CN109162760A - A kind of constructing metro tunnel safety-door device and its construction method - Google Patents
A kind of constructing metro tunnel safety-door device and its construction method Download PDFInfo
- Publication number
- CN109162760A CN109162760A CN201811061873.8A CN201811061873A CN109162760A CN 109162760 A CN109162760 A CN 109162760A CN 201811061873 A CN201811061873 A CN 201811061873A CN 109162760 A CN109162760 A CN 109162760A
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- Prior art keywords
- tunnel
- reaction frame
- portal
- support
- 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.)
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 17
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000565 sealant Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 239000004576 sand Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21F17/103—Dams, e.g. for ventilation
- E21F17/12—Dam doors
Abstract
A kind of constructing metro tunnel safety-door device and its construction method, including support, the support is obliquely installed, the lower end of support is fixed on bottom plate by foundation bolt, the upper end of support and reaction frame are welded to connect, and reaction frame is equipped with jack, are bolted to connection between the pedestal and reaction frame of jack, the mandril of jack is contacted with the portal plate being arranged on tunnel portal, offers switching door on portal plate；Portal plate is equipped with symmetrical pressurizing valve and pressure-relief valve.Using the above structure and method, tunnel quick closure can be realized when water burst occurs, gushes sand accident, and further leak of incident area is prevented to collapse.
Description
Technical field
The present invention relates to constructing metro tunnel field, especially a kind of constructing metro tunnel safety-door device and its construction
Method.
Background technique
With the high speed development of China's economic technology, subway tunnel project is risen extensively in each big city in the whole nation, China
Though iron tunnel construction technology has made considerable progress and has developed, in recent years subway tunnel gushing water, gush the accidents such as sand and see repeatly not
It is fresh, great threat is caused to the safety of life and property of the people.Up to now, people for constructing metro tunnel water burst, gush sand
The prevention and disposition of accident are not yet formed with effective safety prevention measure.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of constructing metro tunnel safety-door device and its construction parties
Method can realize tunnel quick closure when water burst occurs, gushes sand accident, and the further leakage of incident area is prevented to collapse.
In order to solve the above technical problems, the technical scheme adopted by the invention is that: a kind of constructing metro tunnel safety door
Device, including support, the support are obliquely installed, and the lower end of support is fixed on bottom plate by foundation bolt, support
Upper end and reaction frame be welded to connect, reaction frame is equipped with jack, solid by bolt between the pedestal and reaction frame of jack
Fixed connection, the mandril of jack are contacted with the portal plate being arranged on tunnel portal, offer switching door on portal plate；
Portal plate is equipped with symmetrical pressurizing valve and pressure-relief valve.
In preferred scheme, in the gap between the portal plate and tunnel portal, between switching door and portal plate
Ring-shaped rubber pad is equipped in gap.
In preferred scheme, it is additionally provided with Security Module above the portal plate, in the one side that Security Module is contacted with portal plate
Equipped with safety cabin door.
In preferred scheme, the reaction frame includes the column that tunnel portal two sides are arranged in, and is located at tunnel portal two
Reaction frame upper beam and reaction frame lower beam are equipped between the column of side, tunnel portal is located under reaction frame upper beam, reaction frame
Crossbeam and column are formed by rectangle local.
In preferred scheme, the reaction frame upper beam, reaction frame lower beam and column are formed by rectangular frame
Structure is equipped with diagonal brace on angular position, and jack is arranged in diagonal brace and reaction frame upper beam, reaction frame lower beam and column
Link position on.
One kind being used for constructing metro tunnel safety-door device construction method, comprising the following steps:
1) support one end is connect by pre-assembled reaction frame with jack base with reaction frame；
2) it positions and sets up reaction frame, reaction frame is vertically provided on the end position of tunnel duct piece, and utilize foundation bolt
Reaction frame lower end is fixed；
3) mandril of jack is packed up；
4) pre-assembled portal plate, and the ring-shaped rubber pad that is adhesively fixed in one side of the portal plate towards tunnel duct piece；
5) it positions and lifts portal plate, portal plate is lifted to tunnel duct piece end and is close to it with tunnel duct piece end face；
6) hanging device is kept after stablizing, and is exerted a force using jack pair portal plate, is held out against portal plate and be fixed on tunnel
On the end face of section of jurisdiction；
7) sealant is smeared on the interior outside for the one side that ring-shaped rubber pad is contacted with portal plate；
8) pressurizing valve and pressure-relief valve are installed on portal plate；
9) 1) -8 are completed) after installation steps, switching door is closed, air-tightness in tunnel is detected.
In preferred scheme, in the step 2), after the erection for completing reaction frame, the fixation being supported, branch
Using being flexibly connected between support upper end and reaction frame, the fixation of support specifically includes the following steps:
1) support lower end is pushed towards tunnel duct piece direction, makes to support the rotation occurred around the upper end on vertical plane；
2) after can not continue to press on support lower end, support lower end is fixed on bottom plate using foundation bolt.
In preferred scheme, the support is more, and step 1) successively carries out more branch from tunnel to portal plate direction
The lower end of support pushes.
In preferred scheme, the propulsion of the support lower end, which uses, is arranged hoist engine on the bottom plate below portal plate, benefit
The movement of support lower end is pulled with hoist engine, after completing fixation of the support lower end on bottom plate, hoist engine unloads power and removes.
In preferred scheme, in the step 7), sealant uses glass fibre glue.
A kind of constructing metro tunnel safety-door device provided by the present invention and its construction method, by using above-mentioned knot
Structure and method, have the advantages that
(1) when Tunnel Gushing occurs, gushes sand accident, tunnel closing can be carried out with most fast speed, plays water blockoff, blocks up sand
Purpose；
(2) it after tunnel closing, is filled the water by pressurizing valve into tunnel, gas injection with Water And Earth Pressures inside and outside balance tunnel slows down water
Sand further leaks and collapses efficiency；
(3) under the conditions of tunnel internal is with pressure, staff can carry out tunnel internal by Security Module and check and repair
Operation, and the case where staff's access tunnel not will cause imbalance of pressure in tunnel.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples:
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is side structure schematic diagram of the invention.
Fig. 3 is reaction frame structural schematic diagram of the invention.
Fig. 4 is ring-shaped rubber pad structural schematic diagram of the invention.
In figure: support 1, reaction frame 2, jack 3, ring-shaped rubber pad 4, portal plate 5, pressurizing valve 6, Security Module 7, tunneltron
Piece 8, safety cabin door 9, switching door 10, crossbeam 11, reaction frame upper beam 12, reaction frame lower beam 13, column 14, pressure-relief valve 15,
Diagonal brace 16.
Specific embodiment
Embodiment 1:
As shown in figure 1, a kind of constructing metro tunnel safety-door device, including support 1, the support 1 is obliquely installed, support 1
Lower end be fixed on bottom plate by foundation bolt, the upper end and reaction frame 2 for supporting 1 are welded to connect, and reaction frame 2 is equipped with
Jack 3 is bolted to connection between the pedestal and reaction frame 2 of jack 3, and the mandril of jack 3 and setting are in tunnel
Portal plate 5 on portal contacts, and offers switching door 10 on portal plate 5；
Portal plate 5 is equipped with symmetrical pressurizing valve 6 and pressure-relief valve 15.
In preferred scheme, in the gap between the portal plate 5 and tunnel portal, switching door 10 and portal plate 5 it
Between gap in be equipped with ring-shaped rubber pad 4.
In preferred scheme, be additionally provided with Security Module 7 above the portal plate 5, Security Module 7 contacted with portal plate 5 one
Face is equipped with safety cabin door 9.
In preferred scheme, the reaction frame 2 includes the column 14 that tunnel portal two sides are arranged in, and is located at tunnel portal
Reaction frame upper beam 12 and reaction frame lower beam 13 are equipped between the column 14 of two sides, tunnel portal is located at reaction frame upper beam
12, reaction frame lower beam 13 and column 14 are formed by rectangle local.
In preferred scheme, the reaction frame upper beam 12, reaction frame lower beam 13 and column 14 are formed by square
Shape frame structure is equipped with diagonal brace 16 on angular position, and the setting of jack 3 is under diagonal brace 16 and reaction frame upper beam 12, reaction frame
On the link position of crossbeam 13 and column 14.
In this example, ring-shaped rubber pad 4 is adhesively fixed on portal plate 5 by glass fibre, with ring-shaped rubber pad 4 and portal
Guarantee that fitting is close between plate 5, to guarantee leakproofness, and pass through the cooperation of reaction frame 2 and jack 3, realize portal plate 5 with
The fitting of tunnel duct piece 8, to be further ensured that the sealing of ring-shaped rubber pad 4 Yu tunnel duct piece 8.
Portal plate 5 is made of Q235B steel plate, and support uses 11H type steel support.
Switching door 10 on portal plate 5 is to provide channel for tunnel ventilation pipe, battery truck during normal construction.
Security Module 7 is arranged as shown in Figure 1, 2, and the bulkhead of Security Module 7 is made of Q345R steel plate, maximum working pressure
0.5MPa, dischargeable capacity 3.6m2, there are two safety cabin doors 9, one to be located on portal plate 5 for setting on Security Module 7, another position
In on one end far from portal plate 5, in tunnel under pressurized state, personnel open the safety cabin door 9 on portal plate 5 and enter peace
In full cabin 7, after closing the safety cabin door 9 on portal plate 5, enters in tunnel after opening the safety cabin door 9 in tunnel, made
Industry.
Switching door 10 is made of Q235B steel plate, and when normal construction, switching door 10 is tunnel ventilation pipe, battery truck, construction
Personnel provide channel, and water burst occurs for tunnel, when gushing sand accident, can emergency cut-off switching door 10, play the role of water blockoff, stifled sand.
Embodiment 2:
On the basis of using structure described in embodiment 1, the erection of safety device is carried out using following steps:
1) 1 one end of support is connect by pre-assembled reaction frame 2 with 3 pedestal of jack with reaction frame 2；
2) it positions and sets up reaction frame 2, reaction frame 2 is vertically provided on the end position of tunnel duct piece 8, and utilize lower margin spiral shell
2 lower end of reaction frame is fixed in bolt；
3) mandril of jack 3 is packed up；
4) pre-assembled portal plate 5, and the ring-shaped rubber pad 4 that is adhesively fixed in one side of the portal plate 5 towards tunnel duct piece 8；
5) portal plate 5 is positioned and lifted, portal plate 5 is lifted to 8 end of tunnel duct piece and keeps it tight with 8 end face of tunnel duct piece
Patch；
6) hanging device is kept after stablizing, and is exerted a force using jack 3 to portal plate 5, is held out against portal plate 5 and be fixed on tunnel
On 8 end face of road section of jurisdiction；
7) sealant is smeared on the interior outside for the one side that ring-shaped rubber pad 4 is contacted with portal plate 5；
8) pressurizing valve 6 and pressure-relief valve 15 are installed on portal plate 5；
9) 1) -8 are completed) after installation steps, switching door 10 is closed, air-tightness in tunnel is detected.
In preferred scheme, in the step 2), after the erection for completing reaction frame 2, it is supported 1 fixation,
Support between 1 upper end and reaction frame 2 using being flexibly connected, support 1 fixation specifically includes the following steps:
1) 1 lower end of support is pushed towards 8 direction of tunnel duct piece, makes support 1 that the rotation on vertical plane occur around the upper end；
2) after can not continue to press on 1 lower end of support, 1 lower end of support is fixed on bottom plate using foundation bolt.
In preferred scheme, the support 1 is more, and step 1) successively carries out more from tunnel to 5 direction of portal plate
The lower end of support 1 pushes.
In preferred scheme, hoist engine is arranged on the bottom plate using 5 lower section of portal plate in the propulsion of 1 lower end of support,
The movement of 1 lower end of support is pulled using hoist engine, after completing fixation of 1 lower end of support on bottom plate, hoist engine unloads power and tears open
It removes.
In preferred scheme, in the step 7), sealant uses glass fibre glue.
When water burst in tunnel occurs, gushes sand accident, after evacuating the construction personnel in tunnel, switching door 10 is closed, it is right
Water burst gushes sand and plays and intercepts purpose, is then turned on pressurizing valve 6, to pressurizeing in the sealing area of tunnel internal, reaches balance
The purpose of Water And Earth Pressures inside and outside tunnel, hereafter, staff open portal plate 5 on safety cabin door 9, into Security Module 7 in after,
Closed safe hatch door 9 enters progress water burst in tunnel after the safety cabin door 9 being then turned on 7 other end of Security Module, gushes sand region
Leak stopping repair, after completing repair, staff leaves tunnel, is then turned on pressure-relief valve 15, is discharged in tunnel
Ponding.
Claims (10)
1. a kind of constructing metro tunnel safety-door device, including support (1), it is characterized in that: support (1) inclination is set
It sets, the lower end of support (1) is fixed on bottom plate by foundation bolt, and the upper end of (1) and reaction frame (2) welding is supported to connect
It connects, reaction frame (2) is equipped with jack (3), is bolted to connection between the pedestal and reaction frame (2) of jack (3), thousand
The mandril on jin top (3) is contacted with the portal plate (5) being arranged on tunnel portal, and switching door (10) are offered on portal plate (5)；
Portal plate (5) is equipped with symmetrical pressurizing valve (6) and pressure-relief valve (15).
2. a kind of constructing metro tunnel safety-door device according to claim 1, it is characterised in that: the portal plate
(5) ring-shaped rubber pad is equipped in the gap in the gap between tunnel portal, between switching door (10) and portal plate (5)
(4).
3. a kind of constructing metro tunnel safety-door device according to claim 1, it is characterised in that: the portal plate
(5) top is additionally provided with Security Module (7), and the one side that Security Module (7) is contacted with portal plate (5) is equipped with safety cabin door (9).
4. a kind of constructing metro tunnel safety-door device according to claim 1, it is characterised in that: the reaction frame
(2) include the column (14) that tunnel portal two sides are set, reaction frame is equipped between the column (14) of tunnel portal two sides
Upper beam (12) and reaction frame lower beam (13), tunnel portal be located at reaction frame upper beam (12), reaction frame lower beam (13) with
And column (14) is formed by rectangle local.
5. a kind of constructing metro tunnel safety-door device according to claim 4, it is characterised in that: the reaction frame
Upper beam (12), reaction frame lower beam (13) and column (14) are formed by rectangular frame structure and are equipped with tiltedly on angular position
It supports (16), jack (3) setting is in diagonal brace (16) and reaction frame upper beam (12), reaction frame lower beam (13) and column (14)
Link position on.
6. according to claim 5 a kind of for constructing metro tunnel safety-door device construction method, it is characterised in that
The following steps are included:
1) support (1) one end is connect by pre-assembled reaction frame (2) with jack (3) pedestal with reaction frame (2)；
2) it positions and sets up reaction frame (2), reaction frame (2) is vertically provided on the end position of tunnel duct piece (8), and is utilized
Reaction frame (2) lower end is fixed in foundation bolt；
3) mandril of jack (3) is packed up；
4) pre-assembled portal plate (5), and the ring-shaped rubber pad that is adhesively fixed in one side of the portal plate (5) towards tunnel duct piece (8)
(4)；
5) it positions and lifts portal plate (5), portal plate (5) are lifted to tunnel duct piece (8) end and make itself and tunnel duct piece (8)
It is close to end face；
6) hanging device is kept after stablizing, and is exerted a force using jack (3) to portal plate (5), holds out against portal plate (5) solid
It is scheduled on tunnel duct piece (8) end face；
7) sealant is smeared on the interior outside for the one side that ring-shaped rubber pad (4) is contacted with portal plate (5)；
8) pressurizing valve (6) and pressure-relief valve (15) are installed on portal plate (5)；
9) 1) -8 are completed) after installation steps, closes switching door (10), air-tightness in tunnel is detected.
7. according to claim 6 a kind of for constructing metro tunnel safety-door device construction method, it is characterised in that:
In the step 2), after the erection for completing reaction frame (2), it is supported the fixation of (1), supports (1) upper end and counter-force
Between frame (2) using be flexibly connected, support (1) fixation specifically includes the following steps:
1) support (1) lower end is pushed towards tunnel duct piece (8) direction, makes the rotation for supporting (1) to occur on vertical plane around the upper end；
2) after can not continue to press on support (1) lower end, support (1) lower end is fixed on bottom plate using foundation bolt.
8. according to claim 7 a kind of for constructing metro tunnel safety-door device construction method, it is characterised in that:
The support (1) is more, and step 1) is pushed from tunnel to the lower end that portal plate (5) direction successively carries out more supports (1).
9. according to claim 8 a kind of for constructing metro tunnel safety-door device construction method, it is characterised in that:
The propulsion of described support (1) lower end is pulled using hoist engine and is supported using hoist engine is arranged on the bottom plate below portal plate (5)
(1) movement of lower end, after completing fixation of support (1) lower end on bottom plate, hoist engine unloads power and removes.
10. according to claim 6 a kind of for constructing metro tunnel safety-door device construction method, feature exists
In: in the step 7), sealant uses glass fibre glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061873.8A CN109162760B (en) | 2018-09-12 | 2018-09-12 | Safety door device for subway tunnel construction and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811061873.8A CN109162760B (en) | 2018-09-12 | 2018-09-12 | Safety door device for subway tunnel construction and construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109162760A true CN109162760A (en) | 2019-01-08 |
| CN109162760B CN109162760B (en) | 2024-02-27 |
Family
ID=64894761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811061873.8A Active CN109162760B (en) | 2018-09-12 | 2018-09-12 | Safety door device for subway tunnel construction and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109162760B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN109162760B (en) | 2024-02-27 |
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