CN110512595A - The construction method of supporting tubular pole in a kind of ground temperature exchange system - Google Patents
The construction method of supporting tubular pole in a kind of ground temperature exchange system Download PDFInfo
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- CN110512595A CN110512595A CN201910780552.1A CN201910780552A CN110512595A CN 110512595 A CN110512595 A CN 110512595A CN 201910780552 A CN201910780552 A CN 201910780552A CN 110512595 A CN110512595 A CN 110512595A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/30—Prefabricated piles made of concrete or reinforced concrete or made of steel and concrete
-
- 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
- E02D5/58—Prestressed concrete piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T2010/50—Component parts, details or accessories
- F24T2010/53—Methods for installation
-
- 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)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Development (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of construction methods of supporting tubular pole in ground temperature exchange system, Step 1: carrying out preparation of construction；Step 2: long-spiral drilling machine and Static pressure pile driver enter scene；Step 3: long-spiral drilling machine is in place, moves to pilot hole at pre- piling position and take soil；Step 4: Static pressure pile driver is in place, piling machine, which moves to, to be completed at the pre- piling position of pilot hole；Step 5: configuring the good prestressed concrete pipe pile as supporting tubular pole according to designing pile length and model；Step 6: welding silent shape pile top in prestressed concrete pipe pile bottom, and certain thickness concrete is filled at stake end, it is ensured that complete back cover；Step 7: prestressed concrete pipe pile is squeezed into the soil body by design requirement；Step 8: detection pile quality；Step 10: binding crown beam reinforcing bar；Step 11: formwork pours crown beam.The present invention can guarantee the intensity of tubular pole, the structural behaviour of tubular pole convenient for control, stability is significantly better than pour made of tubular pole, and construction is simple can reduce cost.
Description
Technical field
The present invention relates to building supporting construction fields, and in particular to the construction party of supporting tubular pole in a kind of ground temperature exchange system
Method.
Background technique
Earth source heat pump is that the land shallow-layer energy is realized by inputting a small amount of high-grade energy (such as electric energy) by low-grade heat
It can be to the device of high-grade heat energy transfer.The energy of usual earth source heat pump consumption 1kWh, the available 4.4kWh's or more of user
Heat or cooling capacity.But it will still consume more electric energy to heat the land shallow-layer energy, energy consumption is high.
China Patent Publication No. is that CN 103669336A discloses a kind of geothermal air conditioner prefabricated pile, including prefabricated pile reinforcing bar
Skeleton, prefabricated pile framework of steel reinforcement are formed by main reinforcement and around the stirrup of main ribs, fill concrete in prefabricated pile framework of steel reinforcement
After form prefabricated pile, for heat exchange high strength pipe be wrapped in prefabricated pile framework of steel reinforcement, the both ends of the prefabricated pile
It is connected with the end plate including end plate and skirtboard, the high strength pipe for heat exchange is provided with counterbore and bolt on end plate
Hole, while being also provided with the inlet and outlet of the high strength pipe for heat exchange.This kind of geothermal air conditioner prefabricated pile, makes full use of
The renewable energy of the underground space and nature, can be in the case where being not take up large amount of land resources, will be in prefabricated pile basis
Increase heat function of exchange, has both the double dominant of economy and environment.
But the medium contact range for carrying out heat exchange in the prior art is limited, and heat exchange is insufficient, and exchange capability of heat is limited, supplies
Warm, poor refrigerating efficiency.Therefore occur now using tube pile structure and set the ground temperature exchange system of heat-exchange medium, ground in stake in-core
Warm exchange system includes water inlet manifold, outfall sewer, heat-dissipating pipe and fan, the water inlet end of water inlet manifold and going out for outfall sewer
Water end (W.E.) is connected separately with water inlet pipe and exit branch and the two is respectively positioned on the inside of tubular pole, heat-dissipating pipe be connected to water inlet manifold and
Between outfall sewer and circulation is formed, the heat-dissipating pipe uses snakelike arrangement, the wind is equipped between adjacent heat-dissipating pipe
Fan.The heat-dissipating pipe and fan are mounted on the furred ceiling in house, are also connected with circulating pump on the water inlet manifold.But existing heat
The tubular pole for the storage heat exchange matchmaker that exchange system uses mostly uses the mode of pouring to construct pile, can not but pour pipe pile bottom sediment
The stability of the outstanding problem cleaned out, bearing capacity and construction quality is affected, and tubular pole pours and needs to use
Specific device pile, and be difficult to that steel reinforcement cage is arranged, further affect pile intensity.
Summary of the invention
The purpose of the present invention is to provide a kind of construction methods of supporting tubular pole in ground temperature exchange system, to solve existing skill
The tubular pole that heat exchange medium is stored in art will cause the problem of pile intensity deficiency and stability difference using mode pile is poured.
The construction method of supporting tubular pole in the ground temperature exchange system, including the following steps:
Step 1: carrying out preparation of construction；
Step 2: long-spiral drilling machine and Static pressure pile driver enter scene, according to designing pile length, equipment assembling is carried out；
Step 3: long-spiral drilling machine is in place, moves to pilot hole at pre- piling position and take soil；
Step 4: Static pressure pile driver is in place, piling machine, which moves to, to be completed at the pre- piling position of pilot hole；
Step 5: configuring the good prestressed concrete pipe pile as supporting tubular pole according to designing pile length and model；
Step 6: welding silent shape pile top in prestressed concrete pipe pile bottom, and certain thickness mix is filled at stake end
Solidifying soil, it is ensured that complete back cover；
Step 7: prestressed concrete pipe pile is squeezed into the soil body by design requirement；
Step 8: detection pile quality, is tested by small strain and checks pile body integrity；
Step 9: pre-buried PE feed pipe, fills water in stake in-core, and be inserted into the water inlet pipe and exit branch of PE material,
Water inlet pipe and exit branch are connected with water inlet manifold and outfall sewer respectively in crown beam；
Step 10: binding crown beam reinforcing bar, by design requirement in tubular pole end plate welded reinforcement, and connect with crown beam reinforcing bar
It is good；
Step 11: formwork pours crown beam, pre-buried pipeline is fixed before crown beam construction, and carry out pipeline pressure test,
Ensure that pipeline effectively connects.
Preferably, the step 7 specifically includes:
1), pitching pile: slinging prefabricated tubular pile, and tubular pole one end is mounted in the plant pile holder tool of Static pressure pile driver, is planting pile holder tool
It is middle that stake is inserted into tubular pole righting in pilot hole after the depth of 1m-1.5m to, it is measured with two theodolites from perpendicular both direction
The verticality of tubular pole, and position and verticality adjustment are carried out until meeting the requirements to tubular pole in pile holder tool is planted；
2), piling: start to carry out static pressure piling, piling speed control is 2.0m-3.0m/min, and the every decline of tubular pole
0.5m-1m just detects the verticality of tubular pole, and adjusts the verticality of tubular pole, enables perpendicularity deviation be less than or equal to stake long
0.5%, tubular pole is disposably pressed by set depth with the piling speed of 1m/min after depth is more than 3m；
3), pile: pressure stabilizing is kept for static pressure pressure 10-15 minutes after tubular pole is pressed into set depth, then release.
Preferably, the tubular pole is formed by connecting by more piece tubular pole section, and undermost tubular pole section is bottom pile cutoff, the piling
Cheng Zhongxian to bottom pile cutoff to being pressed onto set depth, the end of the tubular pole section lower end of the end plate of bottom pile cutoff upper end and a upper section
Plate is weldingly connected, and to weld brush anti-decaying paint, then repeats the piling process of bottom pile cutoff above-mentioned, recycle above-mentioned tubular pole Duan Lian
It connects and is sequentially connected with each section tubular pole section with piling process, until bottom pile cutoff is depressed into bearing course.
Preferably, the rusty stain and sludge on end plate are first brushed when each tubular pole section is welded, passes through the saddle tune of Static pressure pile driver
Two tubular pole sections are aligned, are then welded by the position of homogeneous tube pile cutoff and verticality, and the welding number of plies is no less than two layers.
Preferably, the pipe pile in-core is equipped with the seal pipe that fits closely with tubular pole inner wall, pre- in the step 9
Seal pipe is first pressed into corresponding pipe pile in-core before burying PE feed pipe.
Preferably, it is 50~100mm that the diameter of the pilot hole, which is less than tubular pole outer diameter and the two difference, and the pilot hole depth is
The tubular pole overall length half.
The present invention has the advantage that
1, using prestressed concrete pipe pile as supporting tubular pole, the bearing capacity of folk prescription concrete is very big, can guarantee tubular pole
Intensity, the structural behaviour of tubular pole convenient for control, stability is significantly better than pour made of tubular pole, and construction is simple can drop
Low cost.
2, static pressure construction is carried out using step 7 mode, good by pilot hole pile-forming effect, pilot hole reduces the volume of soil compaction,
Soil compaction negative effect is reduced, the destruction to supporting construction is avoided.Furthermore the resistance for reducing static pressure is conveniently adjusted tubular pole guarantor
Card position and verticality meet the requirements.
3, it is welded to connect using more piece tubular pole section, tubular pole segment length of tubular pole when prefabricated can be reduced, manufacture is facilitated to safeguard,
It is also convenient for transporting.
4, said welding method can guarantee welding after tubular pole position and verticality meet the requirements, moreover it is possible to avoid end plate by
To corrosion, prolong the service life.
5, the tubular pole that seal pipe can guarantee more piece connection prevents heat exchange medium from letting out the storage effect of heat exchange medium
Dew.
Specific embodiment
Below by the description to embodiment, the specific embodiment of the invention is described in further detail, to help
Those skilled in the art has more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
The major diameter prestressed concrete water supply pipe stake applies in pattern foundation pit supporting structure, reduces concrete amount, improves support pile
Bending resistance；Hollow tubular structures are designed into simultaneously, using underground shallow layer ground temperature can (temperature be normal at 10~20m of subsurface
Year stablizes, generally local average annual temperature), the temperature exchange for using water to be recycled as carrier, thus to similar convention
" the large spaces such as room, multi-functional Conference Hall, multi-media classroom, music hall, cinema, conference and exhibition center, museum, indoor sport shop
The space of building function subregion " is heated, is freezed.
Ground temperature exchange system uses water as heat exchange medium more, and is stored using supporting tubular pole and carry out heat exchange, this reality
It applies in example using prestressed concrete pipe pile as supporting tubular pole, the bearing capacity of folk prescription concrete is very big, can guarantee the strong of tubular pole
Degree, the structural behaviour of tubular pole convenient for control, stability is significantly better than pour made of tubular pole, and construction is simple, can reduce at
This.
Embodiment 1:
The present invention provides a kind of construction methods of supporting tubular pole in ground temperature exchange system, including following step in the present embodiment
It is rapid:
Step 1: carrying out preparation of construction；
Step 2: long-spiral drilling machine and Static pressure pile driver enter scene, according to designing pile length, equipment assembling is carried out；
Step 3: long-spiral drilling machine is in place, moves to pilot hole at pre- piling position and take soil, the diameter of pilot hole be less than tubular pole outer diameter and
The two difference is 50~100mm, and the pilot hole depth is the tubular pole overall length half；
Step 4: Static pressure pile driver is in place, piling machine, which moves to, to be completed at the pre- piling position of pilot hole；
Step 5: configuring the good prestressed concrete pipe pile as supporting tubular pole according to designing pile length and model；
Step 6: welding silent shape pile top in prestressed concrete pipe pile bottom, and certain thickness mix is filled at stake end
Solidifying soil, it is ensured that complete back cover；
Step 7: prestressed concrete pipe pile is squeezed into the soil body by design requirement；
Step 8: detection pile quality, is tested by small strain and checks pile body integrity；
Step 9: pre-buried PE feed pipe, fills water in stake in-core, and be inserted into the water inlet pipe and exit branch of PE material,
Water inlet pipe and exit branch are connected with water inlet manifold and outfall sewer respectively in crown beam；
Step 10: binding crown beam reinforcing bar, by design requirement in tubular pole end plate welded reinforcement, and connect with crown beam reinforcing bar
It is good；
Step 11: formwork pours crown beam, pre-buried pipeline is fixed before crown beam construction, and carry out pipeline pressure test,
Ensure that pipeline effectively connects.If poured using clay model, native face should repair leveling.
Wherein preparation of construction includes:
(1) mechanical to prepare.
It must be equipped with reliable performance, comply with standard, the construction machinery of A wide selection of colours and designs and equipment, carry out machinery before construction and set
Standby maintenance, test-run a machine work, it is ensured that all go well operation in construction period.
(2) material prepares.
Prepare PE feed pipe, coating steel pipe and reinforcing bar, the coagulation of prestressed concrete pipe pile, different model as required
The materials such as soil, template.
(3) Farm Planning.
The building waste of earth's surface is removed, house refuse, weeds, tree root, ploughs and plants soil etc., smooth location to designed elevation, root
According to the requirement of design document and construction organization plan, the sequence of construction of reasonable is determined.
The step 7 specifically includes:
1), pitching pile: slinging prefabricated tubular pile, and tubular pole one end is mounted in the plant pile holder tool of Static pressure pile driver, is planting pile holder tool
It is middle that stake is inserted into tubular pole righting in pilot hole after the depth of 1m-1.5m to, it is measured with two theodolites from perpendicular both direction
The verticality of tubular pole, and position and verticality adjustment are carried out until meeting the requirements to tubular pole in pile holder tool is planted.
2), piling: start to carry out static pressure piling, piling speed control is 2.0m-3.0m/min, and the every decline of tubular pole
0.5m-1m just detects the verticality of tubular pole, and adjusts the verticality of tubular pole, enables perpendicularity deviation be less than or equal to stake long
0.5%, tubular pole is disposably pressed by set depth with the piling speed of 1m/min after depth is more than 3m.
3), pile: pressure stabilizing is kept for static pressure pressure 10-15 minutes after tubular pole is pressed into set depth, then release.
Step 7 carries out static pressure construction, and good by pilot hole pile-forming effect, pilot hole reduces the volume of soil compaction, reduces soil compaction
Negative effect avoids the destruction to supporting construction.Furthermore the resistance for reducing static pressure is conveniently adjusted tubular pole and guarantees position and hang down
Straight degree meets the requirements.
The heat exchanges such as water inlet manifold, outfall sewer, the heat-dissipating pipe in furred ceiling and fan are laid again after the completion of tube pile construction to set
It is standby, filter and water pump at the head of water inlet manifold setting one.
Embodiment 2:
The present invention provides a kind of construction method of supporting tubular pole in ground temperature exchange system in the present embodiment, wherein tubular pole by
More piece tubular pole section is formed by connecting, and undermost tubular pole section is bottom pile cutoff.The pipe pile in-core is equipped with and closely pastes with tubular pole inner wall
The seal pipe of conjunction.The construction method includes the following steps:
Step 1: carrying out preparation of construction；
Step 2: long-spiral drilling machine and Static pressure pile driver enter scene, according to designing pile length, equipment assembling is carried out；
Step 3: long-spiral drilling machine is in place, moves to pilot hole at pre- piling position and take soil；
Step 4: Static pressure pile driver is in place, piling machine, which moves to, to be completed at the pre- piling position of pilot hole；
Step 5: configuring the good prestressed concrete pipe pile as supporting tubular pole according to designing pile length and model；
Step 6: welding silent shape pile top in prestressed concrete pipe pile bottom, and certain thickness mix is filled at stake end
Solidifying soil, it is ensured that complete back cover；
Step 7: prestressed concrete pipe pile is squeezed into the soil body by design requirement；
Step 8: detection pile quality, is tested by small strain and checks pile body integrity；
Step 9: seal pipe is first pressed into corresponding pipe pile in-core, in pre-buried PE feed pipe, filled in stake in-core
Water, and be inserted into the water inlet pipe and exit branch of PE material, water inlet pipe and exit branch in crown beam respectively with water inlet manifold
It is connected with outfall sewer；
Step 10: binding crown beam reinforcing bar, by design requirement in tubular pole end plate welded reinforcement, and connect with crown beam reinforcing bar
It is good；
Step 11: formwork pours crown beam, pre-buried pipeline is fixed before crown beam construction, and carry out pipeline pressure test,
Ensure that pipeline effectively connects.Seal pipe can guarantee storage effect of the tubular pole to heat exchange medium of more piece connection in step 9, prevent
Only heat exchange medium is revealed.
The step 7 specifically includes:
1), pitching pile: slinging prefabricated tubular pile, and tubular pole one end is mounted in the plant pile holder tool of Static pressure pile driver, is planting pile holder tool
It is middle that stake is inserted into tubular pole righting in pilot hole after the depth of 1m-1.5m to, it is measured with two theodolites from perpendicular both direction
The verticality of tubular pole, and position and verticality adjustment are carried out until meeting the requirements to tubular pole in pile holder tool is planted.
2), piling: start to carry out static pressure piling, piling speed control is 2.0m-3.0m/min, and the every decline of tubular pole
0.5m-1m just detects the verticality of tubular pole, and adjusts the verticality of tubular pole, enables perpendicularity deviation be less than or equal to stake long
0.5%, tubular pole is disposably pressed by set depth with the piling speed of 1m/min after depth is more than 3m.
First to bottom pile cutoff to being pressed onto set depth, the end plate of bottom pile cutoff upper end and a upper section during the piling
The end plate of tubular pole section lower end be weldingly connected.Each tubular pole section first brushes rusty stain and sludge on end plate when welding, by quiet
The position of the saddle adjustment tubular pole section of pile press machine and verticality, two tubular pole sections are aligned, are then welded, the welding number of plies is not
Less than two layers, to weld brush anti-decaying paint after welding, the piling process of bottom pile cutoff above-mentioned is then repeated, recycles above-mentioned tubular pole section
Connection and piling process are sequentially connected with each section tubular pole section, until bottom pile cutoff is depressed into bearing course.
3), pile: pressure stabilizing is kept for static pressure pressure 10-15 minutes after tubular pole is pressed into set depth, then release.
Tubular pole is welded to connect using more piece tubular pole section in the above method, can reduce tubular pole segment length of tubular pole when prefabricated,
Facilitate manufacture to safeguard, is also convenient for transporting.And welding procedure can guarantee that the position of tubular pole and verticality meet the requirements after welding, moreover it is possible to
It avoids end plate from being corroded, prolongs the service life.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the improvement for the various unsubstantialities that inventive concept of the invention and technical solution carry out, or not improved this is sent out
Bright conception and technical scheme directly apply to other occasions, within that scope of the present invention.
Claims (6)
1. the construction method of supporting tubular pole in a kind of ground temperature exchange system, it is characterised in that: include the following steps:
Step 1: carrying out preparation of construction；
Step 2: long-spiral drilling machine and Static pressure pile driver enter scene, according to designing pile length, equipment assembling is carried out；
Step 3: long-spiral drilling machine is in place, moves to pilot hole at pre- piling position and take soil；
Step 4: Static pressure pile driver is in place, piling machine, which moves to, to be completed at the pre- piling position of pilot hole；
Step 5: configuring the good prestressed concrete pipe pile as supporting tubular pole according to designing pile length and model；
Step 6: welding silent shape pile top in prestressed concrete pipe pile bottom, and certain thickness concrete is filled at stake end,
Ensure complete back cover；
Step 7: prestressed concrete pipe pile is squeezed into the soil body by design requirement；
Step 8: detection pile quality, is tested by small strain and checks pile body integrity；
Step 9: pre-buried PE feed pipe, fills water in stake in-core, and be inserted into the water inlet pipe and exit branch of PE material, water inlet
Branch pipe and exit branch are connected with water inlet manifold and outfall sewer respectively in crown beam；
Step 10: binding crown beam reinforcing bar, by design requirement in tubular pole end plate welded reinforcement, and connects with crown beam reinforcing bar；
Step 11: formwork pours crown beam, pre-buried pipeline is fixed before crown beam construction, and carry out pipeline pressure test, it is ensured that
Pipeline effectively connects.
2. the construction method of supporting tubular pole in a kind of ground temperature exchange system according to claim 1, it is characterised in that: described
Step 7 specifically includes:
1), pitching pile: slinging prefabricated tubular pile, and tubular pole one end is mounted in the plant pile holder tool of Static pressure pile driver, will in planting pile holder tool
Stake is inserted into pilot hole after the depth of 1m-1.5m by tubular pole righting, measures tubular pole from perpendicular both direction with two theodolites
Verticality, and carry out position and verticality adjustment until meet the requirements to tubular pole in pile holder tool is planted；
2), piling: start to carry out static pressure piling, piling speed control is 2.0m-3.0m/min, and the every decline 0.5m- of tubular pole
1m just detects the verticality of tubular pole, and adjusts the verticality of tubular pole, enables perpendicularity deviation be less than or equal to stake long
0.5%, tubular pole is disposably pressed by set depth with the piling speed of 1m/min after depth is more than 3m；
3), pile: pressure stabilizing is kept for static pressure pressure 10-15 minutes after tubular pole is pressed into set depth, then release.
3. the construction method of supporting tubular pole in a kind of ground temperature exchange system according to claim 2, it is characterised in that: described
Tubular pole is formed by connecting by more piece tubular pole section, and undermost tubular pole section is bottom pile cutoff, first to bottom pile cutoff to pressure during the piling
To set depth, the end plate of bottom pile cutoff upper end and the end plate of the tubular pole section lower end of a upper section are weldingly connected, and butt welding
Place's brush anti-decaying paint is connect, the piling process of bottom pile cutoff above-mentioned is then repeated, recycles above-mentioned tubular pole section connection and piling process sequentially
Each section tubular pole section is connected, until bottom pile cutoff is depressed into bearing course.
4. the construction method of supporting tubular pole in a kind of ground temperature exchange system according to claim 3, it is characterised in that: each pipe
Pile cutoff first brushes rusty stain and sludge on end plate when welding, adjust the position of tubular pole section and vertical by the saddle of Static pressure pile driver
Two tubular pole sections are aligned, are then welded by degree, and the welding number of plies is no less than two layers.
5. the construction method of supporting tubular pole in a kind of ground temperature exchange system according to claim 3 or 4, it is characterised in that:
The pipe pile in-core is equipped with the seal pipe fitted closely with tubular pole inner wall, first will before pre-buried PE feed pipe in the step 9
Seal pipe is pressed into corresponding pipe pile in-core.
6. the construction method of supporting tubular pole in a kind of ground temperature exchange system according to claim 1, it is characterised in that: described
It is 50~100mm that the diameter of pilot hole, which is less than tubular pole outer diameter and the two difference, the pilot hole depth be the tubular pole overall length two/
One.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780552.1A CN110512595A (en) | 2019-08-22 | 2019-08-22 | The construction method of supporting tubular pole in a kind of ground temperature exchange system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910780552.1A CN110512595A (en) | 2019-08-22 | 2019-08-22 | The construction method of supporting tubular pole in a kind of ground temperature exchange system |
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| US20140110082A1 (en) * | 2012-10-18 | 2014-04-24 | Paul W. Suver | Geoexchange systems including ground source heat exchangers and related methods |
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