CN102943465A - Drilling-free forming pile based on radial pressurization and construction method and application thereof - Google Patents
Drilling-free forming pile based on radial pressurization and construction method and application thereof Download PDFInfo
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- CN102943465A CN102943465A CN2012104916605A CN201210491660A CN102943465A CN 102943465 A CN102943465 A CN 102943465A CN 2012104916605 A CN2012104916605 A CN 2012104916605A CN 201210491660 A CN201210491660 A CN 201210491660A CN 102943465 A CN102943465 A CN 102943465A
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Abstract
The invention discloses a drilling-free forming pile based on radial pressurization and a construction method and application thereof. The drilling-free forming pile comprises a pile body, the pile body is formed through that slurry is continuously filled in a hard screen pipe wrapped by one layer of elastic sealing film until the elastic sealing film is burst open and the filled slurry enters a peripheral soil layer, the filled slurry is cement mortar or concrete, the hard screen pipe is a pipe body is inserted in the soil layer in advance, and a plurality of slurry filling holes are arranged on the side wall of the hard screen pipe. The construction method includes: 1, hard screen pipe inserting; 2, slurry filling; and 3, pile body forming. The formed pile body is an anti-sliding pile for stabilizing side slopes or a reinforcing pile for reinforcing a foundation, and a plurality of formed pile bodies form an anti-seepage wall. The drilling-free forming pile is reasonable in structural design, convenient to construct, low in investment cost, good in using effect, high in practical value, wide in application range and capable of solving the problems of inconvenient construction, high investment cost, long construction period, poor using effect and the like of an existing pile foundation.
Description
Technical field
The invention belongs to the pile body technical field of construction, especially relate to a kind of hole moulding stake and job practices and application of exempting from based on radially pressurizeing.
Background technology
Nowadays, the pile foundation that adopts in the civil engineering field mainly is divided into preformed pile and castinplace pile according to job practices.Wherein, preformed pile is various materials, the various forms of stakes (such as timber, concrete square pile, prestressed concrete pipe pile, piling bar etc.) of making in factory or job site first, with sinking apparatus stake is squeezed into, is pressed into again or shake and bury.At present, adopting more preformed pile mainly is concrete precast pile and piling bar two large classes.During practice of construction, because the weight of prefabricated profiled pile body own is larger, and need adopting sinking apparatus to squeeze into, be pressed into or shake buries, thereby all have to some extent that constructing operation inconvenience, soil disturbance are large, the construction period is relatively long during practice of construction, the sinking apparatus power that adopts is larger, construction noise is larger, and larger on the impact in all side rings border, and pile driving process control is difficult for.And castinplace pile is directly perforate on designed stake position, and places reinforcing cage behind the pore-forming in the hole, and concrete perfusion forms, and castinplace pile is different by its hole forming method, can be divided into bored pile, tube-sinking cast-in-situ pile, manually digging hole filling pile, explosive expansion castinplace pile etc.Castinplace pile have when construction friction, little without soil compaction, noise, be suitable in advantages such as City Building City Regions uses, but in the practice of construction process, owing to must carry out first drilling construction, thereby having defective and the deficiencies such as the hole quality requirement is high, the construction period is relatively long.In addition, the preformed pile that nowadays adopts and the function of castinplace pile are all comparatively single, in its pile body construction molding process and behind the construction molding, all can not provide radial pressure to all side soil bodys.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, provides that a kind of reasonable in design, input cost are low, easy construction and result of use are good, widely applicable based on the moulding stake of holing of exempting from of pressurization radially.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: comprise by injecting slurries in the hard screen casing that continues to be enclosed with laterally one deck elastic sealing film, until elastic sealing film is split and inject slurries and enter the pile body that forms behind all side soil layers; The slurries that inject are cement mortar or concrete, described hard screen casing be in advance in the inserted to play underground layer and on the sidewall with the body of a plurality of injected holes, the sealed bottom of described hard screen casing, the upper and lower end parts of described elastic sealing film seals respectively the top/bottom part that is fixed on the hard screen casing.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing is characterized in that: the cross section of described hard screen casing is circle, rectangle or regular polygon.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: the open top of described hard screen casing and its top are provided with top cover, and the middle part of described top cover is provided with the grouting port of installing for grouting pipe, and described grouting pipe and grouting equipment join.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: described hard screen casing is metal screens or pvc pipe.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: described elastic sealing film is plastic foil or rubber membrane.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: the tensile strength of described elastic sealing film is not less than 0.2MPa.
The above-mentioned moulding stake of holing of exempting from based on radially pressurizeing, it is characterized in that: the tensile strength of described elastic sealing film is 0.5MPa～25MPa.
Simultaneously, the invention also discloses the moulding pile construction method of holing of exempting from that a kind of method step is simple, realization is convenient and construction cost is low, the moulding pile quality is easy to guarantee, it is characterized in that the method may further comprise the steps:
In addition, the invention also discloses the hole application of moulding stake of a kind of reasonable in design, easy construction and good the exempting from of consolidation effect, it is characterized in that: the pile body of institute's moulding has been the antislide pile of stable side slope effect or the reinforcing pile that ground is reinforced.
Simultaneously, what the invention also discloses a kind of reasonable in design, easy construction and good seepage-proof property exempts to hole the application of moulding stake, and it is characterized in that: the quantity of the pile body of institute's moulding is a plurality of, and a plurality of described pile body forms impervious wall.
The present invention compared with prior art has the following advantages:
1, pile body structure is reasonable in design, input cost is low and the pile body Forming Quality is easy to guarantee.
2, construction method step is simple, and realization is convenient and construction cost is low.
3, adopt hard screen casing lighter weight, inserted to play is convenient, and the used time is short, and less on the impact of all side rings border in the inserted to play process, and the noise of existence is less.
4, need not to carry out in advance drilling construction, and the inserted to play position of hard screen casing is easy to guarantee.
5, the result of use of institute's moulding pile body is good, in the pile body construction molding process and behind the construction molding, can provide uniform radial pressure to all side soil bodys, after elastic sealing film is split, the slurries of hard screen casing inside flow under hydraulic action in all side soil bodys automatically, all be fastenedly connected with the need consolidated subsoil and be integrated owing to flowing to slurries in the soil body and hard straight tube, thereby further strengthened firm effect to all side soil bodys, the while also so that pile body more firmly be fixed in the soil body.
6, widely applicable and application prospect is extensive, the antislide pile that both can be used as the stable side slope effect also can be used as the reinforcing pile that ground is reinforced, and the pile body of simultaneously a plurality of continuous layings also can form the extraordinary impervious wall of anti-seepage effect.In addition, this pile body also can be used for the consolidation draining process of soft foundation, for all side soil bodys provide even and controlled radial pressure, has significantly increased discharging consolidation time and discharging consolidation efficient.
In sum, reasonable in design of the present invention, easy construction, input cost is low and result of use good, practical value is high, widely applicable, can effectively solve number of drawbacks and the deficiencies such as construction inconvenience, input cost that existing pile foundation exists are higher, the construction period is long, result of use is relatively poor.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the institute of the present invention construction molding moulding pile construction view of exempting to hole.
The job practices FB(flow block) of Fig. 2 when to be the present invention to the moulding stake of exempting to hole construct.
Description of reference numerals:
1-hard screen casing; 2-elastic sealing film; 3-top cover;
4-grouting pipe; 5-grouting equipment.
The specific embodiment
A kind of moulding stake of holing of exempting from based on radially pressurizeing as shown in Figure 1, comprise by continuing to be enclosed with laterally the hard screen casing 1 interior injection slurries of one deck elastic sealing film 2, until elastic sealing film 2 is split and inject slurries and enter the pile body that forms behind all side soil layers.The slurries that inject are cement mortar or concrete, described hard screen casing 1 be in advance in the inserted to play underground layer and on the sidewall with the body of a plurality of injected holes, the sealed bottom of described hard screen casing 1, the upper and lower end parts of described elastic sealing film 2 seals respectively the top/bottom part that is fixed on hard screen casing 1.
During practice of construction, the cross section of described hard screen casing 1 is circle, rectangle or regular polygon.
In the present embodiment, the cross section of described hard screen casing 1 is circular.During Specific construction, can be according to actual needs, the cross section of hard screen casing 1 is adjusted accordingly.
The open top of described hard screen casing 1 and its top are provided with top cover 3, and the middle part of described top cover 3 is provided with the grouting port of installing for grouting pipe 4, and described grouting pipe 4 connects with grouting equipment 5.
In the present embodiment, described hard screen casing 1 is metal screens or pvc pipe.During practice of construction, also can adopt the stereoplasm tube of other material.
In the present embodiment, described elastic sealing film 2 is plastic foil or rubber membrane.During practice of construction, also can adopt the elastic membrane of other type.
During practice of construction, the tensile strength of described elastic sealing film 2 is not less than 0.2MPa.The tensile strength of described elastic sealing film 2 is preferably 0.5MPa～25MPa.
A kind of moulding pile construction method of exempting to hole as shown in Figure 2 may further comprise the steps:
In the present embodiment, the pile body of institute's moulding has been the antislide pile of stable side slope effect or the reinforcing pile that ground is reinforced in the step 3.
In the present embodiment, hole moulding stake and job practices thereof of exempting from of adopting is all identical with embodiment 1.
In the present embodiment, as different from Example 1: the quantity of the pile body of institute's moulding is a plurality of in the step 3, and a plurality of described pile body forms impervious wall.
The above; it only is preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (10)
1. exempt from the moulding stake of holing based on pressurization radially for one kind, it is characterized in that: comprise by injecting slurries in the hard screen casing (1) that continues to be enclosed with laterally one deck elastic sealing film (2), until elastic sealing film (2) is split and inject slurries and enter the pile body that forms behind all side soil layers; The slurries that inject are cement mortar or concrete, described hard screen casing (1) be in advance in the inserted to play underground layer and on the sidewall with the body of a plurality of injected holes, the sealed bottom of described hard screen casing (1), the upper and lower end parts of described elastic sealing film (2) seals respectively the top/bottom part that is fixed on hard screen casing (1).
2. according to the moulding stake of holing of exempting from based on radially pressurizeing claimed in claim 1, it is characterized in that: the cross section of described hard screen casing (1) is circle, rectangle or regular polygon.
3. according to claim 1 or the 2 described moulding stakes of holing of exempting from based on radially pressurizeing, it is characterized in that: the open top of described hard screen casing (1) and its top are provided with top cover (3), the middle part of described top cover (3) is provided with the grouting port of installing for grouting pipe (4), and described grouting pipe (4) joins with grouting equipment (5).
4. according to claim 1 or the 2 described moulding stakes of holing of exempting from based on radially pressurizeing, it is characterized in that: described hard screen casing (1) is metal screens or pvc pipe.
5. according to claim 1 or the 2 described moulding stakes of holing of exempting from based on radially pressurizeing, it is characterized in that: described elastic sealing film (2) is plastic foil or rubber membrane.
6. according to claim 1 or the 2 described moulding stakes of holing of exempting from based on radially pressurizeing, it is characterized in that: the tensile strength of described elastic sealing film (2) is not less than 0.2MPa.
7. according to claim 1 or the 2 described moulding stakes of holing of exempting from based on radially pressurizeing, it is characterized in that: the tensile strength of described elastic sealing film (2) is 0.5MPa～25MPa.
8. moulding pile construction method of exempting from as claimed in claim 1 to hole is characterized in that the method may further comprise the steps:
Step 1, the construction of hard screen casing inserted to play: adopt pile driver that the hard screen casing (1) that the outside is enclosed with one deck elastic sealing film (2) is squeezed in the soil layer;
Step 2, slip casting: adopt described grouting equipment to inject continuously slurries in the hard screen casing (1), until after elastic sealing film (2) splits, stop slip casting;
Step 3, pile body moulding: after in step 2, injecting slurries and solidifying, just obtain the pile body of construction molding.
9. the application of the moulding stake of exempting from as claimed in claim 1 to hole, it is characterized in that: the pile body of institute's moulding has been the antislide pile of stable side slope effect or the reinforcing pile that ground is reinforced.
10. according to the application of the described moulding stake of exempting to hole of claim 1, it is characterized in that: the quantity of the pile body of institute's moulding is a plurality of, and a plurality of described pile body forms impervious wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104916605A CN102943465A (en) | 2012-11-26 | 2012-11-26 | Drilling-free forming pile based on radial pressurization and construction method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104916605A CN102943465A (en) | 2012-11-26 | 2012-11-26 | Drilling-free forming pile based on radial pressurization and construction method and application thereof |
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| CN102943465A true CN102943465A (en) | 2013-02-27 |
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| CN2012104916605A Pending CN102943465A (en) | 2012-11-26 | 2012-11-26 | Drilling-free forming pile based on radial pressurization and construction method and application thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930306A (en) * | 2017-01-16 | 2017-07-07 | 山东飞越钢结构工程有限公司 | A kind of quick no-dig technique foundation construction method of modularization |
| CN110004907A (en) * | 2019-03-27 | 2019-07-12 | 河海大学 | Miniature steel pipe pile-immersed tube sand-gravel pile joint foundation stabilization construction method and its structure |
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| JPH06200524A (en) * | 1993-01-06 | 1994-07-19 | Okabe Co Ltd | Lock anchor |
| KR20100129020A (en) * | 2009-05-29 | 2010-12-08 | 김선영 | Concrete filled steel tube construction method capable of tension |
| CN102296617A (en) * | 2010-11-11 | 2011-12-28 | 东南大学 | Post-grouting reinforcement construction method of flexible joints of diaphragm walls |
| CN102493437A (en) * | 2011-11-26 | 2012-06-13 | 山东大学 | Grouting-type micro steel pipe pile and grouting reinforcement method |
| CN102677677A (en) * | 2012-04-28 | 2012-09-19 | 邢台路桥建设总公司 | Composite injection pipe for injection-molded soil and stone composite pile foundation |
| CN202543908U (en) * | 2012-04-16 | 2012-11-21 | 上海市建工设计研究院有限公司 | Extruding and enlarging device of slip casting enlarged cast-in-situ bored pile |
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2012
- 2012-11-26 CN CN2012104916605A patent/CN102943465A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200524A (en) * | 1993-01-06 | 1994-07-19 | Okabe Co Ltd | Lock anchor |
| KR20100129020A (en) * | 2009-05-29 | 2010-12-08 | 김선영 | Concrete filled steel tube construction method capable of tension |
| CN102296617A (en) * | 2010-11-11 | 2011-12-28 | 东南大学 | Post-grouting reinforcement construction method of flexible joints of diaphragm walls |
| CN102493437A (en) * | 2011-11-26 | 2012-06-13 | 山东大学 | Grouting-type micro steel pipe pile and grouting reinforcement method |
| CN202543908U (en) * | 2012-04-16 | 2012-11-21 | 上海市建工设计研究院有限公司 | Extruding and enlarging device of slip casting enlarged cast-in-situ bored pile |
| CN102677677A (en) * | 2012-04-28 | 2012-09-19 | 邢台路桥建设总公司 | Composite injection pipe for injection-molded soil and stone composite pile foundation |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930306A (en) * | 2017-01-16 | 2017-07-07 | 山东飞越钢结构工程有限公司 | A kind of quick no-dig technique foundation construction method of modularization |
| CN110004907A (en) * | 2019-03-27 | 2019-07-12 | 河海大学 | Miniature steel pipe pile-immersed tube sand-gravel pile joint foundation stabilization construction method and its structure |
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Application publication date: 20130227 |