CN103410563B - Cold-proof drain cavern - Google Patents
Cold-proof drain cavern Download PDFInfo
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- CN103410563B CN103410563B CN201310312367.2A CN201310312367A CN103410563B CN 103410563 B CN103410563 B CN 103410563B CN 201310312367 A CN201310312367 A CN 201310312367A CN 103410563 B CN103410563 B CN 103410563B
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- cold
- drain cavern
- proof drain
- conduit pipe
- proof
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- 239000002689 soil Substances 0.000 claims abstract description 17
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims description 7
- 238000004321 preservation Methods 0.000 claims description 5
- 239000011178 precast concrete Substances 0.000 claims description 3
- 230000001932 seasonal effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000007710 freezing Methods 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 5
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 230000009746 freeze damage Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 201000009240 nasopharyngitis Diseases 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Abstract
The invention provides a kind of cold-proof drain cavern, below the frozen soil section being layed in tunnel in cold area, conduit pipe is equipped with in cold-proof drain cavern, conduit pipe is communicated with the gutter below non-frozen soil section, the cross-sectional area of conduit pipe is much smaller than the cross-sectional area of cold-proof drain cavern, and the outer wall of conduit pipe and the inwall of cold-proof drain cavern are all covered with insulation layer; The outlet of cold-proof drain cavern is tilting delivery port or buried type delivery port, and exit is closed, and only draws conduit pipe.Cold-proof drain cavern is communicated with tunnel in cold area by manhole, and manhole entrance is provided with well lid able to turn on or off.Under the cold-proof drain cavern passing through ever-frozen ground section does not need the prerequisite of sluicing function, conduit pipe and insulation layer can effectively prevent current from freezing, the outlet closed has delayed the rate of temperature fall in hole, the well lid of manhole entrance was opened before dead season, warm air outside hole can be introduced, for leaving heat deposit dead season, ensure that water flow energy unimpededly passes through the ever-frozen ground section of tunnel in cold area.
Description
Technical field
The present invention relates to a kind of tunnel drainage system, particularly relating to a kind of cold-proof drain cavern of the tunnel in cold area diversion for passing through ever-frozen ground section.
Background technology
Widely, wherein ever-frozen ground is mainly distributed in northeast Xing'anling mountains and song-Nen plain is northern and western high mountain and Qinghai-Tibet Platean to the distribution of China permafrost region, and is sporadicly distributed in some alpine region in Frozen Area.China's Permafrost Area area has 2,150,000 sq-kms, accounts for 22.4% of territory total area.In strategy to develop western regions, building up western traffic system is easily the inevitable link of Western Economic and social progress.Along with China is in the rise of Qinghai-Tibet Plateau Railway, highway construction, the anti-antifreeze problem of Layers In Cold-area Tunnels is subject to concern and the attention of engineering circles day by day.
The freeze injury form of tunnel in cold area is that tunnel lining is leaked, hung ice, tunnel lining cracking, crisp broken, peel off, tunnel bottom emits water, accumulated ice, freezing up.Above-mentioned freeze injury shows, water is the root producing tunnel in cold area freeze injury, and in order to prevent the generation of freeze injury, first tunnel in cold area must take efficient waterproof and drain measure.Cold-proof drain cavern is when the coldest month, temperature on average was lower than-25 DEG C, a kind of drainage measure of specification recommends in tunnel in cold area, but also there is drawback.Common cold-proof drain cavern thoroughly can not avoid the generation of freeze injury, in existing engineering, there is failed case, and the drain cavern passing through ever-frozen ground section also once occurred ice berg phenomenon.When drain cavern is by ever-frozen ground section, be only a diversion tunnel, without the need for sluicing function.Because ever-frozen ground section country rock is in subzero temperature, when crossing streamflow and being less, current very easily freeze, and cannot flow, and cause drainage system to lose efficacy.Drainage system, once lose efficacy, namely there will be the phenomenons such as aforesaid ice berg.Therefore the drain cavern passing through frozen soil section need take effective measures to guarantee that the current in drain cavern are unimpeded and not frozen, prevents drainage system to lose efficacy.
In order to prevent freezing of current in drain cavern, Normal practice be in the early stage between supporting and secondary lining or secondary lining inner surface lay insulation layer.The method can play the effect delaying current and freeze, but environment is subzero temperature residing for drain cavern, and drain cavern section is large and the water yield is relatively less, therefore relies on merely the trend that insulation layer does not stop current in drain cavern to freeze.In general, in drain cavern, temperature can be down to less than 0 DEG C in 2 ~ 3 years, and current in hole will be made to freeze, and therefore drainage system lost efficacy.
Summary of the invention
The shortcoming of prior art in view of the above, the technical problem to be solved in the present invention is to provide a kind of cold-proof drain cavern, for do not need sluicing function at drain cavern prerequisite under, can guarantee that the current in drain cavern are not frozen, unimpededly pass through tunnel in cold area ever-frozen ground section.
For achieving the above object and other relevant objects, the invention provides a kind of cold-proof drain cavern, below the frozen soil section being layed in tunnel in cold area, conduit pipe is equipped with in described cold-proof drain cavern, described conduit pipe is communicated with the gutter below non-frozen soil section, the cross-sectional area of described conduit pipe is much smaller than the cross-sectional area of described cold-proof drain cavern, and the outer wall of described conduit pipe and the inwall of described cold-proof drain cavern are all covered with insulation layer; The exit of described cold-proof drain cavern is closed, and only draws described conduit pipe; Described cold-proof drain cavern is communicated with described tunnel in cold area by manhole, and described manhole entrance is provided with well lid able to turn on or off.
Preferably, the paving location of described cold-proof drain cavern is lower than the position in described gutter.
Preferably, be connected by aqueduct between described conduit pipe with described gutter.
Preferably, the cross-sectional area of described conduit pipe is slightly larger than the cross-sectional area in described gutter.
Preferably, when the outlet of described cold-proof drain cavern is tilting delivery port, the exit of described cold-proof drain cavern is provided with occluding body.
Preferably, the outlet of described cold-proof drain cavern is buried type delivery port.
Preferably, Deeply buried ditch or heat preservation ditch centered by described gutter.
Preferably, described conduit pipe is precast concrete conduit pipe.
As mentioned above, cold-proof drain cavern provided by the invention, there is following beneficial effect: under the cold-proof drain cavern passing through ever-frozen ground section does not need the prerequisite of sluicing function, conduit pipe has been laid in cold-proof drain cavern, the underground water extracted from the drainage pipe in non-frozen soil section is focused in conduit pipe, because conduit pipe cross-sectional area is much smaller than cold-proof drain cavern cross-sectional area, add the insulation layer of outer ring, the heat of current itself not easily scatters and disappears, and effectively can prevent freezing of current in conduit pipe.The exit of cold-proof drain cavern is closed, and only draws conduit pipe, decreases cold air outside hole and enter in hole, delayed the rate of temperature fall in hole.Introduce warm air outside hole by manhole entrance, temperature in hole being raised, for leaving heat deposit dead season, preventing current in cold-proof drain cavern from freezing further.Therefore cold-proof drain cavern heat insulation effect provided by the invention is remarkable, and cost is low, implementation method is simple.
Accompanying drawing explanation
Fig. 1 is shown as the schematic diagram of cold-proof drain cavern of the present invention.
Fig. 2 is shown as the sectional drawing of the cold-proof drain cavern in Fig. 1 along A-A line.
Fig. 3 is shown as the sectional drawing of the cold-proof drain cavern in Fig. 1 along B-B line.
The schematic diagram when outlet that Fig. 4 is shown as cold-proof drain cavern of the present invention is buried type delivery port.
Fig. 5 is shown as the sectional drawing of the cold-proof drain cavern in Fig. 1 along C-C line.
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this manual can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by detailed description of the invention different in addition, and the every details in this manual also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 5.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, though only show the assembly relevant with the present invention in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Fig. 1 is shown as the schematic diagram of cold-proof drain cavern of the present invention, and tunnel in cold area 2 passes through frozen soil section and non-frozen soil section 7, and frozen soil section is divided into again ever-frozen ground section 6 and seasonal frozen ground section 8.Cold-proof drain cavern 1 gets rid of the major measure of underground water as tunnel, and likeness in form Pollen sterility, is positioned at immediately below tunnel in cold area 2, is routed to the intersection of ever-frozen ground section 6 and non-frozen soil section 7 from the hole of tunnel in cold area 2 always.When cold-proof drain cavern 1 is by ever-frozen ground section 6, only play diversion effect, without the need for sluicing function.Freeze to cause drainage system to lose efficacy for preventing the current in cold-proof drain cavern 1, conduit pipe 9 is equipped with in the cold-proof drain cavern 1 that the present invention proposes, this conduit pipe 9 is communicated with the gutter 3 be layed in below non-frozen soil section 7, the underground water extracted from non-frozen soil section 7 is focused in conduit pipe 9, instead of appoints current cross flow in hole as traditional cold-proof drain cavern.The cross-sectional area of conduit pipe 9, much smaller than the cross-sectional area of cold-proof drain cavern 1, greatly reduces scattering and disappearing of current heat by reducing the cross-section of river.Deeply buried ditch or heat preservation ditch centered by gutter 3 below non-frozen soil section 7.Center Deeply buried ditch is that ditch is embedded in tunnel in cold area 2 under the corresponding depth of frost penetration, and utilize the constant temperature of underground water to reach freeze thawing balance, guarantee current are not frozen.Heat preservation ditch adopts shallow embedding mode (being namely shallower than the maximum frozen depth in tunnel in cold area 2), adopts Insulation, to reach the uncongealable object of current in heat preservation ditch.The paving location of cold-proof drain cavern 1 is lower than the burial place in gutter 3.Be connected by aqueduct 5 between conduit pipe 9 with gutter 3, conduit pipe 9 cross-section of river is slightly larger than the cross-section of river in gutter 3.In embodiment, this conduit pipe 9 adopts precast concrete conduit pipe to shorten the engineering time.The conduit pipe of other materials can be adopted as the case may be in reality.
Fig. 2 is shown as the sectional drawing of the cold-proof drain cavern in Fig. 1 along A-A line, and namely cold-proof drain cavern is at the sectional drawing of common section.As shown in the figure, conduit pipe 9 outer wall is all coated with insulation layer 10, to stop current heat to pipeline external diffusion.The inwall of cold-proof drain cavern 1 is also equipped with insulation layer 10, plays the effect that the heat delayed in cold-proof drain cavern 1 spreads to ever-frozen ground section 6.
Corresponding Seal treatment measure should be taked in the exit of cold-proof drain cavern 1, to prevent cold air outside hole from entering, delays rate of temperature fall in hole.The outlet of cold-proof drain cavern 1 can adopt buried type heat-insulating water outlet or tilting delivery port.Fig. 3 is shown as the sectional drawing along B-B line in Fig. 1, namely has the sectional drawing of cold-proof drain cavern 1 in exit of tilting delivery port.The cold-proof drain cavern 1 with tilting delivery port is provided with occluding body 11 in nearly exit, only draws conduit pipe 9.Fig. 4 is shown as the schematic diagram of the cold-proof drain cavern of buried type delivery port, and buried type delivery port itself is closed.
Fig. 5 is shown as the sectional drawing of the cold-proof drain cavern in Fig. 1 along C-C line, and as shown in the figure, cold-proof drain cavern 1 is communicated with tunnel in cold area 2 by manhole 4, and the entrance 41 of manhole 4 is provided with well lid able to turn on or off.Before arriving dead season, the well lid of entrance 41 is opened, and is introduced by the warm air outside hole in hole, for leaving heat deposit dead season.When dead season arrives, well lid is closed, and prevents the cold air in tunnel in cold area 2 from entering cold-proof drain cavern 1.
In sum, the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (8)
1. a cold-proof drain cavern, below the frozen soil section being layed in tunnel in cold area, it is characterized in that: described frozen soil section is divided into ever-frozen ground section (6) and seasonal frozen ground section (8), described cold-proof drain cavern (1) is routed to the intersection of ever-frozen ground section (6) and non-frozen soil section (7) always from the hole of tunnel in cold area (2); Conduit pipe (9) is equipped with in described cold-proof drain cavern (1), described conduit pipe (9) is communicated with the gutter (3) of non-frozen soil section (7) below, the cross-sectional area of described conduit pipe (9) is much smaller than the cross-sectional area of described cold-proof drain cavern (1), and the outer wall of described conduit pipe (9) and the inwall of described cold-proof drain cavern (1) are all covered with insulation layer (10); The exit of described cold-proof drain cavern (1) is closed, and only draws described conduit pipe (9); When described cold-proof drain cavern (1) is by ever-frozen ground section (6), only play diversion effect, without the need for sluicing function; Described cold-proof drain cavern (1) is communicated with described tunnel in cold area (2) by manhole (4), and described manhole (4) entrance (41) is provided with well lid able to turn on or off.
2. cold-proof drain cavern according to claim 1, is characterized in that: the paving location of described cold-proof drain cavern (1) is lower than the position of described gutter (3).
3. cold-proof drain cavern according to claim 2, is characterized in that: be connected by aqueduct (5) between described conduit pipe (9) with described gutter (3).
4. cold-proof drain cavern according to claim 3, is characterized in that: the cross-sectional area of described conduit pipe (9) is slightly larger than the cross-sectional area of described gutter (3).
5. cold-proof drain cavern according to claim 1, is characterized in that: when the outlet of described cold-proof drain cavern (1) is tilting delivery port, and the exit of described cold-proof drain cavern (1) is provided with occluding body (11).
6. cold-proof drain cavern according to claim 1, is characterized in that: the outlet of described cold-proof drain cavern (1) is buried type delivery port.
7. cold-proof drain cavern according to claim 1, is characterized in that: Deeply buried ditch or heat preservation ditch centered by described gutter (3).
8. cold-proof drain cavern according to any one of claim 1 to 7, is characterized in that: described conduit pipe (9) is precast concrete conduit pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312367.2A CN103410563B (en) | 2013-07-23 | 2013-07-23 | Cold-proof drain cavern |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312367.2A CN103410563B (en) | 2013-07-23 | 2013-07-23 | Cold-proof drain cavern |
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| Publication Number | Publication Date |
|---|---|
| CN103410563A CN103410563A (en) | 2013-11-27 |
| CN103410563B true CN103410563B (en) | 2016-02-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310312367.2A Expired - Fee Related CN103410563B (en) | 2013-07-23 | 2013-07-23 | Cold-proof drain cavern |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939141B (en) * | 2014-03-24 | 2016-08-17 | 中铁工程设计咨询集团有限公司 | Tunnel drainage ditch winterization system |
| CN105626147A (en) * | 2016-04-07 | 2016-06-01 | 铁道第三勘察设计院集团有限公司 | Hidden type water outlet structure for insulation drainage ditches of tunnels |
| CN109268067B (en) * | 2018-09-21 | 2020-03-03 | 中铁第一勘察设计院集团有限公司 | Method for judging cold-proof drainage measures of tunnel in cold and severe cold areas |
| CN109214102B (en) * | 2018-09-21 | 2023-04-18 | 中铁第一勘察设计院集团有限公司 | Method for calculating cold-proof drainage tunnel length at tunnel portal in severe cold region |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU570721A1 (en) * | 1975-10-22 | 1977-08-30 | Новосибирский филиал Всесоюзного научно-исследовательского института транспортного строительства | Device for heating tunnel lining and surrounding rock mass |
| SU752052A1 (en) * | 1976-08-12 | 1980-07-30 | Новосибирский филиал Всесоюзного научно-исследовательского института транспортного строительства | Warmed water-discharging trough for tunnel |
| CN201310381Y (en) * | 2008-12-22 | 2009-09-16 | 长安大学 | Tunnel toroidal drainpipe with stripped insulating layer |
| CN102661171A (en) * | 2012-05-02 | 2012-09-12 | 中铁十一局集团第五工程有限公司 | Frost damage prevention drainage system for tunnel |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0861000A (en) * | 1994-06-15 | 1996-03-05 | Unitika Ltd | Sheet for discharging spring water in tunnel |
-
2013
- 2013-07-23 CN CN201310312367.2A patent/CN103410563B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU570721A1 (en) * | 1975-10-22 | 1977-08-30 | Новосибирский филиал Всесоюзного научно-исследовательского института транспортного строительства | Device for heating tunnel lining and surrounding rock mass |
| SU752052A1 (en) * | 1976-08-12 | 1980-07-30 | Новосибирский филиал Всесоюзного научно-исследовательского института транспортного строительства | Warmed water-discharging trough for tunnel |
| CN201310381Y (en) * | 2008-12-22 | 2009-09-16 | 长安大学 | Tunnel toroidal drainpipe with stripped insulating layer |
| CN102661171A (en) * | 2012-05-02 | 2012-09-12 | 中铁十一局集团第五工程有限公司 | Frost damage prevention drainage system for tunnel |
| 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 |
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| CN103410563A (en) | 2013-11-27 |
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