CN111254977A - Track panel well supporting structure of prefabricated steel buttress and construction method - Google Patents
Track panel well supporting structure of prefabricated steel buttress and construction method Download PDFInfo
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- CN111254977A CN111254977A CN202010205047.7A CN202010205047A CN111254977A CN 111254977 A CN111254977 A CN 111254977A CN 202010205047 A CN202010205047 A CN 202010205047A CN 111254977 A CN111254977 A CN 111254977A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 158
- 239000010959 steel Substances 0.000 title claims abstract description 158
- 238000010276 construction Methods 0.000 title claims abstract description 27
- 238000009412 basement excavation Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/04—Making large underground spaces, e.g. for underground plants, e.g. stations of underground railways; Construction or layout thereof
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Abstract
The invention relates to the technical field of urban rail transit buildings, and discloses a track panel well supporting structure of prefabricated steel buttress columns and a construction method, wherein the supporting structure comprises a station top plate, a station middle plate, a station bottom plate, a side wall, a first prefabricated steel buttress column and a second prefabricated steel buttress column, the first prefabricated steel buttress column and the second prefabricated steel buttress column are arranged on the side wall, two ends of the first prefabricated steel buttress column are respectively connected to the station middle plate and the station bottom plate, two ends of the second prefabricated steel buttress column are respectively connected to the station middle plate and the station top plate, the overall structure is simple, the structural strength of a track panel well is enhanced by arranging the steel buttress columns in the station, the condition that external expansion supporting needs to be carried out on the outer wall of the station is avoided, and meanwhile, the construction method of the supporting structure can not cause waste of later-period used space, the investment is saved, and the construction speed is improved.
Description
Technical Field
The invention relates to the technical field of urban rail transit buildings, in particular to a track panel well supporting structure of a prefabricated steel buttress and a construction method.
Background
With the rapid development of urban rail transit, urban rail transit lines are gradually formed into a net. Urban rail transit line lays in city central area encryption, and like this, the peripheral environment of subway station is relatively poor, and the construction site is less. In the case of a fixed construction period, if the civil engineering provides conditions for later track laying, track panel wells need to be arranged as much as possible. However, due to the influence of subway station site environment, construction site, construction project planning in the early stage, and the like, the limitation of a track panel well or a station construction site is not considered in the early stage of civil engineering, and pile anchor supports or buttress stud wall structure supports (traditional supports, the outer wall of the station needs to be expanded to a certain extent) are not provided in some stations.
At present, the existing track panel well supporting technology mainly comprises the following steps: pile and anchor cable supporting schemes, buttress column and ring frame beam structure supporting schemes and the like. Pile and anchor cable supporting scheme: when the station is used for constructing the main body fender pile, the range of the rail panel well of the station is locally expanded, the anchor cable is applied in the excavation process of the foundation pit, after the main body structure of the station is completed, the main body structure of the rail panel well is prevented from being subjected to lateral water and soil pressure in the rail laying process through the supporting scheme of the pile and the anchor cable, and the structural safety is achieved. Supporting the buttress wall structure: when the station is used for constructing the fender pile, the range of the station track panel well is locally expanded, when a main structure of the station is constructed, the structure is built according to the expanded contour, and the buttress column and the ring frame beam are synchronously constructed, so that the structural system of the buttress column and the ring frame beam supports and blocks the water and soil pressure of the side surface, and the stress requirement of the main structure of the station in the track laying process is met. The pile + anchor rope scheme needs to expand outward in the track panel well scope to set up the anchor rope, require high to the surrounding environment, need have the place of executing the anchor rope, and there is a great deal of inconvenience in the later stage to peripheral underground space utilization. The supporting scheme of the buttress column and ring frame beam structure needs to be expanded outside the range of the track panel well so as to arrange the buttress column and the ring frame beam. The buttress columns and the ring frame beams not only increase investment, but also have no use in the range of the buttress columns and the ring frame beams in the later period.
Disclosure of Invention
The invention provides a track panel well supporting structure of a prefabricated steel buttress and a construction method, and aims to solve the problems that anchor cables cannot be arranged or a structure is partially externally arranged due to poor construction environment of a subway station, early engineering planning is not fully considered, track panel wells need to be additionally arranged and the like in the prior art.
In order to solve the technical problems, the invention provides a track panel well supporting structure of prefabricated steel buttress columns, which comprises a station top plate, a station middle plate, a station bottom plate, side walls, a first prefabricated steel buttress column and a second prefabricated steel buttress column, wherein two ends of the station top plate are connected to the side walls, two ends of the station middle plate are connected to the side walls, and two ends of the station bottom plate are connected to the side walls; the first prefabricated steel counterfort and the second prefabricated steel counterfort are arranged on the side wall, two ends of the first prefabricated steel counterfort are respectively connected to the station middle plate and the station bottom plate, two ends of the second prefabricated steel counterfort are respectively connected to the station middle plate and the station top plate, and the first prefabricated steel counterfort and the second prefabricated steel counterfort are correspondingly arranged.
Preferably, the station top plate is provided with a first track panel well, the station bottom plate is provided with a second track panel well, and the first track panel well and the second track panel well are arranged correspondingly.
As a preferred scheme, the quantity of first prefabricated steel buttress is equipped with a plurality ofly, and is a plurality of first prefabricated steel buttress equidistance sets up, and is a plurality of first prefabricated steel buttress with first section of track well with the corresponding setting of second section of track well, the quantity of second prefabricated steel buttress is equipped with a plurality ofly, and is a plurality of prefabricated steel buttress equidistance sets up of second, and is a plurality of prefabricated steel buttress corresponds the setting with first section of track well with the second section of track well.
As preferred scheme, prefabricated steel buttress's section of track well bearing structure still includes steel sheet and crab-bolt, steel sheet and crab-bolt inlay uniformly and locate the lateral wall the station roof the station medium plate with the station bottom plate, just steel sheet and crab-bolt connect in prefabricated steel buttress.
The invention also provides a construction method of the track panel well supporting structure based on the prefabricated steel buttress, and the construction method comprises the following steps:
s1, carrying out foundation pit excavation, sequentially erecting supports, and sequentially excavating earthwork until the foundation pit excavation is finished;
s2, pouring the station bottom plate, and embedding the steel plate and anchor bolts on the station bottom plate at equal intervals at the joint of the station bottom plate and the first prefabricated steel buttress column;
s3, pouring the side wall to the height of the subway middle plate, and embedding the steel plate and the anchor bolt on the side wall at equal intervals at the joint of the side wall and the first prefabricated steel buttress column;
s4, connecting the first prefabricated steel buttress with the station bottom plate and the side wall by using bolts;
s5, pouring the station middle plate, embedding the steel plate and the anchor bolts on the station middle plate at equal intervals at the joint of the station middle plate and the first prefabricated steel buttress column, and embedding the steel plate and the anchor bolts on the station middle plate at equal intervals at the joint of the station middle plate and the second prefabricated steel buttress column;
s6, continuously pouring the side wall to the height of the subway roof, and embedding the steel plate and the anchor bolt on the side wall at equal intervals at the joint of the side wall and the second prefabricated steel buttress column;
s7, connecting the second prefabricated steel buttress column with the station middle plate and the side wall by using bolts;
s8, pouring the station roof, and embedding the steel plate and anchor bolts on the station roof at equal intervals at the joint of the station roof and the second prefabricated steel buttress column;
s9, connecting the first prefabricated steel buttress column with the station middle plate by using a bolt, and connecting the second prefabricated steel buttress column with the station top plate;
s10, after the track is laid, pouring the first track panel well and the second track panel well by using micro-expansion concrete, and finishing the post-pouring process of the middle plate and the top plate of the station;
s11, after the strength of the track panel well supporting structure of the prefabricated steel buttress reaches a certain degree, detaching the first prefabricated steel buttress and the second prefabricated steel buttress.
The supporting structure comprises a station top plate, a station middle plate, a station bottom plate, a side wall, a first prefabricated steel buttress column and a second prefabricated steel buttress column, wherein the first prefabricated steel buttress column and the second prefabricated steel buttress column are arranged on the side wall, two ends of the first prefabricated steel buttress column are respectively connected to the station middle plate and the station bottom plate, two ends of the second prefabricated steel buttress column are respectively connected to the station middle plate and the station top plate.
Drawings
FIG. 1 is one of the schematic structural views of a track panel well supporting structure of a prefabricated steel buttress according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a track panel well supporting structure of a prefabricated steel buttress according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a track panel well supporting structure of a prefabricated steel buttress column according to an embodiment of the invention.
In the figure, the position of the upper end of the main shaft,
1. a station roof;
2. a middle plate of a station;
3. a station floor;
4. a side wall;
51. a first prefabricated steel buttress; 52. a second prefabricated steel buttress;
6. a steel plate and an anchor bolt;
71. a first track panel well; 72. a second track panel well.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, a track panel well supporting structure of a prefabricated steel buttress according to a preferred embodiment of the present invention includes a station roof 1, a station middle plate 2, a station bottom plate 3, a side wall 4, a first prefabricated steel buttress 51 and a second prefabricated steel buttress 52, wherein two ends of the station roof 1 are connected to the side wall 4, two ends of the station middle plate 2 are connected to the side wall 4, and two ends of the station bottom plate 3 are connected to the side wall 4; first prefabricated steel buttress 51 and the prefabricated steel buttress 52 of second all set up on lateral wall 4, and the both ends of first prefabricated steel buttress 51 are connected respectively in station medium plate 2 and station bottom plate 3, and the both ends of the prefabricated steel buttress of second are connected respectively in station medium plate 2 and station roof 1, and first prefabricated steel buttress 51 corresponds the setting with the prefabricated steel buttress 52 of second. Overall structure is simple, through at the inside steel buttress that sets up of station, and then has strengthened the structural strength of section of track well, has avoided the condition that needs expand outward at the station outer wall and strut.
As shown in fig. 2, the station roof 1 is provided with a first track panel well 71, the station floor 3 is provided with a second track panel well 72, and the first track panel well 71 and the second track panel well 72 are correspondingly arranged.
It should be noted here that the first track panel well 71 and the second track panel well 72 are arranged to facilitate the transportation of the steel rail to the inside of the station, and meanwhile, after the station track is laid, the first track panel well 71 and the second track panel well 72 are poured and sealed, so that the station top plate 1 and the station bottom plate 3 are poured and finished, and the waste of space is avoided.
As shown in fig. 3, the number of first prefabricated steel buttress columns 51 is provided with a plurality of, and a plurality of first prefabricated steel buttress columns 51 equidistance sets up, and a plurality of first prefabricated steel buttress columns 51 correspond the setting with first section of track well 71 and second section of track well 72, and the number of second prefabricated steel buttress columns 52 is provided with a plurality of, and a plurality of second prefabricated steel buttress columns 52 equidistance sets up, and a plurality of second prefabricated steel buttress columns 52 correspond the setting with first section of track well 71 and second section of track well 72.
It should be noted here that the steel buttress columns are arranged inside the station and correspond to the track panel wells, when steel rails are transported in the station, the overall strength of the station is enhanced, the steel buttress columns can be detached after the track is laid, meanwhile, the steel buttress columns can be reused, materials are saved, and station construction investment is reduced.
Preferably, prefabricated steel buttress's section of track well bearing structure still includes steel sheet and crab-bolt 6, and steel sheet and crab-bolt 6 inlay uniformly and locate lateral wall 4, station roof 1, station medium plate 2 and station bottom plate 3, and steel sheet and crab-bolt 6 connect in prefabricated steel buttress.
It should be noted that, the bolts are used for connecting each layer of structural slab (wall), the stress is clear, the integral rigidity is higher, the integral strength of the station during construction is enhanced, the construction operation is simple and convenient, and the later-stage disassembly is convenient.
The construction method of the track panel well supporting structure of the prefabricated steel buttress column in the embodiment of the invention also comprises the following steps:
s1, carrying out foundation pit excavation, sequentially erecting supports, and sequentially excavating earthwork until the foundation pit excavation is finished;
s2, pouring the station bottom plate 3, and embedding steel plates and anchor bolts 6 on the station bottom plate 3 at equal intervals at the joint of the station bottom plate 3 and the first prefabricated steel buttress column 51;
s3, pouring the side wall 4 to the height of the subway middle plate, and embedding steel plates and anchor bolts 6 on the side wall 4 at equal intervals at the joint of the side wall 4 and the first prefabricated steel buttress column 51;
s4, connecting the first prefabricated steel buttress 51 with the station floor 3 and the sidewall 4 using bolts;
s5, pouring the station middle plate 2, embedding the steel plate and the anchor bolt 6 on the station middle plate 2 at equal intervals at the joint of the station middle plate 2 and the first prefabricated steel buttress column 51, and embedding the steel plate and the anchor bolt 6 on the station middle plate 2 at equal intervals at the joint of the station middle plate 2 and the second prefabricated steel buttress column 52;
s6, continuously pouring the side wall 4 to the height of the subway roof, and embedding steel plates and anchor bolts 6 on the side wall 4 at equal intervals at the joint of the side wall 4 and the second prefabricated steel buttress column 52;
s7, connecting the second prefabricated steel buttress column 52 with the middle plate 2 and the side wall 4 of the station by using bolts;
s8, pouring the station roof 1, and embedding steel plates and anchor bolts 6 on the station roof 1 at equal intervals at the joint of the station roof 1 and the second prefabricated steel buttress column 52;
s9, connecting the first prefabricated steel buttress column 51 with the station middle plate 2 by using bolts, and connecting the second prefabricated steel buttress column 52 with the station roof plate 1;
s10, after the track is laid, pouring the first track panel well 71 and the second track panel well 72 by using micro-expansion concrete, and finishing the post-pouring process of the middle plate 2 and the top plate 1 of the station;
s11, after the strength of the track panel well supporting structure of the prefabricated steel buttress reaches a certain degree, the first prefabricated steel buttress 51 and the second prefabricated steel buttress 52 are disassembled.
It should be noted that, in the construction method, no anchor cable is required to be arranged, and no reinforced concrete buttress column and ring frame beam structure is required to be arranged, so that materials are saved, the cost is reduced, and the construction efficiency is improved; meanwhile, a supporting structure is constructed in the station, the station structure does not need to be expanded outwards, the construction space of the station is reduced, and the construction environment is optimized.
To sum up, the embodiment of the invention provides a track panel well supporting structure of prefabricated steel buttress columns and a construction method, wherein the supporting structure comprises a station top plate, a station middle plate, a station bottom plate, a side wall, a first prefabricated steel buttress column and a second prefabricated steel buttress column, the first prefabricated steel buttress column and the second prefabricated steel buttress column are arranged on the side wall, two ends of the first prefabricated steel buttress column are respectively connected to the station middle plate and the station bottom plate, two ends of the second prefabricated steel buttress column are respectively connected to the station middle plate and the station top plate, the whole structure is simple, the steel buttress columns are arranged in the station, the structural strength of a track panel well is further enhanced, the condition that external expansion supporting needs to be carried out on the outer wall of the station is avoided, meanwhile, the construction method of the supporting structure can not cause waste of later-period use space, the investment is saved, and the construction speed is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for persons skilled in the art, numerous modifications and substitutions can be made without departing from the counting principle of the present invention, and these modifications and substitutions should also be considered as the protection scope of the present invention.
Claims (5)
1. The track panel well supporting structure of the prefabricated steel buttress is characterized by comprising a station top plate, a station middle plate, a station bottom plate, a side wall, a first prefabricated steel buttress and a second prefabricated steel buttress, wherein two ends of the station top plate are connected to the side wall, two ends of the station middle plate are connected to the side wall, and two ends of the station bottom plate are connected to the side wall;
the first prefabricated steel counterfort and the second prefabricated steel counterfort are arranged on the side wall, two ends of the first prefabricated steel counterfort are respectively connected to the station middle plate and the station bottom plate, two ends of the second prefabricated steel counterfort are respectively connected to the station middle plate and the station top plate, and the first prefabricated steel counterfort and the second prefabricated steel counterfort are correspondingly arranged.
2. The panel well support structure of a prefabricated steel buttress as claimed in claim 1, wherein the station roof is provided with a first panel well, the station floor is provided with a second panel well, and the first panel well and the second panel well are arranged correspondingly.
3. The panel well support structure of prefabricated steel buttresses according to claim 2, wherein there are a plurality of the first prefabricated steel buttresses, a plurality of the first prefabricated steel buttresses are equidistantly arranged, and a plurality of the first prefabricated steel buttresses are arranged corresponding to the first panel well and the second panel well, there are a plurality of the second prefabricated steel buttresses, a plurality of the second prefabricated steel buttresses are equidistantly arranged, and a plurality of the second prefabricated steel buttresses are arranged corresponding to the first panel well and the second panel well.
4. The slatted well support structure of a prefabricated steel buttress of claim 1, further comprising steel plates and anchor bolts uniformly embedded in the side walls, the station roof, the station middle plate, and the station bottom plate, and connected to the prefabricated steel buttress.
5. A construction method of a track panel well supporting structure based on the prefabricated steel buttress column, which is characterized by comprising the following steps:
s1, carrying out foundation pit excavation, sequentially erecting supports, and sequentially excavating earthwork until the foundation pit excavation is finished;
s2, pouring the station bottom plate, and embedding the steel plate and anchor bolts on the station bottom plate at equal intervals at the joint of the station bottom plate and the first prefabricated steel buttress column;
s3, pouring the side wall to the height of the subway middle plate, and embedding the steel plate and the anchor bolt on the side wall at equal intervals at the joint of the side wall and the first prefabricated steel buttress column;
s4, connecting the first prefabricated steel buttress with the station bottom plate and the side wall by using bolts;
s5, pouring the station middle plate, embedding the steel plate and the anchor bolts on the station middle plate at equal intervals at the joint of the station middle plate and the first prefabricated steel buttress column, and embedding the steel plate and the anchor bolts on the station middle plate at equal intervals at the joint of the station middle plate and the second prefabricated steel buttress column;
s6, continuously pouring the side wall to the height of the subway roof, and embedding the steel plate and the anchor bolt on the side wall at equal intervals at the joint of the side wall and the second prefabricated steel buttress column;
s7, connecting the second prefabricated steel buttress column with the station middle plate and the side wall by using bolts;
s8, pouring the station roof, and embedding the steel plate and anchor bolts on the station roof at equal intervals at the joint of the station roof and the second prefabricated steel buttress column;
s9, connecting the first prefabricated steel buttress column with the station middle plate by using a bolt, and connecting the second prefabricated steel buttress column with the station top plate;
s10, after the track is laid, pouring the first track panel well and the second track panel well by using micro-expansion concrete, and finishing the post-pouring process of the middle plate and the top plate of the station;
s11, after the strength of the track panel well supporting structure of the prefabricated steel buttress reaches a certain degree, detaching the first prefabricated steel buttress and the second prefabricated steel buttress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205047.7A CN111254977A (en) | 2020-03-20 | 2020-03-20 | Track panel well supporting structure of prefabricated steel buttress and construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010205047.7A CN111254977A (en) | 2020-03-20 | 2020-03-20 | Track panel well supporting structure of prefabricated steel buttress and construction method |
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| CN111254977A true CN111254977A (en) | 2020-06-09 |
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| CN202010205047.7A Pending CN111254977A (en) | 2020-03-20 | 2020-03-20 | Track panel well supporting structure of prefabricated steel buttress and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186761A (en) * | 2021-04-02 | 2021-07-30 | 北京城建设计发展集团股份有限公司 | Single-hole double-path intensive track laying system for subway open-cut station |
| CN113756364A (en) * | 2021-09-22 | 2021-12-07 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN115405070A (en) * | 2022-08-16 | 2022-11-29 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole boundary beam and station construction method |
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| CN205805572U (en) * | 2016-07-12 | 2016-12-14 | 中铁第四勘察设计院集团有限公司 | A kind of buttress type subway station section of track well |
| CN109209431A (en) * | 2018-10-26 | 2019-01-15 | 中铁第四勘察设计院集团有限公司 | A kind of section of track well system based on Subway Stop line |
| CN209083287U (en) * | 2018-10-26 | 2019-07-09 | 中铁第四勘察设计院集团有限公司 | A kind of section of track well system based on Subway Stop line |
| CN212742626U (en) * | 2020-03-20 | 2021-03-19 | 广州地铁设计研究院股份有限公司 | Track panel well supporting structure of prefabricated steel buttress |
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2020
- 2020-03-20 CN CN202010205047.7A patent/CN111254977A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205805572U (en) * | 2016-07-12 | 2016-12-14 | 中铁第四勘察设计院集团有限公司 | A kind of buttress type subway station section of track well |
| CN109209431A (en) * | 2018-10-26 | 2019-01-15 | 中铁第四勘察设计院集团有限公司 | A kind of section of track well system based on Subway Stop line |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113186761A (en) * | 2021-04-02 | 2021-07-30 | 北京城建设计发展集团股份有限公司 | Single-hole double-path intensive track laying system for subway open-cut station |
| CN113756364A (en) * | 2021-09-22 | 2021-12-07 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN113756364B (en) * | 2021-09-22 | 2022-08-12 | 济南轨道交通集团有限公司 | Non-column subway station structure and track panel construction method |
| CN115405070A (en) * | 2022-08-16 | 2022-11-29 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole boundary beam and station construction method |
| CN115405070B (en) * | 2022-08-16 | 2024-01-23 | 中铁二院工程集团有限责任公司 | Installation form of track panel well hole side beam and station construction method |
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