CN114318990A - Construction waste resource filling method for road widening - Google Patents
Construction waste resource filling method for road widening Download PDFInfo
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- CN114318990A CN114318990A CN202210062142.5A CN202210062142A CN114318990A CN 114318990 A CN114318990 A CN 114318990A CN 202210062142 A CN202210062142 A CN 202210062142A CN 114318990 A CN114318990 A CN 114318990A
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- 238000010276 construction Methods 0.000 title claims abstract description 111
- 239000002699 waste material Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000004567 concrete Substances 0.000 claims abstract description 52
- 239000000945 filler Substances 0.000 claims abstract description 42
- 230000008929 regeneration Effects 0.000 claims abstract description 30
- 238000011069 regeneration method Methods 0.000 claims abstract description 30
- 230000002787 reinforcement Effects 0.000 claims abstract description 20
- 239000002689 soil Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 230000002457 bidirectional effect Effects 0.000 claims description 17
- 239000004570 mortar (masonry) Substances 0.000 claims description 8
- 239000012535 impurity Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000004575 stone Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 4
- 239000011449 brick Substances 0.000 claims description 3
- 238000004064 recycling Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005056 compaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- 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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- Road Paving Structures (AREA)
Abstract
The invention discloses a resource filling method of construction waste for road widening, which comprises the following steps: building a construction waste regenerated aggregate concrete retaining wall on the outer side of the old roadbed side slope; digging steps on the old roadbed side slope to form a step surface; a filling area is formed between the construction waste recycled aggregate concrete retaining wall and the step surface; building garbage regeneration filler is filled in a filling area in layers, a layer of transverse reinforcement is laid after each layer of transverse reinforcement is compacted, one end of each layer of transverse reinforcement is fixed on the step surface, the other end of each layer of transverse reinforcement extends to a building garbage regeneration aggregate concrete retaining wall, and then the building garbage regeneration filler is reversely wrapped to form reverse-wrapped reinforced soil; repeating the process until the road surface structure layer is filled below, and completing the filling of a new road base; and a reinforcing anchor rod is connected between the construction waste recycled aggregate concrete retaining wall and each layer of reverse-wrapped reinforced soil. Compared with the traditional gravity type retaining structure, the invention has the advantages of good anti-seismic performance, small occupied area, wide application range, high construction efficiency, remarkable economic benefit and the like.
Description
Technical Field
The invention relates to the technical field of road widening, in particular to a resource filling method of construction waste for road widening.
Background
With the development of social economy and the increasing traffic flow, part of original roads in China cannot adapt to the development and the demand of modern traffic, and the widening and the modification of the roads are a hot problem in the current traffic field.
In the existing road widening and reconstruction, how to realize good combination of new and old roadbeds under the condition of occupying less land resources as much as possible, and reducing or even eliminating differential settlement is a key problem in road widening and treatment. Due to the limitation of conditions such as design method, construction mechanical property and construction technology, a gravity type retaining structure is often arranged on the outer side of a road in the traditional method. The method has high requirements on the bearing capacity of the original foundation, high consumption of building materials and poor seismic performance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a construction waste resource filling method for road widening.
The invention discloses a construction waste resource filling method for road widening, which comprises the following steps:
step S1, building a construction waste recycled aggregate concrete retaining wall on the outer side of the old roadbed side slope;
step S3, filling a layer of construction waste regeneration filler after the surface of the original foundation is cleaned and compacted in the filling area, paving a layer of transverse reinforcement on the surface after the foundation is fully compacted, continuously filling a layer of construction waste regeneration filler on the transverse reinforcement, and reversely wrapping the construction waste regeneration filler through the transverse reinforcement behind the construction waste regeneration aggregate concrete retaining wall;
and S4, repeating the step S3 until the construction waste regenerated filler is filled below the pavement structure layer, and completing filling of a new roadbed, wherein the new roadbed is connected with the old roadbed through the step surface.
As a further improvement of the present invention, the width of the step surface is not less than 1 m;
the horizontal step faces the old roadbed and inclines inwards by a preset gradient which is not less than 2%.
As a further improvement of the invention, the thickness of the construction waste recycled aggregate concrete retaining wall is not less than 15cm, and the gradient of the thickness of the construction waste recycled aggregate concrete retaining wall is 1: 0.5;
the grade strength of the construction waste recycled aggregate concrete retaining wall is not less than C25.
As a further improvement of the invention, the construction waste recycled aggregate in the construction waste recycled aggregate concrete retaining wall is processed by one or more of concrete, mortar, stone and tiles in the construction waste.
As a further improvement of the invention, the transverse reinforcement is a bidirectional geogrid;
one end of the bidirectional geogrid is fixed on the step surface through a U-shaped steel nail, and the other end of the bidirectional geogrid extends to the rear of the construction waste regeneration aggregate concrete retaining wall, the construction waste regeneration filler is reversely wrapped and fixed with a filling layer lamination roadbed through the U-shaped steel nail.
As a further improvement of the invention, the folded back length of the turn-up is not less than 2 m;
and each layer of the reverse-wrapped bidirectional geogrid contains building garbage fillers to form the reverse-wrapped reinforced soil.
As a further improvement of the invention, the construction waste regenerated filler adopts a layered filling method;
the full width of the roadbed at the same horizontal layer adopts the same material source and the same batch of regenerated fillers.
As a further improvement of the invention, the construction waste recycled filler is prepared by mixing one or more of bricks, concrete blocks, building blocks and mortar particles;
the content of organic matters in the building garbage regenerated filler is not more than 5%, the content of light impurities is not more than 0.1%, the non-uniformity coefficient is not more than 5%, and the content of soluble salts is not more than 0.3%.
As a further improvement of the present invention, the light-weight retaining method further comprises:
step S5, after the construction waste is filled to regenerate the filler, an oblique reinforcing anchor rod is driven into each layer of the reverse wrapped reinforced soil;
one end of each reinforcing anchor rod is arranged in the reverse-wrapped reinforced soil, and the other end of each reinforcing anchor rod penetrates through the corresponding construction waste recycled aggregate concrete retaining wall in an inclined mode.
As a further improvement of the invention, the reinforced anchor rod is a steel bar anchor rod, and the steel bar anchor rod adopts HRB 335-grade steel bars;
the diameter of the HRB335 grade steel bar is not less than 20 mm.
Compared with the prior art, the invention has the beneficial effects that:
the method has simple and clear structure and clear solution to the problems, and can effectively solve the problems of large land occupation, large masonry amount and poor seismic performance when the road is widened and the roadbed is filled.
By adopting the construction waste regeneration filler and the construction waste regeneration aggregate concrete retaining wall, the invention can effectively reduce the land resource and economic waste required by waste treatment. And the loss of natural resources is reduced, and the huge pressure caused by the large consumption of natural stones is relieved.
Compared with the traditional gravity type supporting and retaining structure, the light supporting and retaining structure has the advantages of good anti-seismic performance, small occupied area, wide application range, high construction efficiency, remarkable economic benefit and the like.
Drawings
FIG. 1 is a flow chart of a method for resource filling of construction waste for road widening disclosed by the invention;
fig. 2 is a schematic structural diagram of a construction waste resource filling method for road widening disclosed by the invention.
In the figure:
1. old roadbed; 1-1, step surface; 2. a new roadbed; 3. building garbage regeneration filler; 4. reversely wrapping reinforced soil; 5. building garbage regeneration aggregate concrete retaining wall; 6. reinforcing the anchor rod; 7. a bidirectional geogrid.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the attached drawing figures:
as shown in fig. 1, the invention discloses a construction waste resource filling method for road widening, which comprises the following steps:
step S1, building a construction waste recycled aggregate concrete retaining wall 5 on the outer side of the side slope of the old roadbed 1;
step S3, a layer of construction waste regeneration filler 3 is filled after the surface of the original foundation is cleaned and compacted in a filling area, a layer of transverse reinforcement is laid on the surface after the surface is fully compacted, a layer of construction waste regeneration filler 3 is continuously filled on the transverse reinforcement, and the construction waste regeneration filler 3 is reversely wrapped through the transverse reinforcement behind the construction waste regeneration aggregate concrete retaining wall 5;
and S4, repeating the step S3 until the construction waste regenerated filler 3 is filled below the pavement structure layer, completing filling of the new roadbed 2, and connecting the new roadbed 2 with the old roadbed 1 through the step surface 1-1.
The method has simple and clear structure and clear solution to the problems, and can effectively solve the problems of large land occupation, large masonry amount and poor seismic performance when the road is widened and the roadbed is filled.
By adopting the construction waste regeneration filler 3 and the construction waste regeneration aggregate concrete retaining wall 5, the invention can effectively reduce the land resources and economic waste required by waste treatment. And the loss of natural resources is reduced, and the huge pressure caused by the large consumption of natural stones is relieved.
Compared with the traditional gravity type supporting and retaining structure, the light supporting and retaining structure has the advantages of good anti-seismic performance, small occupied area, wide application range, high construction efficiency, remarkable economic benefit and the like.
Specifically, the method comprises the following steps:
as shown in fig. 2, the width of the step surface in the present invention is not less than 1 m; the horizontal step faces the old roadbed and inclines inwards by a preset gradient which is not less than 2%; the width of the step surface in the invention is preferably 1 m; the preset slope of the horizontal step facing the inward inclination of the old roadbed is preferably 2%. The connection between the old roadbed 1 and the new roadbed 2 can be effectively strengthened.
Further, the thickness of the construction waste recycled aggregate concrete retaining wall 5 is not less than 15cm, and the gradient of the thickness of the construction waste recycled aggregate concrete retaining wall 5 is 1: 0.5; the grade strength of the construction waste recycled aggregate concrete retaining wall 5 is not less than C25.
Because a large number of structures such as protection, drainage facilities, bridges and culverts and the like are dismantled in road widening, a large number of high-quality building masonry materials such as mortar sheet block stones, concrete blocks and the like are formed. The material has definite source, single composition and larger strength, and is a high-quality renewable material source. The portion of the masonry material may be classified and broken into building aggregate, which may be used in concrete retaining walls in place of a portion of the natural aggregate. From the feedback of the existing indoor tests and engineering practices, the mixing proportion of the building materials in the retaining wall type structures can reach 30-50%.
Therefore, the construction waste recycled aggregate in the construction waste recycled aggregate concrete retaining wall 5 is processed by one or more of concrete, mortar, stone and tiles in the construction waste. The construction waste recycled aggregate concrete retaining wall 5 is a masonry retaining structure with certain grade strength formed by adding a certain proportion of construction waste recycled aggregates into concrete to replace conventional coarse and fine aggregates, the self-support property of the structure is improved due to the constraint of the reverse-wrapped reinforced soil 4 on the land, and the lateral pressure of the filled soil body is smaller according to mechanical analysis. Therefore, compared with a gravity retaining wall, the size of the retaining wall is greatly reduced, a steeper gradient can be set, and the occupied area is reduced.
Further, the construction waste recycled aggregate in the construction waste recycled aggregate concrete retaining wall 5 is subjected to crushing, impurity removal, shaping and other processes by professional manufacturers, and the shape of the particles is polyhedral. From the existing indoor tests and engineering practice analysis, in the concrete structure in the expressway, the construction waste recycled aggregate can replace not more than 50 percent of aggregate, and the mechanical property of the construction waste recycled aggregate can be basically the same as that of the conventional concrete. The grade strength of the construction waste recycled aggregate concrete retaining wall is more than C25, and the construction waste recycled aggregate concrete retaining wall can be prefabricated in factories and assembled on site according to the filling height and the engineering condition, so that the pollution to the environment during site construction is reduced, and the construction efficiency is improved.
Further, the transverse reinforcement material in the invention is a bidirectional geogrid 7; one end of a bidirectional geogrid 7 is fixed on the step surface 1-1 through a U-shaped steel nail, the other end of the bidirectional geogrid is stretched to the position of a construction waste regeneration aggregate concrete retaining wall 5 to be used for reversely wrapping the construction waste regeneration filler 3, and the bidirectional geogrid and a filling laminated roadbed are fixed through the U-shaped steel nail, namely one end of the bidirectional geogrid 7 is fixed on the step surface 1-1, and the other end of the bidirectional geogrid is fixed inside the laminated roadbed after being reversely wrapped.
Further, the folding back length of the turn-up in the invention is not less than 2 m; each layer of the reversely wrapped bidirectional geogrids contains building garbage fillers to form reversely wrapped reinforced soil 4. The reverse-wrapped reinforced earth 4 of the invention improves the deformation condition of the earth body and improves the engineering performance of the earth body by utilizing the interaction between the reverse-wrapped reinforced earth and the earth, thereby achieving the aim of stabilizing the earth body.
Furthermore, the mechanical property of the soil is improved due to the interaction between the reinforced earth ribs and the filling soil, the improvement is embodied in that the deformation of the filling soil is inhibited in the mutual friction constraint of the geogrid and the filling soil, the tensile stress is borne or the shearing and bending are borne, and the strength and the stability of the soil body are improved. Therefore, the selection of the rib material is very important. The rib material can adopt geogrid and similar geosynthetic materials, the products are rich in types, and the high-strength bidirectional geogrid 7 with high strength, small tensile strain, good ageing resistance and small creep deformation is preferably adopted in the invention.
Further, as shown in tables 1 and 2, the construction waste recycling filler 3 of the present invention is filled by a layered filling method; the construction waste is relatively complex in composition, so that the construction waste is required to be classified, cleaned, crushed and the like to be used as roadbed filling, and the construction waste regeneration filling 3 is preferably prepared by mixing one or more of bricks, concrete blocks, building blocks and mortar particles; the grain diameter of the construction waste regenerated filler 3 used for the roadbed filler is less than 37.5mm, and the roadbed filling and paving thickness, the optimal water content, the loose paving coefficient, the mechanical combination and the like are applied according to the actual engineering requirements. Because concrete blocks, masonry, mortar blocks and the like have different water absorption capacity and different strength; therefore, the full width of the roadbed in the same horizontal layer adopts the regenerated filling material with the same material source and the same batch. When the layered rolling is carried out, the building garbage filler on each layer is smooth and compact, and the requirement of the conventional roadbed filling compactness is met.
Furthermore, the content of organic matters in the construction waste regeneration filler 3 is not more than 5%, the content of light impurities is not more than 0.1%, the non-uniformity coefficient is not more than 5%, and the content of soluble salts is not more than 0.3%.
Furthermore, the index requirements of the construction waste are different according to different project scales and grades. Taking the highway construction waste recycled filler as an example, the following requirements can be met. The regenerated filler mainly refers to a regenerated building material formed by crushing, screening and sorting building garbage by adopting special equipment. The regenerated material should be sampled and detected before use, and can be used after being detected to be qualified. And (4) detecting and storing the recycled materials with the same material source and specification as the same batch of materials on the construction site. Different batches of recycled materials should be sampled and tested separately. The particle size of the regenerated material for filling the embankment is not more than 150mm, and the particle size of the regenerated material for filling the roadbed is not more than 60 mm.
TABLE 1 recycled Material grading requirements
TABLE 2 recycled materials specifications
Note: light impurities refer to impurities with low density (such as plastics, wood blocks, cloth pieces, paper scraps, foam particles and the like) which are not suitable for roadbed filling.
Further, construction parameters such as compaction power, rolling speed, compaction times, paving layer thickness and the like of the construction waste recycling filler 3 are determined according to actual engineering conditions and meet corresponding standards.
Further, as shown in fig. 1, the light-weight retaining method of the present invention further includes:
step S5, after the construction waste regenerated filler 3 is filled, an oblique reinforcing anchor rod 6 is driven into each layer of the reverse wrapped reinforced soil 4; one end of each reinforcing anchor rod 6 is arranged in the reverse-wrapped reinforced soil 4, the other end of each reinforcing anchor rod obliquely penetrates through the corresponding construction waste recycled aggregate concrete retaining wall 5, and the reinforcing anchor rods 6 are preferably steel bar anchor rods which adopt HRB 33-grade steel bars; the diameter of the HRB335 grade steel bar is not less than 20mm, and the diameter of the HRB335 grade steel bar in the invention is preferably 20 mm.
Further, during actual construction, the construction key points of the invention comprise:
1. the roadbed filling adopts mechanized construction;
2. in the roadbed construction process, light impurities mixed in the regeneration material are cleaned and picked up again in cooperation with manual work;
3. the regenerated materials with different material sources and different batches are horizontally layered, filled in sections and compacted in layers. The full width of the roadbed on the same horizontal layer adopts the same material source and the same batch of regenerated materials, so that mixed filling is not required;
4. when the reinforcement is laid, the laid reinforcement is smooth and straight, and the reinforcement is fixed by U-shaped steel nails when being lapped, so that the reinforcement is ensured not to have the phenomena of folding and twisting;
5. technical measures should be taken to reduce slump loss and prevent segregation during the transportation of the recycled aggregate concrete. When the slump loss of the recycled aggregate concrete mixture is large due to long transportation or pouring waiting time, a proper amount of water reducing agent determined by a technical scheme can be doped before unloading for stirring, but water is strictly forbidden.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The construction waste recycling filling method for road widening is characterized by comprising the following steps:
step S1, building a construction waste recycled aggregate concrete retaining wall on the outer side of the old roadbed side slope;
step 2, digging steps on the old roadbed slope of the road needing to be widened, and further forming a step surface; a filling area is formed between the construction waste recycled aggregate concrete retaining wall and the step surface;
step S3, filling a layer of construction waste regeneration filler after the surface of the original foundation is cleaned and compacted in the filling area, paving a layer of transverse reinforcement on the surface after the foundation is fully compacted, continuously filling a layer of construction waste regeneration filler on the transverse reinforcement, and reversely wrapping the construction waste regeneration filler through the transverse reinforcement behind the construction waste regeneration aggregate concrete retaining wall;
and S4, repeating the step S3 until the construction waste regenerated filler is filled below the pavement structure layer, and completing filling of a new roadbed, wherein the new roadbed is connected with the old roadbed through the step surface.
2. The resource filling method of construction waste for road widening according to claim 1, wherein the width of the step surface is not less than 1 m;
the horizontal step faces the old roadbed and inclines inwards by a preset gradient which is not less than 2%.
3. The resource filling method of the construction waste for road widening according to claim 1, wherein the thickness of the construction waste recycled aggregate concrete retaining wall is not less than 15cm, and the gradient of the thickness of the construction waste recycled aggregate concrete retaining wall is 1: 0.5;
the grade strength of the construction waste recycled aggregate concrete retaining wall is not less than C25.
4. The resource filling method of construction waste for road widening according to claim 3, wherein the construction waste recycled aggregate in the construction waste recycled aggregate concrete retaining wall is processed by one or more of concrete, mortar, stone and tiles in the construction waste.
5. The resource reclamation filling method of the construction waste for road widening as recited in claim 1, wherein the transverse reinforcement is a bidirectional geogrid;
one end of the bidirectional geogrid is fixed on the step surface through a U-shaped steel nail, and the other end of the bidirectional geogrid extends to the rear of the construction waste regeneration aggregate concrete retaining wall, the construction waste regeneration filler is reversely wrapped and fixed with a filling layer lamination roadbed through the U-shaped steel nail.
6. The resource reclamation filling method of construction waste for road widening according to claim 5, wherein the turning length of the turn-up is not less than 2 m;
and each layer of the reverse-wrapped bidirectional geogrid contains building garbage fillers to form the reverse-wrapped reinforced soil.
7. The resource filling method of the construction waste for road widening according to claim 1, characterized in that the construction waste regenerated filler adopts a layered filling method;
the full width of the roadbed at the same horizontal layer adopts the same material source and the same batch of regenerated fillers.
8. The resource filling method of the construction waste for road widening according to claim 7, wherein the construction waste recycled filler is prepared by mixing one or more of bricks, concrete blocks, building blocks and mortar particles;
the content of organic matters in the building garbage regenerated filler is not more than 5%, the content of light impurities is not more than 0.1%, the non-uniformity coefficient is not more than 5%, and the content of soluble salts is not more than 0.3%.
9. The resource reclamation filling method for the construction waste for road widening as recited in claims 1 to 7, wherein the light retaining method further comprises:
step S5, after the construction waste is filled to regenerate the filler, an oblique reinforcing anchor rod is driven into each layer of the reverse wrapped reinforced soil;
one end of each reinforcing anchor rod is arranged in the reverse-wrapped reinforced soil, and the other end of each reinforcing anchor rod penetrates through the corresponding construction waste recycled aggregate concrete retaining wall in an inclined mode.
10. The resource filling method of the construction waste for road widening according to claim 9, wherein the reinforcing anchor is a steel bar anchor, and the steel bar anchor adopts HRB335 grade steel bars;
the diameter of the HRB335 grade steel bar is not less than 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210062142.5A CN114318990A (en) | 2022-01-19 | 2022-01-19 | Construction waste resource filling method for road widening |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210062142.5A CN114318990A (en) | 2022-01-19 | 2022-01-19 | Construction waste resource filling method for road widening |
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| CN114318990A true CN114318990A (en) | 2022-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288167A (en) * | 2022-08-22 | 2022-11-04 | 温州市环境发展有限公司 | Method for reinforcing fly ash pile body side slope of refuse landfill |
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|---|---|---|---|---|
| CN202416329U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Retaining structure of combined reinforced soil pile wall |
| CN105019326A (en) * | 2015-06-29 | 2015-11-04 | 河南华泰建材开发有限公司 | Roadbed structure applied to road widening and construction method |
| US20210108389A1 (en) * | 2019-10-15 | 2021-04-15 | Institute Of Rock And Soil Mechanics, Chinese Academy Of Sciences | Method of strengthening and widening subgrade with geocell based on conductive polymer |
| 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 |
| CN214193981U (en) * | 2020-12-17 | 2021-09-14 | 重庆纵横工程设计有限公司 | Roadbed structure is widened to side slope road fill side |
-
2022
- 2022-01-19 CN CN202210062142.5A patent/CN114318990A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202416329U (en) * | 2011-12-21 | 2012-09-05 | 中铁第四勘察设计院集团有限公司 | Retaining structure of combined reinforced soil pile wall |
| CN105019326A (en) * | 2015-06-29 | 2015-11-04 | 河南华泰建材开发有限公司 | Roadbed structure applied to road widening and construction method |
| US20210108389A1 (en) * | 2019-10-15 | 2021-04-15 | Institute Of Rock And Soil Mechanics, Chinese Academy Of Sciences | Method of strengthening and widening subgrade with geocell based on conductive polymer |
| CN214193981U (en) * | 2020-12-17 | 2021-09-14 | 重庆纵横工程设计有限公司 | Roadbed structure is widened to side slope road fill side |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115288167A (en) * | 2022-08-22 | 2022-11-04 | 温州市环境发展有限公司 | Method for reinforcing fly ash pile body side slope of refuse landfill |
| CN115288167B (en) * | 2022-08-22 | 2023-12-08 | 温州市环境发展有限公司 | Method for reinforcing side slope of fly ash pile of refuse landfill |
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