CN108003821A - A kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter - Google Patents
A kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter Download PDFInfo
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- CN108003821A CN108003821A CN201711255183.1A CN201711255183A CN108003821A CN 108003821 A CN108003821 A CN 108003821A CN 201711255183 A CN201711255183 A CN 201711255183A CN 108003821 A CN108003821 A CN 108003821A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J151/00—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J151/006—Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers grafted on to block copolymers containing at least one sequence of polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F287/00—Macromolecular compounds obtained by polymerising monomers on to block polymers
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1804—C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2201/011—Nanostructured additives
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Abstract
The invention discloses a kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter, its key points of the technical solution are that including the following steps：（1）Boundary of works area delimited, excavates roadbed groove, and be laid with sand stone layer；（2）Pour pressure sensitive adhesive layer；（3）It is laid with reinforcement cage skeleton；（4）Pile pile is inserted into, one end of pile pile passes through pressure sensitive adhesive layer and injects in sand stone layer, the other end vertically upwardly extends；（5）Crushed stone layer, volcano rock stratum, concrete layer are laid with successively；（6）It is solid；The hardening time of pressure sensitive adhesive layer is longer, pile pile is injected in sand stone layer, after heavy duty presses, pressure sensitive adhesive layer has good stickiness, it can be bonded in securely on the tube wall of pile pile, after heavy duty presses, the height of immersed tube bottom is consistent, and significantly improves the stability bearing load for reinforcing section.
Description
Technical field
The present invention relates to road construction, the soft soil roadbed reinforcing construction process of more particularly to a kind of deep ＆ thick silt matter.
Background technology
As civilian infrastructure construction continues to develop, it is many effective that Municipal Road Engineering occurs in the construction of weak soil section
Construction technology.But have considerable muddy soft soil in coastal area, and muddy soft soil layer is thicker, and some areas are very
To more than 15 meters.For so deep Soft Roadbed, its embankment stability is very poor, uses to change in the prior art and fills out, arranges
The conventional construction method consolidation process such as water plate consolidation, powder-spray pile, cement mixing pile, but construction quality is difficult to reach ideal
Effect, the settlement after construction in its reinforcing soft foundation section and to jump car phenomenon extremely serious.
At present, the Chinese patent that application publication number is CN105625301A in existing patent discloses a kind for the treatment of of soft foundation and applies
Immersed tube, is sunk to the below ground of soft base by work technique, and is constructed by the way of vibration sinking tube, plays enhancing soft base face
The effect of intensity.
It is but adjacent immersed tube is typically what is be oppositely arranged in the prior art, its is buried behind underground, when diverse location
When immersed tube presses by heavy duty, it may occur that different degrees of sedimentation, causes the vertical height of immersed tube bottom inconsistent, it is soft to influence this
Base reinforces the stability bearing load in section.
The content of the invention
The object of the present invention is to provide a kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter, presses by heavy duty
Afterwards, the height of immersed tube bottom is consistent, and significantly improves the stability bearing load for reinforcing section.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter, includes the following steps：
(1) boundary of works area delimited, roadbed groove is excavated on soft base, is laid with sand stone layer；
(2) to pouring pressure sensitive adhesive layer in sand stone layer, water velocity is 5~10m2/min；
(3) and then by reinforcement cage skeleton it is laid on pressure sensitive adhesive layer；
(4) the equidistant insertion pile pile into reinforcement cage skeleton, one end of pile pile through pressure sensitive adhesive layer and inject in sand stone layer,
The other end vertically upwardly extends；
(5) crushed stone layer, volcano rock stratum, concrete layer are laid with successively on reinforcement cage skeleton；
(6) with 5t/m on concrete layer2Heavy duty pressure 15~20 days carry out it is solid.
By using above-mentioned technical proposal, pressure sensitive adhesive layer is poured in sand stone layer, during the curing of pressure sensitive adhesive layer
Between it is longer, by pile pile inject sand stone layer in, reinforcement cage skeleton constrains adjacent pile pile in the horizontal direction, is applied by heavy duty
After pressure, pressure sensitive adhesive layer has good stickiness, can be bonded in securely on the tube wall of pile pile, avoid pile pile bottom
Inconsistent sinking occurs in the vertical direction, so as to effectively be reinforced to soft soil roadbed.
The present invention is further arranged to：Pressure sensitive adhesive layer pours shape using acrylate-SEBS copolymers in step (3)
Into.
By using above-mentioned technical proposal, acrylate-SEBS copolymers have and are built with inorganic as binding agent for building
Build the good cementation of material.Esters of acrylic acid adhesive ambient temperature curable, curing rate is moderate, the anti-heavily loaded intensity of glue-line
Height, has excellent outdoor resistance to ag(e)ing and preferable water resistance, and special place is not required in good fluidity, adherend surface
Reason, cured glue layer surface are smooth；SEBS thermoplastic elastomer (TPE)s are using polystyrene as end segment, are hydrogenated with to obtain with polybutadiene
Ethylene-butene copolymer be intermediate elastic block linear tri-block copolymer, SEBS be free of unsaturated double-bond, therefore has good
Good stability and resistance to ag(e)ing；Acrylate-SEBS copolymers are excellent with acrylate and SEBS thermoplastic elastomer (TPE)s
Point, SEBS thermoplastic elastomer (TPE)s are grafted on the strand of acrylate, are improved the toughness of acrylate adhesive, are contributed to
Strengthen coating performance of the copolymer in sand stone layer, so as to ensure higher with the adhesive strength of sandstone layer surface.
The present invention is further arranged to：Acrylate-SEBS the copolymers include the component of following parts by weight：Acrylic acid
20~25 parts of methyl esters, 5~10 parts of Isooctyl acrylate monomer, 10~12 parts of SEBS thermoplastic elastomer (TPE)s, reinforcer inclusion enclave 10~
20 parts, 5~10 parts of acrylic emulsion film forming matter, N, 1~3 part of N methylene-bisacrylamides, 0.5~1 part of cumyl peroxide
With 3~5 parts of acrylic acid dispersant.
By using above-mentioned technical proposal, methyl acrylate is a kind of volatile unsaturated methyl ester, as organic conjunction
Into the monomer of intermediate, and synthesising macromolecule copolymer, apply in adhesive；
Isooctyl acrylate monomer is a kind of important Organic Chemicals, can be homogeneous poly- as the monomer of homogeneous polymerization or combined polymerization
Compound PMMA is the plastics of water white transparency, is easily worked shaping and toning, can be used to produce organic glass, manufacture other resins,
Plastics, coating, adhesive, lubricant, timber and the size of cork, the penetrant of electrical-coil, paper polish agent, printing and dyeing help
Agent and insulating potting material etc.；
SEBS thermoplastic elastomer (TPE)s are to be made double bond saturation by extraordinary type SBS hydrogenation and be made, and SEBS thermoplastic elastomer (TPE)s compare
It is hard, rigidity it is stronger, modulus is higher, compressive strength rate hydrogenation before be significantly increased, and to photooxidation, the ageing-resistant performance of ozone compared with
It is good, also with excellent resistance to ag(e)ing, not only with plasticity, but also there is high resiliency, use can be processed without vulcanization；
Reinforcer inclusion enclave helps to improve the compression strength of pressure sensitive adhesive layer, while improves inorganic reinforcing filler pressure-sensitive
Dispersiveness in type adhesive layer, and the adhesion property with sand stone layer；
Acrylic emulsion film forming matter is a heterogeneous dispersion liquid, by many polymer particles groups in a continuous water phase
Into when water is gradually evaporated or absorbed by porous surface, disperse phase concentration gradually increases, these polymer particles just slowly connect
Closely, interparticle distance is contacted with each other between final particle from diminution, starts to produce condensation, moisture continues to reduce at this time, polymer particle
Contact is closer, then forms tiny capillary between particles, and the effect of capillary force promotes polymer to be formed thin from sticking
Film, acrylic emulsion film forming matter help to improve the amalgamation between each component in system；
N, N methylene-bisacrylamide are a kind of crosslinking agents, help to trigger esters of acrylic acid to send out with SEBS thermoplastic elastomer (TPE)s
Raw combined polymerization；
By above-mentioned each component, it is good to prepare acrylate-SEBS copolymers and the stickiness of sandstone layer surface of formation, helps
In keeping firm attachment state with sandstone layer surface, while there is good pliability, higher compression strength etc.；Work as heavy duty
When persistently pressing on the pressure sensitive adhesive layer, acrylate-SEBS copolymers carry out secondary graft reaction, help to strengthen
The adhesive property of pressure sensitive adhesive layer.
The present invention is further arranged to：The range of viscosities of the acrylic emulsion film forming matter is in 300~350mpas.
By using above-mentioned technical proposal, the viscosity of restriction acrylic emulsion film forming matter is very crucial, and viscosity exceedes
During 350mpas, since viscosity is too big, acrylic emulsion film forming matter easily produces unity, while influences the pressure sensitive adhesive layer
Mobility；And if the viscosity of acrylic emulsion film forming matter, when being less than 300mpas, acrylic emulsion film forming matter is in sand stone layer
Adhesive force it is relatively low, be unfavorable for being bonded for the pressure sensitive adhesive layer and sandstone layer surface.
The present invention is further arranged to：The reinforcer inclusion enclave is to reinforcer using polyborosiloxane molten liquid
Wrapped up, the weight ratio of reinforcer and polyborosiloxane is 2：1, cryogenic freezing 24h is carried out at -40 DEG C after parcel, it is cold
20~40min of high temperature sintering is carried out after jelly at 300~320 DEG C, body to be sintered is crushed after being cooled to room temperature.
By using above-mentioned technical proposal, polyborosiloxane carries out high-temperature fusion, and reinforcer is infiltrated in poly- borosilicate oxygen
In alkane molten liquid, molten liquid wraps up reinforcer, and reinforcer inclusion enclave is placed in crucible and is carried out at -40 DEG C
Cryogenic freezing 24h, is crushed, contributes to polyborosiloxane strand again after then carrying out high temperature sintering at 300~320 DEG C
Preferably combined with inorganic nano group, while the compatibility between pressure sensitive adhesive layer and sand stone layer can be improved.
The present invention is further arranged to：Reinforcer is included at least one in nano-calcium carbonate, nano silicon dioxide, talcum powder
Kind.
By using above-mentioned technical proposal, nano-calcium carbonate is also known as super fine calcium carbonate, can improve plastic products processing
During mobility, improve its mouldability, also with excellent dispersion performance, may be homogenously dispersed in system；Nano-silica
SiClx is the white powder of ultrafine nanometer, can uniformly be attached to the surface of acrylic emulsion film forming matter, improve the adhesive layer
Compression strength and hardness, meanwhile, it is capable to improve the processing fluidity of blend, make the composite material of processing homogeneous, intensity
It is higher；Talcum powder is powder of the fine white without grittiness, have excellent lubricity, anti-stickiness, acid-resisting, chemical stability,
Good covering power and flexibility, serves as activeness and quietness auxiliary material in the system, increases the tension stress intensity of adhesive layer, cuts
Shearing stress, Reducing distortion expansion and contraction and thermal coefficient of expansion, may be homogenously dispersed between acrylic emulsion film forming matter and other components
In gap；Any one in above-mentioned three kinds of reinforcers is added in gluing coating systems, has preferable dispersiveness and fillibility,
Help to improve the compression strength and hardness of adhesive layer.
The present invention is further arranged to：The preparation process of the acrylate-SEBS copolymers is as follows：
(1) dispensing：Weigh 20~25 parts of methyl acrylate, 5~10 parts of Isooctyl acrylate monomer, SEBS thermoplastic elastomer (TPE)s 10~12
Part, 10~20 parts of reinforcer inclusion enclave, 5~10 parts of acrylic emulsion film forming matter, N, 1~3 part of N methylene-bisacrylamides,
3~5 parts of 0.5~1 part of cumyl peroxide and acrylic acid dispersant；
(2) SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 180~190 DEG C, stir 2~2.5h；
(3) it is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamides
Acid amides and cumyl peroxide, stir 4~5h；
(4) 160~170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1~2h；
(5) the mixture barrelling after step (4) is stirred stores.
By using above-mentioned technical proposal, carried out in advance at a temperature of 180~190 DEG C first by SEBS thermoplastic elastomer (TPE)s
Heat, melting, are then being passed through N2In the environment of, add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylenes
Base bisacrylamide and cumyl peroxide, help to prepare the higher acrylate-SEBS copolymers of the degree of cross linking；Then drop
Temperature adds acrylic emulsion film forming matter, reinforcer inclusion enclave, stirs evenly to 160~170 DEG C, is made and sandstone layer surface
Acrylate-SEBS the copolymers of stickiness higher.
The present invention is further arranged to：Step (5) medium stone block is to below 5cm, and to broken using crusher in crushing
Mixed ratio is 40~45% silty clay in crushed stone afterwards.
By using above-mentioned technical proposal, crushed stone is broken into the less rubble that particle diameter is below 5cm, is contributed to broken
Stone is filled in the gap of reinforcement cage skeleton, improves the support performance of the Reinforcement of Soft Soil Subgrade structure；It is and broken what is crushed
The silty clay of doping 40~45%, silty clay have good cementation, in the banking process of crushed stone, have in stone
Help crushed stone being bonded together, so that the structural integrity connected between strengthening rubble.
The present invention is further arranged to：Pour pressure sensitive adhesive layer and be less than 30min with being inserted into the time interval of pile pile.
By using above-mentioned technical proposal, the time interval poured pressure sensitive adhesive layer be inserted into pile pile is shortened, so that
Ensure, when pressure sensitive adhesive layer is not yet crosslinked, cures, to carry out the insertion of pile pile, help to improve the stability of construction.
In conclusion the invention has the advantages that：
1st, it is soft soil roadbed after reinforcing the invention discloses a kind of soft soil roadbed reinforcing construction process of deep ＆ thick silt matter, tool
There are excellent structural strength and hardness, improve the stability of embankment；
2nd, mutual effect of contraction is produced between reinforcement cage skeleton and pile pile, and is glued reinforcement cage skeleton using pressure sensitive adhesive layer
Knot is in sand stone layer, while secure bond pile pile, to reduce the inconsistent phenomenon of the bottom height sinking degree of pile pile；
3rd, since pressure sensitive adhesive layer hardening time is very long, after pressure is 15~20 days heavily loaded, pressure sensitive is gluing in the process
Secondary cross-linking can occur for layer, further improve the cementitiousness of pressure sensitive adhesive layer；
4th, pressure sensitive adhesive layer is that graft reaction occurs using esters of acrylic acid and SEBS thermoplastic elastomer (TPE)s, while adds enhancing
Filler inclusion enclave, acrylic emulsion film forming matter, strengthen the compatibility of pressure sensitive adhesive layer and inorganic building material.
Embodiment
The present invention is described in further detail with reference to embodiments.
Embodiment one：
A kind of preparation process of acrylate-SEBS copolymers is as follows：
(1) dispensing：Weigh 20 parts of methyl acrylate, 5 parts of Isooctyl acrylate monomer, 10 parts of SEBS thermoplastic elastomer (TPE)s, reinforcer
10 parts of inclusion enclave, 5 parts of acrylic emulsion film forming matter, N, 1 part of N methylene-bisacrylamides, 0.5 part of cumyl peroxide and third
3 parts of olefin(e) acid dispersant；
(2) reinforcer inclusion enclave is prepared：Nano-calcium carbonate is wrapped up using polyborosiloxane molten liquid, nano-calcium carbonate
Weight ratio with polyborosiloxane is 2：1, cryogenic freezing 24h is carried out after parcel at -40 DEG C, is carried out after freezing at 300 DEG C
High temperature sintering 30min, body to be sintered are crushed after being cooled to room temperature；
(3) acrylic emulsion film forming matter is prepared：(1) pre-emulsification：100 parts of water, 3 parts of emulsifying agents, 5 parts of propylene are added into reaction bulb
Acid amides, adds 5 parts of styrene, 10 parts of butyl acrylates, 10 parts of acrylic acid under agitation, prepares the white pre- breast of no layering
Change liquid；(2) it polymerize：100 parts of water, 1 part of initiator, 10 parts of pre-emulsions and 5 parts of ammonium persulfate aqueous solutions are added into reaction bulb,
After being warming up to 65 DEG C, 1h is kept the temperature, ammonium hydroxide is neutralized between pH=7.5~8.
(4) SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 190 DEG C, stir 2h；
(5) it is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamides
Acid amides and cumyl peroxide, stir 4h；
(6) 170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1h；
(7) the mixture barrelling after step (6) is stirred stores.
Embodiment two：
A kind of preparation process of acrylate-SEBS copolymers is as follows：
(1) dispensing：Weigh 22 parts of methyl acrylate, 7 parts of Isooctyl acrylate monomer, 10 parts of SEBS thermoplastic elastomer (TPE)s, reinforcer
14 parts of inclusion enclave, 5 parts of acrylic emulsion film forming matter, N, 1 part of N methylene-bisacrylamides, 0.7 part of cumyl peroxide and third
3 parts of olefin(e) acid dispersant；
(2) reinforcer inclusion enclave is prepared：Nano-calcium carbonate is wrapped up using polyborosiloxane molten liquid, nano-calcium carbonate
Weight ratio with polyborosiloxane is 2：1, cryogenic freezing 24h is carried out after parcel at -40 DEG C, is carried out after freezing at 300 DEG C
High temperature sintering 30min, body to be sintered are crushed after being cooled to room temperature；
(3) acrylic emulsion film forming matter is prepared：(1) pre-emulsification：100 parts of water, 3 parts of emulsifying agents, 5 parts of propylene are added into reaction bulb
Acid amides, adds 5 parts of styrene, 10 parts of butyl acrylates, 10 parts of acrylic acid under agitation, prepares the white pre- breast of no layering
Change liquid；(2) it polymerize：100 parts of water, 1 part of initiator, 10 parts of pre-emulsions and 5 parts of ammonium persulfate aqueous solutions are added into reaction bulb,
After being warming up to 65 DEG C, 1h is kept the temperature, ammonium hydroxide is neutralized between pH=7.5~8.
(4) SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 190 DEG C, stir 2h；
(5) it is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamides
Acid amides and cumyl peroxide, stir 4h；
(6) 170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1h；
(7) the mixture barrelling after step (6) is stirred stores.
Embodiment three：
A kind of preparation process of acrylate-SEBS copolymers is as follows：
(1) dispensing：Weigh 23 parts of methyl acrylate, 8 parts of Isooctyl acrylate monomer, 12 parts of SEBS thermoplastic elastomer (TPE)s, reinforcer
18 parts of inclusion enclave, 8 parts of acrylic emulsion film forming matter, N, 2 parts of N methylene-bisacrylamides, 0.8 part of cumyl peroxide and third
3 parts of olefin(e) acid dispersant；
(2) reinforcer inclusion enclave is prepared：Nano-calcium carbonate is wrapped up using polyborosiloxane molten liquid, nano-calcium carbonate
Weight ratio with polyborosiloxane is 2：1, cryogenic freezing 24h is carried out after parcel at -40 DEG C, is carried out after freezing at 300 DEG C
High temperature sintering 30min, body to be sintered are crushed after being cooled to room temperature；
(3) acrylic emulsion film forming matter is prepared：(1) pre-emulsification：100 parts of water, 3 parts of emulsifying agents, 5 parts of propylene are added into reaction bulb
Acid amides, adds 5 parts of styrene, 10 parts of butyl acrylates, 10 parts of acrylic acid under agitation, prepares the white pre- breast of no layering
Change liquid；(2) it polymerize：100 parts of water, 1 part of initiator, 10 parts of pre-emulsions and 5 parts of ammonium persulfate aqueous solutions are added into reaction bulb,
After being warming up to 65 DEG C, 1h is kept the temperature, ammonium hydroxide is neutralized between pH=7.5~8.
(4) SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 190 DEG C, stir 2h；
(5) it is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamides
Acid amides and cumyl peroxide, stir 4h；
(6) 170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1h；
(7) the mixture barrelling after step (6) is stirred stores.
Example IV：
A kind of preparation process of acrylate-SEBS copolymers is as follows：
(1) dispensing：Weigh 25 parts of methyl acrylate, 10 parts of Isooctyl acrylate monomer, 12 parts of SEBS thermoplastic elastomer (TPE)s, reinforcer
20 parts of inclusion enclave, 10 parts of acrylic emulsion film forming matter, N, 3 parts of N methylene-bisacrylamides, 1 part of cumyl peroxide and third
5 parts of olefin(e) acid dispersant；
(2) reinforcer inclusion enclave is prepared：Nano-calcium carbonate is wrapped up using polyborosiloxane molten liquid, nano-calcium carbonate
Weight ratio with polyborosiloxane is 2：1, cryogenic freezing 24h is carried out after parcel at -40 DEG C, is carried out after freezing at 300 DEG C
High temperature sintering 30min, body to be sintered are crushed after being cooled to room temperature；
(3) acrylic emulsion film forming matter is prepared：(1) pre-emulsification：100 parts of water, 3 parts of emulsifying agents, 5 parts of propylene are added into reaction bulb
Acid amides, adds 5 parts of styrene, 10 parts of butyl acrylates, 10 parts of acrylic acid under agitation, prepares the white pre- breast of no layering
Change liquid；(2) it polymerize：100 parts of water, 1 part of initiator, 10 parts of pre-emulsions and 5 parts of ammonium persulfate aqueous solutions are added into reaction bulb,
After being warming up to 65 DEG C, 1h is kept the temperature, ammonium hydroxide is neutralized between pH=7.5~8.
(4) SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 190 DEG C, stir 2h；
(5) it is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamides
Acid amides and cumyl peroxide, stir 4h；
(6) 170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1h；
(7) the mixture barrelling after step (6) is stirred stores.
Embodiment five：
A kind of soft soil roadbed construction technology of deep ＆ thick silt matter, includes the following steps：
(1) boundary of works area delimited, roadbed groove is excavated on soft base, is laid with sand stone layer；
(2) to pouring pressure sensitive adhesive layer in sand stone layer, pressure sensitive adhesive layer select in embodiment one acrylate for preparing-
SEBS copolymers pour to be formed, water velocity 5m2/min；
(3) and then by reinforcement cage skeleton it is laid on pressure sensitive adhesive layer；
(4) the equidistant insertion pile pile into reinforcement cage skeleton, one end of pile pile through pressure sensitive adhesive layer and inject in sand stone layer,
The other end vertically upwardly extends；
(5) crushed stone layer, volcano rock stratum, concrete layer are laid with successively on reinforcement cage skeleton, wherein, crushed stone layer choosing rubble
The silty clay that mixed ratio is 40% in block is mixed to form, and the average grain diameter of crushed stone is less than 5cm；
(6) with 5t/m on concrete layer2Heavy duty pressure 15 days carry out it is solid.
Embodiment six：Difference with embodiment five is selecting in embodiment two propylene prepared in pressure sensitive adhesive layer
Acid esters-SEBS copolymers pour to be formed.
Embodiment seven：Difference with embodiment five is selecting in embodiment three propylene prepared in pressure sensitive adhesive layer
Acid esters-SEBS copolymers pour to be formed.
Embodiment eight：Difference with embodiment five is selecting in example IV the propylene prepared in pressure sensitive adhesive layer
Acid esters-SEBS copolymers pour to be formed.
Comparative example：
(1) boundary of works area delimited, roadbed groove is excavated on soft base；
(2) immersed tube is set up into roadbed groove, is oppositely arranged between immersed tube, and is tightly injected in roadbed groove；
(3) into roadbed groove, paving spills substantial amounts of sandstone and paving spills bitumen layer.
Detection means：
Tensile splitting strength：Experiment is enterprising in Dalian University of Technology's laboratory 3000KN microcomputer controlled electro-hydraulic servo pressure testing machines
OK, comprise the concrete steps that before the test, position to be cleaved is drawn in the middle part of test specimen；Then test specimen is placed on testing machine lower platen
Center, circular arc type backing plate and wooden three-ply board bed course, headblock slice width 0.5m, thickness are padded between upper lower platen and test specimen
0.01m, length are more than 0.5m；Testing machine is started, first top board and test specimen to be approached, adjustment ball seat makes contact equal for control manually
Weighing apparatus；Start testing machine to automatically control, loading speed 0.05MPa/s, to component damage, food preservation test result.
The result of the test of test specimen tensile splitting strength is as shown in the table：
By upper table, the attainable average split tensile strength of the test specimen of five~embodiment of embodiment eight institute in more than 5.4MPa,
It is far longer than the split tensile strength of the prior art, the road mated formation on soft base according to the construction technology of the application has excellent resist
Cleavage strength, is preferably reinforced to soft soil roadbed.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
Claims (9)
1. the soft soil roadbed reinforcing construction process of a kind of deep ＆ thick silt matter, it is characterised in that include the following steps：
（1）Boundary of works area delimited, roadbed groove is excavated on soft base, is laid with sand stone layer；
（2）Pressure sensitive adhesive layer is poured on to sand stone layer, water velocity is 5 ~ 10m2/min；
（3）Then reinforcement cage skeleton is laid on pressure sensitive adhesive layer；
（4）The equidistant insertion pile pile into reinforcement cage skeleton, one end of pile pile through pressure sensitive adhesive layer and inject in sand stone layer,
The other end vertically upwardly extends；
（5）It is laid with crushed stone layer, volcano rock stratum, concrete layer successively on reinforcement cage skeleton；
（6）With 5t/m on concrete layer2Heavy duty pressure 15 ~ 20 days carry out it is solid.
A kind of 2. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 1, it is characterised in that：Step
（3）Middle pressure sensitive adhesive layer pours to be formed using acrylate-SEBS copolymers.
3. the soft soil roadbed reinforcing construction process of a kind of deep ＆ thick silt matter according to claim 2, it is characterised in that described
Acrylate-SEBS copolymers include the component of following parts by weight：20 ~ 25 parts of methyl acrylate, Isooctyl acrylate monomer 5 ~ 10
Part, 10 ~ 12 parts of SEBS thermoplastic elastomer (TPE)s, 10 ~ 20 parts of reinforcer inclusion enclave, acrylic emulsion film forming matter 5 ~ 10
Part, N, 3 ~ 5 parts of 1 ~ 3 part of N methylene-bisacrylamides, 0.5 ~ 1 part of cumyl peroxide and acrylic acid dispersant.
A kind of 4. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 3, it is characterised in that：It is described
The range of viscosities of acrylic emulsion film forming matter is in 300 ~ 350mpa s.
A kind of 5. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 3, it is characterised in that：It is described
Reinforcer inclusion enclave is that reinforcer is wrapped up using polyborosiloxane molten liquid, reinforcer and polyborosiloxane
Weight ratio is 2：1, cryogenic freezing 24h is carried out after parcel at -40 DEG C, carried out after freezing at 300 ~ 320 DEG C high temperature sintering 20 ~
40min, body to be sintered are crushed after being cooled to room temperature.
A kind of 6. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 5, it is characterised in that：Enhancing
Filler includes at least one of nano-calcium carbonate, nano silicon dioxide, talcum powder.
7. the soft soil roadbed reinforcing construction process of a kind of deep ＆ thick silt matter according to claim 3, it is characterised in that described
The preparation process of acrylate-SEBS copolymers is as follows：
（1）Dispensing：Weigh 20 ~ 25 parts of methyl acrylate, 5 ~ 10 parts of Isooctyl acrylate monomer, SEBS thermoplastic elastomer (TPE)s 10 ~
12 parts, 10 ~ 20 parts of reinforcer inclusion enclave, 5 ~ 10 parts of acrylic emulsion film forming matter, N, N methylene-bisacrylamides 1 ~
3 ~ 5 parts of 3 parts, 0.5 ~ 1 part of cumyl peroxide and acrylic acid dispersant；
（2）SEBS thermoplastic elastomer (TPE)s are added into retort, are warming up to 180 ~ 190 DEG C, stir 2 ~ 2.5h；
（3）It is continually fed into N2, and add methyl acrylate, Isooctyl acrylate monomer, acrylic acid dispersant, N, N methylene bisacrylamide acyls
Amine and cumyl peroxide, stir 4 ~ 5h；
（4）160 ~ 170 DEG C are cooled to, adds acrylic emulsion film forming matter, reinforcer inclusion enclave is stirred 1 ~ 2h；
（5）By step（4）Mixture barrelling storage after stirring.
A kind of 8. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 1, it is characterised in that：Step
（5）Medium stone block is to use crusher in crushing to below 5cm, and the powder that mixed ratio is 40 ~ 45% into the crushed stone after crushing
Matter clay.
A kind of 9. soft soil roadbed reinforcing construction process of deep ＆ thick silt matter according to claim 1, it is characterised in that：Pour
Pressure sensitive adhesive layer and the time interval of insertion pile pile are less than 30min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109868700A (en) * | 2019-01-23 | 2019-06-11 | 杜毅 | A kind of highway engineering construction soft groundsill reinforcing equipment and reinforcement means |
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| US20100112329A1 (en) * | 2006-10-31 | 2010-05-06 | Zhijian Yi | Porous cement road surface made from polymer modified cement and a construction method thereof |
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| CN204023345U (en) * | 2014-08-22 | 2014-12-17 | 重庆重交沥青砼再生制造有限公司 | A kind of Freeway Foundation structure |
| CN106320123A (en) * | 2016-08-16 | 2017-01-11 | 桐城市永锦建筑工程有限公司 | Construction method of soft soil roadbed |
| CN106702840A (en) * | 2017-02-10 | 2017-05-24 | 湖南大学 | Anchored pile reinforced earth retaining wall embankment for treating shoreside soft soil roadbed |
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| US20100112329A1 (en) * | 2006-10-31 | 2010-05-06 | Zhijian Yi | Porous cement road surface made from polymer modified cement and a construction method thereof |
| CN202543757U (en) * | 2012-05-11 | 2012-11-21 | 中交隧道工程局有限公司 | Filling structure for blown sand road foundation |
| CN204023345U (en) * | 2014-08-22 | 2014-12-17 | 重庆重交沥青砼再生制造有限公司 | A kind of Freeway Foundation structure |
| CN106320123A (en) * | 2016-08-16 | 2017-01-11 | 桐城市永锦建筑工程有限公司 | Construction method of soft soil roadbed |
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| CN109868700A (en) * | 2019-01-23 | 2019-06-11 | 杜毅 | A kind of highway engineering construction soft groundsill reinforcing equipment and reinforcement means |
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