CN205532611U - Shield tunnel's construction equipment - Google Patents
Shield tunnel's construction equipment Download PDFInfo
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- CN205532611U CN205532611U CN201620125495.5U CN201620125495U CN205532611U CN 205532611 U CN205532611 U CN 205532611U CN 201620125495 U CN201620125495 U CN 201620125495U CN 205532611 U CN205532611 U CN 205532611U
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- steel bushing
- shield
- concrete pipe
- steel sleeve
- shield shell
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Abstract
The utility model discloses a shield tunnel's construction equipment, construct the system including connecting crown plate, steel sleeve, setting concrete pipe and the shield in steel sleeve, it is pre -buried on foundation pit retaining structure to connect the crown plate, shield structure system includes the shield shell, the shield shell sets up steel sleeve with between the concrete pipe, steel sleeve's terminal surface with it connects fixedly to connect the crown plate, steel sleeve with between the shield shell and the shield shell with it has the gram mud effect that prevents soil erosion and water loss all to fill between the concrete pipe, steel sleeve is last to be provided with a plurality of being used for and to pour into into the injected hole that gram mud was imitated. The utility model discloses can effectively seal secret soil erosion and water loss, avoid arousing soil body disturbance owing to soil erosion and water loss to cause the shield and construct the accident of starting, construction convenience moreover, safe and reliable.
Description
Technical field
This utility model belongs to technical field of tunnel construction, is specifically related to the constructing device of a kind of shield tunnel.
Background technology
Application shield machine tunneling is a kind of method of Tunnel Design and construction, and the method is increasingly extensive in China's application.Shield
Machine, typically from the foundation ditch in of open cut, enters stratum excavation driving and applies tunnel lining structure simultaneously, finally arriving tunnel another
The open-cut foundation ditch of one end, forms through tunnel.Shield machine enters the soil body at open-cut foundation ditch internal cutting foundation pit enclosure structure and (calls in the following text
" shield launching ") during, stratum exposes and disturbed, and subsoil water starts to run off, and easily causes cave in accident, and related
Causing underground pipe network and surrounding building to damage, causing engineering accident, existing treatment measures is by shield launching end certain limit
Stratum with cement grout reinforce improvement, improve stratum stability, stop subsoil water run off.
Existing stratum consolidation method is affected relatively big by underground pipe network and formation properties, and underground pipe network affects equipment construction, particularly
When there is existing tunnel underground, stratum consolidation possibly cannot be implemented, and moves and changes pipe network and affect the duration and cost is the highest even can not realize；
Groundwater Flow meeting dilution water mud, thus affect consolidation effect, and also after cement mortar improvement, the stability on stratum is difficult to differentiate,
Some stratum is more closely knit before without disturbance, and cement mortar consolidation effect is inconspicuous, but the most easily disintegrate of the soil body of disturbance, this
Time be difficult to the conservation of soil and water timely and effectively, this is also the main cause causing domestic many shield launching accidents.
Utility model content
When this utility model is in order to solve above-mentioned shield machine tunneling, easily causes soil erosion, disturbed soil, cause shield
Originate the technical problem of accident, it is provided that a kind of simple and reliable for structure, the convenient constructing device operating reliable shield tunnel.
In order to solve the problems referred to above, this utility model is achieved by techniques below scheme:
The constructing device of shield tunnel described in the utility model, including connecting ring flat-plate, steel bushing, the coagulation that is arranged in steel bushing
Soil section of jurisdiction and shield system, described connection ring flat-plate is embedded on foundation pit enclosure structure；Described shield system includes shield shell；Institute
State shield shell to be arranged between described steel bushing and described concrete pipe sheet；
The end face of described steel bushing connects fixing with the described ring flat-plate that is connected；
All it is filled with between described steel bushing and described shield shell and between described shield shell and described concrete pipe sheet and prevents water and soil stream
Gram mud effect lost；
Some injected holes for injecting described gram of mud effect it are provided with on described steel bushing.
Further, described steel bushing includes complementing each other to form columned upper steel bushing and lower steel bushing；Described steel bushing
Bottom is provided with bracing frame；
The protruding support frame as described above having for supporting steel sleeve in bottom of described lower steel bushing, described upper steel bushing and lower steel bushing
Cylinder is bolted fixing.
Further, the end face of described steel bushing is welded and fixed with the described ring flat-plate that is connected.
Further, described shield system also includes the jack promoting shield system to tunnel forward, and the end of described steel bushing sets
It is equipped with the reaction frame that counter-force is provided for described jack.
The construction method of a kind of shield tunnel, comprises the following steps:
S1, when construction foundation pit building enclosure, pre-buried connection ring flat-plate；
S2, connecting steel bushing on ring flat-plate connecting, the end face of steel bushing is connected the fixing connection of ring flat-plate, on described steel bushing with described
It is provided with some injected holes；
S3, shield system being arranged in steel bushing, described shield system includes shield shell；
S4, in shield shell, it is in the position assembly concrete pipe sheet at rear portion；
S5, by the injection orifice of steel bushing, note toward the space between steel bushing and shield shell and between steel bushing and concrete pipe sheet
Enter gram mud effect prevented erosion.
Further, after S5, also include
S6, jack promote shield system to tunnel forward, and the end at steel bushing arranges the reaction frame providing counter-force to jack；
S7, advance along with shield system, increase concrete pipe sheet on the basis of concrete pipe sheet assembled in S4；
S8, utilize the slurry casting machine of shield system, inject a gram mud effect toward the space between concrete pipe sheet and the tunnel wall soil body.
Further, described steel bushing includes complementing each other to form columned upper steel bushing and lower steel bushing；
The bottom of described lower steel bushing is provided with bracing frame, described upper steel bushing and lower steel bushing and is bolted fixing.
Further, in described S2, the end face of steel bushing passes through to be welded and fixed with the described ring flat-plate that is connected.
Compared with prior art, the beneficial effects of the utility model are:
This utility model is by connection ring flat-plate pre-buried on even foundation pit enclosure structure, for the end face of stationary steel bushing cylinder, plays and props up
Hold the effect of steel bushing, and by the injected hole of steel bushing, between steel bushing and shield shell and steel bushing and concrete pipe sheet
Space inject gram mud effect, a gram mud effect is the paste that a kind of viscosity is the highest, is difficult to be diluted, and consolidation is fast, and intensity is low, energy
Effectively closely descend soil erosion, it is to avoid cause soil disturbance due to soil erosion, thus cause shield launching accident, and
And easy construction, safe and reliable.
In shield system tunneling process, the most assembled concrete pipe sheet, utilize the slurry casting machine of shield system, in section of jurisdiction and tunnel
Inject a gram mud effect between the soil body, effectively control stratum deformation so that tunnel safety and reliability.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail, wherein:
Fig. 1 is the structural representation of shield tunnel construction device described in the utility model；
Fig. 2 is the structural representation of the lower steel bushing of shield tunnel construction device described in the utility model；
Fig. 3 be shield tunnel construction device described in the utility model tunneling process in supplement the schematic diagram of gram mud effect.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that described herein be preferable to carry out
Example is merely to illustrate and explains this utility model, is not used to limit this utility model.
As shown in FIG. 1 to 3, shield tunnel construction device described in the utility model, including connecting ring flat-plate 2, steel bushing 3, setting
Putting the concrete pipe sheet 5 in steel bushing 3 and shield system 4, described connection ring flat-plate 2 is embedded on foundation pit enclosure structure 1；
Described shield is 4 to include shield shell 41, jack 42 and slurry casting machine；Described shield system 4 is arranged in described steel bushing 3,
Described concrete pipe sheet 5 is arranged on described shield shell 5 tail position；The end face of described steel bushing 3 connects with the described ring flat-plate 2 that is connected
Fixing；Connection ring flat-plate 2 in the present embodiment passes through to be welded and fixed with the end face of described steel bushing 3, but this utility model does not limits to
It is welded to connect fixing in employing, it is also possible to be by the connected mode such as bolt, rivet, steel bushing 3 is connected with being connected ring flat-plate 2
Fixing.
Described steel bushing 3 includes complementing each other to form columned upper steel bushing and lower steel bushing 31；Described lower steel bushing 31
Bottom is provided with bracing frame 34；Being provided with some bolts hole 33 on the joint face of described upper steel bushing and lower steel bushing, they lead to
Cross bolt and connect fixing, or adjacent steel bushing 3 is fixing also by bolt hole 33 connection of bolt-through end face.Described steel bushing
Some injected holes 32 it are additionally provided with on 3.
Between described steel bushing 3 and described shield shell 41, and all it is filled with between described shield shell 41 and described concrete pipe sheet 5
Gram mud effect 6 prevented erosion.Inject gram mud toward the space in steel bushing 3 from the outside by the injected hole 32 of steel bushing 3 to imitate
6.Gram mud effect 6 is the paste that a kind of viscosity is the highest, is difficult to be diluted, and consolidation is fast and intensity is low, when shield machine tunnels soil body mistake
Cheng Zhong, steel bushing and a gram mud effect effectively closely descend soil erosion.
Also include the reaction frame 7 for providing counter-force to the jack 42 promoting shield system 4.Jack 42 promotes forward shield
Construction system 4 moves, and when the distance that shield system 4 is advanced has exceeded the stroke of jack 42, needs to build into concrete pipe sheet 5,
Jack 42 is provided that, and active force promotes shield system to advance.The infusion appliance of shield system 4 is to concrete pipe sheet 5 and tunnel
A gram mud effect, the Strengthening Tunnel top layer soil body effectively are injected in gap 61 between the soil body.
Shield tunnel construction method described in the utility model, comprises the following steps:
S1, when construction foundation pit building enclosure 1, pre-buried connection ring flat-plate 2.
S2, connecting steel bushing 3 on ring flat-plate 2 connecting, the end face of steel bushing 3 passes through, with the described ring flat-plate 2 that is connected, the company of being welded and fixed
Connect, described steel bushing 3 is provided with some injected holes 32.
S3, shield system 4 being arranged in steel bushing, described shield system includes shield shell；
S4, at the tail end assembly concrete pipe sheet of shield shell；
S5, by the injection orifice 32 of steel bushing 3, toward between steel bushing 3 and shield shell 41 and at steel bushing 3 and concrete pipe sheet 5
Between space inject gram mud effect prevented erosion.
S6, jack promote shield system to tunnel forward, and the end at steel bushing arranges the reaction frame providing counter-force to jack；
S7, advance along with shield system, increase concrete pipe sheet 5 on the basis of concrete pipe sheet assembled in S4；
S8, utilize the slurry casting machine of shield system 4, inject a gram mud effect 6 toward space 61 between concrete pipe sheet and the tunnel wall soil body.
Other structure of shield tunnel construction device described in the present embodiment sees prior art.
The above, be only preferred embodiment of the present utility model, and this utility model is not made any pro forma restriction,
Therefore it is every without departing from technical solutions of the utility model content, according to appointing that above example is made by technical spirit of the present utility model
What amendment, equivalent variations and modification, all still fall within the range of technical solutions of the utility model.
Claims (4)
1. the constructing device of a shield tunnel, it is characterised in that: include connecting ring flat-plate, steel bushing, concrete pipe sheet, shield
System, described connection ring flat-plate is embedded on foundation pit enclosure structure；Described shield system includes shield shell；Described dark soil section of jurisdiction is arranged
In described steel bushing, described shield shell is arranged between described steel bushing and described concrete pipe sheet；
The end face of described steel bushing connects fixing with the described ring flat-plate that is connected；
All it is filled with between described steel bushing and described shield shell and between described shield shell and described concrete pipe sheet and prevents water and soil stream
Gram mud effect lost；
Some injected holes for injecting described gram of mud effect it are provided with on described steel bushing.
The most according to claim 1, the constructing device of shield tunnel, described steel bushing includes complementing each other to form on columned
Steel bushing and lower steel bushing；The bottom of described steel bushing is provided with bracing frame；
The protruding support frame as described above having for supporting steel sleeve in bottom of described lower steel bushing, described upper steel bushing and lower steel bushing
Cylinder is bolted fixing.
The most according to claim 1, the constructing device of shield tunnel, the end face of described steel bushing is connected ring flat-plate welding admittedly with described
Fixed.
4., according to the constructing device of shield tunnel described in any one of claims 1 to 3, described shield system also includes promoting shield
The jack that system is tunneled forward, the end of described steel bushing arranges promising described jack and provides the reaction frame of counter-force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125495.5U CN205532611U (en) | 2016-02-17 | 2016-02-17 | Shield tunnel's construction equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620125495.5U CN205532611U (en) | 2016-02-17 | 2016-02-17 | Shield tunnel's construction equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205532611U true CN205532611U (en) | 2016-08-31 |
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ID=56778567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620125495.5U Active CN205532611U (en) | 2016-02-17 | 2016-02-17 | Shield tunnel's construction equipment |
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| CN (1) | CN205532611U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715277A (en) * | 2016-02-17 | 2016-06-29 | 广州地铁设计研究院有限公司 | Construction device and method for shield tunnel |
-
2016
- 2016-02-17 CN CN201620125495.5U patent/CN205532611U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715277A (en) * | 2016-02-17 | 2016-06-29 | 广州地铁设计研究院有限公司 | Construction device and method for shield tunnel |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province Patentee after: Guangzhou Metro Design and Research Institute Co., Ltd. Address before: 510010 No. 204 Huanshi West Road, Guangzhou City, Guangdong Province Patentee before: Guangzhou Metro Design & Research Institute Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |