CN108104114A - Churning compacted compound pile construction method again - Google Patents
Churning compacted compound pile construction method again Download PDFInfo
- Publication number
- CN108104114A CN108104114A CN201810050018.0A CN201810050018A CN108104114A CN 108104114 A CN108104114 A CN 108104114A CN 201810050018 A CN201810050018 A CN 201810050018A CN 108104114 A CN108104114 A CN 108104114A
- Authority
- CN
- China
- Prior art keywords
- churning
- drilling tool
- stake
- drilling
- compacted
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- 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
Landscapes
- 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)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
A kind of churning compacted compound pile construction method again is provided, drilling tool normally creeps into form straight-through cylindricality stake holes according to design requirement, the dryness filler less than ground level is inserted in stake holes, dryness filler mixes with slurries and drilling tool is subject to be bonded after squeezing with retaining wall after secondary pressurized drilling while churning slurries, drilling tool is just turning linked to while screw thread is promoted and is carrying out filling concrete, implanted reinforced bar cage in concrete in the backward stake holes of full stake, form composite pile, so that reduction stake is long in the case that identical structure size leads directly to the bearing capacity enhancing of cylindricality stake or same bearer power, so as to reduce cost, improve economic well-being of workers and staff.The bearing capacity of raising.
Description
Technical field
The invention belongs to building foundation technical fields, and in particular to a kind of churning compacted compound pile construction method again.
Background technology
With the scale development of construction industry, modern architecture requirement is efficiently quick, in based process technical aspect, also needs
More reliable and quick construction technology and method.And existing piling construction is generally using the squeezed screw thread construction method that spins, this side
Method is also the ripe stake method of current application, but what this stake method formed is straight-through cylindricality stake, and it is small to be combined power with stratum, accordingly
Bearing capacity is also small, in conclusion how on the basis of straight-through cylindricality stake, the combination power on raising and stratum, so as to improve pile body
Bearing capacity, for this problem, it is necessary to be improved.
The content of the invention
Present invention solves the technical problem that：A kind of churning compacted compound pile construction method again is provided, by straight-through cylindricality stake
Inside insert dryness filler, and carry out secondary pressurized drilling it is compacted after so that identical structure size lead directly to cylindricality stake bearing capacity increase
It is long to reduce stake in the case of strong or same bearer power, so as to reduce cost, improves economic well-being of workers and staff.The bearing capacity of raising.
The technical solution adopted by the present invention：Churning compacted compound pile construction method again, comprises the following steps：
1) suitable bearing formation is selected, according to the design diameter of stake holes and projected depth h, selects suitable large torque spiral shell
Rotary drill adds the churning mechanism of pressure-adjustable into stake machine on the drilling tool equipped with compacted function and drilling tool on Auger drilling stake machine；
2) Auger drilling stake machine is in place, is normally crept into stake holes depth on the bearing formation chosen using Auger drilling stake machine
It spends to stop drilling after h1；
3) drilling tool carries brill, and drilling tool is when carrying brill according to soil layer situation, churning mechanism high-pressure rotary-spray cutting thread or low pressure slurry
Liquid retaining wall, after drilling tool carries brill, the upper plane that the dryness filler being stirred and dryness filler are inserted into stake holes is less than Horizon
Face h2；
4) drilling tool is secondary enters stake holes and starts pressing mechanism, and after reaching certain pressure, drilling tool is pressed directly into certain depth,
Then secondary compaction drilling is axially downwardly carried out along stake holes, drilling tool churning slurries while compacted drilling make dry in stake holes
Property filler and retaining wall bond, and the compacted drilling of drilling tool makes to be partially submerged into rock-soil layer while dryness filler is compacted, drilling tool to
Under compacted drilling to after composite log depth h1, drilling tool continues to stop after being drilled down into projected depth h through composite log；
5) by normal perfusion stake technique, drilling tool is just turning linked to screw thread promotion, filling concrete is carried out at the same time, when concrete is filled
After stake holes, implanted reinforced bar cage in the concrete into stake holes forms composite pile.
Above-mentioned steps 1) in, high-pressure injection pump and mating pulping device, institute are further included on the large torque stake machine
High-pressure injection pump is stated to be equipped with to show the pressure gauge of mixed serum pressure and can protect by the high-pressure injection pump of frequency control
Demonstrate,prove the uniformity of slurries mixing.
Above-mentioned steps 2) in, the depth of the h1 is at least 0.5h
Above-mentioned steps 3) in, the dryness filler is building waste or is cement, the mixture that sand adds stone in water and riverbed,
Sand adds that stone grain size is 5~8cm in stone and stone content is 30-60% in the riverbed,
Above-mentioned steps 3) in, the pressure limit of slurries is 10-15MPa when churning mechanism high-pressure rotary-spray cuts thread,
The pressure limit of slurries during the churning mechanism churning low pressure slurries retaining wall is 2-5MPa, and the upper plane of the dryness filler is low
In ground level h2 and h2≤1m.
Above-mentioned steps 5) in, the composite pile and the semidiameter t for filling concrete after stake holes are 100mm-120mm..
The present invention compared with prior art the advantages of：
1st, the technical program inserts dryness filler in conventional straight-through cylindricality stake holes, passes through the compacted drilling of secondary pressurized
Meanwhile dryness filler is mixed with churning slurries, the dryness filler be conducive in stake holes is bonded with retaining wall, and the compacted drilling of drilling tool makes
Dryness filler is partially submerged into while compacted in rock-soil layer, is conducive to improve the bearing capacity of stake；
2nd, the composite pile that the technical program is formed substantially increases the bearing capacity of straight-through cylindricality stake, in same bearer power
In the case of, reduce the length and construction cost of stake；
Description of the drawings
Fig. 1 is normal piling structure schematic diagram in the present invention；
Fig. 2 is to insert the structure diagram after dryness filler in stake holes of the present invention；
Fig. 3 is structure diagram when inventing compacted；
Fig. 4 is the compacted structure diagram through after composite log of the present invention；
Fig. 5 is the structure diagram that drilling tool of the present invention is just turning linked to concrete perfusion while screw thread is promoted；
Fig. 6 is the structure diagram of composite pile of the present invention.
Specific embodiment
A kind of embodiment of the 1-6 descriptions present invention below in conjunction with the accompanying drawings.
Churning compacted compound pile construction method again, comprises the following steps：
1) suitable bearing formation is selected, according to the design diameter of stake holes 2 and projected depth h, selects suitable large torque
Auger drilling stake machine adds the rotary jetting apparatus of pressure-adjustable on Auger drilling stake machine on the drilling tool 1 equipped with compacted function and drilling tool 1
Structure, specifically, further including high-pressure injection pump and mating pulping device, the high-pressure injection pump on the large torque stake machine
It is equipped with to show the pressure gauge of mixed serum pressure and can ensure what slurries mixed by the high-pressure injection pump of frequency control
Uniformity；
2) Auger drilling stake machine is in place, is normally crept into stake holes 2 on the bearing formation chosen using Auger drilling stake machine
Depth stops drilling after being h1, specifically, the depth of the h1 is at least 0.5h；
3) drilling tool 1 carries brill, and drilling tool 1 is when carrying brill according to soil layer situation, churning mechanism high-pressure rotary-spray cutting thread or low pressure
Slurries retaining wall, after drilling tool 1 carries brill, the upper plane that the dryness filler 3 being stirred and dryness filler 3 are inserted into stake holes 2 is low
In ground level h2, specifically, the dryness filler is building waste or is cement, the mixture that sand adds stone in water and riverbed, institute
It states sand in riverbed and adds in stone that stone grain size is 5~8cm and stone content is 30-60%, sand adds Shi Zhongjia in every cubic metre of riverbed
Marked as 32.5 cement 50-80kg mixing after formed dryness filler and 3 and dryness filler 3 moisture content below 20%；Tool
Body, the pressure limit of slurries is 10-15MPa during churning mechanism high-pressure rotary-spray cutting thread, churning mechanism churning
The pressure limit of slurries during low pressure slurries retaining wall is 2-5MPa, and the upper plane of the dryness filler 3 is less than ground level h2 and h2
≤1m；
4) drilling tool 1 two times into stake holes 2 and starts pressing mechanism, and after reaching certain pressure, drilling tool 1 is pressed directly into a depthkeeping
Degree, then axially downwardly carries out secondary compaction drilling, churning slurries while compacted drilling of drilling tool 1 make stake holes 2 along stake holes 2
Interior dryness filler 3 is bonded with retaining wall, and the compacted drilling of drilling tool 1 makes to be partially submerged into rock-soil layer while dryness filler 3 is compacted
In, drilling tool 1 is compacted downwards to creep into composite log depth h1, and drilling tool 1 continues to be drilled down into projected depth h through composite log
Stop；
5) by normal perfusion stake technique, drilling tool 1 is just turning linked to screw thread promotion, is carried out at the same time concrete 4 and is perfused, when concrete 4
After filling stake holes 2, implanted reinforced bar cage in the concrete 4 into stake holes 2 forms composite pile 5, specifically, the composite pile 5 is with filling
The semidiameter t of concrete 4 is 100mm-120mm after full stake holes 2.
High-pressure injection pump in the technical program is frequency control, and the pressure of internal mix rear slurry is shown by pressure gauge
Show, targetedly control operating pressure, pulping equipment continuous firing is only short when needing slip casting to ensure that slurries are uniformly mixed
Period rests, and the composite pile 5 of formation and fills the semidiameter t of concrete 4 after stake holes 2 for 100mm-120mm, this construction method is main
It is used in loess formation, sandy gravel stratum；During using this construction method, the softer stratum of soil layer is run into, when carrying out above-mentioned steps 4, due to
Soil layer is softer, and drilling tool 1 can also complete compound pile driving construction in compacted drilling, without churning slurries are carried out.
Above-described embodiment, simply presently preferred embodiments of the present invention, is not used for limiting the scope of the present invention, therefore all with this
The equivalence changes that content described in invention claim is done should all be included within scope of the invention as claimed.
Claims (6)
1. churning compacted compound pile construction method again, it is characterised in that comprise the following steps：
1) suitable bearing formation is selected, according to the design diameter of stake holes (2) and projected depth h, selects suitable large torque spiral shell
Rotary drill adds the rotary jetting apparatus of pressure-adjustable into stake machine on the drilling tool (1) equipped with compacted function and drilling tool (1) on Auger drilling stake machine
Structure；
2) Auger drilling stake machine is in place, is normally crept into stake holes (2) deeply on the bearing formation chosen using Auger drilling stake machine
It spends to stop drilling after h1；
3) drilling tool (1) carries brill, and drilling tool (1) is when carrying brill according to soil layer situation, churning mechanism high-pressure rotary-spray cutting thread or low pressure
Slurries retaining wall, after drilling tool (1) carries brill, to inserting the dryness filler (3) being stirred and dryness filler (3) in stake holes (2)
Upper plane is less than ground level h2；
4) drilling tool (1) is secondary enters stake holes (2) and starts pressing mechanism, and after reaching certain pressure, drilling tool (1) is pressed directly into centainly
Depth, then axially downwardly carries out secondary compaction drilling along stake holes (2), and drilling tool (1) churning slurries while compacted drilling make
Dryness filler (3) in stake holes (2) is bonded with retaining wall, and portion while the compacted drilling of drilling tool (1) makes dryness filler (3) compacted
Divide in embedded rock-soil layer, drilling tool (1) is compacted downwards to creep into composite log depth h1, and drilling tool (1) is downward through composite log continuation
Stop after creeping into projected depth h；
5) by normal perfusion stake technique, drilling tool (1) is just turning linked to screw thread promotion, is carried out at the same time concrete (4) perfusion, works as concrete
(4) after filling stake holes (2), implanted reinforced bar cage in the concrete (4) into stake holes (2) forms composite pile (5).
2. churning according to claim 1 compacted compound pile construction method again, it is characterised in that：Above-mentioned steps 1) in, it is described
High-pressure injection pump and mating pulping device are further included on large torque stake machine, the high-pressure injection pump is equipped with to show
The pressure gauge of mixed serum pressure and the uniformity that slurries mix can be ensured by the high-pressure injection pump of frequency control.
3. churning according to claim 1 compacted compound pile construction method again, it is characterised in that：Above-mentioned steps 2) in, it is described
The depth of h1 is at least 0.5h.
4. churning according to claim 1 compacted compound pile construction method again, it is characterised in that：Above-mentioned steps 3) in, it is described
Dryness filler (3) is building waste or is cement, the mixture that sand adds stone in water and riverbed, and sand adds stone in stone in the riverbed
Grain size is 5~8cm and stone content is 30-60%.
5. churning according to claim 1 compacted compound pile construction method again, it is characterised in that：Above-mentioned steps 3) in, it is described
The pressure limit of slurries is 10-15MPa during churning mechanism high-pressure rotary-spray cutting thread, the churning mechanism churning low pressure slurries shield
The pressure limit of slurries during wall is 2-5MPa, and the upper plane of the dryness filler (3) is less than ground level h2 and h2≤1m.
6. churning according to claim 1 compacted compound pile construction method again, it is characterised in that：Above-mentioned steps 5) in, it is described
Composite pile (5) and fill stake holes (2) afterwards concrete (4) semidiameter t be 100mm-120mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050018.0A CN108104114A (en) | 2018-01-18 | 2018-01-18 | Churning compacted compound pile construction method again |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810050018.0A CN108104114A (en) | 2018-01-18 | 2018-01-18 | Churning compacted compound pile construction method again |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108104114A true CN108104114A (en) | 2018-06-01 |
Family
ID=62220169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810050018.0A Pending CN108104114A (en) | 2018-01-18 | 2018-01-18 | Churning compacted compound pile construction method again |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108104114A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921958A (en) * | 2021-01-29 | 2021-06-08 | 徐州八方建筑工程有限公司 | High-pressure jet grouting hole-leading static pressure pile construction method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108524A (en) * | 1979-01-08 | 1980-08-20 | Tousen Concrete Kogyo Kk | Method for tip treatment of pile |
| JPH04336115A (en) * | 1991-05-10 | 1992-11-24 | Takenaka Komuten Co Ltd | Executing method for cast-in-place concrete pile |
| CN101603311A (en) * | 2009-07-02 | 2009-12-16 | 北京建材地质工程公司 | The adopting heavy hammer-tamping compaction soil preformed hole jet grouting pile construction method |
| CN103422496A (en) * | 2012-05-22 | 2013-12-04 | 王庆伟 | Rotary jet grouting expanding spiral soil-squeezing combined cast-in-place pile and pile forming method thereof |
| CN104947660A (en) * | 2015-07-03 | 2015-09-30 | 陕西桩鑫建设工程有限公司 | Reverse screw spike pile and construction method thereof |
| CN105484230A (en) * | 2016-01-18 | 2016-04-13 | 邓亚光 | Pile and soil concreted and integrated composite pile and construction method thereof |
| CN206396745U (en) * | 2017-01-17 | 2017-08-11 | 陕西隆极机械设备有限公司 | Long spire stake machine with the Counterboring apparatus that spins |
-
2018
- 2018-01-18 CN CN201810050018.0A patent/CN108104114A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55108524A (en) * | 1979-01-08 | 1980-08-20 | Tousen Concrete Kogyo Kk | Method for tip treatment of pile |
| JPH04336115A (en) * | 1991-05-10 | 1992-11-24 | Takenaka Komuten Co Ltd | Executing method for cast-in-place concrete pile |
| CN101603311A (en) * | 2009-07-02 | 2009-12-16 | 北京建材地质工程公司 | The adopting heavy hammer-tamping compaction soil preformed hole jet grouting pile construction method |
| CN103422496A (en) * | 2012-05-22 | 2013-12-04 | 王庆伟 | Rotary jet grouting expanding spiral soil-squeezing combined cast-in-place pile and pile forming method thereof |
| CN104947660A (en) * | 2015-07-03 | 2015-09-30 | 陕西桩鑫建设工程有限公司 | Reverse screw spike pile and construction method thereof |
| CN105484230A (en) * | 2016-01-18 | 2016-04-13 | 邓亚光 | Pile and soil concreted and integrated composite pile and construction method thereof |
| CN206396745U (en) * | 2017-01-17 | 2017-08-11 | 陕西隆极机械设备有限公司 | Long spire stake machine with the Counterboring apparatus that spins |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921958A (en) * | 2021-01-29 | 2021-06-08 | 徐州八方建筑工程有限公司 | High-pressure jet grouting hole-leading static pressure pile construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105887837B (en) | A kind of construction method of field ground stirring concrete earth pile | |
| CN105113498A (en) | Method for constructing high-strength core composite piles | |
| CN101487254A (en) | Construction method of vibrating immersed tube gravel slip-casting pile | |
| CN102182468B (en) | Method and device for solidifying water-filling cracking surrounding rocks of tunnel by adopting high-pressure air water-dispelling grouting | |
| CN106869120A (en) | One kind carbonization mixing pile ventilative pipe pile composite foundation and its construction method | |
| CN102011399A (en) | PHC pile-based multiple high jet pedestal pile construction method | |
| CN104762957B (en) | A kind of spiral pore-forming rams the construction method that expands CFG stake | |
| CN111519618A (en) | Post-grouting device for prestressed pipe pile and construction method thereof | |
| CN107806096B (en) | Expanding compound pile construction method compacted again is cut in whirl spraying | |
| CN107964946A (en) | The construction method of stiff composite pile based on pump drainage water precipitation | |
| CN208201874U (en) | A kind of open-cell cloth bag grouting structure | |
| CN107916663B (en) | Construction method for soft soil foundation | |
| CN108104114A (en) | Churning compacted compound pile construction method again | |
| CN112081158B (en) | Construction method for forming reinforced composite pile foundation by advanced grouting of high-rise building | |
| CN204728318U (en) | Long auger cement paste dado formula implants the construction equipment of pile tube | |
| CN110344402A (en) | The construction method of curing agent processing stake holes sky pile cutoff mud | |
| CN106192987A (en) | A kind of construction method that stake periphery is crushed geology reinforcing | |
| CN109881696A (en) | A kind of HPPG back cover construction method | |
| CN116024963A (en) | Low-slurry-returning high-pressure rotary spraying composite grouting method and equipment | |
| CN105221150B (en) | A kind of method of horizontal jet grouting stake reinforced stone door punching coal | |
| CN108221948A (en) | A kind of method for processing foundation | |
| CN211395636U (en) | Slip casting ventilation combined treatment system | |
| CN100363562C (en) | Preventing plate with spreading and deep layer rotating spraying mixture head with diffusion preventing plate and guniting mouth | |
| CN102979095A (en) | Method for constructing triaxial cement-soil mixing piles in ultra-hard soil layer | |
| JP2001081770A (en) | Pile foundation work |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180601 |