CN112832786A - Reaction frame - Google Patents
Reaction frame Download PDFInfo
- Publication number
- CN112832786A CN112832786A CN202110237790.5A CN202110237790A CN112832786A CN 112832786 A CN112832786 A CN 112832786A CN 202110237790 A CN202110237790 A CN 202110237790A CN 112832786 A CN112832786 A CN 112832786A
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- China
- Prior art keywords
- portal
- fixedly connected
- reaction frame
- frame
- steel frame
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 29
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 238000003466 welding Methods 0.000 claims abstract description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 26
- 230000005641 tunneling Effects 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000008093 supporting effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention provides a reaction frame, and relates to the field of shield tunneling machine equipment. This reaction frame, including the portal, fixedly connected with bottom end rail between the inside bottom of portal, the inner of portal is provided with the circle roof beam, the upper end and the both sides end of circle roof beam are fixed welding respectively on the inner wall of portal, the bottom fixed welding of circle roof beam is in the upper end of bottom end rail, the front end both sides of portal lean on the first bearing diagonal of the equal fixedly connected with of upper end department, the front end both sides of portal lean on the equal fixedly connected with second bearing diagonal of lower extreme department, two support roof racks of the front side top fixedly connected with of portal, fixedly connected with wedge steel ring on the back wall of circle roof beam. The invention provides a reaction frame, which is additionally provided with a wedge-shaped steel ring, so that the shield can be ensured to start, and the reaction frame is stressed uniformly and cannot deform due to acting force.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine equipment, in particular to a reaction frame.
Background
With the development of economy, the shield tunnel becomes a main construction method for urban underground rail transit construction and underground space development in soft soil areas in China. The shield tunnel is a tunnel underground excavation construction method which adopts a shield tunneling machine to excavate and takes reinforced concrete segments as lining support. The construction of tunnels or various underground pipelines by the shield method generally comprises the steps of installing, debugging and commissioning a shield in a pre-constructed working well, accurately placing the shield on a base which accords with a design axis, and starting tunneling construction (shield starting) into the stratum along the design axis after all construction preparation works are ready. When the shield is about to reach the end point, the present position of the shield is accurately measured, and the state of the shield is adjusted and controlled, so that the shield can correctly enter a base (the shield reaches) in a receiving well which is built and installed in advance
The starting procedure of the shield is a key procedure for constructing the tunnel by the shield method, and the quality of the construction technology of the procedure directly influences the axial quality of the built tunnel or pipeline, the environmental protection effect at the opening of the starting section and the success or failure of the engineering construction. When the shield starts to dig in, the shield machine is pushed forwards to provide counterforce for digging of the shield machine through a counterforce frame behind the counterforce frame, the counterforce frame is generally supported on a reinforced concrete frame at the bottom layer of the shield starting working well, and the shield starting working well is in a regular rectangular structure under the normal condition considering the construction convenience so as to adapt to a supporting surface for providing counterforce.
The existing reaction frame has a simple structure, is easy to deform under stress when a shield machine starts to advance forwards, cannot provide a reaction force well, and causes problems in shield starting, thereby affecting the quality of a built tunnel.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a reaction frame, which solves the problems that the existing reaction frame is easy to deform under stress when a shield machine starts to advance and cannot provide a reaction force well.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a reaction frame, includes the portal, fixedly connected with bottom end rail between the inside bottom of portal, the inner of portal is provided with the circle roof beam, the upper end and the both sides end of circle roof beam are fixed welding respectively on the inner wall of portal, the bottom fixed welding of circle roof beam is in the upper end of bottom end rail, the front end both sides of portal lean on the first bearing diagonal of the equal fixedly connected with of upper end department, the front end both sides of portal lean on the equal fixedly connected with second bearing diagonal of lower extreme department, two support roof racks of front side top fixedly connected with of portal, fixedly connected with wedge steel ring on the back wall of circle roof beam.
Preferably, the portal includes a rectangular channel steelframe and a polylith reinforcing plate, polylith a equidistant fixed connection is in the rectangular channel steelframe inner for the reinforcing plate.
Preferably, the round beam comprises a circular groove steel frame and a plurality of second reinforcing plates, and the second reinforcing plates are fixedly connected to the inner end of the rectangular groove steel frame at equal intervals.
Preferably, the wedge-shaped steel ring comprises a second annular groove steel frame and a plurality of third reinforcing plates, and the third reinforcing plates are fixedly connected to the inner end of the second annular groove steel frame at equal intervals.
Preferably, the door frame is arranged in an inverted concave shape.
Preferably, a reinforcing mandril is fixedly connected between the first inclined support and the second inclined support.
Preferably, the opening of the first annular groove steel frame faces the front end, and the opening of the second annular groove steel frame faces four sides.
The working principle is as follows: keep stable when can letting the portal atress through first bearing diagonal and second bearing diagonal, can not rock, support the roof-rack and contact with fixed concrete when the shield constructs the inception for the upper end of portal also can provide reaction force, thereby guaranteed that the whole atress of portal is even, and wedge steel ring then can let the shield construct the machine and contact inseparabler with whole reaction frame, thereby guarantee can not appear too big shake when initiating.
(III) advantageous effects
The invention provides a reaction frame. The method has the following beneficial effects:
the invention provides a reaction frame, wherein two inclined supports are arranged on two sides of the front side of the reaction frame, and can form support with the ground when a shield machine starts, so that the portal frame of the reaction frame can be stably placed near the lower end, the top end of the portal frame can also provide reaction force due to the design of two supporting top frames, the upper part and the lower part of the portal frame can be stressed and are not easy to deform, and meanwhile, the shield machine can be in closer contact with the reaction frame due to the design of a wedge-shaped steel ring, so that the success of shield starting is guaranteed.
Drawings
FIG. 1 is a side view of the structure of the present invention;
FIG. 2 is a front view of the present invention;
fig. 3 is a rear view of the structure of the present invention.
Wherein, 1, a portal frame; 2. a lower cross beam; 3. a circular beam; 4. a first diagonal brace; 5. a second diagonal brace; 6. reinforcing the ejector rod; 7. supporting the top frame; 8. a wedge-shaped steel ring; 11. a rectangular channel steel frame; 12. a first reinforcing plate; 31. a first annular groove steel frame; 32. a second reinforcing plate; 81. a second annular groove steel frame; 82. and a third reinforcing plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1-3, an embodiment of the invention provides a reaction frame, which includes a gantry 1, wherein a lower cross beam 2 is fixedly connected between the inner bottom ends of the gantry 1, the lower cross beam 2 and the gantry 1 are fixedly welded, a circular beam 3 is arranged at the inner end of the gantry 1, the upper end and both side ends of the circular beam 3 are respectively and fixedly welded on the inner wall of the gantry 1, the bottom end of the circular beam 3 is fixedly welded on the upper end of the lower cross beam 2, first inclined supports 4 are fixedly connected at both sides of the front end of the gantry 1 close to the upper end, second inclined supports 5 are fixedly connected at both sides of the front end of the gantry 1 close to the lower end, the included angle between the first inclined supports 4 and the ground is larger than the included angle between the second inclined supports 5 and the ground, two supporting top frames 7 are fixedly connected at the top end of the front side of the gantry 1, and a.
The portal frame 1 comprises a rectangular channel steel frame 11 and a plurality of first reinforcing plates 12, the plurality of first reinforcing plates 12 are fixedly connected to the inner end of the rectangular channel steel frame 11 at equal intervals, the design has high supporting strength, but the consumed materials are less, the round beam 3 comprises a first annular channel steel frame 31 and a plurality of second reinforcing plates 32, the plurality of second reinforcing plates 32 are fixedly connected to the inner end of the rectangular channel steel frame 11 at equal intervals, the wedge-shaped steel ring 8 comprises a second annular channel steel frame 81 and a plurality of third reinforcing plates 82, the plurality of third reinforcing plates 82 are fixedly connected to the inner end of the second annular channel steel frame 81 at equal intervals, the portal frame 1 is arranged in an inverted shape, a reinforcing ejector rod 6 is fixedly connected between the first inclined support 4 and the second inclined support 5, the reinforcing ejector rod 6 can reinforce the connection of the first inclined support 4 and the second inclined support 5, the supporting effect of the two inclined supports is better, the opening of the first annular channel steel frame 31, the opening of the second annular groove steel frame 81 faces four sides.
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. A reaction frame, includes portal (1), its characterized in that: fixedly connected with bottom end rail (2) between the inside bottom of portal (1), the inner of portal (1) is provided with circle roof beam (3), the upper end and the both sides end difference fixed welding of circle roof beam (3) are on the inner wall of portal (1), the bottom fixed welding of circle roof beam (3) is in the upper end of bottom end rail (2), the front end both sides of portal (1) lean on the first bearing diagonal (4) of the equal fixedly connected with of upper end department, the front end both sides of portal (1) lean on the equal fixedly connected with second bearing diagonal (5) of lower extreme department, two support roof racks (7) of front side top fixedly connected with of portal (1), fixedly connected with wedge steel ring (8) on the back wall of circle roof beam (3).
2. A reaction frame according to claim 1, wherein: the gantry (1) comprises a rectangular channel steel frame (11) and a plurality of reinforcing plates (12), wherein the reinforcing plates (12) are fixedly connected to the inner end of the rectangular channel steel frame (11) at equal intervals.
3. A reaction frame according to claim 1, wherein: the circular beam (3) comprises a circular groove steel frame (31) and a plurality of second reinforcing plates (32), and the second reinforcing plates (32) are fixedly connected to the inner end of the rectangular groove steel frame (11) at equal intervals.
4. A reaction frame according to claim 1, wherein: the wedge-shaped steel ring (8) comprises a second annular groove steel frame (81) and a plurality of third reinforcing plates (82), and the third reinforcing plates (82) are fixedly connected to the inner end of the second annular groove steel frame (81) at equal intervals.
5. A reaction frame according to claim 1, wherein: the door frame (1) is arranged in an inverted concave shape.
6. A reaction frame according to claim 1, wherein: and a reinforcing mandril (6) is fixedly connected between the first inclined support (4) and the second inclined support (5).
7. A reaction frame according to claim 3, wherein: the opening of the first annular groove steel frame (31) faces the front end, and the opening of the second annular groove steel frame (81) faces the four sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237790.5A CN112832786A (en) | 2021-03-04 | 2021-03-04 | Reaction frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110237790.5A CN112832786A (en) | 2021-03-04 | 2021-03-04 | Reaction frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112832786A true CN112832786A (en) | 2021-05-25 |
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ID=75934543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110237790.5A Pending CN112832786A (en) | 2021-03-04 | 2021-03-04 | Reaction frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112832786A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758634A (en) * | 2012-08-01 | 2012-10-31 | 上海隧道工程股份有限公司 | Assembling type reaction frame device for shield launching and propulsion |
| CN206368708U (en) * | 2016-12-30 | 2017-08-01 | 中船重型装备有限公司 | A kind of shield machine reaction frame |
| CN109356598A (en) * | 2018-12-08 | 2019-02-19 | 成都鑫都建设工程有限公司 | A kind of shield machine reaction frame in constructing tunnel |
| CN109435021A (en) * | 2018-12-25 | 2019-03-08 | 六安远大住宅工业有限公司 | A kind of die assembly and its application method for prefabricated U-shaped component |
| CN208605187U (en) * | 2018-06-26 | 2019-03-15 | 北京市政建设集团有限责任公司 | A kind of shield machine is secondary to originate tunneling construction reaction frame |
| CN209067211U (en) * | 2018-12-04 | 2019-07-05 | 中铁十二局集团第二工程有限公司 | A kind of assembled shield reaction frame |
| CN110273691A (en) * | 2019-08-05 | 2019-09-24 | 中交路桥北方工程有限公司 | A kind of shield machine reaction frame |
| CN110617397A (en) * | 2019-09-04 | 2019-12-27 | 徐州九鼎钢结构有限公司 | Steel structure |
| EP3626931A1 (en) * | 2018-09-24 | 2020-03-25 | Ferrovial Agroman UK Ltd | Movable shove frame structure, device for starting tunnels and method for starting the construction of tunnels |
| CN210289780U (en) * | 2019-08-05 | 2020-04-10 | 中交路桥北方工程有限公司 | Shield constructs quick-witted reaction frame |
| CN212250037U (en) * | 2020-04-25 | 2020-12-29 | 中铁十五局集团城市轨道交通工程有限公司 | Counterforce device for shield starting |
-
2021
- 2021-03-04 CN CN202110237790.5A patent/CN112832786A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758634A (en) * | 2012-08-01 | 2012-10-31 | 上海隧道工程股份有限公司 | Assembling type reaction frame device for shield launching and propulsion |
| CN206368708U (en) * | 2016-12-30 | 2017-08-01 | 中船重型装备有限公司 | A kind of shield machine reaction frame |
| CN208605187U (en) * | 2018-06-26 | 2019-03-15 | 北京市政建设集团有限责任公司 | A kind of shield machine is secondary to originate tunneling construction reaction frame |
| EP3626931A1 (en) * | 2018-09-24 | 2020-03-25 | Ferrovial Agroman UK Ltd | Movable shove frame structure, device for starting tunnels and method for starting the construction of tunnels |
| CN209067211U (en) * | 2018-12-04 | 2019-07-05 | 中铁十二局集团第二工程有限公司 | A kind of assembled shield reaction frame |
| CN109356598A (en) * | 2018-12-08 | 2019-02-19 | 成都鑫都建设工程有限公司 | A kind of shield machine reaction frame in constructing tunnel |
| CN109435021A (en) * | 2018-12-25 | 2019-03-08 | 六安远大住宅工业有限公司 | A kind of die assembly and its application method for prefabricated U-shaped component |
| CN110273691A (en) * | 2019-08-05 | 2019-09-24 | 中交路桥北方工程有限公司 | A kind of shield machine reaction frame |
| CN210289780U (en) * | 2019-08-05 | 2020-04-10 | 中交路桥北方工程有限公司 | Shield constructs quick-witted reaction frame |
| CN110617397A (en) * | 2019-09-04 | 2019-12-27 | 徐州九鼎钢结构有限公司 | Steel structure |
| CN212250037U (en) * | 2020-04-25 | 2020-12-29 | 中铁十五局集团城市轨道交通工程有限公司 | Counterforce device for shield starting |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |
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| RJ01 | Rejection of invention patent application after publication |