CN113622960A - Tunnel supporting structure and construction method thereof - Google Patents
Tunnel supporting structure and construction method thereof Download PDFInfo
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- CN113622960A CN113622960A CN202111065944.3A CN202111065944A CN113622960A CN 113622960 A CN113622960 A CN 113622960A CN 202111065944 A CN202111065944 A CN 202111065944A CN 113622960 A CN113622960 A CN 113622960A
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- 238000010276 construction Methods 0.000 title claims abstract description 48
- 239000004567 concrete Substances 0.000 claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims description 93
- 239000010959 steel Substances 0.000 claims description 93
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 1
- 239000003351 stiffener Substances 0.000 description 10
- 230000002829 reductive effect Effects 0.000 description 7
- 239000011376 self-consolidating concrete Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 208000011580 syndromic disease Diseases 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
-
- 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
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (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 supporting structure and a construction method thereof, wherein the tunnel supporting structure comprises a supporting component and concrete, the supporting component is suitable for being arranged on the inner wall of a tunnel, and a grouting cavity is formed between the supporting component and the inner wall of the tunnel; the support assembly comprises at least one support ring assembly, and the at least one support ring assembly is sequentially spliced along the length direction of the tunnel; and concrete is injected into the grouting cavity. The tunnel supporting structure provided by the invention improves the rock burst protection level, has variable rigidity and strong deformation resistance, and has the advantages of excellent stress performance, flexible construction conditions, convenience in template installation and the like.
Description
Technical Field
The invention relates to the technical field of tunnel engineering supporting structures, in particular to a tunnel supporting structure and a construction method thereof.
Background
Tunnels are engineering structures buried in the ground and are a form of human use of underground space. Along with the development of society, high-rise forests on the ground have less and less available area, so that the road traffic pressure is relieved for the convenience of life of people, and the tunnel is suitable for transportation.
Tunnel construction generally refers to excavation of a tunnel in a mountain or underground, and in tunnel construction, support and protection are generally required using a support device in order to avoid collapse of a tunnel roof.
At present, a secondary lining mode is mostly adopted for a tunnel engineering supporting structure, damage of different rock burst grades cannot be timely and effectively resisted in a construction stage, and certain construction safety risks exist.
Disclosure of Invention
The invention mainly aims to provide a tunnel supporting structure and a construction method thereof, and aims to improve the rock burst protection capability of the tunnel supporting structure so as to improve the safety of tunnel construction.
In order to achieve the above object, the present invention provides a tunnel supporting structure, including:
the supporting assembly is suitable for being arranged on the inner wall of the tunnel, and a grouting cavity is formed between the supporting assembly and the inner wall of the tunnel; the support assembly comprises at least one support ring assembly, and the at least one support ring assembly is sequentially spliced along the length direction of the tunnel; and
and concrete is injected into the grouting cavity.
Optionally, the support ring assemblies are all arranged in an annular shape, and each support ring assembly comprises:
and the steel plate units are sequentially spliced along the circumferential direction of the tunnel and are communicated with each other through grouting ports of the grouting cavities.
Optionally, each of the steel plate units includes:
the inner ring steel plate is arranged in an arch shape and is provided with two opposite arc edges and two opposite side edges; and
the first splicing plates are arranged on the arc edges of the inner ring steel plates, and the two adjacent first splicing plates in the length direction of the tunnel are spliced with each other.
Optionally, each of the steel plate units further includes:
and the second splicing plates are arranged on the side edges of the inner ring steel plates, and the tunnel ring is spliced to two adjacent second splicing plates.
Optionally, a side of the inner ring steel plate facing away from the concrete is provided with a reinforcement portion for enhancing the bending rigidity of the steel plate unit.
Optionally, the reinforcing part is a stiffening rib protruding from the inner ring steel plate.
Optionally, the stiffening ribs are arranged along the circumferential direction of the inner ring steel plate.
Optionally, the number of the stiffeners is two to three.
Optionally, angle steel is arranged on two sides of the stiffening rib.
Optionally, the cross section of the angle steel is arranged in an L shape.
Optionally, in the length direction of the tunnel, two adjacent supporting ring assemblies are in staggered splicing.
Optionally, the phase difference between two adjacent supporting ring assemblies is 10-50 degrees.
Optionally, the number of the supporting ring assemblies is 6, and each supporting ring assembly is provided with 6 inner ring steel plates.
In order to achieve the above object, the present invention further provides a construction method of a tunnel supporting structure, based on the tunnel supporting structure, including the following steps:
sequentially installing a plurality of inner ring steel plates to assemble the support assembly;
injecting the concrete into the grouting cavity;
and after the concrete is hardened and formed, sequentially disassembling the inner ring steel plates.
Optionally, the step of sequentially installing a plurality of the inner ring steel plates to assemble the support assembly comprises:
positioning and mounting the inner ring steel plate by taking the support assembly at the corresponding position of the previous construction section as a reference;
sequentially splicing the inner ring steel plates along the circumferential direction of the tunnel to assemble the supporting ring assembly;
and sequentially splicing the inner ring steel plates along the length direction of the tunnel to assemble the supporting assembly.
According to the technical scheme, the tunnel supporting structure comprises a supporting component and concrete, wherein the supporting component is suitable for being arranged on the inner wall of a tunnel, and a grouting cavity is formed between the supporting component and the inner wall of the tunnel; the support assembly comprises at least one support ring assembly, and the at least one support ring assembly is sequentially spliced along the length direction of the tunnel; and concrete is injected into the grouting cavity. It can be understood that by adopting the supporting component and the concrete as the supporting structure of the tunnel, the rock burst and rockfall impact can be effectively resisted, and the safety of constructors in the tunnel is ensured.
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 partial structural view of a tunnel supporting structure according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a tunnel supporting structure according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a support assembly in an embodiment of the tunnel supporting structure of the present invention;
fig. 4 is a schematic structural view of concrete in one embodiment of the tunnel supporting structure of the present invention;
fig. 5 is a schematic structural view of a steel plate unit in an embodiment of a tunnel supporting structure of the present invention;
fig. 6 is a schematic flow chart illustrating a construction method of a tunnel supporting structure according to an embodiment of the present invention;
fig. 7 is a detailed flowchart of a construction method of a tunnel supporting structure according to an embodiment of the present invention.
The reference numbers illustrate:
10. a support assembly; 20. concrete; 11. a support ring assembly; 111. a steel plate unit; 100. an inner ring steel plate; 101. a first splice plate; 102. a second splice plate; 103. a stiffening rib; 104. and (5) angle steel.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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 obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are 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 such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied. 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.
In order to improve the rockburst protection capability of the tunnel supporting structure and improve the safety of tunnel construction, the invention provides the tunnel supporting structure which can be applied to various underground space structures, particularly to a rockburst easily-occurring section of a deep-buried tunnel, and the tunnel supporting structure is not limited in the process.
Referring to fig. 1 to 4, in an embodiment of the present invention, the tunnel supporting structure includes a support member 10 and concrete 20, wherein the support member 10 is adapted to be disposed on an inner wall of a tunnel and forms a grouting cavity with the inner wall of the tunnel; as shown in fig. 3, the support assembly 10 comprises at least one support ring assembly 11, and the at least one support ring assembly 11 is spliced in sequence along the length direction of the tunnel; as shown in fig. 2, concrete 20 is injected into the grouting cavity.
In this embodiment, the retaining ring assembly 11 may be assembled from a plurality of metal plates such as steel plates or aluminum alloy plates. The support ring assembly 11 may be arranged in a ring shape or an arch shape, a space between the support ring assembly 11 and the inner wall of the tunnel is a grouting cavity, and the grouting cavity may be arranged in a ring shape or an arch shape, which is not limited herein.
The concrete 20 in the present embodiment may be self-compacting concrete, ordinary concrete, or the like, and is not particularly limited herein.
Among them, Self-Compacting Concrete (SCC) refers to Concrete that can flow and compact under its own gravity, and can completely fill a formwork even if dense steel bars exist, and at the same time, can obtain good homogeneity without additional vibration. The self-compacting concrete has the following advantages: 1. the concrete is guaranteed to be well dense; 2. the production efficiency is improved, and because the vibration is not needed, the time required by concrete pouring is greatly shortened, the labor intensity of workers is greatly reduced, and the number of required workers is reduced; 3. the working environment and the safety are improved, the vibration noise is avoided, and the arm vibration syndrome caused by the fact that a worker holds the vibrator for a long time is avoided; 4. improve the surface quality of concrete. Surface bubbles or honeycomb pitted surface can not appear, and surface repair is not needed; the texture or the sculpt of the surface of the template can be vividly presented. 5. The freedom degree of structural design is increased, vibration is not needed, and a structure with a complex shape, a thin wall and dense reinforcing bars can be cast and molded; previously, such structures have often been limited in their adoption due to difficulties in concrete placement; 6. the abrasion of the template caused by vibration is avoided; 7. the abrasion of the concrete to the mixer is reduced; 8. the whole construction cost of the project can be reduced, and the cost is reduced in a plurality of aspects of improving the construction speed, limiting the noise by the environment, reducing the labor, ensuring the quality and the like.
It can be understood that the support assembly 10 of the tunnel supporting structure is arranged on the inner wall of the tunnel, a grouting cavity is formed between the support assembly 10 and the inner wall of the tunnel, the support assembly 10 comprises at least one support ring assembly 11, the at least one support ring assembly 11 is sequentially spliced along the length direction of the tunnel, and the concrete 20 is injected into the grouting cavity, so that the rock burst and rockfall impact can be effectively resisted, and the safety of constructors in the tunnel is ensured.
In order to improve the convenience of site operation and ensure the safety of tunnel engineering construction, in an embodiment, mainly refer to fig. 3 and 5, the supporting ring assembly 11 can be arranged in an annular shape, the supporting ring assembly 11 comprises a plurality of steel plate units 111, each steel plate unit 111 is sequentially spliced along the annular direction of the tunnel, and each steel plate unit 111 is provided with a grouting port communicated with a grouting cavity, so that the self-compacting concrete 20 is conveniently led into the grouting cavity, the self-compacting concrete 20 can be fully and uniformly led in, and the construction period of the supporting structure can be shortened.
It should be noted that the number of the grouting ports may be plural, so as to further improve the convenience of introducing the concrete 20 and further shorten the construction period.
In this embodiment, the splicing manner between two adjacent steel plate units 111 may be screws, bolts, welding, or a combination of multiple connection manners, which is not limited herein. It should be noted that, in order to make the supporting component 10 serve as a reusable system, which is convenient to be removed after the construction is finished, and then transferred to the next construction hole section for use, in this embodiment, the specific splicing manner may preferably be bolt connection.
In order to reduce the gaps between the steel plate units 111, prevent the concrete 20 from flowing out of the gaps between the steel plate units 111, and improve the overall reliability of the tunnel supporting structure, in an embodiment, referring mainly to fig. 1 and 5, each steel plate unit 111 may include an inner ring steel plate 100 and a first splice plate 101, the inner ring steel plate 100 is arranged in an arch shape, and the inner ring steel plate 100 has two opposite arc edges and two opposite side edges; the first splicing plates 101 are arranged on the arc edge of the inner ring steel plate 100, and two adjacent first splicing plates 101 in the length direction of the tunnel are spliced with each other.
It should be noted that, the two side edges of the inner ring steel plate 100 refer to two short edges extending along the length direction of the tunnel, and the two arc edges of the inner ring steel plate 100 refer to two long edges extending along the circumferential direction of the tunnel.
Further, in an embodiment, referring to fig. 1 and fig. 5, each steel plate unit 111 may further include a second splice plate 102, the second splice plates 102 are disposed on the side of the inner ring steel plate 100, and the tunnel ring is spliced to two adjacent second splice plates 102.
In order to improve the stress performance of the tunnel supporting structure and further improve the overall stability, in one embodiment, as shown in fig. 5, a reinforcing part is provided on the side of the inner ring steel plate 100 facing away from the concrete 20 for enhancing the bending rigidity of the steel plate unit 111.
In the present embodiment, as shown in fig. 5, the reinforcing portion may be a stiffening rib 103 protruding from the inner ring steel plate 100 to enhance the bending rigidity of the steel plate unit 111, and at the same time, the steel plate unit is convenient to be integrally manufactured, and the cost is reduced.
It should be noted that, in order to achieve a better bending rigidity, as shown in fig. 5, the stiffening ribs 103 may be disposed along the circumferential direction of the inner ring steel plate 100. Preferably, the number of the stiffeners 103 may be two to three. When the number of the stiffeners 103 is two, the distance between two stiffeners 103 is equal to the distance between each stiffener 103 and its adjacent arc edge. When the number of the stiffeners 103 is three, the three stiffeners 10 may be uniformly distributed on the inner ring steel plate 100 at intervals.
Of course, in some other embodiments, only one stiffening rib 103 may be disposed on the inner ring steel plate 100, and a greater number of stiffening ribs 103 may also be disposed, which is not limited herein.
Further, as shown in fig. 5, angle steel 104 may be provided on both sides of each stiffener 103, which may further increase the bending rigidity of the steel plate unit 111.
The cross section of the angle steel 104 may be in an "L" shape, so as to further enhance the bending rigidity of the steel plate unit 111 and improve the convenience of production and processing.
In this embodiment, the web of the supporting component 10 is one limb of the stiffener 103 and the angle steel 104 on both sides thereof, the lower flange is the other limb of the angle steel 104 on both sides of the stiffener 103, and the upper flange is the inner ring steel plate 100. The upper flange, web and lower flange of the support assembly 10 together form an "i" shaped cross-section.
Referring to fig. 3, in an embodiment, two adjacent guard ring assemblies 11 are in staggered splicing in the tunnel length direction. Therefore, the longitudinal rigidity of the tunnel supporting structure can be improved, the displacement is reduced, and the overall stability is improved.
In the embodiment, the phase difference between two adjacent protective ring assemblies 11 is 10-50 degrees, so that the stability of the tunnel supporting structure is improved while construction is facilitated. Wherein, the phase difference can be preferably 30 degrees, and better stability can be achieved.
In order to facilitate construction and reduce construction period, the tunnel supporting structure may adopt a segmental construction method, and referring to fig. 3, it is preferable that the number of the supporting ring assemblies 11 is 6, and each supporting ring assembly 11 has 6 inner ring steel plates 100.
It should be noted that in this embodiment, the support assembly 10 is used as a reusable system, and is removed after the construction is completed, and can be transferred to the next construction hole section for further use.
Of course, in some other embodiments, the tunnel supporting structure may also use fewer or more supporting ring assemblies 11 and fewer or more inner ring steel plates 100, and may be designed to be suitable according to the size of the tunnel to be constructed.
The invention further provides a construction method of the tunnel supporting structure, and the construction method of the tunnel supporting structure is based on the tunnel supporting structure.
Referring to fig. 6, in an embodiment of the present invention, a construction method of the tunnel supporting structure includes the steps of:
step S10, sequentially installing a plurality of inner ring steel plates to assemble the support assembly;
step S20, injecting the concrete into the grouting cavity;
and step S30, after the concrete is hardened and formed, sequentially disassembling the inner ring steel plates.
During construction, a plurality of inner ring steel plates can be transported to a construction site, and when the inner ring steel plates are sequentially installed, the inner ring steel plates can be sequentially spliced to the inner wall of the tunnel in the anticlockwise direction or the clockwise direction to form a supporting ring assembly; of course, in order to shorten the construction period, the supporting ring assembly may be assembled by performing construction from two or more positions at the same time. And then, mounting the supporting ring assemblies with the target number on the basis of the constructed supporting ring assemblies to achieve the concrete formwork with the target length, namely completing the assembly of the supporting assemblies.
The connection method between the inner ring steel plates may be bolt connection, screw connection, rivet connection, welding, or the like, or may be a combination of two or more connection methods, which is not limited herein.
Here, in order to make the supporting component be a reusable system so as to be detached after construction is finished and then transferred to the next construction hole section for continuous use, the utilization rate of the supporting component is improved, and the connection mode between the inner ring steel plates can be preferably bolt connection.
In this embodiment, the concrete may be ordinary concrete or self-compacting concrete, and the concrete may be introduced into the grouting cavity through a grouting opening provided in advance in the inner ring steel plate, and after the concrete is hardened and formed, the inner ring steel plate may be sequentially detached to be transferred to the next construction hole section for continuous use.
Referring to fig. 7, in order to improve the construction efficiency and shorten the construction period, in an embodiment, the step of sequentially installing a plurality of inner ring steel plates to assemble the support assembly may include:
step S11, positioning and installing the inner ring steel plate by taking the support assembly at the corresponding position of the previous construction section as a reference;
s12, sequentially splicing the inner ring steel plates along the circumferential direction of the tunnel to assemble the supporting ring assembly;
and step S13, splicing the inner ring steel plates in sequence along the length direction of the tunnel to assemble the support assembly.
In this embodiment, the inner ring steel plates are positioned based on the inner ring steel plates constructed in the previous construction section, longitudinal and circumferential splicing between the inner ring steel plates is completed, and a first complete supporting ring assembly is formed after splicing of a plurality of inner ring steel plates is completed. Then, the next supporting ring assembly can be sequentially spliced in a staggered manner by adopting a phase difference of 30 degrees or other angles until the reasonable construction section length is reached, namely the supporting structure with the target length is reached.
It should be noted that, when there is no support component in the previous construction segment, the support component can be directly built in the previous construction segment, positioning is not needed, and the support ring component can be installed by erecting a scaffold, so as to position and install the rest support ring components.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. A tunnel supporting structure, characterized in that the tunnel supporting structure includes:
the supporting assembly is suitable for being arranged on the inner wall of the tunnel, and a grouting cavity is formed between the supporting assembly and the inner wall of the tunnel; the support assembly comprises at least one support ring assembly, and the at least one support ring assembly is sequentially spliced along the length direction of the tunnel; and
and concrete is injected into the grouting cavity.
2. The tunnel support structure of claim 1, wherein the support ring assemblies are each in an annular arrangement, the support ring assemblies comprising:
and the steel plate units are sequentially spliced along the circumferential direction of the tunnel and are communicated with each other through grouting ports of the grouting cavities.
3. The tunnel support structure of claim 2, wherein each of the steel plate units comprises:
the inner ring steel plate is arranged in an arch shape and is provided with two opposite arc edges and two opposite side edges; and
the first splicing plates are arranged on the arc edges of the inner ring steel plates, and the two adjacent first splicing plates in the length direction of the tunnel are spliced with each other.
4. The tunnel support structure of claim 3, wherein each of the steel plate units further comprises:
and the second splicing plates are arranged on the side edges of the inner ring steel plates, and the tunnel ring is spliced to two adjacent second splicing plates.
5. The tunnel support structure of claim 3, wherein the side of the inner ring steel plate facing away from the concrete is provided with a reinforcement for enhancing the bending rigidity of the steel plate unit.
6. The tunnel support structure of claim 5, wherein the reinforcing portion is a reinforcing rib provided to protrude from the inner-ring steel plate.
7. The tunnel support structure of claim 6, wherein the stiffening ribs are provided in a circumferential direction of the inner-ring steel plate.
8. The tunnel support structure of claim 7 wherein the number of stiffening ribs is two to three.
9. A tunnel support structure as claimed in claim 7 or 8, wherein angle steel is provided on both sides of the stiffening rib.
10. A tunnel support structure as claimed in claim 9, wherein the angle steel is provided in an "L" shape in cross section.
11. A tunnel support structure as claimed in any one of claims 2 to 8, wherein adjacent support ring assemblies are in staggered engagement along the length of the tunnel.
12. A tunnel support structure as claimed in claim 11, wherein adjacent support ring assemblies are out of phase by 10 ° to 50 °.
13. The tunnel support structure of claim 12, wherein the number of support ring assemblies is 6, and each support ring assembly has 6 inner ring steel plates.
14. A construction method of a tunnel supporting structure based on the tunnel supporting structure according to any one of claims 3 to 13, characterized by comprising the steps of:
sequentially installing a plurality of inner ring steel plates to assemble the support assembly;
injecting the concrete into the grouting cavity;
and after the concrete is hardened and formed, sequentially disassembling the inner ring steel plates.
15. A method of constructing a tunnel supporting structure as claimed in claim 14, wherein the step of sequentially installing a plurality of the inner ring steel plates to assemble the supporting assembly includes:
positioning and mounting the inner ring steel plate by taking the support assembly at the corresponding position of the previous construction section as a reference;
sequentially splicing the inner ring steel plates along the circumferential direction of the tunnel to assemble the supporting ring assembly;
and sequentially splicing the inner ring steel plates along the length direction of the tunnel to assemble the supporting assembly.
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| CN202111065944.3A CN113622960A (en) | 2021-09-10 | 2021-09-10 | Tunnel supporting structure and construction method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090105550A (en) * | 2008-04-03 | 2009-10-07 | 한국건설기술연구원 | Reinforced Concrete Tunnels by Using Corrugated Steel Plate and the Construction Method thereof |
| CN105114105A (en) * | 2015-09-18 | 2015-12-02 | 南京联众建设工程技术有限公司 | Steel-concrete composite tunnel lining supporting structure and manufacturing and construction method thereof |
| CN107120124A (en) * | 2017-03-20 | 2017-09-01 | 中国铁道科学研究院铁道建筑研究所 | A kind of method for protecting support for tunnel |
| CN113202518A (en) * | 2021-06-02 | 2021-08-03 | 沈阳建筑大学 | Assembled corrugated steel-filling layer composite tunnel supporting system and construction method thereof |
-
2021
- 2021-09-10 CN CN202111065944.3A patent/CN113622960A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090105550A (en) * | 2008-04-03 | 2009-10-07 | 한국건설기술연구원 | Reinforced Concrete Tunnels by Using Corrugated Steel Plate and the Construction Method thereof |
| CN105114105A (en) * | 2015-09-18 | 2015-12-02 | 南京联众建设工程技术有限公司 | Steel-concrete composite tunnel lining supporting structure and manufacturing and construction method thereof |
| CN107120124A (en) * | 2017-03-20 | 2017-09-01 | 中国铁道科学研究院铁道建筑研究所 | A kind of method for protecting support for tunnel |
| CN113202518A (en) * | 2021-06-02 | 2021-08-03 | 沈阳建筑大学 | Assembled corrugated steel-filling layer composite tunnel supporting system and construction method thereof |
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