CN114658447A - Tunnel inverted arch construction die carrier structure - Google Patents
Tunnel inverted arch construction die carrier structure Download PDFInfo
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- CN114658447A CN114658447A CN202210324766.XA CN202210324766A CN114658447A CN 114658447 A CN114658447 A CN 114658447A CN 202210324766 A CN202210324766 A CN 202210324766A CN 114658447 A CN114658447 A CN 114658447A
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- 238000010276 construction Methods 0.000 title claims abstract description 70
- 238000009415 formwork Methods 0.000 claims abstract description 94
- 230000002787 reinforcement Effects 0.000 claims description 30
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 24
- 238000005266 casting Methods 0.000 claims description 13
- 238000004873 anchoring Methods 0.000 claims description 4
- 239000011435 rock Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a tunnel inverted arch construction formwork structure which comprises an inverted arch middle section, a filling side formwork and an inverted arch formwork, wherein a first end of the inverted arch formwork is connected with a first side end of the inverted arch middle section; the first end of the filling side template is connected with the connecting part of the inverted arch template and the inverted arch middle section, and the filling side template and the inverted arch template are connected into a whole; and the first end of the filling side template is respectively communicated with the first end of the inverted arch template and the first side end of the inverted arch middle section. The technical scheme of the invention can ensure the pouring construction quality and improve the construction efficiency.
Description
Technical Field
The invention relates to the technical field of tunnel inverted arch structures, in particular to a tunnel inverted arch construction formwork structure.
Background
In recent years, many collapse accidents happen in the tunnel construction process at home and abroad, and great casualties and property loss are caused. The investigation statistics show that the main reasons of the accidents are improper primary support of the tunnel and untimely follow-up of the subsequent procedures such as inverted arch, secondary lining and the like. In order to ensure the safety of railway tunnel construction, the distance between an inverted arch and a tunnel face is more and more strict by the railway department, and the safety technical regulations of railway tunnel engineering construction (TB10304-2009) stipulate that: the distance between the inverted arch and the tunnel face in the III-grade surrounding rock cannot exceed 90m, the distance between the IV-grade surrounding rock and the tunnel face cannot exceed 50m, and the distance between the V-grade surrounding rock and the surrounding rock above the V-grade surrounding rock cannot exceed 40 m. The Ministry of railways' notice about further defining related technical regulations on design and construction of weak surrounding rocks and poor geological railway tunnels (iron construction [2010] 120) makes further mandatory regulations on the distance between tunnel excavation face and inverted arch and secondary lining: the primary support after tunnel excavation should be timely constructed and sealed to form a ring, and the distance between the sealed position of the inverted arches of the IV, V and VI grade surrounding rocks and the tunnel face is not more than 35 m; the distance between the IV-level surrounding rock secondary lining and the tunnel face is not more than 90 m; the distance between the second lining of the V, VI-grade surrounding rock and the tunnel face is not more than 70 m. In addition, in the current tunnel construction, because of the lack of ideal supporting equipment and construction technology, the quality and progress of inverted arch construction are difficult to guarantee, and the cost is high.
Therefore, most of existing inverted arch construction structures are long in formwork erecting time in a tunnel and large in consumption of template support reinforcing steel bars, inverted arch parts can be only poured, pouring quality is not high, construction efficiency is low, and economic benefits are affected to the greatest extent.
Disclosure of Invention
The invention mainly aims to provide a tunnel inverted arch construction formwork structure, which aims to guarantee the pouring construction quality and improve the construction efficiency.
The above problems to be solved by the present invention are achieved by the following technical solutions:
a tunnel inverted arch construction formwork structure comprises an inverted arch middle section, filling side formworks and an inverted arch formwork, wherein a first end of the inverted arch formwork is connected with a first side end of the inverted arch middle section; the first end of the filling side template is connected with the connecting part of the inverted arch template and the inverted arch middle section, and the filling side template and the inverted arch template are connected into a whole; and the first end of the filling side template is respectively communicated with the first end of the inverted arch template and the first side end of the inverted arch middle section.
Preferably, the inverted arch template includes end die body and inverted arch limit wall body, the first end of end die body with the first end of inverted arch limit wall body is connected as an organic whole and is communicate each other, the second end of end die body with the first end of filling the side form board is connected as an organic whole and communicates each other.
Preferably, the tunnel invert construction formwork structure still includes two at least spacer bars, the spacer bar is connected the end die body with fill between the side form board, and/or the spacer bar is connected the end die body with between the invert side wall body.
Preferably, transverse construction notches are respectively arranged between the end mold body and the filling side mold plate and between the end mold body and the inverted arch side wall body.
Preferably, at least two pouring operation windows are arranged on the inverted arch side wall body and are used for pouring concrete.
Preferably, the filling side die plate comprises a first side die and a second side die, the first side die and the second side die are distributed side by side, and a first pouring inner cavity is formed between the first side die and the second side die;
and/or, the inverted arch template includes first top mould and first die block, first top mould with first die block distributes side by side and first top mould with form the second between the first die block and pour the inner chamber.
Preferably, the first pouring inner cavity is communicated with the second pouring inner cavity, and the first pouring inner cavity and the second pouring inner cavity are used for pouring concrete layers.
Preferably, the tunnel invert construction formwork structure further comprises a formwork reinforcement, and the formwork reinforcement is used for reinforcing and fixing the filling side formwork and the invert formwork.
Preferably, the formwork reinforcement comprises a filling side formwork reinforcement and an inverted arch reinforcement, and the inverted arch reinforcement is connected to the lower end of the filling side formwork reinforcement; and the side end of the inverted arch reinforcement is attached to the side end of the inverted arch template, and the filling side mold reinforcement is respectively attached to the side end of the filling side mold plate and the top of the inverted arch template.
Preferably, the middle section of the inverted arch comprises at least two layers of rigid frameworks and vertical anchoring piles, and the side surfaces of the vertical anchoring piles are connected with the rigid frameworks into a whole;
the rigid framework comprises at least two X-axis steel bars distributed in parallel and at least two Y-axis steel bars distributed in parallel, and the X-axis steel bars are connected with the Y-axis steel bars in an interconnection mode.
Has the advantages that: according to the technical scheme, the filling side templates and the inverted arch templates are connected into a whole, and the whole template is processed and then hoisted, so that one-time formwork support is realized, template splicing seams are few after forming, meanwhile, the generation of construction waste is reduced, the stability of the whole structure is improved, the subsequent pouring construction quality is guaranteed, the construction time is effectively shortened, and the construction efficiency is improved; still link up the intercommunication installation through invert middle part section and filling side form board, can ensure the smoothness nature of pouring the construction, shorten invert and filling activity duration effectively, reduce intensity of labour, improved the efficiency of construction.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a formwork structure for tunnel inverted arch construction according to the present invention.
Fig. 2 is a partial structural schematic view of an inverted arch formwork and a filling side formwork of an embodiment of the tunnel inverted arch construction formwork structure of the invention.
Fig. 3 is a partially enlarged view of an embodiment of the formwork structure for tunnel inverted arch construction according to the present invention.
Fig. 4 is a cross-sectional view of an embodiment of the formwork structure for tunnel inverted arch construction according to the present invention.
Fig. 5 is a schematic structural diagram of an embodiment of a formwork structure for tunnel inverted arch construction according to the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Filling |
10 | First pouring |
| 11 | First reinforcing I- |
2 | Inverted |
| 20 | Transverse construction gapMouth with a |
21 | |
| 22 | Inverted |
24 | Second reinforcing I- |
| 25 | |
3 | |
| 5 | |
51 | Filling |
| 511 | First reinforced |
512 | Second reinforced |
| 513 | Reinforced |
52 | Inverted |
| 6 | Tunnel |
7 | Middle section of inverted arch |
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a tunnel inverted arch construction formwork structure.
As shown in fig. 1-2, in an embodiment of the present invention, the inverted arch construction formwork structure of the tunnel; the inverted arch formwork comprises an inverted arch middle section 7, a filling side formwork 1 and an inverted arch formwork 2, wherein a first end of the inverted arch formwork 2 is connected with a first side end of the inverted arch middle section 7; the first end of the filling side template 1 is connected to the connection part of the inverted arch template 2 and the inverted arch middle section 7, and the filling side template 1 and the inverted arch template 2 are connected into a whole; the first end of the filling side template 1 is respectively communicated with the first end of the inverted arch template 2 and the first side end of the inverted arch middle section 7.
According to the technical scheme, the filling side templates and the inverted arch templates are connected into a whole, and the whole template is processed and then hoisted, so that one-time formwork support is realized, template splicing seams are few after forming, meanwhile, the generation of construction waste is reduced, the stability of the whole structure is improved, the subsequent pouring construction quality is guaranteed, the construction time is effectively shortened, and the construction efficiency is improved; still link up the intercommunication installation through invert middle part section and filling side form board, can ensure the smoothness nature of pouring the construction, shorten invert and filling activity duration effectively, reduce intensity of labour, improved the efficiency of construction.
In some embodiments, as shown in fig. 1 and 2, two inverted arch templates 2 are used, at least four filling side templates 1 are used, and the inverted arch templates 2 are respectively connected to the left end and the right end of the inverted arch middle section 7; the side filling templates 1 are distributed between the inverted arch template 2 and the inverted arch middle section 7 at equal intervals, and the side filling templates 1 and the inverted arch template 2 are integrally and fixedly molded; the inverted arch template 2 is used for being installed and connected on the inner side wall of the tunnel cave-dissolving body 6; the inverted arch middle section 7 is used for being installed and connected to the inner bottom of the tunnel cave-dissolving body 6.
In some embodiments, as shown in fig. 3, at least two first reinforcing i-beams 11 are fixed to the first side surface of the filling side form 1; at least two second reinforcing I-beams 24 are fixed on the first side surface of the inverted arch formwork 2.
In some embodiments, as shown in fig. 2 to 3, the filling side form 1 includes a first side form and a second side form, the first side form and the second side form are distributed side by side, and a first casting cavity 10 is formed between the first side form and the second side form;
the inverted arch formwork 2 comprises a first top formwork and a first bottom formwork, the first top formwork and the first bottom formwork are distributed side by side, and a second pouring inner cavity 23 is formed between the first top formwork and the first bottom formwork;
the first casting inner cavity 10 is communicated with the second casting inner cavity 23, and the first casting inner cavity 10 and the second casting inner cavity 23 are used for casting the concrete layer 3. And the casting fluency is guaranteed.
Wherein, in some embodiments, the first and second side forms and the first and second top and bottom forms each include at least two lateral rebars and at least two longitudinal rebars distributed in parallel, the lateral rebars and the longitudinal rebars being interconnected; that is, the longitudinal steel bars and the transverse steel bars are distributed in a staggered manner to form a grid-shaped structure. The structural stability of pouring formation is ensured.
In some embodiments, as shown in fig. 4 to 5, the formwork structure for tunnel inverted arch construction further includes a formwork reinforcement 5, and the formwork reinforcement 5 is used for reinforcing and fixing the filling side formwork 1 and the inverted arch formwork 2. Wherein, in some embodiments, the formwork reinforcement 5 is used to simultaneously reinforce and secure the filling side formwork 1 and the inverted arch formwork 2; at least three template reinforcing pieces 5 are selected and distributed at equal intervals; wherein the equidistant spacing L1Is 50-100 cm.
Among them, in some embodiments, as shown in fig. 5, the formwork reinforcement 5 includes a filling side form reinforcement 51 and an inverted arch reinforcement 52, the inverted arch reinforcement 52 being connected to a lower end of the filling side form reinforcement 51; and the side end of the inverted arch reinforcement 52 is attached to the side end of the inverted arch form 2, and the filling side form reinforcement 51 is attached to the side end of the filling side form 1 and the top of the inverted arch form 2, respectively.
As shown in fig. 5, the filling-side die reinforcing member 51 includes a first reinforcing straight plate 511, a second reinforcing straight plate 512 and a reinforcing inclined plate 513, wherein the second reinforcing straight plate 512 is connected to the bottom of the first reinforcing straight plate 511, and two ends of the reinforcing inclined plate 513 are respectively connected to two adjacent side surfaces of the first reinforcing straight plate 511 and the second reinforcing straight plate 512; and the first reinforcing straight plate 511 is jointed and connected with the side end of the filling side formwork 1, and the second reinforcing straight plate 512 is jointed and connected with the top of the inverted arch formwork 2.
Specifically, in some embodiments, as shown in fig. 2, the inverted arch form 2 includes an end mold body 21 and an inverted arch side wall 22, a first end of the end mold body 21 and a first end of the inverted arch side wall 22 are connected as a whole and are communicated with each other, and a second end of the end mold body 21 and a first end of the filling side form 1 are connected as a whole and are communicated with each other.
Pouring: pouring the pouring concrete into the filling side formwork so that the pouring concrete is poured into the middle section of the inverted arch; stopping pouring the concrete into the filling side formwork after the concrete is poured in the middle section of the inverted arch and the concrete is contacted with or close to the end formwork; pouring concrete into the inverted arch side wall body so as to realize the pouring of the interior of the end mould body and the interior of the inverted arch side wall body in sequence. Because the middle section of the inverted arch is the middle section of the inverted arch with large arc radius, the slope is gentle in the pouring process, and the concrete can be poured from the middle to two sides by a natural concrete paving method; and when the end mold body is poured, pouring the inverted arch side wall body, and completing the one-step pouring of the inverted arch concrete.
Specifically, in some embodiments, as shown in fig. 3, the formwork structure for tunnel inverted arch construction further includes at least two positioning steel bars 25, and the positioning steel bars 25 are respectively connected between the end mold body 21 and the filling side formwork 1 and between the end mold body 21 and the inverted arch side wall 22. Wherein, in some embodiments, the positioning rebar 25 comprises a first positioning rebar and a second positioning rebar, the first positioning rebar being located between the inverted arch side wall and the end form; and the second positioning steel bar is positioned between the filling side template and the end mold body. The assembly fluency and stability between the end mold body, the inverted arch side wall body and the filling side mold plate are guaranteed, and the construction efficiency is improved.
That is to say, set up seamless steel bar (the diameter equals invert lining reinforcing bar protective layer thickness) in the template outside, set up interim bisector (equidistant with the lining reinforcing bar) on the reinforcing bar, evenly tie the lining reinforcing bar on the steel pipe through pricking the silk, make lining reinforcing bar interval, protective layer thickness control and radian satisfy design and standard requirement.
Specifically, in some embodiments, as shown in fig. 2, a transverse construction gap 20 is respectively provided between the end mold body 21 and the filling side mold plate 1, and between the end mold body 21 and the inverted arch side wall 22. Wherein, in some embodiments, the width of the transverse construction gap 20 is greater than 50 cm; wherein, in some embodiments, the width of the transverse construction gap 20 is greater than 50cm and less than 100 cm; through the transverse construction gap in a reasonable range, a corresponding and appropriate transverse construction joint can be formed in the pouring process, so that the structural stability between the templates of all sections can be guaranteed, and the construction quality and the construction efficiency are further guaranteed.
On the premise of meeting layered construction and enabling transverse construction joints of each structural layer to be staggered by more than 50cm, the inverted arch and the filling end formwork are connected into a whole, and the formwork is erected at one time for forming, so that the process intermittence time can be greatly shortened.
Specifically, in some embodiments, at least two placement windows are provided on the inverted arch side wall 22, and the placement windows are used for placing concrete. At least four pouring operation windows are additionally arranged along the width direction of the inverted arch side wall body, and then pouring concrete is poured into the inverted arch side wall body from the pouring operation windows respectively, so that the pouring of the interior of the end mold body and the interior of the inverted arch side wall body is achieved in sequence. In some embodiments, the pouring concrete is poured from the pouring operation window at the same time, the problems that the concrete cannot vibrate in the width range of the arc-shaped formwork and the pouring quality is affected are further solved, the defect that the concrete cannot vibrate can be completely overcome, honeycomb pitted surfaces caused by vibration leakage are avoided, and the inside and outside beauty of the concrete are guaranteed.
Specifically, in some embodiments, the inverted arch middle section 7 includes at least two layers of rigid frameworks and vertical anchor piles, which are respectively integrally connected with the rigid frameworks; the rigid framework comprises at least two X-axis steel bars distributed in parallel and at least two Y-axis steel bars distributed in parallel, and the X-axis steel bars and the Y-axis steel bars are connected with each other; that is to say, the Y-axis steel bars and the X-axis steel bars are distributed in a staggered manner to form a grid structure.
That is to say, tunnel invert construction die carrier is as a steel construction form of construction, it is as an organic whole with filling side form board and end mould body and invert side wall body adoption shaped steel preassemble, vertical anchor pile is as the tension member, in the work progress, pass through the template panel with concrete flow load and transmit to the rigid framework above, then transmit for vertical anchor pile by the rigid framework, transmit for side wall steelframe of having constructed or bottom tunnel by vertical anchor pile at last and dissolve the hole body, form a complete atress system, guarantee that the template does not take place the skew, and then realize the quick construction of invert.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (10)
1. The tunnel invert construction formwork structure is characterized by comprising an invert middle section, filling side formworks and an invert formwork, wherein a first end of the invert formwork is connected with a first side end of the invert middle section; the first end of the filling side template is connected with the connecting part of the inverted arch template and the inverted arch middle section, and the filling side template and the inverted arch template are connected into a whole; the first end of filling side form board respectively with the first end of invert template first side end intercommunication of invert middle part section.
2. The formwork structure for tunnel inverted arch construction according to claim 1, wherein the inverted arch formwork comprises an end formwork body and an inverted arch side wall body, a first end of the end formwork body is connected with a first end of the inverted arch side wall body into a whole and is communicated with the first end of the inverted arch side wall body, and a second end of the end formwork body is connected with a first end of the filling side formwork into a whole and is communicated with the first end of the filling side formwork body.
3. The formwork structure for tunnel inverted arch construction according to claim 2, further comprising at least two positioning steel bars, wherein the positioning steel bars are connected between the end mold body and the filling side mold plate, and/or the positioning steel bars are connected between the end mold body and the inverted arch side wall body.
4. The formwork structure for tunnel inverted arch construction according to claim 2 or 3, wherein transverse construction notches are respectively provided between the end mold body and the filling side mold plate and between the end mold body and the inverted arch side wall body.
5. The formwork structure for tunnel inverted arch construction according to claim 2 or 3, wherein at least two pouring operation windows are arranged on the inverted arch side wall body, and the pouring operation windows are used for pouring concrete.
6. The tunnel invert construction formwork structure according to claim 1 or 2, characterized in that the filling side formwork comprises a first side formwork and a second side formwork, the first side formwork and the second side formwork are distributed side by side and a first casting cavity is formed between the first side formwork and the second side formwork;
and/or, the inverted arch template includes first top mould and first die block, first top mould with first die block distributes side by side and first top mould with form the second between the first die block and pour the inner chamber.
7. The formwork structure for tunnel inverted arch construction according to claim 6, wherein the first casting inner cavity and the second casting inner cavity are communicated with each other, and the first casting inner cavity and the second casting inner cavity are used for casting concrete layers.
8. The tunnel invert construction formwork structure according to any of claims 1 to 3, further comprising formwork reinforcement for reinforcing and fixing the filling side formwork and the invert formwork.
9. The formwork structure for tunnel inverted arch construction according to claim 8, wherein the formwork reinforcement includes a filling side formwork reinforcement and an inverted arch reinforcement, and the inverted arch reinforcement is connected to a lower end of the filling side formwork reinforcement; and the side end of the inverted arch reinforcement is attached to the side end of the inverted arch template, and the filling side mold reinforcement is respectively attached to the side end of the filling side mold plate and the top of the inverted arch template.
10. The tunnel invert construction formwork structure according to claim 1, wherein the invert middle section comprises at least two layers of rigid frameworks and vertical anchoring piles, and the side surfaces of the vertical anchoring piles are integrally connected with the rigid frameworks;
the rigid framework comprises at least two X-axis steel bars distributed in parallel and at least two Y-axis steel bars distributed in parallel, and the X-axis steel bars are connected with the Y-axis steel bars in an interconnection mode.
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| CN202210324766.XA CN114658447A (en) | 2022-03-30 | 2022-03-30 | Tunnel inverted arch construction die carrier structure |
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| CN202210324766.XA CN114658447A (en) | 2022-03-30 | 2022-03-30 | Tunnel inverted arch construction die carrier structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704297A (en) * | 2022-03-30 | 2022-07-05 | 中铁二十局集团第五工程有限公司 | Integral tunnel inverted arch structure and construction process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114704297A (en) * | 2022-03-30 | 2022-07-05 | 中铁二十局集团第五工程有限公司 | Integral tunnel inverted arch structure and construction process thereof |
| CN114704297B (en) * | 2022-03-30 | 2024-07-16 | 中铁二十局集团第五工程有限公司 | Integral inverted arch structure of tunnel and construction process thereof |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ji Weiqing Inventor after: Wei Hui Inventor after: Duan Wuquan Inventor after: Li Chaocheng Inventor after: Leng Zhihua Inventor after: Zhang Xiangqian Inventor after: Geng Guoqiang Inventor after: Yin Jinglong Inventor after: Li Xian Inventor before: Ji Weiqing Inventor before: Wei Hui Inventor before: Duan Wuquan Inventor before: Li Chaocheng Inventor before: Leng Zhihua Inventor before: Zhang Xiangqian Inventor before: Geng Guoqiang Inventor before: Yin Jinglong Inventor before: Li Xian |