CN106089084A - A kind of super three axes agitating pile of pebble layer and stirring means thereof - Google Patents
A kind of super three axes agitating pile of pebble layer and stirring means thereof Download PDFInfo
- Publication number
- CN106089084A CN106089084A CN201610641828.4A CN201610641828A CN106089084A CN 106089084 A CN106089084 A CN 106089084A CN 201610641828 A CN201610641828 A CN 201610641828A CN 106089084 A CN106089084 A CN 106089084A
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- blade
- drilling rod
- drilling
- super
- pebble layer
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- 238000003756 stirring Methods 0.000 title claims description 14
- 238000005553 drilling Methods 0.000 claims abstract description 126
- 238000010276 construction Methods 0.000 claims abstract description 23
- 239000000956 alloy Substances 0.000 claims abstract description 13
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 13
- 230000015572 biosynthetic process Effects 0.000 abstract description 7
- 238000005755 formation reaction Methods 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000005299 abrasion Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- -1 silt Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
-
- 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
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to building pile foundation engineering construction field, particularly relate to a kind of super three axes agitating pile of pebble layer, including three drilling rods, it is fixed on the drill bit assembly bottom drilling rod and the blade assembly being connected on drilling rod, described drill bit assembly is connected with infinitely variable speeds unit head by drilling rod, described drilling rod is connected to pile frame by bearing support, described drill bit assembly includes the drill collar being connected on drilling rod, the drilling tool being connected on drill collar and hollow boring bit, and described drilling tool is fixed with 34 alloy cutter heads；Described blade assembly is the some groups of blades being connected on drilling rod, and described blade is sheet blade blade.The drill bit assembly of the present invention, by the rotating torque of drilling rod transmission unit head, creeps in the soil body, and its drilling ability is strong, drill tool wear is little, it is achieved that the three axes agitating pile efficient construction in the firm hard formations such as cobble；And construction technology work progress is pollution-free, place is neatly clean, and noise is little, it is not necessary to recycling mud, is a kind of green construction technique.
Description
Technical field
The invention belongs to building pile foundation engineering construction field, particularly relate to a kind of super three axes agitating pile of pebble layer and
Stirring means.
Background technology
Triaxial cement mixing pile is initially developed by Cheng Xing Co., Ltd. of Japan, and main purpose is to solve twin shaft cement
Soil mixing pile adjacent studs overlap joint is incomplete, become pile verticality to be relatively difficult to ensure the problems such as card.Shaped steel Soil-cement Wall (SMW engineering method) base
Pit enclosure structure has made the outstanding contribution of nearly 20 years in the application of China's building field.At present in China Shanghai, Jiangsu,
The application of the coastal soft clay area such as Zhejiang, Tianjin is the most commonplace, and is progressively generalized to the areas such as Fujian, Anhui, Hubei.Three axles
Cement mixing pile is suitable for the soil layers such as cohesive soil, silt, sand, gravel soil and saturated loess, but runs into and have cobble etc. hard
During soil layer, pile difficulty, traditional cement mixing method is just not suitable for using at this type of soil layer.For saving foundation pit enclosure cost,
The stagnant water effect giving full play to three axle cement mixing piles is good, and the features such as the construction period is short need to be researched and developed one and be suitable at heavily fortified points such as cobbles
The three axle cement mixing piles (super three axle cement mixing piles) of construction in hard formation, it is ensured that at boulder bed three axle cement mixing pile
Pile quality, to ensure the safety of deep pit construction.
Summary of the invention
The present invention is in order to overcome existing conventional art equipment pile-forming effect in the firm hard formations such as cobble poor, and stagnant water effect is not
The problem such as preferable, it is provided that a kind of super three axes agitating pile of pebble layer, drill bit by infinitely variable speeds unit head provide powerful
Rotating torque, creeps into the soil body, and its drilling ability is strong, drill tool wear is little, it is achieved that three axes agitating pile is in the firm hard formations such as cobble
Efficient construction.
Technical scheme: a kind of super three axes agitating pile of pebble layer, including three drilling rods, is fixed at the bottom of drilling rod
The drill bit assembly in portion and the blade assembly being connected on drilling rod, described drill bit assembly is by drilling rod with infinitely variable speeds unit head even
Connecing, described drilling rod is connected to pile frame by bearing support, and described drill bit assembly includes the drill collar being connected on drilling rod, is connected to drill collar
On drilling tool and hollow boring bit, described drilling tool is fixed with 3-4 alloy cutter head；Described blade assembly is to be connected on drilling rod
Some groups of blades, described blade is sheet blade blade.
The drill bit assembly of the present invention, by the rotating torque of drilling rod transmission unit head, creeps into, its drilling ability in the soil body
By force, drill tool wear is little, it is achieved that the three axes agitating pile efficient construction in the firm hard formations such as cobble.
Hollow boring bit is used bottom drill bit assembly；By reducing drill bit end cross-sectional, to reduce drill bit end resistance, thus
Strengthen the power of creeping into of drill bit end, improve drilling efficiency.
Drill bit assembly configuration high power unit head, and combine electrodeless variable-speed function, its bore forming speed is fast, efficiency of construction
Can double.
Using white-out zigzag drilling tool, each zigzag drilling tool, according to 3 ~ 4 alloy cutter heads of different welding of size, passes through
Change drill bit and bore tooth pattern, reasonable Arrangement alloy cutter head, to strengthen cutter head intensity, slow down bit wear.
Preferably, some groups of blades are equally spaced in the vertical direction of drilling rod, and often group blade includes that three are connected to
Blade on the same circumference of drilling rod, three blades are equally spaced on the circumferencial direction of drilling rod, the horizontal cloth of one of them blade
Putting and blade is downwardly inclined, one of them blade is upwardly disposed and blade is downwardly inclined, and last blade is arranged and cutter down
Sword is downwardly inclined.
Preferably, described blade is welded on drilling rod, and described drilling tool is welded on hollow boring bit, and described drilling rod leads to drill collar
Cross high-strength bolt to connect.
Preferably, described drilling tool is zigzag drilling tool, and described zigzag drilling tool outer end is inclined upwardly, described alloy cutter head
Quantity is 4, and two of which alloy cutter head is welded on the outer end of zigzag drilling tool.
Preferably, described drilling rod is provided with casing, and three drilling rods are connected to bearing support by casing, and described casing is positioned at
Between set below blade and drill collar.
The casing that is connected by between drilling rod and bracing frame is strengthened, to alleviate the abrasion of drilling rod；Removed by casing simultaneously
It is attached to the cement mortar on drilling rod and drill bit and cohesive soil, decreases the workload of artificial removal, improve efficiency of construction.But also
Slow down drilling rod abrasion in boulder bed, thus reduce the cobble abrasion to drilling rod and the replacement frequency of drilling rod.
The stirring means of the super three axes agitating pile of a kind of pebble layer, comprises the steps:
1) first it is transported to mixing pile need to fix on the pebble layer of construction, hollow boring bit alignment pebble layer；
2) opening infinitely variable speeds unit head, unit head drives drilling rod and drill bit assembly to rotate, and hollow boring bit and zigzag drilling tool bore
Turn up the soil and drive drilling rod entirety drill down behind face；
3) hollow boring bit and zigzag drilling tool descending during, zigzag drilling tool can at utmost by cobble evacuate open, promote
Drilling rod drill down；
4), during drilling rod is descending, sheet blade blade sufficiently stirs the cobble in stratum, it is to avoid blade is blocked by cobble；
5) after hollow boring bit arrives designated depth, stop descending, drill bit and drilling rod are regained from stratum.
Preferably, several length according to drilling rod of organizing of described drilling rod blade are adjusted.
Preferably, described infinitely variable speeds unit head is high power unit head.
Preferably, described zigzag drilling tool is white-out zigzag drilling tool.
Preferably, described drill bit assembly may be used for the boulder bed stratum of a diameter of 20-200mm.
The drill bit assembly of the present invention may be used for the boulder bed of diameter 20 ~ 200mm, and pile-forming effect is good, and stagnant water effect is relatively managed
Think.
The blade assembly form of the present invention is spirally changed into sheet blade blade, between increasing between blade by original
Gap.Sheet blade blade sufficiently can stir the cobble in stratum, it is to avoid the problem that blade is blocked by cobble and cannot construct,
And ensure that the pile quality of cement mixing pile.
Construction technology work progress of the present invention is pollution-free, and place is neatly clean, and noise is little, it is not necessary to recycling mud, is
A kind of green construction technique.
The invention has the beneficial effects as follows: for the Technology design of pebble layer super three axes agitating pile machine drill head, solve
Three axes agitating pile is the problem such as pile difficulty, stagnant water effect difference in the firm hard formations such as cobble；Three axes agitating pile can be given full play to
Stagnant water effect is good, the feature such as the construction period is short, increase a kind of feasible technical scheme for foundation pit enclosure design and construction；For
The technological progress of drill bit, effectively reduces the construction loss of drill bit, by improving drilling life of bit, reducing bit change-over number of times
Reach to improve machinery service efficiency, save the purpose of foundation pit enclosure cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the drill bit assembly of the present invention；
Fig. 3 is the structural representation of drill bit assembly in prior art；
Fig. 4 is the structural representation of the blade assembly of the present invention；
Fig. 5 is the structural representation of prior art Leaf assembly
1. hollow boring bit in figure, 2. zigzag drilling tool, 3. alloy cutter head, 4. drill collar, 5. high-strength bolt, 6. casing, 7.
Bearing support, 8. drilling rod, 9. blade, 10. drill bit assembly.
Detailed description of the invention
The present invention is further detailed explanation below in conjunction with the accompanying drawings, but is not the limit to scope
System.
As Figure 1-5, a kind of super three axes agitating pile of pebble layer, including three drilling rods 8, it is fixed on bottom drilling rod 8
Drill bit assembly 10 and the blade assembly that is connected on drilling rod 8.Drill bit assembly 10 is by drilling rod 8 with infinitely variable speeds unit head even
Connecing, drilling rod 8 is connected to pile frame by bearing support.Drill bit assembly 10 includes the drill collar 4 being connected on drilling rod 8, is connected on drill collar 4
Drilling tool and hollow boring bit 1.3-4 alloy cutter head 3 it is fixed with on drilling tool.Blade assembly is some groups be connected on drilling rod 8
Blade, blade 9 is sheet blade blade.Some groups of blades are equally spaced in the vertical direction of drilling rod 8, and often group blade includes three
The individual blade 9 being connected on the same circumference of drilling rod 8, three blades 9 are equally spaced on the circumferencial direction of drilling rod 8, Qi Zhongyi
Individual blade is horizontally disposed and blade is downwardly inclined, and one of them blade is upwardly disposed and blade is downwardly inclined, last blade
Arrange down and blade is downwardly inclined.Blade 9 is welded on drilling rod 8, and drilling tool is welded on hollow boring bit 1, drilling rod 8 and drill collar 4
Connected by high-strength bolt 5.Drilling tool is zigzag drilling tool 2, and zigzag drilling tool 2 outer end is inclined upwardly.The quantity of alloy cutter head 3 is
4, two of which alloy cutter head 3 is welded on the outer end of zigzag drilling tool 2.Drilling rod 8 is provided with casing 6, and three drilling rods 8 are by protecting
Cylinder 6 is connected to bearing support 7, and casing 6 is between bottom one group of blade and drill collar 4.
The stirring means of the super three axes agitating pile of a kind of pebble layer, comprises the steps:
1) first it is transported to mixing pile need to fix on the pebble layer of construction, hollow boring bit alignment pebble layer；
2) opening infinitely variable speeds unit head, unit head drives drilling rod and drill bit assembly to rotate, and hollow boring bit and zigzag drilling tool bore
Turn up the soil and drive drilling rod entirety drill down behind face；
3) hollow boring bit and zigzag drilling tool descending during, zigzag drilling tool can at utmost by cobble evacuate open, promote
Drilling rod drill down；
4), during drilling rod is descending, sheet blade blade sufficiently stirs the cobble in stratum, it is to avoid blade is blocked by cobble；
5) after hollow boring bit arrives designated depth, stop descending, drill bit and drilling rod are regained from stratum.
Several length according to drilling rod of organizing of drilling rod blade are adjusted.
Infinitely variable speeds unit head is high power unit head.
Zigzag drilling tool is white-out zigzag drilling tool.
Drill bit assembly may be used for the boulder bed stratum of a diameter of 20-200mm.
The present invention be directed to the Technology design of pebble layer super three axes agitating pile machine drill head, solve three axes agitating pile and exist
The problem such as pile difficulty, stagnant water effect difference in the firm hard formations such as cobble；The stagnant water effect that can give full play to three axes agitating pile is good,
The features such as the construction period is short, increase a kind of feasible technical scheme for foundation pit enclosure design and construction；Technology for drill bit is entered
Step, effectively reduces the construction loss of drill bit, and by improving drilling life of bit, minimizing bit change-over number of times reaches raising machine
Tool service efficiency, saves the purpose of foundation pit enclosure cost.
Claims (10)
1. the super three axes agitating pile of pebble layer, including three drilling rods, is fixed on the drill bit assembly bottom drilling rod and connection
Blade assembly on drilling rod, described drill bit assembly is connected with infinitely variable speeds unit head by drilling rod, and described drilling rod is by supporting
Frame is connected to pile frame, it is characterised in that: described drill bit assembly includes the drill collar being connected on drilling rod, the drilling tool being connected on drill collar
And hollow boring bit, described drilling tool is fixed with 3-4 alloy cutter head；Described blade assembly is the some groups of leaves being connected on drilling rod
Sheet, described blade is sheet blade blade.
A kind of super three axes agitating pile of pebble layer the most according to claim 1, it is characterised in that: between some groups of blades etc.
In the vertical direction being arranged in drilling rod, often group blade includes three blades being connected on the same circumference of drilling rod, three blades
Being equally spaced on the circumferencial direction of drilling rod, one of them blade is horizontally disposed and blade is downwardly inclined, one of them blade
Upwardly disposed and blade is downwardly inclined, and last blade is arranged down and blade is downwardly inclined.
A kind of super three axes agitating pile of pebble layer the most according to claim 2, it is characterised in that: described blade is welded on
On drilling rod, described drilling tool is welded on hollow boring bit, and described drilling rod is connected by high-strength bolt with drill collar.
A kind of super three axes agitating pile of pebble layer the most according to claim 1, it is characterised in that: described drilling tool is sawtooth
Shape drilling tool, described zigzag drilling tool outer end is inclined upwardly, and the quantity of described alloy cutter head is 4, and two of which alloy cutter head welds
It is connected on the outer end of zigzag drilling tool.
A kind of super three axes agitating pile of pebble layer the most according to claim 1, it is characterised in that: described drilling rod is provided with
Casing, three drilling rods are connected to bearing support by casing, and described casing is at bottom one group between blade and drill collar.
The stirring means of the super three axes agitating pile of a kind of pebble layer the most according to claim 1, it is characterised in that: its bag
Include following step:
1) first it is transported to mixing pile need to fix on the pebble layer of construction, hollow boring bit alignment pebble layer；
2) opening infinitely variable speeds unit head, unit head drives drilling rod and drill bit assembly to rotate, and hollow boring bit and zigzag drilling tool bore
Turn up the soil and drive drilling rod entirety drill down behind face；
3) hollow boring bit and zigzag drilling tool descending during, zigzag drilling tool can at utmost by cobble evacuate open, promote
Drilling rod drill down；
4), during drilling rod is descending, sheet blade blade sufficiently stirs the cobble in stratum, it is to avoid blade is blocked by cobble；
5) after hollow boring bit arrives designated depth, stop descending, drill bit and drilling rod are regained from stratum.
The stirring means of the super three axes agitating pile of a kind of pebble layer the most according to claim 6, it is characterised in that: described
Several length according to drilling rod of organizing of drilling rod blade are adjusted.
The stirring means of the super three axes agitating pile of a kind of pebble layer the most according to claim 6, it is characterised in that: described
Infinitely variable speeds unit head is high power unit head.
The stirring means of the super three axes agitating pile of a kind of pebble layer the most according to claim 6, it is characterised in that: described
Zigzag drilling tool is white-out zigzag drilling tool.
The stirring means of the super three axes agitating pile of a kind of pebble layer the most according to claim 6, it is characterised in that: institute
State drill bit assembly and may be used for the boulder bed stratum of a diameter of 20-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641828.4A CN106089084A (en) | 2016-08-08 | 2016-08-08 | A kind of super three axes agitating pile of pebble layer and stirring means thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610641828.4A CN106089084A (en) | 2016-08-08 | 2016-08-08 | A kind of super three axes agitating pile of pebble layer and stirring means thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089084A true CN106089084A (en) | 2016-11-09 |
Family
ID=57455488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610641828.4A Pending CN106089084A (en) | 2016-08-08 | 2016-08-08 | A kind of super three axes agitating pile of pebble layer and stirring means thereof |
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| Country | Link |
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| CN (1) | CN106089084A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277799A (en) * | 2017-12-29 | 2018-07-13 | 上海建工二建集团有限公司 | Obstacle-clearing pile-forming integrated stirring pile machine and construction method thereof |
| CN110004924A (en) * | 2019-05-10 | 2019-07-12 | 北京中岩大地科技股份有限公司 | A kind of Double shaft stirring drill bit with elimination soil body cementation |
| CN110029664A (en) * | 2019-05-10 | 2019-07-19 | 北京中岩大地科技股份有限公司 | It is a kind of to stir drill bit with the single shaft for eliminating soil body cementation |
| CN113530433A (en) * | 2021-07-17 | 2021-10-22 | 无锡市政建设集团有限公司 | Triaxial reducing stirring drill rod |
| CN114319304A (en) * | 2021-12-06 | 2022-04-12 | 北京建工四建工程建设有限公司 | Cement fly ash gravel pile combined column hammer impact pile expanding structure and construction method |
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| CN202767083U (en) * | 2012-07-31 | 2013-03-06 | 广东省基础工程公司 | Multi-head deep layer stirring device |
| CN203463016U (en) * | 2013-08-23 | 2014-03-05 | 中国建筑一局(集团)有限公司 | Three-axle agitator drill suitable for piercing gravel layer soil |
| CN104420462A (en) * | 2013-08-22 | 2015-03-18 | 浙江绩丰岩土技术股份有限公司 | Super three-axis cement mixing pile device |
| CN105220685A (en) * | 2015-09-29 | 2016-01-06 | 中冶集团武汉勘察研究院有限公司 | The deep-mixing pile driver construction method of drilling tool and application drilling tool |
| CN205840781U (en) * | 2016-08-08 | 2016-12-28 | 浙江绩丰岩土技术股份有限公司 | A kind of super three axes agitating pile of pebble layer |
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2016
- 2016-08-08 CN CN201610641828.4A patent/CN106089084A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202767083U (en) * | 2012-07-31 | 2013-03-06 | 广东省基础工程公司 | Multi-head deep layer stirring device |
| CN104420462A (en) * | 2013-08-22 | 2015-03-18 | 浙江绩丰岩土技术股份有限公司 | Super three-axis cement mixing pile device |
| CN203463016U (en) * | 2013-08-23 | 2014-03-05 | 中国建筑一局(集团)有限公司 | Three-axle agitator drill suitable for piercing gravel layer soil |
| CN105220685A (en) * | 2015-09-29 | 2016-01-06 | 中冶集团武汉勘察研究院有限公司 | The deep-mixing pile driver construction method of drilling tool and application drilling tool |
| CN205840781U (en) * | 2016-08-08 | 2016-12-28 | 浙江绩丰岩土技术股份有限公司 | A kind of super three axes agitating pile of pebble layer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108277799A (en) * | 2017-12-29 | 2018-07-13 | 上海建工二建集团有限公司 | Obstacle-clearing pile-forming integrated stirring pile machine and construction method thereof |
| CN110004924A (en) * | 2019-05-10 | 2019-07-12 | 北京中岩大地科技股份有限公司 | A kind of Double shaft stirring drill bit with elimination soil body cementation |
| CN110029664A (en) * | 2019-05-10 | 2019-07-19 | 北京中岩大地科技股份有限公司 | It is a kind of to stir drill bit with the single shaft for eliminating soil body cementation |
| CN110004924B (en) * | 2019-05-10 | 2023-12-12 | 北京中岩大地科技股份有限公司 | Double-shaft stirring drill bit with soil body adhesion elimination function |
| CN113530433A (en) * | 2021-07-17 | 2021-10-22 | 无锡市政建设集团有限公司 | Triaxial reducing stirring drill rod |
| CN113530433B (en) * | 2021-07-17 | 2024-02-20 | 无锡市政建设集团有限公司 | Triaxial reducing stirring drill rod |
| CN114319304A (en) * | 2021-12-06 | 2022-04-12 | 北京建工四建工程建设有限公司 | Cement fly ash gravel pile combined column hammer impact pile expanding structure and construction method |
| CN114319304B (en) * | 2021-12-06 | 2023-09-22 | 北京建工四建工程建设有限公司 | Pile-punching and expanding structure of cement fly ash gravel pile combined column hammer and construction method |
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Application publication date: 20161109 |
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