CN211498835U - Pile forming device for cast-in-situ concrete hollow cast-in-place pile - Google Patents

Pile forming device for cast-in-situ concrete hollow cast-in-place pile Download PDF

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Publication number
CN211498835U
CN211498835U CN201922353271.6U CN201922353271U CN211498835U CN 211498835 U CN211498835 U CN 211498835U CN 201922353271 U CN201922353271 U CN 201922353271U CN 211498835 U CN211498835 U CN 211498835U
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Prior art keywords
pipe
pile
piling
pile driving
cast
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CN201922353271.6U
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邢腾文
邢轩玮
邢占东
岳霞
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Shandong Weijian Geotechnical Co ltd
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Shandong Weijian Geotechnical Co ltd
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Abstract

The utility model provides a cast-in-place concrete hollow cast-in-place pile forming device. It includes first pile driving hammer, first pile driving pipe, second pile driving hammer and second pile driving pipe, wherein: the first pile driving hammer is provided with a hydraulic clamp, and the lower end of the first pile driving hammer is connected with a first pile driving pipe; a hydraulic tightening device is arranged in the second piling hammer, and the lower end of the second piling hammer is connected with a second piling pipe; the first piling pipe is arranged in the second piling pipe, and a gap is formed between the first piling pipe and the second piling pipe; the lower end of the second piling pipe is provided with a valve which can be contacted with the outer wall of the first piling pipe; the second pile driving pipe is connected with a concrete pump through a pipeline. The construction reinforcing bars of the support pile are reduced, concrete is saved, and steel can be reduced.

Description

Pile forming device for cast-in-situ concrete hollow cast-in-place pile
Technical Field
The utility model relates to a bored concrete pile, concretely relates to cast-in-place concrete hollow bored concrete pile becomes stake device belongs to house building construction engineering, municipal infrastructure engineering's pile foundation and excavation supporting engineering technical field.
Background
The existing pile has a precast pile and a cast-in-situ concrete cast-in-place pile, the precast pile has a precast square pile, a precast tubular pile and a precast hollow square pile, and the cast-in-situ concrete cast-in-place pile is mostly a solid cylindrical pile.
The prefabricated pile body has reliable quality, high construction speed and common market application, and although the prefabricated pipe pile and the prefabricated hollow square pile can save concrete with certain quality, the cost of production link, transportation cost and hoisting cost are increased due to factory manufacturing, so that the total cost of the engineering pile is higher and the unit price of the pile is higher.
The cast-in-situ concrete cast-in-place pile is widely applied, although the cast-in-place pile has lower cost per unit, the concrete is greatly wasted due to the stress property of the cast-in-situ concrete cast-in-place pile, particularly when the cast-in-place pile is used for foundation pit support, the cast-in-place concrete cast-in-place pile mainly resists bending moment, the concrete used for calculating the stress is only 1/4 parts on the periphery, and the concrete of the centroid part is wasted.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a pile forming device for cast-in-place concrete hollow cast-in-place piles.
The utility model discloses a realize above-mentioned purpose, realize through following technical scheme:
a pile-forming device for cast-in-place concrete hollow cast-in-place piles comprises a first pile-driving hammer, a first pile-driving pipe, a second pile-driving hammer and a second pile-driving pipe, wherein:
the first pile driving hammer is provided with a hydraulic clamp, and the lower end of the first pile driving hammer is connected with a first pile driving pipe;
a hydraulic tightening device is arranged in the second piling hammer, and the lower end of the second piling hammer is connected with a second piling pipe;
the first piling pipe is arranged in the second piling pipe, and a gap is formed between the first piling pipe and the second piling pipe;
the lower end of the second piling pipe is provided with a valve which can be contacted with the outer wall of the first piling pipe;
the second pile driving pipe is connected with a concrete pump through a pipeline, and the sections of the first pile driving pipe and the second pile driving pipe are circular or square.
In the preferable scheme of the pile forming device of the cast-in-place concrete hollow cast-in-place pile, the inner diameter of the second pile driving pipe is larger than the outer diameter of the first pile driving pipe, and the length of the second pile driving pipe is smaller than that of the first pile driving pipe.
The preferable scheme of the pile forming device of the cast-in-place concrete hollow cast-in-place pile is that the first pile driving pipe and the second pile driving pipe are coaxially arranged.
The utility model has the advantages that: the structure is simple, the use is convenient, the calculation of the bending resistance bearing capacity is facilitated, the structural reinforcement of the support pile is reduced, the concrete is saved, and the steel can be reduced.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a schematic front view of embodiment 1 of the present invention.
FIG. 2 is a schematic front view of a cast-in-situ concrete hollow cast-in-place pile.
FIG. 3 is a schematic top view of a cast-in-situ concrete hollow cast-in-place pile.
In the figure, 1, a first pile driving hammer, 2, a hydraulic clamp, 3, a hydraulic tightening device, 4, a second pile driving hammer, 5, a first pile driving pipe, 6, a second pile driving pipe, 7, a valve and 8, a concrete pump are arranged.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate directions
The positional or positional relationships are based on the orientations and positional relationships shown in the drawings and are merely for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
A pile forming device of cast-in-place concrete hollow cast-in-place pile comprises a first pile driving hammer 1, a first pile driving pipe 5, a second pile driving hammer 4 and a second pile driving pipe 6, wherein:
the first pile driving hammer 1 is provided with a hydraulic clamp 2, and the lower end of the first pile driving hammer 1 is connected with a first pile driving pipe 5;
a hydraulic locking device 3 is arranged in the second piling hammer 4, and the lower end of the second piling hammer 4 is connected with a second piling pipe 6;
the first piling tube 5 is arranged in the second piling tube 6, and a gap is formed between the first piling tube 5 and the second piling tube 6;
the lower end of the second piling pipe 6 is provided with a valve 7, and the valve 7 can be contacted with the outer wall of the first piling pipe 5;
the second piling tube 6 is connected with a concrete pump 8 through a pipeline, and the sections of the first piling tube 5 and the second piling tube 4 are circular or square.
In this embodiment, the inner diameter of the second piling tube 6 is larger than the outer diameter of the first piling tube 5, and the length of the second piling tube 6 is smaller than the length of the first piling tube 5.
In this embodiment, the first piling tube 5 and the second piling tube 6 are coaxially disposed.
A cast-in-place concrete hollow cast-in-place pile construction method comprises the following steps:
(1) a first pile driving hammer 1 is arranged on a pile driving frame of the pile driver, the lower end of the first pile driving hammer 1 is connected with a first pile driving pipe 5 through a hydraulic clamp 2, and the pile driver is of a three-pivot walking type or a three-pivot crawler type;
(2) a second pile driving hammer 4 is arranged below the first pile driving hammer 1, and the lower end of the second pile driving hammer 4 is connected with a second pile driving pipe 6;
(3) the first pile driving pipe 5 passes through the second pile driving hammer 4 and the second pile driving pipe 6 and partially extends out of the second pile driving pipe 6;
(4) closing a valve, and controlling a hydraulic tightening device 3 of the second piling hammer 4 to tightly hold the first piling pipe 5, so that the first piling hammer 1, the first piling pipe 5, the second piling hammer 4 and the second piling pipe 6 are integrated;
(5) the upper end of the second piling pipe 6 is connected with a concrete pump through a pipeline and is used for filling concrete into the gap between the first piling pipe 5 and the second piling pipe 6;
(6) the pile driver is in place, the first pile driving hammer 1 and the second pile driving hammer 4 are started to synchronously work together, and the first pile driving pipe 5 and the second pile driving pipe 6 are synchronously sunk into a preset position of a soil layer;
(7) loosening the hydraulic clamp 2 of the first pile driving hammer 1, lifting the first pile driving hammer 1 upwards, loosening the hydraulic fastener 3 of the second pile driving hammer 4, installing a prefabricated reinforcement cage in a gap between a first pile driving pipe 5 and a second pile driving pipe 6, moving the first pile driving hammer 1 downwards, and locking the first pile driving pipe 5 by the hydraulic clamp 2;
(8) starting a concrete pump to fill concrete into the gap between the first piling pipe 5 and the second piling pipe 6 through the pipeline;
(9) opening a valve at the lower end of the second pile driving pipe 6 to separate the valve from the first pile driving pipe 5, and starting the first pile driving hammer 1 to lift the first pile driving pipe 5 upwards;
(10) starting the second piling hammer 4, lifting the second piling pipe 6 upwards, and continuously filling concrete into the pile hole along with the lifting of the second piling pipe 6 until the concrete reaches a certain height;
(11) continuously lifting the first pile driving pipe 5 and the second pile driving pipe 6 upwards to enable the pile driving pipes to be completely separated from the soil layer, and forming a pile;
(12) and moving the pile driver to the next pile position, and repeating the procedures for construction.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (3)

1. A cast-in-place concrete hollow cast-in-place pile forming device is characterized by comprising a first pile driving hammer, a first pile driving pipe, a second pile driving hammer and a second pile driving pipe, wherein:
the first pile driving hammer is provided with a hydraulic clamp, and the lower end of the first pile driving hammer is connected with a first pile driving pipe;
the second pile driving hammer is of a hollow structure and is provided with a hydraulic tightening device, and the lower end of the second pile driving hammer is connected with a second pile driving pipe;
the first piling pipe is arranged in the second piling pipe, and a gap is formed between the first piling pipe and the second piling pipe;
the lower end of the second piling pipe is provided with a valve which can be contacted with the outer wall of the first piling pipe;
the second pile driving pipe is connected with a concrete pump through a pipeline, and the sections of the first pile driving pipe and the second pile driving pipe are circular or square.
2. The cast-in-place concrete hollow cast-in-place pile forming device of claim 1, which is characterized in that: the inner diameter of the second piling pipe is larger than the outer diameter of the first piling pipe, and the length of the second piling pipe is smaller than that of the first piling pipe.
3. The cast-in-place concrete hollow cast-in-place pile forming device according to claim 1 or 2, characterized in that: the first piling tube and the second piling tube are coaxially arranged.
CN201922353271.6U 2019-12-25 2019-12-25 Pile forming device for cast-in-situ concrete hollow cast-in-place pile Active CN211498835U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922353271.6U CN211498835U (en) 2019-12-25 2019-12-25 Pile forming device for cast-in-situ concrete hollow cast-in-place pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922353271.6U CN211498835U (en) 2019-12-25 2019-12-25 Pile forming device for cast-in-situ concrete hollow cast-in-place pile

Publications (1)

Publication Number Publication Date
CN211498835U true CN211498835U (en) 2020-09-15

Family

ID=72419152

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922353271.6U Active CN211498835U (en) 2019-12-25 2019-12-25 Pile forming device for cast-in-situ concrete hollow cast-in-place pile

Country Status (1)

Country Link
CN (1) CN211498835U (en)

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