CN118462058A - Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling - Google Patents
Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling Download PDFInfo
- Publication number
- CN118462058A CN118462058A CN202410519679.9A CN202410519679A CN118462058A CN 118462058 A CN118462058 A CN 118462058A CN 202410519679 A CN202410519679 A CN 202410519679A CN 118462058 A CN118462058 A CN 118462058A
- Authority
- CN
- China
- Prior art keywords
- drilling
- drill bit
- air
- rod body
- drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 60
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000000956 alloy Substances 0.000 claims description 17
- 229910045601 alloy Inorganic materials 0.000 claims description 17
- 239000004567 concrete Substances 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 6
- 230000036346 tooth eruption Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 8
- 239000002689 soil Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000003437 trachea Anatomy 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
- 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
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
-
- 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
- E21B17/006—Accessories for drilling pipes, e.g. cleaners
-
- 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
- E21B17/22—Rods or pipes with helical structure
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention belongs to the technical field of drilling and grouting pile construction application, and particularly relates to a method for constructing a long spiral drilling and grouting pile by adopting a rock-embedded drill bit matched with an air-entrapping type. The invention relates to a long spiral drill rod, which comprises a drill rod body and a drill bit arranged at the bottom of the drill rod body, wherein a spiral blade is arranged on the drill rod body, and a high-pressure air pipe is arranged in the drill rod body; through the setting of high pressure shower nozzle, send the drill bit bottom with the high pressure gas in the air compressor, utilize the air isolation principle to keep apart drilling rod and pore wall to solve and paste the problem that the drill is not advanced, the drilling rod is locked.
Description
Technical Field
The invention belongs to the technical field of drilling and grouting pile construction application, and particularly relates to a method for constructing a long spiral drilling and grouting pile by adopting a rock-embedded drill bit matched with an air-entrapping type.
Background
The long spiral drilling and grouting pile is one kind of reinforced concrete filling pile, and is formed through drilling with long spiral drilling machine to designed depth and pumping concrete into pile hole with concrete pump while raising the drilling machine. After the concrete is poured to the set elevation, the reinforcement cage is inserted into the concrete to the designed elevation by means of special vibrating equipment.
At present, the long spiral drilling press-grouting pile is mainly applied to clay, silt, filling soil and other soil, and can be used for pile forming under complex geological conditions such as shrinkage soft soil, flowing sand layer, sand pebble layer, groundwater and the like. However, in actual operation, aiming at the formation conditions of argillaceous siltstone, fully weathered basalt, strong weathered basalt and the like, long-time rock entering drilling is performed, the drill bit of a long auger is seriously worn, the drilling efficiency is affected, and the combined drill bit needs to be checked and replaced in time; and in the drilling process of the long spiral drilling machine, the vent pipe additionally arranged on the drill rod is easy to cause the blockage or rupture of the vent pipe due to the extrusion of hard matters such as slurry stones and gravels, so that the bottom air supply pressure of the drill rod is influenced, the isolation effect of the drilling tool and the hole wall is reduced, and meanwhile, the long spiral drilling machine and the drill rod are extremely easy to be locked due to the fact that the viscosity of the argillaceous sandstone is large, and the construction efficiency is further influenced.
Disclosure of Invention
Aiming at the technical problems of construction under the stratum conditions of argillaceous siltstone, fully weathered basalt, strong weathered basalt and the like in the existing long spiral drilling pressure grouting pile construction, the invention provides the construction method for the long spiral drilling pressure grouting pile by adopting the rock-embedded drill bit matched with the air-entraining type long spiral drilling pressure grouting pile, which has the advantages of simplicity, convenience in operation, capability of effectively improving the construction efficiency and avoiding the problems of sticking a drill rod and locking a drill rod.
In order to achieve the above purpose, the invention adopts the following technical scheme: the invention provides a construction method for a pressure grouting pile by adopting a rock-embedded drill bit to cooperate with an aerated long spiral drilling hole, which comprises a long spiral drill rod, wherein the long spiral drill rod comprises a drill rod body and a drill bit arranged at the bottom of the drill rod body, spiral blades are arranged on the drill rod body, a high-pressure air pipe is arranged in the drill rod body, the drill bit comprises a cylindrical part and a conical part which are arranged from top to bottom, broken blades are arranged on the side wall of the drill bit, the broken blades are arranged in a triangular shape, the broken blades are uniformly distributed on the side wall of the drill bit, hard alloy cutting picks are further arranged between the broken blades, the hard alloy cutting picks are obliquely downwards arranged on the cylindrical part, the hard alloy cutting picks are arranged near the conical part, a high-pressure spray head is arranged at the bottom of the drill rod body and is communicated with the high-pressure air pipe, the high-pressure spray head is uniformly distributed on the side wall of the drill rod body, the high-pressure spray head is obliquely downwards arranged in an inclined direction different from the rotating direction of the drill rod body, an auxiliary spray head is further arranged below the spiral blade at the lowest layer of the drill rod body, and the auxiliary spray head is arranged towards the lowest spiral blade, and the construction method is characterized in that:
a. firstly, positioning pile positions, leveling a site near the pile positions, and placing and installing a pile casing;
b. then, aligning the long spiral drill rod with the pile position to position and start drilling;
c. After the drilling depth exceeds 1m, starting an air pump to supply air to the high-pressure air pipe;
d. Stopping drilling after the drilling reaches a designated depth, lifting the long spiral drill rod to 20cm in height, and starting pumping concrete, wherein the high-pressure air cylinder continuously supplies air during the period;
e. According to the pumping speed and the aperture, determining the lifting speed of the long spiral drill rod, and realizing the lifting of the long spiral drill rod while pumping;
f. And stopping pumping after the height of the steel bar cage is pumped to be more than 1m of the designed pile top height, inserting the steel bar cage into the hole to a specified position, and obtaining the required grouting pile after the concrete is cooled.
Preferably, an auxiliary cutting pick is further arranged on the side wall of the drill bit, the auxiliary cutting pick is arranged close to the bottom of the conical part, and the auxiliary cutting pick is arranged between two adjacent crushing blades.
Preferably, alloy teeth are further arranged on the end walls of the crushing blades, and the alloy teeth are uniformly distributed on the crushing blades.
Preferably, a scraper knife is fixed at the bottom of the helical blade, and the scraper knife is arranged along the rotation direction of the helical blade.
Preferably, the lower part of the drill rod body is further provided with a crushing pick, and the crushing pick is arranged on one side of the shovel blade.
Preferably, the crushing cutting teeth are arranged at intervals at the lower part of the drill rod body.
Preferably, the length of the crushing pick increases gradually from the rotational direction of the drill rod body.
Compared with the prior art, the invention has the advantages and positive effects that:
The invention provides a construction method for pressing and grouting piles by adopting a rock-embedding drill bit and matching with an air-entraining long spiral drilling hole, which improves the structure of the existing long spiral drilling rod, and utilizes the fact that hard alloy cutting picks are embedded on the drill bit so as to fully utilize the rock-embedding capability of the hard alloy cutting picks, achieve the rock-entering effect and improve the drilling efficiency; through the setting of high pressure shower nozzle, send the drill bit bottom with the high pressure gas in the air compressor, utilize the air isolation principle to keep apart drilling rod and pore wall to solve and paste the problem that the drill is not advanced, the drilling rod is locked.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic view of the construction of the long auger stem provided in example 1;
FIG. 2 is a schematic view of a portion of the structure of FIG. 1;
In the drawings, 1, a drill rod body; 11. a helical blade; 12. a shovel blade; 13. a high pressure nozzle; 14. an auxiliary spray head; 15. crushing cutting pick; 2. a drill bit; 21. crushing the blades; 22. cemented carbide cutting pick; 23. an auxiliary cutting pick; 24. alloy teeth.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
Embodiment 1, as shown in fig. 1 and 2, the present embodiment aims to provide a construction method for grouting piles by adopting a rock-socketed drill bit 2 in combination with an air-entrained long spiral drilling, so as to solve the problems of no penetration of a paste drill and locking of a drill rod. Considering the problems that occur, it is mainly the structure of the drill rod that is not matched to the soil, for which purpose, in the present embodiment, a long auger stem is specifically provided.
Like the existing long auger stem, the long auger stem provided in this embodiment also includes a stem body 1 and a drill bit 2 disposed at the bottom of the stem body 1, a helical blade 11 is disposed on the stem body 1, and a high-pressure air pipe is disposed in the stem body 1, and the above structure is an existing common structure, so in this embodiment, detailed description is omitted.
Considering the formation conditions such as argillaceous siltstone, fully weathered basalt, strong weathered basalt, etc., in this embodiment, the problem that can't advance to bore is avoided by adopting the mode of central breakthrough, supplementary shoveling around, for this reason, in this embodiment, the drill bit 2 that provides includes cylinder portion and the cone portion that set up from top to bottom, be provided with broken blade on the lateral wall of drill bit 2, broken blade 21 is the triangle platy setting, broken blade 21 evenly distributed is on the lateral wall of drill bit 2, in this embodiment, broken blade 21 is provided with four altogether, the contained angle is 90 between the adjacent broken blade 21, and triangle-shaped's setting, then increase the broken area around in order to keep the drill bit 2 bottom sharp.
Considering that the crushing blades 21 are arranged in a plate shape, although the apex angles of the crushing blades are protruded outside, the crushing blades can play a role, but the apex angles of the crushing blades are easily worn along with continuous friction, so that the drilling speed is influenced, and therefore, the hard alloy cutting teeth 22 are also arranged between the crushing blades 21, the hard alloy cutting teeth 22 are obliquely downwards arranged on the cylindrical part, the hard alloy cutting teeth 22 are arranged close to the conical part, the end parts of the hard alloy cutting teeth 22 are close to the apex angles of the crushing blades 21, the crushing blades 21 are used for crushing rock bodies in advance, and the resistance born by the crushing blades is reduced, so that the service life is prolonged.
In order to avoid the occurrence of sticking with the drill, be provided with high-pressure shower nozzle 13 in the bottom of drilling rod body 1, high-pressure shower nozzle 13 and high-pressure trachea intercommunication set up, high-pressure shower nozzle 13 evenly distributed is on the lateral wall of drilling rod body 1, high-pressure shower nozzle 13 slope sets up downwards, the inclination of high-pressure shower nozzle 13 and the rotation direction of drilling rod body 1 set up differently, like this, it blows off the mud that rotates, thereby protect drill bit 2, simultaneously, still be provided with auxiliary shower nozzle 14 in the below of drilling rod body 1 lowermost helical blade 11, auxiliary shower nozzle 14 sets up towards lowermost helical blade 11, because helical blade 11 is the heliciform and distributes, for this reason, auxiliary shower nozzle 14 also is the heliciform setting, because auxiliary shower nozzle 14 sprays towards helical blade 11, in this way, helical blade 11 just forms one deck direction strong, the hindrance of rethread pore wall, it can spray downwards, and the in-down in-process can form one deck and high-pressure shower nozzle 13 matched with gas wall, the below that obstructs helical blade 11, and then reduce the possibility of dying, simultaneously, also be favorable to the quick entering into helical blade 11 to accomplish to the screw blade's the top of entering into, the screw blade 11, the screw conveying is accomplished.
Considering that the bottom of the drill bit 2 is mainly broken by the sharp of the drill bit 2 itself, the damage to the drill bit 2 body is larger, and for this reason, in this embodiment, an auxiliary pick 23 is further provided on the side wall of the drill bit 2, the auxiliary pick 23 is provided near the bottom of the conical portion, and the auxiliary pick 23 is provided between two adjacent breaking blades 21. Thus, in the process of rotating the long spiral drill rod, the auxiliary cutting pick 23 breaks rocks in a small range at the bottom of the drill bit 2, so that breaking difficulty is reduced, and meanwhile, the rocks are broken more conveniently.
In order to further improve the crushing effect, in this embodiment, alloy teeth 24 are further provided on the end walls of the crushing blades 21, and the alloy teeth 24 are uniformly distributed on the crushing blades 21. Thus, the alloy teeth 24 are embedded, so that not only a finer crushing effect can be achieved, but also the crushing blade 21 can be better protected.
In order to secure entry of the helical blade 11 for an increase in the diameter of the drill hole, a blade 11 is fixed to the bottom of the helical blade 11, and the blade 11 is provided along the rotation direction of the helical blade 11. In this way, the peripheral side wall of the drill bit 2 is scraped off by the provision of the blade 11, thereby increasing the area of the hole and ensuring the entry of the helical blade 11.
Considering that the blade 11 is supported by means of the helical blade 11, its collision capacity is somewhat weak, for which purpose a crushing pick 15 is also provided in the lower part of the drill rod body 1, the crushing pick 15 being provided on one side of the blade 11. The crushing picks 15 are arranged at intervals at the lower part of the drill rod body 1. The length of the crushing pick 15 increases gradually from the rotational direction of the drill rod body 1. Thus, the diameter of the blade 11 can be easily enlarged by crushing the crushing pick 15.
In the concrete implementation, firstly, positioning pile positions, leveling the sites nearby the pile positions, and placing and installing pile casings; then, aligning the long spiral drill rod with the pile position to position and start drilling; after the depth of the drilled hole exceeds 1m, an air pump is started to supply air to the high-pressure air pipe, and the main reason for starting air supply after the drilling hole is deeper than 1m is that the problems of sticking and blocking of the soil layer in the earlier stage cannot occur, and the drilling hole can be quickly unscrewed.
After the drilling reaches the designated depth, stopping drilling, lifting the long spiral drill rod to 20cm in height, and then starting pumping concrete, wherein the high-pressure air cylinder continuously supplies air during the period, and the reason for supplying air at the moment is to prevent soil from falling off, so that the consistency of the concrete is ensured.
And then, determining the lifting speed of the long spiral drill rod according to the pumping speed and the aperture, pumping the long spiral drill rod while lifting the long spiral drill rod, stopping pumping after the long spiral drill rod is pumped to a height of more than 1m of the designed pile top, inserting a reinforcement cage into the hole to a designated position, and obtaining the required pressure grouting pile after the concrete is cooled.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides an adopt long auger boring pressure filling stake construction method of embedded rock drill bit cooperation air entrainment, includes long auger stem, long auger stem includes the drilling rod body and sets up the drill bit in drilling rod body bottom, be provided with helical blade on the drilling rod body, be provided with high-pressure air pipe in the drilling rod body, a serial communication port, the drill bit includes cylinder portion and the circular cone portion that sets up from last decurrent, be provided with broken blade on the lateral wall of drill bit, broken blade is the triangle-shaped setting, broken blade evenly distributed is on the lateral wall of drill bit, still be provided with the carbide pick between the broken blade, carbide pick slope sets up downwards on the cylinder portion, carbide pick is close to the circular cone portion setting, the bottom of drilling rod body is provided with high-pressure shower nozzle, high-pressure shower nozzle and high-pressure air pipe intercommunication set up, high-pressure shower nozzle evenly distributed is on the lateral wall of drilling rod body, high-pressure shower nozzle slope sets up downwards, the inclination and the direction of drilling rod body are different, the below of the lower-most helical blade of body still is provided with auxiliary shower nozzle, auxiliary shower nozzle sets up for its method towards the lower side of being under construction.
A. firstly, positioning pile positions, leveling a site near the pile positions, and placing and installing a pile casing;
b. then, aligning the long spiral drill rod with the pile position to position and start drilling;
c. After the drilling depth exceeds 1m, starting an air pump to supply air to the high-pressure air pipe;
d. stopping drilling after the drilling reaches the designated depth, lifting the long spiral drill rod to 20cm,
Starting to pump concrete, and continuously supplying air by a high-pressure air cylinder during the period;
e. According to the pumping speed and the aperture, determining the lifting speed of the long spiral drill rod, and realizing the lifting of the long spiral drill rod while pumping;
f. And stopping pumping after the height of the steel bar cage is pumped to be more than 1m of the designed pile top height, inserting the steel bar cage into the hole to a specified position, and obtaining the required grouting pile after the concrete is cooled.
2. The construction method for the long auger drilling grouting pile by matching the rock-socketed drill bit with the air-entrained long auger drilling grouting pile according to claim 1, wherein an auxiliary cutting pick is further arranged on the side wall of the drill bit, the auxiliary cutting pick is arranged close to the bottom of the conical part, and the auxiliary cutting pick is arranged between two adjacent crushing blades.
3. The construction method for the long spiral drilling pressure grouting pile by adopting the rock-socketed drill bit in combination with the air entraining mode according to claim 2, wherein alloy teeth are further arranged on the end walls of the crushing blades, and the alloy teeth are uniformly distributed on the crushing blades.
4. The construction method for the pressurized grouting pile by adopting the rock-socketed drill bit and the air-entrapping long spiral drilling according to claim 2, wherein a shovel blade is fixed at the bottom of the spiral blade, and the shovel blade is arranged along the rotation direction of the spiral blade.
5. The construction method for the air-entrained long auger drilling pressure grouting pile by adopting the rock-socketed drill bit according to claim 3, wherein the lower part of the drill rod body is further provided with a crushing pick, and the crushing pick is arranged at one side of a shovel blade.
6. The construction method for the long auger drilling and grouting pile by adopting the cooperation of the rock-socketed drill bit and the air entraining device according to claim 5, wherein the crushing cutting teeth are arranged at intervals at the lower part of the drill rod body.
7. The construction method for compression grouting piles using rock drill bits in combination with air entraining long auger holes of claim 6, wherein the length of the crushing pick is gradually increased from the rotation direction of the drill rod body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410519679.9A CN118462058A (en) | 2024-04-28 | 2024-04-28 | Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410519679.9A CN118462058A (en) | 2024-04-28 | 2024-04-28 | Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118462058A true CN118462058A (en) | 2024-08-09 |
Family
ID=92167438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410519679.9A Pending CN118462058A (en) | 2024-04-28 | 2024-04-28 | Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118462058A (en) |
-
2024
- 2024-04-28 CN CN202410519679.9A patent/CN118462058A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7198434B2 (en) | Full-displacement pressure grouted pile system and method | |
| US5219246A (en) | Drills for piles and soil stabilization, and drilling method | |
| CN101962949B (en) | Long spiral double-pipe high-pressure stir-jet grouting pile construction method and device | |
| CN1995685B (en) | Pile forming mechanism with high-pressure-jet gyro bit and pile forming method | |
| CN101429766B (en) | Ground strengthened high pressure rotary spraying pile construction technique | |
| CN101413245B (en) | Concrete foundation plate base de-empty processing method and processing device | |
| CN203452083U (en) | Rotary expanding pile construction equipment and grout feeding device | |
| CN1126264A (en) | Making method for non-annular borehole cast-in-place pile | |
| CN105256795B (en) | Hold type thread core built pile and its construction equipment and construction method in a kind of end | |
| CN1236146C (en) | Method and apparatus for forming shaped pile by drilling, high-pressure letting to enlarge hole and pressure pouring of concrete | |
| CN113174943A (en) | Rotary drilling type sand pumping pore-forming side wall high-pressure grouting device and construction method | |
| CN111501781A (en) | Supporting method and structure combining consolidation grouting of hybrid filling ultra-deep foundation pit with double rows of steel pipe piles | |
| CN107503683A (en) | The embedding lithotype rig gantry type drill bit device of long spire | |
| CN113431490A (en) | Large-diameter tubular pile construction equipment and method for karst area | |
| CN206396745U (en) | Long spire stake machine with the Counterboring apparatus that spins | |
| KR20100122068A (en) | Grouting method using enlarged concrete consolidation grouting apparatus | |
| CN104846820B (en) | Hold type screw-type Squeezing Soil Pile pile-forming equipment and bore forming method in a kind of end | |
| CN201649093U (en) | Long spiral dual-pipe high-pressure stirring-spraying pile construction device | |
| CN106481277A (en) | High pressure base expanding and base expanding screw rod drilling equipment and its stake end enlarged footing | |
| CN113969581A (en) | Construction method for rock-entering pile planting | |
| CN110924385B (en) | High-pressure jet grouting pile construction process | |
| CN118462058A (en) | Construction method for filling pile by adopting rock-embedded drill bit and air-entrained long spiral drilling | |
| CN211524698U (en) | Numerical control spiral drilling machine | |
| KR101057481B1 (en) | Basic reinforcement expansion consolidation drawing method using basic reinforcement expansion consolidation drawing device | |
| CN114837166A (en) | Construction method of pile foundation for complex terrain geology in mountainous area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |