CN114991820A - Rotatable deep hole grouting device and grouting method - Google Patents
Rotatable deep hole grouting device and grouting method Download PDFInfo
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- CN114991820A CN114991820A CN202210694497.6A CN202210694497A CN114991820A CN 114991820 A CN114991820 A CN 114991820A CN 202210694497 A CN202210694497 A CN 202210694497A CN 114991820 A CN114991820 A CN 114991820A
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- grouting
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- pipe
- deep hole
- rotatable
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000007569 slipcasting Methods 0.000 claims description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000002689 soil Substances 0.000 claims description 12
- 239000011440 grout Substances 0.000 claims description 11
- 239000011435 rock Substances 0.000 claims description 4
- 238000004064 recycling Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 239000002002 slurry Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 5
- 230000003014 reinforcing effect Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of tunnel grouting, in particular to a rotatable deep hole grouting device and a grouting method, wherein the device comprises a grouting device, the grouting device comprises a grouting pipe and further comprises: the sleeve is detachably connected with the grouting pipe through a connecting thread, the grouting pipe is concentrically arranged in the sleeve, and a motor is further arranged on the sleeve; the quincunx pulp outlet is uniformly formed in the middle of the sleeve; the rotatable deep hole grouting device and the grouting method have the advantages that the structure is novel, the problem of grouting opening blockage is solved, the grouting effect is uniform, and the grouting quality is improved.
Description
Technical Field
The invention relates to the technical field of tunnel grouting, in particular to a rotatable deep hole grouting device and a grouting method.
Background
Along with the continuous development of urban traffic, the construction requirements of underground engineering are increasing day by day, and the problems of stratum loss, pore water loss, soil body disturbance and the like caused by excavation construction of the underground engineering can generate risks of surface subsidence or building deformation and the like, so that deep hole grouting technology can be adopted to reinforce and stop water for deep soil bodies to reduce the occurrence of deformation.
At present, the deep hole grouting method mainly comprises double-pipe grouting, rotary jet grouting, sleeve valve pipe grouting and forward sectional grouting. The slurry mixing ratio can be adjusted through double-pipe grouting, so that the coagulation time of the slurry is adjusted, but the slurry can be dispersed and lost along with time due to the fact that only quick-setting slurry materials can be used, and the effect of long-term water stopping and reinforcing cannot be achieved; the rotary jet grouting comprises horizontal rotary jet grouting and vertical rotary jet grouting, the horizontal rotary jet grouting pressure is high, the rotary jet grouting is only suitable for soft soil strata, the slurry loss rate is high, the surface of the ground is easy to bulge, the drilling depth of the vertical rotary jet grouting is large, and the accuracy and the lap joint between consolidation bodies are not easy to guarantee; the sleeve valve pipe grouting can be performed with constant pressure, quantification and repeated fine grouting, the grouting quality is good, but the construction cost is high, and the construction speed is low. The progressive segmental grouting adopts the form of drilling and grouting alternate operation, one section is drilled and grouted, but a hole pipe and the like need to be installed for grout stopping, the installation and fixation of the grout stopping pipe are complex, the drilling quality is guaranteed with high precision if an anchor rod is used, the control is difficult, and the anchor rod occupies a long time and increases the construction cost if an anchor agent is used.
The existing rotatable deep hole grouting device and grouting method have the defects of single grouting point, fixation, easy blockage, uneven grouting and inconvenient use, so that the rotatable deep hole grouting device and grouting method are urgently needed to be developed aiming at the current situation so as to overcome the defects in the current practical application.
Disclosure of Invention
The invention aims to provide a rotatable deep hole grouting device and a grouting method, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a rotatable formula deep hole slip casting device, includes the slip casting device, the slip casting device still includes including the slip casting pipe:
the sleeve is detachably connected with the grouting pipe through a connecting thread, the grouting pipe is concentrically arranged in the sleeve, and a motor is further arranged on the sleeve;
the quincunx pulp outlet is uniformly formed in the middle of the sleeve; and
and the grouting assembly is respectively connected with the sleeve and the grouting pipe.
A rotatable deep hole grouting method is applied to the rotatable deep hole grouting device, and comprises the following steps:
assembling a grouting device, and concentrically arranging a grouting pipe into a sleeve for threaded connection;
step two, embedding the drilled hole, aligning the assembled grouting device with the grouting hole, starting a motor to enable the grouting device to drill into the grouting hole in a rotating mode, and stopping after the sleeve is completely embedded;
rotating the deep hole for grouting, connecting a grouting pipe with a grouting machine by using a connecting device, adjusting the rotating speed of a motor to 1-2r/min, starting the grouting machine to start rotating grouting, and observing a pressure gauge to adjust the grouting pressure to 3-4 bar;
fourthly, recovering the grouting pipe, adjusting the grouting machine to enable the grouting pressure to be 0.1-0.2bar when the numerical value of the pressure gauge is observed to be 6-7bar, turning off the motor, reversely rotating the grouting pipe through the handle to detach the grouting pipe from the sleeve, and continuing grouting into the sleeve while retreating the grouting pipe;
and step five, stopping grouting, closing a water stop valve on the sleeve when the grouting pipe exits from the sleeve, closing the grouting machine to stop grouting at the same time, and recycling the reversely rotating motor after being detached from the sleeve.
Compared with the prior art, the invention has the beneficial effects that:
(1) the grouting device is reasonable in structural design, can realize rotary deep hole grouting to form a circumferential grouting surface, solves the problem of grouting port blockage, has uniform grouting effect, and improves grouting quality;
(2) according to the grouting method, the rotatable deep hole grouting device is inserted into the segment to reserve the grouting hole for grouting to the deep part, the sleeve replaces a traditional drill rod to play a role in drilling and supporting, the sleeve is in close contact with a soil body, the problem of slurry backflow is avoided, the utilization rate of slurry is improved, the sleeve is filled with the slurry and is left in the grouting hole after grouting is finished, and the reinforcement and water stop effects of the soil body are enhanced;
(3) according to the grouting device and the grouting method, a permeation grouting mode is adopted, the soil layer is slightly influenced, the reinforcing and water stopping effects are good, the grouting pipes and the motors can be recycled, the grouting cost is reduced, multiple groups of grouting pipes and motor equipment can be added according to the requirement of a construction period, the grouting efficiency is improved, and the operability is enhanced;
(4) install the manometer through the slip casting pipe on, but real time monitoring slip casting pressure guarantees the slip casting quality, is furnished with the stagnant water valve on the sleeve pipe, can prevent behind the wall infiltration entering tunnel in, it is more convenient to operate.
Drawings
Fig. 1 is a schematic structural diagram of a grouting device in an embodiment of the invention.
Fig. 2 is a schematic structural diagram of a bushing portion according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a grouting pipe portion in an embodiment of the invention.
Fig. 4 is a schematic diagram of the positions of the grouting holes when five grouting holes are reserved on the duct piece in the embodiment of the invention.
Fig. 5 is a schematic diagram of the positions of the grouting holes when seven grouting holes are reserved in the duct piece in the embodiment of the present invention.
Fig. 6 is a schematic process flow diagram of a grouting method in an embodiment of the invention.
In the figure: 1-grouting device, 2-sleeve, 3-grouting pipe, 4-connecting screw thread, 5-quincunx grout outlet, 6-water stop valve, 7-motor, 8-circumferential grout outlet, 9-pressure gauge, 10-handle, 11-connecting device, 12-bearing, 13-segment and 14-surrounding rock soil body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1-5, a rotatable deep-hole grouting device provided in an embodiment of the present invention includes a grouting device 1, where the grouting device 1 includes a grouting pipe 3, and further includes:
the sleeve 2 is detachably connected with the grouting pipe 3 through a connecting thread 4, the grouting pipe 3 is concentrically arranged in the sleeve 2, and the sleeve 2 is further provided with a motor 7;
the quincunx grout outlet 5 is uniformly formed in the middle of the sleeve 2; and
and the grouting assembly is respectively connected with the sleeve 2 and the grouting pipe 3.
Referring to fig. 1 and 2, the grouting assembly includes:
the circumferential grout outlet 8 is uniformly arranged on the middle part of the grouting pipe 3 in the circumferential direction;
the connecting device 11 is connected with the end part of the grouting pipe 3 through a bearing 12 and is connected with an external grouting machine; and
and the pressure gauge 9 is positioned on the bottom of the grouting pipe 3, and the pressure gauge 9 is positioned on the bottom of the grouting pipe 3.
Referring to fig. 1 and fig. 2, the method further includes: a handle 10, wherein the handle 10 is positioned on the grouting pipe 3; and
and the water stop valve 6 is fixedly arranged on the bottom of the sleeve 2, and the top of the sleeve 2 is of a cone structure.
Referring to fig. 1 and 2, the length of the casing 2 is 2m, the outer diameter is 5cm, the inner diameter is 4.5cm, and the length of the top cone is 0.3 m.
Referring to fig. 1 and 2, the length of the grouting pipe 3 is 2m, the outer diameter is 4.5cm, and the inner diameter is 4 cm.
Through the slip casting device 1 that sets up, can carry out the slip casting work in the slip casting hole on appointed country rock soil body 14, after sleeve pipe 2 and slip casting pipe 3 insert to the slip casting hole, starter motor 7, can drive sleeve pipe 2 and rotate, and under connecting thread 4's mating reaction, can make slip casting pipe 3 free rotation under sleeve pipe 2's drive, and be equipped with the bearing on through connecting device, can make the interior thick liquids of slip casting machine continuously carry to in the slip casting pipe 3, and under sleeve pipe 2 and slip casting pipe 3 pivoted effect, form circumferential direction slip casting face, the slip casting mouth jam problem has been solved, and the slip casting effect is even, the slip casting quality has been improved, and install manometer 9 through slip casting pipe 3, can real time monitoring slip casting pressure, guarantee the slip casting quality, be equipped with stagnant water valve 6 on the sleeve pipe 2, can prevent that wall rear seepage water from getting into in the tunnel, it is more convenient to operate.
Referring to fig. 4-6, a rotatable deep hole grouting method is provided based on the above structure, the method includes the following steps:
assembling a grouting device, and concentrically installing a grouting pipe 3 into a sleeve 2 for threaded connection;
step two, embedding the drilled hole, aligning the assembled grouting device 1 to the grouting hole, starting the motor 7 to enable the grouting device 1 to drill into the grouting hole in a rotating mode, and stopping after the sleeve 2 is completely embedded;
rotating the deep hole for grouting, connecting a grouting pipe 3 with a grouting machine by using a connecting device 11, adjusting the rotating speed of a motor 7 to 1-2r/min, starting the grouting machine to start rotating grouting, and observing a pressure gauge 9 to adjust the grouting pressure to 3-4 bar;
fourthly, recovering the grouting pipe, adjusting the grouting machine to enable the grouting pressure to be 0.1-0.2bar when the numerical value of the pressure gauge 9 is observed to be 6-7bar, turning off the motor 7, reversely rotating the grouting pipe 3 through the handle 10 to detach the grouting pipe from the sleeve 2, and continuing grouting into the sleeve 2 while retreating the grouting pipe 3;
and step five, stopping grouting, closing the water stop valve 6 on the sleeve 2 when the grouting pipe 3 is withdrawn from the sleeve 2, closing the grouting machine to stop grouting at the same time, and recovering and utilizing the reversely rotating motor 7 after being detached from the sleeve 2.
Referring to fig. 4 and 5, in the second step, the grouting holes are reserved on the tunnel segment 13, the segment 13 is located on the surrounding rock soil 14, and a plurality of grouting holes are reserved on each ring of segments 13 and are uniformly distributed on the upper half part of the segment 13.
Referring to fig. 4, five grouting holes are reserved on each ring of pipe piece 13, and the five grouting holes are uniformly distributed on the upper half part of the pipe piece 13.
Realize the deep hole slip casting in inserting the slip casting hole through slip casting device 1, sleeve pipe 2 replaces drilling rod and soil body in close contact with, has avoided the problem of thick liquid backward flow, the slip casting in-process is opened motor 7 and is driven the rotatory slip casting of slip casting device 1, it is more even to make the slip casting, has solved the obstructed problem of slip casting mouth, after slip casting is ended, fill the thick liquids in sleeve pipe 2 and stay in the slip casting hole, can play the reinforced effect of stagnant water, the slip casting effect has been improved. And a permeation grouting mode is adopted, the influence on soil layers is small, the reinforcing and water stopping effects are good, the grouting pipes 3 and the motors 7 can be recycled, the grouting cost is reduced, multiple groups of grouting pipes 3 and motors 7 can be added according to the requirement of the construction period, the grouting efficiency is improved, and the operability is enhanced.
In an embodiment of the present invention, referring to fig. 5, seven grouting holes are reserved on each ring of the pipe piece 13, and the seven grouting holes are uniformly distributed on the upper half portion of the pipe piece 13.
When slip casting is carried out by adopting the method, seven slip casting holes and uniform distribution are reserved on each ring of the duct piece 13 on the upper half part of the duct piece 13, and through the checking of the slip casting effect, the slip casting effect is good, the reinforcing and water stopping effect is obvious, the problem of grout blocking is solved, the phenomenon of grout backflow is avoided, and the utilization rate of grout is high.
It should be noted that, in the present invention, although the description is made according to the embodiments, not every embodiment includes only one independent technical solution, and such description of the description is only for clarity, and those skilled in the art should integrate the description, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a rotatable formula deep hole slip casting device, includes the slip casting device, the slip casting device is including the slip casting pipe, its characterized in that still includes:
the sleeve is detachably connected with the grouting pipe through a connecting thread, the grouting pipe is concentrically arranged in the sleeve, and a motor is further arranged on the sleeve;
the quincunx pulp outlet is uniformly formed in the middle of the sleeve; and
and the grouting assembly is respectively connected with the sleeve and the grouting pipe.
2. The rotatable deep-hole grouting device of claim 1, wherein the grouting assembly comprises:
the circumferential grout outlet is uniformly arranged on the middle part of the grouting pipe in the circumferential direction;
the connecting device is connected with the end part of the grouting pipe through a bearing and is connected with an external grouting machine; and
and the pressure gauge is positioned on the bottom of the grouting pipe.
3. The rotatable deep hole grouting device of claim 2, further comprising: a handle positioned on the grout tube; and
the water stop valve is fixedly arranged on the bottom of the sleeve, and the top of the sleeve is of a cone structure.
4. The rotatable deep hole grouting device of claim 3, wherein the length of the sleeve is 2m, the outer diameter is 5cm, the inner diameter is 4.5cm, and the length of the top cone is 0.3 m.
5. The rotatable deep hole grouting device of claim 1, wherein the grouting pipe has a length of 2m, an outer diameter of 4.5cm, and an inner diameter of 4 cm.
6. A rotatable deep hole grouting method, which is applied to the rotatable deep hole grouting device according to any one of claims 1-5, and comprises the following steps:
assembling a grouting device, concentrically arranging a grouting pipe in a sleeve for threaded connection;
step two, embedding the drilled hole, aligning the assembled grouting device with the grouting hole, starting a motor to enable the grouting device to drill into the grouting hole in a rotating mode, and stopping after the sleeve is completely embedded;
rotating the deep hole for grouting, connecting a grouting pipe with a grouting machine by using a connecting device, adjusting the rotating speed of a motor to 1-2r/min, starting the grouting machine to start rotating grouting, and observing a pressure gauge to adjust the grouting pressure to 3-4 bar;
fourthly, recovering the grouting pipe, adjusting the grouting machine to enable the grouting pressure to be 0.1-0.2bar when the numerical value of the pressure gauge is observed to be 6-7bar, turning off the motor, reversely rotating the grouting pipe through the handle to detach the grouting pipe from the sleeve, and continuing grouting into the sleeve while retreating the grouting pipe;
and step five, stopping grouting, closing a water stop valve on the sleeve when the grouting pipe exits from the sleeve, closing the grouting machine to stop grouting at the same time, and recycling the reversely rotating motor after being detached from the sleeve.
7. The rotatable deep hole grouting method of claim 6, wherein in the second step, the grouting holes are reserved on the tunnel segment, the tunnel segment is located on the surrounding rock soil body, and a plurality of grouting holes are reserved on each ring segment, and the plurality of grouting holes are uniformly distributed on the upper half part of the tunnel segment.
8. The rotatable deep hole grouting method according to claim 7, wherein five grouting holes are reserved on each ring pipe sheet, and the five grouting holes are uniformly distributed on the upper half part of the pipe sheet.
9. The rotatable deep hole grouting method according to claim 7, wherein seven grouting holes are reserved on each ring pipe sheet, and the seven grouting holes are uniformly distributed on the upper half part of the pipe sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210694497.6A CN114991820A (en) | 2022-06-20 | 2022-06-20 | Rotatable deep hole grouting device and grouting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210694497.6A CN114991820A (en) | 2022-06-20 | 2022-06-20 | Rotatable deep hole grouting device and grouting method |
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| CN114991820A true CN114991820A (en) | 2022-09-02 |
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| CN202210694497.6A Pending CN114991820A (en) | 2022-06-20 | 2022-06-20 | Rotatable deep hole grouting device and grouting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839244A (en) * | 2023-02-13 | 2023-03-24 | 中铁五局集团电务工程有限责任公司 | Short-distance subway shield tunnel crossing operation supporting equipment and method |
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| CN209162797U (en) * | 2018-11-18 | 2019-07-26 | 中铁十四局集团第二工程有限公司 | A kind of novel anti-grout Grouting Pipe |
| CN111156032A (en) * | 2020-01-20 | 2020-05-15 | 杭州临安中民筑友智造科技有限公司 | Structure and method for reinforcing existing subway tunnel through inserting section steel into grouting pipe and grouting |
| CN111691399A (en) * | 2020-07-06 | 2020-09-22 | 兰州大学 | Rotary injection splitting grouting device |
-
2022
- 2022-06-20 CN CN202210694497.6A patent/CN114991820A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1088985A (en) * | 1996-09-11 | 1998-04-07 | Saga Kogyo Kk | Grout pipe mounting device and grout injecting method using the same |
| CN201068747Y (en) * | 2007-08-09 | 2008-06-04 | 山西焦煤集团有限责任公司 | Hollow grouting anchoring-bolt |
| CN102325945A (en) * | 2009-02-20 | 2012-01-18 | 挖土机械有限公司 | Spray grouting equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115839244A (en) * | 2023-02-13 | 2023-03-24 | 中铁五局集团电务工程有限责任公司 | Short-distance subway shield tunnel crossing operation supporting equipment and method |
| CN115839244B (en) * | 2023-02-13 | 2023-04-18 | 中铁五局集团电务工程有限责任公司 | Short-distance subway shield tunnel crossing operation supporting equipment and method |
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Application publication date: 20220902 |