CN104314587B - Fixed point control territory grouting device and grouting process - Google Patents
Fixed point control territory grouting device and grouting process Download PDFInfo
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- CN104314587B CN104314587B CN201410583454.6A CN201410583454A CN104314587B CN 104314587 B CN104314587 B CN 104314587B CN 201410583454 A CN201410583454 A CN 201410583454A CN 104314587 B CN104314587 B CN 104314587B
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- grouting
- grouting pipe
- pipe
- slip casting
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000011440 grout Substances 0.000 claims abstract description 63
- 238000007569 slipcasting Methods 0.000 claims abstract description 62
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000004568 cement Substances 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000002002 slurry Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 238000003466 welding Methods 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 11
- 230000014759 maintenance of location Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 5
- 239000004746 geotextile Substances 0.000 claims description 5
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 210000005239 tubule Anatomy 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 208000005189 Embolism Diseases 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 208000001435 Thromboembolism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 210000002966 serum Anatomy 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
-
- 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
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/38—Waterproofing; Heat insulating; Soundproofing; Electric insulating
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Civil Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of fixed point control territory grouting device, including fixing and be each passed through the mould bag Grouting Pipe of aperture fit sealing unit, cement-based grout Grouting Pipe and controlling liquid grout pipe, mould bag Grouting Pipe is provided with at least one and is enclosed within its outside mould bag, mould bag internal mold bag Grouting Pipe tube wall offers some extravasating hole pasting aluminium flake, when mould bag quantity is more than one, there is spacing between mould bag, and this spacing section just slip casting position crucial with injected hole is corresponding；Cement-based grout Grouting Pipe and control liquid grout pipe end are communicated to blender, and blender connects pulp short tube, and pulp short tube grout outlet slip casting position crucial with injected hole is corresponding.The present invention also discloses the grouting process utilizing this device.Present invention achieves the fixed point control territory slip casting of slip casting key position, by mixing in biliquid hole, it is ensured that the dual slurry mobility when initial injection stratum, promote serosity to be sufficiently injected at crucial slip casting position, improve Grouting engineering whole structure.
Description
Technical field
The invention belongs to the underground engineering grouting and reinforcing such as mine, tunnel, water-plugging technique, especially a kind of fixed point controls territory grouting device and grouting process.
Background technology
At present, in the underground engineering construction such as mine, tunnel, often there is the problems such as surrouding rock deformation is big, water yield is big, gushing water even can be occurred to dash forward mud disaster, cause huge personnel's property loss.Slip casting obtains as a kind of effective means a kind of reinforced weak surrounding rock, administer water damage and is increasingly widely applied in underground engineering disasters is administered.Slip casting practice have shown that, affect some crucial geology sections often of grouting and reinforcing or water plugging effect, as big containing water producing fractures, reduction stage, Karst corridor, injected hole deep regional (i.e. the section of slip casting hole depth >=20m) etc., if these locations can not be effectively improved, the waste and the construction quality that often result in serosity are on the low side.In tradition grouting process, the slip casting of naked hole ignores the importance of key position fixed point slip casting, and the biliquid mixing in aperture causes serosity initial set before key position, has blocked the mixed serum abundant diffusion at key position, has seriously constrained slip casting effectiveness.
Chinese patent application CN102003189A discloses a kind of Quick uniform and reinforces mould bag grouting method and the device of soft stratum, and it has once grouting unit and secondary grouting unit；The tube wall of the Grouting Pipe (1) of secondary grouting unit has some slurry outlets (2), the Grouting Pipe (1) of secondary grouting unit is nested with mould bag (3) and by mould bag two ends banding in Grouting Pipe；Being nested with the preload unit being made up of backing plate (7) and nut (8) on secondary grouting unit Grouting Pipe (1) of orifice position, the other end of secondary grouting unit Grouting Pipe (1) is connected with secondary grouting pipeline by both sides ball valve；Once grouting unit has the grouting device that double; two capsule slip casting thromboembolism (14), the defeated slurry steel pipe (17) of once grouting unit and handlance are constituted.This invention has the disadvantage that (1) is only used for single fluid grouting, it is impossible to perfusion dual slurry, does not especially have the function of biliquid mixing in hole；(2) Grouting Pipe 1 is fixing by quick-hardening cement volume, is only used for the hole depth bored grouting less than 10m, it is impossible to complete any deep drilling slip casting.
Chinese patent application CN102979478A discloses a kind of water burst drilling holes antipriming, including sealing sleeve pipe, little grouting pipeline, described sealing sleeve pipe is respectively equipped with grout outlet I on the wall at two ends, grout outlet II, described grout outlet I, the circular hole of grout outlet II is vertically on the same line, grout outlet I, grout outlet II is connected with slip casting tubule, slip casting tubule is located in sealing sleeve pipe, slip casting tubule is connected with little grouting pipeline, little grouting pipeline is connected with grouting pump, sealing sleeve pipe periphery is provided with cylinder pattern bag, mould bag diameter is more than sealing casing diameter, grout outlet I is stretched out at mould bag two ends respectively, it is connected with the water-baffling sleeve seal of tube after grout outlet II, cavity is formed between mould bag and sealing sleeve pipe.This invention has the disadvantage that (1) this invention mainly solves aperture sealing problem, is not directed to slip casting field；(2) slip casting tubule is positioned at inside sleeve pipe, and boring sealing grouting behind shaft or drift lining tubule can not be extracted, and have impact on next step construction of boring, is also unfavorable for the control discharge of boring retention of excessive fluid；(3) not disposing hooping device between cylindrical shape mould bag and sleeve pipe, and simply simply tie up, easily causing mould bag in work progress comes off or mould bag port running pulp, does not reach stagnant water effect.
Summary of the invention
It is an object of the invention to as overcoming above-mentioned the deficiencies in the prior art, it is provided that a kind of fixed point control territory grouting device and grouting process, enable Grouting engineering to limit key area serosity diffusion space, improve grouting in rock mass and reinforce or water plugging effect, reduce engineering cost.
For achieving the above object, the present invention adopts following technical proposals:
A kind of fixed point control territory grouting device, including fixing and be each passed through the mould bag Grouting Pipe of aperture fit sealing unit, cement-based grout Grouting Pipe and controlling liquid grout pipe, mould bag Grouting Pipe is provided with at least one and is enclosed within its outside mould bag, the tube wall of the mould bag Grouting Pipe in mould bag offers some extravasating hole pasting aluminium flake, when mould bag quantity is more than one, there is spacing between mould bag, and this spacing section is just corresponding with the crucial slip casting position in injected hole；The end of cement-based grout Grouting Pipe and control liquid grout pipe is communicated to blender, blender connects pulp short tube, and the grout outlet of pulp short tube is corresponding with the crucial slip casting position in injected hole.
Described fit sealing unit includes orifice tube, aperture flange, clamp flange and lets out water control valve, orifice tube is used for being locked in inside injected hole, aperture flange welding is in orifice tube end, clamp flange is fixedly installed on the flange of aperture, offering five holes on clamp flange, wherein three holes are passed for mould bag Grouting Pipe, cement-based grout Grouting Pipe and control liquid grout pipe and are welded and fixed, and two other is discharge orifice, leak-off pipe is installed in discharge orifice, leak-off pipe is provided with and lets out water control valve.
Described mould bag quantity is two, and one of them is sheathed on the outside near mould bag Grouting Pipe end, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 0.1 ~ 0.3MPa grouting pressure；Another is sheathed on the outside near mould bag Grouting Pipe front end, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 1 ~ 1.5MPa grouting pressure；Mould bag is processed by geotextiles, is fixed by banding device between termination and the mould bag Grouting Pipe of mould bag.
Described mould bag quantity is one, and mould bag is sheathed on outside the mould bag Grouting Pipe that blender is anterior, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 1 ~ 1.5MPa grouting pressure；Mould bag is processed by geotextiles, is fixed by banding device between termination and the mould bag Grouting Pipe of mould bag.
Described extravasating hole is step-like.
Described banding device is drilled with welding manner connection mode bag Grouting Pipe circular hole, step-like disk is processed in banding device edge, step is drilled with fixing hole, and on periphery, processes annular recess, fixing hole and the groove termination respectively through flange and high-strength rubber ring banding mould bag.
Described banding device is drilled with respectively with welding manner connection mode bag Grouting Pipe, cement-based grout Grouting Pipe and 3 circular holes controlling liquid grout pipe, step-like disk is processed in banding device edge, step is drilled with fixing hole, and on periphery, process annular recess, fixing hole and the groove termination respectively through flange and high-strength rubber ring banding mould bag.
Described cement based Grouting Pipe, control liquid grout pipe and mould bag Grouting Pipe are fixed by the first snap close, first snap close is provided with three for cement based Grouting Pipe, the hole controlling liquid grout pipe and mould bag Grouting Pipe traverse, each Kong Shangjun offers the opening extended to outside described snap close, and opening part is provided with bolt hole；And three holes and for cement based Grouting Pipe, control to be provided with rubber blanket between liquid grout pipe and mould bag Grouting Pipe.
Described pulp short tube and mould bag Grouting Pipe are being reinforced or water blockoff position is fixed with the second snap close, it is prevented that cement based Grouting Pipe in hole, control liquid grout pipe and fracture in putting into injected hole process damage；Being provided with two holes for pulp short tube and mould bag Grouting Pipe traverse in second snap close, each Kong Shangjun offers the opening extended to outside described snap close, and opening part is provided with bolt hole；And it is provided with rubber blanket between two holes and confession pulp short tube and mould bag Grouting Pipe.
A kind of fixed point control territory grouting process, the steps include:
(1) injected hole is constructed to 3 ~ 5m, utilize cement-sodium silicate double liquid sealing orifice tube, soldered vias flange, work progress runs into containing after the slip casting key positions such as water producing fractures, reduction stage, Karst corridor, record key position position, and withdraw from drilling equipment；
(2) according to key position position processing fixed point control territory device, and device is properly placed in injected hole；By bolt, clamp flange is fixed on the flange of aperture, by welding manner, cement based Grouting Pipe, control liquid grout pipe, mould bag Grouting Pipe is fixed on clamp flange；Connect grouting equipment；If there being retention of excessive fluid in injected hole, then open drain valve, retention of excessive fluid in discharge injected hole；If slip casting key position is positioned at the bottom of injected hole, then adopting mould bag quantity is a fixed point control territory device；
(3) by mould bag Grouting Pipe to injecting serosity in the mould bag of mould bag Grouting Pipe end, grouting pressure controls in 1 ~ 1.5MPa, does not substantially enter slurry, terminate slip casting after stablizing 5 ~ 10min；Raise grouting pressure to 1 ~ more than 1.5MPa, wash the aluminium flake covered in the mould bag Grouting Pipe of mould bag Grouting Pipe front end open, carry out this part mould bag slip casting, substantially slurry is not entered after stablizing 5 ~ 10min, terminate slip casting, the blocker unit being now made up of the mould bag of slip casting before and after slip casting key position intercepts, and is in closed state；
(4) open cement-based grout Grouting Pipe and control slurry-inlet valve on liquid grout pipe, starting grouting device；After cement-based grout and the control blended device of liquid, it is sufficiently mixed at slip casting key position, comes into effect control territory slip casting；After slip casting reaches ending standard, open the relief valve of grouting pipeline successively, close slurry-inlet valve, complete slip casting；
(5) dismounting, detergent line.
The invention has the beneficial effects as follows:
(1) self adaptation being made up of the mould bag being enclosed within outside mould bag Grouting Pipe is utilized only to starch packer, it is possible to make serosity be limited in the diffusion And Movement of slip casting key position；
(2) self adaptation only slurry packer is suitable for different shape of hole wall, extrudes hole wall rock mass simultaneously when propping up, improves hole wall rock mass strength and impermeability, it is to avoid around the generation of slurry situation after wall；
(3) (namely in blender) mixing in the hole of dual slurry (i.e. cement based and control liquid) is achieved, prevent aperture mixing the dual slurry gel in migration process, deposited phenomenon in injected hole, ensure that the dual slurry mobility when initial injection stratum, promote serosity to be sufficiently injected at slip casting key position.
(4) it is widely used, can be applicable to the closure of the target area of the big scale of construction retention of excessive fluid of the slip casting of injected hole deep, big crack or pipe and improvement and slip casting checks that hole weakness band supplements grouting for water blocking and reinforcing.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram；
Fig. 2 a, Fig. 2 b are I type banding device side view and front views；
Fig. 3 a, Fig. 3 b are II type banding device view and front views；
Fig. 4 is II type snap close profile；
Fig. 5 is I type snap close profile；
Fig. 6 a, Fig. 6 b are mounting flange side view and front view；
nullWherein，The preposition obstruct part of 1a、The rearmounted obstruct part of 1b、1-1 mould bag Grouting Pipe、1-1-1 extravasating hole、1-1-2 aluminium flake、1-2a I type banding device、1-2b II type banding device、1-2a-1 I type banding device fixing hole、1-2a-2 I type banding device annular recess、1-2b-1 II type banding device fixing hole、1-2b-2 II type banding device annular recess、1-2a-3 I type banding device flange、The 1-2a-4 I type high-strength rubber ring of banding device、1-2b-3 II type banding device flange、The 1-2b-4 II type high-strength rubber ring of banding device、1-2a-5 the first circular hole、1-2b-5a the second circular hole、1-2b-5b the 3rd circle、1-2b-5c the 4th circular hole、1-3b I type snap close、1-3a II type snap close、1-3a-1 the first breach、1-3b-1 the second breach、1-3a-2 the first rubber blanket、1-3b-2 the second rubber blanket、1-3a-3 first fastens bolt、1-3b-3 second fastens bolt、1-4 mould bag、2-1 cement-based grout Grouting Pipe、2-2 controls liquid grout pipe、2-3 blender、2-4 pulp short tube、2-5a the first slurry-inlet valve、2-5b slurry-inlet valve、2-6a the first relief valve、2-6b the second relief valve、3-1 orifice tube、3-2 aperture flange、3-3 clamp flange、3-4 lets out water control valve、3-3-1a wears cement based Grouting Pipe circular hole、3-3-1b wears control liquid grout pipe circular hole、3-3-1c wears mould bag Grouting Pipe circular hole、3-3-2 discharge orifice.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described.
As it is shown in figure 1, a kind of fixed point control territory grouting device, there is self adaptation and only starch mixing two fluid grouting unit, aperture fit sealing unit in blocker unit, hole.Described self adaptation only slurry blocker unit is made up of preposition obstruct part 1a and rearmounted obstruct part 1b, by mould bag Grouting Pipe 1-1, banding device, snap close, mould bag 1-4 composition.Mix two fluid grouting unit in described hole to be made up of cement-based grout Grouting Pipe 2-1, control liquid grout pipe 2-2, blender 2-3, pulp short tube 2-4, slurry-inlet valve and relief valve.Described aperture fit sealing unit is by orifice tube 3-1, aperture flange 3-2, clamp flange 3-3 and lets out water control valve 3-4 and forms.
As it is shown in figure 1, mould bag Grouting Pipe 1-1 is by steel pipe manufacturing, tube wall is drilled with the step-like extravasating hole 1-1-1 of many groups, and extravasating hole covers in the way of pasting aluminium flake 1-1-2.Mould bag 1-4 it is nested with outside described extravasating hole 1-1-1；Described mould bag 1-4 is processed by geotextiles, is fixed by I type banding device 1-2a and II type banding device 1-2b between termination and the mould bag Grouting Pipe of mould bag 1-4.
As it is shown in figure 1, described preposition obstruct part 1a and rearmounted obstruct part 1b is connected by mould bag Grouting Pipe 1-1, preposition obstruct part 1a and rearmounted obstruct part 1b centre portion are crucial slip casting position.
As shown in Figure 1, Figure 2 shown in a, Fig. 2 b, described banding device includes I type banding device 1-2a and II type banding device 1-2b.I described type banding device 1-2a is built in preposition obstruct part 1a, it is drilled with the first circular hole 1-2a-5 with welding manner connection mode bag Grouting Pipe 1-1.Step-like disk is processed in described I type banding device 1-2a edge, step is drilled with fixing hole 1-2a-1, and processes annular recess 1-2a-2 on periphery.Described fixing hole 1-2a-1 and groove 1-2a-2 is respectively through flange 1-2a-3 and high-strength rubber ring 1-2a-4 banding mould bag termination.Extravasating hole aluminium flake 1-1-2 on preposition obstruct part 1a internal mold bag Grouting Pipe 1-1 can resist 0.1 ~ 0.3MPa grouting pressure.
As shown in Fig. 1, Fig. 3 a, Fig. 3 b, II described type banding device 1-2b is built in rearmounted obstruct part 1b, it is drilled with 3 circular holes (respectively the second circular hole 1-2b-5a, the 3rd circle 1-2b-5b, the 4th circular hole 1-2b-5c), respectively with welding manner connection mode bag Grouting Pipe 1-1, cement-based grout Grouting Pipe 2-1 and control liquid grout pipe 2-2.Step-like disk is processed in described II type banding device 1-2b edge, step is drilled with fixing hole 1-2b-1, and processes annular recess 1-2b-2 on periphery.Described fixing hole 1-2b-1 and groove 1-2b-2 is respectively through flange 1-2b-3 and high-strength rubber ring 1-2b-4 banding mould bag termination.Extravasating hole aluminium flake 1-1-2 on rearmounted obstruct part 1b internal mold bag Grouting Pipe 1-1 can resist 1 ~ 1.5MPa grouting pressure.
As it is shown in figure 1, described cement-based grout Grouting Pipe 2-1 and control liquid grout pipe 2-2 is by steel pipe manufacturing, connects with welding manner in reinforcing or water blockoff position, and be connected with blender 2-3.Described cement-based grout Grouting Pipe 2-1 is connected with the first slurry-inlet valve 2-5a and the first relief valve 2-6a outside aperture.Described control liquid grout pipe 2-2 is connected with the second slurry-inlet valve 2-5b and the second relief valve 2-6b outside aperture.Described blender 2-3 end connects pulp short tube 2-4.
As it is shown in figure 1, described snap close includes I type snap close (i.e. the first snap close) 1-3b and II type snap close (i.e. the second snap close) 1-3a.Described cement based Grouting Pipe 2-1, control liquid grout pipe 2-2, mould bag Grouting Pipe 1-1 are fixed by I type snap close 1-3b in rearmounted obstruct part 1b；Described pulp short tube 2-4 and mould bag Grouting Pipe 1-1 are reinforcing or water blockoff position is fixed with II type snap close 1-3a, it is prevented that, mixing slip casting unit fractures damage in putting into injected hole process in the hole in.
As shown in Fig. 1,4,5, I described type snap close 1-3b and II type snap close 1-3a all leaves the first breach 1-3a-1 and the second breach 1-3b-1, and difference built-in first rubber blanket 1-3a-2 and the second rubber blanket 1-3b-2 between steel pipe, fastens bolt 1-3a-3 and the second fastening bolt 1-3b-3 banding by first.
As it is shown in figure 1, described orifice tube 3-1 is made by geological tube, it is locked in inside injected hole.Described aperture flange 3-2 is welded on orifice tube end.
As shown in Fig. 1, Fig. 6 a, Fig. 6 b, 3 circular holes 3-3-1a, 3-3-1b, 3-3-1c of corresponding banding device position processing on described clamp flange 3-3, make cement based Grouting Pipe, control liquid grout pipe, mould bag Grouting Pipe traverse, and be welded and fixed through bolt and orifice tube.
As shown in Fig. 1, Fig. 6 a, Fig. 6 b, described clamp flange is processed 2 discharge orifice 3-3-2, described discharge orifice 3-3-2 and is connected with letting out water control valve 3-4 by steel pipe.Come into effect slip casting.
A kind of fixed point control territory grouting process, the steps include:
(1) injected hole is constructed to 3 ~ 5m, utilize cement-sodium silicate double liquid sealing orifice tube, soldered vias flange, work progress runs into containing after the slip casting key positions such as water producing fractures, reduction stage, Karst corridor, record key position position, and withdraw from drilling equipment；
(2) according to key position position processing fixed point control territory device, and device is properly placed in injected hole；By bolt, clamp flange is fixed on the flange of aperture, by welding manner, cement based Grouting Pipe, control liquid grout pipe, mould bag Grouting Pipe is fixed on clamp flange；Connect grouting equipment；If there being retention of excessive fluid in injected hole, then open drain valve, retention of excessive fluid in discharge injected hole；If slip casting key position is positioned at the bottom of injected hole, then adopting mould bag quantity is a fixed point control territory device；
(3) by mould bag Grouting Pipe to injecting serosity in the mould bag of mould bag Grouting Pipe end, grouting pressure controls in 1 ~ 1.5MPa, does not substantially enter slurry, terminate slip casting after stablizing 5 ~ 10min；Raise grouting pressure to 1 ~ more than 1.5MPa, wash the aluminium flake covered in the mould bag Grouting Pipe of mould bag Grouting Pipe front end open, carry out this part mould bag slip casting, substantially slurry is not entered after stablizing 5 ~ 10min, terminate slip casting, the blocker unit being now made up of the mould bag of slip casting before and after slip casting key position intercepts, and is in closed state；
(4) open cement-based grout Grouting Pipe and control slurry-inlet valve on liquid grout pipe, starting grouting device；After cement-based grout and the control blended device of liquid, it is sufficiently mixed at slip casting key position, comes into effect control territory slip casting；After slip casting reaches ending standard, open the relief valve of grouting pipeline successively, close slurry-inlet valve, complete slip casting；
(5) dismounting, detergent line.
The specific embodiment of the present invention is described in conjunction with accompanying drawing although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme, those skilled in the art need not pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (8)
1. a fixed point control territory grouting device, it is characterized in that, including fixing and be each passed through the mould bag Grouting Pipe of aperture fit sealing unit, cement-based grout Grouting Pipe and controlling liquid grout pipe, mould bag Grouting Pipe is provided with at least one and is enclosed within its outside mould bag, the tube wall of the mould bag Grouting Pipe in mould bag offers some extravasating hole pasting aluminium flake, when mould bag quantity is more than one, there is spacing between mould bag, and this spacing section is just corresponding with the crucial slip casting position in injected hole；The end of cement-based grout Grouting Pipe and control liquid grout pipe is communicated to blender, blender connects pulp short tube, and the grout outlet of pulp short tube is corresponding with the crucial slip casting position in injected hole；
Described fit sealing unit includes orifice tube, aperture flange, clamp flange and lets out water control valve, orifice tube is used for being locked in inside injected hole, aperture flange welding is in orifice tube end, clamp flange is fixedly installed on the flange of aperture, offering five holes on clamp flange, wherein three holes are passed for mould bag Grouting Pipe, cement-based grout Grouting Pipe and control liquid grout pipe and are welded and fixed, and two other is discharge orifice, leak-off pipe is installed in discharge orifice, leak-off pipe is provided with and lets out water control valve；
Described extravasating hole is step-like.
2. fixed point control territory as claimed in claim 1 grouting device, it is characterized in that, described mould bag quantity is two, and one of them is sheathed on the outside near mould bag Grouting Pipe end, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 0.1 ~ 0.3MPa grouting pressure；Another is sheathed on the outside near mould bag Grouting Pipe front end, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 1 ~ 1.5MPa grouting pressure；Mould bag is processed by geotextiles, is fixed by banding device between termination and the mould bag Grouting Pipe of mould bag.
3. fixed point control territory as claimed in claim 1 grouting device, it is characterized in that, described mould bag quantity is one, and mould bag is sheathed on outside the mould bag Grouting Pipe that blender is anterior, and the aluminium flake that the extravasating hole in the mould bag Grouting Pipe at this position covers can resist 1 ~ 1.5MPa grouting pressure；Mould bag is processed by geotextiles, is fixed by banding device between termination and the mould bag Grouting Pipe of mould bag.
4. fixed point controls territory grouting device as claimed in claim 2 or claim 3, it is characterized in that, described banding device is drilled with welding manner connection mode bag Grouting Pipe circular hole, step-like disk is processed in banding device edge, step is drilled with fixing hole, and on periphery, process annular recess, fixing hole and the groove termination respectively through flange and high-strength rubber ring banding mould bag.
5. fixed point controls territory grouting device as claimed in claim 2 or claim 3, it is characterized in that, described banding device is drilled with respectively with welding manner connection mode bag Grouting Pipe, cement-based grout Grouting Pipe and 3 circular holes controlling liquid grout pipe, step-like disk is processed in banding device edge, step is drilled with fixing hole, and on periphery, process annular recess, fixing hole and the groove termination respectively through flange and high-strength rubber ring banding mould bag.
6. fixed point control territory as claimed in claim 1 grouting device, it is characterized in that, described cement based Grouting Pipe, control liquid grout pipe and mould bag Grouting Pipe are fixed by the first snap close, first snap close is provided with three for cement based Grouting Pipe, the hole controlling liquid grout pipe and mould bag Grouting Pipe traverse, each Kong Shangjun offers the opening extended to outside described snap close, and opening part is provided with bolt hole；And three holes and for cement based Grouting Pipe, control to be provided with rubber blanket between liquid grout pipe and mould bag Grouting Pipe.
7. fixed point control territory as claimed in claim 1 grouting device, is characterized in that, described pulp short tube is fixed with the second snap close in reinforcing or water blockoff position with mould bag Grouting Pipe；Being provided with two holes for pulp short tube and mould bag Grouting Pipe traverse in second snap close, each Kong Shangjun offers the opening extended to outside described snap close, and opening part is provided with bolt hole；And it is provided with rubber blanket between two holes and confession pulp short tube and mould bag Grouting Pipe.
8. utilize a fixed point control territory grouting process for device described in claim 2, the steps include:
(1) injected hole is constructed to 3 ~ 5m, utilize cement-sodium silicate double liquid sealing orifice tube, soldered vias flange, work progress runs into containing after water producing fractures, reduction stage and Karst corridor slip casting key position, record key position position, and withdraw from drilling equipment；
(2) according to key position position processing fixed point control territory device, and device is properly placed in injected hole；By bolt, clamp flange is fixed on the flange of aperture, by welding manner, cement based Grouting Pipe, control liquid grout pipe, mould bag Grouting Pipe is fixed on clamp flange；Connect grouting equipment；If there being retention of excessive fluid in injected hole, then open drain valve, retention of excessive fluid in discharge injected hole；If slip casting key position is positioned at the bottom of injected hole, then adopting mould bag quantity is a fixed point control territory device；
(3) by mould bag Grouting Pipe to injecting serosity in the mould bag of mould bag Grouting Pipe end, grouting pressure controls in 1 ~ 1.5MPa, does not enter slurry, terminate slip casting after stablizing 5 ~ 10min；Raise grouting pressure to 1 ~ more than 1.5MPa, wash the aluminium flake covered in the mould bag Grouting Pipe of mould bag Grouting Pipe front end open, carry out this part mould bag slip casting, slurry is not entered after stablizing 5 ~ 10min, terminate slip casting, the blocker unit being now made up of the mould bag of slip casting before and after slip casting key position intercepts, and is in closed state；
(4) open cement-based grout Grouting Pipe and control slurry-inlet valve on liquid grout pipe, starting grouting device；After cement-based grout and the control blended device of liquid, it is sufficiently mixed at slip casting key position, comes into effect control territory slip casting；After slip casting reaches ending standard, open the relief valve of grouting pipeline successively, close slurry-inlet valve, complete slip casting.
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| CN201410583454.6A CN104314587B (en) | 2014-10-27 | 2014-10-27 | Fixed point control territory grouting device and grouting process |
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| CN105200978B (en) * | 2015-10-12 | 2017-08-01 | 山东大学 | A kind of protrusive localization two-liquid grouting device and construction method |
| CN105317396B (en) * | 2015-10-13 | 2018-04-17 | 山东大学 | Slurries mixing arrangement and its application method in a kind of surface grout injection drilling |
| CN106761823B (en) * | 2016-12-07 | 2019-04-02 | 中铁十四局集团有限公司 | Exempt from wall for grouting segmentation cleaning bottom of hole retrusive controlling grouting method |
| CN106837378B (en) * | 2016-12-07 | 2019-01-04 | 中铁十四局集团有限公司 | Exempt from wall for grouting segmentation cleaning bottom of hole retrusive controlling grouting equipment |
| CN107542469A (en) * | 2017-03-29 | 2018-01-05 | 清华海峡研究院（厦门） | A kind of underground mould bag stake method for protecting support |
| CN107551843B (en) * | 2017-09-22 | 2020-04-21 | 山东大学 | Three-dimensional whirl blender device of biliquid slip casting |
| CN108505968A (en) * | 2018-05-10 | 2018-09-07 | 中国地质大学（武汉） | A kind of site-directed quantitative slurry casting machine and system |
| CN109162666B (en) * | 2018-09-17 | 2021-07-02 | 龙口矿业集团有限公司 | Method for directional laying and reinforcing of sleeve and plugging of water inrush zone under deep water condition |
| CN112647893A (en) * | 2020-12-08 | 2021-04-13 | 四川华电泸定水电有限公司 | Construction method for drilling and pouring by adopting double-slurry mixer |
| CN112761174B (en) * | 2020-12-30 | 2021-09-21 | 山东正元建设工程有限责任公司 | Grouting plugging method suitable for large karst cave under high-flow-rate flowing water condition |
| CN114704301A (en) * | 2022-04-08 | 2022-07-05 | 中铁十二局集团第七工程有限公司 | Single-hole multi-pipe synchronous grouting rigid sealing device and method |
| CN114704302A (en) * | 2022-04-08 | 2022-07-05 | 中铁十二局集团第七工程有限公司 | Single-hole multi-section synchronous grouting device and grouting method |
| CN116398185A (en) * | 2023-03-30 | 2023-07-07 | 中铁五局集团有限公司 | Grouting water plugging device and method for water-rich tunnel |
| CN118008198B (en) * | 2024-04-09 | 2024-06-14 | 山东省鲁南地质工程勘察院(山东省地质矿产勘查开发局第二地质大队) | Water stopping device for geological water pumping test |
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| JP2005036576A (en) * | 2003-07-18 | 2005-02-10 | Pacific Consultants Co Ltd | Diagnostic method of deteriorated concrete by water jet |
| CN102003189A (en) * | 2010-12-20 | 2011-04-06 | 中铁隧道集团有限公司 | Mold bag grouting method and device for quickly and uniformly reinforcing soft stratum |
| CN103498684A (en) * | 2013-10-15 | 2014-01-08 | 中铁隧道装备制造有限公司 | Embedded type dual-liquid grouting device achieving synchronization of shield tail of shield machine |
| CN103953365A (en) * | 2014-05-20 | 2014-07-30 | 中铁四局集团有限公司 | Tunnel single-liquid and double-liquid alternate grouting reinforcement process and device |
| CN204152525U (en) * | 2014-10-27 | 2015-02-11 | 山东科技大学 | Fixed point control territory grouting device |
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