CN113463641B - High-pressure grouting device and control method - Google Patents
High-pressure grouting device and control method Download PDFInfo
- Publication number
- CN113463641B CN113463641B CN202110780624.XA CN202110780624A CN113463641B CN 113463641 B CN113463641 B CN 113463641B CN 202110780624 A CN202110780624 A CN 202110780624A CN 113463641 B CN113463641 B CN 113463641B
- Authority
- CN
- China
- Prior art keywords
- pipe
- grouting
- pressure
- drill
- worm
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002002 slurry Substances 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims description 24
- 238000005056 compaction Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 5
- 230000002146 bilateral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000004568 cement Substances 0.000 description 5
- 230000009977 dual effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
- E21B33/138—Plastering the borehole wall; Injecting into the formation
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Fluid Mechanics (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention relates to a high-pressure grouting device and a control method, wherein the high-pressure grouting device comprises a grouting pipe, a drill pipe, a traction device, a drill bit and a worm and gear linkage system; the grouting pipe is arranged inside the drill pipe and is coaxial with the drill pipe; the upper ends of the grouting pipe and the drilling pipe are electrically connected with the traction device; the lower end of the grouting pipe is used for being connected with the worm and gear linkage system; the lower end of the drill pipe is used for connecting the drill bit. When the high-pressure grouting device is in a rotary jetting state, the drilling can be carried out through the closed drill bit without special hole guiding equipment, the opening and closing state of the drill bit is changed as required after the high-pressure grouting device reaches a specified depth, slurry with different pressures is injected for grouting or rotary jetting operation, construction facilities and processes are simplified, and time and cost are saved; the method can be used for quickly implementing the treatment method of firstly grouting and compacting the hole bottom and then carrying out rotary spraying and reinforcing the hole wall in one hole discharging operation, and the foundation treatment effect is greatly improved.
Description
Technical Field
The invention relates to the field of geotechnical engineering foundation treatment, in particular to a high-pressure grouting device and a control method.
Background
The high-pressure jet grouting technology is characterized in that high-pressure jet flow formed by high-pressure slurry is utilized to cut stratum soil bodies in a rotating impact mode, soil body particles are mixed with cement slurry and are coagulated, and reinforced cement soil is formed to improve the seepage prevention or bearing capacity of a foundation. Because the process is simple and the cost is reasonable, the method is widely applied to foundation treatment and hole wall reinforcement construction under complex geological conditions at present.
The compaction grouting technology is characterized in that thick slurry is poured into foundation soil through a drill hole, soil bodies around the soil bodies are compacted to form slurry bubbles at a slurry outlet section, the soil bodies are extruded along with the increase of the pore water pressure of the soil layers until shear cracks appear, and the slurry fills the cracks to form slurry veins, so that a new reticular framework structure is formed in the soil bodies. The effect of improving the bearing capacity of the pile bottom can be achieved by using less slurry.
Both of the above two techniques require formation of high pressure cement slurry in the drill pipe and rotary jetting or grouting near the drill bit. However, in the current actual construction operation, the large-scale construction equipment required by the two is different, and a special high-pressure rotary jetting machine and a compaction grouting machine are respectively used, so that the use, alternation and maintenance cost of the equipment are increased for project engineering simultaneously comprising high-pressure rotary jetting reinforcement and compaction grouting; in addition, the hole wall or the hole bottom can only be reinforced by using a certain device, and for holes needing to be reinforced in a bearing layer and a side wall in a weak soil area, the two traditional technologies cannot be completed under the condition of one hole drilling operation, so that only one reinforcing method can be selected in a plurality of projects, and the construction efficiency and the quality of pile holes are influenced.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a high-pressure grouting device and method, which can not only cut a soil body by high-pressure rotary jet and mix the soil body in a rotating way by a drilling tool to reinforce the periphery of a pile, but also discharge high-pressure slurry through a bottom hole to carry out compaction grouting, can sequentially complete the engineering tasks of hole digging, compaction and reinforcement and rotary jet reinforcement in one next hole operation, greatly improves the construction efficiency, and provides an optimized scheme for foundation treatment.
The above technical object of the present invention will be achieved by the following technical solutions.
A high-pressure grouting device comprises a grouting pipe, a drill pipe, a traction device, a drill bit and a worm and gear linkage system;
the grouting pipe is arranged inside the drill pipe and is coaxial with the drill pipe;
the upper ends of the grouting pipe and the drilling pipe are connected with the traction device;
the lower end of the grouting pipe is used for being connected with the worm and gear linkage system;
the lower end of the drill pipe is used for connecting the drill bit.
The above aspect and any possible implementation manner further provide an implementation manner, wherein an inner cavity is formed in the grouting pipe, an outer cavity is formed between the grouting pipe and the drill pipe, and the grouting pipe and the drill pipe rotate relatively and independently under the control of the traction device.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the worm and gear linkage system includes a worm gear and two worms, and the two worms are symmetrically arranged on two sides of the worm gear.
The above aspect and any possible implementation manner further provide an implementation manner, further comprising a rotary spraying device arranged on the middle circumference of the grouting pipe.
The above aspects and any possible implementations further provide an implementation in which the lower end of the grout pipe is connected to the worm wheel of the worm and gear linkage system by a rivet joint.
The above aspect and any possible implementation manner further provide an implementation manner, where the two drill bits are symmetrically arranged on two sides of the drill pipe, and inner walls of the two drill bits are attached to an outer wall of the grouting pipe.
The above aspect and any possible implementation manner further provide an implementation manner, wherein two worms are respectively connected with two drill bits which are arranged in bilateral symmetry.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the rotary spraying device includes two inner nozzles symmetrically arranged in the circumferential direction, a guniting channel formed by extending the two inner nozzles between the grouting pipe and the drill pipe, and an outer nozzle formed by intersecting the guniting channel and the pipe wall of the drill pipe.
The above aspect and any possible implementation manner further provide an implementation manner, wherein the rotary spraying device further comprises sealing plugs which are arranged on the inner wall of the drill pipe and are symmetrical to each other at a certain angle with the outer nozzle on the circumference.
The invention also provides a control method of the high-pressure grouting device, which comprises the following steps: the high-pressure grouting device is in a first position, wherein the left drill bit and the right drill bit are in a closed state, the rotary jetting device of the high-pressure grouting device is in a communicated state, and the high-pressure grouting device performs drilling or high-pressure rotary jetting operation;
after the high-pressure grouting device is applied with torque, the rotary spraying device is in an off state, meanwhile, a worm wheel of the worm wheel and worm linkage system is twisted to rotate, the worm wheels of the worm wheel and worm linkage system are driven to rotate at two sides, the left drill bit and the right drill bit are further driven to be in an open state from a closed state, the high-pressure grouting device is in a second position and carries out compaction grouting operation, and the first position is different from the second position.
The above aspects and any possible implementation manners further provide an implementation manner, where the first position is a first working condition of the device for construction work, that is, the left and right drill bits are required to be closed, the rotary jetting device is in a communicated state, and the high-pressure grouting device performs drilling or high-pressure rotary jetting work; the second position is the second working condition of the device for construction operation, namely the rotary spraying device is required to be in an off state under the action of torque, meanwhile, the worm wheel is driven to rotate by the torque to drive the worms on two sides to rotate, the left drill bit and the right drill bit are further driven to be in an open state from a closed state, and the high-pressure grouting device performs compaction grouting operation.
The invention has the beneficial technical effects
The embodiment of the invention provides a high-pressure grouting device and a control method, wherein the high-pressure grouting device comprises a grouting pipe, a drill pipe, a traction device, a drill bit and a worm and gear linkage system; the grouting pipe is arranged inside the drill pipe and is coaxial with the drill pipe; the upper ends of the grouting pipe and the drilling pipe are electrically connected with the traction device; the lower end of the grouting pipe is used for being connected with the worm and gear linkage system; the lower end of the drill pipe is used for connecting the drill bit. When the high-pressure grouting device is in a rotary jetting state, the drilling can be carried out through the closed drill bit without special hole guiding equipment, the opening and closing state of the drill bit is changed as required after the high-pressure grouting device reaches a specified depth, slurry with different pressures is injected for grouting or rotary jetting operation, construction facilities and processes are simplified, and time and cost are saved; the method can be used for quickly implementing the treatment method of firstly grouting and compacting the hole bottom and then carrying out rotary spraying and reinforcing the hole wall in one hole discharging operation, and the foundation treatment effect is greatly improved.
Drawings
Embodiments of the invention are described in detail below with reference to the attached drawing figures, wherein:
FIG. 1 is a schematic structural view of a high pressure grouting apparatus according to an embodiment of the present invention, in which a drill bit is closed and in a jet grouting or drilling state;
fig. 2 is another schematic view of the high-pressure grouting apparatus according to the embodiment of the present invention, in which the drill bit is opened and the compaction grouting state is performed.
In the figure: 1. a grouting pipe; 2. drilling a pipe; 3. an inner cavity; 4. an outer spout; 5. an inner nozzle; 6. a guniting channel; 7. a sealing plug; 8. riveting a joint; 9. a worm gear; 10. a worm; 11. fixing a worm shaft; 12. a drill bit; 13. a motor; 14. a turning worm gear.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description is made with reference to the accompanying drawings and specific examples, but the embodiments of the present invention are not limited thereto.
A high-pressure grouting device comprises a grouting pipe, a drill pipe, a traction device, a drill bit and a worm and gear linkage system;
the grouting pipe is arranged inside the drill pipe and is coaxial with the drill pipe;
the upper ends of the grouting pipe and the drilling pipe are connected with the traction device;
the lower end of the grouting pipe is used for being connected with the worm and gear linkage system;
the lower end of the drill pipe is used for connecting the drill bit.
As shown in fig. 1-2, the high-pressure grouting device of the invention comprises a grouting pipe 1, a drill pipe 2, a motor 13, a drill bit 12, a worm wheel 9, two worms 10 and a rotary spraying device;
the grouting pipe 1 is arranged inside the drill pipe 2, is coaxial with the drill pipe 2, and is used for containing high-pressure slurry and spraying the high-pressure slurry out through an inner nozzle and an outer nozzle of a rotary spraying device; the upper ends of the grouting pipe 1 and the drill pipe 2 are electrically connected with the traction device, and the traction device is a rotary motor 13; the lower end of the outer wall of the grouting pipe 1 is connected with the worm wheel 9, and the motor 13 applies torque to rotate the grouting pipe 1 so as to drive the worm wheel 9 to rotate; the drill pipe 2 takes a motor 13 as a traction device, and the drill pipe 2 is rotated by applying torque under the driving of the motor 13; the lower end of the drill pipe 2 is connected with the drill bit 12; the worms 10 are symmetrically arranged on two sides of the worm wheel 9; the rotary spraying device is arranged on the grouting pipe 1.
A high-pressure grouting device with dual functions of compaction and rotary spraying for a water-rich cave is characterized in that a grouting pipe 1 for conveying high-pressure slurry is in a rotatable cylindrical shape and comprises an inner cavity 3 for containing the high-pressure slurry, an outer cavity is formed between the grouting pipe 1 and a drill pipe 2, the inner cavity 3 and the outer cavity can rotate independently under the control of a motor 13, the lower portion of the outer wall of the grouting pipe 1 is connected with a worm wheel 9 and drives the grouting pipe to rotate, the closing and opening of a drill bit 12 can be controlled, the outer wall of the drill pipe 2 drives the two drill bits 12 to rotate so that the drill bit 12 drills rock and soil, and the grouting pipe 1 and the worm wheel 9, the drill pipe 2 and the drill bit 12 rotate independently without influence.
The upper part of the grouting pipe 1 is connected with a motor 13, the tail end of the lower part of the grouting pipe is riveted with a worm wheel 9 through a riveting joint 8, the motor 13 applies torque to drive the outer wall of the grouting pipe 1 to rotate and synchronously drive the worm wheel 9 to rotate, the worm wheel 9 and a worm 10 form a linkage system, and the linkage system is tightly meshed for transmission to realize integrated synchronous control; the two worms 10 are symmetrically arranged on two sides of the worm wheel 9, are respectively connected with the drills 12 on two sides, and are respectively vertically and tightly meshed with the worm wheel 9 to form a worm and gear linkage system for accurately controlling the closing and opening of the drills 12. The fixed worm shaft 11 of the worm 10 and the drill pipe 2 keep relatively static, and the two drills 12 respectively keep relatively static with the left worm 10 and the right worm 10; the inner walls of the two drill bits 12 are attached to the outer wall of the grouting pipe 1, so that high-pressure slurry in the inner cavity 3 of the grouting pipe 1 is prevented from leaking outside when the drill bits 12 are closed and flows out along the inner wall of the inner cavity 3 when the drill bits 12 are opened.
Preferably, the rotary spraying device comprises two high-pressure slurry inner nozzles 5 which are symmetrically arranged along the circumferential direction of the middle part of the grouting pipe 1, two slurry spraying channels 6 which are formed by the two inner nozzles extending between the grouting pipe 1 and the drill pipe 2 along the radial direction of the two pipes, and two outer nozzles 4 which are formed by the slurry spraying channels 6 and the pipe wall of the drill pipe 2 in an intersecting manner; the inner wall of the drill pipe 2 is also provided with a pair of mutually symmetrical sealing plugs 7 which form a certain angle with the outer nozzle 4 on the circumference, the certain angle is 20-50 degrees, the preferred angle is 30 degrees in the invention, and the sealing plugs 7 have the function of tightly sealing the guniting channel 6 when the high-pressure grouting device rotates in a staggered manner.
Preferably, the high-pressure grouting device with the dual functions of compaction and rotary spraying works: by means of controlling the motor 13, the drill bits 12 on the two sides can be opened or closed, when the motor 13 is controlled to apply anticlockwise torque, the grouting pipe 1 rotates rightwards at a certain angle and is locked, the torque is transmitted to the worms 10 on the two sides through the grouting pipe 1 and the worm wheel 9, the two drill bits 12 are controlled to be closed, so that a high-pressure closed space is formed in the inner cavity 3 of the grouting pipe 1, the guniting channel 6 and the sealing plug 7 are not in butt joint in a staggered mode, the nozzle 5 is axially connected with the outer nozzles 4 through the guniting channel 6, high-pressure slurry can be sprayed out through the outer nozzles 4 on the two sides, the drill pipe 2 and the grouting pipe 1 are synchronously and continuously applied with the torque by means of the motor 13, the high-pressure grouting device rotates integrally to achieve high-pressure rotary spraying, and the right-rotation of 30 degrees is preferred in the invention.
When the control motor 13 applies clockwise torque, the grouting pipe 1 rotates at a certain angle at the left side and is locked, the grouting channel 6 is staggered with the outer nozzle 4 and is in butt joint sealing with the sealing plug 7, high-pressure slurry is not sprayed out, the grouting pipe 1 drives the worm wheel 9 to further drive the worms 10 and the drill bits 12 at two sides to rotate, the drill bits 12 at two sides are opened at the moment, the inner cavity 3 is communicated with a broken rock soil body drilled at the lower part of the drill bit 12, the high-pressure slurry in the inner cavity 3 can be poured into the soil body below to realize compaction grouting, and the left rotation of 30 degrees is preferred in the invention.
Preferably, for the two worms 10, one pair of the worms 10 includes a direction-changing worm gear 14 to ensure that the two worms 10 rotate synchronously in opposite directions, so that the two bits 12 are simultaneously turned on and simultaneously turned off.
Preferably, the control process of the high-pressure grouting device with the dual functions of compaction and rotary spraying is as follows: before a hole is drilled, a motor 13 is controlled by an electric signal to screw a grouting pipe 1 rightwards, the grouting pipe is locked by a mechanical buckle in the motor 13, at the moment, an inner nozzle 5 is communicated with an outer nozzle 4, drill bits 12 on two sides are tightly closed, the lower part of an inner cavity 3 is closed, and is only communicated with the outside at the position of the inner nozzle 5, a high-pressure grouting device is in a high-pressure rotary spraying mode, as shown in figure 1, the high-pressure grouting device drills into a soil body by rotating and pressing, and simultaneously, wall protection, slag conveying, and drill bit 12 lubricating and cooling are performed by using mud circulation;
when the drill bit 12 reaches the specified drilling depth and needs to be compacted and grouted, the electric signal controls the motor 13 to rotate left for a certain angle to drive the grouting pipe 1, the worm wheel 9 and the worm 10 and further drive the drill bit 12 to rotate left, the drill bit 12 is opened and properly inserted into the soil body, high-pressure slurry is pumped to the soil body below through the inner cavity 3 for compaction and grouting, as shown in fig. 2, when high-pressure rotary spraying operation is needed, the high-pressure grouting device is lifted to an operation position, the cement slurry needed by the rotary spraying operation is pumped to be discharged out of the compacted slurry retained in the inner cavity 3, the high-pressure grouting device is controlled to be in a high-pressure rotary spraying mode through an electric signal, the slurry is pressurized and pumped, the motor 13 controls the grouting pipe 1 and the drill pipe 2 to rotate synchronously, the high-pressure grouting device is lifted, and the high-pressure rotary spraying operation is carried out by cutting and stirring the cement soil through the rotation of the high-pressure slurry and the drill bit 12.
Preferably, the control method of the high-pressure grouting device of the invention comprises the following steps: the high-pressure grouting device is required to be in a first position under the control of an external traction facility according to actual working conditions, namely the first working condition of construction operation of the device, wherein high-pressure rotary jet cutting of soil is required to be performed, and the soil is stirred and stirred by a drilling tool in a rotating mode to reinforce the periphery of a pile, the left drill bit 12 and the right drill bit 12 are closed, the rotary jet device is in a communicated state, the high-pressure grouting device performs drilling or high-pressure rotary jet operation, and the external traction facility is a motor 13;
after the high-pressure grouting device is applied with torque, the rotary spraying device is in an off state, meanwhile, the worm wheel 9 is twisted to drive the worms 10 on the two sides to rotate, the left and right drill bits 12 are further driven to change from a closed state to an open state, the high-pressure grouting device is required to be in a second position under the control of an external traction facility according to actual working conditions, namely, the high-pressure grouting device is used for carrying out a second working condition of construction operation, high-pressure slurry needs to be poured into foundation soil at the bottom of a drill hole to improve the bearing capacity of a pile foundation, the drill bits 12 are changed from the closed state to the open state, and the high-pressure grouting device carries out compaction grouting operation.
Specifically, the left drill bit 12 and the right drill bit 12 are closed by means of meshing of a worm gear and a worm, the inner nozzle 5 is communicated with the outer nozzle 4 through the guniting channel 6, and the high-pressure grouting device is in a first working condition and is used for drilling operation or grouting for high-pressure rotary guniting operation; when the upper control motor 13 applies torque to the inner cavity of the high-pressure grouting device, the inner cavity of the high-pressure grouting device rotates to enable the inner nozzle 5 and the outer nozzle 4 to be staggered, the sealing plug 7 on the inner wall of the drill pipe 2 seals the grouting channel 6, meanwhile, the worm wheel 9 at the tail end of the inner cavity is twisted to drive the worms 10 at two sides to rotate, the left drill bit 12 and the right drill bit 12 are further driven to be changed from a closed state to an open state, the inner cavity is communicated with the outside, the high-pressure grouting device is in a second working condition, and high-pressure slurry in the inner cavity can be discharged from a slurry outlet right below the grouting pipe 1 to be compacted and grouted.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the invention as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The control method of the high-pressure grouting device is characterized in that the high-pressure grouting device comprises a grouting pipe, a drill pipe, a traction device, a drill bit and a worm and gear linkage system;
the grouting pipe is arranged inside the drill pipe and is coaxial with the drill pipe;
the upper ends of the grouting pipe and the drilling pipe are connected with the traction device;
the lower end of the grouting pipe is used for being connected with the worm and gear linkage system;
the lower end of the drill pipe is used for connecting the drill bit;
the rotary spraying device is arranged on the circumference of the middle part of the grouting pipe;
the rotary spraying device comprises two high-pressure slurry internal nozzles symmetrically arranged in the circumferential direction, a slurry spraying channel formed by the two high-pressure slurry internal nozzles in a manner of radially extending between the grouting pipe and the drill pipe, and an outer nozzle formed by intersecting the slurry spraying channel and the pipe wall of the drill pipe;
the method comprises the following steps: the high-pressure grouting device is located at a first position, namely the first working condition of construction operation of the high-pressure grouting device, high-pressure rotary jet cutting of soil is needed, pile periphery reinforcement is needed by rotary mixing of a drilling tool, a left drill bit and a right drill bit are in a closed state, a rotary jetting device of the high-pressure grouting device is in a communicated state, the high-pressure grouting device performs drilling or high-pressure rotary jetting operation, and an external traction facility is a motor;
after the high-pressure grouting device is applied with torque, the rotary spraying device is in an off state, meanwhile, a worm wheel of the worm wheel and worm linkage system is twisted to rotate, worms of the worm wheel and worm linkage system on two sides are driven to rotate, the left drill bit and the right drill bit are further driven to be changed from a closed state to an open state, the high-pressure grouting device is in a second position, namely, the high-pressure grouting device is in a second working condition of construction operation, high-pressure slurry needs to be poured into foundation soil at the bottom of a drill hole to improve bearing capacity of a pile foundation, the drill bit is changed from the closed state to the open state, the high-pressure grouting device carries out compaction grouting operation, and the first position is different from the second position.
2. The method for controlling a high-pressure grouting device according to claim 1, wherein an inner cavity is formed in the grouting pipe, an outer cavity is formed between the grouting pipe and the drill pipe, and the grouting pipe and the drill pipe rotate relatively independently under the control of the traction device.
3. The control method of the high-pressure grouting device according to claim 1, wherein the worm gear and worm linkage system comprises a worm gear and two worms, and the two worms are symmetrically arranged on two sides of the worm gear.
4. The control method of the high-pressure grouting device according to claim 1, wherein the lower end of the grouting pipe is connected with the worm wheel of the worm and gear linkage system through a rivet joint.
5. The control method of the high-pressure grouting device according to claim 1, wherein two drill bits are arranged and are arranged on two sides of the drill pipe in a bilateral symmetry manner, and the inner walls of the two drill bits are attached to the outer wall of the grouting pipe.
6. The control method of the high-pressure grouting device according to claim 5, wherein the two worms are respectively connected to two drill bits arranged in bilateral symmetry.
7. The method for controlling a high-pressure grouting device according to claim 1, characterized in that the rotary jetting device further comprises sealing plugs which are arranged on the inner wall of the drill pipe and are symmetrical to each other at a certain angle with the outer nozzle on the circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780624.XA CN113463641B (en) | 2021-07-09 | 2021-07-09 | High-pressure grouting device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110780624.XA CN113463641B (en) | 2021-07-09 | 2021-07-09 | High-pressure grouting device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113463641A CN113463641A (en) | 2021-10-01 |
| CN113463641B true CN113463641B (en) | 2022-04-15 |
Family
ID=77879723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110780624.XA Active CN113463641B (en) | 2021-07-09 | 2021-07-09 | High-pressure grouting device and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113463641B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116044455B (en) * | 2023-04-03 | 2023-06-23 | 湖南大学 | Grouting system for directional reinforcement of tunnel |
| CN118273335B (en) * | 2024-05-14 | 2024-09-17 | 建基建设集团有限公司 | Grouting equipment for super large jet grouting construction and grouting process thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104880539B (en) * | 2015-06-02 | 2016-05-25 | 太原理工大学 | In underground mining, country rock is subject to the analog simulation device and method that mine water affects |
| CN106351225B (en) * | 2016-11-09 | 2019-05-21 | 北京中岩大地科技股份有限公司 | A kind of power head device and its engineering method for high pressure jet grouting |
| CN110130334B (en) * | 2019-05-24 | 2021-06-04 | 杭州昂创科技有限公司 | Self-drilling high-pressure rotary-jetting bag grouting expanding anti-floating anchor rod construction method |
| CN111550195B (en) * | 2020-04-16 | 2021-08-10 | 浙江大通建设科技有限公司 | Drill rod device free of pilot hole continuous same-direction jet grouting and high-pressure jet grouting pile construction method |
| CN212270940U (en) * | 2020-05-09 | 2021-01-01 | 中国有色金属长沙勘察设计研究院有限公司 | Drilling and grouting integrated grouting device |
-
2021
- 2021-07-09 CN CN202110780624.XA patent/CN113463641B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113463641A (en) | 2021-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113463641B (en) | High-pressure grouting device and control method | |
| US4212565A (en) | Method and apparatus for forming a continuous row of cast-in-place piles to form a wall | |
| CN100570128C (en) | The comprehensive high pressure jet grouting job practices of fenestrated grout stopping device | |
| CN213267890U (en) | Foundation engineering slip casting device | |
| CN201395793Y (en) | Long spiral high-pressure spraying mud injecting stirring pile-forming device | |
| CN105862752A (en) | Arc-locked plum blossom shaped pile forming facility | |
| CN106400791A (en) | Mechanical equipment for manufacturing locking combinational herringbone piles | |
| CN209907378U (en) | Cement mixing pile machine | |
| CN113846632A (en) | Soil-squeezing pile construction method for reinforcing part of bearing layer | |
| CN113668519A (en) | Internal and external tooth opposite stirring type single-shaft stirring pile machine and construction method thereof | |
| CN112575802B (en) | Construction process of cluster swing-spraying impervious wall | |
| CN105887851A (en) | Herringbone pile foundation treatment machine | |
| CN202706018U (en) | Double-pipe jet grouting drilling machine | |
| CN117071611A (en) | Seepage-proofing system of earth-rock dam cofferdam and construction method thereof | |
| CN107100166A (en) | Multiaxis high-pressure injection stake | |
| CN115030147B (en) | Stirring pile up-down guniting conversion mechanism and construction method | |
| KR100564368B1 (en) | Consistency compaction grouting system for a construction of water-proof wall | |
| CN213625557U (en) | Double-liquid triple-pipe high-pressure rotary spraying construction device and system | |
| CN108999185A (en) | High-pressure rotary-spray is the same as Jing Xuanjiao mechanism and compound strength stake all-in-one machine | |
| CN208949875U (en) | High-pressure rotary-spray is the same as Jing Xuanjiao mechanism and compound strength stake all-in-one machine | |
| CN105484238A (en) | H-shaped single-eye-spliced drilling and mixing machine | |
| CN105484239A (en) | H-shaped eye-spliced pile drilling and mixing machine | |
| CN201089899Y (en) | Orientation pressure-control apparatus for horizontal rotary spraying pile | |
| CN221372162U (en) | Cement mixing pile machine | |
| JPH0114380B2 (en) |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |