CN219137635U - Rotary drilling type grouting device and grouting device - Google Patents
Rotary drilling type grouting device and grouting device Download PDFInfo
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- CN219137635U CN219137635U CN202223382629.6U CN202223382629U CN219137635U CN 219137635 U CN219137635 U CN 219137635U CN 202223382629 U CN202223382629 U CN 202223382629U CN 219137635 U CN219137635 U CN 219137635U
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- grouting pipe
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- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 239000002689 soil Substances 0.000 claims abstract description 26
- 239000002002 slurry Substances 0.000 claims description 24
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000007569 slipcasting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 17
- 230000002787 reinforcement Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 13
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model relates to a rotary drilling type grouting device and a grouting device, wherein the rotary drilling type grouting device comprises a grouting pipe body, the lower end of the grouting pipe body is fixedly connected with a conical entity, and the upper part of the grouting pipe body is coaxially and fixedly connected with a hollow bolt head; the side wall of the grouting pipe body is provided with a plurality of first grouting holes; and a spiral sheet is fixed around the conical body or the grouting pipe body. The utility model can be matched with grouting equipment with a rotation function through the spiral drill type grouting device, so that the grouting device can be more conveniently pressed into various soil layers, and a dynamic grouting process of synchronous lifting and grouting is realized during grouting, thereby forming a high-quality continuous columnar grouting body and achieving a more ideal grouting reinforcement effect.
Description
Technical Field
The utility model relates to a rotary drilling type grouting device and a grouting device, and belongs to the technical field of foundation treatment.
Background
With the development of economic construction, the operation mileage of the subway tunnel is rapidly increased, the engineering construction of the adjacent subways is more and more, the engineering volume is larger and more, and the deformation and the damage which are difficult to neglect are brought to the subway tunnel. The subway lateral micro-disturbance grouting method is used as a process with small influence on surrounding environment, strong competitive performance and good reinforcement effect, and the frequency of the method used in subway tunnel deformation repair is higher and higher. Project construction in soft soil areas such as road engineering, embankment reinforcement, middle and low layer construction structures and the like generally requires reinforcement treatment of a foundation with a certain depth, and grouting reinforcement is an effective foundation treatment method.
The conventional method for repairing the lateral micro-disturbance grouting of the subway tunnel at present generally comprises the steps of firstly drilling through a terrace and a mixed filling layer by using specific equipment, then splicing grouting rods section by section on a grouting device, carrying out static pressure to the designed grouting depth of the soil layer through manpower or matched machinery, and carrying out grouting in the soil body through ground grouting equipment. Conventional subway lateral micro-disturbance grouting has the following defects: 1) The soil layer has poor applicability, and the problem that the grouting device cannot be pressed down in place often exists due to limited manpower or dead weight of equipment; 2) The slurry is too dispersed: the slurry easily forms uncontrollable slurry splitting channels in the soil, and the effects of uniformly reinforcing and compacting the soil body can not be achieved; 3) Grouting body continuity is poor: in order to maintain a certain grouting pressure, the conventional grouting means adopts a sectional lifting method, so that poor grouting continuity in the depth direction is easily caused, and the grouting effect is greatly influenced. In addition, the shallow foundation is reinforced by adopting the methods of gravel piles, CFG piles, precast piles and the like, however, the construction equipment of most of the reinforcing methods has higher requirements on construction sites, the construction process is relatively complex, the construction efficiency of part of the methods is relatively low, the problems of slurry, noise and surrounding environmental influence generated by construction cannot be ignored, and the requirements of the shallow foundation treatment method which is high-efficiency, convenient, economic and environment-friendly and is suitable for soft soil areas are urgent.
Disclosure of Invention
Aiming at the problems existing in the existing foundation treatment, the utility model provides a grouting device capable of directly entering a foundation soil body to perform continuous grouting in a rotary drilling mode, and solves the problems of insufficient grouting, large slurry discreteness and poor grouting repairing effect caused by difficult hard soil layer downward pressing in the conventional subway lateral micro-disturbance grouting construction; and provide an efficient reinforcing apparatus for soft soil area foundation treatment: through the screw drill type grouting device, the grouting device with the rotation function is matched, so that the grouting device can be pressed into various soil layers more conveniently, a dynamic grouting process of synchronous lifting and grouting is realized during grouting, a high-quality continuous columnar grouting body can be formed, and a more ideal grouting reinforcement effect is achieved.
The utility model adopts the following technical scheme:
the rotary drilling type grouting device comprises a grouting pipe body 1, wherein the lower end of the grouting pipe body 1 is fixedly connected with a conical entity, and the upper part of the grouting pipe body 1 is coaxially and fixedly connected with a hollow bolt head 3; the side wall of the grouting pipe body 1 is provided with a plurality of first grouting holes 2; a spiral sheet 4 is fixed around the conical body or the grouting pipe body 1.
Preferably, the spiral sheet 4 is fixed to the conical body.
Further, the outer diameter of the conical body is smaller than that of the grouting pipe body 1, and a flat chamfer is arranged around the bottom of the grouting pipe body 1.
Preferably, the spiral sheet 4 is fixed on the grouting pipe body 1, and a plurality of second grouting holes 2' communicated with the grouting pipe body 1 are formed in the side wall of the conical body.
Preferably, the different grouting holes 2 are not located on the same cross section.
Preferably, the grouting holes 2 are formed at the middle section of the grouting pipe body 1.
Preferably, the conical body and the grouting pipe body 1 are integrally formed.
Preferably, the length of the bolt head 3 is not smaller than the diameter of the grouting pipe body 1, and the bolt head 3 is used for being connected with a grouting rod with internal threads.
The grouting device comprises the grouting device, a grouting rod 6, a rotating device 7 and a lifting device 8; the lower end of the grouting rod 6 is in threaded connection with the bolt head 3, the upper end of the grouting rod passes through an inner hole of the rotary device, and the rotary device is controlled to hold the grouting rod 6 tightly and drive the grouting rod to rotate, so that the spiral sheet 4 on the rotary drilling type grouting device cuts soil.
Preferably, the device also comprises a power system, a power center console 10 and a slurry preparation and supply device 11; the power system provides power for the turning device 7, and the slurry preparation and supply device 11 is communicated with the grouting rod 6 through a flexible grouting hose 13.
The utility model has the beneficial effects that:
1) The drilling depth during grouting is easier to control;
2) The planar grouting body can be formed in the transverse direction through the spiral sheet, the slurry running phenomenon along a splitting channel in static grouting is prevented, more continuous columnar grouting bodies can be formed in the depth direction, the overall grouting bodies are good in integrity and high in strength, and the disturbance resistance capacity of the grouting bodies is obviously improved after the strength of the grouting bodies is formed;
3) The total amount of underground grouting is effectively controlled, so that project budget is controlled, engineering extra expenditure can be effectively saved, and good economic benefit is generated;
4) The foundation reinforcement method through rotary drilling grouting is more convenient in equipment and construction process, strong in adaptability to construction sites, higher in efficiency of non-perforated reinforcement mode, and free of slurry and excessive noise pollution.
Drawings
Fig. 1 is a schematic view of a rotary drill type grouting device in a first embodiment. Wherein (a) is a front view and (b) is a cross-sectional view.
Fig. 2 is a schematic view of a rotary drill type grouting device in a second embodiment. Wherein (a) is a front view and (b) is a cross-sectional view.
Fig. 3 is a schematic view of an apparatus for grouting using a rotary drill type grouting device.
In the figure, 1, a grouting pipe body, 2', a second grouting hole, 3, a bolt head, 4, a spiral sheet, 5, an inner cavity of a grouting device, 6, a grouting pipe, 7, a rotary device, 8, a lifting device, 9, a clean energy power system, 10, a power center console, 11, a slurry preparation and supply device, 12, a slurry center console, 13, a flexible grouting hose, 14, a splice joint connecting the grouting pipe and an uppermost grouting rod, 15, a supporting platform, 16, wheels, 17, foundation soil and 18, and a rotary drill grouting device.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples.
Embodiment one:
first, the respective components of the rotary drilling type grouting device are described separately, referring to fig. 1, in which:
1 is a grouting pipe body, which is a hollow pipe with a certain wall thickness, and the diameter and the pipe length can be customized according to specific grouting requirements.
2 are grouting holes arranged on the grouting pipe body, the diameters and the number of the grouting holes are matched with grouting parameters, and the grouting holes are prevented from being arranged on the same cross section as much as possible, so that the grouting pipe body is ensured to have enough strength. The grouting holes in embodiment 1 are formed in the middle section of the grouting device, and the grouting holes in embodiment 2 are formed in the end part of the grouting device, so that the grouting liquid can flow out more conveniently.
And 3 is a bolt head above the grouting pipe body, the length of the bolt head is not smaller than the diameter of the grouting pipe body so as to ensure the rigidity and stability of the connecting position, and the bolt head is used for being connected with a grouting rod with internal threads.
And 5 is the inner cavity of the grouting device.
Referring to fig. 3, in which:
and 18 is the rotary drilling grouting device.
And 6, the grouting rod is a hollow pipe with a certain wall thickness, the inner diameter, the outer diameter and the end threads of the grouting rod are matched with the grouting device, the grouting rod is connected with the grouting device firstly, then the grouting rods are spliced section by section, and grouting equipment is used for rotary drilling and pressing down the grouting rod to enable the grouting device to extend into the preset soil layer depth. The grouting bar needs to have sufficient strength and durability.
7 is a turning device, the grouting device and the grouting rod pass through an inner hole of the turning device, and the grouting rod can be held tightly and driven to rotate by controlling the turning device, so that the spiral sheet on the end grouting device can effectively cut soil.
8 is a lifting device, and when the grouting device is sent into the soil layer, the lifting device drives the rotating device, so that the grouting rod and the grouting device at the lower end of the grouting rod realize the process of pressing down while rotating. When the grouting device reaches the bottom of the preset grouting depth, the lifting device drives the rotating device, so that the grouting rod and the grouting device at the lower end of the grouting rod realize the process of lifting and grouting while rotating.
9 is a clean energy power system that powers the entire grouting apparatus, the clean energy source including but not limited to electricity, hydrogen energy.
And 10 is a power center console, which mainly controls the walking of a rotating device, a pressure lifting device and grouting equipment.
11 is a slurry preparation and supply device which can realize stirring and preparation of slurry and provide sufficient stable slurry for grouting construction.
13 is a flexible grouting hose, the grouting pipe should be of sufficient length and be able to withstand the slurry pressure of the maximum grouting pressure for a long period of time without being destroyed, in particular without being subjected to a form of destruction in which sudden chipping occurs.
14 are splice joints connecting the grouting pipe 12 and the uppermost grouting bar, which are required to ensure sufficient strength and have sufficient sealing with the grouting pipe and the uppermost grouting bar.
15 is the supporting platform of grouting equipment, mainly provides sufficient support for the equipment of installing above that to and the connection of whole automobile body, and set up the hole of certain size in the middle part position, conveniently grouting rod passes wherein in the soil body.
And 16 is a wheel of the grouting equipment, and the tire of the wheel is a special high-toughness rubber tire, so that the grouting equipment can adapt to enough terrains.
And 17 is foundation soil, and grouting reinforcement is needed for the foundation soil.
Referring to fig. 1, the rotary drilling type grouting device comprises a grouting pipe body 1, wherein the lower end of the grouting pipe body 1 is fixedly connected with a conical entity, and the upper part of the grouting pipe body 1 is coaxially and fixedly connected with a hollow bolt head 3; the side wall of the grouting pipe body 1 is provided with a plurality of first grouting holes 2; a spiral sheet 4 is fixed around the conical body.
In this embodiment, the outer diameter of the conical body is smaller than the grouting pipe body 1, and a flat chamfer is arranged around the bottom of the grouting pipe body 1.
In this embodiment, the different grouting holes 2 are not located on the same cross section.
In this embodiment, the grouting holes 2 are formed in the middle section of the grouting pipe body 1.
In this embodiment, the conical body and the grouting pipe body 1 are integrally formed.
In this embodiment, the length of the bolt head 3 is not smaller than the diameter of the grouting pipe body 1 to ensure rigidity and stability of the connection position, and the bolt head is used for connecting with a grouting rod with internal threads. The bolt head 3 is used for connecting with a grouting rod with internal threads.
Referring to fig. 3, the grouting device comprises the grouting device, a grouting rod 6, a turning device 7 and a pressure lifting device 8; the lower end of the grouting rod 6 is in threaded connection with the bolt head 3, the upper end of the grouting rod passes through an inner hole of the rotary device, and the rotary device is controlled to hold the grouting rod 6 tightly and drive the grouting rod to rotate, so that the spiral sheet 4 on the rotary drilling type grouting device cuts soil.
In this embodiment, the device also comprises a power system, a power center console 10 and a slurry preparation and supply device 11; the power system provides power for the turning device 7, and the slurry preparation and supply device 11 is communicated with the grouting rod 6 through a flexible grouting hose 13.
The using method of the grouting equipment comprises the following steps:
s1, lofting a hole site to be grouted by adopting means of RTK, GPS, total station and the like on site;
s2, controlling grouting equipment to move to the position above the grouting hole through a power center console 10, and enabling the center hole of the rotary equipment 8 to be aligned with the grouting point on the ground;
s3, filling a certain bentonite plugging hole in the grouting device 18, connecting the grouting device 18 with a certain number of grouting rods 6, penetrating the grouting rods into the rotary equipment 7 and clamping the grouting rods, operating the power center console 10, enabling the power equipment 9 to provide power for the pressure lifting device 8 and the rotary equipment 7, and driving the grouting rods 6 and the grouting devices 18 to rotate downwards into a soil layer;
s4, installing grouting rods 6 section by section, and gradually conveying a grouting device 18 to the bottom of the designed grouting depth of the soil layer 17 through rotary equipment;
s5, after the grouting device 18 drills in place, stopping turning and pressing down, and tightly connecting the grouting pipe 13 with the upper end of the uppermost grouting rod by adopting the splice 14, so as to ensure the tightness of the grouting pipe;
s6, adopting a slurry preparation and supply device 11 to prepare slurry, setting grouting parameters through a slurry center console 12 after the preparation is finished, then starting grouting, opening a plug by pressure, and flushing bentonite in a grouting device 18 into soil by pressure;
s7, continuously rotating the upper grouting rod and synchronously grouting according to the established grouting pressure, slurry flow, grouting rod rotation rate, lifting rate and the like until grouting is completed;
s8, when grouting is completed, stopping grouting through the slurry center console 12, gradually releasing grouting pressure, removing the splice 14 after the pressure is completely released, and continuously pulling out the rest grouting rods and the grouting device through the rotary equipment;
s9, flushing the grouting rod 6 and the grouting device 18, checking the equipment, and then moving the grouting equipment to the next grouting hole site for operation.
Embodiment two:
referring to fig. 2 and 3, the present embodiment is different from the first embodiment in that:
the spiral sheet 4 is arranged in the middle of the grouting pipe body 1 and is fixed on the grouting pipe body 1. The connection of the screw 4 to the grouting pipe 1 is sufficiently firm. The side wall of the conical body is provided with a plurality of second grouting holes 2' communicated with the grouting pipe body 1.
The rest is the same as the first embodiment.
The foregoing is a preferred embodiment of the present utility model, and various changes and modifications may be made therein by those skilled in the art without departing from the general inventive concept, and such changes and modifications should be considered as falling within the scope of the claimed utility model.
Claims (10)
1. The utility model provides a rotary drill type grouting device, includes slip casting body (1), its characterized in that:
the lower end of the grouting pipe body (1) is fixedly connected with a conical entity, and the upper part of the grouting pipe body (1) is coaxially and fixedly connected with a hollow bolt head (3);
the side wall of the grouting pipe body (1) is provided with a plurality of first grouting holes (2);
a spiral sheet (4) is fixed around the conical body or the grouting pipe body (1).
2. The rotary drill grouting device according to claim 1, wherein: the spiral piece (4) is fixed on the conical entity.
3. The rotary drill grouting apparatus as recited in claim 2, wherein: the outer diameter of the conical entity is smaller than that of the grouting pipe body (1), and a flat chamfer is arranged around the bottom of the grouting pipe body (1).
4. The rotary drill grouting device according to claim 1, wherein: the spiral sheet (4) is fixed on the grouting pipe body (1), and a plurality of second grouting holes (2') communicated with the grouting pipe body (1) are formed in the side wall of the conical entity.
5. The rotary drill grouting device according to claim 1, wherein: different grouting holes (2) are not located on the same cross section.
6. The rotary drill grouting device according to claim 1, wherein: the grouting hole (2) is arranged at the middle section of the grouting pipe body (1).
7. The rotary drill grouting device according to claim 1, wherein: the conical entity and the grouting pipe body (1) are of an integrally formed structure.
8. The rotary drill grouting device according to claim 1, wherein: the length of the bolt head (3) is not smaller than the diameter of the grouting pipe body (1), and the bolt head (3) is used for being connected with a grouting rod with internal threads.
9. A grouting device, characterized in that: comprising the grouting device according to any one of claims 1-8, further comprising a grouting rod (6), a swivel device (7), a pressure raising device (8); the lower end of the grouting rod (6) is in threaded connection with the bolt head (3), the upper end of the grouting rod penetrates through an inner hole of the rotary device, the rotary device is controlled to hold the grouting rod (6) tightly and drive the grouting rod to rotate, and the spiral sheet (4) on the rotary drilling type grouting device cuts soil.
10. The grouting apparatus of claim 9, wherein: the device also comprises a power system, a power center console (10) and a slurry preparation and supply device (11); the power system provides power for the rotating device (7), and the slurry preparation and supply device (11) is communicated with the grouting rod (6) through a flexible grouting hose (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223382629.6U CN219137635U (en) | 2022-12-16 | 2022-12-16 | Rotary drilling type grouting device and grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223382629.6U CN219137635U (en) | 2022-12-16 | 2022-12-16 | Rotary drilling type grouting device and grouting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219137635U true CN219137635U (en) | 2023-06-06 |
Family
ID=86592874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223382629.6U Active CN219137635U (en) | 2022-12-16 | 2022-12-16 | Rotary drilling type grouting device and grouting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219137635U (en) |
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2022
- 2022-12-16 CN CN202223382629.6U patent/CN219137635U/en active Active
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Address after: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee after: Shanghai Survey, Design and Research Institute (Group) Co.,Ltd. Address before: 200093 No. 38 Shui Feng Road, Yangpu District, Shanghai. Patentee before: SGIDI ENGINEERING CONSULTING (Group) Co.,Ltd. |