CN113668307A - Roadbed filling method and device based on high liquid limit red clay improved material - Google Patents
Roadbed filling method and device based on high liquid limit red clay improved material Download PDFInfo
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- CN113668307A CN113668307A CN202110832693.0A CN202110832693A CN113668307A CN 113668307 A CN113668307 A CN 113668307A CN 202110832693 A CN202110832693 A CN 202110832693A CN 113668307 A CN113668307 A CN 113668307A
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- red clay
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- 238000011049 filling Methods 0.000 title claims abstract description 52
- 239000000463 material Substances 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000002893 slag Substances 0.000 claims abstract description 31
- 241000209094 Oryza Species 0.000 claims description 35
- 235000007164 Oryza sativa Nutrition 0.000 claims description 35
- 235000009566 rice Nutrition 0.000 claims description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 238000007906 compression Methods 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- 230000006835 compression Effects 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 11
- 239000002028 Biomass Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000005360 mashing Methods 0.000 claims description 6
- 239000008239 natural water Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000003892 spreading Methods 0.000 claims description 6
- 230000007480 spreading Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005056 compaction Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims 1
- 239000002689 soil Substances 0.000 abstract description 20
- 230000006872 improvement Effects 0.000 abstract description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract description 8
- 235000011941 Tilia x europaea Nutrition 0.000 abstract description 8
- 239000004568 cement Substances 0.000 abstract description 8
- 239000004571 lime Substances 0.000 abstract description 8
- 230000008859 change Effects 0.000 abstract description 7
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- 239000002699 waste material Substances 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010903 husk Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910021486 amorphous silicon dioxide Inorganic materials 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000011504 laterite Substances 0.000 description 1
- 229910001710 laterite Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 239000010908 plant waste Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- CLZWAWBPWVRRGI-UHFFFAOYSA-N tert-butyl 2-[2-[2-[2-[bis[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]amino]-5-bromophenoxy]ethoxy]-4-methyl-n-[2-[(2-methylpropan-2-yl)oxy]-2-oxoethyl]anilino]acetate Chemical group CC1=CC=C(N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)C(OCCOC=2C(=CC=C(Br)C=2)N(CC(=O)OC(C)(C)C)CC(=O)OC(C)(C)C)=C1 CLZWAWBPWVRRGI-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/001—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing unburned clay
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
- E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
- E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
- E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4866—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely non-vibratory or non-percussive pressing or smoothing means for consolidating or finishing
- E01C19/4873—Apparatus designed for railless operation
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a roadbed filling method and a roadbed filling device based on a high liquid limit red clay improvement material, wherein the existing soil improvement technology is mainly characterized in that cement, lime, carbide slag, secondary ash and the like are adopted for improvement, the materials can change the pH value of soil, and soil solute migration can occur under rainfall-runoff conditions to change the pH value of surrounding soil, so that pollution to the surrounding soil is caused.
Description
Technical Field
The invention relates to the field of roadbed filling, in particular to a roadbed filling method and a roadbed filling device based on a high liquid limit red clay improved material.
Background
At present, red clay is widely distributed in Guizhou, Guangxi and Hunan provinces in China, is also distributed in southeast Sichuan, West Zhejiang, northern Jiangxi, West and the like, and the clay is formed by weathering and laterite of carbonate rocks under the conditions of temperature and humidity, generally has high natural water content, high liquid limit, remarkable shrinkage after water loss, low strength and poor engineering property, and can be used for filling road beds after being improved.
Most of the materials used in the prior improvement are cement, lime, carbide slag, lime and the like, which are easy to cause secondary pollution to the environment. The rice hull ash is waste of a biomass power plant, and how to efficiently utilize the rice hull ash as roadbed filler changes waste into valuable, reduces environmental pollution, builds a green road, realizes sustainable energy development is a key problem at the present stage.
Disclosure of Invention
The invention aims to provide a roadbed filling method and a roadbed filling device based on a high liquid limit red clay improved material, and aims to solve the technical problems that in the prior art, most of roadbed filling materials are cement, lime, carbide slag, secondary ash and the like, which easily cause secondary pollution to the environment, rice hull ash is biomass power plant waste, and how to efficiently utilize the rice hull ash as roadbed filling materials, so that waste materials are changed into valuable materials, and the environmental pollution is reduced.
In order to achieve the above object, the roadbed filling method based on the high liquid limit red clay improved material adopted by the invention comprises the following steps,
preparing a roadbed filling material, wherein the roadbed filling material comprises the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay;
grinding the rice hull ash and then filtering;
dehydrating the carbide slag and filtering;
spreading the red clay on outdoor waterproof canvas, and mashing and drying the red clay;
adding the rice hull ash and the carbide slag into the red clay, uniformly stirring, adding water to a target water content, and sealing for more than 7 days;
and paving and leveling the stuff after the stuff is closed, and performing layered filling and rolling to form the roadbed.
Wherein, the roadbed filling material is prepared from the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay,
the rice hull ash is the waste gas generated after power generation of a biomass power plant.
Wherein, the roadbed filling material is prepared from the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay,
the content of coarse red clay particles is less than 25%.
Wherein, in the step of grinding and filtering the rice hull ash,
the rice hull ash is ground for 30min and then sieved by a sieve with the diameter of 80 μm.
Wherein in the step of dehydrating and filtering the carbide slag,
and a sieve with the diameter of 80 mu m is adopted for filtering the carbide slag.
Wherein in the process of spreading the red clay on outdoor waterproof canvas, mashing and drying the red clay,
the natural water content of the red clay is reduced to 5%.
Wherein, the rice hull ash and the carbide slag are mixed into the red clay, water is added to the mixture to be mixed evenly to reach the target water content, and the mixture is sealed for more than 7 days,
the target water content is the optimal water content achieved after the compaction test.
A roadbed filling device based on a high liquid limit red clay improved material comprises a vehicle body, a rolling component and a filling component,
the rolling component comprises a compression roller and a steering driving component, the compression roller is rotationally connected with the vehicle body and is positioned on one side of the vehicle body, and the steering driving component is fixedly connected with the vehicle body and is rotationally connected with the compression roller;
the feeding hopper is fixedly connected with the trolley body and is positioned on one side, close to the press roller, of the trolley body, the feeding tank is fixedly connected with the feeding hopper, communicated with the feeding hopper and positioned at the top of the feeding hopper, and the feeding stirring paddle is rotatably connected with the feeding tank and is positioned in the feeding tank.
The steering driving component comprises a steering connecting seat and a steering driving motor, and the steering connecting seat is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the compression roller; the steering driving motor is fixedly connected with the steering connecting seat and is positioned on one side of the steering connecting seat close to the compression roller, and an output shaft of the steering driving motor is fixedly connected with the compression roller.
The invention relates to a roadbed filling method and a roadbed filling device based on a high liquid limit red clay improvement material, wherein the existing soil improvement technology mostly adopts cement, lime, carbide slag, secondary ash and the like for improvement, the materials can change the pH value of soil, and soil solute migration can occur under rainfall-runoff conditions to change the pH value of surrounding soil, so that pollution to the surrounding soil is caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart of the roadbed filling method based on the high liquid limit red clay improved material.
Fig. 2 is a schematic structural diagram of the roadbed filling device based on the high liquid limit red clay improved material.
In the figure: 1-vehicle body, 2-rolling component, 3-packing component, 21-compression roller, 22-steering driving component, 31-feeding hopper, 32-feeding tank, 33-feeding stirring paddle, 221-steering connecting seat and 222-steering driving motor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides a roadbed filling method based on high liquid limit red clay improved material, including the following steps,
preparing a roadbed filling material, wherein the roadbed filling material comprises the following components in percentage by weight: the method comprises the following steps of (1) 10% of rice hull ash, 5% of carbide slag and the balance of red clay, wherein the rice hull ash is the rice hull ash of waste gas generated after power generation of a biomass power plant, and the content of coarse grains of the red clay is less than 25%;
grinding and filtering the rice hull ash, grinding the rice hull ash for 30min, and sieving the ground rice hull ash with a sieve with the diameter of 80 mu m;
dewatering the carbide slag, filtering, and filtering the carbide slag by adopting a sieve with the diameter of 80 mu m;
spreading the red clay on outdoor waterproof canvas, mashing the red clay, and drying in the sun, wherein the natural water content of the red clay is reduced to 5%;
adding the rice hull ash and the carbide slag into the red clay, uniformly stirring, adding water to a target water content, sealing and sealing for more than 7 days, wherein the target water content is the optimal water content after a compaction test;
and paving and leveling the stuff after the stuff is closed, and performing layered filling and rolling to form the roadbed.
In this embodiment, the present invention provides a roadbed filling material improved based on high liquid limit red clay, wherein the roadbed filling material comprises the following components in parts by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay. The method comprises the following steps: the waste rice hull ash generated by the biomass power plant is ground for 30min and then sieved by a sieve with the diameter of 80 mu m; dewatering the carbide slag to generate a carbide slag raw material, and sieving the carbide slag raw material by a sieve with the diameter of 80 mu m; the content of the red clay coarse particles is less than 25 percent; spreading natural high-plasticity red clay on outdoor waterproof canvas, mashing, sun drying to reduce natural water content to 5%, uniformly adding 10% rice hull ash and 5% calcium carbide residue, stirring, adding water to target water content, and sealing for 7d or more. The target water content is the optimal water content achieved after the compaction test; and paving and leveling the stuff after the stuff is closed, and performing layered filling and rolling to form the roadbed.
The high-plasticity red clay has the characteristics of high natural water content, high liquid limit and poor water stability, and when the high-plasticity red clay is used as a road bed of a highway or a railway, the dry-wet cycle process caused by seasonal climate change is easy to gradually damage a soil structure, so that the problems of subgrade settlement, slope collapse, pavement cracking and the like are caused.
Researches show that the rice hull ash obtained by power plant incineration contains a large amount of amorphous SiO2, has high volcanic ash activity, can generate cation exchange, volcanic ash reaction and production of gelled substances in an alkaline environment provided by carbide slag, improves a soil body structure, reduces pores, fills clay pores, further reduces the liquid limit index of soil, improves the shear strength of red clay, has unconfined compressive strength, and greatly improves the pavement performance of the soil body.
After the rice husk ash and the carbide slag are mixed, a cementing material similar to cement can be formed, ordinary cement is replaced to improve high liquid limit red clay, the consumption of modifiers such as lime and cement is effectively reduced, the rice husk ash belongs to an economic green material, the pH value environment of soil is favorably stabilized, and the environmental pollution is reduced.
The existing soil improvement technology mostly adopts cement, lime, carbide slag, lime and the like for improvement, the materials can change the pH value of soil, soil solute migration can occur under rainfall-runoff conditions to change the pH value of surrounding soil, and pollution of the surrounding soil is caused.
Referring to fig. 2, a roadbed filling device based on high liquid limit red clay improved material comprises a vehicle body 1, a rolling component 2 and a filling component 3,
the rolling component 2 comprises a pressing roller 21 and a steering driving component 22, the pressing roller 21 is rotatably connected with the vehicle body 1 and is positioned on one side of the vehicle body 1, and the steering driving component 22 is fixedly connected with the vehicle body 1 and is rotatably connected with the pressing roller 21;
the packing assembly 3 comprises a feeding hopper 31, a feeding tank 32 and a feeding stirring paddle 33, wherein the feeding hopper 31 is fixedly connected with the car body 1 and is positioned on one side of the car body 1 close to the press roller 21, the feeding tank 32 is fixedly connected with the feeding hopper 31, is communicated with the feeding hopper 31 and is positioned on the top of the feeding hopper 31, and the feeding stirring paddle 33 is rotatably connected with the feeding tank 32 and is positioned in the feeding tank 32.
In this embodiment, the vehicle body 1 is a road roller, the pressure roller 21 and the wheels are mounted at the bottom of the vehicle body 1, the pressure roller 21 is mounted at the front end of the vehicle body 1, the wheels are mounted at the rear end of the vehicle body 1, the feeding hopper 31 and the feeding tank 32 are mounted at the front end of the vehicle body 1, the feeding hopper 31 is a hollow ladder platform, the side with a smaller opening is located at the bottom of the feeding hopper 31, the feeding tank 32 is a rectangular body and hollow inside and is used for placing roadbed filling materials, the stirring paddle is mounted in the feeding tank 32 through a bearing and is provided with a motor for driving the stirring paddle to rotate, and the roadbed filling materials are stirred by the stirring paddle, so that the roadbed filling materials output from the feeding hopper 31 are better mixed.
Further, referring to fig. 2, the steering driving member 22 includes a steering connecting base 221 and a steering driving motor 222, wherein the steering connecting base 221 is fixedly connected to the vehicle body 1 and is located on a side of the vehicle body 1 close to the press roller 21; the turning driving motor 222 is fixedly connected with the turning connecting seat 221 and is positioned on one side of the turning connecting seat 221 close to the press roller 21, and an output shaft of the turning driving motor 222 is fixedly connected with the press roller 21.
In this embodiment, the number of the steering link bases 221 is two, the steering link bases are respectively installed on both sides of the press roll 21, the press roll 21 is rotatably installed through a bearing, and the steering driving motor 222 is threadedly installed on the outer side of the steering link bases 221 and is threadedly connected with the press roll 21 through an output shaft of the steering driving motor 222, so that the press roll 21 is driven to rotate by the steering driving motor 222.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A roadbed filling method based on a high liquid limit red clay improved material is characterized by comprising the following steps,
preparing a roadbed filling material, wherein the roadbed filling material comprises the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay;
grinding the rice hull ash and then filtering;
dehydrating the carbide slag and filtering;
spreading the red clay on outdoor waterproof canvas, and mashing and drying the red clay;
adding the rice hull ash and the carbide slag into the red clay, uniformly stirring, adding water to a target water content, and sealing for more than 7 days;
and paving and leveling the stuff after the stuff is closed, and performing layered filling and rolling to form the roadbed.
2. The roadbed filling method based on the high liquid limit red clay improved material as claimed in claim 1, wherein the roadbed filling material is configured by the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay,
the rice hull ash is the waste gas generated after power generation of a biomass power plant.
3. The roadbed filling method based on the high liquid limit red clay improved material as claimed in claim 1, wherein the roadbed filling material is configured by the following components in percentage by weight: 10% of rice hull ash, 5% of carbide slag and the balance of red clay,
the content of coarse red clay particles is less than 25%.
4. The method for filling a roadbed with the high liquid limit red clay-based improved material as claimed in claim 1, wherein in the step of grinding and filtering the rice hull ash,
the rice hull ash is ground for 30min and then sieved by a sieve with the diameter of 80 μm.
5. The method for filling a roadbed with the high liquid limit red clay-based improved material as claimed in claim 1, wherein in the step of dehydrating and filtering the carbide slag,
and a sieve with the diameter of 80 mu m is adopted for filtering the carbide slag.
6. The roadbed filling method based on the high liquid limit red clay improved material, as claimed in claim 1, wherein in the process of spreading the red clay on outdoor waterproof canvas, mashing and drying the red clay in the sun,
the natural water content of the red clay is reduced to 5%.
7. The method for filling a roadbed based on the high liquid limit red clay improved material as claimed in claim 1, wherein in the step of mixing the rice hull ash and the carbide slag into the red clay, stirring the mixture evenly, adding water to the mixture to a target water content, and sealing the mixture for more than 7 days,
the target water content is the optimal water content achieved after the compaction test.
8. A roadbed filling device based on high liquid limit red clay improved materials, which is used for filling the roadbed of claim 1, and is characterized by comprising a vehicle body, a rolling component and a filling component,
the rolling component comprises a compression roller and a steering driving component, the compression roller is rotationally connected with the vehicle body and is positioned on one side of the vehicle body, and the steering driving component is fixedly connected with the vehicle body and is rotationally connected with the compression roller;
the feeding hopper is fixedly connected with the trolley body and is positioned on one side, close to the press roller, of the trolley body, the feeding tank is fixedly connected with the feeding hopper, communicated with the feeding hopper and positioned at the top of the feeding hopper, and the feeding stirring paddle is rotatably connected with the feeding tank and is positioned in the feeding tank.
9. The method of claim 8, wherein the high liquid limit red clay-based improving material is used as a roadbed filling material,
the steering driving component comprises a steering connecting seat and a steering driving motor, and the steering connecting seat is fixedly connected with the vehicle body and is positioned on one side of the vehicle body close to the compression roller; the steering driving motor is fixedly connected with the steering connecting seat and is positioned on one side of the steering connecting seat close to the compression roller, and an output shaft of the steering driving motor is fixedly connected with the compression roller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110832693.0A CN113668307A (en) | 2021-07-22 | 2021-07-22 | Roadbed filling method and device based on high liquid limit red clay improved material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110832693.0A CN113668307A (en) | 2021-07-22 | 2021-07-22 | Roadbed filling method and device based on high liquid limit red clay improved material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114292055A (en) * | 2022-01-05 | 2022-04-08 | 国能生物发电集团有限公司 | Light roadbed filling material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205188768U (en) * | 2015-12-04 | 2016-04-27 | 无锡职业技术学院 | Multi -use road roller |
| CN108149669A (en) * | 2017-12-22 | 2018-06-12 | 湖南湘讯企业管理有限公司 | A kind of roadbed pads soil pressure leveling device |
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