CN103866762A - Pile body longitudinal multipoint grouting device - Google Patents
Pile body longitudinal multipoint grouting device Download PDFInfo
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- CN103866762A CN103866762A CN201410126365.9A CN201410126365A CN103866762A CN 103866762 A CN103866762 A CN 103866762A CN 201410126365 A CN201410126365 A CN 201410126365A CN 103866762 A CN103866762 A CN 103866762A
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Abstract
The invention belongs to grouting devices behind cast-in-place concrete piles, and discloses a pile body longitudinal multipoint grouting device. The device can be widely applied to pile foundations adopted by building pressure bearing or extraction resisting. The device is provided with a grouting guide pipe extending from the ground to a pile end, guide pipe side wall grouting holes and a controllable grouting core pipe which can move vertically and be inserted into the guide pipe. According to the device, grouting is achieved on pile side grouting devices with different elevations at the pile end and the guide pipe, pile body grouting is more uniform, the effect is more reliable, and building quality can be guaranteed conveniently.
Description
Technical field
The on-site concrete castinplace pile post-grouting device that the invention belongs to 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 make " the mud skin " of stake week weakness become the cement-soil higher for intensity, 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, realize whole pile body slip casting by the multiple annular slip casting sections of different level, in the time that 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 research and development one longitudinally to put along the intensive slip casting note of the long multiple spot of stake, by same vertical duct realization stake end and efficient, the controlled slip casting of stake side multiple spot.
Summary of the invention
Technical problem to be solved by this invention has been to provide a kind of longitudinal multiple spot grouting device, this device setting passes to the grouting pipe of stake end from ground, can in conduit, insert controlled slip casting core pipe moving up and down, realize stake end and stake side with the slip casting of absolute altitude slurry casting machine.
For solving the problems of the technologies described above, technical scheme of the present invention is:
The longitudinal multiple spot grouting device of a kind of castinplace pile pile body, this device is 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.Longitudinally at interval of certain distance, injected hole is being set along stake is long, 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, according to the size in stake footpath, can be symmetrical arranged many grouting pipe along stake week 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 present invention, 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.The high about 200mm above ground level of pipe top mark is so that follow-up slip casting, and pipe end absolute altitude stretches into the following 200～500mm of stake end absolute altitude, so that realize 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 present invention, should guarantee the strict location of embedded steel tube and verticality, sealing.Joint between every joint steel pipe should strictly seal, conventionally can adopt steel wire by firm to built-in pipe and reinforcing cage colligation every 1 ~ 2m 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.
Based on above-mentioned technical scheme, 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, the inflatable colloid that described Inflation plug is connected by upper and lower rigid end sheet and with described rigid end sheet forms, described upper and lower Inflation plug was communicated with by communicating pipe, described air pipe interface is communicated with described Inflation plug, realize inflation connection, described in send slurry interface tube 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.
At the bottom of above-mentioned caliber to pre-buried grouting pipe, wall thickness, pipe, the concrete size of the spacing distance of absolute altitude and steel wire lashing is described, and it is only a kind of signal that the arranging of injected hole waited, can be definite, not as a limitation of the invention separately according to the actual conditions of engineering.
Due to the use of 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 invention will be further described.
Fig. 1 is grouting pipe longitudinal plan of the present invention.
Fig. 2 is grouting pipe drawing in side sectional elevation of the present invention.
Fig. 3 is injected hole detail drawing of the present invention.
Fig. 4 is slip casting core pipe detail drawing of the present invention.
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 that the grout outlet 9 of centre and the Inflation plug 10 at two ends form, the inflatable colloid 11 that Inflation plug is connected by upper and lower rigid end sheet 12 and with described rigid end sheet 12 forms, 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.When 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 embodiment of the present invention being provided is introduced in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, 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 limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
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 exceedes 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, when 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 made up of the Inflation plug (10) at grout outlet (9) and two ends, the inflatable colloid (11) that described Inflation plug is connected by upper and lower rigid end sheet (12) and with described rigid end sheet (12) forms, 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 |
|---|---|---|---|
| CN201410126365.9A CN103866762A (en) | 2014-04-01 | 2014-04-01 | Pile body longitudinal multipoint grouting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410126365.9A CN103866762A (en) | 2014-04-01 | 2014-04-01 | Pile body longitudinal multipoint grouting device |
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| CN103866762A true CN103866762A (en) | 2014-06-18 |
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| CN201410126365.9A Pending CN103866762A (en) | 2014-04-01 | 2014-04-01 | Pile body longitudinal multipoint grouting device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442593A (en) * | 2014-09-01 | 2016-03-30 | 辽宁省交通规划设计院 | Post-grouting reinforcement construction equipment and method for U-shaped pipe inside coring hole |
| CN105804072A (en) * | 2016-05-06 | 2016-07-27 | 同济大学 | Slip casting pipe device, Y-shaped abnormal-shape pile with device in prefabricated manner and slip casting method of device |
| CN105926589A (en) * | 2016-06-07 | 2016-09-07 | 中交第二航务工程局有限公司 | Steel pipe pile applicable to coral reef geology and grouting method of steel pipe pile |
| CN108487250A (en) * | 2018-06-08 | 2018-09-04 | 浙江鸿晨建设有限公司 | Uplift pile stake side post-grouting device and construction method |
| CN108755658A (en) * | 2018-06-07 | 2018-11-06 | 中国十七冶集团有限公司 | A kind of tool and implementation reducing diaphram wall sedimentation |
| CN109487810A (en) * | 2018-12-06 | 2019-03-19 | 中信重工机械股份有限公司 | A kind of pipeline arrangement being suitable for different height lubricant injected hole after open caisson wall |
| CN109752247A (en) * | 2019-01-22 | 2019-05-14 | 北京交通大学 | A kind of grouting device and grouting method for muddy water diametral compression test exhaust |
| CN111424669A (en) * | 2020-03-27 | 2020-07-17 | 上海长凯岩土工程有限公司 | Pile end grouting process and device of quick and recyclable grouting device |
| CN111535302A (en) * | 2020-05-08 | 2020-08-14 | 东南大学 | Cast-in-place pile distributed pile side-rear grouting device, hydraulic grouting assembly and construction method |
| CN114319331A (en) * | 2022-03-08 | 2022-04-12 | 中国长江三峡集团有限公司 | Construction method of underwater pipe pile type foundation and underwater pipe pile type foundation |
| CN114482057A (en) * | 2021-12-27 | 2022-05-13 | 佛山科学技术学院 | Control device and method for pile side grouting reinforcement of pipe pile foundation |
| WO2023237133A1 (en) * | 2023-06-29 | 2023-12-14 | 中铁四局集团有限公司 | Distributed pressure-grouting device and method for bridge approach pile foundation |
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| US6536991B1 (en) * | 2000-10-11 | 2003-03-25 | Madcon Corporation | Method of structurally reinforcing an assembly of tubular members in a marine environment |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442593A (en) * | 2014-09-01 | 2016-03-30 | 辽宁省交通规划设计院 | Post-grouting reinforcement construction equipment and method for U-shaped pipe inside coring hole |
| CN105804072A (en) * | 2016-05-06 | 2016-07-27 | 同济大学 | Slip casting pipe device, Y-shaped abnormal-shape pile with device in prefabricated manner and slip casting method of device |
| CN105926589A (en) * | 2016-06-07 | 2016-09-07 | 中交第二航务工程局有限公司 | Steel pipe pile applicable to coral reef geology and grouting method of steel pipe pile |
| CN105926589B (en) * | 2016-06-07 | 2017-12-05 | 中交第二航务工程局有限公司 | It is adapted to the steel-pipe pile and its grouting method of coral reef geology |
| CN108755658A (en) * | 2018-06-07 | 2018-11-06 | 中国十七冶集团有限公司 | A kind of tool and implementation reducing diaphram wall sedimentation |
| CN108487250A (en) * | 2018-06-08 | 2018-09-04 | 浙江鸿晨建设有限公司 | Uplift pile stake side post-grouting device and construction method |
| CN109487810A (en) * | 2018-12-06 | 2019-03-19 | 中信重工机械股份有限公司 | A kind of pipeline arrangement being suitable for different height lubricant injected hole after open caisson wall |
| CN109487810B (en) * | 2018-12-06 | 2023-11-07 | 中信重工机械股份有限公司 | Pipeline arrangement suitable for lubricant grouting holes with different heights behind open caisson wall |
| CN109752247A (en) * | 2019-01-22 | 2019-05-14 | 北京交通大学 | A kind of grouting device and grouting method for muddy water diametral compression test exhaust |
| CN109752247B (en) * | 2019-01-22 | 2024-03-01 | 北京交通大学 | Grouting device and grouting method for exhausting in muddy water splitting test |
| CN111424669A (en) * | 2020-03-27 | 2020-07-17 | 上海长凯岩土工程有限公司 | Pile end grouting process and device of quick and recyclable grouting device |
| CN111535302A (en) * | 2020-05-08 | 2020-08-14 | 东南大学 | Cast-in-place pile distributed pile side-rear grouting device, hydraulic grouting assembly and construction method |
| CN114482057A (en) * | 2021-12-27 | 2022-05-13 | 佛山科学技术学院 | Control device and method for pile side grouting reinforcement of pipe pile foundation |
| CN114319331A (en) * | 2022-03-08 | 2022-04-12 | 中国长江三峡集团有限公司 | Construction method of underwater pipe pile type foundation and underwater pipe pile type foundation |
| WO2023237133A1 (en) * | 2023-06-29 | 2023-12-14 | 中铁四局集团有限公司 | Distributed pressure-grouting device and method for bridge approach pile foundation |
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Application publication date: 20140618 |