CN119145888A - Tunnel waterproof construction method - Google Patents
Tunnel waterproof construction method Download PDFInfo
- Publication number
- CN119145888A CN119145888A CN202411448599.5A CN202411448599A CN119145888A CN 119145888 A CN119145888 A CN 119145888A CN 202411448599 A CN202411448599 A CN 202411448599A CN 119145888 A CN119145888 A CN 119145888A
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- CN
- China
- Prior art keywords
- waterproof
- layer
- znjc
- cleaning
- construction method
- 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
- 238000010276 construction Methods 0.000 title claims abstract description 20
- 229920000642 polymer Polymers 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000004593 Epoxy Substances 0.000 claims abstract description 14
- 239000003292 glue Substances 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 9
- 229920005830 Polyurethane Foam Polymers 0.000 claims abstract description 6
- 239000011496 polyurethane foam Substances 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000004140 cleaning Methods 0.000 claims description 24
- 239000010426 asphalt Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 7
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000006004 Quartz sand Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 238000007634 remodeling Methods 0.000 claims description 5
- 238000005034 decoration Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims 9
- 238000005336 cracking Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 36
- 239000003973 paint Substances 0.000 description 8
- 238000005498 polishing Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 230000037452 priming Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 239000012945 sealing adhesive Substances 0.000 description 3
- 238000003892 spreading Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001688 coating polymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000002791 soaking 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
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- 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)
- Road Paving Structures (AREA)
Abstract
本发明涉及隧道防水施工相关技术领域，尤其涉及一种隧道防水施工方法，通过涂刷ZN‑103环氧底漆，展开面积(0.5kg/㎡)，顺带外面表层的20～30cm部位，使用ZNJC聚氨酯发泡胶进行底层封堵，使用ZNJC高分子弹性聚合胶进行防水封堵，铺贴ZNJC高耐久防水密封胶带5～8cm宽，厚度2mm，打磨平整，滚涂ZN‑202水性环氧底漆，滚涂高分子防水中涂，厚度1mm，滚涂高分子防水面漆，对裂缝周围重塑防水层，形成更牢固的隔水层；防水层选用的高弹高强材料，有很好的弹性抗裂效果，对抗路面振动带来的开裂风险。
The invention relates to the technical field related to tunnel waterproof construction, and in particular to a tunnel waterproof construction method, which comprises the following steps: applying ZN-103 epoxy primer to expand the area (0.5kg/㎡), using ZNJC polyurethane foam glue to seal the bottom layer on the 20-30cm part of the outer surface, using ZNJC high molecular elastic polymer glue to perform waterproof sealing, laying ZNJC high-durability waterproof sealing tape with a width of 5-8cm and a thickness of 2mm, grinding and flattening, rolling ZN-202 water-based epoxy primer, rolling high molecular waterproof middle coating with a thickness of 1mm, and rolling high molecular waterproof topcoat to reshape the waterproof layer around the crack to form a more solid waterproof layer; the waterproof layer is made of high-elasticity and high-strength materials with good elastic anti-cracking effect to resist the cracking risk caused by road vibration.
Description
Technical Field
The invention relates to the technical field related to tunnel waterproof construction, in particular to a tunnel waterproof construction method.
Background
In the existing tunnel cracks, the pavement slab structural joints are subjected to waterproof plugging and waterproof layer breakage which are constructed at present, the appearance is that the pavement is transversely cracked, and the pavement can leak to the lower layer under the condition of running water;
The plugging materials of the anti-collision wall structural joint which are constructed at present are aged and damaged, the structural joint is connected with a drainage ditch to cause the pavement to crack, so that the pavement leaks to the lower layer under the condition that running water exists on the pavement, the cracking grouting foaming materials are aged, absorb water and store water, the plugging effect is not achieved, the running water drainage is not facilitated, and the leakage condition is aggravated;
Because the upper layer leaks, the lower layer tunnel top sets up water drainage tank, and split crack is repaired, and the leaking stoppage has destroyed the fire prevention dope layer.
Disclosure of Invention
The invention aims to provide a tunnel waterproof construction method, which aims to solve the problems that the existing plugging method cannot be completely waterproof and used for a long time after a pavement slab structural joint is cracked due to strong anti-collision in the technical background, and the tunnel waterproof construction method is provided to relieve the problems.
The invention provides a tunnel waterproof construction method which comprises the following steps of cleaning, structural seam waterproof remolding, base surface waterproof reinforcement, waterproof layer system protection and decoration:
S1, cleaning comprises pavement cleaning and structural joint cleaning;
S11, pavement cleaning comprises mechanically cleaning a damaged crack asphalt pavement, wherein the width is about 20-30 cm, and the depth is about 5cm, and polishing treatment is carried out until the reinforced concrete structural layer is reached;
S12, cleaning the structural joint, namely cutting and cleaning the original filler (1-2 cm wide and depth is about 3-5 cm in a downward treatment mode) by using a cutting sheet;
S2, waterproof remodeling of the structural joint comprises priming paint brushing, bottom layer plugging and waterproof plugging;
S21, brushing a ZN-103 epoxy primer, wherein the spreading area (0.5 kg/m 2) is 20-30 cm along the outer surface layer of the band;
S22, performing bottom blocking by using ZNJC polyurethane foam;
S23, waterproof blocking is carried out by using ZNJC high-molecular elastic polymer glue;
s3, the base surface waterproof reinforcement comprises paving ZNJC high-durability waterproof sealing adhesive tapes 5-8 cm wide and 2mm thick;
S4, the protection of the waterproof layer system comprises bottom layer treatment, a waterproof layer and waterproof layer protection;
S41, polishing and leveling the bottom layer, and rolling and coating ZN-202 water-based epoxy primer;
s42, the waterproof layer is roll-coated high polymer waterproof middle coating, and the thickness is 1mm;
S43, the waterproof layer is protected by roll-coating high polymer waterproof finish paint, and quartz sand (40-70 meshes) is required to be polished to increase the adhesive force with asphalt materials;
S5, decorating to recover the asphalt pavement.
Preferably, in the S22 bottom layer plugging, ZNJC polyurethane foam needs to be dried for six hours.
Preferably, in the S23 waterproof plugging, ZNJC high-molecular elastic polymer glue needs to be cured for three days.
Preferably, twenty-four to forty-eight hours are required to dry after the roll-on ZN-202 waterborne epoxy primer in the S41 primer treatment.
Preferably, in the waterproof layer of S42, the roll-coated polymer waterproof middle coating requires twenty-four hours of drying.
Preferably, the waterproof layer is protected in S43, requiring twenty-four to forty-eight hours of drying.
Compared with the prior art, the invention has the beneficial effects that:
1. The high-elasticity high-strength material selected for the waterproof layer has good elastic anti-cracking effect and resists cracking risks caused by road vibration;
2. performing key waterproof sealing on the pavement slab gap to isolate the structural gap from soaking;
3. Restoring the connection elasticity between the structural joints and reducing the cracking risk.
Drawings
FIG. 1 is a schematic flow chart of a tunnel waterproof construction method of the invention;
fig. 2 is a schematic diagram of a waterproof seam remodeling flow of the tunnel waterproof construction structure of the invention;
FIG. 3 is a schematic diagram of a waterproof reinforcement flow of a waterproof construction base surface of a tunnel according to the present invention;
fig. 4 is a schematic diagram of a protection flow of a waterproof layer system for tunnel waterproof construction.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment discloses a tunnel waterproof construction method, as shown in fig. 1-4, comprising the following specific steps of cleaning, structural seam waterproof remolding, base surface waterproof reinforcement, waterproof layer system protection and decoration:
s1, cleaning comprises road surface cleaning and structural joint cleaning, wherein the road surface and an anti-collision wall crack are required to be re-chiseled to a certain width and depth, and meanwhile original fillers at the crack are cleaned, so that the regular crack is more convenient for later repair treatment;
S11, pavement cleaning comprises mechanically cleaning a damaged crack asphalt pavement, wherein the width is about 20-30 cm, and the depth is about 5cm, and polishing treatment is carried out until the reinforced concrete structural layer is reached;
S12, cleaning the structural joint, namely cutting and cleaning the original filler (1-2 cm wide and depth is about 3-5 cm in a downward treatment mode) by using a cutting sheet;
S2, waterproof remodeling of the structural joint comprises priming paint coating, bottom layer plugging and waterproof plugging, wherein after pavement and anti-collision wall cracks are cleaned, the surfaces of the cracks are required to be coated with the priming paint firstly, the outer surfaces are required to be matched for simultaneous coating, after the priming paint coating is finished, the structural joint is dried for a period of time, waterproof plugging is carried out through high-molecular elastic polymer adhesive, and then waterproof sealing adhesive tapes are adhered;
S21, brushing a ZN-103 epoxy primer, wherein the spreading area (0.5 kg/m 2) is 20-30 cm along the outer surface layer of the band;
S22, performing bottom blocking by using ZNJC polyurethane foam;
S23, waterproof blocking is carried out by using ZNJC high-molecular elastic polymer glue;
s3, the base surface waterproof reinforcement comprises paving ZNJC high-durability waterproof sealing adhesive tapes 5-8 cm wide and 2mm thick;
S4, the waterproof layer system protection comprises bottom layer treatment, a waterproof layer and waterproof layer protection, after the waterproof remodeling is finished, the waterproof part is required to be protected, after the crack waterproof part is polished to be smooth, the water-based epoxy primer, the high polymer waterproof intermediate coat and the high polymer waterproof finish paint are required to be sequentially coated, and meanwhile, some quartz sand is required to be thrown on the surface of the finish paint;
S41, polishing and leveling the bottom layer, and rolling and coating ZN-202 water-based epoxy primer;
s42, the waterproof layer is roll-coated high polymer waterproof middle coating, and the thickness is 1mm;
S43, the waterproof layer is protected by roll-coating high polymer waterproof finish paint, and quartz sand (40-70 meshes) is required to be polished to increase the adhesive force with asphalt materials;
s5, decorating to recover the asphalt pavement, and re-paving asphalt at the crack to recover the asphalt pavement.
Further, in the S22 bottom layer plugging, ZNJC polyurethane foaming glue needs to be dried for six hours.
Furthermore, in the S23 waterproof plugging, ZNJC high-molecular elastic polymer glue needs to be cured for three days.
Further, in the S41 primer treatment, twenty-four to forty-eight hours are required after the ZN-202 waterborne epoxy primer is roll coated.
Further, in the waterproof layer of S42, the roll-coating polymer waterproof middle coating requires twenty-four hours of drying.
Further, the waterproof layer is protected in S43, and it is required to dry twenty-four to forty-eight hours.
The working principle is that firstly, a broken asphalt pavement is mechanically cleaned, cracks are cleaned to be about 20-30cm wide and about 5cm deep, then an original filler is cleaned to be about 1-2cm wide and about 3-5cm deep by using a cutting sheet, then ZN-103 epoxy primer is coated, the spreading area (0.5 kg/m & lt 2 & gt) is coated, 20-30cm parts with the outer surface layer are arranged, after the process is finished, the steps are kept for twenty-four hours, drying is waited, then ZNJC polyurethane foaming glue is used for bottom layer sealing, the bottom layer sealing needs to be dried for six hours, then ZNJC high-molecular elastic polymer glue is used for waterproof sealing, waterproof sealing tape needs to be maintained for three days, then ZNJC high-durability waterproof sealing tape which is 5-8 cm wide and 2mm thick can be paved, then polishing is carried out on the cracks to be smooth, ZN-202 water-based epoxy primer and high-polymer waterproof intermediate coating with the thickness of 1mm are coated, meanwhile, quartz sand (40-70 meshes) is required to be added for adhesion with asphalt materials, and finally asphalt pavement is restored.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411448599.5A CN119145888A (en) | 2024-10-16 | 2024-10-16 | Tunnel waterproof construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411448599.5A CN119145888A (en) | 2024-10-16 | 2024-10-16 | Tunnel waterproof construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119145888A true CN119145888A (en) | 2024-12-17 |
Family
ID=93813604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411448599.5A Pending CN119145888A (en) | 2024-10-16 | 2024-10-16 | Tunnel waterproof construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119145888A (en) |
-
2024
- 2024-10-16 CN CN202411448599.5A patent/CN119145888A/en active Pending
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