CN2934354Y - Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake - Google Patents
Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake Download PDFInfo
- Publication number
- CN2934354Y CN2934354Y CN 200620021286 CN200620021286U CN2934354Y CN 2934354 Y CN2934354 Y CN 2934354Y CN 200620021286 CN200620021286 CN 200620021286 CN 200620021286 U CN200620021286 U CN 200620021286U CN 2934354 Y CN2934354 Y CN 2934354Y
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- pile
- concrete
- gravel
- pipe
- concrete pouring
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Abstract
The utility model relates to a construction device for the rear concrete and gravel pouring after the end of the gravel feeding pile of the center pump of the center drilling tool. The existing devices has the problem that the concrete pouring pipe device is too complicated and big, the reliability of the concrete pouring pipe device is bad, the concrete pouring pipe is not easy to detach from the pulse extract pipe, the pulse extraction device vibrate in the bore with gravel and is easy to sink the gravel down to the bottom of the pile to make the pulse extract pipe and the concrete pouring pipe impossible to reach the bottom of the pile, the outside of the concrete pouring pipe is wrapped by the gravel even when the few crush stones at the bottom of the concrete pouring pipe is provided and no matter if the concrete pouring pipe reaches the bottom of the pile, and the concrete pouring pipe is prone to jam to make the concrete pouring at the bottom of the hole impossible when the strength of the gravel is more than 30 percent. So a construction device for the rear concrete and gravel pouring after the end of the gravel feeding pile of the center pump of the center drilling tool. The device is suitable for the construction of the base pile.
Description
Technical field:
The utility model relates to a kind of pile foundation construction device, is specifically related to the construction equipment of a kind of drilling tool center pumping concrete post grouting under pile concrete filling pile.
Background technology:
The stake side of extensive use at present, the pile bottom post grouting concrete filling pile is all realized under dried operation pore-forming or mud off pore-forming technique, though it has solved end load and the side frictional resistance problem that improves stake.But once finish promptly " bore and irritate unification " owing to can not realize boring and concrete pouring in the work progress.So its complex process, speed of application is slow, contaminated environment, quality control difficulty.And the various spiral drills center pumping concrete filling pile of using in recent years, as CFG stake, superfluidity stake etc., because its technology particularity, its stake end and side frictional resistance are all lower.In order to solve the problems referred to above of spiral drill center pumping concrete filling pile, many knowledgeable people have dropped into a large amount of financial resources energy, research and develop, as penetrate slurry expanded bore pile, rotary-jetting bottom-expanding pile, expand end agitation pile etc., all because its device structure is too complicated, technology is restive, so use lessly, and existing some device exists 1, the slip casting tube apparatus is too complicated huge down, following slip casting pipe unit poor reliability, Grouting Pipe is difficult for breaking away from the shake tube pulling; 2, the shake pulling device vibrates in the hole of concrete is arranged, and very easily concrete is caused from rare, and gravel sinks to the stake bottom, shakes tube pulling like this and can not reach the stake bottom, so Grouting Pipe can not arrive the stake bottom; Though 3, a small amount of rubble is arranged at the Grouting Pipe bottom, but at the bottom of no matter whether Grouting Pipe arrives, the Grouting Pipe outside is to be wrapped up by concrete, when reaching 30%～100%, easily cause concrete strength Grouting Pipe to block, hole-bottom slurry-injection such as can not realize at shortcoming, also exist in the prior art in addition a kind of to behind the pump-injecting concrete pile of auger stem center to a kind of remedial measure at the bottom of the stake, it is lowered to the Grouting Pipe degree of depth certain limit, slip casting is slip casting immediately when pile, so be not grouting behind shaft or drift lining worker method, its slip casting effect does not far reach the grouting behind shaft or drift lining method.
Summary of the invention:
The purpose of this utility model provides a kind of drilling tool center pumping concrete filling pile that can reach and has the construction equipment of the drilling tool center pumping concrete post grouting under pile concrete filling pile of pouring mortar pile afterwards concurrently.
Above-mentioned purpose realizes by following technical scheme:
The construction equipment of a kind of drilling tool center pumping concrete post grouting under pile concrete filling pile, its composition comprises: drill bit, Grouting Pipe has the grout outlet that links to each other with described Grouting Pipe on the described drill bit.
The construction equipment of above-mentioned drilling tool center pumping concrete post grouting under pile concrete filling pile, described Grouting Pipe is full helical blade or part helical blade.
The construction equipment of above-mentioned drilling tool center pumping concrete post grouting under pile concrete filling pile, described Grouting Pipe is by forming with the steel pipe of diameter or different-diameter.
The beneficial effects of the utility model:
1. the utility model product, but the steel pipe merogenesis be lowered in the hole, the thickness of steel pipe diameter can reduce, cost reduces equally, in the following original soil layer, can guarantee that grouting port is not blocked by concrete at the bottom of Grouting Pipe is lowered to, Grouting Pipe is unimpeded, because Grouting Pipe is provided with drill bit, can select helical blade as required for use again, following Grouting Pipe speed is fast, simple to operate, it is fast to pierce Grouting Pipe speed with rig, and the degree of depth is reliable.
2. the utility model product by rig or manually drive the rotation of pile end grouting pipe and pierce, in the following original soil layer, can hold primitive soil to reinforce to stake at the bottom of reaching always.
3. use the utility model product, can realize " bore and irritate unification ", have the characteristics that back pouring mortar pile bearing capacity increases substantially again, the inventive method construction equipment mature and reliable and simple.
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
The specific embodiment:
Embodiment 1:
The construction equipment of a kind of drilling tool center pumping concrete post grouting under pile concrete filling pile, its composition comprises: drill bit 4, Grouting Pipe 1 has the grout outlet 3 that links to each other with described Grouting Pipe 1 on the described drill bit 4, when pumping concrete material to specified altitude, drilling tool is proposed; With the effective rig of pile end grouting or manually pierce injected the concrete material the stake hole below original soil layer, go into slurries by the grout outlet of Grouting Pipe to the stake rising pouring length of time of concrete as required.
Embodiment 2:
The construction equipment of embodiment 1 described drilling tool center pumping concrete post grouting under pile concrete filling pile, described Grouting Pipe is full helical blade or part helical blade, selects the form of the helical blade 2 on the Grouting Pipe as required.
Embodiment 3:
The construction equipment of embodiment 1 described drilling tool center pumping concrete post grouting under pile concrete filling pile, described Grouting Pipe 1 is by forming with the steel pipe of diameter or different-diameter.
Claims (3)
1. the construction equipment of a drilling tool center pumping concrete post grouting under pile concrete filling pile, its composition comprises: drill bit, Grouting Pipe is characterized in that: have the grout outlet that links to each other with described Grouting Pipe on the described drill bit.
2. the construction equipment of drilling tool according to claim 1 center pumping concrete post grouting under pile concrete filling pile, it is characterized in that: described Grouting Pipe is full helical blade or part helical blade.
3. the construction equipment of drilling tool according to claim 1 and 2 center pumping concrete post grouting under pile concrete filling pile, it is characterized in that: described Grouting Pipe is by forming with the steel pipe of diameter or different-diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021286 CN2934354Y (en) | 2006-07-25 | 2006-07-25 | Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021286 CN2934354Y (en) | 2006-07-25 | 2006-07-25 | Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934354Y true CN2934354Y (en) | 2007-08-15 |
Family
ID=38351043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021286 Expired - Fee Related CN2934354Y (en) | 2006-07-25 | 2006-07-25 | Construction device for drill center pumping concrete to stake end and mortar intrusion for concrete perfusion stake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934354Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120714A (en) * | 2016-08-22 | 2016-11-16 | 上海岩土工程勘察设计研究院有限公司 | A kind of device improving hollow pile bearing capacity and using method thereof |
| CN106759290A (en) * | 2017-03-19 | 2017-05-31 | 马鞍山宏泰建材股份有限公司 | A kind of grouting behind shaft or drift lining pile foundation and its grouting method |
-
2006
- 2006-07-25 CN CN 200620021286 patent/CN2934354Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120714A (en) * | 2016-08-22 | 2016-11-16 | 上海岩土工程勘察设计研究院有限公司 | A kind of device improving hollow pile bearing capacity and using method thereof |
| CN106759290A (en) * | 2017-03-19 | 2017-05-31 | 马鞍山宏泰建材股份有限公司 | A kind of grouting behind shaft or drift lining pile foundation and its grouting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20100725 |