CN112681333A - Foundation pit supporting structure of waterside bridge abutment foundation and construction method thereof - Google Patents
Foundation pit supporting structure of waterside bridge abutment foundation and construction method thereof Download PDFInfo
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- CN112681333A CN112681333A CN202011478009.5A CN202011478009A CN112681333A CN 112681333 A CN112681333 A CN 112681333A CN 202011478009 A CN202011478009 A CN 202011478009A CN 112681333 A CN112681333 A CN 112681333A
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Abstract
The invention discloses a foundation pit supporting structure of a waterside bridge abutment foundation and a construction method thereof, wherein a foundation pit is arranged at the bank side of a river and one side of the foundation pit is waterside, and the foundation pit supporting structure comprises: the fender post is buried in a foundation pit soil body and is arranged in a circle along the outer edge of the foundation pit; the supporting piles are arranged on the outer side face of the water-facing side of the fender post, the lower parts of the supporting piles are buried in a river bed, and the upper parts of the supporting piles abut against the outer side face of the water-facing side of the fender post; the anchoring pile is embedded in the soil body on the inner side of the fender post; and the tie beam stretches across the upper part of the waterside side of the fender pile, and two ends of the tie beam are respectively connected with the anchoring pile and the supporting pile. The invention solves the problem that the waterside side of the fender pile is easy to deform greatly when the existing waterside bridge pier is used for constructing the pile foundation.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a foundation pit supporting structure of a waterside bridge abutment foundation and a construction method thereof.
Background
Bridge pier abutment is needed to be arranged in the river channel and beside the river bank when the bridge crosses the river channel. When the width of the river channel is moderate, only bridge piers are arranged on the edge of the river bank. The bridge abutment construction needs the procedures of constructing a pile foundation, excavating a foundation pit of the pile foundation, pouring the bridge abutment and the like.
When the bridge abutment is located on the side of a river bank, one side of the bridge abutment is adjacent to water, and the three sides of the bridge abutment are soil, the construction of the bridge abutment faces the difficult problems of uneven site, wading excavation of a foundation pit and the like during pile foundation construction. The foundation pit fender pile is usually constructed firstly, the pile foundation is constructed after the ground is leveled, the foundation pit is excavated after the pile foundation is finished, and the pier foundation is poured after the foundation pit construction is finished. However, during the construction process, the construction machinery load and the concrete pump truck load of the pile foundation act on the backfill site at the inner side of the fender pile, so that the side of the fender pile facing water is prone to generate larger deformation towards the outer side of the foundation pit.
Disclosure of Invention
In order to overcome the defects in the prior art, the foundation pit supporting structure of the waterside bridge abutment foundation and the construction method thereof are provided so as to solve the problem that the waterside side of the fender pile is easy to deform greatly when the existing waterside bridge abutment construction pile foundation is constructed.
For realizing above-mentioned purpose, provide a foundation ditch supporting construction who faces water bridge pier foundation, the foundation ditch sets up in the river bank limit just one side of foundation ditch is faced water, and foundation ditch supporting construction includes:
the fender post is buried in a foundation pit soil body and is arranged in a circle along the outer edge of the foundation pit;
the supporting piles are arranged on the outer side face of the water-facing side of the fender post, the lower parts of the supporting piles are buried in a river bed, and the upper parts of the supporting piles abut against the outer side face of the water-facing side of the fender post;
the anchoring pile is embedded in the soil body on the inner side of the fender post;
and the tie beam stretches across the upper part of the waterside side of the fender pile, and two ends of the tie beam are respectively connected with the anchoring pile and the supporting pile.
Further, the fender pile is a steel sheet pile.
Furthermore, a first reinforcing beam is installed on the outer side face of the waterside side of the fender post, the first reinforcing beam is arranged along the length direction of the fender post, and the supporting post is abutted against the first reinforcing beam.
Furthermore, a second reinforcing beam is installed on the inner side face of the water side of the fender post, and the second reinforcing beam and the first reinforcing beam are arranged in the same direction.
Further, the first reinforcing beam is arranged at the upper part of the fender post.
Further, the second reinforcing beam is arranged in the middle of the fender post and located between the liquid level of the river and the river bed.
Further, the support pile is a steel section pile or a steel pipe pile.
The invention relates to a construction method of a foundation pit supporting structure of a waterside bridge abutment foundation, which comprises the following steps:
embedding guard piles in a foundation pit soil body of a waterside bridge abutment foundation, so that the guard piles are arranged in a circle along the outer edge of the foundation pit;
arranging a supporting pile on the outer side surface of the water-facing side of the fender post, burying the lower part of the supporting pile in a river bed, and enabling the upper part of the supporting pile to abut against the outer side surface of the water-facing side of the fender post;
embedding anchoring piles in soil body on the inner side of the fender post;
and arranging a tie beam above the waterside of the fender pile in a crossing manner, and respectively connecting two ends of the tie beam to the anchoring pile and the supporting pile.
The foundation pit supporting structure for the waterside bridge abutment foundation has the advantages that the supporting piles are embedded in the riverbed of the riverway, the supporting piles are supported on the upper portions of the retaining piles, the anchoring piles are embedded in the foundation pits of the pile foundation, and the supporting piles and the anchoring piles are tied by the tie beams, so that the stability and the lateral rigidity of the whole foundation pit supporting structure are greatly improved, and the waterside side of the retaining piles is prevented from being greatly deformed.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic structural view of a foundation pit supporting structure of a waterside bridge abutment foundation according to an embodiment of the present invention.
Fig. 2 is a top view of a foundation pit supporting structure of the waterside bridge abutment foundation according to the embodiment of the invention.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 is a schematic structural view of a foundation pit supporting structure of a waterside bridge abutment foundation according to an embodiment of the present invention, and fig. 2 is a top view of the foundation pit supporting structure of the waterside bridge abutment foundation according to the embodiment of the present invention.
Referring to fig. 1 and 2, a foundation pit of the foundation of the bridge abutment facing the water is arranged on the bank side of the river, one side of the foundation pit faces the water, and the other three side faces face the soil. The invention provides a foundation pit supporting structure of a waterside bridge abutment foundation, which comprises: fender pile 1, support pile 2, anchor pile 3 and drawknot beam 4.
The fender post 1 is buried underground in the foundation ditch soil body, and fender post 1 sets up the round along the outer edge of foundation ditch and is closed cyclic annular.
The supporting pile 2 is arranged on the outer side of the water side a of the fender post 1. The lower part of the support piles 2 is buried in the river bed 5. The upper part of the supporting pile is propped against the outer side surface of the waterside a of the fender pile 1.
The anchor piles 3 are embedded in the soil body inside the fender post 1.
The lashing beam 4 spans over the waterside a of the fender post 1. The two ends of the tie beam 4 are connected to the anchor pile 3 and the support pile, respectively.
According to the foundation pit supporting structure of the waterside bridge abutment foundation, the supporting piles are embedded in the riverbed of the riverway and supported on the upper portions of the retaining piles by the supporting piles, the anchoring piles are embedded in the foundation pits of the pile foundation, the bracing beams are tied on the supporting piles and the anchoring piles, and the supporting piles are used for resisting the outward deformation pressure of the retaining piles, so that the stability and the lateral rigidity of the whole foundation pit supporting structure are greatly improved, and the waterside side of the retaining piles is prevented from being greatly deformed.
In the present embodiment the fender pile 1 is a steel sheet pile. Specifically, the steel sheet piles are connected with one another to form an integral closed structure.
As a preferred embodiment, the outer side of the water-facing side a of the fender post 1 is provided with a first reinforcing beam. The first reinforcing beams are arranged in the length direction of the fender post 1. The support piles 2 abut against the first reinforcing beam.
And a second reinforcing beam is arranged on the inner side surface of the water side a of the fender post 1 and arranged in the same direction as the first reinforcing beam. The first reinforcing beam is arranged at the upper part of the fender post 1. The second reinforcing beam is arranged in the middle of the fender post 1 and is positioned between the river liquid level b and the river bed 5.
The first reinforcing beam and the second reinforcing beam further enhance the integrity and the lateral rigidity of the enclosure pile.
In this embodiment, the number of the supporting piles is many, and a plurality of supporting piles are arranged at intervals on the waterside side of the fender pile. The support pile 2 is a section steel pile or a steel pipe pile.
The invention provides a construction method of a foundation pit supporting structure of a waterside bridge abutment foundation, which comprises the following steps:
s1: the fender post 1 is buried underground in the foundation pit soil body of the waterside bridge pier foundation, so that the fender post 1 is provided with a circle along the outer edge of the foundation pit to form a closed structure.
Specifically, step S1 includes:
s11, burying the fender post 1 in the foundation pit soil body of the waterside bridge pier foundation, and enabling the fender post 1 to be provided with a circle along the outer edge of the foundation pit to form a closed annular structure.
And S12, after the fender post is closed to form a ring, installing a first reinforcing beam on the outer side surface of the fender post on the side close to the water, and installing a second reinforcing beam on the inner side surface of the fender post on the side close to the water.
The second reinforcing beam is arranged in the middle of the fender post 1 and is positioned between the river liquid level b and the river bed 5.
And after the first reinforcing beam and the second reinforcing beam are constructed, backfilling the pile foundation construction site, and flattening the pile foundation construction site.
S2: the outer side surface of the water side a of the fender post 1 is provided with a supporting post 2, the lower part of the supporting post 2 is buried in a river bed 5, and the upper part of the supporting post is abutted against the outer side surface of the water side a of the fender post 1.
Specifically, after the first reinforcing beam and the second reinforcing beam are constructed, the supporting pile 2 is arranged on the outer side surface of the waterside a of the fender pile 1, the lower portion of the supporting pile 2 is buried in the riverbed 5, and the upper portion of the supporting pile is abutted against one side, far away from the enclosure structure, of the first reinforcing beam on the outer side surface of the waterside a of the fender pile 1.
S3: and embedding anchoring piles 3 in soil body on the inner side of the fender post 1.
After the soil body on the inner side of the fender pile is backfilled and leveled, the anchor piles are embedded in the construction position of the pile foundation of the bridge pier close to water, and the anchor piles are arranged at certain intervals. The anchor piles are positioned corresponding to the support piles such that each pair of anchor pile and support pile is disposed inside and outside the waterside side of the fender pile, respectively.
S4: and (3) spanning the tie beam 4 above the waterside a of the fender post 1, and respectively connecting two ends of the tie beam 4 to the anchor pile 3 and the support pile.
After the construction of the anchor piles is finished, a tie beam is constructed above the waterside a of the fender pile 1, the tie beam stretches over the waterside a of the fender pile 1, and two ends of the tie beam are connected to the upper parts of the anchor piles 3 and the upper parts of the supporting piles to form the foundation pit supporting structure.
After the construction of the foundation pit supporting structure is completed, pile foundations of bridge abutments are sequentially constructed in the fender piles. And after the pile foundation construction is finished, dismantling the tie beam and removing the anchoring pile. After the anchoring pile is pulled out, a foundation pit is excavated, an inner support of the foundation pit is constructed, the foundation pit is excavated to the bottom of the foundation pit, a pile head is broken, reinforcing steel bars are bound, concrete is poured to form a foundation of a bridge pier, and finally the foundation pit is backfilled.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. The utility model provides a be close to excavation supporting construction of water bridge pier foundation, its characterized in that, foundation ditch set up in the river bank just one side of foundation ditch is close to water, and excavation supporting construction includes:
the fender post is buried in a foundation pit soil body and is arranged in a circle along the outer edge of the foundation pit;
the supporting piles are arranged on the outer side face of the water-facing side of the fender post, the lower parts of the supporting piles are buried in a river bed, and the upper parts of the supporting piles abut against the outer side face of the water-facing side of the fender post;
the anchoring pile is embedded in the soil body on the inner side of the fender post;
and the tie beam stretches across the upper part of the waterside side of the fender pile, and two ends of the tie beam are respectively connected with the anchoring pile and the supporting pile.
2. The foundation pit supporting structure of the waterside bridge abutment foundation of claim 1, wherein the fender pile is a steel sheet pile.
3. The foundation pit supporting structure for the waterside bridge pier foundation of claim 1, wherein a first reinforcing beam is installed on the outer side surface of the waterside side of the fender pile, the first reinforcing beam is arranged along the length direction of the fender pile, and the supporting pile abuts against the first reinforcing beam.
4. The foundation pit supporting structure of the waterside bridge pier foundation of claim 3, wherein a second reinforcing beam is installed on the inner side surface of the waterside side of the fender post, and the second reinforcing beam and the first reinforcing beam are arranged in the same direction.
5. The foundation pit supporting structure of waterside bridge abutment foundation of claim 4, wherein the first reinforcing beam is arranged on the upper portion of the fender pile.
6. The foundation pit supporting structure of the waterside bridge abutment foundation according to claim 5, wherein the second reinforcing beam is arranged in the middle of the fender post and between the river level and the river bed.
7. The foundation pit supporting structure of the waterside bridge abutment foundation according to claim 1, wherein the supporting pile is a steel section pile or a steel pipe pile.
8. A construction method of a foundation pit supporting structure of the waterside bridge abutment foundation as claimed in any one of claims 1-7, comprising the following steps:
embedding guard piles in a foundation pit soil body of a waterside bridge abutment foundation, so that the guard piles are arranged in a circle along the outer edge of the foundation pit;
arranging a supporting pile on the outer side surface of the water-facing side of the fender post, burying the lower part of the supporting pile in a river bed, and enabling the upper part of the supporting pile to abut against the outer side surface of the water-facing side of the fender post;
embedding anchoring piles in soil body on the inner side of the fender post;
and arranging a tie beam above the waterside of the fender pile in a crossing manner, and respectively connecting two ends of the tie beam to the anchoring pile and the supporting pile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478009.5A CN112681333B (en) | 2020-12-15 | 2020-12-15 | Foundation pit supporting structure of waterside bridge abutment foundation and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011478009.5A CN112681333B (en) | 2020-12-15 | 2020-12-15 | Foundation pit supporting structure of waterside bridge abutment foundation and construction method thereof |
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| Publication Number | Publication Date |
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| CN112681333A true CN112681333A (en) | 2021-04-20 |
| CN112681333B CN112681333B (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011478009.5A Active CN112681333B (en) | 2020-12-15 | 2020-12-15 | Foundation pit supporting structure of waterside bridge abutment foundation and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162362A (en) * | 2022-08-24 | 2022-10-11 | 襄工建设集团有限公司 | Construction method for shallow foundation reinforcement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090057708A (en) * | 2007-12-03 | 2009-06-08 | 주식회사 백산공영 | Bracing structure to use two rows pile |
| CN103590408A (en) * | 2013-11-25 | 2014-02-19 | 中国建筑股份有限公司 | Novel double-row pile beam vertical anchor supporting system and construction method thereof |
| CN105064376A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined type foundation pit supporting structure with multiple rows of piles |
| CN204959766U (en) * | 2015-09-08 | 2016-01-13 | 浙江省地矿勘察院 | Two portal formula supporting construction suitable for excavate foundation ditch on a large scale |
| CN108265725A (en) * | 2016-12-30 | 2018-07-10 | 北京市地质工程公司 | Drawknot stake supporting and the construction method of basement process |
| CN111236265A (en) * | 2020-03-24 | 2020-06-05 | 中建一局集团第三建筑有限公司 | Unilateral waterside bridge foundation pit supporting system and construction method thereof |
-
2020
- 2020-12-15 CN CN202011478009.5A patent/CN112681333B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090057708A (en) * | 2007-12-03 | 2009-06-08 | 주식회사 백산공영 | Bracing structure to use two rows pile |
| CN103590408A (en) * | 2013-11-25 | 2014-02-19 | 中国建筑股份有限公司 | Novel double-row pile beam vertical anchor supporting system and construction method thereof |
| CN105064376A (en) * | 2015-08-25 | 2015-11-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Combined type foundation pit supporting structure with multiple rows of piles |
| CN204959766U (en) * | 2015-09-08 | 2016-01-13 | 浙江省地矿勘察院 | Two portal formula supporting construction suitable for excavate foundation ditch on a large scale |
| CN108265725A (en) * | 2016-12-30 | 2018-07-10 | 北京市地质工程公司 | Drawknot stake supporting and the construction method of basement process |
| CN111236265A (en) * | 2020-03-24 | 2020-06-05 | 中建一局集团第三建筑有限公司 | Unilateral waterside bridge foundation pit supporting system and construction method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115162362A (en) * | 2022-08-24 | 2022-10-11 | 襄工建设集团有限公司 | Construction method for shallow foundation reinforcement |
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| CN112681333B (en) | 2022-07-12 |
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