CN109914568A - A kind of structure that Cut-off ditch is connected with inspection shaft - Google Patents
A kind of structure that Cut-off ditch is connected with inspection shaft Download PDFInfo
- Publication number
- CN109914568A CN109914568A CN201910261201.XA CN201910261201A CN109914568A CN 109914568 A CN109914568 A CN 109914568A CN 201910261201 A CN201910261201 A CN 201910261201A CN 109914568 A CN109914568 A CN 109914568A
- Authority
- CN
- China
- Prior art keywords
- grid
- energy dissipation
- inspection shaft
- dissipation tank
- ladder
- 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
- Sewage (AREA)
Abstract
The present invention relates to the structures that a kind of Cut-off ditch is connected with inspection shaft, belong to field of urban drainage comprising drop ladder, energy dissipation tank, grid, connecting tube and inspection shaft；According to upstream and downstream sequence, setting drop ladder, energy dissipation tank, grid, connecting tube, the drop ladder is gradually to open section from top to bottom；The energy dissipation tank is located at below drop ladder, and the grid is fixed in the card slot formed in barricade by being inserted into；Connecting tube and energy dissipation tank are flushed using tube bottom, and for the connecting tube between grid and inspection shaft, the rainwater on massif surface first passes through drop ladder, energy dissipation tank, grid, are discharged into inspection shaft finally by connecting tube.Present invention reduces heavy rains to the souring of downstream structures, reduces destruction, the final effective rainwash for excluding massif surface；The structure being connected by Cut-off ditch with inspection shaft, the effective storm runoff for intercepting massif surface and being formed, has the characteristics that structure is simple, easy to maintain, economic and practical, effect is brilliant.
Description
Technical field
The present invention relates to the structures that a kind of Cut-off ditch is connected with inspection shaft, belong to municipal drainage technical field.
Background technique
Drainage system is one of city main foundation facility, its construction be directly related to the speed of urban construction and development,
Economic benefit and environmental benefit in coverage, play an important role in social sustainable development.Due to Mountain Urban Area
Shape is complicated, and urban road slope change is larger, and the setting of drainage pipeline is by the structure types such as landform, viaduct, underpasses and friendship
Often there is seeping phenomenon, have severely impacted traffic in the restriction of the factors such as logical safety devices, urban road.Therefore, to mountain area
The design optimization of urban drainage pipeline carries out explore and study, and being allowed to more rational is just particularly important.Mountainous City draining
Engineering is safely and effectively to exclude urban rainwater rationally to handle and comprehensively utilize municipal sewage, and elimination city flood is target, really
Determine Urban Drainage System, arranges and build job facilities and the pipe networks such as all kinds of stain diseases, the collection of rainwater, conveying, processing, discharge
System is the important infrastructure in city.The most backer face in Mountainous City river, sewage and rainwater treatment are improper, directly affect water
Domain-functionalities and urban safety.Sewerage System of Mountainous City mainly includes sanitary sewage, industrial wastewater and drainage system against rain.Mountainous region
The city city gradient is big, and site coverage is higher mostly, the main feature of drainage system are as follows:
(1) with a varied topography: the general relief in city, road grade is big, barrier between different departments is serious, frequently forms various different elevations
Tableland, and each tableland ground elevation difference it is larger；Geological conditions changes greatly especially in land control flat field engineering,
" big dig is filled out greatly " phenomenon is very universal, and the difference of formed Geological condition is quite unfavorable to the longitudinal stability of drainage pipeline,
Differential settlement easily occurs.
(2) midway pumping plant is more: in sewage network planning and designing, since topographical elevation difference is big, making sewage lifting pump station
Difficulty is arranged to increase.
(3) rainwater, effluent flow rate are high: urban district geological conditions is extremely complex, and cheuch hills interlocks, and steep bank ladder access is more, dirty
Waterpipe and storm sewer flow velocity are higher, and the safety and stability of pipeline is made to require to improve；(4) pipeline laying mode is varied, pipe
The aerial laying in road is a big feature, and section of tubing buried depth is very big in buried-pipe laying drainage pipeline, while it is vertical water flow often occur
The case where falling.It is big for Mountainous City topographical elevation difference, road longitudinal grade is big, the features such as complex geologic conditions, exceptional structure is such as
Energy dissipating well, staged fall cut, inclined tube-type falls etc. in Sewerage System of Mountainous City using commonplace.
Summary of the invention
The present invention is built by the mountain for the Cut-off ditch of massif in the prior art, outlet often there are two types of: neighbouring water body and city
City's drainage system, Cut-off ditch system often adhere to separately with sewerage system independently, and there has been no the knots of two kinds of system connectivities at present
Structure causes part Cut-off ditch that can not effectively enter sewerage system, thus the outlet that Cut-off ditch is not final, energy of the present invention
It is connected for mountain area Cut-off ditch and sewerage system, energy dissipating is carried out to the water of Cut-off ditch, is slowed down, city row is entered back into
Water system reduces washing away for subsequent pipeline, sufficiently intercepts massif rainfall runoff, finds final outlet for massif runoff, reduces
Heavy rain reduces destruction to the souring of downstream structures, the final effective rainwash for excluding massif surface.
According to technical solution provided by the invention, a kind of structure that Cut-off ditch is connected with inspection shaft, it is characterized in that: including falling
Water ladder, energy dissipation tank, grid, connecting tube and inspection shaft；According to upstream and downstream sequence, setting drop ladder, energy dissipation tank, grid, company
Adapter tube, the drop ladder is gradually to open section from top to bottom, and width gradually increases；The energy dissipation tank is located at below drop ladder, institute
It is fixed in the card slot formed in barricade by being inserted into state grid；Connecting tube and energy dissipation tank are flushed using tube bottom, the connecting tube
Between grid and inspection shaft, the rainwater on massif surface first passes through drop ladder, energy dissipation tank, grid, finally by connecting tube
It is discharged into inspection shaft.
As a further improvement of the present invention, the drop ladder is n grades of concrete or stone matter ladder, every grade of ladder height
For 300mm, width 150mm.
As a further improvement of the present invention, the energy dissipating pool structure is armored concrete or lithoidite texture.
As a further improvement of the present invention, the grid is web plate grid, web plate grid with a thickness of 150 ~ 200mm,
Width is 1000 ~ 1200mm, and grid gap is 5 ~ 10mm, and energy Littoral Barrier and sundries enter inspection shaft.
As a further improvement of the present invention, the card slot width is greater than the width of web plate grid, and the card slot width is
200 ~ 250mm, the depth of rebate of the card slot are 150 ~ 200mm.
A kind of structure that Cut-off ditch is connected with inspection shaft, it is characterized in that: including drop ladder, energy dissipation tank, grid, baffle wall style
And slab culvert, according to upstream and downstream sequence, setting drop ladder, energy dissipation tank, grid, baffle wall style and slab culvert, the drop ladder
From top to bottom gradually to open section, width is gradually increased；The energy dissipation tank is located at below drop ladder, and the grid passes through insertion barricade
It is fixed in the card slot of middle formation；Baffle wall style is connected to energy dissipation tank, and the energy dissipation tank is connected to slab culvert below ground, massif table
The rainwater in face first passes through drop ladder, energy dissipation tank, grid, is finally discharged into slab culvert.
As a further improvement of the present invention, the baffle wall style height is 400mm, and pouring water for φ 100mm is arranged in lower end
Hole is used for the draining of energy dissipation tank.
Compared with the prior art the present invention has the advantage that
(1) present invention can be used for mountain area Cut-off ditch and sewerage system is connected, and carry out energy dissipating to the water of Cut-off ditch, subtract
Speed enters back into sewerage system, reduces washing away for subsequent pipeline, sufficiently intercepts massif rainfall runoff, finds for massif runoff
Final outlet has the characteristics that structure is simple, easy for construction, stable.
(2) present invention is connected for mountain area Cut-off ditch and sewerage system, and the water of Cut-off ditch is ultimately discharged into
Sewerage system avoids directly entering river, reduces the pollution to water body.
(3) present invention is connected for mountain area Cut-off ditch and sewerage system, structure is simple, convenient operation and management,
It is stable, especially in the massif Cut-off ditch regulation at sewerage system edge.
Detailed description of the invention
Fig. 1 is the Cut-off ditch of the embodiment of the present invention one and the section layout drawing of inspection shaft connected structure.
Fig. 2 is the top view of Cut-off ditch and inspection shaft connected structure in Fig. 1.
Fig. 3 is the Cut-off ditch of the embodiment of the present invention two and the section layout drawing of inspection shaft connected structure.
Fig. 4 is the top view of Cut-off ditch and inspection shaft connected structure in Fig. 3.
Description of symbols: 1- drop ladder, 2- gradually open section, 3- energy dissipation tank, 4- grid, 5- barricade, 6- mountain slope toe line/
Pavement outer edge, 7- connecting tube, the ground 8-, 9- inspection shaft, 10- baffle wall style, 11- slab culvert.
Specific embodiment
The present invention will be further described in conjunction with the embodiment in attached drawing below:
Embodiment 1
As Figure 1-Figure 2, the structure that a kind of Cut-off ditch is connected with inspection shaft, comprising: drop ladder 1 gradually opens section 2, energy dissipation tank
3, grid 4, barricade 5, mountain slope toe line/pavement outer edge 6, connecting tube 7, ground 8, inspection shaft 9.It is wanted according to engineering design
It asks, handles the Cut-off ditch runoff of certain massif, treatment scale 60L/s.The storm runoff on massif surface from massif take volume and under, it is first
Drop ladder, followed by energy dissipation tank 3, grid 4 are first passed through, is finally that inspection shaft is discharged by connecting tube 7.
According to upstream and downstream sequence, first setting drop ladder 1, energy dissipation tank 3, grid 4 and connecting tube 7.
The series of the drop ladder 1 is determined according to energy dissipating ability；In the present embodiment drop ladder be 12 grades of concrete or
Stone matter ladder, every grade of ladder height are 300mm, and width 150mm, ladder total height is 3.6m, width 1.8m, using C30
Plain concrete, and the ladder that drops is gradually to open section 2 from top to bottom, width gradually increases；Width is increased to by 400mm in the present embodiment
1000mm.The energy dissipation tank 3 is located at 1 lower section of drop ladder, and 3 length of energy dissipation tank is 1000mm, and width 1000mm is highly
1000mm, the energy dissipation tank 3 are mainly that storm runoff reduces flow velocity again, and primary structure is armored concrete or stone matter；Disappear
The pool capacity in energy pond 3 can satisfy the digestion capability of massif storm runoff, can increase baffle wall style when necessary.Barricade 5 is mixed using reinforcing bar
Solidifying soil or lithoidite texture, have certain erosion resistibility.The grid 4 is fixed in the card slot formed in barricade 5 by being inserted into,
Card slot width is greater than the width of web plate grid；The card slot width is 200mm, and the depth of rebate of card slot is 150mm.The lattice
Grid 4 are web plate grid, and grid gap is 10mm, effectively Littoral Barrier and sundries can enter inspection shaft, while not influencing to drop
The discharge capacity of rain runoff.Web plate grid uses tube bottom with a thickness of 150mm, width 1200mm, connecting tube 7 and energy dissipation tank 3
It flushes, biexhaust pipe can be added when necessary and increase discharge capacity.Energy dissipation tank, grid, connecting tube, inspection shaft are able to satisfy storm runoff
Discharge capacity；Inspection shaft 9 is located at 8 lower section of ground, and for connecting tube 7 between grid 4 and inspection shaft 9, caliber can satisfy mountain
Body runoff discharge capacity, eventually enters into inspection shaft for runoff and provides channel；The rainwater on massif surface first passes through drop ladder 1, disappears
Energy pond 3, grid 4, are discharged into inspection shaft 9 finally by connecting tube 7.The connecting tube 7 uses 2 DN300 pipelines, and inspection shaft is detailed in
" municipal administration drainage channel project and affiliated facility " (06MS201-3).6 slope ratio of mountain slope toe line/pavement outer edge is 1:8, dimension
Hold existing massif status.
A kind of structure that Cut-off ditch is connected with inspection shaft, processing step are as follows:
It cutting request when a. designing according to storm runoff, the return period takes 10 years, and the pipeline of downstream inspection shaft uses DN400 pipeline,
The discharge capacity of downstream inspection shaft need to be greater than the storm runoff amount in upstream Cut-off ditch service range, and massif rainwater accesses road row
When water system, the return period requires value according to flood control；
B. according to upstream and downstream sequence, setting drop ladder 1, energy dissipation tank 3, grid 4, connecting tube 7 are wanted according to storm runoff reduction
It asks, determines the structural parameters of these structures；
According to the sequence in first upstream downstream again when c. constructing, each structures use C30 armored concrete, and barricade part uses
Block stone material matter improves whole erosion resistibility；
D. later period operation and maintenance are that heavy rain later clears up structures, prevent the water of crossing of sundries rubbish blocking structures from leading to
Road.
Embodiment 2
As Figure 3-Figure 4, the structure that a kind of Cut-off ditch is connected with inspection shaft, including drop ladder 1, gradually open section 2, energy dissipation tank 3,
Grid 4, barricade 5, mountain slope toe line/pavement outer edge 6, ground 8, baffle wall style 10 and slab culvert 11.
According to engineering design requirements, being connected between Cut-off ditch and slab culvert, the Cut-off ditch return period takes 10 years, treatment scale
For 60L/s.Compared to embodiment 1, the present embodiment mainly cancels connecting tube 7, increases baffle wall style 10.
According to upstream and downstream sequence, setting drop ladder 1, energy dissipation tank 3, grid 4.The ladder that drops is 12 grades, every grade of ladder height
Degree is 300mm, and width 150mm, ladder total height is 3.6m, width 1.8m, using C30 plain concrete, and the ladder that drops
From top to bottom gradually to open section, width increases to 1000mm by 400mm.The energy dissipation tank 3 is located at 1 lower section of drop ladder, energy dissipation tank 3
Length is 1000mm, width 1000mm, is highly 1000mm.The grid 4 is solid in the card slot formed in barricade 5 by being inserted into
It is fixed；Card slot width is 200mm, and the depth of rebate of card slot is 150mm, web plate grid with a thickness of 150mm, width 1200mm,
The gap of grid is 5 ~ 10mm, and the cross-section of river of 4 rear end of grid is greater than the discharge capacity of DN400 pipeline.
Baffle wall style 10 is connected to energy dissipation tank 3, and 10 height of baffle wall style is 400mm, and the water irrigating hole of lower end setting φ 100mm is used
In the draining of energy dissipation tank 3, the energy dissipation tank 3 is connected to the slab culvert 11 of 8 lower section of ground.The rainwater on massif surface first passes through drop
Ladder 1, energy dissipation tank 3, grid 4, are finally discharged into slab culvert 11.Inspection shaft is detailed in " municipal administration drainage channel project and affiliated facility "
(06MS201-3).6 slope ratio of mountain slope toe line/pavement outer edge is 1:7, maintains existing massif status.
During rainfall, the rainwash of massif surface high flow rate easy to form, high-energy, these rainwashes are first passed around
Drop ladder can slow down, slow down, and secondly by energy dissipation tank, reduction of speed, grid filtration fall the silt carried in precipitation, sundries etc. again,
Last precipitation drains into inspection shaft by connecting tube and enters in neighbouring water body.This configuration reduces heavy rains to rush downstream structures
Brush effect, reduces destruction, the final effective rainwash for excluding massif surface.
The present invention passes through the structure that Cut-off ditch is connected with inspection shaft, effectively intercepts the storm runoff that massif surface is formed,
Have the characteristics that structure is simple, easy to maintain, economic and practical, effect is brilliant.
Claims (7)
1. the structure that a kind of Cut-off ditch is connected with inspection shaft, it is characterized in that: including drop ladder (1), energy dissipation tank (3), grid
(4), connecting tube (7) and inspection shaft (9)；According to upstream and downstream sequence, setting drop ladder (1), grid (4), connects energy dissipation tank (3)
It takes over (7), from top to bottom gradually to open section (2), width gradually increases the drop ladder (1)；The energy dissipation tank (3) is located at drop
Below ladder (1), the grid (4) is fixed in the card slot by formation in insertion barricade (5)；Connecting tube (7) and energy dissipation tank (3)
It is flushed using tube bottom, the connecting tube (7) is located between grid (4) and inspection shaft (9), and the rainwater on massif surface, which first passes through, to fall
Water ladder (1), energy dissipation tank (3), grid (4) are discharged into inspection shaft (9) finally by connecting tube (7).
2. a kind of structure that Cut-off ditch is connected with inspection shaft as described in claim 1, it is characterized in that: the drop ladder (1)
For n grades of concrete or stone matter ladder, every grade of ladder height is 300mm, width 150mm.
3. a kind of structure that Cut-off ditch is connected with inspection shaft as described in claim 1, it is characterized in that: the energy dissipation tank (3) is tied
Structure is armored concrete or lithoidite texture.
4. a kind of structure that Cut-off ditch is connected with inspection shaft as described in claim 1, it is characterized in that: the grid (4) is net
Panel grid, web plate grid with a thickness of 150 ~ 200mm, width is 1000 ~ 1200mm, and grid (4) gap is 5 ~ 10mm, can be intercepted
Silt and sundries enter inspection shaft (9).
5. a kind of structure that Cut-off ditch is connected with inspection shaft as described in claim 1, it is characterized in that: the card slot width is greater than
The width of web plate grid, the card slot width are 200 ~ 250mm, and the depth of rebate of the card slot is 150 ~ 200mm.
6. the structure that a kind of Cut-off ditch is connected with inspection shaft, it is characterized in that: including drop ladder (1), energy dissipation tank (3), grid
(4), baffle wall style (10) and slab culvert (11), according to upstream and downstream sequence, setting drop ladder (1), energy dissipation tank (3), grid (4),
Baffle wall style (10) and slab culvert (11), from top to bottom gradually to open section (2), width gradually increases the drop ladder (1)；It is described to disappear
Energy pond (3) is located at below drop ladder (1), and the grid (4) is fixed in the card slot formed in barricade (5) by being inserted into；Disappear power
Bank (10) is connected to energy dissipation tank (3), and the energy dissipation tank (3) is connected to the slab culvert (11) below ground (8), the rain on massif surface
Water first passes through drop ladder (1), energy dissipation tank (3), grid (4), is finally discharged into slab culvert (11).
7. a kind of structure that Cut-off ditch is connected with inspection shaft as claimed in claim 6, it is characterized in that: the baffle wall style (10) is high
Degree is 400mm, and lower end is provided with draining of the water irrigating hole for energy dissipation tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261201.XA CN109914568A (en) | 2019-04-02 | 2019-04-02 | A kind of structure that Cut-off ditch is connected with inspection shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910261201.XA CN109914568A (en) | 2019-04-02 | 2019-04-02 | A kind of structure that Cut-off ditch is connected with inspection shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109914568A true CN109914568A (en) | 2019-06-21 |
Family
ID=66968224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910261201.XA Pending CN109914568A (en) | 2019-04-02 | 2019-04-02 | A kind of structure that Cut-off ditch is connected with inspection shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109914568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499769A (en) * | 2019-08-09 | 2019-11-26 | 中建三局第一建设工程有限责任公司 | Neighbouring superelevation massif side slope foundation pit cuts drainage and construction method |
| CN114482190A (en) * | 2022-02-07 | 2022-05-13 | 兰州理工大学白银新材料研究院 | Rainwater collection and utilization device with water-sand separation function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349048A (en) * | 2008-09-04 | 2009-01-21 | 四川大学 | Full section ladder energy dissipater |
| CN202466542U (en) * | 2012-01-20 | 2012-10-03 | 贵州省水利水电勘测设计研究院 | Roller compacted concrete gravity dam step-gradient-type spillway |
| CN204738377U (en) * | 2015-06-15 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Baffle baffling formula energy dissipation drop well |
| JP2017082465A (en) * | 2015-10-27 | 2017-05-18 | 積水化学工業株式会社 | Energy dissipation pipe |
| CN206646360U (en) * | 2017-03-23 | 2017-11-17 | 孙振 | Mountain road drainage system |
| CN208039174U (en) * | 2018-04-03 | 2018-11-02 | 三峡大学 | Flume steep slope section energy dissipater |
-
2019
- 2019-04-02 CN CN201910261201.XA patent/CN109914568A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101349048A (en) * | 2008-09-04 | 2009-01-21 | 四川大学 | Full section ladder energy dissipater |
| CN202466542U (en) * | 2012-01-20 | 2012-10-03 | 贵州省水利水电勘测设计研究院 | Roller compacted concrete gravity dam step-gradient-type spillway |
| CN204738377U (en) * | 2015-06-15 | 2015-11-04 | 中铁第四勘察设计院集团有限公司 | Baffle baffling formula energy dissipation drop well |
| JP2017082465A (en) * | 2015-10-27 | 2017-05-18 | 積水化学工業株式会社 | Energy dissipation pipe |
| CN206646360U (en) * | 2017-03-23 | 2017-11-17 | 孙振 | Mountain road drainage system |
| CN208039174U (en) * | 2018-04-03 | 2018-11-02 | 三峡大学 | Flume steep slope section energy dissipater |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499769A (en) * | 2019-08-09 | 2019-11-26 | 中建三局第一建设工程有限责任公司 | Neighbouring superelevation massif side slope foundation pit cuts drainage and construction method |
| CN114482190A (en) * | 2022-02-07 | 2022-05-13 | 兰州理工大学白银新材料研究院 | Rainwater collection and utilization device with water-sand separation function |
| CN114482190B (en) * | 2022-02-07 | 2023-11-17 | 兰州理工大学白银新材料研究院 | Rainwater collection and utilization device with water-sand separation function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109518789B (en) | Water collecting, catchment and drainage treatment system for road to pass through water environment sensitive area | |
| CN104563060A (en) | Embankment integrating functions of river closure, regulation and storage flood drainage as well as method for improving water environment | |
| CN109914568A (en) | A kind of structure that Cut-off ditch is connected with inspection shaft | |
| CN109826065B (en) | High-fill roadbed protection system and construction method thereof | |
| CN106013400A (en) | Integrated pipe network and water storage and drainage system for pavements | |
| CN110172884B (en) | Mountain highway subgrade and construction method | |
| CN215630124U (en) | Urban rainwater pipe gallery | |
| CN211447157U (en) | Sponge urban rainwater drainage system | |
| CN209873485U (en) | Permanent temporary combined toilet structure for gully treatment | |
| CN209873496U (en) | Highway evaporation structure | |
| CN109811612B (en) | Gutter treatment permanent-temporary combined channel structure and construction method thereof | |
| CN110685342A (en) | Rainwater recycling system for sponge city construction | |
| CN113062173B (en) | Construction method for junction of round-way underpass slab bridge and conical slope foundation | |
| CN204940483U (en) | Drainage type rainwater inspection well | |
| CN113430962B (en) | Self-bursting type water passing bridge culvert suitable for area where mountain torrents are easy to occur | |
| Shao et al. | The Causes of Floods and Control Measures during the Rainstorm Period in Cities with Flat Terrain | |
| CN212153647U (en) | Drainage facility suitable for water source area protection district excavation highway section | |
| CN111997163B (en) | Embankment-road integrated engineering cable trench drainage structure and drainage method thereof | |
| Tribhuwana et al. | Analysis of The Carrying Capacity of Urban Drainage Dimensions | |
| CN118390342A (en) | Water passing pavement structure and protection system suitable for crossing debris flow ditch | |
| Das | Hydrology and storm sewer design | |
| Respondek | The problems of maintenance of drainage devices within municipal and district roads | |
| Gupta | The drainage systems of India's cities | |
| Young et al. | First Application of Articulated Concrete Block Armoring with a Stabilized Stone Drainage Layer | |
| Hearn et al. | C6 Slope and Road Drainage |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190621 |