CN112267486B - Steel pipe concrete anti-seismic bridge pile foundation and pile foundation construction method - Google Patents
Steel pipe concrete anti-seismic bridge pile foundation and pile foundation construction method Download PDFInfo
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- CN112267486B CN112267486B CN202010912333.7A CN202010912333A CN112267486B CN 112267486 B CN112267486 B CN 112267486B CN 202010912333 A CN202010912333 A CN 202010912333A CN 112267486 B CN112267486 B CN 112267486B
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
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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
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
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Abstract
The invention discloses a steel tube concrete anti-seismic bridge pile foundation and a pile foundation construction method, which comprises a fixed base, wherein a construction groove is arranged on one side surface of the fixed base, a supporting plastic cylinder is fixedly connected to the bottom surface of the construction groove, a concrete cylinder is fixedly poured on the other side surface of the supporting plastic cylinder, a positioning groove is arranged on the other end surface of the concrete cylinder, a steel tube is fixedly inserted and connected to the side surface of the concrete cylinder, one end of the steel tube is inserted and connected to the bottom of the construction groove, a positioning block is fixedly welded on the side surface of the steel tube, the side surface of the positioning block is inserted and connected to the side surface of the positioning groove, both sides of one end of the steel tube are provided with communication gaps, a concrete pile body is fixedly poured on the side surface of the steel tube, one end of the concrete pile body is poured and connected to the bottom surface of the construction groove, so that the high-efficiency convenience of construction can be greatly improved, the structural strength and the use safety of the pile foundation are ensured.
Description
Technical Field
The invention relates to the field of bridge pile foundations, in particular to a concrete filled steel tube anti-seismic bridge pile foundation and a pile foundation construction method.
Background
In the bridge construction process, for convenience of subsequent laying and construction safety, the pile foundation pouring construction is generally carried out firstly to form a stable supporting structure.
But current bridge pile foundation structure is direct inside the foundation ditch of pouring mostly, and is less with the combination area of bottom surface like this, and stability is not enough, can not consolidate the edgewise moreover, influences structural strength, also is unfavorable for the operation when using moreover, and later maintenance is troublesome, remains to propose a new structure and method.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a steel tube concrete anti-seismic bridge pile foundation and a pile foundation construction method.
In order to solve the above problems, the present invention adopts the following technical solutions.
A steel pipe concrete anti-seismic bridge pile foundation and a pile foundation construction method comprise a fixed base, wherein one side surface of the fixed base is provided with a construction groove, the bottom surface of the construction groove is fixedly connected with a supporting plastic cylinder, the other side surface of the supporting plastic cylinder is fixedly poured with a concrete cylinder, the other end surface of the concrete cylinder is provided with a positioning groove, the side surface of the concrete cylinder is fixedly inserted with a steel pipe, one end of the steel pipe is inserted at the bottom of the construction groove, a positioning block is fixedly welded on the side surface of the steel pipe, the side surface of the positioning block is inserted into the side surface of the positioning groove, both sides of one end of the steel pipe are provided with communicating notches, the communication opening is located at the bottom of the support plastic cylinder, a concrete pile body is fixedly poured on the side face of the steel pipe, and one end of the concrete pile body is connected to the bottom of the construction groove in a pouring mode.
Further, the surface of supporting the plastic cylinder is equipped with brokenly tears the round hole open, the side of brokenly tearing the round hole open cup joints in the surface of steel pipe, through support the plastic cylinder surface brokenly tear open and form brokenly tear the round hole open, can not influence the concrete cylinder and pour, also can not interfere the steel pipe hoist and mount simultaneously, does benefit to safe construction, and is convenient high-efficient.
Furthermore, the fixed backup pad of inlaying in unable adjustment base's side, the fixed welding in side of backup pad has the supporting shoe, through backup pad welding supporting shoe, can follow-up welding construction, avoids interfering the influence.
Furthermore, the other side fixed surface of supporting shoe is connected with slope anchor strut, the fixed welding of the other end of slope anchor strut has the arc, connects the arc through slope anchor strut, can weld the steel pipe surface, does benefit to auxiliary stay, improves structural stability.
Furthermore, the side of arc is fixed to be welded in the side of steel pipe, the equal angle evenly distributed of arc in the one end side of steel pipe.
Further, the surface of slope anchor strut is equipped with the arc recess, the fixed welding in side of arc recess has solid fixed ring, through solid fixed ring of arc recess welding, can connect the reinforcement to a plurality of slope anchor struts, guarantees overall structure intensity, improves the security of support.
Further, the fixed ring is located at the side position of the steel pipe, and the diameters of the fixed ring and the steel pipe are reduced from top to bottom in sequence.
Further, the other end fixedly connected with gag lever post and the stopper of backup pad, gag lever post and stopper are all fixed to be inlayed in unable adjustment base's inside, through connecting gag lever post and stopper in the backup pad bottom, guarantee to inlay the stability of location, avoid the pine to take off.
Further, the construction method comprises the following steps:
s1, excavating a foundation pit at the construction position, pouring to form a fixed base, pre-pouring a support plate to a fixed position, forming a construction groove during pouring, and maintaining and shaping;
s2, placing a supporting plastic cylinder at the bottom of the construction groove, pouring the supporting plastic cylinder on the surface to form a concrete cylinder, cutting the concrete cylinder to form a positioning groove before solidification, and maintaining and shaping;
s3, breaking and detaching the surface of the supporting plastic cylinder at the bottom of the concrete cylinder to form a breaking and detaching circular hole;
s4, inserting the hoisting steel pipe into the concrete cylinder, penetrating into the bottom of the construction groove through the breaking and dismantling circular hole, and clamping the positioning block into the positioning groove for positioning;
s5, welding the supporting block to the supporting plate, fixing the inclined reinforcing rod, aligning the arc-shaped plate at the other end to the surface of the steel pipe, welding and fixing to form a supporting frame, and righting and positioning;
s6, bending the steel bars to form a circular ring, positioning the circular ring inside the arc-shaped groove for welding and positioning, and connecting the inclined reinforcing rods to enhance the structural strength;
and S7, pouring concrete from the upper end of the steel pipe, filling the concrete into the construction groove from the bottom through the communication gap, detecting the concrete density, and solidifying and shaping to form the concrete pile body after the concrete is qualified.
Further, the step S7 of detecting the stringency by using an ultrasonic detection method.
Compared with the prior art, the invention has the advantages that:
(1) this scheme is pour earlier and is formed unable adjustment base, can enlarge bottom construction area of contact, guarantees stability, can not interfere the upper end construction simultaneously, and pours through the components of a whole that can function independently and form the fixed steel pipe of connection, does benefit to the installation of lifting by crane, combines backup pad and the slope anchor strut of side, does benefit to from the side auxiliary stay, improves structural strength.
(2) The broken round hole of tearing open through the broken formation of tearing open in support plastic cylinder surface can not influence the concrete cylinder and pour, also can not interfere the steel pipe hoist and mount simultaneously, does benefit to safe construction, and is convenient high-efficient.
(3) Through backup pad welding supporting shoe, can follow-up welding construction, avoid interfering the influence.
(4) The arc-shaped plate is connected through the inclined reinforcing rods, so that the surface of the steel pipe can be welded, auxiliary support is facilitated, and the structural stability is improved.
(5) Through the solid fixed ring of arc recess welding, can connect the reinforcement to a plurality of slope anchor strut, guarantee overall structure intensity, improve the security that supports.
(6) Through connecting gag lever post and stopper in backup pad bottom, guarantee to inlay the stability of location, avoid the pine to take off.
(7) By the aid of the split pouring construction method, orderly pouring and installation can be achieved, auxiliary reinforcement from the side face is facilitated, safety and high efficiency are achieved, and construction operation is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the locating block attachment of the present invention;
FIG. 3 is a schematic top cross-sectional view of a diagonal reinforcing bar connection of the present invention.
The reference numbers in the figures illustrate:
the concrete pile is characterized by comprising a fixing base 1, a construction groove 11, a supporting plastic cylinder 12, a concrete cylinder 13, a positioning groove 14, a steel pipe 15, a positioning block 16, a communication gap 17, a concrete pile body 18, a breaking and dismantling circular hole 19, a supporting plate 2, a supporting block 21, an inclined reinforcing rod 22, an arc plate 23, an arc groove 24, a fixing ring 25, a limiting rod 26 and a limiting block 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Referring to fig. 1-3, a steel pipe concrete anti-seismic bridge pile foundation and a pile foundation construction method include a fixed base 1, referring to fig. 1 and 2, a construction groove 11 is formed on one side surface of the fixed base 1, a support plastic cylinder 12 is fixedly connected to the bottom surface of the construction groove 11, a concrete cylinder 13 is fixedly poured on the other side surface of the support plastic cylinder 12, a positioning groove 14 is formed on the other end surface of the concrete cylinder 13, a steel pipe 15 is fixedly inserted into the side surface of the concrete cylinder 13, one end of the steel pipe 15 is inserted into the bottom of the construction groove 11, a positioning block 16 is fixedly welded to the side surface of the steel pipe 15, the side surface of the positioning block 16 is inserted into the side surface of the positioning groove 14, both sides of one end of the steel pipe 15 are provided with a communication gap 17 to facilitate the circulation of concrete and fill the inside of the construction groove 11, ensure the stability of the combination with the fixed base 1 and improve the overall structural strength, intercommunication opening 17 is located the bottom position that supports plastic cylinder 12, the side of steel pipe 15 is fixed to be pour concrete pile body 18, integrative pouring construction, guarantee structural stability, the one end pour of concrete pile body 18 is connected in construction recess 11's bottom surface position, the surface that supports plastic cylinder 12 is equipped with brokenly tears round hole 19 open, the surface in steel pipe 15 is cup jointed to the side of brokenly tearing open round hole 19 open, through broken the tearing open round hole 19 that forms open in support plastic cylinder 12 surface, can not influence concrete cylinder 13 and pour, also can not interfere steel pipe hoist and mount 15 simultaneously, do benefit to safe construction, and is convenient and efficient.
Referring to fig. 1 and 3, a supporting plate 2 is fixedly embedded in a side surface of a fixing base 1, a supporting block 21 is fixedly welded to the side surface of the supporting plate 2, the supporting block is welded through the supporting plate, subsequent welding construction can be performed, interference influence is avoided, an inclined reinforcing rod 22 is fixedly connected to the other side surface of the supporting block 21, an arc plate 23 is fixedly welded to the other end of the inclined reinforcing rod 22, the inclined reinforcing rod 22 is connected with the arc plate 23, the surface of a steel pipe 15 can be welded to the surface of the steel pipe, auxiliary supporting is facilitated, structural stability is improved, an arc groove 24 is formed in the surface of the inclined reinforcing rod 22, a fixing ring 25 is fixedly welded to the side surface of the arc groove 24, the fixing ring 25 is welded through the arc groove 24, a plurality of inclined reinforcing rods 23 can be connected and reinforced, overall structural strength is ensured, supporting safety is improved, a limiting rod 26 and a limiting block 27 are fixedly connected to the other end of the supporting plate 2, gag lever post 26 and stopper 27 are all fixed to be inlayed in unable adjustment base 1's inside, through connecting gag lever post 26 and stopper 27 in backup pad 2 bottoms, guarantee to inlay the stability of location, avoid the pine to take off.
The construction method comprises the following steps:
s1, excavating a foundation pit at the construction position, pouring to form a fixed base, pre-pouring a support plate to a fixed position, forming a construction groove during pouring, and maintaining and shaping;
s2, placing a supporting plastic cylinder at the bottom of the construction groove, pouring the supporting plastic cylinder on the surface to form a concrete cylinder, cutting the concrete cylinder to form a positioning groove before solidification, and maintaining and shaping;
s3, breaking and dismantling the surface of the support plastic cylinder at the bottom of the concrete cylinder to form a breaking and dismantling circular hole;
s4, inserting the hoisting steel pipe into the concrete cylinder, penetrating into the bottom of the construction groove through the breaking and dismantling circular hole, and clamping the positioning block into the positioning groove for positioning;
s5, welding the supporting block on the supporting plate, fixing the inclined reinforcing rod, aligning the arc-shaped plate at the other end to the surface of the steel pipe, welding and fixing to form a supporting frame, and righting and positioning;
s6, bending the steel bars to form a circular ring, positioning the circular ring inside the arc-shaped groove for welding and positioning, and connecting the inclined reinforcing rods to enhance the structural strength;
and S7, pouring concrete from the upper end of the steel pipe, filling the concrete into the construction groove from the bottom through the communication gap, detecting the concrete density, and solidifying and shaping to form the concrete pile body after the concrete is qualified.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (3)
1. The utility model provides a construction method of concrete filled steel tube antidetonation bridge pile foundation, concrete filled steel tube antidetonation bridge pile foundation includes unable adjustment base (1), its characterized in that: the concrete pile is characterized in that a construction groove (11) is formed in the surface of one side of the fixed base (1), a supporting plastic cylinder (12) is fixedly connected to the surface of the bottom of the construction groove (11), a concrete cylinder (13) is fixedly poured on the surface of the other side of the supporting plastic cylinder (12), a positioning groove (14) is formed in the surface of the other end of the concrete cylinder (13), a steel pipe (15) is fixedly inserted into the side surface of the concrete cylinder (13), one end of the steel pipe (15) is inserted into the bottom of the construction groove (11), a positioning block (16) is fixedly welded on the side surface of the steel pipe (15), the side surface of the positioning block (16) is inserted into the side surface of the positioning groove (14), communication notches (17) are formed in two sides of one end of the steel pipe (15), the communication notches (17) are located at the bottom of the supporting plastic cylinder (12), a concrete pile body (18) is fixedly poured on the side surface of the steel pipe (15), one end of the concrete pile body (18) is poured and connected to the bottom surface of the construction groove (11), the surface of the supporting plastic cylinder (12) is provided with a forcible entry round hole (19), the side surface of the forcible entry round hole (19) is sleeved on the surface of the steel pipe (15), a supporting plate (2) is fixedly embedded in the side surface of the fixed base (1), a supporting block (21) is fixedly welded on the side surface of the supporting plate (2), the other side surface of the supporting block (21) is fixedly connected with an inclined reinforcing rod (22), the other end of the inclined reinforcing rod (22) is fixedly welded with an arc-shaped plate (23), the side surface of the arc-shaped plate (23) is fixedly welded on the side surface of the steel pipe (15), the arc-shaped plates (23) are uniformly distributed on the side surface of one end of the steel pipe (15) at equal angles, the surface of the inclined reinforcing rod (22) is provided with an arc-shaped groove (24), and the side surface of the arc-shaped groove (24) is fixedly welded with a fixing ring (25);
the specific construction method comprises the following steps:
s1, excavating a foundation pit at the construction position, pouring to form a fixed base, pre-pouring a support plate to a fixed position, forming a construction groove during pouring, and maintaining and shaping;
s2, placing a supporting plastic cylinder at the bottom of the construction groove, pouring the supporting plastic cylinder on the surface to form a concrete cylinder, cutting the concrete cylinder to form a positioning groove before solidification, and maintaining and shaping the concrete cylinder;
s3, breaking and detaching the surface of the supporting plastic cylinder at the bottom of the concrete cylinder to form a breaking and detaching circular hole;
s4, inserting the hoisting steel pipe into the concrete cylinder, penetrating into the bottom of the construction groove through the breaking and dismantling circular hole, and clamping the positioning block into the positioning groove for positioning;
s5, welding the supporting block to the supporting plate, fixing the inclined reinforcing rod, aligning the arc-shaped plate at the other end to the surface of the steel pipe, welding and fixing to form a supporting frame, and righting and positioning;
s6, bending the steel bars to form a circular ring, positioning the circular ring inside the arc-shaped groove for welding and positioning, and connecting the inclined reinforcing rods to enhance the structural strength;
and S7, pouring concrete from the upper end of the steel pipe, enabling the bottom of the steel pipe to flow into the construction groove through the communication gap for filling, detecting the concrete density, solidifying and shaping after the concrete is qualified to form a concrete pile body, and using an ultrasonic detection method for detecting the density.
2. The construction method of the steel tube concrete anti-seismic bridge pile foundation according to claim 1, characterized in that: the fixing rings (25) are located on the side face of the steel pipe (15), and the diameters of the fixing rings are reduced from top to bottom in sequence.
3. The construction method of the steel tube concrete anti-seismic bridge pile foundation according to claim 1, characterized in that: the other end fixedly connected with gag lever post (26) and stopper (27) of backup pad (2), gag lever post (26) and stopper (27) are all fixed to be inlayed in unable adjustment base's (1) inside.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010912333.7A CN112267486B (en) | 2020-09-02 | 2020-09-02 | Steel pipe concrete anti-seismic bridge pile foundation and pile foundation construction method |
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| CN202010912333.7A CN112267486B (en) | 2020-09-02 | 2020-09-02 | Steel pipe concrete anti-seismic bridge pile foundation and pile foundation construction method |
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| CN112267486A CN112267486A (en) | 2021-01-26 |
| CN112267486B true CN112267486B (en) | 2022-09-27 |
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| CN113622595B (en) * | 2021-10-07 | 2022-12-23 | 湖北梦想工厂建筑设计有限公司 | Anti-seismic pressure dividing device based on steel pipe concrete column for house design |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070104111A (en) * | 2006-04-21 | 2007-10-25 | 한국도로공사 | Bridge with pile and construction method thereof |
| CN202866304U (en) * | 2012-10-23 | 2013-04-10 | 中国核工业华兴建设有限公司 | Reverse-building-method steel pipe column bottom locating device |
| CN106088084A (en) * | 2016-07-13 | 2016-11-09 | 温州华路交通建设工程有限公司 | A kind of reinforcement protection device of bridge pile foundation |
| CN106245627A (en) * | 2016-08-30 | 2016-12-21 | 中铁三局集团有限公司 | A kind of quick positioning construction method of steel pipe stanchion |
| CN109024651A (en) * | 2018-07-24 | 2018-12-18 | 山西省交通科学研究院 | A kind of concrete filled steel tube mixing pile foundation and construction method |
| CN110158631A (en) * | 2019-06-17 | 2019-08-23 | 中交第三公路工程局有限公司 | A kind of Bridge Pile Foundation Construction method |
| CN210421082U (en) * | 2019-06-26 | 2020-04-28 | 王兵 | Bridge pile foundation reinforced structure |
-
2020
- 2020-09-02 CN CN202010912333.7A patent/CN112267486B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070104111A (en) * | 2006-04-21 | 2007-10-25 | 한국도로공사 | Bridge with pile and construction method thereof |
| CN202866304U (en) * | 2012-10-23 | 2013-04-10 | 中国核工业华兴建设有限公司 | Reverse-building-method steel pipe column bottom locating device |
| CN106088084A (en) * | 2016-07-13 | 2016-11-09 | 温州华路交通建设工程有限公司 | A kind of reinforcement protection device of bridge pile foundation |
| CN106245627A (en) * | 2016-08-30 | 2016-12-21 | 中铁三局集团有限公司 | A kind of quick positioning construction method of steel pipe stanchion |
| CN109024651A (en) * | 2018-07-24 | 2018-12-18 | 山西省交通科学研究院 | A kind of concrete filled steel tube mixing pile foundation and construction method |
| CN110158631A (en) * | 2019-06-17 | 2019-08-23 | 中交第三公路工程局有限公司 | A kind of Bridge Pile Foundation Construction method |
| CN210421082U (en) * | 2019-06-26 | 2020-04-28 | 王兵 | Bridge pile foundation reinforced structure |
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