CN212803226U - Subway station spanning existing tunnel - Google Patents
Subway station spanning existing tunnel Download PDFInfo
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- CN212803226U CN212803226U CN202021925756.4U CN202021925756U CN212803226U CN 212803226 U CN212803226 U CN 212803226U CN 202021925756 U CN202021925756 U CN 202021925756U CN 212803226 U CN212803226 U CN 212803226U
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Abstract
The utility model relates to a rail transit technical field provides a stride subway station in existing tunnel on, including the supporting body, the supporting body has the supporting platform and supplies the passageway that runs through that the existing tunnel passed, in the supporting platform top is executed in proper order and is made platform layer and station room layer. The utility model discloses a construction station platform layer and station room layer on the supporting body, wherein station room layer and station platform layer are under construction through the undercut method, and station room layer guarantees passenger's sparse and intercommunication, and station platform layer guarantees the normal operating of train, greatly reduced the engineering risk.
Description
Technical Field
The utility model relates to a track traffic technical field specifically is a stride subway station in existing tunnel on.
Background
Along with the construction of cities, rail transit is developing vigorously, subway lines are increasing continuously, and in the follow-up process, subway engineering cross nodes are not reserved for long-term subway structure construction conditions, such as subway stations needing to be built above existing subway tunnels. The construction of the traditional subway station needs to excavate a deep and large foundation pit, the construction of the subway station by excavating the deep and large foundation pit above the existing tunnel has extremely high risk, engineering accidents are easy to cause, and meanwhile, a better solution is not provided for the cross node engineering of the type at present.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cross the subway station in existing tunnel on, can solve the partial defect among the prior art at least.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the subway station capable of crossing the existing tunnel comprises a bearing body, wherein the bearing body is provided with a supporting platform and a through channel for the existing tunnel to pass through, a station platform layer and a station hall layer are arranged above the supporting platform, and the station platform layer is located below the station hall layer.
Further, the station layer comprises a newly-built tunnel crossed with the existing tunnel.
Furthermore, the station hall layer is provided with an enclosure structure.
Further, the station hall layer is provided with a station hall layer channel with the length direction consistent with the extending direction of the newly-built tunnel.
Further, the station hall layer channel is communicated with subway stations on two sides of the existing tunnel.
Further, the supporting body is a door type reinforcing body, the door type reinforcing body is provided with a door arch, the through channel is the door arch, and the supporting platform is the upper surface of the door type reinforcing body.
Further, the number of the door arches is the same as the number of the existing tunnels.
Further, the door arches are multiple and are uniformly distributed at intervals along the extending direction which is horizontally vertical to the existing track.
Compared with the prior art, the beneficial effects of the utility model are that: through construction station platform layer and station room layer on the supporting body, wherein station room layer and station platform layer are under construction through the undercut method, and station room layer guarantees evacuation and the intercommunication of passenger, and station platform layer guarantees the normal operating of train, greatly reduced engineering risk.
Drawings
Fig. 1 is a plan layout view of a subway station crossing an existing tunnel according to an embodiment of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
in the reference symbols: 1-door type reinforcement; 2-a platform layer; 20-newly building a tunnel; 3-station hall layer; 30-station hall floor aisle; 4-a building envelope; 5-existing tunnel; 6-water bag.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a subway station spanning an existing tunnel, including a supporting body, the supporting body has a supporting platform and a through channel for the existing tunnel to pass through, a platform layer and a station hall layer are disposed above the supporting platform, and the platform layer is located below the station hall layer. In this embodiment, the supporting body is constructed above the existing tunnel, and the supporting body can support the station platform layer and the station hall layer, and the supporting body is constructed firstly, and then the station platform layer and the station hall layer are constructed in sequence, so that a series of problems caused by direct excavation of a deep foundation pit can be avoided. Specifically, the supporting body is provided with a through channel, an existing tunnel can pass through the supporting body, the existing tunnel cannot be obstructed, a supporting platform is arranged above the supporting body after the supporting body is stably arranged, during construction, two sides of the existing tunnel are constructed firstly, and then a station platform layer and a station hall layer are constructed upwards on the supporting platform step by step according to the construction sequence. Preferably, during construction, the station layer needs to meet the originating and receiving conditions of a shield or a push pipe, and the station layer meets the originating and receiving conditions of the push pipe of the station hall layer.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 3, where the platform layer includes a newly-built tunnel crossed with the existing tunnel. In this embodiment, the newly-built tunnel is in a platform layer, and is used for train passage of a newly-built subway station, and a shield or pipe jacking construction method can be adopted. The newly-built tunnel and the existing tunnel are arranged in a crossed mode, namely the direction of the subway running in the newly-built tunnel is different from the direction of the subway running in the existing tunnel.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 3, the station hall layer is provided with an enclosure structure. In this embodiment, establish envelope can make subway station more stable firm.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to fig. 3, the station hall layer has a station hall layer channel whose length direction is the same as the extending direction of the new tunnel. Preferably, the station hall layer channel is communicated with subway stations on two sides of the existing tunnel. In this embodiment, a station hall floor channel is newly built, and the channel is constructed by adopting a pipe jacking method and is used for communicating and evacuating passengers at subway stations on two sides of an existing tunnel. When a passageway of a station hall layer is constructed, a ballast body, such as a ballast water bag, can be properly loaded in the newly-built tunnel, so that floating overrun of the existing tunnel and the newly-built tunnel is avoided.
As an optimized solution of the embodiment of the present invention, please refer to fig. 1 to 3, the supporting body is a door-type reinforcing body, the door-type reinforcing body has a door arch, the through channel is the door arch, and the supporting platform is the upper surface of the door-type reinforcing body. In this embodiment, the supporting body is a portal reinforcement, and an MJS construction method with small disturbance to the soil body is adopted when the portal reinforcement is constructed. Preferably, the number of the door arches is the same as the number of the existing tunnels. The door arches are arranged at intervals along the extending direction which is horizontally vertical to the existing track. In this embodiment, the number of the gate arches may be set according to the number of the existing tunnels, for example, as shown in the figure, two gate arches may be set for two existing tunnels, and the two gate arches are spaced according to the interval between the two existing tunnels.
The embodiment of the utility model provides a construction method of subway station of striding existing tunnel on, including following step: s1, constructing a bearing body above the existing tunnel, and enabling the existing tunnel to pass through a through channel of the bearing body; s2, constructing a newly built tunnel above the supporting platform of the bearing body; and S3, after the construction of the newly-built tunnel is finished, constructing a station hall layer above the newly-built tunnel. In this embodiment, the supporting body is constructed above the existing tunnel, and the supporting body can support the station platform layer and the station hall layer, and the supporting body is constructed firstly, and then the station platform layer and the station hall layer are constructed in sequence, so that a series of problems caused by direct excavation of a deep foundation pit can be avoided. Specifically, the supporting body is provided with a through channel, an existing tunnel can pass through the supporting body, the existing tunnel cannot be obstructed, a supporting platform is arranged above the supporting body after the supporting body is stably arranged, during construction, two sides of the existing tunnel are constructed firstly, and then a station platform layer and a station hall layer are constructed upwards on the supporting platform step by step according to the construction sequence. Preferably, during construction, the station layer needs to meet the originating and receiving conditions of a shield or a push pipe, and the station layer meets the originating and receiving conditions of the push pipe of the station hall layer.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 3, wherein an MJS construction method is adopted when constructing the supporting body. In this embodiment, the supporting body is a portal reinforcement, and an MJS construction method with small disturbance to the soil body is adopted when the portal reinforcement is constructed. Preferably, the number of the door arches is the same as the number of the existing tunnels. The door arches are arranged at intervals along the extending direction which is horizontally vertical to the existing track. In this embodiment, the number of the gate arches may be set according to the number of the existing tunnels, for example, as shown in the figure, two gate arches may be set for two existing tunnels, and the two gate arches are spaced according to the interval between the two existing tunnels.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 3, when constructing the new tunnel, a shield method or a pipe-jacking construction method is adopted. In this embodiment, the newly-built tunnel is in a platform layer, and is used for train passage of a newly-built subway station, and a shield or pipe jacking construction method can be adopted. The newly-built tunnel and the existing tunnel are arranged in a crossed mode, namely the direction of the subway running in the newly-built tunnel is different from the direction of the subway running in the existing tunnel.
As an optimization scheme of the embodiment of the utility model, please refer to fig. 1 to 3, when constructing the new tunnel, in place the ballast body in the new tunnel, prevent existing tunnel and the new tunnel transfinite come-up, wait to retrieve the ballast body after the construction of station hall layer is accomplished.
As an optimization scheme of the embodiment of the present invention, please refer to fig. 1 to 3, a skip method is adopted to excavate the station hall layer foundation pit in sections or a pipe jacking method is adopted to construct the station hall layer. In this embodiment, a skip method is adopted to excavate the station hall layer foundation pit in sections, and the length and the number of the sections can be determined according to actual conditions. The excavation may be performed in the form of, for example, six pit divisions in the lobby floor as shown in fig. 3, which are defined as excavation 1, excavation 2, excavation 3, excavation 4, excavation 5, and excavation 6.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a cross subway station in existing tunnel on it which characterized in that: including the supporting body, the supporting body has supporting platform and supplies the through passage that existing tunnel passed, the supporting platform top is equipped with station platform layer and station hall layer, station platform layer is located station hall layer below.
2. A subway station as claimed in claim 1, spanning an existing tunnel, wherein: the station layer comprises a newly-built tunnel which is crossed with the existing tunnel.
3. A subway station as claimed in claim 1, spanning an existing tunnel, wherein: and the station hall layer is provided with an enclosure structure.
4. A subway station spanning an existing tunnel as claimed in claim 2, wherein: and the station hall layer is provided with a station hall layer channel with the length direction consistent with the extending direction of the newly-built tunnel.
5. The subway station spanning the existing tunnel according to claim 4, wherein: and the station hall layer channel is communicated with subway stations on two sides of the existing tunnel.
6. A subway station as claimed in claim 1, spanning an existing tunnel, wherein: the supporting body is a door type reinforcing body, the door type reinforcing body is provided with a door arch, the through channel is the door arch, and the supporting platform is the upper surface of the door type reinforcing body.
7. The subway station spanning the existing tunnel according to claim 6, wherein: the number of the door arches is the same as that of the existing tunnel.
8. The subway station spanning the existing tunnel according to claim 6, wherein: the door arches are arranged at intervals along the extending direction which is horizontally vertical to the existing track.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925756.4U CN212803226U (en) | 2020-09-07 | 2020-09-07 | Subway station spanning existing tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021925756.4U CN212803226U (en) | 2020-09-07 | 2020-09-07 | Subway station spanning existing tunnel |
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| CN212803226U true CN212803226U (en) | 2021-03-26 |
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| CN202021925756.4U Active CN212803226U (en) | 2020-09-07 | 2020-09-07 | Subway station spanning existing tunnel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605896A (en) * | 2021-09-15 | 2021-11-05 | 中铁第六勘察设计院集团有限公司 | Construction method for cutting multi-chamber underground excavation channel to penetrate through existing vertical shaft |
-
2020
- 2020-09-07 CN CN202021925756.4U patent/CN212803226U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605896A (en) * | 2021-09-15 | 2021-11-05 | 中铁第六勘察设计院集团有限公司 | Construction method for cutting multi-chamber underground excavation channel to penetrate through existing vertical shaft |
| CN113605896B (en) * | 2021-09-15 | 2023-09-05 | 中铁第六勘察设计院集团有限公司 | Construction method for cutting through existing vertical shaft by multi-cavity underground excavation passage |
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