CN208220805U - A kind of push-bench - Google Patents
A kind of push-bench Download PDFInfo
- Publication number
- CN208220805U CN208220805U CN201820851816.9U CN201820851816U CN208220805U CN 208220805 U CN208220805 U CN 208220805U CN 201820851816 U CN201820851816 U CN 201820851816U CN 208220805 U CN208220805 U CN 208220805U
- Authority
- CN
- China
- Prior art keywords
- toolbox
- sub
- push
- butterfly
- inner casing
- 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.)
- Withdrawn - After Issue
Links
- 230000005641 tunneling Effects 0.000 claims abstract description 9
- 238000005192 partition Methods 0.000 claims description 18
- 239000002893 slag Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 19
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 241000255777 Lepidoptera Species 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000011435 rock Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
This application discloses a kind of push-bench, including the shell with central cavity；Center is equipped with type chamber and is removably installed in the intracorporal inner casing of the center cavity；It is installed on the cutterhead of the front end of the inner casing, the cross section of the cutterhead can match with the cross section of the inner casing.Using the push-bench, since the inner casing and the shell can be disconnected, therefore the opposite direction of the inner casing and the cutterhead out of tunneling along push-bench excavation direction can be drawn in starting well, to complete jacking construction, no setting is required, and received well can smoothly complete jacking construction.Therefore, push-bench provided herein can smoothly complete jacking construction under the premise of no setting is required received well.
Description
Technical field
The utility model relates to technical field of engineering equipment, in particular to a kind of push-bench.
Background technique
With the development of economy, the paces of urbanization process are gradually accelerated.In limited city space, because of a large amount of stream of people
And wagon flow, the Urban underground Tunnels demand such as underground pedestrian passageway, subway tunnel increase therewith.Have in view of push-bench to construction
Arround influence it is small, the advantages such as barrier can be passed through, push-bench is widely used in the construction of the various subterranean tunnels in city.
When the existing push-bench of utilization excavates Urban underground Tunnel, need to usually distinguish at the both ends in tunnel to be excavated pre-
If starting well and received well, to facilitate push-bench to originate and receive.
But received well reception can not be set due to being limited by the landform in house, street, traffic etc. when initial stage construction
Push-bench, or encounter the unpredictable obstacles such as larger tree root, larger rock, push-bench failure in the construction process and make nothing
Method receives push-bench using received well, and causing push-bench to cannot be introduced into construction tunnel or push-bench can not haul out in construction tunnel
A series of problem, it is thus evident that serious problems that existing push-bench may be generated because received well can not be utilized to receive push-bench
Solution reasonably is not yet received at present.
Therefore, how it to be smoothly safely completed jacking construction in the case where not utilizing received well, is current this field skill
Art personnel technical problem urgently to be resolved.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of push-bench, it is able to solve in no setting is required received well
Under the premise of smoothly complete jacking construction.
Its concrete scheme is as follows:
A kind of push-bench provided by the present application, comprising:
Shell with central cavity；
Center is equipped with type chamber and is removably installed in the intracorporal inner casing of the center cavity；
It is installed on the cutterhead of the inner casing front end, the cross section of the cutterhead can be with the cross section kissing of the inner casing
It closes.
Preferably, the cutterhead includes:
Partition set on the front end of the type chamber；
Across the partition, the toolbox for tunneling tunnel；
It is connected with the toolbox, the driving assembly for driving the toolbox to feed to tunnel.
Preferably, the toolbox includes the sub- toolbox of several groups, the adjacent sub- toolbox of any two
It is staggeredly arranged before and after the central axis of the type chamber.
Preferably, the sub- toolbox includes:
Several groups are respectively arranged on the partition and the eccentric sub- toolbox of ring-shaped distributed butterfly；
Several groups are respectively arranged on the symmetrically sub- cutter group of the butterfly between the eccentric sub- toolbox of the butterfly of adjacent two
Part.
Preferably, the central cavity is specially rectangular centre cavity, and the eccentric sub- toolbox of the butterfly specifically includes
The eccentric sub- toolbox of four groups of butterflies being distributed on four apex angles of the rectangular centre cavity respectively, the butterfly are symmetrically sub
It is symmetrically sub that toolbox specifically includes the butterfly that two groups are in staggered distribution along the longitudinal center axis of the rectangular centre cavity respectively
Toolbox.
Preferably, the eccentric sub- toolbox of the butterfly includes:
Across the eccentrically weighted shaft of the partition；
Two are adjacently mounted to short sub- toolbox on the eccentrically weighted shaft and in a certain angle；
Two eldest son's cutter groups being connected respectively with two short sub- toolboxs close to one end of the eccentrically weighted shaft
Part.
Preferably, further includes:
It is installed in the central cavity and is distributed along the central axis of the central cavity, for adjusting driving attitude
Deviation correcting device.
Preferably, further includes:
It is installed on rear side of the cutterhead, the conveying device for conveying slag charge.
With respect to the background art, push-bench provided herein, including the shell with central cavity；Center is equipped with type
Chamber and it is removably installed in the intracorporal inner casing of the center cavity；It is installed on the cutterhead of the front end of the inner casing, the cutterhead
Cross section can match with the cross section of the inner casing.
When push-bench provided herein along it is default excavate route and excavate to the predeterminated position in tunnel when, excavating tunnel
Under the premise of there is sufficient intensity around road, the intracorporal inner casing of the center cavity will be installed on and be disconnected with the shell, and
The cutterhead being mounted in the inner casing is turned into setting position, makes cross section phase of the cross section of the cutterhead with the inner casing
Coincide, the cutterhead for then pulling the inner casing and being installed on it, by the inner casing and the cutterhead, the shell successively from
The opposite direction in tunneling along push-bench excavation direction is drawn in starting well, is then received to ground, to complete to push up
Pipe construction, entire jacking construction in the process individually hauls out the inner casing, the cutterhead out of tunneling starting well is
Can, no setting is required, and received well can smoothly complete jacking construction.Therefore, push-bench provided herein can be no setting is required
Jacking construction is smoothly completed under the premise of received well.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 provides push-bench main view diagrammatic cross-section by a kind of specific embodiment of the utility model；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the partial structurtes axonometric drawing of shell and inner casing in Fig. 1.
Appended drawing reference is as follows:
Shell 1, inner casing 2, cutterhead 3, deviation correcting device 4 and conveying device 5；
Partition 31, toolbox 32 and driving assembly 33；
The symmetrical sub- toolbox 322 of the eccentric sub- toolbox 321 of butterfly and butterfly；
Eccentrically weighted shaft 3211, short sub- toolbox 3212 and eldest son's toolbox 3213.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In order to make those skilled in the art better understand the scheme of the utility model, with reference to the accompanying drawing and specific implementation
The utility model is described in further detail for example.
Fig. 1 to Fig. 3 is please referred to, Fig. 1 provides push-bench main view section by a kind of specific embodiment of the utility model and shows
It is intended to；Fig. 2 is the side view of Fig. 1；Fig. 3 is the partial structurtes axonometric drawing of shell and inner casing in Fig. 1.
The utility model embodiment discloses a kind of push-bench, including shell 1, inner casing 2, cutterhead 3, further includes deviation correcting device
4 and conveying device 5.
Shell 1 has central cavity, and periphery usually fits with extraneous rock mass, and branch is played during jacking construction
Support, protect the effect of other components.In this specific embodiment, the cross section of shell 1 is specially rectangular ring structure, right
The push-bench answered is commonly referred to as rectangular pipe jacking machine, certainly, can also be annular structure in the cross section of shell 1 or other are cyclic annular
Structure has no effect on realization the purpose of this utility model.Generally, shell 1 divides for anterior shield, middle shield and tail shield three parts, and three
Dividing, which the modes such as can be bolted, weld, riveting, is fixed together, wherein each section all uses separate structure, specifically
Ground, each section is bolted together by eight pieces of metal plates, first to lift each piecemeal of shell 1 to originating
In well.Certainly, depending on the factor of block count amount concrete foundation tunnel size of anterior shield, middle shield and tail shield etc., eight are not limited to
Block, it is clear that the structure of shell 1 is without being limited thereto.
Inner casing 2 is mounted in the central cavity of shell 1, and center is equipped with type chamber, in order to mention for the installation of other component
For space.In this specific embodiment, the width of inner casing 2 is less than the width of the central cavity of shell 1, and inner casing 2 can be used point
Body formula is specifically bolted by upper and lower two parts.Certainly, inner casing 2 is also possible to monoblock type or other split type knots
Structure has no effect on realization the utility model aim.
Cutterhead 3 is mounted on the front end of the type chamber of inner casing 2, and the cross section of cutterhead 3 can be with the cross section of the type chamber of inner casing 2
It matches, is fully located at the profile of cutterhead 3 in the central cavity of shell 1.In this specific embodiment, cutterhead 3 includes partition
31, toolbox 32 and driving assembly 33.
Wherein, partition 31 is set to the front end of the type chamber of inner casing 2, is mainly used for supporting toolbox 32 and driving assembly 33,
It is also used for separating the face in tunnel and internal unit simultaneously.Specifically, the structure with inner casing 2 matches, and partition 31 includes upper
Lower two pieces of metal plates, the contact jaw of two pieces of metal plates are respectively equipped with the bending part bent backward, and two bending parts pass through bolt spiral shell
Mother is fixed with one, and two pieces of metal plates are integrated with the type chamber of inner casing 2 also by being bolted respectively, so as to by inner casing 2
Upper and lower two parts are linked together.Certainly, the structure, fixed form and connection type of partition 31 are without being limited thereto.It is also set on partition 31
There is injected hole, to inject hardening slurry after the completion of jacking construction, in order to stabilize face.Wherein, face typically refers to
The working face pushed ahead during tunneling.
Toolbox 32 passes through partition 31, is mainly used for tunneling tunnel.
Toolbox 32 includes the sub- toolbox of several groups, and the adjacent sub- toolbox of any two is along 2 type chamber of inner casing
It is staggeredly arranged before and after central axis.
In this specific embodiment, sub- toolbox includes the eccentric sub- toolbox 321 of butterfly and butterfly symmetrically sub- cutter
Component 322.
Wherein, the eccentric sub- toolbox 321 of butterfly includes several groups, and the eccentric sub- toolbox 321 of several groups butterfly is
It is mounted on partition 31.In addition, the eccentric sub- annularly distribution of toolbox 321 of several groups butterfly, in this specific embodiment, tool
Body is rectangular ring distribution, is also possible to circular distribution or other kinds of annular distribution, and having no effect on realization, this is practical new
The purpose of type.In this specific embodiment, the central cavity of shell 1 is specially rectangular centre cavity, naturally, toolbox 32
Distribution shape is also rectangular ring structure, specifically includes upper layer and lower layer, and the eccentric sub- toolbox 321 of butterfly specifically includes four components
The eccentric sub- toolbox of the butterfly not being distributed on four apex angles of the rectangular centre cavity, wherein being located at two butterflies on upper layer
The eccentric sub- toolbox 321 of formula is preposition, positioned at eccentric sub- 321 postposition of toolbox of the butterfly of lower layer.Correspondingly, butterfly is symmetrically sub
Toolbox 322 specifically includes butterfly that two groups are in staggered distribution along the longitudinal center axis of rectangular centre cavity respectively symmetrically sub- knife
Has component, wherein be located at symmetrical sub- 322 postposition of toolbox of butterfly on upper layer, positioned at the symmetrical sub- toolbox of butterfly of lower layer
322 is preposition.Certainly, the quantity and distribution mode of the eccentric sub- toolbox 321 of butterfly are not limited to this.Since any two are adjacent
Sub- toolbox be in staggered distribution before and after the central axis of 2 type chamber of inner casing, therefore the top soil body, rock mass etc. can be effectively prevented
It collapses.
In this specific embodiment, the eccentric sub- toolbox 321 of butterfly includes eccentrically weighted shaft 3211, short sub- toolbox
3212 and eldest son's toolbox 3213.Wherein, eccentrically weighted shaft 3211 is installed on partition 31, is mainly used for supporting cutter.Butterfly
Eccentric sub- toolbox 321 specifically includes two short sub- toolboxs 3212 being adjacently mounted on eccentrically weighted shaft 3211, and
It is in a certain angle between two short sub- toolbox 3212.In this specific embodiment, usually match on short sub- toolbox 3212
It is equipped with the cutters such as several cutters, scraper and the center cutter that is connected with eccentrically weighted shaft 3211.The eccentric sub- toolbox 321 of butterfly is specific
The eldest son's toolbox being connected respectively with two short sub- toolbox 3212 close to one end of eccentrically weighted shaft 3211 including two
3213, in this specific embodiment, generally also configured with knives such as several cutters, scraper, center cutters on eldest son's toolbox 3213
Tool.When four eccentrically weighted shafts 3211 turn to state described in attached drawing 2, entire toolbox 32 is just fully located at shell 1
In central cavity, so that cutter 3 and inner casing 2 are pulled out simultaneously when dismantling inner casing 2.Significantly, since butterfly is eccentric
The special construction of sub- toolbox 321 changes its excavated area in a certain range.Of course, it is possible in the eccentric sub- cutter of butterfly
Setting angle detection device on component 321 facilitates the rotation angle of detection eccentrically weighted shaft 3211, to control eccentrically weighted shaft 3211
Rotary state, so as to while guaranteeing to be retracted into the inner casing of inner casing 2, additionally it is possible to promote digging efficiency.Certainly, butterfly
The structure of eccentric sub- toolbox 321, quantity and distribution mode are without being limited thereto, have no effect on reality using other similar scheme substitution
Existing the purpose of this utility model.
Symmetrically sub- toolbox 322 also includes several groups to butterfly, and symmetrically sub- toolbox 322 is respectively arranged on several groups butterfly
Between the eccentric sub- toolbox 321 of two adjacent butterflies.It is worth noting that, symmetrically sub- toolbox 322 is located at butterfly to butterfly
Eccentric sub- 321 front end of toolbox of formula, namely with symmetrical sub- 322 phase of toolbox of the eccentric sub- toolbox 321 of butterfly and butterfly
Setting is staggered front to back for the front end face of partition 31.In this specific embodiment, symmetrically sub- toolbox 322 specifically includes butterfly
Two, and symmetrically sub- toolbox 322 is located in the longitudinal center axis of above-mentioned rectangular ring structure two butterflies, is guaranteeing respectively
Also ensure that the cave in accident locally occurred does not influence to produce while toolbox does not interfere.Certainly, butterfly is symmetrically sub
The quantity and installation site of toolbox 322 are without being limited thereto.Symmetrically sub- toolbox 322 specifically includes two root long degree substantially to butterfly
Equal and length is longer compared with eldest son's toolbox, similarly, should compared be also configured on eldest son's toolbox cutter, scraper, in
The cutters such as heart knife, certainly, butterfly symmetrically sub- toolbox 322 construct it is without being limited thereto.
Driving assembly 33 is connected with toolbox 32, is mainly used for that toolbox 32 is driven to feed to tunnel.It is specific at this
In embodiment, driving assembly 33 can specifically include the devices such as motor and retarder, it is of course also possible to use hydraulic, air pressure etc.
Other kinds of driving assembly substitution.Specifically, each group of toolbox 32 configures altogether individually equipped with one group of driving assembly 33
There are six groups of driving assemblies 33.Generally, the number of toolbox 32 that the quantity of driving assembly 33 and every group of driving assembly 33 are driven
The practical calculating of concrete foundation is measured to determine.It is apparent that the driving method and quantity of driving assembly 33 are not limited to this.
The both ends of deviation correcting device 4 are installed in the central cavity of shell 1, and the length direction of deviation correcting device 4 is along shell 1
The central axis of central cavity is distributed, and is mainly used for adjusting driving attitude.In this specific embodiment, deviation correcting device 4 is specifically pacified
Mounted in the middle shield of shell 1 and the junction of tail shield, to facilitate the driving attitude of adjustment push-bench.In this specific embodiment, it entangles
Deflection device 4 is specially correction oil cylinder, and it is intracorporal with the center cavity that is fixed on shell 1 that the both ends of the correction oil cylinder pass through pin shaft respectively
Two hinged-supports are connected.In this specific embodiment, two correction oil cylinders are installed in every piece piecemeal of middle shield and tail shield, from
Right eight pieces of piecemeals can install 16 deviation correcting devices 4.Certainly, correction mode, fixed form and quantity of deviation correcting device 4 etc. are equal
It is without being limited thereto.
Conveying device 5 is mounted on the rear side of cutterhead 3, mainly for delivery of slag charge.In this specific embodiment, conveying device
5 preferred screw conveyors.Specifically, conveying device 5 specifically includes two helical feeds being arranged symmetrically along tunnel width direction
Machine facilitates cutterhead 3 to work normally so that the slag charge under excavating can be transported to the external world in time.Certainly, conveying device 5 is defeated
Send mode and quantity without being limited thereto.
The application further includes tightening part.Tightening part is mounted on the tail portion of inner casing 2, preferably has the wirerope of appropriate outer diameter,
Facilitate that opposite direction is drawn to starting well out of tunneling by inner casing 2 and cutterhead 3.Certainly, the type of tightening part is without being limited thereto.
In conclusion push-bench provided herein, including shell 1, inner casing 2 and cutterhead 3.Cutterhead 3 is mounted on inner casing 2
On, inner casing 2 is removably mounted on shell 1, when inner casing 2 is disconnected with shell 1, pulls inner casing 2, can be by inner casing 2
It is drawn in starting well with opposite direction of the cutterhead 3 out of shell 1 central cavity along tunneling direction, is received without being separately provided
Well, therefore, push-bench provided herein, which is able to solve, smoothly completes jacking construction under the premise of no setting is required received well.
The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this is practical new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest scope.
Claims (8)
1. a kind of push-bench characterized by comprising
Shell with central cavity；
Center is equipped with type chamber and is removably installed in the intracorporal inner casing of the center cavity；
It is installed on the cutterhead of the inner casing front end, the cross section of the cutterhead can match with the cross section of the inner casing.
2. push-bench according to claim 1, which is characterized in that the cutterhead includes:
Partition set on the front end of the type chamber；
Across the partition, the toolbox for tunneling tunnel；
It is connected with the toolbox, the driving assembly for driving the toolbox to feed to tunnel.
3. push-bench according to claim 2, which is characterized in that the toolbox includes the sub- toolbox of several groups,
The adjacent sub- toolbox of any two is staggeredly arranged before and after the central axis of the type chamber.
4. push-bench according to claim 3, which is characterized in that the sub- toolbox includes:
Several groups are respectively arranged on the partition and the eccentric sub- toolbox of ring-shaped distributed butterfly；
Several groups are respectively arranged on the symmetrically sub- toolbox of the butterfly between the eccentric sub- toolbox of the butterfly of adjacent two.
5. push-bench according to claim 4, which is characterized in that the central cavity is specially rectangular centre cavity, institute
It states the eccentric sub- toolbox of butterfly and specifically includes butterfly on four apex angles that four groups are distributed in the rectangular centre cavity respectively
Eccentric sub- toolbox, symmetrically sub- toolbox specifically includes two groups respectively along the longitudinal direction of the rectangular centre cavity to the butterfly
The symmetrical sub- toolbox of the butterfly that central axis is in staggered distribution.
6. push-bench according to claim 5, which is characterized in that the eccentric sub- toolbox of the butterfly includes:
Across the eccentrically weighted shaft of the partition；
Two are adjacently mounted to short sub- toolbox on the eccentrically weighted shaft and in a certain angle；
Two eldest son's toolboxs being connected respectively with two short sub- toolboxs close to one end of the eccentrically weighted shaft.
7. push-bench according to any one of claims 1 to 6, which is characterized in that further include:
It is installed in the central cavity and along the distribution of the central axis of the central cavity, the correction for adjusting driving attitude
Device.
8. according to the described in any item push-bench of claim 2 to 6, which is characterized in that further include:
It is installed on rear side of the cutterhead, the conveying device for conveying slag charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851816.9U CN208220805U (en) | 2018-05-31 | 2018-05-31 | A kind of push-bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820851816.9U CN208220805U (en) | 2018-05-31 | 2018-05-31 | A kind of push-bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208220805U true CN208220805U (en) | 2018-12-11 |
Family
ID=64507888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820851816.9U Withdrawn - After Issue CN208220805U (en) | 2018-05-31 | 2018-05-31 | A kind of push-bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208220805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729922A (en) * | 2018-05-31 | 2018-11-02 | 中国铁建重工集团有限公司 | A kind of push-bench and formula pipe jacking construction method can be retracted |
-
2018
- 2018-05-31 CN CN201820851816.9U patent/CN208220805U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729922A (en) * | 2018-05-31 | 2018-11-02 | 中国铁建重工集团有限公司 | A kind of push-bench and formula pipe jacking construction method can be retracted |
| CN108729922B (en) * | 2018-05-31 | 2024-02-02 | 中国铁建重工集团股份有限公司 | Push bench and retractable push bench construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108729922A (en) | A kind of push-bench and formula pipe jacking construction method can be retracted | |
| CN110985025B (en) | Method for reconstructing shield tunnel to carry out mine construction | |
| CN202707070U (en) | Composite shield machine with earth pressure balance and slurry balance double modes | |
| CN104088647B (en) | Shield tube push bench with super-large rectangular cross section | |
| CN207905719U (en) | Chain broaching | |
| CN104196538A (en) | Combined type double-shield tunneling machine | |
| CN104806262A (en) | Six-cutter head rectangular tube pushing machine | |
| CN102400694A (en) | Reinforcement method for combined part of shield tunnel and mining-method tunnel | |
| CN108150185A (en) | A kind of planet gear type profiling excavating device for rectangular cross section constructing tunnel | |
| CN104712333A (en) | Large-width one-step roadway formation roadway rapid excavation technology | |
| CN208220805U (en) | A kind of push-bench | |
| CN212359762U (en) | High-speed intelligent shield constructs machine | |
| CN210564541U (en) | Quick heading machine | |
| CN108915714A (en) | The double TBM installation methods in one hole | |
| CN208380577U (en) | The soil body transportation system of large section earth pressure balance box culvert development machine | |
| CN209724346U (en) | Mini-sized tunnelling machine | |
| CN205936623U (en) | Shield constructs quick -witted advancing mechanism | |
| CN111058852A (en) | High-speed intelligent shield constructs machine | |
| CN113431596B (en) | Rotatable hard rock advanced cutting system | |
| CN106761791B (en) | Tunnel boring machine and construction method thereof | |
| CN106640098A (en) | Shield construction method for subway tunnel | |
| CN207160111U (en) | A kind of broken rock and soil device | |
| CN201539259U (en) | Grille-type square section trenchless pipe-jacking excavating device | |
| Klados | Experiences with hard rock shielded TBMs in special conditions | |
| CN205225267U (en) | A tunnelling aircraft nose that is used for heavy -calibre culvert pipe top to advance to cut soil and offset |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 410100 No. 88 East 7 Line, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee after: China Railway Construction Heavy Industry Group Co.,Ltd. Address before: 410100 No. 88 Dongqi Road, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Patentee before: China Railway Construction Heavy Industry Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181211 Effective date of abandoning: 20240202 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181211 Effective date of abandoning: 20240202 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |