CN109914182A - A kind of road drainage system and express highway - Google Patents
A kind of road drainage system and express highway Download PDFInfo
- Publication number
- CN109914182A CN109914182A CN201910291305.5A CN201910291305A CN109914182A CN 109914182 A CN109914182 A CN 109914182A CN 201910291305 A CN201910291305 A CN 201910291305A CN 109914182 A CN109914182 A CN 109914182A
- Authority
- CN
- China
- Prior art keywords
- rhone
- gutter
- slot bottom
- cell wall
- drainage system
- 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
Landscapes
- Road Paving Structures (AREA)
Abstract
The present invention relates to highway drainage technical field, a kind of road drainage system and express highway are specifically disclosed.Wherein the high roadbed drainage system of express highway includes gutter and the drainpipe made of corrugated steel pipe, rhone is installed in gutter, rhone is formed by several rhone units are end to end, rhone unit includes slot bottom and the cell wall set on slot bottom two sides, and slot bottom and cell wall are made of corrugated steel.Above-mentioned high roadbed drainage system, the design concept of traditional high filling section drainage system is overturned, by the hidden draining of centralization, the excessive intrusion roadbed soil property of rainwater can be effectively prevented, so prevent because rainwater it is excessive caused by destroy subgrade soil structure even subgrade soil collapsing;Rhone and corrugated steel pipe have the strong advantage of ground deformability that adapts to, lower to foundation capability, flatness requirement, are conducive to improve uneven subsidence existing for the special foundations structures such as ever-frozen ground, weak soil, swelled ground, collapsible loess.
Description
Technical field
The present invention relates to highway drainage technical fields, and in particular to a kind of road drainage system and express highway.
Background technique
According to JTJ/T D33--2012 " highway drainage design specification ", road surface draining should meet following provisions: 1, road
Moat location pavement surface water should be come together in gutter by way of lateral drainage;2, embankment is higher and slope surface is not protected, or
Though slope surface has safeguard procedures it is nonetheless possible to by the section washed away, central drainage system in the road surface Ying Caiyong excludes road table water;3,
In downwardly vertical central drainage on embankment and cutting slope surface or slope surface platform, chute, gutter, intercepting ditch, gutter are preferably set
Rainwater is drained into low-lying place, the bridges and culverts, natural waterway or farmland in its water outlet downstream is avoided to be washed away;4, ditch, canal it is main
Construction material is based on masonry marshalling.
It but is in actual design and application process, even if strictly according to above-mentioned JTJ/T D33--2012 " highway drainage
Design specification " it is designed and constructs, can still there be corresponding technical problem.
In Collapsible Loess District (such as the flourish black high speed Huhehaote section of G18), precipitation in rain season is big, according to " highway row
Water design specification " roadbed of the highway, road surface combined drainage system, excavation road section surface, cutting slope surface rainwater utilization are dug
It square section gutter and fills out and digs the gutter that is mutually connected of junction and drain into low-lying place.Embankment section rainwater on road surface collects road surface with water band is blocked
The low-lying place of roadbed is drained by chute after rainwater to be designed.
As shown in Figure 1, the two sides on high roadbed road surface 11 in the prior art, which are equipped with, blocks water band 12, this is blocked on water band 12 along length
It spends direction and is equipped with several discharge outlet 13, which is correspondingly provided with the chute 14 positioned at 10 side of high-fill roadbed, high
Rainwater on embankment road surface 11 is emitted into low-lying place via discharge outlet and chute.
As shown in Fig. 2, the two sides on excavation road surface 21 in the prior art are equipped with gutter 30, generally in cut subgrade 20 and height
Gutter 22 is arranged in the cohesive position of filled-up ground, and the rainwater on excavation road surface is emitted into low-lying place via gutter and gutter.
However, rainwater surges in gutter, gutter, chute, rainwater easily splashes out gutter, gutter, chute, causes
Gutter, gutter, chute and soil contact site immerse rainwater, and saturated yielding occurs for the structure of loess after immersion, lead to dirty work masonry
It cracks and collapses, high filling section is caused to cave in, threaten the safety of driving vehicle.After pumping equipment collapses, when maintenance
Between it is tight, need to transport cement and sand, slabstone repair pumping equipment, be difficult to repair in a short time and project cost far beyond
Normal construction budget.Simultaneously because the Subgrade Subsidence part restored in short term, design requirement nature sink deformation is not achieved in compactness,
The drainage system restored deformation is caused to collapse again.
Summary of the invention
The technical problem to be solved by the present invention is to solve the drainage system of highway in the prior art when discharging rainwater
Since rainwater spluttering is easily led to, highway is damaged and influences driving safety and the short time is difficult to repair after highway is impaired
And the technological deficiency that recovery project cost is high.
In order to solve the above technical problem, the present invention provides technical solution it is as follows: a kind of express highway at least wraps
High filling section and excavation section are included, the high filling section is equipped with high roadbed drainage system, and the excavation section is equipped with excavation
Drainage system, the high roadbed drainage system include along its length set on the gutter of high roadbed road surface two sides and set on gutter
The drainpipe that outside is connected to gutter, the drainpipe are made of corrugated steel pipe;The high roadbed road surface is close to the position of gutter
Be equipped with along its length and block water band, the water band that blocks equipped with several discharge outlet towards gutter, be equipped in the gutter with
The rhone of gutter adaptation, the rhone are formed by several rhone units are end to end, and the rhone unit includes slot
Bottom and cell wall set on slot bottom two sides, the slot bottom and cell wall are made of corrugated steel.
The express highway of the structure has following technical advantage:
(1) design concept of traditional high filling section drainage system has been overturned, in traditional expressway design, usually
Gutter is generally disposed at excavation section, and high filling section, which uses, blocks water band and chute draining.In the present embodiment, by traditional height
Embankment section distributing draining by setting blocks water band and gutter, rainwater is collected, then focus in drainpipe drain into it is low
Depression, the hidden draining of centralization, can be effectively prevented the excessive intrusion roadbed soil property of rainwater, so prevent because rainwater it is excessive caused by
Subgrade soil structure even subgrade soil is destroyed to collapse;
(2) rhone and corrugated steel pipe made of corrugated steel are installed in gutter, strong with adaptation ground deformability
Advantage, it is lower to foundation capability, flatness requirement, be conducive to improve ever-frozen ground, weak soil, swelled ground, collapsible loess
Uneven subsidence existing for equal special foundations structure;
(3) rhone and corrugated steel pipe made of corrugated steel are mainly assembling construction, and in-site installation does not need large size and applies
Construction equipment, with the technical advantage that the construction period is short, easy for installation;
(4) corrugated steel pipe, the rhone made of corrugated steel, size can be customized according to flow, and can be concentrated
The factorial production advantageously reduces cost, controls quality;
(5) corrugated steel pipe, the rhone made of corrugated steel, rigidity is high, and structure is reasonable, and load is evenly distributed,
And there is certain non-deformability, with the characteristic of bit shift compensation in structure, even if foundation soil body has slight deformation,
The proper drainage of corrugated steel pipe and rhone will not be influenced, rainwater will not occur excessive;
(6) corrugated steel pipe and the rhone made of corrugated steel have corrosion resistance after zinc-plated processing, and easy to maintain,
The protection and maintenance that inner wall need to only be carried out, reduces the maintenance cost in later period.
A kind of preferred embodiment, the excavation drainage system include the gutter set on excavation road surface two sides, the excavation
Section is equipped with the drainpipe being connected to gutter with high filling section junction, and the drainpipe is made of corrugated steel pipe;The side
The rhone being adapted to gutter is installed, the rhone is formed by several rhone units are end to end, the draining in ditch
Slot unit includes slot bottom and the cell wall set on slot bottom two sides, and the slot bottom and cell wall are made of corrugated steel.
A kind of preferred embodiment is equipped with sealing structure between adjacent row sink unit.
A kind of preferred embodiment, the cell wall and slot bottom of the rhone unit are integrally formed.
A kind of preferred embodiment, the design seperated with slot bottom of the cell wall of the rhone unit, the cell wall and slot bottom connect
It meets place and is equipped with sealing structure.
A kind of preferred embodiment, the rhone be equipped with several reinforcing ribs being laterally extended, the two of the reinforcing rib
End is fixedly connected at the top of the two sides cell wall of rhone respectively.
A kind of preferred embodiment, the drainpipe are formed by several draining pipe units are end to end, adjacent row water pipe
Sealing structure is equipped between unit.
A kind of preferred embodiment, the corner position of the drainpipe or easy blocking position are equipped with access hole.
Another preferred embodiment, a kind of road drainage system, including at least the rhone for being adapted to gutter,
The rhone is formed by several rhone units are end to end, and the rhone unit includes slot bottom and set on slot bottom two sides
Cell wall, the slot bottom and cell wall are made of corrugated steel.
A kind of preferred embodiment further includes the drainpipe that catchments for intersecting and being connected to the rhone, the drainpipe
It is made of corrugated stainless steel tubing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the high filling section of highway in the prior art;
Fig. 2 is the structural schematic diagram in the excavation section of highway in the prior art;
Fig. 3 is the structural schematic diagram of the high filling section of one high speed highway of embodiment;
Fig. 4 is the structural schematic diagram of rhone in high filling section shown in Fig. 3.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "inner", "outside" etc. indicate
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch
It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation,
Therefore it is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, is integrally connected, may be a detachable connection;It can be with
It is the connection inside two elements;It can be directly connected, it can also indirectly connected through an intermediary, for the general of this field
For logical technical staff, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment one
A kind of express highway of the present embodiment has high filling section as shown in Figure 3 and excavation section, this is novel
Highway has corresponding high roadbed drainage system and excavation drainage system.
Wherein high filling section is as shown in figure 3, have high-fill roadbed 10 and high roadbed road surface 11, the high roadbed road surface 11
Two sides close to edge be equipped with along road length direction extend block water band 12, at intervals set on blocking water band 12
There is a discharge outlet 13.Preferably, the spacing between the adjacent row mouth of a river is 20~25m in the present embodiment.
As the maximum improvement of the present embodiment, as shown in figure 3, the express highway has overturned traditional high roadbed draining system
The design concept of system is provided with gutter 30 in the outside for blocking water band, which is used to carry out the rainwater on high roadbed road surface
Centralized collection.After centralized collection, low-lying place is emitted into via the concentration of drainpipe 60.
The mode of the hidden draining of centralization, can be effectively prevented the excessive intrusion roadbed soil property of rainwater after this rainwater-collecting,
And then prevent because rainwater it is excessive caused by destroy subgrade soil structure even subgrade soil collapse.
On the basis of above structure, in the present embodiment, the rhone 40 being adapted to gutter is mounted in gutter 30, it should
Rhone 40 is formed by several rhone units are end to end, also, passes through sealant, gasket between adjacent row sink unit
Or other conventional, suitable sealing means are sealed, to prevent interface leak.Wherein, rhone unit includes slot bottom
41 and the cell wall 42 set on slot bottom two sides.It should be noted that cell wall 42 can be both integrally formed with slot bottom 41, it can also be seperated
It is fixed together after design by modes such as bolt, welding.
Preferably, in the present embodiment, as shown in figure 4, cell wall 42 is seperated design with slot bottom 41.Wherein cell wall 42 has
Have for connect with slot bottom 41 it is lower along 43 and for overlap gutter side high roadbed road surface on along 44.Wherein, cell wall 42
It is lower to be sealed between 43 and slot bottom 41 by sealant, gasket or other conventional, suitable sealing means, to prevent
Junction leak.
Another important improvements as the present embodiment, wherein cell wall 42 is made with slot bottom 41 of corrugated steel, draining
Pipe is made of corrugated steel pipe.The purpose of such setting is based on corrugated steel and corrugated steel pipe rigidity height, there is non-deformability
And the characteristic of bit shift compensation, it is adapted to certain foundation deformation, it is lower to foundation capability, flatness requirement, favorably
The uneven subsidence existing for the special foundations structures such as improvement ever-frozen ground, weak soil, swelled ground, collapsible loess.Even if
Foundation soil body has slight deformation, will not influence the proper drainage of corrugated steel pipe and rhone, and rainwater will not occur outer
It overflows.
In addition, corrugated steel pipe, the rhone made of corrugated steel, size can be customized according to flow, and can be collected
Middle the factorial production, predominantly assembling construction, in-site installation does not need heavy construction equipment when construction, has at low cost, construction
Short time limit, technical advantage easy for installation.
As another improvements of the present embodiment, several reinforcing ribs being laterally extended wherein are additionally provided on rhone 40
50, the both ends of the reinforcing rib 50 are fixedly connected at the top of the two sides cell wall of rhone respectively.The purpose of such setting is, can
Effectively to enhance the rigidity and non-deformability of rhone, so that the better reliability of high roadbed drainage system, longer life expectancy.
Preferably, drainpipe 60 is equally formed by several draining pipe units are end to end, and adjacent row in the present embodiment
With sealant, gasket or other conventional, suitable sealing structures between header units.Also, in turning for drainpipe 60
Point position or easy blocking position are additionally provided with access hole, to facilitate dredging and maintenance.
Embodiment two
The express highway of the present embodiment, it is shown in Fig. 2 on the basis of the high filling section described in embodiment one
In excavation section, rhone 40 made of corrugated steel as described in embodiment one are again provided in gutter 30.In addition, in
The intersection of high-fill roadbed 10 and cut subgrade 20 is again provided with the drainpipe of the draining of the centralization made of corrugated steel pipe.
In the present embodiment, in high roadbed drainage system and excavation drainage system, the draining made of corrugated steel that is all made of
The drainpipe of slot and the draining of the centralization made of corrugated steel pipe, further improves drainage performance and the safety of highway
Can, be adapted to more landform, it is lower to foundation capability, flatness requirement, be conducive to improve ever-frozen ground, weak soil,
Uneven subsidence existing for the special foundations structure such as swelled ground, collapsible loess.Even if foundation soil body has slight deformation,
The proper drainage of corrugated steel pipe and rhone will not be influenced, rainwater will not occur excessive.
Embodiment three
A kind of road drainage system of the present embodiment has the rhone 40 for being used to be adapted to gutter as shown in Figure 4,
The rhone 40 is formed by several rhone units are end to end, also, passes through sealant, sealing between adjacent row sink unit
Pad or other conventional, suitable sealing means are sealed, to prevent interface leak.Wherein, rhone unit includes slot
Bottom 41 and cell wall 42 set on slot bottom two sides.It should be noted that cell wall 42 can be both integrally formed with slot bottom 41, can also divide
It is fixed together after body design by modes such as bolt, welding.
Preferably, in the present embodiment, as shown in figure 4, cell wall 42 is seperated design with slot bottom 41.Wherein cell wall 42 has
Have for connect with slot bottom 41 it is lower along 43 and for overlap gutter side high roadbed road surface on along 44.Wherein, cell wall 42
It is lower to be sealed between 43 and slot bottom 41 by sealant, gasket or other conventional, suitable sealing means, to prevent
Junction leak.
It should be strongly noted that slot bottom and cell wall are made of corrugated steel in the present embodiment.Based on corrugated steel rigidity
The high, characteristic with non-deformability and bit shift compensation, is adapted to certain foundation deformation, to foundation capability, puts down
Whole degree requires lower, is adapted to the highway drainage of various landform, applied widely.
Further, since its size can be customized according to flow, and can carry out concentration the factorial production, when construction, is predominantly spelled
Dress construction, in-site installation do not need heavy construction equipment, with technical advantage at low cost, the construction period is short, easy for installation.
On the basis of the rhone of above-mentioned adaptation gutter, the drainpipe made of steel ripple text pipe can also be set, and it is upper
Drain sink use is stated, central drainage is used for, there is hidden draining, the advantage for preventing discharge water excessive.In addition, being based on steel wave
The characteristic of the non-deformability of line pipe and certain bit shift compensation is adapted to certain earth's surface deformation, to guarantee to drain
The reliability of system.
In short, the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not intended to limit the invention, it is all in the present invention
Spirit and principle within made any modifications, equivalent replacements, and improvements etc., should be included in protection scope of the present invention it
It is interior.
Claims (10)
1. a kind of express highway, includes at least high filling section and excavation section, the high filling section is equipped with high roadbed
Drainage system, the excavation section are equipped with excavation drainage system, which is characterized in that the high roadbed drainage system includes along length
The drainpipe that direction is set to the gutter of high roadbed road surface two sides and is connected on the outside of gutter with gutter, the drainpipe is by steel
Bellows is made;The high roadbed road surface is equipped with along its length close to the position of gutter blocks water band, and the water band that blocks is equipped with
Several discharge outlet towards gutter are equipped with the rhone being adapted to gutter in the gutter, and the rhone is by several drainings
Slot unit is end to end to be formed, and the rhone unit includes slot bottom and the cell wall set on slot bottom two sides, the slot bottom and cell wall
It is made of corrugated steel.
2. express highway described in accordance with the claim 1, which is characterized in that the excavation drainage system includes being set to excavation
The gutter of road surface two sides, the excavation section are equipped with the drainpipe being connected to gutter, the draining with high filling section junction
Pipe is made of corrugated steel pipe;The rhone being adapted to gutter is installed, the rhone is by several rhone lists in the gutter
Member is end to end to be formed, and the rhone unit includes slot bottom and the cell wall set on slot bottom two sides, the slot bottom and cell wall by
Corrugated steel is made.
3. express highway according to claim 1 or 2, which is characterized in that be equipped between adjacent row sink unit close
Seal structure.
4. express highway described in accordance with the claim 3, which is characterized in that the cell wall and slot bottom one of the rhone unit
It is body formed.
5. express highway described in accordance with the claim 3, which is characterized in that the cell wall and slot bottom point of the rhone unit
Body design, the cell wall and slot bottom junction are equipped with sealing structure.
6. according to express highway described in claims 1 or 2 or 4 or 5, which is characterized in that if the rhone is equipped with
The dry reinforcing rib being laterally extended, the both ends of the reinforcing rib are fixedly connected at the top of the two sides cell wall of rhone respectively.
7. according to express highway described in claims 1 or 2 or 4 or 5, which is characterized in that the drainpipe is by several
Pipe unit is end to end forms for draining, and sealing structure is equipped between adjacent drainage channel pipe unit.
8. express highway according to claim 7, which is characterized in that the corner position of the drainpipe or easily blocking
Position is equipped with access hole.
9. a kind of road drainage system, which is characterized in that including at least the rhone for being adapted to gutter, the rhone
It is formed by several rhone units are end to end, the rhone unit includes slot bottom and the cell wall set on slot bottom two sides, described
Slot bottom and cell wall are made of corrugated steel.
10. road drainage system according to claim 9, which is characterized in that further include intersecting and connecting with the rhone
The logical drainpipe that catchments, the drainpipe are made of corrugated stainless steel tubing.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910291305.5A CN109914182A (en) | 2019-04-11 | 2019-04-11 | A kind of road drainage system and express highway |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910291305.5A CN109914182A (en) | 2019-04-11 | 2019-04-11 | A kind of road drainage system and express highway |
Publications (1)
Publication Number | Publication Date |
---|---|
CN109914182A true CN109914182A (en) | 2019-06-21 |
Family
ID=66969542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910291305.5A Pending CN109914182A (en) | 2019-04-11 | 2019-04-11 | A kind of road drainage system and express highway |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109914182A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112647400A (en) * | 2021-01-20 | 2021-04-13 | 佛山市交通科技有限公司 | Processing method for additionally-paved and improved road surface water retaining ditch |
CN115387171A (en) * | 2022-08-15 | 2022-11-25 | 广东省建筑工程机械施工有限公司 | Road high fill district construction drainage structures |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110117495A (en) * | 2010-04-21 | 2011-10-27 | (주)콘스타 | Curb having a drain hole |
CN204898464U (en) * | 2015-07-23 | 2015-12-23 | 河南中原高速公路股份有限公司 | Highway curb drainage device |
KR20160075179A (en) * | 2014-12-19 | 2016-06-29 | 서기문 | Road gutter with a corrugated steel pipe |
CN207003450U (en) * | 2017-04-28 | 2018-02-13 | 张朝晖 | A kind of hydrophobic bank protection of express highway roadbed greening |
CN109024146A (en) * | 2018-07-21 | 2018-12-18 | 四川启创建设工程有限公司 | Expressway slope discharge structure |
-
2019
- 2019-04-11 CN CN201910291305.5A patent/CN109914182A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20110117495A (en) * | 2010-04-21 | 2011-10-27 | (주)콘스타 | Curb having a drain hole |
KR20160075179A (en) * | 2014-12-19 | 2016-06-29 | 서기문 | Road gutter with a corrugated steel pipe |
CN204898464U (en) * | 2015-07-23 | 2015-12-23 | 河南中原高速公路股份有限公司 | Highway curb drainage device |
CN207003450U (en) * | 2017-04-28 | 2018-02-13 | 张朝晖 | A kind of hydrophobic bank protection of express highway roadbed greening |
CN109024146A (en) * | 2018-07-21 | 2018-12-18 | 四川启创建设工程有限公司 | Expressway slope discharge structure |
Non-Patent Citations (1)
Title |
---|
王萌: "陕北黄土地区公路排水新型式与新材料研究", 《中国学位论文全文数据库》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112647400A (en) * | 2021-01-20 | 2021-04-13 | 佛山市交通科技有限公司 | Processing method for additionally-paved and improved road surface water retaining ditch |
CN115387171A (en) * | 2022-08-15 | 2022-11-25 | 广东省建筑工程机械施工有限公司 | Road high fill district construction drainage structures |
CN115387171B (en) * | 2022-08-15 | 2023-09-08 | 广东省建筑工程机械施工有限公司 | High-fill area construction drainage structure of road |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN105927272A (en) | Floor anchoring constraint tunnel lining structure | |
CN109371918B (en) | Dam structure with permanent combination of multifunctional drainage box culvert and construction method thereof | |
CN109914182A (en) | A kind of road drainage system and express highway | |
CN215329049U (en) | Track structure with drainage pump station in integral ballast bed | |
CN214737362U (en) | Bridge floor drainage collecting system through expansion joint | |
CN214887086U (en) | Slope debris flow guide-discharge type open cut tunnel structure | |
CN209482261U (en) | With the dam structure faced forever in conjunction with multi-functional drainage box culvert | |
CN213571373U (en) | A road bed drainage structures for highway section is richened to groundwater | |
CN212477468U (en) | Canopy-free large-gradient railway tunnel sectional intercepting drainage system | |
CN215290202U (en) | Underground space excavation closure flow guide structure containing inland river channel | |
CN112922670B (en) | Visual and maintainable type anti-clogging drainage system for highway tunnel | |
CN215252077U (en) | Telescopic seam type road surface drainage device | |
CN212104428U (en) | Water seepage drain pipe | |
CN207739096U (en) | A kind of pavement of road gutter of side wall infiltration | |
KR200259242Y1 (en) | Underwater handing structure of swampy land | |
CN111472290A (en) | Canopy-free large-gradient railway tunnel sectional intercepting drainage system | |
KR100776621B1 (en) | Pile structure for preventing a disaster by debris flow | |
CN216474591U (en) | Long-distance anti-seepage culvert structure | |
CN214530031U (en) | Road surface drainage structure | |
CN220266794U (en) | Ventilation structure of drainage system | |
CN217150325U (en) | Earthwork foundation ditch escape canal structure | |
CN210975424U (en) | Novel combined type water guiding ditch structure | |
CN111910730B (en) | Municipal drainage ditch and construction method thereof | |
CN219117856U (en) | Asphalt paving structure with high water permeability | |
CN213417499U (en) | Protection structure based on reconstruction is raised on road surface |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |
|
RJ01 | Rejection of invention patent application after publication |