CN107338692A - Rice hull ash Reinforced subgrade and its construction method - Google Patents
Rice hull ash Reinforced subgrade and its construction method Download PDFInfo
- Publication number
- CN107338692A CN107338692A CN201710743467.9A CN201710743467A CN107338692A CN 107338692 A CN107338692 A CN 107338692A CN 201710743467 A CN201710743467 A CN 201710743467A CN 107338692 A CN107338692 A CN 107338692A
- Authority
- CN
- China
- Prior art keywords
- rice hull
- hull ash
- gsz
- filler
- construction method
- 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.)
- Granted
Links
Classifications
-
- 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
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention provides a kind of Reinforced subgrade by the use of rice hull ash and soil mixing as roadbed filling and corresponding construction method.Construction method involved in the present invention, it is characterised in that comprise the following steps：The smooth compacting in construction site is released roadbed side slope line by step 1.；Step 2. lays one layer of GSZ as separation layer in roadbed substrate, ground top surface, and foundation soil is isolated with filler particles, lays smooth, corrugationless, tensioning；Step 3. is by rice hull ash with soil according to mass ratio 1~1.2：10 carry out being mixed and made into filler；Step 4. is covered, the exposed time must not exceed 48 hours with filler in time after the laying positioning of separation layer GSZ；Step 5. upper strata GSZ making：Filler is laid, and carries out rolling compacting, the thickness after filling compaction is reached 0.5~0.8m, 0.2~0.4m of paving is turned over into downwards at the both ends of GSZ, it is parallel with roadbed side slope side, turning over the 0.3~0.5m that earthed up on the outside of paving；Step 6. by step 5 method successively other each layer grids of making.
Description
Technical field
The invention belongs to roadbed technical field of building construction, and in particular to a kind of rice hull ash Reinforced subgrade and its construction party
Method.
Background technology
China is national as production rice main in the world, rice husk substantial amounts (per year over 40000000 tons), many
Fang Chengwei agricultural wastes, immense pressure is produced to environment.Therefore, find suitable outlet for rice husk has turned into increasingly urgent
Problem.
The content of the invention
The present invention be in order to solve above-mentioned problem and carry out, and it is an object of the present invention to provide it is a kind of with rice hull ash and soil mix as
The Reinforced subgrade of roadbed filling and corresponding construction method.
The present invention to achieve these goals, employs following scheme.
<Construction method>
The present invention provides a kind of construction method of rice hull ash Reinforced subgrade, it is characterised in that comprises the following steps：Step 1.
It is accurate to release roadbed side slope line by the smooth compacting in construction site；Step 2. lays one layer of geotechnique in roadbed substrate, ground top surface
Foundation soil is isolated as separation layer, lays smooth, corrugationless, tensioning by grid with filler particles；Consolidated with plug pin and native stone ballast
Fixed, colligation overlap joint between width and width, lap width is not less than 30cm, and along roadbed laterally to GSZ overlap every 1m
Interspersed connection is carried out with iron wire；Step 3. is by rice hull ash with soil according to mass ratio 1~1.2：10 carry out being mixed and made into filler；Step
4. after the laying positioning of separation layer GSZ, covered in time with filler, the exposed time must not exceed 48 hours；First spread out at both ends
Spread filler, GSZ fixed, then promoted to middle part, from two it is lateral among roll, pinch roller is not direct with geotechnological lattice when rolling
Grid contact, and compactness is reached more than 90%；Step 5. upper strata GSZ making：Filler is laid, and carries out rolling compacting, is made
Height after filling compaction reaches 0.5~0.8m, i.e., the interlamellar spacing of GSZ be 0.5~0.8m, compactness reach 90% with
On, geo-grid sheet is laid, and 0.2~0.4m of paving is turned over into downwards at the both ends of GSZ, it is parallel with roadbed side slope side, so
Turning over the 0.3~0.5m that earthed up on the outside of paving afterwards；Successively the other each layer grids of making, most last layer are native by the method for step 5 for step 6.
Work grid is located at road surface bottom surface, roadbed top surface, after all GSZ makings are complete, that is, proceeds by filling for top road surface.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：In the step
In rapid 1, the spine thrust on place is also removed, in order to ensure width of subgrade, widens 0.5m per side, the ground dried
Base uses 25T vibrated rollers static pressure twice after being flattened, then is shaken and pressed four times with 50T, and hand fit flattens at out-of-flatness.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：In the step
In rapid 3, the mass ratio of rice hull ash and soil is 1:8~10, the water content of rice hull ash is 20~30wt.%, rice hull ash specific gravity range
For 1.8~2.7, native specific gravity range is 2.6~2.8, and native maximum dry density scope is 1.6~2.0g/cm3。
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：In the step
In rapid 5, the height that filler rolls after compacting is 0.6m, and such effect is best.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：In the step
It is that the both ends of GSZ are turned over downwards to paving 0.3m, such effect is best in rapid 5.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：In the step
In rapid 5, paving outside ridging 0.3m is turned over, such effect is best.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：Filler be by
Compaction in layers, lift height are no less than 20cm, and every layer of compactness will reach more than 90%.
The construction method of rice hull ash Reinforced subgrade involved in the present invention, can also have the feature that：Lift height
For 25~30cm.
<Rice hull ash reinforcement road muscle>
The present invention also provides a kind of rice hull ash Reinforced subgrade, it is characterised in that：More than<Construction method>Described in
Construction method institute making.
The effect of invention and effect
(1) present invention uses substantial amounts of rice hull ash, realize the recycling of agricultural wastes rice hull ash, change give up into
Treasured, agricultural pollution is eliminated, the utilization of resources of rice hull ash, not only greatly reduces environmental pollution, and also reduce to existing
The destruction and waste of resource；
(2) rice hull ash reinforced subgrade structure proposed by the present invention can bear larger pulling force, have higher foundation bearing capacity
And the superperformance such as stability；
(3) direction earthwork grille that rice hull ash reinforced subgrade structure proposed by the present invention uses has higher rigidity, makes
Roadbed upper load is effectively adjusted, and reduces differential settlement.
(4) rice hull ash reinforced subgrade structure proposed by the present invention is simple, easy for construction；
(5) rice hull ash reinforced subgrade structure proposed by the present invention use in proportion 1:Rice hull ash-soil of 8~10 mixing is filled out
Material, drastically increase the strength and stiffness of filler；
(6) mode that GSZ is laid in rice hull ash reinforced subgrade structure proposed by the present invention can be effectively increased carrying
Power, slows down the time of subgrade settlement, and subgrade settlement is diminished, and reaches predetermined making effect, makes roadbed service life big
Big increase.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of rice hull ash Reinforced subgrade of the present invention.
In figure, each part numbers are as follows：
1- rice hull ash Reinforced subgrades, 2- fillers, 3- separation layer GSZs, 4- upper stratas geo-grid sheet, 5- road surfaces, 6- roads
Base, 7- grounds.
Embodiment
Rice hull ash Reinforced subgrade involved in the present invention and its construction method are elaborated referring to the drawings.
<Embodiment>
The rice hull ash Reinforced subgrade method that the present embodiment is provided, comprises the following steps：
Step 1. is horizontal by the smooth compacting in construction site, removes spine thrust, accurate to release the side slope line of roadbed 6,
In order to ensure the width of roadbed 6, widen 0.5m per side, 25T vibrated roller static pressure is used after the ground 7 dried is flattened
Twice, then shaken and pressed four times with 50T, hand fit flattens at out-of-flatness；
Step 2. lays one layer of GSZ 3 in the substrate of roadbed 6, the top surface of ground 7 and is used as separation layer, by the soil of ground 7 with
The particle of filler 2 is isolated, and lays smooth, corrugationless, tensioning；Fixed with plug pin and native stone ballast, grid dispatch from the factory size and roadbed 6 it is wide
Degree and length are different, therefore every layer need to lay multiple grids, and the connection between width and width can be overlapped manually in colligation, and overlap joint is wide
Degree is not less than 30cm, and laterally carries out interspersed connection with No. 8 iron wires every 1m to GSZ overlap along roadbed 6；
The selection of step 3. filler 2：Filler 2 selects the mixture of rice hull ash and clay.It is demonstrated experimentally that rice hull ash and soil
Ratio is 1~1.2：When 10, the unconfined compressive strength of filler 2, compressive strength and ultimate bearing capacity are all significantly improved；
After the laying positioning of step 4. separation layer GSZ 3, it should be covered in time with the mixed fillers 2 prepared, when exposed
Between must not exceed 48 hours；First paved filler 2 at both ends, and GSZ 3 is fixed, then is promoted to middle part, lateral middle from two
Roll, pinch roller can not be contacted directly with GSZ 2 when rolling, and compactness must reach more than 90%, and filler 2 is layered into pressure
Real, lift height makes each layer all reach compaction requirement between 25-30cm, until banketing for separation layer GSZ 3 reaches
Predetermined thickness；
Step 5. continues to lay filler, and compaction in layers, lift height make each layer all reach compacting between 25~30cm
Degree requires, until packed height reaches 0.6m, i.e., the spacing, between GSZ is 0.6m, laying geo-grid sheet 3, and by its
Turn over downwards and spread 0.3m, it is parallel with the side slope side of roadbed 6, and manual amendment anchors, earth up 0.3m on the outside of turnup end, protects lattice
Grid, prevent artificial destruction；
After step 6. completes one layer of making of GSZ 4 by the method for step 5, other each layer geotechniques are carried out in the same way
The making of grid 3, in the present embodiment, four layers of geo-grid sheet 4 has been laid altogether, most last layer GSZ 4 is located at the bottom of road surface 5
Face, the top surface of roadbed 6, after all GSZ makings are complete, that is, proceed by filling for top road surface 5.
By above-mentioned steps can making obtain rice hull ash Reinforced subgrade 1.
In above process, in addition to that layer of separation layer GSZ 3 positioned at the top surface of ground 7, other geotechnological lattice
Grid 4 turn over downwards its end in laying paving 0.3m, form domes, produce end reaction, improve bearing capacity.
In addition, tested according to the physicochemical characteristics of rice husk and its zero-g aircraft：At 450 DEG C or so by charred rice husk, system
Into rice hull carbon, average per kilogram rice husk produces 0.2-0.25 kilograms of charcoal, contains cellulose, lignin in rice husk, at high temperature rice husk
Burning forms complete network structure, and as temperature raises, the silica in rice hull ash is switched to shape by amorphous, titanium dioxide
Silicone content increase.
In above-mentioned steps 3, rice hull ash-native filler 21 makes requirement and is：Filler 21 uses rice hull ash-soil, and construction should be kept away
Open the Pluvial, wherein the intensity requirement of mixed fillers 2 is to determine that the minimum strength of mixed fillers 2 is CBR values minimum 8, most by CBR values
Big particle diameter is 8cm；The water content of strict control rice hull ash and earth mixtures, it is unsuitable excessive；Rice hull ash should be by 1 with clay:10
Ratio is well mixed, and compound mix uses place mix, can in time be made and be timely used, mix place is flat, solid.
Filler 21 should strictly be layered pave, layered rolling, when being compacted using large roller, compaction plane and GSZ it
Between should ensure that the filler 2 thick no less than 20cm, lift height as described above should be between 25cm~30cm；Close on side slope of embankment
It is domatic, light-duty compacting machinary compaction in layers should be used.
Rice husk obtains rice hull ash by the combustion mode of high temperature after first low temperature, in black, ground thin rice hull ash particle diameter
In the SiO of 100 microns, wherein rice hull ash2Content be more than 90%.Backfill filler 2 is rice hull ash with native optimal aqueous
State when rate and maximum dry density.
When arranging the muscle material of GSZ 3 and 4, it should stretch, smooth out, be close to sub-layer, must not distort, fold；Geotechnological lattice
Grid 4 should stay certain length in embankment per side, and inflection, which is covered, is rolled in filling in aspect of being compacted；Use and take between GSZ
Connect, the lap of splice is all no less than 30cm；Using sewing up, sew up width and be not less than 50cm, sewing strength is not lower than geotechnique's synthesis
The tensile strength of material；The side slope rate of roadbed 6 is 1:1.5~1:2.
Above example is only the illustration done to technical solution of the present invention.Rice hull ash involved in the present invention adds
Muscle roadbed and its construction method are not merely defined in structure described in the embodiment above, but are limited with claim
Fixed scope is defined.Any modification that those skilled in the art of the invention are made on the basis of the embodiment or supplement wait
Effect is replaced, all in scope of the present invention.
Claims (9)
1. a kind of construction method of rice hull ash Reinforced subgrade, it is characterised in that comprise the following steps：
Step 1. is accurate to release roadbed side slope line by the smooth compacting in construction site；
Step 2. lays one layer of GSZ as separation layer in roadbed substrate, ground top surface, by foundation soil and filler particles
Isolation, lay smooth, corrugationless, tensioning；Fixed with plug pin and native stone ballast, colligation overlap joint between width and width, lap width is not
Interspersed connection laterally is carried out with iron wire every 1m to GSZ overlap less than 30cm, and along roadbed；
Step 3. is by rice hull ash with soil according to mass ratio 1~1.2：10 carry out being mixed and made into filler；
Step 4. is covered, the exposed time must not exceed 48 hours with filler in time after the laying positioning of separation layer GSZ；First
Paved filler at both ends, and GSZ is fixed, then is promoted to middle part, is rolled from two lateral centres, pinch roller is not direct when rolling
Contacted with GSZ, compactness is reached more than 90%；
Step 5. upper strata GSZ making：Filler is laid, and carries out rolling compacting, the thickness of filler after compacting is reached 0.5
~0.8m, compactness reach more than 90%, lay geo-grid sheet, and the both ends of GSZ are turned over downwards paving 0.2~
0.4m, it is parallel with roadbed side slope side, then turning over the 0.3~0.5m that earthed up on the outside of paving；
By the method for step 5, successively the other each layer grids of making, most last layer GSZ are located at road surface bottom surface, roadbed to step 6.
Top surface.
2. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, in the step 1, the spine thrust on place is also removed, in order to ensure width of subgrade, is widened per side
0.5m, uses 25T vibrated rollers static pressure twice after the ground dried is flattened, then is shaken and pressed four times with 50T, at out-of-flatness
Hand fit flattens.
3. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, in the step 3, the mass ratio of rice hull ash and soil is 1:8~10, the water content of rice hull ash for 20~
30wt.%.
4. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, in the step 5, the height that filler rolls after compacting is 0.6m.
5. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, it is that the both ends of GSZ are turned over downwards to paving 0.3m in the step 5.
6. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, in the step 5, paving outside ridging 0.3m is turned over.
7. the construction method of rice hull ash Reinforced subgrade according to claim 1, it is characterised in that：
Wherein, filler is by compaction in layers, and lift height is no less than 20cm, and every layer of compactness will reach more than 90%.
8. the construction method of rice hull ash Reinforced subgrade according to claim 7, it is characterised in that：
Wherein, lift height is 25~30cm.
A kind of 9. rice hull ash Reinforced subgrade, it is characterised in that：
Using the construction method institute making of the rice hull ash Reinforced subgrade described in claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743467.9A CN107338692B (en) | 2017-08-25 | 2017-08-25 | Rice hull ash Reinforced subgrade and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710743467.9A CN107338692B (en) | 2017-08-25 | 2017-08-25 | Rice hull ash Reinforced subgrade and its construction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107338692A true CN107338692A (en) | 2017-11-10 |
| CN107338692B CN107338692B (en) | 2019-10-25 |
Family
ID=60214318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710743467.9A Active CN107338692B (en) | 2017-08-25 | 2017-08-25 | Rice hull ash Reinforced subgrade and its construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107338692B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442200A (en) * | 2018-03-29 | 2018-08-24 | 湖北工业大学 | A kind of composite reinforced roadbed of domestic refuse incineration ash composite soil and its construction method |
| CN109024664A (en) * | 2018-08-10 | 2018-12-18 | 湖北工业大学 | Utilize the reinforced soil retaining wall and construction method of waste tire damping antidetonation |
| CN111764214A (en) * | 2020-07-15 | 2020-10-13 | 湖南省交建工程集团有限公司 | Three-dimensional reinforcement treatment construction method for soft soil roadbed geotechnical synthetic material |
| CN112726310A (en) * | 2021-01-29 | 2021-04-30 | 温州大学 | Reinforced roadbed with concrete building rubbish mixed soil as roadbed filler and construction method thereof |
| CN113774742A (en) * | 2021-09-27 | 2021-12-10 | 蓝海建设集团有限公司 | Road bed filling method based on strongly weathered sand-gravel material or waste building material |
| CN114215037A (en) * | 2021-12-16 | 2022-03-22 | 中国华能集团清洁能源技术研究院有限公司 | Method for processing geogrid of soft soil subgrade of wind power plant |
| CN114753201A (en) * | 2022-04-11 | 2022-07-15 | 湖北工业大学 | Coconut shell fiber and coconut shell geotextile composite reinforced expansive soil roadbed and construction method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643060A (en) * | 2012-05-02 | 2012-08-22 | 同济大学 | High-strength concrete mixed with low-temperature rice husk ash |
| CN104631254A (en) * | 2014-12-26 | 2015-05-20 | 石家庄铁道大学 | Construction method of geogrid reinforced clay edge-covered tailing subgrade |
| CN105802262A (en) * | 2016-04-05 | 2016-07-27 | 长安大学 | Application of rice hull ash as asphalt modifier |
| CN205420949U (en) * | 2016-03-18 | 2016-08-03 | 盐城师范学院 | Straw asphalt |
| CN105859225A (en) * | 2016-05-16 | 2016-08-17 | 南京信息工程大学 | Highly permeable concrete based on rice husk ash |
| CN106012733A (en) * | 2016-05-09 | 2016-10-12 | 赵莹莹 | Wrapping type reinforcement solidification method for roadbed of high filled embankment |
-
2017
- 2017-08-25 CN CN201710743467.9A patent/CN107338692B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102643060A (en) * | 2012-05-02 | 2012-08-22 | 同济大学 | High-strength concrete mixed with low-temperature rice husk ash |
| CN104631254A (en) * | 2014-12-26 | 2015-05-20 | 石家庄铁道大学 | Construction method of geogrid reinforced clay edge-covered tailing subgrade |
| CN104631254B (en) * | 2014-12-26 | 2016-06-22 | 石家庄铁道大学 | A kind of construction method of Fill Reinforced With Geogrids clay bound edge CHARACTERISTICS OF TAILINGS SAND roadbed |
| CN205420949U (en) * | 2016-03-18 | 2016-08-03 | 盐城师范学院 | Straw asphalt |
| CN105802262A (en) * | 2016-04-05 | 2016-07-27 | 长安大学 | Application of rice hull ash as asphalt modifier |
| CN106012733A (en) * | 2016-05-09 | 2016-10-12 | 赵莹莹 | Wrapping type reinforcement solidification method for roadbed of high filled embankment |
| CN106012733B (en) * | 2016-05-09 | 2018-08-14 | 赵莹莹 | High embankment roadbed packaging type reinforcement curing |
| CN105859225A (en) * | 2016-05-16 | 2016-08-17 | 南京信息工程大学 | Highly permeable concrete based on rice husk ash |
Non-Patent Citations (2)
| Title |
|---|
| 厚荣斌: "钢渣、稻壳灰和生石灰改良膨胀土的性能研究", 《公路交通科技》 * |
| 李仰斌: "《水泥与混凝土研究进展 第14届国际水泥化学大会论文综述》", 31 December 2016 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108442200A (en) * | 2018-03-29 | 2018-08-24 | 湖北工业大学 | A kind of composite reinforced roadbed of domestic refuse incineration ash composite soil and its construction method |
| CN108442200B (en) * | 2018-03-29 | 2020-11-03 | 湖北工业大学 | Domestic garbage incineration ash mixed soil composite reinforced roadbed and construction method thereof |
| CN109024664A (en) * | 2018-08-10 | 2018-12-18 | 湖北工业大学 | Utilize the reinforced soil retaining wall and construction method of waste tire damping antidetonation |
| CN111764214A (en) * | 2020-07-15 | 2020-10-13 | 湖南省交建工程集团有限公司 | Three-dimensional reinforcement treatment construction method for soft soil roadbed geotechnical synthetic material |
| CN112726310A (en) * | 2021-01-29 | 2021-04-30 | 温州大学 | Reinforced roadbed with concrete building rubbish mixed soil as roadbed filler and construction method thereof |
| CN113774742A (en) * | 2021-09-27 | 2021-12-10 | 蓝海建设集团有限公司 | Road bed filling method based on strongly weathered sand-gravel material or waste building material |
| CN114215037A (en) * | 2021-12-16 | 2022-03-22 | 中国华能集团清洁能源技术研究院有限公司 | Method for processing geogrid of soft soil subgrade of wind power plant |
| CN114753201A (en) * | 2022-04-11 | 2022-07-15 | 湖北工业大学 | Coconut shell fiber and coconut shell geotextile composite reinforced expansive soil roadbed and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107338692B (en) | 2019-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107338692A (en) | Rice hull ash Reinforced subgrade and its construction method | |
| CN109824335B (en) | Design and construction method for improving phosphogypsum for roadbed slope | |
| CN108442200B (en) | Domestic garbage incineration ash mixed soil composite reinforced roadbed and construction method thereof | |
| CN110130278B (en) | Construction method of cemented dam | |
| CN1936185A (en) | Road foundation | |
| CN108978623B (en) | Composite reinforced gravel cushion layer doped with construction waste and waste tires and construction method | |
| CN104018485B (en) | Bed course carbonization reinforcement means is filled out in changing of a kind of soft foundation | |
| CN112726310A (en) | Reinforced roadbed with concrete building rubbish mixed soil as roadbed filler and construction method thereof | |
| CN205259204U (en) | Two -way grid of junked tire - adds muscle and building rubbish combination environmental protection antidetonation ground | |
| CN107188525B (en) | A kind of roadbed filling and preparation method thereof of building waste and river sand production | |
| CN107165013A (en) | Geotechnical grid reinforcement foam concrete light road foundation fills structure and its method | |
| CN108677638A (en) | Express highway roadbed dam filling construction based on building waste | |
| CN109972468A (en) | A kind of construction method for reinforcing hydraulic fill sand embankment | |
| CN206956481U (en) | A kind of town road local stiffening structure | |
| CN115852768A (en) | Industrial building solid waste carbon-loaded road structure and information automatic carbon maintenance method thereof | |
| CN203625741U (en) | Roadbed filled with tailing sand | |
| CN209703223U (en) | Road structure based on construction refuse regenerated cement stabilizing inorganic mixture | |
| CN108941145A (en) | Refuse landfill intermediate cover layer and its preparation method and application | |
| CN113668316B (en) | Construction method of asphalt highway | |
| CN213115347U (en) | Dampproof ground | |
| CN206591507U (en) | A kind of Soft Ground structure based on reinforced bands sand-gravel cushion | |
| CN208996056U (en) | A kind of existing road back fill of pipe trough structure | |
| CN105152580A (en) | Hydraulic asphalt concrete antiseepage material with large particle size | |
| CN105002864A (en) | Ultra-large-particle-size hydraulic asphalt concrete impermeable material | |
| CN111695178B (en) | Method for finely distributing piles through compaction treatment of foundation |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |