CN101922152B - Pile foundation structure of reinforcing pile - Google Patents
Pile foundation structure of reinforcing pile Download PDFInfo
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- CN101922152B CN101922152B CN2009103031509A CN200910303150A CN101922152B CN 101922152 B CN101922152 B CN 101922152B CN 2009103031509 A CN2009103031509 A CN 2009103031509A CN 200910303150 A CN200910303150 A CN 200910303150A CN 101922152 B CN101922152 B CN 101922152B
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- pile foundation
- pile
- support table
- foundation support
- bearing platform
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Abstract
The invention discloses a pile foundation structure of a reinforcing pile. The structure comprises a conventional pile foundation bearing platform (1); the pile foundation circumference of the conventional pile foundation bearing platform (1) is provided with soil composite piles (2); a pile body of the conventional pile foundation bearing platform (1) is provided with burrs and connected with newly embedded steel bars (3); the newly embedded steel bars (3) and the soil composite piles (2) are mutually staggered; and newly increased bearing platform concrete (4) is poured around the pile foundation bearing platform (1) and the soil composite piles (2). The stressed area of the pile foundation bearing platform can be enlarged by arranging the soil composite piles on the pile foundation circumference of the conventional pile foundation bearing platform; the pile body of the conventional pile foundation bearing platform is roughened and connected with the newly embedded steel bars, and the newly increased bearing platform concrete is poured around the pile foundation bearing platform and the soil composite piles so that the conventional pile foundation bearing platform and the soil composite piles are interconnected more tightly to form a whole and the newly increased piles and the conventional pile foundation bearing platform are stressed together.
Description
Technical field
The present invention relates to a kind of piling strtucture of reinforcing pile, belong to the factory building technical field.
Background technology
In actual engineering; Because the construction of structures upper load is bigger; Adopt the pile foundation basis in the increasing engineering, but owing to the weight of equipment in the complexity, particularly industrial equipment load and manual of upper load has greater difference; Or, make existing Pile Foundations Design bearing capacity not enough because of the increase of building height causes load to increase.The bearing capacity of pile foundation deficiency or the pile foundation settlement that also have construction reason to cause simultaneously are excessive, make piling strtucture be in unsafe condition, and not enough or stake side soil makes pile foundation settlement because the excessive negative skin friction of pile that causes of disturbance is not enough like pile foundation verticality in the construction.Therefore with regard to needing existing pile foundation support table is carried out consolidation process; And existing solution is selected for use ting model equipment to reduce weight of equipment exactly or is reduced the floor load, but these more are to have satisfied not actual demand; Another kind of way is exactly at the new piling base of existing pile foundation support table periphery, directly reinforces with pile foundation support table, and the problem that the method exists is: 1, new piling is less to the restraint forces of existing pile foundation, causes pile foundation to sink to quickening; 2, the contact surface of new and old pile foundation makes to reinforce and lost efficacy because anti-shearing deficiency can make new underpinning part and existing basis is not whole stressed.
Summary of the invention
The technical problem that the present invention will solve is, the piling strtucture of the stressed reinforcing pile of good, newly-increased pile foundation support table of a kind of consolidation effect and existing pile foundation support table integral body is provided, and can overcome the deficiency of prior art.
Technical scheme of the present invention; It comprises existing pile foundation support table; Around the pile foundation of existing pile foundation support table, be provided with soil body composite pile; The cushion cap body of existing pile foundation support table is burr; And on the cushion cap body of existing pile foundation support table, be connected with the planting reinforcing bar, planting reinforcing bar and soil body composite pile are interlaced, have built newly-increased cushion cap concrete at the periphery of pile foundation support table and soil body composite pile.
On the cushion cap body of existing pile foundation support table, offer tenon type groove.
In tenon type groove, built the microdilatancy concrete.
Being exposed at the existing external planting reinforcing bar length of pile foundation support table cushion cap outward is 0.8～1.2 meter.
On cushion cap body that has pile foundation support table now and soil body composite pile, be provided with the interface bonding agent layer.
Around pile foundation support table, be provided with reinforcing bar.
Spacing between the tenon type groove is 0.8m～1.2m, and the length and width of tenon type groove is 0.3m～0.4m with height.
Compare with prior art, the present invention so just can increase the lifting surface area of pile foundation support table through around the pile foundation of existing pile foundation support table, establishing soil body composite pile; With the cushion cap body of existing pile foundation support table is hacking; On the cushion cap body of existing pile foundation support table, connect the planting reinforcing bar, build newly-increased cushion cap concrete at the periphery of pile foundation support table and soil body composite pile then, so just can make existing pile foundation support table and soil body composite pile interconnect tightr; Form integral body, make newly-increased stake stressed jointly with existing pile foundation support table.On the cushion cap body of existing pile foundation support table, offer tenon type groove, in tenon type groove, built the microdilatancy concrete, can further increase the frictional force between existing pile foundation support table and the newly-increased stake like this, make newly-increased stake stressed jointly with existing stake; Being exposed at the existing external planting reinforcing bar length of pile foundation support table cushion cap outward is 0.8～1.2 meter; Spacing between the tenon type groove is 0.8m～1.2m; The length and width of tenon type groove is 0.3m～0.4m with height; These data are applicant's great amount of calculation gained, its objective is the bonding strength that satisfies between newly-increased stake and the existing stake; On the contact surface of cushion cap body that has pile foundation support table now and newly-increased cushion cap concrete, establish the interface bonding agent layer, can prevent like this to ftracture between existing pile foundation support table and the soil body composite pile; Around soil body composite pile, be provided with reinforcing bar, can make pile foundation support table satisfy bending resistance, anti-shearing effect like this.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiment 1: as shown in Figure 1, the operation of newly-increased pile foundation is following, and first through calculating the difference of imposed load and bearing capacity of pile foundation, calculates the area that adds cushion cap according to difference, will dig then and open the pile foundation support table soil body on every side; Second will have pile foundation support table 1 now the cushion cap body carry out hacking and reveal muscle, the loose part concrete is destroyed, and on the cushion cap body every in the long scope of 0.8m～1.2m with pneumatic pick or miscellaneous equipment mortise type groove 5, the length and width of tenon type groove 5 is 0.3m～0.4m with height.The 3rd on existing pile foundation support table 1 planting reinforcing bar 3, the protruded length of planting reinforcing bar 3 is 0.8～1.2 meter; The 4th is provided with reinforcing bar at existing pile foundation support table 1 periphery, and through the die-cut size that calculates shear reinforcement, its arrangement of reinforcement must not be less than φ 12200; The 5th presses cement-soil paddling process and jet grounting build soil body composite pile 2 around existing pile foundation support table 1, adopt cement-soil paddling process and jet grounting to reinforce surrounding soil, and soil bearing capacity is strengthened.The 6th brushes the interface bonding agent layer on cushion cap body that is having pile foundation support table 1 now and soil body composite pile 2; The 7th builds the microdilatancy concrete in tenon type groove 5; Built newly-increased cushion cap concrete 4 at the pile foundation support table 1 and the periphery of soil body composite pile 2; The concrete class of microdilatancy concrete and newly-increased cushion cap concrete 4 needs to improve one-level than the basis of existing foundation pile cushion cap 1; Concrete is built to finish and is carried out maintenance, to be tested qualified after the backfill soil body immediately, in order to avoid increase disturbance to the soil body.
Claims (7)
1. the piling strtucture of a reinforcing pile; It comprises existing pile foundation support table (1); It is characterized in that: around the pile foundation of existing pile foundation support table (1), be provided with soil body composite pile (2), the cushion cap body of existing pile foundation support table (1) is burr, and on the cushion cap body of existing pile foundation support table (1), is connected with planting reinforcing bar (3); Planting reinforcing bar (3) is interlaced with soil body composite pile (2), has built newly-increased cushion cap concrete (4) at the pile foundation support table (1) and the periphery of soil body composite pile (2).
2. the piling strtucture of reinforcing pile according to claim 1 is characterized in that: on the cushion cap body of existing pile foundation support table (1), offer tenon type groove (5).
3. the piling strtucture of reinforcing pile according to claim 2 is characterized in that: in tenon type groove (5), built the microdilatancy concrete.
4. the piling strtucture of reinforcing pile according to claim 1, it is characterized in that: the length that is exposed at the external planting reinforcing bar (3) of existing pile foundation support table (1) cushion cap outward is 0.8～1.2 meter.
5. the piling strtucture of reinforcing pile according to claim 1 is characterized in that: on cushion cap body that has pile foundation support table (1) now and soil body composite pile (2), be provided with the interface bonding agent layer.
6. the piling strtucture of reinforcing pile according to claim 1 is characterized in that: be provided with reinforcing bar on every side at pile foundation support table (1).
7. according to the piling strtucture of claim 2 or 3 described reinforcing piles, it is characterized in that: the spacing between the tenon type groove (5) is 0.8m～1.2m, and the length and width of tenon type groove (5) is 0.3m～0.4m with height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103031509A CN101922152B (en) | 2009-06-11 | 2009-06-11 | Pile foundation structure of reinforcing pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009103031509A CN101922152B (en) | 2009-06-11 | 2009-06-11 | Pile foundation structure of reinforcing pile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101922152A CN101922152A (en) | 2010-12-22 |
| CN101922152B true CN101922152B (en) | 2012-11-07 |
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ID=43337342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009103031509A Expired - Fee Related CN101922152B (en) | 2009-06-11 | 2009-06-11 | Pile foundation structure of reinforcing pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101922152B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104420487A (en) * | 2013-08-21 | 2015-03-18 | 贵阳铝镁设计研究院有限公司 | Strengthening method and structure of basic short column |
| CN103953057A (en) * | 2014-05-13 | 2014-07-30 | 浙江海洋学院 | Pile foundation for preventing soft soil foundation from disengaging |
| CN110130425A (en) * | 2019-05-17 | 2019-08-16 | 湖北中广公路勘察设计有限公司 | A kind of steel bar concrete pile plinth ruggedized construction and the building containing the ruggedized construction |
| CN110388088A (en) * | 2019-07-26 | 2019-10-29 | 江苏省建筑工程集团有限公司 | A kind of increasing of steel-structure factory building is across remodeling method |
| CN110552364A (en) * | 2019-08-19 | 2019-12-10 | 中建铁投轨道交通建设有限公司 | inverted wedge-shaped expansion construction method for building pile foundation bearing platform |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113282A (en) * | 1995-05-17 | 1995-12-13 | 广州市鲁班建筑防水补强专业公司 | Method for connecting anchor-rod type supporting table |
| CN1876970A (en) * | 2005-06-10 | 2006-12-13 | 李仁平 | Long and short piles square units combination type combined pile foundation |
| CN201190288Y (en) * | 2008-05-15 | 2009-02-04 | 浙江中富建筑集团股份有限公司 | Pile foundation of long and short combined pile of building foundation |
-
2009
- 2009-06-11 CN CN2009103031509A patent/CN101922152B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113282A (en) * | 1995-05-17 | 1995-12-13 | 广州市鲁班建筑防水补强专业公司 | Method for connecting anchor-rod type supporting table |
| CN1876970A (en) * | 2005-06-10 | 2006-12-13 | 李仁平 | Long and short piles square units combination type combined pile foundation |
| CN201190288Y (en) * | 2008-05-15 | 2009-02-04 | 浙江中富建筑集团股份有限公司 | Pile foundation of long and short combined pile of building foundation |
Non-Patent Citations (2)
| Title |
|---|
| JP平2-164932A 1990.06.25 |
| JP特开2000-129696A 2000.05.09 |
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| Publication number | Publication date |
|---|---|
| CN101922152A (en) | 2010-12-22 |
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