CN203835407U - Arch lining slight-cracking reinforcing system for existing tunnel - Google Patents
Arch lining slight-cracking reinforcing system for existing tunnel Download PDFInfo
- Publication number
- CN203835407U CN203835407U CN201420230633.7U CN201420230633U CN203835407U CN 203835407 U CN203835407 U CN 203835407U CN 201420230633 U CN201420230633 U CN 201420230633U CN 203835407 U CN203835407 U CN 203835407U
- Authority
- CN
- China
- Prior art keywords
- arch
- lining
- model
- shaped steel
- steel band
- 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.)
- Expired - Lifetime
Links
- 238000005336 cracking Methods 0.000 title abstract description 7
- 230000003014 reinforcing effect Effects 0.000 title abstract 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- 239000011435 rock Substances 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 21
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000004080 punching Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 6
- 201000010099 disease Diseases 0.000 description 4
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 4
- 238000007596 consolidation process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Landscapes
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model relates to an arch lining slight-cracking reinforcing system for an existing tunnel. According to the existing tunnel, the problems of cracking of a lining and dropping of blocks cause great damage to traveling safety. According to the arch lining slight-crack reinforcing system, an arch of the existing concrete lining is paved with a reinforcing mesh. A plurality of W-shaped steel bands are longitudinally arranged in the reinforcing mesh along the tunnel around the arch. Arch rods bitten into surrounding rock in the radial direction are arranged on the W-shaped steel band positions. The ends of the anchor rods are fixed to the W-shaped steel bands through anchor rod base plates and connection bolts; holes are punched between the anchor rods of each W-shaped steel band position in a spaced mode and arch grouting pipes are embedded in the holes and used for grouting on the back of the lining, and therefore the holes are filled; longitudinally-connected reinforcing bars are welded between the W-shaped steel bands. According to the arch lining slight-crack reinforcing system, grouting is conducted on the back of the lining, the holes are filled, the W-shaped steel bands which are small in occupied space and high in strength are selected to be matched with the reinforcing mesh and the anchor rods to form the comprehensive reinforcing system, the unserious cracking damage to the arch is removed once for all, construction is convenient, investment is reduced, and the system is safe and reliable.
Description
Technical field
the utility model belongs to tunnel traffic field of engineering technology, is specifically related to a kind of existing tunnel Arch lining reinforcement system that slightly ftractures.
Background technology
According to incompletely statistics, China railways, in the traffic engineering such as highway, reach tens thousand of seats in the tunnel quantity of building, especially more than ten years recently, along with speedway, the great development of railway, build especially a large amount of construction of tunnel, and a large amount of tunnels of building in mountain area in early days are still using, what have reaches projected life at that time, due to construction quality problem, corrosive environment, concrete durability, the impact of all factors such as strata pressure, a lot of tunnels have produced lining cutting cracking, the diseases such as flake-off piece, especially lining cutting arch more easily occurs, as develop as one pleases, can minor illness form great trouble, traffic safety is caused to significant damage, and tunnel do not dismantle rebuild condition, therefore can only carry out suitable consolidation process according to the disease order of severity, select economical rationality, easy construction, treatment measures are very crucial safely and reliably.
Summary of the invention
The purpose of this utility model is to provide a kind of existing tunnel Arch lining reinforcement system that slightly ftractures, and effectively processes the concrete cracking disease of tunnel lining.
The technical scheme that the utility model adopts is:
A kind of existing tunnel Arch lining reinforcement system that slightly ftractures, is characterized in that:
Lay steel mesh reinforcement in existing concrete-lined arch, in steel mesh reinforcement, be vertically arranged with the W steel band of model of multiple tracks ring arch along tunnel, some anchor poles of squeezing into country rock are radially set at W steel band of model place, and anchor pole end is fixed in W steel band of model by roof bolt plate and connecting bolt;
Between the anchor pole at per pass W steel band of model place, interval punching is embedded with for tamp empty arch Grouting Pipe at lining cutting back-grouting.
Between W steel band of model, be welded with longitudinal connecting reinforcement.
The utlity model has following advantage:
The utility model is to lining cutting back-grouting, tamp cavity, select the little W steel band of model again with higher-strength that takes up room to coordinate steel mesh reinforcement, anchor pole to form integrative consolidation system, can carry out the radical cure of putting things right once and for all to the not too serious cracking disease in arch, there is the advantages such as construction is simple, saving is invested, safe and reliable.
Brief description of the drawings
Fig. 1 is the utility model cross-sectional drawing.
Fig. 2 is the utility model layout plan.
Fig. 3 is the utility model fragmentary detail view.
In figure, the existing concrete lining of 1-, 2-anchor pole, 3-steel mesh reinforcement, 4-arch Grouting Pipe, 5-W steel band of model, the longitudinal connecting reinforcement of 6-, 7-roof bolt plate, 8-connecting bolt.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
A kind of existing tunnel Arch lining that the utility model relates to reinforcement system that slightly ftractures, being applicable to arch, tunnel ftractures relatively not too seriously but the operating mode that must process, the compages such as anchor, net, band, slip casting are adopted, or local arrange continuously longitudinal in tunnel as required, little, easy construction takes up room.Concrete structure is: steel mesh reinforcement 3 is laid in the arch in existing concrete lining 1, the interior W steel band of model 5 that is vertically arranged with multiple tracks ring arch along tunnel of steel mesh reinforcement 3, some anchor poles of squeezing into country rock 2 are radially set at W steel band of model 5 places, and anchor pole 2 ends are fixed in W steel band of model 5 by roof bolt plate 7 and connecting bolt 8; Between the anchor pole 2 at per pass W steel band of model 5 places, interval punching is embedded with for tamp empty arch Grouting Pipe 4 at lining cutting back-grouting, carries out lining cutting back-grouting tamp cavity by arch Grouting Pipe 4, and liner structure and country rock are out of shape jointly, eliminates stress concentrated.Between W steel band of model 5, be welded with longitudinal connecting reinforcement 6.The utility model selects the little W steel band of model 5 again with higher-strength that takes up room to coordinate steel mesh reinforcement 3, anchor pole 2 to form integrative consolidation system, W steel band of model 5 is along the suitably distance laying of tunnel longitudinal separation, between W steel band of model 5, adopt longitudinal connecting reinforcement 6 to weld, and form firmly overall structure by backing plate 7, connecting bolt 8 with anchor pole 2.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (2)
1. the existing tunnel Arch lining reinforcement system that slightly ftractures, is characterized in that:
Steel mesh reinforcement (3) is laid in arch in existing concrete lining (1), in steel mesh reinforcement (3), be vertically arranged with the W steel band of model (5) of multiple tracks ring arch along tunnel, locate to arrange some anchor poles of squeezing into country rock (2) radially in W steel band of model (5), anchor pole (2) end is fixed in W steel band of model (5) by roof bolt plate (7) and connecting bolt (8);
Between the anchor pole (2) that per pass W steel band of model (5) is located, interval punching is embedded with for tamp empty arch Grouting Pipe (4) at lining cutting back-grouting.
2. a kind of existing tunnel Arch lining according to claim 1 reinforcement system that slightly ftractures, is characterized in that:
Between W steel band of model (5), be welded with longitudinal connecting reinforcement (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230633.7U CN203835407U (en) | 2014-05-07 | 2014-05-07 | Arch lining slight-cracking reinforcing system for existing tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230633.7U CN203835407U (en) | 2014-05-07 | 2014-05-07 | Arch lining slight-cracking reinforcing system for existing tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835407U true CN203835407U (en) | 2014-09-17 |
Family
ID=51513263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230633.7U Expired - Lifetime CN203835407U (en) | 2014-05-07 | 2014-05-07 | Arch lining slight-cracking reinforcing system for existing tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835407U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939110A (en) * | 2014-05-07 | 2014-07-23 | 中铁第一勘察设计院集团有限公司 | Strengthening system for slight cracking of existing tunnel arch portion lining |
| CN104389321A (en) * | 2014-10-31 | 2015-03-04 | 中国电建集团成都勘测设计研究院有限公司 | Safety structure of underground building |
| CN106640126A (en) * | 2016-10-11 | 2017-05-10 | 中铁隧道集团有限公司 | Processing method for extremely-high geostress soft rock tunnel arch wall lining cracking damage |
| CN110159312A (en) * | 2019-06-26 | 2019-08-23 | 洛阳理工学院 | A kind of restorative procedure of stalk dome-shaped tunnel-liner |
-
2014
- 2014-05-07 CN CN201420230633.7U patent/CN203835407U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939110A (en) * | 2014-05-07 | 2014-07-23 | 中铁第一勘察设计院集团有限公司 | Strengthening system for slight cracking of existing tunnel arch portion lining |
| CN104389321A (en) * | 2014-10-31 | 2015-03-04 | 中国电建集团成都勘测设计研究院有限公司 | Safety structure of underground building |
| CN106640126A (en) * | 2016-10-11 | 2017-05-10 | 中铁隧道集团有限公司 | Processing method for extremely-high geostress soft rock tunnel arch wall lining cracking damage |
| CN110159312A (en) * | 2019-06-26 | 2019-08-23 | 洛阳理工学院 | A kind of restorative procedure of stalk dome-shaped tunnel-liner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140917 |
|
| CX01 | Expiry of patent term |