CN201137103Y - High bearing capacity club-footed pile suitable for high-rise building basic construction - Google Patents
High bearing capacity club-footed pile suitable for high-rise building basic construction Download PDFInfo
- Publication number
- CN201137103Y CN201137103Y CNU2007200158491U CN200720015849U CN201137103Y CN 201137103 Y CN201137103 Y CN 201137103Y CN U2007200158491 U CNU2007200158491 U CN U2007200158491U CN 200720015849 U CN200720015849 U CN 200720015849U CN 201137103 Y CN201137103 Y CN 201137103Y
- Authority
- CN
- China
- Prior art keywords
- cast
- steel pipe
- pile
- pile body
- place concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a driven prefabricated reinforced concrete belled pile adaptable to foundation engineering of high-rise buildings, which is structurally characterized in that an upper segment is equipped with a steel pipe with concrete disposed inside, a lower segment prefabricated pile body is internally provided with upper inserted reinforcements and embedded lower inserted reinforcements of a lower segment prefabricated pile body, the upper inserted reinforcements of the lower segment prefabricated pile body are inserted in the concrete of the upper segment steel pipe, the upper segment steel pipe and the lower segment prefabricated pile body are integrally connected through an upper cast-in-place concrete base, the connection position of the upper segment steel pipe and the lower segment prefabricated pile body is equipped with stabilizing reinforcements, the center of the base is coaxial with that of the pile body, the lower end of the lower segment prefabricated pile body is provided with a cast-in-place concrete base, the cross section of the upper segment steel pipe and the lower segment prefabricated pile body is circular, and the cast-in-place base is internally provided with radial reinforcements. The driven belled pile has wide application scope, obviously increases stability and utilization rate of material strength, has higher bearing capacity of a single pile, and is easy to achieve the designed expected effect.
Description
Technical field
The utility model relates to a kind of expanded bore pile for building, particularly relates to a kind of construction foundation working expanded bore pile that is applicable in the highrise building foundation engineering.
Background technology
The pile foundation engineering that is used for the high building lot of highrise building and requirement for bearing capacity at present generally adopts three kinds of ram-expanded pile, preformed pile and large diameter bored piles.Wherein the large diameter bored pile bearing capacity is the highest, but its involve great expense, work efficiency is low, and is and seriously polluted during construction; The quality of preformed pile is good, bearing capacity is also higher, but the cost of preformed pile is also high at present, generally is used for the higher building of safe class.What wherein be most widely used is ram-expanded pile, and this pile body is a cast-in-situ steel concrete, and pile crown is prefabricated; When executing, earlier the prefabricated pile crown of immersed tube is imbedded the hardpan in the ground, irritate concrete cast pile then; But because the soil property age difference that the earth's crust forms, soft foundation is soft usually with the increase of the crust layer degree of depth, hardpan is alternately state, like this when continuous piling construction, after execute stake and can produce extruding soil layer, the stake that will have influence on perfusion formerly and not solidify fully as yet, especially especially serious at the intersection of weak soil layer and hardpan, broken pile often appears, necking, thereby cause having approximately can't meet the quality requirement of tube-sinking cast-in-situ pile about 20%, force the designer to reduce the standard of bearing capacity of single pile, cause down stake to be gathered, cause soil body gross distortion, even jeopardize the quality of pile body; This another shortcoming is that bearing capacity is low, be to increase bearing capacity, the general way that adopts at the bottom of after irritating concrete cast pile body, adding companding, but because of its utilization add companding at the bottom of mode make the uncertain and standard of its shape size, its application is limited to.Though the suitable Tall Building Foundation construction that the inventor has applied for has solved the problems referred to above with the utility model patent of high-bearing capacity expanded bore pile, but find in actual use, the junction of pile body exists bearing capacity and anti-impact force is weak, the problem of steadiness difference, manipulate loaded down with trivial details, the cost height.
The utility model content
The problem that the utility model exists at prior art, and provide a kind of scope of application wide, obviously improve strength of materials utilization rate, bearing capacity of single pile is higher and reach the construction foundation working expanded bore pile of the Expected Results of design, the junction that has solved pile body exists bearing capacity and anti-impact force is weak, the problem of steadiness difference, and easy for operation, reduced cost.
The technical scheme that the utility model technical solution problem is adopted is: epimere is set to steel pipe, steel duct is provided with concrete, be provided with the last joint bar of hypomere precast pile in the hypomere precast pile and bury joint bar in advance, the last joint bar of hypomere precast pile inserts in the concrete of epimere steel pipe, by last Cast-in-place concrete base epimere steel pipe and hypomere precast pile are fused again, the internal connection of epimere steel pipe and hypomere precast pile is provided with the firm muscle of chiasma type, the lower end of hypomere precast pile is provided with the Cast-in-place concrete base, the center of Cast-in-place concrete base and Cast-in-place concrete base is coaxial with hypomere precast pile and epimere steel pipe center, the cross section of epimere steel pipe and hypomere precast pile is circular, is provided with the radiation muscle in the cast-in-situ base.
Described vertical section of going up Cast-in-place concrete base and Cast-in-place concrete base be big down little trapezoidal.
The utility model adopts the more piece pile body and expands base more than two, because the performance to the lower bottom base bearing capacity of upper bed-plate produces good influence, being provided with the performance of each section pile body frictional resistance of each base is favourable, make stake be in the state work down of economical rationality all the time, obviously improve the bearing capacity of single pile and the utilization rate of the strength of materials, strengthened steadiness, reach the Expected Results of design easily, satisfy the needs of construction work better, no matter simultaneously applied widely is high level or low-rise building, safe class and ground soil property situation can both be combined into the immersed tube prefabricated multistage under-reamed pile that is complementary with it.
Description of drawings
Fig. 1 is the main TV structure schematic diagram of a kind of suitable Tall Building Foundation construction of the utility model with expanded bore pile.
Among the figure: 1, Cast-in-place concrete base; 2, go up the Cast-in-place concrete base; 3, hypomere precast pile; 4, epimere steel pipe; 5, the following joint bar of hypomere precast pile; 8, concrete; 9, the last joint bar of hypomere precast pile; 10, bury joint bar in advance; 11, radiation muscle, 12, firm muscle.
The specific embodiment
Embodiment of the present utility model is described in detail in conjunction with the accompanying drawings, but protection domain of the present utility model is not limit by embodiment.
Embodiment one
As shown in Figure 1 be the main TV structure schematic diagram of the utility model precast pile Cast-in-place concrete base, epimere is set to steel pipe 4, inside is provided with concrete eight, be provided with the last joint bar 9 of hypomere precast pile in the hypomere precast pile 3 and bury joint bar 10 in advance, the last joint bar 9 of hypomere precast pile inserts in the concrete eight of epimere steel pipe, by last Cast-in-place concrete base 2 epimere steel pipe 4 and hypomere precast pile 3 are fused again, the internal connection of epimere steel pipe 4 and hypomere precast pile 3 is provided with the firm muscle 12 of chiasma type, the lower end of hypomere precast pile 3 is provided with Cast-in-place concrete base 1, the center of Cast-in-place concrete base 2 and Cast-in-place concrete base 1 is coaxial with hypomere precast pile 3 and epimere steel pipe 4 centers, and the cross section of epimere steel pipe 4 and hypomere precast pile 3 is circular.The vertical section of last Cast-in-place concrete base 2 and Cast-in-place concrete base 1 is down big and little trapezoidally, is provided with radiation muscle 11 in the cast-in-situ base 1.The job practices of present embodiment can be constructed according to common process.
Claims (2)
1, a kind of suitable Tall Building Foundation construction high-bearing capacity expanded bore pile, it is characterized in that it is to be made of following structure: epimere is set to steel pipe, inside is provided with concrete (8), be provided with the last joint bar (9) of hypomere precast pile in the hypomere precast pile (3) and bury joint bar (10) in advance, the last joint bar (9) of hypomere precast pile inserts in the concrete (8) of epimere steel pipe, by last Cast-in-place concrete base (2) epimere steel pipe (4) and hypomere precast pile (3) are fused again, the internal connection of epimere steel pipe (4) and hypomere precast pile (3) is provided with the firm muscle of chiasma type (12), the lower end of hypomere precast pile (3) is provided with Cast-in-place concrete base (1), the center of Cast-in-place concrete base (2) and Cast-in-place concrete base (1) is coaxial with hypomere precast pile (3) and epimere steel pipe (4) center, the cross section of epimere steel pipe (4) and hypomere precast pile (3) is circular, is provided with radiation muscle (11) in the cast-in-situ base (1).
2, the high-bearing capacity expanded bore pile use in suitable Tall Building Foundation construction according to claim 1, it is characterized in that described vertical section of going up Cast-in-place concrete base (2) and Cast-in-place concrete base (1) is greatly upward little down trapezoidal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200158491U CN201137103Y (en) | 2007-11-13 | 2007-11-13 | High bearing capacity club-footed pile suitable for high-rise building basic construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNU2007200158491U CN201137103Y (en) | 2007-11-13 | 2007-11-13 | High bearing capacity club-footed pile suitable for high-rise building basic construction |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201137103Y true CN201137103Y (en) | 2008-10-22 |
Family
ID=40037789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNU2007200158491U Expired - Fee Related CN201137103Y (en) | 2007-11-13 | 2007-11-13 | High bearing capacity club-footed pile suitable for high-rise building basic construction |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201137103Y (en) |
-
2007
- 2007-11-13 CN CNU2007200158491U patent/CN201137103Y/en not_active Expired - Fee Related
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN201137103Y (en) | High bearing capacity club-footed pile suitable for high-rise building basic construction | |
CN201137106Y (en) | High bearing capacity club-footed pile suitable for high-rise building basic construction | |
CN201087410Y (en) | Pedestal pile suitable for high-rise building foundation construction | |
CN201137105Y (en) | Club-footed pile suitable for high-rise building basic construction | |
CN201137065Y (en) | Impact force resistant pipe caisson prefabricated club-footed pile for high-rise building | |
CN201137063Y (en) | High bearing capacity pipe caisson pouring club-footed pile | |
CN201137089Y (en) | High-rise building club-footed pile | |
CN201137112Y (en) | Impact force resistant architecture base club-footed pile | |
CN201137091Y (en) | Impact force resistant architecture base club-footed pile | |
CN201121316Y (en) | High bearing ability pedestal pile suitable for high-rise building foundation construction | |
CN201137088Y (en) | Pipe caisson pouring club-footed pile | |
CN201137104Y (en) | Impact force resistant pipe caisson club-footed pile for high-rise building | |
CN201137068Y (en) | Impact force resistant pipe caisson filling pile for high-rise building | |
CN201137110Y (en) | Impact force resistant club-footed pile for high-rise building | |
CN201087400Y (en) | High bearing ability immersed tube filling pedestal pile | |
CN201089904Y (en) | High-rise building club-footed pile | |
CN201137061Y (en) | High-rise building club-footed pile | |
CN201137074Y (en) | Impact force resistant pipe caisson filling pile for building | |
CN201137062Y (en) | Pipe caisson pouring club-footed pile | |
CN201137087Y (en) | Impact force resistant pipe caisson club-footed pile for high-rise building | |
CN201137083Y (en) | High bearing capacity high-rise building club-footed pile | |
CN201137090Y (en) | Pipe caisson club-footed pile | |
CN201087349Y (en) | Anti-impact immersed tube pedestal pile suitable for high-rise building | |
CN201137075Y (en) | Pipe caisson club-footed pile | |
CN201089902Y (en) | Sink pipe perfusion club-footed pile |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20091214 |