CN110454222A - Collapsible loess tunnel Central Drainage construction method - Google Patents
Collapsible loess tunnel Central Drainage construction method Download PDFInfo
- Publication number
- CN110454222A CN110454222A CN201910661849.6A CN201910661849A CN110454222A CN 110454222 A CN110454222 A CN 110454222A CN 201910661849 A CN201910661849 A CN 201910661849A CN 110454222 A CN110454222 A CN 110454222A
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- Prior art keywords
- drainage groove
- inverted arch
- tunnel
- construction method
- drainage
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- 238000010276 construction Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000004567 concrete Substances 0.000 claims description 13
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 239000010426 asphalt Substances 0.000 claims description 4
- 238000009412 basement excavation Methods 0.000 claims description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 2
- 235000009120 camo Nutrition 0.000 claims description 2
- 235000005607 chanvre indien Nutrition 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 239000003673 groundwater Substances 0.000 claims description 2
- 239000011487 hemp Substances 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 230000008595 infiltration Effects 0.000 abstract description 2
- 238000001764 infiltration Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 2
- 238000005345 coagulation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/10—Improving by compacting by watering, draining, de-aerating or blasting, e.g. by installing sand or wick drains
-
- 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)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present invention relates to tunneled central drainage and construction methods, specially collapsible loess tunnel Central Drainage construction method.Solve the problem of that collapsible loess tunnel inverted arch bottom leaky water cannot be discharged long-term ponding and make setting of ground by the prior art.The construction method is that drainage groove is arranged in tunnel inverted arch bottom, and the inverted arch transverse drain and roadbed transverse direction aqueduct in tunnel extend and be connected to drainage groove.Drainage groove is arranged in inverted arch bottom the present invention, and infiltration in inverted arch is discharged, avoids setting of ground, guarantees the traffic safety during operation, saves maintenance cost.For loess shallow tunnel, winter climate decline, frost penetration reaches between 1.5m-2m range, and drainage groove, which is arranged in inverted arch lower part, to be had the function of preventing pipeline from freezing, and it is unimpeded to reach draining.
Description
Technical field
The present invention relates to tunneled central drainage and construction methods, specially collapsible loess tunnel Central Drainage construction method.
Background technique
In northwest China Area distribution large-scale loess formation, compared with rock mass the soil body not only intensity is low, deformation is big, from
Title ability is small, and especially strong, tunnel excavation difficulty of construction height is influenced by water, and loess is general with higher strong when dry
Degree and bearing capacity, but after it is by water-soaked, then intensity can hurried decline, there is different degrees of collapsibility, easily lead to tunnel
Phenomena such as road collapses, setting of ground occurs.Therefore during loess tunnel construction, guarded drainage is the one of tunnel quality and safety
A important link.
Existing tunnel Central Drainage construction, first inverted arch Concrete Filled (tunnel inverted arch be by bottom reinforcing bar inverted arch and
Constituted by pouring the inverted arch Concrete Filled formed after the concrete setting on reinforcing bar inverted arch) on building section be rectangle in
Drainage groove is entreated, arrangement top is evenly equipped with the concrete drain tile of water seepage hole in Central Drainage groove, and the inverted arch in tunnel is laterally arranged
Water pipe and roadbed transverse direction aqueduct extend and are connected to Central Drainage groove, and rubble is backfilled in Central Drainage groove to inverted arch coagulation
Native fill surface (road surface will be constructed above in rubble in future).The inverted arch transverse drain and roadbed transverse direction aqueduct in tunnel are by water flow
It introduces Central Drainage groove and is entered in concrete drain tile by the water seepage hole on rubble and concrete drain tile and tunnel is discharged
Road (Central Drainage groove extends along tunnel direction, outside both ends to tunnel).Since Central Drainage groove is arranged in tunnel inverted arch,
Tunnel inverted arch bottom leaky water cannot be discharged, long-term ponding can make setting of ground, cause tunnel inverted arch and lining crack, right
Highway operation security leaves hidden danger.
Summary of the invention
The present invention solves the prior art, and collapsible loess tunnel inverted arch bottom leaky water cannot be discharged, and long-term ponding makes
The problem of setting of ground, provides a kind of collapsible loess tunnel Central Drainage construction method.
The present invention is achieved by the following technical scheme: collapsible loess tunnel Central Drainage construction method, will drain
Groove is arranged in tunnel inverted arch bottom, and the inverted arch transverse drain and roadbed transverse direction aqueduct in tunnel extend and be connected to gutter
Slot avoids tunnel foundation from sinking in this way, inverted arch bottom leaky water can be effectively discharged.Like the prior art, tunnel inverted arch is constructed
Preceding drainage groove bottom pours Guan Ji, and installation top is evenly equipped with the concrete duct of water seepage hole, backfill in drainage groove on Guan Ji
Tunnel inverted arch will be constructed above in rubble in rubble, future.
Drainage groove is arranged in inverted arch bottom the present invention, and infiltration in inverted arch is discharged, avoids setting of ground, or even cause to serve as a contrast
Cracking is built, guarantees the traffic safety during operation, saves maintenance cost.For loess shallow tunnel, winter climate decline,
Frost penetration reaches between 1.5m-2m range, and drainage groove, which is arranged in inverted arch lower part, to be had the function of preventing pipeline from freezing,
It is unimpeded to reach draining.
Detailed description of the invention
Fig. 1 is the schematic diagram of the method for the invention.
In figure: 1- drainage groove, 2- inverted arch transverse drain, 3- roadbed transverse direction aqueduct, 4- pipe base, 5- coagulation
Native pipeline.
Specific embodiment
Drainage groove 1 is arranged in tunnel inverted arch bottom collapsible loess tunnel Central Drainage construction method, and tunnel is faced upward
Arch transverse drain 2 and roadbed transverse direction aqueduct 3 extend and are connected to drainage groove 1.Like the prior art, tunnel inverted arch is applied
1 bottom of drainage groove pours pipe base 4 before work, and installation top is evenly equipped with the concrete duct 5 of water seepage hole, drainage groove 1 on Guan Ji 4
Tunnel inverted arch will be constructed above in rubble in interior backfill rubble, future.
When it is implemented, drainage groove 1 is set to groundwater resources side, facilitates horizontal hole to drain with main hole and converge；Gutter
1 section of slot is inverted trapezoidal；Drainage groove 1 excavate it is smooth after, in bottom Zhi Liguan basic mode plate, and fixation, be laid with EVA waterproof
Plate, pours 30cmC15 concrete, installs D500*6(diameter 500mm, length 6m) reinforced concrete pipiline 5, armored concrete
Upper half plane reserves Φ 20mm water seepage hole before pipeline 5 makes, with quincuncial arrangement, longitudinal pitch 40cm, reinforced concrete pipiline 5
Interface gap is clogged using pitch loose hemp fiber, and periphery simultaneously carries out heated bitumen asphalt felt two and wraps, and inverted arch transverse drain 2 uses
The punching of Φ 50mm(double-walled) bellows, for roadbed transverse direction aqueduct 3 using Φ 100PVC pipe, guarantee draining is unimpeded.
Specific construction process:
1) surveying setting-out
Line-spacing center offset distance is set according to tunnel survey using measuring instrument and releases 1 center line of drainage groove, assigns and confides a technological secret, by work
Sequence normalized construction, it is ensured that 1 position of drainage groove is accurate, requisite quality.
2) drainage groove excavates
1 slot bottom of drainage groove is to Pavement Structure Design height 3.5m, 73 ° 18 ' 3 of the outer angle of 1 sloped sides of drainage groove ", strictly
The 1 two sides gradient of control drainage groove and the longitudinal drainage ditch gradient, 1 slot bottom width 70cm of drainage groove, using mechanical excavation, manually
Cooperation, and foundation bearing capacity detection is carried out, the next step can be carried out after qualified by inspection.
3) pipe base concrete pours
Strictly modulate concrete by match ratio, every section of progresss test sampling, using poker vibrator, it is quincunx vibrate it is uniform,
Bubble-free.
4) reinforced concrete pipiline is installed
Using machinery allocation and transportation, hand fit's installation, the straight degree of pipeline is adjusted in time, carries out pipe joint construction technology, is secondly pacified
The inverted arch transverse drain 2 and roadbed transverse direction aqueduct 3 in dress tunnel are simultaneously accessed drainage groove 1.
5) rubble is backfilled
It is backfilled in drainage groove 1 using 3-5cm rubble, the strength of materials, partial size are qualified.
Claims (5)
1. a kind of collapsible loess tunnel Central Drainage construction method, which is characterized in that drainage groove (1) is arranged and is faced upward in tunnel
Encircle bottom, the inverted arch transverse drain (2) and roadbed transverse direction aqueduct (3) in tunnel extend and be connected to drainage groove (1).
2. collapsible loess tunnel Central Drainage construction method according to claim 1, which is characterized in that drainage groove
(1) it is set to groundwater resources side.
3. collapsible loess tunnel Central Drainage construction method according to claim 1 or 2, which is characterized in that gutter
Slot (1) section is inverted trapezoidal.
4. collapsible loess tunnel Central Drainage construction method according to claim 3, which is characterized in that drainage groove
(1) slot bottom is to Pavement Structure Design height 3.5m, 73 ° 18 ' 3 of the outer angle of drainage groove (1) sloped sides ", drainage groove (1) slot
Bottom width degree 70cm.
5. collapsible loess tunnel Central Drainage construction method according to claim 4, which is characterized in that drainage groove
(1) after excavation is smooth, in bottom Zhi Liguan basic mode plate, and fixation, laying EVA splash guard pour 30cmC15 concrete,
The reinforced concrete pipiline (5) of D500*6 is installed, upper half plane reserves Φ 20mm water seepage hole before reinforced concrete pipiline (5) makes,
With quincuncial arrangement, longitudinal pitch 40cm, reinforced concrete pipiline (5) interface gap is clogged using pitch loose hemp fiber, periphery
And carry out heated bitumen asphalt felt two and wrap, inverted arch transverse drain (2) uses Φ 50mm bellows, roadbed transverse direction aqueduct
(3) it is managed using Φ 100PVC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661849.6A CN110454222A (en) | 2019-07-22 | 2019-07-22 | Collapsible loess tunnel Central Drainage construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910661849.6A CN110454222A (en) | 2019-07-22 | 2019-07-22 | Collapsible loess tunnel Central Drainage construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110454222A true CN110454222A (en) | 2019-11-15 |
Family
ID=68482956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910661849.6A Pending CN110454222A (en) | 2019-07-22 | 2019-07-22 | Collapsible loess tunnel Central Drainage construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110454222A (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 |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065555B1 (en) * | 2008-12-16 | 2011-09-19 | 한국건설기술연구원 | System preventing non-woven from mortar particles filled up the back space of PCL Precasting Concrete Lining and method constructing the non-woven to PCL |
| CN102678174A (en) * | 2012-05-28 | 2012-09-19 | 中交第一公路勘察设计研究院有限公司 | Tunnel drainage system passing through permafrost region and non-frozen ground region and arrangement method thereof |
| CN104727834A (en) * | 2015-01-21 | 2015-06-24 | 中铁五局（集团）有限公司 | Summer-time face excavation construction method for high and cold permafrost ultra-long highway tunnel |
| 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 |
| CN105986836A (en) * | 2016-06-14 | 2016-10-05 | 中铁隧道勘测设计院有限公司 | Single-line railway tunnel substrate waterproof and drainage reinforcing system |
| CN106150547A (en) * | 2016-07-29 | 2016-11-23 | 中国铁道科学研究院铁道建筑研究所 | A kind of prefabricated assembled drainage system of railway tunnel bottom |
| CN106640189A (en) * | 2017-02-22 | 2017-05-10 | 西南交通大学 | Pressure bearing tunnel bottom structure drainage system and construction method thereof |
| CN206233951U (en) * | 2016-11-11 | 2017-06-09 | 中铁十二局集团第三工程有限公司 | Depressurize drainage system in a kind of high-speed railway double track tunnel base |
| CN107401413A (en) * | 2017-08-29 | 2017-11-28 | 中铁第勘察设计院集团有限公司 | Tunnel structure for expansive stratum |
| CN109779682A (en) * | 2019-03-08 | 2019-05-21 | 中铁十九局集团第三工程有限公司 | A kind of water abundant ground vcehicular tunnel gutter structural system |
-
2019
- 2019-07-22 CN CN201910661849.6A patent/CN110454222A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101065555B1 (en) * | 2008-12-16 | 2011-09-19 | 한국건설기술연구원 | System preventing non-woven from mortar particles filled up the back space of PCL Precasting Concrete Lining and method constructing the non-woven to PCL |
| CN102678174A (en) * | 2012-05-28 | 2012-09-19 | 中交第一公路勘察设计研究院有限公司 | Tunnel drainage system passing through permafrost region and non-frozen ground region and arrangement method thereof |
| 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 |
| CN104727834A (en) * | 2015-01-21 | 2015-06-24 | 中铁五局（集团）有限公司 | Summer-time face excavation construction method for high and cold permafrost ultra-long highway tunnel |
| CN105986836A (en) * | 2016-06-14 | 2016-10-05 | 中铁隧道勘测设计院有限公司 | Single-line railway tunnel substrate waterproof and drainage reinforcing system |
| CN106150547A (en) * | 2016-07-29 | 2016-11-23 | 中国铁道科学研究院铁道建筑研究所 | A kind of prefabricated assembled drainage system of railway tunnel bottom |
| CN206233951U (en) * | 2016-11-11 | 2017-06-09 | 中铁十二局集团第三工程有限公司 | Depressurize drainage system in a kind of high-speed railway double track tunnel base |
| CN106640189A (en) * | 2017-02-22 | 2017-05-10 | 西南交通大学 | Pressure bearing tunnel bottom structure drainage system and construction method thereof |
| CN107401413A (en) * | 2017-08-29 | 2017-11-28 | 中铁第勘察设计院集团有限公司 | Tunnel structure for expansive stratum |
| CN109779682A (en) * | 2019-03-08 | 2019-05-21 | 中铁十九局集团第三工程有限公司 | A kind of water abundant ground vcehicular tunnel gutter structural system |
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 | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20191115 |