CN108570982A - The quiet brill of one kind taking root in energy stake and its construction method - Google Patents
The quiet brill of one kind taking root in energy stake and its construction method Download PDFInfo
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- CN108570982A CN108570982A CN201810541176.6A CN201810541176A CN108570982A CN 108570982 A CN108570982 A CN 108570982A CN 201810541176 A CN201810541176 A CN 201810541176A CN 108570982 A CN108570982 A CN 108570982A
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- 241001074085 Scophthalmus aquosus Species 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000011083 cement mortar Substances 0.000 claims abstract description 28
- 238000005553 drilling Methods 0.000 claims description 38
- 238000000034 method Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 239000002689 soil Substances 0.000 claims description 7
- 238000007569 slipcasting Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
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- 241001330002 Bambuseae Species 0.000 claims 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 2
- 239000011425 bamboo Substances 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 230000035515 penetration Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002513 implantation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000001174 ascending effect 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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
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Classifications
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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
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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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of quiet brills to take root in energy stake, including lower part ring prefabricated pile, middle part cylinder prefabricated pile, Upper cylindrical prefabricated pile, stake bottom water mud, stake week cement mortar, heat exchanger tube and drogue；Lower part ring prefabricated pile is made of ring and pile body, and lower part heat exchanger tube, which takes the shape of the letter U, to be arranged in pile body, and the Inlet and outlet water position of lower part heat exchanger tube is infundibulate female connector；Middle part cylinder prefabricated pile is weldingly connected with lower part ring prefabricated pile, and middle part heat exchanger tube is arranged in II shape in pile body, and middle part exchanges heat bottom of the tube Inlet and outlet water position as infundibulate pin end, and infundibulate pin end is connected with the cooperation of the infundibulate female connector of lower part ring prefabricated pile.The beneficial effects of the invention are as follows：The quiet brill of the present invention takes root in energy stake and is spliced by prefabricated pile of multi-segments, inner-heating tube, solves the problems, such as laying of the underground heat heat exchanger tube in spliced prefabricated tubular pile and quickly splices, and realizes effective combination that ground-source heat pump system takes root in stake with quiet brill.
Description
Technical field
The present invention relates to a kind of quiet brills to take root in stake, and in particular to the quiet brill of one kind taking root in energy stake and its construction method, belongs to
Pile foundation and technical field of ground source heat pump.
Background technology
In the 1990s, earth source heat pump promotes and applies in China, although earth source heat pump has, stability is good, energy saving height
Effect, the advantages that service life is long, but there is also initial investments higher, a large amount of occupancy underground spaces and system complex, installation are difficult
Big etc. deficiency is spent, to constrain the popularization and application of its large area.Domestic and foreign scholars and engineer are constantly tasting always
Try the new process and new method of geothermal energy utilization.In recent years, on the basis of traditional ground source heat pump technology, developed and pile foundation work
New energy-saving building technology --- " heat exchange stake technology ", also referred to as " energy pile ", " energy stake ", skill of journey structure collaboration construction
Art is mainly implanted into underground heat-exchanging pipe road system in pile foundation, and closed-loop ground source heat pump has been combined with building pile foundation
Come, that is, form heat exchange stake system, shallow layer ground-temperature energy is obtained from stratum.Heat-exchange tube is closely tied with pile foundation in energy pile
It closes, ensure that stability, the durability of heat-exchange system, more commonly descend pipe laying ground-source heat pump system low cost.To solve
Ground source heat pump technology promotes occupation of land and two major obstacles of high cost, while reduction heat pump compressor being contributed to add hot and cold
But hot liveness when building.
Application No. is the 200810159583.7 patent " biographies of the geothermal heat exchanger of pile imbedded helix tube type ground source heat pump system
Hot method " discloses one kind and binding embedded helix tube type heat-transfer pipe, ground source heat on the borehole filling pile cage of reinforcement of building basis
Pump heat-transfer pipe is embedded to set the technical solution being carried out at the same time with building pile basis.Application No. is 201310441978.7 patents
A kind of " construction method of precast energy pile " public affairs develop a kind of construction method of precast energy pile, it is characterised in that：Heat-transfer pipe
It is embedded in hollow steel pipe, hollow steel pipe substitutes traditional solid reinforcing bar as prefabricated pile main reinforcement；In order to connect the biography in prefabricated pile
Heat pipe, pre-buried heat transfer bend pipe and heat transfer pipe fitting in prefabricated shoe and prefabricated pile cover.Application No. is 201310459205.1
Patent " energy pile and its system " discloses a kind of energy pile comprising a pile body and one be set to the pile body inside
Heat exchanger tube, the pile body are set to underground, and the pile body is the complex being made of cement, flyash and rubble, the heat exchange
Pipe forms a thermal conducting path inside the pile body.
Existing prefabricated energy pile is because static pressure or hammer piling process easily lead to pile body and destroy, so as to influence heat-exchange tube
Integrity, and drill-pouring energy pile is because cast-in-situ bored pile cost height, unstable quality, single pile construction time are long, and mud
Exhaust emission environment does not meet the idea of development of low-carbon environment-friendly, it is difficult to be widely applied.It is to pass through to take root in stake due to quiet brill
Drilling, base expanding and base expanding, slip casting and a kind of pile foundation for planting the formation of the series of processes such as stake have mud emission amount few, and work progress is non-to be squeezed
The advantages that soil, effect on environment is small, at present there is no ground-source heat pump systems to take root in the energy stake that stake is combined with quiet brill, is taken root in quiet brill
Stake embedded set heat exchanger tube promotes the use of environmental-friendly ground-source heat pump system for soft clay area and is of great significance.
Invention content
The purpose of the present invention is overcoming deficiency in the prior art, the quiet brill of one kind is provided and takes root in energy stake and its construction party
Method.
This quiet brill takes root in energy stake, including lower part ring prefabricated pile, middle part cylinder prefabricated pile, Upper cylindrical prefabricated pile,
Stake bottom water mud, stake week cement mortar, heat exchanger tube and drogue；Lower part ring prefabricated pile is made of ring and pile body, lower part
Heat exchanger tube, which takes the shape of the letter U, to be arranged in pile body, and the Inlet and outlet water position of lower part heat exchanger tube is infundibulate female connector；Middle part cylinder prefabricated pile with
Lower part ring prefabricated pile is weldingly connected, and middle part heat exchanger tube is arranged in II shape in pile body, middle part heat exchange bottom of the tube Inlet and outlet water position
For infundibulate pin end, infundibulate pin end is connected with the cooperation of the infundibulate female connector of lower part ring prefabricated pile, middle part heat exchanger tube
Top Inlet and outlet water position is infundibulate female connector；Upper cylindrical prefabricated pile is weldingly connected with middle part cylinder prefabricated pile, top heat exchange
Pipe is arranged in II shape in pile body, and top exchanges heat bottom of the tube Inlet and outlet water position as infundibulate pin end, and infundibulate pin end is in
The infundibulate female connector cooperation of portion's cylinder prefabricated pile is connected, and intake-outlet is connected with ground-source heat pump system at the top of the heat exchanger tube of top；
Stake bottom water mud is distributed in lower part ring prefabricated pile bottom；The all cement mortars of stake are distributed in prefabricated pile week, and stake bottom water mud with
On, outer diameter is less than stake bottom water mud.
As preferred：Ring forms concave-convex alternate concrete profiled prefabricated pile with pile body.
As preferred：The infundibulate pin end of middle part heat exchange bottom of the tube stretches out end face 5cm~10cm；Top heat exchange bottom of the tube
Infundibulate pin end stretch out end face 5cm~10cm.
As preferred：Infundibulate female connector constitutes drogue with infundibulate pin end, is set on the inside of infundibulate female connector
It is fluted, rubber water-proof item is posted in groove.
As preferred：Stake bottom water mud and stake week cement mortar are circle ring column structure.
As preferred：The pile body of prefabricated pile is by steel bar stress, stirrup and coagulation local soil type at, steel bar stress circumferentially uniform cloth
It sets, stirrup screw arrangement, stirrup is welded on the outside of steel bar stress, and heat exchanger tube is weldingly connected with stirrup.
This quiet brill takes root in the construction method of energy stake, includes the following steps：
Step 1: drilling：Stake holes is obtained with drill hole of drilling machine in stake position first, the diameter of stake holes is prefabricated more than lower part ring
Stake, middle part cylinder prefabricated pile and Upper cylindrical prefabricated pile diameter；
Step 2: base expanding and base expanding：The drilling rod for opening drilling machine expands head section to the progress reaming of stake holes lower part, obtains base expanding and base expanding part；
Step 3: slip casting：It packs up drilling rod and expands head section, and lowering drill pipes are to stake holes bottom；Stake bottom water is injected to base expanding and base expanding part
Mud, and the mud of base expanding and base expanding part is replaced, the volume ratio of displacement is 50%~100%；To stake holes in the hole in addition to base expanding and base expanding part
Stake week cement mortar is injected, and replaces mud, the volume ratio of displacement is 20%~60%；In mud replacement process, when carrying drilling rod
Inject cement mortar；
Step 4: planting stake：Lower part ring prefabricated pile is sunk down into stake holes, and it is temporarily fixed；Sling middle part cylinder
The infundibulate pin end of middle part cylinder prefabricated pile is aligned compression by prefabricated pile with the infundibulate female connector of lower part ring prefabricated pile
Afterwards, it is weldingly connected along stake Zhou Jinhang；Continue in the cylinder prefabricated pile to stake holes of sinking middle part, and it is temporarily fixed, slings top
The infundibulate pin end of Upper cylindrical prefabricated pile is aligned pressure by cylinder prefabricated pile with the infundibulate female connector of middle part cylinder prefabricated pile
It is next, it is weldingly connected along stake Zhou Jinhang；In sinking Upper cylindrical prefabricated pile to stake holes；
Step 5: maintenance：Prefabricated pile is stood, natural curing.
As preferred：In the step 4, middle part cylinder driving pre-fabricated pile is set to more piece.
The beneficial effects of the invention are as follows：The quiet brill of the present invention takes root in energy stake and is spliced by prefabricated pile of multi-segments, interior displacement
Heat pipe, solves the problems, such as laying of the underground heat heat exchanger tube in spliced prefabricated tubular pile and quickly splices, and realizes earth source heat pump
System takes root in effective combination of stake with quiet brill.It is by drilling, base expanding and base expanding, slip casting and to plant the series of processes such as stake to take root in stake due to quiet brill
The advantages that a kind of pile foundation formed has mud emission amount few, the non-soil compaction of work progress, effect on environment is small.
Description of the drawings
Fig. 1 is that the quiet brill of the present invention takes root in energy stake schematic diagram；
Fig. 2 is the lower part ring prefabricated pile figure of the present invention；
Fig. 3 is the middle part cylinder prefabricated pile figure of the present invention；
Fig. 4 is the Upper cylindrical prefabricated pile figure of the present invention；
Fig. 5 is the drogue figure of the present invention；
Fig. 6 is the stake holes schematic diagram of the present invention；
Fig. 7 is base expanding and base expanding schematic diagram of the present invention；
Fig. 8 is that the cement mortar of the present invention replaces mud schematic diagram；
Fig. 9 is the plant stake schematic diagram of the present invention；
Figure 10 is schematic diagram after the pile of the present invention.
Reference sign：Lower part ring prefabricated pile 1, ring 11, middle part cylinder prefabricated pile 2, Upper cylindrical prefabricated pile 3,
Stake bottom water mud 4, stake week cement mortar 5, heat exchanger tube 6, lower part heat exchanger tube 61, middle part heat exchanger tube 62, top heat exchanger tube 63, infundibulate
Connector 7, infundibulate female connector 71, infundibulate pin end 72, rubber water-proof item 8, drilling machine 9, drilling machine expand head section 91, stake holes 10, expand
Bottom point 101.
Specific implementation mode
The present invention is described further with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection domain of the claims in the present invention
It is interior.
As shown in Figure 1, the quiet brill takes root in energy stake, including：Lower part ring prefabricated pile 1, middle part cylinder prefabricated pile 2,
Upper cylindrical prefabricated pile 3, stake bottom water mud 4, stake week cement mortar 5, heat exchanger tube 6 and drogue 7.
As shown in Fig. 2, lower part ring prefabricated pile 1 is placed in foundation soil, lower part ring prefabricated pile 1 is by ring 11 and pile body
It constitutes, ring 11 forms concave-convex alternate concrete profiled prefabricated pile with pile body, and lower part heat exchanger tube 61, which takes the shape of the letter U, is arranged in pile body
Interior, the water-in and water-out position of lower part heat exchanger tube 61 is infundibulate female connector 71.
As shown in figure 3, middle part cylinder prefabricated pile 2 is weldingly connected with lower part ring prefabricated pile 1；Middle part heat exchanger tube 62 is in II shape
It is arranged in pile body, heat exchanger tube 62 bottom in middle part goes out, the position that intakes is infundibulate pin end 72, stretches out end face 5cm~10cm, leakage
Bucket shape pin end 72 is connected with 71 plug-in type of infundibulate female connector of lower part ring prefabricated pile 1；The top of middle part heat exchanger tube 62 into and out of
Water level is set to infundibulate female connector 71.
As shown in figure 4, Upper cylindrical prefabricated pile 3 is weldingly connected with middle part cylinder prefabricated pile 2；Top heat exchanger tube 63 is in II shape
It is arranged in pile body, heat exchanger tube 63 bottom in top goes out, the position that intakes is infundibulate pin end 72, stretches out end face 5cm~10cm, leakage
Bucket shape pin end 72 is connected with 71 plug-in type of infundibulate female connector of middle part cylinder prefabricated pile 2；The top of top heat exchanger tube 63 into and out of
The mouth of a river is connected with ground-source heat pump system.
As shown in figure 5, drogue 7 is made of infundibulate female connector 71 and infundibulate pin end 72；Infundibulate mother connects
First 71 inside is equipped with groove, and rubber water-proof item 8 is posted in groove；Infundibulate female connector 71 and 72 plug-in type phase of infundibulate pin end
Even.
As shown in Figures 9 and 10, stake bottom water mud 4 is circle ring column, is distributed in 1 bottom of lower part ring prefabricated pile；The all cement of stake
Slurry 5 is circle ring column, is distributed in prefabricated pile week, and in 4 or more stake bottom water mud, outer diameter is less than stake bottom water mud 4.
The pile body of prefabricated pile is formed by steel bar stress, stirrup and concreting, and steel bar stress is circumferentially evenly arranged, hoop
Muscle screw arrangement is welded on the outside of steel bar stress；Heat exchanger tube 6 is weldingly connected with stirrup.
The quiet brill takes root in the construction method of energy stake, includes the following steps：
Step 1: drilling：As shown in fig. 6, obtaining stake holes 10 in the drilling of stake position drilling machine 9 first, the diameter of stake holes 10 is big
In lower part ring prefabricated pile 1, the diameter of middle part cylinder prefabricated pile 2 and Upper cylindrical prefabricated pile 3.
1. moving stake machine reaches job position, and adjusts pile frame verticality and reach within 1%, after stake machine is in place again to stake position
Secondary to carry out positioning review, pile position deviation value should be less than 20mm；
2. drill bit is positioned at a heart position, plan-position and drilling rod verticality are confirmed.Confirmed using detection and localization ruler flat
Face position using the mutual progress verticality monitoring in 90 ° of two theodolites and corrects, and verticality precision is 1%, horizontal displacement deviation
No more than 20mm.
3. in boring procedure, being sprayed water or bentonite mixed liquor in drilling according to geological condition, using with Special agitating
The drilling rod of the wing carries out finishing and retaining wall in drilling to hole body.Water consumption is adjusted according to aperture, penetration rate and geological condition.
4. drilling to set depth, the finishing that drilling rod carries out stake holes 10 is repeatedly lifted up and declined up and down.Stake holes 10 is modified
After the completion, the drill bit Extensive site wing is opened, reaming is carried out according to the enlarged diameter score time of setting, injects stake end after the completion of reaming
Cement mortar is simultaneously stirred repeatedly.
Sinking or promotion 5. drilling rod remains a constant speed.Negative pressure should not be generated in hole when promotion causes the excessive of the periphery soil body to disturb
It is dynamic, it stirs number and mixing time should ensure that hole quality；It, can be according to actual conditions in work progress in the case of general geology
Subtle adjustment is carried out to penetration rate.
6. drill bit is got into after prescribed depth according to geological condition ascending, descending for several times under normal circumstances, ensure the smooth of hole body
And the uniformity of soil cement.Cement mortar dosage should be strictly controlled, is measured using flowmeter.
7. drill bit is drilled into supporting course near sites, penetration rate should be consistent as far as possible.According to managing device electric current
Load variations situation is simultaneously compared with geological mapping report block diagram, and confirmation reaches supporting course.The rate of penetration in supporting course
It needs suitably to slow down, ensures current capacity within the allowable range, and ensure sufficient water flow.
Step 2: base expanding and base expanding：As shown in fig. 7, the drilling rod for opening drilling machine 9 expands head section 91 carries out reaming to 10 lower part of stake holes, obtain
To base expanding and base expanding part 101.
1. being checked the base expanding and base expanding situation of drill bit, including bellout diameter size, operation and control shape before construction per pile
Condition, maintenance status can construct after confirming normally.
2. base expanding and base expanding operation is gradually completed for 3~5 times according to geological condition point, drilling machine electric current must assure that during each base expanding and base expanding
It in permissible range, notes abnormalities, is handled in time；After the completion of reaming, drill bit is lifted repeatedly up and down, ensure stake end cement mortar
It is uniform, heave amplitude be base expanding and base expanding part 101 height.
3. base expanding and base expanding size is chosen according to geological condition according to following table.
1 base expanding and base expanding size table of table
Step 3: slip casting：As shown in figure 8, packing up drilling rod expands head section 91, and lowering drill pipes are to 10 bottom of stake holes；To base expanding and base expanding
Stake bottom water mud 4 is injected in part 101, and replaces the mud of base expanding and base expanding part 101, and the volume ratio of displacement is 50%~100%.To stake
Stake week cement mortar 5 is injected in hole 10 in the hole in addition to base expanding and base expanding part 101, and replaces mud, and the volume ratio of displacement is 20%~60%.
In mud replacement process, while carrying drilling rod marginal not enters cement mortar.
1. stake bottom water mud injects
Injection stake bottom water mud 4 after the completion of base expanding and base expanding operation, 4 injection rate of stake bottom water mud are 101 volume of base expanding and base expanding part
100%.During slip casting, lifting drilling machine 9 injects base expanding and base expanding part 101 until stake bottom water mud 4 is whole repeatedly up and down.Stake bottom water
4 ratio of mud of mud is 0.55~0.70, injection rate 1m3The raw material usage of cement mortar is shown in Table 2.
2 end cement mortar raw material usages of table
| Ratio of mud w/c | Cement (kg) | Water (kg) | Injection rate m3 |
| 0.55~0.70 | 1000~1200 | 600~700 | 1 |
2. the cement mortar injection of stake week
Injection stake week cement mortar 5 after the completion of stake bottom water mud 4 injects, stake week 5 injection rate of cement mortar：(drilling volume-base expanding and base expanding
Partial volume) × 30%.To ensure the amount of being actually implanted into of stake week cement mortar 5, the unit interval is confirmed according to the speed for promoting drilling rod
Stock volume, often promoted unit length drilling rod confirm cement mortar injection rate, find deviation be modified in time.
Step 4: planting stake：As shown in figure 9, lower part ring prefabricated pile 1 is sunk down into stake holes 10, and it is temporarily fixed；
Middle part cylinder prefabricated pile 2 is sling, by the funnel of the infundibulate pin end 72 of middle part cylinder prefabricated pile 2 and lower part ring prefabricated pile 1
After the alignment of shape female connector 71 compresses, it is weldingly connected along stake Zhou Jinhang；Continue in sinking middle part cylinder prefabricated pile 2 to stake holes 10, and
It is temporarily fixed, Upper cylindrical prefabricated pile 3 is sling, by the infundibulate pin end 72 of Upper cylindrical prefabricated pile 3 and middle part cylinder
After the alignment of infundibulate female connector 71 of prefabricated pile 2 compresses, it is weldingly connected along stake Zhou Jinhang；Sinking Upper cylindrical prefabricated pile 3 is to stake
In hole 10；More piece can be arranged in middle part cylinder prefabricated pile 2 according to actual needs.
1. the specific purpose tool of spud pile is positioned over suitable position around stake holes before planting stake.
2. the implantation of stake should keep continuous with drilling, cement mortar injection, stake is planted after avoiding cement mortar injecting time long.It plants
During stake, it is necessary to be positioned to stake using detection ruler, in stake implantation process, be detected at any time, deviation is more than 30mm, it is necessary to
It is corrected.It is mutually 90 degree with two theodolites simultaneously to be detected stake, perpendicularity deviation must not exceed 1%.
3. when lower section stake top is apart from 1~2m of ground, stake is fixed with specific purpose tool, then lifts next section stake, then
6 top entery and delivery port connection of heat exchanger tube is carried out, is welded using CO2 gas shielded arc weldings between stake and stake.
4. with special pile follower tool by stake fixation, correction and pile follower.Pile follower process, is conducted oneself with dignity using pile body, what drilling machine 9 provided
Pressure rotates stake to designed elevation.
5. during planting stake, as pile sinking difficulty phenomenon occurs when stake top position is larger away from designed elevation difference, should take and change
Become the measures such as rotary speed, intensified pressure, such as still pile sinking is difficult, then should extract stake, redrilling, note at former stake position
Slurry then proceedes to plant pile driving construction.
Step 5: maintenance：As shown in Figure 10, prefabricated pile is stood, natural curing.
Claims (8)
1. a kind of quiet brill takes root in energy stake, which is characterized in that including lower part ring prefabricated pile (1), middle part cylinder prefabricated pile (2),
Upper cylindrical prefabricated pile (3), stake bottom water mud (4), stake week cement mortar (5), heat exchanger tube (6) and drogue (7)；Lower part bamboo
Section prefabricated pile (1) is made of ring (11) with pile body, and lower part heat exchanger tube (61), which takes the shape of the letter U, to be arranged in pile body, lower part heat exchanger tube
(61) Inlet and outlet water position is infundibulate female connector (71)；Middle part cylinder prefabricated pile (2) welds phase with lower part ring prefabricated pile (1)
Even, middle part heat exchanger tube (62) is arranged in II shape in pile body, and middle part heat exchanger tube (62) bottom Inlet and outlet water position is infundibulate public access
Head (72), infundibulate pin end (72) are connected with the cooperation of the infundibulate female connector (71) of lower part ring prefabricated pile (1), middle part heat exchange
It is infundibulate female connector (71) to manage Inlet and outlet water position at the top of (62)；Upper cylindrical prefabricated pile (3) is welded with middle part cylinder prefabricated pile (2)
Connect connected, top heat exchanger tube (63) is arranged in II shape in pile body, and top heat exchanger tube (63) bottom Inlet and outlet water position is infundibulate
Pin end (72), infundibulate pin end (72) are connected with the cooperation of the infundibulate female connector (71) of middle part cylinder prefabricated pile (2), top
Intake-outlet is connected with ground-source heat pump system at the top of heat exchanger tube (63)；Stake bottom water mud (4) is distributed in lower part ring prefabricated pile (1)
Bottom；The all cement mortars (5) of stake are distributed in prefabricated pile week, and more than stake bottom water mud (4), outer diameter is less than stake bottom water mud (4).
2. quiet brill according to claim 1 takes root in energy stake, which is characterized in that ring (11) forms concave-convex alternate with pile body
Concrete profiled prefabricated pile.
3. quiet brill according to claim 1 takes root in energy stake, which is characterized in that the infundibulate of middle part heat exchanger tube (62) bottom
Pin end (72) stretches out end face 5cm~10cm；Infundibulate pin end (72) the stretching end face 5cm of top heat exchanger tube (63) bottom~
10cm。
4. quiet brill according to claim 1 takes root in energy stake, which is characterized in that infundibulate female connector (71) is public with infundibulate
Connector (72) constitutes drogue (7), and groove is equipped on the inside of infundibulate female connector (71), rubber water-proof item is posted in groove
(8)。
5. quiet brill according to claim 1 takes root in energy stake, which is characterized in that stake bottom water mud (4) and stake week cement mortar
(5) it is circle ring column structure.
6. quiet brill according to claim 1 takes root in energy stake, which is characterized in that the pile body of prefabricated pile is by steel bar stress, hoop
Muscle and coagulation local soil type at, steel bar stress is circumferentially evenly arranged, and stirrup screw arrangement, stirrup is welded on the outside of steel bar stress,
Heat exchanger tube (6) is weldingly connected with stirrup.
7. a kind of quiet brill as described in claim 1 takes root in the construction method of energy stake, which is characterized in that include the following steps：
Step 1: drilling：Stake holes (10) is obtained in stake position drilling machine (9) drilling first, the diameter of stake holes (10) is more than lower part bamboo
Save the diameter of prefabricated pile (1), middle part cylinder prefabricated pile (2) and Upper cylindrical prefabricated pile (3)；
Step 2: base expanding and base expanding：The drilling rod for opening drilling machine (9) expands head section (91) to the progress reaming of stake holes (10) lower part, obtains base expanding and base expanding portion
Divide (101)；
Step 3: slip casting：It packs up drilling rod and expands head section (91), and lowering drill pipes are to stake holes (10) bottom；It is noted to base expanding and base expanding part (101)
Enter bottom water mud (4), and replace the mud of base expanding and base expanding part (101), the volume ratio of displacement is 50%~100%；To stake holes
(10) stake week cement mortar (5) to be injected in the hole in addition to base expanding and base expanding part (101), and replaces mud, the volume ratio of displacement is 20%~
60%；In mud replacement process, while carrying drilling rod marginal not enters cement mortar；
Step 4: planting stake：Lower part ring prefabricated pile (1) is sunk down into stake holes (10), and it is temporarily fixed；Sling middle part circle
Column prefabricated pile (2), by the infundibulate of the infundibulate pin end (72) and lower part ring prefabricated pile (1) of middle part cylinder prefabricated pile (2)
After female connector (71) alignment compresses, it is weldingly connected along stake Zhou Jinhang；Continue the middle part cylinder prefabricated pile (2) to stake holes (10) that sinks
In, and it is temporarily fixed, Upper cylindrical prefabricated pile (3) is sling, by the infundibulate pin end (72) of Upper cylindrical prefabricated pile (3)
After being aligned compression with the infundibulate female connector (71) of middle part cylinder prefabricated pile (2), it is weldingly connected along stake Zhou Jinhang；Justify on sinking top
In column prefabricated pile (3) to stake holes (10)；
Step 5: maintenance：Prefabricated pile is stood, natural curing.
8. quiet brill according to claim 7 takes root in the construction method of energy stake, which is characterized in that in the step 4, in
Portion's cylinder prefabricated pile (2) is set as more piece.
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| CN109458757A (en) * | 2018-10-09 | 2019-03-12 | 浙江大学宁波理工学院 | The quiet brill of one kind takes root in energy pile and its production method, construction method |
| CN111636422A (en) * | 2020-04-17 | 2020-09-08 | 鸿厦建设有限公司 | Prefabricated energy pile |
| CN111779018A (en) * | 2020-06-24 | 2020-10-16 | 中国电建集团福建省电力勘测设计院有限公司 | Mechanical construction method for embedded anchor rod composite foundation of power transmission line |
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