CN110485229A - A kind of air bubble mix light-textured soil construction technology - Google Patents
A kind of air bubble mix light-textured soil construction technology Download PDFInfo
- Publication number
- CN110485229A CN110485229A CN201910695043.9A CN201910695043A CN110485229A CN 110485229 A CN110485229 A CN 110485229A CN 201910695043 A CN201910695043 A CN 201910695043A CN 110485229 A CN110485229 A CN 110485229A
- Authority
- CN
- China
- Prior art keywords
- construction technology
- mix light
- locating piece
- air bubble
- substrate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/38—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions wherein the mixing is effected both by the action of a fluid and by directly-acting driven mechanical means, e.g. stirring means ; Producing cellular concrete
- B28C5/381—Producing cellular concrete
- B28C5/386—Plants; Systems; Methods
- B28C5/388—Methods
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
-
- 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
- E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
- E01C2301/02—Feeding devices for pavers
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a kind of air bubble mix light-textured soil construction technology, includes the following steps: that a. excavates substrate, substrate is tamped；B. it is laid with rubble in substrate, forms bed course；C., multiple locating pieces are set, the locating piece includes locating pin and ontology, the ontology includes locating piece and reinforcing bar, and multiple reinforcing bars are connected on the locating piece in petal-shaped arrangement, and the locating pin is inserted into the substrate after from top to bottom sequentially passing through the locating piece and bed course；D. Foam lightweight soil is poured, surface layer is formed, the surface layer floods the locating piece.Compared with prior art, the present invention reduces the compression and defoaming of bubble by reducing the flowing of Foam lightweight soil in casting process, and bulk density is as close to design objective when so as to guarantee practice of construction.
Description
Technical field
The present invention relates to air bubble mix light-textured soil construction technology, in particular to a kind of air bubble mix light-textured soil construction technology.
Background technique
Air bubble mix light-textured soil is a kind of Novel environment-friendlymaterial material, for solve soft foundation of High-grade Highway embankment in jump vehicle,
The relative settlement of new and old roadbed when Soft Ground, Roadbed Widening, highfill embankment stability, economize the land resource
Equal global problems provide a kind of fabulous technological means, have good promotional value.But it is mixed using existing bubble
Solidifying soil construction technology is easy to cause bulk density to differ greatly with design objective.In view of this, the present inventor obtains by further investigation
A kind of air bubble mix light-textured soil construction technology.
Summary of the invention
The object of the present invention is to provide a kind of air bubble mix light-textured soil construction technology, having can effectively be controlled when pouring
Bulk density the advantages of.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of air bubble mix light-textured soil construction technology, includes the following steps:
A. substrate is excavated, substrate is tamped；
B. it is laid with rubble in substrate, forms bed course；
C., multiple locating pieces are set, the locating piece includes locating pin and ontology, and the ontology includes locating piece and reinforcing bar,
Multiple reinforcing bars are connected on the locating piece in petal-shaped arrangement, and the locating pin from top to bottom sequentially passes through the positioning
It is inserted into after block and bed course in the substrate；
D. Foam lightweight soil is poured, surface layer is formed, the surface layer floods the locating piece.
Further to improve, the side of substrate is in step-like in the step a.
It is further to improve, thickness is once constructed between 0.25m~1m when pouring Foam lightweight soil in the step d.
It is further to improve, it further include step t between the step c and step d, the step t includes: 1. to generate gas
Bubble；2. preparing cement slurry；3. bubble is mixed with cement slurry, Foam lightweight soil is obtained.
Further to improve, 1. the step is specially that foaming agent solution is foamed by foam device, obtains bubble；Institute
2. stating step is specially uniformly to mix base material, curing materials and water, mixing is at cement slurry.
Further to improve, the wet density of the surface layer is 5.5KN/m3~6.0KN/m3, compression strength be 0.6MPa~
0.8MPa。
It is further to improve, it is pumped when pouring Foam lightweight soil in the step d using pipeline.
Further to improve, when using pipeline pumping, using disperser, the disperser includes bracket and hard conveying
Pipe, the both ends of the hard delivery pipe are erected on the bracket, and one end closing, the other end is connect with pipeline, lower surface
Equipped with multiple equally distributed dumping pits.
Further to improve, the caliber of the hard delivery pipe is gradually increased from one end that it connect with pipeline to the other end
Greatly.
Compared with prior art, the present invention provides a kind of air bubble mix light-textured soil construction technology, is poured by reducing
The flowing of Foam lightweight soil reduces the compression and defoaming of bubble in journey, and bulk density leans on as far as possible when so as to guarantee practice of construction
Nearly design objective；Specifically, it prevents flowing of the Foam lightweight soil when pouring, the tectonic sieving energy of locating piece by locating piece
It is enough properly arrived at this effect, by setting disperser, shortens the flow distance of Foam lightweight soil, can also play very well
Prevent bubble compress and defoaming effect, further control Foam lightweight soil bulk density.
Detailed description of the invention
Fig. 1 is that the present invention relates to a kind of structural schematic diagrams of the locating piece of air bubble mix light-textured soil construction technology.
Fig. 2 is that the present invention relates to a kind of fractionation structural representations of the locating piece of air bubble mix light-textured soil construction technology.
Fig. 3 is that the present invention relates to a kind of structural schematic diagrams of the substrate side of air bubble mix light-textured soil construction technology.
Fig. 4 is that the present invention relates to a kind of bubble formation process flow charts of air bubble mix light-textured soil construction technology.
Fig. 5 is that the present invention relates to a kind of Foam lightweight soils of air bubble mix light-textured soil construction technology to generate process flow chart.
Fig. 6 is that the present invention relates to a kind of structures of the disperser of the Foam lightweight soil of air bubble mix light-textured soil construction technology to show
It is intended to.
In figure
Substrate -1；Bed course -2；Locating pin -31；
Locating piece -32；Reinforcing bar -33；Surface layer -4；
Bracket -51；Hard delivery pipe -52；Dumping pit -521.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
As shown in Figure 1 to Figure 3, a kind of air bubble mix light-textured soil construction technology, includes the following steps:
A. substrate 1 is excavated, substrate 1 is tamped, the side of substrate 1 is in step-like, and when excavation, it is anti-should to carry out rain-proof
Water conservancy project is made, and reduces rainwater washing away to the substrate 1 after excavation to the greatest extent, and when slope excavating needs to excavate former draining chute, at this moment
It needs the rainwater of road pavement to be drained, repairs a water-proof strip in hardened verge Bian Shangyong cement mortar, rainwater on road surface is drained into
The chute on roadbed not excavated should cover the roadbed of excavation when rainwater is larger, after the completion of mechanical thick excavation, adopt
Manually carry out subtle finishing；
B. after substrate 1 is tamped, it is laid with rubble on the base 1, forms bed course 2, the construction of bed course 2 is using artificial and mechanical knot
Construction is closed, after machinery is slightly put down, then manually essence is flat；
C., multiple locating pieces are set, and the locating piece includes locating pin 31 and ontology, and the ontology includes 32 He of locating piece
Reinforcing bar 33, multiple reinforcing bars 33 in petal-shaped arrangement be connected on the locating piece 32, the locating pin 31 from top to bottom according to
It is secondary to be inserted into the substrate 1 after the locating piece 32 and bed course 2, the fixation of locating piece 32 is realized using locating pin 31, i.e.,
Also achieve the positioning of reinforcing bar 33；
D. it pours Foam lightweight soil, forms surface layer 4, the surface layer 4 floods the locating piece, is pouring and process of setting
In, reinforcing bar 33, which forms Foam lightweight soil, to be stopped, and is slowed down Foam lightweight soil flowing, is compressed and defoamed general to reduce bubble
Rate, effectively control bulk density；After completing the setting, due to the unique contour structures of reinforcing bar 33, Foam lightweight soil can be formed and is drawn
Hold, can effective lift structure intensity, extend the service life of highway.
The subtle feature of the existing independence of bubble in Foam lightweight soil, it may have dispersibility, therefore to keep away in the construction process
Exempt from undue oscillation.When filling foams mix light soil, due to the influence of its own weight, bubble and defoaming can be compressed, therefore, is filled out
Foams mix light soil after building is it sometimes appear that the case where tightening and wet density is caused to increase, so primary maximum construction thickness
Degree is not less than 0.25m no more than 1m, minimum construction thickness, i.e., thickness of once constructing when pouring Foam lightweight soil in the described step d
Degree is between 0.25m~1m.
It further, further include step t between the step c and step d, the step t includes: 1. to generate bubble；2. making
Standby cement slurry；3. bubble is mixed with cement slurry, Foam lightweight soil is obtained；Specifically, 1. the step is specially by foaming agent
Solution is foamed by foam device, obtains bubble；2. the step is specially uniformly to mix base material, curing materials and water, mix
Cement slurry is made.
In the prior art, mechanical mixture foaming is generallyd use, first uniformly mixes base material, curing materials and water,
Mixing is poured into high-speed mixer at raw material soil paste, then by raw material soil paste and foaming agent, is acted on by the high-speed stirred of blade, gas
Bubble is a large amount of to be generated, and Foam lightweight soil slurry is thus made, has the drawback that one side bubbling efficiency is lower, foaming agent is molten
Liquid can not be completely formed bubble, and the bubble diameter up and down of bubble obtained is uneven, on the other hand, high-speed stirring be used during mixing
Machine is mixed, stirring action is strong, and the density of bubble lightweight soil is not easily controlled；And by the way of in the present embodiment, on the one hand
It is foamed using foam device, bubbling efficiency is higher, and the utilization rate of foaming agent solution is 100%, and bubble diameter is uniform；On the other hand,
High-speed mixer is not used during mixing, mixing effect is not strong, and the density of bubble lightweight soil is easy to control.
As shown in Figure 4 and Figure 5, the generating process of bubble is that foaming agent adds water to generate expanding foam solution, and expanding foam solution adds compressed air
Generate bubble；The generating process of Foam lightweight soil be by cementitious material, admixture, gathering materials is mixed to get cement slurry with water, by water
Mud and bubble are mixed to get Foam lightweight soil.
Further, the wet density of the surface layer 4 is 5.5KN/m3~6.0KN/m3, compression strength is 0.6MPa~0.8MPa,
In practical applications, it is commonly designed wet density 6.0KN/m3, compression strength 0.8MPa or wet density 5.5KN/m3, compression strength
0.6MPa, this is the more excellent design value in engineering practice.
In order to obtain the final match ratio under above-mentioned design objective, the following test of design:
Q1: it by foaming agent by 40 times of dilutions, weighs 1 part of foaming agent and exchanges uniform stirring with 39 parts of water；
Q2: expanding foam solution being foamed by foam device by 20 multiplying powers, bubble be made, and weighing bubble density at this time is 50 ± 2g/
L；
Q3: cement and water are weighed by calculating, and is stirred evenly；
Q4: weighing bubble by calculating, be added in the cement slurry stirred evenly, is again stirring for so that bubble is evenly dispersed
In cement slurry, foams mix light soil is made；
Q5: the density and fluidity of measurement foams mix light soil, and record；
Q6: entering mould for matched foams mix light soil, totally two groups, one group 7 days, one group 28 days, reference block 100mm*
100mm*100mm。
Trial dosage and result are as follows:
Final match ratio is selected according to above-mentioned test result:
A, wet density 6.0KN/m is designed3, compression strength 0.8MPa.
| Number | Cement (kg/m3) | Water (kg/m3) | Bubble (L/m3) |
| 2 | 350 | 215 | 672 |
B, wet density 5.5KN/m is designed3, compression strength 0.6MPa.
| Number | Cement (kg/m3) | Water (kg/m3) | Bubble (L/m3) |
| 5 | 320 | 195 | 702 |
Further, it in order to reduce the resolution amount of bubble during transportation, is adopted when pouring Foam lightweight soil in the step d
It is pumped with pipeline.
When using pipeline pumping, using disperser, the disperser includes bracket 51 and hard delivery pipe 52, described hard
The both ends of matter delivery pipe 52 are erected on the bracket 51, and one end closing, the other end is connect with pipeline, and lower surface is equipped with more
A equally distributed dumping pit 521.In practice of construction, two brackets 51 are respectively arranged on roadbed two sides, hard delivery pipe
52 both ends are erected on respectively on two brackets 51, i.e., hard delivery pipe 52 is across roadbed, the bubble to be come by pipeline
Foam light soil is flowed out after entering hard delivery pipe 52 by the discharge port, is dropped down on roadbed, since dumping pit 521 is to be uniformly distributed
, so Foam lightweight soil can be dropped down onto equably on roadbed, without more polishing operation, this can effectively be avoided pressing
Contracting bubble and defoaming can make effective control to the bulk density of Foam lightweight soil.
Further, more uniform in order to discharge, the caliber of the hard delivery pipe 52 is connect by it with pipeline
One end be gradually increased to the other end.Under this structure setting, Foam lightweight soil can be more easily defeated full of the hard
Pipe 52 is sent, so as to uniformly draw off from equally distributed dumping pit 521.
The bracket 51 and hard delivery pipe 52, which can be selected, to be made of a steel, in the settable pulley in bottom of the bracket 51
It is moved easily.
The above-mentioned description to embodiment be for convenient for those skilled in the art understand and using the present invention, it is ripe
The personnel for knowing art technology obviously easily can make various modifications to embodiment, and General Principle described herein is answered
It uses in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, art technology
Personnel's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be in protection models of the invention
Within enclosing.
Claims (9)
1. a kind of air bubble mix light-textured soil construction technology, which comprises the steps of:
A. substrate (1) is excavated, substrate (1) is tamped；
B. it is laid with rubble on substrate (1), is formed bed course (2)；
C., multiple locating pieces are set, the locating piece includes locating pin (31) and ontology, the ontology include locating piece (32) and
Reinforcing bar (33), multiple reinforcing bars (33) in petal-shaped arrangement be connected on the locating piece (32), the locating pin (31) by
The locating piece (32) is sequentially passed through under and bed course (2) is inserted into afterwards in the substrate (1)；
D. Foam lightweight soil is poured, is formed surface layer (4), the surface layer (4) floods the locating piece.
2. a kind of air bubble mix light-textured soil construction technology according to claim 1, which is characterized in that substrate in the step a
(1) side is in step-like.
3. wanting a kind of 1 air bubble mix light-textured soil construction technology according to right, which is characterized in that pour bubble in the step d
Thickness is once constructed when foam light soil between 0.25m~1m.
4. a kind of air bubble mix light-textured soil construction technology according to claim 1, which is characterized in that the step c and step d
Between further include step t, the step t includes: 1. to generate bubble；2. preparing cement slurry；3. bubble is mixed with cement slurry, obtain
To Foam lightweight soil.
5. a kind of air bubble mix light-textured soil construction technology according to claim 4, which is characterized in that 1. the step is specially
Foaming agent solution is foamed by foam device, obtains bubble；2. the step is specially that base material, curing materials and water is uniform
Mixing, mixing is at cement slurry.
6. a kind of air bubble mix light-textured soil construction technology according to claim 1, which is characterized in that the surface layer (4) it is wet
Bulk density is 5.5KN/m3~6.0KN/m3, compression strength is 0.6MPa~0.8MPa.
7. according to claim 1 to a kind of foams mix light soil construction method described in any one of 6, which is characterized in that described
It is pumped when pouring Foam lightweight soil in step d using pipeline.
8. a kind of air bubble mix light-textured soil construction technology according to claim 7, which is characterized in that pumped using pipeline
When, using disperser, the disperser includes bracket (51) and hard delivery pipe (52), the both ends of the hard delivery pipe (52)
It is erected on the bracket (51), one end closing, the other end connect with pipeline, and lower surface equally distributed is unloaded equipped with multiple
Expect hole (521).
9. a kind of air bubble mix light-textured soil construction technology according to claim 8, which is characterized in that the hard delivery pipe
(52) caliber is gradually increased from its one end connecting with pipeline to the other end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695043.9A CN110485229B (en) | 2019-07-30 | 2019-07-30 | Construction process for bubble mixed light soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695043.9A CN110485229B (en) | 2019-07-30 | 2019-07-30 | Construction process for bubble mixed light soil |
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| CN110485229A true CN110485229A (en) | 2019-11-22 |
| CN110485229B CN110485229B (en) | 2021-07-16 |
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2019
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| JP2014047565A (en) * | 2012-08-31 | 2014-03-17 | Maeda Corp | Liquefaction countermeasure construction method for ground |
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