CN108442370A - The broken pile connector processing method of prestressed concrete pipe pile - Google Patents
The broken pile connector processing method of prestressed concrete pipe pile Download PDFInfo
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- CN108442370A CN108442370A CN201710083253.3A CN201710083253A CN108442370A CN 108442370 A CN108442370 A CN 108442370A CN 201710083253 A CN201710083253 A CN 201710083253A CN 108442370 A CN108442370 A CN 108442370A
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- pile
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- broken pile
- pipe
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/64—Repairing piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/0023—Cast, i.e. in situ or in a mold or other formwork
Abstract
A kind of broken pile connector processing method of prestressed concrete pipe pile is suitable for φ 500mm below broken pile of the fracture position within 2m below earth excavation face, it is characterised in that include the following steps：A, unwrapping wire positions, and b, smooth location, c, excavator are in place, d, excavation, and e, pile pile fill core, f, cast-in-situ steel reinforced concrete short column（6）Bundle muscle, formwork, pour concrete, g, maintenance, h, backfilling of earthwork compacting, i, casting concrete bed course（3）.The broken pile connector processing method of the prestressed concrete pipe pile of the present invention has the operating mode that pile driving construction is hammered suitable for foundation pit pile foundation engineering by factors are affected and the generate broken pile such as soil property is poor, different soil conditions can be directed to, operation is carried out using reasonable construction method, method is simple, advantage easy for construction.
Description
Technical field
The present invention relates to a kind of broken pile connector processing methods of pile pile in basic engineering construction, specifically, being a kind of pre-
The broken pile connector processing method of prestressed concrete pile pile.
Background technology
In recent years, with the expansion of the development of production and capital construction scale, foundation engineering is more and more, pile for prestressed pipe
Fast, short time limit, the geology that design Application Range is wide, bearing capacity of single pile is high, larger to supporting course fluctuations with its speed of application
Condition is adaptable, and transporting and hoisting is convenient, pile extension is quick, cost is relatively cheap, is not limited by construction machinery at pile length
The advantage of aspect, the application in pile foundation engineering are also more extensive.But it during pile for prestressed pipe pile foundation construction, is also easy
Survey the soil property for failing to verify with encountering（Boulder and barrier is more, hard soil layer）Soil layer in situation and place（Muck soil）
It is poor, cause pile crown to be battered down or because of the depression of stake machine to squeeze off pile for prestressed pipe, tube pile construction is caused to lose.Simultaneously because of design
The remedial measures such as staking and cause expense increase significantly, the duration be significantly affected, cause economic benefit of engineering to glide.
Therefore there is upper for the processing mode of the remedial measures such as broken pile design staking of known prestressed concrete pipe pile
State various inconvenient and problems.
Invention content
The purpose of the present invention is to propose a kind of φ to fracture position shallow-layer within 2m below earth excavation face
500mm broken piles below, using the broken pile connector processing method of the prestressed concrete pipe pile of Reinforced Concrete Short Column pile extension.
To achieve the above object, technical solution of the invention is：
A kind of broken pile connector processing method of prestressed concrete pipe pile, be suitable for fracture position below earth excavation face 2m with
Interior φ 500mm broken piles below, it is characterised in that include the following steps：
A, unwrapping wire positions
According to construction drawing and pile driving record, the specific location of broken pile is accurately positioned, and spreads lime line and marks；
B, smooth location
Mud, boulder barrier in broken pile peripheral extent are purged, and it is smooth to carry out construction site, avoids excavator in place
The further damage to other in broken pile or foundation pit is caused afterwards；
C, excavator is in place
Select 0.6m3Small-sized excavator excavate, excavator track route avoids stake position region, can not avoid strictly according to the facts, then as possible
Necessary protection is carried out to the stake position within the scope of excavator track route, the shoveling slope that excavator is seated in broken pile as possible influences model
Other than enclosing；
D, it excavates
From broken pile position, peripheral position slowly excavates after excavator is in place, directly must not down excavate, be avoided to disconnected at the top of broken pile
Stake and all skirt piles position damage, and floor manager is carried out with technical staff；It is excavated at broken pile to stop after lower 600mm
It excavates down, is specifically determined according to soil property situation and excavate the slope gradient, the gradient 1:0.5-1:19, operating surface >=300mm；
E, pile pile fills core, includes the following steps：
（1）Prestressed concrete pipe pile is cut to form smooth port using pipe pile cutter at broken pile；
（2）Make steel reinforcement cage：8 root long degree >=1400mm, the 1st reinforcing bars of diameter 20mm and circular steel plate welding are taken, with the 1st reinforcing bar
Make anchoring main reinforcement, the circular steel plate supporting plate of one end and the 5mm thickness of diameter ＜ prestressed concrete pipe pile diameters makees vertical welding,
Several 1st reinforcing bar encrypted areas are using spacing 100mm arrangements；Make stirrup, spacing 100mm with the 2nd reinforcing bars of diameter 8mm；
（3）Steel reinforcement cage will be made to be inserted into broken pile pipe
Steel reinforcement cage will be made with circular steel plate to make in bottom end insertion broken pile pipe, insertion depth is not less than 1400mm, close to the 1st reinforcing bar
Expose the bending to outside pipe of prestressed concrete pipe pile circumference port；It is short that the 1st reinforcing bar positioned at middle section stretches into armored concrete
In column, the diameter that reinforcing bar length is not less than the 50 × the 1st reinforcing bar is stretched into；
（4）The placing concrete in steel reinforcement cage
First remove broken pile tube top end and pile pipe inner wall laitance, with C40 slightly expanded concretes in steel reinforcement cage placing concrete, reach
It is poured in steel reinforcement cage in broken pile tube top end full；
F, the bundle muscle of cast-in-situ steel reinforced concrete short column, formwork, pour concrete, include the following steps：
（1）Below the outside of broken pile pipe joint area 100mm thickness concrete cushions are poured around pile pile（9）；
（2）In exterior circumference of broken pile pipe etc. point 4 the 3rd reinforcing bars of arrangement, one end of the 3rd reinforcing bar is made to be located at cap design of pile bottom absolute altitude
At the above 100mm, the other end is located on the outside of steel reinforcement cage at concrete cushion, and the circular stirrups of the 3rd reinforcing bar use Φ 8mmHPB300
Reinforcing bar, spacing 100mm；
（3）Casting concrete template is set in the cuboid framework that 4 the 3rd reinforcing bars and its circular stirrups are formed, forms cast-in-place steel
Reinforced concrete short column frame, cast-in-situ steel reinforced concrete short column main reinforcement use 8 HRB400 reinforcing bars, stirrup to use HPB300 steel
Muscle, spacing are 8@100 of Φ；Cast-in-situ steel reinforced concrete short column main reinforcement and its stirrup are anchored at the reinforced concrete on top by code requirement
In native cushion cap, anchor bar length is not less than the diameter of 50 × anchor bar, then uses C35 concretings, compacting, press polish
Concrete surface；
G, it conserves
The conventional moisturizing that is carried out 14 days or more to the concrete that has poured, insulated curing, must not collide during maintenance or return in advance
Earth fill；
H, backfilling of earthwork is tamped
The earthwork of backfill need to meet design and related specification requirement, and compaction in layers is smooth, backfill the compactness of the earthwork and must accord with
Close design and code requirement；
I, casting concrete bed course
100mm thickness concrete cushions are poured according to design and code requirement, the pouring reinforcement concrete cushion cap on concrete cushion,
Complete the broken pile connector processing of prestressed concrete pipe pile.
The present invention prestressed concrete pipe pile broken pile connector processing method can also using technical measures below come
It further realizes.
Method above-mentioned, wherein the broken pile peripheral extent, which is radius, is equal to >=the region of 3m.
Method above-mentioned, wherein the 1st reinforcing bar is HRB400 reinforcing bars.
Method above-mentioned, wherein a height of 2800mm of the cast-in-situ steel reinforced concrete short column, cross section is length of side 600-
The square of 700mm.
After adopting the above technical scheme, the broken pile connector processing method of the prestressed concrete pipe pile of the present invention is with following
Advantage：
1, work of the pile driving construction by factors are affected and the generate broken pile such as soil property is poor is hammered suitable for foundation pit pile foundation engineering
Condition；
2, different soil conditions can be directed to and operation is carried out using reasonable construction method, method is simple, easy for construction；
3, different soil conditions can be directed to and operation is carried out using reasonable construction method, method is simple, easy for construction.
Description of the drawings
Fig. 1 is that the broken pile connector of the embodiment of the present invention handles structural schematic diagram；
Fig. 2 is the A-A sectional views in Fig. 1；
Fig. 3 is the B-B sectional views in Fig. 1.
In figure：1 steel plate 5mm steel plates and reinforcing bar full weld, 2 prestressed concrete pipe piles, 3 concrete cushions, 4 cap design of pile
Bottom absolute altitude, 5 reinforced concrete pile caps, 6 cast-in-situ steel reinforced concrete short columns, 7 the 1st reinforcing bars, 8 the 2nd reinforcing bars, 9C15 concrete cushions,
10 the 3rd reinforcing bars.
Specific implementation mode
With reference to embodiments and its attached drawing illustrates further the present invention.
Embodiment 1
The new east plot Wang Dong housing for survivor project is located at Bengbu Yuhui District, west to Youyi Community, south to East Sea main road, north to Changxing
Road.Single building 13, wherein 12 residential buildings, 1 kindergarten；186446.66 ㎡ of overall floorage.Ground overall floorage
146654.36 ㎡, basement 39792.3 ㎡ constructions.Using 3 Driven Piles machines while prefabricated reinforced concrete pile pile of constructing：
PHC-500-AB-100 type stakes.In prefabricated tubular pile work progress, when stake machine is constructed near A axis, 26 lines, is changed because of part and fill out depth
Not enough and place mucky silt layer carries force difference, causes Driven Piles machine depression.Although taking treatment measures in time, the earthwork
A axis is found after excavation, at 26 lines（Number of constructing 104#）Prefabricated tubular pile is still broken.Fracture position is in earth excavation face
Following 2m.104# are thin-walled prefabricated tubular pile, and ultimate vertical bearing capacity standard value is 1280KN.
The broken pile connector processing method of the prestressed concrete pipe pile of the present invention is used for the broken pile treatment of the project, construction
Flow is：Unwrapping wire positioning → smooth location → excavator is in place → it excavates（With lower 600mm at digging to broken pile）→ pile pile filling core →
Short column pricks muscle, formwork, pours concrete → maintenance → and be backfilling and compacted → pour cushion cap concrete bed course → reinforced concrete pile cap and construct.
Structural schematic diagram is handled referring now to the broken pile connector that Fig. 1-Fig. 3, Fig. 1 are the embodiment of the present invention, Fig. 2 is in Fig. 1
A-A sectional views, Fig. 3 is the B-B sectional views in Fig. 1.
The broken pile connector processing method of the prestressed concrete pipe pile of the present invention, includes the following steps：
A, unwrapping wire positions
According to construction drawing and pile driving record, the specific location of broken pile is accurately positioned, is used in combination lime to spread line and marks.
B, smooth location
To broken pile periphery（Radius R=3m）The barriers such as mud, boulder are purged in range, and it is smooth to carry out construction site, keeps away
Exempt to cause further to damage other stakes in broken pile or foundation pit after excavator is in place.
C, excavator is in place
Select 0.6m3Small-sized excavator excavate, excavator track route avoids stake position region, can not avoid strictly according to the facts, then as possible
Necessary protection is carried out to the stake position within the scope of excavator track route, the shoveling slope that excavator is seated in broken pile as possible influences model
Other than enclosing.
D, it excavates
From broken pile position, peripheral position slowly excavates after excavator is in place, directly must not down excavate, be avoided to disconnected at the top of broken pile
Stake and all skirt piles position damage, and floor manager is carried out with technical staff；It is excavated at broken pile to stop after lower 600mm
It excavates down, it is 1 to excavate the slope gradient:0.5-1:19（It is specifically determined according to soil property situation）, operating surface >=300mm.
E, pile pile fills core, includes the following steps：
（1）The cutting of prestressed concrete pipe pile 2 is formed by smooth port using pipe pile cutter at broken pile.
（2）Make steel reinforcement cage：8 root long degree are taken to be equal to 1400mm, the 1st reinforcing bars of diameter 20mm and circular steel plate welding, with
1st reinforcing bar makees anchoring main reinforcement, and the circular steel plate supporting plate of one end and the 5mm thickness of 2 diameter of diameter ＜ prestressed concrete pipe piles is made
Vertical welding, several 1st reinforcing bar encrypted areas are using spacing 100mm arrangements；Make stirrup with the 2nd reinforcing bars of diameter 8mm, spacing
100mm。
（3）Steel reinforcement cage will be made to be inserted into broken pile pipe
Steel reinforcement cage will be made with circular steel plate to make in bottom end insertion broken pile pipe, insertion depth is not less than 1400mm, close to the 1st reinforcing bar
Expose 2 circumference port bending to outside pipe of prestressed concrete pipe pile；It is short that the 1st reinforcing bar positioned at middle section stretches into armored concrete
In column, the diameter that reinforcing bar length is not less than the 50 × the 1st reinforcing bar is stretched into.
（4）The placing concrete in steel reinforcement cage
First remove broken pile tube top end and pile pipe inner wall laitance, with C40 slightly expanded concretes in steel reinforcement cage placing concrete, reach
It is poured in steel reinforcement cage in broken pile tube top end full.
F, the bundle muscle of cast-in-situ steel reinforced concrete short column 6, formwork, pour concrete, include the following steps：
（1）Below the outside of broken pile pipe joint area 100mm thickness concrete cushion 9 is poured around pile pile.
（2）In exterior circumference of broken pile pipe etc. point 4 the 3rd reinforcing bars 10 of arrangement, one end of the 3rd reinforcing bar is made to be located at cap design of pile
At 4 or more 100mm of bottom absolute altitude, the other end is located on the outside of steel reinforcement cage at concrete cushion 9, and the circular stirrups of the 3rd reinforcing bar use Φ
8mmHPB300 reinforcing bars, spacing 100mm.
（3）Casting concrete template is set in the cuboid framework that 4 the 3rd reinforcing bars 10 and its circular stirrups are formed, is formed
6 frame of cast-in-situ steel reinforced concrete short column, cast-in-situ steel reinforced concrete short column main reinforcement use 8 HRB400 reinforcing bars, stirrup to use
HPB300 reinforcing bars, spacing are 8@100 of Φ；Cast-in-situ steel reinforced concrete short column main reinforcement and its stirrup are anchored at top by code requirement
In reinforced concrete pile cap, anchor bar length be not less than 50 × anchor bar diameter, then use C35 concretings,
Compacting, press polish concrete surface.
G, it conserves
The conventional moisturizing that the concrete that has poured is carried out 14 days or more（Temperature）Maintenance, must not collide during maintenance or return in advance
It fills out.
H, it is backfilling and compacted
The earthwork of backfill need to meet design and related specification requirement, and compaction in layers is smooth, backfill the compactness of the earthwork and must accord with
Close design and code requirement.
I, cushion cap concrete bed course is poured
Pile framing concrete bed course is poured according to design and code requirement.
Engineering can be checked after the broken pile connector processing method construction of the prestressed concrete pipe pile of the present invention.
Specific practice is as follows：
According to frame column compression calculation formula：N≤0.9×φ×（Fc × A+fy ' × As '）,
In formula：N=single pile design bearing capacity, it is 1280KN to draft disconnected vertical bearing capacity limit；
A=piling sectional area, unit mm2；
Fc=14.3N/mm2, it is piling concrete axial compressive strength design value, using C30 concrete；
fy’=300N/ mm2, it is piling longitudinal reinforcement compression strength design value, using three-level reinforcing bar；
The area of section of As '=piling whole longitudinal reinforcement, unit mm2；
The coefficient of stability of φ=piling can be chosen according to the l0/b in the coefficient of stability table of armored concrete axis compression member.This
Locate the section that short column is 600mm × 600mm, column length 2m, φ=1.0 of tabling look-up to obtain.As’=2513N/mm2；
1280000≤0.9×1×（14.3 × 360000+300 × As '）,
It calculates：1280000N<5311710N.
Therefore the concrete compressive strength of reinforced column 600mm × 600mm has met requirement for bearing capacity.
Reinforcing bar uses the arrangement of reinforcement of detailing requiments, is matched according to Reinforcement minimum in Code for design of concrete structures
Muscle rate table checks in, this short column minimum steel ratio is 0.6%.
Using 8 III grade of 20 reinforcing bars of φ, 0.006 × 600 × 600=2160 mm2 of the mm2 of As '=2513 ＞ meet the requirements.
There is the present invention substantive distinguishing features and significant technological progress, the broken pile of prestressed concrete pipe pile of the invention to connect
Head processing method, during carrying out the processing construction of Reinforced Concrete Short Column pile extension, by project supervision and owner to positioning, opening
Dig, fill core, prick muscle and pour the critical processes such as concrete have carried out demonstration, observation is checked and accepted etc..Pass through the inspection in pile extension processing procedure
And display is checked and accepted in observation, which meets design and code requirement, and work progress meets site construction management and mark
It requires to chemical industry, respectively the approval for the side of being taken part in building, favorable comment.
Above example is used for illustrative purposes only rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent
Technical solution should also belong to scope of the invention, should be limited by each claim.
Claims (4)
1. a kind of broken pile connector processing method of prestressed concrete pipe pile is suitable for fracture position 2m below earth excavation face
Within φ 500mm broken piles below, it is characterised in that include the following steps：
A, unwrapping wire positions
According to construction drawing and pile driving record, the specific location of broken pile is accurately positioned, and spreads lime line and marks；
B, smooth location
Mud, boulder barrier in broken pile peripheral extent are purged, and it is smooth to carry out construction site, avoids excavator in place
The further damage to other in broken pile or foundation pit is caused afterwards；
C, excavator is in place
Select 0.6m3Small-sized excavator excavate, excavator track route is avoided stake position region, can not be avoided strictly according to the facts as possible, then right
Stake position within the scope of excavator track route carries out necessary protection, and excavator is seated in the shoveling slope coverage of broken pile as possible
In addition；
D, it excavates
From broken pile position, peripheral position slowly excavates after excavator is in place, directly must not down excavate, be avoided to disconnected at the top of broken pile
Stake and all skirt piles position damage, and floor manager is carried out with technical staff；It is excavated at broken pile to stop after lower 600mm
It excavates down, is specifically determined according to soil property situation and excavate the slope gradient, the gradient 1:0.5-1:19, operating surface >=300mm；
E, pile pile fills core, includes the following steps：
（1）Use pipe pile cutter by prestressed concrete pipe pile at broken pile（2）Cutting forms smooth port；
（2）Make steel reinforcement cage：8 root long degree >=1400mm, the 1st reinforcing bars of diameter 20mm and circular steel plate welding are taken, with the 1st reinforcing bar
Make anchoring main reinforcement, one end and diameter ＜ prestressed concrete pipe piles（2）The circular steel plate supporting plate of the 5mm thickness of diameter makees vertical welding
It connects, several 1st reinforcing bar encrypted areas are using spacing 100mm arrangements；Make stirrup, spacing 100mm with the 2nd reinforcing bars of diameter 8mm；
（3）Steel reinforcement cage will be made to be inserted into broken pile pipe
Steel reinforcement cage will be made with circular steel plate to make in bottom end insertion broken pile pipe, insertion depth is not less than 1400mm, close to the 1st reinforcing bar
Expose prestressed concrete pipe pile（2）The bending to outside pipe of circumference port；The 1st reinforcing bar positioned at middle section stretches into armored concrete
In short column, the diameter that reinforcing bar length is not less than the 50 × the 1st reinforcing bar is stretched into；
（4）The placing concrete in steel reinforcement cage
First remove broken pile tube top end and pile pipe inner wall laitance, with C40 slightly expanded concretes in steel reinforcement cage placing concrete, reach
It is poured in steel reinforcement cage in broken pile tube top end full；
F, cast-in-situ steel reinforced concrete short column（6）Bundle muscle, formwork, pour concrete, include the following steps：
（1）Below the outside of broken pile pipe joint area 100mm thickness concrete cushions are poured around pile pile（9）；
（2）In exterior circumference of broken pile pipe etc. point 4 the 3rd reinforcing bars of arrangement（10）, one end of the 3rd reinforcing bar is made to be located at cap design of pile bottom
Absolute altitude（4）At the above 100mm, the other end is located at concrete cushion on the outside of steel reinforcement cage（9）The circular stirrups at place, the 3rd reinforcing bar use
Φ 8mmHPB300 reinforcing bars, spacing 100mm；
（3）In 4 the 3rd reinforcing bars（10）And its casting concrete template is arranged in the cuboid framework that circular stirrups are formed, and is formed existing
Pour Reinforced Concrete Short Column（6）Frame, cast-in-situ steel reinforced concrete short column main reinforcement use 8 HRB400 reinforcing bars, stirrup to use
HPB300 reinforcing bars, spacing are 8@100 of Φ；Cast-in-situ steel reinforced concrete short column main reinforcement and its stirrup are anchored at top by code requirement
In reinforced concrete pile cap, anchor bar length be not less than 50 × anchor bar diameter, then use C35 concretings,
Compacting, press polish concrete surface；
G, it conserves
The conventional moisturizing that is carried out 14 days or more to the concrete that has poured, insulated curing, must not collide during maintenance or return in advance
Earth fill；
H, backfilling of earthwork is tamped
The earthwork of backfill need to meet design and related specification requirement, and compaction in layers is smooth, backfill the compactness of the earthwork and must accord with
Close design and code requirement；
I, casting concrete bed course（3）
100mm thickness concrete cushions are poured according to design and code requirement（3）, pouring reinforcement concrete is held on concrete cushion
Platform（5）, complete the broken pile connector processing of prestressed concrete pipe pile.
2. the broken pile connector processing method of prestressed concrete pipe pile as described in claim 1, which is characterized in that the broken pile
Peripheral extent is that radius is equal to the >=region of 3m.
3. the broken pile connector processing method of prestressed concrete pipe pile as described in claim 1, which is characterized in that the described 1st
Reinforcing bar is HRB400 reinforcing bars.
4. the broken pile connector processing method of prestressed concrete pipe pile as described in claim 1, which is characterized in that described cast-in-place
Reinforced Concrete Short Column（6）A height of 2800mm, cross section be length of side 600-700mm square.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710083253.3A CN108442370A (en) | 2017-02-16 | 2017-02-16 | The broken pile connector processing method of prestressed concrete pipe pile |
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| CN201710083253.3A CN108442370A (en) | 2017-02-16 | 2017-02-16 | The broken pile connector processing method of prestressed concrete pipe pile |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518681A (en) * | 2018-11-22 | 2019-03-26 | 五冶集团上海有限公司 | Precast concrete square pile connector processing method |
| CN110016928A (en) * | 2019-04-23 | 2019-07-16 | 上海太江建设工程有限公司 | Secondary pile connection construction method and its floor structure |
| CN111877329A (en) * | 2020-07-03 | 2020-11-03 | 广州市第一市政工程有限公司 | Pile-in-pile broken pile and pile-splicing construction method |
| CN114293600A (en) * | 2021-12-22 | 2022-04-08 | 珠海华发人居生活研究院有限公司 | Method for processing broken pile defect of precast pile in weak soil area |
| CN114657977A (en) * | 2022-02-24 | 2022-06-24 | 中建一局集团第二建筑有限公司 | Prestressed concrete tubular pile tip crack reinforcing and strengthening device |
| CN114808928A (en) * | 2022-06-10 | 2022-07-29 | 中国建筑第七工程局有限公司 | Connecting joint of assembled pile plate structure and construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351218A (en) * | 2016-08-31 | 2017-01-25 | 南京工业大学 | Broken pile remedying method |
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2017
- 2017-02-16 CN CN201710083253.3A patent/CN108442370A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351218A (en) * | 2016-08-31 | 2017-01-25 | 南京工业大学 | Broken pile remedying method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518681A (en) * | 2018-11-22 | 2019-03-26 | 五冶集团上海有限公司 | Precast concrete square pile connector processing method |
| CN110016928A (en) * | 2019-04-23 | 2019-07-16 | 上海太江建设工程有限公司 | Secondary pile connection construction method and its floor structure |
| CN111877329A (en) * | 2020-07-03 | 2020-11-03 | 广州市第一市政工程有限公司 | Pile-in-pile broken pile and pile-splicing construction method |
| CN114293600A (en) * | 2021-12-22 | 2022-04-08 | 珠海华发人居生活研究院有限公司 | Method for processing broken pile defect of precast pile in weak soil area |
| CN114657977A (en) * | 2022-02-24 | 2022-06-24 | 中建一局集团第二建筑有限公司 | Prestressed concrete tubular pile tip crack reinforcing and strengthening device |
| CN114657977B (en) * | 2022-02-24 | 2023-10-20 | 中建一局集团第二建筑有限公司 | Prestressed concrete pipe pile end crack reinforcing device |
| CN114808928A (en) * | 2022-06-10 | 2022-07-29 | 中国建筑第七工程局有限公司 | Connecting joint of assembled pile plate structure and construction method |
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