CN208918541U - A kind of device for abolishing cutterhead mud cake - Google Patents
A kind of device for abolishing cutterhead mud cake Download PDFInfo
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- CN208918541U CN208918541U CN201821615057.2U CN201821615057U CN208918541U CN 208918541 U CN208918541 U CN 208918541U CN 201821615057 U CN201821615057 U CN 201821615057U CN 208918541 U CN208918541 U CN 208918541U
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Abstract
The utility model proposes a kind of devices for abolishing cutterhead mud cake.The present apparatus includes defeated device and rubble input unit outside slurries, and rubble input unit includes agitator tank, bentonite tank, pump first, pipeline first and pump second.The advantages of the utility model: structure is simple, does not need the Operating Pressure that opens a position, and does not need construction shaft, does not need to reinforce stratum, mud cake is abolished high-efficient, and the duration is shorter, puts into low, highly-safe, it is convenient to operate, and has extensive application value and good economic serviceability.
Description
Technical field
The utility model relates to shield-tunneling constructions, particularly relate to a kind of device for abolishing cutterhead mud cake.
Background technique
With the development of economy, scientific and technical progress, the demand to interconnect, Tunnel Engineering and rail traffic obtain
Explosive growth, public railway tunnel, the more engineerings such as river tunnel over strait and city underground are more and more, and shield method is more and more
Engineering in promote and apply.
Shield method excavates tunnel using shield machine, it is desirable that shield machine has certain adaptability to stratum.In tunnel
During road excavates, when Muddy Bottoms clay, silty clay, mud stone etc. bad ground excavate, cutterhead surface easily adheres to shield machine
Clay is cleared up not in time, is easy to paste cutterhead extremely, is accumulated over a long period and form a thick layer mud cake on cutterhead surface, make cutter knife
Disk loses the ability of excavation, significantly reduces pile penetration, seriously affects shield driving efficiency.
Shield cutter mud lining, knife disc tool can not continue to cut soil, the parameters such as thrust, torque and the temperature of shield machine
It will increase, slag discharge amount significantly reduces, and the excavation ability of shield will have a greatly reduced quality.In face of this operating condition, it is necessary to abolish shield machine
The mud cake of cutterhead can just make cutterhead have normal excavation ability, it is ensured that normal construction, safety are tunneled.
In existing engineer application, for the incrusted problem of cutterhead, many processing methods are also found out.Slight knot
Mud cake phenomenon, it is main that incrusted cutterhead is impregnated using liquid such as injection foaming agent, dispersing agents, after being soaked for a period of time
High speed rotation cutterhead again is thrown away mud cake by centrifugal force.
For mud lining serious situation, worker's warehouse entry with pressure is needed, the mud cake on cutterhead is carried out to abolish cleaning.It is with pressure
Warehouse entry needs complicated armament-related work, such as mud film processed, reduces muddy water storehouse liquid level or reduces the height etc. of Tu Cang.Worker is with pressure
Warehouse entry carries out mud cake using tools such as Hydraulic pick, pneumatic picks to abolish cleaning, and labor intensity of workers is very big, and risk is very high, while face
Face the risk of face collapsing；Extremely unstable stratum is also needed to carry out grouting and reinforcing to face, is abolished with reducing to open a position
Risk.For extremely complex and unstable stratum, the mud cake, or even cost high cost with pressure abolished that be difficult to open a position is in shield
Machine knife disk men working ahead vertical shaft, then worker enters before cutterhead and abolishes to mud cake.
In existing construction, some non-mud cake restructuring bankrupts that open a position also are explored, since shield machine itself limits and excavates
The influence of segment structures, does not promote and apply on a large scale.Process flow is abolished according to some non-mud cakes that open a position to speculate,
Opposite open a position of expense abolishes the reduction of mud cake method very much, but it is still very big to pay wages.
Mud cake restructuring bankrupt, one side worker warehouse entry with pressure, labor intensity of workers is very big, and risk is very high；On the one hand for
Extremely unstable stratum needs to reinforce face and its periphery soil body, invests very big, long construction period, seriously affects pick
And then it and delays work costly；In addition, some non-mud cake restructuring bankrupts that open a position are restricted by multi-party factor, the extent of spreading amd application has
Limit.
Utility model content
The utility model proposes a kind of device for abolishing cutterhead mud cake, solves traditional mud cake and abolish that risk is big, and open a position work
Industry complex process, labor intensity of workers are big, input cost is high, mud cake abolishes a series of problems such as period length.
The technical solution of the utility model is achieved in that
A kind of device for abolishing cutterhead mud cake, including defeated device outside slurries further include rubble input unit, rubble input dress
It sets including agitator tank and bentonite tank, agitator tank and bentonite tank are connected to excavation storehouse.
The agitator tank is connect with pump first, and pump first is connect with pipeline first, and bentonite tank is connect with pump second, pumps second and pipeline
Second connection, pipeline first and pipeline second, which protrude into, to be excavated in storehouse.
The pump first and pump second is delivery pump, and pipeline first and pipeline second are conveyance conduit, and delivery pump connects with pipeline is merged
It connects, merges pipeline and connect respectively with agitator tank, bentonite tank, delivery pump is connect with conveyance conduit, and the inserting end of conveyance conduit is set
There is rubble to starch spout.
The agitator tank is connect with third valve, and third valve is connect with pipeline is merged, bentonite tank and the 4th valve
Connection, the 4th valve are connect with pipeline is merged, and delivery pump is connect with the second valve, and the second valve is connect with check valve, check valve
It is connect with the first valve, the first valve is connect with conveyance conduit.
The check valve is rubber flexible check valve.
The changeover portion of the rubble slurry spout is elbow.
Defeated device includes multi-purpose station pipeline outside the slurries, and multi-purpose station pipeline is equipped with the 5th valve.
The advantages of the utility model: the apparatus structure is simple, and the equipment that shield machine itself carries is able to satisfy requirement substantially；No
The Operating Pressure that opens a position is needed, the risk for the Operating Pressure initiation that opens a position is largely avoided, avoids the Complicated Flow for the operation that opens a position,
The labor intensity for reducing worker improves the work situation of worker；Construction shaft is not needed, mud cake is shortened and abolishes the time；
It does not need to reinforce stratum, avoids high cost, extremely shorten the duration；Mud cake abolish it is high-efficient, the duration compared with
Short, investment is low, highly-safe, and it is convenient to operate, and has extensive application value and good economic serviceability.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
FIG. 1 is a schematic structural view of the utility model.
In figure: 1. cutterheads, 2. soil bodys, 3. shield shells, 4. sections of jurisdiction, 5. rubbles slurry, 6. rubbles slurry spout, 7. conveyance conduits, 8.
First valve, 9. check valves, 10. second valves, 11. delivery pumps, 12. third valves, 13. the 4th valves, 14. agitator tanks, 15.
Bentonite tank, 16. multi-purpose station pipelines, 17. the 5th valves.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are under that premise of not paying creative labor
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment 1
As shown in Figure 1, a kind of device for abolishing cutterhead mud cake, the present apparatus are applied on shield machine, existing shield machine structure
Including shield shell 3, the front end of shield shell 3 is the excavation storehouse equipped with cutterhead, and the rear end supporting section of jurisdiction 4 of shield shell 3, the present apparatus includes protruding into out
Defeated device outside rubble input unit and slurries in storehouse is dug, rubble input unit includes rubble slurry spout 6, conveyance conduit 7, first
Valve 8, check valve 9, the second valve 10, delivery pump 11, rubble starch 6 changeover portion of spout and are equipped with elbow, and the import of delivery pump 11 is logical
Merging pipeline is crossed to be connected with agitator tank 14 and bentonite tank 15, check valve 9 be mounted on the first valve 8 and the second valve 10 it
Between, check valve 9 is rubber flexible check valve, and the second valve 10 is connected by pipeline with delivery pump 11, agitator tank 14 and merging pipe
Third valve 12 is installed between road, the 4th valve 13, defeated device outside slurries are installed between bentonite tank 15 and merging pipeline
Including multi-purpose station pipeline and the 5th valve.
As shown in Figure 1, the construction method of the present embodiment by pile penetration, pushes away in the Shield Construction Method Used to the soil body 2
The many factors such as power, torque, slag discharge amount, temperature judge cutterhead 1 whether mud lining, discovery 1 mud lining of cutterhead must handle in time,
Cutterhead mud cake is carried out using this method to abolish, the method is as follows:
A has found 1 mud lining of cutterhead, prepares mud film first with bentonite, carries out pressure stabilizing using shield machine pressure-retaining system, prevents
Only face collapses.
B mud film preparation is completed, and is reduced and is excavated storehouse level height, and level height is reduced to and excavates the 1/4 ~ 1/3 of storehouse height.
C reaffirms whether mud film is intact, after mud film destroys, needs to repair in time.
D gets rubble and slurry mixture i.e. rubble slurry 5 ready, is sufficiently stirred, and meet delivery pump 11 in agitator tank 14
Conveying requires.
E starts cutterhead 1, and the transfer of cutterhead 1 is adjusted to 0.4 ~ 0.6r/min.
F opens the first valve 8, the second valve 10 and third valve 12, closes the 4th valve 13, starts delivery pump 11, will
Rubble slurry 5 starches 5 to the 5/8 ~ 6/8 of excavation storehouse height to storehouse, conveying rubble is excavated by pipeline.
G closes third valve 12, opens the 4th valve 13, pumps a certain amount of bentonite using delivery pump 11, then stop
The first valve 8 is closed in only delivery pump 11.
H is transferred out extra bentonite using multi-purpose station pipeline 16, is then shut off the 5th valve 17.
I improves 1 revolving speed of cutterhead, allows 1 fast idle of cutterhead, and idler revolutions are 1.5 ~ 2r/min, and interval change cutterhead
It turns to, by rubble slurry and the rubbing action of cutterhead and the centrifugal force of cutterhead itself, the mud cake on cutterhead is abolished.
The camera or examination that j is carried by shield machine, which promote, sees whether there is normal boring parameter, judges that mud cake is
It is no to clean out；If mud cake is not cleaned, it should continue the cutterhead that dallies, until mud cake is cleaned.
After k mud cake is cleaned, extra bentonite slurry is discharged by multi-purpose station pipeline 16, then restores driving shape
State.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of device for abolishing cutterhead mud cake, including defeated device outside slurries, it is characterised in that: it further include rubble input unit,
Rubble input unit includes agitator tank (14) and bentonite tank (15), and agitator tank (14) and bentonite tank (15) connect with excavation storehouse
It is logical.
2. the device according to claim 1 for abolishing cutterhead mud cake, it is characterised in that: the agitator tank (14) and pump first
Connection, pump first are connect with pipeline first, and bentonite tank (15) is connect with pump second, and pump second is connect with pipeline second, pipeline first and pipeline second
It protrudes into and excavates in storehouse.
3. the device according to claim 2 for abolishing cutterhead mud cake, it is characterised in that: the pump first and pump second is conveying
Pump (11), pipeline first and pipeline second are conveyance conduit (7), and delivery pump (11) is connect with pipeline is merged, merging pipeline respectively with stir
Tank (14), bentonite tank (15) connection are mixed, delivery pump (11) is connect with conveyance conduit (7), and the inserting end of conveyance conduit (7) is equipped with
Rubble starches spout (6).
4. the device according to claim 3 for abolishing cutterhead mud cake, it is characterised in that: the agitator tank (14) and third
Valve (12) connection, third valve (12) are connect with pipeline is merged, and bentonite tank (15) is connect with the 4th valve (13), the 4th valve
Door (13) is connect with pipeline is merged, and delivery pump (11) is connect with the second valve (10), and the second valve (10) and check valve (9) are even
It connects, check valve (9) is connect with the first valve (8), and the first valve (8) is connect with conveyance conduit (7).
5. the device according to claim 4 for abolishing cutterhead mud cake, it is characterised in that: the check valve (9) is rubber
Flexible check valve.
6. the device according to claim 3 for abolishing cutterhead mud cake, it is characterised in that: rubble slurry spout (6)
Changeover portion is elbow.
7. the device according to claim 1 to 3 for abolishing cutterhead mud cake, it is characterised in that: defeated dress outside the slurries
It sets including multi-purpose station pipeline (16), multi-purpose station pipeline (16) is equipped with the 5th valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821615057.2U CN208918541U (en) | 2018-09-30 | 2018-09-30 | A kind of device for abolishing cutterhead mud cake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821615057.2U CN208918541U (en) | 2018-09-30 | 2018-09-30 | A kind of device for abolishing cutterhead mud cake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208918541U true CN208918541U (en) | 2019-05-31 |
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ID=66708187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821615057.2U Active CN208918541U (en) | 2018-09-30 | 2018-09-30 | A kind of device for abolishing cutterhead mud cake |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
| CN112431604A (en) * | 2020-11-19 | 2021-03-02 | 中铁九局集团第二工程有限公司 | Mudstone stratum shield mud cake anti-caking system and anti-caking method |
-
2018
- 2018-09-30 CN CN201821615057.2U patent/CN208918541U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109113753A (en) * | 2018-09-30 | 2019-01-01 | 中铁工程装备集团有限公司 | A kind of device and method for abolishing cutterhead mud cake |
| CN109113753B (en) * | 2018-09-30 | 2024-08-16 | 中铁工程装备集团有限公司 | Device and method for breaking mud cake of cutterhead |
| CN112431604A (en) * | 2020-11-19 | 2021-03-02 | 中铁九局集团第二工程有限公司 | Mudstone stratum shield mud cake anti-caking system and anti-caking method |
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