CN104632278A - Cover plate for tunnel ditch and cover plate component including the same - Google Patents
Cover plate for tunnel ditch and cover plate component including the same Download PDFInfo
- Publication number
- CN104632278A CN104632278A CN201510058881.7A CN201510058881A CN104632278A CN 104632278 A CN104632278 A CN 104632278A CN 201510058881 A CN201510058881 A CN 201510058881A CN 104632278 A CN104632278 A CN 104632278A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- main body
- tunnel
- tunnel ditch
- plate main
- 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.)
- Pending
Links
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 238000004321 preservation Methods 0.000 claims description 27
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000009434 installation Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000759199 Eleocharis acicularis Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- 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)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sewage (AREA)
Abstract
The invention relates to a cover plate for a tunnel ditch and a cover plate component including the same. The cover plate for the tunnel ditch comprises a cover plate body used for covering the opening of the tunnel ditch, the cover plate body comprises elastomeric polymer layers and a metal layer arranged between the elastomeric polymer layers. The cover plate can improve the leakproofness of the tunnel ditch and prevent impurities from being accumulated in the tunnel ditch.
Description
Technical field
The present invention relates to constructing tunnel or maintenance and repair technology field, especially relate to a kind of cover plate for tunnel ditch and comprise its cover plate assembly.
Background technology
As the important component part of tunnel drainage system, in tunnel, bilateral ditch and Central drain being generally set, for ensureing that the proper drainage function in ditch uses, cover plate need being set on tunnel ditch.
In prior art, often adopt concrete cover, in use, very easily there is breakage in concrete cover, poor durability.In addition the end face of concrete cover is coarse, and under adjacent cover plate mated condition, have very large gap, sealing is poor, makes to comprise the impurity such as dust, gravel or coal ash and easily accumulates in tunnel ditch, and blocking ditch, affects proper drainage.In addition, long-term ponding corrodes and easily causes ditch damaged, and then makes Tunnel Base structure occur disease, increases maintenance workload, affects the safe operation of circuit.
Therefore, need to design a kind of cover plate, with the defect overcoming the existing cover plate of tunnel ditch and the problem caused thus.
Summary of the invention
For above-mentioned technical problem existing in prior art, the present invention proposes a kind of cover plate for tunnel ditch and comprise its cover plate assembly.This cover plate well can coordinate with tunnel ditch, and the cover plate assembly be grouped together can play good sealing process, can prevent impurity from entering into tunnel ditch.
According to an aspect of the present invention, proposing a kind of cover plate for tunnel ditch, comprising the cover plate main body for covering the opening part at tunnel ditch, cover plate main body comprises elastomeric polymer layer and is arranged on the metal level between elastomeric polymer layer.
Preferably, elastomeric polymer layer is the rubber layer of fire-resistant, or/and metal level is steel plate layer.
In one embodiment, the bottom surface of cover plate main body is arranged for cover plate being limited in the locating part on tunnel ditch, and locating part can coordinate with the sidewall of tunnel ditch.
In one embodiment, locating part is provided with the tooth-like part coordinated with the sidewall of tunnel ditch, and/or on the bottom surface of cover plate main body, arrange four locating parts of rectangular distribution.
In one embodiment, the bottom surface of cover plate main body arranges the heat preservation member of boxlike, heat preservation member can extend in tunnel ditch, and on the liquid level of the bottom surface of heat preservation member in tunnel ditch, the both sides of heat preservation member coordinate with the sidewall of tunnel ditch.
In one embodiment, heat preservation member is embodied as hollow balloon structure, or heat preservation member comprises box body and is arranged on the heat insulating material in box body.
In one embodiment, the end face of cover plate main body arranges slag trap, slag trap is arranged on the side near center, tunnel, and arranges along the bearing of trend in tunnel.Preferably, slag trap is vertical with cover plate main body is arranged.
According to a further aspect in the invention, provide a kind of cover plate assembly, it comprises cover plate, and the two ends of cover plate main body are provided with connecting portion, and connection part structure is to make contact between adjacent cover plate connect.
In one embodiment, connecting portion is set to stage portion, and the stage portion of one end of cover plate main body is configured to gap type, and the stage portion of the other end of cover plate main body be configured to can with the lower gap type of the stage portion mating shapes of upper gap type.
In one embodiment, connecting portion is set to stage portion, the stage portion at the two ends of a cover plate main body in adjacent cover plate main body is configured to gap type, and the stage portion at the two ends of another cover plate main body in adjacent cover plate main body is configured to lower gap type, wherein, the stage portion of upper gap type can match with the stage portion of lower gap type.
Compared with prior art, the invention has the advantages that, this cover plate mechanical performance is strong, and durability is strong.Meanwhile, use this cover plate to add the closure of tunnel ditch, avoid accumulation of impurities in tunnel ditch, thus avoid tunnel ditch blocking.Further, this cover plate is convenient to installation and removal, contributes to improving construction speed, is convenient to maintenance.In addition, by the cover board arranging heat preservation member, effectively can keep the temperature in ditch, avoiding in ditch and occur freeze injury.Finally, this cover plate has fire-retardant, the gear tiny fragments of stone, coal, etc., insulation, the function such as anti-skidding.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.In the drawings:
Fig. 1 shows the front view of the cover plate for tunnel ditch according to an embodiment of the invention.
Fig. 2 shows the A-A sectional view from Fig. 1.
Fig. 3 shows the B-B sectional view from Fig. 1.
Fig. 4 shows the installation sectional drawing of the cover plate for tunnel ditch from Fig. 1.
Fig. 5 shows the sectional view of the cover plate for tunnel ditch according to another embodiment of the invention.
Fig. 6 shows the installation sectional drawing of the cover plate in tunnel ditch from Fig. 5.
Fig. 7 shows the sectional view of cover plate assembly.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 1 shows the structure chart according to the cover plate 100 for tunnel ditch of the present invention.As shown in Figure 1, cover plate 100 comprises cover plate main body 50.Cover plate main body 50 has elastomeric polymer layer 1 and metal level 2, can be illustrated by Fig. 2.Wherein, metal level 2 is arranged between elastomeric polymer layer 1.In use, as shown in Figure 4, cover plate 100 covers on tunnel ditch.Due to the surfacing of cover plate 100, cover after on tunnel ditch at cover plate 100, cover plate 100 all compares tightly with the cooperation between tunnel ditch or the cooperation between cover plate 100, and makes the closure of tunnel ditch good.Thus, the cover plate 100 of this structure is conducive to the closure increasing tunnel ditch, avoids it to block.Further, use cover plate 100 anti-destructive of this structure strong, good endurance.Meanwhile, cover plate 100 installation and removal of this structure are convenient, are conducive to improving installation progress.
In a preferred embodiment, elastomeric polymer layer 1 is rubber layer.Preferred further, elastomeric polymer layer 1 is set to fire-resistant rubber layer.By this set, avoid rubber type of material and meet the inflammable problem of fire, ensure that cover plate 100, or even the safety in tunnel.Meanwhile, preferably, metal level 2 is steel plate layer.Further preferably, metal level 2 is configured to zinc-plated steel plate.By this arrangement enhancing the rigidity of cover plate 100, ensure that its mechanical property.Meanwhile, suitably add the weight of cover plate 100, make it while being convenient to install, add the stability covered on tunnel ditch.In addition, the metal level 2 of this set has excellent corrosion resistance, further increases the application life of cover plate 100.
It should be noted that, cover plate 100 is not limited to comprise two-layer rubber layer 1 and one deck steel plate layer 2, can also be sandwich construction.Such as, cover plate 100 steel plate layer 2 that comprises three layers of rubber layer 1 and be arranged between each two-layer rubber layer 1.
Need to further illustrate, the cover plate 100 shown in accompanying drawing 2 is an embodiment of the application.In this embodiment, metal level 2 is configured to steel plate layer, namely has boundary in elastomeric polymer layer 1 and metal level 2.But the cover plate of the application 100 is not limited to this structure.Such as, metal level 2 can comprise wire lath and be limited to the elastomeric polymer in wire lath.In like manner, cover plate 100 also can comprise multiple metal level 2 be made up of wire lath.
Cover plate 100 width can be configured on the upper surface of the two side being overlapped on tunnel ditch, as shown in Figure 4.Cover plate 100 width also can be configured to be connected in the mounting groove of tunnel ditch both sides, more stably covers on tunnel ditch to make cover plate 100.
Covering the firmness on tunnel ditch to increase cover plate 100, the bottom surface of cover plate main body 50 arranging locating part 3, as shown in Figure 3.Locating part 3 can coordinate with the sidewall of tunnel ditch, to be limited on tunnel ditch by cover plate 100.According to the present invention, locating part 3 has tooth-like part 31.When being arranged on tunnel ditch by cover plate 100, locating part 3 extends in tunnel ditch, and its tooth-like part 31 and the sidewall contact of tunnel ditch, to increase locating part 3 and the frictional force of the sidewall of tunnel ditch, make cover plate 100 stably cover on tunnel ditch.
Convenient for production in order to install, and can with more stable the coordinating of tunnel ditch, a cover plate 100 arranges four locating parts 3, and it is rectangular distribution on the bottom surface of cover plate main body 50.Preferably, locating part 3 can be made up of elastomeric material.And in the mounted state, with the sidewall interference fit of tunnel ditch.
It should be noted that the structure of locating part 3 and be not limited to above-mentioned form with the annexation of cover plate main body 50 can also be other form of structure.Such as, locating part 3 can also be configured to flexure strip outstanding gradually to both sides on direction from top to bottom.When cover plate 100 is installed to tunnel ditch, force in flexure strip, make it inwardly shrink to be received in tunnel ditch, afterwards under its own resilient effect, be connected on the sidewall of tunnel ditch, so that cover plate 100 is connected on tunnel ditch.
China in northwest, Deng Han district, northeast built a large amount of construction of tunnel, two ends, tunnel in winter Portal Section temperature is lower, in cold and severe cold area, be easy to the water freezing caused in gutter, and spread to outside ditch gradually, destroy ditch structure, and then jeopardize traffic safety.Thus discharge smoothly in order to ensure the water in tunnel ditch does not freeze, need the heat preservation member 4 that boxlike is set on the bottom surface of cover plate main body 50, as shown in Figure 5.Heat preservation member 4 can be configured to hollow balloon structure.Or the heat insulating material (not shown) that heat preservation member 4 comprises box body 41 and is arranged in box body 41.Preferably, heat insulating material can be the one in the materials such as polyurethane material, asbestos, needle spikesedge herb or polystyrene foam plastics.The heat preservation member 4 of cover plate 100 can extend in tunnel ditch, when not affecting the flowing of water in tunnel ditch.Meanwhile, heat preservation member 4 can coordinate with the sidewall of tunnel ditch, and the heat preservation member 4 between adjacent cover plate 100 also can coordinate closely, to stop that cold air enters.
As shown in Figure 6, when being installed on tunnel ditch by cover plate 100, heat preservation member 4 extends in tunnel ditch, and on the liquid level of the bottom surface of heat preservation member 4 in tunnel ditch, does not hinder the water flow in tunnel ditch.Meanwhile, the both sides of heat preservation member 4 coordinate with the sidewall of tunnel ditch, cover the stability on tunnel ditch to maintain cover plate 100.Such as, if the sidewall of heat preservation member 4 is elastomeric material, the sidewall of heat preservation member 4 and the sidewall interference fit of tunnel ditch can be made.In addition, when covering this cover plate 100 on tunnel ditch, heat preservation member 4 also serves the effect into cover plate 100 location, can be laid by cover plate 100 quickly and accurately and put in place.
According to the user demand of cover plate 100, such as, when cover plate 100 is applied to railway tunnel, slag trap 5 can also be set on the end face of cover plate main body 50.As illustrated in Figures 5 and 6, slag trap 5 is substantially perpendicular with cover plate main body 50, is arranged on the side near center, tunnel, and arranges along the bearing of trend in tunnel.Slag trap 5 blocks railway tunnel railway ballast, and defines the position of railway ballast.
As shown in Figure 1, anti-slip veins 6 can also be set on the end face of cover plate main body 50.Thus, by this arrangement ensure that the safety of the personnel of walking on cover plate 100.
Fig. 7 shows the structure chart of cover plate assembly 200.As shown in Figure 7, cover plate assembly 200 comprises the cover plate 100 cooperatively interacted.In order to install facility, adjacent cover plate 100 can dock.But this connected mode is not fine when ensureing the sealing effect of tunnel ditch.
Thus, in order to ensure the closure of tunnel ditch, prevent impurity etc. from entering tunnel ditch, and cause tunnel ditch to block.At the two ends of cover plate main body 50, connecting portion 7 is set.Work in coordination between connecting portion 7 to increase the seal between adjacent cover plate 100.
In one embodiment, as shown in Figure 7, connecting portion 7 is set to stage portion.The connecting portion 7 at the two ends of a cover plate 100 is all configured to gap type.And another identical cover plate 100 of structure is set at the two ends of this cover plate 100, the two ends of another cover plate 100 are all set to lower gap type.Be assembled into by cover plate 100 in the process of cover plate assembly 200, the connecting portion 7 of another cover plate 100 is overlapped on the connecting portion 7 of a cover plate 100, and two connecting portions 7 coordinate overlap joint that the end face of two cover plates 100 is in identical horizontal plane.The cover plate assembly 200 of this bridging arrangement, when making have cover plate 100 need repairing or change wherein, can be easy to it to disassemble from tunnel ditch.
In another embodiment, cover plate 100 can also be configured to the connecting portion 7 that one end has upper gap type, and the other end has connecting portion 7 (not shown) of lower gap type.In the process of installing cover plate 100, the connecting portion 7 of the lower gap type of a cover plate 100 covers on the connecting portion 7 of the upper gap type of another adjacent cover plate 100.In this manner, cover plate 100 connects to other end direction successively from one end of tunnel ditch.The cover plate assembly 200 of this bridging arrangement ensure that the stability of cover plate 100 on tunnel ditch.
It should be noted that, the breach of connecting portion 7 can be configured to square-section, but the present invention is not limited to this structure.Namely connecting portion 7 can also be configured to triangular-section, trapezoid cross section, arcuation cross section, and dentation cross section etc.As long as make adjacent cover plate 100 coordinate overlap joint, and the more smooth connecting portion 7 of the end face surface degree of overlap joint back shroud 100 is coordinated to fall into protection scope of the present invention at adjacent cover plate 100.
Need to illustrate time, when the cover plate 100 with heat preservation member 4 is assembled into cover plate assembly 200, the adjacent contact of heat preservation member 4 included by cover plate 100 connects, to guarantee to maintain the temperature in tunnel ditch.
The foregoing is only the preferred embodiment of the present invention; but scope is not limited thereto; any those skilled in the art, in technical scope disclosed by the invention, can easily carry out changing or changing, and this change or change all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. for a cover plate for tunnel ditch, it is characterized in that, comprise the cover plate main body for covering the opening part at tunnel ditch, described cover plate main body comprises elastomeric polymer layer and is arranged on the metal level between described elastomeric polymer layer.
2. cover plate according to claim 1, is characterized in that, described elastomeric polymer layer is the rubber layer of fire-resistant,
Or/and described metal level is steel plate layer.
3. cover plate according to claim 1 and 2, is characterized in that, the bottom surface of described cover plate main body is arranged for described cover plate being limited in the locating part on tunnel ditch, and described locating part can coordinate with the sidewall of tunnel ditch.
4. cover plate according to claim 3, is characterized in that, described locating part is provided with the tooth-like part coordinated with the sidewall of tunnel ditch,
And/or four locating parts of rectangular distribution are set on the bottom surface of described cover plate main body.
5. cover plate according to claim 1 and 2, it is characterized in that, the bottom surface of described cover plate main body arranges the heat preservation member of boxlike, described heat preservation member can extend in tunnel ditch, and on the liquid level of the bottom surface of described heat preservation member in tunnel ditch, the both sides of described heat preservation member coordinate with the sidewall of tunnel ditch.
6. cover plate according to claim 5, is characterized in that, described heat preservation member is embodied as hollow balloon structure,
Or described heat preservation member comprises box body and is arranged on the heat insulating material in described box body.
7. cover plate according to claim 1, is characterized in that, the end face of described cover plate main body arranges slag trap, and described slag trap is arranged on the side near center, tunnel, and arranges along the bearing of trend in described tunnel.
8. a cover plate assembly, is characterized in that, it comprises the cover plate according to any one of claim 1 to 7, and the two ends of described cover plate main body are provided with connecting portion, and described connection part structure is to make contact between adjacent described cover plate connect.
9. cover plate assembly according to claim 8, it is characterized in that, described connecting portion is set to stage portion, the stage portion of one end of described cover plate main body is configured to gap type, and the stage portion of the other end of described cover plate main body be configured to can with the lower gap type of the described stage portion mating shapes of upper gap type.
10. cover plate assembly according to claim 8, it is characterized in that, described connecting portion is set to stage portion, the stage portion at the two ends of a described cover plate main body in adjacent described cover plate main body is configured to gap type, and stage portion at the two ends of cover plate main body is configured to lower gap type described in another in adjacent described cover plate main body, wherein, the described stage portion of upper gap type can match with the described stage portion of lower gap type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058881.7A CN104632278A (en) | 2015-02-04 | 2015-02-04 | Cover plate for tunnel ditch and cover plate component including the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510058881.7A CN104632278A (en) | 2015-02-04 | 2015-02-04 | Cover plate for tunnel ditch and cover plate component including the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632278A true CN104632278A (en) | 2015-05-20 |
Family
ID=53211457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510058881.7A Pending CN104632278A (en) | 2015-02-04 | 2015-02-04 | Cover plate for tunnel ditch and cover plate component including the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632278A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386225A (en) * | 2018-04-17 | 2018-08-10 | 中铁第勘察设计院集团有限公司 | The insulation construction in tunnel in cold regions gutter |
| CN114808553A (en) * | 2022-04-18 | 2022-07-29 | 湖北坤能科技有限公司 | Disease treatment method for rail transit drainage ditch |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922157A (en) * | 2010-09-20 | 2010-12-22 | 黄武昌 | Safe cover system with safe screen frame, theft prevention and displacement increase |
| JP4601046B2 (en) * | 2004-10-05 | 2010-12-22 | ダイチ工営株式会社 | Wastewater treatment system in tunnel |
| CN203174467U (en) * | 2013-03-30 | 2013-09-04 | 天台县神华劳务服务有限公司 | Rubber cover plate for walking and slag stopping on groove of bridge or tunnel |
| CN203213268U (en) * | 2013-05-16 | 2013-09-25 | 卢俊波 | Thermal insulation and waterproof sealing well cover |
| CN203429925U (en) * | 2013-08-22 | 2014-02-12 | 中国建筑第五工程局有限公司重庆分公司 | Heat preservation ditch |
| CN103867231A (en) * | 2014-03-31 | 2014-06-18 | 中铁第一勘察设计院集团有限公司 | Tunnel ditch insulation structure |
| CN204572059U (en) * | 2015-02-04 | 2015-08-19 | 中国铁道科学研究院铁道建筑研究所 | For tunnel ditch cover plate and comprise its cover plate assembly |
-
2015
- 2015-02-04 CN CN201510058881.7A patent/CN104632278A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4601046B2 (en) * | 2004-10-05 | 2010-12-22 | ダイチ工営株式会社 | Wastewater treatment system in tunnel |
| CN101922157A (en) * | 2010-09-20 | 2010-12-22 | 黄武昌 | Safe cover system with safe screen frame, theft prevention and displacement increase |
| CN203174467U (en) * | 2013-03-30 | 2013-09-04 | 天台县神华劳务服务有限公司 | Rubber cover plate for walking and slag stopping on groove of bridge or tunnel |
| CN203213268U (en) * | 2013-05-16 | 2013-09-25 | 卢俊波 | Thermal insulation and waterproof sealing well cover |
| CN203429925U (en) * | 2013-08-22 | 2014-02-12 | 中国建筑第五工程局有限公司重庆分公司 | Heat preservation ditch |
| CN103867231A (en) * | 2014-03-31 | 2014-06-18 | 中铁第一勘察设计院集团有限公司 | Tunnel ditch insulation structure |
| CN204572059U (en) * | 2015-02-04 | 2015-08-19 | 中国铁道科学研究院铁道建筑研究所 | For tunnel ditch cover plate and comprise its cover plate assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386225A (en) * | 2018-04-17 | 2018-08-10 | 中铁第勘察设计院集团有限公司 | The insulation construction in tunnel in cold regions gutter |
| CN114808553A (en) * | 2022-04-18 | 2022-07-29 | 湖北坤能科技有限公司 | Disease treatment method for rail transit drainage ditch |
| CN114808553B (en) * | 2022-04-18 | 2023-10-20 | 湖北坤能科技有限公司 | Method for repairing diseases of rail transit drainage ditch |
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Application publication date: 20150520 |
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