CN110185055A - Integrated hot pin piling strtucture and its construction method - Google Patents
Integrated hot pin piling strtucture and its construction method Download PDFInfo
- Publication number
- CN110185055A CN110185055A CN201910465545.2A CN201910465545A CN110185055A CN 110185055 A CN110185055 A CN 110185055A CN 201910465545 A CN201910465545 A CN 201910465545A CN 110185055 A CN110185055 A CN 110185055A
- Authority
- CN
- China
- Prior art keywords
- hot pin
- pile foundation
- cushion cap
- bridge pier
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Foundations (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention discloses a kind of integrated hot pin piling strtucture and its construction method, the integration hot pin piling strtucture includes hot pin and the pile foundation set gradually from bottom to top, cushion cap and bridge pier, the hot pin passes through the cushion cap and is axially embedded in the pile foundation, the evaporator section of the hot pin extends to the bottom of the pile foundation, and the condensation segment of the hot pin exposes to the top of the plummer.The construction method includes: the determination of 1, parameter；2, pile foundation boring；3, pile foundation steel bar cage and fixed hot pin are rolled, pile foundation concrete is poured；4, cushion cap and bridge pier concrete are poured；5, it conserves.The present invention can effectively shorten concrete pipe base time returning to freeze, reduce the construction time of Permafrost Area science of bridge building, increase the ultimate bearing capacity of pile foundation.
Description
Technical field
The present invention relates to traffic base construction project technical fields more particularly to a kind of for Frozen Ground Area multi-column pier foundation
Integrated hot pin piling strtucture and construction method.
Background technique
It distributed along Qinghai-Tibet high speed (especially last construction section-"GermuLasa" section of capital hiding highway) super
The Permafrost Area of 550km is crossed, frozen soil refers to zero degrees celsius hereinafter, and various rocks and soil containing ice.Frozen soil has stream
Denaturation, extremely sensitive to temperature, long-term strength is far below instantaneous strength feature.Frozen soil freezes just as ice during the cold season
Knot build the frozen soil top that the engineering construction of permafrost region build " will be got fat " in as the reduction volume of temperature expands
It rises and squeezes；To summer, the frozen soil volume-diminished of thawing, engineering construction can be loosened again, be tilted.In Permafrost Area pile foundation
In casting process, hydration heat of concrete will cause ever-frozen ground thawing, and stake week frozen soil time returning to freeze is up to 1 year or more, serious shadow
The construction speed of bearing capacity of pile foundation and bridge superstructure, and the appearance of frozen soil freezed and melted alternately and repeatedly have been rung, it can be right
The safety of railway, highway or bridge pile foundation threatens.
Hot pin is processing frozen soil disease, the effective measures of protection of permafrost.The structure of a hot pin substantially closed hollow length
Stick is provided with the working medium such as some liquefied ammonia, liquid nitrogen, and the top of hot pin is equipped with radiator shutter, and referred to as condensation segment, condensation segment is placed in atmosphere
In；The lower part of hot pin is embedded in ground ever-frozen ground, referred to as evaporator section.There are when the temperature difference, the liquid nitrogen absorption of evaporator section is flashed to
Gas rises to condensation segment in draught head effect lower edge pipe internal pore, liquid is condensed into, and under the effect of gravity, along tube wall stream
Under.So on circulate, by the heat transmission in stratum into atmosphere, so that the ground temperature of ever-frozen ground is reduced, to prevent for many years
Frozen soil melts, to achieve the purpose that stable road bed, pile foundation.
But existing permafrost region science of bridge building is in the design process, the distinctive attribute of frozen soil is based on, in order to avoid to frozen soil
Agitation, single-pile foundation is often set, over time, many future troubles occurs, because single-pile foundation is with frozen soil
The appearance freezed and melted alternately and repeatedly, it is easy to occur each side group plinth because stress difference due to be lifted, or generate crack,
Phenomena such as inclination, serious person is even collapsed, just needs to the single pile to go wrong in the later period using slotting in order to solve these problems
If the mode of hot pin is repaired and renovated, this undoubtedly may require that repetition is constructed, and repeatedly disturbs frozen soil and ideal suction is not achieved
Heat and heat dissipation problem.
Hot pin directly is set to reduce the way of maintenance cost, a side in single pile side in the construction process although having
Face single-pile foundation load capacity is low, once some single pile, which goes wrong, will involve entire project progress；On the other hand, hot pin with
Unstable, high failure rate is connected between single pile, there has been no better ways to solve the generated above problem in permafrost region at present.
Summary of the invention
It is an object of the present invention to overcoming defect described in the prior art, to provide a kind of integrated hot pin stake
Based structures, the present invention can effectively shorten concrete pipe base time returning to freeze, reduce the construction of Permafrost Area science of bridge building
Phase increases the ultimate bearing capacity of pile foundation.
To achieve the goals above, the invention provides the following technical scheme:
A kind of integration hot pin piling strtucture, pile foundation, cushion cap and the bridge pier set gradually including hot pin and from bottom to top,
The hot pin passes through the cushion cap and is axially embedded in the pile foundation, and the evaporator section of the hot pin extends to the bottom of the pile foundation
Portion, the condensation segment of the hot pin expose to the top of the plummer.
Hot pin pile foundation of the invention is integrated first, i.e., the multi-column pier foundation being made of pile foundation, cushion cap and bridge pier, should
Basis is after by vertical load, the interaction of cushion cap, pile foundation, frozen soil, sends out the characters such as its pile side resistance, end resistance, sedimentation
Changing and it is different from single pile, bearing capacity is often different from the sum of each bearing capacity of single pile, and stability is preferable；Secondly it is embedded in pile foundation
The evaporator section of hot pin, the evaporator section extend to the bottom of the pile foundation, in this way, the thermal diode effect that can use hot pin will be certainly
" cold energy " on right boundary imports in pile foundation, and realizes the heat exchange at each position in pile foundation, efficiently solves multi-column pier foundation small
A large amount of concrete is used in range, a large amount of heat of hydration certainly will be generated, to increase the time returning to freeze or even shadow of stake week frozen soil
Ring the stable problem of frozen soil.
Therefore, not only heat exchanger effectiveness is high by the present invention, the heat absorption and good heat dissipation effect of each pile foundation in multi-column pier foundation, and contracts
Short pile foundation concrete time returning to freeze reduces the bridge superstructure construction period.
Preferably: the pile foundation, cushion cap and bridge pier, which are integrated, to be perfused, and the evaporator section of the hot pin defaults in the stake
On the steel reinforcement cage of base.
The preferred bored concrete pile of pile foundation in the present invention will not generate that vibration, without squeezing soil, noise is small in construction, pour filling
Before infusing stake, first the evaporator section of hot pin is fixed on the steel reinforcement cage of bored concrete pile pile foundation, in the band pile foundation to greatly improve hot pin
Heat transfer efficiency, while also can more consolidate by hot pin, pile foundation, cushion cap and bridge pier one form, improve of the invention
Bonding strength and efficiency of pile groups.
Preferably: the hot pin is L-type hot pin, and the diameter of the hot pin is not less than 80mm.
The preferred L-type hot pin of the present invention, the evaporator section of such hot pin are avoided bridge pier, are spread around, and heat dissipation effect is more preferable,
And when the diameter of hot pin is not less than 80mm, it is easier to construct, while the thermal diode effect of hot pin is also more preferable.
Preferably: the integration hot pin piling strtucture further includes hot pin casing, and the hot pin casing is set to the cushion cap
On the outside of hot pin between top and the condensation segment.
Further: the hot pin casing is PVC casing or steel sleeve.
It is also provided with hot pin casing in the present invention, hot pin casing is set to the adiabatic section between condensation segment and evaporator section, i.e.,
Risk is hit by extraneous for preventing hot pin in hot pin part between cushion cap top and condensation segment.
Another object of the present invention is to provide a kind of construction method of integrated hot pin piling strtucture, the construction method packets
Include following steps:
The determination of S1, parameter: design size, the match ratio of concrete including determining pile foundation；The size of hot pin, hot pin
The arrangement of reinforcement of working medium type and loading and clump of piles pile foundation；
S2, pile foundation steel bar cage is rolled according to the parameter, and carries out pile foundation boring；
S3, it the hot pin is fixed on after the pile foundation steel bar cage is placed in the hole, and pour foundation pile concrete；
S4, the reinforcing bar for binding cushion cap and bridge pier part, pour cushion cap and bridge pier concrete, complete maintenance.
Construction method of the invention is directed to integrated hot pin piling strtucture, therefore, can be based on bearing capacity, anti_freeze uplift
It with frozen soil surveys data etc. and calculating is determined to the parameter of each section in integrated piling strtucture, wherein construction of the invention
Mode is also pouring construction, and construction procedure first carries out drilling binding pile foundation steel bar cage, to fix the steaming of hot pin on steel reinforcement cage
Section is sent out, is then irrigated to pile foundation, frost heave and thaw collapse phenomenon, i.e. first in construction can be reduced to greatest extent in this way
Hot pin is just placed in frozen soil and works by the time, then carries out subsequent pile foundation perfusion, cushion cap and perfusion of bridge pier etc. again, greatly
Heat absorption and the heat dissipation effect for improving pile foundation greatly, shorten the time returning to freeze of frozen soil around pile foundation.
Preferably: the size of hot pin described in S1, the working medium type of hot pin and loading by frozen soil survey data and group
Pile foundation concrete proportioning determines that the arrangement of reinforcement of the clump of piles pile foundation is calculated according to bearing capacity and anti_freeze uplift.
Preferably: drilling described in S2 is carried out using water drilling, is drilled into after designated depth and is immediately drained the water in the hole.
It is drilled in the present invention using water drilling, i.e., makes water flow by extremely tiny gap using high pressure, this is tiny
Water flow speed under high pressure effect is exceedingly fast, and possesses high kinetic energy, thus can be easily in frozen soil, steel plate or cutting steel etc.
It is punched on other hard objects, to reduce disturbance ever-frozen ground as far as possible.
Preferably: hot pin described in S3 is fixed on the vertical muscle of the pile foundation steel bar cage.
Preferably: when the intensity of the foundation pile concrete is conserved to 70% or more, starting to bind the cushion cap and bridge pier
Then partial reinforcing bar carries out template support, then carry out pouring for cushion cap and bridge pier concrete.
Preferably: the height that pours of bridge pier concrete described in S4 is located at the above 48-52cm of the cushion cap, and is not higher than bridge
The height of pier reinforcing bar.
Preferably: further including the structure type and the selection of material of hot pin casing in S1, further include by the hot pin in S4
Casing is mounted on the hot pin between the cushion cap top and hot pin condensation segment.
Compared with prior art, the invention has the following advantages:
Integrated hot pin piling strtucture of the invention can use " cold energy " of the thermal diode effect by nature of hot pin
It imports in pile foundation, the time returning to freeze of frozen soil around pile foundation can be shortened, reduce the bridge superstructure construction period.Wherein hot pin
Design parameter (such as hot pin size, working medium type, loading etc.) can pass through Pile Foundations Design size, mix Design
And bridge site area frozen soil survey data etc. determine, to carry out minute design and construction.Meanwhile construction party provided by the present invention
Method operates relatively simple, operability with higher and practicability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of integration hot pin piling strtucture provided by the embodiment of the present invention 1.
Description of symbols:
1, pile foundation；2, hot pin；21, evaporator section；22, condensation segment；3, cushion cap；4, hot pin casing；5, bridge pier.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments
It can be combined with each other at conflict.
Embodiment 1
As shown in Figure 1, the present invention provides a kind of integrated hot pin piling strtucture, including hot pin 2 and from bottom to top according to
Pile foundation 1, cushion cap 3 and the bridge pier 5 of secondary setting, hot pin 2 pass through cushion cap 3 and are axially embedded in pile foundation 1, and the evaporator section 21 of hot pin 2 prolongs
The bottom of pile foundation 1 is extended to, the condensation segment 22 of hot pin 2 exposes to the top of plummer 3.
Hot pin pile foundation of the invention is integrated, i.e., the multi-column pier foundation being made of pile foundation 1, cushion cap 3 and bridge pier 5, should
For multi-column pier foundation after by vertical load, the interaction of cushion cap 3, pile foundation 2, frozen soil makes its pile side resistance, end resistance, sedimentation etc.
Character changes and different from single pile, and bearing capacity is often different from the sum of each bearing capacity of single pile, and stability is preferable；Secondly pile foundation
The evaporator section 21 of hot pin 2 is embedded in 1, which extends to the bottom of the pile foundation 1, in this way, can use the heat of hot pin 2
Diode effect imports " cold energy " of nature in pile foundation 1, and realizes the heat exchange at each position in pile foundation 1, effectively solves
Multi-column pier foundation uses a large amount of concrete in small range, certainly will generate a large amount of heat of hydration, to increase stake week frozen soil
Time returning to freeze, or even influence frozen soil stable problem.
Therefore, not only heat exchanger effectiveness is high by the present invention, the heat absorption and good heat dissipation effect of each pile foundation 1 in multi-column pier foundation, and
Pile foundation concrete time returning to freeze is shortened, the bridge superstructure construction period is reduced.
In order to greatly improve heat transfer efficiency of the hot pin 2 in pile foundation 1, at the same also can more consolidate by hot pin 2, pile foundation 1,
Cushion cap 3 and the integrated form of bridge pier 5, improve bonding strength and efficiency of pile groups of the invention, pile foundation 1 is adopted in the present embodiment
First 2 evaporator sections 21 of hot pin are fixed on the steel reinforcement cage of bored concrete pile pile foundation 1 before pouring bored concrete pile with bored concrete pile.In addition
Pile foundation 1, cushion cap 3 and bridge pier 5 are integrated and are perfused, and will not generate that vibration, without squeezing soil, noise is small in construction.
Wherein the hot pin 2 of the present embodiment uses L-type hot pin, and the evaporator section 21 of such hot pin 2 is avoided bridge pier 5, expanded around
It dissipates, heat dissipation effect is more preferable, and the diameter design of hot pin 2 is not less than 80mm, to be easier to construct, while two pole of heat of hot pin 2
Tube effect is also more preferable.
Of course for prevention hot pin 2 by the extraneous risk hit, heat can also be set in integrated hot pin piling strtucture
Stick casing 4, hot pin casing 4 is set to the adiabatic section between condensation segment 22 and evaporator section 21, i.e., between 3 top of cushion cap and condensation segment 22
2 part of hot pin.The material of hot pin casing 4 can be PVC casing, or steel sleeve.
Embodiment 2
A kind of construction method of integration hot pin piling strtucture, the construction method the following steps are included:
S1, the size first, in accordance with bearing capacity calculation clump of piles pile foundation 1, number, arrangement of reinforcement, the ruler of top cushion cap 3 and bridge pier 5
The label of very little, arrangement of reinforcement and concrete, thickness of concrete cover should meet related specifications regulation；
It is surveyed according to principle of energy balance according to the design size of pile foundation 1, the mix-design of concrete and bridge site area
The size (including 2 evaporator section 21 of hot pin, 22 length of adiabatic section and condensation segment) of Data Design hot pin 2, the working medium type of hot pin 2 and
Loading；The diameter design of hot pin 2 is 80cm in the present embodiment；
S2, it carries out the drilling of pile foundation 2: using water drilling drilling construction, immediately drain the water in hole after drilling to completion；
S3, rolling pile foundation steel bar cage, and L-type hot pin 2 is fixed on the vertical muscle of pile foundation steel bar cage, hot pin will be had as early as possible
2 steel reinforcement cage is put into drilling, starts to pour pile foundation concrete；
S4, when the 70% of pile foundation concrete curing to design strength, start bind cushion cap 3 and 5 part of bridge pier reinforcing bar,
Template support is carried out after the completion；
S5, cushion cap 3,5 concrete of bridge pier being poured, the height that pours of 5 concrete of bridge pier is the above 50cm in 3 position of cushion cap, and
Expose bridge pier reinforcing bar, is then conserved.
Embodiment 3
A kind of construction method of integration hot pin piling strtucture, the construction method the following steps are included:
S1, the size first, in accordance with bearing capacity calculation clump of piles pile foundation 1, number, arrangement of reinforcement, the ruler of top cushion cap 3 and bridge pier 5
The label of very little, arrangement of reinforcement and concrete, thickness of concrete cover should meet related specifications regulation；
Money is surveyed according to the design size of pile foundation, the mix-design of concrete and bridge site area according to principle of energy balance
It the material design size (including 2 evaporator section 21 of hot pin, 22 length of adiabatic section and condensation segment) of hot pin 2, the working medium type of hot pin 2 and fills out
Charge；Hot pin 2 uses L-type hot pin, diameter 85cm in the present embodiment；
S2, it carries out the drilling of pile foundation 1: using water drilling drilling construction, immediately drain the water in hole after drilling to completion；
S3, rolling pile foundation steel bar cage, and L-type hot pin 2 is fixed on the vertical muscle of pile foundation steel bar cage, hot pin will be had as early as possible
2 steel reinforcement cage is put into drilling, starts to pour pile foundation concrete；
S4, when the 75% of pile foundation concrete curing to design strength, start bind cushion cap 3 and 5 part of bridge pier reinforcing bar,
Template support is carried out after the completion；
S5, cushion cap, bridge pier concrete are poured.The height that pours of bridge pier concrete is the above 48cm in cushion cap position, and is exposed
Bridge pier reinforcing bar, is conserved.
Embodiment 4
A kind of construction method of integration hot pin piling strtucture, the construction method the following steps are included:
S1, the size first, in accordance with bearing capacity calculation clump of piles pile foundation 1, number, arrangement of reinforcement, the ruler of top cushion cap 3 and bridge pier 5
The label of very little, arrangement of reinforcement and concrete, thickness of concrete cover should meet related specifications regulation；
It is surveyed according to principle of energy balance according to the design size of pile foundation 1, the mix-design of concrete and bridge site area
The size (including 2 evaporator section 21 of hot pin, 22 length of adiabatic section and condensation segment) of Data Design hot pin 2, the working medium type of hot pin 2 and
Loading；Hot pin 2 uses L-type hot pin, diameter 90cm in the present embodiment；
In addition the structure type and material of hot pin casing 4 are selected；
S2, it carries out the drilling of pile foundation 1: using water drilling drilling construction, immediately drain the water in hole after drilling to completion；
S3, rolling pile foundation steel bar cage, and L-type hot pin 2 is fixed on the vertical muscle of pile foundation steel bar cage, hot pin will be had as early as possible
2 steel reinforcement cage is put into drilling, starts to pour pile foundation concrete；
S4, when the 70% of pile foundation concrete curing to design strength, start bind cushion cap 3 and 5 part of bridge pier reinforcing bar,
Template support is carried out after the completion；
S5, cushion cap, bridge pier concrete are poured.The height that pours of bridge pier concrete is the above 52cm in cushion cap position, and is exposed
Bridge pier reinforcing bar；
On S6, the hot pin 2 being mounted on hot pin casing 4 between 2 condensation segment 22 of cushion cap top and hot pin.
The foregoing is merely a specific embodiment of the invention, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of integration hot pin piling strtucture, which is characterized in that the pile foundation that sets gradually including hot pin and from bottom to top is held
Platform and bridge pier, the hot pin pass through the cushion cap and are axially embedded in the pile foundation, and the evaporator section of the hot pin extends to described
The bottom of pile foundation, the condensation segment of the hot pin expose to the top of the plummer.
2. integration hot pin piling strtucture according to claim 1, which is characterized in that the pile foundation, cushion cap and bridge pier are
It is integrally perfused, the evaporator section of the hot pin defaults on the steel reinforcement cage of the pile foundation.
3. integration hot pin piling strtucture according to claim 1 or 2, which is characterized in that the hot pin is L-type hot pin,
The diameter of the hot pin is not less than 80mm.
4. integration hot pin piling strtucture according to claim 1, which is characterized in that the integration hot pin piling strtucture
It further include hot pin casing, the hot pin casing is set on the outside of the hot pin between the cushion cap top and the condensation segment.
5. integration hot pin piling strtucture according to claim 4, which is characterized in that the hot pin casing is PVC casing
Or steel sleeve.
6. a kind of construction method of hot pin piling strtucture integrated as described in any one of right 1-5, which is characterized in that including with
Lower step:
The determination of S1, parameter: design size, the match ratio of concrete including determining pile foundation；Size, the working medium of hot pin of hot pin
The arrangement of reinforcement of type and loading and clump of piles pile foundation；
S2, pile foundation steel bar cage is rolled according to the parameter, and carries out pile foundation boring；
S3, it the hot pin is fixed on after the pile foundation steel bar cage is placed in the hole, and pour foundation pile concrete；
S4, the reinforcing bar for binding cushion cap and bridge pier part, pour cushion cap and bridge pier concrete, complete maintenance.
7. construction method according to claim 6, which is characterized in that drilling described in S2 is carried out using water drilling, is drilled into finger
The water in the hole is drained immediately after depthkeeping degree.
8. construction method according to claim 6, which is characterized in that when the intensity of the foundation pile concrete is conserved to 70%
When above, start the reinforcing bar for binding the cushion cap and bridge pier part, then carries out template support, then carry out cushion cap and bridge pier coagulation
Soil pours.
9. construction method according to claim 6, which is characterized in that the height that pours of bridge pier concrete described in S4 is located at
The above 48-52cm of cushion cap, and it is not higher than the height of bridge pier reinforcing bar.
10. construction method according to claim 6, which is characterized in that further include in S1 hot pin casing structure type with
The selection of material further includes the heat being mounted on the hot pin casing between the cushion cap top and hot pin condensation segment in S4
On stick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465545.2A CN110185055A (en) | 2019-05-30 | 2019-05-30 | Integrated hot pin piling strtucture and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465545.2A CN110185055A (en) | 2019-05-30 | 2019-05-30 | Integrated hot pin piling strtucture and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110185055A true CN110185055A (en) | 2019-08-30 |
Family
ID=67719131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910465545.2A Pending CN110185055A (en) | 2019-05-30 | 2019-05-30 | Integrated hot pin piling strtucture and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110185055A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113957884A (en) * | 2021-10-28 | 2022-01-21 | 机械工业第六设计研究院有限公司 | Design and construction method of cast-in-situ bored pile-hot rod combined foundation |
| CN117739547A (en) * | 2023-12-18 | 2024-03-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel all Ji Re rod refrigerating device for permafrost region and construction method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU512268A1 (en) * | 1974-12-23 | 1976-04-30 | Северное Отделение Ордена Трудового Красного Знамени Научно-Исследовательского Института Оснований И Подземных Сооружений | Pile foundation |
| CN2589513Y (en) * | 2002-12-26 | 2003-12-03 | 刘纪福 | Heat pipe foundation pile applied to permafrost zone |
| CN105113489A (en) * | 2015-08-20 | 2015-12-02 | 中国科学院寒区旱区环境与工程研究所 | Method of reducing concrete hydration heat of cast-in-place pile in permafrost region |
-
2019
- 2019-05-30 CN CN201910465545.2A patent/CN110185055A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU512268A1 (en) * | 1974-12-23 | 1976-04-30 | Северное Отделение Ордена Трудового Красного Знамени Научно-Исследовательского Института Оснований И Подземных Сооружений | Pile foundation |
| CN2589513Y (en) * | 2002-12-26 | 2003-12-03 | 刘纪福 | Heat pipe foundation pile applied to permafrost zone |
| CN105113489A (en) * | 2015-08-20 | 2015-12-02 | 中国科学院寒区旱区环境与工程研究所 | Method of reducing concrete hydration heat of cast-in-place pile in permafrost region |
Non-Patent Citations (2)
| Title |
|---|
| 权董杰: "青藏铁路多年冻土区桥梁桩基沉降原因分析", 《铁道建筑》 * |
| 陈建兵等: "青藏高原冻土区桥梁使用状况调研及对新建工程的启示", 《公路交通科技（应用技术版）》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113957884A (en) * | 2021-10-28 | 2022-01-21 | 机械工业第六设计研究院有限公司 | Design and construction method of cast-in-situ bored pile-hot rod combined foundation |
| CN117739547A (en) * | 2023-12-18 | 2024-03-22 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel all Ji Re rod refrigerating device for permafrost region and construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108589718B (en) | Piles in Karst Region base construction method | |
| CN105113489B (en) | Method of reducing concrete hydration heat of cast-in-place pile in permafrost region | |
| CN110185055A (en) | Integrated hot pin piling strtucture and its construction method | |
| CN206308569U (en) | It is a kind of to reinforce the road structure for punishing the solution cavity that underlies | |
| CN108442404A (en) | Assembled composite ecotype retaining wall and its construction method | |
| CN105220697A (en) | Shaped steel and prestressed reinforced concrete combining structure support and construction method | |
| CN103485355A (en) | Frame-heat anchor pipe structure for preventing and treating cold-region slope collapse due to freeze thawing and construction method | |
| CN108755731A (en) | A kind of well foundation and construction method | |
| CN109914422A (en) | A kind of steel pipe and soil nailing combined type foundation pit supporting construction and construction method | |
| CN112095634A (en) | Anchor rod pile plate retaining wall combination device and construction method | |
| CN107663863B (en) | A kind of Permafrost Area pile foundation and its construction technology | |
| CN107859044A (en) | Soil embankment side slope protection unit and slope protecting device | |
| CN205934951U (en) | Permafrost region pile foundation | |
| CN103510458B (en) | Pile type continuous rigid frame bridge and construction method thereof | |
| CN208701661U (en) | The squeezed steel reinforcement cage reinforcement bored under-reamed filling pile of umbrella | |
| CN106245668A (en) | A kind of truss-like pile foundation and construction method thereof | |
| RU2317375C2 (en) | Pole for overhead system to be erected in heaving ground | |
| CN104234044B (en) | A kind of freezing process guard aperture shaped pile piling method | |
| CN205742161U (en) | A kind of novel high-strength prefabricated geothermal energy concrete tubular pile | |
| CN115434360A (en) | Narrow step pile anchor type tower crane foundation structure and construction method | |
| CN206015511U (en) | One implant post steel pipe column | |
| CN208219696U (en) | Assembled composite ecotype retaining wall | |
| CN209260651U (en) | A kind of river levee ruggedized construction | |
| CN209324377U (en) | Ledge method tunneling subway station arch springing ruggedized construction | |
| CN201915428U (en) | Hot rod structure for bridge pile foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190830 |