CN103321657A - Reinforced concrete tunnel reinforcement method - Google Patents
Reinforced concrete tunnel reinforcement method Download PDFInfo
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- CN103321657A CN103321657A CN2013102551216A CN201310255121A CN103321657A CN 103321657 A CN103321657 A CN 103321657A CN 2013102551216 A CN2013102551216 A CN 2013102551216A CN 201310255121 A CN201310255121 A CN 201310255121A CN 103321657 A CN103321657 A CN 103321657A
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- gusset plate
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Abstract
The invention discloses a reinforced concrete tunnel reinforcement method. The method includes: pretreating the inner wall of a tunnel; cutting a steel plate into reinforcing plates equal in area; making fastening bolt holes and glue holes on the reinforcing plates; subjecting the reinforcing plates to arcing and rust prevention; arranging the reinforcing plates on the inner wall of the tunnel through chemical bolts; welding the edges of each two adjacent reinforcing plates to form a closed circular lining layer; pouring epoxy resin glue into gaps between the reinforcing plates and the inner wall of the tunnel from the glue holes of the reinforcing plate; after the epoxy resin glue solidifies, welding the bolts and the reinforcing plates, polishing and performing antiseptic treatment. The method has the advantages that construction is convenient, semi-mechanical construction is available, and construction efficiency is greatly improved; compared with the traditional tunnel reinforcement method, the method retains the diameter of the original tunnel basically while normal service functions of the tunnel are unaffected; after the steel plate lining is added, stress condition of the tunnel structure can be improved significantly and leakage of the tunnel can be improved effectively.
Description
Technical field
The present invention relates to highway, railway, hydraulic tunnel, especially relate to a kind of reinforced concrete tunnel reinforcement means.
Background technology
Highway, railway, hydraulic tunnel are in use understood the defective that occurs in various degree owing to a variety of causes (as geology reason or the reason of structural member own): as primary structural component cracking or leakage increase etc.For guaranteeing tunnel safety, prolong the tunnel safe operating life, need in time handle the defective that tunnel occurs.
The main reinforcement means of reinforced concrete tunnel commonly used at present has inside to smear epoxy mortar, affixing steel plate band and penstock steel lining method etc.
It mainly is to the reparation of tunnel inner wall defect that the epoxy mortar method is smeared in inside, does not improve the tunnel structure force-bearing situation substantially; Affixing steel plate strip coating method monolithic steel plate bar can not be very big, otherwise the stickup location is very difficult, and the stickup back also is not easy closely knit to hollowing position supplementary irrigation, and have little effect to improving tunnel sealing; Penstock steel lining method is at the reinforced concrete tunnel inwall steel pipe to be installed, concrete perfusion between steel pipe and concrete lining then, and this kind method will be dwindled more than the tunnel internal diameter 20cm at least.
Owing to the Yuan Dongjing that dwindles that can not be bigger after some tunnel requirement maintenance, in order to avoid influence its normal function of use, so, how can the tunnel that go wrong be reinforced and make its safe handling, that can try one's best again does not dwindle the hole directly, and the construction party that tunnel is reinforced is a difficult problem.
Summary of the invention
The object of the present invention is to provide a kind of under not obvious prerequisite of dwindling tunnel hole footpath the reinforcement means to reinforced concrete tunnel.
For achieving the above object, the present invention can take following technical proposals:
Reinforced concrete tunnel reinforcement means of the present invention, it comprises following construction sequence:
The first step will be repaired behind the reinforced concrete tunnel inner wall depression branch cutter hair, and, skin portion loosening to the top layer carries out hacking with the angle grinding machine to be cleared up, and with giant the tunnel inwall is rinsed well at last;
Second step, according to the internal diameter of tunnel and the length that needs reinforcement, the steel plate that 6mm is thick is cut into the gusset plate of 3.35m * 1.25m area, and offer fastening screw keyhole and glue filling opening at every gusset plate, bolt hole spacing 0.5m * 0.5m, quincuncial arrangement, glue filling opening spacing 1.0m * 1.0m installs the encapsulating mouth on each glue filling opening;
The 3rd step, the gusset plate of cutting out is rolled into the arc plate of 3.2m diameter by the radian of tunnel, at first the surfaces externally and internally of gusset plate being done derusting by sandblasting handles, require rust cleaning post-reinforcing plate surface roughness to reach Ra40～70 μ m, then the gusset plate convex surface is carried out application with common rustproof paint, concave surface is carried out application with anticorrosive paint;
The 4th step, the gusset plate handled well is temporary fixed with jack after, arrange with chemical anchor bolts and to be installed on the good tunnel inwall of preliminary treatment, and the edge between the two adjacent gusset plates is welded the ring lining layer of a sealing of formation;
In the 5th step, from the glue filling opening of every gusset plate poured into slit between gusset plate and the tunnel inwall, the perfusion sequence requirement was from the glue filling opening upwards perfusion successively of bottommost, until the monoblock steel plate is all filled with hydrophilic perfusion type epoxide-resin glue;
In the 6th step, after the epoxy resin adhesive curing of perfusion, bolt and the encapsulating mouth that will expose outside gusset plate cut away, and bolt and gusset plate are welded together, and do for supplement preservative treatment after the polishing and get final product.
The invention has the advantages that easy construction, but the semi-mechanization construction has improved efficiency of construction greatly; Compare with traditional reinforcing tunnel method, do not change the footpath, hole of original tunnel substantially, do not influence its normal function of use; After increasing the inner steel lining layer, can obviously improve the force-bearing situation of tunnel structure, and can effectively improve the seepage phenomenon of tunnel.
Description of drawings
Fig. 1 is the section structure schematic diagram after the tunnel consolidation process of the present invention.
Fig. 2 is A portion enlarged drawing among Fig. 1.
Fig. 3 is the structure chart of monolithic gusset plate among Fig. 1.
The specific embodiment
Reinforced concrete tunnel reinforcement means of the present invention comprises following construction sequence:
The first step will be repaired behind the reinforced concrete tunnel inner wall depression branch cutter hair, and, skin portion loosening to the top layer carries out hacking with the angle grinding machine to be cleared up, and with giant the tunnel inwall is rinsed well at last;
Second step, according to the internal diameter of tunnel and the length that needs reinforcement, the steel plate that 6mm is thick is cut into the gusset plate 1 of 3.35m * 1.25m area, and offer fastening screw keyhole 2 and glue filling opening 3 at every gusset plate 1, bolt hole spacing 0.5m * 0.5m, quincuncial arrangement, glue filling opening spacing 1.0m * 1.0m, encapsulating mouth 7 is installed, as shown in Figure 3 on each glue filling opening 3;
The 3rd step, the gusset plate of cutting out 1 is rolled into the arc plate of 3.2m diameter by the radian of tunnel, at first the surfaces externally and internally of gusset plate 1 being done derusting by sandblasting handles, require rust cleaning post-reinforcing plate 1 surface roughness to reach Ra40～70 μ m, then the gusset plate convex surface is carried out application with common rustproof paint, concave surface is carried out application with anticorrosive paint;
The 4th step, after the gusset plate 1 usefulness jack of handling well is temporary fixed, be installed on the good tunnel inwall 5 of preliminary treatment with chemical anchor bolts 4 arrangements, and the edge between the two adjacent gusset plates is welded, form the ring lining layer of a sealing, as shown in Figure 1 and Figure 2;
The 5th step poured into hydrophilic perfusion type epoxide-resin glue in the slit between gusset plate 1 and the tunnel inwall 5 from the encapsulating mouth 7 that the glue filling opening 3 of every gusset plate is installed, form structure glue-line 6, and generally speaking, the thickness of structure glue-line 6 is 1～5mm; For guaranteeing that structure glue is full of in the slit between gusset plate 1 and the tunnel inwall 5, adopts the pressure injection mode of 0.6MPa to carry out encapsulating;
In the 6th step, after the epoxy resin adhesive curing, chemical anchor bolts 4 and the encapsulating mouth 7 that will expose outside gusset plate cut away, and chemical anchor bolts 4 and gusset plate 1 are welded together, and do for supplement preservative treatment after the polishing and get final product.
After adopting this method to reinforce, can improve the structure stress situation of reinforced concrete tunnel, play the effect of structural strengthening, play the antiseepage effect simultaneously, satisfy normal instructions for use.
Claims (1)
1. reinforced concrete tunnel reinforcement means, it is characterized in that: it comprises following construction sequence:
The first step will be repaired behind the reinforced concrete tunnel inner wall depression branch cutter hair, and, skin portion loosening to the top layer carries out hacking with the angle grinding machine to be cleared up, and with giant the tunnel inwall is rinsed well at last;
Second step, according to the internal diameter of tunnel and the length that needs reinforcement, the steel plate that 6mm is thick is cut into the gusset plate of 3.35m * 1.25m area, and offer fastening screw keyhole and glue filling opening at every gusset plate, bolt hole spacing 0.5m * 0.5m, quincuncial arrangement, glue filling opening spacing 1.0m * 1.0m installs the encapsulating mouth on each glue filling opening;
The 3rd step, the gusset plate of cutting out is rolled into the arc plate of 3.2m diameter by the radian of tunnel, at first the surfaces externally and internally of gusset plate being done derusting by sandblasting handles, require rust cleaning post-reinforcing plate surface roughness to reach Ra40～70 μ m, then the gusset plate convex surface is carried out application with common rustproof paint, concave surface is carried out application with anticorrosive paint;
The 4th step, the gusset plate handled well is temporary fixed with jack after, arrange with chemical anchor bolts and to be installed on the good tunnel inwall of preliminary treatment, and the edge between the two adjacent gusset plates is welded the ring lining layer of a sealing of formation;
In the 5th step, from the glue filling opening of every gusset plate poured into slit between gusset plate and the tunnel inwall, the perfusion sequence requirement was from the glue filling opening upwards perfusion successively of bottommost, until the monoblock steel plate is all filled with hydrophilic perfusion type epoxide-resin glue;
In the 6th step, after the epoxy resin adhesive curing of perfusion, bolt and the encapsulating mouth that will expose outside gusset plate cut away, and bolt and gusset plate are welded together, and do for supplement preservative treatment after the polishing and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102551216A CN103321657A (en) | 2013-06-25 | 2013-06-25 | Reinforced concrete tunnel reinforcement method |
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| CN2013102551216A CN103321657A (en) | 2013-06-25 | 2013-06-25 | Reinforced concrete tunnel reinforcement method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060590A (en) * | 2014-06-27 | 2014-09-24 | 北京中水科海利工程技术有限公司 | Reinforced seepage-proofing structure for pressure diversion tunnel and construction method for reinforced seepage-proofing structure |
| CN105003286A (en) * | 2015-08-05 | 2015-10-28 | 中国十九冶集团有限公司 | Protective cover for tunnel arch bar planting and wall protection construction |
| CN105019928A (en) * | 2015-08-05 | 2015-11-04 | 中国十九冶集团有限公司 | Construction method for tunnel arch bar planting and wall protection |
| JP2019019505A (en) * | 2017-07-13 | 2019-02-07 | 積水化学工業株式会社 | Tunnel rehabilitation method and rock bolt |
| CN113699962A (en) * | 2021-08-19 | 2021-11-26 | 湖北省交通规划设计院股份有限公司 | Steel water delivery gallery structure suitable for ship lock centralized water delivery system and construction method |
Citations (5)
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|---|---|---|---|---|
| GB393656A (en) * | 1931-12-12 | 1933-06-12 | Harold Albert Clarke | Reinforced concrete lining to pit shafts, tunnels and the like |
| JP3483823B2 (en) * | 2000-02-16 | 2004-01-06 | 日章アステック株式会社 | Reinforcement method of concrete wall in tunnel |
| JP2008075393A (en) * | 2006-09-22 | 2008-04-03 | Jfe Engineering Kk | Steel panel, assembly thereof, and tunnel reinforcing structure and reinforcing method using the same |
| JP2008223427A (en) * | 2007-03-15 | 2008-09-25 | Nippon Steel Corp | Concrete-filled steel segment |
| CN101749033A (en) * | 2008-12-08 | 2010-06-23 | 国网新源控股有限公司回龙分公司 | Reinforcement technology of reinforced concrete tunnel lining steel plate |
-
2013
- 2013-06-25 CN CN2013102551216A patent/CN103321657A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB393656A (en) * | 1931-12-12 | 1933-06-12 | Harold Albert Clarke | Reinforced concrete lining to pit shafts, tunnels and the like |
| JP3483823B2 (en) * | 2000-02-16 | 2004-01-06 | 日章アステック株式会社 | Reinforcement method of concrete wall in tunnel |
| JP2008075393A (en) * | 2006-09-22 | 2008-04-03 | Jfe Engineering Kk | Steel panel, assembly thereof, and tunnel reinforcing structure and reinforcing method using the same |
| JP2008223427A (en) * | 2007-03-15 | 2008-09-25 | Nippon Steel Corp | Concrete-filled steel segment |
| CN101749033A (en) * | 2008-12-08 | 2010-06-23 | 国网新源控股有限公司回龙分公司 | Reinforcement technology of reinforced concrete tunnel lining steel plate |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104060590A (en) * | 2014-06-27 | 2014-09-24 | 北京中水科海利工程技术有限公司 | Reinforced seepage-proofing structure for pressure diversion tunnel and construction method for reinforced seepage-proofing structure |
| CN104060590B (en) * | 2014-06-27 | 2017-01-04 | 北京中水科海利工程技术有限公司 | The reinforcement leakage preventing structure of a kind of pressure diversion tunnel and construction method thereof |
| CN105003286A (en) * | 2015-08-05 | 2015-10-28 | 中国十九冶集团有限公司 | Protective cover for tunnel arch bar planting and wall protection construction |
| CN105019928A (en) * | 2015-08-05 | 2015-11-04 | 中国十九冶集团有限公司 | Construction method for tunnel arch bar planting and wall protection |
| JP2019019505A (en) * | 2017-07-13 | 2019-02-07 | 積水化学工業株式会社 | Tunnel rehabilitation method and rock bolt |
| JP7010610B2 (en) | 2017-07-13 | 2022-01-26 | 積水化学工業株式会社 | Tunnel rehabilitation method and lock bolt |
| CN113699962A (en) * | 2021-08-19 | 2021-11-26 | 湖北省交通规划设计院股份有限公司 | Steel water delivery gallery structure suitable for ship lock centralized water delivery system and construction method |
| CN113699962B (en) * | 2021-08-19 | 2022-09-27 | 湖北省交通规划设计院股份有限公司 | Steel water delivery gallery structure suitable for ship lock centralized water delivery system and construction method |
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Application publication date: 20130925 |