CN110374676A - Freeway tunnel Central Drainage construction method - Google Patents
Freeway tunnel Central Drainage construction method Download PDFInfo
- Publication number
- CN110374676A CN110374676A CN201910662880.1A CN201910662880A CN110374676A CN 110374676 A CN110374676 A CN 110374676A CN 201910662880 A CN201910662880 A CN 201910662880A CN 110374676 A CN110374676 A CN 110374676A
- Authority
- CN
- China
- Prior art keywords
- central drainage
- groove
- cover board
- construction method
- drainage groove
- 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.)
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 33
- 239000004567 concrete Substances 0.000 claims abstract description 44
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 238000005266 casting Methods 0.000 claims description 4
- 239000011150 reinforced concrete Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009415 formwork Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 238000009417 prefabrication 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F16/00—Drainage
- E21F16/02—Drainage of tunnels
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to freeway tunnel drainage constructions, specially freeway tunnel Central Drainage construction method.Existing freeway tunnel Central Drainage construction method is solved, the problem easy to damage of the concrete drain tile in Central Drainage groove.The construction method is realized by following steps: 1) Central Drainage groove is constructed in inverted arch Concrete Filled, Central Drainage groove is made of the narrow groove of lower part, the wide groove on top and horizontal support surface excessive between the two；2) transverse drain in tunnel and road surface transverse direction aqueduct extend and are connected to the narrow groove of Central Drainage groove lower part；3) cover board is set on Central Drainage groove upper berth, cover board two sides are respectively supported in the horizontal support surface on Central Drainage groove two sidewalls；4) on the cover board in square wide groove fill concrete to inverted arch Concrete Filled face.Water flow is introduced the narrow groove of Central Drainage groove lower part and is expelled directly out tunnel by transverse drain and road surface transverse direction aqueduct.
Description
Technical field
The present invention relates to freeway tunnel drainage constructions, specially freeway tunnel Central Drainage construction method.
Background technique
In freeway tunnel construction, the quality for influencing vcehicular tunnel construction quality has several factors, and wherein water is most
One of important factor, tunnel water handling are an important links of tunnel construction quality, while being also that operating procedure is numerous
One of miscellaneous, biggish link of difficulty of construction, is always valued by the people.In guarded drainage construction, Central Drainage construction is especially heavy
It wants.
Existing freeway tunnel Central Drainage construction, it is trapezoidal center that section is first constructed on inverted arch Concrete Filled
Drainage groove, arrangement top is evenly equipped with the concrete drain tile of water seepage hole in Central Drainage groove, the transverse drain in tunnel and
Road surface transverse direction aqueduct extends and is connected to Central Drainage groove, and rubble is backfilled in Central Drainage groove to inverted arch Concrete Filled
Face (road surface will be constructed above in rubble in future).Water flow is introduced Central Drainage groove by transverse drain and road surface transverse direction aqueduct
And is entered in concrete drain tile by the water seepage hole on rubble and concrete drain tile and tunnel (Central Drainage groove edge is discharged
Tunnel direction extends, outside both ends to tunnel).The laggard walking along the street surface construction of tunnel holing through.In the construction process, oversize vehicle is more,
Vehicle is pressed on rubble, in addition tunnel dark, and vehicle pass-through is easy to make the concrete drain tile in central drainage groove
At damage, to cannot ensure that tunnel drainage is unobstructed, causes road surface the harm such as to crack or deform, influence later period operation peace
Entirely.
Summary of the invention
The present invention solves existing freeway tunnel Central Drainage construction method, the concrete draining in Central Drainage groove
Pipe problem easy to damage during constructing tunnel provides a kind of improved freeway tunnel Central Drainage construction method, with
Overcome the problems, such as of the existing technology.
The present invention is achieved by the following technical scheme: freeway tunnel Central Drainage construction method, is by as follows
Step is realized: 1) Central Drainage groove is constructed in inverted arch Concrete Filled, Central Drainage groove is by the narrow groove of lower part, top
Wide groove and excessive between the two horizontal support surface constitute；2) transverse drain in tunnel and road surface transverse direction aqueduct extend
And it is connected to the narrow groove of Central Drainage groove lower part；3) cover board is set on Central Drainage groove upper berth, cover board two sides support respectively
In the horizontal support surface on Central Drainage groove two sidewalls；4) fill concrete is mixed to inverted arch in the wide groove of side on the cover board
Solidifying soil fill surface.Water flow is introduced the narrow groove of Central Drainage groove lower part and direct by transverse drain and road surface transverse direction aqueduct
Tunnel is discharged.
Present invention omits concrete drain tile in the prior art, the shape of Central Drainage groove is changed, and in
Cover board is laid on the drainage groove of centre, it is current to can satisfy oversize vehicle to fill surface for fill concrete at the top of cover board, it is ensured that center
Gutter globality is good, reaches that waterproof is reliable, draining is unobstructed, it is ensured that safety for tunnel engineering is high-quality and efficient.It is of the present invention to apply
The operation of work method is easy, does not need special construction mechanical equipment, without putting into specific fund purchase special construction equipment.
Detailed description of the invention
Fig. 1 is the schematic diagram of construction method of the present invention；
Fig. 2 is the schematic cross section of centre drain slot template.
In figure: the narrow groove of 1-, 2- wide groove, 3- horizontal support surface, the transverse drain in the tunnel 4-, the road surface 5- are horizontal
To aqueduct, 6- cover board, 7- inverted arch Concrete Filled face.
Specific embodiment
Freeway tunnel Central Drainage construction method, is realized by following steps: 1) structure in inverted arch Concrete Filled
Central Drainage groove is built, Central Drainage groove is by the narrow groove 1 of lower part, the wide groove 2 on top and level excessive between the two
Supporting surface 3 is constituted；2) transverse drain 4 in tunnel and road surface transverse direction aqueduct 5 extend and are connected to Central Drainage groove lower part
Narrow groove 1；3) cover board 6 is set on Central Drainage groove upper berth, 6 two sides of cover board are respectively supported on Central Drainage groove two sidewalls
Horizontal support surface 3 on；4) in the wide groove 2 above cover board 6 fill concrete to inverted arch Concrete Filled face.
When it is implemented, building Central Drainage groove is that (tunnel inverted arch is the steel by bottom in reinforcing bar inverted arch in step 1)
Muscle inverted arch and constituted by pouring the inverted arch Concrete Filled formed after the concrete setting on reinforcing bar inverted arch) pour before, in steel
Centre drain slot template is fixed on muscle inverted arch, then casting concrete takes template after concrete setting on reinforcing bar inverted arch
Out, to form Central Drainage groove in inverted arch Concrete Filled.The narrow groove 1 of Central Drainage groove lower part, top width
Groove 2 is rectangle.Cover board 6 uses reinforced concrete prefabricated board.Narrow groove 1 the width 40cm, depth of Central Drainage groove lower part
40cm, 2 width 60cm of wide groove, the depth 35cm on Central Drainage groove top；Cover board 6 grows 50 cm, width 60cm, thickness 10cm.
Specific construction process:
1) surveying setting-out
Go out tunnel center line with whole station device measuring, tunnel inverted arch has been constructed one section of one section of measuring, to guarantee that Central Drainage groove is applied
Make promptly and accurately, and the tunnel position of center line gone out to measuring is told somebody what one's real intentions are.
2) centre drain slot template is installed
The eliminating impurities that reinforcing bar inverted arch surface construction is left are clean, carry out centre drain slot template paragraph by paragraph according to center line
Formwork, formwork length is actually determined according to scene each time, while meeting the advanced centre drain slot template of reinforcing bar inverted arch
Formwork, centre drain slot template is placed in reinforcing bar inverted arch upper surface and adds diagonal brace firm supporting to the side form of template, in order to avoid pour
Template shifts when building concrete, and Central Drainage groove size is caused not meet design requirement.It can be into after template installation is qualified on inspection
Row further work.
3) concrete placings
Concrete mixing station used is poured by match ratio concentrated compactness, concrete tank is transported to construction site, is being set in casting process
Meter requires position installation transverse drain 4 and road surface transverse direction aqueduct 5.
Concrete slump is observed in casting process at any time, to control concrete workability index, the drop height degree that freely inclines must not exceed 2m,
It is subject to and isolation does not occur.Poker vibrator moving distance should ensure that concrete by jolt ramming, and each position is vibrated continuity
Time should ensure that concrete obtains enough compactness, and curing time is no less than 7-14 days.
4) cover board production and installation
Cover board 6 is made in prefabrication practice, the size of the cover plate 50*60*10cm.Cover board reinforcing bar is made of φ 8 and 12 two kinds of φ,
It is bound by design requirement.6 concrete label of cover board is consistent with inverted arch Concrete Filled.
Cover board, which pours, to be completed and is installed after meeting design strength, and installation is by progress paragraph by paragraph.
5) fill concrete at the top of cover board
Fill concrete is to inverted arch Concrete Filled face in the wide groove 2 above cover board 6, and concrete label is the same as inverted arch Concrete Filled
Unanimously.
Claims (6)
1. a kind of freeway tunnel Central Drainage construction method, which is characterized in that realized by following steps: 1) mixed in inverted arch
Central Drainage groove is constructed in solidifying soil filling, Central Drainage groove is by the narrow groove (1) of lower part, the wide groove (2) and two on top
Excessive horizontal support surface (3) is constituted between person；2) transverse drain (4) in tunnel and road surface transverse direction aqueduct (5) extend simultaneously
It is connected to the narrow groove (1) of Central Drainage groove lower part；3) it is set cover board (6) on Central Drainage groove upper berth, cover board (6) two sides point
It is not supported in the horizontal support surface (3) on Central Drainage groove two sidewalls；4) it is returned in the wide groove (2) above cover board (6)
Concrete is filled out to inverted arch Concrete Filled face.
2. freeway tunnel Central Drainage construction method according to claim 1, which is characterized in that in step 1), structure
Building Central Drainage groove is centre drain slot template to be fixed on reinforcing bar inverted arch, then reinforcing bar is faced upward before reinforcing bar inverted arch pours
Casting concrete on arch takes out template after concrete setting, to form centre drain in inverted arch Concrete Filled
Slot.
3. freeway tunnel Central Drainage construction method according to claim 1 or 2, which is characterized in that Central Drainage
The narrow groove (1) of lower trench, the wide groove (2) on top are rectangle.
4. freeway tunnel Central Drainage construction method according to claim 3, which is characterized in that cover board (6) uses
Reinforced concrete prefabricated board.
5. freeway tunnel Central Drainage construction method according to claim 4, which is characterized in that Central Drainage groove
Narrow groove (1) width 40cm, the depth 40cm of lower part, wide groove (2) width 60cm, the depth 35cm on Central Drainage groove top；Cover board
(6) long 50 cm, width 60cm, thickness 10cm.
6. freeway tunnel Central Drainage construction method according to claim 1, which is characterized in that building Central Drainage
Groove and laying cover board (6) are to carry out paragraph by paragraph.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662880.1A CN110374676A (en) | 2019-07-22 | 2019-07-22 | Freeway tunnel Central Drainage construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910662880.1A CN110374676A (en) | 2019-07-22 | 2019-07-22 | Freeway tunnel Central Drainage construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110374676A true CN110374676A (en) | 2019-10-25 |
Family
ID=68254947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910662880.1A Pending CN110374676A (en) | 2019-07-22 | 2019-07-22 | Freeway tunnel Central Drainage construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110374676A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501967A (en) * | 2020-04-20 | 2020-08-07 | 招商局重庆交通科研设计院有限公司 | Scheme for adding central trench to tunnel without interrupting traffic and rapid construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105514A (en) * | 2003-08-12 | 2005-04-21 | Hokuetsu:Kk | Side ditch block regulating position of lid slab |
| CN202483588U (en) * | 2012-01-12 | 2012-10-10 | 中国市政工程西北设计研究院有限公司 | Self water-proof drainage system of tunnel lining |
| CN104329118A (en) * | 2014-11-05 | 2015-02-04 | 甘肃路桥第四公路工程有限责任公司 | Inserted convex integral central drainage ditch device in road tunnel |
| CN204357485U (en) * | 2014-12-11 | 2015-05-27 | 中铁十一局集团第五工程有限公司 | The drainage system of anti-tunnel double-lining behind ponding crossfire |
| CN204457864U (en) * | 2015-01-19 | 2015-07-08 | 中铁十八局集团有限公司 | The narrow tunnel drainage structure of a kind of rich water |
| CN204572015U (en) * | 2015-04-15 | 2015-08-19 | 西安科技大学 | A kind of tunnel shunting combined type waterproof and water drainage system |
| CN106523028A (en) * | 2017-01-05 | 2017-03-22 | 中铁工程设计咨询集团有限公司 | Tunnel center drainage pipe and laying method thereof |
| CN207131449U (en) * | 2017-08-31 | 2018-03-23 | 中铁二院工程集团有限责任公司 | Region of FuShui tunnel inverted arch discharge structure |
-
2019
- 2019-07-22 CN CN201910662880.1A patent/CN110374676A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005105514A (en) * | 2003-08-12 | 2005-04-21 | Hokuetsu:Kk | Side ditch block regulating position of lid slab |
| CN202483588U (en) * | 2012-01-12 | 2012-10-10 | 中国市政工程西北设计研究院有限公司 | Self water-proof drainage system of tunnel lining |
| CN104329118A (en) * | 2014-11-05 | 2015-02-04 | 甘肃路桥第四公路工程有限责任公司 | Inserted convex integral central drainage ditch device in road tunnel |
| CN204357485U (en) * | 2014-12-11 | 2015-05-27 | 中铁十一局集团第五工程有限公司 | The drainage system of anti-tunnel double-lining behind ponding crossfire |
| CN204457864U (en) * | 2015-01-19 | 2015-07-08 | 中铁十八局集团有限公司 | The narrow tunnel drainage structure of a kind of rich water |
| CN204572015U (en) * | 2015-04-15 | 2015-08-19 | 西安科技大学 | A kind of tunnel shunting combined type waterproof and water drainage system |
| CN106523028A (en) * | 2017-01-05 | 2017-03-22 | 中铁工程设计咨询集团有限公司 | Tunnel center drainage pipe and laying method thereof |
| CN207131449U (en) * | 2017-08-31 | 2018-03-23 | 中铁二院工程集团有限责任公司 | Region of FuShui tunnel inverted arch discharge structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501967A (en) * | 2020-04-20 | 2020-08-07 | 招商局重庆交通科研设计院有限公司 | Scheme for adding central trench to tunnel without interrupting traffic and rapid construction method |
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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 | ||
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Application publication date: 20191025 |