CN215213521U - Combined type reinforcing structure for existing tunnel pipe sheet - Google Patents
Combined type reinforcing structure for existing tunnel pipe sheet Download PDFInfo
- Publication number
- CN215213521U CN215213521U CN202121059962.6U CN202121059962U CN215213521U CN 215213521 U CN215213521 U CN 215213521U CN 202121059962 U CN202121059962 U CN 202121059962U CN 215213521 U CN215213521 U CN 215213521U
- Authority
- CN
- China
- Prior art keywords
- existing tunnel
- steel ring
- steel
- ring support
- tunnel segment
- 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 discloses an existing tunnel segment combination formula reinforced structure, including the slip casting layer, a plurality of steel ring support, a plurality of vertical drawknot shaped steel and counter weight ballast unit, the slip casting layer sets up in the periphery of existing tunnel segment and hugs closely the outer wall of existing tunnel segment, a plurality of steel ring leg joint just follow the axial evenly distributed of existing tunnel segment on the inner wall of existing tunnel segment, a plurality of vertical drawknot shaped steel all are on a parallel with the axis of existing tunnel segment and are the round and distribute, every vertical drawknot shaped steel all connects the reinforcement connection who realizes a plurality of steel ring support on a plurality of steel ring support, counter weight ballast unit sets up in the bottom of existing tunnel segment and fixed connection on the inner wall of a plurality of steel ring support. The utility model discloses a vertical drawknot of slip casting layer, steel ring support and the ballasted integrated configuration of counter weight solve and close on existing tunnel come-up and the deformation scheduling problem that the tunnel excavation arouses.
Description
Technical Field
The utility model relates to a tunnel construction technical field specifically is an existing tunnel tube sheet combination formula reinforced structure.
Background
With the continuous oversize subway construction scale in China, the clear space of the double-line tunnel is always smaller than the standard requirement under the influence of surrounding underground buildings (structures) and line planning. Under the working conditions, the construction of the backward tunnel has an unloading effect, generates disturbance on a soil body and generates additional stress and deformation on the existing tunnel segment; meanwhile, the excavation unloading effect of the shield tunnel can also cause the phenomena of upward floating deformation and stress concentration of the existing tunnel segment, and then the overall stability of the advanced tunnel and the stress safety of the segment are influenced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide an existing tunnel tube sheet combination formula reinforced structure, solve and close on the existing tunnel come-up and the deformation scheduling problem that the tunnel excavation arouses.
The technical scheme of the utility model is that:
the utility model provides an existing tunnel segment combination formula reinforced structure, is including slip casting layer, a plurality of steel ring support, a plurality of vertical drawknot shaped steel and counter weight ballast unit, the slip casting layer set up in the periphery of existing tunnel section of jurisdiction and hug closely the outer wall of existing tunnel section of jurisdiction, a plurality of steel ring leg joint on the inner wall of existing tunnel section of jurisdiction and along the axial evenly distributed of existing tunnel section of jurisdiction, a plurality of vertical drawknot shaped steel all be on a parallel with the axis of existing tunnel section of jurisdiction and be the round and distribute, every vertical drawknot shaped steel all connects the reinforcement connection who realizes a plurality of steel ring support on a plurality of steel ring support, counter weight unit set up in the bottom of existing tunnel section of jurisdiction and fixed connection on the inner wall of a plurality of ballast ring support.
And a buffer gasket is arranged between the steel ring support and the inner wall of the existing tunnel segment.
In the plurality of steel ring supports, the supporting steel plates are fixed at the two annular ends of each steel ring support, a jack is connected between every two adjacent steel ring supports, namely, the base of the jack is fixedly connected to the supporting steel plate of one of the steel ring supports, and the ejector rod of the jack is fixedly connected to the supporting steel plate of the other steel ring support.
And the plurality of longitudinal tensile section steels are uniformly distributed along the circumferential direction of the existing tunnel segment.
The counterweight ballast unit comprises a support flat plate and a concrete counterweight block, wherein the support flat plate is horizontally arranged, the concrete counterweight block is arranged on the upper end face of the support flat plate, the support flat plate and the concrete counterweight block extend along the axial direction of the existing tunnel segment, and the support flat plate is fixedly connected to the inner wall of the bottom of the steel ring support.
The steel ring support is connected with the existing tunnel segment through bolts.
The tunnel segment comprises a plurality of existing tunnel segments, each existing tunnel segment is connected with three steel ring supports, and each 6-12 steel ring supports are connected with a circle of longitudinal tie section steel.
The utility model has the advantages that:
(1) the utility model is provided with the grouting layer, and the grouting range is determined according to the relative position of the adjacent tunnel and the existing tunnel, so that certain economical efficiency can be ensured on the premise of ensuring the safety and stability of the existing tunnel;
(2) the utility model is provided with a steel ring bracket and longitudinal tension section steel, which reinforces the structure of the existing tunnel segment, and the longitudinal tension section steel can improve the overall rigidity of the steel ring bracket;
(3) the utility model applies pre-applied axial force to the steel ring bracket through the jack, so that the steel ring bracket is tightly attached to the existing tunnel segment, the stress and deformation of the existing tunnel segment can be ensured to be transmitted to the steel ring bracket, and the integral reinforcement effect is enhanced;
(4) the utility model discloses be provided with counter weight ballast unit, the off-load come-up that the shield tunnel arouses is further resisted to the concrete balancing weight influences, and concrete balancing weight reuse, economic convenience.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention.
Fig. 2 is a transverse sectional view of the present invention.
Fig. 3 is a connecting structure diagram of the adjacent steel ring bracket of the utility model.
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 work belong to the protection scope of the present invention.
Referring to fig. 1 and 2, an existing tunnel segment combined reinforcement structure comprises an injection layer 2, a plurality of steel ring supports 3, a plurality of longitudinal tie section steels 4 and a counterweight ballast unit, wherein the injection layer 2 is arranged at the periphery of an existing tunnel segment 1 and clings to the outer wall of the existing tunnel segment 1, the plurality of steel ring supports 3 are connected to the inner wall of the existing tunnel segment 1 by bolts 5 and are uniformly distributed along the axial direction of the existing tunnel segment 1, a buffer gasket 6 is arranged between the steel ring supports 3 and the inner wall of the existing tunnel segment 1, the plurality of longitudinal tie section steels 4 are parallel to the axial line of the existing tunnel segment 1 and are uniformly distributed in a circle, each longitudinal tie section steel 4 is connected to the plurality of steel ring supports 3 to realize the reinforcement connection of the plurality of steel ring supports 3, the counterweight ballast unit comprises a horizontally arranged support flat plate 7 and a concrete counterweight 8 arranged on the upper end face of the support flat plate 7, support flat 7 and concrete balancing weight 8 and all extend along the axial of existing tunnel section of jurisdiction 1, support flat 7 fixed connection in the inner wall that a plurality of steel ring support 3 are located the bottom.
Referring to fig. 3, in the plurality of steel ring supports 3, supporting steel plates 9 are fixed at two annular ends of each steel ring support 3, a jack 10 is connected between two adjacent steel ring supports 3, that is, a base of the jack 10 is fixedly connected to the supporting steel plate 9 of one of the steel ring supports 3, and a top rod of the jack 10 is fixedly connected to the supporting steel plate 9 of the other steel ring support 3.
The utility model discloses a work progress:
(1) grouting the peripheral soil body of the existing tunnel segment 1 to form a grouting layer 2;
(2) processing the steel ring support 3 outside the hole into roof trusses;
(3) after the grouting layer 2 is solidified, mounting the steel ring supports 3 in the existing tunnel segment 1, connecting the steel ring supports 3 by using bolts 5, arranging buffer washers 6 between the steel ring supports 3 and the existing tunnel segment 1, and connecting 3 steel ring supports in each existing tunnel segment 1;
(4) after 6 steel ring brackets 3 are formed, a circle of longitudinal tie section steel 4 is installed to longitudinally connect the steel ring brackets 3 into a whole;
(5) and arranging a counterweight ballast unit at the bottom of the existing tunnel segment 1 according to the unloading effect caused by the adjacent tunnel to the existing tunnel.
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 (7)
1. The utility model provides an existing tunnel segment combination formula reinforced structure which characterized in that: including slip casting layer, a plurality of steel ring support, a plurality of vertical drawknot shaped steel and counter weight ballast unit, the slip casting layer set up in the periphery of existing tunnel section of jurisdiction and hug closely the outer wall of existing tunnel section of jurisdiction, a plurality of steel ring leg joint on the inner wall of existing tunnel section of jurisdiction and along the axial evenly distributed of existing tunnel section of jurisdiction, a plurality of vertical drawknot shaped steel all be on a parallel with the axis of existing tunnel section of jurisdiction and be the round and distribute, every vertical drawknot shaped steel all connects the reinforcement connection who realizes a plurality of steel ring support on a plurality of steel ring support, counter weight ballast unit set up in the bottom of existing tunnel section of jurisdiction and fixed connection on the inner wall of a plurality of steel ring support.
2. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: and a buffer gasket is arranged between the steel ring support and the inner wall of the existing tunnel segment.
3. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: in the plurality of steel ring supports, the supporting steel plates are fixed at the two annular ends of each steel ring support, a jack is connected between every two adjacent steel ring supports, namely, the base of the jack is fixedly connected to the supporting steel plate of one of the steel ring supports, and the ejector rod of the jack is fixedly connected to the supporting steel plate of the other steel ring support.
4. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: and the plurality of longitudinal tensile section steels are uniformly distributed along the circumferential direction of the existing tunnel segment.
5. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: the counterweight ballast unit comprises a support flat plate and a concrete counterweight block, wherein the support flat plate is horizontally arranged, the concrete counterweight block is arranged on the upper end face of the support flat plate, the support flat plate and the concrete counterweight block extend along the axial direction of the existing tunnel segment, and the support flat plate is fixedly connected to the inner wall of the bottom of the steel ring support.
6. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: the steel ring support is connected with the existing tunnel segment through bolts.
7. The existing tunnel duct piece combined reinforcing structure of claim 1, wherein: the tunnel segment comprises a plurality of existing tunnel segments, each existing tunnel segment is connected with three steel ring supports, and each 6-12 steel ring supports are connected with a circle of longitudinal tie section steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121059962.6U CN215213521U (en) | 2021-05-17 | 2021-05-17 | Combined type reinforcing structure for existing tunnel pipe sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121059962.6U CN215213521U (en) | 2021-05-17 | 2021-05-17 | Combined type reinforcing structure for existing tunnel pipe sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215213521U true CN215213521U (en) | 2021-12-17 |
Family
ID=79419553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121059962.6U Active CN215213521U (en) | 2021-05-17 | 2021-05-17 | Combined type reinforcing structure for existing tunnel pipe sheet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215213521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419419A (en) * | 2022-09-19 | 2022-12-02 | 中国电建集团福建省电力勘测设计院有限公司 | Method for processing position conflict between shield tunneling and existing pipe jacking tunnel |
-
2021
- 2021-05-17 CN CN202121059962.6U patent/CN215213521U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115419419A (en) * | 2022-09-19 | 2022-12-02 | 中国电建集团福建省电力勘测设计院有限公司 | Method for processing position conflict between shield tunneling and existing pipe jacking tunnel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215213521U (en) | Combined type reinforcing structure for existing tunnel pipe sheet | |
| CN202954299U (en) | Template support structure for large-angle V-shaped pier and No.0 block of continuous rigid framework bridge | |
| CN203547753U (en) | Profile steel concrete shaft wall base | |
| CN103603494B (en) | A kind of ultra-thin steel truss sloping core construction method and formwork structure | |
| CN112627854A (en) | Clay tunnel steel lining concrete pouring anti-floating structure and construction method | |
| CN214660232U (en) | Corrugated plate connecting structure for tunnel toughness support | |
| CN215715115U (en) | Anti structure that floats of clay tunnel steel lining concrete placement | |
| CN214883687U (en) | Foundation pit supporting structure | |
| CN210263026U (en) | Anti structure that floats of hole-forming bored concrete pile steel sleeve is protected to mud dado of going out terrace | |
| CN213016369U (en) | Transverse elliptical deformation resistant shield tunnel reinforcing structure with embedded steel plates | |
| CN217651804U (en) | Device for improving steel support stability by utilizing concrete support | |
| CN214116590U (en) | Pile column structure for permanently-faced combined double-steel-pipe upright column pile | |
| CN205742212U (en) | A kind of steel pipe support structure | |
| CN211113669U (en) | Prestressed reinforced concrete breast wall pile | |
| CN210766851U (en) | Cantilever type tower crane foundation structure | |
| CN210507431U (en) | Detachable prevents that pile foundation steel from protecting a section of thick bamboo and sinks device | |
| CN112252307A (en) | Pile column structure for permanently-faced combined double-steel-pipe upright column pile | |
| CN212452665U (en) | Hot spring well horizontal branch pipe protection device in foundation ditch | |
| CN106149682A (en) | A kind of double reinforcement cage structure of poured pile base | |
| CN111456220A (en) | Single-face formwork supporting system for basement exterior wall and application method | |
| CN110565676A (en) | Cantilever type tower crane foundation structure and construction method thereof | |
| CN111525487A (en) | Utility tunnel self-supporting pipeline support | |
| CN218953309U (en) | Supporting structure of pipe-jacking working well | |
| CN205421332U (en) | Contrary coincide underground continuous wall that does of a core section of thick bamboo | |
| CN218843154U (en) | Steel pipe concrete multi-support-column foundation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |