CN213711059U - High-durability composite tunnel lining structure - Google Patents
High-durability composite tunnel lining structure Download PDFInfo
- Publication number
- CN213711059U CN213711059U CN202022518179.3U CN202022518179U CN213711059U CN 213711059 U CN213711059 U CN 213711059U CN 202022518179 U CN202022518179 U CN 202022518179U CN 213711059 U CN213711059 U CN 213711059U
- Authority
- CN
- China
- Prior art keywords
- lining
- masonry
- tunnel
- steel
- bodies
- 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.)
- Active
Links
Images
Abstract
The utility model particularly relates to a combined type tunnel lining structure of high durability has solved current tunnel lining in use durability not good enough, the problem that the crack influences traffic safety easily appears. A high-durability composite tunnel lining structure comprises first lining bodies, wherein two first lining bodies extend inwards to form second lining bodies, and a third lining body is arranged between the two second lining bodies; steel arch assemblies are arranged in the primary support of the first lining masonry and the primary support of the second lining masonry, and a plurality of small advanced guide pipes are further fixed on the steel arch assemblies in the primary support of the first lining masonry; the secondary lining of the first lining masonry, the secondary lining of the second lining masonry and the secondary lining of the third lining masonry are all made of steel fiber concrete. The utility model discloses an improve the purpose of tunnel lining durability, stable in structure struts effectually, has effectively promoted the security that the traffic travel, has the considerable advantage of economic benefits.
Description
Technical Field
The utility model relates to a highway tunnel engineering technical field specifically is a combined type tunnel lining structure of high durability.
Background
In highway tunneling, tunnel lining refers to a permanent structure that supports and maintains the long-term stability and durability of a tunnel. Common tunnel lining materials are: concrete and reinforced concrete, stone concrete, aggregate stone, concrete precast block, shotcrete, and the like.
However, practice shows that the existing tunnel lining has poor durability and is easy to crack in use, so that the water seepage phenomenon is caused, great potential safety hazard is brought, and the traffic safety is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve present tunnel lining in use durability not good enough, the easy problem that the crack influences traffic safety that appears, provide a high durability's combined type tunnel lining structure.
The utility model discloses an adopt following technical scheme to realize:
a high-durability composite tunnel lining structure comprises a plurality of anchor rods which are anchored in tunnel surrounding rocks along the radial direction; the tunnel lining structure further comprises first lining masonry bodies arranged at the head end and the tail end of the tunnel, wherein the two first lining masonry bodies extend inwards along the axial direction and are provided with second lining masonry bodies, and a third lining masonry body is arranged between the two second lining masonry bodies; the steel arch assembly fixed with the anchor rod is arranged in the primary support of the first lining masonry and in the primary support of the second lining masonry, and a plurality of small advanced guide pipes which are arranged axially and distributed at equal intervals along the circumferential direction are further fixed on the steel arch assembly positioned in the primary support of the first lining masonry; the secondary lining of the first lining masonry, the secondary lining of the second lining masonry and the secondary lining of the third lining masonry are all made of steel fiber concrete.
When the lining structure is used, aiming at the head end and the tail end of the tunnel with poor surrounding rock conditions, the steel arch assembly and the advanced small guide pipe of the first lining masonry can obviously improve the supporting effect of the first lining masonry, improve the stability of the lining structure at the head end and the tail end of the tunnel and avoid traffic accidents caused by collapse of surrounding rocks; furthermore, the utility model discloses set up the second lining brickwork with two first lining brickwork along the axial inwards extension, the steel bow member assembly through the second lining brickwork is strutted near tunnel head end and tail end part's country rock to the better tunnel interlude of country rock wholeness between two second lining brickwork sets up the third lining brickwork, on the basis of guaranteeing tunnel structure stability, has reduced construction cost. And simultaneously, the utility model discloses well secondary lining of first lining brickwork, secondary lining of second lining brickwork, secondary lining of third lining brickwork all adopt steel fiber concrete structure, have avoided the concrete to peel off, the appearance of hole groove disease, have reduced secondary lining concrete and have appeared early fissured probability, have increased substantially the durability of secondary lining structure.
The steel arch assembly comprises a plurality of arch steel frames which are distributed at equal intervals along the axial direction and a plurality of longitudinal connecting ribs which are arranged along the axial direction and distributed at equal intervals along the circumferential direction, and the longitudinal connecting ribs are fixed on the inner arch surface of the arch steel frames in a crossed manner.
Each leading small conduit positioned at the head end of the tunnel is in an inclined shape with a low head and a high tail, and the head end of each leading small conduit is welded on the arched steel frame positioned at the head end of the tunnel; each leading small pipe at the tail end of the tunnel is in an inclined shape with a high head and a low tail, and the tail end of each leading small pipe is welded on the arched steel frame at the tail end of the tunnel.
This structural design is convenient to pour into the surrounding rock internal with the thick liquid along leading little pipe, makes thick liquid and surrounding rock crack fully contact and solidify, and with original loose soil granule or crack cementing one-tenth whole, form a brand-new consolidation body that intensity is big, waterproof performance is good, promoted the structural stability of tunnel head end and tail end surrounding rock by a wide margin.
The included angle between each advanced small conduit and the axis of the tunnel is 6-10 degrees.
The thicknesses of the secondary lining of the first lining masonry, the secondary lining of the second lining masonry and the secondary lining of the third lining masonry are all 21cm-28 cm.
This structural design has reduced the steel fibre concrete volume of tunnel excavation volume and secondary lining by a wide margin, on the basis that improves the secondary lining durability, has reduced the utility model discloses a construction cost.
The arched steel frame is made of I-shaped steel.
The arrangement distance of the anchor rods is 0.5m-1.2 m; the arrangement distance of the longitudinal connecting ribs is 1m-1.2 m.
The utility model has the advantages of reasonable design reliably, realized the purpose that improves tunnel lining durability, avoided the concrete to peel off, the emergence of pit slot disease moreover, reduced secondary lining concrete appear the probability of early crack, further improved secondary lining structure's durability, stable in structure simultaneously, it is effectual to strut, has improved tunnel country rock's structural stability, and then has effectively promoted the security that the traffic was gone; furthermore, through the lining structure of each tunnel section of rational design, reduce secondary lining's thickness, reduced the construction cost of this combined type lining structure, have the advantage that the construction is convenient, economic benefits is considerable.
Drawings
FIG. 1 is a schematic structural view of a first lining masonry of the present invention;
FIG. 2 is a schematic structural view of a second lining masonry of the present invention;
FIG. 3 is a schematic structural view of a third lining masonry of the present invention;
fig. 4 is a schematic view of the overall structure of the present invention.
In the figure, 1-anchor rod, 2-primary support of first lining masonry, 3-primary support of second lining masonry, 4-advanced small conduit, 5-secondary lining of first lining masonry, 6-secondary lining of second lining masonry, 7-secondary lining of third lining masonry, 8-arched steel frame, 9-longitudinal connecting bar, and 10-primary support of third lining masonry.
Detailed Description
A high-durability composite tunnel lining structure comprises a plurality of anchor rods 1 which are anchored in tunnel surrounding rocks along the radial direction; the tunnel lining structure further comprises first lining masonry bodies arranged at the head end and the tail end of the tunnel, wherein the two first lining masonry bodies extend inwards along the axial direction and are provided with second lining masonry bodies, and a third lining masonry body is arranged between the two second lining masonry bodies; steel arch assemblies fixed with the anchor rods 1 are arranged inside the primary support 2 of the first lining masonry and inside the primary support 3 of the second lining masonry, and a plurality of small advanced guide pipes 4 which are arranged axially and distributed at equal intervals along the circumferential direction are further fixed on the steel arch assemblies positioned inside the primary support 2 of the first lining masonry; the secondary lining 5 of the first lining masonry, the secondary lining 6 of the second lining masonry and the secondary lining 7 of the third lining masonry are all made of steel fiber concrete.
The steel arch assembly comprises a plurality of arch steel frames 8 which are distributed at equal intervals along the axial direction and a plurality of longitudinal connecting ribs 9 which are arranged along the axial direction and distributed at equal intervals along the circumferential direction, wherein the longitudinal connecting ribs 9 are fixed on the inner arch surface of each arch steel frame 8 in a crossed manner. Each leading small conduit 4 positioned at the head end of the tunnel is in an inclined shape with a low head and a high tail, and the head end of each leading small conduit is welded on an arched steel frame 8 positioned at the head end of the tunnel; each leading small pipe 4 at the tail end of the tunnel is in an inclined shape with a high head and a low tail, and the tail end of each leading small pipe is welded on the arched steel frame 8 at the tail end of the tunnel. The included angle between each advanced small catheter 4 and the axis of the tunnel is 6-10 degrees. The thicknesses of the secondary lining 5 of the first lining masonry, the secondary lining 6 of the second lining masonry and the secondary lining 7 of the third lining masonry are all 21cm-28 cm. The arched steel frame 8 is made of I-shaped steel. The arrangement distance of the anchor rods 1 is 0.5m-1.2 m; the arrangement distance of the longitudinal connecting ribs 9 is 1m-1.2 m.
In the specific implementation process, the secondary lining 5 of the first lining masonry, the secondary lining 6 of the second lining masonry and the secondary lining 7 of the third lining masonry are all formed by molding steel fiber concrete; the thickness and the steel fiber doping amount of the secondary lining 5 of the first lining masonry, the secondary lining 6 of the second lining masonry and the secondary lining 7 of the third lining masonry can be properly adjusted according to the grade condition of the surrounding rock.
Claims (7)
1. A high-durability composite tunnel lining structure comprises a plurality of anchor rods (1) which are anchored in tunnel surrounding rocks along the radial direction; the method is characterized in that: the tunnel lining structure further comprises first lining masonry bodies arranged at the head end and the tail end of the tunnel, wherein the two first lining masonry bodies extend inwards along the axial direction and are provided with second lining masonry bodies, and a third lining masonry body is arranged between the two second lining masonry bodies; steel arch assemblies fixed with the anchor rods (1) are arranged inside the primary support (2) of the first lining masonry and inside the primary support (3) of the second lining masonry, and a plurality of small advanced guide pipes (4) which are axially arranged and are distributed at equal intervals along the circumferential direction are further fixed on the steel arch assemblies positioned inside the primary support (2) of the first lining masonry; the secondary lining (5) of the first lining masonry, the secondary lining (6) of the second lining masonry and the secondary lining (7) of the third lining masonry are all made of steel fiber concrete.
2. A high durability composite tunnel lining structure as claimed in claim 1, wherein: the steel arch assembly comprises a plurality of arch steel frames (8) which are distributed at equal intervals along the axial direction and a plurality of longitudinal connecting ribs (9) which are arranged along the axial direction and distributed at equal intervals along the circumferential direction, wherein the longitudinal connecting ribs (9) are fixed on the inner arch surface of each arch steel frame (8) in a crossed mode.
3. A high durability composite tunnel lining structure as claimed in claim 2, wherein: each leading small conduit (4) positioned at the head end of the tunnel is in an inclined shape with a low head and a high tail, and the head end of each leading small conduit is welded on an arched steel frame (8) positioned at the head end of the tunnel; each leading small conduit (4) positioned at the tail end of the tunnel is in an inclined shape with a high head and a low tail, and the tail end of each leading small conduit is welded on an arched steel frame (8) positioned at the tail end of the tunnel.
4. A high durability composite tunnel lining structure as claimed in claim 3, wherein: the included angle between each advanced small conduit (4) and the axis of the tunnel is 6-10 degrees.
5. A high durability composite tunnel lining structure as claimed in claim 1, wherein: the thicknesses of the secondary lining (5) of the first lining masonry, the secondary lining (6) of the second lining masonry and the secondary lining (7) of the third lining masonry are all 21-28 cm.
6. A high durability composite tunnel lining structure as claimed in claim 2, wherein: the arched steel frame (8) is made of I-shaped steel.
7. A high durability composite tunnel lining structure as claimed in claim 2, wherein: the arrangement distance of the anchor rods (1) is 0.5m-1.2 m; the arrangement distance of the longitudinal connecting ribs (9) is 1m-1.2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022518179.3U CN213711059U (en) | 2020-11-04 | 2020-11-04 | High-durability composite tunnel lining structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022518179.3U CN213711059U (en) | 2020-11-04 | 2020-11-04 | High-durability composite tunnel lining structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213711059U true CN213711059U (en) | 2021-07-16 |
Family
ID=76802506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022518179.3U Active CN213711059U (en) | 2020-11-04 | 2020-11-04 | High-durability composite tunnel lining structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213711059U (en) |
-
2020
- 2020-11-04 CN CN202022518179.3U patent/CN213711059U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203639942U (en) | Arched retaining wall | |
| CN206309406U (en) | A kind of inclined shaft is become a full member the structure of caunching in hole | |
| CN205387940U (en) | Combined type soft rock roadway support system | |
| CN108589723A (en) | Band only starches the segmentation hollow grouting anchor of the segmenting slip casting of branch sleeve | |
| CN107246273A (en) | Deep tunnel wire rope net rubber concrete spraying support structure and its construction method | |
| CN103410161A (en) | Slant grouting control steel anchor pipe frame and construction method thereof | |
| WO2020151347A1 (en) | Prefabricated prestressed anchor structure | |
| CN208793021U (en) | A kind of shield tunnel anti-floating control structure | |
| CN209100050U (en) | A kind of prefabricated lining segment of self waterproofing shield tunnel | |
| CN105862990A (en) | Prefabricated assembly well wall structure and construction method thereof | |
| CN104563101B (en) | A kind of composite pile structure as agent structure column and construction method thereof | |
| CN106894830A (en) | A kind of double curvature arch supporting construction and construction method for underground engineering | |
| CN112482409B (en) | Combined supporting device and construction method thereof | |
| CN213711059U (en) | High-durability composite tunnel lining structure | |
| CN108678790A (en) | A kind of frictional drainage anchor rod of fibrous material | |
| CN108867639A (en) | The replaceable anchor pole of overall length inflatable gib | |
| CN208633857U (en) | A kind of frictional drainage anchor rod of fibrous material | |
| CN110566253A (en) | reinforcing structure of small-clear-distance tunnel and construction method | |
| CN206694056U (en) | A kind of mine anchor rod with Telescopic | |
| CN208701667U (en) | Band only starches the segmentation hollow grouting anchor of the segmenting slip casting of connection sleeve | |
| CN206144570U (en) | Float cobble tunnel advance support structure | |
| CN214464254U (en) | Stable supporting structure for tunnel exit of loose and collapsed body covering layer tunnel | |
| CN204435364U (en) | A kind of composite pile structure as agent structure column | |
| CN113530559A (en) | Reinforcing method and reinforcing structure for water-rich sand layer geological shield receiving end | |
| CN106801609A (en) | A kind of method of use jack up ∏ shape steel tubes concrete support system gob side entry retaining |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |