CN109750570A - The construction method on road surface is built on soft foundation - Google Patents
The construction method on road surface is built on soft foundation Download PDFInfo
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- CN109750570A CN109750570A CN201811616042.2A CN201811616042A CN109750570A CN 109750570 A CN109750570 A CN 109750570A CN 201811616042 A CN201811616042 A CN 201811616042A CN 109750570 A CN109750570 A CN 109750570A
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- mud
- pile body
- clump
- road surface
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- 238000010276 construction Methods 0.000 title claims abstract description 22
- 241000219430 Betula pendula Species 0.000 claims abstract description 62
- 239000004575 stone Substances 0.000 claims abstract description 42
- 239000004568 cement Substances 0.000 claims abstract description 26
- 239000004567 concrete Substances 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims abstract description 14
- 239000002344 surface layer Substances 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
- 239000003054 catalyst Substances 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 239000011150 reinforced concrete Substances 0.000 claims description 11
- 229910002027 silica gel Inorganic materials 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 11
- 235000006508 Nelumbo nucifera Nutrition 0.000 claims description 10
- 240000002853 Nelumbo nucifera Species 0.000 claims description 10
- 235000006510 Nelumbo pentapetala Nutrition 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000003365 glass fiber Substances 0.000 claims description 9
- 239000011440 grout Substances 0.000 claims description 9
- 229910021485 fumed silica Inorganic materials 0.000 claims description 8
- 238000005728 strengthening Methods 0.000 claims description 2
- 230000005484 gravity Effects 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 208000008425 Protein Deficiency Diseases 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 210000001331 Nose Anatomy 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000003014 reinforcing Effects 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010018987 Haemorrhage Diseases 0.000 description 1
- 230000000740 bleeding Effects 0.000 description 1
- 231100000319 bleeding Toxicity 0.000 description 1
- 230000003139 buffering Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003068 static Effects 0.000 description 1
Abstract
The present invention relates to pavement technique fields to provide a kind of construction method that road surface is built on soft foundation, comprising: (1) detect mud depth for the problem that when foundation strength deficiency, being then easy to appear pavement depression even cracking failure；(2) mould pipe is sunk to；(3) casting cement slurries；(4) pile sinking；(5) mould pipe is dismantled；(6) mud is reinforced；(7) concrete base layer and two sides roadbed are poured；(8) bed course and surface layer are laid with.Resistance to compression and bending resistance are provided by pile body, it is fixedly connected by clump with lithosphere, and the connection area of clump and mud is larger, cooperate again and sinks to stone to generate the stronger frictional force between lithosphere using the gravity of stone, and the inertia for keeping original place generated using stone gravity, stable constraint pile body avoid pile body from shifting, to guarantee that pile body steadily supports concrete base layer, so that pavement structure is stablized.
Description
Technical field
The present invention relates to pavement technique fields, more particularly, to a kind of construction method for building road surface on soft foundation.
Background technique
Since road surface is mainly used for transporting, so that the geological environment that road surface is crossed over is sufficiently complex, wherein muddy ground is most often
The soft foundation geological environment seen, since road surface needs to carry the load meeting of relatively large load especially logistics vehicles so that road surface passes through
Often part by relatively large load, when foundation strength deficiency, then be easy to appear pavement depression even cracking failure the case where,
And the conevying efficiency on road surface can be made to decline to a great extent to avoid soft foundation geological environment then around muddy ground, therefore there are also improve
Space.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of to build road surface on soft foundation
Construction method has the advantages that stable structure.
To achieve the above object, the present invention provides the following technical scheme that
A kind of construction method for building road surface on soft foundation, it is characterized in that: the following steps are included:
(1) mud depth is detected；
(2) mould pipe is sunk to, specific as follows:
Mould pipe is sunk to mud at Pile Foundations Design, mould length of tube is greater than mud depth and is drowned into abut with lithosphere；
(3) casting cement slurries, specific as follows:
It casting cement slurries and is stirred in towards mould pipe, mud and cement grout is made to be uniformly mixed to form clump；
(4) pile sinking, specific as follows:
Pile body is sunk to unformed clump, the pile body length is greater than mud depth；
(5) mould pipe is dismantled, specific as follows:
After clump initial set, mould pipe is dismantled；
(6) mud is reinforced, specific as follows:
Stone is sunk to mud to surround clump, forms fixing collar；
(7) concrete base layer and two sides roadbed are poured；
(8) bed course and surface layer are laid with.
By using above-mentioned technical proposal, lithosphere is abutted to provide resistance to compression and bending resistance using pile body, and utilize
Clump is fixedly connected with lithosphere, and the connection area of clump and mud is larger, with stable constraint pile body, avoids stake
Body displacement, to guarantee that pile body steadily supports concrete base layer, so that pavement structure is stablized；By sinking to stone to utilize stone
Gravity generate and lithosphere between stronger frictional force, and using stone gravity generate the inertia for keeping original place, and
The resistance for cooperating mud to provide, to constrain clump, and then further constrains pile body, preferably pile body to be avoided to shift, so that
Pavement structure is more stable；By sink to mould pipe so that concrete pier by mould pipe limit to form, avoid cement grout from infusing
Enter the case where bleeding around in mud；By sinking to pile body when clump is unformed, avoiding first sinking to pile body leads to cement slurry
When liquid and mud stir the case where operating difficulties, while pile body is sunk to after avoiding clump from forming lead to the feelings of clump breakage
Condition, so that construction is more convenient, construction effect is preferable；When road surface road surface bears to load, pass through surface layer, bed course and concrete
Base successively transmits and resists load, finally supports by load distribution to larger range and by pile body, and then be transferred to rock
Layer, to provide powerful support force using lithosphere, so that bearing capacity of the road surface on soft foundation significantly improves；Vehicle
Operation caused by vibration, may cause pile body displacement, inclination so that pile body lose support concrete base layer ability, lead to
It crosses clump and fixing collar to cooperate, to guarantee that pile body is stablized in a vertical state and limits pile body Bending Deformation, so that pile body is steady
It is fixed, so that pavement structure is stablized.
The present invention is further arranged to: pile body uses reinforced concrete pipe pile in the step (4).
By using above-mentioned technical proposal, by using reinforced concrete pipe pile, so that pile body anti-pressure ability and bending resistance
Qu Nengli is preferable, so that the structural stability of pile body is preferable, meanwhile, after sinking to tubular pole, clump part enters inside tubular pole,
So that clump plays preferable effect of contraction inside and outside tubular pole, so that tubular pole is not easy to shift, tilt, so that pile body stability
Preferably.
The present invention is further arranged to: the mould bore is 2-3 times of reinforced concrete pipe pile outer diameter.
By using above-mentioned technical proposal so that the contact area of clump and mud is larger, and make clump with
The connection area of lithosphere is larger, so that clump is steadily fixedly connected on lithosphere, is not easy to shift, so that cement
Pier limits the better effect of pile body displacement.
The present invention is further arranged to: in the step (6), after sinking to stone, being wrapped circumferentially around and is being added along pile body with fishing net
Gu Quan is outer and tightens.
By using above-mentioned technical proposal, stone free movement is limited by fishing net, so that constituting all stones of fixing collar
Block is integrally formed, and the flexibility of fishing net and toughness are preferable, not cracky, cooperates with all stones of fixing collar about
Beam clump, and then constrain pile body；Simultaneously because stone surround clump so that fishing net tightening after, stone due to different,
There may be situations that is less with clump local contact area and then causing nip pressure larger therefore can by clump
The effectively pressure of buffering stone, avoiding stone from directly contacting with pile body leads to the case where damaging pile body.
The present invention is further arranged to: in the step (6), stone volume is not less than 0.5 cubic metre.
It by using above-mentioned technical proposal, avoids stone too small, causes usage quantity excessive, and fishing net is made to be easy to receive
Tight stone, so that fixing collar stability is higher, and while making construction, is more convenient, and stone is more easily controlled when launching, and every
Block stone weight is larger, is not easy to shift, and the effect for constraining concrete stake is preferable.
The present invention is further arranged to: in the step (6), after fishing net wrapped strengthening circle, into mud with 3-5mpa
Pressure inject supporting material.
By using above-mentioned technical proposal, by the way that supporting material is added, so that mud intensity rises, mobility decline, more
Good restrained reinforcement circle and clump improves the stability of pile body to further increase the effect of constraint pile body；By with 3-
The pressure high pressure of 5Mpa injects supporting material, so that supporting material is readily dispersed in mud, so that reinforcing effect is preferable, range
It is relatively wide.
The present invention is further arranged to: the supporting material includes the component of following mass fraction:
100 parts of liquid silica gel；
3-5 parts of organotin catalysts；
30-35 parts of glass fibre；
10-15 parts of fumed silica；
3-5 parts of lotus leaf powder.
By using above-mentioned technical proposal, reticular structure is formed after solidifying by liquid silica gel, cooperates glass fibre, gas phase
Silica, the preferable mobility for improving mud intensity and reducing mud, generates hydrogen when static by fumed silica
Key is network-like to be formed, so that supporting material intensity is high, poor fluidity under low sheraing, and under high shear, that is, it squeezes out and is injected into
When in mud, hydrogen bond fracture increases the mobility of supporting material, in order to construct；By using organotin catalysts so that
The moisture for needing to adsorb when liquid silica gel solidifies in mud is obtained, and then the water content in mud can be reduced, so that mud mobility
Further decline；By the way that lotus leaf powder is added, so that the hydrophobicity of supporting material increases, so that supporting material is not easy by mud
Middle moisture attack, and reduce supporting material water suction the case where so that supporting material be easy in mud disperse and stability compared with
It is good；Simultaneously by adjusting the additional amount of lotus leaf powder to control the suction hydrophobicity performance of supporting material, and then controls moisture and enter reinforcement
Rate in material to be absorbed by organotin catalysts, and then play the effect of control liquid silica gel solidification rate.
The present invention is further arranged to: in the step (6), in the horizontal direction every 10 meters of injection 1kg supporting materials.
By using above-mentioned technical proposal, so that supporting material is distributed more widely and distribution is not easy to intersect, cost is controlled
While, the effect of limitation mud flowing is preferable.
The present invention is further arranged to: in the step (6), it is muck surface or less 1.5m that supporting material, which injects depth,.
By using above-mentioned technical proposal, so that the main reinforcement point of supporting material is at the top of clump and pile body, and
Since clump connect for bottom with lithosphere, supporting material is reinforced at 1.5m below muck surface will make reinforcing
The arm of force of the mud to the restriction effect moment of clump from clump fixed point is longer, and effect is preferable.
In conclusion the invention has the following advantages:
1. providing resistance to compression and bending resistance by pile body, it is fixedly connected by clump with lithosphere, and clump
It is larger with the connection area of mud, then cooperate and sink to stone to generate the stronger friction between lithosphere using the gravity of stone
Power, and the inertia for keeping original place generated using stone gravity, stable constraint pile body avoid pile body from shifting, to guarantee stake
Body steadily supports concrete base layer, so that pavement structure is stablized；
2. controlling the suction hydrophobicity performance of supporting material by the additional amount for adjusting lotus leaf powder, and then controls moisture and enter benefit
Rate in strong material to be absorbed by organotin catalysts, and then play the effect of control liquid silica gel solidification rate；
3. it is steady to improve pile body without full cure soft foundation by the combination of the means such as clump, stone, mud reinforcement
It is qualitative, by fractional constraint, so that integral construction cost declines to a great extent, the pollution that large area casting cement generates is reduced, protection
Environment.
Specific embodiment
With reference to embodiments, invention is further described in detail.
Embodiment 1
A kind of construction method for building road surface in soft foundation, comprising the following steps:
(1) mud depth is detected, specific as follows:
By geologic radar detection mud depth, and according to design drawing, marks pile foundation position and mark the mud at this
Depth.
(2) mould pipe is sunk to, specific as follows:
The mould pipe of different length is selected according to mud depth, mould length of tube is that mould pipe sinks to the 110% of place's mud depth；
Mould pipe is sunk into corresponding position according to mark, mould pipe sinks down into mould tube bottom end and abuts with lithosphere, and mould pipe is along perpendicular
Histogram adjusts the vertical degree of mould pipe by level meter to sinking when mould pipe sinks；
Mould bore is 3000mm.
(3) casting cement slurries, specific as follows:
Casting cement slurries in towards mould pipe, every 1 cubic metre of casting cement slurries 1kg, according to mud at current mould pipe
Depth calculates cement grout injection rate；
It is protruded into mould pipe by twist bit and is stirred with the mixture to cement grout and mud to form clump.
(4) pile sinking, specific as follows:
Before clump is unformed, pile body is sunk in the clump in casing, pile body is drowned into pile body bottom and rock
Layer abuts；
Pile body uses reinforced concrete pipe pile, and pile body outer diameter is 1000mm；
By selection pile body length so as to be higher by 30cm ± 5cm than mud top surface at the top of pile body；
Cement-sludge mixture in aspiration cannula and in reinforced concrete pipe pile, so that the top of clump declines
To the position lower than mud top surface 1m at casing；
The pier nose of top horizontal is formed according to template and casting at the top of pile body.
(5) mould pipe is dismantled, specific as follows:
After clump initial set, mould pipe is dismantled；
Mould pipe is spliced by the semicircular arc semicanal in two sections is opposite, is tightened by metallic cable to limit mould pipe point
From；
When disassembly, metallic cable is unlocked, two semicanals are completed to dismantle along mould pipe radial separation.
(6) mud is reinforced, specific as follows:
The stone that volume is 0.8 ± 0.1 cubic metre, the preferred granite of stone are sunk into mud；
Stone circumferentially surrounds clump along clump, and stone surrounds two circles altogether, to form fixing collar；
Then fixing collar is wrapped circumferentially around along clump with fishing net and tightened, so that stone is tightly attached on clump side wall；
Then supporting material is injected with the pressure of 3mpa in Grouting Pipe insertion mud, in the horizontal direction using 10m as interval
It is repeatedly injected, injection depth is at muck surface or less 1.5m, and each injection rate is 1kg；
Fixing collar height is the 50% of mud depth.
(7) it is poured concrete base layer, specific as follows:
After the pier nose initial set on pile body, it is laid with template, is poured armored concrete base and the road surface two sides on road surface
Way of concrete foundations.
(8) it is laid with bed course and surface layer, specific as follows:
After the initial set of armored concrete base, sandstone is laid with as bed course, pervious asphalt material is laid with and forms surface layer.
Supporting material the preparation method is as follows:
A. liquid silica gel 100kg and lotus leaf powder 3kg, revolving speed 60r/min, stirring are added in closed stirred tank
5min；
B. fumed silica 10kg, revolving speed 80r/min is added, stirs 5min；
C. glass fibre 30kg, revolving speed 40r/min is added, stirs 3min, revolving speed 100r/min, stirs 10min；
D. organotin catalysts 5kg, revolving speed 60r/min is added, stirs 10min, revolving speed 30r/min continues stirring until use
It finishes.
In the present embodiment, organotin catalysts are dibutyl tin dilaurate.
Embodiment 2
A kind of construction method for building road surface in soft foundation, comprising the following steps:
(1) mud depth is detected, specific as follows:
By geologic radar detection mud depth, and according to design drawing, marks pile foundation position and mark the mud at this
Depth.
(2) mould pipe is sunk to, specific as follows:
The mould pipe of different length is selected according to mud depth, mould length of tube is that mould pipe sinks to the 115% of place's mud depth；
Mould pipe is sunk into corresponding position according to mark, mould pipe sinks down into mould tube bottom end and abuts with lithosphere, and mould pipe is along perpendicular
Histogram adjusts the vertical degree of mould pipe by level meter to sinking when mould pipe sinks；
Mould bore is 2500mm.
(3) casting cement slurries, specific as follows:
Casting cement slurries in towards mould pipe, every 1 cubic metre of casting cement slurries 1kg, according to mud at current mould pipe
Depth calculates cement grout injection rate；
It is protruded into mould pipe by twist bit and is stirred with the mixture to cement grout and mud to form clump.
(4) pile sinking, specific as follows:
Before clump is unformed, pile body is sunk in the clump in casing, pile body is drowned into pile body bottom and rock
Layer abuts；
Pile body uses reinforced concrete pipe pile, and pile body outer diameter is 1000mm；
By selection pile body length so as to be higher by 30cm ± 5cm than mud top surface at the top of pile body；
Cement-sludge mixture in aspiration cannula and in reinforced concrete pipe pile, so that the top of clump declines
To the position lower than mud top surface 1m at casing；
The pier nose of top horizontal is formed according to template and casting at the top of pile body.
(5) mould pipe is dismantled, specific as follows:
After clump initial set, mould pipe is dismantled；
Mould pipe is spliced by the semicircular arc semicanal in two sections is opposite, is tightened by metallic cable to limit mould pipe point
From；
When disassembly, metallic cable is unlocked, two semicanals are completed to dismantle along mould pipe radial separation.
(6) mud is reinforced, specific as follows:
The stone that volume is 0.6 ± 0.1 cubic metre, the preferred marble of stone are sunk into mud；
Stone circumferentially surrounds clump along clump, and stone surrounds two circles altogether, to form fixing collar；
Then fixing collar is wrapped circumferentially around along clump with fishing net and tightened, so that stone is tightly attached on clump side wall；
Then supporting material is injected with the pressure of 4mpa in Grouting Pipe insertion mud, in the horizontal direction using 10m as interval
It is repeatedly injected, injection depth is at muck surface or less 1.5m, and each injection rate is 1kg；
Fixing collar height is the 50% of mud depth.
(7) it is poured concrete base layer and two sides roadbed, specific as follows:
After the pier nose initial set on pile body, it is laid with template, is poured armored concrete base and the road surface two sides on road surface
Way of concrete foundations.
(8) it is laid with bed course and surface layer, specific as follows:
After the initial set of armored concrete base, sandstone is laid with as bed course, pervious asphalt material is laid with and forms surface layer.
Supporting material the preparation method is as follows:
A. liquid silica gel 100kg and lotus leaf powder 3kg, revolving speed 60r/min, stirring are added in closed stirred tank
5min；
B. fumed silica 10kg, revolving speed 80r/min is added, stirs 5min；
C. glass fibre 30kg, revolving speed 40r/min is added, stirs 3min, revolving speed 100r/min, stirs 10min；
D. organotin catalysts 5kg, revolving speed 60r/min is added, stirs 10min, revolving speed 30r/min continues stirring until use
It finishes.
In the present embodiment, organotin catalysts are dibutyl tin dilaurate.
Embodiment 3
A kind of construction method for building road surface in soft foundation, comprising the following steps:
(1) mud depth is detected, specific as follows:
By geologic radar detection mud depth, and according to design drawing, marks pile foundation position and mark the mud at this
Depth.
(2) mould pipe is sunk to, specific as follows:
The mould pipe of different length is selected according to mud depth, mould length of tube is that mould pipe sinks to the 112% of place's mud depth；
Mould pipe is sunk into corresponding position according to mark, mould pipe sinks down into mould tube bottom end and abuts with lithosphere, and mould pipe is along perpendicular
Histogram adjusts the vertical degree of mould pipe by level meter to sinking when mould pipe sinks；
Mould bore is 2000mm.
(3) casting cement slurries, specific as follows:
Casting cement slurries in towards mould pipe, every 1 cubic metre of casting cement slurries 1kg, according to mud at current mould pipe
Depth calculates cement grout injection rate；
It is protruded into mould pipe by twist bit and is stirred with the mixture to cement grout and mud to form clump.
(4) pile sinking, specific as follows:
Before clump is unformed, pile body is sunk in the clump in casing, pile body is drowned into pile body bottom and rock
Layer abuts；
Pile body uses reinforced concrete pipe pile, and pile body outer diameter is 1000mm；
By selection pile body length so as to be higher by 30cm ± 5cm than mud top surface at the top of pile body；
Cement-sludge mixture in aspiration cannula and in reinforced concrete pipe pile, so that the top of clump declines
To the position lower than mud top surface 1m at casing；
The pier nose of top horizontal is formed according to template and casting at the top of pile body.
(5) mould pipe is dismantled, specific as follows:
After clump initial set, mould pipe is dismantled；
Mould pipe is spliced by the semicircular arc semicanal in two sections is opposite, is tightened by metallic cable to limit mould pipe point
From；
When disassembly, metallic cable is unlocked, two semicanals are completed to dismantle along mould pipe radial separation.
(6) mud is reinforced, specific as follows:
The stone that volume is 0.7 ± 0.1 cubic metre, the preferred andesite of stone are sunk into mud；
Stone circumferentially surrounds clump along clump, and stone surrounds two circles altogether, to form fixing collar；
Then fixing collar is wrapped circumferentially around along clump with fishing net and tightened, so that stone is tightly attached on clump side wall；
Then supporting material is injected with the pressure of 5mpa in Grouting Pipe insertion mud, in the horizontal direction using 10m as interval
It is repeatedly injected, injection depth is at muck surface or less 1.5m, and each injection rate is 1kg；
Fixing collar height is the 50% of mud depth.
(7) it is poured concrete base layer and two sides roadbed, specific as follows:
After the pier nose initial set on pile body, it is laid with template, is poured armored concrete base and the road surface two sides on road surface
Way of concrete foundations.
(8) it is laid with bed course and surface layer, specific as follows:
After the initial set of armored concrete base, sandstone is laid with as bed course, pervious asphalt material is laid with and forms surface layer.
Supporting material the preparation method is as follows:
A. liquid silica gel 100kg and lotus leaf powder 3kg, revolving speed 60r/min, stirring are added in closed stirred tank
5min；
B. fumed silica 10kg, revolving speed 80r/min is added, stirs 5min；
C. glass fibre 30kg, revolving speed 40r/min is added, stirs 3min, revolving speed 100r/min, stirs 10min；
D. organotin catalysts 5kg, revolving speed 60r/min is added, stirs 10min, revolving speed 30r/min continues stirring until use
It finishes.
Embodiment 4
The difference from embodiment 1 is that supporting material the preparation method is as follows:
A. liquid silica gel 100kg and lotus leaf powder 4kg, revolving speed 60r/min, stirring are added in closed stirred tank
5min；
B. fumed silica 13kg, revolving speed 80r/min is added, stirs 5min；
C. glass fibre 32kg, revolving speed 40r/min is added, stirs 3min, revolving speed 100r/min, stirs 10min；
D. organotin catalysts 4kg, revolving speed 60r/min is added, stirs 10min, revolving speed 30r/min continues stirring until use
It finishes.
Embodiment 5
The difference from embodiment 1 is that supporting material the preparation method is as follows:
A. liquid silica gel 100kg and lotus leaf powder 5kg, revolving speed 60r/min, stirring are added in closed stirred tank
5min；
B. fumed silica 15kg, revolving speed 80r/min is added, stirs 5min；
C. glass fibre 35kg, revolving speed 40r/min is added, stirs 3min, revolving speed 100r/min, stirs 10min；
D. organotin catalysts 3kg, revolving speed 60r/min is added, stirs 10min, revolving speed 30r/min continues stirring until use
It finishes.
Experiment 1
Apply active force, hydraulic cylinder when detection pile body tilts 1 ° towards the pier nose of pile body in the horizontal direction to by hydraulic cylinder
The active force that pile body is applied.
Specific detection data is shown in Table 1.
Table 1
It can be obtained according to table 1, the pile body prepared in each embodiment resists inclined active force and reached 7.9-8.9N, stability
Height, so that pavement structure stability is strong, bearing capacity is preferable.
As clump diameter increases, the inclined ability of pile body resistance is in rising trend, as glass fibre dosage increases,
It is in rising trend that pile body resists inclined ability.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of construction method that road surface is built on soft foundation, it is characterized in that: the following steps are included:
(1) mud depth is detected；
(2) mould pipe is sunk to, specific as follows:
Mould pipe is sunk to mud at Pile Foundations Design, mould length of tube is greater than mud depth and is drowned into abut with lithosphere；
(3) casting cement slurries, specific as follows:
It casting cement slurries and is stirred in towards mould pipe, mud and cement grout is made to be uniformly mixed to form clump；
(4) pile sinking, specific as follows:
Pile body is sunk to unformed clump, the pile body length is greater than mud depth；
(5) mould pipe is dismantled, specific as follows:
After clump initial set, mould pipe is dismantled；
(6) mud is reinforced, specific as follows:
Stone is sunk to mud to surround clump, forms fixing collar；
(7) concrete base layer and two sides roadbed are poured；
(8) bed course and surface layer are laid with.
2. the construction method according to claim 1 for building road surface on soft foundation, it is characterized in that: the step (4)
Middle pile body uses reinforced concrete pipe pile.
3. the construction method according to claim 2 for building road surface on soft foundation, it is characterized in that: the mould bore
It is 2-3 times of reinforced concrete pipe pile outer diameter.
4. the construction method according to claim 1 for building road surface on soft foundation, it is characterized in that: the step (6)
In, after sinking to stone, it is wrapped circumferentially around outside fixing collar and is tightened along pile body with fishing net.
5. the construction method according to claim 4 for building road surface on soft foundation, it is characterized in that: the step (6)
In, stone volume is not less than 0.5 cubic metre.
6. the construction method according to claim 4 for building road surface on soft foundation, it is characterized in that: the step (6)
In, after fishing net wrapped strengthening circle, supporting material is injected with the pressure of 3-5mpa into mud.
7. the construction method according to claim 6 for building road surface on soft foundation, it is characterized in that: the supporting material
Component including following mass fraction:
100 parts of liquid silica gel；
3-5 parts of organotin catalysts；
30-35 parts of glass fibre；
10-15 parts of fumed silica；
3-5 parts of lotus leaf powder.
8. the construction method according to claim 6 for building road surface on soft foundation, it is characterized in that: the step (6)
In, in the horizontal direction every 10 meters of injection 1kg supporting materials.
9. the construction method according to claim 8 for building road surface on soft foundation, it is characterized in that: the step (6)
In, it is muck surface or less 1.5m that supporting material, which injects depth,.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113718569A (en) * | 2021-08-16 | 2021-11-30 | 广东万业建设集团有限公司 | Construction method for constructing road on soft soil foundation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01219212A (en) * | 1988-02-26 | 1989-09-01 | Mitani Sekisan Co Ltd | Pile or continuous wall and its constructing method |
| CN101405335A (en) * | 2006-01-20 | 2009-04-08 | 莫门蒂夫性能材料股份有限公司 | Sealant composition containing inorganic-organic nanocomposite filler |
| CN101476315A (en) * | 2009-01-16 | 2009-07-08 | 陕西长嘉实业发展有限公司 | Method for processing soft foundation by net bag method |
| CN101748728A (en) * | 2008-10-10 | 2010-06-23 | 上海强劲基础工程有限公司 | Soil cement expanding uplift pile |
| CN103603345A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN204385724U (en) * | 2013-12-06 | 2015-06-10 | 上海申元岩土工程有限公司 | A kind of polyurethane gravel pile |
| CN105350533A (en) * | 2015-12-04 | 2016-02-24 | 中铁第四勘察设计院集团有限公司 | Novel deep soft soil foundation strengthening pile |
| CN106368214A (en) * | 2016-11-17 | 2017-02-01 | 安徽理工大学 | Pile forming operation method for protection barrel type cement soil mixing pile |
-
2018
- 2018-12-27 CN CN201811616042.2A patent/CN109750570A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01219212A (en) * | 1988-02-26 | 1989-09-01 | Mitani Sekisan Co Ltd | Pile or continuous wall and its constructing method |
| CN101405335A (en) * | 2006-01-20 | 2009-04-08 | 莫门蒂夫性能材料股份有限公司 | Sealant composition containing inorganic-organic nanocomposite filler |
| CN101748728A (en) * | 2008-10-10 | 2010-06-23 | 上海强劲基础工程有限公司 | Soil cement expanding uplift pile |
| CN101476315A (en) * | 2009-01-16 | 2009-07-08 | 陕西长嘉实业发展有限公司 | Method for processing soft foundation by net bag method |
| CN103603345A (en) * | 2013-10-31 | 2014-02-26 | 周兆弟 | Cement mixing grouting pile foundations and forming method |
| CN204385724U (en) * | 2013-12-06 | 2015-06-10 | 上海申元岩土工程有限公司 | A kind of polyurethane gravel pile |
| CN105350533A (en) * | 2015-12-04 | 2016-02-24 | 中铁第四勘察设计院集团有限公司 | Novel deep soft soil foundation strengthening pile |
| CN106368214A (en) * | 2016-11-17 | 2017-02-01 | 安徽理工大学 | Pile forming operation method for protection barrel type cement soil mixing pile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113718569A (en) * | 2021-08-16 | 2021-11-30 | 广东万业建设集团有限公司 | Construction method for constructing road on soft soil foundation |
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