CN109209450B - Tunnel inverted arch full-section waterproof board paving and hanging structure in corrosive stratum - Google Patents
Tunnel inverted arch full-section waterproof board paving and hanging structure in corrosive stratum Download PDFInfo
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- CN109209450B CN109209450B CN201811275670.9A CN201811275670A CN109209450B CN 109209450 B CN109209450 B CN 109209450B CN 201811275670 A CN201811275670 A CN 201811275670A CN 109209450 B CN109209450 B CN 109209450B
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- waterproof board
- angle steel
- waterproof
- section
- inverted arch
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 46
- 239000010959 steel Substances 0.000 claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims description 22
- 238000004873 anchoring Methods 0.000 claims description 16
- 239000004677 Nylon Substances 0.000 claims description 6
- 229920001778 nylon Polymers 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 5
- 239000012943 hotmelt Substances 0.000 claims description 4
- 230000035515 penetration Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 12
- 239000003673 groundwater Substances 0.000 abstract description 5
- 230000009545 invasion Effects 0.000 abstract description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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
- E21D11/381—Setting apparatus or devices
-
- 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
- E21D11/385—Sealing means positioned between adjacent lining members
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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)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a paving and hanging structure of a tunnel inverted arch full-section waterproof board in a corrosive stratum, wherein the waterproof board is integrally U-shaped, is paved to be close to the profile of the tunnel inverted arch section, and completely covers the tunnel inverted arch section; a plurality of waterproof boards are welded and fixed in proper order along the mileage direction in tunnel corrosivity section, both ends are equipped with adjustable fixing device respectively about every waterproof board, adjustable fixing device includes the elasticity bolt, C type anchor clamps, "7" font angle steel, the turnbuckle, "L" shape angle steel, the anchor reinforcing bar, L "shape angle steel level is shelved on a plurality of anchor reinforcing bars, the width direction along the waterproof board has set up a plurality of turnbuckles at the interval in proper order, the upper end of turnbuckle is colluded and is hung on" L "shape angle steel, the lower extreme of turnbuckle is colluded and is hung on" 7 "font angle steel. This full section waterproof board spreads and hangs structure, economical effective, construction are quick, can effectively solve the invasion of corrosive groundwater and cause the disadvantage to tunnel supporting construction's reinforcing bar and concrete durability.
Description
Technical Field
The invention relates to the technical field of tunnel construction, in particular to a full-section waterproof plate paving and hanging structure for preventing corrosion caused by the fact that underground water permeates lining concrete in a corrosive rock stratum.
Background
Groundwater in the corrosive rock stratum is extremely unfavorable for the durability of reinforcing steel bars and concrete of a tunnel supporting structure. For the section with groundwater erosion, it is also important to strengthen the prevention and control of groundwater while strengthening the self corrosion resistance of concrete. At present, aiming at groundwater invasion in a corrosive rock stratum, a waterproof plate half-section paving and hanging mode is generally adopted, namely, the waterproof plates are paved and hung at the positions, close to lining concrete, of the left side and the right side of an inverted arch, the paving and hanging mode of the waterproof plates is complex, operation is inconvenient, construction efficiency is low, economic cost is high, and waterproof effect is not ideal.
Disclosure of Invention
The invention aims to provide an economical, effective and quick-construction tunnel inverted arch full-section waterproof board paving and hanging structure which can effectively solve the problem that corrosive underground water invasion causes disadvantages to the durability of reinforcing steel bars and concrete of a tunnel supporting structure.
Therefore, the technical scheme adopted by the invention is as follows: a waterproof board paving and hanging structure for a tunnel inverted arch full-section in a corrosive stratum comprises a waterproof board, wherein the waterproof board is integrally U-shaped, is paved close to the profile of the tunnel inverted arch section and covers the tunnel inverted arch section completely; the waterproof boards are sequentially welded and fixed along the mileage direction of the corrosive section of the tunnel, and the welding section of each waterproof board is a smooth surface; the left end and the right end of each waterproof board are respectively provided with an adjustable fixing device, each adjustable fixing device comprises a tightening bolt, a C-shaped clamp, a 7-shaped angle steel, a turnbuckle, an L-shaped angle steel and an anchoring steel bar, the tightening bolts are sequentially arranged along the width direction of the waterproof board at intervals and fix the ends of the waterproof board on a tunnel lining support surface, the anchoring steel bars are horizontally driven into a bed rock surface along the width direction of the waterproof board at intervals, the exposed sections of the anchoring steel bars are upwards bent to form anti-falling heads, the L-shaped angle steel is horizontally placed on a plurality of anchoring steel bars, the ends of the waterproof board and the 7-shaped angle steel horizontally penetrate through the C-shaped clamps, so that the ends of the waterproof board are clamped and fixed through the 7-shaped angle steel and the C-shaped clamps, the turnbuckles are sequentially arranged along the width direction of the waterproof board at intervals, the upper ends of the turnbuckle are hung on the L-shaped angle steel, the lower end of the turn buckle is hooked on the 7-shaped angle steel.
Preferably, the waterproof board adopts self-adhesive waterproof board, and both ends set up 20cm smooth surface and regard as the welding overlap joint section, turnbuckle's regulation length is greater than 20cm, and adjacent waterproof board passes through the hot melt packing ring overlap joint together, the diameter of anchor reinforcing bar is phi 22mm, and the anchor degree of depth is 40cm, C type anchor clamps are 5 cun C type anchor clamps. Add the hot melt packing ring, increase adjacent waterproof board welded fastness to optimize the size, ensure the steadiness of installation.
Preferably, the waterproof board adopts ultrasonic waves to carry out double-weld-seam welding, the width of a single weld seam is not less than 15mm, false welding, missing welding and penetration welding are avoided, and the welding firmness is further ensured.
Further preferably, the thickness of waterproof board is 1.5mm, and length is 12m, and the width is 3m, and anchor reinforcing bar interval 1m equidistance sets up, and the elasticity bolt interval 60cm equidistance sets up, and the lag bolt interval 1.2m equidistance sets up, and anchor reinforcing bar, elasticity bolt, lag bolt all stagger the setting, the erection joint of each spare part of being convenient for, convenient operation construction.
Further preferably, the left end and the right end of the waterproof board are provided with nylon rope hanging holes, and the waterproof board is lifted through the nylon ropes, so that construction is easier and labor-saving.
The invention has the beneficial effects that:
(1) the waterproof plate is paved and hung on the full section, so that corrosive underground water can be thoroughly and effectively prevented from invading, and the durability of the reinforcing steel bars and the concrete of the tunnel supporting structure is protected;
(2) the waterproof board is hung and installed, and is properly adjusted by combining with the adjustable fixing device, so that the quick installation of the waterproof board can be met, and the waterproof board is high in construction efficiency, economical and practical;
(3) the waterproof board is firstly adjusted in place in a hanging mode and then fixed on the initial tunnel supporting surface by combining the elastic bolts, so that the mounting stability is further improved.
In conclusion, the full-section waterproof board paving and hanging structure is economical, effective and rapid in construction, and can effectively solve the problem that the durability of reinforcing steel bars and concrete of a tunnel supporting structure is unfavorable due to invasion of corrosive underground water.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the adjustable fixing device (the turnbuckle is not hooked on the 7-shaped angle iron yet).
Fig. 3 is an enlarged view of a portion B of fig. 2.
Fig. 4 is a partial side view of fig. 1.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
referring to fig. 1-4, the full-section waterproof plate paving and hanging structure for the tunnel inverted arch in the corrosive stratum mainly comprises a waterproof plate 1, a tightening bolt 2, a C-shaped clamp 3, a 7-shaped angle steel 4, a turnbuckle 5, an L-shaped angle steel 6 and an anchoring steel bar 7.
The waterproof board 1 is integrally U-shaped, is tightly attached to the profile of the tunnel inverted arch section and is laid, the tunnel inverted arch section is completely covered, and compared with the traditional structure that the waterproof board is only laid at the positions, close to the secondary lining, of the left side and the right side of the inverted arch, the effect of preventing the invasion of underground water is more thorough.
The waterproof plates 1 are sequentially welded and fixed along the mileage direction of the corrosive section of the tunnel, and the number of the waterproof plates 1 is determined according to the section length of corrosive underground water. The welding section of each waterproof board 1 is a smooth surface so that the adjacent waterproof boards 1 can be conveniently welded through the smooth surfaces.
The left and right ends of each waterproof board 1 are respectively provided with an adjustable fixing device A. The adjustable fixing device A mainly comprises an elastic bolt 2, a C-shaped clamp 3, a 7-shaped angle steel 4, a turn buckle 5, an L-shaped angle steel 6 and an anchoring steel bar 7. The number of the 7-shaped angle steel 4 and the L-shaped angle steel 6 which are arranged on each waterproof board 1 is more than one, and the number of the elastic bolts 2, the C-shaped clamp 3, the turn-buckle bolts 5 and the anchoring steel bars 7 is more than one.
The elastic bolts 2 are sequentially arranged at intervals along the width direction of the waterproof plate 1 and fix the end of the waterproof plate 1 on the tunnel lining supporting surface. The anchoring reinforcing steel bars 7 are horizontally driven into the bedrock face at intervals along the width direction of the waterproof board 1, exposed sections of the anchoring reinforcing steel bars 7 are upwards bent into anti-falling heads 7a, the L-shaped angle steel 6 is horizontally placed on the anchoring reinforcing steel bars 7, and the anti-falling heads 7a can effectively prevent the L-shaped angle steel 6 from falling out.
The end of the waterproof board 1 and the 7-shaped angle steel 4 horizontally penetrate through the plurality of C-shaped clamps 3, so that the end of the waterproof board 1 is clamped and fixed through the 7-shaped angle steel 4 and the C-shaped clamps 3.
A plurality of turn buckle bolts 5 are arranged along the width direction of the waterproof board 1 at intervals in sequence, the upper ends of the turn buckle bolts 5 are hooked on the L-shaped angle steel 6, and the lower ends of the turn buckle bolts 5 are hooked on the 7-shaped angle steel 4. The L-shaped angle steel 6 and the 7-shaped angle steel 4 are angle steels which are named differently to show the distinction, and simultaneously reflect the different arrangement modes of the two angle steels.
Preferably, the waterproof board 1 is a self-adhesive waterproof board, and two ends of the waterproof board are provided with 20cm smooth surfaces as welding lap sections. The adjusting length of the turn buckle 5 is more than 20cm, the adjacent waterproof plates 1 are welded together through hot-melt gaskets (not shown in the figure), the diameter of the anchoring reinforcing steel bar 7 is phi 22mm, the anchoring depth is 40cm, and the C-shaped clamp 3 is a 5-inch C-shaped clamp.
In addition, the waterproof board 1 is best to adopt ultrasonic wave to carry out double-weld-seam welding, the width of a single weld seam is not less than 15mm, and false welding, missing welding and penetration welding cannot be carried out.
The thickness of waterproof board 1 is 1.5mm, and length is 12m, and the width is 3m and is suitable, and anchor reinforcing bar 7 intervals 1m equidistance sets up, and 2 intervals 60cm equidistance settings of lag bolt, and 5 intervals 1.2m equidistance settings of lag bolt, and anchor reinforcing bar 7, lag bolt 2, lag bolt 5 all stagger the setting.
The left end and the right end of the waterproof board 1 are provided with nylon rope hanging holes (not shown in the figure), and the waterproof board 1 is lifted through the nylon ropes, so that subsequent paving and hanging construction is facilitated.
Construction specification:
1. the waterproof board is laid smoothly without wrinkles and has consistent tightness;
2. strictly preventing the waterproof board from being punctured due to the existence of spikes on the laying surface of the waterproof board;
3. the waterproof plate is welded without the occurrence of false welding, missing welding and penetration welding, and an inflation test is carried out according to the requirement;
4. after the waterproof board construction is finished, the waterproof board is protected by paying attention and cannot be punctured and damaged.
Claims (5)
1. The utility model provides a structure is laid to full section waterproof board of tunnel invert in aggressive stratum, includes waterproof board (1), its characterized in that: the waterproof plate (1) is integrally U-shaped, is laid to be close to the profile of the tunnel inverted arch section, and completely covers the tunnel inverted arch section; the waterproof boards (1) are sequentially welded and fixed along the mileage direction of the corrosive section of the tunnel, and the welding section of each waterproof board (1) is a smooth surface; the left end and the right end of each waterproof board (1) are respectively provided with an adjustable fixing device (A), each adjustable fixing device (A) comprises an elastic bolt (2), C-shaped clamps (3), 7-shaped angle steel (4), a turn buckle (5), L-shaped angle steel (6) and anchoring steel bars (7), the elastic bolts (2) are sequentially arranged at intervals along the width direction of the waterproof board (1) and fix the end of the waterproof board (1) on a tunnel lining supporting surface, the anchoring steel bars (7) are horizontally driven into a bed rock surface along the width direction of the waterproof board (1), exposed sections of the anchoring steel bars (7) are upwards bent into anti-falling heads (7a), the L-shaped angle steel (6) are horizontally placed on the anchoring steel bars (7), the end of the waterproof board (1) and the 7-shaped angle steel (4) horizontally penetrate through the C-shaped clamps (3), the end of the waterproof board (1) is clamped and fixed through a 7-shaped angle steel (4) and a C-shaped clamp (3), a plurality of turn bolts (5) are sequentially arranged at intervals along the width direction of the waterproof board (1), the upper ends of the turn bolts (5) are hooked on the L-shaped angle steel (6), and the lower ends of the turn bolts (5) are hooked on the 7-shaped angle steel (4).
2. The inverted arch full-face waterproof board paving structure in the corrosive stratum of claim 1, which is characterized in that: waterproof board (1) adopts the self-adhesive type waterproof board, and both ends set up 20cm smooth surface as the welding overlap joint section, the regulation length of turnbuckle (5) is greater than 20cm, and adjacent waterproof board (1) is put together through the hot melt packing ring overlap joint, the diameter of anchor reinforcing bar (7) is phi 22mm, and the anchor degree of depth is 40cm, C type anchor clamps (3) are 5 cun C type anchor clamps.
3. The inverted arch full-face waterproof board paving structure in the corrosive stratum as claimed in claim 2, wherein: the waterproof board (1) adopts ultrasonic waves to carry out double-weld-seam welding, the width of a single weld seam is not less than 15mm, and false welding, missing welding and penetration welding cannot be carried out.
4. The inverted arch full-face waterproof board paving structure in the corrosive stratum of claim 1, which is characterized in that: the thickness of waterproof board (1) is 1.5mm, and length is 12m, and the width is 3m, and anchor reinforcing bar (7) interval 1m equidistance sets up, and lag bolt (2) interval 60cm equidistance sets up, and lag bolt (5) interval 1.2m equidistance sets up, and anchor reinforcing bar (7), lag bolt (2), lag bolt (5) all stagger the setting.
5. The inverted arch full-face waterproof board paving structure in the corrosive stratum of claim 1, which is characterized in that: the left end and the right end of the waterproof plate (1) are provided with nylon rope hanging holes, and the waterproof plate (1) is lifted through the nylon ropes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275670.9A CN109209450B (en) | 2018-10-30 | 2018-10-30 | Tunnel inverted arch full-section waterproof board paving and hanging structure in corrosive stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811275670.9A CN109209450B (en) | 2018-10-30 | 2018-10-30 | Tunnel inverted arch full-section waterproof board paving and hanging structure in corrosive stratum |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109209450A CN109209450A (en) | 2019-01-15 |
| CN109209450B true CN109209450B (en) | 2020-02-11 |
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| CN201811275670.9A Active CN109209450B (en) | 2018-10-30 | 2018-10-30 | Tunnel inverted arch full-section waterproof board paving and hanging structure in corrosive stratum |
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Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH652448A5 (en) * | 1981-03-14 | 1985-11-15 | Vatag | Method and arrangement for sealing structures |
| DE50003291D1 (en) * | 1999-07-06 | 2003-09-18 | Tecton Holding Ag Luzern | DEVICE FOR LAYING SEALING FILMS BY ADHESIVE ON WALLS OF CONSTRUCTIONS |
| CN201433776Y (en) * | 2009-05-27 | 2010-03-31 | 中南大学 | Dual-source heat supply type back-pasting drainable water-stop |
| CN102140921A (en) * | 2011-03-30 | 2011-08-03 | 长安大学 | Novel tunnel waterproof structure |
| CN204344142U (en) * | 2014-12-15 | 2015-05-20 | 中铁四局集团第三建设有限公司 | A kind of fixed structure of constructing tunnel waterstop |
| CN204532378U (en) * | 2015-01-27 | 2015-08-05 | 中铁二院工程集团有限责任公司 | Subway tunneling boring rock tunnel development machine engineering method tunnel water handling constructs |
| CN204677213U (en) * | 2015-03-23 | 2015-09-30 | 陈春来 | A kind of point pool waterproof layer structure |
| KR101785409B1 (en) * | 2015-12-15 | 2017-10-17 | 한국철도기술연구원 | Fixing device for perforated drainpipes of tunnel side walls and the construction method of perforated drainpipes therefor |
| CN206385769U (en) * | 2016-12-28 | 2017-08-08 | 上海江蓝实业有限公司 | The application structure of combined type tapping screw and hanging part on base course wall decorative architecture |
| CN207080239U (en) * | 2017-06-29 | 2018-03-09 | 中国水利水电第十四工程局有限公司 | A kind of fixing device of longitudinal waterstop |
| CN207131426U (en) * | 2017-09-13 | 2018-03-23 | 中交一公局桥隧工程有限公司 | A kind of tunnel longitudinal direction waterstop holding clamp |
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Inventor after: Zhang Yugui Inventor after: Wang Peng Inventor after: Liu Zhiguo Inventor after: Wu Lina Inventor after: Xiong Xiaohui Inventor after: Zhao Fan Inventor after: Huang Ming Inventor after: Yang Xiangying Inventor before: Zhang Yugui Inventor before: Wang Peng Inventor before: Liu Zhiguo Inventor before: Wu Lina Inventor before: Xiong Xiaohui Inventor before: Zhao Fan Inventor before: Huang Ming Inventor before: Yang Xiangying |
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