CN205742201U - A kind of grouting pipeline device and tapered shaped pile - Google Patents
A kind of grouting pipeline device and tapered shaped pile Download PDFInfo
- Publication number
- CN205742201U CN205742201U CN201620405989.9U CN201620405989U CN205742201U CN 205742201 U CN205742201 U CN 205742201U CN 201620405989 U CN201620405989 U CN 201620405989U CN 205742201 U CN205742201 U CN 205742201U
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- grouting
- pipe
- pile
- ring pipe
- tapered shaped
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Abstract
A kind of grouting pipeline device, including longitudinal Grouting Pipe, ring pipe, slurry casting machine, the first curved catheter and the second curved catheter, described longitudinal Grouting Pipe is axially set in inside ring pipe along pile body and sets grouting port on stake top, described ring pipe be perpendicular to pile body axially arranged and by the first curved catheter with longitudinal direction Grouting Pipe connect, described slurry casting machine along stake chow ring to being symmetricly set in a center side position, side is connected with described ring pipe by the second curved catheter, and opposite side connects with the pile body external world.The invention also discloses tapered shaped pile and the using method thereof of a kind of prefabricated described grouting pipeline device.This utility model is according to different engineering-environments, carry out slip casting section setting targetedly in conjunction with concrete operating mode, grouting program selects and parameter designing, there is safe and reliable, adaptability and the advantage such as motility is strong, economic and environment-friendly, energy effective compensation tapered shaped pile pile side friction, it is reduced to improve the secondary difficulty of construction that shaped pile bearing capacity is carried out, saves construction cost.
Description
Technical field
This utility model belongs to Geotechnical Engineering field, prefabricated grouting pipeline device in relating to tapered shaped pile.
Background technology
Bearing capacity and the deformation requirements of pile foundation are improved by the development of modern architecture industry day by day, and tapered shaped pile is by changing pile body
Longitudinal section shape, adds unflatness and the roughness of a Soil Interface, makes pile body bearing capacity significantly improve, real in engineering
Application in trampling is more and more extensive.
On the other hand, the impact of engineering or Other Engineering owing to wearing the facility such as existing building, bridge under tunnel, meeting in reality
Pile foundation and stake week region to existing building produce harmful effect.Underground Engineering Excavation meeting disturbance pile peripheral earth, changes soil around pile
Mechanics state, reduces pile foundation side friction and bearing capacity, and the sedimentation of aggravation existing pile foundation plinth and deformation, to existing building
Safety impacts.Owing to pile foundation mostly is underground engineering, quantities and engineering difficulty to the transformation of existing pile foundation plinth are bigger；And
Again squeezing into Grouting Pipe in pile peripheral earth and carry out grouting and reinforcing, its technology requires and controls difficulty greatly, high material consumption, so
The existing shaped pile that the pile foundation bearing capacity caused for pile peripheral earth disturbance declines is reinforced, become wear under underground engineering build,
The technical barrier that must solve during structures region.
The utility model of Application No. 201410396574.5 discloses a kind of multiple holes grouting pipe shaped pile and pile making method.This practicality
Novel by high-pressure slip-casting, the Seed harvest formed after making serosity hardening is collectively forming multiple holes grouting pipe shaped pile, energy with slip casting pipe pile
Reinforced soft soil ground is played remarkable result.But the method is mainly for Soft foundation treatment, not for improving existing abnormity
The problem of pile bearing capacity, it is impossible to play the effect compensating existing shaped pile pile side friction under pile peripheral earth disturbance premise.
The utility model of Patent No. 201020700179.9 discloses a kind of prestressing steel pipe concrete pipe pile.This pile-type is by changing
Enter the structure of stake or the layout of presstressed reinforcing steel to improve concrete tubular pile performance, but if after not considering pile, pile body runs into stake
How all soil disturbances carry out effective compensation to pile side friction when causing pile side friction to decline, it is impossible to solve to improve existing pile foundation
The problem of bearing capacity.
For solve to wear under engineering build, structures time the existing tapered shaped pile pile peripheral earth of disturbance, cause pile side friction and pile foundation to be held
The problem that loading capability declines, research and development one compensates prefabricated grouting pipeline device and grouting method one-tenth in the tapered shaped pile of side friction formula
For objectively in the urgent need to.
Utility model content
The purpose of this utility model is the problem that the tapered shaped pile pile side friction caused for pile peripheral earth disturbance declines,
One is provided to compensate prefabricated grouting pipeline device in the tapered shaped pile of side friction formula.
For reaching above-mentioned purpose, solution of the present utility model is:
A kind of compensation tapered shaped pile of side friction formula, is built-in slip casting pipe road device, grouting pipeline when tapered shaped pile is prefabricated
Device squeezes into the soil body with tapered shaped pile.A set of grouting pipeline device is made up of longitudinal Grouting Pipe, ring pipe and slurry casting machine, wherein
Longitudinal Grouting Pipe is axially set in inside ring pipe along pile body and sets grouting port on stake top, and it is axially arranged also that ring pipe is perpendicular to pile body
Being connected with longitudinal Grouting Pipe by curved catheter, slurry casting machine is check valve-type structure, along stake chow ring to being symmetricly set in a side
Heart position, side is connected with ring pipe by curved catheter, and opposite side connects with the pile body external world, and each ring pipe generally connects 4
Individual slurry casting machine.
Further, longitudinal Grouting Pipe preferably uses high-quality steel pipe, ring pipe and curved catheter preferably to use pvc pipe.
Further, longitudinal Grouting Pipe and ring pipe are answered colligation to fix or are welded on tapered shaped pile bar-mat reinforcement and put more energy on muscle, ring pipe
Outside concrete thickness is not preferably less than 30mm, and grouting pipeline internal diameter is advisable with 20～30mm, requires that smooth-going connects, protect between pipeline
Card serosity mobile performance in pipeline, it is to avoid plugging during slip casting.
Further, the ring pipe in a set of grouting pipeline device and the corresponding annular slip casting section of the slurry casting machine of connection thereof, one
Can arrange many set grouting pipeline devices in tapered shaped pile thus form multiple annular slip casting sections of different level, slip casting section can
Carrying out specific aim layout in conjunction with the distribution of Pile side soil layer and soil mass property, wherein first road slip casting section is preferably at stake top below 5m, adjacent
Slip casting section spacing is preferably 5～9m.
A kind of compensation side friction formula tapered shaped pile grouting method, refers to when pile peripheral earth disturbance causes tapered shaped pile stake side to be rubbed
During drop in resistance, available grouting pipeline device carries out a side grouting under pressure.First grouting pipeline, shape is dredged with water under high pressure before slip casting
Become the slip casting path between grouting pipeline and pile peripheral earth；Then carrying out a side grouting under pressure, single slip casting section first leads to when slip casting
Crossing grouting port and be pressed into serosity in longitudinal Grouting Pipe, serosity is diffused into surrounding soil and in stake week shape by slurry casting machine after flowing through ring pipe
Become Seed harvest, thus improve pile side friction.
Further, grouting sequence interval slip casting the most from top to bottom, each section slip casting is not preferably less than 1h, slip casting to be avoided interval time
Time plugging, it is ensured that in the range of serosity can be sufficient filling with and be trapped in a side useful space.
Further, grouting serous fluid preferably uses cement list slurry, it is desirable to good fluidity, and calculus rate is high, can add additive and improve slurry
Fluidity energy, slurry water gray scale can determine in conjunction with operating mode: for saturated soil, and the ratio of mud is preferably between 0.45～0.65；For unsaturation
Soil, the ratio of mud is preferably between 0.7～0.9；For loose gravelly soil, gravel soil, the ratio of mud is preferably between 0.5～0.6.
Further, the key element such as grouting pressure to be controlled well, flow rate of grouting strengthen monitoring during mortar depositing construction, grouting pressure is preferably
1.5～4Mpa, flow rate of grouting is preferably 30～50L/min, can constantly adjust grouting program and parameter in conjunction with concrete operating mode and monitoring information
Set, it is ensured that slip casting effect.
When grouting amount reach design require time, slip casting can be stopped；When the monitoring index such as pile body settlement, deformation reach control require or
During mortar depositing construction localized ground grout, it is possible to stop slip casting.
Owing to using technique scheme, this utility model has the advantages that
1) tapered shaped pile advantage can be played, pre-buried piping installation can be utilized again to realize slip casting around pile, tapered abnormity can be solved
Stake declines, due to pile side friction, the problem causing pile foundation bearing capacity not enough.
2) can according to different engineering-environments, in conjunction with concrete operating mode carry out slip casting section targetedly arrange, grouting program select and
Parameter designing, adaptability, motility are stronger.
3) this utility model is easy to implement, economic and environment-friendly, can improve tapered shaped pile pile side friction deposit, be reduced to improve different
The difficulty of the secondary construction that shape pile bearing capacity is carried out, saves construction cost.
Accompanying drawing explanation
Fig. 1 is this utility model grouting pipeline device organigram.
Fig. 2 is a kind of tapered shaped pile embodiment organigram of this utility model.
Fig. 3 is this utility model one embodiment engineering sectional schematic diagram.
Marginal data: 1-longitudinal direction Grouting Pipe；2-ring pipe；3-slurry casting machine；4-grouting port；(connection is longitudinally for 5-the first curved catheter
Grouting Pipe and ring pipe)；6-the second curved catheter (connection ring pipe and slurry casting machine)；The tapered shaped pile of 7-；8-cushion cap；9-calculus
Body.
Detailed description of the invention
Below in conjunction with accompanying drawing illustrated embodiment, this utility model is further described.
As it is shown in figure 1, a set of grouting pipeline device includes longitudinal Grouting Pipe 1, ring pipe 2 and slurry casting machine 3, longitudinal Grouting Pipe 1
Being connected by the first curved catheter 5 with ring pipe 2, ring pipe 2 and slurry casting machine 3 are connected by the second curved catheter 6.
Fig. 2 is a kind of tapered shaped pile embodiment organigram of this utility model.Generally, slip casting section can be in conjunction with stake
Side clay distribution and soil mass property carry out specific aim layout, and first road slip casting section is preferably between stake top below 5m, adjacent slip casting section
Away from preferably 5～9m.The present embodiment is considering in works scope in the case of geological conditions, and tapered shaped pile 7 is when prefabricated pre-buried three
Set grouting pipeline device, can form three slip casting sections, and first road slip casting section 5m below stake top, adjacent slip casting section spacing is
6m。
Fig. 2 often overlaps the longitudinal Grouting Pipe 1 in grouting pipeline device be axially set in inside ring pipe 2 along pile body and set on stake top
Grouting port 4, ring pipe 2 be perpendicular to pile body axially arranged and by the first curved catheter 5 with longitudinal direction Grouting Pipe 1 connect, slip casting
Device 3 is check valve-type structure, along stake chow ring to being symmetricly set in a center side position, side by the second curved catheter 6 with
Annular 2 pipe connection, opposite side connects with the pile body external world；Each ring pipe generally connects four slurry casting machines.
In this utility model embodiment, longitudinal Grouting Pipe 1 uses high-quality steel pipe；Ring pipe 3 and first, second curved catheter 5,6
Pvc pipe, longitudinal Grouting Pipe 1 and ring pipe 3 colligation when pile body is prefabricated is used to be fixed on tapered shaped pile bar-mat reinforcement and put more energy on muscle.
Generally, outside ring pipe, concrete thickness is not preferably less than 30mm, and grouting pipeline internal diameter is advisable with 20～30mm, this reality
Executing concrete minimum thickness outside example annular tube is 50mm, and tubing internal diameter is 30mm.In different embodiments, can basis
Concrete condition suitably adjusts, change various parameter to realize preferable effect, and this does not repeats.
Fig. 3 is this utility model one embodiment engineering sectional schematic diagram.This embodiment is to wear high ferro bridge pier engineering under the road of somewhere,
Wherein high ferro bridge pier spacing 32m, cushion cap 8 a size of 10m × 5m × 2.5m, with 10 longitudinal variable cross-section cones below each cushion cap
Type shaped pile 7 connects.The a length of 22m of stake of tapered shaped pile 7, stake end face is 1m × 1m square, and bottom surface is 0.8m × 0.8m
Square；Owing to pile body is connected above cushion cap, so every longitudinal Grouting Pipe 1 is all extended by fastener for connection when cushion cap applies
Set grouting port to cushion cap surface and on cushion cap surface, facilitate follow-up slip casting around pile with this.
In the present embodiment, for improving road passage capability, needing to widen existing road, the unloading that excavation produces causes existing
Tapered shaped pile pile peripheral earth disturbance, causes pile side friction to decline, and causes bridge pier sedimentation and deformation, affects train operation safety.
For compensating pile side friction, improve tapered shaped pile bearing capacity, need to utilize grouting pipeline device pre-buried in shaped pile
Carry out a side grouting under pressure.Specifically comprising the following steps that during mortar depositing construction
(1) design grouting program: serosity uses cement list slurry, and the ratio of mud is 0.5；Single section grouting amount design load is 0.5t.
(2) first dredge grouting pipeline with water under high pressure before slip casting, form the slip casting path between grouting pipeline and pile peripheral earth；Then enter
Row stake side grouting under pressure, single slip casting section is pressed into serosity from grouting port when slip casting in longitudinal Grouting Pipe 1, and serosity flows through ring
It is diffused into surrounding soil by slurry casting machine 3 after shape pipe 2 and forms Seed harvest 9 in stake week, thus improving pile side friction.In Fig. 3
Serosity flow direction when the direction of arrow represents grouting under pressure.
(3) key element such as grouting pressure to be controlled well, flow rate of grouting strengthen monitoring during mortar depositing construction, grouting pressure controls
1.5～4Mpa, flow rate of grouting controls 30～50L/min, and combines concrete operating mode and monitoring information and constantly adjust grouting program and ginseng
Number sets, it is ensured that slip casting effect.
(4) when grouting amount reach design require time, stop slip casting；When the monitoring index such as pile body settlement, deformation reaches to control requirement
Or during mortar depositing construction localized ground grout, also stop slip casting.
This utility model can significantly improve existing tapered shaped pile pile body and the contact surface characteristic of soil around pile, effective compensation shaft resistance
Power, improves existing tapered shaped pile bearing capacity, reduces pile foundation settlement and deformation.
The above-mentioned description to this utility model embodiment is to be understood that and apply this for ease of those skilled in the art
Utility model.These embodiments obviously easily can be made various amendment by person skilled in the art, and this explanation
General Principle be applied in other embodiments without through performing creative labour.Therefore, this utility model is not limited to here
Embodiment, those skilled in the art according to announcement of the present utility model, any amendment of being made without departing from this utility model category,
Equivalent, improvement etc., within should be included in protection domain of the present utility model.
Claims (8)
1. a grouting pipeline device, it is characterised in that: include longitudinal Grouting Pipe, ring pipe, slurry casting machine, the first curved catheter
And second curved catheter, described longitudinal Grouting Pipe is axially set in inside ring pipe along pile body and sets grouting port, described annular on stake top
Pipe be perpendicular to pile body axially arranged and by the first curved catheter with longitudinal direction Grouting Pipe connect, described slurry casting machine sets along stake chow ring to symmetry
Being placed in a center side position, side is connected with described ring pipe by the second curved catheter, and opposite side connects with the pile body external world.
Grouting pipeline device the most according to claim 1, it is characterised in that: described slurry casting machine is check valve-type structure.
Grouting pipeline device the most according to claim 1, it is characterised in that: on described ring pipe, four slip castings are arranged at interval
Device.
Grouting pipeline device the most according to claim 1, it is characterised in that: described longitudinal Grouting Pipe uses steel pipe, described
Ring pipe, first and second curved catheter use pvc pipe.
5. the tapered shaped pile of arbitrary described grouting pipeline device in a prefabricated Claims 1-4, it is characterised in that: institute
State tapered shaped pile and comprise upper and lower spaced some set grouting pipeline devices, the often ring pipe in set grouting pipeline device and company thereof
The corresponding annular slip casting section of the slurry casting machine connect, thus form some annular slip casting sections of different level, slip casting section combines stake
Side clay distribution and soil mass property carry out specific aim layout；Often each longitudinal Grouting Pipe of the set grouting pipeline device grouting port on stake top divides
Distribution is put.
Tapered shaped pile the most according to claim 5, it is characterised in that: wherein first road slip casting section be arranged at stake top 5m with
Under, adjacent slip casting section spacing is 5～9m.
Tapered shaped pile the most according to claim 5, it is characterised in that: described longitudinal Grouting Pipe and ring pipe colligation are fixed
Or be welded on tapered shaped pile bar-mat reinforcement and put more energy on muscle.
Tapered shaped pile the most according to claim 5, it is characterised in that: outside described ring pipe, concrete thickness is not less than
30mm, grouting pipeline internal diameter is 20～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405989.9U CN205742201U (en) | 2016-05-06 | 2016-05-06 | A kind of grouting pipeline device and tapered shaped pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405989.9U CN205742201U (en) | 2016-05-06 | 2016-05-06 | A kind of grouting pipeline device and tapered shaped pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205742201U true CN205742201U (en) | 2016-11-30 |
Family
ID=57369508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620405989.9U Expired - Fee Related CN205742201U (en) | 2016-05-06 | 2016-05-06 | A kind of grouting pipeline device and tapered shaped pile |
Country Status (1)
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| CN (1) | CN205742201U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804083A (en) * | 2016-05-06 | 2016-07-27 | 同济大学 | Grouting pipeline device, conical special-shaped pile and application method thereof |
| CN107489153A (en) * | 2017-09-30 | 2017-12-19 | 中国五冶集团有限公司 | A kind of casting tube for the injection of stake holes concrete grout |
| CN110468722A (en) * | 2019-08-29 | 2019-11-19 | 中天路桥有限公司 | A kind of more folding face abnormity clear-water concrete bridge abutment moulding plate construction methods |
| CN114753414A (en) * | 2022-04-13 | 2022-07-15 | 中交三航局第三工程有限公司 | Intelligent anti-scouring device and method for annular grid type fluidized soil steel pipe pile |
-
2016
- 2016-05-06 CN CN201620405989.9U patent/CN205742201U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804083A (en) * | 2016-05-06 | 2016-07-27 | 同济大学 | Grouting pipeline device, conical special-shaped pile and application method thereof |
| CN107489153A (en) * | 2017-09-30 | 2017-12-19 | 中国五冶集团有限公司 | A kind of casting tube for the injection of stake holes concrete grout |
| CN107489153B (en) * | 2017-09-30 | 2019-11-05 | 中国五冶集团有限公司 | A kind of casting tube for the injection of stake holes concrete grout |
| CN110468722A (en) * | 2019-08-29 | 2019-11-19 | 中天路桥有限公司 | A kind of more folding face abnormity clear-water concrete bridge abutment moulding plate construction methods |
| CN114753414A (en) * | 2022-04-13 | 2022-07-15 | 中交三航局第三工程有限公司 | Intelligent anti-scouring device and method for annular grid type fluidized soil steel pipe pile |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20161130 Termination date: 20210506 |