CN204238209U - A kind of back-up sand bamboo joint pile - Google Patents
A kind of back-up sand bamboo joint pile Download PDFInfo
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- CN204238209U CN204238209U CN201420688788.5U CN201420688788U CN204238209U CN 204238209 U CN204238209 U CN 204238209U CN 201420688788 U CN201420688788 U CN 201420688788U CN 204238209 U CN204238209 U CN 204238209U
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Abstract
The utility model discloses a kind of back-up sand bamboo joint pile, back-up sand bamboo joint pile connects pile sinking in a joint manner by more piece and forms to the bamboo joint pile in soil layer and pile tube and sandstone filler.Its construction method is: centered by stake position, the material storage tube depositing sandstone filler is set on ground, after bamboo joint pile or pile tube are connected, by stake machine stake squeezed into or be pressed in soil layer, rely on bamboo joint pile or pile tube to the frictional force of sandstone filler, by sandstone filling packing between stake and pile soil horizon.The utility model can complete back-up sand construction fast, easily, pile quality and durability reliably, can promote the super quiet hole pressure rapid dispersion produced during the conventional method construction preformed pile of soft clay area, accelerate foundation soil consolidation, improve the side friction of soil around pile, and reduce the final settlement of building.
Description
Technical field
The utility model relates to piling Technology field, particularly relates to a kind of construction of prefabricated piles technology, specifically a kind of back-up sand bamboo joint pile.
Background technology
Current preformed pile all adopts batch production to make, and the preformed pile that batch production makes has steady quality, the feature that pile shaft material intensity is high and cost is lower, and preformed pile is in the important part of construction project pile foundation market share.Tradition preformed pile has a wide range of applications in coastal soft clay area, the clay distribution feature of soft clay area on to cover Soft Soil Layer thicker, bearing stratum is comparatively dark, and foundation soil water content is high, and bearing capacity is lower.Thus, in order to reach the bearing capacity ability of designing requirement, often need to adopt that to increase considerably stake long or increase the mode in stake footpath and realize.Under this kind of foundation soil condition and stress condition, the bearing capacity that pile soil horizon can provide is lower, and bearing capacity of single pile is low, and pile shaft material intensity is not also utilized effectively.Tradition preformed pile, when constructing in soft clay area, owing to having significant soil compaction effect, causes excess pore water pressure sharply to rise, and dissipating slowly, the shear strength of the soil body reduces, and easily deforms under external force, if it is improper to control when constructing, easily damage is caused to surrounding building and stake itself.
The existing method being promoted saturated soft soil draining, raising bearing capacity by stake week back-up sand at present, it is mainly divided into two classes, one class is the method adopting steel pile casting, steel pile casting is sunk in soil, precast pile or the soil body between cast-in-place pile body and casing are taken out, fill with as inserts such as sandstones in the space between pile body and casing, these class methods need to sink to sleeve pipe and fetch earth, work progress is loaded down with trivial details, and efficiency of construction is greatly lower; During sandstone band buries by the another kind of preformed pile for employing band pile section; but this pile section is for adopting steel prefabricated; be connected by the pile tube of certain method with external diameter such as grade; form the pile body structure of band pile section, but the connection of this kind of method pile section and pile body is wasted time and energy, cost is higher; and quality of connection is difficult to ensure; meanwhile, the ring that steel make and syndeton unprotect layer, durability is difficult to ensure.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and provide can complete fast, easily back-up sand construction, pile quality and durability are reliable and can promote the super quiet hole pressure rapid dispersion produced during the conventional method construction preformed pile of soft clay area, accelerate foundation soil consolidation, improve the side friction of soil around pile, reduce a kind of back-up sand bamboo joint pile of the final settlement of building.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of back-up sand bamboo joint pile, comprise more piece and connect pile sinking in a joint manner to the bamboo joint pile in soil layer and pile tube and sandstone filler, bamboo joint pile and pile tube are the shaping preformed pile that is prefabricated in the factory, and the ring pile body of bamboo joint pile is shaped with at equal intervals around projection, sandstone filler by when bamboo joint pile or pile tube pile sinking by pile body in its frictional force band underground layer produced around being filled between pile body and pile soil horizon.
For optimizing technique scheme, the measure taked also comprises:
The slub space of above-mentioned bamboo joint pile is 50cm to 200cm.
The external diameter 5cm to 20cm larger than the external diameter of non-ring part pile body of above-mentioned bamboo joint pile ring.
Above-mentioned bamboo joint pile and the combination of pile tube are that bottom stake, first segment is bamboo joint pile, and remainder is bamboo joint pile or pile tube.
Compared with prior art, the utility model comprises more piece and connects pile sinking in a joint manner to the bamboo joint pile in soil layer and pile tube and sandstone filler, bamboo joint pile and pile tube are the shaping preformed pile that is prefabricated in the factory, and the ring pile body of bamboo joint pile is shaped with at equal intervals around projection, sandstone filler by when bamboo joint pile or pile tube pile sinking by pile body in its frictional force band underground layer produced around being filled between pile body and pile soil horizon.The utility model has the advantage of: pile body ring is prefabricated there is not the problem of pile section and pile body quality of connection instability and poor durability; The interlocking etc. of the fillers such as sandstone by ring in pile driving process can be with in underground layer, is filled in stake week, and work progress is convenient.
Accompanying drawing explanation
View when Fig. 1 is the construction of the utility model back-up sand bamboo joint pile;
Fig. 2 is one of final effect schematic diagram of the utility model back-up sand bamboo joint pile;
Fig. 3 is the final effect schematic diagram two of the utility model back-up sand bamboo joint pile.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 to Fig. 3 is structural representation of the present utility model.
Reference numeral is wherein: bamboo joint pile 1, ring 11, pile tube 2, sandstone filler 3, material storage tube 4.
As shown in Figure 1 to Figure 3, a kind of back-up sand bamboo joint pile of the present utility model, comprise more piece and connect pile sinking in a joint manner to the bamboo joint pile 1 in soil layer and pile tube 2 and sandstone filler 3, bamboo joint pile 1 and pile tube 2 are the shaping preformed pile that is prefabricated in the factory, and the ring 11 pile body of bamboo joint pile 1 is shaped with at equal intervals around projection, sandstone filler 3 by when bamboo joint pile 1 or pile tube 2 pile sinking by pile body in its frictional force band underground layer produced around being filled between pile body and pile soil horizon.When being constructed in soft clay area at present, generally adopt by promoting that the method for saturated soft soil draining improves the bearing capacity of stake in stake week back-up sand.Traditional construction method work progress is loaded down with trivial details, and efficiency of construction is low, and pile section is for adopting steel prefabricated, and be connected by the pile tube of certain method with external diameter such as grade, this pile section cost is higher, and quality of connection is difficult to ensure.The ring 11 of bamboo joint pile 1 of the present utility model is directly prefabricated one-body molded with stake in factory, thus pile quality and durability are reliable, sandstone filler 3 by utilize during pile sinking pile body in its frictional force band underground layer produced around being filled between pile body and pile soil horizon.The super quiet hole pressure rapid dispersion produced during the conventional method construction preformed pile of soft clay area can be promoted, accelerate foundation soil consolidation, improve the side friction of soil around pile, and reduce the final settlement of building.
Ring 11 in the utility model bamboo joint pile 1 and the spacing between ring 11 are 50cm to 200cm.Be preferably 100cm to 150cm.Can minimum value 50cm be selected, also can select maximum value 200cm.
In embodiment, the external diameter 5cm to 20cm larger than the external diameter of non-ring part pile body of bamboo joint pile 1 ring 11.
Combination the best of the utility model bamboo joint pile 1 and pile tube 2 for the stake of first segment bottom stake be bamboo joint pile 1, the stake of all the other coupling parts can be bamboo joint pile 1, also can be pile tube 2.
The utility model additionally provides a kind of construction method of back-up sand bamboo joint pile, and the method comprises the following steps successively:
A), centered by stake position, the material storage tube 4 depositing sandstone filler 3 is set at ground place, in material storage tube 4, has been pre-charged with sandstone filler 3;
B), to sling first segment bamboo joint pile 1, be located in stake position place, by stake machine, bamboo joint pile 1 is squeezed into or is pressed in soil layer, by rubbing action and the interlocking of bamboo joint pile 1, sandstone filler 3 being brought in pile soil horizon, making sandstone filler 3 around being filled between pile body and pile soil horizon, wherein, notice that whether sandstone filler 3 is enough, if will supplement in material storage tube (4) in time during sandstone filler 3 lazy weight;
D), slinging, another saves bamboo joint pile 1 or pile tube 2, after connecting with first segment bamboo joint pile 1, squeezed into or be pressed into by stake machine in soil layer, by the rubbing action of bamboo joint pile 1 and the rubbing action of interlocking or pile tube 2, sandstone filler 3 is brought in pile soil horizon, making sandstone filler 3 around being filled between pile body and pile soil horizon, will be supplemented in time equally in material storage tube 4 during sandstone filler 3 lazy weight;
E), the process of steps d is repeated, until pile sinking is complete.
The pile crown that the utility model pile extension saves stake at present stops pile sinking at pile sinking to during distance 1 meter, ground, and then the stake that will connect is sling and to be docked with the stake of lower joint, can pile sinking be continued after having docked, namely by stake machine, the bamboo joint pile 1 connected or pile tube 2 be squeezed into or be pressed in soil layer.
In embodiment, storage vat 4 of the present utility model is for having the steel cylinder of upper and lower both ends open.When pile sinking, stake wears the both ends open up and down of storage vat 4.
In embodiment, the profile of storage vat 4 comprises column type and falls funnel type.Storage vat 4 can adopt column type, also can adopt down funnel type, certainly also can adopt other to be suitable for any one shape bucket of blanking.
In embodiment, the height of storage vat 4 is 50cm to 120cm.The optimum height of storage vat 4 is 80cm.
In embodiment, when the profile of storage vat 4 is column type, the internal diameter 30cm to 80cm larger than the diameter of pile body of storage vat 1.
In embodiment, if storage vat 4 employing is that profile is down funnel type, then the internal diameter of storage vat 4 end opening 10cm to 40cm larger than the diameter of pile body, the internal diameter 30cm to 100cm larger than the diameter of pile body that storage vat 4 is suitable for reading.
A kind of back-up sand bamboo joint pile of the present utility model and construction method thereof, back-up sand construction can be completed fast, easily, pile quality and durability reliable, the super quiet hole pressure rapid dispersion produced during the conventional method construction preformed pile of soft clay area can be promoted, accelerate foundation soil consolidation, improve the side friction of soil around pile, and reduce the final settlement of building.
The utility model has the advantage of: pile body ring is prefabricated there is not the problem of pile section and pile body quality of connection instability and poor durability; The interlocking etc. of the fillers such as sandstone by ring in pile driving process can be with in underground layer, is filled in stake week, and work progress is convenient.
Claims (4)
1. a back-up sand bamboo joint pile, it is characterized in that: comprise more piece and connect pile sinking in a joint manner to the bamboo joint pile (1) in soil layer and pile tube (2) and sandstone filler (3), described bamboo joint pile (1) and pile tube (2) are the shaping preformed pile that is prefabricated in the factory, and the ring (11) pile body of described bamboo joint pile (1) is shaped with at equal intervals around projection, described sandstone filler (3) by when bamboo joint pile (1) or pile tube (2) pile sinking by pile body in its frictional force band underground layer produced around being filled between pile body and pile soil horizon.
2. a kind of back-up sand bamboo joint pile according to claim 1, is characterized in that: ring (11) spacing of described bamboo joint pile (1) is 50cm to 200cm.
3. a kind of back-up sand bamboo joint pile according to claim 1, is characterized in that: the external diameter 5cm to 20cm larger than the external diameter of non-ring part pile body of described bamboo joint pile (1) ring (11).
4. a kind of back-up sand bamboo joint pile according to claim 1, it is characterized in that: described bamboo joint pile (1) and the combination of pile tube (2) are that bottom stake, first segment is bamboo joint pile (1), and remainder is bamboo joint pile (1) or pile tube (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688788.5U CN204238209U (en) | 2014-11-18 | 2014-11-18 | A kind of back-up sand bamboo joint pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420688788.5U CN204238209U (en) | 2014-11-18 | 2014-11-18 | A kind of back-up sand bamboo joint pile |
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| CN204238209U true CN204238209U (en) | 2015-04-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389305A (en) * | 2014-11-18 | 2015-03-04 | 中淳高科桩业股份有限公司 | Sand-filled bamboo-joint pile and construction method thereof |
| CN106759296A (en) * | 2017-01-17 | 2017-05-31 | 浙江工业大学 | Drainable irregular-section bamboo joint pipe pile and root planting type construction method thereof |
| CN113279419A (en) * | 2021-07-14 | 2021-08-20 | 四川藏区高速公路有限责任公司 | Anti-slide pile and tunnel portal anti-slide pile simulation test device |
-
2014
- 2014-11-18 CN CN201420688788.5U patent/CN204238209U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389305A (en) * | 2014-11-18 | 2015-03-04 | 中淳高科桩业股份有限公司 | Sand-filled bamboo-joint pile and construction method thereof |
| CN106759296A (en) * | 2017-01-17 | 2017-05-31 | 浙江工业大学 | Drainable irregular-section bamboo joint pipe pile and root planting type construction method thereof |
| CN113279419A (en) * | 2021-07-14 | 2021-08-20 | 四川藏区高速公路有限责任公司 | Anti-slide pile and tunnel portal anti-slide pile simulation test device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180920 Address after: 315105 159 building 23, Qiming Road, Yinzhou District, Ningbo, Zhejiang, 159 Patentee after: Ningbo Zhong Chun Pile Foundation Engineering Technology Co., Ltd. Address before: 315145 Zhongchun Gaoke Pile Co., Ltd. No. 166 Linjiang Road, Ningbo Economic and Technological Development Zone, Zhejiang Province Patentee before: Zhongchun Gaoke Pile Industry Co., Ltd. |
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| TR01 | Transfer of patent right |