CN208267852U - Shield machine soil cutting device with wedge cut face - Google Patents
Shield machine soil cutting device with wedge cut face Download PDFInfo
- Publication number
- CN208267852U CN208267852U CN201820726569.XU CN201820726569U CN208267852U CN 208267852 U CN208267852 U CN 208267852U CN 201820726569 U CN201820726569 U CN 201820726569U CN 208267852 U CN208267852 U CN 208267852U
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- shield machine
- knife chain
- soil
- cutting device
- chain
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- 239000002689 soil Substances 0.000 title claims abstract description 76
- 238000009412 basement excavation Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 11
- 230000005641 tunneling Effects 0.000 abstract description 6
- 230000001276 controlling effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of shield machine soil cutting device with wedge cut face, the soil cutting device is installed on the soil cabin siding of shield machine front end, its excavation face is wedge shaped, several vertical knife chains, lateral knife chain and the small cutterhead of rotation, the soil cabin siding including being located on the soil cabin siding are parallel with wedge cut face；And during shield machine driving, the driving attitude of the shield machine is controlled by controlling the rotation direction of vertical knife chain and/or lateral knife chain.The utility model has the advantages that: shield machine excavation face is wedge shaped to effectively prevent excavation face unstability that earth's surface is caused to settle, by the steering for controlling soil cutting device upper slitter chain, the driving attitude that shield machine can flexibly be controlled, prevents occurring shift phenomenon in tunneling process；The ability that knife chain cuts stratum is strong, reduces the thrust of pushing tow jack, can accelerate shield machine driving speed, shortens construction period.
Description
Technical field
The utility model relates to shield machine technical fields, and in particular to a kind of shield machine soil body with wedge cut face is cut
Turning device.
Background technique
The excavation face of traditional shield machine generally at vertical plane, therefore during shield-tunneling construction its jacking force size it is direct
It is related to the protuberance for excavating regional stratum and sedimentation is easy to cause vertical excavation face unstability when the jacking force of shield machine is less than normal
It even collapses, then earth's surface is caused to settle.
In addition, shield machine overall quality is larger, and its front end includes various power-equipments, cutterhead, and soil cabin siding etc. causes
The head weight of shield machine is greater than its aft weight.When shield machine is during tunneling construction, easily generation shield machine front
It is pressed into soil layer, causes shield machine direction of advance that downward offset occurs, is i.e. bundle head phenomenon.And traditional shield machine is generally adopted
With rotating cutter head, the direction of advance and posture of shield machine can only control adjustment by the jack of shield drive end unit.However,
This method flexibility adjusted by jack is poor, shifts from shield machine and needs longer distance to completing to rectify a deviation,
When certain special stratum are excavated, the driving route deviation value of shield machine can even exceed code requirement.
Largely practice have shown that, when soft soil layer carries out shield-tunneling construction, stratum is easily settled, and can even be led when serious
It causes shield machine to be buried, causes the major accidents such as equipment damage, shield tunnel are scrapped and road surface cavity collapses.
Summary of the invention
The purpose of this utility model is a kind of with wedge cut face according to providing in place of above-mentioned the deficiencies in the prior art
Shield machine soil cutting device, the soil cutting device of the shield machine is by being set as wedge cut face, to effectively prevent out
Digging face unstability leads to ground settlement, while being adjusted by the rotation direction of vertical knife chain and lateral knife chain on soil cutting device
Driving attitude of the whole shield machine in tunneling process.
The utility model aim realization is completed by following technical scheme:
A kind of shield machine soil cutting device with wedge cut face, is installed on the soil cabin siding of shield machine front end
On, it is characterised in that the excavation face of the soil cutting device is wedge shaped, and the soil cutting device includes being located at the soil cabin
Several vertical knife chains, lateral knife chain and the small cutterhead of rotation, the soil cabin siding on siding are parallel with wedge cut face.
The wedge cut face and horizontal plane are at 30 ° -40 ° of angle.
The vertical knife chain rectangular array shape is laid in the middle part of the soil cabin siding, and the transverse direction knife chain is laid respectively
Above and below the vertical knife chain region.
The small cutterhead of rotation is laid in the vertical knife chain and does not cover on the soil cabin siding with the lateral knife chain
Region in.
The vertical knife chain and the lateral knife chain by pedrail mechanism and are arranged at intervals at the pedrail mechanism surface
On cutter formed；The cutter can be the combination of one or both of scraper, hobboing cutter.
It is a kind of to be related to the attitude control method of any shield machine soil cutting device with wedge cut face,
The attitude control method is characterized in that the following steps are included: during shield machine driving, by control vertical knife chain and/
Or the rotation direction of lateral knife chain adjusts the driving attitude of the shield machine.
When the driving attitude of the shield machine is offset up, by controlling the rotation direction of the vertical knife chain,
The down force that native face is met to increase the excavation face soil body to the vertical knife chain, restores driving attitude to normal attitude；When
When the driving attitude of the shield machine is offset downward, the rotation direction of the vertical knife chain is controlled, to increase excavation face soil
Body meets the upward active force in native face to the vertical knife chain, restores driving attitude to normal attitude.
When the generation of the driving attitude of the shield machine deviates to the right, by controlling the rotation direction of the lateral knife chain,
The active force to the left that native face is met to increase the excavation face soil body to the lateral knife chain, restores driving attitude to normal attitude；When
When the driving attitude of the shield machine deviates to the left, by controlling the lateral knife chain, to increase excavation face to the lateral knife
Chain meets the active force to the right in native face, restores driving attitude to normal attitude.
When the driving attitude of the shield machine shifts on lateral and vertical simultaneously, while controlling the vertical knife
The rotation direction of chain and the lateral knife chain adjusts the driving attitude of the shield machine.
When the shield machine is in normal driving attitude, the soil of meeting of a part of vertical knife chain is rotated upwardly, separately
The soil of meeting of a part of vertical knife chain rotates downwards so that the excavation face soil body to the upward active force of the vertical knife chain with
Down force keeps population equilibrium；The native face of meeting of a part of lateral knife chain turns left, transverse direction knife described in another part
The native face of meeting of chain turns right, so that the excavation face soil body keeps total with active force to the right to the active force to the left of the lateral knife chain
Body balance.
The utility model has the advantages that: (1) excavation face of shield machine wedge shaped effectively prevent excavation face unstability to lead to ground
Table settles；(2) by the steering of control soil cutting device upper slitter chain, the driving attitude of shield machine can be flexibly controlled, is had
Effect ground prevent upper shield machine occur " phenomenon of kowtowing " (or cry " pricking head phenomenon ", i.e., front is pressed into soil layer, cause shield machine occur to
Forward trend down), and control shield machine can be facilitated to pass through 3 in Curve Segment and knick point location；(3) when inclined vertical knife chain
By excavation face forward with upward active force when, the advance jacking force of shield machine can be reduced, thus reduce curved section shield
It is more advantageous to complete assembled shield tunnel to protection for the outside offset in tunnel；(4) ability on knife chain cutting stratum is strong, reduces pushing tow
The thrust of jack (because when knife chain obliquely meets native face by forward upward active force to excavation face, has in direction of advance
Have component), shield machine driving speed can be accelerated, shorten construction period.
Detailed description of the invention
Fig. 1 is vertical, the lateral knife chain and the small cutterhead arrangement of rotation in the utility model on shield machine soil cutting device
Schematic diagram；
Fig. 2 is the cross-sectional view of shield machine in the utility model；
Fig. 3 is the structural schematic diagram of vertical knife chain in the utility model.
Specific embodiment
The feature of the utility model and other correlated characteristics are made further specifically by embodiment below in conjunction with attached drawing
It is bright, in order to the understanding of technical staff of the same trade:
Such as Fig. 1-3, in figure label 1-8 be respectively as follows: soil cabin siding 1, vertical knife chain 2, lateral knife chain 3, the small cutterhead 4 of rotation,
Pedrail mechanism 5, cutter 6, shield shell 7, screw conveyor 8.
Embodiment: as shown in Figure 1-3, the present embodiment is specifically related to a kind of shield machine soil cutting with wedge cut face
The excavation face of device and its attitude control method, shield machine is wedge shape, and soil cutting device is set on soil cabin siding 1, is wrapped
Vertical knife chain 2, lateral knife chain 3, the small cutterhead 4 of rotation are included, by the rotation direction realization pair for controlling vertical knife chain 2, lateral knife chain 3
The control of shield machine driving attitude.
As shown in Figure 1-3, to be wedge-shaped, the angle of the excavation face and horizontal plane is shield machine front excavation face in the present embodiment
30°-40°.The front end of shield shell 7 is soil cabin, and the wall surface of soil cabin is soil cabin siding 1, and soil cabin siding 1 is parallel with wedge cut face,
I.e. with the horizontal plane also dregs at 30 ° -40 ° of angle, for stopping soil cutting device to cut.The excavation face of shield machine
Stable and firm support can be provided for the especially soft soil layer of soil layer around excavation face by being set as wedge shape, enhance excavation face
Stability effectively prevent excavation face unstability that earth's surface is caused to settle.In addition, wedge cut face make soil layer shield machine provide to
Upper and forward active force, can reduce shield machine and tunnel required jacking force forward.
As shown in Figure 1, soil cutting device is set to the front of shield shell 7, and wedge cut face keeping parallelism, i.e., with level
At 30 ° -40 ° of angle, soil cutting device includes vertical knife chain 2, lateral knife chain 3, the small cutterhead 4 of rotation in face.Vertically knife chain 2 is in
Rectangular array shape is laid in the middle part of soil cabin siding 1, specifically, vertical knife chain 2 has two rows five column in the present embodiment, it is each vertical
Between knife chain 2 there are certain intervals but be unlikely to excessive so that each vertical knife chain 2 can be freely rotated and not interfere with each other, and
Will not because apart from it is excessive due to cause exist can not excessively scratch excavation area.Lateral knife chain 3 is laid in the upper of vertical knife chain 2 respectively
Side and lower section, specifically, a lateral knife chain 3 is laid in the top and lower section of vertical knife chain 2 respectively in the present embodiment.Rotation
Small cutterhead 4, which is scattered, is laid in vertical knife chain 2 and the lateral unlapped region on soil cabin siding 1 of knife chain 3, reduces cutter head
Fail the excavation area of contact.
As Figure 2-3, the vertical knife chain 2 on cutter head and lateral knife chain 3 are arranged by pedrail mechanism 5 and interval
Cutter 6 on 5 surface of pedrail mechanism forms.Cutter 6 can be one of scraper, hobboing cutter or two kinds of combinations, specifically can root
The scraper and hobboing cutter of different number are installed according to strata condition to be excavated on vertical knife chain 2 and lateral knife chain 3, it may be assumed that when wait excavate
When regional stratum is harder or stone is more, selection installs more hobboing cutter on vertical knife chain 2 and lateral knife chain 3, for breaking
Rock, and scraper quantity is then relatively fewer, for cutting soil；When excavating that regional stratum is softer or stone is less, vertically
More scraper is installed on knife chain 2 and lateral knife chain 3, and hobboing cutter quantity is then relatively fewer.It rotates and is equally equipped on small cutterhead 4
Cutter is to cut excavation face.
As Figure 2-3, vertical knife chain 2 carries out vertical rotating by the drive of pedrail mechanism 5, and pacifies on vertical knife chain 2
Equipped with cutter 6, to persistently carry out scratching realization excavation to excavation face stratum with cutter 6.Similarly, lateral knife chain 3 can carry out
Lateral rotation, band cutter 6 persistently scratches excavation face stratum, and rotates small cutterhead 4 and can do around its axle center and rotate, and is revolving
The cutter installed thereon during turning also scratches excavation contact surface.Above-mentioned three kinds scratch mode while carrying out, and cut
The dregs come is sent by screw conveyor 8 to soil cabin, to adjust excavation soil layer soil cabin pressure or directly transport away.By
Ability in knife chain cutting stratum is strong, so that the soil cutting device of shield machine is had powerful excavation ability, not only can be reduced knife
The replacement of tool may also speed up the speed of shield machine driving, shorten construction period.
Based on the shield machine of the above-mentioned soil cutting device with wedge cut face, present embodiments provide a kind of with wedge
The driving attitude control method of the shield machine of shape excavation face soil cutting device, method includes the following steps: in shield machine
In tunneling process, the driving attitude of shield machine is adjusted by controlling the rotation direction of vertical knife chain 2 and/or lateral knife chain 3.Tool
Mainly (offset of signified shield machine is with the direction of advance of shield machine in the present embodiment in the following several ways for body controlling means
For reference direction；And since the stress in horizontal direction does not influence the driving attitude adjustment of shield machine, therefore when following situations analysis
Ignore the stress in horizontal direction):
(1) when the driving attitude of shield machine is offset up, by controlling the rotation direction of the vertical knife chain 2 of each group,
The downward force component that native face is met to increase the excavation face soil body to vertical knife chain 2, moves downward shield machine, thus shield machine
It is normal that driving attitude is able to adjustment and recovery
(2) when the driving attitude of shield machine is offset downward, by controlling the rotation direction of the vertical knife chain 2 of each group,
To add the excavation face soil body to meet the upward force component in native face to vertical knife chain 2, move upwards shield machine, thus the pick of shield machine
It is normal that adjustment and recovery is able into posture；
(3) when the generation of the driving attitude of shield machine deviates to the left, by controlling the rotation direction of each group transverse direction knife chain 3,
The active force to the right that native face is met to increase the excavation face soil body to lateral knife chain 3, moves right shield machine, thus the pick of shield machine
It is normal that adjustment and recovery is able into posture；
(4) when the generation of the driving attitude of shield machine deviates to the right, by controlling the rotation direction of each group transverse direction knife chain 3,
The active force to the left that native face is met to increase the excavation face soil body to lateral knife chain 3, moves downward shield machine, thus the pick of shield machine
It is normal that adjustment and recovery is able into posture；
(5) when the driving attitude of shield machine occurs to deviate to upper left side, by controlling the rotation direction of vertical knife chain 2,
The native face of meeting of vertical knife chain 2 is set to be applied downward reaction force by stratum is excavated；The rotation for controlling lateral knife chain 3 is controlled simultaneously
Direction makes the native face of meeting of lateral knife chain 3 be applied reaction force to the right by excavating stratum, two reaction force collective effects in
Shield machine moves it to the right, so that the driving attitude of shield machine is adjusted；
(6) when the driving attitude of shield machine occurs to deviate to upper right side, by controlling the rotation direction of vertical knife chain 2,
Vertical knife chain 2 is set to be applied downward reaction force by stratum is excavated；The rotation direction for controlling lateral knife chain 3 is controlled simultaneously,
So that lateral knife chain 3 is applied reaction force to the left by excavating stratum, two reaction force collective effects in shield machine make its to
Lower left movement, so that the driving attitude of shield machine is adjusted；
(7) when lower section offset to the left occurs for the driving attitude of shield machine, the rotation direction of vertical knife chain 2 is controlled, makes to erect
Applied upward reaction force by stratum is excavated to knife chain 2；The rotation direction for controlling lateral knife chain 3 is controlled simultaneously, makes transverse direction
Knife chain 3 is made it to upper right side by the reaction force of stratum application to the right, two reaction force collective effects are excavated in shield machine
Movement, so that the driving attitude of shield machine is adjusted；
(8) when the generation of the driving attitude of shield machine deviates to the right, the rotation direction of vertical knife chain 2 is controlled, makes to erect
Applied upward reaction force by stratum is excavated to knife chain 2；The rotation direction for controlling lateral knife chain 3 is controlled simultaneously, makes transverse direction
Knife chain 3 is made it to upper left side by the reaction force of stratum application to the left, two reaction force collective effects are excavated in shield machine
Movement, so that the driving attitude of shield machine is adjusted；
(9) when shield machine is with normal posture tunneling construction, following control measure should be taken for vertical knife chain 2:
The native face of meeting for controlling each vertical knife chain 2 of top half is all rotated to the same direction, while controlling lower half portion
The native face of meeting of each vertical knife chain 2 is all rotated in the opposite direction, so that the vertical knife chain 2 of upper and lower part be made to be opened
The reaction force for digging stratum is equal in magnitude, contrary, and the two is cancelled out each other, and stress is in equilibrium state on the whole, thus
Stablize the posture holding of shield machine in the vertical direction constant；
And following control measure should be taken for lateral knife chain 3: positioned at the number of the lateral knife chain 3 on 1 top of soil cabin siding
Amount is 2, is respectively in left and right and symmetrical, and the lateral knife chain 3 for controlling arranged on left and right sides is rotated in a reverse direction, thus
Keep the two equal in magnitude, contrary by the reaction force for excavating stratum, the two is cancelled out each other, and stress is in flat on the whole
Weighing apparatus state, so that it is constant to stablize the posture holding of shield machine 7 in the horizontal direction；Two groups positioned at 1 lower part of soil cabin siding are horizontal
Control is done in the same fashion to knife chain 3.
This application method in the construction process can the driving attitude to shield machine effectively controlled, adjust flexible operation
Simplicity, adjustment time is short, shifts from shield machine short to the required distance of correction is completed, to guarantee the driving road of shield machine
Line deviation value is without departing from construction requirement.Additionally due to the excavation face of shield machine is wedge shape, when inclined vertical knife chain is opened
The jacking force that can reduce needed for shield machine advances upwardly and when forward active force is dug, it is possible thereby to reduce curve construction
The outside offset of section shield tunnel is conducive to the assembly that shield tunnel is completed in protection.
The beneficial effect of the present embodiment is: the excavation face by the way that shield machine is arranged is wedge shape, can be provided for excavation face surely
Fixed firm support, effectively prevent excavation face unstability that earth's surface is caused to settle；Pass through control soil cutting device upper slitter chain
It turns to, can flexibly control the driving attitude of shield machine, prevent occurring shift phenomenon in tunneling process；The setting of knife chain, which enhances, cuts
The ability on stratum is cut, shield machine driving speed can be accelerated, shortens construction period, reduces cutter changing.
Claims (5)
1. a kind of shield machine soil cutting device with wedge cut face, is installed on the soil cabin siding of shield machine front end,
It is characterized in that the excavation face of the soil cutting device is wedge shaped, the soil cutting device includes being located at the soil cabin siding
On several vertical knife chains, lateral knife chain and the small cutterhead of rotation, the soil cabin siding it is parallel with wedge cut face.
2. a kind of shield machine soil cutting device with wedge cut face according to claim 1, it is characterised in that institute
Wedge cut face and horizontal plane are stated into 30 ° -40 ° of angle.
3. a kind of shield machine soil cutting device with wedge cut face according to claim 1, it is characterised in that institute
The middle part that vertical knife chain rectangular array shape is laid in the soil cabin siding is stated, the transverse direction knife chain is laid in described vertical respectively
Above and below knife chain region.
4. a kind of shield machine soil cutting device with wedge cut face according to claim 3, it is characterised in that institute
It states the small cutterhead of rotation and is laid in the vertical knife chain and the lateral knife chain on the soil cabin siding in unlapped region.
5. a kind of shield machine soil cutting device with wedge cut face according to claim 1, it is characterised in that institute
Vertical knife chain and the lateral knife chain are stated by pedrail mechanism and the cutter institute being arranged at intervals on the pedrail mechanism surface
Composition；The cutter can be the combination of one or both of scraper, hobboing cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726569.XU CN208267852U (en) | 2018-05-16 | 2018-05-16 | Shield machine soil cutting device with wedge cut face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726569.XU CN208267852U (en) | 2018-05-16 | 2018-05-16 | Shield machine soil cutting device with wedge cut face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208267852U true CN208267852U (en) | 2018-12-21 |
Family
ID=64681134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820726569.XU Expired - Fee Related CN208267852U (en) | 2018-05-16 | 2018-05-16 | Shield machine soil cutting device with wedge cut face |
Country Status (1)
| Country | Link |
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| CN (1) | CN208267852U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468547A (en) * | 2018-05-16 | 2018-08-31 | 华东交通大学 | Shield machine soil cutting device and its attitude control method with wedge cut face |
| CN113417651A (en) * | 2021-07-22 | 2021-09-21 | 华东交通大学 | Shield cutter head device for efficiently cutting reinforced concrete structure and working method |
| CN114233310A (en) * | 2021-12-24 | 2022-03-25 | 济南市市政工程设计研究院（集团）有限责任公司 | Square culvert jacking construction device, system and method |
-
2018
- 2018-05-16 CN CN201820726569.XU patent/CN208267852U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108468547A (en) * | 2018-05-16 | 2018-08-31 | 华东交通大学 | Shield machine soil cutting device and its attitude control method with wedge cut face |
| CN113417651A (en) * | 2021-07-22 | 2021-09-21 | 华东交通大学 | Shield cutter head device for efficiently cutting reinforced concrete structure and working method |
| CN114233310A (en) * | 2021-12-24 | 2022-03-25 | 济南市市政工程设计研究院（集团）有限责任公司 | Square culvert jacking construction device, system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 |