CN103603346A - Construction method for drawing-resistant thorn-shaped pile - Google Patents
Construction method for drawing-resistant thorn-shaped pile Download PDFInfo
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- CN103603346A CN103603346A CN201310480828.7A CN201310480828A CN103603346A CN 103603346 A CN103603346 A CN 103603346A CN 201310480828 A CN201310480828 A CN 201310480828A CN 103603346 A CN103603346 A CN 103603346A
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Abstract
The invention relates to a construction method for a building pile, in particular to a construction method for a drawing-resistant thorn-shaped pile. The method includes the following procedures that A. pile prefabricating including that a hollow reinforced concrete pile body with a plurality of thorn-shaped pile holes distributed in the peripheral wall is prefabricated according to a design requirement, and a direct grouting hole is formed in the reinforced concrete pile body wall on the upper portion of each thorn-shaped pile oppositely; B. pile placing including that a hole is formed in a foundation soil body, and the reinforced concrete pile body is lowered into the hole to the preset position, or pile sinking is conducted while the hole is dug till the pile reaches the preset position; C. bottom sealing including that after the reinforced concrete pile body is lowered into the preset position, concrete is poured into the hollow space in the reinforced concrete pile body, and bottom sealing at the bottom end in the reinforced concrete pile body is achieved; D. pile pressing including that a grouting pile with grouting holes in the axial direction is pressed into the soil body in a pressing mode through the thorn-shaped holes in the reinforced concrete pile body from the inside to the outside; E. grouting; F. pile body reinforcement; G. later-period installation.
Description
Technical field
The present invention relates to a kind of construction method of building stake, specifically the construction method of a kind of anti-pulling thorn stake.
Background technology
General pile body is cylindric, easily produces loosening or longitudinal sliding motion in the soft soil body, occurs the phenomenons such as pulling capacity is inadequate, side direction shearing resistance is not enough, the ability anti-dynamic loading of side direction is inadequate.For good reinforcing locating effect, increasing friction force, strengthens location, and common way can only increase the length of pile body, and the insertion foundation soil body of trying one's best dark, has so just increased difficulty and cost to construction, has increased greatly pile body deadweight simultaneously.
Summary of the invention
The defect that the present invention exists in order to make up existing pile body, provides a kind of anti-pulling to sting the construction method of stake, and the method can improve the anti-pulling performance of pile body effectively, and construction cost also reduces widely.
The present invention is achieved by the following technical solutions: the construction method of a kind of anti-pulling thorn stake, by following operation, undertaken:
A. preformed pile: by designing requirement, precast the hollow reinforced concrete pile bodies that perisporium is distributed with some thorn stakes hole, be positioned at and relatively on the reinforced concrete pile body wall on each thorn stake top, hole have a direct injected hole;
B. lower: foundation soil body pore-forming, reinforced concrete pile body is transferred to Kong Zhongzhi precalculated position; Or borehole limit, limit pile sinking is to precalculated position;
C. back cover: reinforced concrete pile body transfer to behind precalculated position along the hollow concreting of reinforced concrete pile body, realize the back cover of reinforced concrete pile body inner bottom;
D. piling: by the thorn stake hole on reinforced concrete pile body, the grouting pile spinning that axially has injected hole is entered to the soil body from inside to outside;
E. slip casting: along the injected hole slip casting of grouting pile; Slip casting drill bit of drilling machine carries out slip casting through direct injected hole, the insertion soil body to grouting pile top;
F. pile body is reinforced: by direct injected hole, directly to the space between reinforced concrete pile body outer wall and the soil body, carry out slip casting;
G. the later stage installs: drawing structure is connected in reinforced concrete pile body top, completes thorn pile driving construction.
Drawing structure in G step of the present invention is structure known in this field, can adopt any this area routine techniques that drawing structure is connected in to reinforced concrete pile body top.
During concrete application, grouting pile and reinforced concrete pile body form thorn-like, then the injected hole slip casting of suitable grouting pile, slurry infiltrates soil body gap, and the soil body is cured, and grouting pile stretches into one end of the soil body and the curing soil body is bonded as one, form very strong holdback force, locating effect is good; Slip casting drill bit of drilling machine carries out slip casting through direct injected hole to grouting pile top, and the soil body of grouting pile top is cured and is bonded as one with grouting pile, good positioning effect, and anti-pulling ability is strong; By direct injected hole to the slip casting of reinforced concrete pile body outer wall, the slurry injecting has been clogged the space between pile body outer wall and the soil body, and slurry infiltrates soil body gap, the soil body is cured, pile body outer wall and the curing soil body are bonded as one, form the effect that expands pile body diameter, also greatly increased longitudinal frictional resistance of pile body.
Adopt construction method of the present invention, can shorten greatly pile body length, the anti-pulling thorn stake that this construction method is made can form very strong holdback force with the soil body, greatly increased the frictional resistance of thorn stake with the soil body, form locating effect well, the anti-pulling ability of pile body, side direction shearing resistance, the anti-dynamic loading ability of side direction improve greatly, do not need the pile body of growing very much just can reach the needs of safe construction, saved pile foundation investment, be easy to apply.
Accompanying drawing explanation
Fig. 1 is the thorn pilework schematic diagram before the construction method G step of anti-pulling of the present invention thorn stake.
Fig. 2 is the enlarged drawing of A part in Fig. 1.
Fig. 3 is the thorn pilework schematic diagram before concreting in the construction method G step of anti-pulling of the present invention thorn stake.
In figure: 1-reinforced concrete pile body, 2-thorn stake hole, 3-grouting pile, 4-injected hole, the direct injected hole of 5-, 6-top reinforcing bar, 7-inner support template, 8-reinforced frame, 9-exterior sheathing, 10-drawing structure.
The specific embodiment
A construction method for anti-pulling thorn stake, by following operation, undertaken:
A. preformed pile: by designing requirement, precast the hollow reinforced concrete pile bodies 1 that perisporium is distributed with some thorn stakes hole 2, be positioned at and relatively on reinforced concrete pile body 1 wall on each thorn stake 2 top, hole have a direct injected hole 5;
B. lower: foundation soil body pore-forming, reinforced concrete pile body 1 is transferred to Kong Zhongzhi precalculated position; Or borehole limit, limit pile sinking is to precalculated position;
C. back cover: reinforced concrete pile body 1 transfer to behind precalculated position along the hollow concreting of reinforced concrete pile body 1, realize the back cover of reinforced concrete pile body 1 inner bottom;
D. piling: by the thorn stake hole 2 on reinforced concrete pile body 1, grouting pile 3 spinning that axially have injected hole 4 are entered to the soil body from inside to outside;
E. slip casting: along injected hole 4 slip castings of grouting pile 3; Slip casting drill bit of drilling machine carries out slip casting through direct injected hole 5, the insertion soil body to grouting pile 3 tops;
F. pile body is reinforced: by direct injected hole 5, directly to the space between reinforced concrete pile body 1 outer wall and the soil body, carry out slip casting;
G. the later stage installs: drawing structure 10 is connected in reinforced concrete pile body 1 top, completes thorn pile driving construction.
The concrete operation of described G step is:
G1: reinforced concrete pile body 1 upper inner supports inner support template 7 is installed;
G2: cut the concrete on reinforced concrete pile body 1 top, leave top reinforcing bar 6, reinforced concrete pile body 1 inwall that is positioned at inner support template 7 tops carries out dabbing processing;
G3: assembling reinforcement frame 8 in inner support template 7, the main muscle of reinforced frame 8 is connected with the main muscle of top reinforcing bar 6;
G4: in the outside exterior sheathing 9 of installing of top reinforcing bar 6, concreting between exterior sheathing 9 and inner support template 7 defaults in drawing structure 10 in concrete simultaneously, completes the construction of thorn stake.
Adopt the concrete operation of above-mentioned G step, can make better drawing structure 10 and reinforced concrete pile body 1 become one structure, increased the life cycle of drawing structure 10.
Further, the thorn stake axis in hole 2 and the axis of reinforced concrete pile body 1 are perpendicular.The reinforced concrete pile body 1 of this structure, with respect to other structures, is more convenient for prefabricated.
Further, some thorn stakes hole 2 is from top to bottom divided into some thorn stakes hole group, and the thorn stake hole 2 in one group of thorn stake hole group is uniformly distributed on the same circumference of reinforced concrete pile body 1.Above-mentioned thorn stake hole 2 be arranged so that grouting pile 3 is when being pressed into the soil body, can not cause pile body all directions discontinuity, the holdback force balanced distribution that simultaneously grouting pile 3 and the curing soil body form.
Claims (4)
1. a construction method for anti-pulling thorn stake, is characterized in that, by following operation, is undertaken:
A. preformed pile: by designing requirement, precast the hollow reinforced concrete pile bodies (1) that perisporium is distributed with some thorn stake holes (2), be positioned at the relative direct injected hole (5) that has on reinforced concrete pile body (1) wall on each thorn stake top, hole (2);
B. lower: foundation soil body pore-forming, reinforced concrete pile body (1) is transferred to Kong Zhongzhi precalculated position; Or borehole limit, limit pile sinking is to precalculated position;
C. back cover: reinforced concrete pile body (1) transfer to behind precalculated position along the hollow concreting of reinforced concrete pile body (1), realize the back cover of reinforced concrete pile body (1) inner bottom;
D. piling: by the thorn stake hole (2) on reinforced concrete pile body (1), grouting pile (3) spinning that axially has injected hole (4) is entered to the soil body from inside to outside;
E. slip casting: along injected hole (4) slip casting of grouting pile (3); Slip casting drill bit of drilling machine carries out slip casting through direct injected hole (5), the insertion soil body to grouting pile (3) top;
F. pile body is reinforced: by direct injected hole (5), directly to the space between reinforced concrete pile body (1) outer wall and the soil body, carry out slip casting;
G. the later stage installs: drawing structure (10) is connected in reinforced concrete pile body (1) top, completes thorn pile driving construction.
2. the construction method of a kind of anti-pulling thorn according to claim 1 stake, is characterized in that, the concrete operation of described G step is:
G1: reinforced concrete pile body (1) upper inner supports inner support template (7) is installed;
G2: cut the concrete on reinforced concrete pile body (1) top, leave top reinforcing bar (6), reinforced concrete pile body (1) inwall that is positioned at inner support template (7) top carries out dabbing processing;
G3: at the upper assembling reinforcement frame (8) of inner support template (7), the main muscle of reinforced frame (8) is connected with the main muscle of top reinforcing bar (6);
G4: in the outside exterior sheathing (9) of installing of top reinforcing bar (6), concreting between exterior sheathing (9) and inner support template (7) defaults in drawing structure (10) in concrete simultaneously, completes the construction of thorn stake.
3. the construction method of a kind of anti-pulling thorn according to claim 1 and 2 stake, is characterized in that, the axis in thorn stake hole (2) and the axis of reinforced concrete pile body (1) are perpendicular.
4. a kind of anti-pulling according to claim 3 is stung the construction method of stake, it is characterized in that, some thorn stake holes (2) are from top to bottom divided into some thorn stakes hole group, and the thorn stake hole (2) in one group of thorn stake hole group is uniformly distributed on the same circumference of reinforced concrete pile body (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310480828.7A CN103603346B (en) | 2013-10-15 | 2013-10-15 | Construction method for drawing-resistant thorn-shaped pile |
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| CN201310480828.7A CN103603346B (en) | 2013-10-15 | 2013-10-15 | Construction method for drawing-resistant thorn-shaped pile |
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| CN103603346A true CN103603346A (en) | 2014-02-26 |
| CN103603346B CN103603346B (en) | 2015-06-03 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975595A (en) * | 2014-04-13 | 2015-10-14 | 季德樑 | Strengthened pile |
| CN105926588A (en) * | 2016-05-07 | 2016-09-07 | 哈尔滨共阳科技咨询有限公司 | Novel building steel pile |
| CN106087976A (en) * | 2016-08-01 | 2016-11-09 | 三峡大学 | A kind of prefabricated friction pile of new concrete and pile sinking process |
| CN107476298A (en) * | 2017-09-22 | 2017-12-15 | 国家电网公司 | A kind of overhead transmission line concrete precast pipe pile implantation pile sinking platform and method |
| CN108360509A (en) * | 2018-05-02 | 2018-08-03 | 金陵科技学院 | A kind of shock-absorbing type uplift pile with ribbing of assembled and its construction method |
| CN109252534A (en) * | 2018-11-13 | 2019-01-22 | 福建博海工程技术有限公司 | A kind of foundation pile structure |
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| JPH11280067A (en) * | 1998-01-28 | 1999-10-12 | Mitani Sekisan Co Ltd | Method for embedding existing concrete pile and structure of foundation pile and existing concrete pile |
| CN2398333Y (en) * | 1999-11-02 | 2000-09-27 | 刘次西 | Pile body containing thorn pile |
| CN201158817Y (en) * | 2008-06-18 | 2008-12-03 | 南京建工集团有限公司 | Reinforcing pile |
| CN202672140U (en) * | 2012-05-29 | 2013-01-16 | 上海长凯岩土工程有限公司 | Anchor rod static pressure anti-pulling steel pipe pile with lower portion grouted |
| CN203160231U (en) * | 2013-02-05 | 2013-08-28 | 成都科创佳思科技有限公司 | Barbed building pile |
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2013
- 2013-10-15 CN CN201310480828.7A patent/CN103603346B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11280067A (en) * | 1998-01-28 | 1999-10-12 | Mitani Sekisan Co Ltd | Method for embedding existing concrete pile and structure of foundation pile and existing concrete pile |
| CN2398333Y (en) * | 1999-11-02 | 2000-09-27 | 刘次西 | Pile body containing thorn pile |
| CN201158817Y (en) * | 2008-06-18 | 2008-12-03 | 南京建工集团有限公司 | Reinforcing pile |
| CN202672140U (en) * | 2012-05-29 | 2013-01-16 | 上海长凯岩土工程有限公司 | Anchor rod static pressure anti-pulling steel pipe pile with lower portion grouted |
| CN203160231U (en) * | 2013-02-05 | 2013-08-28 | 成都科创佳思科技有限公司 | Barbed building pile |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975595A (en) * | 2014-04-13 | 2015-10-14 | 季德樑 | Strengthened pile |
| CN105926588A (en) * | 2016-05-07 | 2016-09-07 | 哈尔滨共阳科技咨询有限公司 | Novel building steel pile |
| CN106087976A (en) * | 2016-08-01 | 2016-11-09 | 三峡大学 | A kind of prefabricated friction pile of new concrete and pile sinking process |
| CN106087976B (en) * | 2016-08-01 | 2018-01-05 | 三峡大学 | A kind of concrete prefabricated friction pile and pile sinking process |
| CN107476298A (en) * | 2017-09-22 | 2017-12-15 | 国家电网公司 | A kind of overhead transmission line concrete precast pipe pile implantation pile sinking platform and method |
| CN108360509A (en) * | 2018-05-02 | 2018-08-03 | 金陵科技学院 | A kind of shock-absorbing type uplift pile with ribbing of assembled and its construction method |
| CN108360509B (en) * | 2018-05-02 | 2023-10-10 | 新疆川涛建设工程有限公司 | Assembled ribbed damping type uplift pile and construction method thereof |
| CN109252534A (en) * | 2018-11-13 | 2019-01-22 | 福建博海工程技术有限公司 | A kind of foundation pile structure |
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| Publication number | Publication date |
|---|---|
| CN103603346B (en) | 2015-06-03 |
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