CN110219216A - A kind of construction method of town road and abutment backfill based on foam concrete - Google Patents
A kind of construction method of town road and abutment backfill based on foam concrete Download PDFInfo
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- CN110219216A CN110219216A CN201910470707.1A CN201910470707A CN110219216A CN 110219216 A CN110219216 A CN 110219216A CN 201910470707 A CN201910470707 A CN 201910470707A CN 110219216 A CN110219216 A CN 110219216A
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- 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
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- 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
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/10—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam
- C04B38/106—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by using foaming agents or by using mechanical means, e.g. adding preformed foam by adding preformed foams
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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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- C04B2111/00034—Physico-chemical characteristics of the mixtures
- C04B2111/00146—Sprayable or pumpable mixtures
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- 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
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- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
-
- 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
- C04B2111/40—Porous or lightweight materials
-
- 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
- C04B2111/52—Sound-insulating materials
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses the construction methods that a kind of town road based on foam concrete and abutment backfill, and include the following steps: to obtain cement slurry after being mixed and stirred for cement, light-weight aggregate and water；Foaming agent is sufficiently foamed using foaming machine and obtains foam；Obtained foam is mixed with cement slurry, obtains foam concrete；Obtained foam concrete is directly pumped, is poured using merogenesis segmented mode；After pouring foam concrete in 3~12h, foam concrete is conserved using covering straw pulp, reed pad, gunnysack, sawdust, wet soil or damp sand soil and by the way of watering, the curing time of foam concrete is no less than 7 days.The construction method improves the uneven subsidence of roadbed and bridge by the way that foam concrete is applied to town road and abutment backfill；The globality that single layer of wires net improves foam concrete is installed in foam concrete.
Description
Technical field
The present invention relates to technical field of road engineering, it particularly relates to a kind of town road based on foam concrete
And the construction method of abutment backfill.
Background technique
Foam cohesion is a kind of mechanical means that bubble solution is added in bubble, and foam is injected cement, is gathered materials, outside
Add in slurry made of agent, water and various additives, is then mixed, forms and keeps light porous material.Foam cohesion
Body has good heat-proof quality due to its unique pore structure, compared with traditional materials, with light-weight, body is hard, fire resisting
The features such as.
Due to traditional concrete exist from great, tensile strength is low, crack resistance is poor, the feature of environmental protection is poor, contraction distortion greatly
, often there is differential settlement in problem between roadbed and bridge, road pavement quality impacts.
Summary of the invention
For above-mentioned technical problem in the related technology, the present invention propose a kind of town road based on foam concrete and
The construction method of abutment backfill, can overcome the above-mentioned deficiency of the prior art.
To realize the above-mentioned technical purpose, the technical scheme of the present invention is realized as follows:
A kind of construction method of town road and abutment backfill based on foam concrete, includes the following steps:
(1) production of cement slurry obtains cement slurry after being mixed and stirred for cement, light-weight aggregate and water in blender, will obtain
Cement slurry be stored in the tank with agitating function, to avoid cement slurry precipitating；
(2) foam is produced, and foaming agent is sufficiently foamed using foaming machine and obtains foam, and the density of the foam is 40-60 kilograms/
Cubic meter, foam dilution rate are 40-60, and foam rate is greater than 20 times；
(3) foam that step (2) obtains is mixed with the cement slurry that step (1) obtains, obtains foam by the production of foam concrete
Concrete；
(4) foam concrete that step (3) obtains directly is pumped, is poured using merogenesis segmented mode, 10~15m by pouring construction
For a segment, foam concrete single layer is poured with a thickness of 0.3~0.8m, sets subsiding crack between segment, subsiding crack uses with a thickness of 1
The plank sheathing of~2cm is poured and is a little expanded by center around or poured using multiple spot；
(5) foam concrete conserves, after pouring foam concrete in 3~12h, using covering straw pulp, reed pad, gunnysack, saw
End, wet soil or damp sand soil and water mode conserve foam concrete, the curing time of foam concrete is no less than 7 days.
Further, the strength grade of cement described in step (1) is 42.5 or 42.5 or more.
Further, storage time of the cement slurry in tank described in step (1) is no more than 2 hours.
Further, the retention time of foam described in step (2) is no more than 20 minutes.
Further, in step (4) foam concrete bottom installation single layer steel wire, the steel wire is arranged in 50cm
Hereinafter, the steel wire netting wire spacing is 5cm, steel wire diameter is 3.2mm in the steel wire, and the steel wire overlap length is
20cm。
Further, in the step (5), when temperature is at 15 DEG C or more, in three days after foam concrete pours,
It answers at least every three hours of daily daytime to pour a water, pours water twice at night, at least pour water three times daily in subsequent maintenance.
Beneficial effects of the present invention: mixed using foam by the way that foam concrete is applied to town road and abutment backfill
Solidifying soil lightweight, heat preservation, sound insulation, fire resisting, integrality is good, elasticity is low, damping, waterproof, durable, environmentally friendly, easy for construction etc. many excellent
Benign energy, improves the uneven subsidence of roadbed and bridge；Single layer of wires net is installed in foam concrete and improves foam
The globality of concrete.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the construction method using town road and abutment backfill described in the embodiment of the present invention based on foam concrete
Soft Roadbed light foam concrete earthing change and fill out schematic cross-sectional view；
Fig. 2 is the schematic diagram using the abutment backfill of conventional backfill；
Fig. 3 is the schematic diagram backfilled using the abutment of foam concrete；
In figure: 1, foam concrete, 2, banket, 3, road surface structare layer, 4, road surface, 5, steel wire, 6, bridge floor, 7, abutment, 8, road
Base.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
The town road based on foam concrete and the construction method of abutment backfill are applied according to embodiments of the present invention
Preparation before work includes:
The requirement of field condition, design drawing is familiar with, according to construction drawing and project manager's organization material, equipment, construction personnel；
According to construction plan and technical stipulation, operating personnel should submit technical data and job instruction, and work out by site requirement；The palm
The performance and technical indicator of foam concrete used in this engineering are held, and carries out crucial control；Complete foam concrete construction technology
Inspection record in the inspection and work progress of data；Construction site must solve the warehouse of material, equipment storage；Check construction
Whether basal plane Equipment Foundations, line pipe etc. are installed in place；Check whether the absolute altitude of formation level is correct；Foam concrete construction is opened
Before beginning, changes and fill out basic Ying Wuming water.
Base treatment: it by sundries, barrier cleaning, cleans up.
The town road based on foam concrete and the construction method packet of abutment backfill according to embodiments of the present invention
Include following steps:
(1) production of cement slurry obtains cement slurry after being mixed and stirred for cement, light-weight aggregate and water in blender, will obtain
Cement slurry be stored in the tank with agitating function, to avoid cement slurry precipitating.Wherein, the strength grade of cement is
42.5MPa；Cement slurry chinese raw materials proportion is mainly determined according to the bulk density of the requirement of detailed programs, intensity.
Foam concrete filling main raw material(s) be exactly cement, because filling construction usually be all carry out at normal temperature, Gu
The gelatification mainly by cement is steeped, so cement slurry chinese raw materials match ratio must be matched based on cement using high cement
Proportion.700kg/m3The foam concrete packing material of following bulk density, the proportional quantity of cement cannot be below material in cement slurry
The 70% of total amount.When bulk density is in 500kg/m3When following, the room temperature proportional quantity of cement should account for about the 90% of material total amount in cement slurry
More than.
Light-weight aggregate should not be designed or designed less in cement-slurry method, because it will affect the initial set of slurry, when dosage is larger
When, in some instances it may even be possible to it will cause the mould that collapses.The maximum following foam concrete of additive amount A07 of light-weight aggregate is not to be exceeded the 20% of cement amount；
The 40% of cement amount is not to be exceeded in A09 or less；A12 or less no more than cement amount 50%.
Ratio of water to material is the ratio of water and various dry material total values, and ratio of water to material will not only meet the needs of hydrated reaction of cement,
Also to meet the needs of stirring and moulding by casting.Ideal ratio of water to material should be that cement slurry can easily be mixed into foam, be mixed into
Slurry is only dilute after foam, that is, is easy casting, and will not influence the stability of casting.
The stirring of cement slurry should be carried out according to building adjustment report and the technological parameter determined, to ensure stirring for each ingredient
It mixes uniformly；Storage time of the cement slurry in tank is no more than 2 hours.
(2) foam is produced, and foaming agent is sufficiently foamed using foaming machine and obtains foam, and the density of the foam is 40-60
Kilograms per cubic meter, foam dilution rate is 40-60, and foam rate is greater than 20 times, and foam diameter should control within 1mm, and elasticity is good,
It is not easy to break.Foaming agent is used for the physical property of the test foaming agent before foam concrete is constructed.Foam should be combined with production
It uses, the retention time of foam is no more than 20 minutes.By compressed air by foam compression at foaming agent solution, it is adjusted and steady
Determine coefficient of foaming.The defoamed ratio and sedimentation rate of light-weight soils can be used before meeting design requirement.
(3) foam that step (2) obtains is mixed with the cement slurry that step (1) obtains, is obtained by the production of foam concrete
Foam concrete；
(4) pouring construction directly pumps the foam concrete that step (3) obtains, because this engineering actual conditions and special want
It asks, needs layering, excavation section by section and backfill, segmented to pour to adapt to longitudinal slope, 10~15m is a segment, foam concrete list
Layer pours with a thickness of 0.3~0.8m, and subsiding crack is set between segment, and the plank sheathing that subsiding crack uses with a thickness of 1~2cm pours a little
Expanded around by center or is poured using multiple spot；In the construction of level of ground water, interim dewatering measure should be taken, guarantees ground
Not ponding.In the case where foam concrete curing period being no less than 3 days, when construction, which reaches anti-floating, to be required, interim drop should be cancelled
Water measure.
The engineering of water supply must use pipeline pump.Before conveying pump, tightly whether, sealing joint is or not confirmation pipe joint
It divulges.The pressure of pump feed trumpet should meet the needs of superior and distance.It's 30 minutes or more dead time has past main shaft process, and
Shi Qingli pipeline.When cleaning pipeline, on the basis of pipeline output.When overstocking lifebuoy when upper end is watered, need absorbing people
When work cleans, upper layer is accumulated at once.
During assisting in, foam concrete, mobile foam concrete or transportable concrete not can be reduced.The single area Fu Zhou
Construction time to be controlled within the cement end time.When pouring foam concrete, shareholder wants on your toes and vigilance, Bu Nengcong
It gets off above.Nozzle should be not less than 10cm, in foam concrete to reduce the antifoam performance of foam concrete.It pours a little
Panel and templates for expansion joints should not be directly hit, in order to avoid panel bottom and seam crossing leakage.
When casting, outlet should be embedded in foam concrete.When requiring cannot meet the requirements, the height of outlet and pour point
Difference should control within 1m, and the duration of pouring in the area Dan Jiao should be controlled in cement slurry initial set.When pouring layer initial set, upper layer can be carried out
Construction.In the construction process, during heavy rain or heavy rain, non-hardened foam concrete surface should take interim rain-proof measure.
50cm single layer of wires net is installed in 1 bottom of foam concrete, and single layer of wires net is arranged in 50cm or less.Steel wire spacing
For 5 cm*5 cm, diameter is 3.2 mm, and steel wire overlap length is 20 cm.
The intensity of foam concrete reaches design strength and is directly accessed.
(5) foam concrete conserves, according to environment temperature, after pouring foam concrete in 3~12h, using covering grass
Slurry, reed pad, gunnysack, sawdust, wet soil or damp sand soil and water mode conserve foam concrete, portland cement, ordinary silicon
Acid salt cement is mixed with concrete, cement with water, and the curing time of foam concrete is no less than 7 round the clock.There is retarder or impervious
It is required that concrete, round the clock must not be less than 14 days；When using bauxite cement, it must not be less than 3 days round the clock.When temperature 15 DEG C with
When upper, in three days three nights after concreting, a water should be poured at least every three hours daily, and water twice be poured at night, rear
Water (certainly, when temperature is dry, can suitably increase irrigation times) three times is at least poured in continuous maintenance daily.For large area (or
Large volume) concrete, Ying Caiyong " water storing conservation ".For a kind of reservoir, internal model is removed, it, can be with after reaching some strength
Maintain water.For underground structure or basis, asphalt emulsion can be sprayed again on surface or be filled with soil, rather than be spilt
Water curing.
Plastic film maintenance refers to that concrete is not evaporated by plastic film covering and air separation, moisture, in concrete
The aquation of moisture is the condensation and hardening of cement.This method can directly use plastics drawing-off oversite concrete surface, or mixed
Solidifying soil component surface painted plastic lotion, until lotion is evaporated, in concrete surface formation plastic foil, thus by concrete component
With air separation, thus make condense soil in moisture will not change.The shortcomings that plastics spray film maintenance is coagulation in 28 days
Native intensity has dropped 8% or so, and due to the formation of plastics spray film, the effect for keeping the temperature and freezing cannot be fully achieved.Therefore, in the summer
It in season, needs to add solar protection installation (no less than for 24 hours) in the method, otherwise can cause the Filamentous crack of foam concrete.
Fig. 1 is the construction method using town road and abutment backfill described in the embodiment of the present invention based on foam concrete
Soft Roadbed light foam concrete earthing change and fill out schematic cross-sectional view, 1 lower section of foam concrete and two sides are to banket 2, bubble
The top of foam concrete 1 is road surface structare layer 3, and the top of road surface structare layer 3 is road surface 4, the top and bottom of foam concrete 1
Provided with steel wire 5.
Fig. 2 is using the schematic diagram of the abutment backfill of conventional backfill, and the lower section of bridge floor 6 is provided with abutment 7, under road surface 4
Side is conventional backfill roadbed 8, and the differential settlement phenomenon between the abutment of the structure is more serious.
Fig. 3 is the schematic diagram backfilled using the abutment of foam concrete；It is segmented using foam concrete 1 below road surface 4
It is poured, relative settlement is obviously improved between abutment.
In conclusion by means of above-mentioned technical proposal of the invention, by by foam concrete be applied to town road and
Abutment backfill, using foam concrete lightweight, heat preservation, sound insulation, fire resisting, integrality is good, elasticity is low, damping, waterproof, durable, ring
Many excellent performances such as guarantor, easy for construction, improve the uneven subsidence of roadbed and bridge；It is installed in foam concrete single
Layer steel wire improves the globality of foam concrete.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of construction method of town road and abutment backfill based on foam concrete, which is characterized in that including walking as follows
It is rapid:
(1) production of cement slurry obtains cement slurry after being mixed and stirred for cement, light-weight aggregate and water in blender, will obtain
Cement slurry be stored in the tank with agitating function, to avoid cement slurry precipitating；
(2) foam is produced, and foaming agent is sufficiently foamed using foaming machine and obtains foam, and the density of the foam is 40-60 kilograms/
Cubic meter, foam dilution rate are 40-60, and foam rate is greater than 20 times；
(3) foam that step (2) obtains is mixed with the cement slurry that step (1) obtains, obtains foam by the production of foam concrete
Concrete；
(4) foam concrete that step (3) obtains directly is pumped, is poured using merogenesis segmented mode, 10~15m by pouring construction
For a segment, foam concrete single layer is poured with a thickness of 0.3~0.8m, sets subsiding crack between segment, subsiding crack uses with a thickness of 1
The plank sheathing of~2cm is poured and is a little expanded by center around or poured using multiple spot；
(5) foam concrete conserves, after pouring foam concrete in 3~12h, using covering straw pulp, reed pad, gunnysack, saw
End, wet soil or damp sand soil and water mode conserve foam concrete, the curing time of foam concrete is no less than 7 days.
2. the construction method of the town road and abutment backfill according to claim 1 based on foam concrete, feature
It is, the strength grade of cement described in step (1) is 42.5MPa or 42.5MPa or more.
3. the construction method of the town road and abutment backfill according to claim 1 based on foam concrete, feature
It is, storage time of the cement slurry in tank described in step (1) is no more than 2 hours.
4. the construction method of the town road and abutment backfill according to claim 1 based on foam concrete, feature
It is, the retention time of foam described in step (2) is no more than 20 minutes.
5. the construction method of the town road and abutment backfill according to claim 1 based on foam concrete, feature
It is, the steel wire of foam concrete bottom installation single layer, the steel wire are arranged in 50cm hereinafter, the steel in step (4)
Silk screen steel wire spacing is 5cm, and steel wire diameter is 3.2mm in the steel wire, and the steel wire overlap length is 20cm.
6. the construction method of the town road and abutment backfill according to claim 1 based on foam concrete, feature
It is, in the step (5), when temperature is at 15 DEG C or more, in three days after foam concrete pours, answers daily daytime extremely
It pours a water within few every three hours, pours water twice at night, at least pour water three times daily in subsequent maintenance.
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| CN201910470707.1A CN110219216B (en) | 2019-05-31 | 2019-05-31 | Construction method for municipal road and abutment backfilling based on foam concrete |
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| CN201910470707.1A CN110219216B (en) | 2019-05-31 | 2019-05-31 | Construction method for municipal road and abutment backfilling based on foam concrete |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112010669A (en) * | 2020-07-30 | 2020-12-01 | 中铁十四局集团隧道工程有限公司 | Underground cavity filling method and system |
| CN112627166A (en) * | 2020-12-10 | 2021-04-09 | 广东佛山地质工程勘察院 | Foam concrete backfill operation method and system for civil air defense engineering |
| CN112811855A (en) * | 2020-07-03 | 2021-05-18 | 苏州望意阳环保科技有限公司 | High-strength multifunctional light foam concrete |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
| CN112900174A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Soft foundation replacement structure and construction method thereof |
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| CN112811855A (en) * | 2020-07-03 | 2021-05-18 | 苏州望意阳环保科技有限公司 | High-strength multifunctional light foam concrete |
| CN112010669A (en) * | 2020-07-30 | 2020-12-01 | 中铁十四局集团隧道工程有限公司 | Underground cavity filling method and system |
| CN112627166A (en) * | 2020-12-10 | 2021-04-09 | 广东佛山地质工程勘察院 | Foam concrete backfill operation method and system for civil air defense engineering |
| CN112627166B (en) * | 2020-12-10 | 2022-06-24 | 广东佛山地质工程勘察院 | Foam concrete backfill operation method and system for civil air defense engineering |
| CN112900175A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Road widening structure and construction method thereof |
| CN112900174A (en) * | 2021-01-19 | 2021-06-04 | 华振贵 | Soft foundation replacement structure and construction method thereof |
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