CN207904912U - Band expands shoe stake side two-step-filling construction of prefabricated piles structure - Google Patents
Band expands shoe stake side two-step-filling construction of prefabricated piles structure Download PDFInfo
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- CN207904912U CN207904912U CN201721877267.4U CN201721877267U CN207904912U CN 207904912 U CN207904912 U CN 207904912U CN 201721877267 U CN201721877267 U CN 201721877267U CN 207904912 U CN207904912 U CN 207904912U
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Abstract
The utility model discloses a kind of bands to expand shoe stake side two-step-filling construction of prefabricated piles structure, belongs to pile foundation construction field.The constructing structure comprising expand shoe, casing, grouting case, cement mortar and prefabricated pile, the pile top position of prefabricated pile is fixed in the expansion shoe, and its maximum cross-section outer diameter is more than prefabricated pile outer diameter；Prefabricated pile and expansion shoe are piled in foundation soil, and have gap between prefabricated pile and foundation soil；Foundation soil surface is pre-buried there are one the casing being sleeved on outside prefabricated pile, and casing is clamped to form the slip casting region for being connected to the gap with prefabricated pile and foundation soil surface, and the grouting case is connected to the slip casting region by conduit.The utility model is directed to the construction problem, propose it is a kind of low cost, low consumption when, low-material-consumption two-step-filling method, using casing, the total system of mobile grouting case and connecting conduit, realize the two-step-filling effect beaten during prefabricated pile, and then construction quality is improved, reduce construction cost.
Description
Technical field
The utility model belongs to pile foundation construction field, and specially a kind of band expands shoe stake side two-step-filling construction of prefabricated piles
Structure.
Background technology
As urban development accelerates, civilian infrastructure, bridge, public and civil buildings scale are increasing, especially
In China southeastern coastal areas, soft clay layer depth is thick, and to basic requirement for bearing capacity, when the river rises the boat goes up.
Use scope is more and more extensive in recent years for prefabricated tubular pile, this depends on it and manufactures streamlined, convenient transportation, construction soon
The advantages that fast, largely reduces cost.On the other hand, the extensive of industry is obtained in the construction method of prefabricated pile lateral irrigation slurry
Approval, the raising pile bearing capacity that this method can be larger, reduces sedimentation.By a large amount of theoretical and experimental study of industry, fully
Demonstrate the Optimality of prefabricated pile lateral irrigation slurry.
The effects that stake lateral irrigation paste-making method improves foundation pile performance reason and is, slurries are by compacted, filling and consolidation, keeps stake all
The porosity of soil declines, and density improves；On the other hand, slurries are entered by modes such as infiltrations in the gap of soil around pile, condense it
The intensity of this part soil body improves afterwards, and the globality between stake soil has also obtained effective enhancing.
And the traditional method of existing grouting method mostly first piling post-grouting, disadvantage is, before grouting, Pile side soil
Recoverable force, pore water outflow, causes the gap between stake soil to reduce.Grouting process on this basis can make grouting effect big
It gives a discount.
In this context, the utility model is for gap deficiency problem between stake soil, with it is inexpensive, take less as principle,
Provide better solution.
Invention content
There are intrinsic disadvantages for grouting method after being driven piles due to prefabricated pile, grouting effect can be caused to have a greatly reduced quality.This practicality
Novel pin is to the construction problem, it is proposed that it is a kind of low cost, low consumption when, low-material-consumption two-step-filling method, using casing, movement
Be in the milk case and the total system of connecting conduit, realizes the two-step-filling effect beaten during prefabricated pile, and then improve and apply
Working medium amount, reduces construction cost.
Specific technical solution used by the utility model is as follows：
Band expands shoe stake side two-step-filling construction of prefabricated piles structure comprising expands shoe, casing, grouting case, cement
Slurry and prefabricated pile, the pile top position of prefabricated pile is fixed in the expansion shoe, and its maximum cross-section outer diameter is more than outside prefabricated pile
Diameter；Prefabricated pile and expansion shoe are piled in foundation soil, and have gap between prefabricated pile and foundation soil；Foundation soil surface is pre-
It buries there are one being coaxially nested in casing outside prefabricated pile, described in casing is clamped with prefabricated pile and foundation soil surface and to be formed and be connected to
The slip casting region in gap, the grouting case are connected to the slip casting region by conduit.
Preferably, the casing side wall offers injected hole, end of conduit is connected to the injected hole, and conduit is equipped with
The control valve of control piper break-make.
Preferably, the prefabricated pile includes but not limited to concrete-pile, piling bar.
Preferably, the maximum cross-section diameter of the shoe is bigger 10cm than prefabricated pile outer diameter.
Preferably, the shoe uses silent form or opening form, the latter that can form native plug, soil compaction effect is reduced
It answers.
Preferably, the grouting case is packaged type grouting case.
In terms of existing technologies, advantage is as follows for the utility model：
One, equipment used in this method is not necessarily to specific customization, can be formed by simply processing assembling, consumptive material is few；
Two, this method does not increase special link on the basis of original construction technology, takes few；
Three, this method can preferably realize two-step-filling effect, effectively improve construction of prefabricated piles quality；
Four, this method can be realized to filling speed and cement mortar dosage extremely, reduce the waste of material；
Five, this method can be applicable in the prefabricated pile of the multiple materials such as concrete-pile, piling bar, applied widely；
Six, this method is of less demanding to construction environment and soil property, easy to spread.
Description of the drawings
Fig. 1 is that band expands shoe stake side two-step-filling construction of prefabricated piles structure vertical section schematic diagram in the utility model；
Fig. 2 is the enlarged diagram of prefabricated pile and casing position in the utility model.
In figure：1, expand shoe；2, casing；3, be in the milk case；4, cement mortar；5, prefabricated pile；6, conduit.
Specific implementation mode
The utility model is further elaborated and is illustrated with reference to the accompanying drawings and detailed description.
As shown in Figure 1, expanding shoe stake side two-step-filling construction of prefabricated piles structural schematic diagram for a kind of band in the present embodiment.
The two-step-filling during piling may be implemented in the constructing structure so that the gap between prefabricated pile and foundation soil, in Pile side soil
It is just filled by cement mortar before recoverable force, improves the density and integral strength of soil around pile, enhance the globality between stake soil.
The constructing structure includes expanding shoe 1, casing 2, grouting case 3, prefabricated pile 5, conduit 6.Expansion shoe 1 is fixed on pre-
The pile top position of stake 5 processed, and its maximum cross-section outer diameter is bigger 10cm than 5 outer diameter of prefabricated pile or so.Prefabricated pile 5 and expansion shoe 1 one
It rises and is vertically piled in foundation soil, it is bigger than prefabricated pile 5 due to expanding shoe 1, so that having between prefabricated pile 5 and foundation soil
There is the gap of annular.As shown in Fig. 2, foundation soil surface is pre-buried there are one casing 2, casing 2 is coaxial in the bottomless tubular of uncovered
It is set in outside prefabricated pile 5.In the present embodiment, casing overall length 100cm is embedded to earth's surface following depth 50cm, both can guarantee casing
Itself is sufficiently stable, and cement mortar is not overflowed.Casing diameter 200cm bigger than prefabricated pile outer diameter or so.Casing 2 with it is prefabricated
Stake 5 and foundation soil surface are clamped to form a slip casting region, the sky between the slip casting regional connectivity prefabricated pile 5 and foundation soil
Gap, therefore can under the effect of gravity flow automatically into gap between stake soil after cement mortar 4 is injected the region.In the present embodiment,
Cement mortar 4 is poured into advance in grouting case 3, and grouting case 3, can be from provided with wheels or carrying and vehicle using the grouting case of packaged type
On.2 side wall of casing offers injected hole, and grouting case 3 is connected to the injected hole by conduit 6, and conduit 6 is equipped with control piper
The control valve of break-make.The material of conduit 6 includes but not limited to hose, aluminum pipe etc..
In the present embodiment, band expands shoe stake side two-step-filling construction of prefabricated piles method and includes the following steps：
Step 1：Before beating prefabricated pile 5 using modes such as hammering, static pressure, the pre-buried steel casing 2 in stake position position is being designed,
When pre-buried casing 2, the casing center of circle and stake position co-axially align；
Before step 2, piling, prefabricated expansion shoe 1 is fixed in the pile top of prefabricated pile 5, is used in the present embodiment silent
Formula shoe, shoe diameter is more slightly larger than prefabricated pile outer diameter (about 10cm or so), and mode is reliably connected using welding or bolt etc.；
Step 3：Mobile grouting case 3 is moved near stake position, ensures there are enough cement mortars 4 in grouting case, and
Cement mortar liquid level is slightly below 2 top of casing, ensures that cement mortar can enter the gap between stake soil under gas pressure enough；
Step 4：The injected hole and grouting case 3 on casing 2 are connected using conduit 6, it is ensured that sealing, and open on conduit 6
Control valve checks that can cement mortar 4 smooth input slip casting region, it is ensured that valve is closed after errorless；
Step 5：According to design stake position, prefabricated pile 5 is first squeezed into the depth of about 50~100cm, makes to generate one between stake soil
Fixed gap space；
Step 6：The control valve opened later on conduit 6 is in the milk, and guides cement mortar 4 to fill by pre-buried casing 2
Gap between prefabricated pile 5 and foundation soil；
Step 7：Continue to drive piles, while by valve controlled grouting speed, and is mended in grouting case according to cement mortar dosage
Water-filling mud ensures the fullness degree of cement mortar, makes the gap between the real-time bored pile soil of slurries.
For the intrinsic disadvantage of piling post-grouting, the utility model provides new thinking, it is proposed that band expands shoe stake
Side two-step-filling construction of prefabricated piles method.Compared to conventional piles lateral irrigation starch, the invention the method can low cost, low consumption when, it is low
On the basis of consumptive material, stake side two-step-filling is realized, it is effective to improve bearing capacity of pile foundation and stake soil globality.
In addition, the prefabricated pile in the utility model is suitable for the stake of the multiple materials such as concrete-pile, piling bar.Above-described embodiment
In closed type shoe can also be changed to opening form, can be formed soil plug, reduce soil compaction effect.
Embodiment described above is a kind of preferable scheme of the utility model, and so it is not to limit this practicality
It is novel.Those of ordinary skill in technical field can be in the case where not departing from the spirit and scope of the utility model
It makes a variety of changes and modification.Therefore all technical solutions for taking the mode of equivalent substitution or equivalent transformation to be obtained, all fall within
In the scope of protection of the utility model.
Claims (6)
1. a kind of band expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that including expanding shoe (1), shield
Cylinder (2), grouting case (3) and prefabricated pile (5), the pile top position of prefabricated pile (5) is fixed in the expansion shoe (1), and it is most
Big cross-sectional outer diameter is more than prefabricated pile (5) outer diameter；Prefabricated pile (5) and expansion shoe (1) are piled in foundation soil, and prefabricated pile
(5) there is gap between foundation soil；Foundation soil surface is pre-buried to be nested in the external casing (2) of prefabricated pile (5) there are one coaxial,
Casing (2) is clamped to form the slip casting region for being connected to the gap with prefabricated pile (5) and foundation soil surface, the grouting case
(3) the slip casting region is connected to by conduit (6).
2. band as described in claim 1 expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that described
Casing (2) side wall offers injected hole, and conduit (6) end is connected to the injected hole, and conduit (6) is equipped with control piper break-make
Control valve.
3. band as described in claim 1 expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that described
Prefabricated pile (5) includes but not limited to concrete-pile, piling bar.
4. band as described in claim 1 expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that the stake
The maximum cross-section diameter of boots (1) is bigger 10cm than prefabricated pile (5) outer diameter.
5. band as described in claim 1 expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that described
Shoe (1) uses silent form or opening form.
6. band as described in claim 1 expands shoe stake side two-step-filling construction of prefabricated piles structure, which is characterized in that described
The case (3) that is in the milk is packaged type grouting case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877267.4U CN207904912U (en) | 2017-12-28 | 2017-12-28 | Band expands shoe stake side two-step-filling construction of prefabricated piles structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721877267.4U CN207904912U (en) | 2017-12-28 | 2017-12-28 | Band expands shoe stake side two-step-filling construction of prefabricated piles structure |
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| Publication Number | Publication Date |
|---|---|
| CN207904912U true CN207904912U (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721877267.4U Active CN207904912U (en) | 2017-12-28 | 2017-12-28 | Band expands shoe stake side two-step-filling construction of prefabricated piles structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695242A (en) * | 2018-12-21 | 2019-04-30 | 兰州有色冶金设计研究院有限公司 | Eliminate the prefabricated pile and its construction method of breathing soil layer frictional force |
-
2017
- 2017-12-28 CN CN201721877267.4U patent/CN207904912U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109695242A (en) * | 2018-12-21 | 2019-04-30 | 兰州有色冶金设计研究院有限公司 | Eliminate the prefabricated pile and its construction method of breathing soil layer frictional force |
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