CN106837384B - Rhegma Disease Treatment structure and method are removed in tunnel-liner - Google Patents
Rhegma Disease Treatment structure and method are removed in tunnel-liner Download PDFInfo
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- CN106837384B CN106837384B CN201710209901.5A CN201710209901A CN106837384B CN 106837384 B CN106837384 B CN 106837384B CN 201710209901 A CN201710209901 A CN 201710209901A CN 106837384 B CN106837384 B CN 106837384B
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- pricker
- backing plate
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- reinforcement
- pricker nail
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- 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
- E21D11/107—Reinforcing elements therefor; Holders for the reinforcing elements
-
- 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (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 present invention relates to a kind of tunnel-liner removing rhegma Disease Treatment structure and methods, it include: positioning pricker nail, circumferential reinforcement, longitudinal reinforcement, lock foot pricker nail, pricker follows closely fixed structure and gunite concrete, the circumferential reinforcement and longitudinal reinforcement form steel mesh, circumferential reinforcement is anchored in lining side wall by lock foot pricker nail, positioning pricker nail is anchored on the adjacent longitudinal reinforcement of steel mesh by being set to the pricker nail fixed structure at the top of it, the pricker nail fixed structure includes backing plate, the backing plate both ends include bending part, the bending part is sticked on two longitudinal reinforcements, the gunite concrete is by circumferential reinforcement, longitudinal reinforcement, lock foot pricker nail and pricker nail fixed structure package, further relate to removing rhegma Disease Treatment method.It can effectively solve the problems, such as that rhegma disease is removed in tunnel-liner under the premise of safeguarding the existing liner structure safety in tunnel and function, meeting tunnel clearance requirement using structure of the invention, engineering value and social benefit are obvious, are worthy of popularization.
Description
Technical field
The present invention relates to a kind of Curing of Tunnel Diseases structures, and in particular to a kind of tunnel-liner removing rhegma Disease Treatment knot
Structure further relates to its regulation method, belongs to Tunnel Engineering technical field.
Background technique
With the iterative method of railway construction in China, more and more established tunnels face various disease problems, to guarantee
Tunnel lining structure and safety of railway traffic and function use, and must expend vast resources and go regulation disease.It is long for the age
Remote established tunnel, the tunnel-liner in high-ground stress location are easy to happen interior crowded deformation after by the effect of larger pressure from surrounding rock, cause
Vault, arch springing position lining cracking peel off the appearance of the diseases problems such as chip off-falling.Tunnel-liner cracking chip off-falling seriously causes Lining cracks
Place loses resist torque ability in hinged state, seriously threatens tunnel lining structure and safety of railway traffic, and the disease has
The characteristics of developing at any time and accumulating necessarily leads to even more serious engineering accident if not being subject to regulation processing.
Summary of the invention
It is asked it is an object of the invention to solve common tunnel vault, arch springing position lining cracking, peel off the diseases such as chip off-falling
Topic safeguards the existing liner structure safety in tunnel and function, is based on above-mentioned engineering disease problem, existing based on few disturbance, low influence
Liner structure and the principle for meeting tunnel clearance requirement, propose structure of the invention, and concrete scheme is as follows:
A kind of tunnel-liner removing rhegma Disease Treatment structure, including positioning pricker nail, circumferential reinforcement, longitudinal reinforcement, lock foot
Pricker nail, pricker nail fixed structure and gunite concrete, the circumferential reinforcement and longitudinal reinforcement form steel mesh, and circumferential reinforcement is by lock foot
Pricker nail is anchored in lining side wall, and positioning pricker nail is anchored at the adjacent vertical of steel mesh by being set to the pricker nail fixed structure at the top of it
To on reinforcing bar, the pricker nail fixed structure includes backing plate, and the backing plate both ends include bending part, and the bending part is sticked in two
On longitudinal reinforcement, the gunite concrete wraps up circumferential reinforcement, longitudinal reinforcement, lock foot pricker nail and pricker nail fixed structure.The knot
Structure is based on few disturbance, the low principle for influencing existing liner structure and meeting tunnel clearance requirement.
Further, pricker nail fixed structure further includes pricker oncomelania cap in the middle part of backing plate, set on backing plate two sides
Backing plate anchor bar, the backing plate anchor bar are arranged in parallel with the longitudinal reinforcement, and are set to the pad by corner welding line
On plate, the positioning pricker nail is fixed by pricker oncomelania cap.
Further, a longitudinal reinforcement is spaced between the backing plate and backing plate.
Further, the positioning pricker nail insertion position includes the anchoring adhesive in 15 hole Φ and injection hole；The positioning pricker
Diameter about 12mm is followed closely, length is honest and kind less than existing lining cutting, indulges circumferential direction spacing 50-60cm.Positioning pricker nail squeeze into existing lining cutting 15 ~
20cm and existing lining cutting must not be punched, in order to avoid puncturing existing splash guard, gas tunnel work area gas be caused to be revealed.Before pricker nail insertion
Processing of rust removing should be carried out, bottom hole is quickly inserted into without rebound using rotation or hammer driven mode.
Further, the circumferential reinforcement diameter about 20mm arranges spacing 15-20cm；The longitudinal reinforcement diameter is about
12mm arranges spacing 15-20cm.
Further, the lock foot pricker nail is anchored in existing lining side wall bottom, diameter about 20mm, every root long 50-60cm；
The lock foot pricker nail is connect by straight grain sleeve with circumferential reinforcement, longitudinal pitch 50cm.
Further, the gunite concrete uses C30, thickness about 10cm.
Further, the backing plate anchor bar diameter about 10mm, every root long 40-50cm, is welded in backing plate two sides；Every piece
Backing plate corresponds to 2 backing plate anchor bars.
Further, the corner welding line h=5mm, backing plate anchor bar and pad contact section two sides are all welded.
Further, the pricker oncomelania cap uses M12 nut.
The invention further relates to the method for using above-mentioned Disease Treatment structure to carry out Disease Treatment, the method is based on disturbing less
Dynamic, the low principle for influencing existing liner structure and meeting tunnel clearance requirement, the specific steps are as follows:
(1) after setting up rail arch pre-reinforcement, gap and backfill situation after punching detection lining cutting；
(2) when needing slip casting, reserved injected hole is chiseled, first mud jacking controls grouting pressure within 0.5MPa, mud jacking sequence
It applies from the bottom up, carries out top mud jacking again after lower layer's grout cures reach some strength, when mud jacking sets observation point observation lining
Build situation of change；
(3) existing lining cutting surface is cleared up, cuts rhegma concrete；
(4) it drills, and by insertion positioning pricker nail after design spacing injection anchoring adhesive；
(5) first pneumatically placed concrete, Concrete Thick about 3cm；
(6) tunneling boring arranges steel mesh, binds circumferential reinforcement and longitudinal reinforcement forms steel mesh, circumferential reinforcement utilizes lock foot
Pricker nail is anchored in lining side wall；
(7) production pricker follows closely fixed structure, the bending part at backing plate both ends is arranged, so that bending part is sticked in two longitudinal reinforcements
On,
Pricker oncomelania cap is anchored with pricker nail by pricker nail fixed structure is whole, using backing plate and backing plate anchor bar, corner welding line,
Pricker oncomelania cap will position pricker nail and be anchored on steel mesh, and backing plate anchor bar is arranged in parallel with the longitudinal reinforcement, and passes through patch
Fillet weld is set on the backing plate, and backing plate anchor bar and pad contact section two sides are all welded；
(8) construction of shotcrete, multiple pneumatically placed concrete to design thickness are carried out；
(9) when needing slip casting, spray concrete carries out secondary grouting after reaching design strength, controls grouting pressure 0.5-1.0MPa.
Beneficial effects of the present invention are as follows:
It, can be the present invention is based on few disturbance, the low principle design for influencing existing liner structure and meeting tunnel clearance requirement
The existing liner structure safety in maintenance tunnel and function effectively solve tunnel-liner removing and split under the premise of meeting tunnel clearance requirement
Damage disease problem.
Detailed description of the invention
Fig. 1 is that pricker of the present invention follows closely Bolt net and jet structure section structural schematic diagram；
Fig. 2 is that pricker of the present invention follows closely Bolt net and jet structure section partial structural diagram；
Fig. 3 is that pricker of the present invention follows closely tunneling boring arragement construction schematic diagram；
Fig. 4 is pricker of the present invention nail and steel mesh schematic view of facade structure；
Fig. 5 is that pricker of the present invention follows closely schematic view of facade structure；
Fig. 6 is that pricker of the present invention follows closely planar structure schematic diagram；
Each label in figure are as follows: 1- positions pricker nail；2- backing plate；3- circumferential reinforcement；4- longitudinal reinforcement；5- locks foot pricker nail；6- spray
Penetrate concrete；7- backing plate anchor bar；8- corner welding line；9- pricker oncomelania cap.
Specific embodiment
Below by drawings and examples, invention is further described in detail, but protection scope of the present invention is not limited to
In the content.
As shown in figures 1 to 6, rhegma Disease Treatment structure is removed in a kind of tunnel-liner of the present embodiment, by positioning pricker nail 1, pad
Plate 2, circumferential reinforcement 3, longitudinal reinforcement 4, lock foot pricker follow closely 5, gunite concrete 6, backing plate anchor bar 7, corner welding line 8, pricker oncomelania
Cap 9 forms, and circumferential reinforcement and longitudinal reinforcement form steel mesh, and circumferential reinforcement is anchored in lining side wall by lock foot pricker nail, positions
Pricker nail is anchored at two of steel mesh by backing plate 2, backing plate anchor bar 7, corner welding line 8, the pricker oncomelania cap 9 at the top of it
On longitudinal reinforcement, backing plate both ends include bending part, and the bending part is sticked on adjacent longitudinal reinforcement, backing plate anchor bar and institute
It states longitudinal reinforcement to be arranged in parallel, and is set on the backing plate by corner welding line, the positioning pricker nail is fixed by pricker oncomelania cap, is padded
A longitudinal reinforcement is spaced between plate and backing plate, gunite concrete wraps up above structure.
Wherein, positioning pricker nail 1 uses HRB400 reinforcing bar, diameter 12mm, every 25 ~ 30cm(of root long screw thread segment length 8cm) and answer
It is honest and kind less than existing lining cutting, indulge circumferential direction spacing 50-60cm；It squeezes into existing 15 ~ 20cm of lining cutting and existing lining cutting must not be punched, in order to avoid
Puncture existing splash guard, gas tunnel work area gas is caused to be revealed；15 hole Φ is bored when positioning pricker 1 construction of nail, after injecting anchoring adhesive
It is inserted into；Processing of rust removing should be carried out before pricker nail insertion, bottom hole is quickly inserted into without rebound using rotation or hammer driven mode.Backing plate
2 use 100mm*230mm*8mm steel plate.Circumferential reinforcement 3 uses HRB400 reinforcing bar, and diameter 20mm arranges 15 ~ 20cm of spacing.It is vertical
HRB400 reinforcing bar is used to reinforcing bar 4, diameter 12mm arranges 15 ~ 20cm of spacing.Lock foot pricker nail 5 is anchored in existing lining side wall bottom
Portion, using HRB400 reinforcing bar, diameter 20mm, every 50 ~ 60cm of root long；It is connect with circumferential reinforcement 3 using 20 straight grain sleeve of Φ,
Longitudinal pitch 50cm；25 hole Φ is bored when locking 5 construction of nail of foot pricker, is inserted into after injecting anchoring adhesive；It should derust before pricker nail insertion
Processing is quickly inserted into bottom hole without rebound using rotation or hammer driven mode.Gunite concrete 6 uses C30, thick 10cm, net spray
Headroom should meet the requirement of tunnel limit -2A in tunnel after concrete.The use HPB300 reinforcing bar of backing plate anchor bar 7, diameter 10mm, often
Root long 40-50cm is welded in 2 two sides of backing plate；Stretch out backing plate two sides 15-20cm, to connect with longitudinal reinforcement 4, every piece of backing plate 2
Corresponding 2 backing plate anchor bars 7.8 height 5mm of corner welding line, backing plate anchor bar 7 and 2 contact-segment two sides of backing plate are all welded.
Pricker oncomelania cap 9 uses M12 nut.In addition, for gas tunnel, Disease Treatment construction should strictly by gas work area construction requirement into
Row, construction equipment must use explosion-proof type.
The present invention is based on few disturbances, the low principle for influencing existing liner structure and meeting tunnel clearance requirement, use step
It is as follows:
(1) after setting up rail arch pre-reinforcement, gap and backfill situation after punching detection lining cutting；
(2) reserved injected hole is chiseled (when needing slip casting), first mud jacking controls grouting pressure within 0.5MPa, and mud jacking is suitable
Sequence applies from the bottom up, carries out top mud jacking again after lower layer's grout cures reach some strength, and mud jacking Shi Yingshe observation point is seen
Lining cutting situation of change is surveyed to stop in time if any exception and take necessary jury；
(3) existing lining cutting removing surface, cuts rhegma concrete；
(4) it drills, and by insertion positioning pricker nail 1 after design spacing injection anchoring adhesive；
(5) first pneumatically placed concrete, thick 3cm；
(6) tunneling boring arranges steel mesh, binds circumferential reinforcement 3 and longitudinal reinforcement 4 forms steel mesh, circumferential reinforcement utilizes lock
Foot pricker nail 5 is anchored in lining side wall；
(7) billet and its Accessory Members are made, it is followed closely with pricker using nut and is anchored, backing plate 2 and its attached structure are utilized
Part backing plate anchor bar 7, corner welding line 8, pricker oncomelania cap 9 will position pricker nail 1 and be anchored on steel mesh；
(8) it carries out gunite concrete 6 to construct, multiple pneumatically placed concrete to design thickness；
(9) it is sprayed (when needing slip casting) after concrete reaches design strength and carries out secondary grouting, control grouting pressure 0.5-1.0MPa.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of method for carrying out Disease Treatment using tunnel-liner removing rhegma Disease Treatment structure, which is characterized in that tunnel
Lining cutting removing rhegma Disease Treatment structure includes: positioning pricker nail, circumferential reinforcement, longitudinal reinforcement, lock foot pricker nail, pricker nail fixed structure
And gunite concrete, the circumferential reinforcement and longitudinal reinforcement form steel mesh, circumferential reinforcement is anchored in lining cutting side by lock foot pricker nail
In wall, positioning pricker nail is anchored on the adjacent longitudinal reinforcement of steel mesh by being set to the pricker nail fixed structure at the top of it, the pricker
Following closely fixed structure includes backing plate, and the backing plate both ends include bending part, and the bending part is sticked on two longitudinal reinforcements, described
Gunite concrete wraps up circumferential reinforcement, longitudinal reinforcement, lock foot pricker nail and pricker nail fixed structure；Specific step is as follows:
(1) after setting up rail arch pre-reinforcement, gap and backfill situation after punching detection lining cutting；
(2) when needing slip casting, reserved injected hole is chiseled, first mud jacking controls grouting pressure within 0.5MPa, and mud jacking sequence is under
It up applies, carries out top mud jacking again after lower layer's grout cures reach some strength, when mud jacking sets observation point observation lining cutting and becomes
Change situation；
(3) existing lining cutting surface is cleared up, cuts rhegma concrete；
(4) it drills, and by insertion positioning pricker nail after design spacing injection anchoring adhesive；
(5) first pneumatically placed concrete, Concrete Thick about 3cm；
(6) tunneling boring arranges steel mesh, binds circumferential reinforcement and longitudinal reinforcement forms steel mesh, circumferential reinforcement is followed closely using lock foot pricker
It is anchored in lining side wall；
(7) production pricker follows closely fixed structure, and the bending part at backing plate both ends is arranged, so that bending part is sticked on two longitudinal reinforcements,
Pricker oncomelania cap anchors whole follow closely with pricker of pricker nail fixed structure, utilizes backing plate and backing plate anchor bar, corner welding line, pricker oncomelania cap
Positioning pricker nail is anchored on steel mesh, backing plate anchor bar is arranged in parallel with the longitudinal reinforcement, and is seamed by fillet weld
In on the backing plate, backing plate anchor bar and pad contact section two sides are all welded；
(8) construction of shotcrete, multiple pneumatically placed concrete to design thickness are carried out；
(9) when needing slip casting, spray concrete carries out secondary grouting after reaching design strength, controls grouting pressure 0.5-1.0MPa.
2. according to the method described in claim 1, it is characterized by: pricker nail fixed structure further includes being set in the middle part of backing plate
Pricker oncomelania cap, the backing plate anchor bar set on backing plate two sides, the backing plate anchor bar are arranged in parallel with the longitudinal reinforcement, and
It is set on the backing plate by corner welding line, the positioning pricker nail is fixed by pricker oncomelania cap.
3. according to the method described in claim 1, it is characterized by: being spaced a longitudinal reinforcement between the backing plate and backing plate.
4. according to the method described in claim 1, it is characterized by: positioning pricker nail insertion position includes 15 hole Φ and injection
Anchoring adhesive in hole；The positioning pricker follows closely diameter about 12mm, and length is honest and kind less than existing lining cutting, indulges circumferential direction spacing 50-60cm, institute
Positioning pricker nail is stated to squeeze into existing lining cutting 15-20cm and do not punch existing lining cutting.
5. according to the method described in claim 1, it is characterized by: the circumferential reinforcement diameter about 20mm, arranges spacing 15-
20cm；The longitudinal reinforcement diameter about 12mm arranges spacing 15-20cm.
6. according to the method described in claim 1, it is characterized by: the lock foot pricker nail be anchored in existing lining side wall bottom,
Diameter about 20mm, every root long 50-60cm；The lock foot pricker nail is connect by straight grain sleeve with circumferential reinforcement, longitudinal pitch 50cm.
7. according to the method described in claim 1, it is characterized by: the gunite concrete uses C30, thickness about 10cm.
8. according to the method described in claim 1, it is characterized by: the backing plate anchor bar diameter about 10mm, every root long 40-
50cm is welded in backing plate two sides.
9. according to the method described in claim 1, it is characterized by: the corner welding line h=5mm, backing plate anchor bar and backing plate
It all welds contact-segment two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209901.5A CN106837384B (en) | 2017-03-31 | 2017-03-31 | Rhegma Disease Treatment structure and method are removed in tunnel-liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209901.5A CN106837384B (en) | 2017-03-31 | 2017-03-31 | Rhegma Disease Treatment structure and method are removed in tunnel-liner |
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| Publication Number | Publication Date |
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| CN106837384A CN106837384A (en) | 2017-06-13 |
| CN106837384B true CN106837384B (en) | 2019-09-10 |
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| CN201710209901.5A Active CN106837384B (en) | 2017-03-31 | 2017-03-31 | Rhegma Disease Treatment structure and method are removed in tunnel-liner |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107642370A (en) * | 2017-10-25 | 2018-01-30 | 中国水利水电第十工程局有限公司 | Tunnel inverted arch repairs secondary lining ruggedized construction and construction method |
| CN108804822B (en) * | 2018-06-11 | 2022-02-18 | 中铁二院昆明勘察设计研究院有限责任公司 | Calculation method suitable for expansion rock tunnel deep and shallow burying boundary |
| CN109268019B (en) * | 2018-11-20 | 2020-08-25 | 西安建筑科技大学 | Device and method for quickly treating local diseases of high-geostress tunnel |
| CN110985071B (en) * | 2019-12-31 | 2021-02-09 | 四川交投建设工程股份有限公司 | Structure and construction method for comprehensive treatment of diseases in active highway tunnels |
| CN111155487A (en) * | 2020-01-20 | 2020-05-15 | 陕西冶金设计研究院有限公司 | Tunnel lining reinforcing method |
| CN111622778B (en) * | 2020-05-15 | 2025-01-14 | 中铁五局集团第四工程有限责任公司 | A large-span tunnel lining assembly |
| CN115110969A (en) * | 2020-08-04 | 2022-09-27 | 北京鸿锐嘉科技发展有限公司 | Reinforcing protection treatment method for tunnel lining defects |
| CN114973905B (en) * | 2022-04-21 | 2023-01-31 | 山东大学 | Using method of teaching model for simulating tunnel construction under multiple geological conditions |
| CN117128869B (en) * | 2023-09-21 | 2024-07-30 | 中国水利水电科学研究院 | System and method for monitoring crack width of reinforced concrete lining cracks in high-pressure tunnels |
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| JP2004339454A (en) * | 2003-03-18 | 2004-12-02 | Toray Ind Inc | Resin composition and molding composed of the same |
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| CN101644160A (en) * | 2009-06-05 | 2010-02-10 | 中国科学院武汉岩土力学研究所 | High ground stress soft rock stress-relief construction method |
| CN206694042U (en) * | 2017-03-31 | 2017-12-01 | 中铁二院昆明勘察设计研究院有限责任公司 | Rhegma Disease Treatment structure is peeled off in tunnel-liner |
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