CN110397059A - A kind of compound tree root pile constructing process of preexisting hole stiffness - Google Patents
A kind of compound tree root pile constructing process of preexisting hole stiffness Download PDFInfo
- Publication number
- CN110397059A CN110397059A CN201810381527.1A CN201810381527A CN110397059A CN 110397059 A CN110397059 A CN 110397059A CN 201810381527 A CN201810381527 A CN 201810381527A CN 110397059 A CN110397059 A CN 110397059A
- Authority
- CN
- China
- Prior art keywords
- pile
- steel
- prefabricated components
- pipe
- construction
- 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
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- 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
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
Abstract
The present invention relates to a kind of compound tree root pile constructing process of preexisting hole stiffness, the compound root pile of preexisting hole stiffness be by rotary drilling rig in soil layer preparatory pore-forming, it is unearthed simultaneously using drill bit, until counterbore reaches required depth, single or more band hangnail prefabricated components or cast-in-place steel-pipe pile are put into after drilled-hole inspecting is qualified, Reperfu- sion cement mortar, vibration compacting merge cement mortar and prefabricated components or cast-in-place steel-pipe pile etc. sufficiently, form the compound root pile of preexisting hole stiffness.It is an advantage of the invention that pile is without squeezing soil, whole pile foundations in single cushion cap can be completed in speed of application fastly, once, bearing capacity is big, rigidity is larger, and low cost, energy conservation and environmental protection, can be widely applied in the construction fields such as work China Democratic National Construction Association and municipal administration high benefit.
Description
Technical field
The present invention relates to a kind of compound tree root pile constructing process of preexisting hole stiffness, are mainly used in the bases such as work China Democratic National Construction Association and municipal administration
Infrastructure construction field can be used for industry and civil buildings and municipal works stake, can provide biggish anti-pulling capacity and replaces
Traditional uplift pile can provide biggish Compressive Bearing Capacity instead of traditional compressive pile, simultaneously because speed of application is fast, primary
It constructs achievable single cushion cap stake, reliable construction quality, replaceable large diameter pile has wide technical application prospect.
Background technique
As China's economy develops rapidly, engineering construction field also achieves proud achievement, and each department high buildings and large mansions are such as
It rises sheer from level ground as emerging rapidly in large numbersBamboo shoots after a spring rain, pile foundation is also grown rapidly, and since its bearing capacity is high, sedimentation is small, is applied to by wide hair
Engineering construction field.At present the more commonly used pile foundation in China there are several types of: (1) bored concrete pile, (2) prefabricated pile, (3) anchor pole are quiet
Piling.
In the above pile foundation pile-type: (1) being the shortcomings that bored concrete pile, although its is without squeezing soil, can provide biggish resistance to compression and anti-
Bearing capacity is pulled out, but its cost is high, the construction period is long, complex process, usually mostly uses greatly in the preferable situation of surrounding enviroment prefabricated
Stake；(2) prefabricated pile disadvantage is soil-squeezing action in its work progress, and when construction wants strict control sequence of construction and construction rate,
Simultaneously because On-site Welding Technology deficiency is easy to cause pile foundation splice failure, be easy to cause during earth excavation pile foundation inclination and
Broken pile；(3) it is to be generally usually used in compressive pile, the low bearing capacity of ground correction and strengthening reconstruction the shortcomings that anchor jacked pile.
In terms of duration and cost, the engineering pile of prefabricated pile is inserted into mixing pile in recent years increasingly by the industry
The concern of personage, while there has also been many Project cases, effect is preferable after construction.But prefabricated pile is inserted into convention stir stake
This method is with human factor is affected, construction quality is more difficult to control, bearing capacity of pile foundation promotion is limited, construction technology is more multiple
Miscellaneous, it is also to happen occasionally that static load test is caused since site operation is improper.
Summary of the invention
In order to overcome the shortcomings of above several pile base construction methods, meet the need of present engineering construction field development of pile foundation
It wants, accomplishes that a kind of Novel pile foundation construction technology is invented in safe and reliable, economical rationality, spy.It is an advantage of the invention that pile it is without squeezing soil,
Speed of application is fast, whole pile foundations in single cushion cap once can be completed, and bearing capacity is big, rigidity is larger, low cost, high benefit,
Energy conservation and environmental protection can be widely applied in the construction fields such as work China Democratic National Construction Association and municipal administration.
The invention is realized in this way be unearthed by rotary drilling rig preparatory pore-forming in soil layer, while using drill bit, until
Depth needed for counterbore reaches is put into single or more band hangnail prefabricated components or cast-in-place steel-pipe pile after drilled-hole inspecting is qualified,
Reperfu- sion cement mortar, vibration compacting merge cement mortar and prefabricated components or cast-in-place steel-pipe pile etc. sufficiently, form preexisting hole
The compound root pile of stiffness.
Construction procedure described in the compound root pile of preexisting hole stiffness is as follows:
(1) setting-out releases whole pile foundations in a cushion cap according to construction drawing；
(2) device is in place, and rotary drilling rig is moved to position to be onstructed；
(3) turn on the power device, and rotary digging drill bit, which is drilled down into, takes soil, until counterbore reaches required depth；
(4) after counterbore detection is qualified, rotary rig displacement, hanging device transfers prefabricated components or steel pipe to when construction
In the hole of formation, and hangnail is welded simultaneously to pouring concrete within steel pipe or high-strength water in prefabricated components or steel pipe decentralization process
Cement mortar forms steel-pipe pile；
(5) prefabricated components or steel-pipe pile are transferred to designed elevation, to the hole that is formed when construction in cement injection mortar until
Designed elevation and vibration compacting；
(6) step (2)-(5) are repeated, are constructed next group.
In pile foundation engineering, had the advantage that using this construction technology
1, single or more prefabricated component or steel-pipe pile are put by preexisting hole, pile is without squeezing soil, speed of application is fast, primary
Whole pile foundations in single cushion cap can be completed, avoid influencing each other for pile foundation construction in cushion cap；
2, since there is hangnail on single or more prefabricated components being put into or steel-pipe pile surface, prefabricated components are further enhanced
Or the side friction of steel-pipe pile and cement mortar, while adjustable hangnail direction is needed according to stress, keep bearing capacity of pile foundation aobvious
It writes and improves；
3, cement mortar is that premixing mortar, its quality are reliable compared with the soil cement that picks up, then make cement mortar using vibration compacting
It is sufficiently merged with prefabricated components or cast-in-place steel-pipe pile etc., pile sinking is quality controllable.
Detailed description of the invention
Fig. 1-1 is the cross section implementation flow chart of preexisting hole stiffness composite single root pile of the present invention.
Fig. 1-2 is the vertical section structure schematic diagram of preexisting hole stiffness composite single root pile of the present invention.
Fig. 2-1 is the cross section implementation flow chart of the compound more root piles of preexisting hole stiffness of the present invention.
Fig. 2-2 is the vertical section structure schematic diagram of the compound more root piles of preexisting hole stiffness of the present invention.
Wherein: 1- preexisting hole；2- prefabricated components or steel-pipe pile；3- cement mortar；The basis 4-；5- hangnail.
Specific embodiment
The compound tree root pile constructing process of preexisting hole stiffness as depicted in figs. 1 and 2, including production preexisting hole, are put into band hangnail
Prefabricated components or steel pipe and concrete perfusion, three processes of cement injection mortar,
Above-described preparatory pore-forming be by rotary drilling rig in soil layer preparatory pore-forming, while using drill bit be unearthed, directly
Depth needed for being reached to counterbore.
It is above-described to be put into the prefabricated components with hangnail or steel pipe and concrete perfusion is pore-forming after detection is qualified, it puts
Enter single-unit or prefabricated components or steel pipe, hangnail that more piece is welded can be site welding or factory's production, according to steel pipe
Answer concrete perfusion.
Above-described cement injection mortar is cement injection fine coal ash broken stones as needed, soil cement, cement mortar, mixed
Solidifying soil, and vibration compacting merges cement mortar and prefabricated components, cast-in-place steel-pipe pile etc. sufficiently, forms the compound tree of preexisting hole stiffness
Pile
The construction procedure is as follows:
(1) setting-out releases whole pile foundations in a cushion cap according to construction drawing；
(2) device is in place, and rotary drilling rig is moved to position to be onstructed；
(3) turn on the power device, and rotary digging drill bit, which is drilled down into, takes soil, until counterbore reaches required depth；
(4) after counterbore detection is qualified, rotary rig displacement, hanging device transfers prefabricated components or steel pipe to when construction
In the hole of formation, and hangnail is welded simultaneously to pouring concrete within steel pipe or high-strength water in prefabricated components or steel pipe decentralization process
Cement mortar forms steel-pipe pile；
(5) prefabricated components or steel pipe are transferred to designed elevation, to the hole that is formed when construction in cement injection mortar until setting
Count absolute altitude and vibration compacting；
(6) step (2)-(5) are repeated, implements the above identical operation, pile foundation can be completed.
Claims (5)
1. a kind of compound tree root pile constructing process of preexisting hole stiffness, which is characterized in that the construction technology passes through rotary drilling rig
The preparatory pore-forming in soil layer, while being unearthed using drill bit, until counterbore reaches required depth, list is put into after drilled-hole inspecting is qualified
Root or more bands hangnail prefabricated components or cast-in-place steel-pipe piles, then casting concrete or cement injection mortar, vibration compacting make water
Cement mortar and prefabricated components or cast-in-place steel-pipe pile etc. sufficiently merge, and form the compound root pile of preexisting hole stiffness.
2. the compound tree root pile constructing process of a kind of preexisting hole stiffness according to claim 1, which is characterized in that the band
Hangnail prefabricated components can be H profile steel, U-type groove steel, L-type angle steel, tubular pole, square pile etc., and hangnail can be pre-buried with prefabricated components
It is completed together when part site welding or factory's production prefabricated components.
3. the compound tree root pile constructing process of a kind of preexisting hole stiffness according to claim 1, which is characterized in that the elder generation
Site welding hangnail when being put into band hangnail prefabricated components or being put into steel pipe, then casting concrete or cement mortar into steel pipe, shape
At steel-pipe pile.
4. the compound tree root pile constructing process of a kind of preexisting hole stiffness according to claim 1, which is characterized in that described one
The secondary whole pile foundations completed in single cushion cap.
5. a kind of compound tree root pile constructing process of preexisting hole stiffness, which is characterized in that the construction procedure is as follows:
(1) setting-out releases whole pile foundations in a cushion cap according to construction drawing；
(2) device is in place, and rotary drilling rig is moved to position to be onstructed；
(3) turn on the power device, and rotary digging drill bit, which is drilled down into, takes soil, until counterbore reaches required depth；
(4) after counterbore detection is qualified, rotary rig displacement, hanging device transfers prefabricated components or steel pipe to being formed when construction
Hole in, and weld hangnail simultaneously to pouring concrete within steel pipe or high-strength cement sand in prefabricated components or steel pipe decentralization process
Slurry forms steel-pipe pile；
(5) prefabricated components or steel-pipe pile are transferred to designed elevation, to the hole that is formed when construction in cement injection mortar until design
Absolute altitude and vibration compacting；
(6) step (2)-(5) are repeated, are constructed next group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810381527.1A CN110397059A (en) | 2018-04-25 | 2018-04-25 | A kind of compound tree root pile constructing process of preexisting hole stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810381527.1A CN110397059A (en) | 2018-04-25 | 2018-04-25 | A kind of compound tree root pile constructing process of preexisting hole stiffness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110397059A true CN110397059A (en) | 2019-11-01 |
Family
ID=68320027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810381527.1A Pending CN110397059A (en) | 2018-04-25 | 2018-04-25 | A kind of compound tree root pile constructing process of preexisting hole stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110397059A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877329A (en) * | 2020-07-03 | 2020-11-03 | 广州市第一市政工程有限公司 | Pile-in-pile broken pile and pile-splicing construction method |
| CN112411583A (en) * | 2020-12-10 | 2021-02-26 | 中国地质科学院探矿工艺研究所 | Integrated form side slope drainage reinforcerment system |
| CN113293759A (en) * | 2021-06-30 | 2021-08-24 | 西南交通大学 | Implanted steel pipe concrete reinforcing method for concrete filling pile broken pile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320120A (en) * | 2016-08-31 | 2017-01-11 | 安徽省经工建设集团公司 | Construction process for pile slab type non-soil roadbed highway |
| CN206859210U (en) * | 2017-06-07 | 2018-01-09 | 江苏华都建设有限公司 | Grouting behind shaft or drift lining formula steel-pipe pile |
-
2018
- 2018-04-25 CN CN201810381527.1A patent/CN110397059A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106320120A (en) * | 2016-08-31 | 2017-01-11 | 安徽省经工建设集团公司 | Construction process for pile slab type non-soil roadbed highway |
| CN206859210U (en) * | 2017-06-07 | 2018-01-09 | 江苏华都建设有限公司 | Grouting behind shaft or drift lining formula steel-pipe pile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111877329A (en) * | 2020-07-03 | 2020-11-03 | 广州市第一市政工程有限公司 | Pile-in-pile broken pile and pile-splicing construction method |
| CN112411583A (en) * | 2020-12-10 | 2021-02-26 | 中国地质科学院探矿工艺研究所 | Integrated form side slope drainage reinforcerment system |
| CN113293759A (en) * | 2021-06-30 | 2021-08-24 | 西南交通大学 | Implanted steel pipe concrete reinforcing method for concrete filling pile broken pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101736760B (en) | Construction method of prestressed anti-floating anchor rod | |
| CN103422501B (en) | Anti-floating anchor rod structure in sand seam geology and construction method thereof | |
| WO2018210019A1 (en) | Pile formation method for down-the-hole impact rotary jet composite piles | |
| CN109024651B (en) | Steel pipe concrete mixed pile foundation and construction method | |
| CN109083649B (en) | It is applicable in the water-rich sand layer pre-grouting reinforcement means of complicated urban environment subway tunnel | |
| CN110397059A (en) | A kind of compound tree root pile constructing process of preexisting hole stiffness | |
| CN105155550A (en) | Construction method for digging deep foundation pit in large-thickness highly weathered sandstone stratum in combined supporting mode | |
| CN109930609A (en) | A kind of campshed composite supporting construction and its construction method for upper-soft lower-hard ground | |
| CN204212162U (en) | A kind of side slope grouting reinforcement structure | |
| CN103485347A (en) | Batter pile used for building foundation pit support and construction method thereof | |
| CN103603379A (en) | Anti-floating system combining anti-floating cement soil pile and anti-floating anchor rod and construction process of anti-floating system | |
| CN203613568U (en) | Anti-floating cement soil pile and anti-floating anchor rod combined anti-floating system | |
| CN108505515A (en) | A kind of construction method of cement mortar composite pile | |
| CN205917713U (en) | Truss -like steel pipe slip casting pile foundation | |
| CN205576957U (en) | Stake end pilework | |
| CN102220764A (en) | Deep foundation pit bracing system and construction method thereof | |
| CN201406687Y (en) | Deep foundation pit supporting structure | |
| CN206477240U (en) | A kind of trestle pile foundation for deep water drift net riverbed | |
| CN103790190B (en) | Precast hollow squeezes into pile foundation remedial Consolidation method | |
| CN204199274U (en) | The compound pile of the outer pile body intensity adjustable of pile body band enlarged footing in a kind of reserved mud space | |
| CN208472721U (en) | A kind of anchor pole constructed in loose media stratum using hand air drill | |
| WO2013115677A2 (en) | Screw injection pile and method for producing same | |
| CN208039240U (en) | A kind of built pile | |
| CN105951743A (en) | Plum blossom-shaped profile steel cement stirring wall | |
| CN106351222A (en) | Construction method of soft rock foundation bedding mortar implantation tube pile |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191101 |