CN206888997U - Tunnel plain concrete lining construction auxiliary equipment - Google Patents
Tunnel plain concrete lining construction auxiliary equipment Download PDFInfo
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- CN206888997U CN206888997U CN201720751061.0U CN201720751061U CN206888997U CN 206888997 U CN206888997 U CN 206888997U CN 201720751061 U CN201720751061 U CN 201720751061U CN 206888997 U CN206888997 U CN 206888997U
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- reinforced mesh
- stand
- mesh
- plain concrete
- reinforced
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Abstract
The utility model discloses a kind of tunnel plain concrete lining cutting auxiliary equipment, including the reinforced mesh stand of spacer bar mesh sheet, the reinforced mesh fixture of lateral confinement reinforced mesh and reinforced mesh cushion block；The reinforced mesh stand is arranged on formwork jumbo front end, and bottom and the trolley traveling track of the reinforced mesh stand match；The pre-buried longitudinal reinforcement is embedded in the openend for having poured secondary lining along longitudinal direction, and the pre-buried longitudinal reinforcement and reinforced mesh are longitudinally connected；The reinforced mesh fixture is contractably arranged on formwork jumbo；The reinforced mesh cushion block is disposed between reinforced mesh and formwork jumbo.Plain concrete lining cutting auxiliary equipment in tunnel of the present utility model, reinforced mesh is routed to the formwork jumbo arch of narrow space by reinforced mesh stand, avoids the setting that ring fixes steelframe, amount of reinforcement in lining cutting, cost saving can be greatly decreased.
Description
Technical field
Technical field of tunnel construction is the utility model is related to, is aided in particular to a kind of tunnel plain concrete lining construction
Facility.
Background technology
With the great development of the traffic engineering such as China railways, highway, the substantial increase of newly built tunnels quantity.According to structure stress
Need, tunnel can use the plain concrete lining cutting for being unworthy of reinforcing bar when surrounding formations stability is preferable.Due to mostly cloudy in tunnel
Cold humidity, plus the effect of contraction of concrete in itself, tunnel-liner is very easy to crack, and especially abutment wall position is easier
Occur, crackle gradually develops diffusion, eventually splits structural thickness, causes water leakage defect and be further exacerbated by ftractureing, finally
Influence safety.
Plain concrete lining cutting location tunnel is after excavation, to avoid the influence of operation phase underground water seepage, typically in tunnel
Waterproof layer 3 is set in structure, formed " preliminary bracing 2 "+" waterproof layer 3 "+" composite construction of plain concrete secondary lining 4 ", such as
Shown in Fig. 1.There is arch plain concrete cracking, chip off-falling phenomenon in above-mentioned composite construction, influence railway, highway in use
Operation security, set reinforced mesh to reduce the risk of concrete chip off-falling in arch.
Fig. 2 is please referred to, due to being provided with waterproof layer 3, bar-mat reinforcement between tunnel plain concrete lining cutting 4 and preliminary bracing 2
The problem of destroying waterproof layer, construction is cumbersome when piece 6 is directly anchored on country rock 1 be present.The existing installation method of reinforced mesh 6 is
In the clear width of waterproof layer 3, (three limbs or four limbs) steelframe 5, then the fixed steel bars mesh sheet 6 on steelframe 5 are set.Although existing peace
Assembling structure and installation method can reach the purpose of fixed steel bars mesh sheet 6, but still suffer from problems with：
(1) it is fixed steel bars mesh sheet 6, steelframe 5 needs to land, that is, is not required to set the part of reinforced mesh 6, also needs to set steelframe
5；
(2) rigidity of reinforced mesh 6 is smaller, need to set steelframe 5 by spacing L.
Above construction method causes plain concrete lining cutting to be spaced to be arranged circumferentially steelframe and form similar reinforced concrete structure,
Substantial amounts of steel should be expended, also against the design original intention of plain concrete lining cutting.
The content of the invention
The purpose of this utility model is, there is provided a kind of tunnel plain concrete lining construction auxiliary equipment, is ensureing to apply
Work can also reduce reinforcing bar usage amount while convenient.
To achieve the above object, the tunnel plain concrete lining cutting designed by the utility model includes supporting steel with auxiliary equipment
The reinforced mesh stand of muscle mesh sheet, the pre-buried longitudinal reinforcement of longitudinally connected reinforced mesh, the bar-mat reinforcement of lateral confinement reinforced mesh
Piece fixture and reinforced mesh cushion block；The reinforced mesh stand is arranged on formwork jumbo front end, the reinforced mesh stand
Bottom matches with trolley traveling track；The pre-buried longitudinal reinforcement is embedded in the openend for having poured secondary lining along longitudinal direction,
The pre-buried longitudinal reinforcement and reinforced mesh are longitudinally connected；The reinforced mesh fixture is contractably arranged on formwork jumbo
On；The reinforced mesh cushion block is disposed between reinforced mesh and formwork jumbo.
Preferably, the foreign steamer of the lateral cross section gabarit of the reinforced mesh stand and the lateral cross section of formwork jumbo
Exterior feature matches, and the reinforced mesh stand is provided with the reinforced mesh stand connection shaped steel of some genesis analysis, the bar-mat reinforcement
The longitudinally connected reinforced mesh stand front-end and back-end of strip platform connection shaped steel.
Preferably, the reinforced mesh cushion block be disposed on reinforcing bar intersection on reinforced mesh and with institute
State reinforced mesh to be connected, the height of the reinforced mesh cushion block is protected with reinforced mesh in plain concrete secondary lining to be poured
The thickness of sheath matches.
The beneficial effects of the utility model are：Plain concrete lining construction auxiliary equipment in tunnel of the present utility model, profit
The characteristic moved with formwork jumbo along lining cutting walking rails, by can be along reinforced mesh stand that trolley traveling track moves longitudinal direction
Reinforced mesh is routed to the formwork jumbo arch of narrow space, it is simple and practical compared to existing reinforced mesh installation method, keep away
The setting that ring fixes steelframe is exempted from, amount of reinforcement in lining cutting, cost saving can be greatly decreased.
Brief description of the drawings
Fig. 1 is the longitudinal cross-section structural representation after existing tunnel plain concrete lining cutting reinforced mesh installation.
Fig. 2 is the lateral cross section structural representation after the tunnel plain concrete lining cutting reinforced mesh installation in Fig. 1.
Fig. 3 is the tunnel plain concrete lining construction auxiliary equipment using the utility model preferred embodiment by bar-mat reinforcement
Longitudinal cross-section structural representation after piece installation.
Fig. 4 is the mplifying structure schematic diagram of part A in Fig. 3.
Fig. 5 is using bar-mat reinforcement in the tunnel plain concrete lining construction auxiliary equipment of the utility model preferred embodiment
Lateral cross section structural representation after piece installation.
Fig. 6 is the tunnel plain concrete lining construction auxiliary equipment of the utility model preferred embodiment by reinforced mesh pad
Lateral cross section structural representation after block installation.
Each part numbers are as follows in figure：Country rock 1, preliminary bracing 2, waterproof layer 3, plain concrete secondary lining 4, steelframe 5, steel
Muscle mesh sheet 6, reinforced mesh stand 7, formwork jumbo 8, trolley traveling track 9, reinforced mesh stand connect shaped steel 10, have poured two
Secondary lining cutting 11, plain concrete secondary lining 12 to be poured, pre-buried longitudinal reinforcement 13, reinforced mesh fixture 14, reinforced mesh pad
Block 15.
Embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Formwork jumbo is a kind of to improve tunnel-liner surface smoothness and lining cutting speed, and reduces labor intensity and set
Meter, the special equipment of manufacture.Formwork jumbo is to support large-scale steel structure template system with combined steel structure door frame, and motor drives
Dynamic walking mechanism drives formwork jumbo to be walked along tunnel, and it has, and cost is low, and structure is reliable, easy to operate, lining cutting speed is fast, tunnel
The features such as road forming surface is good, it is widely used in the constructing tunnels such as highway, railway, water power, city underground.Template is used in tunnel
Chassis can not only avoid construction interference, improve efficiency of construction, it is often more important that substantially increase the lining construction matter in tunnel
Amount, while also improve the mechanization degree of constructing tunnel.
For the reinforced mesh of tunnel plain concrete lining cutting arch, to use rational method installation to reach operation letter
Single, construction rapidly, reduces amount of reinforcement, the purpose of cost saving, based on the operation principle of above-mentioned formwork jumbo, this practicality
A kind of new tunnel plain concrete lining construction auxiliary equipment of offer.Plain concrete lining construction in tunnel of the present utility model is used
Auxiliary equipment, reinforced mesh is first first laid on to the front end of reinforced mesh stand using reinforced mesh stand, and with bar-mat reinforcement
The final reinforced mesh of translation of strip platform is arranged into the top of formwork jumbo.Below with reference to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, to this
The tunnel plain concrete lining construction of utility model is described in detail with auxiliary equipment and method.
Fig. 3, Fig. 4, Fig. 5 and Fig. 6 are referred to, tunnel plain concrete lining construction includes reinforced mesh stand with auxiliary equipment
7th, reinforced mesh stand connection shaped steel 10, reinforced mesh fixture 14 and reinforced mesh cushion block 15.
Reinforced mesh stand 7 is arranged on the front end of formwork jumbo 8, the lateral cross section gabarit and template of reinforced mesh stand 7
The gabarit of the lateral cross section of chassis 8 is identical, and bottom and the trolley traveling track 9 of reinforced mesh stand 7 match, reinforced mesh platform
Frame 7 can move along trolley traveling track 9.Preferably to accept reinforced mesh 6, reinforced mesh stand 7 is provided with some longitudinal directions point
Cloth reinforced mesh stand connection shaped steel 10, reinforced mesh stand connection the longitudinally connected front end of reinforced mesh stand 7 of shaped steel 10 and
Rear end, reinforced mesh 6 to be installed are placed on longitudinally moveable reinforced mesh stand 7.
Pre-buried be arranged on of pre-buried longitudinal reinforcement 13 has been poured in secondary lining 11, pre-buried longitudinal reinforcement 13 and steel to be installed
Muscle mesh sheet 6 it is longitudinally connected.By reinforced mesh stand 7 and pre-buried longitudinal reinforcement 13, reinforced mesh 6 is by vertical supporting, longitudinal direction
Constraint.
Reinforced mesh cushion block 15 is disposed on reinforced mesh 6 and is connected with reinforced mesh 6.More specifically,
Reinforced mesh cushion block 15, reinforced mesh pad are arranged at intervals between reinforcing bar crosspoint and reinforced mesh stand 7 on reinforced mesh 6
Block 15 ensures the interval between reinforced mesh stand 7 and reinforced mesh 6, and the height of reinforced mesh cushion block 15 is with waiting that pouring element mixes
The protective layer thickness for coagulating reinforced mesh 6 in native secondary lining 12 matches, so as to ensure the protective layer thickness of reinforced mesh 6.
When formwork jumbo 8 and reinforced mesh stand 7 move forward along trolley traveling track 9 along longitudinal direction is common, bar-mat reinforcement
Piece 6, therefore can be gradually in reinforced mesh platform due to being connected by embedded bar 13 with having poured secondary lining 11 by longitudinal restraint
Slided on frame 7, be finally routed to the top of formwork jumbo 8.
Reinforced mesh fixture 14 is set on formwork jumbo 8, is constrained reinforced mesh 6 with lateral confinement, is prevented reinforced mesh 6
Transverse shifting.Reinforced mesh fixture 14 is collapsible part, and moving to formwork jumbo 8 in reinforced mesh 6 goes forward in contraction-like
State, stretched out after reinforced mesh 6 moves on formwork jumbo 8 and adjusts good position；Poured in plain concrete secondary lining 12 to be poured
After the completion of, treat its concrete setting before, reinforced mesh fixture 14 is retracted on formwork jumbo 8.So far, reinforced mesh 6 exists
Laterally, longitudinal direction and vertical direction suffer restraints.
Above-mentioned tunnel plain concrete lining construction is to be installed using the limitation of the pre-buried longitudinal direction of longitudinal reinforcement 13 with auxiliary equipment
Reinforced mesh 6, with the spacer bar mesh sheet 6 from below of reinforced mesh stand 7, reinforced mesh 6 is ensured using reinforced mesh cushion block 15
Protective layer thickness, recycle formwork jumbo 8 and from reinforced mesh stand 7 it is common mobile by reinforced mesh 6 from reinforced mesh
Turn to be moved on formwork jumbo 8 on stand 7, reinforced mesh fixture is utilized after reinforced mesh 6 is completely disposed on formwork jumbo 8
It can start to pour after 14 lateral confinement reinforced mesh 6.
By above description, applied using plain concrete lining construction in tunnel of the present utility model with auxiliary equipment
The method of work, comprises the following steps：
(1) in the pre-buried longitudinal reinforcement 13 in openend for having poured secondary lining 11, as follow-up reinforced mesh 6 to be installed
Longitudinal restraint part.
(2) reinforced mesh stand 7, the lateral cross section gabarit and template of reinforced mesh stand 7 are set in the front end of formwork jumbo 8
The gabarit of the lateral cross section of chassis 8 is identical, and bottom and the trolley traveling track 9 of reinforced mesh stand 7 match, reinforced mesh platform
Frame 7 can move along trolley traveling track 9.Reinforced mesh stand 7 is provided with the reinforced mesh stand connecting-type of some genesis analysis
Steel 10, the longitudinally connected front-end and back-end of reinforced mesh stand 7 of reinforced mesh stand connection shaped steel 10, reinforced mesh 6 to be installed
It is supported on reinforced mesh stand 7.
(3) after reinforced mesh stand 7 in place (wait pouring the lower section at plain concrete secondary lining 12) after, in reinforced mesh
Reinforced mesh 6 is laid on stand 7, and the pre-buried longitudinal reinforcement 13 with having poured in secondary lining 11 welds, longitudinal restraint reinforcing bar
Mesh sheet 6.If subsequent cycle secondary lining needs to set reinforced mesh, reserved using the reinforced mesh of this circulation pre-buried vertical
Reinforced mesh longitudinal restraint part to reinforcing bar as subsequent cycle.
(4) reinforced mesh cushion block is arranged at intervals between the reinforcing bar crosspoint on reinforced mesh 6 and reinforced mesh stand 7
15, reinforced mesh cushion block 15 is connected with reinforced mesh 6, when the height of reinforced mesh cushion block 15 ensures later stage casting concrete
The protective layer thickness of reinforced mesh 6.
(5) after reinforced mesh 6 is laid, while mobile reinforced mesh stand 7 and formwork jumbo 8, reinforced mesh 6 are gradual
Slide on formwork jumbo 8 from reinforced mesh stand 7, be finally routed to completely on formwork jumbo 8.
(6) contractile reinforced mesh fixture 14 is set on the top of formwork jumbo 8, it is horizontal by reinforced mesh fixture 14
To constraint reinforced mesh 6.
(7) after reinforced mesh 6 is laid and is fixed on formwork jumbo 8, you can pour to form plain concrete two to be poured
Secondary lining cutting 12, the pre-buried longitudinal reinforcement needed for pre-buried subsequent cycle, and shrinkage bar mesh sheet fixture 14.
(8) after the concrete for pouring plain concrete secondary lining 12 meets intensity requirement, you can form removal moving die plate platform
Car 8 or the reinforced mesh installation for carrying out subsequent cycle (section).
The characteristics of plain concrete lining construction in tunnel of the present utility model is constructed with auxiliary equipment integrating tunnel, utilizes template
The characteristic that chassis moves along lining cutting walking rails, by can be along reinforced mesh stand that trolley traveling track moves longitudinal direction by reinforcing bar
Mesh sheet is routed to the formwork jumbo arch of narrow space, simple and practical compared to existing reinforced mesh installation method, avoids ring
Setting to fixed steelframe, can be greatly decreased amount of reinforcement in lining cutting, cost saving.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore it can not be interpreted as the limitation to the utility model patent scope.It should be pointed out that for the common of this area
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (3)
- A kind of 1. tunnel plain concrete lining construction auxiliary equipment, it is characterised in that：Include the reinforcing bar of spacer bar mesh sheet (6) Mesh sheet stand (7), the pre-buried longitudinal reinforcement (13) of longitudinally connected reinforced mesh (6), the bar-mat reinforcement of lateral confinement reinforced mesh (6) Piece fixture (14) and reinforced mesh cushion block (15)；The reinforced mesh stand (7) is arranged on formwork jumbo (8) front end, described The bottom of reinforced mesh stand (7) matches with trolley traveling track (9)；The pre-buried longitudinal reinforcement (13) is embedded in along longitudinal direction The openend of secondary lining (11) is poured, the pre-buried longitudinal reinforcement (13) and reinforced mesh (6) are longitudinally connected；The reinforcing bar Mesh sheet fixture (14) is contractably arranged on formwork jumbo (8)；The reinforced mesh cushion block (15) is disposed on reinforcing bar Between mesh sheet (6) and formwork jumbo (8).
- 2. plain concrete lining construction auxiliary equipment in tunnel according to claim 1, it is characterised in that：The bar-mat reinforcement The outline of the lateral cross section gabarit of strip platform (7) and the lateral cross section of formwork jumbo (8) matches, the reinforced mesh stand (7) the reinforced mesh stand connection shaped steel (10) provided with some genesis analysis, the reinforced mesh stand connection shaped steel (10) Longitudinally connected reinforced mesh stand (7) front-end and back-end.
- 3. plain concrete lining construction auxiliary equipment in tunnel according to claim 1, it is characterised in that：The bar-mat reinforcement Reinforcing bar intersection that piece cushion block (15) is disposed on reinforced mesh (6) is simultaneously connected with the reinforced mesh (6), institute State the height and the thickness of reinforced mesh (6) protective layer in plain concrete secondary lining (12) to be poured of reinforced mesh cushion block (15) Match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751061.0U CN206888997U (en) | 2017-06-23 | 2017-06-23 | Tunnel plain concrete lining construction auxiliary equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720751061.0U CN206888997U (en) | 2017-06-23 | 2017-06-23 | Tunnel plain concrete lining construction auxiliary equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206888997U true CN206888997U (en) | 2018-01-16 |
Family
ID=61317277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720751061.0U Active CN206888997U (en) | 2017-06-23 | 2017-06-23 | Tunnel plain concrete lining construction auxiliary equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN206888997U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100648A (en) * | 2017-06-23 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | Tunnel plain concrete lining construction auxiliary equipment and method |
| CN111828066A (en) * | 2020-07-13 | 2020-10-27 | 侯小柱 | Anchor net cable-profile steel support coupling supporting structure |
-
2017
- 2017-06-23 CN CN201720751061.0U patent/CN206888997U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100648A (en) * | 2017-06-23 | 2017-08-29 | 中铁第四勘察设计院集团有限公司 | Tunnel plain concrete lining construction auxiliary equipment and method |
| CN107100648B (en) * | 2017-06-23 | 2024-03-12 | 中铁第四勘察设计院集团有限公司 | Auxiliary facility and method for tunnel plain concrete lining construction |
| CN111828066A (en) * | 2020-07-13 | 2020-10-27 | 侯小柱 | Anchor net cable-profile steel support coupling supporting structure |
| CN111828066B (en) * | 2020-07-13 | 2022-04-26 | 山东烟台鑫泰黄金矿业有限责任公司 | Anchor net cable-profile steel support coupling supporting structure |
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