CN116044416A - Tunnel grouting reinforcement mechanism for water-rich granite residual soil stratum mine - Google Patents
Tunnel grouting reinforcement mechanism for water-rich granite residual soil stratum mine Download PDFInfo
- Publication number
- CN116044416A CN116044416A CN202310151998.4A CN202310151998A CN116044416A CN 116044416 A CN116044416 A CN 116044416A CN 202310151998 A CN202310151998 A CN 202310151998A CN 116044416 A CN116044416 A CN 116044416A
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- CN
- China
- Prior art keywords
- grouting
- fixing piece
- rotating shaft
- residual soil
- soil stratum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000010438 granite Substances 0.000 title claims abstract description 58
- 239000002689 soil Substances 0.000 title claims abstract description 58
- 230000007246 mechanism Effects 0.000 title claims abstract description 19
- 230000002787 reinforcement Effects 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 230000008093 supporting effect Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 15
- 238000005065 mining Methods 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 238000005728 strengthening Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 abstract description 11
- 239000011440 grout Substances 0.000 abstract description 8
- 230000035515 penetration Effects 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 8
- 239000004568 cement Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Soil Sciences (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a tunnel grouting reinforcement mechanism for a water-rich granite residual soil stratum mining method in the field of reinforcement and protection, which comprises a grouting pipe, wherein a cavity is penetrated in the grouting pipe along the horizontal direction; a fixing piece is in sliding fit in the cavity, a plurality of rotating shafts are circumferentially arranged on the fixing piece, and one end of each rotating shaft is in rotating fit with the fixing piece; the rotating shaft is hollow, a plurality of bracket pipes are communicated with the rotating shaft, and a plurality of pulp discharging holes are formed in the bracket pipes; one end of the fixing piece is detachably connected with a connecting shaft, grouting channels penetrate through the fixing piece and the connecting shaft, and the grouting channels are respectively communicated with the cavity and the grouting holes; one end of the connecting shaft, which is far away from the fixing piece, is fixedly connected with a threaded part, and the connecting shaft is in threaded fit with the grouting pipe through the threaded part; and the granite residual soil stratum is subjected to penetration grouting through the grouting pipe, and meanwhile, the granite residual soil stratum is reinforced through the rotating shaft on the fixing piece, the grouting range of the grout is enlarged, and the supporting effect of reinforcing the granite residual soil stratum is achieved.
Description
Technical Field
The invention belongs to the field of reinforcement and protection, and particularly relates to a tunnel grouting reinforcement mechanism for a water-rich granite residual soil stratum mining method.
Background
The granite residual soil stratum is a stratum with the characteristic of softening and disintegrating when meeting water, and when meeting the stratum in construction, the granite residual soil stratum needs to be reinforced so as to facilitate the follow-up construction.
For example, chinese patent publication No. CN212003233U discloses a tunnel construction reinforcing anchor rod, which comprises an anchor rod, the inner chamber has been seted up to the inside of stock, the fixed upper padding plate that has cup jointed of top of stock lateral wall, the fixed lower bolster that has cup jointed of below of stock lateral wall, the adapter sleeve has been fixedly cup jointed at the middle part of stock lateral wall, grouting opening has been seted up at the top of stock, grouting opening's inside wall threaded connection has the grout stop plug, the basic cone piece that the bottom fixedly connected with cone of stock set up, a plurality of basic grout outlets have been seted up to the lateral wall of stock, basic grout outlet and inner chamber intercommunication set up, the inside wall of inner chamber is connected with fixed establishment and strengthening mechanism.
According to the scheme, through the cooperation work between the fixing mechanisms, cement is injected into the external pump, and when the cement flows out through the basic grout outlet, the cement can drive the sliding block to integrally move outwards, but when the sliding block encounters some stratum rich in stones, the sliding block cannot be fixed on the stratum by solely depending on the pushing force of the cement.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a tunnel grouting reinforcement mechanism for a water-rich granite residual soil stratum by a mining method, which can be used for grouting the granite residual soil stratum and reinforcing the supporting effect of the granite residual soil stratum.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the tunnel grouting reinforcement mechanism for the water-rich granite residual soil stratum mining method comprises a grouting pipe, wherein a cavity is penetrated in the grouting pipe along the horizontal direction;
a fixing piece is in sliding fit in the cavity, a plurality of rotating shafts are circumferentially arranged on the fixing piece, and one end of each rotating shaft is in rotating fit with the fixing piece;
the rotating shaft is hollow, a plurality of bracket pipes are communicated with the rotating shaft, and a plurality of pulp discharging holes are formed in the bracket pipes;
one end of the fixing piece is detachably connected with a connecting shaft, grouting channels penetrate through the fixing piece and the connecting shaft, and the grouting channels are respectively communicated with the cavity and the grouting holes;
one end of the connecting shaft, which is far away from the fixing piece, is fixedly connected with a threaded part, and the connecting shaft is in threaded fit with the grouting pipe through the threaded part.
After the scheme is adopted, the following beneficial effects are realized: performing penetration grouting on the granite residual soil stratum through the grouting pipe, so that the granite residual soil stratum around the grouting pipe can be reinforced;
simultaneously, the fixing piece in the cavity is pushed out through the connecting shaft, so that the rotating shaft rotates on the fixing piece, the connecting shaft and the fixing piece form an anchor head similar to an inverted triangle on a granite residual soil stratum, and the slurry is discharged through the slurry discharging hole; after the slurry is solidified, the slurry can strengthen the granite residual soil stratum, and meanwhile, the connecting shaft can play a supporting role, so that the slurry can be more firmly fixed in the granite residual soil stratum, and the supporting effect of strengthening the granite residual soil stratum can be achieved;
because the fixing piece is detachably connected with the connecting shaft, in the reinforcing process, the drilling and reinforcing of the next granite residual soil stratum can be performed only by detaching and installing the fixing piece, and the operation is convenient;
in the granite residual soil layer, a single fixing piece can anchor the granite residual soil layer of a region, multiple positions are drilled and grouting reinforced, a reinforcing layer can be formed, the granite residual soil layer can be better fixed through the synergism between adjacent anchor regions and region support, the influence of softening and disintegrating characteristics of the granite residual soil layer when meeting water is reduced, and the supporting effect of the granite residual soil layer can be better achieved.
Further, slip casting pipe one end fixedly connected with drill bit.
The beneficial effects are that: the drill bit is convenient for the grouting pipe to enter the granite residual soil stratum so as to perform grouting on the granite residual soil stratum.
Further, one end of the grouting pipe far away from the drill bit is fixedly connected with a supporting seat.
The beneficial effects are that: after drilling is completed, the support seat is convenient for placing the grouting pipe on the granite residual soil stratum, and the follow-up grouting is convenient to carry out.
Further, a plurality of grouting holes are formed in the grouting pipe, and the grouting holes are communicated with the cavity.
The beneficial effects are that: the grouting holes are convenient for discharging the slurry and reinforcing the granite residual soil stratum.
Further, a plurality of standing grooves are circumferentially arranged on the outer wall of the fixing piece, the rotating shaft is located in the standing groove, one end of the rotating shaft is fixedly connected with the rotating shaft, the rotating shaft is perpendicular to the rotating shaft, the rotating shaft is located in the standing groove, two ends of the rotating shaft are in running fit with the fixing piece, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected with the fixing piece, and the other end of the torsion spring is located in the standing groove.
The beneficial effects are that: the placing groove can provide a space, so that the rotating shaft can be conveniently stored; the rotating shaft is convenient for the rotating shaft to rotate on the fixing piece, and the grouting range of the slurry is enlarged through the rotating shaft; the torsional spring is sleeved on the rotating shaft, so that the periphery of the rotating shaft is convenient to expand, and meanwhile, the granite residual soil stratum can be compressed, so that the granite residual soil stratum can be reinforced conveniently.
Further, a connecting pipe is arranged between the grouting channel and the rotating shaft, and the rotating shaft is communicated with the grouting channel through the connecting pipe.
The beneficial effects are that: the slurry in the grouting channel can flow into the rotating shaft conveniently by the connecting pipeline, so that the reinforcing range of the slurry to the granite residual soil stratum is enlarged.
Further, mounting one end fixedly connected with supporting part, the diameter of supporting part is all less than the diameter of mounting and the diameter of connecting axle, and the mounting passes through supporting part and connecting axle clearance fit.
The beneficial effects are that: the diameter of the supporting part is smaller than the diameter of the fixing part and the diameter of the connecting shaft, so that clearance fit is realized between the fixing part and the connecting shaft, and the fixing part and the connecting shaft are detachably connected, so that the fixing part is left in the granite residual soil layer.
Further, a plurality of connecting holes are formed in the connecting shaft, and the grouting channel is communicated with the cavity through the connecting holes.
The beneficial effects are that: the slurry in the grouting channel can conveniently enter the cavity from the connecting hole, so that the slurry is discharged from the grouting hole, and the granite residual soil stratum is reinforced.
Drawings
Fig. 1 is a front view of a grouting reinforcement mechanism according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a grouting reinforcement mechanism according to an embodiment of the invention.
Fig. 3 is an opened schematic view of the rotating shaft of fig. 2.
Fig. 4 is a cross-sectional view of the mount of fig. 3.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: grouting pipe 1, drill 11, grouting hole 12, supporting seat 13, cavity 14, connecting shaft 2, grouting channel 21, connecting hole 22, screw thread portion 23, fixing piece 3, rotation shaft 31, rotation shaft 311, connecting pipe 312, bracket pipe 313, supporting portion 32, placing groove 4, torsion spring 5.
An embodiment is substantially as shown in figures 1 to 4: the grouting reinforcement mechanism for the mining tunnel of the water-rich granite residual soil stratum comprises a grouting pipe 1, wherein the left end of the grouting pipe 1 is fixedly connected with a drill bit 11, the right end of the grouting pipe 1 is fixedly connected with a supporting seat 13, a cavity 14 is penetrated in the grouting pipe 1 along the horizontal direction, a plurality of grouting holes 12 are formed in the grouting pipe 1, and the grouting holes 12 are communicated with the cavity 14;
a fixing piece 3 and a connecting shaft 2 are sequentially arranged in the cavity 14 from left to right, the fixing piece 3 is in sliding fit with the grouting pipe 1, a plurality of placing grooves 4 are circumferentially arranged on the outer wall of the fixing piece 3, a rotating shaft 31 is rotationally matched in the placing grooves 4, one end of the rotating shaft 31 is fixedly connected with a rotating shaft 311, the rotating shaft 311 and the rotating shaft 31 are mutually perpendicular, the rotating shaft 311 is positioned in the placing grooves 4, two ends of the rotating shaft 311 are in rotating fit with the fixing piece 3, a torsion spring 5 is sleeved on the rotating shaft 311, one end of the torsion spring 5 is fixedly connected with the fixing piece 3, and the other end of the torsion spring 5 is positioned in the placing grooves 4;
the rotating shaft 31 is hollow, a plurality of support pipes 313 are communicated with the rotating shaft 31, and a plurality of pulp discharging holes are formed in the support pipes 313;
the right end of the fixing piece 3 is fixedly connected with a supporting part 32, the diameter of the supporting part 32 is smaller than the diameter of the fixing piece 3 and the diameter of the connecting shaft 2, the fixing piece 3 is in clearance fit with the connecting shaft 2 through the supporting part 32, grouting channels 21 are respectively penetrated in the fixing piece 3 and the connecting shaft 2, a connecting pipe is arranged between the grouting channels 21 and the rotating shaft 31, and the rotating shaft 31 is communicated with the grouting channels 21 through the connecting pipe;
the connecting shaft 2 is provided with a plurality of connecting holes 22, the connecting holes 22 are communicated with the grouting channel 21, the outer wall of the right end of the connecting shaft 2 is fixedly connected with a threaded part 23, and the connecting shaft 2 is in threaded fit with the supporting seat 13 through the threaded part 23.
The specific implementation process is as follows:
as shown in fig. 1, 2, 3 and 4, a drill bit 11 is used for manually rotating holes on a granite residual soil stratum, and then a grouting channel 21 in a grouting pipe 1 is used for performing infiltration grouting on the granite residual soil stratum so as to strengthen the granite residual soil stratum around the grouting pipe 1;
manually rotating the connecting shaft 2 until the threaded part 23 on the connecting shaft 2 completely enters the cavity 14, pushing out the fixing piece 3 in the cavity 14 through the connecting shaft 2, and after the fixing piece 3 leaves the cavity 14, preventing the rotating shaft 31 in the placing groove 4 from being restrained any more, wherein the rotating shaft 311 is influenced by the rebound of the torsion spring 5, so that the rotating shaft 31 rotates on the fixing piece 3, the connecting shaft 2 and the fixing piece 3 form an anchor head similar to an inverted triangle in a granite residual soil stratum, and after grout is discharged through the grout discharging hole, the reinforcement range of the grout on the granite residual soil stratum can be enlarged;
after the slurry is solidified, the slurry can strengthen the granite residual soil stratum, and meanwhile, the connecting shaft 2 and the support pipe 313 can play a supporting role, so that the slurry can be more firmly fixed in the granite residual soil stratum, and the supporting effect of strengthening the granite residual soil stratum can be achieved;
after grouting is completed, the fixing frame is convenient to separate from the connecting shaft 2 due to the anchoring action of the connecting shaft 2 and the support pipe 313, the connecting shaft 2 is reversely rotated, and the fixing frame can be left in the granite residual soil layer through clearance fit between the supporting part 32 and the connecting shaft 2, so that the operation is convenient, and in the reinforcing process, the drilling and the reinforcing of the next granite residual soil layer can be carried out only by detaching and installing the fixing part 3;
in the granite residual soil layer, a single fixing piece 3 can anchor the granite residual soil layer of a region, multiple positions are drilled and grouting reinforced, a reinforcing layer can be formed, the granite residual soil layer can be better fixed through the synergism between adjacent anchor regions and region support, the influence of softening and disintegrating characteristics of the granite residual soil layer when meeting water is reduced, the supporting effect of the granite residual soil layer can be better achieved, and the follow-up construction is facilitated.
The foregoing is merely exemplary of the present invention and the specific structures and/or characteristics of the present invention that are well known in the art have not been described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. The utility model provides a rich water granite residual soil stratum mine method tunnel grouting strengthening mechanism which characterized in that: the grouting device comprises a grouting pipe, wherein a cavity penetrates through the grouting pipe along the horizontal direction;
a fixing piece is in sliding fit in the cavity, a plurality of rotating shafts are circumferentially arranged on the fixing piece, and one end of each rotating shaft is in rotating fit with the fixing piece;
the rotating shaft is hollow, a plurality of bracket pipes are communicated with the rotating shaft, and a plurality of pulp discharging holes are formed in the bracket pipes;
one end of the fixing piece is detachably connected with a connecting shaft, grouting channels penetrate through the fixing piece and the connecting shaft, and the grouting channels are respectively communicated with the cavity and the grouting holes;
one end of the connecting shaft, which is far away from the fixing piece, is fixedly connected with a threaded part, and the connecting shaft is in threaded fit with the grouting pipe through the threaded part.
2. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 1, wherein: one end of the grouting pipe is fixedly connected with a drill bit.
3. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 2, wherein: one end of the grouting pipe, which is far away from the drill bit, is fixedly connected with a supporting seat.
4. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 3, wherein: the grouting pipe is provided with a plurality of grouting holes which are communicated with the cavity.
5. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 4, wherein: a plurality of standing grooves are circumferentially arranged on the outer wall of the fixing piece, the rotating shaft is located in the standing groove, one end of the rotating shaft is fixedly connected with the rotating shaft, the rotating shaft is perpendicular to the rotating shaft, the rotating shaft is located in the standing groove, two ends of the rotating shaft are in running fit with the fixing piece, a torsion spring is sleeved on the rotating shaft, one end of the torsion spring is fixedly connected with the fixing piece, and the other end of the torsion spring is located in the standing groove.
6. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 5, wherein: a connecting pipe is arranged between the grouting channel and the rotating shaft, and the rotating shaft is communicated with the grouting channel through the connecting pipe.
7. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 6, wherein: one end of the fixing piece is fixedly connected with a supporting part, the diameter of the supporting part is smaller than the diameter of the fixing piece and the diameter of the connecting shaft, and the fixing piece is in clearance fit with the connecting shaft through the supporting part.
8. The water-rich granite residual soil stratum mining method tunnel grouting reinforcement mechanism according to claim 7, wherein: the connecting shaft is provided with a plurality of connecting holes, and the grouting channel is communicated with the cavity through the connecting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310151998.4A CN116044416B (en) | 2023-02-22 | 2023-02-22 | Tunnel grouting reinforcement mechanism for water-rich granite residual soil stratum mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310151998.4A CN116044416B (en) | 2023-02-22 | 2023-02-22 | Tunnel grouting reinforcement mechanism for water-rich granite residual soil stratum mine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116044416A true CN116044416A (en) | 2023-05-02 |
| CN116044416B CN116044416B (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310151998.4A Active CN116044416B (en) | 2023-02-22 | 2023-02-22 | Tunnel grouting reinforcement mechanism for water-rich granite residual soil stratum mine |
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| Country | Link |
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| CN (1) | CN116044416B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08166068A (en) * | 1994-12-12 | 1996-06-25 | Kanazawa Seisakusho:Kk | Switch valve |
| CN102913256A (en) * | 2012-11-19 | 2013-02-06 | 湖南科技大学 | Pentagram-shaped support structure for granite residual soil tunnel and method therefor |
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| CN109707337A (en) * | 2019-01-07 | 2019-05-03 | 中铁十二局集团有限公司 | Assembled grouting pipe voluntarily slurry stop |
| CN114922661A (en) * | 2022-07-21 | 2022-08-19 | 中南大学 | Miniature reinforcing pile for concrete pipe sheet of shield tunnel |
-
2023
- 2023-02-22 CN CN202310151998.4A patent/CN116044416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08166068A (en) * | 1994-12-12 | 1996-06-25 | Kanazawa Seisakusho:Kk | Switch valve |
| CN102913256A (en) * | 2012-11-19 | 2013-02-06 | 湖南科技大学 | Pentagram-shaped support structure for granite residual soil tunnel and method therefor |
| CN107387141A (en) * | 2017-09-12 | 2017-11-24 | 中国矿业大学 | A kind of self-drilling type difference slip casting assembled bolt and its anchoring process |
| CN109707337A (en) * | 2019-01-07 | 2019-05-03 | 中铁十二局集团有限公司 | Assembled grouting pipe voluntarily slurry stop |
| CN114922661A (en) * | 2022-07-21 | 2022-08-19 | 中南大学 | Miniature reinforcing pile for concrete pipe sheet of shield tunnel |
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| Publication number | Publication date |
|---|---|
| CN116044416B (en) | 2023-11-07 |
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