CN106245679B - Across subway shallow embedding open cut zero unloads common pipe trench construction method - Google Patents
Across subway shallow embedding open cut zero unloads common pipe trench construction method Download PDFInfo
- Publication number
- CN106245679B CN106245679B CN201610764069.0A CN201610764069A CN106245679B CN 106245679 B CN106245679 B CN 106245679B CN 201610764069 A CN201610764069 A CN 201610764069A CN 106245679 B CN106245679 B CN 106245679B
- Authority
- CN
- China
- Prior art keywords
- subway
- groove
- pipe trench
- unloads
- construction method
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
- E02D29/05—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them at least part of the cross-section being constructed in an open excavation or from the ground surface, e.g. assembled in a trench
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Sewage (AREA)
Abstract
The present invention discloses a kind of across subway shallow embedding open cut zero and unloads common pipe trench construction method, it passes through segmentation prefabricating pipe trench structure；The pre-groove of cell across subway section is carried out jumping storehouse excavation, and same pre-groove is also carried out and jumps storehouse excavation；Monitor the section deformation quantity of subway in real time at the same time, construction speed is controlled according to the section deformation quantity of subway, install prefabricated pipe fitting before section deformation is fast-developing and implement to compensate return load rapidly.The construction method that across the subway shallow embedding open cut zero unloads, it excavates pre-groove by jumping storehouse in the away minor segment, installs segmentation prefabricating pipe trench structure prefabricated pipe fitting before section deformation is fast-developing and implements compensation return load rapidly；So that subway segment incremental deformation final after the construction of across subway common pipe trench, less than 2mm, Deformation control effect is preferable, far below agreing value 10mm, and the subway protection requirement of zero load during across subway shallow embedding open-cut is met.
Description
Technical field
The present invention relates to technical field of building construction, more particularly to a kind of across subway shallow embedding open cut zero unloads common pipe trench and applies
Work method.
Background technology
With the fast development of urban construction, the engineering construction project of near-earth iron is always difficult to avoid, and track traffic is in itself
Particularity determine the high susceptibility of its safety problem, by taking Soviet Union, Shanghai area as an example, in the range of 50 meters of subway line both sides
Base pit engineering will include track safety supervision management and control scope, and Gui Jiao departments will intervene each ring of engineering design and construction overall process comprehensively
Section monitoring.It is then more rare directly across the pit slot excavation above subway line for excavation of foundation pit compared to track both sides,
Because design link generally has sought to avoid this difficulty, but this engineering demand is existing for reality.For so
Engineering project, it is necessary to which a set of special construction method could control the deformation extent of ground iron pipe conduit agreing in value, so as to obtain
The construction permits of get Gui Jiao safety supervisions department.
The content of the invention
In view of this, it is necessary to which a kind of subway protection for meeting zero load during across subway shallow embedding open-cut is provided
It is required that across subway shallow embedding open cut zero unloading common pipe trench construction method.
A kind of across subway shallow embedding open cut zero unloads common pipe trench construction method, and across the subway shallow embedding open cut zero unloads jointly
Drainage construction method includes the following steps：
S1, segmentation prefabricating pipe trench structure；
S2, the pre-groove to cell across subway section carry out jumping storehouse excavation, and also carry out jump to same pre-groove
Excavate in storehouse；
The section deformation quantity of S3, in real time monitoring subway, controls construction speed according to the section deformation quantity of subway, becomes in section
Prefabricated pipe fitting is installed before shape is fast-developing and implements compensation return load rapidly.
Preferably, the pipe trench structure includes prefabricated U type groove and prefabricated cover board, and the U-type groove and prefabricated cover board surround shape
Into a rectangular enclosure.
Preferably, when being equipped with overall U-type groove in the spaced pre-groove in left and right, then be arranged at left and right pre-groove it
Between intermediate prefabricated groove in U-type groove by adjacent overall U-type groove cell wall and one piece of prefabricated panel being arranged between cell wall
Form.
Preferably, in the digging process for carrying out pre-groove, excavation pipeline first is more, the larger prefabricated ditch of width
Groove.
Preferably, each pre-groove is segmented, and segment trench is carried out to jump storehouse cyclic ordering, same sequence number
Segmentation must excavate at the same time.
Preferably, the hanging device of the pipe trench structure is arranged on the position of subway upper vertical regions both sides.
Preferably, the silt weight of the compensation return load is equal to the weight after the silt deduction component dug.
Preferably, the standard construction period using the daily subway stoppage in transit phase as the common pipe trench, each standard construction
Cycle accurately completes a standard operation section of planning.
Preferably, the hanging device lifts U-type groove using a lifting shoulder pole, and the lifting shoulder pole includes a length
The degree central shaft rod equal with U-type groove body length, and the branch sunpender at central shaft rod both ends is vertical at, the length of the branch sunpender
Spacing between the same side hole for hoist of U-type groove is identical, and the U-type groove passes through the steel wire rope and branch sunpender for passing through hole for hoist
Both ends connection.
Preferably, the both ends of the central shaft rod are arranged with multiple spacing screw holes, and the branch sunpender is bolted on
In central shaft rod, by adjusting the cooperation of bolt and screw hole, the spacing between the branch sunpender of both ends is adjusted.
The construction method that across subway shallow embedding open cut zero of the present invention unloads, it is excavated in advance by jumping storehouse in the away minor segment
Groove processed, installs segmentation prefabricating pipe trench structure prefabricated pipe fitting before section deformation is fast-developing and implements compensation return load rapidly；
So that subway segment incremental deformation final after across subway common pipe trench construction, less than 2mm, Deformation control effect is preferable, far
Less than agreing value 10mm, and meet the subway protection requirement of zero load during across subway shallow embedding open-cut.Present invention hair
The construction method that bright across the subway shallow embedding open cut zero unloads is easy to operate, has saved construction cost and cycle, real suitable for promoting
OK.
Brief description of the drawings
Fig. 1 is the FB(flow block) that across subway shallow embedding open cut zero described in the embodiment of the present invention unloads common pipe trench construction method；
Fig. 2 is the structure diagram of pipe trench structure described in the embodiment of the present invention；
Fig. 3 jumps storehouse for away minor segment of the present invention and excavates pre-groove plane block plan；
Fig. 4 is segmentation prefabricating pipe trench structural plan block plan of the present invention；
Fig. 5 for it is of the present invention install prefabricated pipe fitting before section deformation is fast-developing and implement compensation return load rapidly show
It is intended to；
Fig. 6 is segmentation prefabricating pipe trench detail of construction schematic diagram of the present invention；
Fig. 7 is the structure diagram of lifting shoulder pole of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated, it will be appreciated that and the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
The Engineering Projects that patent of the present invention is relied on is certain large size city synthesis, and 14 Wan ㎡ of floor space, one is runed
In subway line pass through in the middle part of the plot, the underground space of whole engineering is separated into two independent foundation pits, because function is set
Needs on meter, it is necessary to a common pipe trench is set to connect the synthetic pipe network system of two independent foundation pit both sides, and track is pacified
It is necessary " zero unloading " to supervise the pit slot excavation project carried out above goal track.Such case there is no precedent in the whole nation.
As shown in Figure 1, the embodiment of the present invention, which provides a kind of across subway shallow embedding open cut zero, unloads common pipe trench construction method, institute
Across the subway unloading of shallow embedding open cut zero common pipe trench construction method is stated to include the following steps：
S1, segmentation prefabricating pipe trench structure 10.
Specifically, as shown in Fig. 2, the pipe trench structure 10 includes U-type groove 101 and prefabricated cover board 103, the U-type groove 101
Surround to form a rectangular enclosure with prefabricated cover board 103.Meanwhile to save construction cost, if left and right is spaced prefabricated
Overall U-type groove 101 is equipped with groove, then is arranged at the U-type groove 101 in the intermediate prefabricated groove between the pre-groove of left and right by phase
The cell wall and one piece of prefabricated panel 102 being arranged between cell wall of adjacent entirety U-type groove 101 are formed.
S2, the pre-groove to cell across subway section carry out jumping storehouse excavation, and also carry out jump to same pre-groove
Excavate in storehouse；
Carry out pre-groove digging process in, carry out pre-groove digging process in, first excavate pipeline compared with
It is more, the larger pre-groove of width.I.e. as shown in Figure 3 and Figure 4, A storehouses, B storehouses, C storehouses, D storehouses, totally 5, E storehouses are included in the present embodiment
Pre-groove, wherein, to set the pre-groove of power pipe, B storehouses, C storehouses, D storehouses, E storehouses are the prefabricated ditch of waterway pipe in A storehouses
Groove, due to having more pipeline in A storehouses, and the width in A storehouses is larger, therefore A storehouses are excavated first, is set according to storehouse is jumped
It is fixed, C storehouses, B storehouses, E storehouses, D storehouses are excavated successively after having been dug in A storehouses.
Meanwhile, it is necessary to be segmented to the pre-groove while being excavated to same pre-groove, and to point
Section groove carries out jumping storehouse cyclic ordering, and the segmentation of same sequence number must excavate at the same time.I.e. as shown in Figure 3 and Figure 4, A storehouses are divided into
Eight sections, and the numbering cycle of 1-4 is carried out successively, finally, first segment and the 5th section are same sequence number, and second segment is phase with the 6th section
Same sequence number, the 3rd section be same sequence number with the 7th section, the 4th section and the 8th section be same sequence number, then first segment and the 5th section at the same time
Excavate, second segment and the 6th section are excavated at the same time successively afterwards, the 3rd section is excavated at the same time with the 7th section, and the 4th section same with the 8th section
When excavate.Preferably, in geological conditions allowed band, when the segmentation of same sequence number excavate at the same time, also can
Segmentation to adjacent sequence number excavate at the same time.
While being excavated to segment trench, based on the reverse design of construction demand progress, storehouse is jumped according to the away minor segment
Pipe trench structure 10 is accordingly split in the segmentation for excavating pre-groove.Since the hanging device of pipe trench structure 10 is large-scale device
Tool, its weight is larger, and to avoid causing the influence to subway, the hanging device of the pipe trench structure 10 is necessarily placed on subway
The position of square vertical area both sides.Preferably, set the position of the hanging device and subway upper vertical regions border it
Between distance be 20-40m, according to practice of construction demand, the hanging device used in the present embodiment is crawler crane.
The section deformation quantity of S3, in real time monitoring subway, controls construction speed according to the section deformation quantity of subway, becomes in section
Prefabricated pipe fitting is installed before shape is fast-developing and implements compensation return load rapidly.
The basic principle of subway protection is zero unloading, and after 10 rigging out of pipe trench structure and time soil, hollow pipeline exists
There is loss in terms of load or compared with undisturbed soil, the present invention takes the mode of compensation preloading to handle, and specific method will be as shown in figure 5, will
Packed sand hill is previously placed in special reinforced cage, implements directly to be transported with fork truck during preloading.
After single channel pipeline installs, open cover board and be directly backfilling into bagged sand when compensating return load within pipeline.
Easy to Miniature digging machine and navy barrow operation can be turned, institute as the Active workings for closing on pipeline in order to which the terrestrial path finished will be backfilled
Stating backfilling working will be interspersed among overall excavation assembling work progress.
Specifically, the silt weight of the compensation return load, which is equal to the silt dug, deducts the weight after component.
The normal range (NR) of the section deformation quantity of the subway is 5mm-10mm, when the section deformation quantity of subway is in 5mm-10mm
In the range of, then construct according to normal progress, when the section deformation quantity of subway exceeds the scope of 5mm-10mm, then need
Accelerate construction progress, it is necessary to which peace completes the work for setting prefabricated pipe fitting and implementing compensation return load rapidly before section deformation is fast-developing
Make.
To avoid the normal operation of subway, in the present embodiment the time of engineering construction be using daily subway stop transport the phase as
The standard construction period of the common pipe trench, and each standard construction period accurately completes a standard operation section of planning.I.e.
Daily subway night is constructed in limited time after stopping transport, and excavation point is recovered original appearance before next day metro operation, that is, returns soil, heap
Carry, load restores, as follows to the reasonable arrangement longitudinally excavated of same pre-groove as principle：In the prefabricated ditch of same
On groove, it can at most carry out excavating work while two segmentations every night.Each segmentation is advisable with including 2-section pipe section, is controlled from the time
System, from losing in short-term, load coverage control angle is proper.
The construction method that across subway shallow embedding open cut zero of the present invention unloads, it is excavated in advance by jumping storehouse in the away minor segment
Groove processed, installs 10 prefabricated pipe fitting of segmentation prefabricating pipe trench structure before section deformation is fast-developing and implements to compensate back rapidly
Carry；So that subway segment incremental deformation final after across subway common pipe trench construction is less than 2mm, Deformation control effect reason
Think, far below agreing value 10mm, and meet the subway protection requirement of zero load during across subway shallow embedding open-cut.This hair
The construction method that across subway shallow embedding open cut zero described in bright invention unloads is easy to operate, construction cost and cycle has been saved, suitable for pushing away
It is wide to carry out.
In the construction method that above-mentioned across subway shallow embedding open cut zero unloads, when being lifted to pipe trench structure 10,
Since the cell wall hardness of U-type groove 101 is relatively low, if there are larger angle between the steel wire rope and cell wall of lifting, cell wall is subject to partially
Tiltedly in the power on vertical direction, then easily it is broken, therefore, to avoid in lifting U-type groove 101 easy stress from concentrating
Breakage, as shown in Figure 6 and Figure 7, the present invention also provides a kind of lifting lifted suitable for hanging device to U-type groove 101 is flat
Load 20, the lifting shoulder pole 20 include the length central shaft rod 201 equal with 101 body length of U-type groove, and is vertical at
The branch sunpender 202 at 201 both ends of axostylus axostyle, the spacing between the length of the branch sunpender 202 and the same side hole for hoist of U-type groove 101
Identical, the U-type groove 101 passes through the steel wire rope of hole for hoist to be connected with the both ends of branch sunpender 202 by one.
Further, the both ends of the central shaft rod 201 are arranged with multiple spacing screw holes 203, and the branch sunpender 202 passes through
Bolt is fixed in central shaft rod 201, by adjusting the cooperation of bolt and spacing screw hole 203, between both ends branch sunpender 202
Away from being adjusted, so as to lift various sizes of U-type groove 101.
Case described above is only the implementation that is relied on of the present invention by example, is not intended to limit the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (7)
1. a kind of across subway shallow embedding open cut zero unloads common pipe trench construction method, it is characterised in that across the subway shallow embedding open cut
Zero unloading common pipe trench construction method includes the following steps：
S1, segmentation prefabricating pipe trench structure；
S2, the pre-groove to cell across subway section carry out jumping storehouse excavation, and also carry out same pre-groove jump storehouse and open
Dig；
The section deformation quantity of S3, in real time monitoring subway, construction speed is controlled according to the section deformation quantity of subway, fast in section deformation
Prefabricated pipe fitting is installed before speed development and implements compensation return load rapidly；
Wherein, the hanging device of the pipe trench structure is arranged on the position of subway upper vertical regions both sides；
The hanging device lifts U-type groove using a lifting shoulder pole, and the lifting shoulder pole includes a length and U-type groove sheet
The equal central shaft rod of body length, and be vertical at the branch sunpender at central shaft rod both ends, the length of the branch sunpender and U-type groove it is same
Spacing between the hole for hoist of side is identical, and the U-type groove passes through the steel wire rope of hole for hoist to be connected with the both ends of branch sunpender by one；
The both ends of the central shaft rod are arranged with multiple spacing screw holes, and the branch sunpender is bolted in central shaft rod, lead to
The cooperation of adjustment bolt and screw hole is crossed, the spacing between the branch sunpender of both ends is adjusted.
2. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 1, it is characterised in that the pipe
Ditch structure (10) includes prefabricated U type groove (101) and prefabricated cover board (103), and the U-type groove (101) and prefabricated cover board (103) surround
Form a rectangular enclosure.
3. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 2, it is characterised in that works as left and right
Overall U-type groove, the then U being arranged in the intermediate prefabricated groove between the pre-groove of left and right are equipped with spaced pre-groove
Type groove is made of the cell wall and one piece of prefabricated panel (102) being arranged between cell wall of adjacent overall U-type groove.
4. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 1, it is characterised in that is carrying out
In the digging process of pre-groove, excavation pipeline first is more, the larger pre-groove of width.
5. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 1, it is characterised in that to each
Bar pre-groove is segmented, and segment trench is carried out to jump storehouse cyclic ordering, and the segmentation of same sequence number must excavate at the same time.
6. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 1, it is characterised in that the benefit
The silt weight for repaying return load is equal to the weight after the silt deduction component dug.
7. across subway shallow embedding open cut zero unloads common pipe trench construction method according to claim 1, it is characterised in that will be daily
Subway stop transport standard construction period of the phase as the common pipe trench, each standard construction period accurately completes one of planning
Standard operation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764069.0A CN106245679B (en) | 2016-08-30 | 2016-08-30 | Across subway shallow embedding open cut zero unloads common pipe trench construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610764069.0A CN106245679B (en) | 2016-08-30 | 2016-08-30 | Across subway shallow embedding open cut zero unloads common pipe trench construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106245679A CN106245679A (en) | 2016-12-21 |
| CN106245679B true CN106245679B (en) | 2018-04-17 |
Family
ID=57597875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610764069.0A Active CN106245679B (en) | 2016-08-30 | 2016-08-30 | Across subway shallow embedding open cut zero unloads common pipe trench construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106245679B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109778904A (en) * | 2017-11-15 | 2019-05-21 | 北京建工路桥集团有限公司 | A kind of construction method of multi-storey road frame structure jumping warehouse |
| CN108374421A (en) * | 2018-02-08 | 2018-08-07 | 合肥市市政设计研究总院有限公司 | Municipal road construction and pipelining subregion discharging method are used for above existing tunnel |
| CN110282579A (en) * | 2019-07-05 | 2019-09-27 | 中国建筑第八工程局有限公司 | The Lift-on/Lift-off System and hanging method of prefabricated pipe trench in height-limited small space |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232328A (en) * | 2003-01-30 | 2004-08-19 | Taisei Corp | Structure of semi-precast arch culvert and its construction method |
| JP4303512B2 (en) * | 2003-04-11 | 2009-07-29 | 大成建設株式会社 | Construction method of large section tunnel |
| CN104895111A (en) * | 2015-06-16 | 2015-09-09 | 中建五局土木工程有限公司 | Construction method of integrated pipe trench in soft soil |
| CN105625469A (en) * | 2016-02-06 | 2016-06-01 | 青岛润国生态科技发展有限公司 | Construction method for assembly type prefabricated comprehensive pipe gallery |
| CN105672356A (en) * | 2016-03-25 | 2016-06-15 | 中船第九设计研究院工程有限公司 | Underground structure of municipal pipeline group spanning tunnel and construction method for underground structure |
-
2016
- 2016-08-30 CN CN201610764069.0A patent/CN106245679B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004232328A (en) * | 2003-01-30 | 2004-08-19 | Taisei Corp | Structure of semi-precast arch culvert and its construction method |
| JP4303512B2 (en) * | 2003-04-11 | 2009-07-29 | 大成建設株式会社 | Construction method of large section tunnel |
| CN104895111A (en) * | 2015-06-16 | 2015-09-09 | 中建五局土木工程有限公司 | Construction method of integrated pipe trench in soft soil |
| CN105625469A (en) * | 2016-02-06 | 2016-06-01 | 青岛润国生态科技发展有限公司 | Construction method for assembly type prefabricated comprehensive pipe gallery |
| CN105672356A (en) * | 2016-03-25 | 2016-06-15 | 中船第九设计研究院工程有限公司 | Underground structure of municipal pipeline group spanning tunnel and construction method for underground structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106245679A (en) | 2016-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108397201A (en) | The safe construction method of rock tunnel(ling) machine | |
| CN104775817A (en) | All-negative pressure continuous-mining continuous-filling step-by-step replacement mining method for coal underneath cities and towns, industrial buildings, railways and other buildings | |
| CN106245679B (en) | Across subway shallow embedding open cut zero unloads common pipe trench construction method | |
| CN103321230A (en) | Excavation method for deep and big foundation pit in long-distance crossing field for shallow-buried subway | |
| CN104847364B (en) | A kind of shield continuous cutting pile foundation passes through residential building group construction method | |
| CN107664035A (en) | The construction method of well after shield piping lane elder generation shield | |
| US10486717B2 (en) | Hydro-electric site and method for constructing a penstock | |
| CN111412002B (en) | Construction method of anchor cable opposite-pulling type supporting structure system | |
| CN103993885A (en) | Construction method for underground excavation tunnel side-direction hole opening supporting system | |
| CN109113092A (en) | Construction method is protected in underground large-diameter pipeline original position water flowing | |
| CN203822311U (en) | Advanced detection and pre-reinforcing structure for shield tunnel crossing existing station construction | |
| CN107514262A (en) | The construction method of shield piping lane | |
| CN108193671A (en) | For the weight dangerous region super-large diameter pile foundation drilling construction method of alpine terrain landforms | |
| CN110106867A (en) | Manual digging pile construction method between railcar station track | |
| CN104863183B (en) | Damping pilework and construction method is isolated in large cross-section tunnel proximity architecture construction | |
| CN206785388U (en) | Anchor cable removes system in a kind of tunnel | |
| CN110439011B (en) | Side slope anti-slip supporting structure and construction method thereof | |
| CN109356193B (en) | Prefabricated piping lane propelling movement construction equipment | |
| CN113187507B (en) | Grouting reinforcement method for deformation control of underground excavation tunnel underpass operation subway section | |
| CN202731927U (en) | Tunnel construction device | |
| CN111425664A (en) | Large-diameter concrete pipeline jacking pipe construction method | |
| CN109797717A (en) | The construction method for having subway tunnel is worn on a kind of river | |
| CN205475323U (en) | Municipal administration pipeline crowd stridees across underground structure in tunnel | |
| CN203922510U (en) | A kind of simple and easy cable machine that is arranged in slope | |
| CN208441846U (en) | A kind of vertical shaft shield machine constructed upwards by underground |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Jianguo Inventor after: Zhao Kai Inventor after: Yang Weiguo Inventor after: Li Penghui Inventor after: Huang Li Inventor after: Li Hongxia Inventor after: You Jing Inventor after: Zhu Cunbing Inventor before: Chen Jianguo Inventor before: Zhao Kai Inventor before: Li Penghui Inventor before: Huang Li Inventor before: Li Hongxia Inventor before: You Jing |
|
| CB03 | Change of inventor or designer information |