CN107035385A - A kind of reinforcement means of duct pieces of shield tunnel - Google Patents
A kind of reinforcement means of duct pieces of shield tunnel Download PDFInfo
- Publication number
- CN107035385A CN107035385A CN201710465273.7A CN201710465273A CN107035385A CN 107035385 A CN107035385 A CN 107035385A CN 201710465273 A CN201710465273 A CN 201710465273A CN 107035385 A CN107035385 A CN 107035385A
- Authority
- CN
- China
- Prior art keywords
- shield tunnel
- reinforcement
- duct pieces
- bar
- reinforcement means
- 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.)
- Pending
Links
- 230000002787 reinforcement Effects 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 239000004567 concrete Substances 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 6
- 239000011378 shotcrete Substances 0.000 claims abstract description 3
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 230000001771 impaired effect Effects 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 8
- 238000013467 fragmentation Methods 0.000 abstract description 2
- 238000006062 fragmentation reaction Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000004520 agglutination Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004826 seaming Methods 0.000 description 1
- 230000000192 social effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- E21D11/08—Lining with building materials with preformed concrete slabs
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (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 construction method, more particularly to a kind of reinforcement means of duct pieces of shield tunnel, this method comprises the following steps：A. poor dabbing processing is carved；B. steel planting；C. bar-mat reinforcement is applied；D. clear up；E. humidify；F. gunite concrete.The method construction is fast, cost is low, can guarantee that reinforcing body and section of jurisdiction compatible deformation, and performance is stable, shield tunnel can be solved in progradation and during operation due to closing on the problem of being reinforced after construction occurrence of large-area fragmentation, it is ensured that tunnel meets operation security requirement.
Description
Technical field
The present invention relates to a kind of construction method, more particularly to a kind of reinforcement means of duct pieces of shield tunnel.
Background technology
Repairing and reinforcing is carried out to damaged tunnel segment structure in tunnel internal at present, for different segment damage situations, generally adopted
Use two methods：First method is that the fibre sheet materials such as soft texture, the aramid fabric for being only capable of bearing pulling force are pasted on into impaired shield
In the tensile zone of structure tunnel duct piece, the tensile property at section of jurisdiction and seaming position is improved whereby, but this method can not be significantly
Degree improves the rigidity of structure, and consolidation effect is influenceed by tunnel deformation degree, i.e., tunnel deformation is smaller, and consolidation effect is just better.
Second method is then to be reinforced to being damaged duct pieces of shield tunnel using the method for interior steel plate, with the entirety of riser loop
Load-carrying properties, though the rigidity of structure can be increased substantially, but face conduct oneself with dignity excessive, construction complexity, the problems such as reinforcement cost is high
The content of the invention
It is an object of the invention to provide a kind of reinforcement means of duct pieces of shield tunnel, solve tunnel reinforcement it is complicated, into
The problem of this is high.
The present invention is achieved in that a kind of reinforcement means of duct pieces of shield tunnel, and reinforcing scope is impaired section of jurisdiction inwall
All-round scope, this method comprises the following steps：
A. poor dabbing processing is carved；
B. steel planting；
C. bar-mat reinforcement is applied；
D. clear up；
E. humidify；
F. gunite concrete.
The present invention further technical scheme be：The step A is：The section of jurisdiction inwall that section is reinforced to shield tunnel is carried out
The processing of cutting dabbing, cuts concrete cover to tunnel segment structure affected area, duct pieces of shield tunnel is exposed steel bar stress.
The present invention further technical scheme be：The step B is：Section of jurisdiction cage bar is avoided, is axially bored along section of jurisdiction with ring
Hole, and anchoring adhesive is injected into hole, replant into spacer bar, spacer bar end marks for thickness.
The present invention further technical scheme be：The step C is：The good bar-mat reinforcement of colligation is consolidated by way of welding
It is scheduled on steel bar stress and spacer bar, bar-mat reinforcement includes axial reinforcement and circumferential reinforcement.
The present invention further technical scheme be：The step D is：Scum silica frost is cleared up, holding structure clean surface is dustless.
The present invention further technical scheme be：The step is：Rinse section of jurisdiction surface repeatedly with water, make it fully wet
Profit, then wipes the ponding for remaining in surface off.
The present invention further technical scheme be：The step F is：Concrete is ultra-high performance concrete (UHPC)；Spray
Ultra-high performance concrete (UHPC) is penetrated to not having spacer bar just.
The beneficial effects of the invention are as follows：Method construction is fast, and cost is low, it is ensured that UHPC back-up coats and section of jurisdiction compatible deformation, property
Can be stable, shield tunnel can be solved in progradation and during operation due to being carried out after closing on construction occurrence of large-area fragmentation
The problem of reinforcing, it is ensured that tunnel meets operation security requirement.
Brief description of the drawings
Fig. 1 is a kind of reinforcement means scope schematic diagram for duct pieces of shield tunnel that the present invention is provided；
Fig. 2 is a kind of reinforcement means schematic diagram for duct pieces of shield tunnel that the present invention is provided.
Reference：1st, section of jurisdiction 2, ultra-high performance concrete 3, steel bar stress 4, bar-mat reinforcement 41, axial reinforcement, 42,
Circumferential reinforcement 5, positioning bar.
Embodiment
Embodiment one：
Fig. 1-Fig. 2 shows a kind of reinforcement means of duct pieces of shield tunnel, reinforces the section of jurisdiction 1 of section to shield tunnel first
Inwall carries out cutting dabbing processing, and key area is damaged to tunnel segment structure and is generally and binds block and joint cuts concrete protective
Layer, makes duct pieces of shield tunnel expose steel bar stress 3；Section of jurisdiction cage bar is avoided, drilling is axially and radially distributed along section of jurisdiction 1, and to hole
Middle injection anchoring adhesive, is replanted into spacer bar 5, and the end of spacer bar 5 is the thickness mark for spraying very-high performance native (UHPC),
Thickness 50-100mm；The good bar-mat reinforcement 4 of colligation is fixed on by way of welding on steel bar stress 3 and spacer bar 5 again, steel
Muscle net 4 includes axial reinforcement 41 and circumferential reinforcement 42；Scum silica frost is cleared up, holding structure clean surface is dustless；With water flush pipe repeatedly
The surface of piece 1, is sufficiently humidified so as to it, then wipes the ponding for remaining in surface off, reaches saturated dry surface；Very-high performance is sprayed to mix
Solidifying soil (UHPC) to there be not spacer bar just.The present invention is compared with the advantage of prior art：
(1) in terms of structure stress, the strength and stiffness of section of jurisdiction can not only be improved, segment deformation is controlled and further breaks
It is bad, and good toughness can be kept with section of jurisdiction compatible deformation；
(2) from the aspect of structure durability, ultra-high performance concrete (UHPC) belongs to inorganic material, solves and is pasting steel
The problem of aging of the interface agglutination agent used when plate is reinforced and aramid fabric is reinforced, it is ensured that the durability of interface cementing strength；
(3) from structure secure context, compared to affixing steel plate reinforcement section of jurisdiction method, reinforcing body is strong operation stage in later stage
Health state is more prone to observe and controlled；
(4) in terms of construction and economic benefit, the our whole work progress technique of law system is simple, time-consuming short, right
Metro operation influence is small, with very high social effect and economic benefits.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (7)
1. a kind of reinforcement means of duct pieces of shield tunnel, reinforcing scope is the all-round scope of impaired section of jurisdiction inwall, it is characterised in that
This method comprises the following steps：
A. poor dabbing processing is carved；
B. steel planting；
C. bar-mat reinforcement is applied；
D. clear up；
E. humidify；
F. gunite concrete.
2. a kind of reinforcement means of duct pieces of shield tunnel according to claim 1, it is characterised in that the step A is：It is right
Section of jurisdiction (1) inwall that shield tunnel reinforces section carries out cutting dabbing processing, and concrete guarantor is cut to tunnel segment structure affected area
Sheath, makes duct pieces of shield tunnel expose steel bar stress (3).
3. a kind of reinforcement means of duct pieces of shield tunnel according to claim 2, it is characterised in that the step B is：Keep away
Open pipe piece cage bar, axially drills along section of jurisdiction (1) with ring, and injects anchoring adhesive into hole, replants into spacer bar (5), described
Spacer bar (5) end marks for thickness.
4. a kind of reinforcement means of duct pieces of shield tunnel according to claim 3, it is characterised in that the step C is：Will
The good bar-mat reinforcement of colligation (4) is fixed on by way of welding on steel bar stress (3) and spacer bar (5), the bar-mat reinforcement (4)
Including axial reinforcement (41) and circumferential reinforcement (42).
5. a kind of reinforcement means of duct pieces of shield tunnel according to claim 4, it is characterised in that the step D is：Clearly
Scum silica frost is managed, holding structure clean surface is dustless.
6. a kind of reinforcement means of duct pieces of shield tunnel according to claim 5, it is characterised in that the step E is：With
Water rinses section of jurisdiction (1) surface repeatedly, is sufficiently humidified so as to it, then wipes the ponding for remaining in surface off.
7. the reinforcement means of a kind of duct pieces of shield tunnel according to claim 6, it is characterised in that in the step F：Institute
Concrete is stated for ultra-high performance concrete；Injection ultra-high performance concrete was not to having spacer bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465273.7A CN107035385A (en) | 2017-06-19 | 2017-06-19 | A kind of reinforcement means of duct pieces of shield tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710465273.7A CN107035385A (en) | 2017-06-19 | 2017-06-19 | A kind of reinforcement means of duct pieces of shield tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107035385A true CN107035385A (en) | 2017-08-11 |
Family
ID=59541359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710465273.7A Pending CN107035385A (en) | 2017-06-19 | 2017-06-19 | A kind of reinforcement means of duct pieces of shield tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107035385A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296383A (en) * | 2018-10-09 | 2019-02-01 | 中建隧道建设有限公司 | Reinforcement means is maintained after dehydration outside a kind of tunnel duct piece |
| 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 |
| CN111648787A (en) * | 2020-04-24 | 2020-09-11 | 同济大学 | Method for reinforcing shield tunnel lining structure by adopting ultra-high performance concrete |
| CN112813792A (en) * | 2021-02-22 | 2021-05-18 | 重庆交通大学 | Method for reinforcing arch bridge by combination of UHPC injection and bar planting |
| CN113503172A (en) * | 2021-05-31 | 2021-10-15 | 中铁工程服务有限公司 | Punching method and device for shield subway tunnel segment and storage medium |
| CN113642089A (en) * | 2021-10-14 | 2021-11-12 | 湖南大学 | Method for determining deformation and reinforcement range of surrounding stratum in shield tunneling |
| CN114150877A (en) * | 2021-12-08 | 2022-03-08 | 湖南人健宝固高新科技发展有限公司 | Construction method of ultra-high performance concrete |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56163327A (en) * | 1980-05-21 | 1981-12-15 | Nippon Rotsukuraapipe Kk | Repairing method for embedded concrete pipe |
| CN102979536A (en) * | 2012-12-11 | 2013-03-20 | 上海市基础工程有限公司 | Construction method for tunnel segment repair and reinforcement |
| CN103061780A (en) * | 2012-12-25 | 2013-04-24 | 上海隧道工程股份有限公司 | Operating tunnel structure reinforcement construction method through steel ring |
| CN103643965A (en) * | 2013-12-16 | 2014-03-19 | 上海市基础工程集团有限公司 | Repair and reinforcement construction methods for segments in formed tunnel |
| CN104652294A (en) * | 2015-02-03 | 2015-05-27 | 湖南大学 | New technology for reinforcing box girder through adhesion of UHPC (Ultra High Performance Concrete) and steel plate |
| CN104790970A (en) * | 2015-03-31 | 2015-07-22 | 同济大学 | Method for utilizing combined structure to conduct shield tunnel strengthening |
| CN105178980A (en) * | 2015-09-07 | 2015-12-23 | 中南大学 | Skylight-forming lining structure repair method for tunnels |
| CN205714212U (en) * | 2016-06-15 | 2016-11-23 | 中国电建集团铁路建设有限公司 | Tunneling shield segment damage falls block leakage muscle and repairs structure |
-
2017
- 2017-06-19 CN CN201710465273.7A patent/CN107035385A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56163327A (en) * | 1980-05-21 | 1981-12-15 | Nippon Rotsukuraapipe Kk | Repairing method for embedded concrete pipe |
| CN102979536A (en) * | 2012-12-11 | 2013-03-20 | 上海市基础工程有限公司 | Construction method for tunnel segment repair and reinforcement |
| CN103061780A (en) * | 2012-12-25 | 2013-04-24 | 上海隧道工程股份有限公司 | Operating tunnel structure reinforcement construction method through steel ring |
| CN103643965A (en) * | 2013-12-16 | 2014-03-19 | 上海市基础工程集团有限公司 | Repair and reinforcement construction methods for segments in formed tunnel |
| CN104652294A (en) * | 2015-02-03 | 2015-05-27 | 湖南大学 | New technology for reinforcing box girder through adhesion of UHPC (Ultra High Performance Concrete) and steel plate |
| CN104790970A (en) * | 2015-03-31 | 2015-07-22 | 同济大学 | Method for utilizing combined structure to conduct shield tunnel strengthening |
| CN105178980A (en) * | 2015-09-07 | 2015-12-23 | 中南大学 | Skylight-forming lining structure repair method for tunnels |
| CN205714212U (en) * | 2016-06-15 | 2016-11-23 | 中国电建集团铁路建设有限公司 | Tunneling shield segment damage falls block leakage muscle and repairs structure |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296383A (en) * | 2018-10-09 | 2019-02-01 | 中建隧道建设有限公司 | Reinforcement means is maintained after dehydration outside a kind of tunnel duct piece |
| 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 |
| CN111648787A (en) * | 2020-04-24 | 2020-09-11 | 同济大学 | Method for reinforcing shield tunnel lining structure by adopting ultra-high performance concrete |
| CN112813792A (en) * | 2021-02-22 | 2021-05-18 | 重庆交通大学 | Method for reinforcing arch bridge by combination of UHPC injection and bar planting |
| CN113503172A (en) * | 2021-05-31 | 2021-10-15 | 中铁工程服务有限公司 | Punching method and device for shield subway tunnel segment and storage medium |
| CN113503172B (en) * | 2021-05-31 | 2023-11-03 | 中铁工程服务有限公司 | Punching method and device for shield subway tunnel segment and storage medium |
| CN113642089A (en) * | 2021-10-14 | 2021-11-12 | 湖南大学 | Method for determining deformation and reinforcement range of surrounding stratum in shield tunneling |
| CN114150877A (en) * | 2021-12-08 | 2022-03-08 | 湖南人健宝固高新科技发展有限公司 | Construction method of ultra-high performance concrete |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170811 |
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| RJ01 | Rejection of invention patent application after publication |