CN211898393U - Air bag for geological cavity drilling grouting - Google Patents
Air bag for geological cavity drilling grouting Download PDFInfo
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- CN211898393U CN211898393U CN202020202327.8U CN202020202327U CN211898393U CN 211898393 U CN211898393 U CN 211898393U CN 202020202327 U CN202020202327 U CN 202020202327U CN 211898393 U CN211898393 U CN 211898393U
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Abstract
The utility model discloses an air bag for geological cavity drilling grouting, which comprises a spherical elastic air bag, wherein the upper end of the spherical elastic air bag is connected with an elastic guide pipe communicated with the interior of the spherical elastic air bag; a plurality of pressure sensors are distributed on the outer surface of the spherical elastic air bag and connected with an external display. The utility model discloses can avoid the thick liquid to run off along hollow crack, can not change the filling state and the hydrogeological environment of underground nature of crack, simultaneously, still be convenient for judge the cavity and fill up completely, reduce the risk of collapsing.
Description
Technical Field
The utility model belongs to the technical field of geological exploration or geotechnical engineering reconnaissance, a gasbag, especially a geological cavity is gasbag for drilling slip casting are related to a gasbag for slip casting.
Background
Building the house building in the karst area, if the hole is found in the geological prospecting borehole, high-pressure grouting treatment needs to be carried out on the hole through the borehole.
In the high-pressure slip casting process, there are a lot of problems, mainly have: 1. during grouting, grout is easy to lose along a fracture channel, and meanwhile, the filling state of the fracture can be changed, so that the underground natural hydrogeological environment is changed, and other geological problems are caused. 2. The existing grouting filling mode is not good for identifying the grouting effect, namely, whether the cavity is filled up is not well judged, and if the cavity is not filled up, the hidden risks such as collapse can be caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a geology cavity drilling gasbag for slip casting. The utility model discloses can avoid the thick liquid to run off along hollow crack, can not change the filling state and the hydrogeological environment of underground nature of crack, simultaneously, still be convenient for judge the cavity and fill up completely, reduce the risk of collapsing.
The technical scheme of the utility model: an air bag for geological cavity drilling and grouting comprises a spherical elastic air bag, wherein the upper end of the spherical elastic air bag is connected with an elastic material guide pipe communicated with the interior of the spherical elastic air bag; a plurality of pressure sensors are distributed on the outer surface of the spherical elastic air bag and connected with an external display.
According to the air bag for drilling and grouting in the geological cavity, the pressure sensor is a sheet type pressure sensor and is tightly attached to the outer surface of the spherical elastic air bag.
In the air bag for geological cavity drilling and grouting, the pressure sensors are provided with three layers which are uniformly distributed on the upper part, the middle part and the lower part of the spherical elastic air bag.
In the air bag for geological cavity drilling and grouting, 2-3 pressure sensors are arranged on each layer and are uniformly distributed around the spherical elastic air bag, and the pressure sensors on adjacent layers are alternately arranged in a staggered manner.
According to the air bag for drilling and grouting the geological cavity, the hard flange plate is arranged at the top end of the elastic material guide pipe, and a plurality of fixing nails are distributed around the hard flange plate.
The number of the fixing nails of the air bag for drilling and grouting in the geological cavity is 2-4.
In the air bag for geological cavity drilling and grouting, the fixing nail is an L-shaped grabbing nail.
The utility model has the advantages that:
the utility model has the advantages that the spherical elastic air bag is arranged, and the slurry is filled through the elastic material guide pipe at the upper end after being sent into the cavity, and the slurry is wrapped on the spherical elastic air bag, so that the slurry is prevented from running off through the crack below the cavity, the change of the crack filling state is avoided, and the underground natural hydrogeological environment is protected; meanwhile, the spherical elastic air bag is used as a carrier, the pressure sensor is arranged on the outer surface of the spherical elastic air bag, the spherical elastic air bag is attached to the wall of the hole after grouting expansion, and the change of pressure is sensed by the external pressure sensor, so that whether the space of the hole is completely filled up by the grouting degree can be well judged, the hole is prevented from being left, and the risk of later-stage collapse is reduced; additionally, the utility model discloses a rationally set up pressure sensors's arrangement mode, the judged result is more accurate, and the effect is better.
Furthermore, the utility model discloses a set up tone quality ring flange and staple on the top of elasticity passage, with the top of elasticity passage firmly fix at the entrance to a cave of drilling during slip casting, avoid elasticity passage gliding influence slip casting.
Compared with the traditional perfusion mode, the utility model needs to additionally add devices such as air bags, pressure sensors and the like and add construction steps; however, the cost investment is negligible in relation to the cost of building construction. Most importantly, the utility model discloses guarantee to building safety after using is very big, is worth extensively promoting and applying very much.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a state diagram of the utility model in use.
Description of reference numerals: 1-spherical elastic air bag, 2-elastic material guide pipe, 3-pressure sensor, 4-external display, 5-hard flange plate and 6-fixing nail.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
The embodiment of the utility model provides a:
an air bag for geological cavity drilling and grouting, as shown in figure 1-2, comprises a spherical elastic air bag 1, wherein the upper end of the spherical elastic air bag 1 is connected with an elastic material guide pipe 2 communicated with the interior of the spherical elastic air bag 1; a plurality of pressure sensors 3 are distributed on the outer surface of the spherical elastic air bag 1, and the pressure sensors 3 are connected with an external display 4.
During construction, air in the spherical elastic air bag 1 and the elastic material guide pipe 2 is pumped out, the spherical elastic air bag 1 is sent into a cavity by a straight rod with a smaller diameter, the upper end of the elastic material guide pipe 2 stays at the hole of a drilled hole, the top end of the elastic material guide pipe 2 is fixed, and meanwhile, the pressure sensor 3 is connected with the external display 4 in a wireless or wired conventional mode; then inserting a grouting pipe of a grouting machine into the elastic material guide pipe 2, enabling slurry to enter the spherical elastic air bag 1, enabling the spherical elastic air bag 1 to be expanded continuously until the cavity is completely filled, wherein when the cavity is filled, the outer wall of the spherical elastic air bag 1 can be in contact with the cavity wall of the cavity and has larger extrusion force, at the moment, the pressure sensor 3 can feed back the pressure of a corresponding point to the external display 4, when the external display 4 displays that the pressure sensed by the pressure sensor 3 at a certain point does not reach the higher extrusion force, the point is proved to be a position with a gap, and the gap is not completely filled, at the moment, grouting needs to be continued until the sensing pressure of each pressure sensor 3 reaches a preset pressure value.
Preferably, the pressure sensor 3 is a sheet type pressure sensor, which is tightly attached to the outer surface of the spherical elastic airbag 1, and the sheet type pressure sensor is thin, so that a large gap is not formed between the hole wall and the spherical elastic airbag 1 after filling, and the using effect is better.
Preferably, the pressure sensor 3 has three layers, which are uniformly distributed on the upper, middle and lower parts of the spherical elastic airbag 1, and the three layers are designed to enable the pressure sensor 3 to fully sense the filling state of a plurality of areas in the longitudinal direction of the spherical elastic airbag 1, thereby improving the judgment capability.
Preferably, 2-3 pressure sensors 3 are arranged on each layer and uniformly distributed around the spherical elastic airbag 1, and the pressure sensors 3 on adjacent layers are alternately arranged in a staggered manner, so that the number of the pressure sensors 3 can be reduced, and the cost is reduced as much as possible.
Preferably, a hard flange 5 is arranged at the top end of the elastic material guide pipe 2, a plurality of fixing nails 6 are distributed around the hard flange 5, the hard flange 5 is designed to have an outer diameter larger than the bore diameter of the drilled hole and is used for fixing the pipe orifice of the elastic material guide pipe 2 to prevent the pipe orifice from moving downwards, and the fixing nails 6 are used for further improving the fixing effect.
Preferably, the number of the fixing nails 6 is 2 to 4.
Preferably, the fixing nail 6 is an L-shaped nail, and the L-shaped nail is directly driven into the ground when in use.
The above description is only for the purpose of illustrating the present invention and the appended claims, and the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (7)
1. The utility model provides a geology cavity drilling gasbag for slip casting which characterized in that: comprises a spherical elastic air bag (1), the upper end of the spherical elastic air bag (1) is connected with an elastic material guide pipe (2) communicated with the interior of the spherical elastic air bag; a plurality of pressure sensors (3) are distributed on the outer surface of the spherical elastic air bag (1), and the pressure sensors (3) are connected with an external display (4).
2. The geological void drilling grouting air bag of claim 1, wherein: the pressure sensor (3) is a sheet type pressure sensor and is tightly attached to the outer surface of the spherical elastic air bag (1).
3. The geological void drilling grouting air bag of claim 1, wherein: the pressure sensor (3) is provided with three layers which are uniformly distributed on the upper part, the middle part and the lower part of the spherical elastic air bag (1).
4. The geological void drilling grouting air bag of claim 3, wherein: 2-3 pressure sensors (3) are arranged on each layer and are uniformly distributed around the spherical elastic air bag (1), and the pressure sensors (3) on adjacent layers are alternately arranged in a staggered manner.
5. The geological void drilling grouting air bag of claim 1, wherein: the top end of the elastic material guide pipe (2) is provided with a hard flange (5), and a plurality of fixing nails (6) are distributed around the hard flange (5).
6. The geological void drilling grouting air bag of claim 5, wherein: the number of the fixing nails (6) is 2-4.
7. The geological void drilling grouting air bag of claim 5, wherein: the fixing nails (6) are L-shaped grabbing nails.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020202327.8U CN211898393U (en) | 2020-02-24 | 2020-02-24 | Air bag for geological cavity drilling grouting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020202327.8U CN211898393U (en) | 2020-02-24 | 2020-02-24 | Air bag for geological cavity drilling grouting |
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| Publication Number | Publication Date |
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| CN211898393U true CN211898393U (en) | 2020-11-10 |
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| CN202020202327.8U Active CN211898393U (en) | 2020-02-24 | 2020-02-24 | Air bag for geological cavity drilling grouting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356284A (en) * | 2021-06-23 | 2021-09-07 | 中国地质大学（武汉） | Rock slope locking section crack deformation monitoring device and arrangement method |
| CN113482035A (en) * | 2021-07-09 | 2021-10-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind power cylinder type foundation and air bag grouting construction method |
| CN114922156A (en) * | 2022-06-02 | 2022-08-19 | 民航机场规划设计研究总院有限公司 | Underground karst cave processing method and structure |
-
2020
- 2020-02-24 CN CN202020202327.8U patent/CN211898393U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356284A (en) * | 2021-06-23 | 2021-09-07 | 中国地质大学（武汉） | Rock slope locking section crack deformation monitoring device and arrangement method |
| CN113482035A (en) * | 2021-07-09 | 2021-10-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind power cylinder type foundation and air bag grouting construction method |
| CN113482035B (en) * | 2021-07-09 | 2022-11-18 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind power cylinder type foundation and air bag grouting construction method |
| CN114922156A (en) * | 2022-06-02 | 2022-08-19 | 民航机场规划设计研究总院有限公司 | Underground karst cave processing method and structure |
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