CN220284876U - Large-diameter pipeline crossing subway station foundation pit and box culvert suspension structure - Google Patents
Large-diameter pipeline crossing subway station foundation pit and box culvert suspension structure Download PDFInfo
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- CN220284876U CN220284876U CN202321587480.7U CN202321587480U CN220284876U CN 220284876 U CN220284876 U CN 220284876U CN 202321587480 U CN202321587480 U CN 202321587480U CN 220284876 U CN220284876 U CN 220284876U
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- 239000000725 suspension Substances 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 74
- 239000010959 steel Substances 0.000 claims abstract description 74
- 239000004567 concrete Substances 0.000 claims abstract description 55
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 7
- 238000012986 modification Methods 0.000 abstract description 7
- 230000005012 migration Effects 0.000 abstract description 5
- 238000013508 migration Methods 0.000 abstract description 5
- 238000011065 in-situ storage Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to a large-diameter pipeline crossing a subway station foundation pit and box culvert suspension structure, which comprises a support structure and a suspension protection structure, wherein the support structure comprises guard piles, concrete lattice columns and steel supports; the suspension protection structure comprises a reinforced concrete supporting beam, a concrete connecting beam, a bailey beam, an H-shaped steel distribution beam and lifting lugs. Concrete lattice columns are arranged on two sides of a pipeline and a box culvert, a reinforced concrete supporting beam is arranged above the concrete lattice columns, the reinforced concrete supporting beam is connected into a whole through a longitudinal concrete connecting beam, a bailey beam and a distribution beam are arranged above the reinforced concrete supporting beam, lifting lugs are arranged at the bottom of the distribution beam, and in-situ suspension protection is realized by respectively penetrating the lower parts of the pipeline and the box culvert and the lifting lugs on the distribution beam through steel wire ropes and brackets. The utility model has small influence on foundation pit and surrounding environment, can suspend a plurality of pipelines or box culverts, has high adaptability, does not need pipeline migration and modification during construction, reduces the procedure conversion flow, effectively shortens the construction period, and saves the cost of pipeline and box culvert migration and modification and recovery.
Description
Technical Field
The utility model relates to the technical field of subway station foundation pit construction, in particular to a large-diameter pipeline crossing a subway station foundation pit and a box culvert suspension structure.
Background
In the urban rail transit construction process, the subway generally needs to pass through various pipelines or box culverts such as electric power, rain sewage, water supply and drainage and the like which are buried above the subway. Before construction, the pipelines or box culverts need to be subjected to permanent relocation or temporary relocation treatment. However, these measures are greatly affected by the surrounding environment, and part of the pipeline is diverted or increased in corner after being relocated, so that the maintenance of the pipeline is inconvenient in the later period. In addition, the method needs to coordinate with multiple departments to compile a migration scheme, and has the advantages of complex flow, high construction cost and long period. Moreover, these measures also bring inconvenience to the lives of surrounding residents.
The problems can be well solved by in-situ suspension protection, but the existing suspension protection technology has complex construction process, neglects the stress stability of the deep foundation pit on the guard pile, and has great potential safety hazard; for large-caliber full-load pipelines or box culverts, the top of the suspension structure is stressed intensively, and the rigidity and strength of the suspension system are required to be ensured. In addition, the objects protected by the traditional suspension system are mainly pipelines, and the pipelines and the box culverts are damaged by direct contact. Therefore, the utility model provides a suspension protection system and a suspension protection method for large-diameter pipelines and box culverts crossing a subway station foundation pit, so as to solve the defects in the prior art.
Disclosure of Invention
In view of the defects in the prior art, the utility model provides a large-diameter pipeline crossing a subway station foundation pit and box culvert suspension structure, and through the structure, the in-situ protection of the pipeline can be realized, the transition and modification treatment is not needed in the subway construction process, and meanwhile, the structure is stable.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a suspension structure crossing a large-diameter pipeline of a subway station foundation pit and a box culvert comprises a supporting structure and a suspension protection structure;
the supporting structure comprises guard piles, concrete lattice columns and steel supports, wherein the guard piles are arranged on two sides of a pipeline, the concrete lattice columns are arranged between the guard piles and the pipeline, and the steel supports are supported between the guard piles corresponding to two sides of the pipeline;
the suspension protection structure comprises a reinforced concrete supporting beam, a concrete connecting beam, a bailey beam, a distribution beam and lifting lugs; the reinforced concrete supporting beam is fixed at the tops of the fender post and the concrete lattice column, and a longitudinal concrete connecting beam is arranged between the fender post and the concrete lattice column; the bailey beam is erected on a reinforced concrete supporting beam, the distribution beam is erected on the bailey beam, and lifting lugs are arranged on the distribution beam.
The concrete lattice column comprises a steel lattice column and a bored pile foundation, wherein the steel lattice column is arranged on the bored pile foundation, a column top anchor plate, anchor bars and stiffening rib plates are arranged at the top end of the concrete lattice column, the column top anchor plate is arranged at the top of the concrete lattice column, the anchor bars extend out of the concrete lattice column, and the stiffening rib plates are arranged at right-angle positions formed by the column top anchor plate and the concrete lattice column.
The concrete lattice column is provided with a lacing plate, the lacing plate is fixedly connected with an external steel bracket, the channel steel is arranged above the steel bracket, the channel steel is fixedly connected with the steel bracket, and the channel steel is connected with the concrete lattice column on the same side.
The Bailey beam is manufactured by adopting a 321-type assembled highway steel bridge truss.
The distribution beam is H-shaped steel.
The lifting lug adopts a D-shaped shackle, a steel wire rope penetrates through a pipeline or a box culvert to be connected with the lifting lug, and a protective liner is arranged at the contact position of the steel wire rope and the pipeline.
And angle steel is arranged at the transfer position of the bottom of the box culvert.
And a chain block is arranged on the steel wire rope.
The utility model has the beneficial effects that:
1. the integrity and stability of the structure are enhanced through the supporting of the guard piles and the concrete lattice columns on the reinforced concrete supporting beams and the longitudinal connecting action of the concrete connecting beams.
2. And constructing retaining walls and steel supports between piles below the pipelines and the box culverts, controlling the deformation of the foundation pit, and reducing the disturbance to surrounding soil.
3. Under the synergistic effect of the reinforced concrete supporting beam, the concrete connecting beam, the bailey beam and the distributing beam, the stress concentration of the structure is avoided, and the safety is high.
4. The protective liner is arranged at the contact position of the steel wire rope and the pipeline to prevent the steel wire rope from damaging the pipeline anti-corrosion layer, and the angle steel is arranged at the corner position at the bottom of the box culvert to wrap the pipeline, so that stress concentration is avoided.
5. The system can ensure that important pipeline migration and modification are not needed during structural construction, avoids inconvenient life and complex water-stopping procedures of urban residents caused by water-stopping of the water supply pipe, reduces the procedure conversion flow, effectively shortens the construction period, and saves the cost of pipeline and box culvert migration, modification and recovery. In addition, the device has still reduced the influence to canal flood control ability in flood season.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a concrete lattice column design.
Fig. 3 truss unit and truss steel pin.
FIG. 4A section view of a pipeline and box culvert suspension protection
Fig. 5 is a detailed view of the distribution beam and lifting lug node.
FIG. 6 is a detailed view of the protection of the water pipe corrosion protection layer.
Marked in the figure as: the concrete pile comprises a fender pile 1, a concrete lattice column 2, anchor bars 21, a column top anchor plate 22, stiffening rib plates 23, a batten plate 24, channel steel 25, steel corbels 26, a bored pile foundation 27, galvanized water stop steel plates 28, angle steel 29, a reinforced concrete support beam 3, a steel support 4, a concrete connecting beam 5, a bailey beam 6, a male head 61, a female head 62, a steel pin 63, a safety clip 64, a distribution beam 7, lifting lugs 8, shackles 81, 63t shackles 811, 20t shackles 812, a hanging bar 9, brackets 10, steel ropes 11, box culverts 12, pipelines 13 and protection liners 14.
Detailed Description
The specific structure and the technical effects of the present utility model will be further described with reference to the accompanying drawings.
Examples
As shown in fig. 1 to 6, a large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit of the present utility model includes a support structure and a suspension protection structure. The support structure comprises a fender post 1, a concrete lattice column 2 and a steel support 4. The fender posts 1 are arranged on two sides of a pipeline, retaining walls are arranged between adjacent fender posts 1 on the same side, and corresponding fender posts on the opposite sides are supported by steel supports 4. Concrete lattice columns 2 are arranged between the fender posts 1 and pipelines or box culverts, and the concrete lattice columns 2 on the same side are fixedly connected by using channel steel 25.
The suspension protection structure comprises a reinforced concrete supporting beam 3, a concrete connecting beam 5, a bailey beam 6, a distribution beam 7 and lifting lugs 8, wherein the reinforced concrete supporting beam 3 is fixed at the tops of the fender post 1 and the concrete lattice column 2, and is formed into a whole through the longitudinal concrete connecting beam 5 for providing vertical supporting force. The bailey beam 6 is erected on the reinforced concrete support beam 3, and a distribution beam 7 is arranged above the bailey beam for installing lifting lugs 8 to form a suspension structure.
Specifically, referring to fig. 1, two ends of a reinforced concrete supporting beam 3 are fixed on a fender post 1, and a concrete lattice column 2 is arranged in a foundation pit to serve as a support, and is longitudinally connected through a concrete connecting beam 5, so that the integral structure is enhanced, and the stability and the vertical bearing function of the structure are ensured.
Specifically, referring to fig. 2, the concrete lattice column 2 is composed of a steel lattice column and a bored pile foundation 27, and the top end of the concrete lattice column 2 is provided with anchor bars 21, column top anchor plates 22 and stiffening ribs 23 for installing the reinforced concrete support beam 3 and reinforcing the top structure.
Specifically, referring to fig. 2, the batten plates 24 of the concrete lattice column 2 are externally connected with steel corbels 26, channel steel 25 is arranged above the steel corbels 26 as longitudinal connecting beams, and a plurality of steel supports 4 are erected above the longitudinal connecting beams for improving stability of the foundation pit.
Specifically, referring to fig. 3, the beret beam 6 is a 321-type assembled highway steel bridge truss, and is erected above the reinforced concrete supporting beam 3, the truss is formed by welding an upper chord member, a lower chord member, a vertical rod and an inclined strut, when two sections of trusses are spliced, a male head 61 of one section is inserted into a female head 62 of the other section, a pin hole is aligned, a steel pin 63 is inserted, and a safety card 64 is inserted during installation, so that the pin is prevented from falling off, and all trusses are spliced into a whole through the pin hole and the steel pin 63.
Specifically, referring to fig. 4-6, the distribution beam 7 above the beret beam 6 is composed of HN700×300H steel, and as a hanging distribution beam, the bottom is provided with lifting lugs 8, and the distribution beam is arranged at a spacing of 3m by adopting a 20tD shackle 811 and a wire rope 11 to suspend the pipeline 13, respectively, at a spacing of 3 m. Each steel wire rope 11 is provided with 1 chain block for pre-tightening the steel wire ropes 11 and eliminating deflection errors of the bailey beam 6. A protective liner 14 is arranged at the contact position of the steel wire rope 11 and the pipeline 13 to prevent the steel wire rope 11 from damaging the anticorrosive coating of the pipeline 13; two 63tD shackles 812 are connected with a hanging bar 9, I-steel is arranged at the bottom of a box culvert 12 to serve as a joist 10, and the hanging bar 9 is connected with the joist 10. Angle steel wrapping is arranged at the corner position at the bottom of the box culvert 12, so that stress concentration is avoided.
The construction method comprises the following steps:
(1) And determining the positions and depths of the pipeline 13 and the box culvert 12, applying the guard piles 1 and the concrete lattice columns 2, manually exploring and digging piles on two sides of the pipeline 13 and the box culvert 12, and drilling holes by adopting rotary drilling after no pipeline is confirmed.
(2) After the construction of the fender pile 1 and the concrete lattice column 2 is completed, firstly excavating surface soil, then chiseling off the pile head of the fender pile 1, and constructing the reinforced concrete supporting beam 3 and the concrete connecting beam 5 after the bearing capacity of the pile foundation is detected to be qualified.
(3) The assembly of the bailey beams 6 is carried out in a stacking place, the bailey beams 6 are assembled through pin holes and steel pins 63, after the axis and the level of the assembled bailey beams 6 are rechecked and meet the requirements, the bailey beams are hung to the appointed position of the reinforced concrete support beam 3 for installation, and the central lines of the two bailey beams 6 are required to be aligned with the two side walls of the pipeline 13 and the box culvert 12.
(4) After the reinforced concrete supporting beam 3 reaches the strength of the design value, the distribution beam 7 is installed and suspended, the space where the steel wire ropes 11 and the brackets 10 pass through is dug manually, the steel wire ropes 11 and the suspenders 9 are effectively connected with the lifting lugs 8, each steel wire rope 11 is provided with 1 rope tightener, and the steel wire ropes 11 are tightened through the rope tighteners until all the steel wire ropes are completed.
(5) After the suspension is completed, the bottom soil of the pipeline 13 and the box culvert 12 is continuously excavated, and the soil retaining wall between piles and the steel support 4 are applied to the bottom area.
The principle of the utility model is that the guard piles, the concrete lattice columns and the steel supports form a supporting structure, and then the guard piles and the concrete lattice columns are supported by the reinforced concrete supporting beams to form a firmer three-cudray structure. By arranging the Bailey beam on the reinforced concrete supporting beam and arranging the distribution beam on the Bailey beam, the force on the distribution beam is dispersed to the reinforced concrete supporting beam, and the stress concentration is avoided. The arrangement of the channel steel can enable the concrete lattice columns on the same side to form a whole, so that the stability of the structure is guaranteed.
The above-described embodiments are only preferred embodiments of the present utility model, and are not limited thereto, and it will be apparent to those skilled in the art that modifications and variations can be made thereto without departing from the principles of the present utility model, and these modifications and variations should be regarded as being within the scope of the utility model.
Claims (9)
1. The utility model provides a span subway station foundation ditch major diameter pipeline and box culvert suspension structure which characterized in that: comprises a supporting structure and a suspension protection structure;
the supporting structure comprises guard piles, concrete lattice columns and steel supports, wherein the guard piles are arranged on two sides of a pipeline, the concrete lattice columns are arranged between the guard piles and the pipeline, and the steel supports are supported between the guard piles corresponding to two sides of the pipeline;
the suspension protection structure comprises a reinforced concrete supporting beam, a concrete connecting beam, a bailey beam, a distribution beam and lifting lugs; the reinforced concrete supporting beam is fixed at the tops of the fender post and the concrete lattice column, and a longitudinal concrete connecting beam is arranged between the fender post and the concrete lattice column; the bailey beam is erected on a reinforced concrete supporting beam, the distribution beam is erected on the bailey beam, and lifting lugs are arranged on the distribution beam.
2. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: the concrete lattice column comprises a steel lattice column and a bored pile foundation, wherein the steel lattice column is arranged on the bored pile foundation, a column top anchor plate, anchor bars and stiffening rib plates are arranged at the top end of the concrete lattice column, the column top anchor plate is arranged at the top of the concrete lattice column, the anchor bars extend out of the concrete lattice column, and the stiffening rib plates are arranged at right-angle positions formed by the column top anchor plate and the concrete lattice column.
3. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: the concrete lattice column is provided with a lacing plate, the lacing plate is fixedly connected with an external steel bracket, the channel steel is arranged above the steel bracket, the channel steel is fixedly connected with the steel bracket, and the channel steel is connected with the concrete lattice column on the same side.
4. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: the Bailey beam is manufactured by adopting a 321-type assembled highway steel bridge truss.
5. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: the distribution beam is H-shaped steel.
6. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: the lifting lug adopts a D-shaped shackle, a steel wire rope penetrates through a pipeline or a box culvert to be connected with the lifting lug, and a protective liner is arranged at the contact position of the steel wire rope and the pipeline.
7. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit of claim 6, wherein: and angle steel is arranged at the transfer position of the bottom of the box culvert.
8. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit according to claim 1, wherein: retaining walls are arranged between adjacent fender posts on the same side.
9. The large-diameter pipeline and box culvert suspension structure crossing a subway station foundation pit of claim 6, wherein: and a chain block is arranged on the steel wire rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321587480.7U CN220284876U (en) | 2023-06-20 | 2023-06-20 | Large-diameter pipeline crossing subway station foundation pit and box culvert suspension structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321587480.7U CN220284876U (en) | 2023-06-20 | 2023-06-20 | Large-diameter pipeline crossing subway station foundation pit and box culvert suspension structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220284876U true CN220284876U (en) | 2024-01-02 |
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ID=89336708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321587480.7U Active CN220284876U (en) | 2023-06-20 | 2023-06-20 | Large-diameter pipeline crossing subway station foundation pit and box culvert suspension structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220284876U (en) |
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2023
- 2023-06-20 CN CN202321587480.7U patent/CN220284876U/en active Active
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