CN113982633B - Frame type tunnel supporting structure - Google Patents
Frame type tunnel supporting structure Download PDFInfo
- Publication number
- CN113982633B CN113982633B CN202111280552.9A CN202111280552A CN113982633B CN 113982633 B CN113982633 B CN 113982633B CN 202111280552 A CN202111280552 A CN 202111280552A CN 113982633 B CN113982633 B CN 113982633B
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- CN
- China
- Prior art keywords
- base member
- tunnel
- supporting structure
- members
- base members
- 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.)
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Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 239000011435 rock Substances 0.000 abstract description 13
- 239000000945 filler Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material 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 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
- E21D11/006—Lining anchored in the rock
-
- 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
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/155—Laggings made of strips, slats, slabs or sheet piles
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (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 relates to the technical field of tunnel support, in particular to a frame type tunnel support structure. The frame type tunnel supporting structure comprises a plurality of base members and a plurality of connecting pieces; the outer peripheral surface of each base member is provided with a plurality of convex parts and a plurality of concave parts; the plurality of convex parts and the plurality of concave parts are arranged in a staggered manner along the axis of the base member, and each convex part and each concave part are annularly arranged around the axis direction of the base member; the plurality of base members extend along the extending direction of the tunnel and are sequentially arranged around the inner peripheral surface of the tunnel; the convex part of each base member is matched with the concave part of the adjacent base member; any two adjacent base members are connected by a connector. The frame type tunnel supporting structure can release deformation pressure of surrounding rock, reduce structural internal force of the supporting structure, thereby ensuring stability of the supporting structure, avoiding damage of the supporting structure, ensuring safety of construction operators and reducing construction cost.
Description
Technical Field
The invention relates to the technical field of tunnel support, in particular to a frame type tunnel support structure.
Background
The traditional supporting concept of 'strong supporting hard top' is to increase supporting resistance by increasing the thickness and rigidity of the primary supporting structure continuously, reduce surrounding rock deformation and further ensure the stability of the primary supporting structure. However, when encountering a soft rock large deformation tunnel, the deformation pressure of surrounding rock can cause the support structure to yield and collapse, even collapse as a whole, so that serious safety accidents and economic losses are caused; and the damaged or collapsed supporting structure is replaced, so that repeated investment of a large amount of supporting materials and construction cost is caused, and the construction period is delayed.
Disclosure of Invention
The invention aims to provide a frame type tunnel supporting structure, which can release deformation pressure of surrounding rock, reduce internal structural force of the supporting structure, ensure stability of the supporting structure, avoid damage of the supporting structure, ensure safety of construction operators and reduce construction cost.
Embodiments of the invention may be implemented as follows:
in a first aspect, the present invention provides a framed tunnel support structure comprising a plurality of base members and a plurality of connectors;
the outer peripheral surface of each base member is provided with a plurality of convex parts and a plurality of concave parts; the plurality of convex parts and the plurality of concave parts are arranged in a staggered manner along the axis of the base member, and each convex part and each concave part are annularly arranged around the axis direction of the base member;
the plurality of base members extend along the extending direction of the tunnel and are sequentially arranged around the inner peripheral surface of the tunnel; the convex part of each base member is matched with the concave part of the adjacent base member; any two adjacent base members are connected by a connector.
In an alternative embodiment, the plurality of base members are each rectangular members; the frame type tunnel supporting structure further comprises a plurality of filling pieces;
each filler is used for filling the gap between two adjacent base members.
In an alternative embodiment, the filler element is wedge-shaped.
In an alternative embodiment, the plurality of connectors are each a connecting bolt; each base member is used for being provided with a plurality of connecting holes on the abutting surface of the adjacent base member, and the connecting holes are sequentially arranged at intervals along the extending direction of the base member; each connecting hole is used for being correspondingly conducted with the connecting hole of the adjacent base component so as to install the connecting bolt.
In an alternative embodiment, a portion of the connection holes of each base member are located in the protrusions and the remaining portion of the connection holes are located in the depressions.
In an alternative embodiment, the protrusions are arc-shaped protrusions and the depressions are arc-shaped depressions.
In an alternative embodiment, the corners of each protrusion and each depression are provided with a transition arc.
In an alternative embodiment, each base member is made of corrugated steel plate.
In an alternative embodiment, each base member is a rectangular frame made of corrugated steel sheet.
In an alternative embodiment, the gap between any two adjacent base members is filled with concrete.
The beneficial effects of the embodiment of the invention include:
the frame type tunnel supporting structure comprises a plurality of base members and a plurality of connecting pieces; the outer peripheral surface of each base member is provided with a plurality of convex parts and a plurality of concave parts; the plurality of convex parts and the plurality of concave parts are arranged in a staggered manner along the axis of the base member, and each convex part and each concave part are annularly arranged around the axis direction of the base member; the plurality of base members extend along the extending direction of the tunnel and are sequentially arranged around the inner peripheral surface of the tunnel; the convex part of each base member is matched with the concave part of the adjacent base member; any two adjacent base members are connected by a connector.
The plurality of base members are sequentially arranged around the inner peripheral surface of the tunnel, and any two adjacent base members are connected through the connecting piece, so that the plurality of base members can play a role in supporting the tunnel; in addition, in the process of supporting the plurality of base members, as the outer peripheral surface of each base member is provided with a plurality of convex parts and a plurality of concave parts, the arrangement mode can increase the structural strength of each base member through the arrangement of the convex parts and the concave parts, and can absorb the deformation pressure of surrounding rock through the deformation of the base member; and, through the bellying of every foundation member and the concave part cooperation of adjacent foundation member, can increase this frame-type tunnel supporting construction's overall structure intensity.
To sum up, this frame-type tunnel supporting structure can release country rock deformation pressure, reduces supporting structure's internal force to guarantee supporting structure's stability, thereby avoid supporting structure's damage, guarantee construction operation personnel's safety, and reduce the cost of construction.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic structural view of a frame-type tunnel supporting structure according to an embodiment of the present invention;
FIG. 2 is an exploded view of a base member and a filler member according to an embodiment of the present invention;
FIG. 3 is a schematic view of a basic component in an embodiment of the present invention;
FIG. 4 is a schematic illustration of the connection of two base members in an embodiment of the present invention;
FIG. 5 is a schematic view illustrating the installation of a connector according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a connection hole according to an embodiment of the present invention.
Icon: 100-frame type tunnel supporting structure; 110-a base member; 120-connectors; 111-a boss; 112-a depression; 130-filler; 113-connection holes.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 to 6, fig. 1 shows the structure of a frame type tunnel supporting structure in an embodiment of the present invention, fig. 2 shows the structure of a foundation member and a filler in an embodiment of the present invention, fig. 3 and 4 show the structure of a foundation member in an embodiment of the present invention, and fig. 5 and 6 show the structure of a foundation member and a connector in an embodiment of the present invention;
the present embodiment provides a frame-type tunnel supporting structure 100, where the frame-type tunnel supporting structure 100 includes a plurality of base members 110 and a plurality of connectors 120;
the outer peripheral surface of each base member 110 is provided with a plurality of convex portions 111 and a plurality of concave portions 112; the plurality of protruding portions 111 and the plurality of recessed portions 112 are arranged in a staggered manner along the axis of the base member 110, and each protruding portion 111 and each recessed portion 112 are annularly arranged around the axis direction of the base member 110;
the plurality of base members 110 each extend along the extending direction of the tunnel and are sequentially disposed around the inner circumferential surface of the tunnel; the raised portion 111 of each base member 110 mates with the recessed portion 112 of an adjacent base member 110; any two adjacent base members 110 are connected by a connector 120.
It should be noted that, the plurality of protruding portions 111 and the plurality of recessed portions 112 on the outer peripheral surface of each base member 110 serve to increase the structural strength of each base member 110, and the protruding portions 111 of each base member 110 are engaged with the recessed portions 112 of the adjacent base member 110, so as to increase the overall structural strength of the frame-type tunnel supporting structure 100; as the structural strength of each base member 110 and the structural strength of the whole frame type tunnel supporting structure 100 are improved, the deformation pressure of surrounding rock which can be absorbed by the base member can be increased; and in the process of absorbing the deformation pressure of the surrounding rock, the deformation of each base member 110 plays a role of absorbing the deformation pressure of the surrounding rock, and in the process, the deformation of each base member 110 can make the connection between two adjacent base members 110 more compact.
The working principle of the frame type tunnel supporting structure 100 is as follows:
referring to fig. 1-6, the frame-type tunnel supporting structure 100 includes a plurality of base members 110 and a plurality of connectors 120; the outer peripheral surface of each base member 110 is provided with a plurality of convex portions 111 and a plurality of concave portions 112; the plurality of protruding portions 111 and the plurality of recessed portions 112 are arranged in a staggered manner along the axis of the base member 110, and each protruding portion 111 and each recessed portion 112 are annularly arranged around the axis direction of the base member 110; the plurality of base members 110 each extend along the extending direction of the tunnel and are sequentially disposed around the inner circumferential surface of the tunnel; the raised portion 111 of each base member 110 mates with the recessed portion 112 of an adjacent base member 110; any two adjacent base members 110 are connected by a connector 120.
Wherein, because the plurality of base members 110 are sequentially arranged around the inner peripheral surface of the tunnel, and any two adjacent base members 110 are connected through the connecting piece 120, the tunnel can be supported by the plurality of base members 110; in addition, in the process of supporting the plurality of base members 110, since the outer peripheral surface of each base member 110 is provided with a plurality of protruding parts 111 and a plurality of recessed parts 112, the arrangement mode can increase the structural strength of each base member 110 through the arrangement of the protruding parts 111 and the recessed parts 112, and can absorb the deformation pressure of surrounding rock through the deformation of the base member 110; also, by the protrusion 111 of each base member 110 being engaged with the recess 112 of the adjacent base member 110, the overall structural strength of the frame-type tunnel supporting structure 100 can be increased.
In summary, the frame type tunnel supporting structure 100 can release deformation pressure of surrounding rock, reduce structural internal force of the supporting structure, thereby ensuring stability of the supporting structure, avoiding damage of the supporting structure, ensuring safety of construction operators, and reducing construction cost.
Further, referring to fig. 1 to 6, in the present embodiment, when the protruding portion 111 and the recessed portion 112 of each base member 110 are provided, the protruding portion 111 may be provided as arc-shaped protrusions, and the recessed portion 112 may be provided as arc-shaped recesses. In such a manner as to increase the structural strength of the base member 110; in addition, in such an arrangement, the contact area between the adjacent two base members 110 can be increased, and the overall strength of the frame-type tunnel supporting structure 100 can be improved. Similarly, the corners of each protruding portion 111 and each recessed portion 112 are provided with a transition arc.
In addition, the outer peripheral surface of each base member 110 is provided in such a manner as to be corrugated.
Further, referring to fig. 1 to 6, in the present embodiment, based on the above, the arc-shaped protrusions 111 and the arc-shaped recesses 112 are formed, so when the base members 110 are disposed, each base member 110 is made of a steel corrugated plate, and each base member 110 may be a rectangular frame made of a steel corrugated plate. It should be noted that, under the condition that two adjacent base members 110 are kept to have contact surfaces that meet the requirement, the structural shape of each base member 110 may be adaptively adjusted to adapt to different tunnel supports.
Referring to fig. 1 to 6, in the present embodiment, since the plurality of base members 110 extend along the extending direction of the tunnel and are sequentially disposed around the inner peripheral surface of the tunnel, when the plurality of base members 110 are rectangular members, after the plurality of base members 110 are sequentially disposed around the inner peripheral surface of the tunnel, a gap exists between two adjacent base members 110, so that in order to improve the contact stability of the two adjacent base members 110, the frame-type tunnel supporting structure 100 further includes a plurality of filling members 130; each filler 130 is used to fill the gap between two adjacent base members 110.
After the plurality of base members 110 are connected to form the frame-type tunnel supporting structure 100, the gap is located relatively outside the frame-type tunnel supporting structure 100, and the gap gradually increases from the inside of the tunnel to the outside, so that, in order to increase the wedging degree of the filler 130 and the gap during filling, the filler 130 may be arranged in a wedge shape corresponding to the gap according to the structural shapes of the two adjacent base members 110 and the profile of the gap formed.
Further, referring to fig. 1 to 6, in the present embodiment, the plurality of connecting members 120 are all connecting bolts; in order to connect two adjacent base members 110 by means of a connecting bolt, a plurality of connecting holes 113 are formed on the abutting surface of each base member 110 for abutting against the adjacent base member 110, and the plurality of connecting holes 113 are sequentially arranged at intervals along the extending direction of the base member 110; each of the connection holes 113 is for corresponding communication with the connection hole 113 of the adjacent base member 110 to mount a connection bolt. It should be noted that, since the convex portion 111 of each base member 110 is engaged with the concave portion 112 of the adjacent base member 110, when the connection holes 113 are provided, a portion of the connection holes 113 of each base member 110 may be located at the convex portion 111, and the remaining portion of the connection holes 113 may be located at the concave portion 112. Thereby, the connection hole 113 on the convex portion 111 of each base member 110 is correspondingly and conductively fitted with the connection hole 113 on the concave portion 112 of the adjacent base member 110 to mount the connection bolt.
Further, referring to fig. 1 to 6, based on the above description, it should be further noted that, after the surrounding rock supported by the frame-type tunnel supporting structure 100 is stabilized, in order to improve the supporting stability of the frame-type tunnel supporting structure, the gap between any two adjacent base members 110 is filled with concrete. Thereby, the gap between any two adjacent foundation members 110 is a solid structure, and the structural gap of the frame type tunnel supporting structure 100 can be eliminated, so that the strength of the frame type tunnel supporting structure can be improved, and the supporting stability can be improved.
The present invention is not limited to the above embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present invention are intended to be included in the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a frame-type tunnel supporting construction which characterized in that:
the frame type tunnel supporting structure comprises a plurality of base members and a plurality of connecting pieces;
the outer peripheral surface of each base member is provided with a plurality of convex parts and a plurality of concave parts; the plurality of protruding parts and the plurality of recessed parts are arranged in a staggered manner along the axis of the base member, and each protruding part and each recessed part are annularly arranged around the axis of the base member;
the plurality of base members extend along the extending direction of the tunnel and are sequentially arranged around the inner peripheral surface of the tunnel, and the axes of the base members extend along the radial direction of the tunnel; the raised portion of each base member mates with the recessed portion of an adjacent base member; any two adjacent base members are connected through the connecting piece;
the base members are rectangular members, and each base member is a rectangular frame made of steel corrugated plates; the frame type tunnel supporting structure further comprises a plurality of filling pieces;
each filling piece is used for filling a gap between two adjacent base members;
the filling piece is wedge-shaped.
2. The framed tunnel support structure of claim 1, wherein:
the connecting pieces are all connecting bolts; each base member is used for being provided with a plurality of connecting holes on the abutting surface of the adjacent base member, and the connecting holes are sequentially arranged at intervals along the extending direction of the base member; each of the connection holes is used for being correspondingly conducted with the connection hole of the adjacent base member so as to mount the connection bolt.
3. The framed tunnel support structure of claim 2, wherein:
a portion of the connection holes of each base member are located in the protrusions, and the remaining portion of the connection holes are located in the recesses.
4. A framed tunnel support structure according to any of claims 1-3, wherein:
the protruding portions are arc-shaped protrusions, and the recessed portions are arc-shaped recesses.
5. The framed tunnel support structure of claim 4, wherein:
and transition arcs are arranged at the corners of each protruding part and each recessed part.
6. A framed tunnel support structure according to any of claims 1-3, wherein:
the gaps between any two adjacent foundation members are filled with concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280552.9A CN113982633B (en) | 2021-10-29 | 2021-10-29 | Frame type tunnel supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280552.9A CN113982633B (en) | 2021-10-29 | 2021-10-29 | Frame type tunnel supporting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113982633A CN113982633A (en) | 2022-01-28 |
| CN113982633B true CN113982633B (en) | 2024-04-12 |
Family
ID=79745179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111280552.9A Active CN113982633B (en) | 2021-10-29 | 2021-10-29 | Frame type tunnel supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113982633B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2547077A (en) * | 1976-06-08 | 1978-11-30 | Habib P | Segmented pipe |
| KR200417221Y1 (en) * | 2006-03-09 | 2006-05-25 | 조남준 | Precast Arch Panel having Corrugated Multi Plate |
| CN207131423U (en) * | 2017-08-02 | 2018-03-23 | 河南工程学院 | A kind of steel bracket for tunnel support |
| CN109458196A (en) * | 2019-01-15 | 2019-03-12 | 西南交通大学 | A kind of environment-friendlydurable durable single shell lining structure suitable for Support System in Soft Rock Tunnels |
| CN111119948A (en) * | 2019-11-26 | 2020-05-08 | 中铁第一勘察设计院集团有限公司 | Rock burst prevention supporting structure of high-ground-stress hard rock tunnel and construction method of rock burst prevention supporting structure |
-
2021
- 2021-10-29 CN CN202111280552.9A patent/CN113982633B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2547077A (en) * | 1976-06-08 | 1978-11-30 | Habib P | Segmented pipe |
| KR200417221Y1 (en) * | 2006-03-09 | 2006-05-25 | 조남준 | Precast Arch Panel having Corrugated Multi Plate |
| CN207131423U (en) * | 2017-08-02 | 2018-03-23 | 河南工程学院 | A kind of steel bracket for tunnel support |
| CN109458196A (en) * | 2019-01-15 | 2019-03-12 | 西南交通大学 | A kind of environment-friendlydurable durable single shell lining structure suitable for Support System in Soft Rock Tunnels |
| CN111119948A (en) * | 2019-11-26 | 2020-05-08 | 中铁第一勘察设计院集团有限公司 | Rock burst prevention supporting structure of high-ground-stress hard rock tunnel and construction method of rock burst prevention supporting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113982633A (en) | 2022-01-28 |
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Effective date of registration: 20220907 Address after: 610200 Research Institute of Southwest Jiaotong University, phase VI industrial concentration zone, Southwest Airport Economic Development Zone, Shuangliu District, Chengdu, Sichuan Applicant after: CHENGDU TIANYOU TUNNELKEY CO.,LTD. Address before: 610200 room 701, floor 7, No. 29, Jiaoyuan Road, Gaofeng community, Yixin street, Shuangliu District, Chengdu, Sichuan Applicant before: Chengdu future smart Tunnel Technology Co.,Ltd. |
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