CN112483101A - Device and method for preventing and treating cutter disc mud cakes in strongly weathered red sandstone stratum - Google Patents
Device and method for preventing and treating cutter disc mud cakes in strongly weathered red sandstone stratum Download PDFInfo
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- CN112483101A CN112483101A CN202011285936.5A CN202011285936A CN112483101A CN 112483101 A CN112483101 A CN 112483101A CN 202011285936 A CN202011285936 A CN 202011285936A CN 112483101 A CN112483101 A CN 112483101A
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- 238000000034 method Methods 0.000 title claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 238000004140 cleaning Methods 0.000 claims abstract description 32
- 239000002689 soil Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 7
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 26
- 239000004519 grease Substances 0.000 claims description 10
- 210000002445 nipple Anatomy 0.000 claims description 9
- 235000014121 butter Nutrition 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 5
- 230000002265 prevention Effects 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract description 6
- 238000005406 washing Methods 0.000 abstract description 6
- 239000010802 sludge Substances 0.000 abstract description 3
- 230000005641 tunneling Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 238000002791 soaking Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/022—Cleaning travelling work
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A device for preventing and treating cutter disc mud cakes in a strongly weathered red sandstone stratum is characterized in that a soil bin is arranged behind a cutter disc, 1-3 circles of reserved ball valves are mounted on a partition plate of the soil bin, 2-6 reserved ball valves can be mounted in each circle, the centers of the reserved ball valves in each circle are located in the same circumferential plane, the circumferential plane is coaxial with a rotation center, the reserved ball valves are communicated with one outlet of a drainage pressure relief pipeline, an inlet of the drainage pressure relief pipeline is communicated with an ultrahigh pressure cleaning machine, and the other outlet of the drainage pressure relief pipeline is communicated with a collecting system; the device is used for washing the center part of the cutter head of the cutter cake at high pressure, and discharging washed water and slag to a collecting system through the third steel pipe, so that the normal tunneling state of the shield machine without the cutter head center is ensured, and the device can be popularized and applied to the technical field of equipment or devices for preventing and treating the cutter head sludge cake.
Description
Technical Field
The invention belongs to the technical field of equipment or devices for preventing and treating mud cake of a cutter head of a shield tunneling machine, and particularly relates to a device for preventing and treating mud cake of the cutter head of the shield tunneling machine in a strongly weathered red sandstone stratum and a method for treating mud cake of the cutter head by adopting the device.
Background
In the construction of a shield tunnel of an urban subway, when a shield machine passes through a 4-2-1 strongly weathered sandstone stratum and a 4-2-2 moderately weathered sandstone (sandstone is orange, has a fine grain structure, a layered structure and is cemented by argillaceous substances) stratum, because the mineral components of the stratum are mainly quartz, the diagenesis is poor, the mechanical property of the stratum in a natural state is good, the stratum is easy to disintegrate in a loose sand state by soaking or disturbance, and the stratum is easy to be weathered after the ground surface is exposed. In the shield construction process, the excavation parameters are slightly unreasonable or the muck is not improved to a certain extent, so that a cutter head is likely to form mud cakes in the excavation process, the propulsion is difficult, the slag output and the excavation speed are uncontrollable, and the ground collapse is likely to be caused. Therefore, preventive measures are added when the stratum is penetrated in a targeted manner, problems in construction and excavation of the stratum are solved in time, and smooth shield construction under the conditions of the strongly weathered sandstone stratum and the moderately weathered sandstone stratum is guaranteed.
Generally, the cleaning method of the cutter head 'mud cake' includes the following three methods:
1. dispersing agents are injected into a cutter head panel or a soil bin, and after soaking for 48 hours, the cutter head is rotated forwards and backwards, so that the cleaning of the slightly and slightly-bonded mud cake of the cutter head can be completed; the method has the disadvantages that the disturbance of the rotation of the cutter head to the stratum is too large; the stability of the tunnel face and the surrounding soil body is affected due to overlong time of the dunking bin, and collapse accidents are easy to happen; the injected dispersant is easy to diffuse all around, can not be accumulated between the cutter head and the face for a long time, and is difficult to take the function of soaking.
2. The cutter head has high rotating speed and low thrust, and the cleaning of the cutter head lightly and slightly formed mud cakes can be finished; the method has the defects that the stability of the tunnel face and the surrounding soil body is influenced by the rapid rotation of the cutter head, and collapse events are easy to occur; the thrust is small, the cutter head is high in rotating speed, and overexcavation is easy.
3. Cleaning the cutter disc mud cakes by adopting a method of opening the bin under pressure; the method has the defects of high cost, large danger coefficient, difficult control of the pressure of the soil bin during operation, high requirement on physical quality of personnel entering the bin, complicated preliminary preparation work and uncontrollable construction period.
In conclusion, the existing process method is difficult to solve the problem of cleaning the cutter head mud cakes safely at low cost in a short time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a device for preventing and treating the mud cake of the cutter head in the strongly weathered red sandstone stratum without affecting the stability of the tunnel face and the surrounding soil body, which has low cost and low danger coefficient and can safely and effectively solve the problem of mud cake of the cutter head, and a treatment method for treating the mud cake of the cutter head by adopting the device.
The technical scheme for solving the technical problems is as follows: the rear of the cutter head is provided with a soil bin, 1-3 circles of reserved ball valves are installed on a partition plate of the soil bin, 2-6 reserved ball valves can be installed in each circle, the center of each circle of reserved ball valves is located in the same circumferential plane, the circumferential plane is coaxial with the rotation center, the reserved ball valves are communicated with one outlet of a drainage pressure relief pipeline, an inlet of the drainage pressure relief pipeline is communicated with the ultrahigh pressure cleaning machine, and the other outlet of the drainage pressure relief pipeline is communicated with a collection system.
The drainage pressure relief pipeline of the invention is as follows: the one end of first group of flange is connected with first pair of silk, the one end of first pair of silk is connected with the superhigh pressure cleaning machine, the other end is connected with first steel pipe, the other end and the second of first steel pipe are organized the flange and are connected, the superhigh pressure cleaning machine barrel is inserted by first pair of silk and is passed the second and organize the flange, the other end and the second of second group flange are connected to the silk, the other end and the one end of three-way valve of second pair silk are connected, the relative one end and the third of three-way valve are connected to the silk, the side end is connected with the third steel pipe, the other end of third steel pipe is provided with the second ball valve, the other end and the first ball valve of third pair silk are connected, the other end of first ball valve is provided with the second steel.
A rubber sealing ring is arranged between the first group of flanges, and a rubber sealing ring is arranged between the second group of flanges.
The rubber sealing ring of the invention is as follows: the middle part of the sealing ring body is provided with a conical bulge, 4 or 6 fixing holes are uniformly processed in 360-degree phases around the conical bulge on the sealing ring body, and 3 openings are uniformly processed in 360-degree phases on the conical bulge.
The main pipeline of the three-way valve of the invention forms an included angle of 30-60 degrees with the side pipeline.
The first steel pipe is provided with 2-6 grease nipples, and the grease nipples are communicated with the first steel pipe.
The treatment method of the device for preventing and treating the cutter head mud cake in the strongly weathered red sandstone stratum comprises the following steps:
s1, inserting a gun tube of the high-pressure cleaning machine into the first steel tube and penetrating through the second group of flanges;
s2, injecting butter into the first steel pipe through a butter nozzle to fill a gap between the first steel pipe and a gun barrel of the high-pressure cleaning machine;
s3, connecting and sealing the second steel pipe with the reserved ball valve;
s4, opening the first ball valve and the second ball valve, opening a high-pressure cleaning machine to wash the cutter disc sludge cake, and discharging the washed water and slag to a collection system through a third steel pipe;
s5, in the flushing process, a driver of the shield machine cooperates with the rotary cutter head to stare at and control the soil pressure constantly to prevent the gushing;
and S6, after the flushing is finished, closing the first ball valve and the second ball valve, and detaching the drainage and pressure relief pipeline.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, only in the process of treating the cutter disc mud cakes, a 350bar ultrahigh pressure cleaning machine is used for washing the cutter disc at high pressure, and the washed water and slag are discharged to a collecting system through a third steel pipe, so that on one hand, the high-pressure water flow directly applies force to the cutter disc, on the other hand, the mud cakes on the cutter disc are easy to fall off under the soaking action of the water flow, the water and slag are discharged in time, the stability of a palm surface and surrounding soil bodies cannot be influenced due to overlong bin soaking time, and collapse accidents are avoided.
2. In the washing process, a shield machine driver is matched with the rotary cutter head to avoid always rotating the cutter head at a high speed, the stability of a tunnel face and a surrounding soil body is influenced due to the high-speed rotation of the cutter head, and the problem of fast overexcavation of the cutter head at a high speed is avoided.
3. The operation of the invention is carried out outside the soil bin, the reserved ball valve is arranged on the partition plate of the soil bin, the drainage and pressure relief pipeline is simple, convenient and quick to mount and dismount, the danger of personnel entering the bin is avoided, the construction period is shortened, and the working procedure is simplified.
4. The ultrahigh pressure cleaning machine gun barrel is sealed by the rubber sealing ring, the effect of the one-way valve is equivalent to that of a cutter head mud cake is washed, dregs and water are prevented from overflowing, a gap between the first steel pipe and the ultrahigh pressure cleaning machine gun barrel is filled with butter, the dregs and the water are further prevented from flowing back from the gap of the gun barrel, and the washing pressure of the cleaning machine is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic structural view of the drain relief pipeline 3 in fig. 1.
Fig. 3 is a right side view of fig. 2.
Fig. 4 is a top view of fig. 2.
Fig. 5 is a schematic view of the rubber packing 3-11 of fig. 4.
Fig. 6 is a top view of fig. 5.
In the figure: 1. a cutter head; 2. a soil bin; 3. a water discharge pressure relief pipeline; 4. reserving a ball valve; 5. a center of gyration; 3-1, a first pair of filaments; 3-2, a first set of flanges; 3-3, grease nipple; 3-4, a first steel pipe; 3-5, a second set of flanges; 3-6, a second pair of filaments; 3-7, a three-way valve; 3-8, a third pair of filaments; 3-9, a first ball valve; 3-10, second steel pipe; 3-11, rubber sealing ring; 3-12, a second ball valve; 3-13 parts of a third steel pipe, 3-11-1 parts of a rubber ring body; 3-11-2, conical protrusions; 3-11-3 and an opening.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.
Example 1
In the figures 1-6, the invention relates to a device for preventing and treating cutter head mud cakes in a strongly weathered red sandstone stratum, wherein a soil bin 2 is arranged behind a cutter head 1 of a shield machine, 1 circle of reserved ball valves 4 are arranged on a partition plate of the soil bin 2 according to the area of the cutter head 1, 4 reserved ball valves 4 can be arranged in each circle, the centers of the reserved ball valves 4 in each circle are positioned in the same circumferential plane, the circumferential plane is coaxial with a rotation center 5, the water flow emitted by a gun tube of an ultrahigh pressure cleaning machine can be uniformly sprayed on the cutter head 1, the cutter head mud cakes are more thoroughly washed, and the washing area is larger by arranging a plurality of circles of reserved ball valves 4. The reserved ball valve 4 is communicated with one outlet of the drainage and pressure relief pipeline 3, an inlet of the drainage and pressure relief pipeline 3 is communicated with the ultrahigh pressure cleaning machine, and the other outlet of the drainage and pressure relief pipeline is communicated with the collection system.
The drainage pressure relief pipeline 3 comprises a first pair of wires 3-1, a first group of flanges 3-2, a grease nipple 3-3, a first steel pipe 3-4, a second group of flanges 3-5, a second pair of wires 3-6, a three-way valve 3-7, a third pair of wires 3-8, a first ball valve 3-9, a second steel pipe 3-10, a rubber sealing ring 3-11, a second ball valve 3-12 and a third steel pipe 3-13 which are connected, wherein the first group of flanges 3-2 are formed by connecting two flange plates, the rubber sealing ring 3-11 is arranged between the two flange plates, furthermore, the rubber sealing ring 3-11 is formed by connecting a rubber ring body 3-11-1, a conical bulge 3-11-2 and an opening 3-11-3, the conical bulge 3-11-2 is processed in the middle part of the cylindrical sealing ring body 3-11-1, 4 or 6 fixing holes a are uniformly formed in the 360-degree phase around the conical protrusion 3-11-2 on the sealing ring body 3-11-1, 3 openings 3-11-3 are uniformly formed in the 360-degree phase on the conical protrusion 3-11-2, the barrel of the ultrahigh pressure cleaning machine penetrates through the openings 3-11-3, and the openings 3-11 of the rubber sealing ring are stretched and tightly sleeved on the barrel of the ultrahigh pressure cleaning machine under the action of tension, so that the sealing effect is achieved.
One end of a first group of flanges 3-2 is connected with a first pair of wires 3-1, one end of the first pair of wires 3-1 is connected with an ultrahigh pressure cleaning machine, the other end of the first pair of wires 3-1 is connected with a first steel pipe 3-4, the other end of the first steel pipe 3-4 is connected with a second group of flanges 3-5, the second group of flanges 3-5 is formed by connecting two flange plates, a rubber sealing ring 3-11 is arranged between the two flange plates, a gun tube of the ultrahigh pressure cleaning machine is inserted by the first pair of wires 3-1 to sequentially penetrate through the first group of flanges 3-2, the first steel pipe 3-4 and the second group of flanges 3-5, the rubber sealing ring 3-11 between the first group of flanges 3-2 and the second group of flanges 3-5 plays a role of sealing the gun tube of the ultrahigh pressure cleaning machine, which is equivalent to the function of, 2-6 grease nipples 3-3 are installed on the first steel pipe 3-4, the grease nipples 3-3 are communicated with the first steel pipe 3-4, grease is filled in gaps between the first steel pipe 3-4 and a gun pipe of the ultrahigh pressure cleaning machine through the grease nipples 3-3, and therefore dregs and water are further prevented from flowing back from the gaps of the gun pipe, and the flushing pressure of the cleaning machine is reduced.
The other end of the second group of flanges 3-5 is connected with a second pair of wires 3-6, the other end of the second pair of wires 3-6 is connected with one end of a three-way valve 3-7, the opposite end of the three-way valve 3-7 is connected with a third pair of wires 3-8, the side end is connected with a third steel pipe 3-13, the included angle between the main pipeline of the three-way valve 3-7 and the side pipeline is 30-60 degrees, the second ball valve 3-12 is installed at the other end of the third steel pipe 3-13, the other end of the third pair of wires 3-8 is connected with a first ball valve 3-9, the second steel pipe 3-10 is installed at the other end of the first ball valve 3-9, and the second steel pipe 3-10 is in sealing connection.
The treatment method of the device for preventing and treating the cutter head mud cake in the strongly weathered red sandstone stratum comprises the following steps:
s1, inserting a gun tube of the high-pressure cleaning machine into the first steel tube 3-4 and penetrating through the second group of flanges 3-5;
s2, injecting butter into the first steel pipe 3-4 through the butter nozzle 3-3, and filling a gap between the first steel pipe 3-4 and a gun barrel of the high-pressure cleaning machine;
s3, connecting and sealing the second steel pipe 3-10 with the reserved ball valve 4;
s4, opening the first ball valve 3-9 and the second ball valve 3-12, opening a high-pressure cleaning machine to wash the cutter plate sludge cake, and discharging the water and slag obtained by washing to a collecting system through the third steel pipe 3-13;
s5, in the flushing process, a driver of the shield machine cooperates with the rotary cutter head to stare at and control the soil pressure constantly to prevent the gushing;
s6, after the flushing is finished, closing the first ball valve 3-9 and the second ball valve 3-12, and detaching the drainage pressure relief pipeline 3.
Example 2
In the above embodiment 1, in this embodiment, 2 circles of reserved ball valves 4 are installed on the partition board of the soil bin 2, each circle can be installed with 6 reserved ball valves 4, the center of each circle of reserved ball valves 4 is located in the same circumferential plane, the circumferential plane is coaxial with the rotation center 5, and adjacent circles of reserved ball valves 4 are arranged in a staggered manner. The connection relationship between the other components and the components is completely the same as that in example 1, and the processing method is completely the same as that in example 1.
Example 3
In the above embodiment 1, in this embodiment, 3 circles of reserved ball valves 4 are installed on the partition board of the soil bin 2, each circle can be installed with 3 reserved ball valves 4, the center of each circle of reserved ball valves 4 is located in the same circumferential plane, the circumferential plane is coaxial with the rotation center 5, and adjacent circles of reserved ball valves 4 are arranged in a staggered manner. The connection relationship between the other components and the components is completely the same as that in example 1, and the processing method is completely the same as that in example 1.
Claims (7)
1. The utility model provides a device of prevention and processing cutter head caking mud cake in strong weathering red sandstone stratum which characterized in that: the rear of blade disc (1) is provided with soil storehouse (2), install 1 ~ 3 circles on soil storehouse (2) baffle and reserve ball valve (4), 2 ~ 6 ball valve (4) of reserving can be installed to each circle, the center that ball valve (4) were reserved to each circle is located same circumferencial plane, and this periphery is coaxial with centre of gyration (5), reserve an export of ball valve (4) and drainage pressure release pipeline (3) and be linked together, the entry and the super high pressure cleaner of drainage pressure release pipeline (3) are linked together, another export is linked together with collecting system.
2. The device for preventing and treating the cutter head mud cake in the strongly weathered red sandstone formation according to claim 1, wherein the drainage and pressure relief pipeline (3) is characterized in that: one end of a first group of flanges (3-2) is connected with a first pair of wires (3-1), one end of the first pair of wires (3-1) is connected with an ultrahigh pressure cleaning machine, the other end of the first pair of wires (3-1) is connected with a first steel pipe (3-4), the other end of the first steel pipe (3-4) is connected with a second group of flanges (3-5), a gun tube of the ultrahigh pressure cleaning machine penetrates through the second group of flanges (3-5) by the first pair of wires (3-1), the other end of the second group of flanges (3-5) is connected with a second pair of wires (3-6), the other end of the second pair of wires (3-6) is connected with one end of a three-way valve (3-7), the opposite end of the three-way valve (3-7) is connected with a third pair of wires (3-8), and the side end is connected with a third, the other end of the third steel pipe (3-13) is provided with a second ball valve (3-12), the other end of the third pair of wires (3-8) is connected with the first ball valve (3-9), the other end of the first ball valve (3-9) is provided with a second steel pipe (3-10), and the second steel pipe (3-10) is connected with the reserved ball valve (4).
3. The device for preventing and treating the cutter disk mud cakes in the strongly weathered red sandstone formation according to claim 2, wherein the device comprises: rubber sealing rings (3-11) are arranged between the first group of flanges (3-2), and rubber sealing rings (3-11) are arranged between the second group of flanges (3-5).
4. The device for preventing and treating the cutter disk mud cake in the strongly weathered red sandstone formation according to claim 3, wherein the rubber sealing rings (3-11) are as follows: the middle part of the sealing ring body (3-11-1) is provided with a conical bulge (3-11-2), 4 or 6 fixing holes (a) are uniformly processed in 360-degree phase around the conical bulge (3-11-2) on the sealing ring body (3-11-1), and 3 openings (3-11-3) are uniformly processed in 360-degree phase on the conical bulge (3-11-2).
5. The device for preventing and treating the cutter disk mud cakes in the strongly weathered red sandstone formation according to claim 2, wherein the device comprises: the main pipeline of the three-way valve (3-7) and the side pipeline form an included angle of 30-60 degrees.
6. The device for preventing and treating the cutter disk mud cakes in the strongly weathered red sandstone formation according to claim 2, wherein the device comprises: the first steel pipe (3-4) is provided with 2-6 grease nipples (3-3), and the grease nipples (3-3) are communicated with the first steel pipe (3-4).
7. The treatment method of the device for preventing and treating the cutter disk mud cake in the strongly weathered red sandstone stratum as claimed in any one of claims 1 to 6 comprises the following steps:
s1, inserting a gun tube of the high-pressure cleaning machine into the first steel tube (3-4) and penetrating through the second group of flanges (3-5);
s2, injecting butter into the first steel pipe (3-4) through the butter nozzle (3-3) to fill the gap between the first steel pipe (3-4) and the gun barrel of the high-pressure washer;
s3, connecting and sealing the second steel pipe (3-10) with the reserved ball valve (4);
s4, opening the first ball valve (3-9) and the second ball valve (3-12), opening a high-pressure cleaning machine to wash the cutter plate mud cake, and discharging the washed water and slag to a collection system through a third steel pipe (3-13);
s5, in the flushing process, a driver of the shield machine cooperates with the rotary cutter head to stare at and control the soil pressure constantly to prevent the gushing;
s6, after the flushing is finished, closing the first ball valve (3-9) and the second ball valve (3-12), and detaching the drainage and pressure relief pipeline (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285936.5A CN112483101A (en) | 2020-11-17 | 2020-11-17 | Device and method for preventing and treating cutter disc mud cakes in strongly weathered red sandstone stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011285936.5A CN112483101A (en) | 2020-11-17 | 2020-11-17 | Device and method for preventing and treating cutter disc mud cakes in strongly weathered red sandstone stratum |
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| CN112483101A true CN112483101A (en) | 2021-03-12 |
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| CN202011285936.5A Pending CN112483101A (en) | 2020-11-17 | 2020-11-17 | Device and method for preventing and treating cutter disc mud cakes in strongly weathered red sandstone stratum |
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| CN (1) | CN112483101A (en) |
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| CN206972242U (en) * | 2017-05-27 | 2018-02-06 | 中铁工程装备集团有限公司 | A kind of slurry shield high pressure washes away topping machanism |
| CN207776873U (en) * | 2017-12-26 | 2018-08-28 | 中铁六局集团有限公司 | Shield machine mud cake detection device |
| CN208280958U (en) * | 2018-06-14 | 2018-12-25 | 中铁工程装备集团盾构制造有限公司 | A kind of shield machine soil storehouse mud cake abolishes device |
| CN109252871A (en) * | 2018-10-08 | 2019-01-22 | 中铁华隧联合重型装备有限公司 | Mud water type TBM and slurry-water balance type shield machine and its control method |
| CN209339946U (en) * | 2018-11-28 | 2019-09-03 | 中铁隧道局集团有限公司 | Shield machine muddy water circulation system |
| CN109281681A (en) * | 2018-11-29 | 2019-01-29 | 中铁隧道局集团有限公司 | Take into account the device and application method for being used to remove cutter head of shield machine mud cake of safety, cost and efficiency |
| CN209855791U (en) * | 2019-04-08 | 2019-12-27 | 中铁工程服务有限公司 | Prevent that shield constructs machine cutter head mud cake's washing unit |
| CN211258611U (en) * | 2019-10-29 | 2020-08-14 | 中交天和机械设备制造有限公司 | Shield constructs quick-witted muddy water storehouse stirring rod and shield constructs machine of function is washed in area |
| CN215907849U (en) * | 2020-11-17 | 2022-02-25 | 中铁二十一局集团轨道交通工程有限公司 | Device for preventing and treating cutter head mud cake in strongly weathered red sandstone stratum |
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