CN109083159A - A kind of cast-in-situ steel reinforced concrete level goes along with sb. to guard him energy stake and construction method - Google Patents
A kind of cast-in-situ steel reinforced concrete level goes along with sb. to guard him energy stake and construction method Download PDFInfo
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- CN109083159A CN109083159A CN201811135803.2A CN201811135803A CN109083159A CN 109083159 A CN109083159 A CN 109083159A CN 201811135803 A CN201811135803 A CN 201811135803A CN 109083159 A CN109083159 A CN 109083159A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 15
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000011065 in-situ storage Methods 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 131
- 238000001816 cooling Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 239000002689 soil Substances 0.000 claims description 37
- 239000012530 fluid Substances 0.000 claims description 30
- 230000002787 reinforcement Effects 0.000 claims description 24
- 238000009412 basement excavation Methods 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 239000004567 concrete Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000013529 heat transfer fluid Substances 0.000 claims 12
- 238000007599 discharging Methods 0.000 claims 2
- 238000003860 storage Methods 0.000 abstract description 49
- 230000008676 import Effects 0.000 abstract description 23
- 238000005520 cutting process Methods 0.000 abstract description 3
- 101150054854 POU1F1 gene Proteins 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000973497 Siphonognathus argyrophanes Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Piles And Underground Anchors (AREA)
Abstract
A kind of cast-in-situ steel reinforced concrete level goes along with sb. to guard him energy stake and construction method, and the native side of the intracorporal back of stake is equipped at intervals with several and carries on the back native side U-shaped heat exchanger tube, and stake is intracorporal to meet native side and be equipped at intervals with several and meet native side U-shaped heat exchanger tube；It is equipped in pile body for completely cutting off the thermal insulation board carried on the back native side U-shaped heat exchanger tube and meet native side U-shaped heat exchanger tube exchange heat；Two nozzles for carrying on the back native side U-shaped heat exchanger tube are connected with the first outlet of the first import of boiler and boiler respectively；Two nozzles for meeting native side U-shaped heat exchanger tube are connected with the first outlet of the first import of cold water storage cistern and cold water storage cistern respectively；Second import of boiler and the second outlet of boiler are connected with to the entrance and exit for building pipeline for heating and cooling for heating and cooling respectively；Second import of cold water storage cistern and the second outlet of cold water storage cistern are connected with to the entrance and exit for building pipeline for heating and cooling respectively.
Description
Technical field
The invention belongs to pile foundation engineering fields, and in particular to a kind of cast-in-situ steel reinforced concrete level goes along with sb. to guard him energy stake and construction
Method.
Background technique
It being utilized based on the considerations of to the underground space, engineers and technicians combine earth source heat pump with building pile foundation,
It is proposed a kind of technical solution of energy stake (energy piles).By heat exchanger tube inbuilt in pile foundation, it is low to carry out shallow-layer
Warm geothermal energy conversion can also realize the heat exchange with superficial-layer geothermal energy while meeting ordinary pile foundation mechanics function by pile body.
And using energy stake as the horizontal fender post of foundation pit, it is answered since energy pile system can provide temperature in the excavation of foundation pit stage
Power can be used to resist the horizontal distortion of pile body.Shallow layer geothermal energy is carried out but also as conventional engine stake in structure service stage
Conversion, realize one it is multi-purpose.
Due to safety concerns, compared to the energy pile for being generally used for vertically carrying, it is unfavorable to bearing capacity not only to generate
Temperature stress, moreover it is possible to generate the advantageous temperature stress for resisting pile body horizontal distortion, increase reliability of structure.For construction
Consider, compare common cast-in-situ bored pile, only more binding heat exchanger tubes and heat-insulating shield this step, construction is simple is easy to use.For
To economic consideration, fender post is just discarded after the completion of foundation pit, and it is become energy pile, heats to neighboring buildings cooling supply,
Realizing turns waste into wealth, with good economic efficiency, and excavation of foundation pit stage level goes along with sb. to guard him energy stake and can generate temperature and answers
Power resistance to deformation saves expense so it is long to reduce stake to a certain extent.
Chinese patent CN105350522A discloses production and the user of a kind of prefabricated reinforced concrete energy stake system
Method can be carried out the conversion of shallow-layer low temperature geothermal energy, be neighboring buildings heat supply, but this kind of stake is used as vertical bearing pile, is vertically held more
Load power, and energy pile stake at runtime, generate the temperature stress unfavorable to bearing capacity, are unfavorable for the stability of stake.And it is such
Stake carries out reasonable Arrangement without exchange heat pipe position, cannot be used to reduce the horizontal distortion of pile body.
Chinese patent CN105113486A discloses a kind of for foundation pit enclosure and the drill-pouring in slope retaining field
Stake.In the construction stage, it is not used to reduce the temperature stress of pile lateral displacement.And after the completion of foundation pit construction, stake is just lost
Effect has been gone, can have been discarded, cause larger waste.
Summary of the invention
In order to solve the disadvantage that existing energy stake cannot resist pile body horizontal distortion, the present invention provides a kind of cast in place reinforced bar
Concrete horizontal goes along with sb. to guard him energy stake and construction method, can not only resist pile body horizontal distortion, Er Qieji in the excavation of foundation pit stage
Discarded stake can be recycled after the completion of hole, carry out the conversion of shallow-layer low temperature geothermal energy, be surrounding buildings cold and heat supply.
The technical solution adopted by the present invention is that:
The embodiment of the present application provides a kind of cast-in-situ steel reinforced concrete level and goes along with sb. to guard him energy stake, including the stake being plugged in foundation pit
Body, the pile body are embedded in the soil body of the foundation pit along axial bottom end fixation, the pile body along axial top vertically to
Upper extension；
Steel reinforcement cage is embedded in the pile body, the native side of the intracorporal back of stake is equipped at intervals with several and carries on the back native side U-shaped heat exchange
Pipe, the stake is intracorporal to meet native side and is equipped at intervals with several and meet native side U shape heat exchanger tube；And the native side U-shaped heat exchanger tube of the back and institute
It states and meets native side U-shaped heat exchanger tube and be fixed on the steel reinforcement cage；
It is equipped in the pile body for completely cutting off the native side U-shaped heat exchanger tube of the back and described to meet native side U-shaped heat exchanger tube exchange hot
The thermal insulation board of amount, and the thermal insulation board is plugged in the native side U shape heat exchanger tube of the back and described meets between native side U-shaped heat exchanger tube；
The tube bottom for carrying on the back native side U-shaped heat exchanger tube and the tube bottom for meeting native side U-shaped heat exchanger tube are respectively positioned in the pile body,
Two nozzles for carrying on the back native side U-shaped heat exchanger tube and two nozzles for meeting native side U-shaped heat exchanger tube are axially penetrated through along described
The top surface of the pile body；
Two nozzles for carrying on the back native side U-shaped heat exchanger tube respectively with the first import of boiler and the boiler first
Outlet is connected, and the native side U-shaped heat exchanger tube of each back forms a first circulation circuit with the boiler respectively；It is described
The first water pump is in series on first circulation circuit, and first water pump is located at outside the pile body；
Two nozzles for meeting native side U-shaped heat exchanger tube respectively with the first import of cold water storage cistern and the cold water storage cistern first
Outlet is connected；And it each meets native side U-shaped heat exchanger tube and forms a second circulation circuit with the cold water storage cistern respectively；Described second
The second water pump is in series on circulation loop, and second water pump is located at outside the pile body；
The first inlet for injecting from the first heat-conducting fluid to boiler is offered on the boiler and for arranging
The first discharge port of first heat-conducting fluid out；It is offered on the cold water storage cistern for injecting the second thermally conductive stream into the cold water storage cistern
Second outlet of the second inlet of body and the second heat-conducting fluid for being discharged in the cold water storage cistern；
The second outlet of second import of the boiler and the boiler respectively with it is for heating and cooling for heating and cooling to building
The entrance and exit of pipeline is connected；
Second import of the cold water storage cistern and the second outlet of the cold water storage cistern are respectively and to building pipeline for heating and cooling
Entrance and exit is connected；
And the second import of the boiler, the second outlet of the boiler, the second import of the cold water storage cistern and institute
It states and is respectively equipped with switch in the second outlet of cold water storage cistern.
Further, first heat-conducting fluid and second heat-conducting fluid are water.
Further, the thermal insulation board is axially disposed within the centre of the pile body described in.
Further, the native side of the intracorporal back of the stake is equipped at intervals with the native side U-shaped heat exchanger tube of two back, and the stake is intracorporal to meet
Native side is equipped at intervals with two and meets native side U-shaped heat exchanger tube；And the native side U-shaped heat exchanger tube of the back and described meet native side U-shaped heat exchanger tube point
It is not symmetricly set on the two sides of the thermal insulation board.
The embodiment of the present application also provides the construction method that a kind of cast-in-situ steel reinforced concrete level goes along with sb. to guard him energy stake, including following
Step:
(1) steel reinforcement cage is installed in foundation pit, several are carried on the back into the back soil side that native side U-shaped heat exchanger tube is fixed on the steel reinforcement cage
On, and two nozzles for carrying on the back native side U-shaped heat exchanger tube are respectively exposed to the upper end of the steel reinforcement cage；Several are met into native side U
Shape heat exchanger tube is separately fixed at the meeting on native side of the steel reinforcement cage, and two nozzles for meeting native side U-shaped heat exchanger tube are outer respectively
It is exposed to the upper end of the steel reinforcement cage；
Thermal insulation board is installed on the steel reinforcement cage, the thermal insulation board is fixed on the native side U shape heat exchanger tube of the back and described meets
On steel reinforcement cage between native side U-shaped heat exchanger tube；
(2) placing concrete on the steel reinforcement cage, to form pile body, and two pipes for carrying on the back native side U-shaped heat exchanger tube
Mouth, two nozzles for meeting native side U-shaped heat exchanger tube are respectively exposed to the upper end of the pile body；
(3) boiler and the cold water storage cistern are arranged outside the pile body；
By two nozzles for carrying on the back native side U-shaped heat exchanger tube respectively with the first import of the boiler and the boiler
First outlet be connected, and the native side U-shaped heat exchanger tube of each back forms a first circulation with the boiler respectively and returns
Road；
By two nozzles for meeting native side U-shaped heat exchanger tube respectively with the first import of the cold water storage cistern and the cold water storage cistern
First outlet be connected, and it is each described meet native side U-shaped heat exchanger tube and form a second circulation with the cold water storage cistern respectively return
Road；
(4) in the excavation of foundation pit stage, the first heat-conducting fluid of heat, and the first thermally conductive stream are injected into the boiler
The temperature of body is higher than the temperature of pile body and pile body surrounding formation in foundation pit；Cold described second is injected into the cold water storage cistern to lead
Hot fluid, and the temperature of second heat-conducting fluid is lower than the temperature of pile body and pile body surrounding formation in foundation pit；
It is higher than the temperature of the pile body and pile body surrounding formation in foundation pit due to the temperature of first heat-conducting fluid, described the
One heat-conducting fluid can make the back soil side of the pile body generate expansion, generate temperature stress, to resist in the excavation of foundation pit mistake
Pile body deformation in journey；
Temperature due to the second heat-conducting fluid temperature lower than pile body and pile body surrounding formation in foundation pit, described second
Heat-conducting fluid can make the native side of meeting of pile body generate contraction, generate temperature stress, so that the pile body resisted in Excavation Process becomes
Shape；
(5) after the excavation of foundation pit, normal-temperature water is injected into the boiler and the cold water storage cistern, and open
Second import of the boiler, the second outlet of the boiler, the second import of the cold water storage cistern and the cold water storage cistern
Switch in second outlet；
Summer, the room temperature when the pipeline for heating and cooling gives the building cooling supply, in the boiler and the cold water storage cistern
Water can be cooled down through first circulation circuit and second circulation circuit by the ground temperature in pile body and pile body surrounding formation respectively, and after cooling down
Normal-temperature water flow into and give building cooling supply in pipeline for heating and cooling；
Winter, the room temperature when the pipeline for heating and cooling gives the building heating, in the boiler and the cold water storage cistern
Water can be heated through first circulation circuit and second circulation circuit by the ground temperature in pile body and pile body surrounding formation respectively, and after heating
Normal-temperature water flow into pipeline for heating and cooling to building heating.
The beneficial effects of the present invention are embodied in:
1, in the excavation of foundation pit stage, native face (tension side) is met using circulating chilled water, pile body is generated and shrinks, the native side of back (by
Press side) hot water circuit is used, so that pile body is generated expansion, the temperature stress generated by temperature, water when for resisting excavation of foundation pit
The horizontal stress that flat fender post is subject to reduces the deformation of fender post.
2, after the completion of construction, discarded pile body can do conventional engine stake again, so that the temperature of underground constant zone of subsurface temperature be transmitted
To superstructure, geothermal energy resources are made full use of, superstructure is made to achieve the effect that " cool in summer and warm in winter ".
3, the present invention one is mostly used, can be in excavation of foundation pit stage reduction pile body horizontal distortion and in rear handle of constructing
Discarded fender post is used as energy pile, thus achieve the purpose that turn waste into wealth, and material is simple, it is easy for installation, it is easy to
Control, it is energy saving, it is with a wide range of applications.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention in an embodiment.
Fig. 2 is the top view of pile body in an embodiment.
Fig. 3 is the structural schematic diagram carried on the back native side U-shaped heat exchanger tube in an embodiment or meet native side U-shaped heat exchanger tube.
Fig. 4 is that energy stake of the present invention is in the operation principle schematic diagram in excavation of foundation pit stage in an embodiment, wherein in pile body
Arrow indicate water (flow) direction.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the invention patent, 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, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, such as there is term "
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " peace such as occur
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
Referring to attached drawing, the present embodiment provides a kind of cast-in-situ steel reinforced concrete levels to go along with sb. to guard him energy stake, including is plugged in foundation pit 1
Interior pile body 2, the pile body 2 are embedded in the soil body of the foundation pit 1 along axial bottom end fixation, and the pile body 2 is along axial direction
Top extends straight up；
Specifically, the pile body 2 is cast-in-situ steel reinforced concrete stake, the length of the pile body 2 is 25~35cm, the stake
The stake diameter of body 2 is 40~100cm.The pile body is cylindrical shape.Axial direction in the present embodiment refers to the center of the pile body 2
Axis direction.
Steel reinforcement cage 5 is embedded in the pile body 2, the back soil side in the pile body 2 is equipped at intervals with the native side U-shaped of several back and changes
Heat pipe 3, the native side of meeting in the pile body 2 are equipped at intervals with several and meet native side U-shaped heat exchanger tube 4；And the native side U-shaped heat exchanger tube of the back
It 3 and described meet native side U shape heat exchanger tube 4 and is fixed on the steel reinforcement cage 5；
It is equipped in the pile body for completely cutting off the native side U-shaped heat exchanger tube 3 of the back and described meeting the native exchange of side U-shaped heat exchanger tube 4
The thermal insulation board 6 of heat, and the thermal insulation board 6 be plugged in the native side U-shaped heat exchanger tube 3 of the back and it is described meet native side U-shaped heat exchanger tube 4 it
Between；
Further, the thermal insulation board 6 is along the centre for being axially disposed within the pile body 2.
Further, the length of the thermal insulation board 6 is 2/3rds of 2 length of pile body, and the top of the thermal insulation board 6
It holds concordant with the top of the pile body 2.
Further, the back soil side in the pile body 2 is equipped at intervals with the native side U-shaped heat exchanger tubes 3 of two back, in the pile body 2
Native side of meeting be equipped at intervals with two and meet native side U-shaped heat exchanger tube 4；And it the native side U-shaped heat exchanger tube 3 of the back and described meet native side U-shaped and changes
Heat pipe 4 is symmetrically arranged at the two sides of the thermal insulation board 6.
The tube bottom for carrying on the back native side U-shaped heat exchanger tube 3 and the tube bottom for meeting native side U-shaped heat exchanger tube 4 are respectively positioned on the pile body 2
Interior, two nozzles for carrying on the back native side U-shaped heat exchanger tube 3 and two nozzles for meeting native side U-shaped heat exchanger tube 4 are along the axial direction
Through the top surface of the pile body 2；
Two nozzles for carrying on the back native side U-shaped heat exchanger tube 3 respectively with the first import of boiler 11 and the boiler 11
First outlet be connected, and the native side U-shaped heat exchanger tube 3 of each back forms a first circulation with the boiler 11 respectively
Circuit；The first water pump 8 is in series on the first circulation circuit, and first water pump 8 is located at outside the pile body 2；
Two nozzles for meeting native side U-shaped heat exchanger tube 4 respectively with the first import of cold water storage cistern 12 and the cold water storage cistern
First outlet is connected；And it each meets native side U-shaped heat exchanger tube 4 and forms a second circulation circuit with the cold water storage cistern 12 respectively；
The second water pump 7 is in series on the second circulation circuit, and second water pump 7 is located at outside the pile body 2；
Further, a nozzle for carrying on the back native side U-shaped heat exchanger tube 3 by the first water pipe and the boiler 11 into
Mouth connection, and the first water pump is arranged in series on first water pipe.
Further, a nozzle for meeting native side U-shaped heat exchanger tube 4 by the second water pipe and the cold water storage cistern 12 into
Mouth connection, and the second water pump is arranged in series on second water pipe.
The first inlet for injecting the first heat-conducting fluid into the boiler 11 is offered on the boiler 11
With the first discharge port of the first heat-conducting fluid for being discharged in the boiler 11；Offered on the cold water storage cistern 12 for
Second inlet of the second heat-conducting fluid of injection and second thermally conductive for being discharged in the cold water storage cistern 12 in the cold water storage cistern 12
Second outlet of fluid；
Further, the heater for heating the first heat-conducting fluid in the boiler, institute are equipped in the boiler 11
State the cooler for the second heat-conducting fluid being equipped in the cooling cold water storage cistern in cold water storage cistern.
The second outlet of second import of the boiler 11 and the boiler respectively with give building 14 confessions for heating and cooling
The entrance and exit of changes in temperature pipeline is connected；
The second outlet of second import of the cold water storage cistern 12 and the cold water storage cistern 12 respectively with it is for heating and cooling to building 14
The entrance and exit of pipeline is connected；
Specifically, the boiler 11 and the cold water storage cistern 12 are connected by pipeline 13 with 14 pipelines for heating and cooling of building
It is logical.
And the second import of the boiler 11, the second outlet of the boiler 11, the cold water storage cistern 12 second into
Switch is respectively equipped in the second outlet of mouth and the cold water storage cistern 12.
Further, first heat-conducting fluid and second heat-conducting fluid are water.
Specifically, the native side U-shaped heat exchanger tube 3 of the back and the caliber for meeting native side U-shaped heat exchanger tube 4 are 5~15cm.
A kind of cast-in-situ steel reinforced concrete level described in the present embodiment goes along with sb. to guard him the construction method of energy stake, including following step
It is rapid:
(1) steel reinforcement cage 5 is installed in foundation pit 1, several are carried on the back into native side U-shaped heat exchanger tube 3 and is fixed on the steel reinforcement cage 5
It carries on the back on native side, and two nozzles for carrying on the back native side U-shaped heat exchanger tube 3 are respectively exposed to the upper end of the steel reinforcement cage 5；By several
It meets native side U-shaped heat exchanger tube 4 and is separately fixed at the meeting on native side of the steel reinforcement cage 5, and two for meeting native side U-shaped heat exchanger tube 4
Nozzle is respectively exposed to the upper end of the steel reinforcement cage 5；
Thermal insulation board 6 is installed on the steel reinforcement cage 5, the thermal insulation board 6 is fixed on the native side U-shaped heat exchanger tube 3 of the back and institute
It states on the steel reinforcement cage met between native side U-shaped heat exchanger tube 4；It the native side U-shaped heat exchanger tube 3 of the back and described meet native side U-shaped heat exchanger tube 4 and closes
It is symmetrical in the thermal insulation board 6；
(2) placing concrete on steel reinforcement cage 5, to form pile body 2, and two pipes for carrying on the back native side U shape heat exchanger tube
Mouth, two nozzles for meeting native side U-shaped heat exchanger tube are respectively exposed to the upper end of the pile body；
(3) boiler 11 and the cold water storage cistern 12 are arranged outside the pile body 2；
By two nozzles for carrying on the back native side U-shaped heat exchanger tube 3 respectively with the first import of boiler 11 and the boiler
11 first outlet is connected, and the native side U-shaped heat exchanger tube 3 of each back forms one first with the boiler 11 respectively and follows
Loop back path；
By two nozzles for meeting native side U-shaped heat exchanger tube 4 respectively with the first import of cold water storage cistern 12 and the cold water storage cistern
12 first outlet is connected, and it is each described meet native side U-shaped heat exchanger tube 4 and form one second with the cold water storage cistern 12 respectively follow
Loop back path.
(4) in the excavation of foundation pit stage, the first heat-conducting fluid of heat is injected into the boiler 11, and described first thermally conductive
The temperature of fluid is higher than the temperature of 12 surrounding formation of pile body 2 and pile body in foundation pit；Cold institute is injected into the cold water storage cistern 12
The second heat-conducting fluid is stated, and the temperature of second heat-conducting fluid is lower than the temperature of 2 surrounding formation of pile body 2 and pile body in foundation pit 1
Degree；
Since the temperature of first heat-conducting fluid is higher than the temperature of 12 surrounding formation of pile body 2 and pile body in foundation pit, institute
Stating the first heat-conducting fluid can make the back soil side of the pile body 2 generate expansion, generate temperature stress, to resist in the foundation pit 1
Pile body 2 in digging process deforms；
Temperature due to the second heat-conducting fluid temperature lower than 2 surrounding formation of pile body 2 and pile body in foundation pit, described the
Two heat-conducting fluids can make the native side of meeting of pile body 2 generate contraction, generate temperature stress, to resist in 1 digging process of foundation pit
In pile body 2 deform；
(5) after foundation pit 1 excavates, normal-temperature water is injected into the boiler 11 and the cold water storage cistern 12, and beat
Open the second import of the boiler 11, the second outlet of the boiler 11, the second import of the cold water storage cistern 12 and described
Switch in the second outlet of cold water storage cistern 12；
Summer, when the pipeline for heating and cooling gives 14 cooling supply of the building, in the boiler 11 and the cold water storage cistern 12
Normal-temperature water can be cooled down through first circulation circuit and second circulation circuit by the ground temperature in 2 surrounding formation of pile body 2 and pile body respectively,
And normal-temperature water after cooling flows into pipeline for heating and cooling and gives building 14 cooling supply；
Winter, when the pipeline for heating and cooling is to 14 heating of building, in the boiler 11 and the cold water storage cistern 12
Normal-temperature water can be heated through first circulation circuit and second circulation circuit by the ground temperature in 2 surrounding formation of pile body 2 and pile body respectively,
And the normal-temperature water after heating flows into pipeline for heating and cooling and gives building 14 heating.
It carries on the back native side U-shaped heat exchanger tube 3 and described to meet native side U-shaped heat exchanger tube 4 using the center of circle of pile body is symmetric points binding in reinforcing bar
On cage 5, the binding of thermal insulation board 6 is on two heat exchanger tubes 3,4 axis of symmetry, and described to meet native side U-shaped heat exchanger tube 4 positioned at native face is met, back is native
Side U-shaped heat exchanger tube 3, which is located at, carries on the back native face.
When using in the excavation of foundation pit stage: as shown in Fig. 2, carrying on the back native side (compression-side) U-shaped heat exchanger tube 3 leads to hot water, and hot water
Water temperature is higher than the temperature of pile body 2 and surrounding formation, during heat transfer, the back soil side of pile body 2 can be made to generate expansion, produced
Raw temperature stress resists the pile body deformation that excavation of foundation pit generates.
Meeting for pile body is led into cold water in native side (tension side) U heat exchange 4, and cold water water temperature is lower than the pile body 2 and week
The temperature of exclosure layer can make the native side of meeting of pile body 2 generate contraction, generate temperature stress, resist during heat transfer
The pile body deformation that excavation of foundation pit generates.
The thermal insulation board 6 being arranged among pile body prevents back soil side U-shaped heat exchanger tube 3 and described meets native side U-shaped heat exchanger tube
4 generate radial heat exchange inside pile body.
After the completion of foundation pit 1 is constructed, normal-temperature water is all made of in boiler and cold water storage cistern, water flows through underground constant temperature through heat exchange tube
Layer, water temperature change, to reach to the function of building 14 cooling supply and heat supply.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Range is not construed as being only limitted to the concrete form of embodiment statement, and protection scope of the present invention is also and in those skilled in the art
Member according to the present invention design it is conceivable that equivalent technologies mean.
Claims (5)
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| JP2015014171A (en) * | 2013-07-08 | 2015-01-22 | 東京瓦斯株式会社 | Steel sheet pile with underground heat exchange function, underground heat exchange piping system, and installation method for underground heat exchange piping |
| CN105040679A (en) * | 2015-08-12 | 2015-11-11 | 河海大学 | Heat transfer pipe embedded in prefabricated pipe piles and embedding method of heat transfer pipe |
| CN206800383U (en) * | 2017-06-14 | 2017-12-26 | 威海中恒管桩有限公司 | A kind of geothermal energy pile tube |
| CN209555935U (en) * | 2018-09-28 | 2019-10-29 | 浙江工业大学 | A cast-in-place reinforced concrete horizontal enclosure energy pile |
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| JP2015014171A (en) * | 2013-07-08 | 2015-01-22 | 東京瓦斯株式会社 | Steel sheet pile with underground heat exchange function, underground heat exchange piping system, and installation method for underground heat exchange piping |
| CN104154618A (en) * | 2014-08-26 | 2014-11-19 | 珠海格力节能环保制冷技术研究中心有限公司 | Pipe-burying method for soil source heat pump system and soil source heat pump system |
| CN105040679A (en) * | 2015-08-12 | 2015-11-11 | 河海大学 | Heat transfer pipe embedded in prefabricated pipe piles and embedding method of heat transfer pipe |
| CN206800383U (en) * | 2017-06-14 | 2017-12-26 | 威海中恒管桩有限公司 | A kind of geothermal energy pile tube |
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