CN108867236A - The construction technology of airfield runway - Google Patents
The construction technology of airfield runway Download PDFInfo
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- CN108867236A CN108867236A CN201810718599.0A CN201810718599A CN108867236A CN 108867236 A CN108867236 A CN 108867236A CN 201810718599 A CN201810718599 A CN 201810718599A CN 108867236 A CN108867236 A CN 108867236A
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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
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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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
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
- E01C9/008—Paving take-off areas for vertically starting aircraft
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Abstract
The invention discloses a kind of construction technologies of airfield runway, belong to airport construction field, removing and levelling of the land including ground flora soil, rammed soil type of foundation, making bed course, making base, making surface layer.The construction technology its can not only solve the problems, such as that airfield runway is swollen by settlement of foundation, frost heave and by permeable caused salt, and the overall performance of ground can be enhanced, improve the rigidity of substrate, so as to improve dynamic response of the road face surface layer under aircraft dynamic loading, the disease of airfield pavement is fundamentally solved the problems, such as.
Description
Technical field
The present invention relates to airport construction fields, more specifically, it is related to a kind of construction technology of airfield runway.
Background technique
Airfield pavement is artificial structure's object in one or more layers of natural soil matrix and substrate top surface road-making material making,
The effect of the natural causes such as the wheel load, high temperature and high speed gaseous blast and cold and hot, dry and wet, freeze thawing of aircraft is subject, including is run
Road, taxiway, passenger apron, maintenance level ground, cargo aircraft level ground, airplane parking area etc..Airfield pavement design requirement its soil matrix must it is closely knit, uniform,
Stablize, and meets the requirement for bearing aircraft loads and road face dead load.It is vibrated since airfield pavement will bear aircraft test run, is sliding
It the dynamic loads such as goes, landing impact, the requirement more than Ordinary Rd is proposed to it, especially it is settled and differential settlement mentions
Requirements at the higher level are gone out.
Requirement of the airport to basement process be：Ground must reach stable, closely knit and uniform after processing, additional load phase
To smaller, total settlement is little, and differential settlement is small.In order to reach these requirements, weight strong rammer, the basement process such as discharging consolidation are commonly used
Method, so that foundation surface forms one layer of hard shell, to improve its bearing capacity.The purpose of airport basement process, which is mainly reduced, to fly
The uniformity of deformation and raising foundation stiffness in machine reloading coverage.However, since airfield pavement load situation is multiple
Miscellaneous, various regions geological condition, natural conditions are different, and the accident of various regions airfield pavement still emerges one after another.Airfield pavement is caused to damage
The reason of be various, however the excessive sedimentation of road face ground and differential settlement are that cause face to be damaged one is main former
Because, and settle Producing reason and be mainly：The consolidation settlement and filling material itself that original soil base generates under additional load effect
Consolidation settlement and creep settlement, this affects the normal use on airport, therefore studies novel earth working material and just seem and compel
The eyebrows and eyelashes.Most of northern China area belongs to cool temperature zone, and soil is frost zone, and sharp freezing generates very big stress to draw
Play deformation, temperature gos up gradually thaw sedimentation and deformation.Positioned at the basis of the frost heave soil layer freezed, it is mostly due to foundation soil
Thaw collapse amount unevenly leads to face cracking destruction.
Dunhuang airport is built in nineteen eighty-two, and runway is all right using initial stage, however finds that crack starts on the face of road in 1984,
It patches up, more repairing, damage is more serious, has developed into more than 40000 square metres of bulging to spring in 1991.Further investigation reveals that
For Slope protection mainly at rainy season, precipitation is stitched by road facial cleft and seam crossing, inlet channel face base and soil matrix, and works as ground layer
And soil matrix saltcake crystal rich in, the presence of moisture make thenardite and water molecules become saltcake crystal, lead to salt
Swollen phenomenon makes the face of attaining the Way by swollen bad.Can by being arranged the measures such as waterproof insulating course in base lower part, partition moisture, salinity to
The migratory concentration of road face structure sheaf or roadbed shallow-layer avoids the generation that salt is swollen.On the other hand, surface layer asphalt is long-term
In use process, decline performance of asphalt mixture under the long-term collective effect of the dynamic and static load of aircraft and environmental factor, thus
Lead to occur a certain number of irregular cracks and longitudinally, laterally crack on face.Under aircraft Impact Load, road face
The dynamic stability of three-decker depends on surface layer and its substructure, if in surface layer lower part or bottom surface rationally using suitable bed course
Cracking resistance, the barrier performance of surface layer had both can be improved in material, can also play a role to the raising of base's bearing capacity, can not only
It is opposite to save cost and do not increase difficulty of construction, and maintenance cycle will effectively extend, and damaged degree will also mitigate.
In conclusion runway leads to the problem of disease mainly by above-mentioned settlement of foundation, frost heave or caused salt of intaking
It is swollen and destroyed caused by the destruction generated and uneven settlement of foundation etc..
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of construction technology of airfield runway,
Airfield runway is not only solved by settlement of foundation, frost heave and by the permeable caused swollen problem of salt, and enhances the globality of ground
Can, the rigidity of substrate is improved, so as to improve dynamic response of the road face surface layer under aircraft dynamic loading, thus can be from basic
The upper disease for solving the problems, such as airfield pavement.
Above-mentioned technical purpose of the invention technical scheme is that：
The construction technology of airfield runway, which is characterized in that include the following steps：
(1) removing and levelling of the land of ground flora soil；
(2) rammed soil type of foundation：Cushion for DC is with a thickness of 1.3~1.6m；
(3) making bed course：When light-weight foamed composite soil mix fluidity is in 13.0-15.0cm, pouring molding forms bed course,
The light-weight foamed composite soil mix includes 200-300 parts of 100-150 parts of cement, the sand of following parts by weight meter, self-control hair
60-120 parts and water 60-100 parts of infusion；
(4) making base：Bituminous stabilized stone pouring molding is formed into base, the Bituminous stabilized stone includes following parts by weight
30-40 parts of SBS modified pitch, 60-80 parts of water, 1.0-3.0 parts of emulsifier, 45-55 parts of cement and gather materials 1000-1100 parts；
(5) making surface layer：Bituminous concrete pouring molding is formed into surface layer, the bituminous concrete includes following parts by weight
50-60 parts of SBS modified pitch, 35-40 parts of water, 2.0-4.0 parts of emulsifier, 5-10 parts of reactive resin, 0.1-1.0 parts of curing agent
With gather materials 250-300 parts.
Further：Step (2) rammed soil type of foundation：Tamping is first used, then smooth by rolling vibration；Click compacting energy
It for 4000KN.m, rolls and is carried out using slitting band, lap width is not less than 20cm between band, and must not leak stone roller；Using advance and retreat
Mistake is rolled away from method, and every time mistake rolls away from 20-30cm and be oriented parallel to long side.
Further：Self-control foaming agent described in step (3) making bed course includes that weight ratio is 15-18：15-18：1-1.2
Rosin, Formulas I polymer and sodium hydroxide；Wherein, the Formulas I polymer is as follows：
Further：The bed course in step (3) making bed course with a thickness of 3-5 meters.
Further：The SBS modified pitch in step (4) making base and step (5) making surface layer is using following
Method preparation：Matrix pitch is heated to 170-175 DEG C, SBS resin is added, it is small that swelling 0.5-1 is carried out at 170-175 DEG C
When, it then heats to 175 DEG C -180 DEG C and is ground using colloid mill, then add rubber softening oil；Control temperature 180 DEG C-
185 DEG C stirring 2-3 hours, reduce temperature to stabilizer is added after 170 DEG C -175 DEG C and be stirred for 1-2h；With the base of 100 parts by weight
On the basis of matter pitch, the dosage of SBS resin is 2-5 parts by weight, and the dosage of rubber softening oil is 1-6 parts by weight, the use of stabilizer
Amount is 0.005-0.02 parts by weight.
Further：The SBS resin includes the high molecular polymer star-shaped sbs resin that average molecular weight is 250,000.
Further：The emulsifier in step (4) making base and step (5) making surface layer includes that weight ratio is
0.5-2：0.2-0.8：The pentamethyl alkyl trimethylene di-quaternary ammonium salt emulsifier of 0.5-1.5, polyethylene glycols emulsifier and
The dilute alkanes emulsifier of alkyl phenol polyoxy second.
Further：Gathering materials including weight ratio in step (4) making base is 4-5：3-4：2-3：The partial size of 1-2 is
The sand that the stone of 15-25mm, the stone of 5-15mm, the stone that partial size is 0-6mm and partial size are 0.5-0.25mm；Step (5) making surface layer
In gather materials including weight ratio be 3-4：3-4：1-2：Stone that stone that the partial size of 1-2 is 10-15mm, partial size are 5-10mm, partial size
The miberal powder that stone and partial size for 0-5mm are 0-0.6mm.
Further：The reactive resin in step (5) making surface layer is selected from phenolic resin, epoxy resin, polyamides
One or more of polyimide resin.
Further：The curing agent in step (5) making surface layer is acid anhydride type curing agent.
In conclusion the invention has the advantages that：
The first, the ground flora soil removed in boundary of works area carries out levelling of the land, by smooth strong rammer, rolls processing and increases soil
The occurrence of compactness of base, reduction differential settlement, while making the laying of subsequent bed course filler more smooth, reduce paving
If the gap between layer, increases compactness, further prevent settlement of foundation, enhance the overall performance of ground, improve the rigid of substrate
Degree.
The second, the bed course being formulated using light-weight foamed composite soil as bed course and by ordinary gravel cement concrete
Compare, performance has superiority outstanding, can reduce sedimentation and deformation, reduce rudimentary differential settlement, preferably for surface layer and
Base provides good working environment.
Third, the preparation by modified pitch, so that the modified pitch coagulation surface layer prepared, there is stronger elasticity to restore
Power and biggish caking property, can reduce the generation in crack, solve the problems, such as frost heave and swollen by permeable caused salt.
Detailed description of the invention
Fig. 1 is the synthetic route chart of Formulas I polymer；
Fig. 2 is airfield runway structure sheaf schematic diagram.
Specific embodiment
Invention is further described in detail with reference to embodiments.It should be understood that described in the embodiment of the present invention
Preparation method is only used for illustrating the present invention, rather than limiting the invention, to this hair under concept thereof of the invention
The simple modifications of bright preparation method belong to the scope of protection of present invention.
All raw materials and solvent used in embodiment are all from commercially available.Wherein cement selection P.O.32.5 normal silicate
Cement；Sand is selected as common yellow sand；SBS resin is selected as the high molecular polymer star-shaped sbs resin that average molecular weight is 250,000；Solidification
Phthalic acid anhydride curing agents are selected as in agent.
Raw material preparation example 1
100kg matrix pitch is heated to 170 DEG C, 2kgSBS resin is added, swelling 0.5 hour is carried out at 170 DEG C, is then risen
Temperature is ground to 175 DEG C using colloid mill, and 1kg rubber softening oil is then added；It controls temperature to stir 2 hours at 180 DEG C, reduce
Temperature to addition 0.005kg stabilizer after 170 DEG C is stirred for 1h.
Raw material preparation example 2
100kg matrix pitch is heated to 173 DEG C, 3kgSBS resin is added, swelling 1 hour is carried out at 173 DEG C, is then heated up
It is ground to 178 DEG C using colloid mill, then adds 3kg rubber softening oil；It controls temperature to stir 2.5 hours at 183 DEG C, reduce
Temperature to addition 0.01kg stabilizer after 173 DEG C is stirred for 1.5h.
Raw material preparation example 3
100kg matrix pitch is heated to 175 DEG C, 5kgSBS resin is added, swelling 1 hour is carried out at 175 DEG C, is then heated up
It is ground to 180 DEG C using colloid mill, then adds 6kg rubber softening oil；It controls temperature to stir 3 hours at 85 DEG C, reduces temperature
Degree to addition 0.02kg stabilizer after 175 DEG C is stirred for 2h.
Raw material preparation example 4
Pentamethyl alkyl trimethylene di-quaternary ammonium salt emulsifier 0.5kg, polyethylene glycols emulsifier 0.2kg, alkyl phenol are gathered
The dilute alkanes emulsifier 0.5kg of oxygen second is uniformly mixed.
Raw material preparation example 5
By pentamethyl alkyl trimethylene di-quaternary ammonium salt emulsifier 1kg, polyethylene glycols emulsifier 0.6kg, alkyl phenol polyoxy
The dilute alkanes emulsifier 1kg of second is uniformly mixed.
Raw material preparation example 6
By pentamethyl alkyl trimethylene di-quaternary ammonium salt emulsifier 2kg, polyethylene glycols emulsifier 0.8kg, alkyl phenol polyoxy
The dilute alkanes emulsifier 1.5kg of second is uniformly mixed.
Raw material preparation example 7
By partial size be 15mm stone 400kg, partial size be 5mm stone 300kg, the stone 200kg and partial size that partial size is 2mm are 0.5mm
Sand 100kg be uniformly mixed.
Raw material preparation example 8
By partial size be 20mm stone 450kg, partial size be 10mm stone 350kg, the stone 250kg and partial size that partial size is 4mm are 0.3mm
Sand 150kg be uniformly mixed.
Raw material preparation example 9
By partial size be 25mm stone 500kg, partial size be 15mm stone 400kg, the stone 300kg and partial size that partial size is 6mm be
The sand 200kg of 0.25mm is uniformly mixed.
Raw material preparation example 10
By partial size be 10mm stone 300kg, partial size be 5mm stone 300kg, the stone 100kg and partial size that partial size is 2mm are 0.25mm
Miberal powder 100kg be uniformly mixed.
Raw material preparation example 11
By partial size be 12mm stone 350kg, partial size be 8mm stone 350kg, the stone 150kg and partial size that partial size is 4mm are 0.4mm
Miberal powder 150kg be uniformly mixed.
Raw material preparation example 12
By partial size be 15mm stone 400kg, partial size be 10mm stone 400kg, the stone 200kg and partial size that partial size is 5mm are 0.6mm
Miberal powder 200kg be uniformly mixed.
Raw material preparation example 13
Formulas I polymer is synthesized according to synthetic route as shown in Figure 1.
Embodiment 1, the construction technology of airfield runway, includes the following steps：
(1) removing and levelling of the land of ground flora soil：
The removings such as soddy soil, tree root, plant in boundary of works area are clean, in boundary of works area region and its under the influence of it is soft
Soil layer is excavated, and the peat layer of the 30cm thickness within the scope of construction section is removed, and carries out smooth and carries out pumping equipment.
(2) rammed soil type of foundation：
In order to improve the compactness of original ground, improve native foundation base intension and rigidity, by using 4000KN.m can and weight pair
Original soil base making layer carries out dynamic consolidation construction, and ramming parameter is time full rammer of twice point of rammer.
It rams and finishes, test intensity, progress vibroroller cmpacting is smooth after meeting the requirements, and it rolls and is carried out using slitting band, item
Lap width between is 25cm, and must not leak stone roller and be rolled using mistake of retreating away from method, and every time wrong away from 20cm, and it is flat to roll direction
Row makes the native groundwork thickness 1.3m after being disposed in long side.
(3) making bed course：
First prepare required self-control foaming agent according to a certain percentage, self-control foaming agent by rosin 15kg, Formulas I polymer 15kg,
Sodium hydroxide 1kg is uniformly mixed and is made, by configured self-control foaming agent and water according to 1:15 are diluted, and make the gas of foaming agent
Bubble is smaller, so that light-weight foamed composite soil mix obtained be made to have stability.
Then light-weight foamed composite soil mix is prepared according to a certain percentage, and light-weight foamed composite soil mix is by cement
100kg, sand 200kg, self-control foaming agent 60ml and water 60kg are uniformly mixed and are made.
The segmentation of making bed course carries out, and every section is preestablished template, the flowing of prepared light-weight foamed composite soil mix
Angle value control is 13, and prepared light-weight foamed composite soil mix is then injected template, fills it automatically, to be filled close
Reality and when tomography thickness reaches 3m, stops filling, is conserved.
Light-weight foamed composite soil light specific gravity, specific strength are high, overall performance is good, rigidity is big, have good heat-proof quality, can
It solves due to settlement of foundation, the salt of frost heave or water inlet together is swollen and the destruction of generation.
(4) making base：
Bituminous stabilized stone is first prepared according to a certain percentage, and Bituminous stabilized stone is by the SBS modified pitch in raw material preparation example 1
30kg, water 60kg, 4 in raw material preparation example in emulsifier 1.0kg, cement 45kg and raw material preparation example 7 in the 1000kg that gathers materials
It is uniformly mixed and is made.
Using paved mixture, paving thickness 30cm, grinding forming thickness 25cm select 18 tons of vibration-type road roller,
It is carried out static pressure four times with the speed of 1.8km/h, then is gently shaken twice by vibratory roller, finally shaken and rolled twice again.
(5) making surface layer
Bituminous concrete is first prepared according to a certain percentage, and bituminous concrete is by the SBS modified pitch in raw material preparation example 1
50kg, water 35kg, the emulsifier 2.0-kg in raw material preparation example 4, phenolic resin 5kg, phthalic acid anhydride curing agents 0.1kg and
The 250kg that gathers materials in raw material preparation example 10 is uniformly mixed to prepare.
Then it is paved by paver to modified asphalt concrete, paving thickness 35cm, paving material control exists
130 DEG C, then cooperate road roller roller-compaction, road roller is started to be rolled to centre from roadside, is rolled and is pressed road using steel wheel
Machine is ground at the beginning of dividing, multiple stone roller and three stages of whole stone roller carry out.It just grinds static pressure 2 times, rolling speed 1.8km/h, rolling temperature is 120 DEG C；
Multiple grind is compacted 5 times, rolling speed 4km/h using steel roller, and grinding temperature again is 90 DEG C；It grinds eventually and uses steel roller static pressure
4 times, the wheelmark for rolling middle generation is eliminated, grinding temperature eventually is 80 DEG C.
Embodiment 2, the construction technology of airfield runway, includes the following steps：
(1) removing and levelling of the land of ground flora soil：
The removings such as soddy soil, tree root, plant in boundary of works area are clean, in boundary of works area region and its under the influence of it is soft
Soil layer is excavated, and the peat layer of the 30cm thickness within the scope of construction section is removed, and carries out smooth and carries out pumping equipment.
(2) rammed soil type of foundation：
In order to improve the compactness of original ground, improve native foundation base intension and rigidity, by using 4000KN.m can and weight pair
Original soil base making layer carries out dynamic consolidation construction, and ramming parameter is time full rammer of twice point of rammer.
It rams and finishes, test intensity, progress vibroroller cmpacting is smooth after meeting the requirements, and it rolls and is carried out using slitting band, item
Lap width between is 25cm, and must not leak stone roller and be rolled using mistake of retreating away from method, and every time wrong away from 25cm, and it is flat to roll direction
Row makes the native groundwork thickness 1.4m after being disposed in long side.
(3) making bed course：
First prepare required self-control foaming agent according to a certain percentage, self-control foaming agent by rosin 16kg, Formulas I polymer 16kg,
Sodium hydroxide 1.1kg is uniformly mixed and is made.Then by configured self-control foaming agent and water according to 1:15 are diluted, and make to foam
The bubble of agent is smaller, so that light-weight foamed composite soil mix obtained be made to have stability.
Then light-weight foamed composite soil mix is prepared according to a certain percentage, and light-weight foamed composite soil mix is by cement
120kg, sand 250kg, self-control foaming agent 100ml and water 800kg are uniformly mixed and are made.Configured self-control foaming agent is pressed with water
According to 1:15 are diluted, and keep the bubble of foaming agent smaller, so that light-weight foamed composite soil mix obtained be made to have stability.
The segmentation of making bed course carries out, and every section is preestablished template, the flowing of prepared light-weight foamed composite soil mix
Angle value control is 14, and prepared light-weight foamed composite soil mix is then injected template, fills it automatically, to be filled close
Reality and when tomography thickness reaches 4m, stops filling, is conserved.
Light-weight foamed composite soil light specific gravity, specific strength are high, overall performance is good, rigidity is big, have good heat-proof quality, can
It solves due to settlement of foundation, the salt of frost heave or water inlet together is swollen and the destruction of generation.
(4) making base：
Bituminous stabilized stone is first prepared according to a certain percentage, and Bituminous stabilized stone is by the SBS modified pitch in raw material preparation example 2
35kg, water 70kg, 5 in raw material preparation example in emulsifier 2.0kg, cement 50kg and raw material preparation example 8 in the 1000kg that gathers materials
It is uniformly mixed and is made.
Using paved mixture, paving thickness 30cm, grinding forming thickness 25cm select 18 tons of vibration-type road roller,
It is carried out static pressure four times with the speed of 1.8km/h, then is gently shaken twice by vibratory roller, finally shaken and rolled twice again.
(5) making surface layer
Bituminous concrete is first prepared according to a certain percentage, and bituminous concrete is by the SBS modified pitch in raw material preparation example 2
55kg, water 38kg, the emulsifier 3.0kg in raw material preparation example 5, epoxy resin 8kg, phthalic acid anhydride curing agents 0.5kg and
The 280kg that gathers materials in raw material preparation example 11 is uniformly mixed to prepare.
Then it is paved by paver to modified asphalt concrete, paving thickness 35cm, paving material control exists
145 DEG C, then cooperate road roller roller-compaction, road roller is started to be rolled to centre from roadside, is rolled and is pressed road using steel wheel
Machine is ground at the beginning of dividing, multiple stone roller and three stages of whole stone roller carry out.It just grinds static pressure 2 times, rolling speed 1.8km/h, rolling temperature is 125 DEG C；
Multiple grind is compacted 5 times, rolling speed 4km/h using steel roller, and grinding temperature again is 100 DEG C；It grinds eventually quiet with steel roller
Pressure 4 times, eliminates the wheelmark for rolling middle generation, and grinding temperature eventually is 85 DEG C.
Embodiment 3, the construction technology of airfield runway, includes the following steps：
(1) removing and levelling of the land of ground flora soil：
The removings such as soddy soil, tree root, plant in boundary of works area are clean, in boundary of works area region and its under the influence of it is soft
Soil layer is excavated, and the peat layer of the 30cm thickness within the scope of construction section is removed, and carries out smooth and carries out pumping equipment.
(2) rammed soil type of foundation：
In order to improve the compactness of original ground, improve native foundation base intension and rigidity, by using 4000KN.m can and weight pair
Original soil base making layer carries out dynamic consolidation construction, and ramming parameter is time full rammer of twice point of rammer.
It rams and finishes, test intensity, progress vibroroller cmpacting is smooth after meeting the requirements, and it rolls and is carried out using slitting band, item
Lap width between is 25cm, and must not leak stone roller and be rolled using mistake of retreating away from method, and every time wrong away from 30cm, and it is flat to roll direction
Row makes the native groundwork thickness 1.5m after being disposed in long side.
(3) making bed course：
First prepare required self-control foaming agent according to a certain percentage, self-control foaming agent by rosin 18kg, Formulas I polymer 18kg,
Sodium hydroxide 1.2kg is uniformly mixed and is made.
Then light-weight foamed composite soil mix is prepared according to a certain percentage, and light-weight foamed composite soil mix is by cement
150kg, sand 300kg, self-control foaming agent 120ml and water 100kg are uniformly mixed and are made.Configured self-control foaming agent is pressed with water
According to 1:15 are diluted, and keep the bubble of foaming agent smaller, so that light-weight foamed composite soil mix obtained be made to have stability.
The segmentation of making bed course carries out, and every section is preestablished template, the flowing of prepared light-weight foamed composite soil mix
Angle value control is 15, and prepared light-weight foamed composite soil mix is then injected template, fills it automatically, to be filled close
Reality and when tomography thickness reaches 5m, stops filling, is conserved.
Light-weight foamed composite soil light specific gravity, specific strength are high, overall performance is good, rigidity is big, have good heat-proof quality, can
It solves due to settlement of foundation, the salt of frost heave or water inlet together is swollen and the destruction of generation.
(4) making base：
Bituminous stabilized stone is first prepared according to a certain percentage, and Bituminous stabilized stone is by the SBS modified pitch in raw material preparation example 3
40kg, water 80kg, 6 in raw material preparation example in emulsifier 3.0kg, cement 45kg and raw material preparation example 9 in the 1100kg that gathers materials
It is uniformly mixed and is made.
Using paved mixture, paving thickness 30cm, grinding forming thickness 25cm select 18 tons of vibration-type road roller,
It is carried out static pressure four times with the speed of 1.8km/h, then is gently shaken twice by vibratory roller, finally shaken and rolled twice again.
(5) making surface layer
Bituminous concrete is first prepared according to a certain percentage, and bituminous concrete is by the SBS modified pitch in raw material preparation example 1
60kg, water 40kg, the emulsifier 4.0kg in raw material preparation example 6, phenolic resin 10kg, phthalic acid anhydride curing agents 1.0kg and
The 300kg that gathers materials in raw material preparation example 12 is uniformly mixed to prepare.
Then it is paved by paver to modified asphalt concrete, paving thickness 35cm, paving material control exists
160 DEG C, then cooperate road roller roller-compaction, road roller is started to be rolled to centre from roadside, is rolled and is pressed road using steel wheel
Machine is ground at the beginning of dividing, multiple stone roller and three stages of whole stone roller carry out.It just grinds static pressure 2 times, rolling speed 1.8km/h, rolling temperature is 130 DEG C；
Multiple grind is compacted 5 times, rolling speed 4km/h using steel roller, and grinding temperature again is 110 DEG C；It grinds eventually quiet with steel roller
Pressure 4 times, eliminates the wheelmark for rolling middle generation, grinds temperature eventually and is not less than 90 DEG C.
Comparative example 1, substantially the same manner as Example 1, difference place is that be laid with course mixes for ordinary gravel cement
Solidifying soil padding.
Comparative example 2, substantially the same manner as Example 2, difference place is that be laid with base is used to drip with surface material
Blueness is generic media pitch.
It chooses pilot with the bed course in comparative example 2 to the bed course in Examples 1 to 3 to be tested for the property, test result is such as
Shown in table 1.
Bed course performance data tests table in 1 Examples 1 to 3 of table and comparative example 2
| Test item | Elasticity modulus (MPa) | Poisson's ratio | Density (kg/m3) | Road face settles (mm) |
| Embodiment 1 | 75 | 0.21 | 1000 | 20 |
| Embodiment 2 | 70 | 0.20 | 1100 | 22 |
| Embodiment 3 | 80 | 0.22 | 1200 | 24 |
| Comparative example 1 | 150 | 0.25 | 2000 | 43 |
As can be seen from Table 1, the foam concrete mix in Examples 1 to 3 is compared as bed course with comparative example 1, real
It is heavy to apply the road face of ordinary gravel coagulating cement soil padding that the road face sedimentation of the bed course in example 1~3 is significantly less than in comparative example 1
Drop, this is because having the small light weight of the density of foam concrete mix in Examples 1 to 3, caused by the weight of bed course itself
The influence of road face sedimentation is smaller, is conducive to keep planarization of the road face under load effect, and enhance the overall performance of ground,
The rigidity of substrate is improved, so as to improve dynamic response of the road face surface layer under aircraft dynamic loading.
It is steady to compression rebound modulu, the water of the SBS modified asphalt concrete test block prepared by Examples 1 to 3 and comparative example 2
The conventional indexs such as qualitative, high-temperature stability are tested for the property, and wherein water stability (hits real 75 to evaluate with indirect tensile test on frozen-thaw
It is secondary), thimble test foundation《Highway engineering pitch and Asphalt Mixture Experiment regulation》(JTJ052-2000) it is tried
It tests, specific test result is as shown in table 2.
2 bituminous concrete test block data test tables of data of 2 Examples 1 to 3 of table and comparative example
The SBS modified asphalt concrete test block of comparing embodiment 1~3 and the bituminous concrete of comparative example 2, Examples 1 to 3 change
Property bituminous concrete compression rebound modulu be greater than 1000MPa, meet timely requirement to bituminous pavement in specification, and embodiment
The compression rebound modulu of 1~3 modified asphalt concrete is better than comparative example 2, and the freeze-thaw split intensity ratio of modified asphalt concrete exists
60~80%, dynamic stability is greater than 2400 times/mm, has preferable high temperature deformation resistance and dynamic stability, and its conventional pressure resistance
The bituminous concrete that degree is substantially better than comparative example 2, therefore is prepared in Examples 1 to 3 by SBS modified pitch with anti-ion permeability
The base of making and surface layer performance are more excellent.
Claims (10)
1. the construction technology of airfield runway, which is characterized in that include the following steps：
(1) removing and levelling of the land of ground flora soil；
(2) rammed soil type of foundation：Strong rammer soil groundwork thickness is 1.3~1.6m；
(3) making bed course：When light-weight foamed composite soil mix fluidity is in 13.0-15.0cm, pouring molding forms bed course,
The light-weight foamed composite soil mix includes 200-300 parts of 100-150 parts of cement, the sand of following parts by weight meter, self-control hair
60-120 parts and water 60-100 parts of infusion；
(4) making base：Bituminous stabilized stone pouring molding is formed into base, the Bituminous stabilized stone includes following parts by weight
30-40 parts of SBS modified pitch, 60-80 parts of water, 1.0-3.0 parts of emulsifier, 45-55 parts of cement and gather materials 1000-1100 parts；
(5) making surface layer：Bituminous concrete pouring molding is formed into surface layer, the bituminous concrete includes following parts by weight
50-60 parts of SBS modified pitch, 35-40 parts of water, 2.0-4.0 parts of emulsifier, 5-10 parts of reactive resin, 0.1-1.0 parts of curing agent
With gather materials 250-300 parts.
2. the construction technology of airfield runway according to claim 1, it is characterised in that：Step (2) rammed soil type of foundation：First use
Tamping, then it is smooth by rolling vibration；Clicking compacting can be 4000KN.m, roll and carried out using slitting band, between band
Lap width is not less than 20cm, and must not leak stone roller；It is rolled using mistake is retreated away from method, it is parallel to roll direction away from 20-30cm for every time mistake
In long side.
3. the construction technology of airfield runway according to claim 1, it is characterised in that：Described in step (3) making bed course
Self-control foaming agent includes that weight ratio is 15-18：15-18：Rosin, Formulas I polymer and the sodium hydroxide of 1-1.2；Wherein, the formula
I polymer is as follows：
4. the construction technology of airfield runway according to claim 1, it is characterised in that：Institute in step (3) making bed course
State bed course with a thickness of 3-5 meters.
5. the construction technology of airfield runway according to claim 1, it is characterised in that：Step (4) making base and step
(5) the SBS modified pitch in making surface layer is prepared using following methods：Matrix pitch is heated to 170-175 DEG C, is added
SBS resin carries out swelling 0.5-1 hours at 170-175 DEG C, then heats to 175 DEG C -180 DEG C and is ground using colloid mill, with
After add rubber softening oil；Control temperature 180 DEG C -185 DEG C of stirrings 2-3 hour, reduction temperature adds to after 170 DEG C -175 DEG C
Enter stabilizer and is stirred for 1-2h；On the basis of the matrix pitch of 100 parts by weight, the dosage of SBS resin is 2-5 parts by weight, rubber
The dosage of softening oil is 1-6 parts by weight, and the dosage of stabilizer is 0.005-0.02 parts by weight.
6. the construction technology of airfield runway according to claim 5, it is characterised in that：The SBS resin includes average mark
The high molecular polymer star-shaped sbs resin that son amount is 250,000.
7. the construction technology of airfield runway according to claim 1, it is characterised in that：Step (4) making base and step
(5) it is 0.5-2 that the emulsifier in making surface layer, which includes weight ratio,：0.2-0.8：Three methylene of pentamethyl alkyl of 0.5-1.5
Base di-quaternary ammonium salt emulsifier, polyethylene glycols emulsifier and the dilute alkanes emulsifier of alkyl phenol polyoxy second.
8. the construction technology of airfield runway according to claim 1, it is characterised in that：Collection in step (4) making base
Material includes that weight ratio is 4-5：3-4：2-3：Stone that stone, the partial size of stone, 5-15mm that the partial size of 1-2 is 15-25mm are 0-6mm and
Partial size is the sand of 0.5-0.25mm；Gathering materials including weight ratio in step (5) making surface layer is 3-4：3-4：1-2：The partial size of 1-2
The miberal powder that the stone and partial size that stone that stone, partial size for 10-15mm are 5-10mm, partial size are 0-5mm are 0-0.6mm.
9. the construction technology of airfield runway according to claim 1, it is characterised in that：Institute in step (5) making surface layer
It states reactive resin and is selected from one or more of phenolic resin, epoxy resin, polyamide.
10. the construction technology of airfield runway according to claim 1, it is characterised in that：Institute in step (5) making surface layer
Stating curing agent is acid anhydride type curing agent.
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