CN203270584U - One-way intercepting grouting head for grouting - Google Patents
One-way intercepting grouting head for grouting Download PDFInfo
- Publication number
- CN203270584U CN203270584U CN 201320360026 CN201320360026U CN203270584U CN 203270584 U CN203270584 U CN 203270584U CN 201320360026 CN201320360026 CN 201320360026 CN 201320360026 U CN201320360026 U CN 201320360026U CN 203270584 U CN203270584 U CN 203270584U
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- grouting
- pile
- tube
- grouting tube
- dams
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Abstract
The utility model discloses a one-way intercepting grouting head for grouting. The grouting head comprises a grouting tube, a rubber loop and a corrugated conduit, wherein the upper end of the grouting tube is provided with a thread which is connected with the grouting tube through a screw thread joint, the lower end of the grouting tube is blocked through an end cap with a screw thread, the bottom of the end cap is polished to be conical through a machine tool, the rubber loop is divided into three sections and is sleeved at a grouting hole of the grouting tube, the corrugated conduit is sleeved at the outermost layer of the grouting tube, and the two ends of the corrugated conduit are wrapped by adhesive plasters to be fixed on the grouting tube. The grouting head is connected with the grouting tube, then is fixed on the inner side of a cast-in-place pile reinforcing cage and is pre-buried at the bottom of a cast-in-place pile. After concrete of the cast-in-place pile is poured and reaches strength and age as required, a grout material is injected to the bottom of the pile through grout pressing equipment and then is subjected to permeation, filling, replacement, splitting, densification and concretion, so that the physical mechanics of soil bodies at the pile end and the adjacent pile side are changed, the bearing capacity of the pile end is improved, and the settlement of the pile is alleviated.
Description
Technical field
The utility model relates to a kind of unidirectional casting head that dams of grouting.
Background technology
the mud off Punching Borehole Cast-in-place Concrete Pile is as a kind of pile foundation form of routine, used more and more widely in construction work, but Punching Borehole Cast-in-place Concrete Pile punching facility in formation of pile can produce the soil body and stir, cutting, the effects such as extruding, bearing stratum is produced disturbance, cause sediment of the hole bottom, be particularly that in layer of gravel, generally just come up fine grained clearly in the clear hole of Punching Borehole Cast-in-place Concrete Pile direct circulation at bearing stratum, and big particle is still stayed stake end and is caused the space to increase, mud sediment causes end resistance to reduce in the space, the existence of sediment of the hole bottom layer, make the stake end be equivalent to be bearing on soft layer, reduced bearing capacity of pile tip, and the settling amount of stake is increased, thereby make the perfusion bearing capacity of pile can not get normal performance.
Summary of the invention
The purpose of this utility model is to provide a kind of unidirectional casting head that dams of grouting, and it can prevent that concrete and impurity from entering Grouting Pipe from the outside, satisfies castinplace pile grouting behind shaft or drift lining construction process requirement.
The utility model is by achieving the above object by the following technical solutions: a kind of unidirectional casting head that dams of grouting, comprise grouting tube, rubbery loop and corrugated bushing, tooth is opened in described grouting tube upper end, be connected with Grouting Pipe by threaded joint, the plug shutoff of lower end with screw thread, the plug bottom is polished into coniform with lathe, rubbery loop is divided into three sections, be enclosed within the injected hole position of grouting tube, corrugated bushing is enclosed within the grouting tube outermost layer, and two ends are fastened on grouting tube with adhesive plaster.
Described grouting tube one end is opened tooth, other end shutoff, and interlude has 24 injected holes, and the aperture is 8mm, and pitch of holes is 30～35mm.
Described rubbery loop is than the little 20～30mm of grouting tube external diameter.
Described corrugated bushing internal diameter is than the large 10～15mm of grouting tube external diameter, and length is 250～280mm.
Outstanding advantages of the present utility model is:
after adopting the utility model and Grouting Pipe being connected, be fixed on the filling pile cage of reinforcement inboard, at the bottom of being embedded in grout pile, build complete and reach intensity after the length of time until cast-in-place pile concrete, at the bottom of by mud jacking equipment, slurry material being expelled to, slurries are through infiltration, fill, displacement, splitting, densification and fixed, changed the physical mechanics property of stake end and near the stake side soil body thereof, improve bearing capacity of pile tip, reduce the settling amount of stake, this utility model possesses the good unidirectional function of damming, can prevent that concrete and impurity from entering Grouting Pipe from the outside, satisfy castinplace pile grouting behind shaft or drift lining construction process requirement.
Description of drawings
Fig. 1 is the structural representation of the unidirectional casting head that dams of grouting described in the utility model.
Fig. 2 is the grouting tube structural representation of the unidirectional casting head that dams of grouting described in the utility model.
Fig. 3 is the rubber ring sleeve structural representation of the unidirectional casting head that dams of grouting described in the utility model.
Fig. 4 is the corrugated bushing structural representation of the unidirectional casting head that dams of grouting described in the utility model.
Fig. 5 is the use state plane schematic diagram of the unidirectional casting head that dams of grouting described in the utility model.
Fig. 6 is the use state elevational schematic view of the unidirectional casting head that dams of grouting described in the utility model.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described further.
To shown in Figure 5, the unidirectional casting head that dams of grouting described in the utility model comprises grouting tube 1, rubber ring sleeve 2 and corrugated bushing 3 as Fig. 1.Its structure and annexation are: tooth 4 is opened in described grouting tube 1 upper end; be connected with Grouting Pipe by threaded joint; plug 7 shutoff of lower end with screw thread; plug 7 bottoms are polished into coniform with lathe; rubbery loop 2 is divided into three sections, is enclosed within the injected hole position of grouting tube 1, and corrugated bushing 3 is enclosed within grouting tube 1 outermost layer; two ends are fastened on grouting tube 1 with adhesive plaster, play the effect of protection rubber ring sleeve 2.
Described grouting tube 1 is for adopting coating steel pipe to make, and length is 300～350mm, and internal diameter is Φ 25 or Φ 30mm, wall thickness is 3mm, and an end is opened tooth, other end shutoff, the grouting tube interlude is drilled with 24 injected holes 6 along surrounding, and the aperture is 8mm, and between the hole, spacing is 30～35mm.
Described rubbery loop 2 is than the grouting tube 1 little 20～30mm of external diameter.Rubbery loop 2 covers are pressed in injected hole 6 positions of grouting tube 1, play unidirectional crown_interception.
Described corrugated bushing 3 internal diameters are than the grouting tube 1 large 10～15mm of external diameter, and length is 250～280mm.
The using method of the unidirectional casting head that dams of grouting described in the utility model comprises the steps:
A) by threaded joint, casting head 11 is connected on Grouting Pipe 9;
B) Grouting Pipe 9 symmetries are laid between the inboard two main muscle 8 of reinforcing cage, Grouting Pipe 9 lower ends are casting head 11, stretch out 100～150mm at the bottom of the reinforcing cage stake, and stake top a 400～500mm is stretched out in Grouting Pipe 9 upper ends, and the spreading of Grouting Pipe 9 adopts screwed connection.Grouting Pipe 9 with evenly be fixed on the spiral stirrup and reinforcing rib 10 of reinforcing cage by colligation or welding manner, fixed point spacing ≯ 2m;
C) slowly put into priming concrete pile hole 12 with the crane reinforcing cage that colligation is good;
D) carry out hole clearly at the bottom of 12 of castinplace piles, reduce a stake hole sediment;
E) after clear hole meets the demands, carry out concreting;
F) after concrete strength reached setting, by the designing requirement prepared slarry, and flexible pipe was connected grouting equipment with Grouting Pipe;
G) start the slush pump machine, pressure in accordance with regulations carries out slip casting;
H) when satisfying termination slip casting condition, finish slip casting, remove the slip casting connecting hose, Cementer is completed.
Claims (4)
1. the unidirectional casting head that dams of a grouting, it is characterized in that, comprise grouting tube, rubbery loop and corrugated bushing, tooth is opened in described grouting tube upper end, is connected with Grouting Pipe by threaded joint, the plug shutoff of lower end with screw thread, the plug bottom is polished into coniform with lathe, rubbery loop is divided into three sections, is enclosed within the injected hole position of grouting tube, corrugated bushing is enclosed within the grouting tube outermost layer, and two ends are fastened on grouting tube with adhesive plaster.
2. the unidirectional casting head that dams of grouting according to claim 1, is characterized in that, described grouting tube one end is opened tooth, other end shutoff, and interlude has 24 injected holes, and the aperture is 8mm, and pitch of holes is 30～35mm.
3. the unidirectional casting head that dams of grouting according to claim 1, is characterized in that, described rubbery loop is than the little 20～30mm of grouting tube external diameter.
4. the unidirectional casting head that dams of grouting according to claim 1, is characterized in that, described corrugated bushing internal diameter is than the large 10～15mm of grouting tube external diameter, and length is 250～280mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320360026 CN203270584U (en) | 2013-06-21 | 2013-06-21 | One-way intercepting grouting head for grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320360026 CN203270584U (en) | 2013-06-21 | 2013-06-21 | One-way intercepting grouting head for grouting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203270584U true CN203270584U (en) | 2013-11-06 |
Family
ID=49501025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320360026 Expired - Fee Related CN203270584U (en) | 2013-06-21 | 2013-06-21 | One-way intercepting grouting head for grouting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203270584U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196030A (en) * | 2014-09-17 | 2014-12-10 | 中国水利水电第七工程局有限公司 | Portable intelligent high-pressure grouting system and grouting method of metamorphic concretes |
| CN104831732A (en) * | 2015-04-07 | 2015-08-12 | 中铁建设集团有限公司 | Pile tip grouting valve tube and manufacturing method thereof |
| CN111321739A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Pile bottom grouting device and application method thereof |
| CN111321766A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Bored concrete pile end sediment detection device of loosing core |
-
2013
- 2013-06-21 CN CN 201320360026 patent/CN203270584U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104196030A (en) * | 2014-09-17 | 2014-12-10 | 中国水利水电第七工程局有限公司 | Portable intelligent high-pressure grouting system and grouting method of metamorphic concretes |
| CN104196030B (en) * | 2014-09-17 | 2016-01-13 | 中国水利水电第七工程局有限公司 | Portable abnormal concrete intelligent high-pressure filling system and grouting method |
| CN104831732A (en) * | 2015-04-07 | 2015-08-12 | 中铁建设集团有限公司 | Pile tip grouting valve tube and manufacturing method thereof |
| CN111321739A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Pile bottom grouting device and application method thereof |
| CN111321766A (en) * | 2020-03-27 | 2020-06-23 | 云南建投第一勘察设计有限公司 | Bored concrete pile end sediment detection device of loosing core |
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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: 20131106 Termination date: 20210621 |