CN108729447A - A kind of CFG stake machines and its construction method with modified bridge piece - Google Patents
A kind of CFG stake machines and its construction method with modified bridge piece Download PDFInfo
- Publication number
- CN108729447A CN108729447A CN201810787628.9A CN201810787628A CN108729447A CN 108729447 A CN108729447 A CN 108729447A CN 201810787628 A CN201810787628 A CN 201810787628A CN 108729447 A CN108729447 A CN 108729447A
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- bridge piece
- pipe
- drilling rod
- construction
- cfg
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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
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
A kind of CFG stake machines with modified bridge piece, it is related to pile machine equipment and technical field of construction, including rack, hoisting system, feeding system and construction system, rack is set to ground, hoisting system is set to rack, and construction system is connected to rack by the way that hoisting system is liftable, and feeding system is connect by feed pipe with construction system, construction system includes the power plant for being connected to hoisting system, end drilling rod, bridge piece and drilling rod core pipe with drill bit, and drilling rod core pipe is arranged in drilling rod；Bridge piece is steel pipe, including bend loss and straight pipe, and the sealing of straight pipe both ends is fixed in drilling rod core pipe stage casing, and bend loss one end is shaped in the side of straight pipe, and the bend loss other end is equipped with the interconnecting piece being connect with feed pipe.The present invention also provides a kind of, and the CFG ram machine construction methods with modified bridge piece carry out soft soil foundation piling construction.The present invention has many advantages, such as to effectively reduce mixture plugging, reduces construction cost, improves working security and quality.
Description
Technical field
The present invention relates to pile machine equipment and technical field of construction more particularly to a kind of CFG with modified bridge piece
Stake machine and its construction method.
Background technology
Along with the continuous development of the urban construction and high ferro construction in China, the theory and technology of stake work foundation construction obtains
Development, CFG（That is cement fly ash gravel pile）Composite foundation technology is since its sedimentation and deformation is small, construction is simple, low cost, holds
The advantages that power is big, applied widely is carried, was widely used to the roadbeds such as railway, highway, bridge, skyscraper, dykes and dams in recent years
In the basement process and reinforcing of engineering.It is that CFG most common piles are applied that pile, which is perfused, in long auger pump pressure in pipe mixture
Work method, this method are online piles, and not only construction efficiency is very high, and strong with low noise, mud-less pollution, penetration capacity
The advantages that.
In roadbed soft soil foundation construction CFG, when using long auger, pump pressure in pipe cement admixture bore forming,
Since in mixture mix, transportational process, inevitably there is deviation and loss, such as degree of falling loss in mixture performance, is also easy to produce and secretes
Water, isolation, workability variation etc., under pump function, often result in plugging, through statistics：With plugging at drilling rod core pipe connecting tube
Account for 80% or more.Plugging easily causes the diseases such as CFG broken piles, undergauges, while causing the waste of mixture, so that CFG pile driving construction matter
Amount is difficult to control, it is ensured that CFG pile qualities of roadbed become problem.
Invention content
The purpose of the present invention is to provide a kind of CFG stake machines and its construction method with modified bridge piece, pass through
Modified bridge piece and its construction method possessed by the CFG machine can effectively reduce mixture plugging, reduction is constructed into
This, improves working security and quality.
To realize goal of the invention, present invention employs following technical solutions：
A kind of CFG stake machines with modified bridge piece, including rack, hoisting system, feeding system and construction system, it is described
Rack is set to ground, and the hoisting system is set to the rack, and the construction system passes through the liftable company of the hoisting system
It is connected to the rack, the feeding system is connect by feed pipe with the construction system, and the construction system includes being connected to
There is drilling rod, bridge piece and the drilling rod core pipe of drill bit, the drilling rod core pipe to wear for the power plant of the hoisting system, end
In the drilling rod；The bridge piece is steel pipe, including bend loss and straight pipe, and the straight pipe both ends sealing is fixed in institute
Drilling rod core pipe stage casing is stated, described bend loss one end is shaped in the side of the straight pipe, and the bend loss other end is equipped with
The interconnecting piece being connect with the feed pipe, the bend loss top are equipped with inspection hole and the removable inspection being installed in the inspection hole
Look into lid, it is removable in the inspection cover to be equipped with distance-transmission pressure gauge.
As a preference of the present invention, the bend loss axis line track is in half elliptic.
As a preference of the present invention, the ellipse short shaft radius of the bend loss axis is 30cm.
As a preference of the present invention, the straight pipe both ends are equipped with sealing flange.
As a preference of the present invention, the interconnecting piece end is sealing flange.
As a preference of the present invention, the straight pipe internal-and external diameter is equal with the drilling rod core pipe internal-and external diameter.
As a preference of the present invention, the feeding system include by the feed pipe backward sequentially connected concrete pump,
Chute and blender.
As a preference of the present invention, the blender installation position is higher than the concrete pump horizontal position.
As a preference of the present invention, the feed pipe includes the high tensile flexible pipe being connect with the bend loss and is mixed with described
The rigid pipe of solidifying soil pump connection, the high tensile flexible pipe and the rigid pipe are tightly connected.
The present invention also provides a kind of CFG ram machine construction methods with modified bridge piece, utilize above-mentioned one kind
CFG stake machines with modified bridge piece carry out soft soil foundation piling construction, include the following steps：
Step S1：CFG machines are installed according to construction field geology landform addressing, make the bridge piece, pipeline installation；
Step S2：Examination assembly is carried out to the bridge piece, the feed pipe and the drilling rod core pipe, detects the bridge piece
With the inner wall geometric tolerance of the feed pipe, the leakproofness of the bridge piece, the feed pipe and the drilling rod core pipe is examined,
If there is problem above, it is modified；
Step S3：The bridge piece in-site installation；
Step S4：The bridge piece opens up the inspection hole after installation is complete at its peak, divides in the inspection hole
The inspection cover and the distance-transmission pressure gauge are not installed, and check air-tightness in the bridge piece；
Step S5：The feeding system produces mixture, and power plant described in the construction system drives the drilling rod and institute
Drill bit is stated in construction ground pore-forming to designing pile length；
Step S6：After the completion of pore-forming, the construction system carries brill and concedes, and the feeding system synchronizes mixture-pumping from the brill
Stake holes is injected in bar core pipe, meanwhile, by the pumping pressure and unit interval feed quantity of the feeding system, determines and adjust institute
State the speed that construction system promotes the drilling rod so that feed quantity is lifted the stake holes spatial volume conceded with drilling rod in the unit interval
It is identical；
Step S7：After the completion of material feeding, telephone-moving, repetition step S- repeat to construct.
The beneficial effects of the present invention are：
1, the bridge piece stable structure, mechanical property of steel are good, pile mixture by, pressurization when shape it is steady
It is fixed, ensure the stability of stake machine feed；
2, make under gravity can effectively voluntarily by the mixture of bend pipe for the bend loss axis designs of half elliptic
It falls off, avoids plugging when insufficient pressure, when being further reduced material feeding pile the problems such as broken pile, undergauge；
3, inspection hole and inspection cover and distance-transmission pressure gauge are equipped with so that while having pressure monitoring, pipeline examination, letting out
The functions such as pressure maintenance, it is more simplified in structure, cost is reduced, system stability is improved；
4, each element connection sealing effect is good in mixture charging transmission process, and mixture pressure will not lose, and will not reveal.
5, in construction method, the mixture of the stabilization provided by bridge piece conveys so that feed quantity can quantify
It calculates, synchronizes isometric mixture perfusion when pore-forming shadoof to realize, the perfusion to ensure pile body is closely knit, does not break
Stake, undergauge, while overfeeding also being avoided to cause to be compacted and plugging in pipe.
Description of the drawings
Fig. 1 is the transversary schematic diagram of stake machine of the present invention；
Fig. 2 is the structural schematic diagram of traditional bend pipe in the prior art；
Fig. 3 is the structural schematic diagram of the modified bridge piece of the present invention；
Items are respectively in figure：1 rack, 2 hoisting systems, 3 feeding systems, 31 feed pipes, 311 high tensile flexible pipes, 312 rigidity
Pipe, 32 concrete pumps, 33 chutes, 34 blenders, 4 construction systems, 41 power plants, 42 drilling rods, 43 drill bits, 44 drilling rod core pipes, 5
Bridge piece, 51 bend loss, 511 interconnecting pieces, 52 straight pipes, 521 sealing flanges, 53 inspection holes, 54 inspection covers, 55 teletransmissions
Pressure gauge.
Specific implementation mode
Below in conjunction with attached drawing, the present invention will be described in detail：
Embodiment one
A kind of CFG stake machines with modified bridge piece 5 as shown in Figure 1, including rack 1, hoisting system 2, feeding system 3
With construction system 4, rack 1 is arranged by adjustable support leg on ground and L-shaped, also passes through bolt in the side of L-type rack 1
It is fixed with bracing piece.Hoisting system 2 includes the hoist engine being set in rack 1, and hoist engine passes through the steel cable realization across pulley blocks
Lifting to construction system.Construction system 4 is connected to rack 1 by the way that hoisting system 2 is liftable.Feeding system 3 passes through charging
Pipe 31 is connect with construction system 4, and construction system 4 includes the power plant 41 for being connected to hoisting system 2, end with drill bit 43
Drilling rod 42, the removable lower section for being fixed in power plant 41 in 42 upper end of drilling rod, bridge piece 5 and drilling rod core pipe 44, drilling rod core pipe 44
It is arranged in drilling rod 42 and the upper end is stretched out from drilling rod 42 upwards to connect above-mentioned bridge piece 45；Bridge piece 5 is steel pipe,
Including bend loss 51 and straight pipe 52, the sealing of 52 both ends of straight pipe is fixed in 44 stage casing of drilling rod core pipe, 51 one end of bend loss one
The side of straight pipe 52 is taken shape in, because at bridge piece 5, the mixture of pile rises to from compression oblique enters bend loss
51 to drilling rod core pipe 44 is entered in straight pipe 52, and stress, force direction variation are fast, complicated, are integrally formed so that bridge piece 5
For a stable entirety, job stability and anti-leak result when construction are improved.51 other end of bend loss be equipped with into
The interconnecting piece 511 that expects pipe 31 connects.
In the present embodiment, feeding system includes sequentially connected concrete pump 32, chute 33 and being stirred backward by feed pipe 31
Machine 34 is mixed, 34 installation position of blender is higher than 32 horizontal position of concrete pump, i.e. chute 33 connects blender 34 with an inclination angle
With concrete pump 32, after the completion of the process of stock blend carries out in blender 34, mixture can under gravity directly
It is fallen in concrete pump 32 by chute 33, reduces the equipment and the energy needed for raw material transport, save construction cost.Feed pipe 31
Include the high tensile flexible pipe 311 being connect with bend loss 51 and the rigid pipe 312 being connect with concrete pump 32, high tensile flexible pipe 311
It is tightly connected with rigid pipe 312, rigid pipe 312 has many advantages, such as intensity height, wear-resistant, by rigid pipe 312 that concrete is defeated
It send to the pipe fitting loss that can be reduced at rack in mixture conveying, reduces maintenance cost and replacement cost, while in rigid pipe
Mixture is delivered to construction system 4 by 312 end by the high tensile flexible pipe 311 of sealed connection, and characteristic flexible is convenient for
Connection installation, while its intensity ensures that it is hardly damaged.
As shown in Figure 2,3, in the present embodiment, 51 axis line track of bend loss is in half elliptic.Compared to CFG traditional in Fig. 2
Stake machine bridge piece, it is in downward curve shape rather than horizontal connection to have with 44 junction of drilling rod core pipe, in mixture
Straight pipe 52 can be dropped downward under gravity after ascending into bend loss 51 and eventually enters into drilling rod core pipe 44, therefore not
It will appear in traditional bridge piece in horizontal segment because the siltation deposition of mixture occurs in the problems such as insufficient pressure, interruption, ensure to supply
Construction quality has been effectively ensured the problems such as avoiding because of generation broken pile under feeding, undergauge in the stabilization of doses and feeding speed.
Meanwhile the ellipse short shaft radius of 51 axis of bend loss is 30cm, which is the reasonable curvature obtained by empirical formula
Radius, on the one hand manufacture easy to process, is on the other hand convenient for passing through for mixture.
In the present embodiment, 52 both ends of straight pipe are equipped with sealing flange 521.So that straight pipe 52 passes through with drilling rod core pipe 44
Sealing flange 521 realizes the face connection stablized, sealed.Meanwhile 511 end of interconnecting piece also be sealing flange 521, for
Connecting tube 31 realizes effective sealed connection, while connecting with other pipe fittings and all being realized so that connecting bending by sealing flange 521
The manufacturing of pipe 5 more standardizes and simplicity.
In the present embodiment, 52 internal-and external diameter of straight pipe is equal with 44 internal-and external diameter of drilling rod core pipe.After mounting, straight pipe 52 and brill
The internal diameter of bar core pipe 44 is identical, the change of conveying capacity will not occurs because of the variation of caliber in mixture conveying, ensure construction
Stablize.
In the present embodiment, 51 top of bend loss is equipped with inspection hole 53 and seals the removable inspection cover being installed in inspection hole 53
54。
In the present embodiment, distance-transmission pressure gauge 55 is equipped with by the way that screw thread is removable in inspection cover 54.It can by distance-transmission pressure gauge 55
Even if easily to monitor the pressure state in bridge piece 5 consequently facilitating the progress of construction personnel adjusts maintenance accordingly.
Embodiment two
The present embodiment provides a kind of CFG ram machine construction methods with modified bridge piece, utilize institute in above-described embodiment one
A kind of CFG stake machines with modified bridge piece stated carry out soft soil foundation piling construction, include the following steps：
Step S1：CFG machines are installed according to construction field geology landform addressing, make bridge piece 5, pipeline installation, are being installed
It is subject to construction site landform when laying, is laid with optimal charging conveying and cost control.
Step S2：Examination assembly is carried out to bridge piece 5, feed pipe 31 and drilling rod core pipe 44, detects bridge piece 5 and charging
The inner wall geometric tolerance of pipe 31 examines the leakproofness of bridge piece 5, feed pipe 31 and drilling rod core pipe 44, such as there is problem above,
Be modified, to ensure sealing, stablizing for charging, while meet in embodiment one 52 internal-and external diameter of straight pipe in drilling rod core pipe 44
The equal requirement of outer diameter.
Step S3：5 in-site installation of bridge piece.
Step S4：Bridge piece 5 opens up inspection hole 53 after installation is complete at its peak, pacifies respectively in inspection hole 53
Fill inspection cover 54 and distance-transmission pressure gauge 55, and check air-tightness in bridge piece 5, prevent air enter cause to mix when feed into
Air.
Step S5：Feeding system 3 produces mixture, and power plant 41 drives drilling rod 42 and drill bit 43 to exist in construction system 4
Construction ground pore-forming is to designing pile length.
Step S6：After the completion of pore-forming, the hoist engine of hoisting system 2 winds steel cable, and construction system 4 is carried brill and is conceded, simultaneously
The concrete pump 32 of feeding system 3 synchronizes mixture-pumping and injects stake holes from drilling rod core pipe 44, meanwhile, pass through distance-transmission pressure gauge
The pumping pressure and unit interval feed quantity for the feeding system 3 that 55 detections obtain determine and adjust the promotion drilling rod 42 of construction system 4
Speed so that the stake holes spatial volume that the lifting of feed quantity and drilling rod is conceded in the unit interval is identical, i.e., in the per unit time
The volume that lifting drilling rod 42 is vacated has the mixture of same volume to inject.
Step S7：After the completion of material feeding, telephone-moving, repetition step S3-6 repeat to construct, until the CFG of entire construction site
Pile driving construction is completed.
Above example is only described the preferred embodiment of the present invention, not to the spirit and scope of the present invention
It is defined, under the premise of not departing from design concept of the present invention, ordinary people in the field makes technical scheme of the present invention
All variations and modifications, each fall within protection scope of the present invention, the claimed technology contents of the present invention, whole note
It carries in detail in the claims.
Claims (10)
1. a kind of CFG stake machines with modified bridge piece, including rack（1）, hoisting system（2）, feeding system（3）With apply
Work system（4）, the rack（1）Set on ground, the hoisting system（2）Set on the rack（1）, the construction system（4）
Pass through the hoisting system（2）It is liftable to be connected to the rack（1）, the feeding system（3）Pass through feed pipe（31）With
The construction system（4）Connection, which is characterized in that the construction system（4）Including being connected to the hoisting system（2）Power
Device（41）, end have drill bit（43）Drilling rod（42）, bridge piece（5）With drilling rod core pipe（44）, the drilling rod core pipe
（44）It is arranged in the drilling rod（42）In；The bridge piece（5）For steel pipe, including bend loss（51）And straight pipe（52）, institute
State straight pipe（52）Both ends sealing is fixed in the drilling rod core pipe（44）Stage casing, the bend loss（51）One end is shaped in institute
State straight pipe（52）Side, the bend loss（51）The other end is equipped with and the feed pipe（31）The interconnecting piece of connection（511）,
The bend loss（51）Top is equipped with inspection hole（53）It is installed on the inspection hole with removable（53）On inspection cover（54）, described
Inspection cover（54）It is interior removable equipped with distance-transmission pressure gauge（55）.
2. a kind of CFG stake machines with modified bridge piece according to claim 1, which is characterized in that the bend pipe
Section（51）Axis line track is in half elliptic.
3. a kind of CFG stake machines with modified bridge piece according to claim 2, which is characterized in that the bend pipe
Section（51）The ellipse short shaft radius of axis is 30cm.
4. a kind of CFG stake machines with modified bridge piece according to claim 1, which is characterized in that the straight tube
Section（52）Both ends are equipped with sealing flange（521）.
5. a kind of CFG stake machines with modified bridge piece according to claim 1, which is characterized in that the connection
Portion（511）End is sealing flange（521）.
6. a kind of CFG stake machines with modified bridge piece according to claim 1, which is characterized in that the straight tube
Section（52）Internal-and external diameter and the drilling rod core pipe（44）Internal-and external diameter is equal.
7. a kind of CFG stake machines with modified bridge piece according to claim 1, which is characterized in that the feed
System includes by the feed pipe（31）Sequentially connected concrete pump backward（32）, chute（33）And blender（34）.
8. a kind of CFG stake machines with modified bridge piece according to claim 7, which is characterized in that the stirring
Machine（34）Installation position is higher than the concrete pump（32）Horizontal position.
9. a kind of CFG stake machines with modified bridge piece according to claim 8, which is characterized in that the charging
Pipe（31）Including with the bend loss（51）The high tensile flexible pipe of connection（311）With with the concrete pump（32）The rigidity of connection
Pipe（312）, the high tensile flexible pipe（311）With the rigid pipe（312）It is tightly connected.
10. a kind of CFG ram machine construction methods with modified bridge piece, described in any in the claims 1 to 9
A kind of CFG stake machines with modified bridge piece carry out soft soil foundation piling construction, which is characterized in that including following step
Suddenly：
Step S1：CFG machines are installed according to construction field geology landform addressing, make the bridge piece（5）, pipeline installation；
Step S2：To the bridge piece（5）, the feed pipe（31）With the drilling rod core pipe（44）It is assembled to carry out examination, detection
The bridge piece（5）With the feed pipe（31）Inner wall geometric tolerance, examine the bridge piece（5）, the feed pipe
（31）With the drilling rod core pipe（44）Leakproofness, such as there is problem above, be modified；
Step S3：The bridge piece（5）In-site installation；
Step S4：The bridge piece（5）The inspection hole is opened up after installation is complete at its peak（53）, in the inspection
Hole（53）It is upper that the inspection cover is installed respectively（54）With the distance-transmission pressure gauge（55）, and check the bridge piece（5）Interior gas
Close property；
Step S5：The feeding system（3）Produce mixture, the construction system（4）Described in power plant（41）Drive institute
State drilling rod（42）With the drill bit（43）In construction ground pore-forming to designing pile length；
Step S6：After the completion of pore-forming, the construction system（4）It carries brill to concede, the feeding system（3）Synchronous mixture-pumping from
The drilling rod core pipe（44）Middle injection stake holes, meanwhile, pass through the feeding system（3）Pumping pressure and the unit interval feed
Amount determines and adjusts the construction system（4）Promote the drilling rod（42）Speed so that feed quantity and drilling rod in the unit interval
It is identical to be lifted the stake holes spatial volume conceded；
Step S7：After the completion of material feeding, telephone-moving, repetition step S3-6 repeat to construct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810787628.9A CN108729447A (en) | 2018-07-18 | 2018-07-18 | A kind of CFG stake machines and its construction method with modified bridge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810787628.9A CN108729447A (en) | 2018-07-18 | 2018-07-18 | A kind of CFG stake machines and its construction method with modified bridge piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108729447A true CN108729447A (en) | 2018-11-02 |
Family
ID=63926494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810787628.9A Pending CN108729447A (en) | 2018-07-18 | 2018-07-18 | A kind of CFG stake machines and its construction method with modified bridge piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108729447A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040037652A1 (en) * | 2002-08-21 | 2004-02-26 | Ludwig Schmidmaier | Boring appliance |
| CN208815532U (en) * | 2018-07-18 | 2019-05-03 | 中铁十六局集团第三工程有限公司 | A kind of CFG stake machine with modified bridge piece |
-
2018
- 2018-07-18 CN CN201810787628.9A patent/CN108729447A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040037652A1 (en) * | 2002-08-21 | 2004-02-26 | Ludwig Schmidmaier | Boring appliance |
| CN208815532U (en) * | 2018-07-18 | 2019-05-03 | 中铁十六局集团第三工程有限公司 | A kind of CFG stake machine with modified bridge piece |
Non-Patent Citations (1)
| Title |
|---|
| 冯玉国: "长螺旋钻管内泵压CFG桩成桩工艺混合料堵管的原因及预防措施", 地质装备, no. 01, pages 3 - 8 * |
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