CN108342984A - A kind of beach soft foundation trestle and its installation sedimentation method - Google Patents
A kind of beach soft foundation trestle and its installation sedimentation method Download PDFInfo
- Publication number
- CN108342984A CN108342984A CN201810036364.3A CN201810036364A CN108342984A CN 108342984 A CN108342984 A CN 108342984A CN 201810036364 A CN201810036364 A CN 201810036364A CN 108342984 A CN108342984 A CN 108342984A
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- China
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- steel
- pipe pile
- floorings
- soft foundation
- trestle
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/20—Placing by pressure or pulling power
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Foundations (AREA)
- Piles And Underground Anchors (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of beach soft foundation trestle and its installation sedimentation methods, it is related to field of bridge construction, the device includes the more steel-pipe piles being inserted in ground, the steel-pipe pile top surface is disposed with distribution beam, Bailey beam and floorings from lower to upper, the steel-pipe pile is equipped with back-pressure bearing support in the both sides of direction across bridge, and the back-pressure bearing support is equipped with the jack that top surface is held in the distribution beam bottom surface.The present invention can realize the settlement treatment to steel-pipe pile.
Description
Technical field
The present invention relates to field of bridge construction, and in particular to a kind of beach soft foundation trestle and a kind of beach soft foundation
The installation sedimentation method of trestle.
Background technology
In large bridges construction, it is often necessary to temporary trestle bridge is built, while after the completion of trestle is built, it need to be to trestle
Steel-pipe pile carry out settlement treatment.In the construction of beach soft foundation trestle, influenced by beach weakness landform, to this ground
Under trestle steel pipe pile sedimentation usually using piling machine again inserting piling steel-pipe pile, and to steel-pipe pile carry out concreting with
Increase the bearing capacity of steel-pipe pile, though the sedimentation of steel-pipe pile can be effectively prevent, trestle construction cost can be caused to increase, and the later stage
The dismounting of trestle is not easy.
Invention content
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of beach soft foundation trestle, energy
Enough settlement treatments realized to steel-pipe pile.
To achieve the above objectives, the technical solution adopted by the present invention is that：The steel-pipe pile being inserted in ground including more, institute
It states steel-pipe pile top surface and is disposed with distribution beam, Bailey beam and floorings from lower to upper, the steel-pipe pile is in the both sides of direction across bridge
Equipped with back-pressure bearing support, the back-pressure bearing support is equipped with the jack that top surface is held in the distribution beam bottom surface.
Based on the above technical solution, 2 back-pressure bearing supports, and 2 back-pressure bearings are equipped on every steel-pipe pile
Frame is symmetrical arranged along the longitudinal center line of the steel-pipe pile.
Based on the above technical solution, the back-pressure bearing support includes cross bar and brace, and one end of the brace connects
The one end of the cross bar far from steel-pipe pile, other end joint steel pipe stake are connect, the jack is located on the cross bar.
Based on the above technical solution, the both sides of the floorings are equipped with railing.
Based on the above technical solution, the top surface of the steel-pipe pile is equipped with steel-pipe pile pile cover.
The present invention also provides a kind of installation sedimentation methods of beach soft foundation trestle, including：
Setting-out steel-pipe pile；
Inserting piling steel-pipe pile, and distribution beam, Bailey beam and floorings are installed on steel-pipe pile, back-pressure branch is installed in steel-pipe pile side
Bolster and jack；
Load progress ballast is placed on floorings makes steel-pipe pile sink down into predetermined depth, while jack jacks distribution beam
Floorings are made to rise to preset height；
Backing plate is placed between steel-pipe pile top surface and distribution beam.
Based on the above technical solution, load weight is successively increased on floorings, and classification pressure is carried out to floorings
Weight, and the floorings lane load that ballast total amount is 1.25 times.
Based on the above technical solution, the top surface of the steel-pipe pile is equipped with steel-pipe pile pile cover, and the backing plate is positioned over
On the steel-pipe pile pile cover.
Based on the above technical solution, the back-pressure bearing support is welded on the steel-pipe pile side.
Compared with the prior art, the advantages of the present invention are as follows：The mode of load is placed on floorings to trestle ballast, is made
Steel-pipe pile sinks down into settling position, the settlement treatment to steel-pipe pile is realized, and jack jacks distribution beam, after sedimentation is effectively ensured
The bearing capacity of steel-pipe pile reach design requirement, and ensure that floorings are located at design height, entire settlement treatment process operation is simple
Single, safety accelerates construction speed, and later stage trestle is relatively easy to remove, to reuse, to save construction cost, meets green
Construction requirement.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of beach soft foundation trestle of the present invention；
Fig. 2 is the schematic diagram of installation distribution beam, Bailey beam and floorings on steel-pipe pile；
Fig. 3 is the schematic diagram that back-pressure bearing support and jack are installed in steel-pipe pile side；
Fig. 4 is the schematic diagram placed load on floorings and carry out ballast.
In figure：1- steel-pipe piles, 2- distribution beams, 3- Bailey beams, 4- floorings, 5- back-pressure bearing supports, 6- jack, 7- are horizontal
Bar, 8- braces, 9- railings, 10- steel-pipe pile pile covers, 11- loads.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
Shown in Figure 1, the present invention provides a kind of beach soft foundation trestle, is installed on beach soft foundation, beach
Soft foundation soil property is softer, specifically, beach soft foundation trestle includes the more steel-pipe piles being inserted in ground 1, steel-pipe pile 1
Top surface is disposed with distribution beam 2, Bailey beam 3 and floorings 4 from lower to upper, and steel-pipe pile 1 is equipped with back-pressure in the both sides of direction across bridge
Bearing support 5 is laid with the jack 6 that top surface is held in 2 bottom surface of distribution beam on back-pressure bearing support 5, and jack 6 is for jacking institute
Distribution beam 2 is stated to place backing plate between 1 top surface of steel-pipe pile and distribution beam 2.
2 back-pressure bearing supports 5 are equipped on every steel-pipe pile 1, and 2 back-pressure bearing supports 5 are along the axial centre of steel-pipe pile 1
Line is symmetrical arranged.Back-pressure bearing support 5 includes cross bar 7 and brace 8, and one end of brace 8 connects the one end of cross bar 7 far from steel-pipe pile 1,
Other end joint steel pipe stake 1, jack 6 are located on cross bar 7, and brace 8, cross bar 7 and 1 three of steel-pipe pile form one and stablize right angle three
Angular structure, in order to preferably be supported to jack 6.The both sides of floorings 4 are equipped with railing 9, and the top surface of steel-pipe pile 1
Equipped with steel-pipe pile pile cover 10.
A kind of beach soft foundation trestle of the present invention, overall structure is simple, easy for assemble or unload, and reusable,
The construction cost of trestle can be reduced while improving trestle construction speed and effectively.
The installation that the present invention also provides a kind of for carrying out the beach soft foundation trestle of installation sedimentation to above-mentioned trestle is heavy
Drop method, including：
S1：Setting-out steel-pipe pile 1；
S2：Inserting piling steel-pipe pile 1 carries out the inserting piling of steel-pipe pile 1 in 1 design position of steel-pipe pile, and is installed on steel-pipe pile 1
Distribution beam 2, Bailey beam 3 and floorings 4, shown in Figure 2, back-pressure bearing support 5 and jack 6 are installed in 1 side of steel-pipe pile, referring to
Shown in Fig. 3.
S3：Shown in Figure 4, the progress ballast of load 11 is placed on floorings 4 makes steel-pipe pile 1 sink down into predetermined depth,
Jack 6, which jacks distribution beam 2, simultaneously makes floorings 4 rise to preset height, ensures bridge floor height.The present invention uses and first installs stack
The mode of bridge component, in load 11, steel-pipe pile 1 sinks, and the height of floorings 4 can also decline, therefore be jacked using jack 6
Floorings 4 make the height of floorings 4 maintain an equal level with design height, will occur certain distance between distribution beam 2 and steel-pipe pile 1 at this time
Interval.The progress synchronous to the jacking of distribution beam 2 with jack 6 of 11 ballast of load.
S4：Backing plate is placed between 1 top surface of steel-pipe pile and distribution beam 2, to make 2 frame of distribution beam on steel-pipe pile 1, or
Connect height to steel-pipe pile 1 makes steel-pipe pile 1 support distribution beam 2.
11 weight of load is successively increased on floorings 4, classification ballast is carried out to floorings 4, that is, use and gradually increase load
The mode of 11 weight carries out ballast, respectively 10%, 30%, 50%, 70% and 100% to floorings 4, and ballast total amount is
1.25 times of 4 lane load 11 of floorings.
The top surface of steel-pipe pile 1 is equipped with steel-pipe pile pile cover 10, and backing plate is positioned on steel-pipe pile pile cover 10.Back-pressure bearing support 5 welds
It is connected on 1 side of steel-pipe pile.
Back-pressure bearing support is arranged in the side of steel-pipe pile 1 in the installation sedimentation method of the beach soft foundation trestle of the present invention
5, and jack 6 is installed on back-pressure bearing support 5, the mode of load 11 is placed on floorings 4 to trestle ballast, makes steel-pipe pile
1 sinks down into settling position, the settlement treatment to steel-pipe pile 1 is realized, and jack 6 jacks distribution beam 2, after sedimentation is effectively ensured
The bearing capacity of steel-pipe pile 1 reaches design requirement, and ensures that floorings 4 are located at design height, entire settlement treatment process operation letter
Single, safety accelerates construction speed, and later stage trestle is relatively easy to remove, to reuse, to save construction cost, meets green
Construction requirement.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as the protection of the present invention
Within the scope of.The content not being described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (9)
1. a kind of beach soft foundation trestle, is installed on beach soft foundation, it is characterised in that：It is inserted in ground including more
In steel-pipe pile (1), steel-pipe pile (1) top surface is disposed with distribution beam (2), Bailey beam (3) and floorings from lower to upper
(4), the steel-pipe pile (1) is equipped with back-pressure bearing support (5) in the both sides of direction across bridge, and the back-pressure bearing support (5) is equipped with top surface
It is held in the jack (6) of the distribution beam (2) bottom surface.
2. a kind of beach soft foundation trestle as described in claim 1, it is characterised in that：It is equipped with 2 on every steel-pipe pile (1)
A back-pressure bearing support (5), and 2 back-pressure bearing supports (5) are symmetrical arranged along the longitudinal center line of the steel-pipe pile (1).
3. a kind of beach soft foundation trestle as described in claim 1, it is characterised in that：The back-pressure bearing support (5) includes
One end of cross bar (7) and brace (8), the brace (8) connects the one end of the cross bar (7) far from steel-pipe pile (1), and the other end connects
Steel-pipe pile (1) is connect, the jack (6) is located on the cross bar (7).
4. a kind of beach soft foundation trestle as described in claim 1, it is characterised in that：The both sides of the floorings (4) are set
There is railing (9).
5. a kind of beach soft foundation trestle as described in claim 1, it is characterised in that：The top surface of the steel-pipe pile (1) is set
There is steel-pipe pile pile cover (10).
6. a kind of installation sedimentation method of beach soft foundation trestle, which is characterized in that including：
Setting-out steel-pipe pile (1)；
Inserting piling steel-pipe pile (1), and distribution beam (2), Bailey beam (3) and floorings (4), steel-pipe pile (1) are installed on steel-pipe pile (1)
Side is installed by back-pressure bearing support (5) and jack (6)；
Load (11) progress ballast is placed on floorings (4) makes steel-pipe pile (1) sink down into predetermined depth, while jack (6)
Jacking distribution beam (2) makes floorings (4) rise to preset height；
Backing plate is placed between steel-pipe pile (1) top surface and distribution beam (2).
7. a kind of installation sedimentation method of beach soft foundation trestle as claimed in claim 6, it is characterised in that：In floorings
(4) load (11) weight is successively increased on, and classification ballast, and the floorings that ballast total amount is 1.25 times are carried out to floorings (4)
(4) lane load (11).
8. a kind of installation sedimentation method of beach soft foundation trestle as claimed in claim 6, it is characterised in that：The steel pipe
The top surface of stake (1) is equipped with steel-pipe pile pile cover (10), and the backing plate is positioned on the steel-pipe pile pile cover (10).
9. a kind of installation sedimentation method of beach soft foundation trestle as claimed in claim 6, it is characterised in that：The back-pressure
Bearing support (5) is welded on the steel-pipe pile (1) side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036364.3A CN108342984B (en) | 2018-01-15 | 2018-01-15 | Soft foundation trestle for mudflat and installation and sedimentation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810036364.3A CN108342984B (en) | 2018-01-15 | 2018-01-15 | Soft foundation trestle for mudflat and installation and sedimentation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108342984A true CN108342984A (en) | 2018-07-31 |
| CN108342984B CN108342984B (en) | 2020-08-04 |
Family
ID=62960678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810036364.3A Active CN108342984B (en) | 2018-01-15 | 2018-01-15 | Soft foundation trestle for mudflat and installation and sedimentation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108342984B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117051705A (en) * | 2023-08-07 | 2023-11-14 | 保利长大工程有限公司 | Trestle construction method for water area |
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| CN206722852U (en) * | 2017-05-05 | 2017-12-08 | 中铁十二局集团有限公司 | A kind of mobile inverted arch trestle of growing up for carrying inverted arch template |
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2018
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|---|---|---|---|---|
| KR101050824B1 (en) * | 2011-01-31 | 2011-07-20 | 혜림엔지니어링(주) | Pier constructing method for expanding using oscillator on brideg expanding of upper part over water |
| CN202401398U (en) * | 2011-12-13 | 2012-08-29 | 中铁十八局集团第三工程有限公司 | Construction steel pipe bailey beam support in soft foundation |
| CN202530367U (en) * | 2012-03-14 | 2012-11-14 | 中铁二十二局集团第一工程有限公司 | Deepwater complex geology foundation construction system |
| CN104294749A (en) * | 2014-08-13 | 2015-01-21 | 中国石油天然气集团公司 | Method for installing cylinder foundation trestle structure |
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| CN106284089A (en) * | 2016-08-31 | 2017-01-04 | 中铁大桥局集团有限公司 | A kind of steel trestle rapid constructing method |
| CN206722852U (en) * | 2017-05-05 | 2017-12-08 | 中铁十二局集团有限公司 | A kind of mobile inverted arch trestle of growing up for carrying inverted arch template |
| CN206706762U (en) * | 2017-05-12 | 2017-12-05 | 中国港湾工程有限责任公司 | Shellfish thunder steel trestle pile foundation construction positioning guiding rack |
| CN107142926A (en) * | 2017-06-12 | 2017-09-08 | 广西路建工程集团有限公司 | The supratectal steel trestle steel-pipe pile antiscour construction method of shallow water riverbed thickness erratic boulder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117051705A (en) * | 2023-08-07 | 2023-11-14 | 保利长大工程有限公司 | Trestle construction method for water area |
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| Publication number | Publication date |
|---|---|
| CN108342984B (en) | 2020-08-04 |
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