CN105507237B - A kind of ear of maize straw stake and construction method - Google Patents
A kind of ear of maize straw stake and construction method Download PDFInfo
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- CN105507237B CN105507237B CN201610013047.0A CN201610013047A CN105507237B CN 105507237 B CN105507237 B CN 105507237B CN 201610013047 A CN201610013047 A CN 201610013047A CN 105507237 B CN105507237 B CN 105507237B
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- 240000008042 Zea mays Species 0.000 title claims abstract description 80
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 80
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 title claims abstract description 78
- 235000009973 maize Nutrition 0.000 title claims abstract description 78
- 239000010902 straw Substances 0.000 title claims abstract description 77
- 238000010276 construction Methods 0.000 title claims abstract description 24
- 230000005484 gravity Effects 0.000 claims abstract description 31
- 239000002689 soil Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 10
- 230000008595 infiltration Effects 0.000 abstract description 19
- 238000001764 infiltration Methods 0.000 abstract description 19
- 239000004744 fabric Substances 0.000 abstract description 10
- 238000013461 design Methods 0.000 abstract description 9
- 239000004746 geotextile Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000007480 spreading Effects 0.000 description 7
- 238000003892 spreading Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000032258 transport Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
- E02D3/103—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains by installing wick drains or sand bags
-
- 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
- E02D5/52—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments
- E02D5/523—Piles composed of separable parts, e.g. telescopic tubes ; Piles composed of segments composed of segments
- E02D5/526—Connection means between pile segments
-
- 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
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
Landscapes
- 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)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a kind of stake of ear of maize straw and construction method, it includes the prefabricated smooth stake of ear of maize straw of armored concrete, the prefabricated ear of maize straw hole of armored concrete, and it designs permeable hole on the basis of the smooth stake of ear of maize straw on pile lining；The prefabricated ear of maize straw infiltration stake of armored concrete, it will reserve groove on the basis of the stake of ear of maize straw hole between the Kong Yukong on pile lining, the fabric threads then made using infiltration geotextile, which are twined, ties up；The stake of ear of maize straw is buckled, including Core Walls Structure, cantilever, bearing, gravity bob, described Core Walls Structure is provided with three compartments with 120 ° of angle of cut arrangements, a cantilever is fitted with each compartment, and three described cantilevers fix its position by a bearing, described gravity bob is hung vertically in the center of Core Walls Structure, and its top is extended to outside Core Walls Structure.
Description
Technical field
The present invention mainly a kind of stake of ear of maize straw and construction method, are related to prefabricated pile, pile foundation construction, discharging consolidation, soft
Base process field.
Background technology
At present, it is divided into friction pile and end-bearing pile by its Force principle in pile foundation, is divided into prefabricated pile by its form of construction work
And bored concrete pile, prefabricated pile directly carries out prefabricated in construction, according to design length, then transports to job site and uses sinking apparatus
Pile sinking is carried out, or is prefabricated into after regular length to live and is spliced：The mode of pile sinking-welding-pile sinking-welding ... is complete
Into pile foundation construction.
In the work progress of prefabricated pile, if prefabricated arrive design length, then it is long to have a stake, transportation
The problem of long stake stub transports uncoordinated or uncoordinated conevying efficiency, and transport and need to separate again after building-site
The inconvenience sealed up for safekeeping, if prefabricated pile is transported Site Welding, then field construction connect electricity, welding machine prepare, welder personnel it is accurate
Standby wait can produce the drawbacks of extra link causes many, complicated construction links, cost height, quality control is difficult again.
The content of the invention
The invention aims to overcome above-mentioned the deficiencies in the prior art to be set there is provided a kind of outward appearance of precast pile
Meter, structure design and construction technique, simplify construction link and flow, and this is protected by its special structure type and form of construction work
Demonstrate,prove the bearing capacity of stake and the treatment effect for the treatment of of soft foundation.
The technical solution adopted by the present invention is as follows：
A kind of prefabricated smooth stake of ear of maize straw of armored concrete, including a hollow pile body, described pile body head is provided with
One is raised in pile body end and along the cylindrical end tangs I that extends into pile body of axis direction of pile body inwall, the pile body
Afterbody is provided with the cylindrical end tangs II for sinking into cylindrical end portions and the radial direction extension along pile body inwall in one；Described cylindricality
Boss I, cylindrical end tangs II center are provided with the hole communicated with pile body.
A kind of prefabricated ear of maize straw hole stake of armored concrete, is provided with and phase inside pile body on the pile body wall of the smooth stake of ear of maize straw
Logical permeable hole, when stake is through aqueous argillic horizon or progress treatment of soft foundation, the soil that permeable hole will can be contacted with pile lining
Layer moisture collection is to inside tube wall, so as to clear up hydraulic pressure, clear up super space soil pressure, when shortening the stake of ear of maize straw and entering working condition
Between.
A kind of prefabricated ear of maize straw infiltration stake of armored concrete, it is adjacent saturating on pile lining on the basis of the stake of ear of maize straw hole
Connecting groove is reserved between water hole and permeable hole, the fabric threads that infiltration geotextile makes are inlaid with described groove,
The device is used for permeability especially small argillic horizon, and fabric threads, which are twined, to be tied on pile lining groove, it is to avoid by excessive in pile driving process
Soil pressure influence is broken, and fabric threads are contacted with argillic horizon, moisture in soil layer is absorbed and along fabric threads seepage flow, through pile lining hole stream
To inside tube wall, dissipated by evaporation or artificial extract.
Further, described ear of maize straw infiltration stake, its laying geotextile rope in the infiltration vertical groove of stake, in transverse direction
Using geotextile rope colligation in annular groove, the infiltration path formed after pile sinking between infiltration stake and soil layer passes through water
Geotextile rope and pile lining hole are discharged to intracavitary in stake.
A kind of stake of ear of maize straw buckle, including Core Walls Structure, cantilever, bearing, gravity bob, described Core Walls Structure be provided with three with
The compartment of 120 ° of angle of cut arrangements, is fitted with a cantilever in each compartment, and three described cantilevers are solid by a bearing
Its fixed position, described gravity bob is hung vertically in the center of Core Walls Structure, and its top is extended to outside Core Walls Structure；When ear of maize straw staking
Long value is more more complicated than larger or soil property environment when causing pile sinking environment complicated, and the straw stake of design ear of maize buckle, uses ear of maize straw
Button, pulling force rope, the ring flange of application pulling force fix the ear of maize straw of concatenation, improve the overall stability of ear of maize straw and in pile sinking
During external force effect under stability, so as to ensure pile sinking effect.Treat that concerned process steps are completed, can select to reclaim on stake button
Or continue to allow its work.
Further, described Core Walls Structure is the main body and framework that the stake of ear of maize straw is buckled, and other several parts are all mounted in core
On heart cylinder.The top of described Core Walls Structure is provided with the hole passed through for the nose of bolt loading tensile rope and for gravity bob, Core Walls Structure
There is the compartment stretched for cantilever on barrel, while being provided with the hole passed through for bearing on the barrel of Core Walls Structure.
Further, described cantilever has three, is distributed in by 120 ° of the angle of cut on three compartments of Core Walls Structure.
Further, described bearing is to fix Core Walls Structure and cantilever by the hole through the hole of cantilever and Core Walls Structure
Relative position, and cantilever can be allowed around bearing rotary certain angle.
Further, described gravity bob is a part positioned at Core Walls Structure center, and its top is to unload to draw for bolt
The nose of power rope, its underpart is cylinder-shaped body, under normal circumstances by gravity sag, causes cantilever to open up arm and prevents cantilever from existing
Retracted during bearing load, the prevention to cantilever can be cancelled when gravity bob is above proposed by external force, allow cantilever freely to retract, work as gravity bob
When being carried in continuation, stress is applied by the construction on cantilever top and ensured inside cantilever retraction Core Walls Structure.
Further, described cantilever includes lower cantalever and upper cantilever, and depression is provided with and outstanding in the inner side of upper cantilever
Arm aperture.
The method constructed using described stake button is as follows：
Down pile sinking is saved in the simple soil layer of geology, one, after certain altitude is sunk to, another section is attached on a following section
Continue pile sinking, so construct until pile sinking is long to predetermined stake；
For the construction section of pile sinking geology somewhat complexity, first it is about to staking, stake button, ring flange is then arranged on two
Hold in stake, prestressing force is loaded using loading tensile rope, keep whole stake stability, piling construction, to unloading pulling force rope after finishing
Apply pulling force to cause stake button cantilever to be retracted to take off back stake；
The stake that pile sinking terminates, hauls unloading pulling force rope and stake button sinks through stake chamber, until corresponding stake intracavitary, draws
Loading tensile rope, stake button cantilever is opened, continued toward pull-up, stake buckle lives an afterbody and forms upward pulling force, stake is pulled away from
Soil layer.
Beneficial effects of the present invention are as follows：
The prefabricated smooth stake of ear of maize straw of armored concrete：Tied with special head shape and tail shape and lumen portion
Structure, makes it have from occlusion spreading ability, be head in spreading, afterbody dock, with head inner faces contact and passing outside afterbody
Pass axial compressive force, afterbody inner face outside head with contacting and transmitting axial compressive force, and afterbody cylinder has been in contact bag with head cylinder
Effect is wrapped up in ensure the globality and stability of stake under lateral forces.Standard component batch production can be carried out simultaneously, can be certainly
I is engaged spreading, simplifies construction link, Optimizing construction flow.
The prefabricated ear of maize straw hole stake of armored concrete：On the basis of the smooth stake of ear of maize straw, permeable hole is designed on pile lining, when
When stake is through aqueous argillic horizon or progress treatment of soft foundation, the soil moisture contacted with pile lining can be collected into pipe by permeable hole
Pars intramuralis, so as to clear up hydraulic pressure, clear up super space soil pressure, shortens the stake of ear of maize straw and enters the working condition time.
The prefabricated ear of maize straw infiltration stake of armored concrete：On the basis of the stake of ear of maize straw hole, by between the Kong Yukong on pile lining
Reserved groove, the fabric threads then made using infiltration geotextile, which are twined, ties up, for permeability especially small argillic horizon, fabric threads
Twine and be tied on pile lining groove, it is to avoid influenceed to break by excessive soil pressure in pile driving process, fabric threads are contacted with argillic horizon, absorb
Moisture in soil layer and along fabric threads seepage flow, flows to inside tube wall through pile lining hole, is dissipated by evaporation or artificial extract.
The stake of ear of maize straw is buckled, and causes pile sinking environment complicated when ear of maize straw staking long value is more more complicated than larger or soil property environment
When, the straw stake of design ear of maize is buckled, and buckleing, apply the pulling force rope of pulling force, ring flange using the stake of ear of maize straw fixes the ear of maize straw of concatenation,
Stability under the stability of raising ear of maize straw entirety and the external force effect in pile driving process, so as to ensure pile sinking effect.Treat
Concerned process steps are completed, and can be selected to reclaim on stake button or be continued to allow its work.
When the smooth stake of ear of maize straw, hole stake, infiltration stake gone wrong in work progress or the draining later stage want to stake carry out
During recovery, play the stake of ear of maize straw using unloading pulling force rope and buckle along the sinking of stake internal diameter, to desired depth after drawn using loading tensile rope
Firmly ear of maize straw stake is buckled, and now ear of maize straw stake is buckled cantilever and opened because gravity bob is moved down relatively, carries loading tensile rope and up moves
Until cantilever suits in ear of maize straw stake bore tail surface, the pulling force effect that now loading tensile rope applies to stake, it can continue
Stake is reclaimed in loading.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 (1), the smooth stake schematic diagram of the prefabricated ear of maize straw of Fig. 1 (2) armored concrete；
The prefabricated ear of maize straw hole stake schematic diagram of Fig. 2 (1), Fig. 2 (2) armored concrete；
The prefabricated ear of maize straw infiltration stake schematic diagram of Fig. 3 (1), Fig. 3 (2) armored concrete；
Explosive view is buckled in Fig. 4 (1), the stake of Fig. 4 (2) ear of maize straw；
Schematic diagram is buckled in Fig. 5 (1), the stake of Fig. 5 (2) ear of maize straw；
Fig. 6 (1), Fig. 6 (2), Fig. 6 (3), Fig. 6 (4) Core Walls Structure schematic diagram；
Fig. 7 (1), Fig. 7 (2) cantilever schematic diagram；
Fig. 8 (1), Fig. 8 (2) gravity bob schematic diagram；
Fig. 9 (1), Fig. 9 (2) bearing schematic diagram；
In figure：The prefabricated smooth stake of ear of maize straw of 1 armored concrete, 2 be that outside stake afterbody, 3 be stake afterbody cylinder, and 4 be afterbody
Inner face, 5 be uropore, and 6 be bore tail surface, and 7 be stake bore, and 8 be stake head bore, and 9 be head inner face, and 10 be head cylinder,
11 be that outside head, 12 be the prefabricated ear of maize straw hole stake of armored concrete, 13 pile lining holes, the prefabricated ear of maize straw infiltration of 14 armored concrete
Stake, 15 levels are to communication groove, 16 vertical communication grooves, 17 gravity bobs, 18 Core Walls Structures, 19 bearings, 20 cantilevers, and 21 ear of maize straw stakes are buckled,
22 holes, the nose of 23 Core Walls Structures, 24 holes, the compartment of 25 Core Walls Structures, 26 upper cantilevers, 27 cantilever holes, 28 depressions, the lower of 29 cantilevers hangs
Arm, the nose of 30 gravity bobs, 31 gravity bobs, 32 afterbodys.
Embodiment
Hereinafter, embodiments of the present invention are illustrated with reference to the accompanying drawings.
Ear of maize in the present invention is that Weifang Prefecture of Shandong Province is commonly called as to corn, and ear of maize straw are corn stalk, ear of maize straw matter
Gently, high, wind loading rating is strong, and it is structurally characterized in that one successively, and inspiration of the invention comes from ear of maize straw, therefore named ear of maize straw stake.
As shown in Fig. 1 (1), Fig. 1 (2), left side is the smooth stake 1 of the prefabricated ear of maize straw of armored concrete, and right side is its sectional view,
It includes a hollow pile body, and described pile body head is raised in pile body end and along the axis of pile body inwall provided with one
The cylindrical end tangs I that direction extends into pile body, the afterbody of the pile body is provided with sinking into cylindrical end portions and along in pile body in one
The cylindrical end tangs II of the radial direction extension of wall；Described cylindrical end tangs I, cylindrical end tangs II center are provided with what is communicated with pile body
Hole；Specifically represent in figure as 2, stake afterbody cylinder 3, afterbody inner face 4, uropore 5, bore tail surface 6, stake endoporus outside stake afterbody
11 outside chamber 7, stake head bore 8, head inner face 9, head cylinder 10, head；
The prefabricated smooth stake of ear of maize straw of armored concrete have from occlusion spreading ability, in spreading for head, afterbody dock,
Afterbody outside 2 is contacted with head inner face 9 and transmits axial compressive force in such as Fig. 1, and afterbody inner face 4 is contacted and transmitted with outside head 11
Axial compressive force, afterbody cylinder 3 has been in contact package action to ensure the globality of stake under lateral forces with head cylinder 10
And stability.
Meanwhile, such as shown in Fig. 1 (1), Fig. 1 (2), it is contemplated that reduce difficulty when stake button sinks, by stake internal cavity
An inclination angle is devised below.
Construction method is as follows：
That the prefabricated smooth stake of ear of maize straw of armored concrete is produced in batches first, transport to need carry out treatment of soft foundation or
Person strengthens the building site location of foundation bearing capacity, takes out stake and carries out pile sinking, wait pile sinking to afterbody apart from ground 30cm or so when,
Second pile is connected to the stake afterbody just in pile sinking, continues pile sinking, when the second pile afterbody also has 30cm apart from ground, again
Access the 3rd pile and continue pile sinking ..., by parity of reasoning constructs, and pile sinking terminates after spreading to projected depth.Due to the long fixation of stake,
Shape is fixed, and the prefabricated smooth stake of ear of maize straw of armored concrete can be standardized, produced in batches, simplifies template specification and quantity, letter
Change prefabrication process fussy degree, reduction transport burden, reduction keeping is born, and construction technology is simple.
Fig. 2 (1), Fig. 2 (2) show the schematic diagram of the prefabricated ear of maize straw hole stake 12 of armored concrete, and its feature is relatively
Many hole, i.e. pile lining holes 13 on pile lining, when having aqueous argillic horizon below ground, the squeezing action of smooth stake are compared in smooth stake
Aqueous argillic horizon can be made to produce super space soil pressure, so that the coefficient of friction vanishing of hole wall and soil, causes friction pile friction
Effect failure, just designs the prefabricated ear of maize straw hole stake of armored concrete to handle this problem, handles deep according to ground situation, stake
Degree, stake elongate member, in the depth contacted with aquifer using the stake of ear of maize straw hole, for by soil layer-stake face interface water penetration
Into stake, super space soil pressure is cleared up, it is ensured that the task performance of whole stake.
Fig. 3 (1), Fig. 3 (2) show the infiltration stake 14 of armored concrete prefabricated ear of maize straw, when argillic horizon permeability very
It is low, in the case of the super very difficult dissipation of space soil pressure, cleared up because several point positions in hole stake simply hole wall carry out hydraulic pressure, speed
Degree is slow, effect is poor, the prefabricated ear of maize straw infiltration stake of design armored concrete, on the basis of hole, and use level is to communication groove 15
The hole on the outside of hole wall is all linked up with vertical communication groove 16, the lines woven using infiltration geotextile are laid in vertical UNICOM
In groove 16, colligation is then carried out to communication groove 15 by level with this fabric again, equally calculated in work progress corresponding
Depth is contacted using the prefabricated ear of maize straw infiltration stake of this armored concrete, infiltration geotextile lines are contacted with aqueous argillic horizon, will
Neighbouring water penetration is collected into a bore 7 to inside lines then along lines seepage flow through hole.So just dissipated phase
The super hole soil pressure of argillic horizon is answered, the stake of ear of maize straw is reached the bearing capacity of design into working condition as early as possible or is reached quick
The effect of consolidation draining.
Fig. 4 (1) Fig. 4 (2) is that explosive view is buckled in the stake of ear of maize straw, and Fig. 5 (1), Fig. 5 (2) are that schematic diagram is buckled in the stake of ear of maize straw；It includes
Core Walls Structure 18, gravity bob 17, cantilever 20, bearing 19；
The column neck 31 of gravity bob 17 is through in the hole 22 of Core Walls Structure, and gravity bob can be moved up and down in Core Walls Structure, weight
The nose 30 of power pendulum and two bulk portions of afterbody 32 can limit the distance that gravity bob is moved up and down.
Cantilever 20 includes lower cantalever 29, upper cantilever 26, in the inner side of upper cantilever 26 provided with depression 28 and cantilever hole 27；
Compartment 25 of the Core Walls Structure 18 provided with core bore 24 and Core Walls Structure, compartment 25 is distributed for three totally in 120 ° of angles
On Core Walls Structure, cantilever 20 has three and is separately mounted on three compartments 25 of Core Walls Structure；
Bearing 19, is interrupting member, and pattern shown in the reproduction Fig. 9 (1) that connects together, 9 (2), bearing 19 passes through core bore
24 and cantilever hole 27 Core Walls Structure and three cantilevers are linked up, and can guarantee that cantilever around bearing rotary.
The nose 23 of Core Walls Structure is used for bolt loading tensile rope, and the nose 30 of gravity bob unloads pulling force rope for bolt.
When the prefabricated smooth stake of ear of maize straw, hole stake, infiltration staking length it is long, or geological condition it is more complicated cause it is whole
When the stability of stake is affected, the stake being docking together applies prestressing force and ensures its stability and then again pile sinking.The stake of ear of maize straw
The gravity bob gravity of button is big, and no lower its of external force effect, which is naturally drooped, supports cantilever 20 shown in minimum point such as Fig. 5 (1), Fig. 5 (2)
Open and prevent cantilever from retracting, the bore tail surface 6 of a section stake of the contact of lower cantalever 29 bottom, loading tensile rope is connected to Core Walls Structure
Nose 23 on, unloading pulling force rope is connected on the nose 30 of gravity bob, and then loading tensile rope is through all spreading stakes, most
Apply certain prestressing force to loading tensile rope to ensure the resistance to overturning of stake using ring flange and Anti-withdrawing bolt at upper end, together
When ensure that unloading pulling force rope is in without state of tension, after carrying out pile sinking, pile sinking to precalculated position using equipment afterwards, to unloading
Dragged in pulling force rope applying power, the nose 30 of unloading pulling force rope dragging gravity bob is moved up, when the afterbody 32 of gravity bob moves on to cantilever 20
The position of depression 28 after, the support that cantilever loses the afterbody 32 of gravity bob will rotate at the position of cantilever hole 27 around bearing 19,
The upper cantilever 26 of part cantilever will be encountered in the upper end of the afterbody 32 of gravity bob after gravity bob continues to move up, and upper cantilever 26 is strutted
Lower cantalever 29 can retract in Core Walls Structure afterwards, while the loading tensile rope prestressing force for connecting the nose 23 of Core Walls Structure dissipates, so exist
Under the pulling force effect for unloading pulling force rope, the head bore 8 that can sequentially pass through every pile, stake bore 7, tail hole 5 are buckled in the stake of ear of maize straw,
Finally it is recovered.
If it is desired to stake is reclaimed, play stake button using unloading pulling force rope and sink, stake button is put into this stake bore
Depth, then holding loading tensile makes unloading pulling force rope tension vanishing, and gravity bob 17, which is moved down, props up cantilever 20, continues up
Draw loading tensile rope just can make this cavity tail surface 6 of cantilever contacts, the pulling force effect applied after contact by loading tensile rope
In stake, stake is pulled out from soil layer so as to form pulling force to stake.
The structure of above-mentioned not detailed description, construction, such as loading tensile rope, the connected mode for unloading pulling force rope, load mode
Deng being the common knowledge of art, be that can be achieved by conventional method, will not be repeated here.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (4)
1. a kind of ear of maize straw stake used cooperatively with the prefabricated smooth stake of ear of maize straw of armored concrete is buckled, described armored concrete is pre-
The smooth stake of ear of maize straw processed includes hollow pile body, and described pile body head is raised in pile body end and along stake provided with one
The cylindrical end tangs I that the axis direction of internal wall extends into pile body, the afterbody of the pile body, which is provided with one, sinks into cylindrical end portions
And the cylindrical end tangs II of the axis direction extension along pile body inwall；Described cylindrical end tangs I, cylindrical end tangs II center are provided with
The hole communicated with pile body；It is characterized in that：The ear of maize straw stake is buckled including Core Walls Structure, cantilever, bearing, gravity bob, described core
The barrel of heart cylinder is fitted with a cantilever provided with three compartments with 120 ° of angle of cut arrangements in each compartment, and three hang
Arm fixes its position by a bearing, and described gravity bob is hung vertically in the center of Core Walls Structure, and its top extends to core
Cylinder is outer；The top of described Core Walls Structure is provided with the hole passed through for the nose of bolt loading tensile rope and for cantilever, while in core
The barrel of cylinder is provided with the hole passed through for bearing；Described gravity bob, its top is the nose that pulling force rope is unloaded for bolt, bottom
It is cylinder-shaped body.
2. ear of maize straw stake as claimed in claim 1 is buckled, it is characterised in that：Described cantilever includes lower cantalever and upper cantilever,
The inner side of upper cantilever is provided with depression and cantilever hole.
3. ear of maize straw stake as claimed in claim 2 is buckled, it is characterised in that：Described bearing is by through cantilever hole and core
Supply the hole that bearing is passed through to fix the relative position of Core Walls Structure and cantilever on the barrel of cylinder, and cantilever can be made certain around bearing rotary
Angle.
4. the method constructed is buckled using the ear of maize straw stake described in claim 1, it is characterised in that：
Down pile sinking is saved in the simple soil layer of geology, one, after certain altitude is sunk to, another section is attached on a following section and continued
Pile sinking, so construction are long to predetermined stake until pile sinking；
For the construction section of pile sinking geology somewhat complexity, first it is about to staking, stake button, ring flange is then arranged on two ends stake
On, prestressing force is loaded using loading tensile rope, whole stake stability is kept, piling construction applies after finishing to unloading pulling force rope
Pulling force causes stake button cantilever to be retracted to take off back stake；
The stake that pile sinking terminates, hauls unloading pulling force rope and stake button sinks through stake chamber, until corresponding stake intracavitary, hauls and adds
Pulling force rope is carried, stake button cantilever is opened, continued toward pull-up, stake buckle lives an afterbody and forms upward pulling force, and stake is pulled away from into soil layer.
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| CN201610013047.0A CN105507237B (en) | 2016-01-08 | 2016-01-08 | A kind of ear of maize straw stake and construction method |
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| CN201610013047.0A CN105507237B (en) | 2016-01-08 | 2016-01-08 | A kind of ear of maize straw stake and construction method |
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| CN105507237B true CN105507237B (en) | 2017-08-25 |
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| CN105040678A (en) * | 2015-06-09 | 2015-11-11 | 周兆弟 | Precast pile with concave clamping platform and convex clamping platform |
| CN205576895U (en) * | 2016-01-08 | 2016-09-14 | 山东省交通规划设计院 | Prefabricated ear of maize stalks left after threshing stake of reinforced concrete and stalks left after threshing stake are buckled |
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| CN201214787Y (en) * | 2008-06-05 | 2009-04-01 | 梁钰泽 | Rigid water drain pile |
| CN201588206U (en) * | 2009-11-12 | 2010-09-22 | 任再永 | Water discharge pile pipe |
| JP2010190038A (en) * | 2010-06-04 | 2010-09-02 | Mitani Sekisan Co Ltd | Method for joining prefabricated pile and joint metal for the prefabricated pile |
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| CN105040678A (en) * | 2015-06-09 | 2015-11-11 | 周兆弟 | Precast pile with concave clamping platform and convex clamping platform |
| CN105002986A (en) * | 2015-06-25 | 2015-10-28 | 周兆弟 | Clamping matching type connecting element |
| CN205576895U (en) * | 2016-01-08 | 2016-09-14 | 山东省交通规划设计院 | Prefabricated ear of maize stalks left after threshing stake of reinforced concrete and stalks left after threshing stake are buckled |
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| Publication number | Publication date |
|---|---|
| CN105507237A (en) | 2016-04-20 |
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