CN109441476A - A kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ - Google Patents
A kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ Download PDFInfo
- Publication number
- CN109441476A CN109441476A CN201811568762.6A CN201811568762A CN109441476A CN 109441476 A CN109441476 A CN 109441476A CN 201811568762 A CN201811568762 A CN 201811568762A CN 109441476 A CN109441476 A CN 109441476A
- Authority
- CN
- China
- Prior art keywords
- support
- crossbar
- tunnel
- disposed
- security protection
- 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.)
- Granted
Links
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 16
- 239000003818 cinder Substances 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000010276 construction Methods 0.000 abstract description 21
- 239000011435 rock Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008521 reorganization Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/122—Working or loading platforms
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention provides a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ, including first support and horizontal connection in the second support of first support upper surface side, the first support includes multiple first crossbars and multiple vertical bars for being connected to first crossbar end bottom surface, the second support includes multiple for connecting the second crossbar of first support, and multiple braces being connected in the middle part of second crossbar for being supported with tunnel arch wall, the first crossbar and second crossbar are disposed with telescopic rod close to tunnel arch wall one end, it can provide in constructing tunnel horizontally-supported, improve the stability of rack, and it can control surrouding rock deformation, guarantee construction safety；Rack top surface is laid with by steel plate, and surrounding has protective net, and rack top surface unloads cinder notch with movable, makes full use of its flexibility, effectively increases slag discharge efficiency, is accelerated construction efficiency, is shortened the construction period, and economic benefit is obvious.
Description
Technical field
The present invention relates to technical field of tunnel construction, and in particular to a kind of existing tunnel safety of enlarging constructing tunnel in situ
Protective multifunction rack.
Background technique
Currently, China oneself become in the world tunnel number at most, situation is most complicated, with fastest developing speed country.At some
In mouthful dense large- and-medium size cities or on the huge highway of vehicle flowrate, the transport capacity in tunnel oneself become and restrict traffic
Bottleneck.In face of increasingly severeer communications and transportation problem, existing tunnel carries out reorganization and expansion to meet the needs of communications and transportation,
The inevitable choice being compelled to do as certain local infrastructures.Currently, both at home and abroad tunnel reorganization and expansion field research compared with
It is few, while the research of its ancillary equipment also more lacks.The used rack function of current tunnel engineering construction is more single, construction
Efficiency is lower, is not suitable for the Enlargement excavation in tunnel in situ, and the rack of existing structure in the construction process can not be to
The existing tunnel of excavation is protected, and not can guarantee the safety of rack bottom construction in digging process, is not suitable for permanent hair
Exhibition and use.
Summary of the invention
The present invention provides a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ, and function is complete
Kind, convenient for assembling, flexible and convenient can be improved construction speed, shorten the construction period, and can be effectively existing to what is excavated
It is protected in tunnel.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ, including first support and level are even
It is connected to the second support of first support upper surface side, the first support includes multiple first crossbar and multiple is connected to
The vertical bar of one crossbar end bottom surface, the second support include multiple for connecting the second crossbars of first support and multiple
It is connected in the middle part of second crossbar and encircles for the brace with tunnel arch wall support, the first crossbar and second crossbar close to tunnel
Wall one end is disposed with telescopic rod, and the first support and second support upper surface are arranged with support plate, and open in the middle part of support plate
Equipped with unloading cinder notch, it is described unload cinder notch bottom end and be disposed with unload slag chute.
Further, the first reinforcing rib, phase are arranged between parallel vertical bar between parallel first crossbar
The second reinforcing rib is disposed between the first crossbar and vertical bar of connection, it is between parallel second crossbar and parallel oblique
Third reinforcing rib is arranged between bar.
Further, described unload is disposed with baffle above cinder notch, and in the connection of baffle hinge and support plate.
Further, the telescopic rod is hydraulic telescopic rod, and telescopic rod end is disposed with rubber pad.
Further, structural member and first support and second in structural member and second support in the first support
Frame is connected by high-strength bolt, and the tilt angle of brace is adjusted by high-strength bolt in second support.
Further, the first support and second support upper surface edge-perpendicular are disposed with protective net.
Further, the vertical bar lateral wall is disposed with ladder, and the vertical bar bottom is disposed with idler wheel, the vertical bar middle part
It is disposed with pull line.
From the above technical scheme, the invention has the following beneficial effects: racks is led to by first support and second support
It crosses high-strength bolt to connect and compose, it can be achieved that the two-part separation in left and right and combine, and its longitudinally opposed position can be changed, simultaneously
Rack both ends have telescopic rod, can provide in constructing tunnel horizontally-supported, improve the stability of rack, and can control and enclose
Rock deformation, guarantees construction safety；Rack top surface is laid with by steel plate, and surrounding has protective net, to the construction personnel on rack
And the protection of the conveying people below rack is preferable, cinder notch is unloaded with movable in rack top surface, makes full use of its flexibility, effectively
Slag discharge efficiency is improved, accelerates construction efficiency, shortens the construction period, and economic benefit is obvious.
Detailed description of the invention
Fig. 1 is rack front view of the present invention；
Fig. 2 is rack side view；
Fig. 3 is rack top view；
Fig. 4 is that rack unloads cinder notch and baffle schematic diagram.
In figure: 1, first support, 2, second support, 3, first crossbar, 4, vertical bar, 5, second crossbar, 6, brace, 7, flexible
Bar, 8, support plate, 9, unload cinder notch, 10, unload slag chute, the 11, first reinforcing rib, the 12, second reinforcing rib, 13, third reinforcing rib, 14,
Baffle, 15, protective net, 16, ladder, 17, idler wheel, 18, high-strength bolt.
Specific embodiment
With reference to the accompanying drawing to a kind of existing tunnel security protection multifunctional table of enlarging constructing tunnel in situ of the invention
Frame preferred embodiment is described in detail.
As shown in Figure 1-3, a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ, including first
In the second support 2 of first support upper surface side, first support 1 includes multiple 3 He of first crossbar for bracket 1 and horizontal connection
Multiple vertical bars 4 for being connected to first crossbar end bottom surface, second support 2 include multiple the second cross for connecting first support 1
Bar 5 and it is multiple be connected in the middle part of second crossbar for and tunnel arch wall support brace 6, in first support 1 structural member and
Structural member and first support 1 are connected by high-strength bolt 18 with second support 2 in second support 2, and second support
On 2 the tilt angle of brace 6 adjusted by high-strength bolt, it can be achieved that the separation of left-right parts with combine, and it is vertical that it can be changed
To relative position, the later period is convenient for disassembly, and will be sent into tunnel after the completion of first support 1 and the connection of second support 2, is passed through height
Strength bolts adjust the tilt angle of brace 6, so that the end of brace 6 is in contact with tunnel arch wall, and then play support second
The purpose of bracket 2 improves the stability of rack；
First crossbar and second crossbar are disposed with telescopic rod 7 close to tunnel arch wall one end, after reaching predetermined position, make to stretch
The end of contracting bar is in contact with dike, applies horizontal restraint to tunnel by the telescopic rod 7 at rack both ends, provide it is horizontally-supported,
Rack double swerve is avoided, while can control the surrouding rock deformation generated after tunnel excavation, guarantees construction safety, and telescopic rod
7 be hydraulic telescopic rod, and telescopic rod end is disposed with rubber pad, and rubber pad can be improved effectively between telescopic rod and dike
Frictional force avoids sliding from generating；
It, can be to prevent using support plate as shown in figure 4, first support 1 and 2 upper surface of second support are arranged with support plate 8
Only rock is fallen in tunnel excavating process, while first support 1 and 2 upper surface edge-perpendicular of second support are disposed with protective net
15, and then construction convenience is improved while improving construction personnel's safety, and offer in the middle part of support plate 8 and unload cinder notch 9,
Unload 9 bottom end of cinder notch and be disposed with and unload slag chute 10, unload and be disposed with baffle 14 above cinder notch 9, and the connection of baffle hinge in support plate 8,
In tunnel excavation, baffle 14 is closed, and when slagging tap operation, baffle 14 is opened, and transiting vehicle, which docks at, unloads 10 bottom of slag chute, in turn
Substantially increase slag discharge efficiency, effectively very fast construction speed shortens the construction period；
The first reinforcing rib 11 is arranged between parallel first crossbar 3 between parallel vertical bar 4, utilizes first
Reinforcing rib 11 improves first to be parallel to each other as the connecting elements between two first crossbars 3 between two vertical bars 4
The parallel angle stability of cross bar and vertical bar is filled according to different places by the first reinforcing rib 11, first crossbar 3 and vertical bar 4
Rack with different length is disposed with the second reinforcing rib 12, utilizes second between the first crossbar 3 being connected and vertical bar 4
Reinforcing rib 12 improves the vertical angle stability between first crossbar 3 and vertical bar 4, between parallel second crossbar 5 with it is equal
It is arranged with third reinforcing rib 13 between capable brace 6, using third reinforcing rib 13 as the second crossbar 5 being parallel to each other and tiltedly
Parallel angle stability between bar 6；
4 lateral wall of vertical bar is disposed with ladder 16 simultaneously, and ladder facilitates construction personnel smoothly to climb up rack top surface, 4 bottom of vertical bar
Portion is disposed with idler wheel 17, is disposed with pull line in the middle part of vertical bar 4, sliding rail is arranged in existing tunnel, drawn using pull line
So that idler wheel 17 can drive rack to be moved, and then improve the flexibility of rack, but after telescopic rod is mutually fixed with arch wall, produce
The flat power of unboiled water so that rack cannot be moved forward and backward, and then improves the safety of construction.
Embodiment described above is only that preferred embodiments of the present invention will be described, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (7)
1. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ, it is characterised in that: including first
In the second support (2) of first support upper surface side, the first support (1) includes multiple for frame (1) and horizontal connection
One cross bar (3) and multiple vertical bars (4) for being connected to first crossbar end bottom surface, the second support (2) include multiple for connecting
The second crossbar (5) for connecing first support (1) and multiple second crossbar middle parts that are connected to are for the brace with tunnel arch wall support
(6), the first crossbar and second crossbar are disposed with telescopic rod (7) close to tunnel arch wall one end, the first support (1) and
Second support (2) upper surface is arranged with support plate (8), and is offered and unloaded cinder notch (9) in the middle part of support plate (8), described to unload cinder notch
(9) bottom end, which is disposed with, unloads slag chute (10).
2. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
It is characterized in that: being arranged with the first reinforcing rib (11) between parallel vertical bar (4) between parallel first crossbar (3),
It is disposed between the first crossbar (3) being connected and vertical bar (4) the second reinforcing rib (12), parallel second crossbar (5)
Between third reinforcing rib (13) are arranged between parallel brace (6).
3. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
Be characterized in that: described unload is disposed with baffle (14) above cinder notch (9), and on the connection of baffle hinge and support plate (8).
4. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
Be characterized in that: the telescopic rod (7) is hydraulic telescopic rod, and telescopic rod end is disposed with rubber pad.
5. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
It is characterized in that: structural member and first support (1) and second in structural member and second support (2) on the first support (1)
Frame (2) is connected by high-strength bolt (18), and the tilt angle of brace (6) passes through high-intensitive spiral shell in second support (2)
Bolt is adjusted.
6. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
Be characterized in that: the first support (1) and second support (2) upper surface edge-perpendicular are disposed with protective net (15).
7. a kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ according to claim 1,
Be characterized in that: vertical bar (4) lateral wall is disposed with ladder (16), and vertical bar (4) bottom is disposed with idler wheel (17), described perpendicular
Pull line is disposed in the middle part of bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568762.6A CN109441476B (en) | 2018-12-21 | 2018-12-21 | Existing tunnel safety protection multifunctional rack for in-situ extension tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811568762.6A CN109441476B (en) | 2018-12-21 | 2018-12-21 | Existing tunnel safety protection multifunctional rack for in-situ extension tunnel construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441476A true CN109441476A (en) | 2019-03-08 |
| CN109441476B CN109441476B (en) | 2024-04-26 |
Family
ID=65559734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811568762.6A Active CN109441476B (en) | 2018-12-21 | 2018-12-21 | Existing tunnel safety protection multifunctional rack for in-situ extension tunnel construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441476B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044364A (en) * | 2002-05-20 | 2004-02-12 | Ando Corp | Continuous construction method for tunnel block |
| CN202039857U (en) * | 2011-03-16 | 2011-11-16 | 中铁隧道集团四处有限公司 | Lifting type tunnel excavation support operation rack |
| CN105822311A (en) * | 2016-05-17 | 2016-08-03 | 中铁十五局集团有限公司 | In-situ extension construction structure and method for extra-large-section tunnel with opening formed inside to enlarge working face |
| CN206448820U (en) * | 2017-01-06 | 2017-08-29 | 董景印 | A kind of tunnel construction trolley |
| CN209385140U (en) * | 2018-12-21 | 2019-09-13 | 中铁四局集团有限公司 | A kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ |
-
2018
- 2018-12-21 CN CN201811568762.6A patent/CN109441476B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004044364A (en) * | 2002-05-20 | 2004-02-12 | Ando Corp | Continuous construction method for tunnel block |
| CN202039857U (en) * | 2011-03-16 | 2011-11-16 | 中铁隧道集团四处有限公司 | Lifting type tunnel excavation support operation rack |
| CN105822311A (en) * | 2016-05-17 | 2016-08-03 | 中铁十五局集团有限公司 | In-situ extension construction structure and method for extra-large-section tunnel with opening formed inside to enlarge working face |
| CN206448820U (en) * | 2017-01-06 | 2017-08-29 | 董景印 | A kind of tunnel construction trolley |
| CN209385140U (en) * | 2018-12-21 | 2019-09-13 | 中铁四局集团有限公司 | A kind of existing tunnel security protection Multifunctional bench of enlarging constructing tunnel in situ |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109441476B (en) | 2024-04-26 |
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