CN113529531A - Rolling type dry and hard lean concrete temporary road construction method - Google Patents
Rolling type dry and hard lean concrete temporary road construction method Download PDFInfo
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- CN113529531A CN113529531A CN202110842669.5A CN202110842669A CN113529531A CN 113529531 A CN113529531 A CN 113529531A CN 202110842669 A CN202110842669 A CN 202110842669A CN 113529531 A CN113529531 A CN 113529531A
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- 238000010276 construction Methods 0.000 title claims abstract description 46
- 239000004567 concrete Substances 0.000 title claims abstract description 36
- 238000005096 rolling process Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 5
- 238000009432 framing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000013459 approach Methods 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 7
- 238000005056 compaction Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009490 roller compaction Methods 0.000 description 1
- 239000011382 roller-compacted concrete Substances 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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- 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
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/08—Temporary pavings
-
- 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
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
- E01C19/32—Hand-held hand-actuated rammers or tampers
-
- 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
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/41—Apparatus having both rolling tools and ramming, tamping, or vibrating tools
-
- 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
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/10—Coherent pavings made in situ made of road-metal and binders of road-metal and cement or like binders
- E01C7/14—Concrete paving
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Road Paving Structures (AREA)
Abstract
The invention belongs to the field of temporary road engineering, and particularly relates to a rolling type dry hard lean concrete temporary road construction method. C15 dry hard concrete with the thickness of 20cm is laid on the compacted roadbed, the arching gradient in the road is 2%, drainage ditches are laid on two sides of the construction road, the size of each drainage ditch is 30 multiplied by 30cm, mortar is M7.5, and the thickness of the surface of each drainage ditch passing through the water is 2 cm. The temporary road with the structure has the characteristics of high strength, good anti-seepage performance, good durability, environmental protection, low maintenance cost, simple and quick construction procedure, economy and the like. Is deeply influenced by the construction roads, in particular to the construction roads transported by heavy vehicles. The method is widely popularized and applied to the construction of temporary roads such as hydropower station approach temporary roads, municipal road maintenance projects, water environment treatment projects and the like, and has strong applicability.
Description
Technical Field
The invention belongs to the field of temporary road engineering, and particularly relates to a rolling type dry hard lean concrete temporary road construction method.
Background
The design of a temporary road in the existing engineering construction adopts a mud stone pavement structure. It is a structure built by using broken stone and sandstone as aggregate and clay as filling material and binding material and making them pass through compaction process. The mechanical strength and stability of the mud-bonded gravel pavement are dependent on the mutual embedding and squeezing action of the gravel and the bonding action of soil. Although the muddy and broken stone pavement is built by stones with the same size, the muddy and broken stone pavement can generate large dust due to the repeated action of the load of a travelling crane in the using process, and the muddy pavement is easy to form after water spraying and maintenance, so that the environmental pollution is caused; at the same time the rock material is crushed and transformed to a dense grade, reducing its durability. The construction is environmentally unfriendly and maintenance costs during use are extremely high.
Therefore, according to the defects of the mud stone pavement, the dry and hard lean concrete which is economical, environment-friendly, strong in durability and low in maintenance cost is adopted as the temporary pavement structural design, and the using function of the temporary pavement can be better met. The concrete of dry and hard poor cement is made up by using silicate cement, flyash admixture, water, additive, sand and coarse aggregate which are controlled by grades and mixing them to obtain the dry and hard concrete without slump, and adopting the processes of transportation and paving equipment and once-through rolling and forming by means of vibration rolling, so that it is simple in structure and low in cost.
Disclosure of Invention
In order to solve the problems of the prior art, the invention provides a rolling type dry hard lean concrete temporary road construction method; the invention aims to provide a rolling dry hard lean concrete temporary road construction method which is quick in forming, environment-friendly, strong in durability and low in operation and maintenance cost, aiming at the defects of the traditional technology. The temporary road with the structure has the characteristics of high strength, good anti-seepage performance, good durability, environmental protection, low maintenance cost, simple and quick construction procedure, economy and the like. Is deeply influenced by the construction roads, in particular to the construction roads transported by heavy vehicles.
In order to achieve the purpose, the invention adopts the following technical scheme: a rolling type dry hard lean concrete temporary road construction method comprises the following steps:
c15 dry hard concrete with the thickness of 20cm is laid on the compacted roadbed, the arching gradient in the road is 2%, drainage ditches are laid on two sides of the construction road, the size of each drainage ditch is 30 multiplied by 30cm, mortar is M7.5, and the thickness of the surface of each drainage ditch passing through the water is 2 cm.
After the roadbed is preferably leveled, drainage ditches on two sides of the roadbed are dug out manually, the drainage ditches are built to form a road groove, and finally the construction of the dry and hard concrete pavement is carried out.
The preferable construction of the dry and hard concrete pavement adopts the mode of one-time paving and rolling to the designed thickness without layering, and the framing construction is adopted as necessary according to the construction traffic requirement.
The optimized concrete is transported to a working face for unloading from a mixing station by a dump truck, is paved and leveled by a bulldozer in a manual matching mode, is compacted by vibration rolling, and is compacted by manual plate compaction when the local vibration rolling position is not reached.
Compared with the prior art, the invention has the beneficial effects that: the temporary road with the structure has the characteristics of high strength, good anti-seepage performance, good durability, environmental protection, low maintenance cost, simple and quick construction procedure, economy and the like. Is deeply influenced by the construction roads, in particular to the construction roads transported by heavy vehicles. The method is widely popularized and applied to the construction of temporary roads such as hydropower station approach temporary roads, municipal road maintenance projects, water environment treatment projects and the like, and has strong applicability.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of a road width of a mud-broken stone pavement according to the present invention.
Fig. 2 is a schematic view of a primary semiparabolic crown structure according to the present invention.
Fig. 3 is a schematic view of a plane layout structure of a road surface in the invention.
FIG. 4 is a schematic diagram of a large sample structure at A in FIG. 1.
Fig. 5 is a schematic diagram of a large sample structure at B in fig. 1.
Detailed Description
Referring to fig. 1-5, the technical scheme of the invention is a rolling dry hard lean concrete temporary road construction method, which is characterized in that C15 dry hard concrete with a thickness of 20cm is laid on a compacted roadbed, the arching slope in a road is 2%, drainage ditches are laid on two sides of a construction road, the size of each drainage ditch is a 30 x 30cm mortar structure, mortar is M7.5, and the thickness of the surface of each drainage ditch passing through water is 2 cm.
The main construction method of the invention is to level the roadbed, dig the drainage ditches at the two sides of the road manually, build the drainage ditches to form the road groove, and finally construct the hard concrete road surface. The construction of the dry and hard concrete pavement adopts the mode of one-time paving and rolling to the designed thickness without layering, and adopts the mode of framing construction as necessary according to the construction traffic requirement. The concrete adopts dump truck to transport to the working face from mixing the station and unloads, and manual cooperation bull-dozer is spread and is carried out the flattening, and the vibration is rolled and is rolled closely knit, and the local vibration is rolled and is rolled position and adopt artifical plate compactor tamp not to reach.
In which table 1: c15 design table of dry hard lean concrete mix proportion;
table 2: the dosage of C15 dry-hard lean concrete material (kg/m 3);
| water to glue ratio | Sand ratio (%) | Jm-II(%) | VC value | Coal ash grade | Grading |
| 0.56 | 39％ | 0.6％ | 8-10S | I | II |
TABLE 1
TABLE 2
The construction method of the rolling type dry hard lean concrete temporary road according to the present invention will be further described with reference to the attached drawings and the field embodiments.
(1) Measuring line
Before construction of a road surface of a construction road, construction and setting-out are carried out in the road according to a designed route, a central line is marked on a roadbed, a pile is arranged every 20m of a straight line section, a pile is arranged every 10m of a flat curve section, indication piles are arranged on road shoulders on two sides, loose pavement elevations and designed elevations of dry and hard lean concrete are marked, and control sidelines of a road surface base layer are marked by quicklime.
(2) Subgrade finishing
The road surface basic unit is before the construction, at first repaiies current road surface, and is decided according to basic road geology condition when repairment, adopts manual work cooperation bull-dozer flattening in 30cm, if exceed 30cm can adopt the back hoe to carry out the flattening, and the whole flattening back of road bed leads to the storehouse and adopts the vibration to grind and carry out the compaction, and the compaction standard is that the degree of compaction is not less than 95%.
(3) Paving machine
And (3) transporting the mixture to a working surface from a mixing station by adopting a dump truck, calculating the paving area of the mixture of each truck according to the paving thickness, and controlling the unloading place. The spread concrete is spread manually according to a pull wire of a control point, and the virtual paving thickness is controlled according to a ratio coefficient of the compacted dry bulk weight and the mixture loose-stacking dry bulk weight obtained by a mix proportion test.
(4) Roller compaction
The concrete after manual leveling is firstly vibrated and statically rolled for 6 times. And tamping the part which can not be locally rolled by adopting a manual plate tamper. During rolling, the rear wheels are overlapped 1/2 wheel widths; the rear wheel must exceed the seam of the two sections. And strictly prohibiting the vibration roller from turning around or suddenly braking the ground road surface, and ensuring that the surface of the road surface is not damaged. In the rolling process, the rolled concrete pavement needs to be kept wet all the time, if the water loss is large, water needs to be supplemented in time, but the water rolling is forbidden strictly. The rolling process has the phenomena of loosening, peeling and the like, and the rolling process needs to be opened in time and mixed with a proper amount of cement to ensure that the rolling process meets the quality requirement.
(5) Maintaining
After the rolling construction is finished, the concrete pavement needs to be maintained immediately, and the adverse effect on the quality of the concrete pavement caused by neglect of drying and wetting is avoided. And the maintenance period is not less than 7d, and heavy vehicles are forbidden to pass during the maintenance period.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (4)
1. A rolling type dry hard lean concrete temporary road construction method is characterized by comprising the following steps:
c15 dry hard concrete with the thickness of 20cm is laid on the compacted roadbed, the arching gradient in the road is 2%, drainage ditches are laid on two sides of the construction road, the size of each drainage ditch is 30 multiplied by 30cm, mortar is M7.5, and the thickness of the surface of each drainage ditch passing through the water is 2 cm.
2. The rolling type dry hard poor concrete temporary road construction method according to claim 1, characterized in that: and after the roadbed is leveled, manually digging drainage ditches at two sides of the roadbed, building the drainage ditches to form a road groove, and finally constructing the hard concrete pavement.
3. The rolling type dry hard poor concrete temporary road construction method according to claim 2, characterized in that: the construction of the dry and hard concrete pavement adopts the mode of one-time paving and rolling to the designed thickness without layering, and adopts the mode of framing construction as necessary according to the construction traffic requirement.
4. The rolling type dry hard poor concrete temporary road construction method according to claim 3, characterized in that: the concrete adopts dump truck to transport to the working face from mixing the station and unloads, and manual cooperation bull-dozer is spread and is carried out the flattening, and the vibration is rolled and is rolled closely knit, and the local vibration is rolled and is rolled position and adopt artifical plate compactor tamp not to reach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842669.5A CN113529531A (en) | 2021-07-26 | 2021-07-26 | Rolling type dry and hard lean concrete temporary road construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842669.5A CN113529531A (en) | 2021-07-26 | 2021-07-26 | Rolling type dry and hard lean concrete temporary road construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113529531A true CN113529531A (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110842669.5A Pending CN113529531A (en) | 2021-07-26 | 2021-07-26 | Rolling type dry and hard lean concrete temporary road construction method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310266A (en) * | 2000-12-27 | 2001-08-29 | 余永吉 | Paving method of anti-slip pervious cement concrete road surface |
| CN101956460A (en) * | 2010-09-27 | 2011-01-26 | 徐州建筑职业技术学院 | Construction method of hard concrete |
| CN203846796U (en) * | 2014-05-27 | 2014-09-24 | 中国建筑第四工程局有限公司 | Temporary soil discharge slope for top-down construction of basement |
| JP2016156165A (en) * | 2015-02-24 | 2016-09-01 | 太平洋セメント株式会社 | Surface-compacted concrete pavement, and construction method of surface-compacted concrete pavement |
| CN107805989A (en) * | 2017-09-21 | 2018-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Temporary road rolling compacted concrete pavement reconstruction structure and its construction method |
| CN212103531U (en) * | 2020-04-21 | 2020-12-08 | 徐通岭 | Environment-friendly temporary road system |
-
2021
- 2021-07-26 CN CN202110842669.5A patent/CN113529531A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310266A (en) * | 2000-12-27 | 2001-08-29 | 余永吉 | Paving method of anti-slip pervious cement concrete road surface |
| CN101956460A (en) * | 2010-09-27 | 2011-01-26 | 徐州建筑职业技术学院 | Construction method of hard concrete |
| CN203846796U (en) * | 2014-05-27 | 2014-09-24 | 中国建筑第四工程局有限公司 | Temporary soil discharge slope for top-down construction of basement |
| JP2016156165A (en) * | 2015-02-24 | 2016-09-01 | 太平洋セメント株式会社 | Surface-compacted concrete pavement, and construction method of surface-compacted concrete pavement |
| CN107805989A (en) * | 2017-09-21 | 2018-03-16 | 中国电建集团华东勘测设计研究院有限公司 | Temporary road rolling compacted concrete pavement reconstruction structure and its construction method |
| CN212103531U (en) * | 2020-04-21 | 2020-12-08 | 徐通岭 | Environment-friendly temporary road system |
Non-Patent Citations (1)
| Title |
|---|
| 罗竟，邓廷权: "《虎门大桥工程 第4册 引道工程》", 北京理工大学出版社, pages: 299 - 36 * |
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