CN111235993A - Improvement device and improvement method for collapsible loess subgrade - Google Patents
Improvement device and improvement method for collapsible loess subgrade Download PDFInfo
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- CN111235993A CN111235993A CN202010061271.3A CN202010061271A CN111235993A CN 111235993 A CN111235993 A CN 111235993A CN 202010061271 A CN202010061271 A CN 202010061271A CN 111235993 A CN111235993 A CN 111235993A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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- 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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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Abstract
The invention discloses an improvement device and an improvement method for a collapsible loess subgrade, and relates to the technical field of building construction equipment. The invention comprises a machine table, wherein handles are arranged on two side surfaces of the machine table, and a first liquid storage tank and a second liquid storage tank are fixedly connected to the bottom surface of the machine table respectively; the surfaces of the first liquid storage tank and the second liquid storage tank are fixedly connected with a miniature high-pressure pump; one end of the water inlet of each of the two micro high-pressure pumps is communicated with the first liquid storage tank and the second liquid storage tank respectively; the top surface of the machine table is fixedly connected with a mounting frame. The collapsible loess subgrade is reinforced by adopting a chemical reinforcement principle, and when the collapsible loess subgrade works, the two liquid outlet holes inject chemical reagents into the foundation soil in a high-pressure high-speed rotating state, and gel substances are generated through chemical reaction or the surfaces of soil particles are activated, and the soil particles are combined, so that the soil body strength of the collapsible loess subgrade is effectively improved.
Description
Technical Field
The invention belongs to the technical field of building construction equipment, and particularly relates to an improvement device and an improvement method for a collapsible loess subgrade.
Background
The collapsible property of the collapsible loess foundation can bring different degrees of harm to the structure, so that the structure is greatly settled, cracked and inclined, and even the safety and the use of the structure are seriously influenced; therefore, when building structures such as bridges and culverts in loess areas, reliable determination methods and comprehensive knowledge of collapsible loess foundations are required, and correct engineering measures are taken to prevent or eliminate the collapsible property of the collapsible loess foundations.
One of the effective methods for treating the collapsible loess foundation is a chemical reinforcement method, which utilizes some chemical solutions to be injected into the foundation soil, generates gelled substances through chemical reaction or activates the surfaces of soil particles, so that the soil particles are combined, the strength of the soil body is improved, no special equipment is available at present, various chemical solutions can be conveniently injected into the collapsible loess foundation, and the chemical solutions are conveyed by adopting a common pipeline, so that different chemical solutions stored separately are difficult to gather and concentrate, and the filling speed of various chemical solutions is difficult to adjust, so that the using effect is poor.
Disclosure of Invention
The invention aims to provide an improvement device and an improvement method for a collapsible loess subgrade, which solve the problem of poor effect of the existing improvement device and the improvement method for the collapsible loess subgrade through the design of an outer shaft, an inner shaft, a soil covering rod and a micro high-pressure pump.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to an improvement device for a collapsible loess subgrade, which comprises a machine table, wherein handles are arranged on two side surfaces of the machine table, the bottom surface of the machine table is fixedly connected with a first liquid storage tank and a second liquid storage tank respectively, and one surface of each of the first liquid storage tank and the second liquid storage tank is fixedly connected with a micro high-pressure pump; one ends of the water inlets of the two miniature high-pressure pumps are respectively communicated with the first liquid storage tank and the second liquid storage tank; the top surface of the machine table is fixedly connected with an installation frame; the axis position of the mounting rack is rotatably connected with an outer shaft through a bearing; the inner wall of the outer shaft is rotatably connected with an inner shaft through a bearing; a liquid inlet head is fixedly arranged at the position of the mounting frame corresponding to the inner shaft; the inner wall of the liquid inlet head is rotationally connected with the inner shaft, and two liquid inlet branch pipes are arranged on the liquid inlet head; one end of each of the water outlets of the two miniature high-pressure pumps is communicated with the two liquid inlet branch pipes through pipelines respectively;
two liquid outlet flow passages are formed in the inner shaft; the two liquid outlet flow channels are respectively communicated with the lower ends of the two liquid inlet branch pipes; a drill bit is fixedly arranged at the bottom end of the inner shaft; two liquid outlet holes are formed in the surface of the drill bit; one end of each liquid outlet hole is communicated with the two liquid outlet channels;
the peripheral side surface of the outer shaft is fixedly connected with a rotating seat; three soil covering rods uniformly arranged in the circumferential direction of the rotating seat are hinged inside the rotating seat; the top ends of the three soil covering rods are hinged with adjusting rods; a displacement pipe is sleeved on the peripheral side surface of the outer shaft; the lower end of the displacement tube is fixedly connected with an adjusting pressure seat; a pressing spring is arranged between the opposite surfaces of the adjusting pressing seat and the rotating seat; one end of each of the three adjusting rods is hinged with the adjusting pressure seat; the bottom surface of the machine table is fixedly connected with a group of electric push rods; the lower ends of the group of electric push rods are fixedly connected with a connecting ring; the inner wall of the connecting ring is rotationally connected with the displacement pipe through a bearing;
the top surface of the machine table is fixedly connected with a first transmission motor and a second transmission motor respectively; one end of the output shaft of the first transmission motor is in transmission connection with the inner shaft through a belt; one end of the output shaft of the second transmission motor is in transmission connection with the outer shaft through a belt.
Preferably, the displacement tube is a central tube with two open ends; a group of limiting sliding chutes distributed in a circumferential array are fixedly arranged on the inner wall of the displacement pipe; and the peripheral side surface of the outer shaft is fixedly provided with a limiting lug matched with the limiting sliding groove at the position corresponding to the limiting sliding groove.
Preferably, the top ends of the first liquid storage tank and the second liquid storage tank are provided with liquid replenishing pipes; the peripheral side surface of the liquid supplementing pipe is in threaded connection with an end enclosure; one end of each liquid supplementing pipe extends to the outside of the machine table.
Preferably, the machine table is a disc-shaped structure; the cross sections of the machine table and the mounting rack are U-shaped.
Preferably, the liquid outlet hole is formed in the position of a chamfer inclined plane of the drill bit; the included angle between the liquid outlet angle of the two liquid outlet holes and the central axis of the drill bit is 45 degrees.
Preferably, the group of electric push rods is distributed on one surface of the machine table in a circumferential array.
In a second aspect, the present invention further provides a method for improving collapsible loess subgrade based on the device for improving collapsible loess subgrade, which comprises the following steps:
SS001, equipment of chemical agents: preparing water glass main slurry with sufficient volume and acrylate composite gelling agent proportioning liquid with sufficient volume in advance, filling the water glass main slurry into a first liquid storage tank, and filling the acrylate composite gelling agent proportioning liquid into a second liquid storage tank;
SS002, program setting: controlling the power of a micro high-pressure pump communicated with the first liquid storage tank and the power of a micro water pump communicated with the second liquid storage tank, thereby setting and controlling the liquid outlet rate and the liquid outlet pressure of the first liquid storage tank and the second liquid storage tank;
SS003, drilling tank slurry: calibrating a slurry tank point according to the set density, then sequentially performing punching operation according to the slurry tank point, starting a second transmission motor before each punching operation, and driving a displacement pipe to move upwards by the second transmission motor through the rotation of an outer shaft and the pushing of an electric push rod so that the area formed by the three soil covering rods is smaller than that of a drill bit;
SS004, starting a first transmission motor, driving a drill bit to rotate at a set speed through an inner shaft, drilling the collapsible loess subgrade part after the drill bit rotates, controlling the first transmission motor to stop rotating after drilling to a specified depth, simultaneously starting a second transmission motor to rotate reversely, driving a displacement pipe to move downwards through the rotation of an electric push rod and the pushing of the electric push rod by the second transmission motor, enabling the area formed by three soil covering rods to be larger than the area of the drill bit, starting the first transmission motor, simultaneously slowly lifting the drill bit upwards through a handle, working two miniature high-pressure pumps at a set power during the lifting process, further enabling two liquid outlet holes to spray acrylate composite gelatinizing agent proportioning liquid and water glass main serous liquid into the collapsible loess subgrade at different rates, and during the working, rotating the inner shaft and an outer shaft at a reverse speed, the drill bit is driven to rotate through the inner shaft, the drill bit enables the acrylate composite gelling agent and the water glass main slurry to be matched in the collapsible loess subgrade, the soil covering rod is enabled to continuously break up formed holes through rotation of the outer shaft, broken-up soil residues are rapidly stirred and matched with the acrylate composite gelling agent and the water glass main slurry under the stirring effect and the liquid impact effect of the drill bit, and after the acrylate composite gelling agent and the water glass main slurry are matched, gel reaction occurs, and then the subgrade is improved.
The invention has the following beneficial effects:
the invention adopts the chemical strengthening principle to strengthen the collapsible loess subgrade, when in work, two liquid outlet holes inject chemical reagents into the foundation soil in a high-pressure high-speed rotating state, gel substances are generated through chemical reaction or the surfaces of soil particles are activated, and the soil particles are combined, thereby effectively improving the soil body strength of the collapsible loess subgrade, and in the injection process, through the state control of a miniature high-pressure pump, the flow rate ratio of the chemical reagents can be accurately controlled on one hand, on the other hand, the soil body can be impacted through the high-pressure liquid outlet state, thereby enhancing the mixing degree of the soil body and the chemical reagents, meanwhile, through the high-speed rotating liquid outlet design, the uniform mixing of the two reagents can be realized, and through the shape variable design of an earthing rod and the reverse rotating design of a drill bit, the device can rapidly stir and mix the mixture of the soil body and the chemical reagents through the differential reverse stirring principle, the chemical strengthening effect of the device is enhanced, wherein before liquid spraying, the area formed by the three soil covering rods is smaller than that of the drill bit, the soil covering rods do not carry out soil covering work at the moment, and the drill bit carries out drilling operation; after liquid is sprayed, the area formed by the three soil covering rods is larger than that of the drill bit, the soil covering rods continuously break up the formed holes, the drill bit mixes the acrylate composite gelling agent and the water glass main slurry, and the broken-up soil residues are quickly stirred, matched and mixed with the acrylate composite gelling agent and the water glass main slurry more fully under the stirring action of the drill bit and the liquid impact action.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of an apparatus for improving a collapsible loess subgrade;
FIG. 2 is a schematic front view of the structure of FIG. 1;
FIG. 3 is a side view of the structure of FIG. 1;
FIG. 4 is a schematic structural diagram of the first transmission motor, the second transmission motor, the fluid infusion tube and the machine platform;
FIG. 5 is a schematic structural diagram of the machine, the first liquid storage tank, the second liquid storage tank and the battery assembly;
FIG. 6 is a schematic structural view of the adjusting pressing seat, the liquid outlet hole, the rotary seat and the abutting spring;
FIG. 7 is a schematic structural view of the liquid outlet channel, the outer shaft and the inner shaft;
in the drawings, the components represented by the respective reference numerals are listed below:
1-machine table, 2-handle, 3-first liquid storage tank, 4-second liquid storage tank, 5-storage battery component, 6-miniature high-pressure pump, 7-mounting frame, 8-outer shaft, 9-inner shaft, 10-liquid inlet head, 11-liquid outlet flow channel, 12-drill bit, 13-liquid outlet hole, 14-rotary seat, 15-soil covering rod, 16-adjusting rod, 17-displacement tube, 18-adjusting pressure seat, 19-abutting spring, 20-electric push rod, 21-first transmission motor, 22-second transmission motor and 23-liquid supplementing tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the invention is an improved device of collapsible loess subgrade, comprising a machine table 1, wherein handles 2 are arranged on two side surfaces of the machine table 1, and a first liquid storage tank 3 and a second liquid storage tank 4 are respectively fixedly connected to the bottom surface of the machine table 1; a micro high-pressure pump 6 is fixedly connected to one surface of each of the first liquid storage tank 3 and the second liquid storage tank 4; one end of a water inlet of each of the two miniature high-pressure pumps 6 is respectively communicated with the first liquid storage tank 3 and the second liquid storage tank 4; the top surface of the machine table 1 is fixedly connected with an installation frame 7; the axle center of the mounting rack 7 is rotatably connected with an outer shaft 8 through a bearing; the inner wall of the outer shaft 8 is rotatably connected with an inner shaft 9 through a bearing; a liquid inlet head 10 is fixedly arranged at the position of the mounting frame 7 corresponding to the inner shaft 9; the inner wall of the liquid inlet head 10 is rotationally connected with the inner shaft 9, and two liquid inlet branch pipes are arranged on the liquid inlet head 10; one end of the water outlet of the two miniature high-pressure pumps 6 is respectively communicated with the two liquid inlet branch pipes through a pipeline;
two liquid outlet flow channels 11 are formed in the inner shaft 9; the two liquid outlet flow channels 11 are respectively communicated with the lower ends of the two liquid inlet branch pipes; a drill bit 12 is fixedly arranged at the bottom end of the inner shaft 9; two liquid outlet holes 13 are formed in the surface of the drill bit 12; one end of each liquid outlet hole 13 is respectively communicated with the two liquid outlet runners 11;
the peripheral side surface of the outer shaft 8 is fixedly connected with a rotating seat 14; three soil covering rods 15 uniformly arranged in the circumferential direction are hinged inside the rotating seat 14; the top ends of the three soil covering rods 15 are hinged with adjusting rods 16; a displacement pipe 17 is sleeved on the peripheral side surface of the outer shaft 8; the lower end of the displacement tube 17 is fixedly connected with an adjusting pressure seat 18; a pressing spring 19 is arranged between the opposite surfaces of the adjusting pressing seat 18 and the rotating seat 14; one ends of the three adjusting rods 16 are hinged with the adjusting pressure seats 18; the bottom surface of the machine table 1 is fixedly connected with a group of electric push rods 20; the lower ends of the group of electric push rods 20 are fixedly connected with connecting rings; the inner wall of the connecting ring is rotationally connected with the displacement pipe 17 through a bearing;
the top surface of the machine table 1 is fixedly connected with a first transmission motor 21 and a second transmission motor 22 respectively; one end of an output shaft of the first transmission motor 21 is in transmission connection with the inner shaft 9 through a belt; one end of the output shaft of the second transmission motor 22 is in transmission connection with the outer shaft 8 through a belt.
Wherein, the displacement tube 17 is a central tube with two open ends; a group of limit chutes distributed in a circumferential array are fixedly arranged on the inner wall of the displacement tube 17; the peripheral side of the outer shaft 8 is fixedly provided with a limit lug matched with the limit chute at the position corresponding to the limit chute. This connection of the displacement tube 17 and the outer shaft 8 is simple and easy to implement.
Wherein, the top ends of the first liquid storage tank 3 and the second liquid storage tank 4 are both provided with a liquid supplementing pipe 23; the circumferential side surface of the liquid supplementing pipe 23 is in threaded connection with a seal head; one end of each of the two liquid-replenishing pipes 23 extends to the outside of the machine table 1. Accessible moisturizing pipe 23 is first liquid reserve tank 3 and 4 fluid infusions of second liquid reserve tank, opens the head when needing the fluid infusion, and the back that finishes is complemented, covers the head, prevents that liquid from volatilizing.
Wherein, the machine table 1 is a disc-shaped structure; the cross sections of the machine table 1 and the mounting rack 7 are both U-shaped.
The liquid outlet hole 13 is arranged at the position of the chamfer inclined plane of the drill bit 12, so that liquid flows out along the chamfer inclined plane of the drill bit 12 and is prevented from splashing; the included angle between the liquid outlet angle of the two liquid outlet holes 13 and the central axis of the drill bit is 45 degrees.
Wherein, a set of electric putter 20 is the circumference array distribution on a surface of board 1, and evenly distributed's electric putter 20 guarantees that the displacement pipe atress is even to guarantee the smooth removal of displacement pipe.
Wherein, still disclose an improvement method of collapsible loess road bed based on improvement device of collapsible loess road bed, including the following step:
SS001, equipment of chemical agents: preparing water glass main slurry with sufficient volume and acrylate composite gelling agent proportioning liquid with sufficient volume in advance, filling the first liquid storage tank 3 with the water glass main slurry, and filling the second liquid storage tank 4 with the acrylate composite gelling agent proportioning liquid;
SS002, program setting: controlling the power of a micro high-pressure pump 6 communicated with the first liquid storage tank 3 and the power of a micro water pump communicated with the second liquid storage tank 4, thereby setting and controlling the liquid outlet speed and the liquid outlet pressure of the first liquid storage tank 3 and the second liquid storage tank 4;
SS003, drilling tank slurry: calibrating a slurry tank point according to the set density, then sequentially performing punching operation according to the slurry tank point, starting a second transmission motor 22 before each punching operation, and driving a displacement pipe 17 to move upwards by the second transmission motor 22 through the rotation of an outer shaft 8 and the pushing of an electric push rod 20 so that the area formed by the three soil covering rods 15 is smaller than that of a drill bit 12;
SS004, starting a first transmission motor 21, driving a drill bit 12 to rotate at a set speed through an inner shaft by the first transmission motor 21, drilling holes on the collapsible loess subgrade part after the drill bit 12 rotates, controlling the first transmission motor 21 to stop rotating after the holes are drilled to a specified depth, stopping the rotation of the inner shaft 9, simultaneously starting a second transmission motor 22 to rotate reversely, driving a displacement pipe 17 to move downwards through the rotation of an electric push rod 20 and the pushing of the electric push rod 20 by the second transmission motor 22, enabling the area formed by three soil covering rods 15 to be larger than the area of the drill bit 12, starting the first transmission motor 21, slowly lifting the drill bit 12 upwards through a handle 2, working two micro high-pressure pumps 6 at a set power in the lifting process, and then enabling two liquid outlet holes 13 to spray the acrylate composite gelling agent liquid and the water glass main serous into the collapsible loess subgrade according to different rates, and during operation, the inner shaft 9 and the outer shaft 8 rotate in opposite directions at a differential speed, the drill bit 12 is driven to rotate by the inner shaft 9, the drill bit 12 enables the acrylate composite gelling agent and the water glass main slurry to be matched in the collapsible loess subgrade, the soil covering rod 15 continuously breaks up formed holes through rotation of the outer shaft 8, broken-up soil residues are rapidly stirred and matched with the acrylate composite gelling agent and the water glass main slurry under the stirring effect and the liquid impact effect of the drill bit 12, and after the acrylate composite gelling agent and the water glass main slurry are matched, a gel reaction occurs, and then the subgrade is improved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The utility model provides an improvement device of collapsible loess road bed, includes board (1), board (1) both sides face all is provided with handle (2), board (1) bottom surface difference fixedly connected with first liquid reserve tank (3) and second liquid reserve tank (4), its characterized in that:
one surfaces of the first liquid storage tank (3) and the second liquid storage tank (4) are fixedly connected with a micro high-pressure pump (6); one ends of water inlets of the two miniature high-pressure pumps (6) are respectively communicated with the first liquid storage tank (3) and the second liquid storage tank (4); the top surface of the machine table (1) is fixedly connected with a mounting frame (7); the axis position of the mounting rack (7) is rotatably connected with an outer shaft (8) through a bearing; the inner wall of the outer shaft (8) is rotatably connected with an inner shaft (9) through a bearing; a liquid inlet head (10) is fixedly arranged at the position of the mounting rack (7) corresponding to the inner shaft (9); the inner wall of the liquid inlet head (10) is rotatably connected with the inner shaft (9), and two liquid inlet branch pipes are arranged on the liquid inlet head (10); one ends of the water outlets of the two miniature high-pressure pumps (6) are respectively communicated with the two liquid inlet branch pipes through pipelines;
two liquid outlet flow channels (11) are formed in the inner shaft (9); the two liquid outlet flow channels (11) are respectively communicated with the lower ends of the two liquid inlet branch pipes; a drill bit (12) is fixedly arranged at the bottom end of the inner shaft (9); two liquid outlet holes (13) are formed in the surface of the drill bit (12); one end of each of the two liquid outlet holes (13) is respectively communicated with the two liquid outlet channels (11);
the peripheral side surface of the outer shaft (8) is fixedly connected with a rotating seat (14); three soil covering rods (15) uniformly arranged in the circumferential direction of the rotating seat (14) are hinged in the rotating seat (14); the top ends of the three soil covering rods (15) are hinged with adjusting rods (16); a displacement pipe (17) is sleeved on the peripheral side surface of the outer shaft (8); the lower end of the displacement pipe (17) is fixedly connected with an adjusting pressure seat (18); a pressing spring (19) is arranged between the opposite surfaces of the adjusting pressing seat (18) and the rotating seat (14); one ends of the three adjusting rods (16) are hinged with the adjusting pressure seats (18); the bottom surface of the machine table (1) is fixedly connected with a group of electric push rods (20); the lower ends of the group of electric push rods (20) are fixedly connected with a connecting ring; the inner wall of the connecting ring is rotationally connected with the displacement pipe (17) through a bearing;
the top surface of the machine table (1) is fixedly connected with a first transmission motor (21) and a second transmission motor (22) respectively; one end of an output shaft of the first transmission motor (21) is in transmission connection with the inner shaft (9) through a belt; one end of an output shaft of the second transmission motor (22) is in transmission connection with the outer shaft (8) through a belt.
2. The improvement device of collapsible loess subgrade as set forth in claim 1, wherein said displacement pipe (17) is a central pipe shape opened at both ends; a group of limiting sliding chutes distributed in a circumferential array are fixedly arranged on the inner wall of the displacement pipe (17); the position of the peripheral side of the outer shaft (8) corresponding to the limiting sliding groove is fixedly provided with a limiting convex block matched with the limiting sliding groove.
3. The improvement device of collapsible loess subgrade as set forth in claim 1, wherein the top ends of said first tank (3) and said second tank (4) are provided with fluid replenishing pipes (23); the circumferential side surface of the liquid supplementing pipe (23) is in threaded connection with a seal head; one end of each liquid supplementing pipe (23) extends to the outside of the machine table (1).
4. The improvement device of collapsible loess subgrade as claimed in claim 1, wherein the machine base (1) is a disc-shaped structure; the cross sections of the machine table (1) and the mounting rack (7) are U-shaped.
5. The improvement device of collapsible loess subgrade as set forth in claim 1, wherein said outlet holes (13) are formed at the positions of the chamfered slopes of the drill bits (12); the included angle between the liquid outlet angle of the two liquid outlet holes (13) and the middle shaft of the drill bit is 45 degrees.
6. The apparatus for improving the collapsible loess subgrade as set forth in claim 1, wherein said plurality of electric push rods (20) are arranged in a circumferential array on a surface of the machine bed (1).
7. A method for improving a collapsible loess subgrade based on the apparatus for improving a collapsible loess subgrade as set forth in any one of claims 1 to 6, comprising the steps of:
SS001, equipment of chemical agents: preparing water glass main slurry with sufficient volume and acrylate composite gelling agent proportioning liquid with sufficient volume in advance, filling the first liquid storage tank (3) with the water glass main slurry, and filling the second liquid storage tank (4) with the acrylate composite gelling agent proportioning liquid;
SS002, program setting: controlling the power of a micro high-pressure pump (6) communicated with the first liquid storage tank (3) and the power of a micro water pump communicated with the second liquid storage tank (4), thereby setting and controlling the liquid outlet rate and the liquid outlet pressure of the first liquid storage tank (3) and the second liquid storage tank (4);
SS003, drilling tank slurry: according to the set density, a slurry tank point is calibrated, then the drilling operation is sequentially carried out according to the slurry tank calibration point, before the drilling operation is carried out each time, a second transmission motor (22) is started, the second transmission motor (22) drives a displacement pipe (17) to move upwards through the rotation of an outer shaft (8) and the pushing of an electric push rod (20), and the area formed by three soil covering rods (15) is smaller than the area of a drill bit (12);
SS004, starting a first transmission motor (21), driving a drill bit (12) to rotate at a set speed by the first transmission motor (21) through an inner shaft, drilling a hole on the collapsible loess subgrade part after the drill bit (12) rotates, controlling the first transmission motor (21) to stop rotating after the hole is drilled to a specified depth, stopping the rotation of the inner shaft (9), simultaneously starting a second transmission motor (22) to rotate reversely, driving a displacement pipe (17) to move downwards by the rotation of an electric push rod (20) and the pushing of the electric push rod (20) by the second transmission motor (22), enabling the area formed by three soil covering rods (15) to be larger than the area of the drill bit (12), starting the first transmission motor (21), simultaneously and slowly pulling the drill bit (12) upwards through a handle (2), wherein in the pulling process, two micro high-pressure pumps (6) work at a set power, and then enabling two liquid outlet holes (13) to spray acrylate composite gelling agent and water glass main slurry at different rates Liquid goes to collapsible loess subgrade, and during operation, interior axle (9) and outer axle (8) are with differential antiport, drive drill bit (12) through interior axle (9) and rotate, drill bit (12) make compound gelatinizer of acrylic acid salt and water glass owner's thick liquid carry out the ratio in collapsible loess subgrade, rotation through outer axle (8), make earthing rod (15) constantly break up fashioned hole, the soil sediment of breaing up carries out the rapid mixing ratio with compound gelatinizer of acrylic acid salt and water glass owner's thick liquid under the stirring effect of drill bit (12) and the effect of liquid impact, compound gelatinizer of acrylic acid salt and water glass owner's thick liquid ratio back, take place the gel reaction, improve the subgrade then.
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| CN202010061271.3A CN111235993B (en) | 2020-01-19 | 2020-01-19 | Improvement device and improvement method for collapsible loess subgrade |
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| CN202010061271.3A CN111235993B (en) | 2020-01-19 | 2020-01-19 | Improvement device and improvement method for collapsible loess subgrade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945798A (en) * | 2020-08-28 | 2020-11-17 | 湖南城建职业技术学院 | Structure is corrected with building slope to architectural remediation |
| CN114622535A (en) * | 2022-05-07 | 2022-06-14 | 山西交科公路勘察设计院有限公司 | Collapsible loess stabilising arrangement |
| WO2022205804A1 (en) * | 2021-03-31 | 2022-10-06 | 中建科工集团有限公司 | Roadbed improvement device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208136900U (en) * | 2018-04-24 | 2018-11-23 | 中建七局第四建筑有限公司 | A kind of collapsible loess subgrade improved device |
| CN109537389A (en) * | 2018-12-11 | 2019-03-29 | 长沙理工大学 | Embankment structure and its construction method under a kind of EPS |
| CN109665771A (en) * | 2018-12-14 | 2019-04-23 | 沈阳建筑大学 | A kind of application method of collapsible loess consolidation grouting slurries |
| US20190136478A1 (en) * | 2016-02-24 | 2019-05-09 | Ingios Geotechnics, Inc. | Systems and methods to provide pressed and aggregate filled concavities for improving ground stiffness and uniformity |
| CN110453678A (en) * | 2019-07-30 | 2019-11-15 | 甘肃恒捷路桥养护科技有限公司 | A kind of method of high-pressure rotary jet grouting pile double pipe ruling by law reason highway in loess area sedimentation |
-
2020
- 2020-01-19 CN CN202010061271.3A patent/CN111235993B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20190136478A1 (en) * | 2016-02-24 | 2019-05-09 | Ingios Geotechnics, Inc. | Systems and methods to provide pressed and aggregate filled concavities for improving ground stiffness and uniformity |
| CN208136900U (en) * | 2018-04-24 | 2018-11-23 | 中建七局第四建筑有限公司 | A kind of collapsible loess subgrade improved device |
| CN109537389A (en) * | 2018-12-11 | 2019-03-29 | 长沙理工大学 | Embankment structure and its construction method under a kind of EPS |
| CN109665771A (en) * | 2018-12-14 | 2019-04-23 | 沈阳建筑大学 | A kind of application method of collapsible loess consolidation grouting slurries |
| CN110453678A (en) * | 2019-07-30 | 2019-11-15 | 甘肃恒捷路桥养护科技有限公司 | A kind of method of high-pressure rotary jet grouting pile double pipe ruling by law reason highway in loess area sedimentation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945798A (en) * | 2020-08-28 | 2020-11-17 | 湖南城建职业技术学院 | Structure is corrected with building slope to architectural remediation |
| WO2022205804A1 (en) * | 2021-03-31 | 2022-10-06 | 中建科工集团有限公司 | Roadbed improvement device |
| CN114622535A (en) * | 2022-05-07 | 2022-06-14 | 山西交科公路勘察设计院有限公司 | Collapsible loess stabilising arrangement |
| CN114622535B (en) * | 2022-05-07 | 2024-03-19 | 山西交科公路勘察设计院有限公司 | Collapsible loess stabilising arrangement |
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