CN204530683U - A kind of pile making device ramming expansion CFG stake for spiral pore-forming - Google Patents
A kind of pile making device ramming expansion CFG stake for spiral pore-forming Download PDFInfo
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- CN204530683U CN204530683U CN201520245400.9U CN201520245400U CN204530683U CN 204530683 U CN204530683 U CN 204530683U CN 201520245400 U CN201520245400 U CN 201520245400U CN 204530683 U CN204530683 U CN 204530683U
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Abstract
The utility model discloses and a kind ofly ram the pile making device expanding CFG stake for spiral pore-forming, for solving existing CFG pile driving construction, to there is collapse hole, undergauge, underground water and bearing course at pile end weak and cause the problem of the high and pile body supporting capacity difference of technique failure, concrete disintegration, construction cost.The utility model comprises the casing mutually adaptive with stake holes, and described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance.The utility model can solve the generation got rid of underground water in stake holes in time, prevent undergauge simultaneously, improves the bearing capacity of pile body.
Description
Technical field
The utility model belongs to CFG stake technical field, is specifically related to a kind of pile making device ramming expansion CFG stake for spiral pore-forming.
Background technology
CFG stake is the abbreviation of English Cement Fly-ash Gravel, means CFG, is mixed by rubble, aggregate chips, sand, flyash mixed cement plus water, the variable intensity stake with some strength of making by various forming machinery.CFG stake is a kind of Low Intensity Concrete Piles, can make full use of the bearing capacity acting in conjunction of inter-pile soil, and can transmit load in deep foundation, has good technical skills and economic effect.
By adjustment cement mixing content and proportioning, its strength grade changes between C15-C25, is a kind of pile-type between rigid pile and flexible pile.CFG stake, together with inter-pile soil, forms CFG pile composite foundation co-operation by mattress layer, therefore can carry out engineering design according to composite foundation proterties and calculating.CFG stake generally need not calculate arrangement of reinforcement, and industrial waste flyash and aggregate chips can be utilized to make admixture, reduce further construction costs, and therefore, CFG stake has extremely strong practicality.
Such as application number be 201320732862.4 utility model patent disclose a kind of spiral pump pressure CFG stake, comprise CFG pile body, CFG pile body be provided with block, block be provided with sandy gravel stratum, above sandy gravel stratum, be provided with ground; Sandy gravel stratum thickness is 0.5 ~ 3m.
CFG pile constructing process mainly comprises the following steps:
1, stake machine enters scene, according to designing pile length, immersed tube embedded depth determination bracket height and immersed tube length, and carries out device assembles;
2, pile-forming machine perching, adjustment immersed tube is perpendicular to the ground, guarantees that perpendicularity deviation meets technological requirement (generally perpendicularity deviation is not more than 1%);
3, starter, immersed tube, to predetermined absolute altitude, is shut down;
4, make a record in immersed tube process, the electric current often on heavy 1m recording ammeter once, and to soil layer change place to explanation;
5, immediately to concrete perfusion in pipe after shutting down, until concrete is concordant with charging aperture, after pile, laitance thickness is no more than 10cm and is advisable;
6, starter, vibration staying 5-10s, start tube drawing, pipe-drawn speed is generally 1.2-1.5m/min, and as mud or mucky soil, pipe-drawn speed also should slow down, and does not allow anti-plug in tube drawing process; As material loading is not enough, must feed intake in the air in tube drawing process, to ensure after pile that top mark is up to designing requirement;
7, ground extracted by immersed tube, after confirming that pile composite design requires, binds with granular materials or wet cohesive soil.
But existing CFG stake also exists following technical problem:
1, underground water cannot be discharged in time, thus affects pile quality;
2, in the process of immersed tube, due to the change of earth formation, easily there is undergauge phenomenon;
3, aggregate is in launch process, and do not carry out tamping the problem easily occurring sinking, particularly for the stratum that bottom quality is softer, after pile under the effect of load, pile bearing capacity is poor.
Utility model content
The utility model discloses a kind of pile making device ramming expansion CFG stake for spiral pore-forming, for solving existing CFG pile driving construction, to there is collapse hole, undergauge, underground water and bearing course at pile end weak and cause the problem of the high and pile body supporting capacity difference of technique failure, concrete disintegration, construction cost, and a kind of pile making device expanding CFG stake that rams for spiral pore-forming is provided, underground water in stake holes can be discharged in time, ensure the quality of pile; There is the effect of gauge, prevent the appearance of undergauge phenomenon; The intensity of bottom can be improved simultaneously, improve the supporting capacity of CFG stake.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of pile making device ramming expansion CFG stake for spiral pore-forming, it is characterized in that, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, be arranged with interior rammer cylinder in described casing, there is between the outer wall of described interior rammer cylinder and the inwall of casing the gap for draining; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance.Lifting appliance is used for extracting and putting down interior rammer cylinder, thus realizes the object of compacting.
The length of described interior rammer cylinder is greater than the length of casing.
The length of described casing is identical with the length of stake holes.
The upper top of described casing is provided with end cap, and the upper top of described interior rammer cylinder is provided with the end cap mutually adaptive with end cap.
Described lifting appliance is hoist engine.
Described lifting appliance is crane.
Compared with prior art, the utility model has following beneficial effect:
The pile making device ramming expansion CFG stake for spiral pore-forming of the present utility model, by arranging the undergauge problem that casing can prevent stake holes from causing due to the change of geologic structure, interior rammer cylinder is set in casing simultaneously, and the inner bottom part of interior rammer cylinder is provided with hammer ram, interior rammer cylinder and the bottom of hammer ram to stake holes can be utilized to tamp by lifting appliance, ensure drop into aggregate can compacting stake holes bottom and form enlarged footing, improve the compactness on stratum bottom stake holes, improve the supporting capacity of CFG stake simultaneously.
Simultaneously in the process of compacting, underground water is discharged in time by the gap between casing and interior rammer cylinder, thus improves the quality of pile.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model when preparing compacting;
Fig. 3 is the structural representation of the utility model in compacting process;
Fig. 4 is the structural representation after pile, namely completes the CFG pilework schematic diagram after compacting aggregate;
Mark in figure: 1, hammer ram, 2, interior rammer cylinder, 3, casing, 4, end cap, 5, end cap, 6, aggregate.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only the utility model part embodiment, is not whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection domain of the present utility model.
By reference to the accompanying drawings, the pile making device ramming expansion CFG stake for spiral pore-forming of the present utility model, comprise the casing 3 mutually adaptive with stake holes, described casing 3 is set in stake holes, be arranged with interior rammer cylinder 2 in described casing 3, there is between the outer wall of described interior rammer cylinder 2 and the inwall of casing 3 gap for draining; The inner bottom part of described interior rammer cylinder 2 is provided with hammer ram 1, and the top of described interior rammer cylinder 2 is connected with the lifting appliance for promoting and put down interior rammer cylinder.
The pile making device ramming expansion CFG stake for spiral pore-forming of the present utility model, by arranging the undergauge problem that casing can prevent stake holes from causing due to the change of geologic structure, interior rammer cylinder is set in casing simultaneously, and the inner bottom part of interior rammer cylinder is provided with hammer ram, interior rammer cylinder and the bottom stratum of hammer ram to stake holes can be utilized to tamp by lifting appliance, ensure that the aggregate that drops into can the bottom of compacting stake holes, improve the compactness bottom stake holes, improve the supporting capacity of CFG stake.
Simultaneously in the process of compacting, underground water is discharged in time by the gap between casing and interior rammer cylinder, thus improves the quality of pile.
In order to ensure that interior rammer cylinder can tamp the effect of aggregate 6, the length of described interior rammer cylinder 2 is greater than the length of casing 3.
Preferably, the length of casing 3 of the present utility model is identical with the length of stake holes.
For the ease of sinking casing 3 and extract casing 3, the upper top of described casing 3 is provided with end cap 4, simultaneously, the upper top of interior rammer cylinder 2 of the present utility model is provided with the mutually adaptive end cap 5 of end cap 4, namely end cap 5 is convenient to interior rammer cylinder and is connected with outside lifting appliance, also by the spacing between end cap 5 and end cap 4, the distance that cylinder 2 sinks in judging, can be rammed simultaneously.Interior rammer cylinder 2 of the present utility model is in the process of compacting simultaneously, by the contact of end cap 5 with end cap 4, can be pressed in stake holes by casing 3, reduces the operation be pressed into by casing 3 separately in stake holes, increases work efficiency.
Preferably, in order to reduce the rigid contact between end cap and end cap, cushion coat can be set on end cap and end cap.
As the mode of a kind of selection of the utility model, lifting appliance is hoist engine or crane, the device that lifting appliance also can have castering action for other, and do not repeat them here, those skilled in the art can understand and understand, and does not repeat them here.
The implementation step of the CFG stake that the utility model relates to is:
(1), stake position is arranged: the number determining CFG stake in construction area, and the position distribution determining CFG stake;
(2), stake holes is bored: spiral drilling machine is in place, starter, and auger boring is shut down after predetermined absolute altitude, extracts auger stem;
(3), casing, interior rammer cylinder and hammer ram are installed to tamp at the bottom of hole: described casing is set in stake holes, and described interior rammer jacket casing is located in casing, has the gap for draining between described interior rammer cylinder and casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the length of described casing is identical with the degree of depth of stake holes, and the length of described interior rammer cylinder is greater than the length of casing; The upper end of described interior rammer cylinder is connected with lifting appliance; Ram cylinder in lifting appliance drives to tamp bottom stake holes, casing is sunk to bottom stake holes and by the underground water in stake holes simultaneously and squeeze out between casing and interior rammer cylinder;
(4), aggregate is thrown in;
(5), form enlarged footing at the bottom of hole: promote casing, insert the interior rammer cylinder containing hammer ram, by lifting appliance to tamping at the bottom of stake holes hole and forming enlarged footing at the bottom of hole;
(6), pour into: by being lifted out outside stake holes containing ramming cylinder in weight, in stake holes, pour into prefabricated concrete;
(7), vibration compacting concrete completes the cast of pile body: by inserting vibrating head, concrete vibrating is closely knit, until concreting is to predetermined absolute altitude, in the process of vibration compacting, promotes casing simultaneously.
After completing cast, whether inspection pile body meets the requirements, and arranges mattress layer above pile body, for a person skilled in the art, can understand and understand, do not repeat them here.
Embodiment one
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance.
Embodiment two
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing.
Embodiment three
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing; The length of described casing is identical with the length of stake holes.
Embodiment four
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing; The length of described casing is identical with the length of stake holes; The upper top of described casing is provided with end cap, and the upper top of described interior rammer cylinder is provided with the mutually adaptive end cap of end cap.
Embodiment five
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing; The length of described casing is identical with the length of stake holes; The upper top of described casing is provided with end cap, and the upper top of described interior rammer cylinder is provided with the mutually adaptive end cap of end cap; Described lifting appliance is hoist engine.
Embodiment six
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing; The length of described casing is identical with the length of stake holes; The upper top of described casing is provided with end cap, and the upper top of described interior rammer cylinder is provided with the mutually adaptive end cap of end cap, and described lifting appliance is crane.
Embodiment seven
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance, and lifting appliance is crane.
Embodiment eight
The pile making device ramming expansion CFG stake for spiral pore-forming of the present embodiment, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, is arranged with interior rammer cylinder in described casing, has the gap for draining between the outer wall of described interior rammer cylinder and the inwall of casing; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance; The length of described interior rammer cylinder is greater than the length of casing, and lifting appliance is hoist engine.
Claims (4)
1. one kind is rammed the pile making device expanding CFG stake for spiral pore-forming, it is characterized in that, comprise the casing mutually adaptive with stake holes, described casing is set in stake holes, be arranged with interior rammer cylinder in described casing, there is between the outer wall of described interior rammer cylinder and the inwall of casing the gap for draining; The inner bottom part of described interior rammer cylinder is provided with hammer ram, and the top of described interior rammer cylinder is connected with outside lifting appliance.
2. the pile making device ramming expansion CFG stake for spiral pore-forming according to claim 1, it is characterized in that, the length of described interior rammer cylinder is greater than the length of casing.
3. the pile making device ramming expansion CFG stake for spiral pore-forming according to claim 1, it is characterized in that, the length of described casing is identical with the length of stake holes.
4., according to the arbitrary described pile making device ramming expansion CFG stake for spiral pore-forming of claim 1-3, it is characterized in that, the upper top of described casing is provided with end cap, and the upper top of described interior rammer cylinder is provided with the end cap mutually adaptive with end cap.
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| CN201520245400.9U CN204530683U (en) | 2015-04-22 | 2015-04-22 | A kind of pile making device ramming expansion CFG stake for spiral pore-forming |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021469A1 (en) * | 2020-07-30 | 2022-02-03 | 陕西龙海新创基础工程有限公司 | Method for constructing pipeline sinking rammed and expanded cast-in-situ pile in sand or gravel layer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022021469A1 (en) * | 2020-07-30 | 2022-02-03 | 陕西龙海新创基础工程有限公司 | Method for constructing pipeline sinking rammed and expanded cast-in-situ pile in sand or gravel layer |
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