CN208763692U - Pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water - Google Patents
Pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water Download PDFInfo
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- CN208763692U CN208763692U CN201821304567.8U CN201821304567U CN208763692U CN 208763692 U CN208763692 U CN 208763692U CN 201821304567 U CN201821304567 U CN 201821304567U CN 208763692 U CN208763692 U CN 208763692U
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- pipe
- tube body
- tapping pipe
- diversion
- surrounding rock
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Abstract
The utility model discloses a kind of pilot drainage arrangements for the weak cementing roadway surrounding rock of rich water, including self-drilling type aqueduct, the first tapping pipe and the second tapping pipe, multiple self-drilling type aqueduct one-to-one correspondence are laid in along multiple radiused bores that drift section two is helped and top plate opens up, the self-drilling type aqueduct includes diversion tube body and diversion pipe bit, and diversion pipe bit is fixed on diversion tube body one end；First tapping pipe is helped along drift section two and the fitting of top plate arc is laid and fixed by multiple pipe clamps, first tapping pipe is made of sluicing tube body and multiple connection nozzles, second tapping pipe is embedded in the bottom cushion of roadway floor, gutter is protruded into second tapping pipe one end, and the second tapping pipe other end is connect by elbow with the sluicing tube body other end.The utility model effectively can carry out draining pilot to roadway surrounding rock, weaken underground water immense pressure caused by country rock, improve the weak cementing improving stability of surrounding rocks in roadway of rich water.
Description
Technical field
It is specifically a kind of to be used for the weak cementing tunnel of rich water the utility model relates to a kind of pilot drainage arrangement of roadway surrounding rock
The pilot drainage arrangement of country rock.
Background technique
Weak cementing country rock is more common in mine tunnel engineering, and since country rock belongs to the weak rocks soil body, medium is loose, broken
Broken, Surrounding Rock Strength is low, globality poor, difficult anchoring, and Yi Fasheng roof collapse, unstability collapse, bracket distortion failure etc. is non-linear big
Deformation failure.And cementing tunnel weak for rich water, strength reduction, Anchor Agent are viscous after the effect of water can not only be such that country rock water suction softens
The decline of knot property, the corrosion of anchor pole (rope) metal component cause anchor pole, the deterioration of anchor cable mechanical property to cause fastening invalidation, and in depth
The presence of high hydraulic pressure has also sharply increased the supporting load of country rock under portion's condition of high ground stress, causes roadway deformation even more serious, surely
Qualitative contrlol is more difficult, or even the often roof fall of occurrence of large-area, side disaster accident of bursting.Therefore, the weak cementing roadway surrounding rock of rich water
Pilot draining have become the control of China part mine laneway surrounding rock stability and maintenance, ensure the one big of tunnel safety operation
Technical problem.
Mine laneway conventional discharge pressure relief device still remains in terms of the weak cementing deformation of the surrounding rock in tunnel of reply rich water, unstability
The problem of all various aspects.First, roadway surrounding rock watery is strong, the loose water penetration of rock-soil material is high, and the seepage discharge of country rock is larger, mesh
Preceding device displacement is small not to be able to satisfy timely ejectment demand；Second, with the increase for adopting depth and ground pressure, in addition hypertonic permeable
The effect of pressure, broken-rock pressure, deformation of the surrounding rock in tunnel amount is very big, and the deformability for draining pressure relief device is very limited, consequently also
It deforms and destroys and then lose drainability；Third, country rock cementing properties is weak, broken, and pore-forming is difficult, and Yi Fasheng collapses hole, Wu Fashi
Work drain hole is effectively drained；4th, single filter device, which is arranged, not in aqueduct can effectively prevent fine grained ground stream
Tube hole plug caused by mistake；5th, there is no bottom plate waterproof/drainage structure.Single-side drainage ditch, another side wall rock is generally arranged in underworkings
Infiltration, top plate water drenching can form a large amount of ponding in bottom plate, so that floor strata immersion is deformed destruction, further influence
Side, the stability pushed up.It can be seen that the pilot draining that current technology means are not able to satisfy the weak cementing roadway surrounding rock of rich water is wanted
It asks, can not ensure tunnel safety operation.
Summary of the invention
In view of the above-mentioned problems of the prior art, the utility model provide it is a kind of for the weak cementing roadway surrounding rock of rich water
Pilot drainage arrangement digs early period and later period in roadway head, effectively can carry out draining pilot to roadway surrounding rock, subtract
Weak underground water immense pressure caused by country rock and other adverse effects reduce such fall of ground, burst what the disasters such as side occurred
Probability improves the weak cementing improving stability of surrounding rocks in roadway of rich water.
To achieve the goals above, the technical solution adopted in the utility model is: one kind is enclosed for the weak cementing tunnel of rich water
The pilot drainage arrangement of rock, including opening up the draining extended along tunnel axial direction at the base angle position of roadway's sides wherein side
Groove, and gutter is opened up below drain groove, further includes self-drilling type aqueduct, the first tapping pipe and the second tapping pipe,
Multiple self-drilling type aqueduct one-to-one correspondence are laid in along multiple radiused bores that drift section two is helped and top plate opens up；
The self-drilling type aqueduct is overlength, major diameter drainage pilot round tube, including diversion tube body and diversion pipe bit, is drawn
Water pipe drill bit is fixed on diversion tube body one end, and the through-hole through drill bit is equipped in diversion pipe bit, and the shape of diversion pipe bit is
Erietiform or column tooth form；The tube wall of diversion tube body opens up multiple priming holes, and multiple priming holes are in quincunx distribution, each priming hole
It is inside embedded with filter core, the diversion tube body other end opens up external screw thread；
First tapping pipe is helped along drift section two and the fitting of top plate arc is laid and fixed by multiple pipe clamps, first
Tapping pipe is made of sluicing tube body and multiple connection nozzles, and sluicing tube body one end is in the surface in gutter, multiple connecting tubes
Mouth is evenly distributed on the outer surface of sluicing tube body, and multiple connection nozzles are corresponded with self-drilling type aqueduct respectively, connects nozzle
Equipped with internal screw thread, connects nozzle and be connected through a screw thread with the diversion tube body other end；
Second tapping pipe is embedded in the bottom cushion of roadway floor, and gutter is protruded into second tapping pipe one end, the
The two tapping pipe other ends are connect by elbow with the sluicing tube body other end of the first tapping pipe.
Further, the sluicing tube body of first tapping pipe and the second tapping pipe is tooth form pipe, tooth form pipe by inner wall and
Outer wall composition, inner wall are fixed in outer wall, and the outer wall, which is arranged and is connected with each other by height deformation tooth and low deformation space of teeth, to be formed,
The inner wall hinders section pipe arranged in co-axial alignment by multiple drops and there are deformation gaps to form between each other；This structure has tooth form pipe
Standby good deformability, avoiding large deformation of roadway leads to the destruction of pipeline, while increasing the discharge capacity of tube body again.
Further, steel reinforcement cage and splash guard are equipped in the drain groove, steel reinforcement cage is fixed on splash guard.Using reinforcing bar
Cage is supported drain groove, reinforces；Splash guard is avoided that flowing water penetrates into floor strata for a long time and destroys；Meanwhile it enclosing
Rock water can be in line in gutter by drain groove top surface and side, shortens emission path, increases discharge amount.
Further, sluicing tube body one end right above gutter is equipped with variable diameter pressure release head I, protrudes into the second of gutter
Tapping pipe one end is equipped with variable diameter pressure release head II.The fast of country rock underground water can be improved by adding variable diameter pressure release head I and variable diameter pressure release head II
Fast water guide release, provides advantage for surrounding rock supporting.
Further, the filter core is the interior organic polymer veil for wrapping up in particulate glass marble and coarse sand.Can to from priming hole into
The water entered is filtered, and prevents gravel particle blocking pipeline.
Further, second tapping pipe tilts 3~5 ° in the horizontal direction.Setting inclination angle is more conducive to Auto-drainage.
Further, the diversion tube body other end is equipped with secondary filter, and secondary filter is high desnity metal net or high-strength fibre
Tie up net.The water in pipeline can be filtered again by adding secondary filter, prevent gravel particle blocking pipeline.
Further, flexible water surface layer is equipped on the bottom cushion.Flexible water surface layer is suitable for Floor Heave in Roadway change
Shape, and then the destruction of long-term water drenching, ponding to floor strata can be eliminated.
Compared with prior art, the utility model uses drain groove, gutter, self-drilling type aqueduct, the first tapping pipe
Mode is combined with the second tapping pipe,
(1) arrange that major diameter self-drilling type aqueduct, base angle opens up in line drain groove and tooth form tapping pipe goes out by deep hole
Variable diameter pressure release head is arranged in mouth end, considerably increases the mass rate of emission and emission flow of country rock water, realizes rich water country rock and quickly lead
Pressure and drainage procedure, provide advantage for tunnel safety operation.
(2) the first tapping pipe and the second tapping pipe that the utility model uses, since tooth form pipe not only has good stretch
Contracting performance, and can any bending deformation, press high hydraulic pressure to realize the first tapping pipe and the second tapping pipe and adapt to highland
The deformation of lower roadway surrounding rock, especially pucking, avoiding country rock large deformation causes the first tapping pipe and the damage of the second tapping pipe to draw
The safety accident of hair improves the service life of tapping pipe indirectly.
(3) drainage is carried out to the water in country rock and is collected, it is weak to solve rich water from the self-drilling type aqueduct for boring function using band
Cementing country rock drain hole pore-forming hardly possible, the hole that easily collapses, the problem of can not constructing.
(4) two-grade dual filter device is arranged to self-drilling type aqueduct, to effectively prevent country rock fine grained blocking pipe
Hole system greatly reduces the pressure that underground water forms country rock.
(5) the another side wall rock water in tunnel is emitted into gutter by bottom plate, and bottom plate flexible water surface layer is set, and then disappears
Destruction in addition to long-term water drenching, ponding to bottom plate enhances the stability of bottom plate and tunnel entirety.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the first tapping pipe and the second tapping pipe in the utility model；
Fig. 3 is the structural schematic diagram of tooth form pipe in the utility model；
Fig. 4 is self-drilling type aqueduct connection schematic diagram in the utility model；
Fig. 5 is self-drilling type aqueduct structural schematic diagram in the utility model；
Fig. 6 is drain groove and gutter arrangement schematic diagram in the utility model；
Fig. 7 is drain groove structural schematic diagram in the utility model.
In figure: 1, self-drilling type aqueduct, the 2, first tapping pipe, 3, connection nozzle, 4, country rock, 5, supporting construction, 6, draining
Groove, 7, gutter, the 8, second tapping pipe, 9, tunnel, 10, bottom cushion, 11, floor strata, 12, elbow, 13, flexible water
Surface layer, 14, pipe clamp, 15, variable diameter pressure release head I, 16, variable diameter pressure release head II, 17, internal screw thread, 18, external screw thread, 19, priming hole, 20,
Filter core, 21, diversion pipe bit, 22, secondary filter, 23, steel reinforcement cage, 24, splash guard, 25, inner wall, 26, outer wall, 27, high deformation
Tooth, 28, low deformation tooth, 29, drop resistance section pipe, 30, deformation gap.
Specific embodiment
The utility model will be described further below.
As shown, the utility model includes helping the base angle position of wherein side to open up along 9 axial direction side of tunnel for 9 liang in tunnel
To the drain groove 6 of extension, and gutter 7 is opened up below drain groove 6, further include that self-drilling type aqueduct 1, first sluices
Pipe 2 and the second tapping pipe 8, multiple self-drilling type aqueducts 1 are corresponded to be laid in and be helped along drift section two and that top plate opens up is more
In a radiused bores,
The self-drilling type aqueduct 1 is overlength, major diameter drainage pilot round tube, including diversion tube body and diversion pipe bit
21, diversion pipe bit 21 is fixed on diversion tube body one end, and the through-hole through drill bit, diversion pipe bit are equipped in diversion pipe bit 21
21 shape is erietiform or column tooth form；The tube wall of diversion tube body opens up multiple priming holes 19, and multiple priming holes 19 are in quincunx
It is distributed, filter core is embedded in each priming hole 19, the diversion tube body other end opens up external screw thread 18；
First tapping pipe 2 is helped along drift section two and the fitting of top plate arc is laid and fixed by multiple pipe clamps 14,
First tapping pipe 2 is made of sluicing tube body and multiple connection nozzles 3, and sluicing tube body one end is in the surface in gutter 7, multiple
Connection nozzle 3 is evenly distributed on the outer surface of sluicing tube body, and multiple connection nozzles 3 are corresponded with self-drilling type aqueduct respectively,
It connects nozzle 3 and is equipped with internal screw thread 17, connection nozzle 3 is connected through a screw thread with the diversion tube body other end；
Second tapping pipe 8 is embedded in the bottom cushion 10 of roadway floor, and gutter is protruded into 8 one end of the second tapping pipe
7,8 other end of the second tapping pipe is connect by elbow 12 with the sluicing tube body other end.
Further, the sluicing tube body of first tapping pipe 2 and the second tapping pipe 8 can be tooth form pipe or bellows, it is excellent
Choosing uses tooth form pipe, and tooth form pipe is made of inner wall 25 and outer wall 26, and inner wall 25 is fixed in outer wall 26, and the outer wall 26 is become by height
Shape tooth 27 and low deformation tooth 28 interval setting and be connected with each other composition, the inner wall 25 by multiple drops resistance 29 arranged in co-axial alignment of section pipe and
There are the compositions of deformation gap 30 between each other.
Further, it is equipped with steel reinforcement cage 23 and splash guard 24 in the drain groove 6, steel reinforcement cage 23 is fixed on splash guard 24
On.
Further, sluicing tube body one end right above gutter 7 is equipped with variable diameter pressure release head I 15, protrudes into gutter 7
Second tapping pipe, 8 one end is equipped with variable diameter pressure release head II 16.
Further, the filter core 20 is the interior organic polymer veil for wrapping up in particulate glass marble and coarse sand.
Further, second tapping pipe 8 tilts 3~5 ° in the horizontal direction.
Further, the diversion tube body other end is equipped with secondary filter 22, and secondary filter 22 is high desnity metal net or height
Strong web.
Further, flexible water surface layer 13 is equipped on the bottom cushion 10.
The Specific construction step of the utility model are as follows:
(1) it is comprehensive that roadway surrounding rock property, mechanics parameter and water burst parameter, the method using on-the-spot test and numerical simulation are obtained
The length and diameter for determining self-drilling type aqueduct 1 are closed, it is made to meet the requirement of the quick pilot draining of in emergency circumstances big flow, it can
2.0~3.5m of length, 70~90mm of outer diameter are taken, bit diameter is 72~92mm；
(2) it is helped along drift section two and top plate is according to 0.6~1.2m of spacing, 1.0~2.0m of array pitch laying self-drilling type diversion
Pore position simultaneously marks, and bore diameter is 75~95mm, and depth is 1.9~3.4m；
(3) drilling installation is carried out in corresponding hole location to self-drilling type aqueduct 1 using mining-drilling machine, and ensures that self-drilling type draws
Water pipe 1 reaches required brill depth and dip angle of hole；
(4) required drain discharge is determined according to the water yield test statistics data of underworkings scene country rock, it is final true
The diameter of fixed first tapping pipe 2 and the second tapping pipe 8；
(5) on the drift section circumferential direction direction of self-drilling type aqueduct 1 for having completed arrangement, fitting lays first and sluices
Pipe 2 is fixed on country rock wall surface using pipe clamp 14, and is connected respectively with self-drilling type aqueduct 1 by screw thread by multiple connection nozzles 3
It connects, then variable diameter pressure release head I 15 is mounted on to 2 one end of the first tapping pipe of 7 top of drift dewatering ditch；
(6) first tapping pipe 2 is connect with the second tapping pipe 8 using elbow 12, by the second tapping pipe 8 with 3~5 ° of inclination angles
It being embedded in the bottom cushion 10 of roadway floor, bottom cushion 10 is arranged on floor strata 11, and second in gutter 7
Variable diameter pressure release head II 16 is installed in 8 one end of tapping pipe, and flexible water surface layer 13 is then laid on bottom cushion 10；
(7) it uses reinforcing bar with ribbing staggeredly to weld and a length of 3~5m, width is made as 0.1~0.2m, a height of 0.15~0.25m
Steel reinforcement cage 23 be used as support frame, then the steel reinforcement cage 23 that ground processes is transported into tunnel 9；
(8) drain groove 6 is provided with to the base angle position of 7 side of drift dewatering ditch, and away from 7 top 0.1 of gutter~
Then 0.3m is laid with splash guard 24 in 6 bottom surface of drain groove, and steel reinforcement cage 23 made of step (7) is embedded in drain groove 6
It is supported, completes entire work progress.
Claims (8)
1. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water, being included in roadway's sides, wherein side is opened up along lane
The drain groove (6) that road (9) axial direction extends, and gutter (7) are opened up below drain groove (6), which is characterized in that
It further include self-drilling type aqueduct (1), the first tapping pipe (2) and the second tapping pipe (8), multiple self-drilling type aqueducts (1) one are a pair of
It should be laid in along multiple radiused bores that drift section two is helped and top plate opens up；
The self-drilling type aqueduct (1) includes diversion tube body and diversion pipe bit (21), and diversion pipe bit (21) is fixed on diversion
Tube body one end, the interior through-hole being equipped with through drill bit of diversion pipe bit (21), the shape of diversion pipe bit (21) is erietiform or column
Tooth form；The tube wall of diversion tube body opens up multiple priming holes (19), and multiple priming holes (19) are in quincunx distribution, each priming hole
(19) filter core (20) are embedded in, the diversion tube body other end opens up external screw thread (18)；
First tapping pipe (2) is helped along drift section two and the fitting of top plate arc is laid and fixed by multiple pipe clamps (14),
First tapping pipe (2) is made of sluicing tube body and multiple connection nozzles (3), sluicing tube body one end be in gutter (7) just on
Side, multiple connections nozzle (3) are evenly distributed on the outer surfaces of sluicing tube body, multiple connection nozzles (3) respectively with self-drilling type diversion
It manages (1) to correspond, connection nozzle (3) is equipped with internal screw thread (17), and connection nozzle (3) and the diversion tube body other end are connected by screw thread
It connects；
Second tapping pipe (8) is embedded in the bottom cushion (10) of roadway floor, and draining is protruded into the second tapping pipe (8) one end
Ditch (7), the second tapping pipe (8) other end are connect by elbow (12) with the sluicing tube body other end.
2. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
The sluicing tube body of first tapping pipe (2) and the second tapping pipe (8) is tooth form pipe, and tooth form pipe is by inner wall (25) and outer wall
(26) it forms, inner wall (25) is fixed in outer wall (26), and the outer wall (26) is by between height deformation tooth (27) and low deformation tooth (28)
Every setting and it is connected with each other composition, the inner wall (25) hinders section pipe (29) arranged in co-axial alignment by multiple drops and there are deformations between each other
Gap (30) composition.
3. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
Steel reinforcement cage (23) and splash guard (24) are equipped in the drain groove (6), steel reinforcement cage (23) is fixed on splash guard (24).
4. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
Sluicing tube body one end right above gutter (7) is equipped with variable diameter pressure release head I (15), and protrude into gutter (7) second sluices
It manages (8) one end and variable diameter pressure release head II (16) is housed.
5. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
The filter core (20) is the interior organic polymer veil for wrapping up in particulate glass marble and coarse sand.
6. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
Second tapping pipe (8) tilts 3~5 ° in the horizontal direction.
7. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
The diversion tube body other end is equipped with secondary filter (22), and secondary filter (22) is high desnity metal net or high-intensity fiber net.
8. a kind of pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water according to claim 1, which is characterized in that
Flexible water surface layer (13) are equipped on the bottom cushion (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304567.8U CN208763692U (en) | 2018-08-14 | 2018-08-14 | Pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821304567.8U CN208763692U (en) | 2018-08-14 | 2018-08-14 | Pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763692U true CN208763692U (en) | 2019-04-19 |
Family
ID=66131216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821304567.8U Expired - Fee Related CN208763692U (en) | 2018-08-14 | 2018-08-14 | Pilot drainage arrangement for the weak cementing roadway surrounding rock of rich water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763692U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999635A (en) * | 2018-08-14 | 2018-12-14 | 湖南科技大学 | A kind of pilot drainage arrangement and construction method for the weak cementing roadway surrounding rock of rich water |
| CN110486049A (en) * | 2019-08-29 | 2019-11-22 | 龙口矿业集团有限公司 | A kind of rich water sandstone tunnel passing fault crushed zone comprehensive processing method |
-
2018
- 2018-08-14 CN CN201821304567.8U patent/CN208763692U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999635A (en) * | 2018-08-14 | 2018-12-14 | 湖南科技大学 | A kind of pilot drainage arrangement and construction method for the weak cementing roadway surrounding rock of rich water |
| CN110486049A (en) * | 2019-08-29 | 2019-11-22 | 龙口矿业集团有限公司 | A kind of rich water sandstone tunnel passing fault crushed zone comprehensive processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 Termination date: 20210814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |