CN215669522U - Water outlet reinforcing device for drill hole sleeve - Google Patents
Water outlet reinforcing device for drill hole sleeve Download PDFInfo
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- CN215669522U CN215669522U CN202122225050.8U CN202122225050U CN215669522U CN 215669522 U CN215669522 U CN 215669522U CN 202122225050 U CN202122225050 U CN 202122225050U CN 215669522 U CN215669522 U CN 215669522U
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- sealing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 86
- 238000005553 drilling Methods 0.000 claims abstract description 19
- 230000002787 reinforcement Effects 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 22
- 238000003825 pressing Methods 0.000 claims description 10
- 238000007569 slipcasting Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000011295 pitch Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000004140 cleaning Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model relates to a water outlet reinforcing device for a drill hole sleeve. In order to overcome the defects of the prior art, the water outlet reinforcing device of the drilling sleeve comprises a grouting pipe, wherein a plurality of grouting holes are formed in the side wall of the middle section of the grouting pipe, and the water outlet reinforcing device is characterized in that: the grouting pipe is characterized in that a drainage pipe penetrates through the grouting pipe, the upper and lower grouting ports and the drainage pipe are respectively sealed through a conical pipe-shaped or annular sealing plate, the upper portion of the grouting pipe is fixedly connected with two outer convex rings, an expandable sealing sleeve is arranged between the two outer convex rings, the axial line of the grouting pipe and the axial line of the drainage pipe are overlapped and are divided into a plurality of sections, and the adjacent upper and lower sections are respectively connected through sealing pipe threads. The water outlet reinforcing device for the drilling sleeve is simple in structure, convenient to use and suitable for rapid grouting reinforcement and plugging of water inrush drilling.
Description
Technical Field
The utility model relates to a water outlet reinforcing device for a drill hole sleeve.
Background
At present, in the construction process of building tunnels such as highways and subways or drilling and the like in mines, a confined water stratum is treated by adopting an advanced grouting sealing method, drilling is firstly carried out to form holes, and then a grouting pipe is placed for grouting. Because of the pressure bearing property of underground water and the need of manual sealing of grouting holes when drilling into a pore-forming process, the leakage can not be blocked in time when drilling into a pressure-bearing water layer, so that the phenomenon of surging occurs, safety accidents are caused, and the construction quality is influenced. In the aspect of sealing, scholars at home and abroad research a chemical automatic sealing device for sealing, but the reaction time is too long, and the effect is unstable and unobvious. Therefore, there is a strong need in the art for a borehole casing water outlet reinforcement device.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a drill hole casing water outlet reinforcing device.
For solving above-mentioned technical problem, this drilling sleeve goes out water reinforcing apparatus includes the slip casting pipe, and it has a plurality of injected holes, its characterized in that to open on this slip casting pipe middle section lateral wall: a drainage tube is arranged in the grouting tube in a penetrating manner, the upper and lower ports of the grouting tube and the drainage tube are respectively sealed by a conical tube-shaped sealing plate or a circular ring-shaped sealing plate, the upper part of the grouting tube is fixedly connected with two outer convex rings, an expandable sealing sleeve is arranged between the two outer convex rings, the upper and lower edges of the expandable sealing sleeve are respectively provided with inward flanges, the inner sides of the flanges are respectively provided with a ring pressing plate, the two outer convex rings and the ring pressing plate are respectively provided with opposite axial through holes, each opposite axial through hole is internally provided with a fixing bolt, the fixing bolts penetrate through the flanges and then tightly fix the ring pressing plate, the flanges and the outer convex rings together, the bottom of the grouting tube is provided with a slurry inlet tube, a sealing rubber sleeve is arranged above the slurry inlet tube, the grouting holes are uniformly and densely distributed on the side wall of the grouting tube between the outer convex ring at the top of the grouting tube and the sealing rubber sleeve, and the outer diameters of the two outer convex rings are less than or equal to the inner diameter of a drilling hole to be reinforced, the sealing rubber sleeve can be inserted into the lower opening of the drill hole to be reinforced along with the grouting pipe, the outer surface of the sealing rubber sleeve is in water sealing with the inner wall of the lower opening of the drill hole to be reinforced, the expandable sealing sleeve is pressed and expanded when the slurry inlet pipe performs grouting, the outer circumferential surface of the expandable sealing sleeve is in water sealing with the inner wall of the drill hole to be reinforced, the axial lead of the grouting pipe and the axial lead of the drainage pipe are superposed and divided into a plurality of sections, the adjacent upper section and the lower section are respectively connected through threads, the thread pitches of the upper section and the lower section are the same, the top section grouting pipe and the top section drainage pipe are welded together through the conical pipe-shaped sealing plate, the bottom section grouting pipe and the bottom section drainage pipe are also welded together through the conical pipe-shaped sealing plate, and the middle section grouting pipe and the drainage pipe are separated from each other.
So design, at slip casting reinforcement in-process, gush water the big part in the drilling and draw forth through the drainage tube, the water yield through the gap between slip casting pipe and the drilling greatly reduces, has reduced the washing away of flowing water to thick liquids for thick liquids solidify more easily.
Preferably, a valve is arranged at the lower end of the drainage pipe, and the length of the grouting pipe is less than or equal to the length of the extension of the drill hole to be reinforced in the water-resisting layer of the top plate. So design, slip casting solidification back as long as close drainage tube lower extreme valve, can make drilling stop out water, and is very convenient.
Optimally, the wall thickness of the side wall of the grouting pipe is 8mm, and the length of the grouting pipe is more than or equal to 24.2 m. So design, practice proves that above-mentioned wall thickness, above-mentioned length, the slip casting is consolidated effectually.
Preferably, the device also comprises a plurality of matched sealing rubber sleeves, and the matched sealing rubber sleeves can be sleeved on the bottom section grouting pipe above the sealing rubber sleeves according to requirements and seal redundant grouting holes which cannot enter the drilled holes and are formed in the bottom section grouting pipe. By the design, in the using process, the lengths of the grouting pipe and the drainage pipe can be roughly adjusted and the grouting pipe and the drainage pipe can pass through by controlling the number of the middle section drainage pipe and the middle section grouting pipe.
The use method of the drilling casing water outlet reinforcing device comprises the following steps:
taking out the drill rod and the drill bit in the to-be-reinforced drill hole with water inrush;
selecting the top section grouting pipe, the drainage pipe, the bottom section grouting pipe and the drainage pipe, selecting a proper number of middle section grouting pipes and middle section drainage pipes according to the total length of the drill rod when water burst occurs in the drilled hole, selecting a proper number of the matched sealing rubber sleeves, roughly adjusting the lengths of the grouting pipes and the drainage pipes by controlling the numbers of the middle section drainage pipes and the middle section grouting pipes, and plugging redundant grouting holes above the grouting pipes by using a proper number of the sealing rubber sleeves to ensure that the length of the grouting pipes is less than or equal to 24.2m and less than or equal to the length of the drilled hole to be reinforced extending in a water-resisting layer of the top plate;
thirdly, inserting the top section grouting pipe and the top section drainage pipe into the drill hole to be reinforced from bottom to top, inserting the lower end of the top section grouting pipe into the drill hole to be reinforced, respectively screwing the upper middle section grouting pipe and the lower middle section grouting pipe into the drill hole to be reinforced, then inserting the top section grouting pipe and the top section drainage pipe from bottom to top, inserting the lower end of the top section grouting pipe into the drill hole to be reinforced, respectively screwing the upper middle section grouting pipe and the lower middle section drainage pipe into the drill hole to be reinforced, repeating the steps until all selected middle section drainage pipes and middle section grouting pipes are screwed,
selecting all matched sealing rubber sleeves, sequentially sleeving the matched sealing rubber sleeves on the bottom section grouting pipe, enabling the sealing rubber sleeves and all matched sealing rubber sleeves to be squeezed tightly, then ensuring that a valve at the lower end of the drainage pipe is in an open state, respectively aligning the bottom section drainage pipe and the bottom section grouting pipe to the lowest end of the middle section drainage pipe and the lowest end of the middle section grouting pipe in the third step, and completing the screwed connection of the whole grouting pipe and the drainage pipe,
inserting the bottom section grouting pipe upwards into the drill hole to be reinforced, and tightly combining the sealing rubber sleeve or the matched sealing rubber sleeve with the inner wall of the lower port of the drill hole to be reinforced,
sixthly, connecting the slurry inlet pipe with an outlet pipe of a matched grouting machine, starting the grouting machine to inject reinforcing slurry into the grouting pipe, extruding the reinforcing slurry into a gap between the hole wall of the drill hole to be reinforced in the water-resisting layer of the top plate and the grouting pipe and a rock mass crack of the drill hole to be reinforced in the water-resisting layer of the top plate through a grouting hole, forcing an expandable sealing sleeve to be tightly combined with the hole wall of the drill hole to be reinforced at the uppermost end of the water-resisting layer, preventing water of the water-bearing layer from entering the drill hole of the water-resisting layer, maintaining pressure until the reinforcing slurry is solidified, and finishing the reinforcement of the drill hole to be reinforced,
and seventhly, finally closing a valve at the lower end of the drainage tube and cleaning accumulated water and sludge below the drainage tube.
The reinforcing slurry is preferably a single-fluid cement slurry or a cement-water glass two-fluid slurry.
The water outlet reinforcing device for the drilling sleeve is simple in structure, convenient to use and suitable for rapid grouting reinforcement and plugging of water inrush drilling.
Drawings
FIG. 1 is a schematic view of a partial cross-sectional structure of a water outlet reinforcing device of a borehole casing according to the present invention (a section is taken along a plane passing through an axial center line through a grouting pipe, an outer convex ring, an expandable sealing sleeve and a slurry inlet pipe);
fig. 2 is an exploded schematic view of the utility model of the drilled casing water outlet reinforcing device shown in fig. 1 (a middle section grouting pipe and a middle section drainage pipe are respectively reserved with one section, and the rest are omitted);
fig. 3 is a structural diagram of a using state of the water outlet reinforcing device of the drilling casing shown in fig. 1.
In the figure: the device comprises a grouting pipe 1, a top section grouting pipe 101, a bottom section grouting pipe 102, a middle section grouting pipe 103, a grouting hole 2, a drainage pipe 3, a top section drainage pipe 301, a bottom section drainage pipe 302, a middle section drainage pipe 303, a conical sealing plate 4, a valve 5, a top plate 6, a water-resisting layer 7, a water-containing layer 8, an outer convex ring 11, an expandable sealing sleeve 12, a flanging 121, an annular pressing plate 13, a fixing bolt 14, a slurry inlet pipe 15, a sealing rubber sleeve 16, an outer convex ring 11 outer diameter D1 and a drilled hole inner diameter D2.
Detailed Description
The first implementation mode comprises the following steps: as shown in fig. 1-3, the water outlet reinforcing device for the drill casing of the utility model comprises a grouting pipe 1, wherein a plurality of grouting holes 2 are formed on the side wall of the middle section of the grouting pipe 1, and the water outlet reinforcing device is characterized in that: a drainage tube 3 is further arranged in the grouting tube 1 in a penetrating manner, a conical sealing plate 4 (certainly, a circular sealing plate can be used to replace the conical sealing plate 4, but not limited) is arranged between the upper and lower ports of the grouting tube 1 and the drainage tube 3, the upper portion of the grouting tube 1 is fixedly connected with two outer convex rings 11, an expandable sealing sleeve 12 is arranged between the two outer convex rings 11, inward flanges 121 are respectively arranged on the upper and lower edges of the expandable sealing sleeve 12, ring pressing plates 13 are respectively arranged on the inner sides of the flanges 121, opposite axial through holes are respectively arranged on the two outer convex rings 11 and the ring pressing plates 13, a fixing bolt 14 is respectively arranged in each opposite axial through hole in a penetrating manner, after the fixing bolts 14 penetrate through the flanges 121, the ring pressing plates 13, the flanges 121 and the outer convex rings 11 are tightly fixed together, a slurry inlet tube 15 is arranged at the bottom of the grouting tube 1, a sealing rubber sleeve 16 is arranged above the slurry inlet tube 15, the grouting holes 2 are uniformly and densely distributed on the side wall of the grouting pipe 1 between the outer convex rings 11 at the top of the grouting pipe 1 and the sealing rubber sleeve 16, the outer diameters D1 of the two outer convex rings 11 are not more than the inner diameter D2 of a drill hole to be reinforced, the sealing rubber sleeve 16 can be inserted into the lower opening of the drill hole to be reinforced along with the grouting pipe 1, the outer surface of the sealing rubber sleeve 16 is sealed with the inner wall of the lower opening of the drill hole to be reinforced in a water-tight manner, the outer surface of the expandable sealing sleeve 12 is expanded under pressure when grouting slurry 15, the outer circumferential surface of the sealing sleeve is sealed with the inner wall of the drill hole to be reinforced in a water-tight manner, the axial lead of the grouting pipe 1 and the axial lead of the drainage pipe 3 are superposed, the two sections are preferably connected through threads of the sealing pipe with good sealing performance, the screw pitches of the two sections are the same, the top section grouting pipe 101 and the top section drainage pipe 301 are welded together through the tapered sealing plate 4, the bottom grouting pipe 102 and the bottom drainage pipe 302 are also welded together through the conical sealing plate 4, and the middle grouting pipes 103 and the middle drainage pipes 303 are separated from each other. The lower end of the drainage tube 3 is provided with a valve 5, and the length of the grouting tube 1 is less than or equal to the length of the drill hole to be reinforced extending in a water-resisting layer 7 of the top plate 6. The wall thickness of the side wall of the grouting pipe 1 is 8mm, and the length of the grouting pipe is more than or equal to 24.2 m.
The device also comprises a plurality of matched sealing rubber sleeves (the structure of the matched sealing rubber sleeves is the same as that of the sealing rubber sleeve 16, and the figure is omitted), and the matched sealing rubber sleeves can be sleeved on the bottom section 102 grouting pipe 1 above the sealing rubber sleeve 16 according to the requirement and seal redundant grouting holes 2 which cannot enter the drilled holes and are arranged on the bottom section grouting pipe 1.
The use method of the drilling casing water outlet reinforcing device comprises the following steps:
taking out the drill rod and the drill bit (not shown in the figure) in the drill hole to be reinforced, wherein water inrush occurs;
taking the top section grouting pipe 101, the top section drainage pipe 301, the bottom section grouting pipe 102 and the top section drainage pipe 301, selecting a proper number of middle section grouting pipes 103 and middle section drainage pipes 303 according to the total length of the drill rod when water burst occurs in the drilled hole, selecting a proper number of matched sealing rubber sleeves, roughly adjusting the lengths of the grouting pipes 1 and the drainage pipes 3 by controlling the number of the middle section drainage pipes 303 and the middle section grouting pipes 103, and plugging redundant grouting holes 2 above the grouting pipes by using a proper number of sealing rubber sleeves to ensure that the length of the grouting pipe 1 is not less than 24.2m and not more than the length of the drilled hole to be reinforced, which extends in the water-resisting layer 7 of the top plate 6;
thirdly, inserting the top grouting pipe 101 and the top drainage pipe 301 into the drill hole to be reinforced from bottom to top, inserting the lower end of the top grouting pipe into the drill hole to be reinforced, screwing the upper middle grouting pipe 103 and the lower middle drainage pipe 303 respectively, inserting the top grouting pipe 101 and the top drainage pipe 301 from bottom to top, inserting the lower end of the top grouting pipe 103 and the lower middle drainage pipe 303 into the drill hole to be reinforced, screwing the upper middle grouting pipe 103 and the lower middle drainage pipe 303 respectively, repeating the steps until all selected middle drainage pipes 303 and middle grouting pipes 103 are screwed,
selecting all matched sealing rubber sleeves, sequentially sleeving the sealing rubber sleeves on the bottom section grouting pipe 102 to enable the sealing rubber sleeves 16 and the matched sealing rubber sleeves to be squeezed mutually, then ensuring that a valve 5 at the lower end of the drainage pipe 3 is in an open state, aligning the bottom section drainage pipe 302 and the bottom section grouting pipe 102 to the lowest end of the middle section drainage pipe 303 and the lowest end of the middle section grouting pipe 103 in the third step respectively to complete the screwing connection of the whole grouting pipe 1 and the drainage pipe 3,
inserting the bottom grouting pipe 102 upwards into the drilled hole to be reinforced, and tightly bonding the sealing rubber sleeve 16 or the matched sealing rubber sleeve with the inner wall of the lower port of the drilled hole to be reinforced,
sixthly, connecting a slurry inlet pipe 15 with an outlet pipe of a matched grouting machine (not shown in the figure), starting the grouting machine to inject reinforcing slurry into a grouting pipe 1, extruding the reinforcing slurry into a gap between the hole wall of a drill hole to be reinforced in a water-resisting layer 7 of a top plate 6 and the grouting pipe and a rock body crack of the drill hole to be reinforced in the water-resisting layer 7 of the top plate 6 through a grouting hole 2, forcing an expandable sealing sleeve to be tightly combined with the hole wall of the drill hole to be reinforced at the uppermost end of the water-resisting layer 7, preventing water of a water-bearing layer 8 from entering the drill hole of the water-resisting layer 7, maintaining pressure until the reinforcing slurry is solidified, and finishing the reinforcement when the drill hole to be reinforced is solidified,
and seventhly, finally closing the valve 5 at the lower end of the drainage tube 3 and cleaning accumulated water and sludge below the drainage tube.
Claims (4)
1. The utility model provides a drilling sleeve goes out water reinforcing apparatus, includes the slip casting pipe, it has a plurality of injected holes, its characterized in that to open on this slip casting pipe middle section lateral wall: a drainage tube is arranged in the grouting tube in a penetrating manner, the upper and lower ports of the grouting tube and the drainage tube are respectively sealed by a conical tube-shaped sealing plate or a circular ring-shaped sealing plate, the upper part of the grouting tube is fixedly connected with two outer convex rings, an expandable sealing sleeve is arranged between the two outer convex rings, the upper and lower edges of the expandable sealing sleeve are respectively provided with inward flanges, the inner sides of the flanges are respectively provided with a ring pressing plate, the two outer convex rings and the ring pressing plate are respectively provided with opposite axial through holes, each opposite axial through hole is internally provided with a fixing bolt, the fixing bolts penetrate through the flanges and then tightly fix the ring pressing plate, the flanges and the outer convex rings together, the bottom of the grouting tube is provided with a slurry inlet tube, a sealing rubber sleeve is arranged above the slurry inlet tube, the grouting holes are uniformly and densely distributed on the side wall of the grouting tube between the outer convex ring at the top of the grouting tube and the sealing rubber sleeve, and the outer diameters of the two outer convex rings are less than or equal to the inner diameter of a drilling hole to be reinforced, the sealing rubber sleeve can be inserted into the lower opening of the drill hole to be reinforced along with the grouting pipe, the outer surface of the sealing rubber sleeve is in water sealing with the inner wall of the lower opening of the drill hole to be reinforced, the expandable sealing sleeve is pressed and expanded when the slurry inlet pipe performs grouting, the outer circumferential surface of the expandable sealing sleeve is in water sealing with the inner wall of the drill hole to be reinforced, the axial line of the grouting pipe and the axial line of the drainage pipe are superposed and divided into a plurality of sections, the adjacent upper section and the lower section are respectively connected through threads, the thread pitches of the upper section and the lower section are the same, the top section grouting pipe and the top section drainage pipe are welded together through a conical pipe-shaped sealing plate or an annular sealing plate, the bottom section grouting pipe and the bottom section drainage pipe are also welded together through a conical pipe-shaped sealing plate or an annular sealing plate, and the middle section grouting pipe and the drainage pipe are separated from each other.
2. The borehole casing water outlet reinforcement device of claim 1, wherein: the lower end of the drainage tube is provided with a valve, and the length of the grouting tube is less than or equal to the length of the drill hole to be reinforced extending in the water-resisting layer of the top plate.
3. The borehole casing water outlet reinforcement device of claim 1, wherein: the wall thickness of the side wall of the grouting pipe is 8mm, and the length of the grouting pipe is more than or equal to 24.2 m.
4. The borehole casing water outlet reinforcement device of claim 2, wherein: the bottom section grouting pipe is sleeved with the matched sealing rubber sleeves, and the matched sealing rubber sleeves can be sleeved on the bottom section grouting pipe above the sealing rubber sleeves according to requirements and seal redundant grouting holes which cannot enter drilled holes and are formed in the bottom section grouting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122225050.8U CN215669522U (en) | 2021-09-14 | 2021-09-14 | Water outlet reinforcing device for drill hole sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122225050.8U CN215669522U (en) | 2021-09-14 | 2021-09-14 | Water outlet reinforcing device for drill hole sleeve |
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| Publication Number | Publication Date |
|---|---|
| CN215669522U true CN215669522U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122225050.8U Active CN215669522U (en) | 2021-09-14 | 2021-09-14 | Water outlet reinforcing device for drill hole sleeve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622429A (en) * | 2021-09-14 | 2021-11-09 | 兖矿东华建设有限公司 | Drilling casing water outlet reinforcement device and method |
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2021
- 2021-09-14 CN CN202122225050.8U patent/CN215669522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113622429A (en) * | 2021-09-14 | 2021-11-09 | 兖矿东华建设有限公司 | Drilling casing water outlet reinforcement device and method |
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