CN204940047U - A kind of protection is passed by one's way the road structure of pipe - Google Patents
A kind of protection is passed by one's way the road structure of pipe Download PDFInfo
- Publication number
- CN204940047U CN204940047U CN201520696097.4U CN201520696097U CN204940047U CN 204940047 U CN204940047 U CN 204940047U CN 201520696097 U CN201520696097 U CN 201520696097U CN 204940047 U CN204940047 U CN 204940047U
- Authority
- CN
- China
- Prior art keywords
- pipe
- way
- centimetres
- rigid
- semi
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model relates to a kind of protection and to pass by one's way the road structure of pipe, pipe of passing by one's way is embedded in medium coarse sand gravel bed, the upper surface of medium coarse sand gravel bed is equipped with cement stabilized macadam stabilized zone, the upper surface of cement stabilized macadam stabilized zone is equipped with rigid base, plurality of layers of double is provided with to steel grid in rigid base, plurality of layers of double is moved towards to lay to pipe of passing by one's way described in steel grid edge, pass by one's way described in being positioned at directly over pipe and arrange, rigid base is equipped with semi-rigid type base, the single-layer bidirectional steel grid at multi-layer phase interval is provided with in semi-rigid type base, pipe of passing by one's way described in every layer of single-layer bidirectional steel grid edge moves towards to lay, be positioned at directly over rigid base and arrange, semi-rigid type base is equipped with asphalt surface course, medium-sand seam, cement stabilized macadam stabilized zone, rigid base, it is trapezoidal that semi-rigid type base and asphalt surface course formation one are successively widened from the bottom up.Can be ensured to pass by one's way by the medium coarse sand gravel bed arranged successively, rigid base, semi-rigid type base the integrality of pipe, makes it improve application life, reduce costs.
Description
Technical field
The utility model relates to road structure in, particularly relates to a kind of protection and to pass by one's way the road structure of pipe.
Background technology
Although China's cement pavement structure has the developing history of decades, but its method for designing be substantially the 1970s and 1980s in last century and the early 1990s a series of achievement in research basis on set up, be subject to the restriction of scientific and technological level at that time, the category of roads relied on is low, vehicular traffic load is little, the speed of service is slow, construction technology is backward.In recent years, along with the raising of expanding economy and technical level, road traffic condition there occurs great changes, and the capacity and level-of-service of part speedway can not satisfy the demands, and is badly in need of carrying out upgrading.
The development of highway transport industry and national economic development level, income level of resident, consumption structure upgrade and road network road conditions etc. closely related.The continuous improvement of upgrading and the road network road conditions gradually of the sustained and rapid development of Chinese national economy, the continuous growth of income level of resident, consumption structure, development for highway in China carrier provides good total environment, and highway in China carrier developing prospect is wide.Along with the fast development of national economy and the growth of goods and materials flowing, thus to the demand of highway transportation also in continuous growth, general highway structure can not better transport, some highway structure poor performance, after the use of certain hour, damaged condition is very serious, repair also more complicated, both be unfavorable for the saving of building cost, and have impact on again normal highway transportation, be also short of to some extent in non-skid property in addition.
The development construction in present city, its urban road is also in continuous development construction, and the pipe of passing by one's way under urban road is also the key project in this city, due to the raising of modern material, popularizing of automobile, automobile on urban road also gets more and more, which results in the compressing of automobile to urban road, thus the compressing to pipe of passing by one's way, cause pipe of passing by one's way to occur damaging, and need to repair it, and this kind of engineering is consuming time longer, and Modern Traffic is caused more block up, cause unnecessary loss, too increase cost simultaneously.
Because above-mentioned defect, the design people, actively in addition research and innovation, the protection to founding a kind of new structure is passed by one's way the road structure of pipe, makes it have more value in industry.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of protection and passes by one's way the road structure of pipe, and protection pipe of passing by one's way is not damaged, and improves application life.
A kind of protection is passed by one's way the road structure of pipe, comprise pipe of passing by one's way, described pipe of passing by one's way is embedded in medium coarse sand gravel bed, the upper surface of described medium coarse sand gravel bed is equipped with cement stabilized macadam stabilized zone, the thickness range of described cement stabilized macadam stabilized zone is at 15 centimetres ~ 25 centimetres, the upper surface of described cement stabilized macadam stabilized zone is equipped with rigid base, plurality of layers of double is provided with to steel grid in described rigid base, described plurality of layers of double is moved towards to lay to pipe of passing by one's way described in steel grid edge, and arrange directly over pipe of passing by one's way described in being positioned at, described rigid base is equipped with semi-rigid type base, the single-layer bidirectional steel grid at multi-layer phase interval is provided with in described semi-rigid type base, pipe of passing by one's way described in every layer of described single-layer bidirectional steel grid edge moves towards to lay, and be positioned at directly over described rigid base and arrange, described semi-rigid type base is equipped with asphalt surface course, described medium-sand seam, cement stabilized macadam stabilized zone, rigid base, it is trapezoidal that semi-rigid type base and asphalt surface course formation one are successively widened from the bottom up.
Further, described protection is passed by one's way the road structure of pipe, and the thickness of described medium coarse sand gravel bed is at 45 centimetres ~ 50 centimetres.
Further; described protection is passed by one's way the road structure of pipe, described in the pass by one's way bottom of pipe and the bottom of medium coarse sand gravel bed be provided with bottom gap, the width of bottom gap is 10 centimetres; the top of described pipe of passing by one's way and the top of medium coarse sand gravel bed be provided with top clearance, the width of top clearance is 5 centimetres.
Further, described protection is passed by one's way the road structure of pipe, and the thickness of described cement stabilized macadam stabilized zone is preferably 18 centimetres, or 20 centimetres, or 25 centimetres.
Further, described protection is passed by one's way the road structure of pipe, gross thickness >=80 centimetre of described cement stabilized macadam stabilized zone, rigid base, semi-rigid type base and asphalt surface course.
Further, described protection is passed by one's way the road structure of pipe, and the thickness of described rigid base is greater than the thickness of semi-rigid type base.
Further, described protection is passed by one's way the road structure of pipe, and described plurality of layers of double is installed in cement stabilized macadam stabilized zone to one end of steel grid, and the other end is embedded in rigid base.
Further, described protection is passed by one's way the road structure of pipe, and the thickness range of described rigid base is at 45 centimetres ~ 50 centimetres.
Further, described protection is passed by one's way the road structure of pipe, and be equipped with interval between the described single-layer bidirectional steel grid of every layer, the distance at interval is between 1 centimetre ~ 2 centimetres.
Further, described protection is passed by one's way the road structure of pipe, and the thickness range of described semi-rigid type base is at 5 centimetres ~ 10 centimetres.
By such scheme, the utility model at least has the following advantages:
The utility model wraps up by medium coarse sand gravel bed pipe of passing by one's way, the stress surface of pipe of making to pass by one's way can be subject to uniform pressure, and there will not be the damage of local, improve the application life of pipe of passing by one's way, and the plurality of layers of double be provided with in re-laying on medium coarse sand gravel bed is to the semi-rigid type base of the single-layer bidirectional steel grid at the rigid base of steel grid and the interior multi-layer phase interval be provided with, can ensure to pass by one's way pipe when being subject to heavier pressure, or repeat pressure time, guarantee to pass by one's way pipe according to possessing integrality, and do not overhaul, reduce the cost overhauled, also can improve the application life of pipe of passing by one's way simultaneously.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of manual, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model.
Fig. 2 is the structural representation of embodiment one of the present utility model.
Fig. 3 is the structural representation of plurality of layers of double to steel grid.
Fig. 4 is the structural representation of single-layer bidirectional steel grid.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Notice, structure, ratio, size etc. that this manual institute accompanying drawings illustrates, content all only in order to coordinate manual to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.
See Fig. 1, Fig. 3, Fig. 4, a kind of protection is passed by one's way the road structure of pipe, be made up of following structure, comprise pipe 1 of passing by one's way, described pipe 1 of passing by one's way is embedded in medium coarse sand gravel bed 2, the upper surface of described medium coarse sand gravel bed 2 is equipped with cement stabilized macadam stabilized zone 3, the thickness range of described cement stabilized macadam stabilized zone 3 is at 15 centimetres ~ 25 centimetres, the upper surface of described cement stabilized macadam stabilized zone 3 is equipped with rigid base 4, plurality of layers of double is provided with to steel grid 41 in described rigid base 4, described plurality of layers of double is moved towards to steel grid 41 along described pipe 1 of passing by one's way to lay, and arrange directly over pipe 1 of passing by one's way described in being positioned at, described rigid base 4 is equipped with semi-rigid type base 5, the single-layer bidirectional steel grid 51 at multi-layer phase interval is provided with in described semi-rigid type base 5, every layer of described single-layer bidirectional steel grid 51 moves towards to lay along described pipe 1 of passing by one's way, and be positioned at directly over described rigid base 4 and arrange, described semi-rigid type base 5 is equipped with asphalt surface course 6, described medium-sand seam 2, cement stabilized macadam stabilized zone 3, rigid base 4, semi-rigid type base 5 and asphalt surface course 6 form one successively widen from the bottom up trapezoidal.When evenly dividing in stressed medium coarse sand gravel bed 2 by pipe 1 of passing by one's way is embedded in; also rigid base 4 and semi-steel basic unit 5 are carried out reinforcing and add steady process; the road surface of passing by one's way on pipe 1 can be born stressed more frequently, thus protection is passed by one's way, the integrality of pipe 1, makes it reduce costs.
And described medium-sand seam 2, cement stabilized macadam stabilized zone 3, rigid base 4, semi-rigid type base 5 and asphalt surface course 6 form one successively widen from the bottom up trapezoidal; heavier pressure can be born in its upper surface; thus protection is passed by one's way, pipe 1 is not damaged, and ensures to pass by one's way the complete of pipe 1.
Wherein, the thickness of described medium coarse sand gravel bed 3, at 45 centimetres ~ 50 centimetres, selects the thickness in this interval can meet the large absolutely diameter counting pipe 1 of passing by one's way.
The described bottom of pipe 1 of passing by one's way and the bottom of medium coarse sand gravel bed 2 are provided with bottom gap, the width of bottom gap is at 10 centimetres, the top of described pipe 1 of passing by one's way and the top of medium coarse sand gravel bed 2 be provided with top clearance, the width of top clearance is at 5 centimetres, pipe 1 of passing by one's way is allowed all to be in medium coarse sand gravel bed 2, its pipe 1 of passing by one's way is made to need the power of bearing can share uniformly on each face of passing by one's way pipe 1, thus there is crackle or damage in the pipe 1 that can not make to pass by one's way, improve the integrality of pipe 1 of passing by one's way, make it reduce renovation project, thus reduce costs.
The thickness of described cement stabilized macadam stabilized zone 3 is preferably 18 centimetres, or 20 centimetres, or 25 centimetres, selects different thickness to adapt to for different sections, and the bearing capacity of the pipe 1 that makes it to pass by one's way improves.
Gross thickness >=80 centimetre of described cement stabilized macadam stabilized zone 3, rigid base 4, semi-rigid type base 5 and asphalt surface course 6, that improves road is subject to supporting capacity, reduces the damage to pipe 1 of passing by one's way as much as possible, thus reduces this section of repairerment, reduction is blocked up, and also can reduce cost that is artificial and material.
The thickness of described rigid base 4 is greater than the thickness of semi-rigid type base 5, due to the basic unit that rigid base 4 is main anti-pressurized, the thickness that its thickness is greater than semi-steel basic unit 5 is inevitable, and semi-rigid type base 5 is thin as the thickness of its thickness relative stiffness basic unit 4 of a kind of auxiliary layer, such paving mode mainly considers the difference of material, also considers the problem of cost and the problem by pressure-bearing simultaneously.
Described plurality of layers of double is installed in cement stabilized macadam stabilized zone 3 to one end of steel grid 41, the other end is embedded in rigid base 4, wherein, the thickness range of described rigid base 4 is at 45 centimetres ~ 50 centimetres, rigid base 4 can be stablized fixing on cement stabilized macadam stabilized zone 3, and plurality of layers of double further can reinforce the intensity to rigid base 4 to steel grid 41, make improving by supporting capacity of road, the pipe 1 that makes it to pass by one's way is not damaged.
Interval is equipped with between the described single-layer bidirectional steel grid 51 of every layer, the distance at interval is between 1 centimetre ~ 2 centimetres, the thickness range of described semi-rigid type base 5 is at 5 centimetres ~ 10 centimetres, equally also can increase the reinforcing to semi-rigid type base 5, make it also can improve the compression capability of road, thus the damage reduced pipe 1 of passing by one's way, improve the application life of pipe 1 of passing by one's way.
Embodiment one
As shown in Figure 2, this road is a cross interface, wherein, tubular structure 9 of passing by one's way is provided with between the sidewalk, both sides 7 of road 8, this passes by one's way tubular structure 9 when laying, need that excavation one carries out to its road 8 inverted trapezoidal, and then medium coarse sand gravel bed 2 is laid, and pipe 1 of passing by one's way is embedded in medium coarse sand gravel bed 2, the thickness of the medium coarse sand gravel bed 3 of filling is at 50 centimetres, the spacing of simultaneously passing by one's way between the top of pipe 1 and medium coarse sand gravel bed 2 and bottom is respectively at 5 centimetres and 10 centimetres, then on medium coarse sand gravel bed 2, lay the cement stabilized macadam stabilized zone 3 of one 20 cm thick, then on cement stabilized macadam stabilized zone 3, plurality of layers of double is built to steel grid 41, then in the rigid base 4 of laying depth 48 centimetres, then in rigid base 4, the spacing at 2 centimetres, interval lays multilayer single-layer bidirectional steel grid 51, the thickness of its semi-rigid type base 5 is made to reach 10 centimetres, finally laying the asphalt surface course 6 of a layer thickness at 4 centimetres, described cement stabilized macadam stabilized zone 3 simultaneously, rigid base 4, gross thickness >=80 centimetre of semi-rigid type base 5 and asphalt surface course 6, this structure is from the bottom up for widen setting successively, thus the supporting capacity of its upper surface is strengthened, thus make pipe 1 reduction damage of passing by one's way.
Detailed description of the invention is as follows, one or more pipe 1 of passing by one's way can be placed at excavation one zanjon, and the width of its bottom between 80 ~ 100 centimetres and its degree of depth between 120 ~ 150 centimetres, it is up in progressively widening layout, then in its zanjon, medium coarse sand gravel bed 2 is laid, make the thickness of medium coarse sand gravel bed 2 at 50 centimetres, pipe 1 of wherein passing by one's way is embedded in medium coarse sand gravel bed 2, it is between the upper and lower every arranging about 5 centimetres and 10 centimetres respectively, then pressing process is carried out, after pressing process, upper a layer thickness of laying is at the cement stabilized macadam stabilized zone 3 of 15 centimetres ~ 25 centimetres at its upper end, then build with the rigid base 4 of plurality of layers of double to steel grid 41 on cement stabilized macadam stabilized zone 3, its thickness range controls between 45 centimetres ~ 50 centimetres, after having laid rigid base 4, end face lays multilayer single-layer bidirectional steel grid 51 thereon, and 1 ~ 2 centimetre, interval between every layer, then laying semi-rigid type base 5 is carried out, finally re-lay thickness at the asphalt surface course 6 of 4 ~ 10 centimetres, finally make cement stabilized macadam stabilized zone 3, rigid base 4, gross thickness >=80 centimetre of semi-rigid type base 5 and asphalt surface course 6, guarantee pipe 1 of passing by one's way there will not be crack or damage, cause needing to repair road surface, thus strengthen the cost repaired.
The utility model wraps up by medium coarse sand gravel bed pipe of passing by one's way, the stress surface of pipe of making to pass by one's way can be subject to uniform pressure, and there will not be the damage of local, improve the application life of pipe of passing by one's way, and the plurality of layers of double be provided with in re-laying on medium coarse sand gravel bed is to the semi-rigid type base of the single-layer bidirectional steel grid at the rigid base of steel grid and the interior multi-layer phase interval be provided with, can ensure to pass by one's way pipe when being subject to heavier pressure, or repeat pressure time, guarantee to pass by one's way pipe according to possessing integrality, and do not overhaul, reduce the cost overhauled, also can improve the application life of pipe of passing by one's way simultaneously.
The above is only preferred embodiment of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. a protection is passed by one's way the road structure of pipe, comprise pipe of passing by one's way, it is characterized in that: described in pipe of passing by one's way be embedded in medium coarse sand gravel bed, the upper surface of described medium coarse sand gravel bed is equipped with cement stabilized macadam stabilized zone, the thickness range of described cement stabilized macadam stabilized zone is at 15 centimetres ~ 25 centimetres, the upper surface of described cement stabilized macadam stabilized zone is equipped with rigid base, plurality of layers of double is provided with to steel grid in described rigid base, described plurality of layers of double is moved towards to lay to pipe of passing by one's way described in steel grid edge, and arrange directly over pipe of passing by one's way described in being positioned at, described rigid base is equipped with semi-rigid type base, the single-layer bidirectional steel grid at multi-layer phase interval is provided with in described semi-rigid type base, pipe of passing by one's way described in every layer of described single-layer bidirectional steel grid edge moves towards to lay, and be positioned at directly over described rigid base and arrange, described semi-rigid type base is equipped with asphalt surface course, described medium-sand seam, cement stabilized macadam stabilized zone, rigid base, it is trapezoidal that semi-rigid type base and asphalt surface course formation one are successively widened from the bottom up.
2. protection according to claim 1 is passed by one's way the road structure of pipe, it is characterized in that: the thickness of described medium coarse sand gravel bed is at 45 centimetres ~ 50 centimetres.
3. protection according to claim 1 is passed by one's way the road structure of pipe; it is characterized in that: described in the pass by one's way bottom of pipe and the bottom of medium coarse sand gravel bed be provided with bottom gap; the width of bottom gap is 10 centimetres; the top of described pipe of passing by one's way and the top of medium coarse sand gravel bed be provided with top clearance, the width of top clearance is 5 centimetres.
4. protection according to claim 1 is passed by one's way the road structure of pipe, it is characterized in that: the thickness of described cement stabilized macadam stabilized zone is preferably 18 centimetres, or 20 centimetres, or 25 centimetres.
5. to pass by one's way according to the protection described in any one in Claims 1-4 the road structure of pipe, it is characterized in that: gross thickness >=80 centimetre of described cement stabilized macadam stabilized zone, rigid base, semi-rigid type base and asphalt surface course.
6. protection according to claim 1 is passed by one's way the road structure of pipe, it is characterized in that: the thickness of described rigid base is greater than the thickness of semi-rigid type base.
7. protection according to claim 1 is passed by one's way the road structure of pipe, it is characterized in that: described plurality of layers of double is installed in cement stabilized macadam stabilized zone to one end of steel grid, and the other end is embedded in rigid base.
8. the protection according to claim 1,6 or 7 is passed by one's way the road structure of pipe, it is characterized in that: the thickness range of described rigid base is at 45 centimetres ~ 50 centimetres.
9. protection according to claim 1 is passed by one's way the road structure of pipe, and it is characterized in that: be equipped with interval between the described single-layer bidirectional steel grid of every layer, the distance at interval is between 1 centimetre ~ 2 centimetres.
10. the protection according to claim 1 or 6 is passed by one's way the road structure of pipe, it is characterized in that: the thickness range of described semi-rigid type base is at 5 centimetres ~ 10 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696097.4U CN204940047U (en) | 2015-09-10 | 2015-09-10 | A kind of protection is passed by one's way the road structure of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520696097.4U CN204940047U (en) | 2015-09-10 | 2015-09-10 | A kind of protection is passed by one's way the road structure of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204940047U true CN204940047U (en) | 2016-01-06 |
Family
ID=55007489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520696097.4U Withdrawn - After Issue CN204940047U (en) | 2015-09-10 | 2015-09-10 | A kind of protection is passed by one's way the road structure of pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204940047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178131A (en) * | 2015-09-10 | 2015-12-23 | 苏州同尚工程设计咨询有限公司 | Pavement structure |
| CN108392923A (en) * | 2018-05-17 | 2018-08-14 | 珠海广睿汇利发展有限公司 | A kind of degradation of road car tail gas and dust pelletizing system |
-
2015
- 2015-09-10 CN CN201520696097.4U patent/CN204940047U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178131A (en) * | 2015-09-10 | 2015-12-23 | 苏州同尚工程设计咨询有限公司 | Pavement structure |
| CN105178131B (en) * | 2015-09-10 | 2017-07-07 | 苏州同尚工程设计咨询有限公司 | A kind of pavement structure |
| CN108392923A (en) * | 2018-05-17 | 2018-08-14 | 珠海广睿汇利发展有限公司 | A kind of degradation of road car tail gas and dust pelletizing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103233406B (en) | A kind of road and storage yard pavement structure layer of long-term durable stable use and construction method thereof | |
| CN105178131A (en) | Pavement structure | |
| CN202559224U (en) | Masonry arch bridge using lightweight concrete as arch upper packing | |
| CN204940047U (en) | A kind of protection is passed by one's way the road structure of pipe | |
| CN201713743U (en) | Asphalt concrete pavement structure of roads in Pingyuan County in Eastern Henan Province | |
| CN102051848B (en) | HMA/CC (Hot-Mix Asphalt)/(Cement Concrete) composite type pavement structure and constructing method thereof | |
| CN105064209A (en) | Bridge deck pavement leveling layer structure and leveling method thereof | |
| Chomicz-Kowalska et al. | Cost and eco-effective cold in-place recycled mixtures with foamed bitumen during the reconstruction of a road section under variable load bearing capacity of the subgrade | |
| CN206956481U (en) | A kind of town road local stiffening structure | |
| CN202227215U (en) | Heavy-duty high-speed paving brick and pavement structure | |
| CN105755923A (en) | Frame compact type cement stabilized macadam base pavement structure | |
| CN203295915U (en) | Road storage yard surfacing structure layer capable of being used durably and stably for long time | |
| CN204435150U (en) | A kind of desert highway assembling flexible pavement | |
| Hakim et al. | UK airfield pavement design using French asphalts | |
| CN105002800A (en) | Pavement overhaul method and structure for treating different lane road surfaces with large road condition differences | |
| CN103526663B (en) | Convolution concrete is adopted to add the method for paving repairing asphalt concrete pavement disease | |
| CN214938907U (en) | New and old road surface mosaic structure for highway extension | |
| CN210737260U (en) | Rigid roadbed and flexible roadbed interface | |
| CN105568809B (en) | A kind of smelter level crossing laying method | |
| CN204849511U (en) | Handle road surface overhaul structure that different lane road surfaces road conditions differed greatly | |
| CN204080584U (en) | Road surface structure | |
| CN211713556U (en) | Energy-concerving and environment-protective cement regeneration asphalt concrete pavement structure | |
| CN205420950U (en) | Energy -conserving road surface structure | |
| CN208430399U (en) | A kind of ruggedized construction improving top course | |
| CN204875405U (en) | Highway embankment is widened in concatenation of foam light soil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160106 Effective date of abandoning: 20170707 |