CN108708284B - A kind of steel trestle construction method for resisting flood discharge bed scour - Google Patents

A kind of steel trestle construction method for resisting flood discharge bed scour Download PDF

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Publication number
CN108708284B
CN108708284B CN201810506336.3A CN201810506336A CN108708284B CN 108708284 B CN108708284 B CN 108708284B CN 201810506336 A CN201810506336 A CN 201810506336A CN 108708284 B CN108708284 B CN 108708284B
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China
Prior art keywords
steel
fashioned iron
tubular pole
iron tubular
trestle
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CN201810506336.3A
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Chinese (zh)
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CN108708284A (en
Inventor
李二伟
王英
刘建伟
郝云超
桂文才
冯小敏
徐旭升
邢闯锋
朱卫威
周成新
杨秀清
吕建源
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Survey and Design Research Institute of China Railway Seventh Group Co Ltd
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Survey and Design Research Institute of China Railway Seventh Group Co Ltd
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D21/00Methods or apparatus specially adapted for erecting or assembling bridges
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • E02D15/06Placing concrete under water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00Foundations as substructures
    • E02D27/10Deep foundations
    • E02D27/12Pile foundations
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22Piles
    • E02D5/34Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/40Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds in open water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/66Mould-pipes or other moulds
    • E02D5/665Mould-pipes or other moulds for making piles

Abstract

The invention discloses a kind of steel trestle construction method for resisting flood discharge bed scour, basis includes vertical bridge to spaced apart large and small steel-pipe pile, installation hood type connection system between adjacent direction across bridge steel-pipe pile;Small steel-pipe pile base opening inserting piling is embedded in distribution beam by stake top groove and trestle girder is closely connected to scar;After large steel pipe stake base opening inserting piling to scar, first interim bracket is welded to two sides along bridge in pile body, distribution beam is put again and trestle girder is closely connected, when trestle toward not less than 2 times holes of assembled length in front of row steel-pipe pile across when, percussive drill is set on the trestle girder of row's steel-pipe pile position, casing hole milling is done using large steel pipe stake and with proceeding to designed elevation in rock stratum, cut off interim bracket, again formal bracket is welded, it is concordant with trestle girder to cut large steel pipe stake top mouth, and forms anti-anchoring pile in large steel pipe stake lower end filling underwater concrete.Quick construction of the present invention, can quickly form channel waterborne, carry out anti-anchoring pile construction by land, operating environment is good, and capital investment is few.

Description

A kind of steel trestle construction method for resisting flood discharge bed scour
Technical field
The present invention relates to technical field of bridge construction, and flood discharge can be resisted by riding upon mining under reservoir region more particularly, to one kind The steel trestle construction method of bed scour.
Background technique
In water during bridge foundation construction, logical two sides are generally drawn by the way of setting up steel trestle, form work waterborne Industry channel, it is current for Material Transportation and construction equipment.Due to steel-pipe pile inserting piling simple process, structure stress is strong the advantages that It is usually used in steel trestle infrastructure in water.If but in the construction of mining under reservoir region, riverbed washes away lower no weakness in reservoir spillway Coating, surface layer are mostly gravel, cobble, under when being rock stratum condition, the infrastructure of trestle all uses inserting piling formula in water The shortcomings that steel-pipe pile is that valid bonding length is short, is impacted vulnerable to flood discharge torrent speed in short-term, and steel trestle overall stability is caused to be deteriorated, Unstability is in turn resulted in the negative consequences such as to collapse;And it is connected reinforced concrete drilling stake under steel-pipe pile and then needs to make in large area water Industry, not only long construction period, and marine equipment and goods and materials investment are more, personnel's operation safety risk height.
Summary of the invention
The purpose of the present invention is to provide a kind of speed of applications fastly, steel trestle infrastructure is stable, can resist flood discharge torrent The steel trestle construction method of impact.
To achieve the above object, the present invention can take following technical proposals:
The steel trestle construction method of the present invention for resisting flood discharge bed scour, including the setting of construction underwater foundation and paving If unit construction bridge panel, Specific construction step are as follows:
The first step is designed according to steel trestle, prepares the I fashioned iron tubular pole of diameter 920mm and II fashioned iron of diameter 426mm respectively Tubular pole, wherein the base opening of II fashioned iron tubular pole has pile top, top opening offers the groove for embedding distribution beam;
Second step uses outstanding play to I type by crawler crane erect-position by design requirement in beach on the bank or bridge floor of having constructed Steel-pipe pile and II fashioned iron tubular pole successively staggeredly carry out inserting piling, wherein I inserting piling two, fashioned iron tubular pole direction across bridge interval, II shape steel tube Inserting piling three, stake direction across bridge interval;
Distribution beam is embedded in its top groove by third step after the pile top inserting piling to rock top surface of II fashioned iron tubular pole, on Portion is closely connected with girder, installs hood type connection system between the adjacent two II fashioned iron tubular pole of direction across bridge later;
4th step is welded along bridge in I shape steel tube stake top mouth two sides after I fashioned iron tubular pole base opening inserting piling to rock top surface Interim bracket is connect, then puts that distribution beam is closely connected with girder, the girder top surface between two I fashioned iron tubular poles is laid with assembled later Steel bridge deck, wherein I shape steel tube stake top portion leaves a blank, width >=1 meter of leaving a blank;
5th step, when trestle toward not less than 2 times holes of assembled length in front of row steel-pipe pile across when, close to I fashioned iron of row Percussive drill is set on the assembled steel floorings of tubular pole, does casing using I fashioned iron tubular pole and carries out hole milling and with proceeding in rock stratum Designed elevation;Then it removes distribution beam and cuts off the interim bracket of the 4th step welding, by designed elevation position again in I shape steel tube Formal bracket is welded in stake, then puts distribution beam;It is closely knit with steel plate pad between distribution beam and girder, cut I shape steel tube Stake top mouth is concordant with girder;
6th step forms anti-anchoring pile from the I inside pouring underwater concrete of shape steel tube stake top mouth to rock top surface;Then exist Hood type connection system is installed between two I fashioned iron tubular pole of direction across bridge;Assembled steel floorings are laid at the place of leaving a blank;
7th step repeats second step to the 6th step, completes entire steel trestle construction.
Depth >=5 meter for the anti-anchoring pile being perfused in 6th step.
The advantage of the invention is that quick construction, when construction, can quickly form channel waterborne, carry out anti-anchoring pile by land and apply Work, operating environment is good, and capital investment is few;The design of steel trestle infrastructure is more reasonable, economical, the steel trestle lower part base constructed Plinth is stablized, and I fashioned iron tubular pole being relatively large in diameter is as strong stake, and the lesser II fashioned iron tubular pole of diameter is as weak stake, strong, weak stake interval cloth It sets, has not only met the stress needs of trestle under prevailing state, but also the impact of torrent speed water flow in short-term can be resisted, ensure that reservoir spillway At present the safety of trestle.
Detailed description of the invention
Fig. 1 is steel trestle Construction State schematic diagram of the present invention.
Fig. 2 is steel trestle operation state schematic diagram of the present invention.
Fig. 3 is the A-A of Fig. 2 to cutaway view Amplified image.
Fig. 4 is the B-B direction cutaway view Amplified image of Fig. 2.
Specific embodiment
More detailed explanation is done to the present invention with reference to the accompanying drawing.
The steel trestle construction method of the present invention for resisting flood discharge bed scour, including the setting of construction underwater foundation and paving If unit construction bridge panel, Specific construction step are as follows:
The first step is designed according to steel trestle, prepares the I fashioned iron tubular pole 1 of diameter 920mm and II type of diameter 426mm respectively Steel-pipe pile 2, wherein the base opening of II fashioned iron tubular pole 2 has pile top, top opening offers the groove for embedding distribution beam (due to I shape steel tube Stake 1 is different with the diameter of II fashioned iron tubular pole 2, and corresponding, the distribution beam model being placed on I fashioned iron tubular pole 1 can be larger, and The distribution beam model being placed on II fashioned iron tubular pole 2 can be smaller, not only needs to meet the load-bearing requirements of whole steel trestle, but also compared with For economy.Distribution beam can be prefabricated in advance according to design requirement);
Second step, as shown in Figure 1, design requirement is pressed, by 3 erect-position of crawler crane in beach on the bank or the bridge floor (Fig. 1 that constructed It is shown that erect-position is on bridge floor of having constructed) I fashioned iron tubular pole 1 and II fashioned iron tubular pole 2 are successively staggeredly carried out using outstanding play it is slotting It beats, wherein I fashioned iron tubular pole, 1 direction across bridge interval inserting piling two, II fashioned iron tubular pole, 2 direction across bridge interval inserting piling three;
Third step, after the pile top of II fashioned iron tubular pole 2 passes through 4 inserting piling of boulder bed to 5 top surface of rock, by ting model distribution beam 6 are embedded in its top groove, and top and girder 7 are closely connected, install anchor ear between the adjacent two II fashioned iron tubular pole 2 of direction across bridge later Formula connection is 8, as shown in Figure 1, Figure 3;
4th step, after I fashioned iron tubular pole, 1 base opening inserting piling to 5 top surface of rock, along suitable bridge in I fashioned iron tubular pole, 1 top opening two sides Interim bracket 9 is welded, then puts big model distribution beam 10 and girder 7 is closely connected, later the girder top between two I fashioned iron tubular poles 1 Face is laid with assembled steel floorings 11, wherein I shape steel tube stake top portion leaves a blank, distance of leaving a blank is not less than 1 meter;
5th step, when trestle toward not less than 2 times holes of assembled length in front of row steel-pipe pile across when (as shown in Figure 1), leaning on Percussive drill 12 is set on the assembled steel floorings 11 of the nearly I fashioned iron tubular pole 1 of row, does casing using I fashioned iron tubular pole 1 and is milled Hole and with proceeding to designed elevation in rock 5;Then it removes big model distribution beam 10 and cuts off the interim bracket 9 of the 4th step welding, It is as shown in Figure 2 to weld formal bracket 13(on I fashioned iron tubular pole 1 again by designed elevation position), then big model is put again Distribution beam 10;And it is closely knit with 14 pad of steel plate between distribution beam 10 and girder 7, it cuts I fashioned iron tubular pole, 1 top opening and girder 7 is flat Together;
6th step, from the inside pouring underwater concrete of I fashioned iron tubular pole, 1 top opening to rock top surface, formed anti-anchoring pile 15(be to The impact of torrent when anti-flood discharge, under normal circumstances, the depth of anti-anchoring pile 15 want >=5 meters);Then in two I fashioned iron tubular pole 1 of direction across bridge Between installation hood type connection be 16, as shown in Figure 4;Finally assembled steel floorings 11 are laid at the place of leaving a blank;
7th step repeats second step to the 6th step, completes entire steel trestle construction.
The steel trestle to put into effect after the completion of construction is as shown in Figure 2.

Claims (3)

1. a kind of steel trestle construction method for resisting flood discharge bed scour, including the setting of construction underwater foundation and laying unit construction bridge Panel, it is characterised in that: Specific construction step are as follows:
The first step is designed according to steel trestle, prepares the I fashioned iron tubular pole of diameter 920mm and II shape steel tube of diameter 426mm respectively Stake, wherein the base opening of II fashioned iron tubular pole has pile top, top opening offers the groove for embedding distribution beam;
Second step uses outstanding play to I shape steel tube by crawler crane erect-position by design requirement in beach on the bank or bridge floor of having constructed Stake and II fashioned iron tubular pole successively staggeredly carry out inserting piling, wherein I inserting piling two, fashioned iron tubular pole direction across bridge interval, II fashioned iron tubular pole cross-bridges To interval inserting piling three;
Distribution beam is embedded in its top groove by third step after the pile top inserting piling to rock top surface of II fashioned iron tubular pole, top with Girder is closely connected, installs hood type connection system between the adjacent two II fashioned iron tubular pole of direction across bridge later;
4th step is faced along bridge to the welding in I shape steel tube stake top mouth two sides after I fashioned iron tubular pole base opening inserting piling to rock top surface When bracket, then put that distribution beam is closely connected with girder, the girder top surface between two I fashioned iron tubular poles is laid with assembled steel bridge floor later Plate, wherein I shape steel tube stake top portion leaves a blank;
5th step, when trestle toward not less than 2 times holes of assembled length in front of row steel-pipe pile across when, close to the I fashioned iron tubular pole of row Assembled steel floorings on percussive drill is set, using I fashioned iron tubular pole do casing carry out cut holes and designed with proceeding in rock stratum Absolute altitude;Then it removes distribution beam and cuts off the interim bracket of the 4th step welding, by designed elevation position again on I fashioned iron tubular pole Formal bracket is welded, then puts distribution beam;It is closely knit with steel plate pad between distribution beam and girder, cut I shape steel tube stake top Mouth is concordant with girder;
6th step forms anti-anchoring pile from the I inside pouring underwater concrete of shape steel tube stake top mouth to rock top surface;Then in cross-bridges It is to hood type connection is installed between two I fashioned iron tubular poles;Assembled steel floorings are laid at the place of leaving a blank;
7th step repeats second step to the 6th step, completes entire steel trestle construction.
2. the steel trestle construction method according to claim 1 for resisting flood discharge bed scour, it is characterised in that: the described 4th I shape steel tube stake top portion leaves a blank width >=1 meter in step.
3. the steel trestle construction method according to claim 1 for resisting flood discharge bed scour, it is characterised in that: the described 6th Depth >=5 meter for the anti-anchoring pile being perfused in step.
CN201810506336.3A 2018-05-24 2018-05-24 A kind of steel trestle construction method for resisting flood discharge bed scour Active CN108708284B (en)

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Publication number Priority date Publication date Assignee Title
CN111576222A (en) * 2020-05-06 2020-08-25 广州市市政工程设计研究总院有限公司 Construction method of steel pipe pile stacked road type road

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120072650A (en) * 2010-12-24 2012-07-04 주식회사 케이티 Device for supporting rack of earthquake resistance
CN104404861A (en) * 2014-11-05 2015-03-11 中交第二航务工程局有限公司 Steel trestle provided with steel anchor pile and construction method of steel trestle
CN205046537U (en) * 2015-09-21 2016-02-24 中铁建大桥工程局集团第一工程有限公司 Naked rock platform of deep water
CN106192774A (en) * 2015-09-11 2016-12-07 中铁四局集团有限公司 A kind of steel trestle construction installation
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120072650A (en) * 2010-12-24 2012-07-04 주식회사 케이티 Device for supporting rack of earthquake resistance
CN104404861A (en) * 2014-11-05 2015-03-11 中交第二航务工程局有限公司 Steel trestle provided with steel anchor pile and construction method of steel trestle
CN106192774A (en) * 2015-09-11 2016-12-07 中铁四局集团有限公司 A kind of steel trestle construction installation
CN205046537U (en) * 2015-09-21 2016-02-24 中铁建大桥工程局集团第一工程有限公司 Naked rock platform of deep water
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
复杂海域条件下浅覆盖层深水基础施工方案设计;何锦章;《西部交通科技》;20151231;全文 *

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