CN107500626A - The preparation method of mud mixing pile - Google Patents
The preparation method of mud mixing pile Download PDFInfo
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- CN107500626A CN107500626A CN201710756430.XA CN201710756430A CN107500626A CN 107500626 A CN107500626 A CN 107500626A CN 201710756430 A CN201710756430 A CN 201710756430A CN 107500626 A CN107500626 A CN 107500626A
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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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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Organic Chemistry (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
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Abstract
The present invention relates to a kind of preparation method of mud mixing pile.The preparation method of the mud mixing pile includes as follows：By sodium carbonate, calcium chloride, lithium magnesium silicate, bauxite, gas mud, sodium metasilicate, blast furnace ash, polyacrylamide, sodium carboxymethylcellulose, polyvinyl alcohol, wooden sodium sulfonate, sodium hydroxide, magnesium hydroxide, prodan, cement and water mix, obtain slurry；Slurry and mud are mixed in foundation ditch, then curing, the formation mud mixing pile at 25 DEG C~35 DEG C.The preparation method of above-mentioned mud mixing pile can make mud by recycling, to reduce the wasting of resources in Process of Engineering Construction as much as possible.
Description
Technical field
The present invention relates to field of civil engineering, more particularly to a kind of preparation method of mud mixing pile.
Background technology
The outdoor accumulation of mud is generally excavated in the processing of traditional Silt Soft Groundwork and landfill, this processing mode not only account for
With idle land, the serious wasting of resources is caused, while easily surrounding enviroment are formed with pollution, threatens nearby residents person peace
Entirely.
The content of the invention
Based on this, it is necessary to provide a kind of preparation method of mud mixing pile, mud can be made by recycling, with as far as possible
Ground reduces the wasting of resources in Process of Engineering Construction.
A kind of preparation method of mud mixing pile, comprises the following steps：
According to mass fraction meter, by 0.04 part~0.08 part of sodium carbonate, 0.04 part~0.08 part of calcium chloride, 0.004
Part~0.008 part of lithium magnesium silicate, 0.04 part~0.08 part of bauxite, 0.02 part~0.04 part of gas mud, 0.45 part~
0.75 part of sodium metasilicate, 0.3 part~0.5 part of blast furnace ash, 0.03 part~0.05 part of polyacrylamide, 0.015 part~0.025
Part sodium carboxymethylcellulose, 0.06 part~0.1 part of polyvinyl alcohol, 0.008 part~0.013 part of wooden sodium sulfonate, 0.15
Part~0.25 part of sodium hydroxide, 0.15 part~0.25 part of magnesium hydroxide, 0.03 part~0.05 part of prodan, 6 parts~
10 parts of cement and water mixing, obtains slurry；And
It is 1 according to mass ratio:100, the slurry and mud are mixed in foundation ditch, then solidify at 25 DEG C~35 DEG C and support
Shield, form mud mixing pile.
The preparation method of above-mentioned mud mixing pile in foundation ditch by directly mixing mud with the slurry of above-mentioned formula, just
The mud mixing pile with certain bearing capacity can be formed by curing under 25 DEG C~35 DEG C (normal temperature) to gib, to carry
High foundation strength, and it is used as operating personnel's passage of walking and construct to use, not simply just by mud simply recycling, and
Pollution of the disposal to environment of project silt can also be efficiently reduced.
In one of the embodiments, the preparation process of the slurry is specially：
The lithium magnesium silicate and water are mixed to get the first suspension, and add water to mix the bauxite, the gas mud
Close formation and be mixed to get the second suspension, then mix first suspension and second suspension, add described
Sodium carbonate and the calcium chloride, obtain first compound；The sodium metasilicate and the prodan are mixed, then successively
The aqueous solution of the wooden sodium sulfonate, the polyacrylamide and sodium carboxymethylcellulose is added, adds the blast furnace ash, institute
Sodium hydroxide and the magnesium hydroxide are stated, is eventually adding the aqueous solution of polyvinyl alcohol, it is blended, obtain second compound；
By first compound, second compound and the cement mixing, the slurry is obtained.
In one of the embodiments, the quality of the sodium carboxymethylcellulose in the aqueous solution of the sodium carboxymethylcellulose
Percentage concentration is 5%.
In one of the embodiments, the mass percentage concentration of the polyvinyl alcohol in the aqueous solution of the polyvinyl alcohol is
5%.
In one of the embodiments, the mass water content of the slurry is not higher than 50%.
In one of the embodiments, it is described by 0.04 part~0.08 part of sodium carbonate, 0.04 part~0.08 part of chlorination
Calcium, 0.004 part~0.008 part of lithium magnesium silicate, 0.04 part~0.08 part of bauxite, 0.02 part~0.04 part of gas mud,
0.45 part~0.75 part of sodium metasilicate, 0.3 part~0.5 part of blast furnace ash, 0.03 part~0.05 part of polyacrylamide, 0.015
Part~0.025 part of sodium carboxymethylcellulose, 0.06 part~0.1 part of polyvinyl alcohol, 0.008 part~0.013 part of wooden sulphur
Sour sodium, 0.15 part~0.25 part of sodium hydroxide, 0.15 part~0.25 part of magnesium hydroxide, 0.03 part~0.05 part of fluosilicic acid
In the step of sodium, 6 parts~10 parts of cement and water mix, the mass water content of the mud is below 60%.
In one of the embodiments, the polyacrylamide is anion-polyacrylamide.
In one of the embodiments, in described the step of mixing the slurry and mud in foundation ditch, stirred using three
One spray or two methods for stirring two sprays mix.
In one of the embodiments, described the step of mixing the slurry and mud in foundation ditch, is specially：Becoming silted up
Mud area setting section region is the foundation ditch；The slurry is added by way of whitewashing and stirring in the foundation ditch again, so that
Mud in the foundation ditch mixes with the slurry.
In one of the embodiments, the curing time is 7 days~28 days.
Brief description of the drawings
Fig. 1 is the flow chart of the preparation method of the mud mixing pile of an embodiment；
Fig. 2 is the flow chart of the preparation process of the step S110 of the preparation method of the mud mixing pile shown in Fig. 1 slurry.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the preferred embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more saturating
It is thorough comprehensive.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
As shown in figure 1, the preparation method of the mud mixing pile of an embodiment, comprises the following steps：
Step S110：The preparation of slurry.
Wherein, the preparation process of slurry is：By 0.04 part~0.08 part of sodium carbonate, 0.04 part~0.08 part of chlorination
Calcium, 0.004 part~0.008 part of lithium magnesium silicate, 0.04 part~0.08 part of bauxite, 0.02 part~0.04 part of gas mud,
0.45 part~0.75 part of sodium metasilicate, 0.3 part~0.5 part of blast furnace ash, 0.03 part~0.05 part of polyacrylamide, 0.015
Part~0.025 part of sodium carboxymethylcellulose, 0.06 part~0.1 part of polyvinyl alcohol, 0.008 part~0.013 part of wooden sulphur
Sour sodium, 0.15 part~0.25 part of sodium hydroxide, 0.15 part~0.25 part of magnesium hydroxide, 0.03 part~0.05 part of fluosilicic acid
Sodium, 6 parts~10 parts of cement and water mixing, obtain slurry.
Specifically, step S110 is mixed at 25 DEG C~30 DEG C, i.e. room temperature.
Wherein, gas mud is flocculant, and sodium hydroxide and magnesium hydroxide are alkali-activator, it is possible to increase mud, aluminium alum
The reactivity of soil, gas mud and blast furnace ash；Cement, sodium metasilicate, calcium chloride, bauxite, gas mud, blast furnace ash, sodium carbonate and
Lithium magnesium silicate is inorganic stabilizers material, gel hyrate can be formed by hydration reaction, such as hydrated calcium silicate (C-S-H), water
Change calcium aluminate (C-Al-H), Ca (OH)2Deng to wrap up the soil particle in mud, being interconnected to form eventually through complexing
Stable space net structure, in simultaneous reactions caused entringite acicular crystals can by substantial amounts of Free water in mud with
The form of the crystallization water is fixed up.This hydration reaction into crystalline solid the volume of material is increased, effectively fill mass of soil
The hole of intergranular, solidified earth is set to become densification, further while the soil particle of mud is consolidated between enhancing soil particle
Adhesion strength and stability.In addition, ettringite is needle-like, it is staggeredly interspersed in mass of soil grain, plays the work of " micro- reinforcement "
With increasing the intensity of solidified earth；Sodium carboxymethylcellulose is water-loss reducer, there is provided the moisture content required for continuous hydration reaction, is promoted
Hydration reaction is persistently carried out.
On the other hand, produced after bauxite, gas mud, blast furnace ash, lithium magnesium silicate, magnesium hydroxide and calcium chloride and water effect
Ca2+、Mg2+And Al3+Can be with the Na in soil particle adsorption layer+、K+Ion swaps, and so as to reduce soil particle zeta potential, reduces
The thickness of soil particle electric double layer, make soil particle is close to each other to produce cohesion.
At the same time, polyacrylamide excites the activity of soil particle as polymer exciting agent, makes under excitation
Through the polyvinyl alcohol that prodan is modified and active soil Interaction between particles, adjacent soil particle is on the one hand passed through into macromolecular chain
Bridge mutually overlaps；On the other hand, cross one another entanglement again between macromolecular chain, is finally formed the whole soil body firm overall empty
Between frame structure, while be rapidly reached compacted soil initial cure effect.
Wooden sodium sulfonate uses in system mainly as dispersant, ensures the homogeneity and uniformity of slurry.
Specifically, polyacrylamide is anion-polyacrylamide.The molecular weight of anion-polyacrylamide is higher,
The characteristics of easily utilizing strand, agglomerate aggregation soil particle, improves soil particle consolidation strength.
Specifically, cement is Portland cement.
Specifically, as shown in Fig. 2 the preparation process of slurry is specially：
Step S112：Lithium magnesium silicate and water are mixed to get the first suspension, and add water to mix shape bauxite, gas mud
Into the second suspension is mixed to get, then the first suspension and the second suspension are mixed, sodium carbonate and calcium chloride is added, obtains
To the first compound.
Step S114：Sodium metasilicate and prodan are mixed, then sequentially add wooden sodium sulfonate, polyacrylamide and carboxylic
The aqueous solution of sodium carboxymethylcellulose pyce, blast furnace ash, sodium hydroxide and magnesium hydroxide are added, be eventually adding the water-soluble of polyvinyl alcohol
Liquid, it is blended, obtain the second compound.
Specifically, the mass percentage concentration of the aqueous solution of sodium carboxymethylcellulose is 5%~10%；Polyvinyl alcohol it is water-soluble
The mass percentage concentration of liquid is 5%~10%.
Step S116：By the first compound, the second compound and cement mixing, slurry is obtained.
Specifically, step S112~step S116 is carried out at 25 DEG C~30 DEG C.
Further, before step S110, in addition to by the mass water content control of mud below 60%.More specifically
Ground, it is live drainage by method of the mud water content control below 60%, to reduce water content.If the quality of mud is aqueous
Amount is no more than 60%, then without drain step.
Wherein, the mass water content of the slurry is no more than 50%.
Step S120：It is 1 according to mass ratio:100, slurry and mud are mixed in foundation ditch, then at 25 DEG C~35 DEG C
It is curing, form mud mixing pile.
Further, the step of slurry and mud being mixed in foundation ditch be specially：It is in mud area setting section region
Foundation ditch；Slurry is added by whitewashing to mix in foundation ditch again, so that the mud in foundation ditch mixes with slurry.
Specifically, in the step of slurry and mud being mixed in foundation ditch, a spray or two methods for stirring two sprays are stirred using three
Slurry and mud, i.e., be stirred mixing by mixing using gunite in foundation ditch, is avoided and is transported the drying for excavating mud
Defeated landfill, saves manpower and materials.
Specifically, the curing time is 7 days~28 days.
The preparation method of above-mentioned mud mixing pile is by directly mixing mud with the slurry of above-mentioned formula, it becomes possible to 25
DEG C~35 DEG C (normal temperature) under be formed by curing the mud mixing pile with certain bearing capacity, to improve foundation strength, and be used as and make
Industry personnel walk and vehicle driving passage uses, not simply just by mud simply recycling, but also can efficiently reduce work
Pollution of the disposal of journey mud to environment, construction operation caused by also effectively reducing soft foundation are difficult.It the experiment proved that,
The mud mixing pile of the preparation of above-mentioned mud mixing pile has good unconfined compressive strength.
And the preparation method of above-mentioned mud mixing pile can allow mud rapid curing, make soft foundation solid within a short period of time
Change is handled.Meanwhile the preparation method of above-mentioned mud mixing pile is simple to operate, is easy to engineering site application.
For embodiment part, (following examples unless otherwise specified, are not then contained in addition to inevitable impurity below
Other components for pointing out are not known.)：
Embodiment 1
The preparation process of the mud mixing pile of the present embodiment is as follows：
(1) the following raw material is weighed according to mass fraction：0.08 part of sodium carbonate, 0.08 part of calcium chloride, 0.008 part of silicon
Sour magnesium lithium, 0.08 part of bauxite and 0.04 part of gas mud；It is 1 according to mass ratio under the conditions of 25 DEG C:5 by lithium magnesium silicate
The first suspension is mixed to form with water, bauxite, gas mud and water are mixed to form the second suspension, by the first suspension and
Two suspension mix, and then add sodium carbonate and calcium chloride is stirred, obtain the first compound.
(2) the following raw material is weighed according to mass fraction：0.75 part of sodium metasilicate, 0.5 part of blast furnace ash, 0.05 part it is cloudy from
Subtype polyacrylamide, 0.025 part of sodium carboxymethylcellulose, 0.1 part of polyvinyl alcohol, 0.013 part of wooden sodium sulfonate,
0.25 part of sodium hydroxide, 0.25 part of magnesium hydroxide and 0.05 part of prodan；Sodium carboxymethylcellulose is mixed with water,
Form the aqueous solution for the sodium carboxymethylcellulose that mass percentage concentration is 8%；Dissolve polyvinyl alcohol in water, form quality hundred
Divide the aqueous solution for the polyvinyl alcohol that concentration is 8%；Under the conditions of 25 DEG C, sodium metasilicate and prodan are mixed, then added successively
Enter the aqueous solution of wooden sodium sulfonate, polyacrylamide and sodium carboxymethylcellulose, add blast furnace ash, sodium hydroxide and hydroxide
Magnesium, the aqueous solution of polyvinyl alcohol is eventually adding, the second compound is obtained after mixing.
(3) under the conditions of 25 DEG C, the second compound, the first compound, the cement of 10 mass parts and water are stirred, with
Obtain the slurry that mass water content is 50%.
(4) it is foundation ditch in mud area setting section region, and the mass water content for determining the mud in foundation ditch is 60%, so
It is afterwards 1 according to the mass ratio of slurry and mud:100 mud by slurry by way of three stir a spray in foundation ditch and in foundation ditch
It is sufficiently mixed, then curing conservation 28 days at 25 DEG C, obtain mud mixing pile.
Code requirement according to supporting cement mixing method in GB 50202 to strength of the mixing pile, with reference to nothing in GB/T50123
The method of testing of confined compressive strength, the mud mixing pile of the present embodiment is tested during the curing conservation of 7,14 and 28 days
Unconfined compressive strength is shown in Table 1.
Embodiment 2
The preparation process of the mud mixing pile of the present embodiment is as follows：
(1) the following raw material is weighed according to mass fraction：0.04 part of sodium carbonate, 0.04 part of calcium chloride, 0.004 part of silicon
Sour magnesium lithium, 0.04 part of bauxite and 0.02 part of gas mud；It is 1 according to mass ratio under the conditions of 30 DEG C:5 by lithium magnesium silicate
The first suspension is mixed to form with water, bauxite, gas mud and water are mixed to form the second suspension, by the first suspension and
Two suspension mix, and then add sodium carbonate and calcium chloride is stirred, obtain the first compound.
(2) the following raw material is weighed according to mass fraction：0.45 part of sodium metasilicate, 0.3 part of blast furnace ash, 0.03 part it is cloudy from
Subtype polyacrylamide, 0.015 part of sodium carboxymethylcellulose, 0.06 part of polyvinyl alcohol, 0.008 part of wooden sodium sulfonate,
0.15 part of sodium hydroxide, 0.15 part of magnesium hydroxide and 0.03 part of prodan；Sodium carboxymethylcellulose is mixed with water,
Form the aqueous solution for the sodium carboxymethylcellulose that mass percentage concentration is 5%；Dissolve polyvinyl alcohol in water, form quality hundred
Divide the aqueous solution for the polyvinyl alcohol that concentration is 5%；Under the conditions of 30 DEG C, sodium metasilicate and prodan are mixed, then added successively
Enter the aqueous solution of wooden sodium sulfonate, polyacrylamide and sodium carboxymethylcellulose, add blast furnace ash, sodium hydroxide and hydroxide
Magnesium, the aqueous solution of polyvinyl alcohol is eventually adding, the second compound is obtained after mixing.
(3) under the conditions of 30 DEG C, the second compound, the first compound, the cement of 6 mass parts and water are stirred, with
Obtain the slurry that mass water content is 50%.
(4) it is foundation ditch in mud area setting section region, and the mass water content for determining the mud in foundation ditch is 40%, so
It is afterwards 1 according to the mass ratio of slurry and mud:100 mud by slurry by way of three stir a spray in foundation ditch and in foundation ditch
It is sufficiently mixed, then curing conservation 28 days at 30 DEG C, obtain mud mixing pile.
The mud mixing pile that the present embodiment is obtained using the identical method of testing of embodiment 1 was supported in the solidification of 7,14 and 28 days
Unconfined compressive strength during shield is shown in Table 1.
Embodiment 3
The preparation process of the mud mixing pile of the present embodiment is as follows：
(1) the following raw material is weighed according to mass fraction：0.06 part of sodium carbonate, 0.06 part of calcium chloride, 0.006 part of silicon
Sour magnesium lithium, 0.06 part of bauxite and 0.03 part of gas mud；It is 1 according to mass ratio under the conditions of 28 DEG C:5 by lithium magnesium silicate
The first suspension is mixed to form with water, bauxite, gas mud and water are mixed to form the second suspension, by the first suspension and
Two suspension mix, and then add sodium carbonate and calcium chloride is stirred, obtain the first compound.
(2) the following raw material is weighed according to mass fraction：0.45 part of sodium metasilicate, 0.3 part of blast furnace ash, 0.03 part it is cloudy from
The polyacrylamide of subtype, 0.015 part of sodium carboxymethylcellulose, 0.06 part of polyvinyl alcohol, 0.008 part of lignosulfonic acid
Sodium, 0.15 part of sodium hydroxide, 0.15 part of magnesium hydroxide and 0.03 part of prodan；Sodium carboxymethylcellulose and water are mixed
Close, form the aqueous solution for the sodium carboxymethylcellulose that mass percentage concentration is 10%；Dissolve polyvinyl alcohol in water, form matter
Measure the aqueous solution for the polyvinyl alcohol that percentage concentration is 10%；Under the conditions of 28 DEG C, sodium metasilicate and prodan are mixed, then according to
The secondary aqueous solution for adding wooden sodium sulfonate, polyacrylamide and sodium carboxymethylcellulose, adds blast furnace ash, sodium hydroxide and hydrogen
Magnesia, the aqueous solution of polyvinyl alcohol is eventually adding, the second compound is obtained after mixing.
(3) under the conditions of 28 DEG C, the second compound, the first compound, 8 parts of cement and water are stirred, to obtain
Mass water content is 40% slurry.
(4) it is foundation ditch in mud area setting section region, and the mass water content for determining the mud in foundation ditch is 50%, so
It is afterwards 1 according to the mass ratio of slurry and mud:100 mud by slurry by way of three stir a spray in foundation ditch and in foundation ditch
It is sufficiently mixed, then curing conservation 28 days at 28 DEG C, obtain mud mixing pile.
The mud mixing pile that the present embodiment is obtained using the identical method of testing of embodiment 1 was supported in the solidification of 7,14 and 28 days
Unconfined compressive strength during shield is shown in Table 1.
Embodiment 4
The preparation process of the mud mixing pile of the present embodiment is as follows：
(1) the following raw material is weighed according to mass fraction：0.08 part of sodium carbonate, 0.08 part of calcium chloride, 0.008 part of silicon
Sour magnesium lithium, 0.08 part of bauxite and 0.04 part of gas mud；It is 1 according to mass ratio under the conditions of 25 DEG C:5 by lithium magnesium silicate
The first suspension is mixed to form with water, bauxite, gas mud and water are mixed to form the second suspension, by the first suspension and
Two suspension mix, and then add sodium carbonate and calcium chloride is stirred, obtain the first compound.
(2) the following raw material is weighed according to mass fraction：0.75 part of sodium metasilicate, 0.5 part of blast furnace ash, 0.05 part it is cloudy from
Subtype polyacrylamide, 0.025 part of sodium carboxymethylcellulose, 0.1 part of polyvinyl alcohol, 0.013 part of wooden sodium sulfonate,
0.25 part of sodium hydroxide, 0.25 part of magnesium hydroxide and 0.05 part of prodan；Sodium carboxymethylcellulose is mixed with water,
Form the aqueous solution for the sodium carboxymethylcellulose that mass percentage concentration is 5%；Dissolve polyvinyl alcohol in water, form quality hundred
Divide the aqueous solution for the polyvinyl alcohol that concentration is 5%；Under conditions of 35 DEG C, sodium metasilicate and prodan are mixed, then successively
The aqueous solution of wooden sodium sulfonate, polyacrylamide and sodium carboxymethylcellulose is added, adds blast furnace ash, sodium hydroxide and hydrogen-oxygen
Change magnesium, be eventually adding the aqueous solution of polyvinyl alcohol, the second compound is obtained after mixing.
(3) under the conditions of 35 DEG C, the second compound, the first compound, 8 parts of cement and water are stirred, to obtain
Mass water content is 45% slurry.
(4) it is foundation ditch in mud area setting section region, and the mass water content for determining the mud in foundation ditch is 70%, it is right
Mud in foundation ditch carries out draining until the quality moisture content of mud is 60%, is then 1 according to the mass ratio of slurry and mud:
100 are sufficiently mixed mud of the slurry by way of three stir a spray in foundation ditch and in foundation ditch, then solidify at 35 DEG C and support
Shield 28 days, obtains mud mixing pile.
The mud mixing pile that the present embodiment is obtained using the identical method of testing of embodiment 1 was supported in the solidification of 7,14 and 28 days
Unconfined compressive strength during shield is shown in Table 1.
Comparative example 1
Comparative example 1 is conventional mud mixing pile.
(1) the following raw material is weighed according to mass fraction：The silt that 10 parts of cement, 5 parts of water and 100 parts of quality moisture content are 60%
Mud.
(2) cement and water are mixed to form slurry, are foundation ditch in mud area setting section region, slurry is then passed through three
The mode for stirring a spray is sufficiently mixed in foundation ditch with mud, and curing conservation 28 days at 25 DEG C, obtains mud mixing pile.
The mud mixing pile that comparative example 1 is obtained using the identical method of testing of embodiment 1 was supported in the solidification of 7,14 and 28 days
Unconfined compressive strength during shield is shown in Table 1.
What table 1 represented is the mud mixing pile of embodiment 1~4 and comparative example 1 in the curing conservation mistake of 7,14 and 28 days
Unconfined compressive strength in journey.
Table 1
From table 1 it follows that unconfined compressive strength of the mud mixing pile of embodiment 1~4 at 7 days is at least
0.6MPa, and the unconfined compressive strength of the mud mixing pile of comparative example 1 is only 0.5MPa, it is clear that the mud of embodiment 1~4
Mixing pile has more preferable curing efficiency and Silt Soft Groundwork sealing ability, and after solidification 28 days, embodiment 1~4
The unconfined compressive strength of mud mixing pile can reach 2.8MPa, and comparative example 1 is used as the mud of curing materials only by the use of cement
It is only 1.0 that mixing pile, which solidifies the compression strength of 28 days, i.e. the mud mixing pile of embodiment 1~4 have more preferable bearing capacity and
Soft foundation sealing performance.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of preparation method of mud mixing pile, it is characterised in that comprise the following steps：
According to mass fraction meter, by 0.04 part~0.08 part of sodium carbonate, 0.04 part~0.08 part of calcium chloride, 0.004 part~
0.008 part of lithium magnesium silicate, 0.04 part~0.08 part of bauxite, 0.02 part~0.04 part of gas mud, 0.45 part~0.75
Part sodium metasilicate, 0.3 part~0.5 part of blast furnace ash, 0.03 part~0.05 part of polyacrylamide, 0.015 part~0.025 part
Sodium carboxymethylcellulose, 0.06 part~0.1 part of polyvinyl alcohol, 0.008 part~0.013 part of wooden sodium sulfonate, 0.15 part~
0.25 part of sodium hydroxide, 0.15 part~0.25 part of magnesium hydroxide, 0.03 part~0.05 part of prodan, 6 parts~10 parts
Cement and water mixing, obtain slurry；And
It is 1 according to mass ratio:100, the slurry and mud are mixed in foundation ditch, then at 25 DEG C~35 DEG C it is curing,
Form mud mixing pile.
2. the preparation method of mud mixing pile according to claim 1, it is characterised in that the preparation process tool of the slurry
Body is：
The lithium magnesium silicate and water are mixed to get the first suspension, and add water to mix shape the bauxite, the gas mud
Into the second suspension is mixed to get, then first suspension and second suspension are mixed, add the carbonic acid
Sodium and the calcium chloride, obtain first compound；The sodium metasilicate and the prodan are mixed, then sequentially added
The aqueous solution of the wooden sodium sulfonate, the polyacrylamide and sodium carboxymethylcellulose, add the blast furnace ash, the hydrogen
Sodium oxide molybdena and the magnesium hydroxide, the aqueous solution of polyvinyl alcohol is eventually adding, it is blended, obtain second compound；By institute
The first compound, second compound and the cement mixing are stated, obtains the slurry.
3. the preparation method of mud mixing pile according to claim 2, it is characterised in that the sodium carboxymethylcellulose
The mass percentage concentration of sodium carboxymethylcellulose in the aqueous solution is 5%~10%.
4. the preparation method of mud mixing pile according to claim 2, it is characterised in that the aqueous solution of the polyvinyl alcohol
In polyvinyl alcohol mass percentage concentration be 5%~10%.
5. the preparation method of mud mixing pile according to claim 1, it is characterised in that the mass water content of the slurry
Not higher than 50%.
6. the preparation method of mud mixing pile according to claim 1, it is characterised in that described by 0.04 part~0.08 part
Sodium carbonate, 0.04 part~0.08 part of calcium chloride, 0.004 part~0.008 part of lithium magnesium silicate, 0.04 part~0.08 part of aluminium
Alumina, 0.02 part~0.04 part of gas mud, 0.45 part~0.75 part of sodium metasilicate, 0.3 part~0.5 part of blast furnace ash, 0.03
Part~0.05 part of polyacrylamide, 0.015 part~0.025 part of sodium carboxymethylcellulose, 0.06 part~0.1 part of polyethylene
Alcohol, 0.008 part~0.013 part of wooden sodium sulfonate, 0.15 part~0.25 part of sodium hydroxide, 0.15 part~0.25 part of hydrogen-oxygen
Change in the step of magnesium, 0.03 part~0.05 part of prodan, 6 parts~10 parts of cement and water mix, the quality of the mud
Water content is below 60%.
7. the preparation method of mud mixing pile according to claim 1, it is characterised in that the polyacrylamide for it is cloudy from
Subtype polyacrylamide.
8. the preparation method of mud mixing pile according to claim 1, it is characterised in that described by the slurry and mud
In the step of being mixed in foundation ditch, stir a spray using three or two methods for stirring two sprays mix.
9. the preparation method of mud mixing pile according to claim 1, it is characterised in that described by the slurry and mud
It is specially the step of mixing in foundation ditch：It is the foundation ditch in mud area setting section region；Pass through spray in the foundation ditch again
The mode of slurry stirring adds the slurry, so that the mud in the foundation ditch mixes with the slurry.
10. the preparation method of mud mixing pile according to claim 1, it is characterised in that the time conserved admittedly is 7
My god~28 days.
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