CN108444121A - After bore buried tubular type pouring type energy pile heat-exchange system and its construction method - Google Patents
After bore buried tubular type pouring type energy pile heat-exchange system and its construction method Download PDFInfo
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- CN108444121A CN108444121A CN201810100503.4A CN201810100503A CN108444121A CN 108444121 A CN108444121 A CN 108444121A CN 201810100503 A CN201810100503 A CN 201810100503A CN 108444121 A CN108444121 A CN 108444121A
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 241001074085 Scophthalmus aquosus Species 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 13
- 239000010959 steel Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention boring buried tubular type pouring type energy pile heat-exchange system after providing one kind, including energy pile and rear brill formula deep-well, the energy pile includes pile foundation, pile foundation steel bar cage and energy pile heat exchanging holes, the energy pile heat exchanging holes are set to the pile foundation center, it bores formula deep-well after described to connect with the energy pile heat exchanging holes, the energy pile heat exchanging holes and rear bore are placed with heat exchanger tube and are filled with filler in formula deep-well.The present invention solves the problems, such as that energy pile heat-exchange system cannot meet the requirement of a bearing stability in the prior art by being improved to the rear buried tubular type pouring type energy pile heat-exchange system structure of brill.In addition, the present invention also provides a kind of based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system.
Description
Technical field
The invention belongs to technical field of resource utilization, after being related to a kind of heat-exchange system and construction method more particularly to one kind
Bore buried tubular type pouring type energy pile heat-exchange system and its construction method.
Background technology
With Chinese society and economic transition, the single energy resource structure of tradition is difficult to continue, and ground-source heat pump system relies on
The advantages such as energy saving, reduction pollutant emission have become a kind of principal mode of clean energy resource.Laying heat exchanger tube must consider ground
Under spud in heat exchange well, not only construction cost is higher, landed property area, but also ground-source heat pump system well-digging workflow is being built
Before pile foundation, the working time is longer, and tremendous influence is brought to operation side and outer net supporting pipelines construction progress.To break through this
A little obstacles, energy pile heat transfer technology come into being, and energy pile heat-storage technology reduces earth source heat pump using architecture foundation pile as heat exchange well
The well-digging link of system, saves space, reduces cost.However the stake for being limited to building pile foundation is long, the heat exchanger tube of energy pile
Heat exchange amount in pile foundation is limited, and buried tube type energy pile generally binds heat exchanger tube on pile foundation steel bar cage in stake at present,
The length stake of especially multistage steel reinforcement cage connection can increase very complicated binding process, the strong influence construction of pile foundation engineering
Duration, this is the most immediate cause for limiting energy pile and failing to promote and apply.Subsequent occurrences of deep layer pipe laying energy pile heat-exchange system
The above technological deficiency is overcome, while solving and occupying the underground space and the limited technical problem of the shallow heat exchange amount of buried depth, but is existing
The drilling of heat-exchange system is located at a side in technology, the stabilization being not only difficult to ensure when being bored toward deep layer in the stake holes of top, and
And it is interfered with each other with the construction of top pile.When operation, heat exchange existing temperature field in stake side can cause stake to exist can not
The unbalance loading ignored.
Since pile foundation and deep-well heat pump composite structure need to consider between the two to become under stress field coupling in temperature field
The coordination problem of shape.It feeds back to obtain according to current energy pile test data, under the conditions of the big temperature difference (△ T=21 DEG C), because of temperature
Variation may produce up to the additional load of 1300KN, the stress tune of pile foundation imbedded pipe heat-exchanging system structure in heat transfer process in pile body
Whole and bearing capacity change can not be ignored.Therefore, energy pile heat-exchange system cannot meet the requirement of a bearing stability at present.
Invention content
The object of the present invention is to provide buried tubular type pouring type energy pile heat-exchange system and its construction method is bored after one kind, solve
The problem of certainly energy pile heat-exchange system cannot meet the requirement of a bearing stability in the prior art.
To achieve the above object, the present invention provides boring buried tubular type pouring type energy pile heat-exchange system after one kind, including
Energy pile and rear brill formula deep-well, the energy pile include pile foundation, pile foundation steel bar cage and energy pile heat exchanging holes, the energy pile heat exchange
Hole is set to the pile foundation center, and bore formula deep-well after described connects with the energy pile heat exchanging holes, the energy pile heat exchanging holes
Heat exchanger tube is placed in formula deep-well and filled with filler with rear bore.
Compared with the prior art, the invention has the advantages that：The energy pile heat exchanging holes are set to the pile foundation
Center is being in vertically symmetrical structure, and when operation, additional temp stress is symmetric, the existing temperature of stake side heat exchange
Field will not cause stake to generate unbalance loading, and the stress of foundation pile is made to be in best.
Preferably, the rear buried tubular type pouring type energy pile heat-exchange system of brill, further includes heat exchange protection of pipe positioning device,
The heat exchange protection of pipe positioning device is fixed on pile foundation earth's surface end end face center.Using heat exchange protection of pipe positioning device, energy
Play the role of protection heat exchanger tube, bears upper load, while positioning action is played to rear drilling deep hole.
Preferably, the heat exchange protection of pipe positioning device is the porous steel member of pre-formed disk shape.Exchange heat protection of pipe positioning dress
It sets and uses the porous steel member of pre-formed disk shape, borehole casing fixing device is prefabricated in the heat exchange protection of pipe positioning device.Make
The construction time can be saved with the porous steel member of pre-formed disk shape, while ensuring normal fortune of the heat exchanger tube under upper load effect
Row.
Preferably, the heat exchange protection of pipe positioning device is fixed in the pile foundation using chemical anchor bolts, improves and fixes
Stability, and it is easy to implement.
Preferably, the pile foundation uses the concrete material not less than C30 strength grades.
The present invention provides a kind of based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system, packet
Include following steps：
Step 1 carries out the energy pile driving construction, the smooth pile foundation top surface；
Step 2 sets up drilling machine, and the drilling rod of the drilling machine is directed at the pile foundation end face center and drills downward vertically, until boring
To predetermined depth, the energy pile heat exchanging holes and the rear brill formula deep-well are formed；
The heat exchanger tube is set in the energy pile heat exchanging holes and the rear brill formula deep-well, the heat exchange by step 3
Pipe explores downward to the rear brill formula deep-well bottom；
Step 4 backfills the energy pile heat exchanging holes and the rear brill formula deep-well gap with the filler；
The heat exchanger tube is connected to by step 5 with condensate correcting-distribuing device.
Compared with the prior art, provided by the invention to bore buried tubular type pouring type energy pile heat-exchange system afterwards based on described
Construction method can realize pile foundation construction and heat exchanger tube drilling construction cross-operation, and pile foundation equipment is not interfered to work continuously, construction
Method facilitates, and to the influence of work surface and overall progress of constructing when being conducive to reduce energy pile and buried pipe construction, is conducive to
Cross construction and large-scale operation simultaneously.
Preferably, behind the smooth pile foundation top surface, the heat exchange protection of pipe positioning is placed in the pile foundation end face center
Device, the drilling rod of the drilling machine are directed at heat exchange protection of pipe positioning device center and drill downward vertically, can be reduced in drilling
Pile crown destroys, and plays the role of protecting pile crown.
Description of the drawings
In order to illustrate the embodiments of the present invention more clearly, one will be made to attached drawing needed in the embodiment below simply
Ground introduction, it should be apparent that, drawings in the following description are some embodiments of the invention, for those of ordinary skill in the art
For, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 a are the overall schematic of the present invention；
Fig. 1 b are the whole interior structural schematic diagram of the present invention；
Fig. 2 a are the whole front view of the present invention；
Fig. 2 b are the whole interior structure front view of the present invention；
Fig. 3 a are the whole side view of the present invention；
Fig. 3 b are the whole interior structural side view of the present invention；
Fig. 4 is the overall top view of the present invention；
Fig. 5 a are the pile crown schematic diagram of the present invention；
Fig. 5 b are the pile crown internal structure schematic diagram of the present invention；
Fig. 6 is the heat exchange protection of pipe positioning device schematic diagram of the present invention；
Fig. 7 is the heat exchange protection of pipe positioning device vertical view of the present invention；
Fig. 8 is single U heat exchange top schematic diagram of the present invention；
Fig. 9 is single U heat exchange lower part schematic diagram of the present invention；
Figure 10 is the double-U-shaped parallel heat exchanger tube top schematic diagram of the present invention；
Figure 11 is the double-U-shaped parallel heat exchanger tube lower part schematic diagram of the present invention；
Figure 12 is the double-U-shaped tandem heat exchanger tube top schematic diagram of the present invention；
Figure 13 is the double-U-shaped tandem heat exchanger tube lower part schematic diagram of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
As shown in Fig. 1 a to Fig. 4, the present invention provides boring buried tubular type pouring type energy pile heat-exchange system after one kind, including
Energy pile 3 and rear brill formula deep-well 7, the energy pile 3 include pile foundation 2, pile foundation steel bar cage 4 and energy pile heat exchanging holes 5, the energy
Stake heat exchanging holes 5 are set to 2 center of the pile foundation, and bore formula deep-well 7 after described connects with the energy pile heat exchanging holes 5, the energy
Source stake heat exchanging holes 5 and rear bore are placed with heat exchanger tube 6 and are filled with filler 8 in formula deep-well 7.
Preferably, the filler 8 selects bentonite or fine sand, preferable heat transfer process can be played.
In some embodiments, using pouring type foundation pile as 3 pile body structure of the energy pile, including cast-in-situ bored pile,
Driven cast-in-place pile, manually digging hole filling pile, explosive expansion bored concrete pile, the preferred 800mm of 3 diameter of the energy pile, the long preferably 30m of stake,
The pile foundation 2 is preferably using the concrete material not less than C30 strength grades.
In some embodiments of the invention, it further includes that heat exchanger tube is protected that buried tubular type pouring type energy pile heat-exchange system is bored after described
Positioning device 1 is protected, the heat exchange protection of pipe positioning device 1 is fixed on 2 earth's surface end end face center of the pile foundation.Such as Fig. 5 a to Fig. 7
It is shown, in some embodiments, 4 bolts hole 12 are reserved in the heat exchange protection of pipe positioning device 1, by the bolt hole
12 squeeze into chemical anchor bolts 11 is fixed on 2 earth's surface end end face center of the pile foundation, describedization by the heat exchange protection of pipe positioning device 1
It learns 11 specification of anchor bolt and is not less than M20*260.The heat exchange protection of pipe positioning device 1 is preferably the porous steel member of pre-formed disk shape,
Borehole casing fixing device is prefabricated in the heat exchange protection of pipe positioning device 1, side is equipped with groove, accommodates and the heat exchanger tube
The horizontal water inflow pipe 9 and horizontal outlet pipe 10 of 6 connections.The pre-formed disk shape Multi-hole steel scantling is preferably overall diameter
300mm, interior diameter 150mm, height 60mm.
The heat exchanger tube 6 preferably uses high density polyethylene (HDPE) (HDPE) heat exchanger tube, outer diameter 32mm, wall thickness 3mm.It is described to change
A variety of types of attachment, such as single U-shaped, double U tandem types and double U parallel connection types can be selected in heat pipe 6.As shown in Figure 8 and Figure 9, single
6 middle bent of heat exchanger tube be two sections of are formationed it is U-shaped, two sections slightly longer than 110m, the heat exchanger tube 6 respectively with the horizontal water inflow pipe
9 and the welding at the heat exchange protection of pipe positioning device 1 of stake top one end of horizontal outlet pipe 10；As shown in Figure 10 and Figure 11, two are changed
Heat pipe 6 is in parallel, and every 6 middle bent of the heat exchanger tube is that two sections of formation are U-shaped, and every section is slightly longer than 110m, the every heat exchange
The welding at the heat exchange protection of pipe positioning device 1 of stake top one end with the horizontal water inflow pipe 9 and horizontal outlet pipe 10 respectively of pipe 6；
It is as shown in Figure 12 and Figure 13 the heat exchanger tube 6 of double U tandem types, the heat exchanger tube 6 is bent three times, forms three U-shaped, heat exchange
Pipe 6 is bent into four sections, 110m is slightly longer than per segment length, respectively with the horizontal water inflow pipe 9 and horizontal outlet pipe 10 in stake top
Welding at the heat exchange protection of pipe positioning device 1 of one end.The horizontal water inflow pipe 9 and horizontal outlet pipe 10 are molten with inlet and outlet pipes respectively
It connects, the inlet and outlet pipes are connect with condensate correcting-distribuing device.
The present invention also provides a kind of based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system, packet
Include following steps：
Step 1 carries out the energy pile 3 according to pile foundation engineering design requirement and arrangement and method for construction and constructs, the pile foundation 2 at
The forms pore-forming such as rotary drilling rig or manually digging hole can be used in stake process, then transfers the pile foundation steel bar cage 4, and pour coagulation
Soil conserves 7 days after the pile foundation 2 has poured, and will be above the concrete disintegrating of designed elevation to designed elevation, smooth described
2 top surface of pile foundation；
Step 2, set up drilling machine, optional model such as DZ-200 types multifunctional drill, the drilling machine drilling rod alignment described in
2 end face center of pile foundation drills downward vertically, and bore diameter size is 110-150mm, until being drilled into predetermined depth, forms the energy
Source stake heat exchanging holes 5 and the rear brill formula deep-well 7；It is preferably 100m that 7 depth of formula deep-well is bored after described, the energy pile heat exchanging holes 5
It is determined according to heat exchanger tube model with rear 7 diameter of formula deep-well that bores, such as when heat exchanger tube is that list is U-shaped, the energy pile heat exchange
Hole 5 and rear 7 a diameter of 110mm of brill formula deep-well, when heat exchanger tube is double U tandem types or double U parallel connection types, the energy pile is changed
Hot hole 5 and rear 7 a diameter of 150mm of brill formula deep-well；
Step 3 extracts drill bit and casing, and heat exchanger tube 6 is passed through 5 test of energy pile heat exchanging holes using the drill bit
To rear 7 bottom of brill formula deep-well；
Step 4 backfills the energy pile heat exchanging holes 5 and rear 7 gap of brill formula deep-well with the filler 8；
Step 5, by heat exchanger tube 6 by heat exchange protection of pipe positioning device 1 Sidewall Height, by the heat exchanger tube 6 respectively with
10 welding of the horizontal water inflow pipe 9 and horizontal outlet pipe, horizontal water inflow pipe 9 and horizontal outlet pipe 10 are molten with inlet and outlet pipes respectively
It connects, inlet and outlet pipes are connect with condensate correcting-distribuing device.
Further include consolidating in 2 end face center of the pile foundation behind smooth 2 top surface of the pile foundation in some embodiments of the invention
Surely the drilling rod of the step of placing heat exchange protection of pipe positioning device 1, the drilling machine is directed at the heat exchange protection of pipe positioning device 1
Center drills downward vertically.
It is that 100m is corresponding with rear 7 depth of formula deep-well of boring, 6 length of the heat exchanger tube is preferably 220m.It is changed using described
It needs to carry out pipeline inspection side before heat pipe 6, the heat exchanger tube 6 is bent into U-shaped, water-filling in pipe, and the plus-pressure table on gas port in,
Using not less than 12kgf/cm2Pressure pressure testing, it is ensured that pipeline is excellent.Pipeline leak detection.Water is immersed in 6 bottom of the heat exchanger tube
Middle bubble-free is emerged, or is applied to junction with suds, goes through bubble-free, voltage stabilizing at least 15 points of kinds, pressure drop after voltage stabilizing
3% is should not exceed, and without leakage phenomenon, then pipeline is excellent, No leakage.After leak detection, gas head is cut.
Those skilled in the art are supplied to the purpose described to the description of the various embodiments of the present invention above.It is not
It is intended to exhaustive or is not intended to and limits the invention to single disclosed embodiment.As described above, the present invention's is various
It substitutes and variation will be apparent for above-mentioned technology one of ordinary skill in the art.Therefore, although specifically begging for
Some alternative embodiments are discussed, but other embodiment will be apparent or those skilled in the art are opposite
It is easy to obtain.The present invention is intended to include all replacements of the present invention crossed by discussion herein, modification and variations, and fall
Other embodiment in the spirit and scope of above-mentioned application.
Although depicting the present invention by embodiment, it will be appreciated by the skilled addressee that there are many deformations by the present invention
With variation without departing from the spirit of the present invention, it is desirable to which the attached claims include these deformations and change without departing from the present invention
Spirit.
Claims (7)
1. buried tubular type pouring type energy pile heat-exchange system is bored after, which is characterized in that including energy pile (3) and rear brill formula deep-well
(7), the energy pile (3) includes pile foundation (2), pile foundation steel bar cage (4) and energy pile heat exchanging holes (5), the energy pile heat exchanging holes
(5) it is set to the pile foundation (2) center, bore formula deep-well (7) after described connects with the energy pile heat exchanging holes (5), the energy
Source stake heat exchanging holes (5) and rear bore are placed with heat exchanger tube (6) and are filled with filler (8) in formula deep-well (7).
2. boring buried tubular type pouring type energy pile heat-exchange system after as described in claim 1, which is characterized in that further include heat exchanger tube
Positioning device (1), the heat exchange protection of pipe positioning device (1) is protected to be fixed on the pile foundation (2) earth's surface end end face center.
3. boring buried tubular type pouring type energy pile heat-exchange system after as claimed in claim 2, which is characterized in that the heat exchanger tube is protected
It is the porous steel member of pre-formed disk shape to protect positioning device (1), and borehole casing is prefabricated on the heat exchange protection of pipe positioning device (1)
Fixing device.
4. boring buried tubular type pouring type energy pile heat-exchange system after as claimed in claim 2, which is characterized in that utilize chemical anchor bolts
(11) the heat exchange protection of pipe positioning device (1) is fixed in the pile foundation (2).
5. boring buried tubular type pouring type energy pile heat-exchange system after as described in claim 1, which is characterized in that the pile foundation (2)
Using the concrete material not less than C30 strength grades.
6. based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system as described in claim 1, including it is following
Step：
Step 1 carries out the energy pile (3) construction, smooth pile foundation (2) top surface；
Step 2 sets up drilling machine, and the drilling rod of the drilling machine is directed at pile foundation (2) end face center and drills downward vertically, until boring
To predetermined depth, the energy pile heat exchanging holes (5) and the rear brill formula deep-well (7) are formed；
The heat exchanger tube (6) is set to the energy pile heat exchanging holes (5) and the rear formula deep-well (7) that bores is interior by step 3, described
Heat exchanger tube (6) explores downward to described rear brill formula deep-well (7) bottom；
Step 4 backfills the energy pile heat exchanging holes (5) and described rear brill formula deep-well (7) gap with the filler (8)；
The heat exchanger tube (6) is connected to by step 5 with condensate correcting-distribuing device.
7. construction method as claimed in claim 6, which is characterized in that behind smooth pile foundation (2) top surface, in the pile foundation
(2) end face center places the heat exchange protection of pipe positioning device (1), and the drilling rod of the drilling machine is directed at the heat exchange protection of pipe positioning
Device (1) center drills downward vertically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100503.4A CN108444121B (en) | 2018-02-01 | 2018-02-01 | Based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810100503.4A CN108444121B (en) | 2018-02-01 | 2018-02-01 | Based on the rear construction method for boring buried tubular type pouring type energy pile heat-exchange system |
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| CN108444121A true CN108444121A (en) | 2018-08-24 |
| CN108444121B CN108444121B (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114076418A (en) * | 2021-10-27 | 2022-02-22 | 中交第二公路勘察设计研究院有限公司 | Heat exchange system based on deep buried pipe energy support pile and construction process |
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