CN109914401A - Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method - Google Patents
Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method Download PDFInfo
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- CN109914401A CN109914401A CN201910313366.7A CN201910313366A CN109914401A CN 109914401 A CN109914401 A CN 109914401A CN 201910313366 A CN201910313366 A CN 201910313366A CN 109914401 A CN109914401 A CN 109914401A
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Abstract
A kind of superficial layer of sand of the present invention is saturated layer of sand cement-soil stirring pile construction device and method, and power head is provided on pile frame, and power head connects extra quality drilling rod, and extra quality drilling rod connects extra quality drill bit；Slurries transfer pipeline and auxiliary agent transfer pipeline are provided on extra quality drilling rod；The upper and lower agent liquid mouth for being provided with the upper and lower mouth spray being connected to slurries transfer pipeline on extra quality drill bit and being connected to auxiliary agent transfer pipeline, independent pulping system and formulation system are provided with by pile frame, pulping system connects the slurries transfer pipeline in extra quality drilling rod with slurry pipe by stock pump, and pulping system connects the auxiliary agent transfer pipeline in extra quality drilling rod by agent pump with agent liquid pipe.Binder slurries, accelerator or early strength agent and sand are uniformly mixed by this equipment when working, form uniform stirring pile body, it avoids binder slurries and free sedimentation occurs again under the effect of gravity for sand, the loss that penetration in layer of sand acts on lower binder slurries is effectively reduced, the loss of binder slurries is reduced.
Description
Technical field
The present invention relates to technical field of civil engineering, further to a kind of cement-soil stirring pile construction method, specifically
For be related to a kind of superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method.
Background technique
Existing cement-soil stirring pile construction method, it is difficult to realize superficial layer of sand or saturation layer of sand in cement mixing method at
Stake, main cause are that sand becomes suspended particulate under the action of strong stirring, and cement slurry and sand are under the effect of gravity again
Free sedimentation occurs, causes mortar separation at the top of layer of sand, while layer of sand is permeable that seepage flow descend to lead to the loss of binder slurries higher.
Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction method, the mainly mixing speed and increasing by reducing processor at present
The volume of adding additives to improve superficial layer of sand or be saturated the pile quality of layer of sand cement mixing method, but still is difficult to take out
Superficial layer of sand or the core sample for being saturated layer of sand cement mixing method, and quality is unable to control, and has both reduced the life of cement mixing method
Efficiency is produced, and wastes a large amount of binder, it is often more important that quality not can guarantee and intensity is low.
Summary of the invention
Technical problem to be solved by the present invention lies in, overcome problems of the prior art, provide superficial layer of sand or
It is saturated layer of sand cement-soil stirring pile construction device and method.
Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction equipment include: pile frame, are provided with power head on pile frame, move
Power head connects extra quality drilling rod, and extra quality drilling rod connects extra quality drill bit；Slurries transfer pipeline and auxiliary agent conveying are provided in extra quality drilling rod
Pipeline；The upper and lower mouth spray being connected to slurries transfer pipeline is provided on extra quality drill bit and be connected to auxiliary agent transfer pipeline it is upper,
Lower dose of liquid mouth, is provided with pulping system and formulation system by pile frame, and pulping system is by stock pump and starches pipe and connects in extra quality drilling rod
Slurries transfer pipeline, pulping system connects the auxiliary agent transfer pipeline in extra quality drilling rod by agent pump with agent liquid pipe.
Extra quality chisel edge setting is of five storeys every layer of stirring blade 3, and bottom is equipped with 2 cut-off blades, amounts to 6 layers of blade,
The spacing of every layer of blade is 0.5m.
Upper mouth spray 2, is arranged symmetrically, and is located at the top of extra quality drill bit 10cm above stirring blade；Lower mouth spray 2,
It is arranged symmetrically, is in sustained height with extra quality drill bit bottom cut-off blade；The spacing of upper and lower mouth spray is 2.6m.
Upper dose 2, liquid mouth, be arranged symmetrically, upper dose liquid mouth and upper mouth spray are in sustained height, or positioned at upper mouth spray
Within the 10cm of top；It lower dose 2, liquid mouth, is arranged symmetrically, lower dose of liquid mouth and lower dose of liquid mouth are in sustained height, or are located at lower whitewashing
Within the lower section 10cm of mouth.
Flowmeter is respectively arranged on the stock pump and agent pump.
Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction method:
A. the laying of coating；
When stake top is located on ground table or sea bed face, construction stake top coating, coating are the sand of 1~2m of thickness first；
Stake top locate below ground level or sea bed below when, be usually upper caldding layer using Rock And Soil more than stake top.
B. the positioning of mixing pile construction equipment and lower brill；
Start power head, extra quality drilling rod and extra quality drill bit rotate and by boring under certain speed, and extra quality drill bit stirring is cut
The soil body, going down process observe the variation of power head current or torque, under when drilling near a bottom hard stratum, reduce running speed,
When electric current or torque sharply persistently rise, stock pump is opened, starches pipe water delivery, at this time under the lower mouth spray water spray auxiliary of extra quality drill bit
Be drilled into a bottom absolute altitude, under be drilled into after a bottom absolute altitude and close stock pump and stop water spray, and open pulping system slurrying.
C. stake bottom is managed；
Under be drilled into design bottom absolute altitude after 1~2m of stake bottom promoted and it is lower brill stir again；Brill stirring is proposed after stirring again, proposes brill stirring
Distance be generally extra quality drill bit the spacing of mouth spray add 20cm up and down, to guarantee that whitewashing interface overlap joint is no less than 20cm up and down,
And according to equipment situation and speed is promoted, stock pump is opened, pipe delivery of glue slurries is starched, opens the lower mouth spray of extra quality drill bit,
When the spacing of distance close to upper and lower mouth spray that extra quality drill bit is promoted adds 20cm, binder slurries should be by slurry pipe and extra quality drilling rod
Interior water squeezes out；After the spacing that stirring promotes mouth spray up and down adds 20cm, mouth spray persistently sprays binder slurry under extra quality drill bit
It is drilled into a bottom absolute altitude under liquid stirring, is then shut off mouth spray under stock pump and extra quality drill bit, and carries out 1~2m of bottom promotion and a lower brill
It stirs again, guarantees that stake bottom is uniformly mixed.Slurry stream meter monitors slurry flow in real time, to guarantee that the binder for stirring native stake is mixed
Amount.
D. pile body top is handled；
Stake bottom after treatment opens stock pump, starches pipe delivery of glue slurries, mouth spray spray binder slurry on extra quality drill bit
Liquid stirring is promoted, and when upper dose liquid mouth is close to layer of sand bottom absolute altitude, opens that formulation system prepares accelerator or early strength agent is water-soluble in advance
Liquid, then agent pump is opened, agent liquid pipe conveys accelerator or early strength agent aqueous solution, agent liquid mouth injection accelerator or early strong on extra quality drill bit
Agent aqueous solution, extra quality drill bit mix accelerator or early strength agent aqueous solution, binder slurries with soil shear failure.It is mixed according to binder
Amount or flow control accelerator or early strength agent aqueous solution volume or flow by a certain percentage, and agent flow meters monitor accelerator in real time
Or the flow of early strength agent, control accelerator or early strength agent additive ratio in binder.Agent liquid mouth sustained firing rapid hardening on extra quality drill bit
Agent or early strength agent aqueous solution, when agent liquid mouth is high not less than layer of sand top mark on extra quality drill bit or stake top absolute altitude, turn off agent pump and
Formulation system stops the injection of accelerator or early strength agent aqueous solution.Mouth spray spray binder slurries stirring is promoted on extra quality drill bit,
When mouth spray is close to stake top on extra quality drill bit, pulping system is closed, while starching pipe conveying water, water squeezes the slurries starched in pipe
Out, and when mouth spray is not less than stake top on extra quality drill bit, stock pump is closed.Extra quality drill bit persistently promotes the lower spray of stirring to drill bit
Mouth is starched, stake top absolute altitude is higher than, terminates stake processed, closes power head.
E. pipeline and drill bit cleaning；
Cleaning slurry pipe, agent liquid pipe and extra quality drill bit after stake processed.It works continuously and does not clean system in the case where constructing generally
Agent system and pulping system, are cleaned again after construction.
F. equipment is moved to next position.B~e is repeated, cement-soil stirring pile construction all in construction area is completed.
The utility model has the advantages that compared with prior art, whitewashed by the way of the combination of upper and lower mouth spray, can make whitewashing with
The soil body is adequately stirred, and especially upper mouth spray, when drilling rod above mentions, slurries are stirred blade and are stirred, at reinforcing
Weak soil basis is managed, uniform intensity, uniform density, higher bearing capacity and preferable water-stagnating effect, construction is made it have and makes
Valence is low, and full automatic backstage pulp feeding system controls dust pollution in work progress, and non-environmental-pollution is environmentally protective.
The utility model has the advantages that superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method, mainly by adding one
Independent auxiliary agent (accelerator or early strength agent) supply system is covered, in superficial layer of sand or saturation layer of sand Soil-cement work progress
By independent supply system, pipeline and spray material port, binder slurries and auxiliary agent (accelerator or early strength agent) are sprayed into, drill bit will glue
Knot agent slurries, accelerator or early strength agent and sand are uniformly mixed, and accelerator or early strength agent accelerate binder solidification, and fast
Fast is cemented together by sand, mud and stone etc., forms uniform stirring pile body, avoids binder slurries and sand in weight
Free sedimentation occurs again under power effect, effectively reduces the loss that penetration in layer of sand acts on lower binder slurries, reduces
The loss of binder slurries, does not influence the efficiency of construction, and can improve the early strength of mixing pile, as entire pile body Duan Junjia
When entering accelerator or early strength agent, it can substantially shorten construction total construction period.
Detailed description of the invention
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments；
Fig. 1 is extra quality drill bit structure schematic diagram of the present invention.
Fig. 1 a is A --- the A diagrammatic cross-section of Fig. 1.
Fig. 2 is superficial layer of sand of the present invention or saturation layer of sand cement-soil stirring pile construction device structure schematic diagram.
Fig. 3 a is that coating is laid with schematic diagram.
Fig. 3 b is the positioning of mixing pile construction equipment and lower brill schematic diagram.
Fig. 3 c is stake bottom processing schematic；
Fig. 3 d is pile body top processing schematic；
Fig. 3 e is that pipeline and drill bit clean schematic diagram.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Conjunction is specifically illustrating, and the present invention is further explained.
Referring to Fig. 1, Fig. 1 a and Fig. 2, construction equipment includes: pile frame 1, and power head 2, power head connection are provided on pile frame 1
Extra quality drilling rod 3, extra quality drilling rod 3 connect extra quality drill bit 4；Slurries transfer pipeline 31 and auxiliary agent delivery pipe are provided in extra quality drilling rod 3
Road 32；It is provided with the upper and lower mouth spray 41,42 being connected to slurries transfer pipeline on extra quality drill bit 4 and connects with auxiliary agent transfer pipeline
Logical upper and lower agent liquid mouth 43,44, pulping system 51 and formulation system 52 are provided with by pile frame, and pulping system 51 passes through stock pump 71
The slurries transfer pipeline 31 in extra quality drilling rod is connected with slurry pipe 81, formulation system 52 connects extra quality by agent pump 72 and agent liquid pipe 82
Auxiliary agent transfer pipeline 32 in drilling rod.
The inside of extra quality drill bit 4 there are independent slurries transfer pipeline 31 and auxiliary agent transfer pipeline 32, extra quality drill bit it is upper
There are upper dose liquid mouth 43 and upper mouth spray 41, upper dose liquid mouths 43 to be higher than upper mouth spray 41, agent in the presence of the lower part of extra quality drill bit in portion
Liquid mouth 44 and lower mouth spray 42, lower dose of liquid mouth 44 is lower than lower mouth spray 42, to realize that binder slurries and auxiliary agent independently inject soil
Binder slurries, auxiliary agent and the soil body are thoroughly mixed by body, stirring blade.
Extra quality chisel edge setting is of five storeys paddle 45 every layer 3, and bottom is equipped with 2 cut-off blades 46, amounts to 6 layers
Blade, the spacing of every layer of blade are 0.5m.
Upper mouth spray 2, is arranged symmetrically, and is located at the top of extra quality drill bit 10cm above stirring blade；Lower mouth spray 2,
It is arranged symmetrically, is in sustained height with extra quality drill bit bottom cut-off blade；The spacing of upper and lower mouth spray is 2.6m.
Upper dose 2, liquid mouth, be arranged symmetrically, upper dose liquid mouth and upper mouth spray are in sustained height, or positioned at upper mouth spray
Within the 10cm of top；It lower dose 2, liquid mouth, is arranged symmetrically, lower dose of liquid mouth and lower dose of liquid mouth are in sustained height, or are located at lower whitewashing
Within the lower section 10cm of mouth.
It is as follows that pulping system prepares slurry processes: the binder in binder silo is delivered to binder weighing by cage
Measuring container, water is by water pump pumps to water measuring container is claimed, and the binder slurries ratio of mud is preferably 0.6~0.9, then by binder
The water of binder and title water measuring container in Weighing container, which is added in agitator, stirs 1~3min, will finally be stirred
Slurries inject slurry storing tank, repeat above procedure prepare binder slurries.
It is as follows that formulation system prepares compounding agent solution process: superficial layer of sand or the auxiliary agent for being saturated layer of sand cement-soil stirring pile construction
The accelerator or early strength agent pulvis or liquid not reacted with water generation rapid hardening preferably, when auxiliary agent is accelerator or early strength agent pulvis
When, accelerator or early strength agent in silo are delivered to Weighing container by cage, and water is by water pump pumps to claiming water metering
Container, then will accelerator in metering container or early strength agent and claim the water of water measuring container be added stirring 20 in agitator~
The compounding agent solution being stirred finally is injected storage bucket by 60s, is repeated above procedure and is prepared accelerator or early strength agent solution, rapid hardening
Agent or early strength agent incorporation are the 2%~6% of bond quality, and the ratio of mud of accelerator or early strength agent is preferably 1:1~4:1, bonding
The ratio of mud of agent slurries ratio of mud hour, accelerator or early strength agent preferably takes large values, and vice versa；When auxiliary agent is for accelerator or early strong
When agent liquid, accelerator or early strength agent are pumped to Weighing container by agent, and water is by water pump pumps to claiming water metering to hold
Device, then by the accelerator or early strength agent in metering container and claim the water of water measuring container that agitation and dilution in storage bucket, weight is added
Multiple above procedure prepares accelerator or early strength agent solution, and accelerator or early strength agent incorporation are the 2%~6% of bond quality, speed
The dilution ratio of solidifying agent or early strength agent is preferably 1:1~4:1 (water: accelerator or early strength agent liquid), and the binder slurries ratio of mud is small
When, the ratio of mud of accelerator or early strength agent preferably takes large values, and vice versa.Accelerator or early strength agent incorporation and accelerator are early strong
The ratio of mud (or dilution ratio of accelerator or early strength agent) of agent should be promoted according to the Leaf positional distribution length of stirring drill bit, stirring
Lower brill speed and accelerator rapid hardening effect or early strength agent early strong effect, pass through test determine.
With continued reference to Fig. 2
Power head 2 is hung on pile frame 1, and power head 2 connects extra quality drilling rod 3, and extra quality 3 end of drilling rod connects extra quality drill bit 4；
Pulping system prepares slurries, and slurries are supplied to the extra quality drilling rod below power head through slurry stream meter and slurry pipe after being pressurizeed by stock pump
It in 3, and is sprayed from the mouth spray of extra quality drill bit 4, injects the soil body；Formulation system prepares compounding agent solution, through agent liquid after agent pump pressurization
Flowmeter and agent liquid pipe are supplied in the extra quality drilling rod 3 below power head, and are sprayed from the agent liquid mouth of extra quality drill bit, injection soil
Body.
Referring to Fig. 3
Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction method:
A. the laying of coating.When stake top is located on ground table or sea bed face, stake top coating of constructing first, coating
The usually sand of 1~2m of thickness.Stake top locate below ground level or sea bed below when, be usually above to cover using Rock And Soil more than stake top
Cap rock.
B. the positioning of mixing pile construction equipment and lower brill.Start power head, extra quality drilling rod 3 and extra quality drill bit 4 rotate and press one
It is bored under fixed speed, extra quality drill bit stirs cutting soil, and going down process observes the variation of power head current or torque, and combines and survey
The data of examining judges superficial layer of sand or the actual (real) thickness and distribution absolute altitude that are saturated layer of sand, under when drilling near a bottom hard stratum, reduce
Running speed (can suitably reduce revolving speed), when electric current or torque sharply persistently rise, open stock pump 71, starch pipe water delivery, at this time
Be drilled into a bottom absolute altitude under the water spray auxiliary of lower mouth spray 42 of extra quality drill bit, under be drilled into after a bottom absolute altitude and close stock pump and stop water spray,
And open pulping system slurrying.
C. stake bottom is managed.Under be drilled into design bottom absolute altitude after 1~2m of stake bottom promoted and it is lower brill stir again；Brill is mentioned after stirring again to stir
It mixes, mentions and bore the distance of stirring and be generally extra quality drill bit the spacing of mouth spray adds 20cm up and down, to guarantee whitewashing interface overlap joint up and down
No less than 20cm, and according to equipment situation and speed is promoted, stock pump 71 is opened, 81 delivery of glue slurries of pipe are starched, is opened extra quality
The lower mouth spray 42 of drill bit, when the spacing of distance close to upper and lower mouth spray that extra quality drill bit is promoted adds 20cm, binder slurries
Water in slurry pipe and extra quality drilling rod should be squeezed out；After the spacing that stirring promotes mouth spray up and down adds 20cm, sprayed under extra quality drill bit
Slurry mouth 42, which persistently sprays, is drilled into a bottom absolute altitude under the stirring of binder slurries, is then shut off mouth spray 42 under stock pump 71 and extra quality drill bit,
And carry out that a 1~2m of bottom is promoted and lower brill stirs again, guarantee that stake bottom is uniformly mixed.Slurry stream meter monitors slurry stream in real time
Amount, to guarantee to stir the binder volume of native stake.
D. pile body top is handled.Stake bottom after treatment opens stock pump 71, starches 81 delivery of glue slurries of pipe, extra quality drill bit
Upper mouth spray 41 sprays the stirring of binder slurries and is promoted, and when upper dose liquid mouth 43 is close to layer of sand bottom absolute altitude, opens formulation system in advance
52 prepare accelerator or early strength agent aqueous solution, then open agent pump 72, and agent liquid pipe 82 conveys accelerator or early strength agent aqueous solution, extra quality
Agent liquid mouth 43 sprays accelerator or early strength agent aqueous solution on drill bit, and extra quality drill bit is by accelerator or early strength agent aqueous solution, binder
Slurries are mixed with soil shear failure.Accelerator or early strength agent aqueous solution volume are controlled by a certain percentage according to binder volume or flow
Or flow, agent flow meters monitor the flow of accelerator or early strength agent in real time, control accelerator or early strength agent incorporation in binder
Than.43 sustained firing accelerator of agent liquid mouth or early strength agent aqueous solution on extra quality drill bit, when agent liquid mouth 43 is not less than on extra quality drill bit
When layer of sand top mark height or stake top absolute altitude, agent pump 72 and formulation system 52 are turned off, the spray of accelerator or early strength agent aqueous solution is stopped
It penetrates.Mouth spray 41 sprays the stirring of binder slurries and is promoted on extra quality drill bit, when mouth spray 41 is close to stake top on extra quality drill bit, closes
Pulping system, while pipe conveying water is starched, water is squeezed out the slurries in pipe are starched, and is worked as mouth spray 41 on extra quality drill bit and be not less than stake top
When, close stock pump.Extra quality drill bit persistently promotes the lower mouth spray 42 of stirring to drill bit, is higher than stake top absolute altitude, terminates stake processed, closes
Power head.
E. pipeline and drill bit cleaning.Cleaning slurry pipe, agent liquid pipe and extra quality drill bit after stake processed.It works continuously the feelings of construction
It is generally unclear under condition to wash formulation system and pulping system, it is cleaned again after construction.
F. equipment is moved to next position.B~e is repeated, cement-soil stirring pile construction all in construction area is completed.
Certainly single shaft, multiple-rotor mixer etc. be can be in the above-mentioned machine that draws, should be individually present for agent system and pulp feeding system,
For agent system can also for other auxiliary agents or binder etc., mouth spray and agent liquid mouth can be individually present and also outlet position
Set shared, speed can also only can be added with individualism on drilling rod in upper and lower mouth spray and upper and lower agent liquid mouth in layer of sand
Solidifying agent or early strength agent can also be added with pile body full section, and stake bottom is stirred number again and can be adjusted according to soil layer property or according to drill bit
Type adjustment, mixing pile construction can be by land or in the sea, these are all the common sense of this field, herein few narration.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel only illustrate the present invention it should be appreciated that the present invention is not limited by examples detailed above described in examples detailed above and specification
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its is equal
Object defines.
Claims (11)
1. superficial layer of sand is saturated layer of sand cement-soil stirring pile construction equipment, including pile frame, power head, power are provided on pile frame
Head connects extra quality drilling rod, and extra quality drilling rod connects extra quality drill bit；It is characterized in that: being provided with slurries transfer pipeline on extra quality drilling rod and helping
Agent transfer pipeline；It is provided with the upper and lower mouth spray being connected to slurries transfer pipeline on extra quality drill bit and connects with auxiliary agent transfer pipeline
Logical upper and lower agent liquid mouth, independent pulping system and formulation system are provided with by pile frame, and pulping system passes through stock pump and slurry Guan Lian
The slurries transfer pipeline in extra quality drilling rod is connect, pulping system connects the auxiliary agent delivery pipe in extra quality drilling rod by agent pump with agent liquid pipe
Road.
2. superficial layer of sand according to claim 1 or saturation layer of sand cement-soil stirring pile construction equipment, characterized in that slurries
Extra quality drilling rod is arranged internally and/or externally in transfer pipeline and auxiliary agent transfer pipeline；Slurries transfer pipeline and auxiliary agent transfer pipeline
Independently of each other, upper dose liquid mouth is higher than upper mouth spray, and lower dose of liquid mouth is lower than lower mouth spray.
3. superficial layer of sand according to claim 1 or saturation layer of sand cement-soil stirring pile construction equipment, characterized in that extra quality
Five layers of every layer of stirring blade 3 are provided on drill bit, bottom is equipped with one layer every layer of cut-off blade 2, six layers of every interlamellar spacing of blade
For 0.5m.
4. superficial layer of sand according to claim 1 or saturation layer of sand cement-soil stirring pile construction equipment, characterized in that upper spray
Starching mouth is 2, is arranged symmetrically, and upper mouth spray is located at the top of extra quality drill bit above stirring blade at 10cm；Lower mouth spray is 2,
It is arranged symmetrically, lower whitewashing is in sustained height with extra quality drill bit bottom cut-off blade；The spacing of upper and lower mouth spray is 2.6m.
5. superficial layer of sand according to claim 1 or saturation layer of sand cement-soil stirring pile construction equipment, characterized in that upper agent
Liquid mouth is 2, is arranged symmetrically, and upper dose liquid mouth and upper mouth spray are in sustained height, or positioned at upper mouth spray top 10cm with
It is interior；Lower dose of liquid mouth is 2, is arranged symmetrically, and lower dose of liquid mouth and lower dose of liquid mouth are in sustained height, or positioned at the lower section of lower mouth spray
Within 10cm.
6. superficial layer of sand according to claim 1 or saturation layer of sand cement-soil stirring pile construction equipment, characterized in that described
Flowmeter is respectively arranged on stock pump and agent pump.
7. superficial layer of sand or saturation layer of sand cement-soil stirring pile construction method, characterized in that the following steps are included:
A. the laying of coating；
When stake top is located on ground table or sea bed face, construction stake top coating, coating are the sand of 1~2m of thickness first；Stake top
Locate below ground level or sea bed below when, using Rock And Soil more than stake top be upper caldding layer；
B. the positioning of mixing pile construction equipment and lower brill；
Start power head, extra quality drilling rod and the rotation of extra quality drill bit and lower brill, extra quality drill bit stirs cutting soil, going down process observation
The variation of power head current or torque, under when drilling near a bottom hard stratum, running speed is reduced, when electric current or torque are sharply held
When continuous rising, stock pump is opened, starches pipe water delivery, is drilled into a bottom absolute altitude, lower brill under the lower mouth spray water spray auxiliary of extra quality drill bit at this time
Stock pump is closed after to stake bottom absolute altitude and stops water spray, and opens pulping system slurrying；
C. stake bottom is managed；
Under be drilled into design bottom absolute altitude, then 1~2m of stake bottom promoted and it is lower brill stir again；Brill stirring is proposed after stirring again, proposes brill stirring
Distance be that the spacing of mouth spray adds 20cm to extra quality drill bit up and down, to guarantee that whitewashing interface overlap joint is no less than 20cm, and root up and down
According to equipment situation and speed is promoted, stock pump is opened, starches pipe delivery of glue slurries, the lower mouth spray of extra quality drill bit is opened, when double
When the spacing of distance close to upper and lower mouth spray that material drill bit is promoted adds 20cm, binder slurries manage slurry and the water in extra quality drilling rod
It squeezes out；After the spacing that stirring promotes mouth spray up and down adds 20cm, mouth spray persistently sprays the stirring of binder slurries under extra quality drill bit
Under be drilled into a bottom absolute altitude, be then shut off mouth spray under stock pump and extra quality drill bit, and carry out that a 1~2m of bottom is promoted and lower brill stirs again,
Guarantee that stake bottom is uniformly mixed；
D. pile body top is handled；
Stake bottom after treatment, opens stock pump, starches pipe delivery of glue slurries, and mouth spray spray binder slurries stir on extra quality drill bit
Promotion is mixed, when upper dose liquid mouth is close to layer of sand bottom absolute altitude, formulation system is opened in advance and prepares accelerator or early strength agent aqueous solution, then
Agent pump is opened, agent liquid pipe conveys accelerator or early strength agent aqueous solution, agent liquid mouth injection accelerator or early strength agent water on extra quality drill bit
Solution, extra quality drill bit mix accelerator or early strength agent aqueous solution, binder slurries with soil shear failure；Agent liquid mouth on extra quality drill bit
Sustained firing accelerator or early strength agent aqueous solution, when agent liquid mouth is not less than layer of sand top mark height or stake top absolute altitude on extra quality drill bit,
Agent pump and formulation system are turned off, the injection of accelerator or early strength agent aqueous solution is stopped；Mouth spray sprays binder on extra quality drill bit
Slurries stirring is promoted, and when mouth spray is close to stake top on extra quality drill bit, closes pulping system, while starching pipe conveying water, and water will be starched
Slurries in pipe squeeze out, and when mouth spray is not less than stake top on extra quality drill bit, close stock pump；Extra quality drill bit persistently promotes stirring
To the lower mouth spray of drill bit, it is higher than stake top absolute altitude, terminates stake processed, closes power head；
E. pipeline and drill bit cleaning；
Cleaning slurry pipe, agent liquid pipe and extra quality drill bit after stake processed, do not cleaned in the case where construction of working continuously formulation system and
Pulping system is cleaned again after construction；
F. equipment is moved to next position；B~step e is repeated, cement-soil stirring pile construction all in construction area is completed.
8. superficial layer of sand according to claim 7 or saturation layer of sand cement-soil stirring pile construction method, characterized in that preparation
System supplies accelerator or early strength agent or flocculant or other binders.
9. superficial layer of sand according to claim 7 or saturation layer of sand cement-soil stirring pile construction method, characterized in that stirring
Spray into auxiliary agent when mixing lower drilled as holes, when stake bottom reason and the processing of pile body top, sprays into binder slurries again, realize superficial layer of sand or
It is saturated the purpose of layer of sand cement mixing method.
10. superficial layer of sand according to claim 7 or saturation layer of sand cement-soil stirring pile construction method, characterized in that double
After expecting drill bit agent liquid mouth injection accelerator or early strength agent aqueous solution, all stirring blades of extra quality drill bit are complete before bonding initial set
At the stirring of the pile body section, after agent liquid mouth injection accelerator on extra quality drill bit or early strength agent aqueous solution, the promotion of extra quality drill bit
Speed is greater than the distribution length of drilling rod blade divided by the presetting period of binder.
11. superficial layer of sand according to claim 7 or saturation layer of sand cement-soil stirring pile construction method, characterized in that institute
It reacts to each other in the soil body after stating binder liquid and auxiliary agent ejection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910313366.7A CN109914401A (en) | 2019-04-18 | 2019-04-18 | Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313366.7A CN109914401A (en) | 2019-04-18 | 2019-04-18 | Superficial layer of sand or saturation layer of sand cement-soil stirring pile construction device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719552A (en) * | 2020-06-28 | 2020-09-29 | 建基建设集团有限公司 | Construction method of cement mixing pile equipment |
| WO2021135156A1 (en) * | 2019-12-29 | 2021-07-08 | 北京中岩大地科技股份有限公司 | Construction apparatus for deep stirring by using curing material and construction method therefor |
| CN114000501A (en) * | 2021-12-13 | 2022-02-01 | 上海强劲地基工程股份有限公司 | Construction method of large-diameter land four-axis mixing pile |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705500Y (en) * | 2003-03-04 | 2005-06-22 | 富光营造有限公司 | Soft soil foundation reinforced improving device |
| JP2005180168A (en) * | 2003-12-23 | 2005-07-07 | Ujisu:Kk | Replaceable columnar hardened formation device and formation method |
| US20050186035A1 (en) * | 2003-05-22 | 2005-08-25 | Yong-Hyun Kim | Rapid-set injection system using high-speed jet fluid |
| KR20100122068A (en) * | 2010-10-19 | 2010-11-19 | 문동춘 | Grouting method using enlarged concrete consolidation grouting apparatus |
| CN102535449A (en) * | 2011-12-29 | 2012-07-04 | 东南大学 | Construction method of stirring pile and solidifying agent device thereof |
| CN204080817U (en) * | 2014-04-30 | 2015-01-07 | 上海城地建设股份有限公司 | A kind of novel dual spindle soil-cement agitation pile device changing whitewashing up and down |
| CN104480932A (en) * | 2014-12-15 | 2015-04-01 | 中铁十九局集团有限公司 | Construction method of cement mixing pile for saline-alkali sludge soft foundation |
| CN210031785U (en) * | 2019-04-18 | 2020-02-07 | 上海强劲地基工程股份有限公司 | Cement-soil mixing pile construction equipment for shallow sand layer or saturated sand layer |
-
2019
- 2019-04-18 CN CN201910313366.7A patent/CN109914401A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705500Y (en) * | 2003-03-04 | 2005-06-22 | 富光营造有限公司 | Soft soil foundation reinforced improving device |
| US20050186035A1 (en) * | 2003-05-22 | 2005-08-25 | Yong-Hyun Kim | Rapid-set injection system using high-speed jet fluid |
| JP2005180168A (en) * | 2003-12-23 | 2005-07-07 | Ujisu:Kk | Replaceable columnar hardened formation device and formation method |
| KR20100122068A (en) * | 2010-10-19 | 2010-11-19 | 문동춘 | Grouting method using enlarged concrete consolidation grouting apparatus |
| CN102535449A (en) * | 2011-12-29 | 2012-07-04 | 东南大学 | Construction method of stirring pile and solidifying agent device thereof |
| CN204080817U (en) * | 2014-04-30 | 2015-01-07 | 上海城地建设股份有限公司 | A kind of novel dual spindle soil-cement agitation pile device changing whitewashing up and down |
| CN104480932A (en) * | 2014-12-15 | 2015-04-01 | 中铁十九局集团有限公司 | Construction method of cement mixing pile for saline-alkali sludge soft foundation |
| CN210031785U (en) * | 2019-04-18 | 2020-02-07 | 上海强劲地基工程股份有限公司 | Cement-soil mixing pile construction equipment for shallow sand layer or saturated sand layer |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021135156A1 (en) * | 2019-12-29 | 2021-07-08 | 北京中岩大地科技股份有限公司 | Construction apparatus for deep stirring by using curing material and construction method therefor |
| CN111719552A (en) * | 2020-06-28 | 2020-09-29 | 建基建设集团有限公司 | Construction method of cement mixing pile equipment |
| CN114000501A (en) * | 2021-12-13 | 2022-02-01 | 上海强劲地基工程股份有限公司 | Construction method of large-diameter land four-axis mixing pile |
| CN114000501B (en) * | 2021-12-13 | 2023-01-17 | 上海强劲地基工程股份有限公司 | Construction method of large-diameter land four-axis mixing pile |
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