CN201183950Y - Self-propelling type anchor rod of seamless steel pipe - Google Patents
Self-propelling type anchor rod of seamless steel pipe Download PDFInfo
- Publication number
- CN201183950Y CN201183950Y CNU2008200193911U CN200820019391U CN201183950Y CN 201183950 Y CN201183950 Y CN 201183950Y CN U2008200193911 U CNU2008200193911 U CN U2008200193911U CN 200820019391 U CN200820019391 U CN 200820019391U CN 201183950 Y CN201183950 Y CN 201183950Y
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- Prior art keywords
- seamless steel
- steel pipe
- self
- pipe
- drilling rod
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- Expired - Fee Related
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Abstract
The utility model discloses a seamless steel pipe self-advancing roof bolt which is characterized in that the roof bolt comprises a drill pipe and a detachable lengthening pipe; the drill pipe and the lengthening pipe are both seamless steel pipes and are connected together by adopting screw threads; the top end of the drill pipe is provided with a drill bit, a screw panel used for orientation and reinforcing anchorage force is arranged on the drill pipe, and the drill pipe is provided with one or two slurry outlets. Compared with a traditional roof bolt, the seamless steel pipe self-advancing roof bolt has the advantages of guarantee of construction quality, cost conservation, reduction of construction period, etc., and has favorable technical and economic effect.
Description
Technical field
The utility model belongs to foundation pit supporting construction, specifically the improvement that self-feeding anchor pile is done.
Background technology
Border on the sea deep pit digging under the complex geological condition, because the influence of special geological condition and higher groundwater table, foundation ditch adopts the support water stop system of " pile-anchor retaining+rotary churning pile water stopping curtain " usually.Anchor bolt construction wherein all is in layer of sand, adopts traditional construction technology (processing of auger boring → pore-forming → anchor pole, the slip casting → maintenance installation → first time → slip casting second time) can not realize at all, and anchor hole can not moulding; Adopt sleeve pipe follow-up formula anchor rod construction process (the scum silica frost flushing → skyhook body of rod → slip casting in casing pipe hole forming → pipe → machinery is extracted sleeve pipe → secondary grouting → anchor pole moulding), for being feasible under the geological conditionss such as the miscellaneous fill layer more than the groundwater table, mud, argillic horizon, but be used for groundwater table following, not only cost height, inefficiency under the geological conditionss such as thin, coarse sands layer, gravel layer, and be difficult to solve following problem:
(1) close on the marine site, groundwater table is higher, and the inside and outside differential water pressures that forms of foundation ditch is very big, forms the quicksand phenomenon easily, causes foundation ditch Po Ding ground big sedimentation to occur, influences the safety of peripheral building, underground utilities, pipe trench etc.
(2) quicksand causes that grouting serous fluid runs off, and anti-pulling of anchor bar can not meet design requirement.
(3) serious quicksand can be with sleeve pipe " locking ", and rig creeps into difficulty, move even if can bore, but drilling depth is slow, inefficiency.
Summary of the invention
The utility model provides a kind of seamless steel pipe self-feeding anchor pile at the deficiency of prior art, this anchor pole be applicable to groundwater table following in, the anchor bolt construction in thin, the coarse sands layer.
Below introduce structure of the present utility model in detail, a kind of seamless steel pipe self-feeding anchor pile comprises drilling rod and removable extension bar two parts, and described drilling rod and extension bar all adopt seamless pipe, adopt screwed connection between them; The drilling rod top is provided with drill bit, and flight directed and that the enhancing anchored force is used also has been set on the drilling rod, and drilling rod is provided with 1 or 2 grout outlets.
Optimally, the length of described drilling rod and extension bar is 2～3 meters.
The utility model has the advantages that present technique compares to have with traditional anchor pole can guarantee workmanship, saves cost, and advantages such as reduction of erection time have good technology economic.The seamless steel pipe self-feeding anchor pile does not need pore-forming, but directly will creep into as the hollow steel tube of the body of rod, has solved the collapse problem in hole of anchor hole in the layer of sand; Behind the anchor pole drilling to completion, and then carry out slip casting,, adopt directly slip casting in pipe of high-pressure injection pump, form the anchoring body that enlarges, guarantee the anchoring requirement in the anchor pole bottom promptly by the aperture on hollow steel tube and the front end tube wall.The seamless steel pipe self-feeding anchor pile directly will creep into as the hollow steel tube of the body of rod, solved the collapse problem in hole of anchor hole in the layer of sand, makes the surrounding enviroment can be because of gushing sand, water burst and big sedimentation occurs, and is secure to surrounding enviroment safety.The seamless steel pipe self-feeding anchor pile is compared with other several anchor rod construction methods, and grouting amount, uplift resistance all can reach designing requirement.But the seamless steel pipe self-feeding anchor pile has the suitable stratum of its uniqueness, and other several method is difficult for implementing in this stratum, and some method is basic just not to become the hole.The simple and easy seamless steel pipe self-feeding anchor pile that the seamless steel pipe self-feeding anchor pile is adopted is compared with finished product self-feeding anchor pile in the market, and cost reduces greatly.
Description of drawings
Figure of description 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with Figure of description utility model is done further to disclose.
Embodiment 1:
See also Figure of description, a kind of seamless steel pipe self-feeding anchor pile comprises drilling rod 1 and removable extension bar 2 two parts, and the length of drilling rod and extension bar is 2～3 meters.Described drilling rod 1 and extension bar 2 all adopt the seamless steel pipe of 6.5 millimeters of 53 millimeters wall thickness of diameter, adopt screwed connection between them; Drilling rod 1 top is provided with drill bit 3, and flight 4 directed and that the enhancing anchored force is used also has been set on the drilling rod 1, and the flight diameter is according to designing requirement; Drilling rod is provided with 1 or 2 grout outlets 5.
Claims (2)
1, a kind of seamless steel pipe self-feeding anchor pile is characterized in that comprising drilling rod and removable extension bar two parts, and described drilling rod and extension bar all adopt seamless pipe, adopt screwed connection between them; The drilling rod top is provided with drill bit, and flight directed and that the enhancing anchored force is used also has been set on the drilling rod, and drilling rod is provided with 1 or 2 grout outlets.
2, seamless steel pipe self-feeding anchor pile according to claim 1, the length that it is characterized in that described drilling rod and extension bar is 2～3 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200193911U CN201183950Y (en) | 2008-03-11 | 2008-03-11 | Self-propelling type anchor rod of seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200193911U CN201183950Y (en) | 2008-03-11 | 2008-03-11 | Self-propelling type anchor rod of seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201183950Y true CN201183950Y (en) | 2009-01-21 |
Family
ID=40271686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200193911U Expired - Fee Related CN201183950Y (en) | 2008-03-11 | 2008-03-11 | Self-propelling type anchor rod of seamless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201183950Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562107A (en) * | 2010-11-11 | 2012-07-11 | 喜利得股份公司 | Anchor component, in particular for mining and tunnel construction |
| CN104141305A (en) * | 2014-07-30 | 2014-11-12 | 武汉武大巨成结构股份有限公司 | Multi-layer spiral blade self-drilling-type soil anchor rod and constructing method thereof |
| CN104551293A (en) * | 2014-06-20 | 2015-04-29 | 中太建设集团股份有限公司 | Tin enameling device used for tin soldering of copper lead wire connector |
| CN109098688A (en) * | 2018-10-15 | 2018-12-28 | 山东交通学院 | Soft aggregate anti-blocking construction technology safely in a kind of down-hole extra-deep hole drilling |
-
2008
- 2008-03-11 CN CNU2008200193911U patent/CN201183950Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562107A (en) * | 2010-11-11 | 2012-07-11 | 喜利得股份公司 | Anchor component, in particular for mining and tunnel construction |
| CN102562107B (en) * | 2010-11-11 | 2016-08-03 | 喜利得股份公司 | Especially for mining engineering and the anchor component of Tunnel Engineering |
| CN104551293A (en) * | 2014-06-20 | 2015-04-29 | 中太建设集团股份有限公司 | Tin enameling device used for tin soldering of copper lead wire connector |
| CN104141305A (en) * | 2014-07-30 | 2014-11-12 | 武汉武大巨成结构股份有限公司 | Multi-layer spiral blade self-drilling-type soil anchor rod and constructing method thereof |
| CN104141305B (en) * | 2014-07-30 | 2016-08-24 | 武大巨成结构股份有限公司 | A kind of multi-layer helical blade self-drilling type soil anchor bolt and construction method thereof |
| CN109098688A (en) * | 2018-10-15 | 2018-12-28 | 山东交通学院 | Soft aggregate anti-blocking construction technology safely in a kind of down-hole extra-deep hole drilling |
| CN109098688B (en) * | 2018-10-15 | 2020-07-07 | 山东交通学院 | Safe anti-blocking construction process for soft aggregate in underground ultra-deep drill hole of mine |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090121 Termination date: 20160311 |