CN102041806A - Construction method for inserting steel column in bored pile - Google Patents
Construction method for inserting steel column in bored pile Download PDFInfo
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- CN102041806A CN102041806A CN2009100709271A CN200910070927A CN102041806A CN 102041806 A CN102041806 A CN 102041806A CN 2009100709271 A CN2009100709271 A CN 2009100709271A CN 200910070927 A CN200910070927 A CN 200910070927A CN 102041806 A CN102041806 A CN 102041806A
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Abstract
The present invention relates to a construction method for inserting steel column in bored pile, comprising the following steps: (1) forming a pile hole of a bored pile; (2) hoisting a reinforcement cage; (3) pouring concretes; (4) hoisting a steel protection pipe; (5) cleaning the pile hole and placing a steel column bottom fixer; (6) hoisting a steel column, so as to complete the installation of the steel column; a top end of the hoisted reinforcement cage in the step (2) is coaxially and fixedly provided with a steel sleeve; the inner diameter of the steel sleeve is identical to the diameter of the pile hole; elevation at a top end of the steel sleeve is the same as the elevation at the top of the bored pile. The steps of construction technology of the present invention are simple; constructional time is shortened; working efficiency is improved; and constructional cost can be reduced effectively; and the present invention is a construction method for inserting steel column in bored pile with relatively high safety.
Description
Technical field
The invention belongs to the realm of building construction, insert the job practices of steel column in especially a kind of bored pile.
Background technology
Increasing at present underground structure civilian and civic building adopts reverse construction, for carrying out smoothly of guaranteeing to construct, and take into account the superstructure construction, usually the pillar of lower part adopts the steel column form, the design of steel column can be steel pipe column or steel lattice column, concrete perfusion in the steel pipe column, the steel lattice column external wrapping concrete, steel column will insert in the bored pile under it in construction requirement, insertion depth is about 2000mm, and bored pile and pillar construction finish and just can begin the construction of underground structure according to the sequence of construction of contrary sequence method: cut the earth → negative one deck beam slab → cut the earth → negative two layers of beam slab again ...Insert in the existing bored pile and comprise the steps: 1 in the job practices of steel column, the grout pile hole forming: utilize pile driver moulding stake hole; 2, lifting reinforcing cage: will weld good reinforcing cage and hang in the hole; 3, concreting: 4, hang the precast concrete casing: 5, on the precast concrete casing, lift the steel pillar identical: 6, clear up the stake hole and lay steel column bottom fixator with its internal diameter: 7, lifting steel column, finish the steel column installation.This job practices processing step complexity, the engineering time is long, and construction cost is higher, and efficiency of construction is lower, and safety is relatively poor.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the job practices of inserting steel column is provided in a kind of bored pile, and this method construction technology step is simple, shortened the engineering time, improved operating efficiency, can effectively reduce construction cost and safety is higher.
The present invention solves its technical problem and is achieved through the following technical solutions:
Insert the job practices of steel column in a kind of bored pile, comprise the steps: (1) grout pile hole forming; (2) lifting reinforcing cage; (3) concreting; (4) lifting steel pillar; (5) cleaning stake hole and lay steel column bottom fixator; (6) the lifting steel column is finished steel column and is installed, its in step (2) the coaxial steel bushing that installs in the reinforcing cage top that lifts, the internal diameter of this steel bushing is identical with a bore dia, the top absolute altitude of steel bushing is identical with castinplace pile top mark height.
And, weld anchor bar below the retainer bottom of described column bottom.
And described anchor bar quantity is N, 1≤N≤20.
And the height H of described steel bushing equals steel column and inserts the height H 2 that the interior length H1 of castinplace pile adds the steel column fixator.
And described steel bushing is by connecting the steel plate coaxial welding on reinforcing cage top.
Advantage of the present invention and beneficial effect are:
1, lifting the coaxial steel bushing that installs in reinforcing cage top in the job practices of insertion steel column in this bored pile, the internal diameter of this steel bushing is identical with the stake bore dia, the top absolute altitude of steel bushing is identical with castinplace pile top mark height, this structure has been saved the lifting of precast concrete casing in construction, shortened the engineering time, improve operating efficiency, reduced construction cost.
2, the application of inserting steel bushing in the job practices of steel column in this bored pile can also be built castinplace pile and the concrete template of steel column adapter section as secondary, plays the effect that prevents that the hole wall earthwork from caving in simultaneously, has strengthened safety.
3, the application of inserting steel bushing in the job practices of steel column in this bored pile can also replace the reinforcing bar of the stake in the certain altitude scope, and certain altitude has reduced engineering cost for the steel bushing height deducts with stake bar splicing weldering length.
4, construction technology step of the present invention simple, shortened the engineering time, improved operating efficiency, can effectively reduce construction cost, be the job practices of inserting steel column in the higher bored pile of a kind of safety.
Description of drawings
Fig. 1 is the structural representation behind the insertion steel column in the bored pile.
The specific embodiment
The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
Insert the job practices of steel column in a kind of bored pile, comprise the steps:
(1) grout pile hole forming: do bank protection and handle, prevent that the hole upper port earthwork from caving in, pile driver is the stake hole forming, a cleaning stake hole;
(2) lifting reinforcing cage 6;
(3) concreting 7;
(4) lifting steel pillar plays the effect of protection stake hole wall;
(5) a cleaning stake hole: mainly be that mud and operating personnel enter in the hole in the pump drainage stake hole, cleaning pile crown concrete and other foreign material are also laid steel column bottom fixator 8, welding anchor bar 9 below this retainer bottom, anchor bar quantity is N, 1≤N≤20, present embodiment anchor bar quantity shown in the drawings is 2, and steel column bottom fixator and reinforcing cage welding are fixing;
(6) lifting steel column 2 enters accurate position, finishes steel column and installs.
In order to ensure the stability of steel column, on the outer wall of steel column, be fixed with peg 4; In step (2) the coaxial steel bushing 5 that installs in the reinforcing cage top that lifts, the present embodiment steel bushing is welded to reinforcing cage top by connecting steel plate 10, the internal diameter of this steel bushing is identical with the stake bore dia, the top absolute altitude of steel bushing is identical with castinplace pile top mark height, and the height H of this steel bushing equals steel column and inserts the height H 2 that the interior length H1 of castinplace pile adds the steel column fixator; In step (3) the steel pillar is lifted the steel bushing upper end, steel pillar internal diameter is identical with the steel bushing internal diameter.
To pour into a mould the concrete between castinplace pile and the steel column joint portion after steel column installs in integral construction of the present invention, and treat to extract the steel pillar of installing in the step (4) behind the concrete formation, irritate back-up sand in the space 3 between grout pile hole wall 1 and steel column.
Claims (5)
1. insert the job practices of steel column in the bored pile, comprise the steps: (1) grout pile hole forming; (2) lifting reinforcing cage; (3) concreting; (4) lifting steel pillar; (5) cleaning stake hole and lay steel column bottom fixator; (6) lifting steel column is finished steel column and is installed; It is characterized in that:
In step (2) the coaxial steel bushing that installs in the reinforcing cage top that lifts, the internal diameter of this steel bushing with the stake bore dia identical, the top absolute altitude of steel bushing is identical with castinplace pile top mark height.
2. insert the job practices of steel column in the bored pile according to claim 1, it is characterized in that: axially be welded with anchor bar below the described retainer bottom.
3. insert the job practices of steel column in the bored pile according to claim 2, it is characterized in that: described anchor bar quantity is N, 1≤N≤20.
4. insert the job practices of steel column in the bored pile according to claim 1, it is characterized in that: the height H of described steel bushing equals steel column and inserts the height H 2 that the interior length H1 of castinplace pile adds the steel column fixator.
5. insert the job practices of steel column in the bored pile according to claim 1, it is characterized in that: described steel bushing is by connecting the steel plate coaxial welding on reinforcing cage top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100709271A CN102041806A (en) | 2009-10-22 | 2009-10-22 | Construction method for inserting steel column in bored pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100709271A CN102041806A (en) | 2009-10-22 | 2009-10-22 | Construction method for inserting steel column in bored pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102041806A true CN102041806A (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100709271A Pending CN102041806A (en) | 2009-10-22 | 2009-10-22 | Construction method for inserting steel column in bored pile |
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| CN (1) | CN102041806A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205964A (en) * | 2013-04-01 | 2013-07-17 | 中冶交通工程技术有限公司 | Cast-in-place pile construction method using steel pipe column splicing piles |
| CN104153403A (en) * | 2014-08-08 | 2014-11-19 | 中国建筑第八工程局有限公司 | Construction method for reverse construction method cast-in-place pile static load test pile |
| CN107012880A (en) * | 2017-02-24 | 2017-08-04 | 中铁二十五局集团第五工程有限公司 | A kind of pile pier structure of the empty rail of suspension type |
| CN107034876A (en) * | 2017-05-23 | 2017-08-11 | 上海建工建集团有限公司 | Stanchion connecting node and its construction method in one pile for one column construction |
| CN108360746A (en) * | 2018-03-30 | 2018-08-03 | 中铁第四勘察设计院集团有限公司 | A kind of column pilework and its construction method |
| CN110670584A (en) * | 2019-09-05 | 2020-01-10 | 中冶交通建设集团有限公司 | Cast-in-situ bored pile and construction method thereof |
-
2009
- 2009-10-22 CN CN2009100709271A patent/CN102041806A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103205964A (en) * | 2013-04-01 | 2013-07-17 | 中冶交通工程技术有限公司 | Cast-in-place pile construction method using steel pipe column splicing piles |
| CN104153403A (en) * | 2014-08-08 | 2014-11-19 | 中国建筑第八工程局有限公司 | Construction method for reverse construction method cast-in-place pile static load test pile |
| CN104153403B (en) * | 2014-08-08 | 2016-08-17 | 中国建筑第八工程局有限公司 | The construction method of contrary sequence method bored concrete pile static load test pile |
| CN107012880A (en) * | 2017-02-24 | 2017-08-04 | 中铁二十五局集团第五工程有限公司 | A kind of pile pier structure of the empty rail of suspension type |
| CN107034876A (en) * | 2017-05-23 | 2017-08-11 | 上海建工建集团有限公司 | Stanchion connecting node and its construction method in one pile for one column construction |
| CN108360746A (en) * | 2018-03-30 | 2018-08-03 | 中铁第四勘察设计院集团有限公司 | A kind of column pilework and its construction method |
| CN108360746B (en) * | 2018-03-30 | 2023-11-28 | 中铁第四勘察设计院集团有限公司 | Upright post pile structure and construction method thereof |
| CN110670584A (en) * | 2019-09-05 | 2020-01-10 | 中冶交通建设集团有限公司 | Cast-in-situ bored pile and construction method thereof |
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| PB01 | Publication | ||
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Application publication date: 20110504 |