CN210887325U - Protection architecture of subway tunnel - Google Patents
Protection architecture of subway tunnel Download PDFInfo
- Publication number
- CN210887325U CN210887325U CN201921550941.7U CN201921550941U CN210887325U CN 210887325 U CN210887325 U CN 210887325U CN 201921550941 U CN201921550941 U CN 201921550941U CN 210887325 U CN210887325 U CN 210887325U
- Authority
- CN
- China
- Prior art keywords
- subway
- tunnel
- interval
- subway tunnel
- conversion plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model provides a subway tunnel's protection architecture is including covering the change-over panel in an interval top, be equipped with a plurality of operation subway tunnels in the interval side by side, be in along tunnel length direction interval both sides are with adjacent a plurality of pile foundations of having arranged respectively between the operation subway tunnel, all the top fixed connection of pile foundation in the change-over panel. The utility model provides a pair of subway tunnel's protection architecture is applicable to the tunnel protection of striding the interval on the foundation ditch construction, and the structure is simple, safe and reliable, furthest has protected the safety of existing operation subway.
Description
Technical Field
The utility model relates to a building engineering technical field, concretely relates to protection architecture in subway tunnel.
Background
With the large-scale development of urban underground space development and the continuous improvement of rail transit networks, the conflict between the established subway tunnel and the newly-built underground engineering is increasingly prominent, and the foundation pit engineering carried out above the operation subway tunnel is continuously appeared.
The excavation unloading of foundation ditch can lead to tunnel resilience to warp (soft soil area especially), and subway extremely high to tunnel deformation control requirement, generally controls within 10 mm. Therefore, when the foundation pit is excavated above the subway tunnel, protective measures are taken to control the deformation of the subway tunnel.
At present, during construction of foundation pits in an upper span interval, control measures such as cement soil stirring reinforcement, high-pressure jet grouting pile reinforcement and double-liquid grouting are generally adopted for soil bodies around a tunnel, but the deformation of a subway tunnel can be caused due to construction disturbance, and the subway operation safety is influenced. Therefore, what kind of safe and efficient protection measures are adopted to control the deformation of the subway tunnel is a great technical problem which puzzles the subway construction.
SUMMERY OF THE UTILITY MODEL
The utility model provides a protection architecture in subway tunnel is applicable to the tunnel protection of span interval in the foundation ditch construction, and the structure is simple, safe and reliable, and furthest has protected the safety of existing operation subway.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
the utility model provides a protection architecture in subway tunnel, is including covering the change-over panel in an interval top, be equipped with a plurality of operation subway tunnels in the interval side by side, be in along tunnel length direction interval both sides are with adjacent a plurality of pile foundations of having arranged respectively between the operation subway tunnel, all the top fixed connection of pile foundation in the change-over panel.
A foundation pit is arranged above the interval, the conversion plate is laid at the bottom of the foundation pit, and the conversion plate is embedded into the foundation pit side slope along two sides of the width direction of the tunnel.
The conversion plate is arranged at the bottom of the foundation pit excavated above the operation subway tunnel, so that the upward floating and the rebound deformation of the subway tunnel can be controlled within the safety range required by the subway operation standard; a plurality of pile foundations are arranged between adjacent subway tunnels and on two sides of an interval respectively, the tops of the pile foundations are connected to the lower layer of the conversion plate, the conversion plate serves as an upper structure bottom plate, vertical loads of upper structure stand columns are transmitted to a pile foundation through the conversion plate, and the subway tunnels can be effectively controlled to settle.
The pile foundation is a cast-in-situ bored pile.
The conversion plate comprises a plurality of cast-in-place concrete plates, and the cast-in-place concrete plates are sequentially arranged along the length direction of the tunnel.
And reserved tie bars are respectively arranged at the top of the pile foundation and are embedded and fixed in the conversion plate.
The beneficial effects of the utility model reside in that:
the conversion plate is arranged at the bottom of the foundation pit excavated above the operation subway tunnel, so that the upward floating and the rebound deformation of the subway tunnel can be controlled within the safety range required by the subway operation standard; a plurality of pile foundations are arranged between adjacent subway tunnels and on two sides of an interval respectively, the tops of the pile foundations are connected to the lower layer of the conversion plate, the conversion plate serves as an upper structure bottom plate, vertical loads of upper structure stand columns are transmitted to a pile foundation through the conversion plate, and the subway tunnels can be effectively controlled to settle. The conversion plate protection structure is simple in construction, and the influence of foundation pit construction above the interval on a lower horizontal subway tunnel and the surrounding environment can be effectively reduced. The utility model provides a pair of subway tunnel's protection architecture is applicable to the tunnel protection of striding the interval on the foundation ditch construction, and the structure is simple, safe and reliable, furthest has protected the safety of existing operation subway.
Drawings
Fig. 1 is a schematic perspective view of a protection structure of a subway tunnel according to the present invention.
Fig. 2 is a front view of a protection structure of a subway tunnel according to the present invention.
Fig. 3 is a top view of the protection structure of a subway tunnel according to the present invention.
Detailed Description
The protection structure of a subway tunnel according to the present invention will be further described with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 and 2, a protection structure for a subway tunnel includes a transition plate 12 covering an area, a plurality of operating subway tunnels 10 are arranged side by side in the area, a plurality of pile foundations 13 are respectively arranged between two sides of the area and the adjacent operating subway tunnels 10 along the length direction of the tunnel, and tops of all the pile foundations 13 are fixedly connected to the transition plate 12.
A foundation pit is arranged above the interval, the conversion plate 12 is laid at the bottom of the foundation pit, and the conversion plate 12 is embedded into the foundation pit side slope along two sides of the tunnel in the width direction.
The conversion plate 12 is arranged at the bottom of a foundation pit excavated above an operation subway tunnel, so that the upward floating and the rebound deformation of the subway tunnel 10 can be controlled within a safety range required by subway operation standards; a plurality of pile foundations 13 are respectively arranged between adjacent subway tunnels 10 and on two sides of the interval, the tops of the pile foundations 13 are connected to the lower layer of a conversion plate 12, the conversion plate 12 serves as an upper structure bottom plate, vertical loads of upper structure upright columns are transmitted to pile foundations through the conversion plate 12, and the settlement of the subway tunnels 10 can be effectively controlled.
The pile foundation 13 is a cast-in-place bored pile.
The conversion plate 12 includes a plurality of single plates of cast-in-place concrete, which are sequentially arranged along the length direction of the tunnel. Cast in situ concrete veneer runs through a plurality of pile foundations 13 along tunnel width direction, the utility model discloses concrete veneer is the rectangle among the embodiment.
Reserved tie bars are respectively arranged at the top of the pile foundation 13 and are embedded and fixed in the conversion plate 12.
The utility model discloses tunnel quantity is two among the embodiment.
The utility model provides a pair of protection architecture construction node in subway tunnel as follows:
leveling a field, measuring and setting out, and determining the accurate position of a pile foundation in a subway tunnel protection area;
secondly, constructing a cast-in-situ bored pile, constructing the cast-in-situ bored pile by adopting a full-rotation casing pipe drilling machine for the pile foundation 13, and embedding the pile foundation 13 into the bearing layer;
and (III) reserving tie bars for the cast-in-situ bored pile, arranging the steel bars of the conversion plate 12, pouring the concrete conversion plate 12, and pouring the conversion plate 12 in blocks according to the foundation pit excavation scheme.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the conversion plate is arranged at the bottom of the foundation pit excavated above the operation subway tunnel, so that the upward floating and the rebound deformation of the subway tunnel can be controlled within the safety range required by the subway operation standard; a plurality of pile foundations are respectively arranged between adjacent subway tunnels and on two sides of an interval, the tops of the pile foundations are connected to the lower layer of the conversion plate, the conversion plate serves as an upper structure bottom plate, vertical loads of upper structure stand columns are transmitted to the pile foundations through the conversion plate, and the subway tunnels can be effectively controlled to settle. The conversion plate protection structure is simple in construction, and the influence of foundation pit construction above the interval on a lower horizontal subway tunnel and the surrounding environment can be effectively reduced. The utility model provides a pair of subway tunnel's protection architecture is applicable to the tunnel protection of striding the interval on the foundation ditch construction, and the structure is simple, safe and reliable, furthest has protected the safety of existing operation subway.
The above is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiments, and although the present invention has been disclosed with the above preferred embodiments, but the present invention is not limited to the above embodiments, and any skilled person familiar with the art can make some changes or modifications to equivalent embodiments without departing from the technical scope of the present invention, but all the technical matters of the present invention are within the scope of the technical solution of the present invention.
It should be noted that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy and the achievable purpose of the present invention.
Claims (5)
1. The utility model provides a protection architecture in subway tunnel which characterized in that: including covering the change-over panel in an interval top, be equipped with a plurality of operation subway tunnels in the interval side by side, be in along tunnel length direction interval both sides are adjacent a plurality of pile foundations of having arranged respectively between the operation subway tunnel, all the top fixed connection of pile foundation in the change-over panel.
2. A protection structure of a subway tunnel according to claim 1, characterized in that: a foundation pit is arranged above the interval, the conversion plate is laid at the bottom of the foundation pit, and the conversion plate is embedded into the foundation pit side slope along two sides of the width direction of the tunnel.
3. A protection structure of a subway tunnel according to claim 1, characterized in that: the pile foundation is a cast-in-situ bored pile.
4. A protection structure of a subway tunnel according to claim 1, characterized in that: the conversion plate comprises a plurality of cast-in-place concrete single plates, and the cast-in-place concrete single plates are sequentially arranged along the length direction of the tunnel.
5. A protection structure of a subway tunnel according to claim 1, characterized in that: and reserved tie bars are respectively arranged at the top of the pile foundation and are embedded and fixed in the conversion plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550941.7U CN210887325U (en) | 2019-09-18 | 2019-09-18 | Protection architecture of subway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921550941.7U CN210887325U (en) | 2019-09-18 | 2019-09-18 | Protection architecture of subway tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210887325U true CN210887325U (en) | 2020-06-30 |
Family
ID=71323926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921550941.7U Active CN210887325U (en) | 2019-09-18 | 2019-09-18 | Protection architecture of subway tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210887325U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809615A (en) * | 2020-08-17 | 2020-10-23 | 上海两港市政工程有限公司 | Heavy pile machine load underpinning structure and construction method thereof |
| CN113309133A (en) * | 2021-06-17 | 2021-08-27 | 广州正林工程技术有限公司 | Pile foundation vibration damping and resistance reducing structure for subway tunnel and design method thereof |
| CN114396068A (en) * | 2022-01-20 | 2022-04-26 | 广东省重工建筑设计院有限公司 | Existing tunnel upper bearing platform structure |
-
2019
- 2019-09-18 CN CN201921550941.7U patent/CN210887325U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111809615A (en) * | 2020-08-17 | 2020-10-23 | 上海两港市政工程有限公司 | Heavy pile machine load underpinning structure and construction method thereof |
| CN113309133A (en) * | 2021-06-17 | 2021-08-27 | 广州正林工程技术有限公司 | Pile foundation vibration damping and resistance reducing structure for subway tunnel and design method thereof |
| CN113309133B (en) * | 2021-06-17 | 2022-07-29 | 广州正林工程技术有限公司 | Pile foundation vibration damping and resistance reducing structure for subway tunnel and design method thereof |
| CN114396068A (en) * | 2022-01-20 | 2022-04-26 | 广东省重工建筑设计院有限公司 | Existing tunnel upper bearing platform structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10138616B2 (en) | Inverse construction method for deep, large and long pit assembling structure of suspension-type envelope enclosure | |
| CN108643231B (en) | Top plate cover excavation construction method for central urban subway station half-width structure | |
| CN210887325U (en) | Protection architecture of subway tunnel | |
| CN105064397B (en) | Open excavation construction method for expanding excavation of station on metro interzone shield tunnel foundation | |
| CN105239586B (en) | Method for supporting foundation pit by adopting support structure | |
| CN111396095B (en) | Tunnel simple arch open cut tunnel structure penetrating through huge karst cave and construction method thereof | |
| CN105862930B (en) | A kind of protection structure to creating existing tunnel below underground engineering | |
| CN108193642B (en) | Revetment reinforcing facility and construction method thereof | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN209227580U (en) | The tower-crane foundation structure of raft foundation is placed under a kind of | |
| CN103806464B (en) | Large-scale high ferro station and subway cross top-down construction method up and down | |
| CN106835879A (en) | Highway is laterally without support type peg board formula without earth roadbed and its construction method | |
| CN103572680B (en) | The roadbed filling construction method of coal mine gob | |
| CN214887086U (en) | Slope debris flow guide-discharge type open cut tunnel structure | |
| CN117646437A (en) | Side slope and foundation pit double-row pile supporting structure and construction method | |
| CN111021378A (en) | Highway subgrade slope broken line type anchoring pile retaining structure and construction method thereof | |
| CN103967052A (en) | Method for protecting height difference soil bodies of bases of new frame structure bridge and old frame structure bridge | |
| CN109024657B (en) | Construction method of super high-rise core tube deep pit edge tower crane foundation under complex conditions | |
| CN216765941U (en) | Tunnel decompression load shedding structure under bias voltage state | |
| CN203821399U (en) | Deep foundation pit supporting structure | |
| CN211447000U (en) | Foundation pit backfill area construction elevator foundation | |
| Zargar et al. | Top-Down Construction Method: A Case Study of Commercial Building in Tehran | |
| Marchand | A DEEP BASEMENT IN ALDERSGATE STREET, LONDON. PART 1: CONTRACTOR'S DESIGN AND PLANNING. | |
| CN211395688U (en) | Double row pile supporting construction | |
| CN211816326U (en) | Combined retaining structure of half H-shaped anti-slide pile and retaining plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |