CN105133506B - Impact is bored spacing pore-forming and is implanted steel trestle construction method and the facility combining crawler crane - Google Patents
Impact is bored spacing pore-forming and is implanted steel trestle construction method and the facility combining crawler crane Download PDFInfo
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- CN105133506B CN105133506B CN201510580119.5A CN201510580119A CN105133506B CN 105133506 B CN105133506 B CN 105133506B CN 201510580119 A CN201510580119 A CN 201510580119A CN 105133506 B CN105133506 B CN 105133506B
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- trestle
- beret truss
- encorbelmenting
- crawler crane
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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
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
- E01D21/065—Incremental launching
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D11/00—Methods or apparatus specially adapted for both placing and removing sheet pile bulkheads, piles, or mould-pipes
-
- 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
- E02D27/52—Submerged foundations, i.e. submerged in open water
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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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/40—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds in open water
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses the impact spacing pore-forming of brill and implant steel trestle construction method and the facility combining crawler crane, its construction method is to have advanced whole bridge construction from one end steel trestle one by one to other end steel trestle, and on completed, one forms next across beret truss beam of encorbelmenting on steel trestle；Position-limited rack and percussive drill are by double-hook I-steel and screw-thread steel is U-shaped fastens at next on beret truss beam of encorbelmenting, and make to be at next in the plan-position of the position-limited rack encorbelmented on the plan-position of steel trestle steel-pipe pile；Placing steel pile casting in position-limited rack, impact is bored tup hammering basement rock in steel pile casting and is formed stake holes.The present invention is directed to current and the execution conditions of riverbed oblique rock surface rapidly, need not by workmen's underwater performance drilling by blasting trestle pipe pile foundation, need not the marine equipments such as boats and ships and enter scene, avoid operating personnel and the boats and ships potential safety hazard of operation under flow condition rapidly, reduce engineering cost, improve working security.
Description
Technical field
The present invention relates to construction method and the facility of a kind of steel trestle, more specifically a kind of in current rapidly, riverbed be nothing
Cover layer inclination basement rock and boats and ships cannot be introduced into steel trestle construction method and the construction installation of construction area.
Background technology
Steel trestle conventional construction method is to use steel-pipe pile and beret truss as major bearing structures, and on-the-spot reassembling type sets up, i.e. profit
With crawler crane at the head set up on trestle, hole-specifically inserted to play Conveyor belt, lift bridge deck structure, complete one across rear, crawler crane
Move to next across, push ahead construction by cross.But, use traditional steel trestle construction method, under water impact rapidly,
Trestle steel pipe pile is location difficulty when inserted to play, and riverbed is for tilting bedrock surface, and crawler crane coordinates vibration hammer steel pipe column cannot be squeezed into rock
In stone, it is impossible to ensure the stability of trestle vertical and horizontal.
Yongjing County, Gansu Yanguoxia Yellow River Bridge is positioned at yanguoxia hydropower station dam downstream about 700m, in eight Pan Xia Reservoir of Hydropower Stations,
Construction period, power station release floodwatering flow reached 6.5m/s, depth of water 6-8m rapidly on the occasion of summer, and washing away year in year out causes Bridge
Top layer, riverbed, location intectate, tilt big rise and fall for middle air slaking strength of sandstone 800Kpa and bedrock surface.Ship in Reservoir of Hydropower Station
Oceangoing ship cannot be introduced into.Reservoir of Hydropower Station current rapidly, riverbed intectate inclined rock base environmental condition under, conventional steel trestle
Construction method cannot ensure its safety of structure.
Summary of the invention
The present invention is for avoiding the weak point existing for above-mentioned prior art, it is provided that a kind of impact is bored the implantation combination of spacing pore-forming and carried out
Steel trestle construction method that band hangs and facility, to ensure in Reservoir of Hydropower Station current, the ring of riverbed intectate inclined rock base rapidly
The safety of structure of the steel trestle of construction under the conditions of border.
The present invention solves that technical problem adopts the following technical scheme that
It is to carry out as follows that the present invention impacts the feature of the steel trestle construction method that brill spacing pore-forming implantation combines crawler crane:
Step 1: first across steel trestle in bank construction, crawler crane moves at described head on steel trestle, at described head across steel trestle
Upper installation second is across beret truss beam of encorbelmenting；
Step 2: by double-hook I-steel and screw-thread steel is U-shaped fastens described second across encorbelmenting by position-limited rack and percussive drill
On beret truss beam, make to be at second in the plan-position of the position-limited rack encorbelmented on the plan-position of steel-pipe pile；Described spacing
Placing steel pile casting in frame, percussive drill spacing hammering basement rock in steel pile casting forms stake holes, pours concrete, crawler crane profit in stake holes
With vibration hammer by second in steel-pipe pile is implanted in the stake holes pouring concrete, then use crawler crane coordinate vibration hammer extract steel pile casting,
Complete second across the construction of steel pipe pile foundation；
Step 3: described second on steel-pipe pile set up crossbeam I-steel, second across residue longeron beret truss, the second bridge face
Plate and the 3rd is across beret truss beam of encorbelmenting；
Step 4: by the mode of step 2 and step 3 by U-shaped by double-hook I-steel and screw-thread steel to position-limited rack and percussive drill
Fasten the described 3rd on beret truss beam of encorbelmenting, carry out the 3rd across the construction of steel-pipe pile；Pacify on steel-pipe pile the described 3rd
Dress crossbeam I-steel, the 3rd across residue longeron beret truss, the 3rd bridge panel and the 4th across encorbelmenting beret truss beam, complete the 3rd across
The construction of steel trestle；Advance each across steel trestle, until completing the construction of whole steel trestle one by one with this.
The present invention impacts the feature of the steel trestle construction method that brill spacing pore-forming implantation combines crawler crane and lies also in: include second across outstanding
Choosing beret truss beam and the 3rd across beret truss beam of encorbelmenting is beret truss in single span steel trestle at the cantilever span of interior beret truss beam of respectively encorbelmenting
2/3rds of the length of beam.
The present invention impacts the feature of the steel trestle construction method that brill spacing pore-forming implantation combines crawler crane and lies also in: the hole of described stake holes
End absolute altitude is positioned at below face, riverbed absolute altitude 1.5m position.
The present invention impacts the feature of the steel trestle construction method that brill spacing pore-forming implantation combines crawler crane and lies also in: in described stake holes
In pore forming process, stop boring when hole depth reaches to set absolute altitude, use reacting cycle sewage pump to be drained by boring mud only in hole,
The concrete poured in stake holes is slow setting early-strength C50 concrete, uses crawler crane and vibration hammer to be inserted in concrete by steel-pipe pile before concrete initial set.
The feature of steel trestle construction installation of the present invention is: described steel trestle refers to push away one by one to other end steel trestle from one end steel trestle
Having entered the steel trestle of whole bridge construction, on completed, one forms next across beret truss beam of encorbelmenting on steel trestle；Position-limited rack and
Percussive drill is by double-hook I-steel and screw-thread steel is U-shaped fastens at next on beret truss beam of encorbelmenting, and makes spacing in encorbelment
The plan-position of frame is at next on the plan-position of steel trestle steel-pipe pile；Steel pile casting, impact is placed in described position-limited rack
Bore tup hammering basement rock in steel pile casting and form stake holes.
The feature of steel trestle construction installation of the present invention lies also in: arrange three double-hook I-steel as lower cross-arm, described lower cross-arm
Be placed on next on beret truss beam of encorbelmenting, utilize the U-shaped card of lower floor's screw-thread steel next to be fixed with lower cross-arm across beret truss beam of encorbelmenting
Connect；Position-limited rack fastens on described lower cross-arm by middle level screw-thread steel is U-shaped at afterbody；Arrange two double-hook I-steel to make
For upper cross-arm, described upper cross-arm is placed on position-limited rack, utilizes screw-thread steel U-shaped card in upper strata to be connected fixing to upper cross-arm and position-limited rack；
The U-shaped card of screw-thread steel is used to be connected fixing to two percussive drill pedestal channel-section steels arranged side by side and upper cross-arm.
The inventive method be at current rapidly, the complex condition of riverbed intectate, oblique rock surface, use impact bore spacing hammer
Hit bedrock surface pore-forming, in hole, pour the strongest retardation setting type C50 concrete, before treating concrete initial set, use crawler crane and vibration hammer by trestle steel pipe
Pile foundation is implanted in concrete, then installs beam and bridge floor in length and breadth, pushes ahead construction, the i.e. steel trestle of " fishing type implantation " by cross
Construction method, compared with the prior art, the present invention has the beneficial effect that:
1, the present invention bores after hammering basement rock pore-forming pours concrete in employing impact in Bailey beam of encorbelmenting and implants steel-pipe pile, for face, riverbed is
Tilt the execution conditions of exposed bedrock, it is not necessary to workmen bursting work pore-forming under water, it is to avoid operating personnel is at lotic water
The potential safety hazard of middle construction, it is ensured that safe construction.
2, the present invention uses double-hook I-steel and U-shaped fastens position-limited rack encorbelmenting in Bailey beam, solid by firm position-limited rack
Determine steel pile casting, it is ensured that the one-tenth hole site of trestle steel pipe pile foundation is accurate under lotic water impacts, it is ensured that the structural safety of trestle.
3, the present invention uses double-hook I-steel and U-shaped fastens percussive drill encorbelmenting in Bailey beam, it is to avoid in storehouse, power station
Use large-scale pile driving barge in district, reduce engineering cost.
4, the slow setting early-strength C50 concrete that the present invention pours in percussive drill hammering basement rock pore-forming, uses crawler crane before concrete initial set
Being implanted by steel-pipe pile with vibration hammer, the time making concrete reach design strength C20 shortened in 24 hours, it is ensured that be implanted in hole
Steel-pipe pile can form entirety with face, riverbed basement rock, and steel-pipe pile can resist the impact of lotic water.
Accompanying drawing illustrates:
Fig. 1 is Construction State one facade structures schematic diagram of the present invention；
Fig. 2 is Construction State two facade structures schematic diagram of the present invention；
Fig. 3 is Fig. 2 interior joint A structural representation；
Fig. 4 is Fig. 2 interior joint B structure schematic diagram；
Fig. 5 is Fig. 2 interior joint C-structure schematic diagram；
Fig. 6 is Fig. 2 interior joint D structural representation；
Label in figure: 1 head is across steel trestle, and 2 second across beret truss beam of encorbelmenting, and 2a second is across residue longeron beret truss, 2b the 3rd
Across beret truss beam of encorbelmenting, 3 position-limited racks, cross-arm under 4a, the upper cross-arm of 4b, the U-shaped card of 5a lower floor screw-thread steel, 5b middle level screw-thread steel U
Type card, the 5c upper strata U-shaped card of screw-thread steel, the U-shaped card of 5d screw-thread steel, 6 steel pile casting, 7 stake holes, 8 concretes, 9 second across steel-pipe pile,
10 crossbeam I-steel, 11 floorings, 12 crawler cranes, 13 percussive drills, 14 next across beret truss beam of encorbelmenting, 15 percussive drills
Pedestal channel-section steel.
Detailed description of the invention
Seeing Fig. 1 and Fig. 2, in the present embodiment, the spacing pore-forming implantation of impact brill combines the steel trestle construction method of crawler crane is by such as
Lower step is carried out:
Step 1: first across steel trestle 1 in bank construction, crawler crane 12 moves at head on steel trestle 1, at head across steel trestle 1
Upper installation length is that 600cm second is across beret truss beam 2 of encorbelmenting.
Step 2: position-limited rack 3 and percussive drill 13 are fixed on described by double-hook I-steel and screw-thread steel U-shaped card 5d
Two on beret truss beam 2 of encorbelmenting, and makes to be at second on the plan-position of steel-pipe pile in the plan-position of the position-limited rack 3 encorbelmented；
Placing the steel pile casting 6 of a diameter of 1m in position-limited rack 3, the tup of percussive drill diameter 0.8m is placed in steel pile casting 6, punching
Hit rig 13 spacing hammering basement rock in steel pile casting 6 and form the stake holes 7 of a diameter of 0.8m, stake holes 7 pours slow setting the strongest
Type C50 concrete 8, utilizes crawler crane 12 and vibration hammer to implant the second of a diameter of 0.63m across steel-pipe pile 9 before concrete 8 initial set and waters
Build in the stake holes 7 of concrete 8；Through about 24 hours, when test cube in the same condition intensity reaches C20, i.e. it is judged as in stake holes 7
Concrete Final 8 degree reaches C20, uses crawler crane 12 to coordinate vibration hammer to extract steel pile casting 6, completes second across the construction of steel pipe pile foundation.
Subsequently, disassemble the U-shaped card of each screw-thread steel successively, and utilize crawler crane to hang out percussive drill, position-limited rack and each double-hook I-steel.
Step 3: second on steel-pipe pile 9 set up crossbeam I-steel 10, a length of 300cm second across residue longeron shellfish thunder
The 3rd of sheet 2a, the second bridge panel 11 and a length of 600cm is across the beret truss beam 2b that encorbelments, in Specific construction, second across
Residue longeron beret truss 2a and the 3rd is an integrally-built beret truss beam across the beret truss beam 2b that encorbelments, a length of 900cm,
Lifting second i.e. forms the 3rd across the beret truss beam 2b that encorbelments while residue longeron beret truss 2a.
Step 4: by the mode of step 2 and step 3 by U-shaped by double-hook I-steel and screw-thread steel to position-limited rack and percussive drill
Fasten the 3rd on the beret truss beam 2b that encorbelments, carry out the 3rd across the construction of steel-pipe pile；The 3rd, crossbeam is installed on steel-pipe pile
I-steel, the 3rd across residue longeron beret truss, the 3rd bridge panel and the 4th across encorbelmenting beret truss beam, complete the 3rd across steel trestle
Construction；Advance each across steel trestle, until completing the construction of whole steel trestle one by one with this.
In being embodied as,
A diameter of 0.63m of steel-pipe pile, wall thickness are 12mm；The a length of 9m of single hole steel trestle；Including second across beret truss of encorbelmenting
Beam 2 and the 3rd across the beret truss beam 2b cantilever span at interior beret truss beam of respectively encorbelmenting of encorbelmenting be beret truss beam in single span steel trestle
2/3rds of length, beret truss beam is six example parallel arranged, and every two row beret truss beams connect into entirety, spacing by connecting sheet
For 0.9m, absolute altitude at the bottom of the hole of stake holes 7 is positioned at below face, riverbed absolute altitude 1.5m position.
In the pore forming process of stake holes 7, stopping boring when hole depth reaches to set absolute altitude, employing reacting cycle sewage pump will in hole
Boring mud is drained only, and the concrete 8 poured in stake holes 7 is slow setting early-strength C50 concrete, uses crawler crane and vibration hammer before concrete initial set
Steel-pipe pile is inserted in concrete 8.
As depicted in figs. 1 and 2, in the present embodiment, the version of steel trestle construction installation is: steel trestle refers to from one end steel stack
Bridge has advanced the steel trestle of whole bridge construction one by one to other end steel trestle, on completed one formed on steel trestle next across
Encorbelment beret truss beam；Position-limited rack 3 and percussive drill are by double-hook I-steel and screw-thread steel is U-shaped fastens at next across shellfish of encorbelmenting
On thunder sheet beam, make to be at next in the plan-position of the position-limited rack 3 encorbelmented on the plan-position of steel trestle steel-pipe pile；In limit
Placing steel pile casting 6 in the frame 3 of position, impact is bored tup hammering basement rock in steel pile casting 6 and is formed stake holes 7.
Shown in as shown in Figure 1, Figure 3 and Figure 4, three double-hook I-steel are set and are placed on next as lower cross-arm 4a, lower cross-arm 4a
On beret truss beam 14 of encorbelmenting, utilize lower floor's screw-thread steel U-shaped card 5a that next is solid with lower cross-arm 4a across beret truss beam 14 of encorbelmenting
Fixed connection；At afterbody, by middle level screw-thread steel, U-shaped card 5b is fixed on lower cross-arm 4a position-limited rack 3.
As shown in Figure 1 and Figure 5, two double-hook I-steel are set and are placed on position-limited rack 3 as upper cross-arm 4b, upper cross-arm 4b
On, utilize screw-thread steel U-shaped card 5c in upper strata to be connected fixing with position-limited rack 3 for upper cross-arm 4a；Employing screw-thread steel U-shaped card 5d will also
Two percussive drill pedestal channel-section steels 15 of row are fixing with upper cross-arm 4b to be connected.
The double-hook I-steel amounting to five a length of 7m is respectively used to be fixedly connected on position-limited rack 3 encorbelment on beret truss beam, with
And just percussive drill 13 is fixed on position-limited rack 3.
In being embodied as, steel trestle construction installation midas to be passed through Structure Checking Method, meet in specification about steel trestle intensity, just
Degree and the requirement of stability.
The steel pile casting 6 making a diameter of 1m is two, steel pile casting 6 be used for protecting steel-pipe pile before anchoring concrete reaches intensity from
Washing away, the position-limited rack 3 being correspondingly arranged is also two, is used for fixing steel pile casting 6, accurate to guarantee steel-pipe pile position.
The present embodiment is for current rapidly and the execution conditions of riverbed oblique rock surface, it is not necessary to become by workmen's underwater performance explosion
Hole trestle pipe pile foundation, it is not necessary to boats and ships enter scene, it is to avoid operating personnel and boats and ships peace of operation under flow condition rapidly
Full hidden danger, reduces engineering cost, improves working security.
Claims (4)
1. impact is bored spacing pore-forming and is implanted the steel trestle construction method combining crawler crane, it is characterized in that carrying out as follows:
Step 1: first across steel trestle (1) in bank construction, crawler crane (12) moves at described head on steel trestle (1), described
Head above installs second across beret truss beam (2) of encorbelmenting across steel trestle (1)；
Step 2: position-limited rack (3) and percussive drill are fastened described second across outstanding by double-hook I-steel and screw-thread steel are U-shaped
Choose on beret truss beam (2), make to be at second on the plan-position of steel-pipe pile (9) in the plan-position of the position-limited rack (3) encorbelmented；
Placing steel pile casting (6) in described position-limited rack (3), percussive drill spacing hammering basement rock in steel pile casting (6) forms stake holes (7),
Pouring concrete (8) in stake holes (7), crawler crane (12) utilizes vibration hammer to be implanted in second across steel-pipe pile (9) and pours the stake holes of concrete (8)
(7) in, then use crawler crane (12) to coordinate vibration hammer to extract steel pile casting (6), complete second across the construction of steel pipe pile foundation；
Step 3: described second across steel-pipe pile (9) upper set up crossbeam I-steel (10), second across residue longeron beret truss (2a),
Second bridge panel (11) and the 3rd is across beret truss beam (2b) of encorbelmenting；
Step 4: by the mode of step 2 and step 3 by U-shaped by double-hook I-steel and screw-thread steel to position-limited rack and percussive drill
Fasten the described 3rd on beret truss beam (2b) of encorbelmenting, carry out the 3rd across the construction of steel-pipe pile；The described 3rd across steel-pipe pile
Upper installation crossbeam I-steel, the 3rd across residue longeron beret truss, the 3rd bridge panel and the 4th across encorbelmenting beret truss beam, complete the
Three across the construction of steel trestle；Advance each across steel trestle, until completing the construction of whole steel trestle one by one with this.
Impact the most according to claim 1 is bored spacing pore-forming and is implanted the steel trestle construction method combining crawler crane, it is characterized in that:
Include second across beret truss beam (2) and the cantilever span of the 3rd beret truss beam of respectively encorbelmenting including beret truss beam (2b) of encorbelmenting of encorbelmenting
It is in single span steel trestle 2/3rds of the length of beret truss beam.
Impact the most according to claim 1 is bored spacing pore-forming and is implanted the steel trestle construction method combining crawler crane, it is characterized in that:
Absolute altitude at the bottom of the hole of described stake holes (7) is positioned at below face, riverbed absolute altitude 1.5m position.
Impact the most according to claim 1 is bored spacing pore-forming and is implanted the steel trestle construction method combining crawler crane, it is characterized in that:
In the pore forming process of described stake holes (7), stopping boring when hole depth reaches to set absolute altitude, employing reacting cycle sewage pump will in hole
Boring mud is drained only, and the concrete (8) poured in stake holes (7) is slow setting early-strength C50 concrete, uses crawler crane and vibrations before concrete initial set
Steel-pipe pile is inserted in concrete (8) by hammer.
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| CN201510580119.5A CN105133506B (en) | 2015-09-11 | 2015-09-11 | Impact is bored spacing pore-forming and is implanted steel trestle construction method and the facility combining crawler crane |
| CN201610742576.4A CN106192774A (en) | 2015-09-11 | 2015-09-11 | A kind of steel trestle construction installation |
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| CN201510580119.5A CN105133506B (en) | 2015-09-11 | 2015-09-11 | Impact is bored spacing pore-forming and is implanted steel trestle construction method and the facility combining crawler crane |
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- 2015-09-11 CN CN201610742576.4A patent/CN106192774A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108797323A (en) * | 2018-08-24 | 2018-11-13 | 中国建筑局（集团）有限公司 | A kind of steel trestle suitable for hardpan |
| CN110924307A (en) * | 2019-11-28 | 2020-03-27 | 中铁广州工程局集团桥梁工程有限公司 | Trestle construction method for bare rock geology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106192774A (en) | 2016-12-07 |
| CN105133506A (en) | 2015-12-09 |
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