CN101275396A - Rotating extrusion concrete filling pile construction method and equipment - Google Patents
Rotating extrusion concrete filling pile construction method and equipment Download PDFInfo
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- CN101275396A CN101275396A CNA2007100719414A CN200710071941A CN101275396A CN 101275396 A CN101275396 A CN 101275396A CN A2007100719414 A CNA2007100719414 A CN A2007100719414A CN 200710071941 A CN200710071941 A CN 200710071941A CN 101275396 A CN101275396 A CN 101275396A
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Abstract
A rotating squeezing concrete filling pile construction method, uses boring tool solid boring with olive type solid borer to drill, rotatably squeezes the soil body to form a solid boring whose surroundings soil body is pressed to the designed deepness, and then reversely turning and lifting the drill stem, meanwhile pumping ultra-fluid state concrete in the hollow-drill stem, vibratedly inserting the drill stem in a reinforcing steel cage after lifting out the drill stem. Boreholes are formed by using olive type solid borer to rotating squeeze the soil body, which does not need to take out earth, has a favorable pressing dense function to surroundings soil body, and rotatably squeezes the concrete filling pile borehole as an once creating pore. Adopting the inventive rotatably squeezing dense soil body pore-creating method, the pile surroundings soil body is stabilized by densification, the compactness of the pile surroundings soil body is improved about 30%, the pile side friction resistance is improved about 30%, the pile end support force is improved about 50-70%; the unconsolidated formation concrete filling coefficient is only 1.25, the construction cost is reduced, which has good pile-formation effect and can improve work efficiency for about 20-30%; the method is suitable for hard and compact clay layer, soil layer containing larger gravel amount and air slaking pulverize rock bedding, meanwhile has economy and environment protection effect; the invention has advantages of simple structure, low fabrication cost, being apt to popularize and spread, and being widely used in concrete filling pile construction.
Description
Technical field:
The present invention relates to a kind of job practices and equipment of building pile foundation.
Background technology:
At present, the ground of highrise building is handled the long spiral pump Superfluid state concrete of more employing castinplace pile, this method mainly exist problem be: 1,, inter-pile soil is not had compacted effect for the auger stake of fetching earth, to composite foundation, can not give full play to the strength of the mixing pile effect based on friction.2, restricted by construction equipment technology, the stratum scope of application is less, only is applicable to bury, clay and powder fine sand stratum, is not suitable for to contain the higher soil layer of gravel amount, and intensity is at 180-220KN/m
2Above argillic horizon and detrition rock stratum.3, long screw drill rod does not stop rotation in the hole, and the scall hole enlargement is bigger, and the concrete fullness coefficient is 1.5, and the concrete waste is big, the construction cost height.4, not stop and rotation and hole wall friction of long screw drill rod, power consumption is big, and efficiency of construction is low.Addressing this problem becomes urgent need.
Summary of the invention:
The objective of the invention is to: a kind of job practices and equipment are provided, under situation about not fetching earth, finish the Superfluid state concrete filling pile construction, and to improve stake bearing capacity, reduce construction cost, improve construction efficiency, economic environmental protection, will adapt to various bad grounds.Rotating extrusion concrete filling pile construction method, with the drilling tool boring that has olive formula drill bit, by of the rotation extruding of this drill bit to the soil body, after forming the compacted boring that reaches projected depth of a surrounding soil, counter-rotating promotes drilling rod, drilling rod limit pumping Superfluid state concrete in hollow drill is carried on the limit, drilling rod proposes after vibration and inserts reinforcing cage, described concrete is the concrete of the slump at 22-25cm, described boring is to form by the rotation extruding of olive formula drill bit to the soil body, need not fetch earth and surrounding soil is had good compacted effect, rotating extrusion concrete filling pile boring is one-step pore-creating, and the drilling rod center pumps into concrete behind the rotating extrusion concrete filling pile pore-forming.Realize the equipment of above-mentioned rotating extrusion concrete filling pile construction method, its composition comprises: drilling rod, go up auger stem, extrusion head, auger stem, olive formula drill bit down, described drilling rod, go up auger stem, extrusion head, auger stem is hollow with the footpath down.
Advantage of the present invention:
1, the present invention is by being connected the olive formula drilling tool of drilling rod lower end, rotation extrusion soil pore-forming, and pile-forming effect is good, can improve work efficiency 20-30%.
2, the present invention rotates compacted soil body pore-forming by olive formula drill bit, and the stake surrounding soil obtains ground extruding, improves pile peripheral earth compactness 30%, and pile side friction improves 30%, and stake end load improves 50-70%.
3, the present invention rotates compacted soil body pore-forming by olive formula drill bit, need not fetch earth economic environmental protection.
4, the present invention rotates compacted soil body pore-forming by olive formula drill bit, and unconsolidated formation concrete fullness coefficient only is 1.25, reduces construction cost.
5, adopt this job practices, applicable to reaching the leck layer firmly, containing bigger soil layer of gravel amount and detrition rock stratum.
6, rotation soil compaction apparatus structure of the present invention is simple, and cost is low, is easy to penetration and promotion.
Description of drawings:
Fig. 1 be method of the present invention be rotated the extruding hole to the constructing structure schematic diagram of projected depth;
Fig. 2 carries the constructing structure schematic diagram that drilling tool pumps into Superfluid state concrete simultaneously on method of the present invention is carried out;
Fig. 3 is that method of the present invention proposes the constructing structure schematic diagram that drill string vibration inserts reinforcing cage;
Fig. 4 is the structure chart of rotation compact making hole device.
The specific embodiment:
Rotating extrusion concrete filling pile construction method, with the drilling tool boring that has olive formula drill bit, by of the rotation extruding of this drill bit to the soil body, after forming the compacted boring that reaches projected depth of a surrounding soil, counter-rotating promotes drilling rod, drilling rod limit pumping Superfluid state concrete in hollow drill is carried on the limit, and drilling rod proposes after vibration and inserts reinforcing cage.Above-mentioned rotating extrusion concrete filling pile construction method, described concrete are the concrete of the slump at 22-25cm.Described boring is to form by the rotation extruding of olive formula drill bit to the soil body, need not fetch earth and surrounding soil is had good compacted effect, rotating extrusion concrete filling pile boring is one-step pore-creating, and the drilling rod center pumps into concrete behind the rotating extrusion concrete filling pile pore-forming.Realize the equipment that rotating extrusion concrete filling pile construction method of the present invention is used, comprising: drilling rod 1, go up auger stem 2, extrusion head 3, auger stem 4 down, described drilling rod, go up auger stem, extrusion head, auger stem is hollow with the footpath down.
Claims (6)
1. rotating extrusion concrete filling pile construction method, it is characterized in that: with the drilling tool boring that has olive formula drill bit, by of the rotation extruding of this drill bit to the soil body, after forming the compacted boring that reaches projected depth of a surrounding soil, counter-rotating promotes drilling rod, the limit is carried the drilling rod limit and pump into Superfluid state concrete in hollow drill, and drilling rod proposes after vibration and inserts reinforcing cage.
2. pile construction method according to claim 1 is characterized in that: described concrete is the concrete of the slump at 22-25cm.
3. rotating extrusion concrete filling pile construction method according to claim 1 and 2 is characterized in that: described boring is to form by the rotation extruding of extrusion head to the soil body.
4. rotating extrusion concrete filling pile construction method according to claim 1 and 2 is characterized in that: rotating extrusion concrete filling pile boring is one-step pore-creating.
5. rotating extrusion concrete filling pile construction method according to claim 1 and 2 is characterized in that: the drilling rod center pumps into concrete behind the rotating extrusion concrete filling pile pore-forming.
6. realize the used olive formula of the described rotating extrusion concrete filling pile construction method of claim 1 rotation extruding drilling tool for one kind, it is characterized in that: it comprises drilling rod, last auger stem, extrusion head, following auger stem, olive formula drill bit, described drilling rod, last auger stem, extrusion head, following auger stem are hollow, and diameter is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100719414A CN101275396A (en) | 2007-03-26 | 2007-03-26 | Rotating extrusion concrete filling pile construction method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100719414A CN101275396A (en) | 2007-03-26 | 2007-03-26 | Rotating extrusion concrete filling pile construction method and equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101275396A true CN101275396A (en) | 2008-10-01 |
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ID=39995206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100719414A Pending CN101275396A (en) | 2007-03-26 | 2007-03-26 | Rotating extrusion concrete filling pile construction method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101275396A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286969A (en) * | 2011-06-24 | 2011-12-21 | 黄琦峰 | Hole loosening process for displacement pile |
| CN104895124A (en) * | 2015-05-27 | 2015-09-09 | 王春龙 | Method and device for monitoring finished plates of squeezed and expanded branch and plate cast-in-place pile |
| CN107842313A (en) * | 2017-11-28 | 2018-03-27 | 重庆华硕建设有限公司 | A kind of rotary drilling rig compact making hole construction technology |
| CN113323584A (en) * | 2021-06-18 | 2021-08-31 | 四川振杰岩土工程有限责任公司 | Drilling method of large vibrating long spiral drilling machine |
-
2007
- 2007-03-26 CN CNA2007100719414A patent/CN101275396A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102286969A (en) * | 2011-06-24 | 2011-12-21 | 黄琦峰 | Hole loosening process for displacement pile |
| CN104895124A (en) * | 2015-05-27 | 2015-09-09 | 王春龙 | Method and device for monitoring finished plates of squeezed and expanded branch and plate cast-in-place pile |
| CN104895124B (en) * | 2015-05-27 | 2016-09-21 | 王春龙 | The one-tenth dish monitoring method and device of expanding branch grouting pile |
| CN107842313A (en) * | 2017-11-28 | 2018-03-27 | 重庆华硕建设有限公司 | A kind of rotary drilling rig compact making hole construction technology |
| CN107842313B (en) * | 2017-11-28 | 2019-04-30 | 重庆华硕建设有限公司 | A kind of rotary drilling rig compact making hole construction technology |
| CN113323584A (en) * | 2021-06-18 | 2021-08-31 | 四川振杰岩土工程有限责任公司 | Drilling method of large vibrating long spiral drilling machine |
| CN113323584B (en) * | 2021-06-18 | 2023-11-07 | 四川振杰岩土工程有限责任公司 | Drilling method of large-scale vibration long spiral drilling machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081001 |