CN205477651U - Wrong platform disease punishment structure of shield tunnel - Google Patents
Wrong platform disease punishment structure of shield tunnel Download PDFInfo
- Publication number
- CN205477651U CN205477651U CN201620217926.0U CN201620217926U CN205477651U CN 205477651 U CN205477651 U CN 205477651U CN 201620217926 U CN201620217926 U CN 201620217926U CN 205477651 U CN205477651 U CN 205477651U
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- jurisdiction
- faulting
- section
- slab ends
- reinforcing bar
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Abstract
The utility model discloses a wrong platform disease punishment structure of shield tunnel, including wrong bench lift section of jurisdiction, cuo tai sink the section of jurisdiction, implant reinforcing bar, reinforcing bar net, repair mortar and rubber waterstop, wherein, wrong bench lift and has seted up a plurality of blind holes on the section of jurisdiction, the implantation reinforcing bar through a plurality of blind holes on the section of jurisdiction is lifted to wrong bench and bar planting glue with the section of jurisdiction anchor, reinforcing bar net be connected with the spot welding of implantation reinforcing bar, the repair mortar fill in in cuo tai position department that reinforcing bar and reinforcing bar net was repaired, mistake platform sink the section of jurisdiction and hug closely one side anchor of repairing the mortar and have the rubber waterstop. The utility model discloses simple structure, construction convenience, with low costs, mechanical properties is good, can effectively punish the wrong platform disease of shield tunnel, has better technological economic benefits.
Description
Technical field:
This utility model belongs to shield tunnel damage repair field, is specifically related to a kind of shield tunnel faulting of slab ends Defects Treatment structure.
Background technology:
Faulting of slab ends is one of disease common in metro shield tunneling, shield duct piece causes the size between same ring adjacent block section of jurisdiction or between different rings section of jurisdiction deviation occur due to reasons such as grout injection control are improper and consolidation service is lack of standardization, and hoop faulting of slab ends and longitudinal faulting of slab ends i.e. occur.If section of jurisdiction faulting of slab ends disease is repaired not in time, edge, section of jurisdiction then can be made to ftracture, damaged and collapse the quality problems such as angle, tunnel spillage, infiltration is caused time serious, shield ventral brush extrusion damage, cause shield tail spillage etc., therefore a kind of speed of application of invention is fast, it is effective to punish, and can be effectively improved the faulting of slab ends treatment structures of structural-load-carrying capacity, have preferable technical economic benefit.
At present in metro shield tunneling, faulting of slab ends damage repair mainly has a following several method: for the faulting of slab ends discrepancy in elevation slight faulting of slab ends less than 15mm, and by collapsing angle, the residual concrete of breakage is cleaned out rear hierarchical block and filled up epoxy resin mortar；For bigger faulting of slab ends disease, main employing cement mixing mortar is repaired, and faulting of slab ends face is implanted bolt simultaneously, to increase the draw knot force to chipping filler, it is achieved the punishment to faulting of slab ends.Above-mentioned several method all has it not enough: for slight faulting of slab ends, fill up epoxy resin mortar used in car operation repeatedly vibration repairing position can be made to produce fatigue, thus be easily caused and come off；For more serious faulting of slab ends, only implanting bolt and to be equipped with cement mixing mortar bonding power the most powerful, it is relatively low to repair structure integrated carrying ability, and punishment effect is the most notable.
Utility model content:
For solving above-mentioned technical problem, this utility model provides a kind of simple in construction, and easy construction is quick, cost is relatively low, and mechanical property is good, can effectively punish Shield-bored tunnels disease, improve the shield tunnel faulting of slab ends Defects Treatment structure of service function, there is preferable technical economic benefit.
This utility model adopts the following technical scheme that and realizes:
A kind of shield tunnel faulting of slab ends Defects Treatment structure, including lifting section of jurisdiction, faulting of slab ends sinking section of jurisdiction on faulting of slab ends, implanting reinforcing bar, bar-mat reinforcement, mending mortar and rubber fastening band；Wherein,
Lifting on described faulting of slab ends and offer some blind holes on section of jurisdiction, described reinforcing bar of implanting lifts section of jurisdiction anchoring by lifting the some blind holes on section of jurisdiction and anchoring adhesive on faulting of slab ends on faulting of slab ends；Described bar-mat reinforcement is connected with implanting reinforcing bar spot welding；Described mending mortar is filled up and is being implanted reinforcing bar and the gap, faulting of slab ends position of bar-mat reinforcement repairing；The side anchoring of mending mortar is close in described faulting of slab ends sinking section of jurisdiction rubber fastening band.
This utility model is further improved by, and the described a diameter of 6mm implanting reinforcing bar, model is HRB400 level.
This utility model is further improved by, and the described high tensile reinforcement cross that bar-mat reinforcement 4 is diameter 3mm is welded, and mesh size is 100mm × 100mm.
This utility model is further improved by, and described implantation reinforcing bar is lifted in quincuncial arrangement on section of jurisdiction on faulting of slab ends, and implantation depth is 5-6cm, and steel bar end is less than the concrete surface of faulting of slab ends sinking section of jurisdiction.
This utility model is further improved by, and described rubber fastening band is EPDM waterstop, and thickness is 2mm, and it is fixed by rivet on the faulting of slab ends sinking section of jurisdiction being close to mending mortar side.
Compared with prior art, shield tunnel faulting of slab ends treatment structures described in the utility model has the following characteristics that
1, repairing serosity is that CARNO100-II high molecular polymer is equipped with the material such as high-performance cement and quartz sand and is made, and has powerful caking property, can develop into practical intensity, do not ftracture, peel off in the short time；Resistance to water penetration, good water-proof effect.
2, treatment structures uses reinforcing bar+bar-mat reinforcement+CARNO100-II to repair serosity, reinforcing bar and the anchoring of section of jurisdiction concrete, three the most mutually bonds, improve the overall mechanical property of structure, repeatedly vibrating during additionally can effectively preventing car operation makes repairing position produce fatigue, causes the problem that mending mortar block comes off；
3, rubber fastening band is thick 2mm EPDM waterstop, it is anchored at side, sinking section of jurisdiction by rivet, can effectively prevent subsoil water etc. after serosity reparation to be repaired in the fissure of displacement leaks into Tunnel, this treatment structures has quick construction conveniently the most on the whole, punish effective, the advantage such as the good life-span length of structural stability, cost performance height, good economy performance.
Accompanying drawing illustrates:
Fig. 1: the vertical section schematic diagram of shield tunnel faulting of slab ends Defects Treatment structure；
Fig. 2: implant reinforcing bar quincuncial arrangement figure and bar-mat reinforcement.
In figure: lifting section of jurisdiction, 2-faulting of slab ends sinking section of jurisdiction on 1-faulting of slab ends, 3-implants reinforcing bar, 4-bar-mat reinforcement, 5-mending mortar, 6-rubber fastening band.
Detailed description of the invention:
Detailed description of the invention of the present utility model given below, it should be noted that this utility model is not limited to specific examples below, and all equivalents done on the basis of technical scheme each fall within protection domain of the present utility model.
As illustrated in fig. 1 and 2, this utility model relates to a kind of shield tunnel faulting of slab ends Defects Treatment structure, including lifting section of jurisdiction 1, faulting of slab ends sinking section of jurisdiction 2 on faulting of slab ends, implanting reinforcing bar 3, bar-mat reinforcement 4, mending mortar 5 and rubber fastening band 6；Wherein, described faulting of slab ends is lifted and on section of jurisdiction 1, offers some blind holes, implant reinforcing bar 3 and lift section of jurisdiction 1 on the some blind holes on section of jurisdiction 1 and anchoring adhesive and faulting of slab ends anchor by lifting on faulting of slab ends；Bar-mat reinforcement 4 is connected with implanting reinforcing bar 3 spot welding；Mending mortar is filled up and is being implanted reinforcing bar 3 and the gap, faulting of slab ends position of bar-mat reinforcement repairing；Faulting of slab ends sinking section of jurisdiction is close to the side of mending mortar 5 and is fixed with rubber fastening band 6 by rivet.
Wherein, described implantation bar diameter is 6mm, and model is HRB400 level, implants reinforcing bar and lifts section of jurisdiction concrete surface quincuncial arrangement upper, and implantation depth is 5-6cm, and steel bar end is less than sinking section of jurisdiction concrete surface.
Described bar-mat reinforcement is that the high tensile reinforcement cross of 3mm is welded, mesh size 100mm × 100mm, is connected with implantation reinforcing bar spot welding simultaneously, and mesh sheet specific size shape customizes according to the actual faulting of slab ends order of severity.
Described repairing serosity uses CARNO100-II high molecular polymer, cement and quartz sand to make.
Described rubber fastening band is EPDM waterstop, and thickness is 2mm, is fixed on faulting of slab ends sinking section of jurisdiction by rivet and is close to the side of mending mortar.
Specific construction step:
Step 1: reject and crushed loose concrete block on faulting of slab ends section of jurisdiction, explosion surface is carried out dabbing, then cleans out；Oil stain for complete removing surface, section of jurisdiction, it is ensured that section of jurisdiction is good with the bonding of later stage repairing mortar；
Step 2: quincunx boring in lifting region, section of jurisdiction with 100mm spacing with the electric hammer that drill bit is 8mm on generation faulting of slab ends; drilling depth 7-8cm; it is implanted into anchoring adhesive in hole behind clear hole; it is subsequently implanted reinforcing bar; implantation depth about 5-6cm; steel bar end is less than faulting of slab ends sinking section of jurisdiction concrete surface, reserved 5mm protective layer；
Step 3: lay the monolayer bar-mat reinforcement that mesh size is 100mm × 100mm that a diameter of 3mm high tensile reinforcement cross is welded within lifting section of jurisdiction concrete surface on faulting of slab ends, fixes with implantation reinforcement welding simultaneously；
Step 4: the thick ethylene propylene terpolymer water stop band of 2mm is inserted in the side being close to mending mortar in faulting of slab ends sinking section of jurisdiction, makes it be close to inside the concrete of section of jurisdiction with rivet is fixing simultaneously；
Step 5: blow off floating dust with hair-dryer, prewets concrete base layer before coating, is thoroughly impregnated with hole with water.High Performance Mortar spatula deployed for CARBO100-II will be used to repair, to be repaired after mortar surface spray a small amount of water the most again and make it moist, more once smear reparation, be repeatedly trimmed to top layer, treat that it is dried；
Step 6: the section of jurisdiction water saturates that will repair, with butadiene-styrene latex: cement=1:3, then be equipped with appropriate water be made into repairing slurry so that it is color, close to the color on surface, former reparation section of jurisdiction, is smeared repeatedly；After drying, with fine sand skin polishing repairing face, make mend and section of jurisdiction overall leveling, smooth integral, to reduce the aberration of mend and section of jurisdiction body.
The following is the specific embodiment that inventor provides, so that the technical solution of the utility model is further explained explanation.
Embodiment:
This embodiment is Xi'an geothermic field Shield, stratum residing for this tunnel is positioned in strong yellow soil and farinose argillic horizon, owing to underground utilities breakage causes interval section of jurisdiction, 1# service channel east side to occur retention of excessive fluid behind, gush sand, the loss of a large amount of silts makes to be formed around section of jurisdiction cavity and section of jurisdiction unbalance stress, cause 481-511 endless tube sheet that faulting of slab ends disease in various degree occurs, maximum hoop faulting of slab ends amount reaches 2cm, maximum longitudinal faulting of slab ends about 8cm.
For preventing edge, section of jurisdiction from ftractureing further, damaged and generation collapse angle, even cause tunnel spillage infiltration etc., the present embodiment have employed a kind of tunnel faulting of slab ends treatment structures of the present invention as shown in Fig. 1～Fig. 2, and Specific construction comprises the following steps.
Step 1: reject and crushed loose concrete block on faulting of slab ends section of jurisdiction, explosion surface is carried out dabbing, then cleans out；Oil stain for complete removing surface, section of jurisdiction, it is ensured that section of jurisdiction is good with the bonding of later stage repairing mortar；
Step 2: quincunx boring in lifting region, section of jurisdiction with 100mm spacing with the electric hammer that drill bit is 8mm on generation faulting of slab ends; drilling depth 7-8cm; it is implanted into anchoring adhesive in hole behind clear hole; it is subsequently implanted reinforcing bar; implantation depth about 5-6cm; steel bar end is less than faulting of slab ends sinking section of jurisdiction concrete surface, reserved 5mm protective layer；
Step 3: lay the monolayer bar-mat reinforcement that mesh size is 100mm × 100mm that a diameter of 3mm high tensile reinforcement cross is welded within lifting section of jurisdiction concrete surface on faulting of slab ends, fixes with implantation reinforcement welding simultaneously；
Step 4: the thick ethylene propylene terpolymer water stop band of 2mm is inserted in the side being close to mending mortar in faulting of slab ends sinking section of jurisdiction, makes it be close to inside the concrete of section of jurisdiction with rivet is fixing simultaneously；
Step 5: blow off floating dust with hair-dryer, prewets concrete base layer before coating, is thoroughly impregnated with hole with water.High Performance Mortar spatula deployed for CARBO100-II will be used to repair, to be repaired after mortar surface spray a small amount of water the most again and make it moist, more once smear reparation, be repeatedly trimmed to top layer, treat that it is dried；
Step 6: the section of jurisdiction water saturates that will repair, with butadiene-styrene latex: cement=1:3, then be equipped with appropriate water be made into repairing slurry so that it is color, close to the color on surface, former reparation section of jurisdiction, is smeared repeatedly；After drying, with fine sand skin polishing repairing face, make mend and section of jurisdiction overall leveling, smooth integral, to reduce the aberration of mend and section of jurisdiction body.
The treatment structures of the present embodiment completes reparation to the section of jurisdiction that faulting of slab ends disease occurs quickly and easily, reinforcing bar+bar-mat reinforcement+CARNO100-II is used to repair the repairing structure of serosity, section of jurisdiction overall structure bearing capacity is greatly improved, avoid section of jurisdiction crush further and collapse the generations such as angle, during its powerful cohesive force overcomes later stage car operation simultaneously, vibration makes repairing position produce fatigue repeatedly, the problem causing mending mortar block to come off, punishes respond well.
Claims (5)
1. a shield tunnel faulting of slab ends Defects Treatment structure, it is characterized in that, including lifting section of jurisdiction (1), faulting of slab ends sinking section of jurisdiction (2) on faulting of slab ends, implanting reinforcing bar (3), bar-mat reinforcement (4), mending mortar (5) and rubber fastening band (6)；Wherein,
Lifting on described faulting of slab ends and offer some blind holes on section of jurisdiction (1), described implantation reinforcing bar (3) lifts section of jurisdiction (1) anchoring by lifting the some blind holes on section of jurisdiction (1) and anchoring adhesive on faulting of slab ends on faulting of slab ends；Described bar-mat reinforcement (4) is connected with implanting reinforcing bar (3) spot welding；Described mending mortar (5) fills up the gap, faulting of slab ends position repaired in implantation reinforcing bar (3) and bar-mat reinforcement (4)；The side anchoring of mending mortar (5) is close in described faulting of slab ends sinking section of jurisdiction (2) rubber fastening band (6).
2. shield tunnel faulting of slab ends Defects Treatment structure as claimed in claim 1, it is characterised in that a diameter of 6mm of described implantation reinforcing bar (3), model is HRB400 level.
3. shield tunnel faulting of slab ends Defects Treatment structure as claimed in claim 1, it is characterised in that the described high tensile reinforcement cross that bar-mat reinforcement (4) is diameter 3mm is welded, and mesh size is 100mm × 100mm.
4. shield tunnel faulting of slab ends Defects Treatment structure as claimed in claim 2, it is characterized in that, described implantation reinforcing bar (3) is lifted on section of jurisdiction (1) in quincuncial arrangement on faulting of slab ends, implantation depth is 5-6cm, and steel bar end is less than the concrete surface of faulting of slab ends sinking section of jurisdiction (2).
5. shield tunnel faulting of slab ends Defects Treatment structure as claimed in claim 1, it is characterized in that, described rubber fastening band (6) is EPDM waterstop, thickness is 2mm, and it is close on the faulting of slab ends sinking section of jurisdiction (2) of mending mortar (5) side by rivet is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217926.0U CN205477651U (en) | 2016-03-21 | 2016-03-21 | Wrong platform disease punishment structure of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620217926.0U CN205477651U (en) | 2016-03-21 | 2016-03-21 | Wrong platform disease punishment structure of shield tunnel |
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| Publication Number | Publication Date |
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| CN205477651U true CN205477651U (en) | 2016-08-17 |
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| CN201620217926.0U Expired - Fee Related CN205477651U (en) | 2016-03-21 | 2016-03-21 | Wrong platform disease punishment structure of shield tunnel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354872A (en) * | 2017-08-16 | 2017-11-17 | 中国冶集团有限公司 | A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method |
| CN114151103A (en) * | 2021-11-30 | 2022-03-08 | 北京城建重工桥隧工程技术有限公司 | Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces |
-
2016
- 2016-03-21 CN CN201620217926.0U patent/CN205477651U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107354872A (en) * | 2017-08-16 | 2017-11-17 | 中国冶集团有限公司 | A kind of variable cross-section fish-bellied type cast-in-situ box girder concrete faulting of slab ends control structure and construction method |
| CN114151103A (en) * | 2021-11-30 | 2022-03-08 | 北京城建重工桥隧工程技术有限公司 | Slab staggering steel lining reinforcing structure suitable for slab staggering diseases of subway tunnel duct pieces |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |