CN108252301A - High-pressure rotary-spray draws hole construction of Static Pressure Pile method - Google Patents
High-pressure rotary-spray draws hole construction of Static Pressure Pile method Download PDFInfo
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- CN108252301A CN108252301A CN201711016087.1A CN201711016087A CN108252301A CN 108252301 A CN108252301 A CN 108252301A CN 201711016087 A CN201711016087 A CN 201711016087A CN 108252301 A CN108252301 A CN 108252301A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/50—Piles comprising both precast concrete portions and concrete portions cast in situ
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Abstract
The invention discloses a kind of high-pressure rotary-sprays to draw hole construction of Static Pressure Pile method, its key points of the technical solution are that：Include the following steps：S1：Gravel is laid on ground to be driven piles, it is uniform that gravel is shakeout everywhither thickness；S2：Slowly at the uniform velocity topple over clear water to the centre position at the gravel that paves；S3：After clear water infiltrates into grit surface without ponding, 15 ~ 30min is dried, until grit surface moisture evaporation；S4：The gravel on ground to be driven piles is cleared away, the drill bit of conventional drill is positioned at ground to be driven piles, gets recess；S5：Conventional drill is removed, in the recess that conventional drill is drilled out, high-pressure rotary-spray drilling machine in place applies brill by high-pressure rotary-spray drilling machine；S6：High-pressure rotary-spray drilling machine stops boring and carries brill after applying and being drilled into wherein one section of desired depth, and silt cleaning is carried out to drill bit and the stake holes got；S7：High-pressure rotary-spray drilling machine is stretched into stake holes again, spray is repeated and bores；S8：Static pressure pile driver is in place, and pile body is pressed into stake holes.
Description
Technical field
The present invention relates to pile-driving method, more particularly to a kind of high-pressure rotary-spray draws hole construction of Static Pressure Pile method.
Background technology
Common pile-driving method is static pressure pile method in industry, and the advantages of this construction method produces in avoiding impact pile driving
Raw vibration, noise, therefore be widely used in industry and civil buildings.Region residing for these buildings is different, and geology is
Difference, can be while apparent soil compaction effect be generated, it is difficult to penetrate heavily fortified point at some hard soil layers, such as layer of sand, silty sand ground
Hard stratum.
At present, the Chinese patent of Publication No. CN101929158A discloses a kind of statically pressed pile high-pressure whirl jet lead hole construction party
Method, its construction procedure are as follows：First drilling is in place, then high-pressure rotary-spray drilling machine is sprayed low pressure water flow, when under high-pressure rotary-spray drilling machine
After being drilled into hard interlayer, increase irrigation pressure, stop boring after being drilled into absolute altitude；By static pressure machine pile follower after proposition drill bit.
Jet drill rig in the construction process, is directly positioned on ground by this statically pressed pile high-pressure whirl jet lead hole form of construction work
Spray brill is carried out, is easily splashed out in earth's surface and largely mixes the mud for spraying liquid, hinder operation.
Invention content
The object of the present invention is to provide a kind of high-pressure rotary-sprays to draw hole construction of Static Pressure Pile method, and construction environment can be made more whole
It is clean.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of high-pressure rotary-spray draws hole construction of Static Pressure Pile method, it is characterised in that：Include the following steps：
S1：Gravel is laid on ground to be driven piles, it is uniform that gravel is shakeout everywhither thickness；
S2：Slowly at the uniform velocity topple over clear water to the centre position at the gravel that paves；
S3：After clear water infiltrates into grit surface without ponding, 15 ~ 30min is dried, until grit surface moisture evaporation；
S4：The gravel on ground to be driven piles is cleared away, the drill bit of conventional drill is positioned at ground to be driven piles, gets recess；
S5：Conventional drill is removed, in the recess that conventional drill is drilled out, high-pressure rotary-spray drilling machine in place, by high-pressure rotary-spray drilling machine
Apply brill；
S6：High-pressure rotary-spray drilling machine stops boring and carries brill after applying and being drilled into wherein one section of desired depth, to drill bit and the stake got
Hole carries out silt cleaning；
S7：High-pressure rotary-spray drilling machine is stretched into stake holes again, spray is repeated and bores；
S8：Static pressure pile driver is in place, and pile body is pressed into stake holes.
By using above-mentioned technical proposal, during using high-pressure rotary-spray drill hole of drilling machine, the liquid mixing of ejection is drilled dynamic soil
Earth easily forms the mud to splash.Gravel is paved after on piling ground, since water imbibition is poor, moisture all penetrates into gravel
In soil, soil is made to become soft, moistening, the soil of moistening in the construction process, is not easy to raise a huge cloud of dust, and keeps environment whole as possible
It is clean.And soil has one time dried during moisture is absorbed, within this time, moisture evaporation in gravel it is same
When, the moisture in soil continues to permeate so that the moisture absorption in soil obtains evenly；If without the flash-off time of this buffering,
Easily product silt moisture causes mud, part not to be saturated even for soil part.Gravel uniformly paves and can make in evaporation process,
The evaporation degree of gravel everywhere tends to be equal.It is more laborsaving in primary drilling by the soil that clear water infiltrated；Treating piling ground
After getting recess on face, then when carrying out spray using high-pressure rotary-spray drilling machine and boring, more accurate lower brill can either be provided by recess
Position, the side wall of recess also are able to keep out part mud spillage.And recess is soft since depth as shallow, soil property have been obtained by bubble
Rotten, even if being punched on level land, operation difficulty is also little.High-pressure rotary-spray drilling machine is in boring procedure, since soil property is first steeped by water
Soft, so compared to traditional directly by the way of high-pressure rotary-spray drill hole of drilling machine, the mode that this elder generation waters to soil can
Soil hardness is reduced in advance, is made drill bit suffered resistance smaller in boring procedure, is more less likely to occur to shake so that drilled out
Hole positional precision higher.
Further setting：Gravel shakeouts rear occupied area and estimates area less than stake holes.
By using above-mentioned technical proposal, to gravel at when watering, flow is along soil horizontal direction diffusion simultaneously, vertical
It spreads in direction.If gravel shakeouts, area is too big, and the situation that soil is immersed in water is stopped by gravel, it is difficult to see the sprawling of flow clearly
Situation, if hypervolia, after soil is impregnated, soft rotten area is too big, is easily driven around stake holes during drilling
Soil, the inner wall shape for making stake holes is unstable, is difficult to limit pile body during follow-up static pressed pile.And after reducing water percolating capacity,
Soil around stake holes also is able to keep shape, and pile body is made to be not easy to loosen.
Further setting：When toppling over clear water to the gravel that paves, on the basis of clear water spreading range, when clear water in the soil
When the outer profile of sprawling exceeds the outer profile of institute's sanding gravel, stop pouring.
By using above-mentioned technical proposal, immersion range of the clear water to soil can be effectively controlled so that soil is unlikely to
It is too soft rotten, worker can be accommodated and stand, can play a supporting role to pile body.
Further setting：Holding paves spaciousness ventilation at gravel, and grit surface bears zero pressure.
By using above-mentioned technical proposal, during moisture is waited for be evaporated out of gravel gap, grit surface is everywhere
Evaporation rate tends to be equal；If grit surface is under pressure, it is recessed by the soil at pressure, by pressure compaction, compared to it
His position is not yet under pressure place, and moisture is more difficult to evaporate, and easily forms local moisture product and becomes silted up, when at product silt by drilling power, easily
Splash mud.The occurrence of grit surface can not reduced this by pressure probability.
Further setting：When clearing away gravel, gravel is swept to the outer margin contour to pave to gravel at the center for the gravel that paves
Place, and circumferentially shape stacks placement by gravel.
By using above-mentioned technical proposal, after gravel is stacked, on the basis of the ground caved in, blocking mud is increased original
Starch the height of the obstruction splashed out so that the possibility that mud splashes out obstruction is lower.
Further setting：The bit size of conventional drill is more than the bit size of high-pressure rotary-spray drilling machine.
By using above-mentioned technical proposal, conventional drill is first constructed, and the aperture drilled out is bored more than high-pressure rotary-spray drilling machine
The aperture gone out.When high-pressure rotary-spray drilling machine works, the recess first drilled out in conventional drill can be fallen always.Meanwhile it is follow-up under
During stake, pile body enters stake holes from recess, and the diameter bigger of recess can be convenient for pile body being aligned installing.
Further setting：It is excavated manually in the recess that conventional drill is got, the vertical section for making recess is tapered, taper
Big end and ground it is coplanar.
By using above-mentioned technical proposal, after the tapered setting of recess, mouth area increase so that when pile body falls
It is more easily aligned position.Meanwhile inclined surface has more stable knot compared to the vertical plane directly got using conventional drill
Structure is not easy to cave in.
Further setting：High-pressure rotary-spray drilling machine is during spray is bored, every lower brill 500mm ~ 800mm, and silt is carried out to drill bit
Cleaning is primary.
By using above-mentioned technical proposal, if without periodic cleaning, long-term accumulation mud on the drill bit of high-pressure rotary-spray drilling machine
Sand, when being accumulated to silt and falling, the silt being scattered falls in the pit-hole newly got, and easily again blocks pit-hole.
Further setting：Static pressure machine piling process includes the following steps：
S1：The static pressed pile first stage：Grouting pipe is embedded in the hollow lumen of prefabricated pile, is had at prefabricated pile both ends certain
Length in reserve, injected hole is reserved in one end that prefabricated pile is inserted into soil, is cavity in this stage, in injected hole；
S2：Static pressed pile second stage：Injection slurry is prepared, side stake injection slurry uses the ratio of mud as 1:1 cement mortar, separately adds 10%
Bentonite and appropriate retarder, pile end grouting liquid use the ratio of mud as 1:1 neat slurry；
S3：Start grouting pump and start slip casting, stake injection slurry in injection side carries out marginal not slurry side piling, in prefabricated pile process of press in
The slurries amount of slip casting must be able to package pile body and form certain thickness mud film, until prefabricated pile starts to change after being pressed into supporting course
Pile end injection slurry；
S4：The static pressed pile phase III：Pile end grouting liquid is injected, side piling marginal not slurry is injected until prefabricated pile grouting amount reaches design
Stop slip casting when grouting amount or generation certain pressure, an end is enable to form certain enlarged footing, slip casting terminates, static pressure pile-sinking construction
It finishes.
By using above-mentioned technical proposal, this pile pressing method completely avoids vibration, noise caused by impact pile driving
And pollution, have many advantages, such as it is noiseless, without friction, without impact force, pollution-free；Slip casting can be such that pile body is connect with extraneous soil again
It is closer, while after an end can also be made to form enlarged footing, whole center of gravity is located at enlarged footing, makes pile body more stable.
Preferably, backfilling soil in the recess that conventional drill is got, the vacancy of recess is filled up and is compacted.
By using above-mentioned technical proposal, during banketing, the soil and original soil filled out due to after are affixed, to mud
During soil is compacted, the soil filled out after being not only is compacted, and original soil is also compacted, therefore is embedded in the stake in soil
Body is also pressed tighter by soil simultaneously.
In conclusion the invention has the advantages that：
When the 1st, drilling, it is not easy to splash out a large amount of mud；
2nd, pile body can be limited effectively in the construction process with after the completion of construction；
3rd, for drilling machine in boring procedure, soil property is first processed to soft rotten state, and resistance suffered by drill bit is small, is not susceptible to shake.
Specific embodiment
Embodiment 1：A kind of high-pressure rotary-spray draws hole construction of Static Pressure Pile method, suitable for need to pass through rigid clay, sandy soils or
The static pressed pile piling construction of the soil layers such as sandy loam layer.Include the following steps：
S1：Gravel is laid on ground to be driven piles, it is uniform that gravel is shakeout everywhither thickness；
In the step, gravel shakeouts rear occupied area and estimates area less than stake holes.
S2：Slowly at the uniform velocity topple over clear water to the centre position at the gravel that paves；
In the step, fixed pile is first surveyed using total powerstation or polar coordinate method, it is ensured that the position per pile uses self-spraying paint
Mark, it is accurate to make every effort to, and is checked, and ensures that stake holes the center displacement deviation is less than 50mm.Topple over clear water to the gravel that paves
When, on the basis of clear water spreading range, when the outer profile that clear water is spread in the soil exceeds the outer profile of institute's sanding gravel, stop
It pours.
S3：After clear water infiltrates into grit surface without ponding, 15 ~ 30min is dried, until grit surface moisture evaporation；
In the step, holding paves spaciousness ventilation at gravel, and grit surface is not subject to any pressure.
S4：The gravel on ground to be driven piles is cleared away, the drill bit of conventional drill is positioned at ground to be driven piles, is got recessed
It falls into；
In the step, when clearing away gravel, gravel is swept at the center for the gravel that paves at the outer margin contour that gravel paves, and will
Circumferentially shape stacks placement to gravel.Mobile conventional drill by drill bit alignment hole position center, while flattens drilling machine to fixed pile is referred to,
Steady, level is placed, the perpendicularity deviation of drilling rod is not more than 1% ~ 1.5%.
S5：Conventional drill is removed, in the recess that conventional drill is drilled out, high-pressure rotary-spray drilling machine in place, by high-pressure rotary-spray
Drilling machine applies brill；
In the step, the bit size of conventional drill is more than the bit size of high-pressure rotary-spray drilling machine.And it is got in conventional drill
Recess excavate manually, the vertical section for making recess is tapered, and the big end of taper and ground are coplanar.It is mobile during concrete operations
Jet drill rig by drill bit alignment hole position center, while flattens drilling machine to fixed pile is referred to, and places steady, horizontal, the verticality of drilling rod
Deviation is not more than 1% ~ 1.5%.After drilling machine is in place, low pressure is carried out first（0.5MPa）Whether smooth hose test is used to check nozzle
Logical, whether pressure is normal.Routinely sequence of construction is constructed, and is not retraced one's steps as far as possible, in order to avoid after ground is pressed again, is caused static pressed pile
Machine sinks；Per pile unwrapping wire twice, stake position is put before first time high-pressure rotary-spray, is put before static pressure machine pressure after the completion of churning for the second time
Stake position, must not discharge stake position in batch, and static pressure machine is avoided to be squeezed in walking pile body and is shifted.
After drilling machine is in place accurate, proceeds by and brill is applied under high-pressure rotary-spray.Stake position top is with few water spray and does not spray water as principle
Apply brill downwards, pumping pressure value is set as 10MPa or so, under be drilled into hard soil layer absolute altitude after, increase pressure pump pressure value（25MPa）
Spray clear water is carried out, rotary speed is 20 ~ 25r/min, to form saturation interfering body of the diameter with stake diameter in hard soil layer,
Stop boring after being drilled into designed elevation.
S6：High-pressure rotary-spray drilling machine stops boring and carries brill after applying and being drilled into wherein one section of desired depth, to drill bit and is got
Stake holes carry out silt cleaning；
The purpose of the step is that stake position soil layer is disturbed by high-pressure rotary-spray diversion, in hard soil layer（Such as powder soil horizon, sand
Layer, silty sand ground）Place forms saturation interfering body, reduces the end resistance and collateral resistance of static pressure pile-sinking；In this step, high-pressure rotary-spray bores
Machine is during spray is bored, every lower brill 500mm ~ 800mm, and it is primary that silt cleaning is carried out to drill bit.Conduit or guide groove handle are used in time
Mud, the water taken out of are cleaned out in time.In the present embodiment, it is primary that the every lower brill 500mm of high-pressure rotary-spray drilling machine proposes brill cleaning.
In drilling process, pumping pressure should be reduced, but remain opening, and a face drill bit blocks；Reduce water spray,
Standard knot is dismantled, standard knot is piled up on the drilling rod piling bin on drilling machine side, in order to avoid in the pipe that lands nozzle is blocked into sand.
S7：High-pressure rotary-spray drilling machine is stretched into stake holes again, spray is repeated and bores；
It after the completion of high-pressure rotary-spray drilling machine applies brill, removes in time, ensures that construction site is smooth, and the same day draws the stake holes that hole finishes, it is quiet
Pile press machine should day pile sinking finish, forbid construction overnight.
S8：Static pressure pile driver is in place, and pile body is pressed into stake holes.
Pile press machine is completed in place, then to be sling stake with crane in 1.5h, and displacement pile machine clamper folder hole makes pile top pair
Quasi- stake position, then leveling pile machine, makes pile body vertical, is strict controlled in pile body perpendicularity deviation≤0.5%, it is ensured that pile body axle center by
Pressure, pile top contraposition deviation≤20 ㎜, it is errorless after again centering, carry out pressing pile construction.
The piling process of Static pressure pile driver includes the following steps：
S1：The static pressed pile first stage：Grouting pipe is embedded in the hollow lumen of prefabricated pile, is had at prefabricated pile both ends certain
Length in reserve, injected hole is reserved in one end that prefabricated pile is inserted into soil, is cavity in this stage, in injected hole；
Grouting pressure table, grouting pump, pulp injection tank and slurries blender are sequentially connected in prefabricated pile upper end, lower end is by leading slurry bifurcated
Pipe forms injected hole in pile top cone wall, and slip casting hole exits horizontal by 20 ° ~ 25 ° angles, lead slurry bifurcated pipe and use steel pipe system upwards
Into being uniformly and symmetrically distributed in pile top plane, casting in cone angle is in 60 ° of precast pile tip, and precast pile tip will with stake diameter and outside
Shape matches, and the structure of pile top is cone pile top.
Stake is hung in pile press machine after stake machine is in place, starts hydraulic chuck and clamps pile body and align piles position center, straightening,
Then start piling, in the static pressure pile-sinking first stage without slip casting.Each pile sinking height is a piling stroke, is sunk repeatedly
The pile driving process of first segment stake is completed in stake；Then with Jointing, the pile driving process of the second section, third section etc. is repeated, so as to
Complete the work progress of a pile.After centering in the adjusting of the verticality of stake and work progress the control of the verticality of stake by stake
Machine is commanded and host operator is completed together.
Pile body offset is controlled to be no more than specification during piling.Once it was found that pile body has apparent movement tendency, it is necessary to immediately
Stop pressure measure（Rocking, sleeper etc. prevent deflected file）Afterwards, then piling again, it is controlled based on oil pressure meter reading during piling
System；During by design requirement pile extension, using welding point, pile top pile extension close in hard stratum is avoided.
S2：Static pressed pile second stage：Injection slurry is prepared, side stake injection slurry uses the ratio of mud as 1:1 cement mortar, it is another to add
10% bentonite and appropriate retarder, pile end grouting liquid use the ratio of mud as 1:1 neat slurry；
S3：Start grouting pump and start slip casting, stake injection slurry in injection side carries out marginal not slurry side piling, in prefabricated pile process of press in
The slurries amount of slip casting must be able to package pile body and form certain thickness mud film, until prefabricated pile starts to change after being pressed into supporting course
Pile end injection slurry；
S4：The static pressed pile phase III：Pile end grouting liquid is injected, side piling marginal not slurry is injected until prefabricated pile grouting amount reaches design
Stop slip casting when grouting amount or generation certain pressure, an end is enable to form certain enlarged footing.
Slip casting terminates, after static pressure pile-sinking construction, soil is backfilled in the recess that conventional drill is got, by recess
Vacancy is filled up and is compacted.
Overall work principle is：
The resistance that high-pressure rotary-spray diversion carries out stake position soil layer disturbance reduction static pressure pile-sinking is then disturbed in static pressure sunk pile to saturation
During kinetoplast, start to inject side stake injection slurry, using the curing timeliness feature of slurries, reinforce Pile side soil, it is deep to treat that pile top reaches design
After degree, injection pile end grouting liquid is further continued for stake end, an end is made to form slip casting enlarged footing, improves bearing capacity of pile tip, work of constructing
Skill is simple, and pile sinking effect is good.
The above embodiments are only explanation of the invention, are not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
It is all protected in the right of invention by Patent Law.
Claims (10)
1. a kind of high-pressure rotary-spray draws hole construction of Static Pressure Pile method, it is characterised in that：Include the following steps：
S1：Gravel is laid on ground to be driven piles, it is uniform that gravel is shakeout everywhither thickness；
S2：Slowly at the uniform velocity topple over clear water to the centre position at the gravel that paves；
S3：After clear water infiltrates into grit surface without ponding, 15 ~ 30min is dried, until grit surface moisture evaporation；
S4：The gravel on ground to be driven piles is cleared away, the drill bit of conventional drill is positioned at ground to be driven piles, gets recess；
S5：Conventional drill is removed, in the recess that conventional drill is drilled out, high-pressure rotary-spray drilling machine in place, by high-pressure rotary-spray drilling machine
Apply brill；
S6：High-pressure rotary-spray drilling machine stops boring and carries brill after applying and being drilled into wherein one section of desired depth, to drill bit and the stake got
Hole carries out silt cleaning；
S7：High-pressure rotary-spray drilling machine is stretched into stake holes again, spray is repeated and bores；
S8：Static pressure pile driver is in place, and pile body is pressed into stake holes.
2. high-pressure rotary-spray according to claim 1 draws hole construction of Static Pressure Pile method, it is characterised in that：Gravel is shared after shakeouing
Area estimates area less than stake holes.
3. high-pressure rotary-spray according to claim 2 draws hole construction of Static Pressure Pile method, it is characterised in that：Incline to the gravel that paves
The when of falling clear water, on the basis of clear water spreading range, when the outer profile that clear water is spread in the soil exceeds the outer profile of institute's sanding gravel
When, stop pouring.
4. high-pressure rotary-spray according to claim 3 draws hole construction of Static Pressure Pile method, it is characterised in that：Holding paves at gravel
Spaciousness ventilation, and grit surface bears zero pressure.
5. high-pressure rotary-spray according to claim 4 draws hole construction of Static Pressure Pile method, it is characterised in that：It, will when clearing away gravel
Gravel is swept at the center for the gravel that paves at the outer margin contour that gravel paves, and circumferentially shape stacks placement by gravel.
6. high-pressure rotary-spray according to claim 5 draws hole construction of Static Pressure Pile method, it is characterised in that：The drill bit of conventional drill
Size is more than the bit size of high-pressure rotary-spray drilling machine.
7. high-pressure rotary-spray according to claim 6 draws hole construction of Static Pressure Pile method, it is characterised in that：It is got in conventional drill
Recess excavate manually, the vertical section for making recess is tapered, and the big end of taper and ground are coplanar.
8. high-pressure rotary-spray according to claim 7 draws hole construction of Static Pressure Pile method, it is characterised in that：High-pressure rotary-spray drilling machine exists
During spray is bored, it is primary to carry out drill bit silt cleaning by every lower brill 500mm ~ 800mm.
9. high-pressure rotary-spray according to claim 8 draws hole construction of Static Pressure Pile method, it is characterised in that：Static pressure machine piling process
Include the following steps：
S1：The static pressed pile first stage：Grouting pipe is embedded in the hollow lumen of prefabricated pile, is had at prefabricated pile both ends certain
Length in reserve, injected hole is reserved in one end that prefabricated pile is inserted into soil, is cavity in this stage, in injected hole；
S2：Static pressed pile second stage：Injection slurry is prepared, side stake injection slurry uses the ratio of mud as 1:1 cement mortar, separately adds 10%
Bentonite and appropriate retarder, pile end grouting liquid use the ratio of mud as 1:1 neat slurry；
S3：Start grouting pump and start slip casting, stake injection slurry in injection side carries out marginal not slurry side piling, in prefabricated pile process of press in
The slurries amount of slip casting must be able to package pile body and form certain thickness mud film, until prefabricated pile starts to change after being pressed into supporting course
Pile end injection slurry；
S4：The static pressed pile phase III：Pile end grouting liquid is injected, side piling marginal not slurry is injected until prefabricated pile grouting amount reaches design
Stop slip casting when grouting amount or generation certain pressure, an end is enable to form certain enlarged footing, slip casting terminates, static pressure pile-sinking construction
It finishes.
10. high-pressure rotary-spray according to claim 9 draws hole construction of Static Pressure Pile method, it is characterised in that：It is beaten in conventional drill
The recess backfill soil gone out, the vacancy of recess is filled up and is compacted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016087.1A CN108252301B (en) | 2017-10-26 | 2017-10-26 | High-pressure jet grouting hole-leading static pressure pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711016087.1A CN108252301B (en) | 2017-10-26 | 2017-10-26 | High-pressure jet grouting hole-leading static pressure pile construction method |
Publications (2)
| Publication Number | Publication Date |
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| CN108252301A true CN108252301A (en) | 2018-07-06 |
| CN108252301B CN108252301B (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711016087.1A Active CN108252301B (en) | 2017-10-26 | 2017-10-26 | High-pressure jet grouting hole-leading static pressure pile construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152461A (en) * | 2021-04-19 | 2021-07-23 | 武汉市金港岩土工程有限公司 | Construction method of efficient environment-friendly static pressure pile |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967700A (en) * | 1995-12-04 | 1999-10-19 | Gunther; Johan M. | Lime/cement columnar stabilization of soils |
| CN101929158A (en) * | 2010-09-13 | 2010-12-29 | 天津天一建设集团有限公司 | Statically pressed pile high-pressure whirl jet lead hole construction method |
| CN106522213A (en) * | 2016-11-01 | 2017-03-22 | 浙江省岩土基础公司 | Rotary jet grouting bar inserting type mini pile construction method |
-
2017
- 2017-10-26 CN CN201711016087.1A patent/CN108252301B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967700A (en) * | 1995-12-04 | 1999-10-19 | Gunther; Johan M. | Lime/cement columnar stabilization of soils |
| CN101929158A (en) * | 2010-09-13 | 2010-12-29 | 天津天一建设集团有限公司 | Statically pressed pile high-pressure whirl jet lead hole construction method |
| CN106522213A (en) * | 2016-11-01 | 2017-03-22 | 浙江省岩土基础公司 | Rotary jet grouting bar inserting type mini pile construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113152461A (en) * | 2021-04-19 | 2021-07-23 | 武汉市金港岩土工程有限公司 | Construction method of efficient environment-friendly static pressure pile |
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| Publication number | Publication date |
|---|---|
| CN108252301B (en) | 2020-04-07 |
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