CN210829391U - Freeze-resistant type water-proof drainage plate suitable for cold region tunnel - Google Patents
Freeze-resistant type water-proof drainage plate suitable for cold region tunnel Download PDFInfo
- Publication number
- CN210829391U CN210829391U CN201920584072.3U CN201920584072U CN210829391U CN 210829391 U CN210829391 U CN 210829391U CN 201920584072 U CN201920584072 U CN 201920584072U CN 210829391 U CN210829391 U CN 210829391U
- Authority
- CN
- China
- Prior art keywords
- layer
- waterproof
- dissipation
- tunnel
- heat insulation
- 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.)
- Expired - Fee Related
Links
- 239000002245 particle Substances 0.000 claims abstract description 32
- 239000000463 material Substances 0.000 claims abstract description 28
- 238000009413 insulation Methods 0.000 claims abstract description 19
- 239000013013 elastic material Substances 0.000 claims abstract description 8
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 6
- 230000008014 freezing Effects 0.000 claims description 5
- 239000003673 groundwater Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 21
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000004078 waterproofing Methods 0.000 abstract description 4
- 238000004321 preservation Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract 1
- 230000008961 swelling Effects 0.000 abstract 1
- 230000006378 damage Effects 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009746 freeze damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The utility model discloses a freeze-proof type drainage plate suitable for cold region tunnels, which comprises a heat insulation layer, a waterproof coiled material layer arranged on the upper surface of the heat insulation layer and a dissipation layer positioned on the upper surface of the waterproof coiled material layer; the dissipation layer comprises a plurality of dissipation particle pieces distributed on the upper surface of the waterproof roll material layer; gaps are reserved between adjacent dissipative particle parts, and the dissipative particle parts are made of elastic materials; the heat insulation layer plays a role in heat preservation and heat insulation, so that the influence of the negative temperature environment in the tunnel on the underground water behind the lining is isolated; the waterproof coiled material plays a role in waterproofing, so that underground water is prevented from permeating into the secondary lining of the tunnel and even being purified through the waterproof coiled material; through dissipation granule spare on dissipation layer and the effectual annular drainage ability that promotes in clearance to reduce the additional pressure of frozen swelling power to two linings by a wide margin, simplify the construction process, improve construction speed, promote tunnel structure's durability.
Description
Technical Field
The utility model relates to a tunnel construction technical field, concretely relates to drain bar is prevented to resistant type that freezes suitable for cold district's tunnel.
Background
The cold area in China is widely distributed and occupies about 70% of the area of the land, a plurality of tunnel projects are built in order to meet the requirements of economic and social development, and the number of built and planned tunnels is quite large. At present, from the perspective of established projects, the problem of freezing injury frequently becomes a main problem of tunnels in cold regions, and the using function and durability of the tunnels are seriously affected. The main manifestation of freeze injury can be divided into two categories, namely ice injury and frost heaving, and underground water and negative temperature are the root causes of the occurrence of the freeze injury of the tunnel. The freezing damage occurrence factors of specific engineering are many, and unsmooth drainage or failure of a waterproof and drainage system caused by problems of construction quality or design and the like is one of main reasons.
The drainage plate for the tunnel in the cold region constructed by adopting the new Austrian's law principle is basically the same as the drainage plate for the common tunnel, and the positioning is only the waterproof function. However, in practical engineering, the factors such as primary support flatness, anchor rod outcrop, paving technical details and the like often cause local failure of the drainage preventing plate, so that underground water leaks into the tunnel, and in winter in cold regions, the problem of icing is caused, and ice damage is caused. On the other hand, the drainage blind pipe, the blind ditch and the like are severely influenced by negative temperature outside the tunnel and are easy to freeze near the tunnel opening section, so that the drainage of the whole tunnel is unsmooth, the original ordered and non-pressure drainage is changed into disordered and pressure drainage, and the negative temperature environment in the tunnel is supplemented, namely, the accumulated water behind the tunnel is easy to freeze and swell, so that the frost heaving force acting on the tunnel structure is generated, the structure is broken or even brittle failure, the safety accident is caused, and the normal use is influenced.
At present, most of traffic tunnels in China adopt composite lining, namely a form of primary support, a waterproof plate and secondary lining. The preliminary bracing is the reasonable combination of spray concrete, the stock, the steelframe, reinforcing bar net piece etc. because the country rock wall face roughness of drilling and blasting method excavation is not good, often there is the overbreak or the owed excavation of different degree, the roughness of the concrete of spraying on the country rock face also is difficult to be as good as one's intention, in addition the existence of stock outcrop etc. and the existence of waterproof board welding seam and construction joint etc., and it belongs to hidden engineering, it is great that the quality of laying is influenced by technical staff's level and state, thereby it is not fresh to lead to the problem of waterproof board inefficacy slightly reducing, and current waterproof board does not possess the drainage function. For cold region tunnel engineering, once the drainage preventing plate fails, the back underground water can gradually leak into the tunnel through weak links such as construction joints and deformation joints of secondary lining, and the underground water of the cold region tunnel is frozen to expand so that a non-pressure drainage state is changed into a pressure state, and the underground water is easier to leak from the weak lining.
For places with abundant underground water, the annular blind pipes are insufficient in drainage capacity, so that the secondary lining is subjected to pressure bearing and even damaged, or the secondary lining is high in laying density, poor in economy and complex in process. And once the tunnel with abundant underground water is frozen, the degree of the tunnel is often more serious, and the frost heaving force borne by the lining structure is often larger.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a stable in structure is reliable, reduce the resistant type of freezing of secondary lining's frost heaving force and prevent drain bar suitable for cold district's tunnel.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the anti-freezing type anti-drainage plate suitable for the cold region tunnel comprises a heat insulation layer, a waterproof coiled material layer and a dissipation layer, wherein the waterproof coiled material layer is arranged on the upper surface of the heat insulation layer, and the dissipation layer is positioned on the upper surface of the waterproof coiled material layer;
the dissipation layer comprises a plurality of dissipation particle pieces distributed on the upper surface of the waterproof roll material layer; gaps are reserved between adjacent dissipative particle parts, and the dissipative particle parts are made of elastic materials.
Further, the dissipation particle spare evenly distributed is on waterproof roll material layer, and is adjacent the size variation of dissipation particle spare.
Further, the elastically compressible volume of the dissipative particulate element is larger than the expansion volume of the frozen groundwater.
Furthermore, the adjacent water-proof and drainage plates are connected through welding.
Further, the waterproof roll material layer is adhered to the upper surface of the heat insulation layer.
Further, the heat insulation layer is made of rubber materials or foam materials.
Furthermore, the waterproof roll material layer is made of EVA or PVC materials.
Furthermore, the elastic material is made of rubber, polyurethane or TPE.
The utility model discloses following beneficial effect has: the utility model provides a freezing-resistant type water-proof drain board which is suitable for the tunnel in the cold region, which plays the role of heat preservation and heat insulation through the heat-insulating layer, thereby isolating the influence of the negative temperature environment in the tunnel on the groundwater behind the lining; the waterproof coiled material plays a role in waterproofing, so that underground water is prevented from permeating into the secondary lining of the tunnel and even being purified through the waterproof coiled material;
the heat insulation layer, the waterproof coil material layer and the dissipation layer are sequentially connected into an integrated structure, the circumferential drainage capacity is effectively improved through the dissipation particle piece gaps of the dissipation layer, and a circumferential drainage blind pipe can be replaced to a certain extent, so that the construction process is simplified, and the construction speed is increased; and the elastic die of the dissipation particle part is small and easy to compress, so that the volume expansion of the ice formation body mainly takes the compression dissipation particle part as a main part, the dissipation particle part can offset the frost heaving deformation of underground water through the deformation of the dissipation particle part, the frost heaving force acting on the secondary lining is obviously reduced, the damage of the two lining structure under the action of the frost heaving force is prevented, the additional pressure of the frost heaving force on the two lining structure can be greatly reduced, and the durability of the tunnel structure is improved.
Drawings
FIG. 1 is a schematic structural view of a middle waterproof and drainage plate of the present invention;
FIG. 2 is a schematic view of the installation of the middle waterproof and drainage plate of the present invention;
the reference numerals shown in fig. 1 to 2 are respectively expressed as: 1-thermal insulation layer, 2-waterproof coil layer, 3-dissipation layer, 31-dissipation particle piece, 20-primary support, 40-secondary lining, 60-waterproof drainage plate and 80-surrounding rock.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1 to 2, the freeze-resistant type water drainage plate suitable for the cold region tunnel comprises a heat insulation layer 1, a waterproof roll material layer 2 arranged on the upper surface of the heat insulation layer 1, and a dissipation layer 3 positioned on the upper surface of the waterproof roll material layer 2. Dissipation particle spare on the dissipation layer is fixed in waterproofing membrane layer surface with certain size gradation and spatial distribution, and insulating layer 1 pastes on waterproofing membrane layer 2 internal surface. Two adjacent water drainage plates are connected through double-seam welding, and after the connection is finished, the tightness inspection is carried out, so that the sealing performance is ensured.
The heat insulation layer 1 plays a role in heat preservation and heat insulation, so that the influence of the negative temperature environment in the tunnel on the underground water behind the lining is isolated; the heat insulating layer 1 may be made of a material having low thermal conductivity such as rubber or foam, or may be formed by adding a heat insulating material to the waterproof roll layer 2. The waterproof roll layer 2 plays a waterproof role, and prevents underground water from permeating into the tunnel secondary lining and even the air through the waterproof roll layer 2; the waterproof roll is mainly made of EVA, PVC and macromolecule composite waterproof rolls. The dissipation layer is used for solving the problem of frost heaving force of the tunnel in the cold region, and the frost heaving force acting on the secondary lining is remarkably reduced through the absorption frost heaving deformation of the dissipation layer.
The dissipation layer 3 comprises a plurality of dissipation particle pieces 31 distributed on the upper surface of the waterproof roll layer 2; gaps are formed between the adjacent dissipative particle pieces 31, and the dissipative particle pieces 31 are made of elastic materials.
This dissipation particle spare 31 can be two kinds of different size, three kinds of different size or multiple different size, and a plurality of dissipation particle spare 31 evenly distributed on waterproof roll material layer 2, select the dissipation particle spare 31 of appropriate quantity and size according to the operating condition demand. Through the dissipation particle pieces 31 and the spaces among the dissipation particle pieces, the functions of draining water and buffering frost heaving are mainly achieved, and when underground water is not frozen, water can be drained through gaps of the dissipation particle pieces 31 instead of circumferential and longitudinal drainage blind pipes; when the groundwater freezes, because the elastic modulus of the dissipative particle component 31 is small and the dissipative particle component is easy to compress compared with the surrounding rock and the two-lining structure, the volume expansion of the icing body mainly comprises the compression of the dissipative particle component 31, and the additional pressure of the frost heaving force on the two-lining structure can be greatly reduced. The particulate dissipation member 31 is made of an elastic material, preferably an elastic material such as rubber, polyurethane, TPE, etc., which has good freeze-thaw resistance, good elasticity, and a small elastic modulus. The shape of the dissipative particle member 31 may be in the form of a sphere, a hemisphere, a cube, a cuboid, a polyhedron, etc. The specific size and spacing of the dissipative particulate elements 31 is determined by the amount of water to be removed at the site, and if the amount of water is large, the size of the dissipative particulate elements should be increased and their spacing increased to increase their spacing and thus their drainage capacity and vice versa, but to ensure that the resiliently compressible volume of the dissipative particulate elements is greater than the expansion volume of the groundwater when frozen.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (8)
1. The freezing-resistant type water-proof and drainage plate suitable for the cold region tunnel is characterized by comprising a heat insulation layer (1), a waterproof coiled material layer (2) arranged on the upper surface of the heat insulation layer (1) and a dissipation layer (3) positioned on the upper surface of the waterproof coiled material layer (2);
the dissipation layer (3) comprises a plurality of dissipation particle pieces (31) distributed on the upper surface of the waterproof roll material layer (2); gaps are reserved between the adjacent dissipative particle pieces (31), and the dissipative particle pieces (31) are made of elastic materials.
2. The freeze-tolerant drainage plate suitable for cold-region tunnels according to claim 1, wherein the dissipative particulate pieces (31) are uniformly distributed on the waterproof roll layer (2), and the sizes of the adjacent dissipative particulate pieces (31) are different.
3. The freeze-tolerant type drain prevention panel for tunnels in cold regions according to claim 1, wherein the dissipative particle piece (31) has an elastically compressible volume greater than an expanded volume in which groundwater freezes.
4. The frost-resistant type drain-proof plate suitable for the cold region tunnel according to claim 2, wherein the adjacent drain-proof plates are connected by welding.
5. The freeze-resistant type waterproof and drainage plate suitable for the cold region tunnel according to any one of claims 1 to 4, wherein the waterproof roll material layer (2) is adhered to the upper surface of the heat insulation layer (1).
6. The frost-resistant type drain board suitable for cold region tunnels according to claim 1, wherein the thermal insulation layer (1) is made of rubber or foam.
7. The frost-resistant type drain board suitable for cold region tunnels according to claim 5, wherein the waterproof roll material layer (2) is made of waterproof material, and the waterproof material is EVA or PVC.
8. The frost-resistant drainage plate suitable for cold tunnels as claimed in claim 5, wherein the elastic material is made of rubber, polyurethane or TPE.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584072.3U CN210829391U (en) | 2019-04-25 | 2019-04-25 | Freeze-resistant type water-proof drainage plate suitable for cold region tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584072.3U CN210829391U (en) | 2019-04-25 | 2019-04-25 | Freeze-resistant type water-proof drainage plate suitable for cold region tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829391U true CN210829391U (en) | 2020-06-23 |
Family
ID=71269783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920584072.3U Expired - Fee Related CN210829391U (en) | 2019-04-25 | 2019-04-25 | Freeze-resistant type water-proof drainage plate suitable for cold region tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829391U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431620A (en) * | 2020-10-29 | 2021-03-02 | 西南交通大学 | Combined waterproof structure for reducing frost heaving force of tunnel and construction method thereof |
| CN115478703A (en) * | 2022-10-17 | 2022-12-16 | 四川大学 | Method for preventing frost heaving cracking of concrete hole |
-
2019
- 2019-04-25 CN CN201920584072.3U patent/CN210829391U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112431620A (en) * | 2020-10-29 | 2021-03-02 | 西南交通大学 | Combined waterproof structure for reducing frost heaving force of tunnel and construction method thereof |
| CN115478703A (en) * | 2022-10-17 | 2022-12-16 | 四川大学 | Method for preventing frost heaving cracking of concrete hole |
| CN115478703B (en) * | 2022-10-17 | 2024-05-10 | 四川大学 | Method for preventing frost heaving and cracking of concrete holes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110043296B (en) | Freezing-resistant drainage plate suitable for cold region tunnel and construction method thereof | |
| CN210829391U (en) | Freeze-resistant type water-proof drainage plate suitable for cold region tunnel | |
| CN108952806B (en) | Tunnel drainage anti-freezing integrated system in severe cold region | |
| CN110748358A (en) | Cold region tunnel entrance to a cave two-sided heat preservation system | |
| CN111622784A (en) | Heat-insulation anti-freezing structure for high-speed railway tunnel in severe cold area | |
| CN113250747A (en) | Cold district highway tunnel intelligence initiative drainage system that keeps warm | |
| CN215718947U (en) | Intelligent active heat preservation and drainage system for highway tunnel | |
| CN106050274A (en) | Anti-frost heaving structure of hard rock tunnel in cold region and construction method of anti-frost heaving structure | |
| CN206337540U (en) | A kind of water conservancy and hydropower gate upstream face anti-freezing device | |
| CN109853623A (en) | Spliced waterproof piping lane and its foundation structure | |
| CN108166999B (en) | Waterproof, antifreezing and fireproof structure of tunnel in cold region | |
| CN213743453U (en) | Combined waterproof structure for reducing frost heaving force of tunnel | |
| CN115467291A (en) | Go up storehouse basin seepage prevention structure | |
| CN204729107U (en) | A kind of detachable deformation joint structure for tunnel in cold area | |
| CN210288156U (en) | Rainwater and sewage diversion tunnel | |
| CN207761710U (en) | One kind being used for seasonal frost region tunnel portal section center pipe trench structure | |
| CN208268556U (en) | Construct the composite pipe in sponge city | |
| CN208900107U (en) | A kind of north anti-freeze expansion tunnel structure | |
| CN216815618U (en) | Thing networking water gauge with rust-resistant function that loses | |
| CN208633837U (en) | A kind of duct pieces of shield tunnel of the fire-proof plate suspender member equipped with shape memory effect | |
| CN215801361U (en) | Water surface floating type micro-positive pressure inflatable film anti-freezing heat insulation shading device | |
| CN219317000U (en) | Prevent cold district tunnel construction seam infiltration freeze injury's waterproof and drainage structure | |
| CN214328965U (en) | Novel water supply and drainage pipeline system for earthquake area | |
| CN219011814U (en) | Freezer terrace frost heaving prevention structure | |
| CN218952257U (en) | Waterproof sinking-resistant deformation-resistant underground pipe gallery expansion joint structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 |