CN102767178A - Stand column pile and construction method thereof - Google Patents
Stand column pile and construction method thereof Download PDFInfo
- Publication number
- CN102767178A CN102767178A CN2012102495813A CN201210249581A CN102767178A CN 102767178 A CN102767178 A CN 102767178A CN 2012102495813 A CN2012102495813 A CN 2012102495813A CN 201210249581 A CN201210249581 A CN 201210249581A CN 102767178 A CN102767178 A CN 102767178A
- Authority
- CN
- China
- Prior art keywords
- pile
- reinforcing cage
- column
- pile body
- hole enlargement
- 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.)
- Granted
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention belongs to the technical field of constructional engineering and particularly relates to a stand column pile. The stand column pile comprises a pile body and a stand column, wherein the stand column comprises a steel reinforcement cage and a latticed column arranged at the top of the steel reinforcement cage; the pile body and the steel reinforcement cage are provided with a pile top expanded region and a pile body unexpanded region; and a crossed part with a gradient is formed between the pile top expanded region and the pile body unexpanded region. The invention further provides a construction method for the stand column pile. A pile head is specially designed and only a pile diameter of a pile top latticed construction member inserted in an influence range is expanded, so that the resource consumption of a drilling hole filling pile and construction cost are greatly reduced under the condition that the latticed column can be smoothly inserted into the steel reinforcement cage.
Description
Technical field
The present invention relates to a kind of stand column pile and job practices thereof, belong to construction engineering technical field.
Background technology
One on stand column pile one post is that the reverse construction basement is as the vertical interim effective ways that carry.Wherein pile body can adopt bored pile, and column generally adopts the steel member, can adopt reinforcing cage to add the combined type column of upper top lattice column usually.At present, along with doing darker and darker against making basement, make the design bearing capacity of steel post increase considerably, the steel lattice column column section increases considerably thereupon.Yet the bearing capacity of borehole bored concrete pile surplus capacity that common lattice column is inserted is very big, and the stake diameter does not need dilated diameter to improve bearing capacity of pile from the loading angle analysis.If be merely steel post can be inserted in the bored pile smoothly, the whole directly compelled and then significantly amplification of bored pile stake.This stake footpath is the equal diameter castinplace pile up and down, not only causes a large amount of social resources wastes such as material, and has increased construction costs.
With certain subway station engineering is example, and it is underground four layers of an island platform station, and engineering adopts the semi-inverse method ultra-deep foundation pit, 28.5 meters of the excavation of foundation pit degree of depth, and the drill-pouring effective length is 40 meters under the stand column pile.Because of this engineering is the contrary sequence method station, station main body stand column pile is arranged in horizontal direction and connects in the longitudinal girder, and deck-siding is 800 millimeters, and the lattice column cross section is 560 millimeters of 560 millimeters *, and the lattice column center is on the beam center line.Length of reinforcing cage surpasses 30 meters, thus stand column pile and lattice column become the pile verticality requirement very high.According to relevant design standard; The bored pile diameter is 950 millimeters, and the lattice column diagonal is 792 millimeters, remove protective layer thickness after clear distance only have 58 millimeters; Find in the reinforcing bar practice of construction process that lattice column can't freely insert interior 3.5 meters of stake, transfer simultaneously after must welding with reinforcing cage.Lattice column can't keep free plumbness because of the reinforcing cage traction is arranged at the bottom; And by past construction experiences, so dark stake hole is in case reinforcing cage can't normally be transferred in the stake hole or be stuck; Because of reinforcing cage through with lattice column welding, reaction is reinforcing cage gross distortion or fall apart usually during to ground.
Summary of the invention
Technical problem to be solved by this invention is the constructional difficulties that causes to the increase of prior art center pillar Cross section Design value, and a kind of stand column pile of improving structure that has is provided.
A kind of stand column pile that the present invention proposes; Comprise pile body and column; The lattice column that said column comprises reinforcing cage and is positioned at the reinforcing cage top; And said pile body and reinforcing cage have not hole enlargement district of a hole enlargement district, top and pile body, and said stake hole enlargement district, top and pile body form the junction with gradient between the hole enlargement district.
The present invention also proposes the job practices of above-mentioned stand column pile, comprises the steps:
The first step, the boring of pile body: at first use large diameter bit drills to pile body not stop in the hole enlargement district, form the stake hole enlargement district, top of pile body and junction with gradient; The rig drill bit changes minor diameter into then, and twice auger spindle center overlaps before and after keeping, a degree of depth at the bottom of being drilled into;
Second step hung prefabricated reinforcing cage in the hole, and ground level temporarily is fixed on the cage top;
The 3rd step, lay base-line check frame housing, housing X, Y be to must designing X, Y to corresponding with lattice column, and on the calibrated mount housing, carry out X, Y to the center line mark;
The 4th step hung prefabricated lattice column, inserted reinforcing cage interior desired depth in pile body hole enlargement district in the stake hole;
The 5th step, through crane reinforcing cage and lattice column to be transferred near specifying the absolute altitude place synchronously, lattice column and reinforcing cage are transferred the free plumbness of each self-sustaining in the process;
In the 6th step, after reinforcing cage reached and specifies absolute altitude, utilization was hung muscle and is fixed;
The 7th step, by putting the calibrated mount inside casing, the calibrated mount inside casing is inserted in lattice column, calibrated mount inside casing X, Y are fixing after center line aligns with housing.
The 8th step kept lattice column free vertical, through the plan-position and the axial angle of calibrated mount adjustment lattice column, and utilized level gauge control lattice column capital absolute altitude, lattice column and calibrated mount welding was fixed after reaching assigned address;
In the 9th step, clear hole and insertion conduit are built concrete under water.
This patent has the following advantages:
1, saves material.This patent is practiced thrift concrete, reinforcing bar and artificial consumption under the prerequisite that meets national regulation and bored pile requirement of strength.
2, the reduction of erection time.Need not to weld lattice column and reinforcing cage junction, save a large amount of manual works and duration.
3, improve precision.Because this patent can make lattice column keep free plumbness to insert reinforcing cage, makes lattice column have better verticality.
Description of drawings
Through the more specifically explanation of the preferred embodiments of the present invention shown in the accompanying drawing, above-mentioned and other purpose, characteristic and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by real size equal proportion convergent-divergent.
Fig. 1 is a kind of stand column pile overall structure sketch map that the present invention proposes;
Fig. 2 is the stake top regional enlarged drawing of Fig. 1;
Fig. 3 a to Fig. 3 d is the case history sectional drawing on Fig. 1 king-pile top;
Fig. 4 a and Fig. 4 b are respectively main sketch map and the schematic top plan view of looking of calibrated mount construction.
The implication of each label is among Fig. 4 a and the 4b: 61, and reinforcing cage hangs muscle; 62, embedded iron; 63, jack; 64, studdle; 65, calibrated mount; 66, locating rack; 67, horizontal direction is regulated jack; 68, vertical direction is regulated jack.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment provided detailed embodiment, but protection scope of the present invention is not limited to following embodiment being to implement under the prerequisite with technical scheme of the present invention.
Referring to Fig. 1, stand column pile shown in Figure 2, comprise pile body 1 and column 2, said pile body 1 is a bored pile comparatively commonly used at present; Said column 2 is made up of the steel member, the lattice column 4 (figure representes reinforcing cage 3 with thick line, representes lattice column 4 with fine rule, to show differentiation) that comprises reinforcing cage 3 and be arranged in reinforcing cage 3 tops.Be example with certain the subway station engineering in the background technology still, the stand column pile of present embodiment has the profile of the prior art of being different from, size-modify, the concrete difference as follows:
1, in the 5 meters scopes in stake top, expands the stake bore dia of pile body 1 to 1200 millimeters by 950 millimeters.
2, stake hole enlargement district, top and the pile body of pile body 1 not the gradient of junction, hole enlargement district be 1: 8.
3, join the reinforcing cage 3 in hole enlargement district, column 2 top and the diameter of lattice column 4 according to the bored pile of 1200 mm dias; Hole enlargement district, the top degree of depth of reinforcing cage 3 need be greater than the insertion depth of lattice spare 4; For example in the present embodiment, hole enlargement in the 5 meters scopes in stake top.
4, stake hole enlargement district, top and the pile body of reinforcing cage 3 not the gradient of junction, hole enlargement district also be 1: 8.
Except that more than the main difference, this stand column pile also has other design feature: the pile body of reinforcing cage 3 not hole enlargement district adopts 16 lengthways main steel bars 31 and 200 millimeters spiral stirrup 32 to be welded, and per 2 meters spacing settings are strengthened binding round together; 16 lengthways main steel bars 33 of stake hole enlargement district, top employing of reinforcing cage 3 and 100 millimeters spiral stirrup 34 are welded; The pile body not gradient of lengthways main steel bar 31 and lengthways main steel bar 33 junctions in stake hole enlargement district, top in hole enlargement district is 1: 8; Main muscle is through being welded to connect; Welding point staggers by same cross section 50%, and weld length is 10d (diameter of lengthways main steel bar 31 and lengthways main steel bar 33), 72 millimeters of protective layer thickness.In the present embodiment, lengthways main steel bar 31 and 33 quantity are 16, certainly, in other embodiments, arrange according to the designing and calculating arrangement of reinforcement.
The concrete construction process of above-mentioned stand column pile is following:
The first step, the boring of pile body 1: bit drills to the pile body that at first uses 1200 millimeters of major diameters not hole enlargement district (following 6 meters of stake top) stops, and forms the stake hole enlargement district, top (5 meters of the degree of depth) of pile body 1 and the junction (1 meter of the degree of depth) with gradient; The rig drill bit changes 950 millimeters minor diameter into then, and twice auger spindle center overlaps before and after keeping, 70 meters of the degree of depth at the bottom of being drilled into.
Second step hung prefabricated reinforcing cage in the hole, and ground level temporarily is fixed on the cage top.
The 3rd step, lay base-line check frame housing, housing X, Y be to must designing X, Y to corresponding with lattice column, and on the calibrated mount housing, carry out X, Y to the center line mark.
The 4th step hung the lattice column 4 that presets, and inserted desired depth in pile body hole enlargement district, the pile body 1 top reinforcing cage, for example in the present embodiment was 3 meters～3.5 meters.
The 5th step, through crane reinforcing cage and lattice column to be transferred near specifying the absolute altitude place synchronously, lattice column and reinforcing cage are transferred the free plumbness of each self-sustaining in the process.
In the 6th step, after reinforcing cage reached and specifies absolute altitude, utilization was hung muscle and is fixed.
The 7th step, by putting the calibrated mount inside casing, the calibrated mount inside casing is inserted in lattice column, calibrated mount inside casing X, Y are fixing after center line aligns with housing.
The 8th step kept lattice column free vertical, through the plan-position and the axial angle of calibrated mount adjustment lattice column, and utilized level gauge control lattice column capital absolute altitude, lattice column and calibrated mount welding was fixed after reaching assigned address;
In the 9th step, clear hole and insertion conduit are built concrete under water.When building face, control speed of perfusion well, avoid lattice column 4 come-ups near lattice column 4 bottoms.
Through said structure design and construction process; Pile body 1 and the diameter at reinforcing cage 3 tops in the lattice spare plug-in effect scope have only been enlarged; Make and to insert smoothly under the condition of reinforcing cage 3 satisfying lattice column 4, greatly reduce the resource consumption and the construction costs of stand column pile.
Though the present invention with preferred embodiment openly as above; But it is not to be used for limiting claim; Any those skilled in the art are not breaking away from the spirit and scope of the present invention; Can make possible change and modification, so protection scope of the present invention should be as the criterion with the scope that claim of the present invention was defined.
Claims (7)
1. stand column pile; Comprise pile body and column; The lattice column that said column comprises reinforcing cage and is positioned at the reinforcing cage top; It is characterized in that: said pile body and reinforcing cage have not hole enlargement district of a hole enlargement district, top and pile body, and said stake hole enlargement district, top and pile body form the junction with gradient between the hole enlargement district.
2. stand column pile as claimed in claim 1 is characterized in that: the gradient of said junction is 1: 8.
3. stand column pile as claimed in claim 1 is characterized in that: stake hole enlargement district, the top diameter of said reinforcing cage greater than the lattice column catercorner length above 30 centimetres.
4. stand column pile as claimed in claim 1 is characterized in that: pile body hole enlargement district reinforcing cage is interior 3 meters～3.5 meters in the said lattice column insertion stake hole.
5. stand column pile as claimed in claim 1 is characterized in that: the pile body of reinforcing cage not hole enlargement district adopts lengthways main steel bar and spiral stirrup to be welded, and hoop is strengthened in per 2 meters spacing settings together; The stake hole enlargement district, top of reinforcing cage adopts lengthways main steel bar and spiral stirrup to be welded, and hoop is strengthened in per 2 meters spacing settings together; The pile body not gradient of lengthways main steel bar junction in lengthways main steel bar and the stake hole enlargement district, top in hole enlargement district is 1: 8, and main muscle is through being welded to connect, and welding point staggers by same cross section 50%.
6. stand column pile as claimed in claim 1 is characterized in that: the top of reinforcing cage has outer annular-stiffer hoop in the twice.
7. the job practices of a stand column pile as claimed in claim 1 comprises the steps:
The first step, the boring of pile body: at first use large diameter bit drills to pile body not stop in the hole enlargement district, form the stake hole enlargement district, top of pile body and junction with gradient; The rig drill bit changes minor diameter into then, and twice auger spindle center overlaps before and after keeping, a degree of depth at the bottom of being drilled into;
Second step hung prefabricated reinforcing cage in the hole, and ground level temporarily is fixed on the cage top;
The 3rd step, lay base-line check frame housing, housing X, Y be to must designing X, Y to corresponding with lattice column, and on the calibrated mount housing, carry out X, Y to the center line mark;
The 4th step hung prefabricated lattice column, inserted reinforcing cage interior desired depth in pile body hole enlargement district in the stake hole;
The 5th step, through crane reinforcing cage and lattice column to be transferred near specifying the absolute altitude place synchronously, lattice column and reinforcing cage are transferred the free plumbness of each self-sustaining in the process;
In the 6th step, after reinforcing cage reached and specifies absolute altitude, utilization was hung muscle and is fixed;
The 7th step, by putting the calibrated mount inside casing, the calibrated mount inside casing is inserted in lattice column, calibrated mount inside casing X, Y are fixing after center line aligns with housing;
The 8th step kept lattice column free vertical, through the plan-position and the axial angle of calibrated mount adjustment lattice column, and utilized level gauge control lattice column capital absolute altitude, lattice column and calibrated mount welding was fixed after reaching assigned address;
In the 9th step, clear hole and insertion conduit are built concrete under water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249581.3A CN102767178B (en) | 2012-07-18 | 2012-07-18 | Stand column pile and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210249581.3A CN102767178B (en) | 2012-07-18 | 2012-07-18 | Stand column pile and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102767178A true CN102767178A (en) | 2012-11-07 |
| CN102767178B CN102767178B (en) | 2015-01-28 |
Family
ID=47094728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210249581.3A Active CN102767178B (en) | 2012-07-18 | 2012-07-18 | Stand column pile and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102767178B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046542A (en) * | 2012-12-04 | 2013-04-17 | 中建三局建设工程股份有限公司 | Simultaneous construction technology for deep foundation pit inner support steel tube column and cast-in-place concrete pile |
| CN103437345A (en) * | 2013-08-29 | 2013-12-11 | 上海市机械施工集团有限公司 | Method for construction of diameter-expanding pile on pile top |
| CN103541371A (en) * | 2013-10-30 | 2014-01-29 | 北京城建亚泰建设集团有限公司 | Bearing platform for heating pipe channels to stride reserved subway station and construction method thereof |
| CN104727307A (en) * | 2015-02-03 | 2015-06-24 | 合肥市市政设计院有限公司 | Construction method for underground variable-cross-section pile column |
| CN105113715A (en) * | 2015-08-17 | 2015-12-02 | 上海建工二建集团有限公司 | Prefabricated column for reverse construction method and underground structure reverse construction method |
| CN108444121A (en) * | 2018-02-01 | 2018-08-24 | 湖北工业大学 | After bore buried tubular type pouring type energy pile heat-exchange system and its construction method |
| CN108505515A (en) * | 2018-04-16 | 2018-09-07 | 周同和 | A kind of construction method of cement mortar composite pile |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001348867A (en) * | 2001-04-13 | 2001-12-21 | Nkk Corp | Screwed type steel pipe and its work execution method |
| JP2003082657A (en) * | 2001-09-10 | 2003-03-19 | Pacific Consultants Co Ltd | Construction method of reverse pile and pile head widening reverse pile |
| CN101709580A (en) * | 2009-11-04 | 2010-05-19 | 广东三和管桩有限公司 | Concrete pipe pile |
| CN201873992U (en) * | 2010-12-10 | 2011-06-22 | 沈迪州 | Steel pipe pile with different external diameters |
| CN202688989U (en) * | 2012-07-18 | 2013-01-23 | 上海建工二建集团有限公司 | Upright pile |
-
2012
- 2012-07-18 CN CN201210249581.3A patent/CN102767178B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001348867A (en) * | 2001-04-13 | 2001-12-21 | Nkk Corp | Screwed type steel pipe and its work execution method |
| JP2003082657A (en) * | 2001-09-10 | 2003-03-19 | Pacific Consultants Co Ltd | Construction method of reverse pile and pile head widening reverse pile |
| CN101709580A (en) * | 2009-11-04 | 2010-05-19 | 广东三和管桩有限公司 | Concrete pipe pile |
| CN201873992U (en) * | 2010-12-10 | 2011-06-22 | 沈迪州 | Steel pipe pile with different external diameters |
| CN202688989U (en) * | 2012-07-18 | 2013-01-23 | 上海建工二建集团有限公司 | Upright pile |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046542A (en) * | 2012-12-04 | 2013-04-17 | 中建三局建设工程股份有限公司 | Simultaneous construction technology for deep foundation pit inner support steel tube column and cast-in-place concrete pile |
| CN103046542B (en) * | 2012-12-04 | 2015-09-30 | 中建三局建设工程股份有限公司 | Deep foundation pit inner support steel tube column and cast-in-place concrete pile construction technology simultaneously |
| CN103437345A (en) * | 2013-08-29 | 2013-12-11 | 上海市机械施工集团有限公司 | Method for construction of diameter-expanding pile on pile top |
| CN103541371A (en) * | 2013-10-30 | 2014-01-29 | 北京城建亚泰建设集团有限公司 | Bearing platform for heating pipe channels to stride reserved subway station and construction method thereof |
| CN103541371B (en) * | 2013-10-30 | 2015-07-15 | 北京城建亚泰建设集团有限公司 | Bearing platform for heating pipe channels to stride reserved subway station and construction method thereof |
| CN104727307A (en) * | 2015-02-03 | 2015-06-24 | 合肥市市政设计院有限公司 | Construction method for underground variable-cross-section pile column |
| CN105113715A (en) * | 2015-08-17 | 2015-12-02 | 上海建工二建集团有限公司 | Prefabricated column for reverse construction method and underground structure reverse construction method |
| CN108444121A (en) * | 2018-02-01 | 2018-08-24 | 湖北工业大学 | After bore buried tubular type pouring type energy pile heat-exchange system and its construction method |
| CN108505515A (en) * | 2018-04-16 | 2018-09-07 | 周同和 | A kind of construction method of cement mortar composite pile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102767178B (en) | 2015-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102767178B (en) | Stand column pile and construction method thereof | |
| CN102767182B (en) | Verticality adjustment system for lattice column correcting mount and construction method thereof | |
| CN110397076B (en) | Construction method of deep-water large-diameter cast-in-place pile | |
| CN205296874U (en) | Information -based construction monitor positioning device of stake integration | |
| CN105887811B (en) | Ultra-deep weak soil pile integral construction method is monitored based on precise informationization | |
| CN105064328A (en) | Construction device and method for pile foundation | |
| CN112663600A (en) | Construction method of cast-in-situ bored pile for water-rich sandy stratum | |
| CN107642041A (en) | The hollow clump of piles anchorage of super-large diameter | |
| CN202688989U (en) | Upright pile | |
| CN106245628A (en) | A kind of method for filling of corrosion geology large diameter drill hole pile under water | |
| CN202689063U (en) | Calibrating bracket verticality adjusting system of lattice column | |
| CN105002915A (en) | Construction method of steel casing guard wall of manual hole digging pile | |
| CN104264708A (en) | Sequential construction technology for underground diaphragm wall of highline rotational-flow pond | |
| CN114413839B (en) | Device and method for monitoring complete stacking section of up-down stacking type tunnel | |
| CN109183831B (en) | Become the multistage load stake of stake diameter string hole and its construction method | |
| CN104264683A (en) | Concave ultra-deep foundation pit zoned supporting method for three-side surrounded cultural protection building | |
| CN106758759B (en) | A kind of trestle pile foundation and its anchoring process for deep water drift net riverbed | |
| CN107642040A (en) | The construction method heavy stone used as an anchor of the hollow clump of piles anchorage of super-large diameter | |
| CN101503878B (en) | Construction method for building foundation pit enclosure structure with thin-walled cylinder pile as fender post | |
| CN106480878A (en) | A kind of upper and lower part expansion type soil cement is combined pile tube | |
| CN207484290U (en) | The hollow clump of piles anchorage of super-large diameter | |
| CN218148483U (en) | Tower crane foundation structure | |
| CN206477240U (en) | A kind of trestle pile foundation for deep water drift net riverbed | |
| CN206233232U (en) | A kind of upper and lower part expansion type soil cement is combined pile tube | |
| CN108560566A (en) | The recyclable steel pipe column of combined type and its method for supporting deep foundation pit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Gu Yanghua Inventor after: He Yongshun Inventor after: Mao Anji Inventor before: Gu Yanghua Inventor before: He Yongshun |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: GU YANGHUA HE YONGSHUN TO: GU YANGHUA HE YONGSHUN MAO ANJI |