CN214782979U - Transition section structure of slate roadbed filler road bridge - Google Patents
Transition section structure of slate roadbed filler road bridge Download PDFInfo
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- CN214782979U CN214782979U CN202120536779.4U CN202120536779U CN214782979U CN 214782979 U CN214782979 U CN 214782979U CN 202120536779 U CN202120536779 U CN 202120536779U CN 214782979 U CN214782979 U CN 214782979U
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Abstract
The utility model discloses a slate roadbed filler road bridge changeover portion structure, include: the slab rock roadbed filler foundation layer, the water stabilization layer, the reinforced concrete slab lapping layer and the asphalt concrete pavement layer are sequentially arranged from bottom to top so as to realize the transition of a transition section structure of the slab rock roadbed filler road bridge from a flexible structure, a semi-rigid and semi-flexible structure to a rigid structure, thereby reducing the differential settlement between the abutment and the road roadbed; the asphalt concrete pavement layer is laid on the surfaces of the abutment, the reinforced concrete floor slab layer and the road bed, the reinforced concrete floor slab layer is laid on the surface of the water stabilization layer and is used for resisting vehicle load, the water stabilization layer is laid on the surface of the slab rock bed filler foundation bed, and the water stabilization layer adopts a trapezoid structure with the thickness gradually increased from the road bed to the abutment. The utility model discloses a slate road bed filler road bridge changeover portion structure, difference that can be effectual between control abutment and the road bed subsides, plays good vehicle jump head phenomenon that slows down.
Description
Technical Field
The utility model relates to a roadbed structure consolidates technical field, in particular to slate roadbed filler road bridge changeover portion structure is related to.
Background
In the modern highway bridge construction technology, the structure of the joint of a road and a bridge is an important engineering structure, and the design and construction level of the structure directly determine the overall quality of the highway. The overall comfort and safety guarantee of vehicles in the road driving process are influenced by the quality of construction quality at the road and bridge joint, and the condition that the vehicle jumps at the bridge head can be effectively reduced by high-quality construction quality. In the aspect of construction technology, highway construction and bridge construction are two different construction modes, a road and a bridge are two different structures, most obviously, the foundation forms of the road and the bridge are different, the rigidity of the foundation is obviously different, and the road and the bridge can generate differential settlement at the position where the road and the bridge are connected due to the difference of the foundation forms and the rigidity under the long-term vehicle load action. From the basic nature, the overall structure of a road is a flexible structure, whereas a bridge is a rigid structure. Therefore, under the action of long-term vehicle load, the settlement of the road is greater than that of the bridge, so that the condition of bridge head dislocation occurs, when the vehicle runs onto the bridge from the road, the vehicle jumps at the bridge head, and the service life of the road and the bridge is influenced to a certain extent. The metamorphic soft rock has the advantages of strong weathering degree, internal microcrack development, low water intensity and easy expansion and disintegration, after excavation and transportation and during the rolling process of a bulldozer and a road roller, particles are broken seriously, sometimes the rolling surface layer is powdery, a mud skin phenomenon is generated under the repeated action of load after rain, a construction sidewalk filled on site is muddy and becomes slurry after rain, and the settlement is serious, so if the metamorphic soft rock is used as a filling material of a embankment, how to compact the large-particle soft rock filling material, how to ensure the construction quality, and how to detect the compaction quality is the problem which should be comprehensively considered during design and construction. Under the conditions of rising water level of a river bank for erosion and scouring, flood infiltration in mountain areas and rainfall infiltration and scouring on the earth surface, whether the deteriorated soft rock filler is seriously settled after meeting water or not, how to ensure the stability of a roadbed, how to adopt waterproof drainage measures and the like are all problems to be considered. From the perspective of settlement amount, construction departments must carry out multi-azimuth experiments on the road and bridge transition section connecting structure to verify and build a road and bridge transition connecting structure with the minimum differential settlement, so that the situations of bridge head dislocation and bridge head vehicle jumping are reduced as much as possible, driving is comfortable, and the durability service life of the road and bridge is met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a slate roadbed filler road bridge changeover portion structure to solve the wrong platform of crossing bridge roof beam tip and road junction changeover portion and the situation of bridgehead skip, reduce the comfortable sensation of driving a vehicle, and reduce the road bed life's of road bridge changeover portion technical problem.
The utility model adopts the technical scheme as follows:
the utility model provides a slate road bed filler road bridge changeover portion structure is in between abutment and the road bed, is equipped with the support on the abutment, and the support supports bridge structures roof beam, includes: the slab rock roadbed filler foundation layer, the water stabilization layer, the reinforced concrete slab lapping layer and the asphalt concrete pavement layer are sequentially arranged from bottom to top so as to realize the transition of a transition section structure of the slab rock roadbed filler road bridge from a flexible structure, a semi-rigid and semi-flexible structure to a rigid structure, thereby reducing the differential settlement between the abutment and the road roadbed; the asphalt concrete pavement layer is laid on the surfaces of the abutment, the bridge structure beam, the reinforced concrete floor slab layer and the road subgrade, the reinforced concrete floor slab layer is laid on the surface of the water-stable layer and is used for resisting vehicle load, point moving load uniform distribution of the vehicle is converted into surface load and is transmitted to the water-stable layer and the slab subgrade filler foundation layer, the water-stable layer is laid on the surface of the slab subgrade filler foundation layer, the water-stable layer adopts a trapezoidal structure with the thickness gradually increased from the road subgrade to the abutment direction, gradient transition is presented by the rigidity of the water-stable layer, and accordingly the settlement amount of the slab subgrade filler foundation layer is reduced.
Further, a contact transition surface of a slope structure is formed between the bottom surface of the water stabilization layer and the top surface of the base layer of the slate roadbed filler; the top surface of the water stabilization layer is horizontally attached to the bottom surface of the reinforced concrete floor slab layer; one side of the water stabilization layer, which is in contact with the road subgrade, is a first end surface, one side of the water stabilization layer, which is in contact with the bridge abutment, is a second end surface, and the thickness of the first end surface is smaller than that of the second end surface.
Further, the thickness of the first end face is 600 mm-1000 mm; and/or the thickness of the second end face is 1600 mm-2000 mm.
Further, the reinforced concrete floor slab layer comprises a reinforced concrete floor slab; one end of the abutment close to the road bed extends upwards vertically to form a beam support, one end of the reinforced concrete access panel is connected with the road bed, and the other end of the reinforced concrete access panel is supported on the beam support.
Furthermore, the reinforced concrete access slab adopts a cast-in-place concrete access slab; the reinforced concrete butt strap is formed by splicing and combining a plurality of butt strap units, and the plurality of butt strap units are laid on the water stabilization layer along the horizontal direction of the transition section structure of the slate roadbed filler road bridge.
Further, the thickness of the cast-in-place concrete slab is 400 mm; the butt strap unit adopts a bidirectional reinforcing bar C16@200mm, the concrete strength grade is C25, and the concrete protective layer is 20 mm-35 mm.
Furthermore, an expansion joint is arranged between two adjacent butt strap units, and a buffer layer is filled in the expansion joint; the width of the expansion joint is 8 mm-12 mm; the buffer layer adopts one of a bamboo glue layer, a foam layer or a pitch hemp layer.
Furthermore, be equipped with the horizontal expansion joint that is used for holding the dowel bar between reinforced concrete attachment strap and the road bed, the one end of dowel bar is worn to establish inside and inlay in the reinforced concrete attachment strap of horizontal expansion joint, and the other end of dowel bar is in the road bed.
Furthermore, the water stabilization layer is formed by compacting crushed slate roadbed materials, and the degree of compaction is greater than or equal to 96%.
Further, the longitudinal width of the transition section structure of the slab rock roadbed filling road bridge is 7000 mm-9000 mm.
The utility model discloses following beneficial effect has:
the utility model discloses a slate roadbed filler road bridge changeover portion structure, through at abutment and road bed direct design slate roadbed filler road bridge changeover portion structure, and slate roadbed filler road bridge changeover portion structure is multi-level structure, from supreme laying slate roadbed filler ground basic unit, water stabilization layer, reinforced concrete floor slab layer, asphalt concrete pavement layer in proper order down, compare with current road bridge changeover portion connection structure, increased the rigidity of road bridge changeover portion. The reinforced concrete floor slab adopting the rigid structure is provided with the water stabilization layer paved on the lower part of the reinforced concrete floor slab, the thickness of the water stabilization layer from the base end of a road to the abutment end is gradually increased, the condition that the sedimentation amount is large after the construction of the base layer of the plate rock roadbed filler is improved, and the sedimentation value from the base end of the road to the abutment end is gradually reduced, so that the transition of the transition section structure of the plate rock roadbed filler road bridge from a flexible structure and a semi-rigid and semi-flexible structure to a rigid structure is realized, the differential sedimentation between the abutment and the road roadbed can be effectively controlled, the good vehicle head jumping slowing-down phenomenon is realized, the comfortable driving feeling is brought to people when vehicles run on the bridge from the road, and the service life of the roadbed of the transition section of the road bridge can be prolonged.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is the transition section structure schematic diagram of the slab rock roadbed filling road bridge of the preferred embodiment of the utility model.
The reference numbers illustrate:
1. an abutment; 2. a road bed; 3. a support; 4. a bridge structural beam; 5. a slate roadbed filler foundation layer; 6. a water-stable layer; 7. a reinforced concrete floor slab layer; 8. an asphalt concrete pavement layer; 9. an expansion joint; 10. and (5) transversely expanding the seam.
Detailed Description
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 invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Fig. 1 is the transition section structure schematic diagram of the slab rock roadbed filling road bridge of the preferred embodiment of the utility model.
As shown in fig. 1, the slate roadbed filler road bridge transition section structure of this embodiment is between abutment 1 and road roadbed 2, is equipped with support 3 on the abutment 1, and support 3 supports bridge structure roof beam 4, includes: the slab rock roadbed filler foundation layer 5, the water stabilization layer 6, the reinforced concrete slab lapping layer 7 and the asphalt concrete pavement layer 8 are sequentially arranged from bottom to top so as to realize the transition of a transition section structure of the slab rock roadbed filler road bridge from a flexible structure, a semi-rigid and semi-flexible structure to a rigid structure, thereby reducing differential settlement between the abutment 1 and the road roadbed 2; asphalt concrete pavement layer 8 lays in abutment 1, bridge structure roof beam 4, the surface of reinforced concrete floor slab layer 7 and road bed 2, reinforced concrete floor slab layer 7 lays in the surface of water stabilization layer 6 and is used for resisting the vehicle load, in order to change the point removal load equipartition of vehicle into the surface load and transmit to water stabilization layer 6 and slate roadbed filler foundation 5, water stabilization layer 6 lays in the surface of slate roadbed filler foundation 5, water stabilization layer 6 adopts the trapezoidal structure that thickness increases progressively from road bed 2 to abutment 1 direction, in order to realize that the rigidity of water stabilization layer 6 presents the gradient transition, thereby reduce the settlement volume of slate roadbed filler foundation 5.
The utility model discloses a slate roadbed filler road bridge changeover portion structure, through at abutment 1 with 2 direct design slate roadbed filler road bridge changeover portion structures of road bed, and slate roadbed filler road bridge changeover portion structure is multi-level structure, from supreme laying slate roadbed filler ground basic unit 5 in proper order down, the water stabilization layer 6, reinforced concrete takes plate layer 7, asphalt concrete road surface layer 8, compare with current road bridge changeover portion connection structure, increased the rigidity of road bridge changeover portion. Adopt the reinforced concrete floor slab layer 7 of rigid structure, its lower part is laid water stabilization layer 6, water stabilization layer 6 increases gradually from the thickness of road bed 2 end to abutment 1 end, the great situation of settlement volume after having improved the construction of slate roadbed filler foundation 5, and from road bed 2 end to abutment 1 end settlement value reduce gradually, realize that slate roadbed filler road bridge changeover portion structure passes through from flexible construction, half just half gentle structure to rigid construction, can effectual control difference settlement between abutment 1 and the road bed 2, play good vehicle jump head phenomenon that slows down, realize that the vehicle brings the comfortable sensation of driving for people when going to the bridge by the road, also can increase the road bed life of road bridge changeover portion.
In the embodiment, a contact transition surface of a slope structure is formed between the bottom surface of the water stabilization layer 6 and the top surface of the slate roadbed filler foundation layer 5; the top surface of the water stabilizing layer 6 is horizontally attached to the bottom surface of the reinforced concrete floor slab layer 7; one side of the water stabilization layer 6, which is in contact with the road subgrade 2, is a first end surface, one side of the water stabilization layer 6, which is in contact with the bridge abutment 1, is a second end surface, and the thickness of the first end surface is smaller than that of the second end surface.
Above-mentioned slate roadbed filler basement layer 5 is located this changeover portion junction roadbed structure's bottom, it is the natural foundation bearing layer of bottom, slate roadbed filler basement layer 5 adopts slate roadbed filler, it belongs to rotten soft rock, it is strong to have the degree of weathering, inside crazing line develops, meet the water strength step-down, easy inflation is disintegrated, after the excavation transportation and bulldozer and road roller process of rolling, the granule is broken seriously, it is likepowder sometimes to roll the top layer, can produce the mud skin phenomenon under the load repetitive action behind the rain, it is more serious to sink to warp to descend under the long-term load effect. Therefore, the deteriorated soft rock is used as roadbed filler, needs to be compacted, and can be combined with a rigid structure for use, so that the settlement deformation of the roadbed and the road surface can be reduced. Because slate roadbed filler foundation 5 is the natural foundation of bottom, according to the road surface design elevation, detach 8 thickness of bituminous concrete pavement layer, 7 thickness of reinforced concrete ply layer, 6 thickness of water stabilization layer, the surplus is 5 thicknesses of slate roadbed filler foundation, excavates according to corresponding design elevation and size and fills, rolls the flattening closely knit again. Form the contact transition face of slope structure between the bottom surface of water stabilization layer 6 and the 5 top surfaces of slate roadbed filler foundation, the contact transition face of this slope structure is the process that the rigidity of water stabilization layer 6 changes gradually, and water stabilization layer 6 rolls once every 300mm manual work, and the top surface of water stabilization layer 6 and the bottom surface level laminating of reinforced concrete ply 7 to the realization will turn into the even transmission of load of face to water stabilization layer 6 and slate roadbed filler foundation 5.
In the embodiment, the thickness of the first end surface is 600 mm-1000 mm; and/or the thickness of the second end face is 1600 mm-2000 mm. Preferably the first end face has a thickness of 800mm and the second end face has a thickness of 1800mm, transitioning from a height of 800mm to 1800 mm.
In this embodiment, the reinforced concrete floor layer 7 includes a reinforced concrete floor; one end of the abutment 1 close to the road bed 2 extends upwards vertically to form a beam support, one end of the reinforced concrete access panel is connected with the road bed 2, and the other end of the reinforced concrete access panel is supported on the beam support. The abutment 1 is provided with the beam support to support the reinforced concrete butt strap, and due to the fact that the rigidity and the bearing capacity of the abutment 1 are high, differential settlement between the reinforced concrete butt strap and the reinforced concrete butt strap is effectively reduced through the beam support.
In the embodiment, the reinforced concrete access slab adopts a cast-in-place concrete access slab; the reinforced concrete butt strap is formed by splicing and combining a plurality of butt strap units, and the plurality of butt strap units are laid on the water stabilization layer 6 along the horizontal direction of the transition section structure of the slate roadbed filler road bridge. The reinforced concrete butt strap is supported above the water stabilization layer 6, the cast-in-place reinforced concrete butt strap has good rigidity, can resist the load action of a vehicle, has good integrity, can realize the effect of uniformly distributing point moving loads of the vehicle and converting the point moving loads into surface loads to act on the water stabilization layer 6 below, and effectively relieves the stress concentration phenomenon of the water stabilization layer 6.
Preferably, the thickness of the cast-in-place concrete slab is 400 mm; the butt strap unit adopts a bidirectional reinforcing bar C16@200mm, the concrete strength grade is C25, and the concrete protective layer is 20 mm-35 mm. The thickness of the butt strap unit is 400mm, the bidirectional reinforcement C16@200mm is adopted, the concrete strength grade is C25, the concrete protective layer is 20 mm-35 mm, the butt strap unit is 2000mm, and when the longitudinal width of the transition section structure of the slab rock roadbed filler road bridge is 8000mm, 4 pieces of butt strap unit slab rock roadbed filler road bridge transition section structures are designed in the longitudinal direction, so that the width of the reinforced concrete butt strap is consistent with the width of the corresponding butt strap unit slab rock roadbed filler road bridge transition section structure.
In this embodiment, an expansion joint 9 is arranged between two adjacent butt strap units, and the expansion joint 9 is filled with a buffer layer; the width of the expansion joint 9 is 8 mm-12 mm. The buffer layer adopts one of a bamboo glue layer, a foam layer or a pitch hemp layer. After the reinforced concrete floor slab reaches the design strength age, an expansion joint 9 is arranged between two adjacent floor slab units during construction, the damage of the thermal expansion and cold contraction deformation of the floor slab units to the reinforced concrete floor slab 7 can be effectively reduced, the width of the expansion joint 9 is 8-12 mm, preferably, the width of the expansion joint 9 is 10mm, and the durability and the service life of the cast-in-place reinforced concrete floor slab are improved. The expansion joint 9 is filled with a buffer layer, the buffer layer adopts one of a bamboo glue layer, a foam layer or a pitch hemp layer, and preferably, the buffer layer adopts the pitch hemp layer.
In this embodiment, a transverse expansion joint 10 for accommodating the dowel bar is arranged between the reinforced concrete access panel and the road bed 2, one end of the dowel bar is inserted into the transverse expansion joint 10 and embedded in the reinforced concrete access panel, and the other end of the dowel bar is positioned in the road bed 2. The transverse expansion joint 10 is arranged at the joint of the reinforced concrete access panel and the road bed 2, the dowel bars are arranged inside the transverse expansion joint 10, and the dowel bars are arranged by adopting phi 16 steel bars at intervals of 500 mm. The force transmission rods are arranged, so that the reinforced concrete access panel can be tightly connected with the adjacent road subgrade 2, the transmission distribution of mechanics is realized, the stress of the reinforced concrete access panel can be transmitted to the road subgrade 2, the stress of the reinforced concrete access panel is effectively reduced, and the deformation of the water stabilization layer 6 is effectively slowed down. One end of the dowel bar and the reinforced concrete access slab are cast in situ together, and the other end of the dowel bar is coated with asphalt and is inserted into the road bed 2.
In the embodiment, the water stabilization layer 6 is formed by compacting crushed slate roadbed materials, and the degree of compaction is greater than or equal to 96%. The water stabilization layer 6 is formed by filling and paving slate materials, the excavated slate roadbed materials are crushed and doped with cement accounting for 3-8% of the mass percentage, the mixture is backfilled and then compacted through rolling, the strength and rigidity of the roadbed can be improved, the water stabilization layer 6 is manually rolled once every 300mm, the compaction degree is greater than or equal to 96%, the settlement caused by long-term load in the later period is reduced, the thickness of the water stabilization layer 6 from the end of the roadbed 2 to the end of the bridge abutment 1 is gradually increased, therefore, the rigidity also has a gradually changing process, the upper structure load is borne by combining the bottom slate roadbed filler foundation layer 5, the transition from flexibility to semi-rigid and semi-flexible to rigid and the rigid finally can be realized, and the characteristics of reducing uneven settlement and large settlement are achieved.
In this embodiment, the longitudinal width of the transition section structure of the slate roadbed filling road bridge is 7000mm to 9000 mm.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A transition section structure of a slab rock roadbed filler road bridge is positioned between an abutment (1) and a road roadbed (2), a support (3) is arranged on the abutment (1), the support (3) supports a bridge structure beam (4), and the transition section structure is characterized in that,
the method comprises the following steps: the bridge is characterized by comprising a slate roadbed filler foundation layer (5), a water stabilization layer (6), a reinforced concrete floor slab layer (7) and an asphalt concrete pavement layer (8) which are sequentially arranged from bottom to top, so that the transition of a transition section structure of the slate roadbed filler bridge from a flexible structure, a semi-rigid and semi-flexible structure to a rigid structure is realized, and the differential settlement between the abutment (1) and the road roadbed (2) is reduced;
the asphalt concrete pavement layer (8) is laid on the surfaces of the abutment (1), the bridge structure beam (4), the reinforced concrete floor slab (7) and the road foundation (2),
the reinforced concrete floor slab layer (7) is laid on the surface of the water stabilization layer (6) and used for resisting vehicle load so as to uniformly distribute point moving load of a vehicle, convert the point moving load into surface load and transmit the surface load to the water stabilization layer (6) and the slate roadbed filler foundation layer (5),
the water stabilization layer (6) is laid on the surface of the slate roadbed filler foundation layer (5), the water stabilization layer (6) adopts the thickness to follow the trapezoid structure of which the direction of the bridge abutment (1) is gradually increased from the road roadbed (2) so as to realize that the rigidity of the water stabilization layer (6) presents gradient transition, thereby reducing the settlement amount of the slate roadbed filler foundation layer (5).
2. The slate roadbed packed road bridge transition section structure of claim 1,
a contact transition surface of a slope structure is formed between the bottom surface of the water stabilization layer (6) and the top surface of the slate roadbed filler foundation layer (5);
the top surface of the water stabilization layer (6) is horizontally attached to the bottom surface of the reinforced concrete floor slab layer (7);
one side that water is steady layer (6) with road bed (2) contact is first terminal surface, water steady layer (6) with one side that abutment (1) contact is the second terminal surface, the thickness of first terminal surface is less than the thickness of second terminal surface.
3. The slate roadbed packed road bridge transition section structure of claim 2,
the thickness of the first end face is 600 mm-1000 mm; and/or
The thickness of the second end face is 1600 mm-2000 mm.
4. The slate roadbed packed road bridge transition section structure of claim 1,
the reinforced concrete floor slab layer (7) comprises a reinforced concrete floor slab;
the bridge abutment (1) is close to the one end of road bed (2) forms the beam support along vertical upwards extending, the one end of reinforced concrete access panel with road bed (2) meet, the other end of reinforced concrete access panel supports on the beam support.
5. The slate roadbed packed road bridge transition section structure of claim 4,
the reinforced concrete access slab adopts a cast-in-place concrete access slab;
the reinforced concrete butt strap is formed by splicing and combining a plurality of butt strap units, and the butt strap units are laid on the water stabilization layer (6) along the horizontal direction of the transition section structure of the slate roadbed filler road bridge.
6. The slate roadbed packed road bridge transition section structure of claim 5,
the thickness of the cast-in-place concrete slab is 400 mm;
the butt strap unit adopts a bidirectional reinforcing bar C16@200mm, the concrete strength grade is C25, and the concrete protective layer is 20 mm-35 mm.
7. The slate roadbed packed road bridge transition section structure of claim 5,
an expansion joint (9) is arranged between two adjacent butt strap units, and a buffer layer is filled in the expansion joint (9);
the width of the expansion joint (9) is 8-12 mm;
the buffer layer adopts one of bamboo glue film, foam layer or pitch numb silk layer.
8. The slate roadbed packed road bridge transition section structure of claim 4,
the reinforced concrete access panel with be equipped with between road bed (2) and be used for holding horizontal expansion joint (10) of dowel steel, the one end of dowel steel is worn to establish horizontal expansion joint (10) is inside and inlay in the reinforced concrete access panel, the other end of dowel steel is in road bed (2).
9. The slate roadbed packed road bridge transition section structure of claim 1,
the water stabilization layer (6) is formed by compacting crushed slate roadbed materials, and the degree of compaction is greater than or equal to 96%.
10. The slate roadbed packed road bridge transition section structure of claim 1,
the longitudinal width of the transition section structure of the slate roadbed filling road bridge is 7000 mm-9000 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120536779.4U CN214782979U (en) | 2021-03-15 | 2021-03-15 | Transition section structure of slate roadbed filler road bridge |
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| CN202120536779.4U CN214782979U (en) | 2021-03-15 | 2021-03-15 | Transition section structure of slate roadbed filler road bridge |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114319001A (en) * | 2021-12-31 | 2022-04-12 | 中交水利水电建设有限公司 | Method for solving problem of insufficient soil covering thickness when pipe jacking construction in soft soil area passes through existing road |
| GB2610859A (en) * | 2021-09-20 | 2023-03-22 | Laing Orourke Plc | Flexible bridge abutment |
-
2021
- 2021-03-15 CN CN202120536779.4U patent/CN214782979U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2610859A (en) * | 2021-09-20 | 2023-03-22 | Laing Orourke Plc | Flexible bridge abutment |
| GB2610859B (en) * | 2021-09-20 | 2024-02-07 | Laing Orourke Plc | Flexible bridge abutment |
| CN114319001A (en) * | 2021-12-31 | 2022-04-12 | 中交水利水电建设有限公司 | Method for solving problem of insufficient soil covering thickness when pipe jacking construction in soft soil area passes through existing road |
| CN114319001B (en) * | 2021-12-31 | 2024-03-12 | 中交水利水电建设有限公司 | Method for solving insufficient soil covering thickness when pipe jacking construction in soft soil area passes through existing road |
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