipe is provided with the taper closing cover.
The preferable configuration of above-mentioned steel wire ratchet is: be processed with perforation in steel pipe walls, to penetrating steel bar in the perforation, the two ends of steel bar are exposed the back and are formed the splayed shape to oblique rear warpage to exposing the perforation.
For around anchored force is arranged, be provided with on four cross directions the steel wire ratchet of symmetry at the same section of steel pipe.During enforcement, penetrate the steel bar of two right-angled intersections at the same section of steel pipe, make the steel pipe four direction be provided with the steel wire ratchet of symmetry.
Above-mentioned taper closing cover is the bullet that is directly processed by the steel pipe front end, and perhaps the taper closing cover is the parts of processing separately and is welded as a whole with steel pipe.
The method of utilizing above-mentioned pawl type soil bolt that the soil layer side slope is reinforced has following two kinds of situations.
One, when the soil layer slope reinforcement of holing to suiting, at first hole with rig, utilize rig that the pawl type soil bolt is pushed in the boring after the boring, stop grouting plug is installed in the aperture, in the pawl type soil bolt, inject slurries then, slurries flow out from each injected hole and are full of in the hole of the soil body around the anchor pole, treat to install pallet and fastening nut after slurries solidify.
Two, to the soil layer slope reinforcement of Completion of Drilling Hole difficulty the time, directly the pawl type soil bolt is pushed in the soil layer with hydraulic drill rig or impact drill, stop grouting plug is installed in the aperture, and in the pawl type soil bolt, inject slurries, slurries flow out and are full of the boring slit around the anchor pole from each injected hole, treat to install pallet and tightening nuts after slurries solidify.
Above-mentioned slurries refer to that neat slurry, cement mortar or chemical grout are wherein a kind of.
In order to guarantee grouting quality, before the slip casting, should clean the foreign material of steel duct earlier with high-pressure blast, carry out slip casing by pressure then.
Advantage of the present invention is:
1, owing to be provided with the steel wire ratchet of spacing distance, the steel wire ratchet has certain elasticity tension, enters in the soil layer, and can only advance and can not withdraw from, and has increased the resistance to plucking ability of anchor pole widely;
2, owing to be provided with the injected hole of spacing distance, slurries flowed out to soil body penetration from each section of anchor pole, and be full of the slit of ratchet disturbance, can form the anchoring section of stepped change diameter after the slip casting, improve the adhesion of anchor pole and soil layer widely;
3, because front end is provided with the taper closing cover, reduced preceding end resistance, do not need pore-forming in the loose side slope soil layer of soil property that can not pore-forming, methods such as available hydraulic rig, impact drill or artificial hammering are directly with in the anchor pole injection underground layer, easy construction.
Description of drawings
Fig. 1 is the structure chart of the embodiment of the invention;
Fig. 2 is the A-A cross section enlarged drawing of Fig. 1;
Fig. 3 is the design sketch after the slip casting.
Marginal data: 1-steel pipe; The 2-nut; The 3-pallet; The 4-stop grouting plug; The 5-injected hole; 6-steel wire ratchet; 7-taper closing cover; The 8-slurries.
The specific embodiment
Pawl type soil bolt as shown in Figure 1, it comprises a steel pipe 1, the rearward end of steel pipe 1 is provided with external screw thread, stop grouting plug 4, pallet 3 and nut 2 be equipped with and, wherein whenever keep at a certain distance away on the steel pipe 1 and be provided with injected hole 5, steel pipe 1 wall between the injected hole is provided with steel wire ratchet 6, and the front end of steel pipe 1 is provided with taper closing cover 7.
The structure of steel wire ratchet 6 is as shown in Figure 1 and Figure 2: be processed with perforation at steel pipe 1, to penetrating steel bar in the perforation, the two ends of steel bar are from forming the splayed shape to exposing the back the perforation to oblique rear warpage.As can be seen from Figure 2: penetrate the steel bar of two right-angled intersections at steel pipe 1 same section, make the steel pipe four direction be provided with the steel wire ratchet of symmetry.
Above-mentioned taper closing cover 7 is the bullets that directly processed by steel pipe 1 front end, or the parts of processing separately and be welded as a whole with steel pipe 1.
The method of utilizing above-mentioned pawl type soil bolt that the soil layer side slope is reinforced has two kinds:
But one, in to the soil layer side slope of pore-forming, reinforce when using, at first hole with rig, the boring back pushes the pawl type soil bolt in the boring with roof bolting machine, stop grouting plug 4 is installed in the aperture, and in the pawl type soil bolt, inject slurries 8, slurries 8 flow out and are full of the boring slit around the anchor pole from each injected hole 5, treat to install pallet 3 and fastening nut 2 after slurries 8 solidify.Effect after the slip casting is seen Fig. 3.
Two, in the loose soil layer side slope of soil property that can not pore-forming, reinforce when using, directly the pawl type soil bolt is pushed in the soil layer with hydraulic drill rig or roof bolting machine, the aperture is installed and is ended slurry, 4, and in the pawl type soil bolt, inject slurries 8, slurries 8 flow out and are full of the hole wall slit around the anchor pole from each injected hole 5, treat to install pallet 3 and fastening nut 2 after slurries 8 solidify.Effect after the slip casting is seen Fig. 3.
In order to guarantee grouting quality, before the slip casting, should clean the foreign material of steel pipe 1 inside earlier with high-pressure blast, carry out slip casing by pressure then.Slurries are selected from neat slurry, cement mortar or chemical grout.
Claims (6)
1. pawl type soil bolt, it comprises a steel pipe, the outer end of steel pipe is provided with external screw thread, stop grouting plug, pallet and nut be equipped with and, it is characterized in that, whenever keep at a certain distance away on the steel pipe and be provided with injected hole, the steel pipe walls between injected hole is provided with the steel wire ratchet, and the front end of steel pipe is provided with the taper closing cover.
2. soil bolt as claimed in claim 1 is characterized in that, the structure of above-mentioned steel wire ratchet is: be processed with perforation at steel pipe, penetrate steel bar in the perforation, expose from perforation at the two ends of steel bar, exposes the back and form the splayed shape to oblique rear warpage.
3. soil bolt as claimed in claim 1 is characterized in that, is provided with the steel wire ratchet of symmetry on four cross directions at the same section of steel pipe.
4. soil bolt as claimed in claim 3 is characterized in that, penetrates the steel bar of two right-angled intersections at the same section of steel pipe, makes the steel pipe four direction be provided with the steel wire ratchet of symmetry.
5. soil bolt as claimed in claim 1 is characterized in that, described taper closing cover is the bullet that is directly processed by the steel pipe front end, or the parts of processing separately and be welded as a whole with steel pipe.
6. method of utilizing the described pawl type soil bolt of claim 1 that the soil layer side slope is reinforced, it is characterized in that: it is divided into following two kinds of situations:
First kind of situation: when at the soil layer slope reinforcement of holing to suiting, at first hole with rig, utilize rig that the pawl type soil bolt is pushed in the boring after the boring, stop grouting plug is installed in the aperture, in the pawl type soil bolt, inject slurries then, slurries flow out from each injected hole and are full of in the hole of the soil body around the anchor pole, treat to install pallet and fastening nut after slurries solidify;
Second kind of situation: when to the soil layer slope reinforcement of Completion of Drilling Hole difficulty the time, directly the pawl type soil bolt is pushed in the soil layer with hydraulic drill rig or impact drill, stop grouting plug is installed in the aperture, and in the pawl type soil bolt, inject slurries, slurries flow out and are full of the boring slit around the anchor pole from each injected hole, treat to install pallet and tightening nuts after slurries solidify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289750.0A CN103343536B (en) | 2013-07-08 | 2013-07-08 | Pawl type soil bolt and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289750.0A CN103343536B (en) | 2013-07-08 | 2013-07-08 | Pawl type soil bolt and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103343536A true CN103343536A (en) | 2013-10-09 |
| CN103343536B CN103343536B (en) | 2016-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310289750.0A Expired - Fee Related CN103343536B (en) | 2013-07-08 | 2013-07-08 | Pawl type soil bolt and application thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572757A (en) * | 2013-11-07 | 2014-02-12 | 山东交通学院 | Multi-level back-grasp-type hollow anchor rod and construction method thereof |
| CN104805839A (en) * | 2015-05-13 | 2015-07-29 | 江创葵 | Engineering anchor |
| CN105257328A (en) * | 2015-11-30 | 2016-01-20 | 湖南科技大学 | Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof |
| CN107816343A (en) * | 2017-09-04 | 2018-03-20 | 中国科学院武汉岩土力学研究所 | The bottom hole fixing device of deformation measuring staff in a kind of rock body drilled |
| CN107829770A (en) * | 2017-11-30 | 2018-03-23 | 中国科学院武汉岩土力学研究所 | Spaced anchorage mechanical rock bolt |
| CN108193679A (en) * | 2018-01-29 | 2018-06-22 | 南昌大学 | A kind of groined type reinforcement novel anchor rod |
| CN108756979A (en) * | 2018-06-29 | 2018-11-06 | 武汉科技大学 | A kind of overall length reverse wedge formula prestressed anchor and its application method |
| CN108914948A (en) * | 2018-05-17 | 2018-11-30 | 广东卓建实业集团有限公司 | Breakage mountain body restorative procedure |
| CN109577327A (en) * | 2019-01-24 | 2019-04-05 | 安徽理工大学 | One kind can slip casting resistance to plucking prestress anchor device |
| CN110295594A (en) * | 2019-06-19 | 2019-10-01 | 新汶矿业集团有限责任公司 | A kind of finned high power anchor bolt and its installation method |
| CN112962595A (en) * | 2021-02-22 | 2021-06-15 | 王大亮 | Anchor rod |
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| EP0064362A2 (en) * | 1981-04-22 | 1982-11-10 | Neste Oy | Rock bolt |
| CN2245121Y (en) * | 1996-05-24 | 1997-01-15 | 李晓峰 | Self-propelling anchoring-bolt |
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| CN2780833Y (en) * | 2005-04-12 | 2006-05-17 | 秦皇岛市燕盛岩土工程咨询有限公司 | Self-drill gruniting roofbolt |
| CN101324067A (en) * | 2008-07-25 | 2008-12-17 | 孙艾琳 | Ecological anchor rod and method for slope soil and water conservation using the same |
| CN202055244U (en) * | 2011-05-09 | 2011-11-30 | 葛洲坝集团试验检测有限公司 | Soil compaction type anchor bolt |
| CN202359557U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Pawl type anchor rod |
| CN202595739U (en) * | 2012-05-17 | 2012-12-12 | 王茂华 | Anchor rod suitable for soft soil layer |
| CN202596756U (en) * | 2012-01-01 | 2012-12-12 | 谢理想 | Shell-expanding high-strength grouting bolt |
| CN203320527U (en) * | 2013-07-08 | 2013-12-04 | 山东科技大学 | Pawl type soil anchor rod |
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2013
- 2013-07-08 CN CN201310289750.0A patent/CN103343536B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0064362A2 (en) * | 1981-04-22 | 1982-11-10 | Neste Oy | Rock bolt |
| CN2245121Y (en) * | 1996-05-24 | 1997-01-15 | 李晓峰 | Self-propelling anchoring-bolt |
| CN2723681Y (en) * | 2004-09-03 | 2005-09-07 | 蒋敬平 | Inner anchor external injection type anchor rod |
| CN2780833Y (en) * | 2005-04-12 | 2006-05-17 | 秦皇岛市燕盛岩土工程咨询有限公司 | Self-drill gruniting roofbolt |
| CN101324067A (en) * | 2008-07-25 | 2008-12-17 | 孙艾琳 | Ecological anchor rod and method for slope soil and water conservation using the same |
| CN202055244U (en) * | 2011-05-09 | 2011-11-30 | 葛洲坝集团试验检测有限公司 | Soil compaction type anchor bolt |
| CN202359557U (en) * | 2011-11-30 | 2012-08-01 | 兰州大学 | Pawl type anchor rod |
| CN202596756U (en) * | 2012-01-01 | 2012-12-12 | 谢理想 | Shell-expanding high-strength grouting bolt |
| CN202595739U (en) * | 2012-05-17 | 2012-12-12 | 王茂华 | Anchor rod suitable for soft soil layer |
| CN203320527U (en) * | 2013-07-08 | 2013-12-04 | 山东科技大学 | Pawl type soil anchor rod |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572757A (en) * | 2013-11-07 | 2014-02-12 | 山东交通学院 | Multi-level back-grasp-type hollow anchor rod and construction method thereof |
| CN103572757B (en) * | 2013-11-07 | 2016-08-17 | 山东交通学院 | A kind of multi-level back-grasp-type hollow anchor rod and construction method thereof |
| CN104805839A (en) * | 2015-05-13 | 2015-07-29 | 江创葵 | Engineering anchor |
| CN105257328A (en) * | 2015-11-30 | 2016-01-20 | 湖南科技大学 | Segmented anchoring and grouting anchor rod device capable of achieving automatic clamping and anchoring method thereof |
| CN105257328B (en) * | 2015-11-30 | 2017-07-28 | 湖南科技大学 | A kind of the segmentation archoring slip casting archoring-balt device and its anchoring process of energy automatic clamping |
| CN107816343A (en) * | 2017-09-04 | 2018-03-20 | 中国科学院武汉岩土力学研究所 | The bottom hole fixing device of deformation measuring staff in a kind of rock body drilled |
| CN107829770A (en) * | 2017-11-30 | 2018-03-23 | 中国科学院武汉岩土力学研究所 | Spaced anchorage mechanical rock bolt |
| CN108193679A (en) * | 2018-01-29 | 2018-06-22 | 南昌大学 | A kind of groined type reinforcement novel anchor rod |
| CN108914948A (en) * | 2018-05-17 | 2018-11-30 | 广东卓建实业集团有限公司 | Breakage mountain body restorative procedure |
| CN108756979A (en) * | 2018-06-29 | 2018-11-06 | 武汉科技大学 | A kind of overall length reverse wedge formula prestressed anchor and its application method |
| CN109577327A (en) * | 2019-01-24 | 2019-04-05 | 安徽理工大学 | One kind can slip casting resistance to plucking prestress anchor device |
| CN109577327B (en) * | 2019-01-24 | 2024-03-26 | 安徽理工大学 | Grouting anti-pulling prestressed anchor rod device |
| CN110295594A (en) * | 2019-06-19 | 2019-10-01 | 新汶矿业集团有限责任公司 | A kind of finned high power anchor bolt and its installation method |
| CN112962595A (en) * | 2021-02-22 | 2021-06-15 | 王大亮 | Anchor rod |
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| CN103343536B (en) | 2016-05-18 |
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Granted publication date: 20160518 Termination date: 20170708 |