CN110500060A - A kind of quick grouting device of segmentation protrusive drilling rod, system and grouting method - Google Patents
A kind of quick grouting device of segmentation protrusive drilling rod, system and grouting method Download PDFInfo
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- CN110500060A CN110500060A CN201910916831.6A CN201910916831A CN110500060A CN 110500060 A CN110500060 A CN 110500060A CN 201910916831 A CN201910916831 A CN 201910916831A CN 110500060 A CN110500060 A CN 110500060A
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- drilling rod
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- hydraulic bag
- pipe drilling
- tube
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- 238000005553 drilling Methods 0.000 title claims abstract description 158
- 230000011218 segmentation Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims description 19
- 230000009977 dual effect Effects 0.000 claims abstract description 82
- 230000010412 perfusion Effects 0.000 claims abstract description 48
- 238000007569 slipcasting Methods 0.000 claims abstract description 30
- 239000002002 slurry Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 239000007788 liquid Substances 0.000 claims description 23
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000002775 capsule Substances 0.000 claims description 5
- 229920002472 Starch Polymers 0.000 claims description 4
- 235000019698 starch Nutrition 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 claims description 3
- 239000011440 grout Substances 0.000 claims description 3
- 239000008107 starch Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000009955 starching Methods 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
-
- 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
-
- 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
- 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
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)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of quick grouting devices of segmentation protrusive drilling rod, comprising: more dual pipe drilling rods, each dual pipe drilling rod are concentric two-layer pipe, and circular passage is formed between outer tube and inner tube, and inner tube is hollow structure；Each dual pipe drilling rod is sequentially axially set in injected hole for being segmented, and front and back is sequentially detachably connected and is connected.Drill bit axially offers single-pass hole, is connected with the end of a dual pipe drilling rod of front end, and be connected to.Multiple hydraulic bag perfusion tubes, each hydraulic bag perfusion tube be an open at both ends tube body, with dual pipe drilling rod side by side and fit closely.Hydraulic bag is only starched, is a hollow resilient bladder body, is coated on leading portion outer wall one week of the dual pipe drilling rod of front end, is connected with the hydraulic bag perfusion tube of front end.It, can be under the premise of exiting drilling rod when using the grouting device slip casting, fast sealing pinpoints slip casting at any time, and then revocation sealing continues to drill forward, realizes segmentation protrusive slip casting.
Description
[technical field]
The invention belongs to civil engineering technical field of tunnel construction more particularly to a kind of quick slip castings of segmentation protrusive drilling rod
Device, system and grouting method.
[background technique]
In tunnel and underground engineering construction, often meet with weak water rich strata, be easy to appear excavation face water bursting factor and
Large deformation jeopardizes safety for tunnel engineering.The improvement of rock property is carried out frequently with slip casting method at present, that is, passes through certain pressure for glue
Solidifying property material injection country rock simultaneously consolidates, and filling pore solid soil plays good reinforcing and water plugging effect.
Current main horizontal grouting method is divided to two kinds: i.e. segmentation protrusive slip casting and drilling rod segmentation retrusive slip casting.Point
The applicable formation condition of section protrusive slip casting is poor, and a large amount of Sands or collapse hole are encountered in boring procedure can not seriously continue
Drilling exits drilling rod and carries out slip casting, after improving this section of country rock, creep into the hole again, deepen drilling paragraph by paragraph, until reaching design
Drilling depth carries out last time and exits drilling rod and slip casting, completes the design slip casting task in the hole.The method slip casting effect compared with
It is good, but repetition boring work amount is big, and overall grouting amount is big, and injecting paste material loss is more, and the duration is longer.
[summary of the invention]
The object of the present invention is to provide a kind of quick grouting device of segmentation protrusive drilling rod, system and grouting method, slip castings
When, it can be under the premise of not exiting drilling rod, fast sealing pinpoints slip casting at any time, and then revocation sealing continues to drill forward, real
Now it is segmented protrusive slip casting.
The invention adopts the following technical scheme: a kind of quick grouting device of segmentation protrusive drilling rod, comprising:
More dual pipe drilling rods, each dual pipe drilling rod is concentric two-layer pipe, and inner tube is hollow structure,
Circular passage is formed between outer tube and inner tube；Each dual pipe drilling rod sequentially axially pierces in injected hole, can between each
Dismantling connection；The dual pipe drilling rod of one of rearmost end is for connecting external slurries or high pressure water and wind feed system；It is fixed
Before being in justice drilling, after being outside.
Drill bit axially offers single-pass hole, is connected with the end of the dual pipe drilling rod of front end, and be connected to；
Multiple hydraulic bag perfusion tubes, each hydraulic bag perfusion tube are consistent with the length of a dual pipe drilling rod；For being segmented
It is sequentially axially set in injected hole, front and back is sequentially detachably connected and is connected, and fits closely with the dual pipe drilling rod；
The hydraulic bag perfusion tube of rearmost end is used for and electric hydraulic pump piping connection；
Hydraulic bag is only starched, is a hollow resilient bladder body, is coated on outside the leading portion of the dual pipe drilling rod of front end
It wall one week, connect and is connected with the hydraulic bag perfusion tube of front end；It is tight with borehole sidewall when being filled with liquid in cystidium
Closely connected conjunction forms seal area in the front of drilling.
Further, it should only fit closely in slurry hydraulic bag front end and the rear end of drill bit.
It further, should only for slurry hydraulic bag when be in contraction state, length be not less than 2m, and width is less than the drill bit
The widest part at least 2cm.
Further, a semi-circular recesses are provided in the axial direction on the outer wall of each dual pipe drilling rod, are used for clamping
The hydraulic bag perfusion tube；The internal diameter of each groove is consistent with the diameter of the hydraulic bag perfusion tube.
Further, pass through quick coupling phase between each adjacent dual pipe drilling rod, adjacent hydraulic bag perfusion tube
Connection.
Further, it is covered at the quick coupling between each adjacent dual pipe drilling rod, adjacent hydraulic bag perfusion tube
Equipped with a rubber sleeve.
Further, a single tube is integrally communicated between a dual pipe drilling rod and drill bit for bottom hole.
The invention also discloses a kind of quick grouting systems of segmentation protrusive drilling rod, including a kind of above-mentioned segmentation protrusive
The quick grouting device of drilling rod, further includes:
High pressure water and wind feed system, when drilling, described in one of the high pressure water supply system and rearmost end
The outer tube piping connection of dual pipe drilling rod；The high-pressure blast feed system and inner tube piping connection；
Slurries machine, the inner and outer tubes piping connection when infusing double slurries, with a dual pipe drilling rod of rearmost end；
Electric hydraulic pump is detachably connected with a hydraulic bag perfusion tube pipeline of rearmost end, for stopping to described
Slurries pressure is intracapsular to be filled with liquid.
The invention also discloses a kind of quick grouting methods of segmentation protrusive drilling rod, are advanced using a kind of above-mentioned segmentation stated
The quick grouting device of formula drilling rod, the grouting method are as follows:
Step 1: by high pressure water and wind feed system and first dual pipe drilling rod piping connection, starting favourable turn, In
Position is arranged to drill；
Step 2: separately taking the dual pipe drilling rod and hydraulic bag defeated after drilling to the depth of the root dual pipe drilling rod
Liquid pipe in hole the dual pipe drilling rod and hydraulic bag perfusion tube be connected, continue to drill, until the root dual pipe drilling rod
Then depth successively continues to be sequentially connected with each dual pipe drilling rod；After drilling to projected depth, stop drilling, directly
Execute step 4；When occurring the prominent mud of water burst or collapse hole in boring procedure, step 3 is executed；
Step 3: the dual pipe drilling rod to link together is exited 20-30cm towards aperture side, by electric hydraulic pump
It is connect with the entrance pipe of the hydraulic bag perfusion tube close to aperture, starts, liquid is passed sequentially through into the more hydraulic bags
Hydraulic bag is only starched in perfusion tube input, until its volume expansion is affixed on borehole sidewall, before the only slurry hydraulic bag and drilling after expansion
End spaces form seal area, until pressure is at least 1.5 times of design grouting pressure, stop filling liquid；
Step 4: remove high pressure water and wind feed system, by entering for slip casting machine and the dual pipe drilling rod in close aperture
Mouth piping connection, starting make slurries pass sequentially through the more dual pipe drilling rods and drill bit, inject seal area, until slurries are solidifying
Gu；It is then discharged out the only slurries and presses intracapsular liquid, make it restore to contraction state；
Step 5: step 1~step 4 is repeated, until drilling to projected depth.
The beneficial effects of the present invention are:
1. realizing a cleaning bottom of hole to projected depth, avoids repetition drilling and repeatedly move back the work of drilling rod, greatly reduce
Workload, improves mortar depositing construction speed.
2. utilizing the direct slip casting of drilling rod, the procedure connection of boring work and slip casting work is simplified, speed of application is faster.
3. forming only slurry enclosed area at drill bit, slurries diffusion zone is small, and the specific aim and accuracy of local slip casting are high, office
Portion's slip casting effect is more secure, reduces slurries loss indirectly.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram of the embodiment of the present invention.
Fig. 2 is the structural schematic diagram of Construction State of the embodiment of the present invention.
Fig. 3 is the enlarged section of dual pipe drilling rod.
Wherein: 1, stop and starches hydraulic bag, 2, hydraulic bag perfusion tube, 3, rubber sleeve, 4, quick coupling, 5, electric hydraulic pump, 6,
Pressure gauge, 10, drill bit, 11, dual pipe drilling rod.
[specific embodiment]
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the invention discloses a kind of quick grouting devices of segmentation protrusive drilling rod, as shown in Figure 1,2 and 3, comprising:
More dual pipe drilling rods 11, each dual pipe drilling rod 11 are concentric two-layer pipe, and both ends are open-like shape, during inner tube is
Hollow structure forms circular passage between outer tube and inner tube；Each dual pipe drilling rod 11 is sequentially axially set in slip casting for being segmented
In hole, front and back is sequentially detachably connected and is connected, a dual pipe drilling rod 11 of rearmost end for connect external slurries or
High pressure water and wind feed system；Before being in definition drilling, after being outside.It can be arranged by section gap between inner tube and outer tube
Partition is connected.For the safety of slip casting, check valve can be installed in circular passage and the front end of inner tube.For slurries are injected
Drilling is arranged drill bit 10, axially offers single-pass hole, be connected with the end of a dual pipe drilling rod 11 of front end in hole,
And it is connected to.
Multiple hydraulic bag perfusion tubes 2, each hydraulic bag perfusion tube 2 are consistent with the length of a dual pipe drilling rod 11；For
Segmentation is sequentially axially set in injected hole, and front and back is sequentially detachably connected and is connected, and is closely pasted with dual pipe drilling rod 11
It closes；The hydraulic bag perfusion tube 2 of rearmost end is used for and 5 piping connection of electric hydraulic pump；Hydraulic bag 1 is only starched, is a hollow elasticity
Cystidium is coated on leading portion outer wall one week of the dual pipe drilling rod 11 of front end, the hydraulic bag perfusion tube 2 with front end
It connects and is connected；It when being filled with liquid in cystidium, is fitted closely with borehole sidewall, forms seal area in the front of drilling.
Front end and the rear end of drill bit 10 fit closely；When being filled with liquid in cystidium, cystidium is radially expanded along drilling；With drilling side
Wall fits closely, and forms seal area in the front of drilling.When releasing liquid, cystidium reverts to contraction state.Only slurries pressure
When capsule 1 is in contraction state, only starches 1 length of hydraulic bag and be not less than 2m, width is less than the widest part at least 2cm of drill bit 10.With
During cleaning bottom of hole, hole slag can be smoothly discharged from hole wall gap；After only starching 1 volume expansion of hydraulic bag, closely drill bit 10,
The area Zhi Jiang is formed with drilling front end, slurries is avoided to form induration in hole wall gap, influences to continue hole drilling deslagging；Only slurries pressure
1 length of capsule is greater than 2m, to have enough only slurry sealabilities after expanding.
A semi-circular recesses are provided in the axial direction on the outer wall of each dual pipe drilling rod 11, are used for clamping hydraulic bag perfusion tube
2；The internal diameter of each groove is consistent with the diameter of hydraulic bag perfusion tube 2.
It is connected by quick coupling between each adjacent dual pipe drilling rod 11, adjacent hydraulic bag perfusion tube 2.Fast quick access
There are many specifications of head, selects the quick coupling for being suitble to pipe connection, selecting is existing finished product.
A rubber is arranged at quick coupling between each adjacent dual pipe drilling rod 11, adjacent hydraulic bag perfusion tube 2
Set 3, is tied tight with rubber sleeve 3 and covers connector.
The invention also discloses a kind of quick grouting systems of segmentation protrusive drilling rod, including a kind of above-mentioned segmentation protrusive
The quick grouting device of drilling rod, further includes: high pressure water and wind feed system, drilling when, high pressure water supply system with it is close
The outer tube piping connection of a piece dual pipe drilling rod 11 in aperture；High-pressure blast feed system and inner tube piping connection；Slurries machine is being infused
Inner and outer tubes piping connection when double slurries, with a dual pipe drilling rod 11 close to aperture outermost end；Electric hydraulic pump 5,
It is detachably connected with 2 pipeline of hydraulic bag perfusion tube close to aperture, for being filled with liquid into only slurry hydraulic bag 1.High pressure
Water, wind feed system and slurries machine are all made of existing equipment, are selected according to the different for example required pressure of construction operating condition, speed etc..
The invention also discloses a kind of quick grouting methods of segmentation protrusive drilling rod, use a kind of above-mentioned segmentation protrusive
The quick grouting device of drilling rod, the grouting method are as follows:
Step 1: by high pressure water and wind feed system and first 11 piping connection of dual pipe drilling rod, starting favourable turn is being set
Seated position drilling；
Step 2: separately taking a dual pipe drilling rod 11 and hydraulic bag defeated after drilling to the depth of the root dual pipe drilling rod 11
Liquid pipe 2 in hole dual pipe drilling rod 11 and hydraulic bag perfusion tube 2 be connected, continue to drill, until the root dual pipe drilling rod 11
Depth, then successively continue to be sequentially connected with each dual pipe drilling rod 11；After drilling to projected depth, stop drilling, directly
Execute step 4；When occurring the prominent mud of water burst or collapse hole in boring procedure, step 3 is executed；
Step 3: the dual pipe drilling rod 11 to link together is exited 20-30cm towards aperture side, by electric hydraulic pump 5
It is connect with the entrance pipe of the hydraulic bag perfusion tube 2 close to aperture, starts, liquid is passed sequentially through into more hydraulic bag perfusion tubes 2
Hydraulic bag 1 is only starched in input, until its volume expansion is affixed on borehole sidewall, only slurry hydraulic bag 1 and drilling front end space shape after expansion
Stop filling liquid until pressure is at least 1.5 times of design grouting pressure at seal area；
Step 4: high pressure water and wind feed system are removed, by the entrance of slip casting machine and the dual pipe drilling rod 11 close to aperture
Piping connection, starting make slurries pass sequentially through more dual pipe drilling rods 11 and drill bit 10, inject seal area, until grout cures；
It is then discharged out the liquid only starched in hydraulic bag 1, makes it restore to contraction state；
Step 5: step 1~step 4 is repeated, until drilling to projected depth.
It is as follows when Specific construction:
Drilling prepares:
A piece hydraulic bag perfusion tube 2 is embedded in the semi-circular recesses of 11 outer wall of dual pipe drilling rod, and utilizes rubber
Set 3 is tied tight, and hydraulic bag perfusion tube 2 is in an off state with electric hydraulic pump 5 at this time, hydraulic bag perfusion tube 2 and dual pipe drilling rod
11 can be with synchronous rotary；The inner and outer pipes of dual pipe drilling rod 11 high-pressure blast and water have been separately connected；
Bore operation:
High-pressure blast and water are opened, starting drilling machine starts to drill, and after piercing a dual pipe drilling rod 11, extension one new dual
Pipe drilling rod 11；A new hydraulic bag perfusion tube 2 is connected using quick coupling 4 simultaneously, a new hydraulic bag perfusion tube 2 is embedded in newly
In the semi-circular recesses of piece 11 outer wall of dual pipe drilling rod, and newly-increased one piece of rubber sleeve 3 is tied tight；Similarly constantly extend drilling rod and defeated
Liquid pipe increases drilling depth.
Slip casting prepares:
Reach the section length of grouting program design as drilled, directly shuts down；If drilling meets with unfavorable geology feelings suddenly
Condition, such as water burst are dashed forward mud or collapse hole, then retreat drilling rod 2m shutdown；
Hydraulic bag perfusion tube 2 is connected with electric hydraulic pump 5 by quick coupling 4, starts electric hydraulic pump 5, passes through
The injection liquid into only slurry hydraulic bag 1 of hydraulic bag perfusion tube 2 makes its volume expansion, until the reading of pressure gauge 6 reaches design note
1.5 times for starching pressure form good sealing and stop slurry, form seal area with drilling front end；Dual pipe drilling rod 11 is removed to connect
High-pressure blast and water, be connected with slip casting machine.
Slip casting operation:
Rapid hardening slurries are injected into sealing area by slip casting machine, such as polyurethane or cement-sodium silicate double liquid, to
This section of Cementer work terminates, and after grout cures, the liquid in hydraulic bag 1 is only starched in discharge, its is made to restore contraction state.
It repeats aforesaid operations segmentation advance and carries out bore operation and slip casting operation, until reaching design drilling depth, complete
The design slip casting requirement in this hole.
Claims (8)
1. a kind of quick grouting device of segmentation protrusive drilling rod characterized by comprising
More dual pipe drilling rods (11), each dual pipe drilling rod (11) are concentric two-layer pipe, and inner tube is hollow
Structure forms circular passage between outer tube and inner tube；Each dual pipe drilling rod (11) is sequentially axial to be pierced in injected hole,
It is detachably connected between each；The dual pipe drilling rod (11) of one of rearmost end is for connecting external slurries or high pressure water and wind
Feed system；Before being in definition drilling, after being outside；
Drill bit (10), axially offers single-pass hole, is connected with the end of the dual pipe drilling rod (11) of front end, and even
It is logical；
Multiple hydraulic bag perfusion tubes (2), the length phase one of each the hydraulic bag perfusion tube (2) and a dual pipe drilling rod (11)
It causes；It is sequentially axially set in injected hole for being segmented, front and back is sequentially detachably connected and is connected, and bores with the dual pipe
Bar (11) fits closely；The hydraulic bag perfusion tube (2) of rearmost end is used for and electric hydraulic pump (5) piping connection；
Hydraulic bag (1) only is starched, is a hollow resilient bladder body, is coated on the leading portion of the dual pipe drilling rod (11) of front end
It outer wall one week, connect and is connected with the hydraulic bag perfusion tube (2) of front end；When being filled with liquid in cystidium, only
Slurry hydraulic bag (1) is radially expanded along drilling, is fitted closely with borehole sidewall, forms seal area in the front of drilling.
2. a kind of quick grouting device of segmentation protrusive drilling rod according to claim 1, which is characterized in that the only slurries
The front end and the rear end of the drill bit (10) for pressing capsule (1) fit closely, when it is described only starch hydraulic bag (1) and be in contraction state when,
Its length is not less than 2m, and width is less than the widest part at least 2cm of the drill bit (10).
3. a kind of quick grouting device of segmentation protrusive drilling rod according to claim 2, which is characterized in that each described double
A semi-circular recesses are provided in the axial direction on the outer wall of pipe drilling rod (11) again, for hydraulic bag perfusion tube (2) described in clamping；Each institute
The internal diameter for stating groove is consistent with the diameter of the hydraulic bag perfusion tube (2).
4. a kind of quick grouting device of segmentation protrusive drilling rod according to claim 3, which is characterized in that each adjacent institute
It states and is connected by quick coupling between dual pipe drilling rod (11), adjacent hydraulic bag perfusion tube (2).
5. a kind of quick grouting device of segmentation protrusive drilling rod according to claim 4, which is characterized in that each adjacent institute
It states and is arranged with a rubber sleeve (3) at the quick coupling between dual pipe drilling rod (11), adjacent hydraulic bag perfusion tube (2).
6. a kind of quick grouting device of segmentation protrusive drilling rod according to claim 5, which is characterized in that the one of bottom hole
A single tube is integrally communicated between dual pipe drilling rod (11) and drill bit (10) described in root.
7. a kind of quick grouting system of segmentation protrusive drilling rod, which is characterized in that including of any of claims 1-6
A kind of quick grouting device of segmentation protrusive drilling rod, further includes:
High pressure water and wind feed system, when drilling, one of the high pressure water supply system and rearmost end is described dual
The outer tube piping connection of pipe drilling rod (11)；The high-pressure blast feed system and inner tube piping connection；
Slurries machine, the inner and outer tubes piping connection when infusing double slurries, with the rearmost end one dual pipe drilling rod (11)；
Electric hydraulic pump (5) is detachably connected with hydraulic bag perfusion tube (2) pipeline of rearmost end, is used for described
Only liquid is filled in slurry hydraulic bag (1).
8. the quick grouting method of a kind of segmentation protrusive drilling rod, before a kind of segmentation of any of claims 1-6
Into the quick grouting device of formula drilling rod, which is characterized in that the grouting method is as follows:
Step 1: by high pressure water and wind feed system and first dual pipe drilling rod (11) piping connection, starting favourable turn, In
Position is arranged to drill；
Step 2: drilling is to after the depth of the root dual pipe drilling rod (11), separately taking dual pipe drilling rod (11) and hydraulic
Capsule perfusion tube (2) in hole the dual pipe drilling rod (11) and hydraulic bag perfusion tube (2) be connected, continue to drill, until should
The depth of root dual pipe drilling rod (11) then successively continues to be sequentially connected with each dual pipe drilling rod (11)；When drilling is to setting
After counting depth, stop drilling, directly execution step 4；When occurring the prominent mud of water burst or collapse hole in boring procedure, step 3 is executed；
Step 3: the dual pipe drilling rod (11) to link together is exited 20-30cm towards aperture side, by electric hydraulic pump
(5) it is connect with the entrance pipe of the hydraulic bag perfusion tube (2) close to aperture, starts, liquid is passed sequentially through described in more
Hydraulic bag perfusion tube (2) input only starches hydraulic bag (1), until its volume expansion is affixed on borehole sidewall, the only slurries after expansion
It presses capsule (1) and drilling front end space to form seal area, until pressure at least designs 1.5 times of grouting pressure, stops filling liquid；
Step 4: remove high pressure water and wind feed system, by entering for slip casting machine and dual pipe drilling rod (11) in close aperture
Mouth piping connection, starting make slurries pass sequentially through the more dual pipe drilling rods (11) and drill bit (10), inject seal area, directly
To grout cures；The liquid being then discharged out in only slurry hydraulic bag (1), makes it restore to contraction state；
Step 5: step 1~step 4 is repeated, until drilling to projected depth.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472810A (en) * | 2020-04-15 | 2020-07-31 | 高军 | High-pressure grouting device and method based on weak broken surrounding rock |
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| CN111472810B (en) * | 2020-04-15 | 2021-07-06 | 高军 | High-pressure grouting device and method based on weak broken surrounding rock |
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