CN106979023A - The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method - Google Patents
The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method Download PDFInfo
- Publication number
- CN106979023A CN106979023A CN201710364539.9A CN201710364539A CN106979023A CN 106979023 A CN106979023 A CN 106979023A CN 201710364539 A CN201710364539 A CN 201710364539A CN 106979023 A CN106979023 A CN 106979023A
- Authority
- CN
- China
- Prior art keywords
- mould
- end mould
- tunnel
- extension plate
- outboard end
- 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
- 239000004567 concrete Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000010276 construction Methods 0.000 abstract description 21
- 230000000694 effects Effects 0.000 abstract description 12
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000009415 formwork Methods 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000005069 ears Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
Abstract
The invention belongs to Tunnel Engineering secondary lining field, the specifically related to adjustable concrete end mould of Tunnel Second Lining width and its adjusting method, including the medial extremity mould and outboard end mould being hinged, medial extremity mould is connected on chassis body, an extension plate, and radial direction of the relative direction slided along outboard end mould sector are slidably connected on outboard end mould.Can not arbitrarily it be stretched to fix back-adhering waterstop for steel end mould in the prior art, cause the problem of back-adhering waterstop can not play sealing effect, the width of the end mould can be according to the width adjusting between trolley formwork and preliminary bracing face, effectively to fix back-adhering waterstop, its due waterproof effect is reached.Compared to prior art, the beneficial effects of the invention are as follows：The fixation problem of back-adhering waterstop is solved, so as to ensure the reliable of construction quality.Operating efficiency is improved, the duration is substantially reduced.Waste of material is avoided, construction cost is saved.Construction environment security is improved.
Description
Technical field
The invention belongs to Tunnel Engineering secondary lining technical field, in particular it relates to which a kind of Tunnel Second Lining width can
Adjustable type concrete end mould, and its adjusting method.
Background technology
In Tunnel Engineering, surrounding rock supporting is generally divided into preliminary bracing and secondary lining.Secondary lining, refers in tunnel
Under conditions of progress preliminary bracing, the inner lining built with materials such as concrete, to reach its support reinforcement, optimization route, peace
The effect of the facilities such as drainage system, aesthetic appeal, convenient setting communication, illumination, monitoring is filled, to adapt to modernize tunnel construction
It is required that.
Tunnel Second Lining is usually concrete or reinforced concrete structure.Lining trolley is the secondary lining of constructing tunnel process
The special equipment that must be used in block, for the concrete- liner construction to tunnel inner wall.The construction technology of traditional secondary lining cutting is to serve as a contrast
After platform building cart is in place, using wooden end mould by between arch template and preliminary bracing face space block, from bottom to top annular according to
It is secondary to reinforce wooden end mould, then carry out pouring operation.Pour after completion and form removal, wooden end mould is not reaching to recycling, makes
It is serious into waste of material；In addition, wooden end mould is reinforced and form removal work efficiency is low, the activity duration is long, and runs mould seriously, construction quality
It is poor.
At present, for above-mentioned wooden end mould a kind of new secondary lining concreting work is occurred in that in the drawbacks of, industry
Skill is to replace wooden end mould using steel end mould, and steel end mould is divided into outboard end mould and medial extremity mould, and both are mutually cut with scissors by hinge
Connect, buried water stop during crevice place is set.But, it is non-telescoping due to holding the width of mould to fix, and then chassis mould is not adapted to
Change width between plate and preliminary bracing face, outboard end mould can not find stress point, and ultimately resulting in back-adhering waterstop can not have
Effect is reinforced, and sealing effect can not be played by often resulting in back-adhering waterstop damage or embedded concrete, influence waterproof effect.
Tunnel Second Lining circular construction joint waterproof construction quality is the important step of tunnel integral construction quality, and its is direct
Operation security after being related to.The application of above-mentioned steel end mould secondary lining casting craft is not strong, more Tunnel Second Linings
Medial extremity mould is used only in construction, and outboard end mould is still reinforced using traditional wooden end mould.Therefore, the wooden end mould that used in the past and
Fixed type steel end its construction quality of mould construction party decree can not be ensured, circular construction joint is turned into the weak link of percolating water.
The content of the invention
It is an object of the invention to：It can not stretch to fix back-adhering waterstop, lead for steel end mould in the prior art
Causing the problem of back-adhering waterstop can not play sealing effect, there is provided a kind of adjustable concrete end of Tunnel Second Lining width
Mould and its adjusting method, the width of the end mould can be according to the width adjusting between trolley formwork and preliminary bracing face, with effectively solid
Determine back-adhering waterstop, reach its due waterproof effect.
To achieve these goals, the technical solution adopted by the present invention is：
The adjustable concrete end mould of Tunnel Second Lining width, including the medial extremity mould and outboard end mould being hinged,
The medial extremity mould is connected on chassis body, and an extension plate, and the relative side slided are slidably connected on the outboard end mould
To the radial direction along outboard end mould sector.Because preliminary bracing layer Internal periphery out-of-flatness, extension plate can be to the outer of chassis body
Side or interior Slideslip, so that the overall width of end mould can adjust, meet different preliminary bracing slice width degree, different secondary lining cutting wide
Back-adhering waterstop, can be fixed well by the construction demand of degree, realize its due waterproof effect.
As the preferred scheme of the present invention, the concrete structure being slidably connected includes：The elongated hole on extension plate is arranged at,
The fixing axle matched with the elongated hole is provided with the outboard end mould, the fixing axle passes the elongated hole and is arranged nut
Extension plate is fixed on outboard end mould.By unscrewing or tightening nut, elongated hole can be made to be moved relative to fixing axle, and then realized
Hold the width adjusting of mould.
As the preferred scheme of the present invention, in addition to telescope support, the telescope support includes pole and expansion link；It is described
One end of pole is fixed on chassis body, and one end of the other end and expansion link is hinged, the other end of the expansion link and outside
End mould is hinged, and the pole, expansion link and medial extremity mould and outboard end mould surround a triangle.Using chassis as matrix, three are used
Corner structure holds out against outboard end mould, just can complete the reinforcing of end mould and secondary lining chassis.
Further, the expansion link uses flower basket bolt.Using common components, operation is familiar with beneficial to workman, and save
Cost.
As the preferred scheme of the present invention, the medial extremity mould is hinged by hinged ear I with chassis body.Due to end
Mould is generally made of 6mm steel plates, weighs about 25Kg, is mounted and dismounted using traditional bolt, generation of on the one hand easily falling
Danger, on the other hand installs time and effort consuming, influences operating efficiency.Compared to by the way of bolt fixation, be articulated and connected mode
Without dismounting, beneficial to safety in production, and the duration is shortened.
It is buried in being provided between the medial extremity mould and outboard end mould for placing to stop as the preferred scheme of the present invention
The crack of water band, and both are hinged by being arranged on the hinged ear II of crevice place.Medial extremity mould and outboard end mould are using conjunction
Buried water stop during page mode is connected and clamped, installs middle buried water stop straight, smoother, really plays waterproof action.
As the preferred scheme of the present invention, medial extremity mould gusset is provided with the outside of the medial extremity mould.Serve dimension shape
The effect of reinforcing.
As the preferred scheme of the present invention, extension plate gusset is provided with the outside of the extension plate.Dimension shape is served to reinforce
Effect.
The adjusting method of the above-mentioned adjustable concrete end mould of Tunnel Second Lining width, comprises the following steps：
First, the nut is unscrewed；
2nd, protrude upward or shorten the extension plate downwards, extension plate is pushed against back-adhering waterstop, by back sticking type sealing
Band is fixed between extension plate and preliminary bracing layer；
3rd, the nut is screwed.
Above method is simple to operate, the easy left-hand seat of workman, it is possible to increase integral construction progress.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, the width of end mould can adjust, and the fixation problem of back-adhering waterstop thoroughly be solved, so as to ensure construction matter
That measures is reliable, while having very strong dissemination.
2nd, operating efficiency is improved, the installation and removal efficiency of secondary lining end mould is effectively lifted, and substantially reduces the duration.
3rd, waste of material is avoided, construction cost is saved.
4th, construction environment security is improved, and is homogeneously connected between each part, in the absence of stand-alone component, no falling risk.
Brief description of the drawings
Fig. 1 is the side section schematic diagram of the present invention.
Fig. 2 is the schematic front view of the present invention.
Fig. 3 is the application schematic diagram of the present invention.
The corresponding component names are marked to be in accompanying drawing：In A- preliminary bracings layer, B- secondary linings layer, C- chassis bodies, D-
Buried water stop, E- back-adhering waterstops；1- medial extremity moulds, 11- hinged ears I, 12- medial extremity mould gussets；2- outboard end moulds,
21- fixing axles, 22- hinged ears II；3- telescope supports, 31- poles, 32- expansion links；4- extension plates, 41- elongated holes, 42- extension plates
Gusset.
Embodiment
Below in conjunction with the accompanying drawings, the present invention is described in detail.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, not
For limiting the present invention.
Embodiment 1
The adjustable concrete end mould of Tunnel Second Lining width, specifically, as shown in Figure 1, 2, including be hinged
Medial extremity mould 1 and outboard end mould 2, the medial extremity mould 1 are connected on chassis body C, it is characterised in that：The outboard end mould 2
On slidably connect extension plate 4, and the relative direction slided is along the fan-shaped radial direction of outboard end mould 2.
The concrete structure being slidably connected includes：It is arranged on the elongated hole 41 on extension plate 4, the outboard end mould 2 and sets
The fixing axle 21 matched with the elongated hole 41 is equipped with, the fixing axle 21 passes the elongated hole 11 and is arranged nut by extension plate
4 are fixed on outboard end mould 2.
Also include telescope support 3, the telescope support 3 includes pole 31 and expansion link 32；One end of the pole 31 is consolidated
Due on chassis body C, one end of the other end and expansion link 32 is hinged, and the other end and the outboard end mould 2 of the expansion link 32 are cut with scissors
Connect, the pole 31, expansion link 32 and medial extremity mould 1 and outboard end mould 2 surround a triangle.The expansion link 32 is gaily decorated basket spiral shell
Bolt.
The medial extremity mould 1 is hinged by hinged ear I 11 with chassis body C.
The crack for buried water stop D in placement, and both are provided between the medial extremity mould 1 and outboard end mould 2
It is hinged by the hinged ear II 22 for being arranged on crevice place.
The outside of the medial extremity mould 1 is provided with medial extremity mould gusset 12.The outside of the extension plate 4 is provided with extension plate
Gusset 42.
The adjusting method of the adjustable concrete end mould of Tunnel Second Lining width, comprises the following steps：
First, the nut is unscrewed；
2nd, protrude upward or shorten the extension plate 4 downwards, extension plate 4 is pushed against back-adhering waterstop E, by back sticking type
Waterstop E is fixed between extension plate 4 and preliminary bracing layer A；
3rd, the nut is screwed.
Next it can be carried out pouring operation, as shown in figure 1, according to the waterproof requirement of construction unit, secondary lining layer B
Junction between each construction section, must set back-adhering waterstop E, Yi Ji between secondary lining layer B and preliminary bracing layer A
Buried water stop in being set in the middle part of secondary lining layer B.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (9)
1. the adjustable concrete end mould of Tunnel Second Lining width, including the medial extremity mould (1) and outboard end mould being hinged
(2), the medial extremity mould (1) is connected on chassis body (C), it is characterised in that：Slidably connected on the outboard end mould (2)
One extension plate (4), and radial direction of the relative direction slided along outboard end mould (2) sector.
2. the adjustable concrete end mould of Tunnel Second Lining width according to claim 1, it is characterised in that the cunning
The concrete structure of dynamic connection includes：It is arranged on the elongated hole (41) on extension plate (4), the outboard end mould (2) and is provided with and institute
The fixing axle (21) that elongated hole (41) matches is stated, the fixing axle (21) passes the elongated hole (11) and is arranged nut by extension plate
(4) it is fixed on outboard end mould (2).
3. the adjustable concrete end mould of Tunnel Second Lining width according to claim 2, it is characterised in that：Also include
Telescope support (3), the telescope support (3) includes pole (31) and expansion link (32)；One end of the pole (31) is fixed on
On chassis body (C), the other end and the one end of expansion link (32) are hinged, the other end and the outboard end mould of the expansion link (32)
(2) it is hinged, the pole (31), expansion link (32) and medial extremity mould (1) and outboard end mould (2) surround a triangle.
4. the adjustable concrete end mould of Tunnel Second Lining width according to claim 3, it is characterised in that：It is described to stretch
Contracting bar (32) is flower basket bolt.
5. the adjustable concrete end mould of Tunnel Second Lining width according to claim 1, it is characterised in that：In described
Side mould (1) is hinged by hinged ear I (11) with chassis body (C).
6. the adjustable concrete end mould of Tunnel Second Lining width according to claim 1, it is characterised in that：In described
The crack of buried water stop (D) in being provided between side mould (1) and outboard end mould (2) for placing, and both are by setting
It is hinged in the hinged ear II (22) of crevice place.
7. the adjustable concrete end mould of Tunnel Second Lining width according to claim 1, it is characterised in that：In described
Medial extremity mould gusset (12) is provided with the outside of side mould (1).
8. the adjustable concrete end mould of Tunnel Second Lining width according to claim 1, it is characterised in that：It is described to prolong
Extension plate gusset (42) is provided with the outside of long slab (4).
9. the adjusting method of the adjustable concrete end mould of Tunnel Second Lining width according to claim 2, its feature
It is, comprises the following steps：
First, the nut is unscrewed；
2nd, protrude upward or shorten the extension plate (4) downwards, extension plate (4) is pushed against back-adhering waterstop (E), the back of the body is pasted
Formula waterstop (E) is fixed between extension plate (4) and preliminary bracing layer (A)；
3rd, the nut is screwed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364539.9A CN106979023A (en) | 2017-05-22 | 2017-05-22 | The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710364539.9A CN106979023A (en) | 2017-05-22 | 2017-05-22 | The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106979023A true CN106979023A (en) | 2017-07-25 |
Family
ID=59342585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710364539.9A Pending CN106979023A (en) | 2017-05-22 | 2017-05-22 | The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106979023A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019223A (en) * | 2017-11-28 | 2018-05-11 | 中国水利水电第五工程局有限公司 | One kind two serves as a contrast plug steel end mould |
| CN111764936A (en) * | 2020-07-08 | 2020-10-13 | 中铁二十局集团有限公司 | Plugging and reinforcing device for lining end die |
| CN114320366A (en) * | 2021-12-31 | 2022-04-12 | 李经国 | Semi-automatic lining trolley for tunnel and method for pouring lining in tunnel bin by bin |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002031316A2 (en) * | 2000-10-10 | 2002-04-18 | Robert Planinc | Tunnel lining made of prefabricated reinforced concrete elements and process for its manufacturing and installing |
| JP2005179891A (en) * | 2003-12-16 | 2005-07-07 | Kfc Ltd | Construction method of tunnel lining concrete |
| JP2009228391A (en) * | 2008-03-25 | 2009-10-08 | Ohbayashi Corp | Tunnel construction method, inner mold, tunnel lining body, and tunnel structure |
| CN202441391U (en) * | 2012-02-28 | 2012-09-19 | 中铁十二局集团有限公司 | End template device for mounting waterstop in tunnel secondary lining concrete |
| CN202731936U (en) * | 2012-08-15 | 2013-02-13 | 中铁十九局集团第二工程有限公司 | Tunnel inverted arch end mold |
| CN103775105A (en) * | 2014-02-20 | 2014-05-07 | 中铁十局集团第三建设有限公司 | Double hinge joint turnover type tunnel lining trolley steel end mold |
| CN205243526U (en) * | 2015-12-22 | 2016-05-18 | 中铁十二局集团有限公司 | Two hinge ear structure tunnel secondary lining end mould construction installation equipment |
| CN206830196U (en) * | 2017-05-22 | 2018-01-02 | 中铁二局集团有限公司 | The adjustable concrete end mould of Tunnel Second Lining width |
-
2017
- 2017-05-22 CN CN201710364539.9A patent/CN106979023A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002031316A2 (en) * | 2000-10-10 | 2002-04-18 | Robert Planinc | Tunnel lining made of prefabricated reinforced concrete elements and process for its manufacturing and installing |
| JP2005179891A (en) * | 2003-12-16 | 2005-07-07 | Kfc Ltd | Construction method of tunnel lining concrete |
| JP2009228391A (en) * | 2008-03-25 | 2009-10-08 | Ohbayashi Corp | Tunnel construction method, inner mold, tunnel lining body, and tunnel structure |
| CN202441391U (en) * | 2012-02-28 | 2012-09-19 | 中铁十二局集团有限公司 | End template device for mounting waterstop in tunnel secondary lining concrete |
| CN202731936U (en) * | 2012-08-15 | 2013-02-13 | 中铁十九局集团第二工程有限公司 | Tunnel inverted arch end mold |
| CN103775105A (en) * | 2014-02-20 | 2014-05-07 | 中铁十局集团第三建设有限公司 | Double hinge joint turnover type tunnel lining trolley steel end mold |
| CN205243526U (en) * | 2015-12-22 | 2016-05-18 | 中铁十二局集团有限公司 | Two hinge ear structure tunnel secondary lining end mould construction installation equipment |
| CN206830196U (en) * | 2017-05-22 | 2018-01-02 | 中铁二局集团有限公司 | The adjustable concrete end mould of Tunnel Second Lining width |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108019223A (en) * | 2017-11-28 | 2018-05-11 | 中国水利水电第五工程局有限公司 | One kind two serves as a contrast plug steel end mould |
| CN111764936A (en) * | 2020-07-08 | 2020-10-13 | 中铁二十局集团有限公司 | Plugging and reinforcing device for lining end die |
| CN114320366A (en) * | 2021-12-31 | 2022-04-12 | 李经国 | Semi-automatic lining trolley for tunnel and method for pouring lining in tunnel bin by bin |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207109856U (en) | Piping lane, culvert construction hydraulic steel formwork jumbo | |
| CN105386778B (en) | Tunnel excavation lining construction chassis and tunnel excavation lining construction method | |
| CN107130791A (en) | Combining aluminum alloy mould plate is used for the construction method of assembly concrete precast construction | |
| CN205935641U (en) | Template formwork system of aluminum alloy shear force wall | |
| CN104763446B (en) | The multi-functional chassis of metro station construction | |
| CN104234723B (en) | A kind of open trench tunnel square-section self-propelled mobile falsework chassis | |
| CN103437791B (en) | The mounting method of buried water stop in a kind of tunnel lining trolley termination | |
| CN206830196U (en) | The adjustable concrete end mould of Tunnel Second Lining width | |
| CN106979023A (en) | The adjustable concrete end mould of Tunnel Second Lining width and its adjusting method | |
| CN105350454A (en) | Steel arch rib outer wrapped concrete construction method for steel trussed arch bridge | |
| CN106193588A (en) | A kind of method pouring building post-cast strip and pour mould | |
| CN202900288U (en) | Steel section skeleton combined structure of tunnel minor radius section lining pouring | |
| CN107313787A (en) | A kind of tunnel lining trolley end mould and construction method | |
| CN204983649U (en) | Big inclination cylinder steel form | |
| CN110924323A (en) | Culvert template trolley | |
| CN104895582B (en) | A kind of integral mold plate concrete constructions method of double track tunnel ditch cable trench | |
| CN205976472U (en) | Pour mould of building post -cast strip | |
| CN108396961B (en) | Construction joint formwork erection method between a kind of dual wall | |
| CN205654082U (en) | Half tunnel formwork | |
| CN109653770A (en) | A kind of middle board construction method carried out using original temporary support | |
| CN205243526U (en) | Two hinge ear structure tunnel secondary lining end mould construction installation equipment | |
| CN212406110U (en) | Structure for pouring concrete beam post-cast strip by adopting inflatable template | |
| CN108979133B (en) | Dense rib floor mold and use method thereof | |
| CN104453235B (en) | Current conversion station fire wall construction technology | |
| CN112878462A (en) | Construction method of circular inspection well template |
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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Applicant after: China Railway Second Bureau Construction Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Applicant before: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190801 Address after: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Applicant after: CHINA RAILWAY NO.2 ENGINEERING GROUP Co.,Ltd. Address before: Jinniu District Kam Tong Road Chengdu city Sichuan province 610031 No. 16 Applicant before: China Railway Second Bureau Construction Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |