CN109555113A - A kind of concrete precast pile with axial length compensation function - Google Patents
A kind of concrete precast pile with axial length compensation function Download PDFInfo
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- CN109555113A CN109555113A CN201910049959.7A CN201910049959A CN109555113A CN 109555113 A CN109555113 A CN 109555113A CN 201910049959 A CN201910049959 A CN 201910049959A CN 109555113 A CN109555113 A CN 109555113A
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- 230000004323 axial length Effects 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 230000007704 transition Effects 0.000 claims abstract description 38
- 210000002105 tongue Anatomy 0.000 claims description 197
- 238000000034 method Methods 0.000 claims description 38
- 230000002441 reversible effect Effects 0.000 claims description 33
- 239000002689 soil Substances 0.000 claims description 16
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 12
- 239000004927 clay Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004576 sand Substances 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
-
- 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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- Engineering & Computer Science (AREA)
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- 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
A kind of concrete precast pile with axial length compensation function, including pile jacking, bottom stake, transition stake and length autocompensation installation, length autocompensation installation includes piston body, cylinder body, limit screw, one-way shaft shift lock mechanism, one-way shaft shift lock mechanism is arranged between piston body and cylinder body, in the state that one-way shaft shift lock mechanism is in front of stress movement, it is fixedly connected integrally between piston body and cylinder body by limit screw axial, cylinder body is fixed in the stake of bottom, and piston body is fixed in transition stake.Length autocompensation installation, in piston body and cylinder body respectively by under limit opposing pulling force state, the axial limit screw of connection piston body and cylinder body will be pulled off, piston body will can have a certain amount of axial monodisplacement relative to cylinder body, it can make upper section pile body is a certain amount of with respect to bottom stake generation to move up distance, so that whole pile body needed for meeting floating stake moves up size requirement, the broken pile for occurring floating stake and causing during piling can be eliminated or hang foot stake.
Description
Technical field:
The present invention relates to concrete precast pile structural members more particularly to a kind of with the concrete prefabricated of length compensation function
Stake, pile body can compensate automatically in length direction after piling soil property floats.
Background technique:
During building is made in building, concrete precast pile structural member is especially usually used during building high-rise building
The ground of building is constituted, to carry the gravity load and working load of high-rise building.Existing concrete precast pile structural member is logical
Often include tubular pole and square pile, is welded into together between two piles of section up and down by steel end plate.Piling mode can be divided into hammering
Piling method and Static piling, no matter tubular pole or square pile, either impact piling or static pressure piling, a clump of piles piling terminate
Afterwards, building foundation ground usually will appear the phenomenon that low land upheaval of intermediate high surrounding is to drive prefabricated pile to float.Firmly
In clay prefabricated pile foundation be usually expressed as pile body integrally float generation hang foot stake；On the prefabricated pile foundation of shallow-layer dense sand soil layer is usual
Portion's pile body float-amount is big and lower part pile body is relatively fixed, shows as broken pile or hangs foot stake.The weld strength of connector between stake connection
The compression strength of the generally less than self-strength of pile body, tubular pole is very big, but tensile strength is lower, and connector is most weak ring between stake
Section, under ultimate tensile strength effect, pile joint is easiest to break for the tensile strength of concrete precast pile, broken pile or to hang foot stake equal
It shows at the joint or stake end of stake.
Two kinds of consequences can be generated after pile shaft floating up, first is after pile body integrally floats, and empty, formation custom is drawn in the lower end of latter end stake
" the hanging foot stake " claimed, shows as bearing capacity of pile tip and greatly reduces or disappear；Second is that prefabricated stake body upper section floats and lower section is solid
It is fixed non-rising, to break pile body, formed so-called " broken pile ", show as prefabricated pile and only have upper section to have bearing capacity, " broken pile " below
Section does not play carrying effect.Two kinds performance can be proved and be analyzed by static test come.The harm of floating stake is main
The following several points of performance:
(1) after floating stake, " hanging foot stake " still " broken pile " is either caused, the bearing capacity of pile body is not able to satisfy built-loading
It is required that sedimentation of the building by generation by a relatively large margin, consequence is more serious if generation unevenly settles, it is most likely that causes to build
Building structure cracking or deformation, will lead to that building inclination is exceeded when serious, cause deformation or the cracking of whole building structure, directly
The use function and safety for influencing building, also will cause collapsing for building in extreme circumstances.
(2) the loading test of foundation engineering stake is unqualified, not only needs to take a long time to be repaired, but also repairs
It is costly, also to postpone to hand over the room duration, directly affect the prestige of developer.
Currently, processing floating stake common method there are several types of:
(1) after the prefabricated pile in cohesive soil floats, the method for generalling use strike-on or pressing again is handled, strike-on or multiple pressure
Although effective, tend not to tackle the problem at its root, because of the reason of this measure for solving to float and formation are floated
There is no relevances in logic.
(2) float to the prefabricated pile in dense sand soil layer, multiple pressure or strike-on there is no that effect or effect are very limited.
(3), for there may be the soil layers that prefabricated pile floats, some precautionary measures can be taken in advance, for example generally use
Pilot hole measure, can a hundred percent pilot hole, can also pilot hole by a certain percentage, pilot hole depth determines according to soil properties, general pilot hole
Depth is no more than 70 the percent of effective length.But after taking pilot hole measure, prefabricated pile rising phenomenon can only be mitigated, be difficult thorough
Bottom solves prefabricated pile On The Floating, needs to carry out secondary treatment toward contact.
(4) construct in saturated soft clay before prefabricated pile, sand pile can be set in the soil body in advance or set plastic row water body, with
Elimination sets the excess pore water pressure generated after prefabricated pile, and the soil body is grand certain effect to reducing, but cannot completely eliminate pile body
It floats.
(5) pile cutoff is lacked for bearing capacity, current relatively effective measure is to carry out high-pressure rotary sprinkling afterwards, but apply
Work difficulty is big, and special equipment is needed just to can be carried out, and costly, long in time limit.
No matter in conclusion which kind of method to handle floating stake problem, the double loss of duration and expense, to engineering using afterwards
For, it is all an additional burden.According to the applicant understood, up to the present, concrete is solved there are no prior in the industry
Prefabricated pile floats the effective ways of stake problem.
The reason of applicant generates floating stake to concrete precast pile has carried out long-term research and analysis, in following several stakes
Local soil type easily forms floating stake phenomenon in closing:
(1) the short time Incoercibility of batt is saturated, when entering prefabricated pile in saturation batt, since its is extremely low
Permeability, for the pile duration of prefabricated pile, the geotechnological characteristic showed is incompressible, the soil body in the short time
It is squeezed out upwards under the action of prefabricated pile dilatation, the soil body dragging pile body moved upwards moves up, and forms floating stake phenomenon；
(2) superficial part or the top soil body are more closely knit sandy soils, and when piling stress release, the superficial part soil body is generated back up
The upward frictional force of bullet, the closely knit sand of superficial part or top and pile body is enough to overcome the downward frictional force of lower part pile body, drags pile body
Entirety moves up, and forms floating stake phenomenon.
(3) there is also short time Incoercibilities for saturated soft clay, but since it is not enough to the upward frictional force of prefabricated pile
The build-in force of lower part prefabricated pile is overcome, so prefabricated pile rising phenomenon is unobvious.
(4) inter-pile soil is old clay, and when stake end is decomposed rock, due to the low compressibility of old clay, surface uplift is bright after piling
It is aobvious, form floating stake phenomenon.
In order to effectively solve the problems, such as floating stake and the broken pile of concrete precast pile, applicants have invented one kind to have length compensation
The concrete precast pile of function, it can compensate pile shaft floating up automatically and add pile body length, to guarantee that built-loading effectively reaches
Entire pile body eliminates " hanging foot stake " or " broken pile " phenomenon.
Summary of the invention:
The object of the present invention is to provide a kind of concrete precast piles with axial length compensation function, it can solve coagulation
Native prefabricated pile carries out autocompensation installation to the deformation of pile body length during there is floating stake, and pile body is effectively prevent to occur hanging foot
Stake or broken pile.
The technical solution adopted by the present invention is as follows:
A kind of concrete precast pile with axial length compensation function, it is characterized in that: including concrete pile body and length
Autocompensation installation, the concrete pile body are single-unit stake, two section stakes or more piece stake, and the length autocompensation installation includes living
Cock body, cylinder body, limit screw and one-way shaft shift lock mechanism, one-way shaft shift lock mechanism are arranged in piston body and cylinder
Between body, in the state that one-way shaft shift lock mechanism is in front of stress movement, by limit screw between piston body and cylinder body
Axial restraint links into an integrated entity；When concrete pile body is single-unit stake, concrete pile body is arranged in length autocompensation installation
Bottom, piston body are fixed in concrete pile body, and when concrete pile body is two section stake being made of pile jacking and bottom stake, length is certainly
Dynamic compensation device setting is between pile jacking and bottom stake, and cylinder body is fixed in the stake of bottom, and piston body is fixed on pile jacking；Work as concrete-pile
Body be include pile jacking, bottom stake and transition stake more piece stake when, length autocompensation installation setting pile jacking and bottom stake between, cylinder body
Bottom stake is fixed on above or in transition stake, piston body is fixed in transition stake or on pile jacking.
Further, the concrete more piece stake includes a transition stake, and transition stake setting is between pile jacking and bottom stake, length
Between bottom stake and transition stake, the cylinder body of the length autocompensation installation is fixed in the stake of bottom, living for autocompensation installation setting
Cock body is fixed in transition stake.
Further, the concrete more piece stake includes two or more transition stakes, and transition stake is arranged after being connected in series in pile jacking
Between the stake of bottom, the setting of length autocompensation installation is between bottom stake and transition stake, the cylinder body of the length autocompensation installation
It is fixed in the stake of bottom, piston body is fixed in transition stake；Or length autocompensation installation is arranged between two transition stakes, it is described
The cylinder body of length autocompensation installation is fixed in the transition stake of lower section, and piston body is fixed in the transition stake of top.
Further, one-way shaft shift lock mechanism include be sleeved on the intracorporal unidirectional lock tongue of piston, two-way lock tongue,
Spring, technique pin, the unidirectional locked groove and two-way locked groove being arranged on the cooperation inner hole medial surface of cylinder body, unidirectional lock tongue sliding slot and double
Cooperation cylinder to lock tongue sliding slot along piston body is axially arranged；Along being axially arranged with unidirectional locked groove and double in the cooperation inner hole of cylinder body
To locked groove, the lower end surface of unidirectional locked groove is plane, and side is cambered surface or inclined-plane, and the cross sectional shape of two-way locked groove is rectangle, unidirectionally
The side at the lock end of lock tongue is cambered surface or inclined-plane, and unidirectional lock tongue is inserted into unidirectional lock tongue sliding slot, in the tail portion of unidirectional lock tongue
Spring is equipped between piston body, two-way lock tongue is inserted into two-way lock tongue sliding slot, the tail portion of two-way lock tongue and piston body it
Between be equipped with spring, all unidirectional lock tongues and two-way lock tongue pass through the limit of technique pin in piston body, all unidirectional lock tongues and double
It contracts within the outer face surface of cooperation cylinder to the overhanging end of lock tongue, piston body and unidirectional lock tongue, two-way lock tongue, spring and work
The combination of skill pin is sleeved in the cooperation inner hole of cylinder body, is fixedly connected between piston body and cylinder body by limit screw axial.
Further, in one-way shaft shift lock mechanism, the axially spaced-apart along piston body is equipped with N number of unidirectional lock tongue
Group and a two-way lock tongue group, each unidirectional lock tongue group are uniformly distributed two and more than two one-way locks in the circumferential direction of piston body
Tongue, two-way lock tongue group are uniformly distributed two and more than two two-way lock tongues along the circumferential direction of piston body.
Further, circumferential direction equally distributed two unidirectional lock tongue of the unidirectional lock tongue group along piston body, two-way lock tongue
For group along equally distributed two two-way lock tongues of circumferential direction of piston body, the lower section of unidirectional lock tongue is arranged in two-way lock tongue.
Further, the lower section of unidirectional lock tongue sliding slot is arranged in two-way lock tongue sliding slot, in the top one-way lock of two-way locked groove
The setting quantity of slot is 0-3.
Further, one-way shaft shift lock mechanism includes unidirectional lock tongue, two-way lock tongue, spring and technique pin, in work
Unidirectional lock tongue slot and reversible lock glossal canal are equipped on the cooperation cylinder of cock body axially spacedly, the upper surface of unidirectional lock tongue slot is flat
Face, side are cambered surface or inclined-plane, and the cross sectional shape of reversible lock glossal canal is rectangle, the side of the overhanging end of unidirectional lock tongue be cambered surface or
Inclined-plane, is equipped with one-way lock sliding slot and reversible lock sliding slot on a side wall of the cylinder axially spacedly, and unidirectional lock tongue is inserted into unidirectionally
It locks in sliding slot, spring is equipped between the tail portion and cylinder body of unidirectional lock tongue, two-way lock tongue is inserted into reversible lock sliding slot, two-way
Spring is equipped between the tail portion and cylinder body of lock tongue, all unidirectional lock tongues and two-way lock tongue pass through technique pin and be installed in cylinder body
Interior, the lock end of all unidirectional lock tongues and two-way lock tongue is contracted within the inner hole surface surface of cylinder body, is sleeved on cylinder in piston body
Before the cooperation inner hole of body, it is fixedly connected between piston body and cylinder body by axial limit screw.
Further, the unidirectional lock tongue group includes two one-way locks symmetrical along the circumferential direction of cylinder body cooperation inner hole
Tongue, two-way lock tongue group include two two-way lock tongues symmetrical along the circumferential direction of cylinder body cooperation inner hole, and two-way lock tongue is arranged in list
To the lower section of lock tongue, in the top of reversible lock glossal canal, the setting quantity of unidirectional lock tongue slot is 0-3.
Further, one-way shaft shift lock mechanism includes rotating lock tongue, two-way lock tongue, spring, technique pin and technique
Mandrel is equipped with unidirectional limiting slot and reversible lock glossal canal axially spacedly on the cooperation cylinder of piston body, unidirectional limiting slot
Upper surface is plane, and the cross sectional shape of reversible lock glossal canal is rectangle, and the overhanging end of rotating lock tongue is plane, and rotating lock tongue is along cylinder body
Inner hole side wall be axially spaced to be arranged, the lower end of rotating lock tongue and the inner hole side wall of cylinder body be hinged, rotating lock tongue it is upper
It is equipped with spring between section and cylinder body, reversible lock sliding slot is horizontally equipped on cylinder body, rotating lock tongue is arranged in reversible lock sliding slot
Top, two-way lock tongue are inserted into reversible lock sliding slot, and spring, all rotation locks are equipped between the tail portion and cylinder body of two-way lock tongue
Tongue passes through the limit of technique mandrel in cylinder body, and two-way lock tongue is installed in cylinder body by technique pin, in piston set body
When rotating lock tongue and spring oppressed by technique mandrel, when the bottom end of cooperation cylinder cooperates the bottom surface of inner hole to be in contact with cylinder body
When, it is fixedly connected between piston body and cylinder body by axial limit screw.
Further, one-way shaft shift lock mechanism is single roll locking mechanism, in the matching hole and piston of cylinder body
It is evenly provided with the low tilting rolling slideway of relative superiority or inferiority on cooperation section side wall between body, is equipped with and rolls in rolling slideway
Body.
In the present invention, the structure that functions replace there are many more one-way shaft shift lock mechanisms etc., such as: unidirectional contract
Block locking mechanism unidirectionally stirs retaining mechanism etc., as long as being able to achieve piston body and cylinder body under by opposing pulling force state, energy
All schemes for generating axial monodisplacement function locking function between piston body and cylinder body are made to belong to protection model of the invention
It encloses.
Due to being additionally arranged length autocompensation installation in concrete precast pile connection component, in length autocompensation installation
Piston body and cylinder body between be provided with one-way shaft shift lock mechanism, in piston body and cylinder body respectively by limit opposing pulling force
Under state, the axial limit screw for connecting piston body and cylinder body will be pulled off, and piston body will can have a certain amount of relative to cylinder body
Axial monodisplacement, even if floating stake phenomenon occurs during piling in this one-way shaft shift lock mechanism, it can make pile jacking
Or transition stake with respect to bottom stake generate it is a certain amount of move up distance, so that whole pile body needed for meeting floating stake moves up size requirement, energy
It eliminates the broken pile for occurring floating stake and causing during piling or hangs foot stake.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram of the invention, and the top of bottom stake is arranged in length autocompensation installation, and in upper
State before floating；
Fig. 2 is that piston body is in the compensated state that floats in length autocompensation installation in Fig. 1；
Fig. 3 is a kind of structural schematic diagram of length autocompensation installation, the state before use；
Fig. 4 is that Fig. 3 extracts the configuration state schematic diagram after technique pin；
Fig. 5 is the structural schematic diagram that Fig. 3 piston body is in length compensation limiting condition；
Fig. 6 is the structural schematic diagram of piston body in Fig. 3；
Fig. 7 is the structural schematic diagram of cylinder body in Fig. 3；
Fig. 8 is a kind of structural schematic diagram of A-A section view in Fig. 5, and two unidirectional lock tongues are symmetrical；
Fig. 9 is another structural schematic diagram of A-A section view in Fig. 5, and four unidirectional lock tongues are symmetrical；
Figure 10 is second of structural schematic diagram of length autocompensation installation, and unidirectional lock tongue and two-way lock tongue are inserted into cylinder
On body；
Figure 11 is the third structural schematic diagram of length autocompensation installation, one-directionally rotates locking structure；
Figure 12 is the 4th kind of structural schematic diagram of length autocompensation installation, single roll locking structure.
In figure: 1- pile jacking；The stake of the bottom 2-；3- transition stake；4- length autocompensation installation；41- piston body；42- cylinder body；43-
Limit screw；44- one-way shaft shift lock mechanism；45- rolling element；411- cooperates cylinder；The unidirectional lock tongue sliding slot of 412-；413- is bis-
To lock tongue sliding slot；The unidirectional lock tongue slot of 414-；415- reversible lock glossal canal；The unidirectional limiting slot of 416-；421- cooperates inner hole；422- is unidirectional
Locked groove；The two-way locked groove of 423-；424- one-way lock sliding slot；425- reversible lock sliding slot；426- rolling slideway；The unidirectional lock tongue of 441-；
442- two-way lock tongue；443- spring；444- technique pin；445- rotating lock tongue；446- technique mandrel.
Specific embodiment:
The specific embodiment illustrated the present invention with reference to the accompanying drawing:
Embodiment 1: a kind of concrete precast pile with axial length compensation function, as shown in Figure 1 and Figure 2, including pile jacking
1, bottom 2 and transition stake 3, the setting of transition stake 3 are equipped with length certainly between bottom stake 2 and transition stake 3 between pile jacking 1 and bottom stake 2
Dynamic compensation device 4, the length autocompensation installation 4, as shown in figs. 3-9, it includes piston body 41, cylinder body 42, limit screw
43 and one-way shaft shift lock mechanism 44, one-way shaft shift lock mechanism 44 is arranged between piston body 41 and cylinder body 42,
In the state that one-way shaft shift lock mechanism 44 is in front of stress movement, by limit screw 43 between piston body 41 and cylinder body 42
Axial restraint links into an integrated entity, and cylinder body 42 is fixed in bottom stake 2, and piston body 41 is fixed in transition stake 3, and cylinder body 42 is with inserts
Mode, which is cast, to be fixed in bottom stake 2, and the top plate of piston body 41 and the end plate of transition stake 3 are fixedly linked by welded type, the length
Autocompensation installation 4, including piston body 41, cylinder body 42, limit screw 43 and one-way shaft shift lock mechanism 44 are spent, it is described unidirectional
Axis shift lock mechanism 44 is arranged between piston body 41 and cylinder body 42, and it is mobile to be in stress in one-way shaft shift lock mechanism 44
Before in the state of, linked into an integrated entity between piston body 41 and cylinder body 42 by 43 axial restraint of limit screw, one-way shaft displacement
Locking mechanism 44 includes unidirectional lock tongue 441, two-way lock tongue 442, spring 443, the technique pin 444 being sleeved in piston body 41, if
Set the unidirectional locked groove 422 and two-way locked groove 423 on cooperation 421 medial surface of inner hole of cylinder body 42, unidirectional lock tongue sliding slot 412 and double
To lock tongue sliding slot 413 along the axial setting of cooperation cylinder 411 of piston body 41；It is set in the cooperation inner hole 421 of cylinder body 42 along axial direction
There are unidirectional locked groove 422 and two-way locked groove 423, the lower end surface of unidirectional locked groove 422 is plane, and side is cambered surface or inclined-plane, reversible lock
The cross sectional shape of slot 423 is rectangle, and the side at the lock end of unidirectional lock tongue 441 is cambered surface or inclined-plane, and unidirectional lock tongue 441 is inserted into
In unidirectional lock tongue sliding slot 412, spring 443 is equipped between the tail portion and piston body 41 of unidirectional lock tongue 441, two-way lock tongue 442 is inserted
In two-way lock tongue sliding slot 413, spring 443, all one-way locks are equipped between the tail portion and piston body 41 of two-way lock tongue 442
Tongue 441 and two-way lock tongue 442 are by the limit of technique pin 444 in piston body 41, all unidirectional lock tongues 441 and two-way lock tongue
442 overhanging end contracts within the outer face surface of cooperation cylinder 411, piston body 41 and unidirectional lock tongue 441, two-way lock tongue 442,
The combination of spring 443 and technique pin 444 is sleeved in the cooperation inner hole 421 of cylinder body 42, between piston body 41 and cylinder body 42 by
The connection of 43 axial restraint of limit screw.
In this example, the axially spaced-apart along piston body 41 is set there are six unidirectional lock tongue group and a two-way lock tongue group, two-way
The lower section of the unidirectional lock tongue group in lock tongue group position city, each unidirectional lock tongue group are uniformly distributed two unidirectional lock tongues in the circumferential direction of piston body 41
441, two-way lock tongue group is uniformly distributed two two-way lock tongues 442 in the circumferential direction of piston body 41, and two-way lock tongue 442 is arranged unidirectional
The lower section of unidirectional lock tongue sliding slot 412 is arranged in the lower section of lock tongue 441, two-way lock tongue sliding slot 413, in the top of two-way locked groove 423
The setting quantity of unidirectional locked groove 422 is 0-3.
Embodiment 2: difference from Example 1 is different in the structure of one-way shaft shift lock mechanism 44, in this example, single
Structure as shown in Figure 10 is used to axis shift lock mechanism 44, one-way shaft shift lock mechanism 44 includes unidirectional lock tongue
441, two-way lock tongue 442, spring 443 and technique pin 444 are equipped with axially spacedly on the cooperation cylinder 411 of piston body 41
Unidirectional lock tongue slot 414 and reversible lock glossal canal 415, the upper surface of unidirectional lock tongue slot 414 are plane, and side is cambered surface or inclined-plane, double
It is rectangle to the cross sectional shape of lock tongue slot 415, the side of the overhanging end of unidirectional lock tongue 441 is cambered surface or inclined-plane, in cylinder body 42
One-way lock sliding slot 424 and reversible lock sliding slot 425 are equipped on side wall axially spacedly, it is sliding that unidirectional lock tongue 441 is inserted into one-way lock
In slot 424, spring 443 is equipped between the tail portion and cylinder body 42 of unidirectional lock tongue 441, it is sliding that two-way lock tongue 442 is inserted into reversible lock
In slot 425, spring 443, all unidirectional lock tongues 441 and two-way lock tongue are equipped between the tail portion and cylinder body 42 of two-way lock tongue 442
442 are being mounted in cylinder body 42 by the limit of technique pin 444, and the lock end of all unidirectional lock tongues 441 and two-way lock tongue 442 is equal
Contracting is within the inner hole surface surface of cylinder body 42, before piston body 41 is sleeved on the cooperation inner hole 421 of cylinder body 42, piston body 41 and cylinder
It is fixedly connected between body 42 by axial limit screw 43.In this scheme, the unidirectional lock tongue group includes cooperating along cylinder body 42
Two symmetrical unidirectional lock tongues 441 of the circumferential direction of inner hole, two-way lock tongue group include along the circumferential symmetrical of the cooperation inner hole of cylinder body 42
Two two-way lock tongues 442 of distribution, the lower section of unidirectional lock tongue 441 is arranged in two-way lock tongue 442, in the upper of reversible lock glossal canal 415
The setting quantity of Fang Danxiang lock tongue slot 414 is 0-3.
Embodiment 3, difference from Example 1 are one-way shaft shift lock mechanism 44, and one-way shaft shifts in this example
Locking mechanism 44 uses structure as shown in figure 11, and one-way shaft shift lock mechanism 44 includes rotating lock tongue 445, reversible lock
Tongue 442, spring 443, technique pin 444 and technique mandrel 446 are set axially spacedly on the cooperation cylinder 411 of piston body 41
There are unidirectional limiting slot 416 and reversible lock glossal canal 415, the upper surface of unidirectional limiting slot 416 is plane, and reversible lock glossal canal 415 is cut
Face shape is rectangle, and the overhanging end of rotating lock tongue 445 is plane, and rotating lock tongue 445 is between the axial direction of the inner hole side wall of cylinder body 42
It is arranged every ground, the lower end of rotating lock tongue 445 is hinged with the inner hole side wall of cylinder body 42, the upper section and cylinder body 42 of rotating lock tongue 445
Between be equipped with spring 443, on cylinder body 42 horizontally be equipped with reversible lock sliding slot 425, reversible lock sliding slot 425 be arranged in rotating lock tongue
445 top, two-way lock tongue 442 are inserted into reversible lock sliding slot 425, are set between the tail portion and cylinder body 42 of two-way lock tongue 442
There is spring 443, for all rotating lock tongues 445 by the limit of technique mandrel 446 in cylinder body 42, two-way lock tongue 442 passes through technique
The limit of pin 444 is being mounted in cylinder body 42, oppresses rotating lock tongue 445 and bullet by technique mandrel 446 in piston set body 41
Spring 443, when cooperating the bottom end of cylinder 411 to be in contact with the bottom surface of cylinder body cooperation inner hole 421, between piston body 41 and cylinder body 42
It is fixedly connected by axial limit screw 43.
In above-mentioned each example, there are many embodiment of one-way shaft shift lock mechanism 44, can also be designed as unidirectionally rolling
Dynamic locking mechanism is equably set on the cooperation section side wall between the matching hole and piston body 41 of cylinder body 42 as shown in example diagram 12
There is the tilting rolling slideway 426 that upper relative superiority or inferiority is low, rolling element 45 is equipped in rolling slideway 426.
The structure of the functions such as there are many more one-way shaft shift lock mechanisms 44 replacement, for example, unidirectional contract block locks machine
Structure unidirectionally stirs locking mechanism etc. and can carry out the Pipelines with Single Direction Compensation function of length direction in floating-upward process to pile body.As long as energy
Piston body 41 and cylinder body 42 are realized under by opposing pulling force state, can make to generate axial monodisplacement between piston body and cylinder body
All schemes of function all belong to the scope of protection of the present invention.
Embodiment 4: length autocompensation installation 4 is arranged between pile jacking 1 and transition stake 3.
Embodiment 5: length autocompensation installation 4 is arranged between transition stake 3.
As one of special case of the invention, two section stakes of the invention, by pile jacking 1, bottom stake 2 and 4 groups of length autocompensation installation
At between pile jacking 1 and bottom stake 2, the cylinder body 42 in length autocompensation installation 4 is fixed on the setting of length autocompensation installation 4
In bottom stake 2, piston body 41 is fixed on the bottom plate of pile jacking 1.
As the two of special case of the invention, single-unit stake of the present invention, it is made of pile jacking 1 and length autocompensation installation 4, long
The lower section of pile jacking 1 is arranged in degree autocompensation installation 4, piston body 41 and pile jacking 1 in pile jacking 1 and length autocompensation installation 4
Bottom plate is fixedly connected.
The present invention is applicable in pile-type: the common tubular pole of various diameters or side length, high-strength pipe pile；Solid plain
Square pile, high-strength solid square pile；Plain hollow side's Pi, high strength hollow square pile etc..
In the above-described embodiments, in length autocompensation installation 4 piston body 41 and cylinder body 42 respectively be correspondingly connected with pile body
Between the restriction for being fixedly connected with mode and being not limited to embodiment.
Claims (11)
1. a kind of concrete precast pile with axial length compensation function, it is characterized in that: certainly including concrete pile body and length
Dynamic compensation device (4), the concrete pile body are single-unit stake, two section stakes or more piece stake, length autocompensation installation (4) packet
Include piston body (41), cylinder body (42), limit screw (43) and one-way shaft shift lock mechanism (44), the one-way shaft shift lock
Mechanism (44) is arranged between piston body (41) and cylinder body (42), before one-way shaft shift lock mechanism (44) is in stress movement
In the state of, it is linked into an integrated entity between piston body (41) and cylinder body (42) by limit screw (43) axial restraint；Work as concrete-pile
When body is single-unit stake, the bottom of concrete pile body is arranged in length autocompensation installation (4), and piston body (41) is fixed on concrete
On pile body, when concrete pile body is two section stake being made of pile jacking (1) and bottom stake (2), length autocompensation installation (4) setting
Between pile jacking (1) and bottom stake (2), cylinder body (42) is fixed in bottom stake (2), and piston body (41) is fixed on pile jacking (1)；When mixed
Solidifying soil pile body is when including the more piece stake of pile jacking (1), bottom stake (2) and transition stake (3), and length autocompensation installation (4), which is arranged, to exist
Between pile jacking (1) and bottom stake (2), cylinder body (42) is fixed in bottom stake (2) or in transition stake (3), and piston body (41) was fixed on
It crosses on stake (3) or on pile jacking (1).
2. according to claim 1 with the concrete precast pile of axial length compensation function, it is characterized in that: the concrete
More piece stake includes a transition stake (3), and transition stake (3) setting is between pile jacking (1) and bottom stake (2), length autocompensation installation
(4) between bottom stake (2) and transition stake (3), the cylinder body (42) of the length autocompensation installation (4) is fixed on bottom stake for setting
(2) on, piston body (41) is fixed on transition stake (3).
3. according to claim 1 with the concrete precast pile of axial length compensation function, it is characterized in that: the concrete
More piece stake includes two or more transition stakes (3), and setting is long between pile jacking (1) and bottom stake (2) after transition stake (3) is connected in series
Autocompensation installation (4) setting is spent between bottom stake (2) and transition stake (3), the cylinder body of the length autocompensation installation (4)
(42) it is fixed in bottom stake (2), piston body (41) is fixed on transition stake (3)；Or length autocompensation installation (4) setting exists
Between two transition stakes (3), the cylinder body (42) of the length autocompensation installation (4) is fixed in the transition stake (3) of lower section, piston
Body (41) is fixed in the transition stake (3) of top.
4. according to claim 1,2 or 3 concrete precast pile with axial length compensation function, it is characterized in that: described
One-way shaft shift lock mechanism (44) includes unidirectional lock tongue (441), the two-way lock tongue (442), bullet being sleeved in piston body (41)
Spring (443), technique pin (444), be arranged unidirectional locked groove (422) on cooperation inner hole (421) medial surface of cylinder body (42) and pair
To locked groove (423), cooperation cylinder (411) axis of unidirectional lock tongue sliding slot (412) and two-way lock tongue sliding slot (413) along piston body (41)
To setting；Along unidirectional locked groove (422) and two-way locked groove (423) is axially arranged in the cooperation inner hole (421) of cylinder body (42), unidirectionally
The lower end surface of locked groove (422) is plane, and side is cambered surface or inclined-plane, and the cross sectional shape of two-way locked groove (423) is rectangle, one-way lock
The side at the lock end of tongue (441) is cambered surface or inclined-plane, and unidirectional lock tongue (441) is inserted into unidirectional lock tongue sliding slot (412), in list
Spring (443) are equipped between the tail portion and piston body (41) of lock tongue (441), it is sliding that two-way lock tongue (442) is inserted into two-way lock tongue
In slot (413), spring (443) are equipped between the tail portion and piston body (41) of two-way lock tongue (442), all unidirectional lock tongues
(441) with two-way lock tongue (442) by technique pin (444) limit in the piston body (41), all unidirectional lock tongues (441) and pair
It contracts within the outer face surface of cooperation cylinder (411) to the overhanging end of lock tongue (442), piston body (41) and unidirectional lock tongue
(441), the combination of two-way lock tongue (442), spring (443) and technique pin (444) is sleeved on the cooperation inner hole of cylinder body (42)
(421) it in, is connected between piston body (41) and cylinder body (42) by limit screw (43) axial restraint.
5. according to claim 4 with the concrete precast pile of axial length compensation function, it is characterized in that: described unidirectional
In axis shift lock mechanism (44), the axially spaced-apart along piston body (41) is equipped with N number of unidirectional lock tongue group and a two-way lock tongue group,
Each unidirectional lock tongue group is uniformly distributed two and more than two unidirectional lock tongues (441), two-way lock tongue in the circumferential direction of piston body (41)
Group is uniformly distributed two and more than two two-way lock tongues (442) along the circumferential direction of piston body (41).
6. according to claim 5 with the concrete precast pile of axial length compensation function, it is characterized in that: the one-way lock
Circumferential direction equally distributed two unidirectional lock tongues (441) of the tongue group along piston body (41), week of the two-way lock tongue group along piston body (41)
To equally distributed two two-way lock tongues (442), two-way lock tongue (442) is arranged in the lower section of unidirectional lock tongue (441).
7. according to claim 4 with the concrete precast pile of axial length compensation function, it is characterized in that: two-way lock tongue is sliding
Slot (413) is arranged in the lower section of unidirectional lock tongue sliding slot (412), in the setting of the unidirectional locked groove in top (422) of two-way locked groove (423)
Quantity is 0-3.
8. according to claim 1,2 or 3 concrete precast pile with axial length compensation function, it is characterized in that: described
One-way shaft shift lock mechanism (44) includes unidirectional lock tongue (441), two-way lock tongue (442), spring (443) and technique pin (444),
It is equipped with unidirectional lock tongue slot (414) and reversible lock glossal canal axially spacedly on the cooperation cylinder (411) of piston body (41)
(415), the upper surface of unidirectional lock tongue slot (414) is plane, and side is cambered surface or inclined-plane, the section shape of reversible lock glossal canal (415)
Shape is rectangle, and the side of the overhanging end of unidirectional lock tongue (441) is cambered surface or inclined-plane, axially spaced on the side wall of cylinder body (42)
Ground is equipped with one-way lock sliding slot (424) and reversible lock sliding slot (425), and unidirectional lock tongue (441) is inserted into one-way lock sliding slot (424),
Spring (443) are equipped between the tail portion and cylinder body (42) of unidirectional lock tongue (441), it is sliding that two-way lock tongue (442) is inserted into reversible lock
In slot (425), spring (443) are equipped between the tail portion and cylinder body (42) of two-way lock tongue (442), all unidirectional lock tongues (441)
It is installed in cylinder body (42) by technique pin (444) with two-way lock tongue (442), all unidirectional lock tongues (441) and two-way
The lock end of lock tongue (442) is contracted within the inner hole surface surface of cylinder body (42), is sleeved on cylinder body (42) in piston body (41)
Before cooperating inner hole (421), it is fixedly connected between piston body (41) and cylinder body (42) by axial limit screw (43).
9. according to claim 8 with the concrete precast pile of axial length compensation function, it is characterized in that: the one-way lock
Tongue group includes the two unidirectional lock tongues (441) symmetrical along the circumferential direction of cylinder body (42) cooperation inner hole, and two-way lock tongue group includes edge
Two two-way lock tongues (442) that cylinder body (42) cooperates the circumferential direction of inner hole symmetrical, two-way lock tongue (442) are arranged in unidirectional lock tongue
(441) lower section is 0-3 in the setting quantity of the unidirectional lock tongue slot in top (414) of reversible lock glossal canal (415).
10. according to claim 1,2 or 3 concrete precast pile with axial length compensation function, it is characterized in that: described
One-way shaft shift lock mechanism (44) include rotating lock tongue (445), two-way lock tongue (442), spring (443), technique pin (444) and
Technique mandrel (446), on the cooperation cylinder (411) of piston body (41) axially spacedly be equipped with unidirectional limiting slot (416) and
Reversible lock glossal canal (415), the upper surface of unidirectional limiting slot (416) are plane, and the cross sectional shape of reversible lock glossal canal (415) is square
Shape, the overhanging end of rotating lock tongue (445) be plane, and rotating lock tongue (445) is axially spaced along the inner hole side wall of cylinder body (42)
Setting, the lower end of rotating lock tongue (445) and the inner hole side wall of cylinder body (42) are hinged, the upper section and cylinder body of rotating lock tongue (445)
(42) spring (443) are equipped between, are horizontally equipped with reversible lock sliding slot (425) on cylinder body (42), reversible lock sliding slot (425) is set
The top in rotating lock tongue (445) is set, two-way lock tongue (442) is inserted into reversible lock sliding slot (425), in two-way lock tongue (442)
Tail portion and cylinder body (42) between be equipped with spring (443), all rotating lock tongues (445) by technique mandrel (446) limit exists
In cylinder body (42), two-way lock tongue (442) is installed in cylinder body (42) by technique pin (444), in piston set body (41)
When by technique mandrel (446) compressing rotating lock tongue (445) and spring (443), when cooperating the bottom end of cylinder (411) to match with cylinder body
When the bottom surface of conjunction inner hole (421) is in contact, it is fixedly connected between piston body (41) and cylinder body (42) by axial limit screw (43).
11. according to claim 1,2 or 3 concrete precast pile with axial length compensation function, it is characterized in that: described
One-way shaft shift lock mechanism (44) is single roll locking mechanism, between the matching hole and piston body (41) of cylinder body (42)
It is evenly provided with the low tilting rolling slideway (426) of relative superiority or inferiority on cooperation section side wall, is equipped with and rolls in rolling slideway (426)
Body (45).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049959.7A CN109555113B (en) | 2019-01-18 | 2019-01-18 | Concrete precast pile with axial length compensation function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910049959.7A CN109555113B (en) | 2019-01-18 | 2019-01-18 | Concrete precast pile with axial length compensation function |
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| CN109555113A true CN109555113A (en) | 2019-04-02 |
| CN109555113B CN109555113B (en) | 2023-12-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB440140A (en) * | 1934-11-05 | 1935-12-20 | Josef Wohlmeyer | Improvements in and relating to apparatus for driving or withdrawing piles, stakes, or the like |
| US6390734B1 (en) * | 2001-01-04 | 2002-05-21 | Frederick S. Marshall | Method and apparatus for anchoring a piling to a slab foundation |
| CN106812137A (en) * | 2017-03-06 | 2017-06-09 | 广州市第三建筑工程有限公司 | A kind of quick pile extension device, prefabricated pile and preparation method thereof and pile extension method |
| CN210066720U (en) * | 2019-01-18 | 2020-02-14 | 吴洪林 | Concrete precast pile with axial length compensation function |
| JP7029869B1 (en) * | 2021-06-09 | 2022-03-04 | 浙大城市学院 | Combination pile for foundation work |
-
2019
- 2019-01-18 CN CN201910049959.7A patent/CN109555113B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB440140A (en) * | 1934-11-05 | 1935-12-20 | Josef Wohlmeyer | Improvements in and relating to apparatus for driving or withdrawing piles, stakes, or the like |
| US6390734B1 (en) * | 2001-01-04 | 2002-05-21 | Frederick S. Marshall | Method and apparatus for anchoring a piling to a slab foundation |
| CN106812137A (en) * | 2017-03-06 | 2017-06-09 | 广州市第三建筑工程有限公司 | A kind of quick pile extension device, prefabricated pile and preparation method thereof and pile extension method |
| CN210066720U (en) * | 2019-01-18 | 2020-02-14 | 吴洪林 | Concrete precast pile with axial length compensation function |
| JP7029869B1 (en) * | 2021-06-09 | 2022-03-04 | 浙大城市学院 | Combination pile for foundation work |
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| Publication number | Publication date |
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| CN109555113B (en) | 2023-12-08 |
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