CN102011402B - Construction method of long auger drilling concrete-grouted back-plugged profile steel piles - Google Patents
Construction method of long auger drilling concrete-grouted back-plugged profile steel piles Download PDFInfo
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- CN102011402B CN102011402B CN 201010539901 CN201010539901A CN102011402B CN 102011402 B CN102011402 B CN 102011402B CN 201010539901 CN201010539901 CN 201010539901 CN 201010539901 A CN201010539901 A CN 201010539901A CN 102011402 B CN102011402 B CN 102011402B
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Abstract
The invention relates to a construction method of long auger drilling concrete-grouted back-plugged profile steel piles. The method mainly comprises the following steps: drilling holes by using a long auger drilling machine and taking soil; drilling to the designed depth, and grouting concrete; manufacturing a back-plugged profile steel component, processing a circular hole with the diameter of 5cm at a position which is 5cm away from the top of an I-bar, manufacturing a T-shaped plug by using a steel bar with the diameter of 14mm, connecting the profile steel with a vibration connector by using the T-shaped plug, and coiling the flange of the lower part of the profile steel inwards by 60 degrees; connecting a profile steel pile with the vibration connector, lifting and centering; sinking by utilizing the dead weight of the profile steel pile in the early stage, and after sinking to a certain depth, starting a spring vibration hammer until the profile steel pile sinks to the designed position under the action of vibration, wherein in the construction process, special persons are designated to control the verticality by using two theodolites and control the top height by using a balance level; and dismantling the connector to obtain the pile. By utilizing the construction method, the quality problem in foundation ditch slope-protection support pile construction in a narrow space is solved, and the problems that the back compressed steel bar cage of small-diameter pile foundations can not sink to the designed position and voids can be easily formed are also solved. The construction method provided by the invention has the advantages of less working procedures and small occupied construction site.
Description
Affiliated technical field
The present invention relates to a kind of long auger cast-in-place concrete pile pile foundation construction, especially be applicable to the construction plant narrow and small, the stake footpath is less than the pattern foundation pit supporting structure slope protection pile of 400mm.
Background technology
At present, insert the job practices of reinforcing cage behind the long auger guncreting that generally adopts, patent of invention " long auger pumping concrete pile-forming after-inserted reinforcing cage construction technology and reinforcement cage leading-in device " (application number 200310101954.3), for the pile foundation of diameter less than 400mm, reinforcing cage rigidity is little, the reinforcing cage resistance capacity to deformation is poor, adopt special-purpose Pile feeder to construct, Pile feeder is basically isometric with reinforcing cage, again Pile feeder is extracted after reinforcing cage delivered to the precalculated position, increased on the one hand the resistance in the reinforcing cage sinking process, reinforcing cage is heavy to be established less than design attitude, and pile body easily forms the hole gap in the on the other hand pile pulling process, affects pile quality, the length consuming time of constructing, efficiency of construction is low.Steel Reinforcing Bar Material, fabrication of reinforcing cage needs large stretch of place, and limited construction plant is difficult for carrying out in the city.
Summary of the invention
For slotting reinforcing cage job practices reinforcing cage in the pile foundation construction of paxilla footpath after overcoming existing long auger guncreting can not sink to design attitude, easily form the hole gap, construction efficiency is low, the shortcomings such as occupied ground is large, the present invention proposes a kind of job practices of rear slotting Section-steel Piles, and this method working procedure is simple, easy construction, pile quality is good, environmental protection, mud-less pollution.
The present invention solves the technical scheme that its technical disadvantages adopts:
A kind of rear slotting Section-steel Piles vibration linkage, comprise the flange, steel bushing, connection shaped steel, the branch sleeve that are connected with the spring vibration hammer, it is characterized in that: described steel bushing one end and flange welding, the other end be connected shaped steel welding, described connection shaped steel stretches in steel bushing and the branch sleeve and welding, opens the rectangular card pin-and-hole on the described branch sleeve.
A kind of rear slotting Section-steel Piles job practices, the main construction equipment that this job practices adopts is long-spiral drilling machine, crane, vibrating hammer, vibration linkage, Section-steel Piles, transit, level gauge.
Main construction sequence:
1, stake position unwrapping wire is accurately made the pile foundation center;
2, make the rear Steel section member of inserting, select i iron, the size of i iron is determined according to the size requirements of force request, stake bore dia by the designer.Apart from 5cm place, i iron top, process a diameter 5cm circular hole, be used for lifting as pin hole.Be the reinforcement fabrication T-shaped latch of 14mm with diameter, utilize T-shaped latch that shaped steel and vibration linkage are linked together.Processing after the heating of the edge of a wing, shaped steel bottom is spent to curls inward 60, and it is difficult for affecting pile quality with stake bore edges generation scratch.
3, adopt the full screw earth auger boring extracting soil;
4, drilling to completion, guncreting to design specifications requires height, and the super certain altitude of filling with;
5, Section-steel Piles is connected with the vibration linkage, lifting, centering;
6, the initial stage sinks by the Section-steel Piles deadweight, after sinking to certain depth, start vibrating hammer, vibration-sunk is to design attitude, slowly sink to concrete to stake top mark height at shaped steel, electromagnetic shaker vibrates 2～3 minutes again, to guarantee concrete compactness, arrange the special messenger to control its verticality centering position with two transits in the work progress, control its top mark with level gauge high;
7, remove linkage, pile.
Beneficial effect of the present invention: solved small space foundation pit slope protection soldier pile construction difficult problem, the pressing reinforcing cage can not sink to design attitude after having solved paxilla footpath pile foundation, easily forms the quality problems such as hole, concrete leakiness, and working procedure is simple, take the construction plant little, work efficiency is high.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples:
Fig. 1 is stake position unwrapping wire long-spiral drilling machine centering construction schematic diagram;
Fig. 2 is long-spiral drilling machine drilling process construction schematic diagram;
Fig. 3 is guncreting construction schematic diagram;
Fig. 4 is rear slotting Section-steel Piles construction schematic diagram;
Fig. 5 is the pile schematic diagram;
Fig. 6 is that the present invention vibrates the linkage schematic diagram;
Fig. 7 is rear slotting shaped steel Section-steel Piles processing and fabricating schematic diagram;
Fig. 8 is rear slotting Section-steel Piles construction process control schematic diagram.
Reference numeral: the 1-long-spiral drilling machine, 2-vibrates linkage, 2.1-flange, 2.2-steel bushing, 2.3-connection shaped steel, 2.4-joint steel pipe, 2.5-T-shaped latch, 2.6-rectangular card pin-and-hole, the 3-Section-steel Piles, 3.1-suspender belt hole, 3.2-60 ° of crimping, 4.1-transit 1,4.2-transit 2,5-level gauge, 6-vibrating hammer.
The specific embodiment
Implement legend referring to Fig. 1～Fig. 8.
Long-spiral drilling machine 1 displacement centering in Fig. 1, control long screw drill rod center and stake position center.
Long-spiral drilling machine 1 is holed to design elevation in Fig. 2.
Long-spiral drilling machine 1 limit rotates and portals in Fig. 3, and the limit pumping of concrete is to the stake top, and a part of concrete of super filling.
In Fig. 4 the Section-steel Piles 3 of making is connected with vibration linkage 2, the flange 2.1 of vibration linkage 2 is connected with spring vibration hammer 6, adopts loop wheel machine to mention, then centering, sinking Section-steel Piles.
Sink to design attitude at the medium-sized piling bar of Fig. 5, remove T-shaped bayonet lock, pile.
In Fig. 6, make vibration linkage 2, with flange 2.1 and steel bushing 2.2, be connected shaped steel 2.3, joint steel pipe 2.4 and weld together according to design drawing, open rectangular card pin-and-hole 2.6 at joint steel pipe 2.4, make T-shaped latch 2.5.
In Fig. 7, shaped steel 3 is processed, made the suspender belt hole 3.1 double pin holes of doing of diameter 5cm, inwardly do 60 ° of crimpings 3.2 to processing after the heating of the edge of a wing, shaped steel 3 bottom.
Adopt transit 4.1 and transit 4.2 to measure centering in Fig. 8, the control verticality is inserted the Section-steel Piles elevation after level gauge 5 controls.
Claims (3)
1. construction method of long auger drilling concrete-grouted back-plugged profile steel piles, main construction equipment is long-spiral drilling machine (1), crane, vibrating hammer (6), vibration linkage (2), Section-steel Piles (3), it is characterized in that: adopt special vibrating linkage (2) to be connected with Section-steel Piles (3), vibration-sunk Section-steel Piles (3) is to design attitude;
Main construction sequence:
Step 1, stake position unwrapping wire are accurately made the pile foundation center;
Insert Steel section member after step 2, the making, select i iron, the size of i iron is determined according to the size requirements of force request, stake bore dia by the designer, process a suspender belt hole (3.1) apart from the i iron top, utilize T-shaped latch (2.5) that i iron and vibration linkage (2) are linked together, to processing inside 60 ° of crimpings (3.2) after the heating of the edge of a wing, i iron bottom, making it be difficult for producing scratch with the stake bore edges affects pile quality;
Step 3, employing full screw earth auger (1) boring extracting soil;
Step 4, drilling to completion, guncreting to design specifications requires height, and the super certain altitude of filling with;
Step 5, Section-steel Piles (3) is connected with vibration linkage (2), lifting, centering, described rear slotting Section-steel Piles vibration linkage, comprise the flange (2.1) that is connected with vibrating hammer (6), steel bushing (2.2), connect shaped steel (2.3), joint steel pipe (2.4), described steel bushing (2.2) one ends and flange (2.1) welding, the other end be connected shaped steel (2.3) welding, described connection shaped steel (2.3) stretches in steel bushing (2.2) and the joint steel pipe (2.4) and welding, has on the described joint steel pipe (2.4) for the rectangular card pin-and-hole (2.6) of inserting T-shaped latch (2.5);
Step 6, initial stage are sunk by the Section-steel Piles deadweight, sink to certain depth after, start vibrating hammer (6), vibration-sunk slowly sinks to concrete to design attitude to stake top mark height at shaped steel, electromagnetic shaker vibrates 2～3 minutes again, to guarantee concrete compactness;
Step 7, dismounting vibration linkage (2), pile.
2. construction method of long auger drilling concrete-grouted back-plugged profile steel piles according to claim 1, it is characterized in that: described suspender belt hole (3.1) is apart from 5cm place, i iron top, it is the circular hole of diameter 5cm, T-shaped latch diameter is the reinforcement fabrication of 14mm, utilizes T-shaped latch that shaped steel and vibration linkage are linked together.
3. construction method of long auger drilling concrete-grouted back-plugged profile steel piles according to claim 1 and 2, it is characterized in that: arrange the special messenger to control its verticality centering position with two transits (4.1), (4.2) in the work progress of step 6, control its top mark with level gauge (5) high.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010539901 CN102011402B (en) | 2010-11-11 | 2010-11-11 | Construction method of long auger drilling concrete-grouted back-plugged profile steel piles |
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| CN 201010539901 CN102011402B (en) | 2010-11-11 | 2010-11-11 | Construction method of long auger drilling concrete-grouted back-plugged profile steel piles |
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| CN102011402B true CN102011402B (en) | 2013-01-02 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808407B (en) * | 2012-08-14 | 2014-09-03 | 天津二十冶建设有限公司 | Construction method of soft-foundation reinforced concrete cast-in-place pile |
| CN103015430A (en) * | 2012-12-04 | 2013-04-03 | 北京建材地质工程公司 | Long auger pressure filling steel reinforced cement-soil pile foundation pit water-resisting and supporting method |
| CN103758121A (en) * | 2014-01-08 | 2014-04-30 | 上海中锦建设集团股份有限公司 | Deep foundation pit built-in profile steel drawable unreinforced filling pile |
| CN104631440B (en) * | 2015-01-29 | 2016-06-01 | 南昌市建筑工程集团有限公司 | A kind of existing large-section in-situ concrete pile strength core increases foundation pit supporting construction and constructional method |
| CN104674794B (en) * | 2015-02-13 | 2017-01-04 | 河南三建建设集团有限公司 | A kind of llong helix bored piles steel reinforcement cage positioner and method thereof |
| CN105239561A (en) * | 2015-09-01 | 2016-01-13 | 北京建材地质工程公司 | Long spiral mix spray pre-grouting press concrete post-inserted steel reinforcement cage cast-in-place pile construction process |
| CN105421342A (en) * | 2015-11-04 | 2016-03-23 | 上海十三冶建设有限公司 | Reinforcement cage feeding method of long auger drilling press-grouting pile |
| CN112267465A (en) * | 2020-10-27 | 2021-01-26 | 潘长艳 | Progressive piling device for building construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349262Y (en) * | 1998-10-01 | 1999-11-17 | 昆明大力地基有限公司 | Pile feeder |
| CN1632238A (en) * | 2004-12-29 | 2005-06-29 | 天津市华达商贸有限公司 | Long spiral press pouring concrete lock pin combination pile and construction method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3144767B2 (en) * | 1997-02-12 | 2001-03-12 | 東京設計事務所有限会社 | Underground pile forming method and apparatus |
| JP2004339703A (en) * | 2003-05-13 | 2004-12-02 | Traverse:Kk | Foundation construction method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2349262Y (en) * | 1998-10-01 | 1999-11-17 | 昆明大力地基有限公司 | Pile feeder |
| CN1632238A (en) * | 2004-12-29 | 2005-06-29 | 天津市华达商贸有限公司 | Long spiral press pouring concrete lock pin combination pile and construction method thereof |
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Inventor after: Wang Peng Inventor after: Tan Lihua Inventor after: Wang Ruiqing Inventor after: Zhang Pengfei Inventor after: Ge Binbin Inventor after: Yu Lan Inventor before: Wang Peng Inventor before: Tan Lihua Inventor before: Wang Ruiqing Inventor before: Zhang Pengfei |
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