CN203878568U - Longitudinal multi-point pile body grouting device - Google Patents
Longitudinal multi-point pile body grouting device Download PDFInfo
- Publication number
- CN203878568U CN203878568U CN201420152302.6U CN201420152302U CN203878568U CN 203878568 U CN203878568 U CN 203878568U CN 201420152302 U CN201420152302 U CN 201420152302U CN 203878568 U CN203878568 U CN 203878568U
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- grouting
- pipe
- pile
- slip casting
- pile body
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Abstract
The utility model belongs to grouting devices working after concrete is grouted into a pile on site and particularly relates to a longitudinal multi-point pile body grouting device which can be widely applied to pile foundations utilized by buildings to perform pressure bearing and resist uplift. The longitudinal multi-point pile body grouting device comprises a grouting guide pipe through from the ground to a pile end, grouting holes in the lateral wall of the guide pipe and a controllable grouting core pipe capable of being inserted into the guide pipe and moving vertically. By means of the longitudinal multi-point pile body grouting device, grouting can be performed on the pile end and pile side grouting devices on the guide pipe, with different altitudes, grouting uniformity of the pile body is achieved, grouting effect is more reliable, and building quality is ensured.
Description
Technical field
The utility model belongs to the on-site concrete castinplace pile post-grouting device in building engineering field, can be widely used in the pile foundation that building pressure-bearing or resistance to plucking adopt.
Background technology
From the eighties in last century, bored pile starts to be widely used in highrise building and urban construction.In drill-pouring pile forming technology, extensively adopt mud off technique, this technique often forms pile body mud skin and sediment of the hole bottom, reduces end resistance and side resistance, make bearing capacity of borehole bored concrete pile lower than the preformed pile under the same terms, and the discreteness of bearing capacity is very large.Particularly, for uplift pile, because its bearing capacity is mainly provided by pile side friction, the weakening of side resistance will reduce bearing capacity greatly.Stake end and stake rear flank slip casting, by pre-buried grouting device in pile body placing of reinforcement cage, are built, are condensed after pile until pile concrete, carry out slip casing by pressure.Reinforce the gap of sediment of the hole bottom and pile body mud skin, filling pile body and pile peripheral earth and penetrate into pile soil horizon certain width scope.Slurries become as the higher cement-soil of intensity " the mud skin " of stake week weakness, solidifying rear stake side mud skin is reinforced, and form stronger cementing with pile concrete, and improve larger the closer to stake side surface soil strength, this just in time with the stake side soil body in shear stress distribution regularities suitable, thereby contribute to improve pile side friction.Pile body slip casting has been approved by engineering circles and has been adopted as improvement stake soil and connect true interface, improves the effective means of bearing capacity.Current, pile end grouting need divide and be arranged with a stake side grouting device, and the slip casting of stake side mainly adopts the mode that vertical duct and hoop grouting tube are set along reinforcing cage, by a plurality of annular slip casting sections of different level, realize whole pile body slip casting, when stake is long, need along the hoop slip casting section of the long setting of stake morely, and each section need arrange a vertical duct and a hoop Grouting Pipe, and pre-buried engineering quantity and work difficulty are larger.In addition, the spacing between each slip casting section generally, in 9m left and right, causes away from controlling of endless tube position grouting quality poor.Therefore, need to research and develop the intensive slip casting note of the long multiple spot of a kind of longitudinal edge stake and put, by same vertical duct realization stake, hold and efficient, the controlled slip casting of stake side multiple spot.
Utility model content
Technical problem to be solved in the utility model has been to provide a kind of longitudinal multiple spot grouting device, the setting of this device passes to the grouting pipe of stake end from ground, can in conduit, insert controlled slip casting core pipe moving up and down, realize the slip casting with absolute altitude slurry casting machine to stake end and stake side.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The longitudinal multiple spot grouting device of castinplace pile pile body, this installs by pre-buried grouting pipe, duct wall injected hole, and slip casting core pipe forms.Built-in pipe grouting pipe coaxial sleeve is attached to the reinforcing cage inner side of castinplace pile, the internal diameter of described built-in pipe is not less than the diameter of slip casting core pipe, pre-buried grouting pipe top mark is high high with described reinforcing cage top mark, and end absolute altitude stretches into below castinplace pile end absolute altitude, and the bottom of conduit described in shutoff.Along stake is long, longitudinally at interval of certain distance, injected hole is being set, injected hole is provided with check valve apparatus from inside to outside.Slip casting core pipe can different level move in grouting pipe, and realizes the independent slip casting to default injected hole.Implement can be symmetrical arranged many grouting pipe along stake week according to the size in stake footpath in engineering application, to strengthen uniformity and the quality controllability of pile body slip casting.Many grouting pipe are arranged along the stake of castinplace pile in week symmetrically.
In the utility model, pre-buried grouting pipe can be steel pipe, and internal diameter is not less than the diameter of slip casting core pipe, and pipe diameter is greater than 60mm conventionally, and thickness of steel pipe meets the requirement of strength and stiffness, is conventionally greater than 3mm.Manage the high about 200mm above ground level of top mark so that follow-up slip casting is managed end absolute altitude and stretched into a 200～500mm below stake end absolute altitude, so that realizes pile end grouting.Steel pipe coaxial sleeve is attached on filling pile cage of reinforcement, and after pouring pile hole, steel pipe and reinforcing cage together sink to putting in place, and then build pile concrete.Shutoff is carried out in the bottom of reply built-in pipe, and while preventing that pile body from building, concrete enters generation plugging in built-in pipe.In the utility model, should guarantee the strict location of embedded steel tube and verticality, sealing.Joint between every joint steel pipe should strictly seal, conventionally can every 1 ~ 2m, adopt steel wire that built-in pipe and reinforcing cage colligation is firm along stake is long, enter in a hole process transferring reinforcing cage and built-in pipe, water filling in built-in pipe, the sealing of observation built-in pipe, guarantees can not enter in conduit in pile concrete casting process.
In grouting pipe, can longitudinally at interval of 1～2m, injected hole be set along stake is long, to realize the slip casting to pile body, the longitudinal pitch of injected hole also can be adjusted according to design or engineering actual conditions.Injected hole is symmetrical arranged along pipe in week, can be quincuncial arrangement.Injected hole should possess one way valve character, both can realize slip casting from inside to outside, can prevent that again concrete or the slurries of outside from entering in hole.The outer mode that can adopt parcel rubber peel of injected hole, realizes the protection to aperture.
Technical scheme based on above-mentioned, can realize the independent slip casting between grouting pipe and injected hole by following measure: slip casting core Guan Shangyou send slurry interface tube and air pipe interface, the core component of described slip casting core pipe is middle grout outlet and the Inflation plug composition at two ends, described Inflation plug is comprised of upper and lower rigid end sheet and the inflatable colloid that is connected with described rigid end sheet, described upper and lower Inflation plug was communicated with by communicating pipe, described air pipe interface is communicated with described Inflation plug, realize the connection of inflation, described in send slurry interface tube to be communicated with described grout outlet.
When by slip casting core Guan Fangzhi slip casting section position, by air pipe, Inflation plug is inflated, to realize the position limiting sealed up and down to output slurries, and then the logical slurry pipe that send carries out slip casing by pressure.Certainly, also can take other prior art measure to realize the independent slip casting between grouting pipe and injected hole.
Above-mentioned the concrete size of the spacing distance of absolute altitude and steel wire lashing at the bottom of the caliber of pre-buried grouting pipe, wall thickness, pipe is described, it is only a kind of signal that the arranging of injected hole waited, and can determine separately according to the actual conditions of engineering, and conduct is not to restriction of the present utility model.
Use due to said apparatus, can realize stake end and the slip casting of stake side from the bottom to top by a conduit, and can starch a spacing of side slip casting and be contracted to 1～2m by conventional 9m left and right, make that pile body slip casting is more even, effect is more reliable, just be conducive to the assurance of construction quality.
Accompanying drawing explanation
Below in conjunction with drawings and Examples and application construction method, the utility model will be further described.
Fig. 1 is grouting pipe longitudinal plan of the present utility model.
Fig. 2 is grouting pipe drawing in side sectional elevation of the present utility model.
Fig. 3 is injected hole detail drawing of the present utility model.
Fig. 4 is slip casting core pipe detail drawing of the present utility model.
The specific embodiment
As shown in Figure 1 and Figure 2, pre-buried grouting pipe 1 is a steel pipe, and coaxial sleeve is attached to reinforcing cage 3 inner sides of castinplace pile 2, and pipe diameter is not less than the diameter of slip casting core pipe, and pipe diameter is greater than 60mm conventionally.The high about 200mm of ground level that is same as of grouting pipe 1 top mark, pipe end absolute altitude is than the low 200～500mm of end absolute altitude of castinplace pile 2.Grouting pipe longitudinally arranges injected hole 4 at interval of 1～2m.
As shown in Figure 3, injected hole 4 is symmetrical arranged along pipe in week, can be quincuncial arrangement.The outer mode that can adopt parcel rubber peel 5 of injected hole, realizes the protection to aperture.
As shown in Figure 4, on slip casting core pipe 6, send slurry interface tube 7 and air pipe interface 8, the core component of slip casting core pipe 6 is middle grout outlet 9 and Inflation plug 10 compositions at two ends, Inflation plug is comprised of upper and lower rigid end sheet 12 and the inflatable colloid 11 that is connected with described rigid end sheet 12, upper and lower Inflation plug 10 was communicated with by communicating pipe 13, described air pipe interface 8 is communicated with described Inflation plug 10, as shown in air inlet arrow in Fig. 4, realize the connection of inflation, the described slurry interface tube 7 that send is communicated with described grout outlet 9, as entered slurry and pulp arrow in Fig. 4.During slip casting, slip casting core Guan Fangzhi is arranged to injected hole cross section place, first inflation forms and intercepts up and down plug, then carries out slip casting.Can, by order from low to high, realize the slip casting to the long scope of full stake.
The scheme above the utility model embodiment being provided is introduced in detail, and for one of ordinary skill in the art, the thought according to the utility model embodiment, all will change in specific embodiments and applications.In literary composition, all sizes are only a kind of signal and suggestion.In sum, this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection domain of the present utility model.
Claims (4)
1. the longitudinal multiple spot grouting device of pile body, it is characterized in that: vertical grouting pipe (1) coaxial sleeve pastes and be fixed on reinforcing cage (3) inner side of castinplace pile (2), the internal diameter of described grouting pipe (1) is not less than the diameter of slip casting core pipe (6), the high ground level that surpasses of described grouting pipe (1) top mark, end absolute altitude is lower than described castinplace pile (2) end absolute altitude, described grouting pipe (1) longitudinal separation arranges injected hole (4), described injected hole is symmetrical arranged along described grouting pipe (1) pipe in week, and the bottom of grouting pipe (1) described in shutoff, during slip casting, in described grouting pipe (1), insert described slip casting core pipe (6) and carry out respectively independent slip casting in different described injected hole positions, described injected hole (4) is provided with check valve apparatus from inside to outside.
2. the longitudinal multiple spot grouting device of a kind of pile body according to claim 1, it is characterized in that: on described slip casting core pipe (6), send slurry interface tube (7) and air pipe interface (8), the centre of described slip casting core pipe (6) is comprised of the Inflation plug (10) at grout outlet (9) and two ends, described Inflation plug is comprised of upper and lower rigid end sheet (12) and the inflatable colloid (11) that is connected with described rigid end sheet (12), described upper and lower Inflation plug (10) was communicated with by communicating pipe (13), described air pipe interface (8) is communicated with described Inflation plug (10), realize the connection of inflation, the described slurry interface tube (7) that send is communicated with described grout outlet (9).
3. the longitudinal multiple spot grouting device of a kind of pile body according to claim 1, is characterized in that: outer rubber peel (5) parcel that adopts of described injected hole (4).
4. the longitudinal multiple spot grouting device of a kind of pile body according to claim 1, is characterized in that: described grouting pipe (1) is many, and arranges symmetrically in week along the stake of described castinplace pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152302.6U CN203878568U (en) | 2014-04-01 | 2014-04-01 | Longitudinal multi-point pile body grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152302.6U CN203878568U (en) | 2014-04-01 | 2014-04-01 | Longitudinal multi-point pile body grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203878568U true CN203878568U (en) | 2014-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152302.6U Expired - Fee Related CN203878568U (en) | 2014-04-01 | 2014-04-01 | Longitudinal multi-point pile body grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203878568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866762A (en) * | 2014-04-01 | 2014-06-18 | 华东建筑设计研究院有限公司 | Pile body longitudinal multipoint grouting device |
| CN114855786A (en) * | 2022-05-24 | 2022-08-05 | 同圆设计集团股份有限公司 | Post-grouting prestressed pipe pile with reusable grouting pipes and construction method |
-
2014
- 2014-04-01 CN CN201420152302.6U patent/CN203878568U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866762A (en) * | 2014-04-01 | 2014-06-18 | 华东建筑设计研究院有限公司 | Pile body longitudinal multipoint grouting device |
| CN114855786A (en) * | 2022-05-24 | 2022-08-05 | 同圆设计集团股份有限公司 | Post-grouting prestressed pipe pile with reusable grouting pipes and construction method |
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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: 20141015 Termination date: 20170401 |