CN107217608A - Town road edge water seepage mechanism and its construction method - Google Patents
Town road edge water seepage mechanism and its construction method Download PDFInfo
- Publication number
- CN107217608A CN107217608A CN201710441634.4A CN201710441634A CN107217608A CN 107217608 A CN107217608 A CN 107217608A CN 201710441634 A CN201710441634 A CN 201710441634A CN 107217608 A CN107217608 A CN 107217608A
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- layer
- concrete
- conduit
- french drain
- cylinder
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F5/00—Draining the sub-base, i.e. subgrade or ground-work, e.g. embankment of roads or of the ballastway of railways or draining-off road surface or ballastway drainage by trenches, culverts, or conduits or other specially adapted means
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/06—Dredgers; Soil-shifting machines mechanically-driven with digging screws
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
- E03F3/043—Partitioned to allow more than one medium to flow through
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Hydrology & Water Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Road Paving Structures (AREA)
- Sewage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of town road edge water seepage mechanism and its construction method, its water seepage mechanism includes french drain raceway groove, the bottom laying concrete supporting layer of french drain raceway groove, collecting conduit is longitudinally placed in french drain raceway groove along french drain raceway groove, and on concrete support layer；Asphalt surface layer above filling pervious concrete layer, pervious concrete layer in french drain raceway groove；Collecting conduit is shaped as cylinder, the conduit pipe of multiple positive six prismsby shapes longitudinally disposed along cylinder is distributed with cylinder, the side wall of cylinder offers several along cylinder circumference and the limbers of genesis analysis, and each limbers is at least connected by water flowing passage with a conduit pipe；Each conduit pipe is at least connected with a conduit pipe adjacent thereto by water flowing passage.The present invention is not only able to make the road surface stable strong above french drain, additionally it is possible to which more traditional french drain increases rainwater discharge dynamics.
Description
Technical field
The present invention relates to town road construction field, more particularly to a kind of town road edge water seepage mechanism and its construction party
Method.
Background technology
Found by the investigation and analysis of urban road drainage system, due to the collecting conduit in road edge water seepage mechanism
Its size is limited, thus in especially southern rainy environment, easily causes collecting conduit than larger in rainfall and have little time row
Water, causes the generation of surface gathered water phenomenon, and now asphalt concrete pavement is due to impeded drainage, can produce depression, cracking, loose
And pit etc.；If however, selecting simple increasing collecting conduit diameter to overcome the limited defect of collecting conduit size
Method, then collecting conduit can be caused to be difficult to load load above the ground and damage, road surface is caused when heavy vehicle is rolled
Collapse.
The content of the invention
The purpose of the present invention be overcome above-mentioned problems of the prior art there is provided a kind of town road edge infiltration it is blind
Ditch and its construction method, are not only able to make the road surface stable strong above french drain, additionally it is possible to which more traditional french drain increases rainwater row
Put dynamics.
The technical scheme is that：Town road edge water seepage mechanism, including french drain raceway groove, the bottom of the french drain raceway groove
Portion's laying concrete supporting layer 4, collecting conduit 1 is longitudinally placed in french drain raceway groove along french drain raceway groove, and positioned at concrete branch
Support on layer 4；Filling pervious concrete layer 3, the top asphalt surface layer 5 of pervious concrete layer 3 in french drain raceway groove；The collection
The water guide for being shaped as being distributed with multiple positive six prismsby shapes longitudinally disposed along cylinder in cylinder, cylinder of waterpipe 1 leads to
Road 1-2, the side wall of the cylinder offers several along cylinder circumference and the limbers 1-4 of genesis analysis, Mei Getong
Water hole 1-4 is at least connected by water flowing passage 1-5 with a conduit pipe 1-2；Each conduit pipe 1-2 at least with one with
Its adjacent conduit pipe 1-2 is connected by water flowing passage 1-5.
It is preferred that the pervious concrete of the pervious concrete layer 3 is mixed by cement and rubble, wherein, cement and
The mass ratio of rubble is 1:8, the particle diameter of rubble is 6-11mm.
It is preferred that the concrete of concrete support layer 4 is made up of cement, sand and rubble, wherein cement, sand and
The mass ratio of rubble is 2:3:2, the particle diameter of rubble is 5-8mm.
It is preferred that wherein setting one on the axis of collecting conduit 1 provided with 7 conduit pipe 1-2 in the collecting conduit 1
Individual conduit pipe 1-2, remaining 6 conduit pipe 1-2 are along the circumferentially distributed of the conduit pipe 1-2 on the axis of collecting conduit 1 so that
Each conduit pipe 1-2 is in cellular distribution on the section of collecting conduit 1.
It is preferred that being also equipped with geotechnological layer of cloth 6 between the pervious concrete layer 3 and asphalt surface course 5.
The construction method of town road edge water seepage mechanism, comprises the following steps：
1) making some collecting conduits 1 and several using concrete material is used to be socketed the adjacent end of collecting conduit 1
The cylindric collecting conduit interfacing part of head；
2) french drain raceway groove is excavated, and is entered in french drain trench bottom laying concrete supporting layer 4, and to concrete support layer 4
Row maintenance 5-8 days, to treat that it solidifies；
3) after the solidification of concrete support layer 4 is good, more piece collecting conduit 1 is layed in french drain raceway groove, while to every section
Collecting conduit 1 winds the gauze for blocking limbers 1-4, and connects adjacent two using the collecting conduit interfacing part and catchment
Pipeline 1；
4) pervious concrete prepared is poured into french drain raceway groove, and uses vibrating spear vibration compacting, forms permeable mixed
Solidifying soil layer 3；
5) the construction asphalt surface course 5 in pervious concrete layer 3, completes construction.
It is preferred that in step 4) after the completion of construction, one layer of geotechnological layer of cloth 6 is first laid in pervious concrete layer 3, then in soil
Construction asphalt surface course 5 on work layer of cloth 6.
It is preferred that step 1) described in use concrete material make the specific method steps of some collecting conduits 1
Including：
A) cylindrical barrel 1-1 is made using concrete material, maintenance treats that it solidifies；
B) positive six prismsby shape cylinder 2 is made using hardboard or three-ply board；Wherein positive six prismsby shape cylinder 2 encloses internal horizontal stroke
Sectional dimension is identical with required conduit pipe 1-2 cross sectional dimensions；
C) the cylindrical barrel 1-1 solidified is planted vertically, multiple positive six prismsby shape cylinders 2 of required quantity is erected
Directly it is planted in the cylindrical barrel 1-1, and by cellular carry out arranged distribution；
D) poured between each positive six prismsby shape cylinder 2 and between positive six prismsby shape cylinder 2 and cylindrical barrel 1-1 mixed
Solidifying soil, maintenance treats that it solidifies；
E) after the concrete setting poured between each positive six prismsby shape cylinder 2 and cylindrical barrel 1-1 is good, remove just
Hexa-prism cylinder 2；
F) circumference and longitudinal direction of the concrete drill hole equipment along cylindrical barrel 1-1 sides wall are used along cylindrical barrel 1-1
Radial direction bore several through holes, form several limbers 1-4 and water flowing passage 1-5 for linking up conduit pipe 1-2.
It is preferred that in step d), before casting concrete, between each positive six prismsby shape cylinder 2 and positive six prismsby shape
Bar-mat reinforcement woven in advance is inserted between cylinder 2 and cylindrical barrel 1-1.
Beneficial effects of the present invention：There is provided a kind of town road edge water seepage mechanism and its construction in the embodiment of the present invention
Method, provides strong due to using heavy in section cellular collecting conduit, therefore being not only able to the road surface above to french drain
Support, additionally it is possible to which more traditional french drain increases rainwater discharge dynamics.The inside that the present invention is provided includes multiple positive six prismsby shapes
The cellular collecting conduit of conduit pipe, its preparation method is simply easily achieved, and possesses very strong practicality.
Brief description of the drawings
Fig. 1 is water seepage mechanism overall structure diagram of the invention；
After Fig. 2 is cylindrical barrel has planted vertically when collecting conduit makes, 7 positive six prismsby shape cylinders are planted in vertically
In cylindrical barrel, and by the schematic top plan view of cellular progress arranged distribution；
Fig. 3 is the schematic diagram after the structure casting concrete in Fig. 2；
Fig. 4 removes the schematic diagram after positive six prismsby shape cylinder for concrete setting in Fig. 3 after good；
Fig. 5 is drilled the structural representation of limbers and water flowing passage for the collecting conduit that solidification has been got well in Fig. 4；
Fig. 6 is the schematic side view for the collecting conduit made.
Embodiment
Below in conjunction with the accompanying drawings, the specific embodiment of the present invention is described in detail, it is to be understood that of the invention
Protection domain do not limited by embodiment.
Referring to Fig. 1, the embodiments of the invention provide a kind of town road edge water seepage mechanism and its construction method, its cities and towns
Road edge water seepage mechanism includes french drain raceway groove, the bottom laying concrete supporting layer 4 of the french drain raceway groove, the edge of collecting conduit 1
French drain raceway groove is longitudinally placed in french drain raceway groove, and on concrete support layer 4；Filling pervious concrete in french drain raceway groove
Layer 3, the top asphalt surface layer 5 of pervious concrete layer 3；The collecting conduit 1 is shaped as cylinder, in cylinder point
It is furnished with the conduit pipe 1-2 of multiple positive six prismsby shapes longitudinally disposed along cylinder, the side wall of the cylinder offers some
It is individual along cylinder circumference and the limbers 1-4 of genesis analysis, each limbers 1-4 by water flowing passage 1-5 at least with one
Conduit pipe 1-2 is connected；Each conduit pipe 1-2 at least passes through water flowing passage with a conduit pipe 1-2 adjacent thereto
1-5 is connected.
Further, the pervious concrete of the pervious concrete layer 3 is mixed by cement and rubble, wherein, cement
Mass ratio with rubble is 1:8, the particle diameter of rubble is 6-11mm.
Further, the concrete of the concrete support layer 4 is made up of cement, sand and rubble, wherein cement, sand
Mass ratio with rubble is 2:3:2, the particle diameter of rubble is 5-8mm.
Further, provided with 7 conduit pipe 1-2 in the collecting conduit 1, set wherein on the axis of collecting conduit 1
One conduit pipe 1-2, remaining 6 conduit pipe 1-2 make along the circumferentially distributed of the conduit pipe 1-2 on the axis of collecting conduit 1
It is in cellular distribution on the section of collecting conduit 1 to obtain each conduit pipe 1-2.
Further, geotechnological layer of cloth 6 is also equipped between the pervious concrete layer 3 and asphalt surface course 5.
The construction method of the town road edge water seepage mechanism of the present invention, comprises the following steps：
1) making some collecting conduits 1 and several using concrete material is used to be socketed the adjacent end of collecting conduit 1
The cylindric collecting conduit interfacing part of head；
2) french drain raceway groove is excavated, and is entered in french drain trench bottom laying concrete supporting layer 4, and to concrete support layer 4
Row maintenance 5-8 days, to treat that it solidifies；
3) after the solidification of concrete support layer 4 is good, more piece collecting conduit 1 is layed in french drain raceway groove, while to every section
Collecting conduit 1 winds the gauze for blocking limbers 1-4, and connects adjacent two using the collecting conduit interfacing part and catchment
Pipeline 1；
4) pervious concrete prepared is poured into french drain raceway groove, and uses vibrating spear vibration compacting, forms permeable mixed
Solidifying soil layer 3；
5) the construction asphalt surface course 5 in pervious concrete layer 3, completes construction.
Further, in step 4) after the completion of construction, first lay one layer of geotechnological layer of cloth 6 in pervious concrete layer 3, then
Construction asphalt surface course 5 on geotechnological layer of cloth 6.
Further, step 1) described in use concrete material make the specific method steps of some collecting conduits 1
Suddenly include：
A) cylindrical barrel 1-1 is made using concrete material, maintenance treats that it solidifies；
B) positive six prismsby shape cylinder 2 is made using hardboard or three-ply board；Wherein positive six prismsby shape cylinder 2 encloses internal horizontal stroke
Sectional dimension is identical with required conduit pipe 1-2 cross sectional dimensions；
C) the cylindrical barrel 1-1 solidified is planted vertically, multiple positive six prismsby shape cylinders 2 of required quantity is erected
Directly it is planted in the cylindrical barrel 1-1, and by cellular carry out arranged distribution, it is shown in Figure 2.
D) poured between each positive six prismsby shape cylinder 2 and between positive six prismsby shape cylinder 2 and cylindrical barrel 1-1 mixed
Solidifying soil (shown in Figure 3), maintenance treats that it solidifies；
E) after the concrete setting poured between each positive six prismsby shape cylinder 2 and cylindrical barrel 1-1 is good, remove just
Hexa-prism cylinder 2, it is shown in Figure 4；
F) circumference and longitudinal direction of the concrete drill hole equipment along cylindrical barrel 1-1 sides wall are used along cylindrical barrel 1-1
Radial direction bore several through holes, form several limbers 1-4 and water flowing passage 1-5 for linking up conduit pipe 1-2, referring to
Shown in Fig. 5, Fig. 6.
Further, in step d), before casting concrete, between each positive six prismsby shape cylinder 2 and positive six prismsby
Bar-mat reinforcement woven in advance is inserted between shape cylinder 2 and cylindrical barrel 1-1.
In summary, the present invention is provided a kind of town road edge water seepage mechanism and its construction method, due to what is used
It is heavy in section cellular collecting conduit, therefore the strong support of the offer of the road surface above to french drain is provided, additionally it is possible to relatively passes
The french drain of system increases rainwater discharge dynamics.The inside that the present invention is provided includes the cellular of the conduit pipe of multiple positive six prismsby shapes
Collecting conduit, its preparation method is simply easily achieved, and possesses very strong practicality.
Disclosed above is only several specific embodiments of the present invention, and still, the embodiment of the present invention is not limited to this, is appointed
What what those skilled in the art can think change should all fall into protection scope of the present invention.
Claims (9)
1. town road edge water seepage mechanism, including french drain raceway groove, it is characterised in that the bottom laying coagulation of the french drain raceway groove
Native supporting layer (4), collecting conduit (1) is longitudinally placed in french drain raceway groove along french drain raceway groove, and positioned at concrete support layer (4)
On；Asphalt surface layer (5) above filling pervious concrete layer (3) in french drain raceway groove, the pervious concrete layer (3)；
Multiple positive six ribs longitudinally disposed along cylinder are distributed with being shaped as of the collecting conduit (1) in cylinder, cylinder
The conduit pipe (1-2) of column, the side wall of the cylinder offers several along the logical of cylinder circumference and genesis analysis
Water hole (1-4), each limbers (1-4) is at least connected by water flowing passage (1-5) with a conduit pipe (1-2)；Each
Conduit pipe (1-2) is at least connected with a conduit pipe (1-2) adjacent thereto by water flowing passage (1-5).
2. town road edge water seepage mechanism as claimed in claim 1, it is characterised in that the pervious concrete layer (3)
Pervious concrete is mixed by cement and rubble, wherein, the mass ratio of cement and rubble is 1:8, the particle diameter of rubble is 6-
11mm。
3. town road edge water seepage mechanism as claimed in claim 1, it is characterised in that the concrete support layer (4)
Concrete is made up of cement, sand and rubble, and wherein the mass ratio of cement, sand and rubble is 2:3:2, the particle diameter of rubble is 5-
8mm。
4. town road edge water seepage mechanism as claimed in claim 1, it is characterised in that 7 are provided with the collecting conduit (1)
One conduit pipe (1-2), remaining 6 conduit pipe are set on individual conduit pipe (1-2), the wherein axis of collecting conduit (1)
(1-2) is circumferentially distributed along the conduit pipe (1-2) on collecting conduit (1) axis so that each conduit pipe (1-2) is in collector pipe
It is in cellular distribution on the section in road (1).
5. town road edge water seepage mechanism as claimed in claim 1, it is characterised in that the pervious concrete layer (3) and
Geotechnological layer of cloth (6) is also equipped between asphalt surface course (5).
6. the construction method of town road edge water seepage mechanism, it is characterised in that comprise the following steps：
1) making some collecting conduits (1) and several using concrete material is used to be socketed adjacent collecting conduit (1) end
The cylindric collecting conduit interfacing part of head；
2) french drain raceway groove is excavated, and is entered in french drain trench bottom laying concrete supporting layer (4), and to concrete support layer (4)
Row maintenance 5-8 days, to treat that it solidifies；
3) after concrete support layer (4) solidification is good, more piece collecting conduit (1) is layed in french drain raceway groove, while to every section
Collecting conduit (1) winds the gauze for blocking limbers (1-4), and adjacent two using collecting conduit interfacing part connection
Collecting conduit (1)；
4) pervious concrete prepared is poured into french drain raceway groove, and uses vibrating spear vibration compacting, pervious concrete is formed
Layer (3)；
5) the construction asphalt surface course (5) in pervious concrete layer (3), completes construction.
7. the construction method of town road edge water seepage mechanism as claimed in claim 6, it is characterised in that in step 4) construction
After the completion of, one layer of geotechnological layer of cloth (6) is first laid in pervious concrete layer (3), then asphalt surface course of constructing on geotechnological layer of cloth (6)
(5)。
8. the construction method of town road edge water seepage mechanism as claimed in claim 6, it is characterised in that step 1) described in
Use concrete material make the specific method steps of some collecting conduits (1) and include：
A) cylindrical barrel (1-1) is made using concrete material, maintenance treats that it solidifies；
B) positive six prismsby shape cylinder (2) is made using hardboard or three-ply board；Wherein positive six prismsby shape cylinder (2) encloses internal horizontal stroke
Sectional dimension is identical with required conduit pipe (1-2) cross sectional dimensions；
C) cylindrical barrel solidified (1-1) is planted vertically, multiple positive six prismsby shape cylinders (2) of required quantity are perpendicular
Directly it is planted in the cylindrical barrel (1-1), and by cellular carry out arranged distribution；
D) poured between each positive six prismsby shape cylinder (2) and between positive six prismsby shape cylinder (2) and cylindrical barrel (1-1)
Concrete, maintenance treats that it solidifies；
E) after the concrete setting poured between each positive six prismsby shape cylinder (2) and cylindrical barrel (1-1) is good, remove just
Hexa-prism cylinder (2)；
F) circumference and longitudinal direction of the concrete drill hole equipment along cylindrical barrel (1-1) side wall are used along cylindrical barrel (1-1)
Radial direction bore several through holes, formed several link up conduit pipes (1-2) limbers (1-4) and water flowing passage (1-
5)。
9. the construction method of town road edge water seepage mechanism as claimed in claim 8, it is characterised in that in step d),
Before casting concrete, between each positive six prismsby shape cylinder (2) and positive six prismsby shape cylinder (2) and cylindrical barrel (1-1)
Between insert woven bar-mat reinforcement in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441634.4A CN107217608B (en) | 2017-06-13 | 2017-06-13 | Town road edge water seepage mechanism and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710441634.4A CN107217608B (en) | 2017-06-13 | 2017-06-13 | Town road edge water seepage mechanism and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107217608A true CN107217608A (en) | 2017-09-29 |
| CN107217608B CN107217608B (en) | 2019-04-26 |
Family
ID=59947581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710441634.4A Expired - Fee Related CN107217608B (en) | 2017-06-13 | 2017-06-13 | Town road edge water seepage mechanism and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107217608B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306616A (en) * | 2019-08-02 | 2019-10-08 | 中交上海航道局有限公司 | A kind of construction method of sewage conduct |
| CN115323873A (en) * | 2022-08-25 | 2022-11-11 | 广东城华工程咨询有限公司 | Construction method of pervious concrete municipal road |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581101A1 (en) * | 1985-04-30 | 1986-10-31 | Communeau Roger | Prefabricated end part called bridge head limiting a crossing of a ditch |
| CN202214684U (en) * | 2011-07-29 | 2012-05-09 | 广东能达高等级公路维护有限公司 | Special washable pipe for highway drainage sewers |
| CN202227457U (en) * | 2011-08-09 | 2012-05-23 | 鞍钢集团矿业公司 | Multifunctional drainage pipe |
| CN202482979U (en) * | 2012-02-17 | 2012-10-10 | 中机国能电力工程有限公司 | Blind ditch with permeable hosepipes |
| CN102839611A (en) * | 2011-06-20 | 2012-12-26 | 马建宝 | Novel plastic blind drain |
| CN203007995U (en) * | 2013-01-06 | 2013-06-19 | 郑新海 | Basement bottom plate blind drain |
| KR20160057627A (en) * | 2014-11-14 | 2016-05-24 | 주식회사 그린셀 | The various purposes rainwater storage tank block |
| CN106013196A (en) * | 2016-07-13 | 2016-10-12 | 中国民航机场建设集团公司 | Underground blind ditch drainage system |
| CN205824393U (en) * | 2016-08-01 | 2016-12-21 | 宜城大瑾实业有限公司 | A kind of tunnel in cold area external thermal insulation covered conduit main drainpipe |
-
2017
- 2017-06-13 CN CN201710441634.4A patent/CN107217608B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581101A1 (en) * | 1985-04-30 | 1986-10-31 | Communeau Roger | Prefabricated end part called bridge head limiting a crossing of a ditch |
| CN102839611A (en) * | 2011-06-20 | 2012-12-26 | 马建宝 | Novel plastic blind drain |
| CN202214684U (en) * | 2011-07-29 | 2012-05-09 | 广东能达高等级公路维护有限公司 | Special washable pipe for highway drainage sewers |
| CN202227457U (en) * | 2011-08-09 | 2012-05-23 | 鞍钢集团矿业公司 | Multifunctional drainage pipe |
| CN202482979U (en) * | 2012-02-17 | 2012-10-10 | 中机国能电力工程有限公司 | Blind ditch with permeable hosepipes |
| CN203007995U (en) * | 2013-01-06 | 2013-06-19 | 郑新海 | Basement bottom plate blind drain |
| KR20160057627A (en) * | 2014-11-14 | 2016-05-24 | 주식회사 그린셀 | The various purposes rainwater storage tank block |
| CN106013196A (en) * | 2016-07-13 | 2016-10-12 | 中国民航机场建设集团公司 | Underground blind ditch drainage system |
| CN205824393U (en) * | 2016-08-01 | 2016-12-21 | 宜城大瑾实业有限公司 | A kind of tunnel in cold area external thermal insulation covered conduit main drainpipe |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110306616A (en) * | 2019-08-02 | 2019-10-08 | 中交上海航道局有限公司 | A kind of construction method of sewage conduct |
| CN115323873A (en) * | 2022-08-25 | 2022-11-11 | 广东城华工程咨询有限公司 | Construction method of pervious concrete municipal road |
| CN115323873B (en) * | 2022-08-25 | 2023-10-31 | 广东城华工程咨询有限公司 | Construction method of permeable concrete municipal road |
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| Publication number | Publication date |
|---|---|
| CN107217608B (en) | 2019-04-26 |
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Granted publication date: 20190426 Termination date: 20200613 |