CN104389305A - Sand-filled bamboo-joint pile and construction method thereof - Google Patents
Sand-filled bamboo-joint pile and construction method thereof Download PDFInfo
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- CN104389305A CN104389305A CN201410653595.0A CN201410653595A CN104389305A CN 104389305 A CN104389305 A CN 104389305A CN 201410653595 A CN201410653595 A CN 201410653595A CN 104389305 A CN104389305 A CN 104389305A
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- pile
- bamboo joint
- sand
- bamboo
- joint pile
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/08—Improving by compacting by inserting stones or lost bodies, e.g. compaction piles
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/16—Shapes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a sand-filled bamboo-joint pile and a construction method thereof. The sand-filled bamboo-joint pile consists of multiple sections of bamboo-joint piles and tubular piles and sand-gravel filler, wherein the bamboo-joint piles and the tubular piles are connected in a combined manner and are sunk into a soil layer. The construction method comprises the steps of taking the location of the pile as the center, arranging a storage barrel, which is used for storing the sand-gravel filler, on the ground, connecting the bamboo-joint piles or the tubular piles, then, driving or pressing the piles into the soil layer by a piling machine, and filling the sand-gravel filler between the pile and the soil layer surrounding the pile by virtue of the frictional force to the sand-gravel filler caused by the bamboo-joint piles or the tubular piles. According to the sand-filled bamboo-joint pile and the construction method thereof, sand filling construction can be quickly and conveniently completed, the quality and durability of a pile body are reliable, the phenomenon that soft soil areas are subjected to rapid excess pore-water pressure dissipation when precast piles are constructed by the traditional methods can be improved, the solidification of foundation soil is accelerated, the side friction of pile surrounding soil is increased, and the final settlement of a building is reduced.
Description
Technical field
The present invention relates to piling Technology field, particularly relate to a kind of construction of prefabricated piles technology, specifically a kind of back-up sand bamboo joint pile and construction method thereof.
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 by this invention 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 and the construction method thereof of the final settlement of building.
The present invention 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.
Present invention also offers a kind of construction method of back-up sand bamboo joint pile, the method comprises the following steps successively:
A), centered by stake position, the material storage tube depositing sandstone filler is set at ground place, in material storage tube, has been pre-charged with sandstone filler;
B), to sling first segment bamboo joint pile, be located in stake position place, by stake machine bamboo joint pile squeezed into or be pressed in soil layer, by rubbing action and the interlocking of bamboo joint pile, sandstone filler is brought in pile soil horizon, making sandstone packing ring around being filled between pile body and pile soil horizon, being supplemented in time in material storage tube during sandstone filler lazy weight;
D), slinging, another saves bamboo joint pile or pile tube, after connecting with first segment bamboo joint pile, squeezed into or be pressed into by stake machine in soil layer, by the rubbing action of bamboo joint pile and the rubbing action of interlocking or pile tube, sandstone filler is brought in pile soil horizon, making sandstone packing ring around being filled between pile body and pile soil horizon, being supplemented in time in material storage tube during sandstone filler lazy weight;
E), the process of steps d is repeated, until pile sinking is complete.
Above-mentioned storage vat is the steel cylinder with upper and lower both ends open.
The profile of above-mentioned storage vat comprises column type and falls funnel type.
The height of above-mentioned storage vat is 50cm to 120cm.
The profile of above-mentioned storage vat is column type, the internal diameter 30cm to 80cm larger than the diameter of pile body of storage vat.
The profile of above-mentioned storage vat is for falling funnel type, the internal diameter 10cm to 40cm larger than the diameter of pile body of storage vat end opening, the internal diameter 30cm to 100cm larger than the diameter of pile body that storage vat is suitable for reading.
Compared with prior art, the present invention includes 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.The invention has the advantages that: 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 back-up sand bamboo joint pile of the present invention construction;
Fig. 2 is one of final effect schematic diagram of back-up sand bamboo joint pile of the present invention;
Fig. 3 is the final effect schematic diagram two of back-up sand bamboo joint pile of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in further detail.
Fig. 1 to Fig. 3 is structural representation of the present invention.
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 invention, 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 invention 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 bamboo joint pile 1 of the present invention 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 bamboo joint pile 1 of the present invention 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.
Present invention also offers a kind of construction method of back-up sand bamboo joint pile, 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 pile extension of the present invention 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 invention 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 invention 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 invention has the advantages that: 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 (10)
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).
5. a construction method for the back-up sand bamboo joint pile described in the arbitrary claim of Claims 1-4, is characterized in that: 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) first segment bamboo joint pile of, slinging (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) is brought in pile soil horizon, making sandstone filler (3) around being filled between pile body and pile soil horizon, being supplemented in material storage tube (4) during sandstone filler (3) lazy weight in time;
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, being supplemented in material storage tube (4) during sandstone filler (3) lazy weight in time;
E), the process of steps d is repeated, until pile sinking is complete.
6. the construction method of a kind of back-up sand bamboo joint pile according to claim 5, is characterized in that: described storage vat (4) is for having the steel cylinder of upper and lower both ends open.
7. the construction method of a kind of back-up sand bamboo joint pile according to claim 6, is characterized in that: the profile of described storage vat (4) comprises column type and falls funnel type.
8. the construction method of a kind of back-up sand bamboo joint pile according to claim 7, is characterized in that: the height of described storage vat (4) is 50cm to 120cm.
9. the construction method of a kind of back-up sand bamboo joint pile according to claim 8, is characterized in that: the profile of described storage vat (4) is column type, the internal diameter 30cm to 80cm larger than the diameter of pile body of described storage vat (1).
10. the construction method of a kind of back-up sand bamboo joint pile according to claim 8, it is characterized in that: the profile of described storage vat (4) is for falling funnel type, the internal diameter 10cm to 40cm larger than the diameter of pile body of described storage vat (4) end opening, the internal diameter 30cm to 100cm larger than the diameter of pile body that storage vat (4) is suitable for reading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653595.0A CN104389305B (en) | 2014-11-18 | 2014-11-18 | A kind of back-up sand bamboo joint pile and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653595.0A CN104389305B (en) | 2014-11-18 | 2014-11-18 | A kind of back-up sand bamboo joint pile and construction method thereof |
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| CN104389305A true CN104389305A (en) | 2015-03-04 |
| CN104389305B CN104389305B (en) | 2016-08-17 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106192994A (en) * | 2016-08-30 | 2016-12-07 | 浙江大学建筑设计研究院有限公司 | Assembly concrete prefabricated pile |
| CN110206014A (en) * | 2019-03-27 | 2019-09-06 | 河海大学 | Fill out sand tube stake Bridgehead by Blastig reinforced construction method and its structure |
| CN111321729A (en) * | 2020-04-07 | 2020-06-23 | 凌晓明 | Precast pile, sand filling cylinder and construction method |
| CN111622273A (en) * | 2020-05-08 | 2020-09-04 | 浙江大学 | Test device and test method for simulating pile foundation bearing performance of precast pile filled with discrete drainage materials around |
| CN112343042A (en) * | 2020-12-01 | 2021-02-09 | 宁波中淳高科股份有限公司 | UHPC prefabricated special-shaped pile and preparation 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106192994A (en) * | 2016-08-30 | 2016-12-07 | 浙江大学建筑设计研究院有限公司 | Assembly concrete prefabricated pile |
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| CN111321729A (en) * | 2020-04-07 | 2020-06-23 | 凌晓明 | Precast pile, sand filling cylinder and construction method |
| CN111622273A (en) * | 2020-05-08 | 2020-09-04 | 浙江大学 | Test device and test method for simulating pile foundation bearing performance of precast pile filled with discrete drainage materials around |
| CN111622273B (en) * | 2020-05-08 | 2021-04-23 | 浙江大学 | Test device and test method for simulating pile foundation bearing performance of precast piles filled with surrounding bulk drainage material |
| CN112343042A (en) * | 2020-12-01 | 2021-02-09 | 宁波中淳高科股份有限公司 | UHPC prefabricated special-shaped pile and preparation 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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| Publication number | Publication date |
|---|---|
| CN104389305B (en) | 2016-08-17 |
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Effective date of registration: 20180910 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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