CN106351270A - Self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation - Google Patents
Self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation Download PDFInfo
- Publication number
- CN106351270A CN106351270A CN201611007782.7A CN201611007782A CN106351270A CN 106351270 A CN106351270 A CN 106351270A CN 201611007782 A CN201611007782 A CN 201611007782A CN 106351270 A CN106351270 A CN 106351270A
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- Prior art keywords
- pile
- pile foundation
- foundation
- self
- steel pipe
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D35/00—Straightening, lifting, or lowering of foundation structures or of constructions erected on foundations
- E02D35/005—Lowering or lifting of foundation structures
Abstract
The invention discloses a self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation. The self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation comprises a micro steel pipe pile, a pile foundation expansion platform, a cushion block, and a screw jack. The micro steel pipe pile is mounted under the ground around the original foundation platform; the pile foundation expansion platform and the original foundation platform form a monolithic structure; the cushion block is mounted to the top of the micro steel pipe pile; the screw jack is placed vertically in between the cushion block and the pile foundation expansion platform. A self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation can solve the problem of a long construction period and high cost of current pile foundation deviation correction measures, according to which, independent pile foundation platforms are connected into a monolithic structure like a raft board, a reaction frame and a jack are mounted to the monolithic pile foundation platform, and the jack can force a new pile under the ground to replace the original pile of which the bearing capacity is insufficient or lost, and prevent the damages caused by differential settlement of pile foundation structures.
Description
Technical field
The present invention relates to a kind of correcting and then reinforcing steel pile structure, more particularly, to a kind of self-locking underpinned pile correcting offset of base reinforcing steel
Pilework, belongs to building field.
Background technology
Greatly develop infrastructural project with currently domestic, continue to bring out out many new building forms, due to building
Build various change of thing upper body structure and the various and complexity of base form, existing building Inclination Accident in the last few years
Occur repeatedly it is however generally that, if the slope of existing building is close to 4 ‰, the people in building have building dangerous and
The uncomfortable sensation of the suitability, when building inclination rate is close to 7 ‰ about, existing building may produce major structural and damage
Bad.Currently for the satisfactory after correcting of pile foundation building, usual method is that independent pile foundation support table is linked to be entirety, forms entirety
Pile foundation support table is similar to raft foundation, installs reaction frame and jack on forming overall pile foundation support table, will be new by jack
Stake press-in stratum to replace the Lack of support of original or the problem of inefficacy；Said method work progress is complicated, long in time limit
And high cost.How to solve the problems, such as that the harm that pile foundation differential settlement of buildings is brought is the difficulty needing in foundation stabilization to solve
Topic.
Content of the invention
It is an object of the invention to provide a kind of self-locking underpinned pile correcting offset of base reinforces steel pile structure, using a kind of self-locking
Tight underpinned pile correcting offset of base reinforces the satisfactory after correcting currently for pile foundation building for the steel pile structure solution, and usual method is by independence
Pile foundation support table be linked to be entirety, form overall pile foundation support table and be similar to raft foundation, install on forming overall pile foundation support table
New stake is pressed into stratum by jack and replaces asking of the Lack of support of original or inefficacy by reaction frame and jack
Topic, thus long in time limit and high cost, solves the problems, such as the harm that pile foundation differential settlement of buildings is brought.
The technical scheme of the offer of the present invention is: a kind of self-locking underpinned pile correcting offset of base reinforces steel pile structure, including micro-
Shaped steel pile tube, pile foundation expand cushion cap, cushion block and screw jack, and described miniature steel pipe pile is arranged on around original basis cushion cap
In stratum；It is overall structure that described pile foundation expands cushion cap with original basis cushion cap；Described cushion block is arranged on the top of miniature steel pipe pile
Portion；Screw jack is vertically placed on cushion block and pile foundation expands between cushion cap.
Described miniature steel pipe pile is circular cross-section, and miniature steel pipe pile bottom is sharp, and sharp position is ring-like knife-like.
The mounting means that described pile foundation expands cushion cap is that reinforcing bar is implanted the mode after-pouring of original basis cushion cap in basis
Around cushion cap；Described pile foundation expands cushion cap plan-position with miniature steel pipe pile on the same axis.
Described cushion block is steel plate.
Described screw jack has auto-lock function.
Described plate size is 350mm × 350mm × 10mm.
Carry out the piling work of miniature steel pipe pile first, squeeze on design supporting course；Carry out pile foundation afterwards and expand cushion cap
Make, cushion block is placed after completing on the miniature steel pipe pile expose earth's surface and lays screw jack；Screw jack
It is manually operated, with the jacking realization purpose of raising former pile foundation support table of screw jack, in screw jack work
When whole device force path be: dead load → former pile foundation support table → pile foundation expand cushion cap → screw jack → cushion block →
Miniature steel pipe pile → design supporting course, because miniature steel pipe pile bottom has reached design supporting course, therefore it is in steady statue.By
Carry auto-lock function in screw jack, lifting operation can be stopped at any time during screw jack jacking it is not necessary to interim
Envelope stake, it is possible to achieve the total tune lifting of structure.
A kind of self-locking underpinned pile correcting offset of base of the present invention is reinforced steel pile structure and is mainly included miniature steel pipe pile, and basis is expanded
Large platform, money advanced for somebody to be paid back later and four major parts of screw jack, miniature steel pipe pile squeezes into original basis cushion cap week by pile driving equipment stake
In the stratum enclosed, stake is long, and depending on bearing stratum depth, its section is circular cross-section, and stake bottom is sharp, presents cutting ring shape,
Merogenesis squeezes into stratum.Pile foundation expand cushion cap by by reinforcing bar implant original basis cushion cap by way of pour around foundation platform with former
Foundation platform forms entirety, and plan-position is with miniature steel pipe pile on the same axis；Cushion block be many chip sizes 350mm ×
The steel plate of 350mm × 10mm, the top being positioned over miniature steel pipe pile is used for laying screw jack.
The miniature steel pipe pile of the present invention is circular cross-section, and miniature steel pipe pile bottom is sharp, and sharp position is ring-like knife-like, adopts
Uniform force can be ensured with this structure circle, sharp steel-pipe pile bottom is easy to for miniature steel pipe pile to squeeze into pile foundation expansion cushion cap,
Decrease difficulty of construction, improve work efficiency.
The mounting means that the pile foundation of the present invention expands cushion cap is that reinforcing bar is implanted the mode after-pouring of original basis cushion cap in base
Around plinth cushion cap；Described pile foundation expands cushion cap plan-position with miniature steel pipe pile on the same axis so that structure is in entirety
More flexible during lifting, it is easy to the total tune lifting of all pile foundation support tables, compensate for pile foundation support table and be not linked to be entirety
The problem of difficult to reach entirety lifting, both having saved the duration also saves operating expenses.
The cushion block of the present invention is steel plate, increased intensity, improves stability.
The screw jack of the present invention has auto-lock function, and the self-locking function of screw jack can during allowing jacking
To stop lifting operation at any time.
The plate size of the present invention is 350mm × 350mm × 10mm, can need to adjust different steel plate layer according to thickness
Number.
For pile foundation rectifying of leaned building, because design supporting course is deeper, can only be underpined by the way of again driving piles
The superstructure load that former stake is born.The present invention is using the mode of " first drive piles, then underpin ", quiet compared to traditional reaction frame
Defeat the mode of " the underpining in piling " of stake, structure is safer during piling, also eliminates traditional method in pile extension
When need the interim operation sealing stake.Piling carries out jacking, screw jack using screw jack to pile foundation cushion cap after finishing
Self-locking function allow jacking during can stop lifting operation at any time so that structure is cleverer during overall lifting
Live, be easy to the total tune lifting of all pile foundation support tables, compensate for pile foundation support table and be not linked to be overall difficult to reach entirety lifting
Problem, both having saved the duration also saves operating expenses.Screw jack is welded after finishing by jacking, finally expands in pile foundation
The following formwork supporting plate of cushion cap, will expose the miniature steel pipe pile of earth's surface, cushion block, and screw jack is by the way of cast-in-place concrete and stake
Base expands cushion cap and is linked to be entirety, completes permanent envelope stake.Due to being driven piles using pile driving equipment, thus eliminate static pressed pile to need to arrange
The technique of reaction frame.
In sum, reinforce steel pile structure using a kind of self-locking underpinned pile correcting offset of base of the present invention can solve at present
For the satisfactory after correcting of pile foundation building, usual method is that independent pile foundation support table is linked to be entirety, forms overall pile foundation and holds
Platform is similar to raft foundation, installs reaction frame and jack on forming overall pile foundation support table, by jack by new stake pressure
Enter stratum to replace the Lack of support of original or the problem of inefficacy, thus long in time limit and high cost, solve pile foundation building
The harm problem that differential settlement is brought.
Brief description
Fig. 1 is present configuration schematic plan view；
Fig. 2 is present configuration constructed profile；
In figure labelling: 1, miniature steel pipe pile, 2, pile foundation expand cushion cap, 3, cushion block, 4, screw jack.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Referring to shown in Fig. 1～2, a kind of self-locking underpinned pile correcting offset of base reinforces steel pile structure, including miniature steel pipe pile 1,
Pile foundation expands cushion cap 2, cushion block 3 and screw jack 4, and miniature steel pipe pile 1 is arranged in the stratum around original basis cushion cap；Pile foundation
Expanding cushion cap 2 with original basis cushion cap is overall structure；Cushion block 3 is arranged on the top of miniature steel pipe pile 1；Screw jack 4 is vertical
It is placed on cushion block 3 and pile foundation expands between cushion cap 2.
First former pile foundation support table is dug out it is ensured that digging the work surface of 0.8 × 0.8m under pile foundation support table surrounding, cutting depth is
The buried depth of pile foundation support table.It is necessary to ensure that work surface has clear height not less than 2.2m it is impossible to ensure to consider during work surface clear height
Stall floor is punched.
Miniature steel pipe pile 1 is that the steel of diameter 200mm is cut pipe 1.5m mono- section, first segment is squeezed into the stake end processing in soil
Become sharp annular edge of a knife shape, squeeze into ground section by section, internode using being welded to connect, stake long depending on bearing stratum depth, piling sets
Standby limit for height 1.95m.
Piling starts after finishing to build pile foundation expansion cushion cap 2 above stake axis, passes through bar planting on former pile foundation support table
Mode pours pile foundation and expands cushion cap 2, pile foundation is expanded cushion cap 2 and is linked to be entirety with former pile foundation support table.
After the intensity that pile foundation expands cushion cap 2 meets requirement, start to lay screw jack 4, miniature steel pipe pile 1 is put
Put steel plate cushion block 3, cushion block 3 is the steel plate of 350mm × 350mm × 10mm, places a number of cushion block according to practical situation, and
On cushion block 3 and expand pile foundation support table 2 time placement screw jack 4, the maximum output of screw jack 4 try hard to keep demonstrate,prove 75 tons with
On.
Start lifting operation after placing screw jack 4, permissible according to building actual lifting situation during jacking
Freely adjust the top lifting height of the screw jack 4 of diverse location, the auto-lock function due to screw jack 4 can be interim at any time
Stop lifting operation without the stake of interim envelope.After the completion for the treatment of structure integral jacking operation, can be by the rotation wire bond of screw jack
Extremely it is ensured that screw jack will not receive cylinder.
Last expand the following formwork supporting plate of cushion cap 2 in pile foundation, very heavy by exposing the miniature steel pipe pile 1 of earth's surface, cushion block 3, spiral
Top 4 expands cushion cap 2 with pile foundation by the way of cast-in-place concrete and is linked to be entirety, thus completing final envelope stake work.
For pile foundation rectifying of leaned building, because design supporting course is deeper, can only be underpined by the way of again driving piles
The superstructure load that former stake is born.The present invention is using the mode of " first drive piles, then underpin ", quiet compared to traditional reaction frame
Defeat the mode of " the underpining in piling " of stake, structure is safer during piling, also eliminates traditional method in pile extension
When need the interim operation sealing stake.Piling carries out jacking, screw jack using screw jack to pile foundation cushion cap after finishing
Self-locking function allow jacking during can stop lifting operation at any time so that structure is cleverer during overall lifting
Live, be easy to the total tune lifting of all pile foundation support tables, compensate for pile foundation support table and be not linked to be overall difficult to reach entirety lifting
Problem, both having saved the duration also saves operating expenses.Screw jack is welded after finishing by jacking, finally expands in pile foundation
The following formwork supporting plate of cushion cap, will expose the miniature steel pipe pile of earth's surface, cushion block, and screw jack is by the way of cast-in-place concrete and stake
Base expands cushion cap and is linked to be entirety, completes permanent envelope stake.Due to being driven piles using pile driving equipment, thus eliminate static pressed pile to need to arrange
The technique of reaction frame.
The above, be only presently preferred embodiments of the present invention, not inventing type is made with any pro forma restriction, appoints
What any is simply repaiied according to what the technical spirit of the present invention made to above example without departing from technical solution of the present invention content
Change, equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (6)
1. a kind of self-locking underpinned pile correcting offset of base reinforces steel pile structure, include miniature steel pipe pile (1), pile foundation expansion cushion cap (2),
Cushion block (3) and screw jack (4) it is characterised in that: described miniature steel pipe pile (1) is arranged on the ground around original basis cushion cap
In layer；It is overall structure that described pile foundation expands cushion cap (2) with original basis cushion cap；Described cushion block (3) is arranged on miniature steel pipe pile
(1) top；Screw jack (4) is vertically placed on cushion block (3) and pile foundation expands between cushion cap (2).
2. a kind of self-locking underpinned pile correcting offset of base according to claim 1 reinforce steel pile structure it is characterised in that: described
Miniature steel pipe pile (1) be circular cross-section, miniature steel pipe pile (1) bottom is sharp, and sharp position is ring-like knife-like.
3. a kind of self-locking underpinned pile correcting offset of base according to claim 1 reinforce steel pile structure it is characterised in that: described
Pile foundation expand cushion cap (2) mounting means be by reinforcing bar implant original basis cushion cap mode after-pouring around foundation platform；
Described pile foundation expands cushion cap (2) plan-position with miniature steel pipe pile (1) on the same axis.
4. a kind of self-locking underpinned pile correcting offset of base according to claim 1 reinforce steel pile structure it is characterised in that: described
Cushion block (3) be steel plate.
5. a kind of self-locking underpinned pile correcting offset of base according to claim 1 reinforce steel pile structure it is characterised in that: described
Screw jack (4) there is auto-lock function.
6. a kind of self-locking underpinned pile correcting offset of base according to claim 4 reinforce steel pile structure it is characterised in that: described
Plate size be 350mm × 350mm × 10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007782.7A CN106351270A (en) | 2016-11-16 | 2016-11-16 | Self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611007782.7A CN106351270A (en) | 2016-11-16 | 2016-11-16 | Self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106351270A true CN106351270A (en) | 2017-01-25 |
Family
ID=57861950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611007782.7A Pending CN106351270A (en) | 2016-11-16 | 2016-11-16 | Self-locking steel pile structure for deviation correction and reinforcement of underpinned pile foundation |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703092A (en) * | 2017-03-13 | 2017-05-24 | 兰州铁道设计院有限公司 | Connecting structure and method for foundation piles and bearing platform in pile foundation underpinning |
| CN107044142A (en) * | 2017-04-20 | 2017-08-15 | 南京工业大学 | Adjustable reinforcement and rectification method and structure for reducing house differential settlement |
| CN107190768A (en) * | 2017-06-06 | 2017-09-22 | 西安科技大学 | A kind of static pressure pile structure and its construction method for building strengthening of foundation |
| CN107237345A (en) * | 2017-06-15 | 2017-10-10 | 广州市胜特建筑科技开发有限公司 | A kind of method and system of quick control building settlement |
| CN108978742A (en) * | 2018-09-30 | 2018-12-11 | 兰州理工大学 | One kind cutting stake forced-landing tilt correcting structure, method |
| CN109356210A (en) * | 2018-11-21 | 2019-02-19 | 兰州理工大学 | A kind of pile foundation building inclination rectification cuts stake and underpins position limiting structure and its construction method |
| CN110029695A (en) * | 2019-04-22 | 2019-07-19 | 中国矿业大学 | A kind of method for correcting error of combined high-voltage transmission pole differential settlement |
| CN110273441A (en) * | 2019-06-17 | 2019-09-24 | 北京筑福建筑科学研究院有限责任公司 | A kind of old factory building foundation uses the structural strengthening and construction method of newly-increased steel-pipe pile and newly-increased concrete bearing platform |
| CN112554250A (en) * | 2020-12-28 | 2021-03-26 | 兰州理工大学 | Pile foundation building micro composite steel pipe pile underpinning inclination correcting structure and construction method thereof |
| CN113323011A (en) * | 2021-06-30 | 2021-08-31 | 武汉武建机械施工有限公司 | Novel underpinning construction method for steel pipe under existing building foundation |
| CN116290899A (en) * | 2023-04-12 | 2023-06-23 | 中交第四航务工程局有限公司 | Foundation system for pile replacement and construction method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703092A (en) * | 2017-03-13 | 2017-05-24 | 兰州铁道设计院有限公司 | Connecting structure and method for foundation piles and bearing platform in pile foundation underpinning |
| CN107044142A (en) * | 2017-04-20 | 2017-08-15 | 南京工业大学 | Adjustable reinforcement and rectification method and structure for reducing house differential settlement |
| CN107190768A (en) * | 2017-06-06 | 2017-09-22 | 西安科技大学 | A kind of static pressure pile structure and its construction method for building strengthening of foundation |
| CN107190768B (en) * | 2017-06-06 | 2022-09-13 | 西安科技大学 | Construction method of static pressure pile structure for building foundation reinforcement |
| CN107237345A (en) * | 2017-06-15 | 2017-10-10 | 广州市胜特建筑科技开发有限公司 | A kind of method and system of quick control building settlement |
| CN108978742A (en) * | 2018-09-30 | 2018-12-11 | 兰州理工大学 | One kind cutting stake forced-landing tilt correcting structure, method |
| CN109356210A (en) * | 2018-11-21 | 2019-02-19 | 兰州理工大学 | A kind of pile foundation building inclination rectification cuts stake and underpins position limiting structure and its construction method |
| CN110029695A (en) * | 2019-04-22 | 2019-07-19 | 中国矿业大学 | A kind of method for correcting error of combined high-voltage transmission pole differential settlement |
| CN110273441A (en) * | 2019-06-17 | 2019-09-24 | 北京筑福建筑科学研究院有限责任公司 | A kind of old factory building foundation uses the structural strengthening and construction method of newly-increased steel-pipe pile and newly-increased concrete bearing platform |
| CN112554250A (en) * | 2020-12-28 | 2021-03-26 | 兰州理工大学 | Pile foundation building micro composite steel pipe pile underpinning inclination correcting structure and construction method thereof |
| CN113323011A (en) * | 2021-06-30 | 2021-08-31 | 武汉武建机械施工有限公司 | Novel underpinning construction method for steel pipe under existing building foundation |
| CN116290899A (en) * | 2023-04-12 | 2023-06-23 | 中交第四航务工程局有限公司 | Foundation system for pile replacement and construction method |
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Application publication date: 20170125 |
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