CN111535832A - Construction method of high-strength shield tunnel reinforcing structure - Google Patents
Construction method of high-strength shield tunnel reinforcing structure Download PDFInfo
- Publication number
- CN111535832A CN111535832A CN202010350741.8A CN202010350741A CN111535832A CN 111535832 A CN111535832 A CN 111535832A CN 202010350741 A CN202010350741 A CN 202010350741A CN 111535832 A CN111535832 A CN 111535832A
- Authority
- CN
- China
- Prior art keywords
- shield tunnel
- hfrp
- cracks
- construction method
- concrete
- 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
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 39
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 claims abstract description 27
- 239000003822 epoxy resin Substances 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 19
- 239000002131 composite material Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 8
- 238000000576 coating method Methods 0.000 claims abstract description 8
- 102100040287 GTP cyclohydrolase 1 feedback regulatory protein Human genes 0.000 claims abstract 3
- 101710185324 GTP cyclohydrolase 1 feedback regulatory protein Proteins 0.000 claims abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000004568 cement Substances 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 16
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 230000002787 reinforcement Effects 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 abstract description 9
- 239000011347 resin Substances 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 7
- 238000009941 weaving Methods 0.000 abstract description 5
- 230000035882 stress Effects 0.000 description 4
- 229920006231 aramid fiber Polymers 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000005406 washing 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/52—Producing shaped prefabricated articles from the material specially adapted for producing articles from mixtures containing fibres, e.g. asbestos cement
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- E21D11/086—Methods of making concrete lining segments
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Ceramic Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to a construction method of a high-strength shield tunnel reinforcing structure, which comprises the following steps: s1: finding out the part to be reinforced with cracks on the inner wall of the shield tunnel; s2: coating epoxy resin on the cleaned cracks and the uneven positions on the concrete surface around the cracks; s3: fixing nuts for embedding chemical bolts on the surface of the concrete; s4: and coating epoxy resin on the surface of the concrete to form an epoxy resin layer, splicing HFRP grid-ECC composite reinforcing plates on the surface of the coated epoxy resin layer piece by piece, and forming the HFRP grid-ECC composite reinforcing layer on the surface of the inner wall of the shield tunnel. Compared with the prior art, the invention combines the performance advantages of the CFPR fiber and the GFRP fiber, fully combines the advantages of the CFPR fiber such as high strength, light weight and corrosion resistance with the high ductility of the GFRP fiber, and obtains the integral HFRP mesh cloth in a warp-weft weaving mode, so that the mechanical property of the HFRP mesh cloth is obviously stronger than that of an aramid-resin material after the HFRP mesh cloth is applied to the internal structure of the shield tunnel.
Description
Technical Field
The invention relates to the technical field of structural reinforcement in the field of tunnel engineering, in particular to a construction method of a high-strength shield tunnel reinforcement structure.
Background
Urban rail transit has developed rapidly in recent years due to the ever-increasing pressure of urban traffic. The shield tunnel has the advantages of high construction speed, reasonable structural stress form, increasingly mature construction technology and the like, and is widely applied to subway tunnel construction.
The fabricated lining is formed by conveying a plurality of prefabricated components in a factory or on site into a tunnel and mechanically splicing, and once fabricated, the fabricated lining can bear the pressure of surrounding rocks. In the process of long-term use, the deformation of the lining exceeds the limit due to reasons of ground overload, bolt corrosion, structural aging and the like, thus not only aggravating the ground subsidence but also influencing the normal use of the tunnel.
CN207598252U provides a shield tunnel reinforced structure, including the shield tunnel, back up coat and anchor, the shield tunnel is provided with the section of jurisdiction, the section of jurisdiction includes a plurality of defective position, the defective position packing has the packing thick liquid, the inner wall of section of jurisdiction is located in the back up coat subsides, the anchor passes the back up coat and is connected with the section of jurisdiction, the back up coat includes the primer layer, first impregnated resin layer, aramid fiber layer and second impregnated resin layer, the inner wall of section of jurisdiction is located in the primer layer subsides, and the primer layer, first impregnated resin layer, aramid fiber layer and second impregnated resin layer are range upon range of in proper order. Although the structure has better toughness, the structure only contains resin and aramid fiber, so that the strength performance is insufficient, and the reinforced structure after construction has the risk of strength failure.
Therefore, a reinforcing layer structure for a shield tunnel, which has a wide application range, quick installation and good reinforcing effect, needs to be designed urgently.
Disclosure of Invention
The invention aims to solve the problems, and provides a construction method of a high-strength shield tunnel reinforcing structure, which combines the performance advantages of CFPR fibers and GFRP fibers, and fully combines the advantages of CFPR, such as high strength, light weight and corrosion resistance, with the high ductility of the GFRP fibers, so that the mechanical property of the high-strength shield tunnel reinforcing structure is remarkably stronger than that of an aramid fiber-resin material after the high-strength shield tunnel reinforcing structure is applied to an internal structure of a shield tunnel.
The purpose of the invention is realized by the following technical scheme:
the construction method of the high-strength shield tunnel reinforcing structure comprises the following steps:
s1: finding out a part to be reinforced with cracks on the inner wall of the shield tunnel, cleaning the cracks, and cleaning the concrete surface around the cracks;
s2: coating epoxy resin on the cleaned cracks and the uneven parts on the concrete surface around the cracks so as to level the cracks and the concrete surface around the cracks;
s3: fixing nuts for embedding chemical bolts on the surface of the concrete;
s4: coating epoxy resin on the surface of concrete to form an epoxy resin layer, splicing HFRP grid-ECC composite reinforcing plates on the surface of the coated epoxy resin layer piece by piece to form an HFRP grid-ECC composite reinforcing layer on the surface of the inner wall of the shield tunnel, fastening and matching a screw of a chemical bolt with a nut of the chemical bolt, and fixing the HFRP grid-ECC composite reinforcing layer.
Furthermore, the HFRP grid-ECC composite reinforcing plate is formed by doping and mixing HFRP grid cloth in a cement matrix structure.
Furthermore, the HFRP mesh cloth is arranged at the position of the middle layer of the cement matrix structure in the process of pouring the cement matrix.
Furthermore, the HFRP grid-ECC composite reinforcing plate is an arc-shaped plate matched with the inner wall of the shield tunnel.
Furthermore, the HFRP mesh cloth is formed by weaving CFPR (carbon fiber reinforced) fibers and GFRP (glass fiber reinforced) fibers in a mixed mode.
Further, in step S1, the scraper is used to scrape away mortar and dust adhering to the surface of the concrete along the crack direction, to define the crack direction and length, and then to cut V-shaped grooves along the crack, and the V-shaped grooves are cleaned by high pressure air and then washed by clean water.
Further, in step S1, if there is a water seepage crack, a plugging agent is poured into the crack until the crack does not seep water. For no water seepage crack, this step is skipped.
Further, the plugging agent is a water-based polyurethane plugging agent.
Further, in step S3, a nut groove is opened on the concrete surface, and a nut of a chemical bolt is fitted into the nut groove and fixed by epoxy resin. Ordinary section of jurisdiction reinforced structure among the prior art generally chooses for use expansion bolts, and this patent has chooseed chemical bolt (bolt construction and epoxy's cooperation structure) for use, because chemical bolt leans on chemical bonding atress, and the anchor power is strong, and the shape is with pre-buried, no expansion stress, requires lowly to the substrate, and long-term load is stable in humid environment, and its superiority is that ordinary expansion bolts can't be compared.
Further, the cement matrix structure is composed of traditional concrete components except coarse aggregates, wherein the selected matrix is mixed with water in a mass ratio of: cement: sand: fine aggregate 0.38: 1: 1.1: 2.7, wherein the particle size of the fine aggregate is 1 mm-2 mm.
Compared with the prior art, the technical scheme has the following advantages:
1) the technical scheme combines the performance advantages of the CFPR fiber and the GFRP fiber, fully combines the advantages of the CFPR such as high strength, light weight and corrosion resistance with the high ductility of the GFRP fiber, and obtains the integral HFRP mesh cloth in a warp-weft weaving mode, so that the mechanical property of the HFRP mesh cloth is obviously better than that of an aramid-resin material after the HFRP mesh cloth is applied to the inner structure of the shield tunnel.
2) In the technology, the selection of the material, the structure fixing mode and the assembling type of the ECC reinforcing component are considered from the geometric structure, the surrounding environment and the stress deformation characteristic of the shield tunnel structure, and if the ECC reinforcing component is selected, the ECC reinforcing component has the characteristics of light and thin material and strong corrosion resistance, so that the clearance and the limitation of the shield tunnel are not influenced, and the influence of the corrosion of the stray current of the subway is also prevented.
3) In the technical scheme, the fiber woven net is positioned in the middle of the cement matrix, so that the deformation of a seam of the shield tunnel in the service period is considered, and the fiber woven net is prevented from being damaged.
4) The fixing mode of the component adopts epoxy resin AB structural adhesive and chemical bolt fixing, not only considers the difference between the segment interface roughness and other structures, but also improves the stability of the reinforcing bolt in the wet environment inside the subway; the reinforcing body is only arranged in the middle of the inner wall of the tunnel, so that the positions of bolt hand holes are avoided, the material loss is reduced, and meanwhile, the splicing interfaces avoid all longitudinal seam positions, so that the anti-shearing effect is achieved to a certain extent, and the deformation of the seams can be effectively suppressed.
5) When the fabricated lining has micro cracks or is greatly deformed, the fabricated lining can be reinforced effectively in a simple and efficient construction mode, so that the durability of the lining structure is improved, the replacement is easy, and the aim of secondary damage to the lining structure is fulfilled.
Detailed Description
The present invention is described in detail below with reference to specific examples, but the present invention is not limited thereto in any way.
Example 1
The construction method of the high-strength shield tunnel reinforcing structure comprises the following steps:
s1: finding out a part to be reinforced with a crack on the inner wall of the shield tunnel, cleaning the crack, cleaning the concrete surface around the crack, shoveling away mortar and dust attached to the concrete surface along the crack direction by adopting a scraper, drawing out the trend and the length of the crack, then cutting a V-shaped groove along the crack, blowing the V-shaped groove clean by high-pressure air, and then washing by using clear water; if water seepage cracks exist, the plugging agent is poured into the cracks until the cracks do not seep water any more. For no water seepage crack, this step is skipped. In specific implementation, the plugging agent is a water-based polyurethane plugging agent.
S2: and (4) coating epoxy resin on the cleaned cracks and the uneven parts on the concrete surface around the cracks so as to level the cracks and the concrete surface around the cracks.
S3: and (3) fixing nuts embedded with chemical bolts on the surface of the concrete, forming nut grooves on the surface of the concrete, loading the nuts of the chemical bolts into the nut grooves, and gluing and fixing the nuts through epoxy resin. Ordinary section of jurisdiction reinforced structure among the prior art generally chooses for use expansion bolts, and this patent has chooseed chemical bolt (bolt construction and epoxy's cooperation structure) for use, because chemical bolt leans on chemical bonding atress, and the anchor power is strong, and the shape is with pre-buried, no expansion stress, requires lowly to the substrate, and long-term load is stable in humid environment, and its superiority is that ordinary expansion bolts can't be compared.
S4: coating epoxy resin on the surface of concrete to form an epoxy resin layer, splicing the HFRP grid-ECC composite reinforcing plates on the surface of the coated epoxy resin layer piece by piece, finishing axial splicing by 3-6 reinforcing plates during specific implementation, and enabling the length direction of the HFRP grid-ECC composite reinforcing plates to be vertical to the length direction of cracks, so that the HFRP grid-ECC composite reinforcing layer is formed on the inner wall surface of the shield tunnel, and fastening and matching a screw rod of a chemical bolt with a nut of the chemical bolt to fix the HFRP grid-ECC composite reinforcing layer.
The HFRP mesh-ECC composite reinforcing plate used in this embodiment is formed by doping and mixing HFRP mesh cloth in a cement matrix structure. The HFRP gridding cloth is arranged at the middle layer position of the cement matrix structure in the process of pouring the cement matrix. The HFRP grid-ECC composite reinforcing plate is an arc-shaped plate matched with the inner wall of the shield tunnel. The multi-arc-shaped plates are connected end to end, specifically, epoxy resin adopted is a thermosetting adhesive, and an air heater can be used for drying after splicing and attaching are completed. In this embodiment, the cement matrix structure is composed of the conventional concrete components except coarse aggregate, wherein the selected matrix is mixed with water in a mass ratio of: cement: sand: fine aggregate 0.38: 1: 1.1: 2.7, wherein the particle size of the fine aggregate is 1 mm-2 mm. The HFRP mesh fabric is formed by weaving CFPR (carbon fiber reinforced) fibers and GFRP (glass fiber reinforced) fibers in a mixed mode. In the technical scheme, the performance advantages of the CFPR fiber and the GFRP fiber are combined, the advantages of high strength, light weight, corrosion resistance and the like of the CFPR are fully combined with the high ductility of the GFRP fiber, and the integral HFRP mesh cloth is obtained in a warp-weft weaving mode, so that the mechanical property of the HFRP mesh cloth is remarkably stronger than that of an aramid-resin material after the HFRP mesh cloth is applied to an internal structure of a shield tunnel.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. A construction method of a high-strength shield tunnel reinforcing structure is characterized by comprising the following steps:
s1: finding out a part to be reinforced with cracks on the inner wall of the shield tunnel, cleaning the cracks, and cleaning the concrete surface around the cracks;
s2: coating epoxy resin on the cleaned cracks and the uneven parts on the concrete surface around the cracks so as to level the cracks and the concrete surface around the cracks;
s3: fixing nuts for embedding chemical bolts on the surface of the concrete;
s4: coating epoxy resin on the surface of concrete to form an epoxy resin layer, splicing HFRP grid-ECC composite reinforcing plates on the surface of the coated epoxy resin layer piece by piece, forming an HFRP grid-ECC composite reinforcing layer on the surface of the inner wall of the shield tunnel, fastening and matching a screw of a chemical bolt with a nut of the chemical bolt, and fixing the HFRP grid-ECC composite reinforcing layer.
2. The construction method of a high strength shield tunnel reinforcement structure according to claim 1, wherein the HFRP mesh-ECC composite reinforcement plate is formed by doping and mixing HFRP mesh cloth in a cement matrix structure.
3. The construction method of the high-strength shield tunnel reinforcing structure according to claim 2, wherein the HFRP mesh cloth is arranged at the middle layer position of the cement matrix structure in the cement matrix pouring process.
4. The construction method of a high strength shield tunnel reinforcement structure according to claim 2, wherein the HFRP grid-ECC composite reinforcement plate is an arc-shaped plate matched with the inner wall of the shield tunnel.
5. The construction method of a high strength shield tunnel reinforcement structure according to claim 2, wherein the HFRP mesh fabric is a mesh fabric woven by mixing CFPR fiber and GFRP fiber.
6. The method of constructing a high strength shield tunnel reinforcing structure according to claim 1, wherein in the step S1, mortar and dust attached to the surface of the concrete are scooped up along the direction of the crack using a scraper, the crack is drawn and the length of the crack is extended, and then V-shaped grooves are cut along the crack, and the V-shaped grooves are first blown clean with high pressure air and then washed with clean water.
7. The construction method of a high-strength shield tunnel reinforcing structure according to claim 1, wherein in the step S1, if there is a water seepage crack, a plugging agent is poured into the crack until the crack no longer seeps water.
8. The construction method of the high-strength shield tunnel reinforcing structure according to claim 7, wherein the plugging agent is a water-based polyurethane plugging agent.
9. The construction method of a high strength shield tunnel reinforcing structure according to claim 1, wherein in the step of S3, a nut groove is opened on the concrete surface, and a nut of a chemical bolt is inserted into the nut groove and fixed by epoxy resin.
10. The construction method of the high-strength shield tunnel reinforcing structure according to claim 2, wherein the cement matrix structure is composed of traditional concrete components except coarse aggregate, and the selected matrix matching mass ratio is water: cement: sand: fine aggregate 0.38: 1: 1.1: 2.7, wherein the particle size of the fine aggregate is 1 mm-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010350741.8A CN111535832A (en) | 2020-04-28 | 2020-04-28 | Construction method of high-strength shield tunnel reinforcing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010350741.8A CN111535832A (en) | 2020-04-28 | 2020-04-28 | Construction method of high-strength shield tunnel reinforcing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111535832A true CN111535832A (en) | 2020-08-14 |
Family
ID=71973245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010350741.8A Pending CN111535832A (en) | 2020-04-28 | 2020-04-28 | Construction method of high-strength shield tunnel reinforcing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111535832A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203978444U (en) * | 2014-05-22 | 2014-12-03 | 南京地铁集团有限公司 | Tunnel lining ruggedized construction |
| KR20160064279A (en) * | 2014-11-27 | 2016-06-08 | (주)케이씨엠티 | Open rock bolt construction method |
| CN105822330A (en) * | 2016-06-01 | 2016-08-03 | 山东深博巷道支护技术有限公司 | GFRP tube concrete support for underground engineering supporting and construction technology thereof |
| CN205777101U (en) * | 2016-07-05 | 2016-12-07 | 湖南大学 | A kind of ocean engineering coupled column |
| CN207598249U (en) * | 2017-10-16 | 2018-07-10 | 广州地铁设计研究院有限公司 | A kind of aramid fiber ruggedized construction |
| CN207598252U (en) * | 2017-10-16 | 2018-07-10 | 广州地铁设计研究院有限公司 | A kind of shield tunnel ruggedized construction |
| CN108316942A (en) * | 2018-01-11 | 2018-07-24 | 中交路桥建设有限公司 | A kind of tunnel double-lining microcrack reinforcement |
| CN208489542U (en) * | 2018-05-31 | 2019-02-12 | 国网山西电力勘测设计研究院有限公司 | The electric cabinet of energy self-sealing cable via hole |
| CN110107316A (en) * | 2019-05-24 | 2019-08-09 | 南京地铁集团有限公司 | A kind of ECC composite fibre establishment net ruggedized construction |
| CN209818076U (en) * | 2019-03-22 | 2019-12-20 | 南京地铁集团有限公司 | Shield tunnel reinforced layer structure |
| CN110630028A (en) * | 2019-09-09 | 2019-12-31 | 水利部交通运输部国家能源局南京水利科学研究院 | Device for reinforcing hoop prestress by filling curing material in high-pressure elastic pipe |
-
2020
- 2020-04-28 CN CN202010350741.8A patent/CN111535832A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203978444U (en) * | 2014-05-22 | 2014-12-03 | 南京地铁集团有限公司 | Tunnel lining ruggedized construction |
| KR20160064279A (en) * | 2014-11-27 | 2016-06-08 | (주)케이씨엠티 | Open rock bolt construction method |
| CN105822330A (en) * | 2016-06-01 | 2016-08-03 | 山东深博巷道支护技术有限公司 | GFRP tube concrete support for underground engineering supporting and construction technology thereof |
| CN205777101U (en) * | 2016-07-05 | 2016-12-07 | 湖南大学 | A kind of ocean engineering coupled column |
| CN207598249U (en) * | 2017-10-16 | 2018-07-10 | 广州地铁设计研究院有限公司 | A kind of aramid fiber ruggedized construction |
| CN207598252U (en) * | 2017-10-16 | 2018-07-10 | 广州地铁设计研究院有限公司 | A kind of shield tunnel ruggedized construction |
| CN108316942A (en) * | 2018-01-11 | 2018-07-24 | 中交路桥建设有限公司 | A kind of tunnel double-lining microcrack reinforcement |
| CN208489542U (en) * | 2018-05-31 | 2019-02-12 | 国网山西电力勘测设计研究院有限公司 | The electric cabinet of energy self-sealing cable via hole |
| CN209818076U (en) * | 2019-03-22 | 2019-12-20 | 南京地铁集团有限公司 | Shield tunnel reinforced layer structure |
| CN110107316A (en) * | 2019-05-24 | 2019-08-09 | 南京地铁集团有限公司 | A kind of ECC composite fibre establishment net ruggedized construction |
| CN110630028A (en) * | 2019-09-09 | 2019-12-31 | 水利部交通运输部国家能源局南京水利科学研究院 | Device for reinforcing hoop prestress by filling curing material in high-pressure elastic pipe |
Non-Patent Citations (2)
| Title |
|---|
| 杨洋等: "CFRP/GFRP混杂加固混凝土梁胶层界面应力有限元分析", 《混凝土》 * |
| 赵勤等: "《城市轨道交通通信信号系统工程安装技术手册》", 31 May 2013, 中国铁道出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104675141B (en) | A kind of FRP pipe constraint cement-base composite material reinforces pillarwork | |
| KR101612800B1 (en) | Structural repair and Reinforcing method for concrete structures such as tunnel, bridge common duct and building by using fiber mesh and fiber reinforced cementitious matrix | |
| CA2987834C (en) | Prefabricated bamboo composite pipe gallery | |
| US11773610B2 (en) | Concrete structure strengthened using grid reinforcement material and non-shrink grout and method of strengthening the same | |
| CN105064399B (en) | A kind of prefabricated bamboo is combined piping lane | |
| KR101143906B1 (en) | High-tensile sheet metal panels construction method for concrete structure reinforcement and repair | |
| KR101104613B1 (en) | Reinforcing method of concrete structures using fiber composites for reinforcing | |
| CN111535832A (en) | Construction method of high-strength shield tunnel reinforcing structure | |
| CN111608093B (en) | Shear-resistant reinforcing method for hollow plate beam based on high-performance composite material | |
| KR100794554B1 (en) | Member for reinforcing adhesive-power, repairing section of concrete structure, and method for repairing section of it using the same | |
| CN109555270A (en) | A kind of casing-FRP composite reinforcing material and preparation method thereof | |
| CN108222538A (en) | It is a kind of based on modified phosphate cementitious material be bonding matrix structural strengthening method | |
| CN116657513A (en) | Double arch bridge crack reinforcing structure and reinforcing method | |
| CN209818076U (en) | Shield tunnel reinforced layer structure | |
| CN114352058B (en) | Reinforcing construction method for building structure reinforcing cement rope | |
| CN105839938A (en) | Building strengthening structure and building strengthening method | |
| KR101816747B1 (en) | Underground Concrete Structure Reinforced With Ultra High Strength Concrete And Sheet Water Proofing And Constructing Methed therof | |
| JP3399918B2 (en) | Reinforcement structure of concrete structure with curved surface | |
| Hameed et al. | Precast epoxy fasten SIFCON layers as a retorting material for defected concrete | |
| JP4574778B2 (en) | Method for repairing concrete structure and surface coating formwork | |
| KR102548490B1 (en) | Under-water concrete structure for reinforcing using textile-reinforced mortar (trm) precast panel using nozzle injection rod, and repair method for the same | |
| CN110107316A (en) | A kind of ECC composite fibre establishment net ruggedized construction | |
| CN212428173U (en) | Energy-saving and environment-friendly water leakage repairing system for pipe shaft and ventilating shaft | |
| KR100434820B1 (en) | Rigid reinforcement of structures combined with reinforced resin fibers | |
| CN113235462B (en) | Method and device for reinforcing stone arch bridge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20200814 |
|
| RJ01 | Rejection of invention patent application after publication |