CN109854279A - A kind of constructing tunnel die plate equipment and constructing operation method - Google Patents
A kind of constructing tunnel die plate equipment and constructing operation method Download PDFInfo
- Publication number
- CN109854279A CN109854279A CN201910156757.2A CN201910156757A CN109854279A CN 109854279 A CN109854279 A CN 109854279A CN 201910156757 A CN201910156757 A CN 201910156757A CN 109854279 A CN109854279 A CN 109854279A
- Authority
- CN
- China
- Prior art keywords
- template
- vertical
- walking
- side template
- jack assembly
- 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.)
- Pending
Links
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a kind of constructing tunnel die plate equipment and constructing operation methods, including template system, rail system, walking and supporting mechanism；Template system is covered on walking and supporting mechanism, and walking and supporting mechanism are supported on rail system.The template system includes top template, the first side template, the second side template and end template；Top template, the first side template, the second side template and end template are respectively multiple groups；End template is located at the bottom of template system, and the upper edge of end template is flexibly connected with the lower edge of the second side template, and the upper edge of the second side template is flexibly connected with the lower edge of the first side template, and the upper edge of the first side template is flexibly connected with top template edge.This patent construction high degree of automation, short construction period, precision controllability are high.The configuration of the present invention is simple, easy to operate, implementation cost is low and using safe.
Description
Technical field
The present invention relates to constructing tunnel fields, are specifically a kind of constructing tunnel die plate equipment and constructing operation method.
Background technique
It needs to use constructing tunnel template when constructing tunnel to be supported tunnel internal, constructing tunnel template is in entire tunnel
Vital supporting role is played in road construction, the constructing tunnel template of better performances can reduce the generation of accident, add
The time of completion of fast entire engineering.However displacement control when traditional constructing tunnel template arch trolley mechanism walking or fixation
System, is the technological difficulties of constructing tunnel, for the dynamic change error generated after track installation, race fixed error of walking, with
And the balance error that arch trolley mechanism occurs is not easy to realize process control and control when arch trolley walks or is fixed.
If not in time to the control of arch trolley displacement, during will cause construction operation, calibrating time-consuming and laborious, work in the process
Effect is low, and ultimately causes arch wall molding construction quality and be difficult to ensure.
It is found by retrieval, a kind of constructing tunnel template arch platform of the disclosure of the invention of patent No. CN201510241605.4
Vehicle guiding ruler localization method, the direction of advance in tunneling construction tunnel, requires according to technique, parallel with the middle line in tunneling construction tunnel
Symmetrical determination need to install the parallel position line of guiding ruler, several piling bars be laid on the position line, then fix piling bar using angle steel and join
It connects, forms constructing tunnel template arch trolley and position guiding ruler；In the arranged on left and right sides of template arch trolley, installation calibrating is set and is connect
Contact determines position of the template arch platform in tunneling construction tunnel by the gap between the calibration contact point and positioning guiding ruler
It sets.
The utility model of patent No. CN201720018511.5 discloses constructing tunnel template vehicle, belongs to constructing tunnel dress
The technical field set solves the problems, such as that existing tunnel form the degree of automation of constructing is low.Constructing tunnel template vehicle, including vehicle
Frame and template, template include side template and top template, and all around formwork assembling and disassembling mechanism, institute is arranged in four sides to vehicle frame
The formwork assembling and disassembling mechanism stated includes link and jack, positional cylinder and elevating ram, the hinged side in the extension end of positional cylinder
Template, the extension end connection top template of elevating ram, oil inlet and outlet connect fuel tank, have ram control valve, mould on connecting line
Temperature sensor is set on plate, and the hinged end of positional cylinder and side template is provided with angular transducer, elevating ram and He Ding
Portion's connection part of templates is provided with displacement sensor.
Constructing tunnel template needs trolley that template is transported to the support place of construction in constructing tunnel, due to support of tunnel
Template can cause support shuttering to be subjected to displacement in support because of tunnel local deformation, and the support shuttering being subjected to displacement will affect
The normal construction of tunnel internal can also injure staff when serious, so needing to carry out constructing tunnel template more firm
Fixation, traditional constructing tunnel fixing templates when template is fixed be mostly be welded connection, once at soldering opening
It is broken, it is ineffective to will lead to entirely to fix device, causes irremediable loss, affects the smooth of constructing tunnel
Carry out, and the template width constructed is not necessarily identical, and at present most of fixed device all cannot according to the width of template into
Row is adjusted, therefore needs to study a kind of new constructing tunnel fixing templates.However, existing constructing tunnel template assembling and disassembling
The degree of automation is low, and the ingredient manually participated in is larger, and precision is not easy to meet design requirement, and labor intensity is larger.
Summary of the invention
Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of constructing tunnel die plate equipment and constructing operation side herein
Method.This patent construction high degree of automation, short construction period, precision controllability are high.The configuration of the present invention is simple, it is easy to operate, it is real
It applies at low cost and uses safe.
The invention is realized in this way constructing a kind of constructing tunnel die plate equipment, it is characterised in that: including template system,
Rail system, walking and supporting mechanism；Template system is covered on walking and supporting mechanism, and walking and supporting mechanism are supported in rail
In road system.
A kind of constructing tunnel die plate equipment according to the present invention, it is characterised in that: the template system include top template,
First side template, the second side template and end template；Top template, the first side template, the second side template and end template are respectively multiple groups；
End template is located at the bottom of template system, and the upper edge of end template is flexibly connected with the lower edge of the second side template, second side
The upper edge of template is flexibly connected with the lower edge of the first side template, and the upper edge of the first side template and the activity of top template edge connect
It connects；
Rail system is laid on road surface；
Walking and supporting mechanism include support beam, support stringer, vertical external support beam, vertical interior support posts, traveling wheel
Component, vertical lifting mechanism, stainless steel vertical supporting frame, stainless steel horizontal shore, the first jack assembly, the second jack
Component, third jack assembly；
Support beam and support stringer are respectively two groups, are bolted respectively integral, and the lower end of support beam passes through spiral shell
Bolt is fixed with vertical external support beam, forms the main body of the walking and supporting mechanism；Vertical external support beam is set in vertical
Portion's upper end of support column, the upper end of vertical lifting mechanism are connect with vertical external support beam, and lower end is fixed with vertical interior support posts,
Realize that the whole of vertical external support beam is promoted and decline by vertical lifting mechanism；Walking wheel assembly is mounted on vertical internal support
The bottom end of column, the walking and supporting mechanism are by traveling wheel modular support on rail system；
Stainless steel vertical supporting frame is two groups, is bolted on support stringer upper surface, stainless steel horizontal shore respectively
It is bolted between support stringer respectively；The top of two groups of stainless steel vertical supporting framves is fixed between top template；The
One end of one jack assembly is connect with the upper end of stainless steel vertical supporting frame, and the other end is connect with the first side template,
One end of second jack assembly and the outside of support stringer connect, and the other end is connect with the second side template,
One end of third jack assembly and the bottom side of support stringer connect, and the other end is connect with end template.
A kind of constructing tunnel die plate equipment constructing operation method, it is characterised in that: be carried out as follows；
(1) first rail system is laid on road surface, above structure assembling walking and supporting mechanism (6) is then installed, and install
Good template system；
(2) when tunnel pours, it will be walked by walking wheel assembly and supporting mechanism drives at Specific construction position；Then it controls
The work of vertical lifting mechanism realizes that the whole of vertical external support beam is promoted by vertical lifting mechanism；Then first is controlled respectively
Jack assembly, the second jack assembly, the work of third jack assembly, by the first side template, the second side template and end template
Outward ejection, after template in place afterwards carry out tunnel pour；
(3) after the completion of tunnel pours, the first jack assembly, the second jack assembly, third jack group are then controlled respectively
Part work, the first side template, the second side template and end template are inwardly recycled, and the work of vertical lifting mechanism are then controlled, by erecting
To hoisting mechanism by the entire lowering of vertical external support beam.
The present invention has the advantage that the present invention provides a kind of constructing tunnel die plate equipment by improving herein, and it is existing
Same type equipment is compared, have the advantages that as follows improve and；Including template system, rail system, walking and supporting mechanism；Template system
System is covered on walking and supporting mechanism, and walking and supporting mechanism are supported on rail system.The template system includes backform
Plate, the first side template, the second side template and end template；Top template, the first side template, the second side template and end template are respectively more
Group；End template is located at the bottom of template system, and the upper edge of end template is flexibly connected with the lower edge of the second side template, and second
The upper edge of side template is flexibly connected with the lower edge of the first side template, the upper edge of the first side template and the activity of top template edge
Connection.
Implementation operation is carried out as follows after improvement；(1) first rail system is laid on road surface, is then installed
Structure assembling walking and supporting mechanism are stated, and installs template system；(2) it when tunnel pours, will be walked by walking wheel assembly
And supporting mechanism drives at Specific construction position；Then control vertical lifting mechanism work is realized perpendicular by vertical lifting mechanism
It is promoted to the entirety of external supporting beam；Then the first jack assembly, the second jack assembly, third jack group are controlled respectively
Part work, the first side template, the second side template and end template are ejected outward, after template in place afterwards carry out tunnel pour；(3) tunnel
After the completion of road pours, the first jack assembly, the second jack assembly, the work of third jack assembly are then controlled respectively, it will
First side template, the second side template and end template inwardly recycle, and the work of vertical lifting mechanism are then controlled, by vertical lifting mechanism
By the entire lowering of vertical external support beam.
In summary, this patent construction high degree of automation, short construction period, precision controllability are high.Structure of the invention letter
Single, easy to operate, implementation cost is low and using safe.
Detailed description of the invention
Fig. 1 is overall structure implementation diagram of the present invention；
Fig. 2 is overall structure front of the present invention implementation diagram；
Fig. 3 is overall structure side of the present invention implementation diagram；
Fig. 4 is present invention walking and supporting mechanism implementation diagram.
Specific embodiment
Below in conjunction with attached drawing 1- Fig. 4, the present invention is described in detail, technical solution in the embodiment of the present invention into
Row clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of constructing tunnel die plate equipment by improving herein, can be practiced as follows；
Including template system, rail system 5, walking and supporting mechanism 6；Template system is covered on walking and supporting mechanism 6, walking and
Supporting mechanism 6 is supported on rail system 5.
A kind of constructing tunnel die plate equipment of the present invention, the template system include top template 1, the first side template 2,
Two side templates 3 and end template 4；Top template 1, the first side template 2, the second side template 3 and end template 4 are respectively multiple groups；End template 4
Positioned at the bottom of template system, the upper edge of end template 4 is flexibly connected with the lower edge of the second side template 3, the second side template 3
Upper edge be flexibly connected with the lower edge of the first side template 2, the upper edge of the first side template 2 and 1 edge activity of top template connect
It connects；
Rail system 5 is laid on road surface；
Walking and supporting mechanism 6 include support beam 7, support stringer 8, vertical external support beam 9, vertical interior support posts 10,
Walking wheel assembly 11, vertical lifting mechanism 12, stainless steel vertical supporting frame 13, stainless steel horizontal shore 14, the first jack
Component 15, the second jack assembly 16, third jack assembly 17；
Support beam 7 and support stringer 8 are respectively two groups, are bolted respectively integral, and the lower end of support beam 7 passes through
Bolt and vertical external support beam 9 are fixed, form the main body of the walking and supporting mechanism 6；Vertical external support beam 9 is set on perpendicular
Internally 10 upper end of support column, the upper end of vertical lifting mechanism 12 are connect with vertical external support beam 9, lower end and vertical internal branch
Dagger 10 is fixed, realizes that the whole of vertical external support beam 9 is promoted and decline by vertical lifting mechanism 12；Wheel assembly 11 of walking is pacified
Mounted in the bottom end of vertical interior support posts 10, the walking and supporting mechanism 6 pass through wheel assembly 11 of walking and are supported on rail system 5
On；
Stainless steel vertical supporting frame 13 is two groups, is bolted on 8 upper surface of support stringer respectively, stainless steel is horizontally-supported
Frame 14 is bolted on respectively between support stringer 8；Two groups of stainless steel vertical supporting framves 13 are fixed between top template 1
Top；One end of first jack assembly 15 is connect with the upper end of stainless steel vertical supporting frame 13, the other end and the first side template 2
Connection,
One end of second jack assembly 16 is connect with the outside of support stringer 8, and the other end is connect with the second side template 3,
One end of third jack assembly 17 is connect with the bottom side of support stringer 8, and the other end is connect with end template 4.
3, a kind of constructing tunnel die plate equipment constructing operation method, it is characterised in that: be carried out as follows；
(1) first rail system 5 is laid on road surface, then above structure assembling walking and supporting mechanism 6 is installed, and install
Template system；
(2) when tunnel pours, it will be walked by walking wheel assembly 11 and supporting mechanism 6 drives at Specific construction position；Then
It controls vertical lifting mechanism 12 to work, realizes that the whole of vertical external support beam 9 is promoted by vertical lifting mechanism 12；Then distinguish
It controls the first jack assembly 15, the second jack assembly 16, third jack assembly 17 to work, by the first side template 2, second
Side template 3 and end template 4 eject outward, after template in place afterwards carry out tunnel and pour；
(3) after the completion of tunnel pours, it is very heavy that the first jack assembly 15, the second jack assembly 16, third are then controlled respectively
Top component 17 works, and the first side template 2, the second side template 3 and end template 4 are inwardly recycled, vertical lifting mechanism is then controlled
12 work, by vertical lifting mechanism 12 by the entire lowering of vertical external support beam 9.
In summary, this patent construction high degree of automation, short construction period, precision controllability are high.Structure of the invention letter
Single, easy to operate, implementation cost is low and using safe.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It 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 one
The widest scope of cause.
Claims (3)
1. a kind of constructing tunnel die plate equipment, it is characterised in that: including template system, rail system (5), walking and supporting mechanism
(6)；Template system is covered on walking and supporting mechanism (6), and walking and supporting mechanism (6) are supported on rail system (5).
2. a kind of constructing tunnel die plate equipment according to claim 1, it is characterised in that: the template system includes top template
(1), the first side template (2), the second side template (3) and end template (4)；Top template (1), the first side template (2), the second side template
(3) and end template (4) is respectively multiple groups；End template (4) is located at the bottom of template system, the upper edge of end template (4) and the
The lower edge of two side templates (3) is flexibly connected, the lower edge activity of the upper edge and the first side template (2) of the second side template (3)
Connection, the upper edge of the first side template (2) is flexibly connected with top template (1) edge；
Rail system (5) is laid on road surface；
Walking and supporting mechanism (6) include support beam (7), support stringer (8), vertical external support beam (9), vertical internal branch
Dagger (10), walking wheel assembly (11), vertical lifting mechanism (12), stainless steel vertical supporting frame (13), stainless steel are horizontally-supported
Frame (14), the first jack assembly (15), the second jack assembly (16), third jack assembly (17)；
Support beam (7) and support stringer (8) are respectively two groups, be bolted respectively it is integral, under support beam (7)
End is fixed by bolt and vertical external support beam (9), forms the main body of the walking and supporting mechanism (6)；Vertical external support
Beam (9) is set on vertical interior support posts (10) upper end, and the upper end of vertical lifting mechanism (12) and vertical external support beam (9) are even
It connects, lower end and vertical interior support posts (10) are fixed, and the entirety of vertical external support beam (9) is realized by vertical lifting mechanism (12)
It is promoted and is declined；Walking wheel assembly (11) is mounted on the bottom end of vertical interior support posts (10), and the walking and supporting mechanism (6) are logical
Walking wheel assembly (11) is crossed to be supported on rail system (5)；
Stainless steel vertical supporting frame (13) is two groups, is bolted on support stringer (8) upper surface respectively, and stainless steel is horizontal
Support frame (14) is bolted on respectively between support stringer (8)；It is vertical that two groups of stainless steels are fixed between top template (1)
The top of support frame (13)；One end of first jack assembly (15) is connect with the upper end of stainless steel vertical supporting frame (13), separately
One end is connect with the first side template (2),
One end of second jack assembly (16) is connect with the outside of support stringer (8), and the other end and the second side template (3) are even
It connects；
One end of third jack assembly (17) is connect with the bottom side of support stringer (8), and the other end is connect with end template (4).
3. a kind of constructing tunnel die plate equipment constructing operation method, it is characterised in that: be carried out as follows；
(1) first rail system (5) is laid on road surface, above structure assembling walking and supporting mechanism (6) is then installed, and pacify
Install template system；
(2) when tunnel pours, it will be walked by walking wheel assembly (11) and supporting mechanism (6) drives at Specific construction position；
Then control vertical lifting mechanism (12) work realizes that the entirety of vertical external support beam (9) mentions by vertical lifting mechanism (12)
It rises；Then the first jack assembly (15), the second jack assembly (16), third jack assembly (17) work are controlled respectively,
First side template (2), the second side template (3) and end template (4) are ejected outward, after template in place afterwards carry out tunnel and pour；
(3) after the completion of tunnel pours, the first jack assembly (15), the second jack assembly (16), third are then controlled respectively
First side template (2), the second side template (3) and end template (4) are inwardly recycled, are then controlled by jack assembly (17) work
Vertical lifting mechanism (12) work, by vertical lifting mechanism (12) by the entire lowering of vertical external support beam (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156757.2A CN109854279A (en) | 2019-03-01 | 2019-03-01 | A kind of constructing tunnel die plate equipment and constructing operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910156757.2A CN109854279A (en) | 2019-03-01 | 2019-03-01 | A kind of constructing tunnel die plate equipment and constructing operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109854279A true CN109854279A (en) | 2019-06-07 |
Family
ID=66899623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910156757.2A Pending CN109854279A (en) | 2019-03-01 | 2019-03-01 | A kind of constructing tunnel die plate equipment and constructing operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854279A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483138A (en) * | 2020-11-19 | 2021-03-12 | 河北建筑工程学院 | H-shaped large-section tunnel supporting device and supporting method thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH428829A (en) * | 1965-12-03 | 1967-01-31 | Ironflex Ag | Process for lining tunnels, pressure tunnels and manholes in sections with concrete |
| SU1317140A1 (en) * | 1985-12-20 | 1987-06-15 | Свердловский горный институт им.В.В.Вахрушева | Movable forms for concrete horizontal underground workings |
| CN1858404A (en) * | 2006-05-24 | 2006-11-08 | 杨秋利 | Full automatic hydraulic lining trolley |
| CN101230785A (en) * | 2008-02-22 | 2008-07-30 | 中铁二局股份有限公司 | Construction method for large section and multiple sections tunnel lining |
| CN201486572U (en) * | 2009-08-05 | 2010-05-26 | 中交隧道工程局有限公司 | Multi-reducing lining mould plate trolley |
| EP2472057A2 (en) * | 2011-01-04 | 2012-07-04 | PERI, S.A. Sociedad Unipersonal | Formwork for concreting the inner lining of tunnels |
| CN102691509A (en) * | 2012-05-31 | 2012-09-26 | 中煤第五建设有限公司 | Trolley for roadway concrete construction and construction method |
| CN104453951A (en) * | 2014-12-30 | 2015-03-25 | 中铁一局集团有限公司 | Combined lining formwork trolley for subway station |
| CN108798709A (en) * | 2017-04-27 | 2018-11-13 | 湖南五新隧道智能装备股份有限公司 | Placement layer by layer material distributing machine and lining trolley comprising this material distributing machine |
-
2019
- 2019-03-01 CN CN201910156757.2A patent/CN109854279A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH428829A (en) * | 1965-12-03 | 1967-01-31 | Ironflex Ag | Process for lining tunnels, pressure tunnels and manholes in sections with concrete |
| SU1317140A1 (en) * | 1985-12-20 | 1987-06-15 | Свердловский горный институт им.В.В.Вахрушева | Movable forms for concrete horizontal underground workings |
| CN1858404A (en) * | 2006-05-24 | 2006-11-08 | 杨秋利 | Full automatic hydraulic lining trolley |
| CN101230785A (en) * | 2008-02-22 | 2008-07-30 | 中铁二局股份有限公司 | Construction method for large section and multiple sections tunnel lining |
| CN201486572U (en) * | 2009-08-05 | 2010-05-26 | 中交隧道工程局有限公司 | Multi-reducing lining mould plate trolley |
| EP2472057A2 (en) * | 2011-01-04 | 2012-07-04 | PERI, S.A. Sociedad Unipersonal | Formwork for concreting the inner lining of tunnels |
| CN102691509A (en) * | 2012-05-31 | 2012-09-26 | 中煤第五建设有限公司 | Trolley for roadway concrete construction and construction method |
| CN104453951A (en) * | 2014-12-30 | 2015-03-25 | 中铁一局集团有限公司 | Combined lining formwork trolley for subway station |
| CN108798709A (en) * | 2017-04-27 | 2018-11-13 | 湖南五新隧道智能装备股份有限公司 | Placement layer by layer material distributing machine and lining trolley comprising this material distributing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483138A (en) * | 2020-11-19 | 2021-03-12 | 河北建筑工程学院 | H-shaped large-section tunnel supporting device and supporting method thereof |
| CN112483138B (en) * | 2020-11-19 | 2023-10-20 | 河北建筑工程学院 | H-shaped large-section tunnel supporting device and supporting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103452052B (en) | Movable mold hanging equipment for closing swivel bridges and closure section construction method | |
| CN201074517Y (en) | Broaden tunnel lining bogie | |
| CN104831632B (en) | A kind of bridge cable tower entablature and sill construction method | |
| CN105350454A (en) | Steel arch rib outer wrapped concrete construction method for steel trussed arch bridge | |
| CN109236330A (en) | A kind of lining trolley | |
| CN104070316A (en) | Welding H-shaped steel splicing assembly device and use method thereof | |
| CN209063283U (en) | Highway prefabricated case beam makes traversing platform | |
| CN109707146A (en) | Simple overhanging type slides scaffold construction method | |
| CN109854279A (en) | A kind of constructing tunnel die plate equipment and constructing operation method | |
| CN207714108U (en) | A kind of support system of the more arcading arched aqueducts of large span or bridge | |
| CN205100119U (en) | Steel form device in self -propelled | |
| CN110258294A (en) | Steel truss arch bridge installs system and its construction method | |
| CN205999789U (en) | Cable-stayed bridge beams of concrete cable guide pipe supporting and positioning device | |
| CN208844612U (en) | A kind of stalk vaulted type open trench tunnel main body construction mobile formwork | |
| CN104500106B (en) | A kind of tunnel inverted arch construction mould bases and tunnel inverted arch construction technology | |
| CN106738308A (en) | Precast T-Beam reinforcing bar molding bed rack system | |
| CN113982100B (en) | Overall sliding installation method for steel gallery in complex environment | |
| CN217327341U (en) | Self-propelled long-span variable cross-section hydraulic formwork trolley | |
| CN207111113U (en) | A kind of chassis for anchor section entirety lining cutting | |
| CN208023608U (en) | A kind of post-cast strip can have enough to meet the need steel channel formwork system | |
| CN108098979A (en) | A kind of PK sections concrete box girder precast segment template | |
| CN205422781U (en) | Single track handling tail becomes first formula advance support system | |
| CN110284904A (en) | A kind of lining trolley and its construction method | |
| CN208831016U (en) | A kind of novel portal-framed structure for two lining trolleys | |
| CN110424986A (en) | A kind of improved tunnel lining trolley of structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190607 |
|
| RJ01 | Rejection of invention patent application after publication |