CN210118143U - Portable jet grouting machine suitable for shield tunnel portal horizontal reinforcement - Google Patents
Portable jet grouting machine suitable for shield tunnel portal horizontal reinforcement Download PDFInfo
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- CN210118143U CN210118143U CN201920963846.3U CN201920963846U CN210118143U CN 210118143 U CN210118143 U CN 210118143U CN 201920963846 U CN201920963846 U CN 201920963846U CN 210118143 U CN210118143 U CN 210118143U
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- jet grouting
- shield tunnel
- tunnel portal
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- grouting machine
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a spout machine technical field soon, more specifically say, relate to a portable machine of spouting soon suitable for shield constructs portal level reinforcement, including base, lifter, elevating platform, lead screw, footstock, drilling tool. The phenomenon that gushing water suddenly mud suddenly sand suddenly appears in avoiding the work progress through installation plugging device in the trompil, drive the jet grouting machine through setting up the motor and carry out the jet grouting soon, degree of automation is higher, the cost of labor has been reduced, jet grouting machine structure machines themselves are small soon, be convenient for operate and carry, the cost is low, convenient equipment, dismantle and maintenance, change after the shower nozzle passes through the screw thread joint threaded connection with the slip casting pipe and is convenient for damage, the thick liquid injection under certain pressure is guaranteed to the pressure shutoff piece, avoid the stifled pipe.
Description
Technical Field
The utility model relates to a spout machine technical field soon, more specifically say, relate to a portable machine of spouting soon suitable for shield constructs portal level reinforcement.
Background
At present, in the shield method tunnel end reinforcement construction, the shield receiving end reinforcement modes mainly comprise vertical rotary spraying reinforcement and stirring reinforcement, and the reinforcement modes can not meet the reinforcement effect due to factors such as geology, machinery and construction conditions. Usually, a large amount of tunnel portal reinforcement and remediation construction operations are required, and then shield tunnel portal enclosure breaking, tunnel entering and other processes are carried out, so that the shield tunnel is excavated, and end reinforcement construction and subsequent tunnel portal reinforcement are key factors influencing the construction progress. The commonly used remedial measures such as grouting of a horizontal sleeve valve pipe, reinforcement of a horizontal grouting pipe and the like are that soil particles are peeled off from a soil layer due to the fact that the soil cannot be cut by rotary impact, and the soil particles are stirred with cement paste to form mixed slurry. The formed solidified body has poor durability, low strength, low calculus rate, easy existence of a reinforcing blind area, poor reinforcing effect, high cost and long construction time.
SUMMERY OF THE UTILITY MODEL
In order to overcome the difficult problem that exists among the prior art, the utility model provides a be applicable to shield constructs portal level and consolidates portable device to solve the unable rotatory cutting soil body of assaulting, there is the reinforcement blind area easily, consolidates the problem that the effect is poor, with high costs.
Compared with the prior art, the utility model discloses the technical scheme who adopts does:
the utility model provides a portable jet grouting machine suitable for shield tunnel portal level reinforcement, includes base, lifter, elevating platform, lead screw, footstock and drilling tool, lifter one end welds on the base, and one end bearing is connected in the footstock, the elevating platform sets up between base and footstock, and lifter, lead screw and drilling tool all run through the elevating platform, lifter and elevating platform sliding connection, lead screw and elevating platform threaded connection.
Further, a motor is arranged on the outer side of the lifting platform.
Furthermore, a hand wheel is fixed on the top of the lead screw and arranged on the top of the top seat.
Furthermore, the drilling tool is connected with the top seat in a sliding mode and is fixedly connected with the lifting platform.
Further, the drilling tool also comprises a grouting pipe, a sealer and a rotary spray head.
Further, the sealer comprises a rolling shaft and a rubber ring, the rubber ring is fixed on the inner side of the rolling shaft, the rubber ring is located on the inner side and is in contact with the grouting pipe, and the corrugated rubber layer on the outer layer of the sealer is tightly combined with the hole wall.
Further, the rotary spray head comprises a screw thread connector, a spray head hole and a pressure plugging sheet, the rotary spray head is in threaded connection with the grouting pipe through the screw thread connector, and the pressure plugging sheet is arranged in the spray head hole.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
the utility model discloses, through install the plugging device in the trompil and avoid appearing the phenomenon that gushing water suddenly mud suddenly husky in the work progress, drive the jet grouting machine through setting up the motor and carry out the jet grouting soon, degree of automation is higher, the cost of labor has been reduced, shorten the engineering time, jet grouting machine own structure machines are small soon, be convenient for operate and carry, the cost is low, convenient assembly, dismantle and maintenance, the jet grouting head passes through screw thread joint threaded connection with the slip casting pipe, change after being convenient for damage, pressure shutoff piece guarantees that the thick liquid sprays under certain pressure, avoid the stifled pipe, jet grouting machine rotary impact cuts the soil body and makes the soil granule peel off from the soil layer, form mixed thick liquid with the even stirring of slip casting thick liquid, it is effectual to consolidate.
Drawings
FIG. 1 is a structural view of the present invention;
fig. 2 is an enlarged view of the closure assembly and surrounding portions of fig. 1.
In the figure: 1-base, 2-lifting rod, 3-lifting platform, 4-motor, 5-lead screw, 6-hand wheel, 7-footstock, 8-drilling tool, 81-grouting pipe, 82-sealer, 821-roller, 822-rubber ring, 83-rotary nozzle, 831-screw joint, 832-nozzle hole and 833-pressure plugging sheet.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
A portable jet grouting machine suitable for horizontal reinforcement of a shield tunnel portal is shown in figures 1-2 and comprises a base 1, a lifting rod 2, a lifting platform 3, a screw rod 5, a top seat 7 and a drilling tool 8, one end of the lifting rod 2 is welded on the base 1, one end is connected with the top seat 7 through a bearing, the lifting platform 3 is arranged between the base 1 and the top seat 7, and the lifting rod 2, the screw 5 and the drilling tool 8 all penetrate through the lifting platform 3, the lifting rod 2 is connected with the lifting platform 3 in a sliding way, the lifting platform 3 can move axially on the lifting rod 2 by the sliding connection of the lifting rod 2 and the lifting platform 3, the adjustment can be conveniently carried out according to the construction requirement, the screw rod 5 is in threaded connection with the lifting platform 3, the lifting platform 3 is driven to move forwards or backwards through the rotation of the screw rod 5, meanwhile, the lifting platform 3 is limited by the screw rod 5 and the internal and external threads of the lifting platform 3, and the lifting platform 3 is prevented from sliding randomly.
Further, the motor 4 is further arranged on the outer side of the lifting platform 3, and the motor 4 provides power for rotation of the drilling tool 8, so that the degree of mechanization is improved, and the construction time is shortened.
Further, the hand wheel 6 and the lead screw 5 are fixedly connected and arranged at the top of the top seat 7, so that the lifting platform 3 can be conveniently adjusted to advance or retreat by rotating the hand wheel 6 according to construction requirements.
Further, the drilling tool 8 is connected with the top seat 7 in a sliding mode and is fixedly connected with the lifting platform 3, and the drilling tool 8 can move along with the movement of the lifting platform 3 conveniently.
Further, the drilling tool 8 further comprises a grouting pipe 81, a sealer 82 and a spinning nozzle 83.
Further, the sealer 82 includes a roller 821 and a rubber ring 822, the rubber ring 822 is fixed to the inner side of the roller 821, and the grouting pipe 81 rotates to drive the roller 821 to rotate, so as to ensure the jet grouting construction. The rubber ring 822 is positioned at the inner side and contacts with the grouting pipe 81, and the rotating machine can effectively prevent the grouting pipe 81 from leaking slurry and facilitate the pulling out of the grouting pipe 81 through the rotation of the rubber ring 822. The corrugated rubber layer on the outer layer of the sealer 82 is tightly combined with the hole wall, and the sealing performance is formed after the grouting pipe 81 is inserted, so that the phenomenon that water burst, mud burst and sand burst occur in the grouting process is avoided.
Further, the spiral spray head 83 comprises a threaded joint 831, a spray head hole 832 and a pressure plugging sheet 833, the spiral spray head 83 is in threaded connection with the grouting pipe 81 through the threaded joint 831, the spiral spray head 83 is convenient to replace and detach when damaged, the pressure plugging sheet 833 is arranged in the spray head hole 832, and the fact that the slurry is sprayed out of the spray head hole 832 under certain pressure is guaranteed, and pipe plugging is avoided.
When the utility model is implemented, firstly, the pile position is measured and placed, the horizontal reinforcing point is determined and marked according to the design construction requirement on the operation surface, the hole is opened according to the mark and the sealer 82 for preventing water burst, mud burst and sand burst in the construction process is installed, after the sealer 82 is installed, the grouting pipe 81 and the rotary sprayer 83 are inserted into the middle reserved hole, the hole position is aligned according to the design angle, the foundation bolt is screwed into the bolt hole fixed rotary sprayer on the base 1, then the slurry configuration is carried out, the slurry pump is started, the drilling circulating slurry is transmitted to the drilling tool 8, the drilling circulating slurry is sprayed out from the spray nozzle hole 832 in the rotary sprayer 83 after reaching a certain pressure, the motor is started, the rotary sprayer starts to rotate, the rotary sprayer rotates to impact the soil body to make the soil particles peel off from the soil layer, the slurry is uniformly stirred with the grouting slurry to form mixed slurry, the pressure gauge continuously displays the pressure condition information in the, and monitoring the reinforcement construction process according to the pressure information until the design pressure is reached. And (3) grouting different types of slurry according to the water gushing condition, wherein the grouting sequence is from shallow to deep, and the lifting platform 3 is adjusted by rotating the hand wheel 6 to drive the grouting pipe 81 to perform deep grouting reinforcement. After the construction is finished, the foundation bolts on the base 1 are unscrewed and the foundation bolts are moved to the next construction site.
The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above-mentioned embodiment, therefore, the present invention is not limited to the above-mentioned specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a portable jet grouting machine suitable for shield tunnel portal level is consolidated which characterized in that: including base (1), lifter (2), elevating platform (3), lead screw (5), footstock (7) and drilling tool (8), lifter (2) one end welds on base (1), and the one end bearing is connected in footstock (7), elevating platform (3) set up between base (1) and footstock (7), and lifter (2), lead screw (5) and drilling tool (8) all run through elevating platform (3), lifter (2) and elevating platform (3) sliding connection, lead screw (5) and elevating platform (3) threaded connection.
2. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 1, characterized in that: and a motor (4) is also arranged on the outer side of the lifting platform (3).
3. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 1, characterized in that: a hand wheel (6) is fixed to the top of the lead screw (5), and the hand wheel (6) is arranged on the top of the top seat (7).
4. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 1, characterized in that: and the drilling tool (8) is connected with the top seat (7) in a sliding way and is fixedly connected with the lifting platform (3).
5. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 1, characterized in that: the drilling tool (8) further comprises a grouting pipe (81), a sealer (82) and a rotary spray head (83).
6. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 5, characterized in that: the sealer (82) comprises a roller (821) and a rubber ring (822), the rubber ring (822) is fixed to the inner side of the roller (821), the rubber ring (822) is located on the inner side and is in contact with the grouting pipe (81), and the corrugated rubber layer on the outer layer of the sealer (82) is tightly combined with the hole wall.
7. The portable jet grouting machine suitable for horizontally reinforcing the shield tunnel portal according to claim 5, characterized in that: the rotary spray head (83) comprises a screw thread joint (831), a spray head hole (832) and a pressure plugging sheet (833), the rotary spray head (83) is in threaded connection with the grouting pipe (81) through the screw thread joint (831), and the pressure plugging sheet (833) is arranged in the spray head hole (832).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963846.3U CN210118143U (en) | 2019-06-25 | 2019-06-25 | Portable jet grouting machine suitable for shield tunnel portal horizontal reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920963846.3U CN210118143U (en) | 2019-06-25 | 2019-06-25 | Portable jet grouting machine suitable for shield tunnel portal horizontal reinforcement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118143U true CN210118143U (en) | 2020-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920963846.3U Active CN210118143U (en) | 2019-06-25 | 2019-06-25 | Portable jet grouting machine suitable for shield tunnel portal horizontal reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118143U (en) |
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2019
- 2019-06-25 CN CN201920963846.3U patent/CN210118143U/en active Active
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