CN106400647A - Draining pipe applied to drainage and reinforcement of existing expressway side slope and construction method of draining pipe - Google Patents
Draining pipe applied to drainage and reinforcement of existing expressway side slope and construction method of draining pipe Download PDFInfo
- Publication number
- CN106400647A CN106400647A CN201610841270.4A CN201610841270A CN106400647A CN 106400647 A CN106400647 A CN 106400647A CN 201610841270 A CN201610841270 A CN 201610841270A CN 106400647 A CN106400647 A CN 106400647A
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- China
- Prior art keywords
- drain pipe
- draining pipe
- pipe
- side slope
- holes
- 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.)
- Granted
Links
- 238000010276 construction Methods 0.000 title claims abstract description 14
- 230000002787 reinforcement Effects 0.000 title abstract 3
- 239000002689 soil Substances 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000003780 insertion Methods 0.000 claims description 7
- 230000037431 insertion Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000009286 beneficial effect Effects 0.000 description 6
- 235000010044 Hernandia moerenhoutiana Nutrition 0.000 description 4
- 244000084296 Hernandia moerenhoutiana Species 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000007596 consolidation process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/224—Surface drainage of streets
- E01C11/227—Gutters; Channels ; Roof drainage discharge ducts set in sidewalks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B11/00—Drainage of soil, e.g. for agricultural purposes
- E02B11/005—Drainage conduits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a draining pipe applied to drainage and reinforcement of an existing expressway side slope and a construction method of the draining pipe. The head of the draining pipe is in a flat shovel shape; the draining pipe body is provided with rectangular holes and circular holes, wherein the rectangular holes and the circular holes are triangularly distributed along the longitudinal direction and are distributed at an interval in the same rectilinear direction; at least four holes are uniformly distributed along each circle of the circumferential direction of the draining pipe body; the tail of the draining pipe has one arc section provided with no hole, and the rest arc sections are provided with at least three holes which are uniformly distributed. The construction method of the draining pipe comprises the following steps: (1) taking the flat shovel end of each draining pipe as an inserting end; (2) taking the arc section, provided with no hole, of each draining pipe as a bottom surface; (3) obliquely inserting the flat shovel end of each draining pipe at a gradient of 20% into a stable soil layer of the side slope so as to form rectangular or triangular arrangement at the slope surface. According to the draining pipe disclosed by the invention, the front section of the draining pipe is set in a flat shovel shape, so the draining pipe can be beneficially inserted into the side slope, more convenient and quicker construction can be realized, and the aim of rapid drainage and reinforcement of the side slope is fulfilled.
Description
Technical field
The invention belongs to slope treatment and protection technology field, be related to a kind of for existing expressway slope draining and
The drain pipe reinforced and its construction method.
Background technology
At present, the highway mileage open to traffic of China, more than 120,000 kilometers, occupies the first in the world it is contemplated that following 13 is last
Mileage open to traffic is up to 160,000 kilometers.The new challenge that so huge freeway net proposes to the maintenance of road.
Continuous heavy showers is one of main inducing of causing expressway slope to cave in, and continuous heavy showers causes embankment underground
Water level goes up, and the weight of one side slide mass increases, on the other hand, the intensity decreases of the soil body, and therefore, the safety coefficient fall of side slope
Low, cave in thus there occurs.It is different from traditional slope project, expressway slope, after caving in, needs quickly to be repaiied
Answer and administer, to be open to traffic as early as possible and to relieve traffic congestion.And solve this problem key challenge is how that side slope is carried out effectively
Ground Quick drainage and reinforcing.
The number of patent application that State Intellectual Property Office announced on 2 20th, 2013 is 201220429346.X, name
Claim：A kind of utility model patent of the white-out structure reducing slope soil level of ground water and moisture content, this patent proposes following skill
Art scheme：Multiple drain pipies are set on the full slope in slope soil surface, multiple drain pipies are according to rectangular array or quincunx array cloth
Put, although this patent can play the effect of draining it is impossible to enough rapidly reinforce expressway slope.
The number of patent application that State Intellectual Property Office announced on March 13rd, 2013 is 201210543882.7, name
Claim：A kind of system for automatically draining water on side slope and its patent of invention of method, this patent proposes following technical scheme：Including energy storage dress
Put, triggering device and drainage arrangement.But these devices need before building side slope, complete energy storage device, triggering device and
Building of drainage arrangement, cannot implement this patent to existing expressway slope, thus to existing expressway slope no
Method reaches Quick drainage and reinforcing.
Content of the invention
The present invention provides a kind of drain pipe being applied to existing highway Quick drainage and reinforcing and its construction method, existing
Following technical scheme is proposed：
A kind of drain pipe for existing expressway slope draining and reinforcing, described drain pipe tube head is flat chisel shape, institute
State drain pipe pipe shaft and be provided with the rectangular opening of distribution triangular in shape and circular port and described rectangular opening and circular port in a longitudinal direction
Spaced apart in same rectilinear direction, along the circumferential direction every ring is uniformly distributed at least 4 holes, described row to described drain pipe pipe shaft
Water pipe pipe tail has the segmental arc not apertured that a central angle is 90 °～130 °, and along the circumferential direction every ring is evenly distributed to remaining segmental arc
Few 3 holes.
Further improvement of these options, along the circumferential direction every ring is distributed 6 holes, described draining to described drain pipe pipe shaft
Pipe pipe tail has the segmental arc not apertured that a central angle is 120 °, and along the circumferential direction every ring is uniformly distributed 5 holes to remaining segmental arc.
Further improvement of these options, drain pipe external diametrical extent is 40 100mm, and wall thickness range is 2 5mm, rectangle
The longitudinal size in hole is 20-60mm, and the scope of the diameter of lateral dimension and circular port is 2 5mm, adjacent rectangular opening and circle
Longitudinal center's spacing between shape hole is the longitudinal size of rectangular opening.
Further improvement of these options, described drain pipe is a kind of steel pipe, and steel grade selects Q235, in drain pipe
Outer surface is zinc-plated.
A kind of construction method for existing expressway slope draining and the drain pipe of reinforcing described in such scheme is：
(1) using the flat chisel end of described drain pipe as insertion end；
(2) segmental arc being 90 °～130 ° using described drain pipe central angle is as bottom surface；
(3) enter in stability of slope soil layer with 2% gradient oblique cutting, on domatic and with rectangle or triangular arrangement.
The beneficial effect that the present invention obtains：
(1) leading portion of drain pipe is set to flat chisel shape, beneficial to inserting in side slope drain pipe, construction is got up convenient fast
Victory, pipe shaft arranges multiple osculums, discharges side slope beneficial to by the water in side slope by drain pipe, by the described drainage pipe end center of circle
Angle be 90 °～130 ° of segmental arc as bottom surface in order to avoid the water penetration that flows out to the surface of side slope.
(2) rectangular opening being interspersed and circular port are designed on pipe shaft longitudinal direction, comparing is all the row of rectangular opening
Water pipe, the drain pipe of the present invention rigidly will be well it is not easy to fracture, and comparing is all the drain pipe of circular port, and drainage effect will be more
Smooth.
(3) because the very little of the aperture design of side slope is it is not necessary to by fixing a drainpipe in side slope boring, this ensure that
The integrity of side slope, inserts drain pipe, due to the effect of extruding, the more consolidation of the soil around drain pipe, makes side slope firmer,
Thus serving the reinforcing to existing side slope.
(4) select steel pipe as drain pipe, surfaces externally and internally is zinc-plated antirust so that the durability of drain pipe is preferable, Neng Goujie
About maintenance cost.
(5) operational approach, simply it is only necessary to insert in side slope drain pipe it is not necessary to other hole, increased necessary
Simplicity.
Brief description
Fig. 1 is a kind of front view for existing expressway slope draining and the drain pipe of reinforcing of the present invention.
Fig. 2 is a kind of attached view for existing expressway slope draining and the drain pipe of reinforcing of the present invention.
Fig. 3 is a kind of stage casing pipe shaft for existing expressway slope draining and the drain pipe of reinforcing of the present invention
Sectional view.
Fig. 4 is a kind of latter end pipe shaft for existing expressway slope draining and the drain pipe of reinforcing of the present invention
Sectional view.
Reference：Rectangular opening -1；Circular port -2；Drain pipe tube head -3；Drain pipe pipe shaft -4；Drain pipe pipe tail -5.
Specific embodiment
Technological means, creation characteristic, reached purpose and effect for making the present invention realize are easy to understand, with reference to
Specific embodiment, is expanded on further the present invention.
Embodiment 1
A kind of drain pipe for existing expressway slope draining and reinforcing, described drain pipe tube head 3 is flat chisel shape, institute
State rectangular opening 1 and circular port 2 and described rectangular opening 1 and the circle that drain pipe pipe shaft 4 is provided with distribution triangular in shape in a longitudinal direction
Shape hole 2 is spaced apart in same rectilinear direction, and along the circumferential direction every ring is uniformly distributed 4 holes to described drain pipe pipe shaft 4, described
Drain pipe pipe tail 5 has the segmental arc not apertured that a central angle is 130 °, and along the circumferential direction every ring is uniformly distributed 3 to remaining segmental arc
Hole.Wherein drain pipe external diameter is 40mm, and wall thickness is 2mm, and the longitudinal size of rectangular opening 1 is 20mm, lateral dimension and circular port 2
Diameter is 2mm, and the longitudinal center's spacing between adjacent rectangular opening 1 and circular port 2 is the longitudinal size of rectangular opening 1.
In the present embodiment, described drain pipe is a kind of steel pipe, and steel grade selects Q235, and drain pipe surfaces externally and internally plates
Zinc.
The construction method of above-mentioned drain pipe is：(1) using the flat chisel end of described drain pipe as insertion end；(2) by described row
Water pipe pipe tail 5 central angle is 90 ° of segmental arc as bottom surface；(3) enter in stability of slope soil layer with 2% gradient oblique cutting, with square
Arrangement, every square metre of side slope inserts 9 drain pipies.
Embodiment 2
A kind of drain pipe for existing expressway slope draining and reinforcing, described drain pipe tube head 3 is flat chisel shape, institute
State drain pipe pipe shaft 4 and be provided with rectangular opening 1 and circular port 2 and described rectangular opening 1 and circle along horizontal direction distribution triangular in shape
Shape hole 2 is spaced apart in same rectilinear direction, and along the circumferential direction every ring is uniformly distributed 6 holes to described drain pipe pipe shaft 4, described
Drain pipe pipe tail 5 has the segmental arc not apertured that a central angle is 120 °, and along the circumferential direction every ring is uniformly distributed 5 to remaining segmental arc
Hole.Wherein drain pipe external diameter is 70mm, and wall thickness is 3mm, and the longitudinal size of rectangular opening 1 is 30mm, lateral dimension and circular port 2
Diameter be 4mm, the longitudinal center's spacing between adjacent rectangular opening 1 and circular port 2 be rectangular opening 1 longitudinal size.
In the present embodiment, described drain pipe is a kind of steel pipe, and steel grade selects Q235, and drain pipe surfaces externally and internally plates
Zinc.
The construction method of above-mentioned drain pipe is：(1) using the flat chisel end of described drain pipe as insertion end；(2) by described row
Water pipe pipe tail 5 central angle is 120 ° of segmental arc as bottom surface；(3) enter in stability of slope soil layer with 2% gradient oblique cutting, with triangle
Arrangement, every square metre of side slope inserts 4 drain pipies.
Embodiment 3
A kind of drain pipe for existing expressway slope draining and reinforcing, described drain pipe tube head 3 is flat chisel shape, institute
State rectangular opening 1 and circular port 2 and described rectangular opening 1 and the circle that drain pipe pipe shaft 4 is provided with distribution triangular in shape in a longitudinal direction
Shape hole 2 is spaced apart in same rectilinear direction, and along the circumferential direction every ring is uniformly distributed 8 holes to described drain pipe pipe shaft 4, described
Drain pipe pipe tail 5 has the segmental arc not apertured that a central angle is 90 °, and along the circumferential direction every ring is uniformly distributed 7 holes to remaining segmental arc.
Wherein drain pipe external diameter is 100mm, and wall thickness is 5mm, and the longitudinal size of rectangular opening 1 is 40mm, lateral dimension and circular port 2 straight
Footpath is 5mm, and the longitudinal center's spacing between adjacent rectangular opening 1 and circular port 2 is the longitudinal size of rectangular opening 1.
In the present embodiment, described drain pipe is a kind of steel pipe, and steel grade selects Q235, and drain pipe surfaces externally and internally plates
Zinc.
The construction method of above-mentioned drain pipe is：(1) using the flat chisel end of described drain pipe as insertion end；(2) by described row
Water pipe pipe tail 5 central angle is 90 ° of segmental arc as bottom surface；(3) enter in stability of slope soil layer with 2% gradient oblique cutting, every square metre
Side slope inserts 1 drain pipe.
In the present embodiment, described drain pipe is a kind of steel pipe, and steel grade selects Q235, and drain pipe surfaces externally and internally plates
Zinc.
The construction method of above-mentioned drain pipe is：(1) using the flat chisel end of described drain pipe as insertion end；(2) by described row
Water pipe end 5 central angle is 90 ° of segmental arc as bottom surface；(3) enter in stability of slope soil layer with 2% gradient oblique cutting, every square metre
Side slope inserts 1 drain pipe.
Based on above-described embodiment, the leading portion 1 of drain pipe is set to flat chisel shape, inserts in side slope beneficial to by drain pipe, construct
Get up more convenient, pipe shaft arranges multiple osculums, beneficial to by the water of side slope soil the inside, side slope is discharged by drain pipe, because
Very little for aperture design, it is easy to make to penetrate soil layer, makes the soil more consolidation around drain pipe, thus strengthening side slope soil
Layer, makes side slope be not easy to cave in.
Will be zinc-plated for drain pipe surfaces externally and internally antirust so that the durability of described drain pipe preferably, can save maintenance cost.
Using flat chisel end as insertion end, insert in side slope beneficial to by drain pipe, construct more convenient, will be described
Drainage pipe end central angle be 90 °～130 ° of segmental arc as bottom surface in order to avoid the water penetration flowing out to side slope
Surface.
Those of ordinary skill in the art it should be appreciated that above embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, the change as long as in the spirit of the present invention, to embodiment described above
Change, modification all will fall in scope of the presently claimed invention.
Claims (5)
1. a kind of drain pipe for existing expressway slope draining and reinforcing it is characterised in that：Described drain pipe tube head is
Flat chisel shape, described drain pipe pipe shaft is provided with the rectangular opening of distribution triangular in shape and circular port and described rectangular opening in a longitudinal direction
Spaced apart in same rectilinear direction with circular port, along the circumferential direction every ring is uniformly distributed at least 4 to described drain pipe pipe shaft
Hole, described drain pipe pipe tail has the segmental arc not apertured that a central angle is 90 °～130 °, and along the circumferential direction every ring is equal for remaining segmental arc
At least 3 holes of even distribution.
2. a kind of drain pipe for existing expressway slope draining and reinforcing according to claim 1, its feature exists
In：Along the circumferential direction every ring is distributed 6 holes to described drain pipe pipe shaft, and described drain pipe pipe tail has the segmental arc that a central angle is 120 °
Not apertured, along the circumferential direction every ring is uniformly distributed 5 holes to remaining segmental arc.
3. a kind of drain pipe for existing expressway slope draining and reinforcing according to claim 1, its feature exists
In：Drain pipe external diametrical extent is 40 100mm, and wall thickness range is 2 5mm, and the longitudinal size of rectangular opening is 20-60mm, horizontal chi
The scope of the very little diameter with circular port is 2 5mm, and the longitudinal center's spacing between adjacent rectangular opening and circular port is equal to square
The longitudinal size in shape hole.
4. a kind of drain pipe for existing expressway slope draining and reinforcing according to claim 1, its feature exists
In：Described drain pipe is a kind of steel pipe, and steel grade selects Q235, and drain pipe surfaces externally and internally is zinc-plated.
5. any one according to claim 1-4 is used for the drain pipe of existing expressway slope draining and reinforcing, and it is special
Levy and be：Its construction method is：
(1) using the flat chisel end of described drain pipe as insertion end；
(2) segmental arc being 90 °～130 ° using described drain pipe central angle is as bottom surface；
(3) enter in stability of slope soil layer with 2% gradient oblique cutting, on domatic and with rectangle or triangular arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610841270.4A CN106400647B (en) | 2016-09-21 | 2016-09-21 | The drainpipe and its construction method for draining and reinforcing for existing expressway slope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610841270.4A CN106400647B (en) | 2016-09-21 | 2016-09-21 | The drainpipe and its construction method for draining and reinforcing for existing expressway slope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106400647A true CN106400647A (en) | 2017-02-15 |
| CN106400647B CN106400647B (en) | 2019-06-14 |
Family
ID=57996939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610841270.4A Active CN106400647B (en) | 2016-09-21 | 2016-09-21 | The drainpipe and its construction method for draining and reinforcing for existing expressway slope |
Country Status (1)
| Country | Link |
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| CN (1) | CN106400647B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142923A (en) * | 2017-05-25 | 2017-09-08 | 湖南科鑫电力设计有限公司 | Drainpipe and the method that side slope downslide is handled using the drainpipe |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033019U (en) * | 1988-07-02 | 1989-02-22 | 合肥工业大学 | Strip water-filted pipe |
| CN2377348Y (en) * | 1999-04-19 | 2000-05-10 | 山西省榆次市水泥制管厂 | Large bore water filtering tube |
| CN2392060Y (en) * | 1998-12-02 | 2000-08-16 | 兰州鼎泰塑料有限公司 | Plastic double wall corrugated tube with holes |
| JP2009052377A (en) * | 2007-08-01 | 2009-03-12 | Hidemasa Ota | Collapse prevention method of construction of bank |
| CN202969284U (en) * | 2012-11-29 | 2013-06-05 | 海南大学 | Water discharging soil nail and side slope water discharging system |
| CN203569547U (en) * | 2013-10-30 | 2014-04-30 | 柏发忠 | Seepage-drainage pipe |
| CN204139159U (en) * | 2014-10-09 | 2015-02-04 | 宿迁华夏建设(集团)工程有限公司 | Side slope deep layer gutter |
| CN204826144U (en) * | 2015-08-12 | 2015-12-02 | 常德七星泰塑业有限公司 | Infiltration drain pipe |
| CN205444395U (en) * | 2015-12-30 | 2016-08-10 | 广东中科华冉智网新材料科技有限公司 | Be equipped with drain pipe in hole of permeating water on pipe wall |
| CN205557323U (en) * | 2016-04-25 | 2016-09-07 | 山东畅通路桥股份有限公司 | Hinge joint drainage structures |
-
2016
- 2016-09-21 CN CN201610841270.4A patent/CN106400647B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033019U (en) * | 1988-07-02 | 1989-02-22 | 合肥工业大学 | Strip water-filted pipe |
| CN2392060Y (en) * | 1998-12-02 | 2000-08-16 | 兰州鼎泰塑料有限公司 | Plastic double wall corrugated tube with holes |
| CN2377348Y (en) * | 1999-04-19 | 2000-05-10 | 山西省榆次市水泥制管厂 | Large bore water filtering tube |
| JP2009052377A (en) * | 2007-08-01 | 2009-03-12 | Hidemasa Ota | Collapse prevention method of construction of bank |
| CN202969284U (en) * | 2012-11-29 | 2013-06-05 | 海南大学 | Water discharging soil nail and side slope water discharging system |
| CN203569547U (en) * | 2013-10-30 | 2014-04-30 | 柏发忠 | Seepage-drainage pipe |
| CN204139159U (en) * | 2014-10-09 | 2015-02-04 | 宿迁华夏建设(集团)工程有限公司 | Side slope deep layer gutter |
| CN204826144U (en) * | 2015-08-12 | 2015-12-02 | 常德七星泰塑业有限公司 | Infiltration drain pipe |
| CN205444395U (en) * | 2015-12-30 | 2016-08-10 | 广东中科华冉智网新材料科技有限公司 | Be equipped with drain pipe in hole of permeating water on pipe wall |
| CN205557323U (en) * | 2016-04-25 | 2016-09-07 | 山东畅通路桥股份有限公司 | Hinge joint drainage structures |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142923A (en) * | 2017-05-25 | 2017-09-08 | 湖南科鑫电力设计有限公司 | Drainpipe and the method that side slope downslide is handled using the drainpipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106400647B (en) | 2019-06-14 |
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