CN215051970U - Steel trestle structure of deep water bare rock stratum river channel - Google Patents
Steel trestle structure of deep water bare rock stratum river channel Download PDFInfo
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- CN215051970U CN215051970U CN202120567940.4U CN202120567940U CN215051970U CN 215051970 U CN215051970 U CN 215051970U CN 202120567940 U CN202120567940 U CN 202120567940U CN 215051970 U CN215051970 U CN 215051970U
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Abstract
The utility model provides a deep water bare rock stratum river course steel trestle structure, including steel pipe pile foundation, spandrel girder, bailey beam, bridge floor, steel pipe pile foundation includes the pile position drilling that forms on the bare rock stratum of riverbed through the rig, fixes the steel-pipe pile in the pile position drilling, arranges the steel-pipe pile in and the concrete under water between the drilling of pile position, is equipped with the connection system to every two sets of steel-pipe pile that sets up along indulging the bridge, and the cross bridge is to setting also be equipped with the connection system between the steel-pipe pile, bailey beam bottom is equipped with bailey beam stopper and fixes it in the steel-pipe pile top, the bridge floor includes that the cross bridge is to evenly setting up the horizontal distribution roof beam in bailey beam top, the longitudinal beam to setting up longeron, the decking of setting in the longeron top. The utility model discloses through the construction of steel trestle again of elder generation during the construction, the process of concrete pouring has improved the time limit for a project at last under water, has ensured the stability on steel trestle steel pipe pile basis, stable in structure, and construction convenience practices thrift the cost.
Description
Technical Field
The utility model belongs to the technical field of the steel trestle construction, concretely relates to exposed rock stratum river course steel trestle structure of deep water.
Background
For the trestle in the deep water bare rock stratum area, if the traditional method is adopted for construction, the steel pipe pile cannot be driven into the rock stratum to the embedding depth, and the trestle is influenced by the action and the influence of wind, water flow and waves, so that the stability of the trestle foundation and the anchoring of the bottom opening of the steel pipe pile cannot be ensured, and the safety performance of the trestle and the construction progress of main engineering are influenced.
The construction methods commonly adopted in the prior art include artificial covering layer, jacket, cast-in-place pile anchoring first, cast-in-place pile anchoring later and the like. According to the scheme of the artificial covering layer, a large number of soil bags are required to be thrown and filled in the range of the steel trestle steel pipe pile, the soil bags are easy to roll off or washed away by water flow, waste is large, the engineering quantity is large, the construction period is long, and the cost is high; in the jacket scheme, a plurality of steel pipe piles with bottoms matched with the submarine topography are connected into a jacket on land or on a ship according to relative positions, a large transport ship is transported to a trestle pile position, a large-tonnage lifting ship is hoisted and installed, an underwater cofferdam is arranged at the bottom of the jacket, and underwater concrete is poured, so that the scheme has the advantages of large engineering quantity, large construction difficulty, long period and high cost; the cast-in-place pile first anchoring scheme is that an overwater platform is adopted to position at a steel pipe pile of a steel trestle, a guide frame transfers the steel pipe pile to a rock surface, a drilling machine forms a hole in the steel pipe pile, an anchoring pile is constructed and anchored in a rock stratum, and then the upper structure construction of the steel trestle is carried out, the bottom opening of the steel pipe pile is easy to leak grout during the construction of the cast-in-place pile, the construction period is long, and the cost is high; anchoring scheme behind bored concrete pile, adopt pile driver boat to insert a set of steel-pipe pile fast earlier, connect into whole with adjacent steel-pipe pile, at steel-pipe pile horizontal bridge to bilateral symmetry welding bracket and shelve the crossbeam, build the bailey beam on the crossbeam, and then build the decking, adopt the rig to carry out the construction of anchoring pile in the steel-pipe pile again, this scheme construction period is shorter, but can't realize the enough degree of depth of steel-pipe pile driving into the rock face to the basement rock that intensity is higher or the rock face is steeper, steel-pipe pile bottom opening is very easy the turn-up in the process of inserting and beating, and the steel-pipe pile is inserted and is beaten and topple over easily under the effect of the big velocity of flow after beating, the easy hourglass thick liquid of steel-pipe pile bottom opening during bored concrete pile construction, the steel-pipe pile is easily sunk and is led to the landing stage collapse deformation because of pile bottom rock face breakage in the process of punching a hole, the safety risk is big.
Disclosure of Invention
The utility model provides a deep water bare rock stratum river course steel trestle structure can improve construction period greatly, has ensured the stability on steel trestle steel pipe pile basis simultaneously.
The technical scheme of the utility model is that: a steel trestle structure for a riverway with a deep water bare rock stratum comprises a steel pipe pile foundation arranged on the bare rock stratum of a riverbed, a bearing beam arranged on the steel pipe pile foundation, a Bailey beam arranged above the bearing beam, and a bridge deck arranged above the Bailey beam, the steel pipe pile foundation comprises a pile position drill hole formed on an exposed rock stratum of a riverbed through a drilling machine, steel pipe piles fixed in the pile position drill hole, underwater concrete arranged in the steel pipe piles and between the steel pipe piles and the pile position drill hole, connecting systems are arranged between every two groups of the steel pipe piles arranged along the longitudinal bridge direction, connecting systems are also arranged between the steel pipe piles arranged along the transverse bridge direction, the bottom of the Bailey beam is provided with a Bailey beam stopper for fixing the Bailey beam above the steel pipe pile, and the bridge deck comprises transverse distribution beams uniformly arranged above the Bailey beam in the transverse bridge direction, longitudinal beams arranged above the transverse distribution beams in the longitudinal bridge direction and a bridge deck arranged above the longitudinal beams.
According to the scheme, a guard rail is arranged on the bridge deck.
According to the scheme, the concrete overflow hole is formed in the side face of the bottom of the steel pipe pile, so that concrete in the steel pipe pile overflows to fix the steel pipe pile, and the concrete overflow hole is 30cm away from the bottom of the steel pipe pile.
And in the scheme, the number of the concrete overflow holes is 4, and the concrete overflow holes are arranged on the side surface of the steel pipe pile in the longitudinal and transverse directions.
The scheme is further that the connecting system comprises an upper horizontal connecting system, a lower horizontal connecting system and a scissors connecting system, the upper horizontal connecting system and the lower horizontal connecting system are arranged along the height direction of the steel pipe pile, and the scissors connecting system is arranged between the upper horizontal connecting system and the lower horizontal connecting system.
And further, a pile cap butt strap is arranged at the top of the steel pipe pile.
The scheme is further that the spandrel girder comprises two transverse H-shaped steels arranged in the bridge direction and a connecting plate arranged between the two H-shaped steels.
In the scheme, the connecting plate and the pile cap butt strap are provided with guide holes.
The utility model has the advantages that: the utility model discloses stable in structure is firm, construction convenience, construction period is short, and the cost is saved, carry out the pile position hole guide in proper order during the construction, carry out the steel-pipe pile again, the installation of steel-pipe pile connection system, pile cap steel sheet installation, the spandrel girder installation, bailey installation and bridge floor structure installation, carry out next hole construction again, until the bridge formation back, the subdivision carries out the steel-pipe pile bottom in batches and pours into concrete under water, through pore-forming earlier, steel trestle construction again, the construction technology that anchor concrete poured into under water at last, reduce each pile position and pour into concrete equal strength time after in proper order, can improve construction period greatly, the stability on steel trestle steel-pipe pile foundation has been ensured simultaneously.
Drawings
Fig. 1 is a longitudinal structure diagram of a steel trestle structure of a deep water exposed rock layer river channel of the utility model;
fig. 2 is a schematic diagram of a transverse bridge structure of the steel trestle structure of the deep water bare rock river of the utility model;
FIG. 3 is an enlarged view of a portion of FIG. 1 at A;
FIG. 4 is a schematic view of a bottom structure of the steel pipe pile;
FIG. 5 is a schematic structural view of the pouring device used for underwater concrete pouring of the present invention;
fig. 6-8 are schematic diagrams of the construction process of the present invention, fig. 6 is a schematic diagram of pile position percussion drilling guiding holes, fig. 7 is a schematic diagram of steel pipe piles, transverse connection, beret beams and bridge deck installation, guiding holes of the next row of pile positions, and fig. 8 is a schematic diagram of underwater concrete pouring;
wherein: 1. the method comprises the following steps of (1) drilling holes in a riverbed exposed rock stratum, 2) drilling holes in a pile position, 3) underwater concrete, 4) steel pipe piles, 5 connecting systems, 6 pile cap butt straps, 7 bearing beams, 8 Bailey beam limiters, 9 Bailey beams, 10 transverse distribution beams, 11 longitudinal beams, 12 bridge deck boards, 13 guard rails, 14 connecting plates, 15 concrete overflow holes;
21. hopper, 22, conduit.
Detailed Description
The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which a person skilled in the art can, without any creative effort, fully implement the present invention.
As shown in fig. 1-8, a steel trestle structure for a river channel in a deep exposed rock stratum comprises a steel pipe pile foundation arranged on an exposed rock stratum of a river bed, a bearing beam 7 arranged on the steel pipe pile foundation, a beret beam 9 arranged above the bearing beam 7, and a bridge floor arranged above the beret beam 9, wherein the steel pipe pile foundation comprises a pile position drilling hole 2 formed on the exposed rock stratum 1 of the river bed through a drilling machine, a steel pipe pile 4 fixed in the pile position drilling hole 2, and underwater concrete 3 arranged in the steel pipe pile 4 and between the steel pipe pile 4 and the pile position drilling hole 2, a connecting system 5 is arranged between every two groups of the steel pipe piles 4 arranged along a longitudinal direction, a connecting system 5 is also arranged between the steel pipe piles 4 arranged along a transverse direction, a beret beam stopper 8 is arranged at the bottom of the beret beam 9 to fix the beret beam above the steel pipe piles 4, and the steel pipe trestle comprises transverse distribution beams 10 and a transverse distribution beam uniformly arranged above the beret beam 9 along the transverse direction, The longitudinal bridge is a longitudinal beam 11 arranged above the transverse distribution beam 10, and a bridge deck 12 arranged above the longitudinal beam 11.
Further, a guard rail 13 is arranged on the bridge deck 12.
Further, concrete overflow holes 15 are formed in the side face of the bottom of the steel pipe pile 4, so that concrete in the steel pipe pile 4 can overflow to fix the steel pipe pile 4 conveniently, and the distance between the concrete overflow holes 15 and the bottom of the steel pipe pile 4 is 30 cm.
Further, the number of the concrete overflow holes 15 is 4, and the concrete overflow holes are arranged on the side surfaces of the steel pipe pile 4 in the longitudinal and transverse directions.
Further, the connection system 5 includes an upper horizontal connection system, a lower horizontal connection system, and a scissors connection system, the upper horizontal connection system and the lower horizontal connection system are disposed along the height direction of the steel pipe pile 4, and the scissors connection system is disposed between the upper horizontal connection system and the lower horizontal connection system.
Further, a pile cap butt strap 6 is arranged at the top of the steel pipe pile 4.
Further, the bearing beam 7 comprises two transverse bridge-wise arranged i-shaped steels and a connecting plate 14 arranged between the two i-shaped steels.
Further, be equipped with the guiding hole on connecting plate 14, pile cap attachment strap 6, perfusion device includes pipe 22 and hopper 21, the guiding hole size of pipe 22 on with connecting plate 14, the pile cap attachment strap 6 matches, and the pipe 22 of being convenient for runs through from last to down in proper order and transfers to the stake position drilling 2 more than the 30cm department.
The utility model discloses a work progress is:
step 1: pile position positioning is carried out, and a drilling machine is used for pile position leading holes to form pile position drilling holes 2 on the exposed rock stratum 1 of the riverbed;
step 2: installing a steel pipe pile 4 on the pile position drilled hole 2 formed in the step 1, and then sequentially installing a connecting system 5, a pile cap butt plate 6, a bearing beam 7, a Bailey beam 9 and a bridge deck;
and step 3: performing the construction of a next pile position drilling hole 2, and circulating the step 1 and the step 2 until the steel trestle is built;
and 4, step 4: carry out 4 bottoms of steel-pipe pile underwater concrete 3 in batches and pour into, install filling device, stretch into in the steel-pipe pile 4 with pipe 22, add the concrete from hopper 21, the concrete overflows the clearance of filling steel-pipe pile 4 and stake position drilling 2 through the concrete overflow hole 15 of 4 bottoms of steel-pipe pile, and it is firm to bond in 4 bottoms of steel-pipe pile, steel-pipe pile.
Further, when the step 4 is carried out, a water level is filled in the steel pipe pile 4 at the same time, and the concrete in the pile position drilling hole 2 is ensured to overflow and be tightly filled.
While the preferred embodiments of the present invention have been described, it is to be understood that the invention is not limited to the precise embodiments described, and that equipment and structures not described in detail are understood to be practiced as commonly known in the art; any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention will still fall within the protection scope of the technical solution of the present invention by those skilled in the art without departing from the technical solution of the present invention.
Claims (7)
1. The steel pipe pile foundation comprises a pile position drilling hole formed in the exposed rock stratum of the riverbed through a drilling machine, a steel pipe pile fixed in the pile position drilling hole, underwater concrete arranged in the steel pipe pile and between the steel pipe pile and the pile position drilling hole, connecting systems are arranged between every two groups of steel pipe piles arranged in the longitudinal bridge direction, connecting systems are also arranged between the steel pipe piles arranged in the transverse bridge direction, a Bailey beam limiter is arranged at the bottom of the Bailey beam to fix the Bailey beam above the steel pipe piles, and the bridge floor comprises transverse distribution beams uniformly arranged above the Bailey beam in the transverse bridge direction and longitudinal beams arranged above the transverse distribution beams in the longitudinal bridge direction, And the bridge deck is arranged above the longitudinal beams.
2. The deep water bare rock riverway steel trestle structure according to claim 1, wherein guard rails are arranged on the bridge deck.
3. The deep water bare rock riverway steel trestle structure as claimed in claim 2, wherein concrete overflow holes are formed in the side surface of the bottom of the steel pipe pile, so that concrete overflows in the steel pipe pile to fix the steel pipe pile, the concrete overflow holes are 30cm away from the bottom of the steel pipe pile, the number of the concrete overflow holes is 4, and the concrete overflow holes are formed in the side surface of the steel pipe pile in the longitudinal and transverse directions.
4. The deep water bare rock riverway steel trestle structure of claim 3, wherein the connecting system comprises an upper horizontal connecting system, a lower horizontal connecting system and a scissors connecting system, the upper horizontal connecting system and the lower horizontal connecting system are arranged along the height direction of the steel pipe pile, and the scissors connecting system is arranged between the upper horizontal connecting system and the lower horizontal connecting system.
5. The deep water bare rock riverway steel trestle structure of claim 4, wherein a pile cap butt strap is arranged at the top of the steel pipe pile.
6. The deep water bare rock riverway steel trestle structure of claim 5, wherein the bearing beam comprises two I-shaped steels arranged in the transverse direction and a connecting plate arranged between the two I-shaped steels.
7. The steel trestle structure for the riverway with the exposed rock stratum in the deep water as claimed in claim 6, wherein the connecting plate and the pile cap lapping plate are provided with guide holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567940.4U CN215051970U (en) | 2021-03-19 | 2021-03-19 | Steel trestle structure of deep water bare rock stratum river channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120567940.4U CN215051970U (en) | 2021-03-19 | 2021-03-19 | Steel trestle structure of deep water bare rock stratum river channel |
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| Publication Number | Publication Date |
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| CN215051970U true CN215051970U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120567940.4U Active CN215051970U (en) | 2021-03-19 | 2021-03-19 | Steel trestle structure of deep water bare rock stratum river channel |
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| Country | Link |
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| CN (1) | CN215051970U (en) |
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2021
- 2021-03-19 CN CN202120567940.4U patent/CN215051970U/en active Active
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