CN103410563A - Cold-proof draining tunnel - Google Patents
Cold-proof draining tunnel Download PDFInfo
- Publication number
- CN103410563A CN103410563A CN2013103123672A CN201310312367A CN103410563A CN 103410563 A CN103410563 A CN 103410563A CN 2013103123672 A CN2013103123672 A CN 2013103123672A CN 201310312367 A CN201310312367 A CN 201310312367A CN 103410563 A CN103410563 A CN 103410563A
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- Prior art keywords
- winter protection
- tunnel
- drain cavern
- cold
- protection drain
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- 239000002689 soil Substances 0.000 claims abstract description 15
- 238000004321 preservation Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 239000011178 precast concrete Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 17
- 238000007710 freezing Methods 0.000 abstract description 5
- 230000008014 freezing Effects 0.000 abstract description 5
- 238000007689 inspection Methods 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000009746 freeze damage Effects 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 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
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention provides a cold-proof draining tunnel which is paved below a frozen soil section of a cold region tunnel. A water diversion pipeline is paved inside the cold-proof draining tunnel, and is communicated with a discharge ditch below the non-frozen soil section; the sectional area of the water diversion pipeline is far less than that of the cold-proof draining tunnel; a heat preservation layer is coated on each of the outer wall of the water diversion pipeline and the inner wall of the cold-proof draining tunnel; the outlet of the cold-proof draining tunnel is an inclined water outlet or a buried water outlet, and is closed; only the water diversion pipeline is led out from the outlet; the cold-proof draining tunnel is communicated with the cold region tunnel through an inspection well; a well lid easy to open and close is arranged at the inlet of the inspection well. According to the invention, in the premise that the draining function is unnecessary for the cold-proof draining tunnel penetrating an ever-frost section, the water diversion pipeline and the heat preservation layers can effectively prevent water flow from freezing, and the closed outlet can slow down the cooling rate inside the tunnel; besides, the well lid at the inlet of the inspection well can be opened before a cold season to lead in warm air outside the tunnel, so as to reserve heat quantity for the cold season, and guarantee that water flow can penetrate through the ever-frost section of the cold region tunnel smoothly.
Description
Technical field
The present invention relates to a kind of tunnel drainage system, particularly relating to a kind of is the winter protection drain cavern that passes through the tunnel in cold area diversion of ever-frozen ground section.
Background technology
China's permafrost region distributes very extensive, and wherein ever-frozen ground mainly is distributed in northeast Xing'anling mountains and song-Nen plain the north and western high mountain and Qinghai-Tibet Platean, and sporadicly is distributed in some the high Mountain areas 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 easily is the inevitable link of Western Economic and social progress.Along with the rise of China in 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 ice is leaked, hangs in tunnel lining, tunnel lining cracking, crisp broken, peel off, tunnel bottom emits water, accumulated ice, freezing up.Above-mentioned freeze injury shows, water is the root that produces the tunnel in cold area freeze injury, and in order to prevent the generation of freeze injury, at first tunnel in cold area must take to prevent efficiently drainage measure.The winter protection drain cavern is when the coldest month, temperature on average was lower than-25 ℃, a kind of drainage measure of specification recommends in tunnel in cold area, but also exist drawback.Common winter protection drain cavern can not thoroughly be avoided the generation of freeze injury, in existing engineering, has failed case, and the ice berg phenomenon also once appearred in the drain cavern that passes through the ever-frozen ground section.When drain cavern passes through the ever-frozen ground section, be only a diversion tunnel, without the need for the sluicing function.Because ever-frozen ground section country rock is in subzero temperature, in the situation that it is less to cross streamflow, current very easily freeze, and can't flow, and cause drainage system to lose efficacy.Drainage system is in case inefficacy namely there will be the phenomenons such as aforesaid ice berg.Therefore the drain cavern that passes through the frozen soil section need take effective measures to guarantee that the current in drain cavern are unimpeded and not frozen, prevents that drainage system lost efficacy.
In order to prevent freezing of current in drain cavern, conventional way is between supporting in the early stage and secondary lining or the secondary lining inner surface is laid insulation layer.The method can play the effect that current freeze that delays, but because drain cavern environment of living in is subzero temperature, and the drain cavern section is large and the water yield is relatively less, therefore the simple trend that relies on insulation layer not to stop the interior current of drain cavern to freeze.In general, in drain cavern, temperature can be down to below 0 ℃ in 2～3 years, and current in hole are freezed, 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 winter protection drain cavern, under prerequisite for the function that do not need to sluice at drain cavern, can guarantee that the current in drain cavern are not frozen, unimpededly pass through tunnel in cold area ever-frozen ground section.
Reach for achieving the above object other relevant purposes, the invention provides a kind of winter protection drain cavern, be layed in the frozen soil section below of tunnel in cold area, in described winter protection drain cavern, be equipped with conduit pipe, described conduit pipe is communicated with the gutter of non-frozen soil section below, the cross-sectional area of described conduit pipe is much smaller than the cross-sectional area of described winter protection drain cavern, and the inwall of the outer wall of described conduit pipe and described winter protection drain cavern all is covered with insulation layer; The exit sealing of described winter protection drain cavern, only draw described conduit pipe; Described winter protection drain cavern is communicated with described tunnel in cold area by manhole, and described manhole entrance is provided with able to turn on or off well lid.
Preferably, the paving location of described winter protection drain cavern is lower than the position in described gutter.
Preferably, between described conduit pipe and described gutter, be connected by aqueduct.
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 winter protection drain cavern was the tilting delivery port, the exit of described winter protection drain cavern was provided with occluding body.
Preferably, the outlet of described winter protection drain cavern is the buried type delivery port.
Preferably, Deeply buried ditch or heat preservation ditch centered by described gutter.
Preferably, described conduit pipe is the precast concrete conduit pipe.
As mentioned above, winter protection drain cavern provided by the invention, has following beneficial effect: under the winter protection drain cavern that passes through the ever-frozen ground section does not need to sluice the prerequisite of function, in the winter protection drain cavern, laid conduit pipe, the underground water extracted will the drainage pipe in non-frozen soil section focuses in conduit pipe, due to the conduit pipe cross-sectional area much smaller than winter protection drain cavern cross-sectional area, add the insulation layer of outer ring, the heat of current itself is difficult for scattering and disappearing, and can effectively prevent freezing of the interior current of conduit pipe.The exit sealing of winter protection drain cavern, only draw conduit pipe, reduced cold air outside hole and entered in hole, delayed the rate of temperature fall in the hole.By the manhole entrance, introduce warm air outside hole, temperature in hole is raise, for staying the heat deposit dead season, prevent that further in the winter protection drain cavern, current freeze.Therefore winter protection drain cavern heat insulation effect provided by the invention is remarkable, and cost is low, implementation method is simple.
The accompanying drawing explanation
Fig. 1 is shown as the schematic diagram of winter protection drain cavern of the present invention.
Fig. 2 is shown as winter protection drain cavern in Fig. 1 along the sectional drawing of A-A line.
Fig. 3 is shown as winter protection drain cavern in Fig. 1 along the sectional drawing of B-B line.
The schematic diagram when outlet that Fig. 4 is shown as winter protection drain cavern of the present invention is the buried type delivery port.
Fig. 5 is shown as winter protection drain cavern in Fig. 1 along the sectional drawing of C-C line.
The specific embodiment
Below by specific instantiation explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this manual.The present invention can also be implemented or be applied by the other different specific embodiment, and the every details in this manual also can be based on different viewpoints and application, carries out various modifications 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 in graphic, only show with the present invention in relevant assembly but not component count, shape and size drafting while implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Fig. 1 is shown as the schematic diagram of winter protection drain cavern of the present invention, and tunnel in cold area 2 passes through frozen soil section and non-frozen soil section 7, and the frozen soil section is divided into again ever-frozen ground section 6 and seasonal frozen ground section 8.Winter protection drain cavern 1 is got rid of the major measure of underground water as tunnel, be similar to little tunnel, be positioned at tunnel in cold area 2 under, from the hole of tunnel in cold area 2, be routed to the intersection of ever-frozen ground section 6 and non-frozen soil section 7 always.When winter protection drain cavern 1 passes through ever-frozen ground section 6, only play the diversion effect, without the need for the sluicing function.For preventing that the current in winter protection drain cavern 1 from freezing to cause drainage system to lose efficacy, in the winter protection drain cavern 1 that the present invention proposes, be equipped with conduit pipe 9, this conduit pipe 9 is communicated with the gutter 3 that is layed in non-frozen soil section 7 belows, to focus in conduit pipe 9 from the underground water extracted non-frozen soil section 7, rather than appoint current cross flow in hole as traditional winter protection drain cavern.The cross-sectional area of conduit pipe 9, much smaller than the cross-sectional area of winter protection drain cavern 1, has greatly reduced scattering and disappearing of current heats by reducing the cross-section of river.Deeply buried ditch or heat preservation ditch centered by the gutter 3 of non-frozen soil section 7 belows.The center Deeply buried ditch is that ditch is embedded under the interior corresponding depth of frost penetration of tunnel in cold area 2, utilizes the constant temperature of underground water to reach the freeze thawing balance, guarantees that current are not frozen.Heat preservation ditch adopts shallow embedding mode (namely being shallower than the maximum frozen depth in tunnel in cold area 2), in heat preservation ditch, adopts Insulation, to reach the uncongealable purpose of current.The paving location of winter protection drain cavern 1 is lower than the burial place in gutter 3.Between conduit pipe 9 and gutter 3, be connected by aqueduct 5, conduit pipe 9 cross-sections of river are slightly larger than the cross-section of river in gutter 3.In embodiment, this conduit pipe 9 adopts the precast concrete conduit pipe to shorten the engineering time.In reality, can adopt as the case may be the conduit pipe of other materials.
Fig. 2 is shown as winter protection drain cavern in Fig. 1 along the sectional drawing of A-A line, and namely the winter protection drain cavern is at the sectional drawing of common section.As shown in the figure, conduit pipe 9 outer walls all are coated with insulation layer 10, to stop the current heat to the pipeline external diffusion.The inwall of winter protection drain cavern 1 also is equipped with insulation layer 10, plays the effect of the interior heat of winter protection drain cavern 1 to 6 diffusions of ever-frozen ground section that delay.
Treatment measures should be taked to seal accordingly in the exit of winter protection drain cavern 1, to prevent that outside hole, cold air enters, delay rate of temperature fall in hole.The outlet of winter protection drain cavern 1 can be adopted buried type heat-insulating water outlet or tilting delivery port.Fig. 3 is shown as in Fig. 1 along the sectional drawing of B-B line, namely has the sectional drawing of the winter protection drain cavern 1 of tilting delivery port in exit.Winter protection 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 winter protection drain cavern of buried type delivery port, and the buried type delivery port itself is sealing.
Fig. 5 is shown as winter protection drain cavern in Fig. 1 along the sectional drawing of C-C line, and as shown in the figure, winter protection drain cavern 1 is communicated with tunnel in cold area 2 by manhole 4, and the entrance 41 of manhole 4 is provided with able to turn on or off well lid.Before arriving dead season, the well lid of entrance 41 is opened, and the warm air outside hole is introduced in hole, for staying the heat deposit dead season.When arrived dead season, well lid was closed, and prevented that the cold air in tunnel in cold area 2 from entering winter protection drain cavern 1.
In sum, the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not be used to limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and know that usually the knowledgeable, not breaking away from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (8)
1. winter protection drain cavern, be layed in the frozen soil section below of tunnel in cold area, it is characterized in that: in described winter protection drain cavern (1), be equipped with conduit pipe (9), 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 winter protection drain cavern (1), and the inwall of the outer wall of described conduit pipe (9) and described winter protection drain cavern (1) all is covered with insulation layer (10); The exit sealing of described winter protection drain cavern (1), only draw described conduit pipe (9); Described winter protection drain cavern (1) is communicated with described tunnel in cold area (2) by manhole (4), and described manhole (4) entrance (41) is provided with able to turn on or off well lid.
2. winter protection drain cavern according to claim 1, it is characterized in that: the paving location of described winter protection drain cavern (1) is lower than the position of described gutter (3).
3. winter protection drain cavern according to claim 2 is characterized in that: by aqueduct (5), be connected between described conduit pipe (9) and described gutter (3).
4. winter protection drain cavern according to claim 3, it 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. winter protection drain cavern according to claim 1, it is characterized in that: when the outlet of described winter protection drain cavern (1) was the tilting delivery port, the exit of described winter protection drain cavern (1) was provided with occluding body (11).
6. winter protection drain cavern according to claim 1, it is characterized in that: the outlet of described winter protection drain cavern (1) is the buried type delivery port.
7. winter protection drain cavern according to claim 1, is characterized in that: Deeply buried ditch or heat preservation ditch centered by described gutter (3).
8. according to the described winter protection drain cavern of any one in claim 1 to 7, it is characterized in that: described conduit pipe (9) is the 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310312367.2A CN103410563B (en) | 2013-07-23 | 2013-07-23 | Cold-proof drain cavern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103410563A true CN103410563A (en) | 2013-11-27 |
| CN103410563B CN103410563B (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310312367.2A Expired - Fee Related CN103410563B (en) | 2013-07-23 | 2013-07-23 | Cold-proof drain cavern |
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| Country | Link |
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| CN (1) | CN103410563B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939141A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Anti-freezing system of tunnel drainage ditch |
| 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 |
| CN109214102A (en) * | 2018-09-21 | 2019-01-15 | 中铁第勘察设计院集团有限公司 | Calculation method for the cold-proof drain cavern length in tunnel in cold regions hole |
| CN109268067A (en) * | 2018-09-21 | 2019-01-25 | 中铁第勘察设计院集团有限公司 | For cold and the cold-proof drainage measure of tunnel in cold regions determination method |
Citations (6)
| 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 |
| JPH0861000A (en) * | 1994-06-15 | 1996-03-05 | Unitika Ltd | Sheet for discharging spring water in 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 |
-
2013
- 2013-07-23 CN CN201310312367.2A patent/CN103410563B/en not_active Expired - Fee Related
Patent Citations (6)
| 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 |
| JPH0861000A (en) * | 1994-06-15 | 1996-03-05 | Unitika Ltd | Sheet for discharging spring water in 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 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939141A (en) * | 2014-03-24 | 2014-07-23 | 中铁工程设计咨询集团有限公司 | Anti-freezing system of tunnel drainage ditch |
| 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 |
| CN109214102A (en) * | 2018-09-21 | 2019-01-15 | 中铁第勘察设计院集团有限公司 | Calculation method for the cold-proof drain cavern length in tunnel in cold regions hole |
| CN109268067A (en) * | 2018-09-21 | 2019-01-25 | 中铁第勘察设计院集团有限公司 | For cold and the cold-proof drainage measure of tunnel in cold regions determination method |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103410563B (en) | 2016-02-17 |
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Granted publication date: 20160217 |