CN210370589U - Sectional grouting device - Google Patents
Sectional grouting device Download PDFInfo
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- CN210370589U CN210370589U CN201921124037.XU CN201921124037U CN210370589U CN 210370589 U CN210370589 U CN 210370589U CN 201921124037 U CN201921124037 U CN 201921124037U CN 210370589 U CN210370589 U CN 210370589U
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Abstract
The utility model discloses a sectional grouting device, which comprises an orifice component, a grout stopping component and a grouting pipe; the orifice component comprises an orifice sleeve, a radial pipe and a pair of axial pipes, wherein one end of the orifice sleeve is provided with a flange blind plate, the sleeve wall is provided with a mounting hole, the axial pipe is connected in the flange blind plate, one end of the axial pipe extends into the orifice sleeve, and the radial pipe is connected outside the mounting hole; the slurry stopping assembly comprises an outer pipe, an inner pipe and a sectional mesh screen which are coaxially arranged, a through hole matched with the outer diameter of the inner pipe is formed in the center of the sectional mesh screen, the sectional mesh screen is connected into the outer pipe, and the inner pipe penetrates through the sectional mesh screen and extends out of the outer pipe to be connected with the outer pipe through a connecting rib; the slip casting pipe has a pair ofly, can dismantle respectively to be connected in a pair of axial pipe lower extreme, and the bottom and the inner tube intercommunication of one of them slip casting pipe. And selecting a grouting pipe with proper length according to the grout stopping position to ensure that the grout stopping assembly can extend to the position in the drill hole where grout is required to be stopped to lead out gushing water, then injecting double-liquid grout to form a grout stopping plug, finishing water diversion, pressure relief and grout stopping, and further realizing sectional grouting.
Description
Technical Field
The utility model belongs to the technical field of drilling construction equipment, especially, relate to a segmentation slip casting device.
Background
Gushing water can appear in the drilling construction process, especially deep hole, for reaching better slip casting effect, generally adopt and stop the thick liquid stopper to carry out sectional grouting to the drilling. However, for the engineering exploration hole with deep water outlet point, large water amount and high water head pressure, the common grout stopping plug is difficult to fall to the designed position, so that effective sectional grouting can not be carried out on the drilled hole, and further the grouting effect of the drilled hole is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, provide a segmentation slip casting device in worker's exploration hole that is applicable to the water outlet point dark, the water yield is big and head pressure is high.
The utility model provides a sectional grouting device, which comprises an orifice component, a grout stopping component and a grouting pipe; the orifice component comprises an orifice sleeve, a radial pipe and a pair of axial pipes, wherein one end of the orifice sleeve is provided with a flange blind plate, the sleeve wall is provided with a mounting hole, the axial pipe is connected in the flange blind plate, one end of the axial pipe extends into the orifice sleeve, and the radial pipe is connected outside the mounting hole; the slurry stopping assembly comprises an outer pipe, an inner pipe and a sectional mesh screen which are coaxially arranged, a through hole matched with the outer diameter of the inner pipe is formed in the center of the sectional mesh screen, the sectional mesh screen is connected into the outer pipe, and the inner pipe penetrates through the sectional mesh screen and extends out of the outer pipe to be connected with the outer pipe through a connecting rib; the slip casting pipe has a pair ofly, can dismantle respectively to be connected in a pair of axial pipe lower extreme, and the bottom and the inner tube intercommunication of one of them slip casting pipe.
In one embodiment, the orifice sleeve is a cylindrical sleeve, and the bottom end of the orifice sleeve is provided with a connecting flange to be connected with the orifice pipe; the flange blind plate is welded at the other end of the orifice sleeve, and a pair of through holes which are symmetrically arranged about the axial center are arranged in the flange blind plate.
Preferably, the radial pipe and the axial pipe are both seamless steel pipes; the inner end of the radial pipe is fixedly connected in the mounting hole, and the outer end of the radial pipe is provided with threads for connecting a pressure gauge; the middle part of the axial pipe is fixedly connected in the through hole of the flange blind plate, and both ends of the axial pipe are provided with external threads.
In order to facilitate connection, the top end of the inner pipe is provided with threads.
The two types of the grouting pipes are matched; one end of the grouting pipe is externally provided with a thread, and the grouting pipe is connected with the lower end of the corresponding axial pipe through the thread; and the other two ends are provided with threads and are connected between the corresponding axial pipe and the inner pipe through the threads of the screw threads.
Preferably, the segmented mesh screen is an annular steel wire mesh with the outer diameter matched with the inner diameter of the outer pipe; the connecting ribs are arranged in an annular array relative to the axial center of the outer pipe, the segmented mesh screen is connected with the upper end of the inner wall of the outer pipe through the connecting ribs, and the outer pipe is connected with the lower end of the inner pipe through the connecting ribs.
When the utility model is installed, two grouting pipes with different lengths are selected according to the grout stopping position, the longer grouting pipe connects the grout stopping component with the orifice component, the grout stopping component can extend to the position needing grout stopping in the drill hole after the orifice component is installed at the orifice pipe, the shorter grouting pipe is positioned above the grout stopping component, and then the orifice component is communicated with the external grouting pipe; after the installation is finished, water burst is led out through the inner pipe, the longer grouting pipe and the axial pipe, then cement-water glass double-liquid slurry is injected from the shorter grouting pipe until the pressure at the radial pipe is zero, at the moment, the double-liquid slurry is quickly solidified on the segmented net plug to form a 'slurry stopping plug', water diversion, pressure relief and slurry stopping are finished, and therefore the method is suitable for segmented grouting construction of an engineering exploration hole with deep water outlet point, large water quantity and high water head pressure.
Drawings
Fig. 1 is a schematic view of a preferred embodiment of the present invention in use.
Fig. 2 is an enlarged schematic view of the orifice assembly of fig. 1.
FIG. 3 is an enlarged schematic view of the stop assembly of FIG. 1.
Sequence numbers of the drawings:
1-orifice component, 11-orifice sleeve, 12-radial pipe, 13-axial pipe, 14-flange blind plate, and 15-connecting flange;
2-long grouting pipe;
3-short grouting pipe;
4-a pulp stopping component, 41-an outer pipe, 42-an inner pipe, 43-a segmented mesh screen, 44-a connecting rib;
5-orifice tube; 6-a pressure gauge; 7-connecting a grouting pipe externally; 8, threading;
9-drilling, 91-drilling water-gushing section.
Detailed Description
As shown in fig. 1, the present embodiment discloses a staged grouting device, which includes an orifice component 1, a long grouting pipe 2, a short grouting pipe 3 and a grout stopping component 4; both ends of the long grouting pipe 2 are external threads, and one end of the short grouting pipe is externally provided with threads.
As shown in fig. 1 and 2, the orifice assembly 1 includes an orifice housing 11, a radial tube 12, and a pair of axial tubes 13. The orifice sleeve 11 is a cylindrical sleeve, one end of the orifice sleeve is welded with a flange blind plate 14, the other end of the orifice sleeve is welded with a connecting flange 15, a pair of through holes are arranged in the flange blind plate 14, the two through holes are symmetrically arranged about the axial center of the flange blind plate, the outer wall of the orifice sleeve is provided with a radial hole, and the orifice sleeve is connected outside the orifice pipe 5 through the connecting flange. The radial pipe 12 is a seamless steel pipe, one end of the outer wall of the radial pipe is turned with threads, the polished rod end of the radial pipe is fixedly connected with the radial hole, and the threaded end is connected with the pressure gauge 6. The axial pipes 13 are seamless steel pipes, both ends of the outer wall of each axial pipe are provided with threads, the middle parts of the pair of axial pipes are fixedly connected with through holes of the flange blind plate respectively, the top ends of the pair of axial pipes extend to the orifice sleeve, the bottom ends of the pair of axial pipes are positioned in the orifice sleeve, the upper ends of the pair of axial pipes are communicated with the external grouting pipe 7 respectively through screw threads 8, the lower ends of the pair of axial pipes are connected with the long grouting pipe 2 and the short grouting pipe 3 respectively through screw threads, and the lower end of the long grouting pipe 2 is connected with the grout.
As shown in fig. 1, 3, the slurry stop assembly 4 includes an outer pipe 41, an inner pipe 42, and a segmented screen 43, which are coaxially arranged; the outer pipe 41 and the inner pipe 42 are seamless steel pipes, the outer wall of the top end of the inner pipe is externally provided with threads, and the bottom end of the inner pipe extends into a water burst section of the drill hole; the segmented mesh screen 43 is an annular steel wire mesh with the outer diameter matched with the inner diameter of the outer pipe, and a through hole matched with the outer diameter of the inner pipe is formed in the axial center of the annular steel wire mesh. A circle of connecting ribs 44 are arranged outside the annular steel wire mesh, the other side of each connecting rib is welded with the inner wall of the outer pipe, and the bottom ends of the connecting ribs extend below the outer pipe; the bottom end of the inner pipe penetrates through the through hole and then extends into the water gushing section of the drilling hole to be welded with the bottom end of the connecting rib; the inner pipe of the grout stopping component is connected with the long grouting pipe 2 through screw threads.
When the grouting device is used specifically, two grouting pipes with different lengths are selected according to the grout stopping position, the longer grouting pipe connects the grout stopping assembly with the orifice assembly, the orifice assembly is ensured to be arranged at the orifice pipe, then the grout stopping assembly can extend to the position needing grout stopping in the drill hole 9, the inner pipe extends into the water gushing section 91 of the drill hole, the shorter grouting pipe is positioned above the grout stopping assembly, and then the orifice assembly is communicated with the external grouting pipe; after the installation is finished, the inner pipe extends into a water gushing section of the drill hole, water gushing is led out through the inner pipe, the longer grouting pipe and the axial pipe, then cement-water glass double-liquid slurry is injected from the shorter grouting pipe until the pressure measured by a pressure gauge at the radial pipe is zero, the double-liquid slurry is quickly solidified on the segmented net plug to form a 'slurry stopping plug', water diversion, pressure relief and slurry stopping are finished, and therefore segmented grouting construction can be well carried out on the engineering exploration hole with deep water outlet point, large water quantity and high water head pressure.
Claims (6)
1. The utility model provides a segmentation slip casting device which characterized in that: the grouting device comprises an orifice component, a grout stopping component and a grouting pipe;
the orifice component comprises an orifice sleeve, a radial pipe and a pair of axial pipes, wherein one end of the orifice sleeve is provided with a flange blind plate, the sleeve wall is provided with a mounting hole, the axial pipe is connected in the flange blind plate, one end of the axial pipe extends into the orifice sleeve, and the radial pipe is connected outside the mounting hole;
the slurry stopping assembly comprises an outer pipe, an inner pipe and a sectional mesh screen which are coaxially arranged, a through hole matched with the outer diameter of the inner pipe is formed in the center of the sectional mesh screen, the sectional mesh screen is connected into the outer pipe, and the inner pipe penetrates through the sectional mesh screen and extends out of the outer pipe to be connected with the outer pipe through a connecting rib;
the slip casting pipe has a pair ofly, can dismantle respectively to be connected in a pair of axial pipe lower extreme, and the bottom and the inner tube intercommunication of one of them slip casting pipe.
2. The staged grouting device of claim 1, wherein: the orifice sleeve is a cylindrical sleeve, and a connecting flange is arranged at the bottom end of the orifice sleeve to be connected with the orifice pipe; the flange blind plate is welded at the other end of the orifice sleeve, and a pair of through holes which are symmetrically arranged about the axial center are arranged in the flange blind plate.
3. The staged grouting device of claim 2, wherein: the radial pipe and the axial pipe are seamless steel pipes; the inner end of the radial pipe is fixedly connected in the mounting hole, and the outer end of the radial pipe is provided with threads for connecting a pressure gauge; the middle part of the axial pipe is fixedly connected in the through hole of the flange blind plate, and both ends of the axial pipe are provided with external threads.
4. The sectional grouting device according to claim 3, wherein: the top end of the inner pipe is provided with threads.
5. The sectional grouting device according to claim 4, wherein: the grouting pipes are of two types; one end of the grouting pipe is externally provided with a thread, and the grouting pipe is connected with the lower end of the corresponding axial pipe through the thread; and the other two ends are provided with threads and are connected between the corresponding axial pipe and the inner pipe through the threads of the screw threads.
6. The staged grouting device of claim 1, wherein: the segmented mesh screen is an annular steel wire mesh with the outer diameter matched with the inner diameter of the outer pipe; the connecting ribs are arranged in an annular array relative to the axial center of the outer pipe, the segmented mesh screen is connected with the upper end of the inner wall of the outer pipe through the connecting ribs, and the outer pipe is connected with the lower end of the inner pipe through the connecting ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124037.XU CN210370589U (en) | 2019-07-18 | 2019-07-18 | Sectional grouting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921124037.XU CN210370589U (en) | 2019-07-18 | 2019-07-18 | Sectional grouting device |
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| Publication Number | Publication Date |
|---|---|
| CN210370589U true CN210370589U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921124037.XU Active CN210370589U (en) | 2019-07-18 | 2019-07-18 | Sectional grouting device |
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| CN (1) | CN210370589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153318A (en) * | 2021-05-25 | 2021-07-23 | 重庆大学 | Earth-rock mixture stratum grouting reinforcement device and grouting reinforcement method |
-
2019
- 2019-07-18 CN CN201921124037.XU patent/CN210370589U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153318A (en) * | 2021-05-25 | 2021-07-23 | 重庆大学 | Earth-rock mixture stratum grouting reinforcement device and grouting reinforcement method |
| CN113153318B (en) * | 2021-05-25 | 2023-10-24 | 重庆大学 | Grouting reinforcement device and grouting reinforcement method for earth-rock mixture stratum |
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