CN114045834B - Sand soil rapid solidification slip casting pile forming device - Google Patents
Sand soil rapid solidification slip casting pile forming device Download PDFInfo
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- CN114045834B CN114045834B CN202111467921.5A CN202111467921A CN114045834B CN 114045834 B CN114045834 B CN 114045834B CN 202111467921 A CN202111467921 A CN 202111467921A CN 114045834 B CN114045834 B CN 114045834B
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- 239000004576 sand Substances 0.000 title claims abstract description 47
- 239000002689 soil Substances 0.000 title claims abstract description 40
- 238000007712 rapid solidification Methods 0.000 title claims abstract description 6
- 238000007569 slipcasting Methods 0.000 title description 2
- 239000002002 slurry Substances 0.000 claims abstract description 68
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims description 21
- 239000011440 grout Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 description 12
- 230000008023 solidification Effects 0.000 description 12
- 230000000694 effects Effects 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000009440 infrastructure construction Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Classifications
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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
-
- 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
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention provides a sand soil rapid solidification grouting pile forming device which can rapidly form piles in loose sand soil. The device comprises a grouting platform subsystem and an air pressure subsystem; the air pressure subsystem is used for conveying curing agent slurry to the grouting platform subsystem; the grouting platform subsystem can be inserted into sandy soil and used for conveying curing agent slurry into the sandy soil for grouting. The hollow layer of the device is utilized, and the sand body is rapidly solidified into piles in an externally-added grouting mode, so that the capacity of bearing an externally-added load of the sand body is improved, and meanwhile, the sand body is prevented from collapsing and deforming excessively.
Description
Technical Field
The invention belongs to the technical field of sand solidification, and particularly relates to a sand rapid solidification grouting pile forming device.
Background
With the continuous development of the infrastructure construction of China, the conditions of collapse and the like can be generated when vehicles with larger dead weight are required to pass through the surface of loose sand soil body during the infrastructure construction because the soil area of China is wider and the condition of land is more complex, so that the vehicles can not pass through quickly.
In the existing solidification research of loose sand soil bodies, inorganic curing agents are directly sprayed to be solidified, more chemical agents are used for solidification in the later period, but the surface solidification effect is not very obvious, the solidification time is long, and the purpose of rapid construction is difficult to meet.
There is a need for a device that can be cured quickly while preventing excessive collapse of the sand body.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a sand soil rapid solidification grouting pile forming device which can rapidly form piles in loose sand soil bodies.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the invention provides a sand quick solidification grouting pile forming device, which comprises a grouting platform subsystem and a pneumatic subsystem, wherein the grouting platform subsystem is used for grouting the sand;
the air pressure subsystem is used for conveying curing agent slurry to the grouting platform subsystem;
the grouting platform subsystem can be inserted into sandy soil and used for conveying curing agent slurry into the sandy soil for grouting.
Further, the grouting platform subsystem comprises a grouting guide top box and grouting plate pages symmetrically distributed below the grouting guide top box;
a plurality of grouting small holes are distributed on the inner side page of the grouting plate page, so that grouting can be carried out in the sandy soil under grouting pressure;
the top page of the grouting plate page is provided with a grouting threaded hole, and the grouting plate page is communicated with a grouting guide top box through the grouting threaded hole so as to receive curing agent slurry;
the air pressure subsystem comprises an air compressor, a high-pressure air delivery pipe and a sealing tank;
the outlet of the air compressor is connected with one end of the high-pressure air pipe; the other end of the high-pressure gas pipe penetrates through the sealing tank to be communicated with the grouting platform subsystem;
curing agent slurry is stored in the sealing tank;
and the air compressor is communicated with the high-pressure air pipe to convey the curing agent slurry in the sealing tank to the grouting platform subsystem.
Further, the curing agent slurry is a two-component liquid curing agent and comprises curing agent A component slurry and curing agent B component slurry;
the air pressure subsystem comprises an air compressor, a high-pressure air pipe, an A sealing tank and a B sealing tank;
the outlet of the air compressor is connected with one end of the high-pressure air pipe; the other end of the high-pressure gas pipe penetrates through the sealing tank to be communicated with the grouting platform subsystem;
the A-component slurry of the curing agent is stored in the A sealing tank, and the B-component slurry of the curing agent is stored in the B sealing tank;
and the air compressor is communicated with the high-pressure gas pipe to respectively convey the A-component slurry of the curing agent in the A sealing tank and the B-component slurry in the B sealing tank to the grouting platform subsystem.
Further, the air compressor is provided with a valve for controlling the air compressor to be started or closed.
Further, the grouting platform subsystem comprises a grouting guide top box and a plurality of grouting plate pages symmetrically distributed below the grouting guide top box;
a plurality of grouting small holes are distributed on the inner side page of the grouting plate page, so that grouting can be carried out in the sandy soil under grouting pressure;
the top page of the grouting plate page is provided with a grouting threaded hole, and the grouting plate page is communicated with a grouting guide top box through the grouting threaded hole so as to receive A-component slurry or B-component slurry.
Further, the grouting guiding top box comprises a base, an upper cover, an A grouting guiding device and a B grouting guiding device, wherein the A grouting guiding device is arranged in the box body and used for guiding A component slurry into a grouting plate page, and the B grouting guiding device is used for guiding B component slurry into the grouting plate page;
two screw holes and two grouting tap holes are respectively formed in the upper cover;
the four corners of the base are respectively welded with an A grouting threaded pipe orifice and a B grouting threaded pipe orifice which can be screwed tightly with a grouting plate page for grouting, the upper end and the lower end of the A grouting threaded pipe orifice and the lower end of the B grouting threaded pipe orifice are both required to be threaded, and the lower end of the A grouting threaded pipe orifice and the lower end of the B grouting threaded pipe orifice are required to be higher than the base;
the A grouting guide device comprises an A grouting tap; each grouting tap is provided with three interfaces, wherein the upper end interface is communicated with a grouting tap hole of the upper cover through threads, and the lower end two interfaces are respectively communicated with an A grouting threaded pipe orifice through a communicating pipe;
the B grouting guide device comprises a B grouting tap; each B grouting tap comprises three interfaces, wherein the upper end interface is communicated with a grouting tap hole of the upper cover through threads, and the lower end two interfaces are respectively communicated with a B grouting threaded pipe orifice through a communicating pipe.
Further, a fixing nut is fixedly arranged outside the grouting tap hole; the upper end interfaces of the grouting tap A and the grouting tap B are respectively provided with threads, and are fixed by being screwed with the fixing nut.
Further, a strip screw is welded on the base; the length of the strip screw is larger than the height of the grouting guide top box, and the top end of the strip screw extends out through the screw hole; the strip screw is matched with the corresponding nut through two screw holes on the inner side of the upper cover to be connected with the base and the upper cover in a locking manner.
Furthermore, the tail end of the lower part of the grouting plate page is in a knife shape.
Further, the A grout outlet threaded pipe orifice and the B grout outlet threaded pipe orifice are arranged at intervals.
Further, the grouting guide top box comprises a base, an upper cover and a grouting guide device which is arranged in the box body and used for guiding curing agent slurry into the grouting plate page.
Further, the using method of the piling device comprises the following steps:
and screwing the grouting tap into the fixing nuts at the holes of the grouting tap respectively. Then one end of the communicating pipe is respectively connected with the grouting tap, the other end is connected with a grouting threaded pipe orifice of the base, and then the grouting tap is screwed and fixed with a corresponding nut on the upper part of the top cover through a strip screw in the base;
the grouting plate pages are respectively connected with a grouting threaded pipe orifice at the lower part of the base through grouting threaded holes at the top;
the air pressure subsystem part is connected through a high-pressure air pipe and is tightly connected with a grouting tap at the upper part of the grouting guide device;
pressing the whole grouting platform subsystem into the sand body to form a cylindrical sand pile;
and after grouting is finished, taking out the whole grouting platform subsystem.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the pneumatic subsystem is adopted for pressurization, the grouting platform subsystem is inserted into sandy soil for solidification, the grouting device is rapid and convenient to use, good in solidification effect and high in efficiency, and the sand body is rapidly solidified into piles in an externally-added grouting mode, so that the capacity of bearing an externally-added load of the sand body is improved, and meanwhile, the sand body is prevented from collapsing and deforming excessively.
2. The invention is a simple screwing device, the grouting page plate can be connected with the grouting pipe orifice of the base part through a screw, and the connection among all parts in the grouting guide top box can be connected by utilizing a screw thread. The assembly is simple, and a set of device can be assembled quickly.
3. Because the grouting page plates are arranged in a circular ring shape, the curing agent can be quickly piled after penetrating the sand bodies in the curing page plates through the grout outlet holes
3. The invention adopts separate injection, and the two curing agents are respectively injected into the grouting page plates without mutual interference. And because the two curing agents are not mixed and stirred in the grouting page plate, the curing agents are not solidified into blocks after being mixed, and the cleaning can be fast.
4. The grouting page plates of the experiment are symmetrically arranged, and the page plates injected by the same curing agent are isolated, so that when the sand body in the device is cured, two adjacent curing agents are easier to mix, and the full curing after infiltration is facilitated.
Drawings
FIG. 1 is a schematic diagram of the construction of a grouting subsystem of the present invention;
FIG. 2 is a schematic view of the construction of a slip sheet of the present invention;
fig. 3 is an exploded view of the construction of the grouting guide top box of the present invention;
fig. 4 is a schematic diagram of the connection structure of the grouting platform subsystem and the pneumatic subsystem of the present invention.
In the figure: 1. grouting plate pages; 2. grouting to guide the top box; 3. a base; 4. an upper cover; 5. a, a slurry outlet threaded pipe orifice; 6. b, discharging the slurry from the threaded pipe orifice; 7. a communicating pipe; 8. a strip screw; 9. screw holes; 10. a corresponding nut; 11. grouting tap holes; 12. a grouting tap; 13. b grouting tap; 14. grouting small holes; 15. grouting threaded holes; 16. an air compressor; 17. a valve; 18. a high pressure gas delivery pipe; 20. a sealing tank; 21. and B, sealing the tank.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
In the description of the present embodiment, it should be noted that, if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are presented, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present embodiment and simplifying the description, and does not indicate or imply that the indicated apparatus or element must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present embodiment.
Embodiment one:
the embodiment provides a sand quick solidification grouting pile forming device, which comprises a grouting platform subsystem and a pneumatic subsystem;
the pneumatic subsystem is used for conveying curing agent slurry to the grouting platform subsystem;
the grouting platform subsystem can be inserted into sandy soil and used for conveying curing agent slurry into the sandy soil for grouting.
Specifically, the air pressure subsystem includes an air compressor 16, a high pressure air delivery line 18, and a seal pot;
the outlet of the air compressor 16 is connected with one end of a high-pressure air pipe 18; the other end of the high-pressure gas pipe 18 penetrates through the sealing tank to be communicated with the grouting platform subsystem; curing agent slurry is stored in the sealing tank; the air compressor 16 delivers the curing agent slurry in the seal pot to the grouting platform subsystem through a communicating high pressure air delivery pipe 18.
Note that the slurry delivery device of this embodiment may be powered by an air compressor 16, coupled with a grouting pump and a grouting pipe to force the slurry into the grouting platform subsystem.
Preferably, the air compressor 16 is provided with a valve 17 for controlling the start or stop of the air compressor 16, which is convenient for the operator.
And the grouting platform subsystem injects the curing agent slurry into the sandy soil, and rapidly forming piles in the loose sandy soil body.
The grouting platform subsystem comprises a grouting plate page 1 and a grouting guide top box 2. The inner side of the grouting plate page 1 is provided with a plurality of grouting small holes 14, so that grouting can be penetrated into sandy soil under grouting pressure. The top page of the grouting plate page 1 is provided with a grouting threaded hole 15, and the grouting plate page 1 is communicated with the grouting guide top box 2 through the grouting threaded hole 15 to receive curing agent slurry.
The grouting guide top box 2 comprises a base 3 and an upper cover 4, and a grouting guide device which is arranged in the box body and used for guiding curing agent slurry into the grouting plate page 1.
The upper cover 4 is respectively provided with a screw hole 9 and a grouting tap hole 11. Two strip screws 8 are welded on the base 3; the length of the strip screw 8 is larger than the height of the grouting guide top box 2, and the top end of the strip screw extends out through the screw hole 9; the strip screw 8 is matched with the corresponding nut 10 through two screw holes 9 on the inner side of the upper cover 4 to lock and connect the base 3 and the upper cover 4. Therefore, the connection can be ensured to be stable, and the disassembly and the cleaning are facilitated.
The base 3 is respectively welded with a grouting threaded pipe orifice at four corners, can be spirally fastened with the grouting plate page 1 for grouting, the upper end and the lower end of the grouting threaded pipe orifice are both provided with threads, the lower end of the grouting threaded pipe orifice is connected with the grouting plate page 1, and the upper end of the grouting threaded pipe orifice is higher than the base 3.
The grouting guide device comprises a grouting tap; each grouting tap is provided with three interfaces, wherein the upper end interface is communicated with a grouting tap hole 11 of the upper cover 4 through threads, and the lower end two interfaces are respectively communicated with a grouting threaded pipe orifice through a communicating pipe 7;
a fixing nut is fixedly arranged outside the grouting tap hole 11; the upper end of the grouting tap is provided with threads, and the upper end is fixed by screwing with a fixing nut.
Preferably, the tail end of the lower part of the grouting plate page 1 is in a cutter shape, so that the grouting plate page is convenient to cut into soil.
The device of the embodiment does not adopt a complete cylinder to peripherally enclose a sand soil body in a certain area, but adopts a plurality of page plates which are distributed according to a circle, thereby achieving the same effect. Specifically, the communicating pipe 7 can be a rubber pipe or a plastic pipe, and is convenient to use and easy to connect and clean.
The specific operation steps of the workflow comprise:
1. assembling the grouting guide device: the grouting taps are screwed into the fixing nuts at the grouting tap holes 11, respectively. And then one end of a communicating pipe 7 is respectively connected with a grouting tap, the other end of the communicating pipe is connected with a grouting threaded pipe orifice of the base 3, and then the grouting tap is screwed and fixed with a corresponding nut 10 on the upper part of the top cover through a strip screw 8 in the base 3.
2. And (3) assembling a grouting platform: the grouting plate pages 1 are respectively connected with the grouting threaded pipe orifices at the lower part of the base 3 through grouting threaded holes 15 at the top.
3. The air pressure subsystem part is connected through a high-pressure air pipe and is tightly connected with a grouting tap at the upper part of the grouting guide device.
In actual operation, the whole grouting platform subsystem is pressed into the sand body to form the cylindrical sand pile (the radius and the size can be adjusted according to actual needs and the size and the number of the grouting plate pages 1 are changed).
4. And after grouting is finished, taking out the whole grouting platform.
The curing agent slurry in this embodiment is a liquid curing agent, and may be a road-side ion soil curing agent, or a common liquid soil curing agent. But care should be taken to quickly grouting to prevent solidification in the high pressure gas line 18 and the seal pot.
The embodiment is a simple screwing device, the grouting page plate can be connected with the grouting pipe orifice of the base 3 part through a screw through the threaded connection among all parts, and the connection among all parts in the grouting guide top box 2 can be connected by utilizing the thread arrangement. The assembly is simple, and a set of device can be assembled quickly. Because the grouting page plates are arranged according to the circular ring shape, the curing agent can be quickly piled after penetrating the sand bodies in the curing page plates through the grout outlet holes.
Embodiment two:
the embodiment provides a sand quick solidification grouting pile forming device, which comprises a grouting platform subsystem and a pneumatic subsystem;
the pneumatic subsystem is used for conveying curing agent slurry to the grouting platform subsystem;
the grouting platform subsystem can be inserted into sandy soil and used for conveying curing agent slurry into the sandy soil for grouting.
The curing agent slurry of the embodiment is a two-component quick-hardening early-strength liquid curing agent, and comprises curing agent A-component slurry and curing agent B-component slurry, wherein the curing agent B-component is a liquid quick-hardening early-strength auxiliary agent, has a coagulation accelerating early-strength excitation effect, and is used for preparing quick-hardening early-strength curing soil, and has the advantages of quick setting time, high early strength, good fluidity, no need of whole-course paving, strong adaptability to foundation soil and the like.
Specifically, the air pressure subsystem includes an air compressor 16, a high pressure air delivery pipe 18, an A seal pot 20 and a B seal pot 21;
the outlet of the air compressor 16 is connected with one end of a high-pressure air pipe 18; the other end of the high-pressure gas pipe 18 penetrates through the sealing tank to be communicated with the grouting platform subsystem;
the A-component slurry of the curing agent is stored in the A-sealed tank 20, and the B-component slurry of the curing agent is stored in the B-sealed tank 21;
the air compressor 16 delivers the a-component slurry of the curing agent in the a-seal tank 20 and the B-component slurry in the B-seal tank 21 to the grouting platform subsystem respectively through a communication high pressure gas pipe 18.
Preferably, the air compressor 16 is provided with a valve 17 for controlling the start or stop of the air compressor 16, which is convenient for the operator.
Note that the slurry delivery device of this embodiment may be powered by an air compressor 16, coupled with a grouting pump and a grouting pipe to force the slurry into the grouting platform subsystem.
And the grouting platform subsystem respectively injects the A-component slurry and the B-component slurry into sandy soil, the A-component slurry and the B-component slurry are mixed in the sandy soil, and piles are formed rapidly in loose sandy soil.
The grouting platform subsystem comprises a grouting plate page 1 and a grouting guide top box 2.
The inner side of the grouting plate page 1 is provided with a plurality of grouting small holes 14, so that grouting can be penetrated into sandy soil under grouting pressure. The top page of the grouting plate page 1 is provided with a grouting threaded hole 15, and the grouting plate page 1 is communicated with the grouting guide top box 2 through the grouting threaded hole 15 to receive A-component slurry or B-component slurry.
The grouting guide top box 2 comprises a base 3, an upper cover 4, an A grouting guide device which is arranged in the box body and used for guiding A component slurry into the grouting plate page 1, and a B grouting guide device which is used for guiding B component slurry into the grouting plate page 1.
In this embodiment, separate injection is adopted, and the two curing agents are injected into the respective grouting plates respectively, so that the two curing agents do not interfere with each other. And because the two curing agents are not mixed and stirred in the grouting page plate, the curing agents are not solidified into blocks after being mixed, and the cleaning can be fast.
The upper cover 4 is respectively provided with two screw holes 9 and two grouting tap holes 11.
Two strip screws 8 are welded on the base 3; the length of the strip screw 8 is larger than the height of the grouting guide top box 2, and the top end of the strip screw extends out through the screw hole 9; the strip screw 8 is matched with the corresponding nut 10 through two screw holes 9 on the inner side of the upper cover 4 to lock and connect the base 3 and the upper cover 4. Therefore, the connection can be ensured to be stable, and the disassembly and the cleaning are facilitated.
The four corners of the base 3 are respectively welded with an A grouting threaded pipe orifice 5 and a B grouting threaded pipe orifice 6, which can be screwed tightly with the grouting plate page 1 for grouting, the upper end and the lower end of the A grouting threaded pipe orifice 5 and the lower end of the B grouting threaded pipe orifice 6 are both required to be threaded, the lower end is connected with the grouting plate page 1, and the upper end is required to be higher than the base 3.
The A grouting guide comprises an A grouting tap 12; each A grouting tap 12 is provided with three interfaces, wherein the upper end interface is communicated with a grouting tap hole 11 of the upper cover 4 through threads, and the lower end two interfaces are respectively communicated with an A grouting threaded pipe orifice 5 through a communicating pipe 7;
the B grouting guide device comprises a B grouting tap 13; each B-grouting tap 13 comprises three connectors, wherein the upper connector is communicated with the grouting tap hole 11 of the upper cover 4 through threads, and the lower two connectors are respectively communicated with the B-grouting threaded pipe orifice 6 through the communicating pipe 7.
A fixing nut is fixedly arranged outside the grouting tap hole 11; the upper end interfaces of the grouting tap 12A and the grouting tap 13B are respectively provided with threads, and are fixed by screwing with a fixing nut.
Preferably, the tail end of the lower part of the grouting plate page 1 is in a cutter shape, so that the grouting plate page is convenient to cut into soil.
Preferably, the A-outlet screw nozzle 5 and the B-outlet screw nozzle 6 are spaced apart, so that the outlet sheets of the A-component slurry and the B-component slurry are spaced apart. The slurry outlet plates of different curing agents of the device of the embodiment are arranged at intervals, so that the slurry is convenient to mix in soil.
The device of the embodiment does not adopt a complete cylinder to peripherally enclose a sand soil body in a certain area, but adopts a plurality of page plates which are distributed according to a circle, thereby achieving the same effect.
The grouting page plates of the embodiment are symmetrically arranged, and the page plates injected by the same curing agent are isolated, so that when the sand body in the device is cured, two adjacent curing agents are easier to mix, and the full curing after infiltration is facilitated.
In grouting, the device of the embodiment does not only carry out grouting through one device, but also adopts a method that different curing agent component slurries pass through different channels to carry out grouting.
Specifically, the communicating pipe 7 can be a rubber pipe or a plastic pipe, and is convenient to use and easy to connect and clean.
The concrete operation steps of the work flow of the sand quick solidification grouting pile forming device comprise:
1. assembling the grouting guide device: the a-grouting tap 12 and the B-grouting tap 13 are screwed into the fixing nuts at the grouting tap holes 11, respectively. And then one end of a communicating pipe 7 is respectively connected with an A grouting tap 12 and a B grouting tap 13, the other end of the communicating pipe is connected with an A grouting threaded pipe orifice 5 and a B grouting threaded pipe orifice 6 of the base 3, and then the communicating pipe is screwed and fixed with a corresponding nut 10 at the upper part of the top cover through a strip screw 8 in the base 3.
2. And (3) assembling a grouting platform: the grouting plate page 1 is respectively connected with an A grouting threaded pipe orifice 5 and a B grouting threaded pipe orifice 6 at the lower part of the base 3 through a grouting threaded hole 15 at the top.
3. The air pressure subsystem part is connected through a high-pressure air pipe and is tightly connected with an A grouting tap 12 and a B grouting tap 13 at the upper part of the grouting guide device.
In actual operation, the whole grouting platform subsystem is pressed into the sand body to form a cylindrical sand pile with the size (the radius and the size can be adjusted according to actual needs and the size and the number of the grouting plate pages 1 are changed to adjust). The two curing agent components a, B are poured into the a-seal tank 20 and the B-seal tank 21 in advance, pumped into the grouting plate page 1 by the air pressure subsystem, and infiltrated into the cylindrical sand body in the device by the grouting pressure.
4. And after grouting is finished, taking out the whole grouting platform.
The embodiment also provides a sand quick-curing grouting pile-forming method, which is based on the sand quick-curing grouting pile-forming device of the embodiment, and comprises the following steps: the grouting taps are screwed into the fixing nuts at the grouting tap holes 11, respectively. Then one end of the communicating pipe is respectively connected with the grouting tap, the other end is connected with a grouting threaded pipe orifice of the base, and then the grouting tap is screwed and fixed with a corresponding nut 10 on the upper part of the top cover through a strip screw 8 in the base; the grouting plate pages are respectively connected with a grouting threaded pipe orifice at the lower part of the base through grouting threaded holes at the top; the air pressure subsystem part is connected through a high-pressure air pipe and is tightly connected with a grouting tap at the upper part of the grouting guide device; pressing the whole grouting platform subsystem into the sand body to form a cylindrical sand pile; and after grouting is finished, taking out the whole grouting platform subsystem.
In addition, the present embodiment is only for illustration, and only a minimum number of grouting guiding devices and grouting plate pages 1 are used for illustration, and in the actual design process, the grouting plate pages 1 and grouting guiding devices can be added as much as possible to adapt to the actual requirements without violating the design principle of the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature, and in the description of the invention, "a plurality" means two or more, unless otherwise specifically and clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (6)
1. The sand soil rapid solidification grouting pile forming device is characterized by comprising a grouting platform subsystem and a pneumatic subsystem;
the air pressure subsystem is used for conveying curing agent slurry to the grouting platform subsystem;
the grouting platform subsystem can be inserted into sandy soil and is used for conveying curing agent slurry into the sandy soil for grouting;
the grouting platform subsystem comprises a grouting guide top box and a plurality of grouting plate pages symmetrically distributed under the grouting guide top box;
a plurality of grouting small holes are distributed on the inner side page of the grouting plate page, so that grouting can be carried out in the sandy soil under grouting pressure;
the top page of the grouting plate page is provided with a grouting threaded hole, and the grouting plate page is communicated with a grouting guide top box through the grouting threaded hole so as to receive curing agent slurry;
the grouting plate pages are communicated with a grouting guide top box through the grouting threaded holes so as to receive the slurry of the component A or the slurry of the component B;
the air pressure subsystem comprises an air compressor, a high-pressure air delivery pipe and a sealing tank;
the outlet of the air compressor is connected with one end of the high-pressure air pipe; the other end of the high-pressure gas pipe is communicated with the grouting platform subsystem through a sealing tank;
curing agent slurry is stored in the sealing tank;
the curing agent slurry is a two-component liquid curing agent and comprises curing agent A component slurry and curing agent B component slurry;
the sealed tank is divided into an A sealed tank and a B sealed tank;
the air compressor is communicated with the high-pressure gas pipe to respectively convey the A-component slurry of the curing agent in the A sealing tank and the B-component slurry in the B sealing tank to the grouting platform subsystem;
the grouting guiding top box comprises a base, an upper cover, an A grouting guiding device and a B grouting guiding device, wherein the A grouting guiding device is arranged in the box body and used for guiding A component slurry into a grouting plate page, and the B grouting guiding device is used for guiding B component slurry into the grouting plate page;
two screw holes and two grouting tap holes are respectively formed in the upper cover;
the four corners of the base are respectively welded with an A grouting threaded pipe orifice and a B grouting threaded pipe orifice which can be screwed tightly with a grouting plate page for grouting, the upper end and the lower end of the A grouting threaded pipe orifice and the lower end of the B grouting threaded pipe orifice are both required to be threaded, and the lower end of the A grouting threaded pipe orifice and the lower end of the B grouting threaded pipe orifice are required to be higher than the base; the A grout outlet threaded pipe orifice and the B grout outlet threaded pipe orifice are arranged at intervals;
the A grouting guide device comprises an A grouting tap; each grouting tap is provided with three interfaces, wherein the upper end interface is communicated with a grouting tap hole of the upper cover through threads, and the lower end two interfaces are respectively communicated with an A grouting threaded pipe orifice through a communicating pipe;
the B grouting guide device comprises a B grouting tap; each B grouting tap comprises three interfaces, wherein the upper end interface is communicated with a grouting tap hole of the upper cover through threads, and the lower end two interfaces are respectively communicated with a B grouting threaded pipe orifice through a communicating pipe.
2. A sand fast setting grouting pile forming device according to claim 1, characterised in that the air compressor is provided with a valve for controlling the air compressor to be turned on or off.
3. The sand quick setting grouting pile forming device according to claim 1, wherein a fixing nut is fixedly arranged outside the grouting tap hole; the upper end interfaces of the grouting tap A and the grouting tap B are respectively provided with threads, and are fixed by being screwed with the fixing nut.
4. A sand quick setting grouting pile forming device according to claim 3, wherein the base is welded with a long screw; the length of the strip screw is larger than the height of the grouting guide top box, and the top end of the strip screw extends out through the screw hole; the strip screw is matched with the corresponding nut through two screw holes on the inner side of the upper cover to be connected with the base and the upper cover in a locking manner.
5. The sand quick setting grouting pile forming device according to claim 1, wherein the lower tail end of the grouting plate page is in a knife shape.
6. A sand quick setting grouting pile forming device as claimed in claim 4, characterised in that the method of use of the pile forming device comprises the steps of:
screwing the grouting tap into fixing nuts at the holes of the grouting tap respectively, connecting one end of a communicating pipe with the grouting tap respectively, connecting the other end of the communicating pipe with a grouting threaded pipe orifice of a base, and screwing and fixing the grouting tap and the corresponding nuts at the upper part of the top cover through strip screws in the base;
the grouting plate pages are respectively connected with a grouting threaded pipe orifice at the lower part of the base through grouting threaded holes at the top;
the air pressure subsystem part is connected through a high-pressure air pipe and is tightly connected with a grouting tap at the upper part of the grouting guide device;
pressing the whole grouting platform subsystem into the sand body to form a cylindrical sand pile;
and after grouting is finished, taking out the whole grouting platform subsystem.
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| CN202111467921.5A CN114045834B (en) | 2021-12-03 | 2021-12-03 | Sand soil rapid solidification slip casting pile forming device |
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| CN202111467921.5A CN114045834B (en) | 2021-12-03 | 2021-12-03 | Sand soil rapid solidification slip casting pile forming device |
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Inventor after: Tan Yizhong Inventor after: Ma Linjian Inventor after: Duan Liqun Inventor after: Li Zeng Inventor after: Zhao Yuetang Inventor after: Xiong Ziming Inventor after: Liu Huachao Inventor after: Liu Jicheng Inventor after: Ma Peifeng Inventor before: Tan Yizhong Inventor before: Ma Peifeng Inventor before: Ma Linjian Inventor before: Liu Feng Inventor before: Duan Liqun Inventor before: Li Zeng Inventor before: Zhao Yuetang Inventor before: Xiong Ziming Inventor before: Liu Huachao Inventor before: Liu Jicheng |
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