CN105019912B - Shield tunneling method and shield tunneling machine - Google Patents
Shield tunneling method and shield tunneling machine Download PDFInfo
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- CN105019912B CN105019912B CN201510440671.4A CN201510440671A CN105019912B CN 105019912 B CN105019912 B CN 105019912B CN 201510440671 A CN201510440671 A CN 201510440671A CN 105019912 B CN105019912 B CN 105019912B
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Abstract
The present invention relates to a shield tunneling method and a shield tunneling machine. The shield tunneling method comprises the following steps that 1) the bottom of the soil body in a shield shell 1 of the shield tunneling machine is hollowed; 2) during the traveling process of the shield tunneling machine, the upper soil body of which the bottom is hollowed drops on a soil body conveyer 3 under the action of the gravity or pressure, and is conveyed by the soil body conveyer 3. The shield tunneling machine comprises a front shield, and the front shield comprises the shield shell 1, a digging tunneling knife 2, the soil body conveyer 3, a step grid 4, an air pressure balance chamber 5, a sealing plate 6 and a soil pressure balance chamber 7. The shield tunneling method and the shield tunneling machine of the present invention integrate the advantages of the grid extrusion type shield tunneling, the compressed air balance shield tunneling, the soil pressure balance shield tunneling and the muddy water balance shield tunneling, and overcomes the disadvantages that the disturbance of the grid extrusion type shield tunneling to the stratum soil body is large, the compressed air balance shield tunneling may cause an eruption accident, and the soil pressure balance shield tunneling and the muddy water balance shield tunneling are complicated in structure and high in cost.
Description
Technical field
The present invention relates to a kind of shield method and shield machine, belong to shield technique field.
Background technology
The principle of grid compression concrete side wall is that the frictional force between the grid and the soil body produced by the extruding to the soil body is reached
To the balance with soil pressure and water pressure, ground is also easy to produce larger grand sunken change, and the disturbance of layer soil body is larger over the ground.
The principle of compressed air balance shield is that compressed air pressure keeps balance, compressed air with soil pressure and water pressure
Pressure greater than or equal to tunnel front bottom soil pressure and water pressure sum, as hydraulic pressure has obvious gradient, therefore,
At top, superfluous pressure can admit air into stratum, when soil particle is due to air-flow disequilibrium, the shallower tunnel of overburden layer
Road work surface just has leakage and causes " eruption ", and may cause catastrophic consequence.
The principle of earth pressure balanced shield, EPBS is the soil of cutterhead rotary cutting excavation face, and broken soil is entered by cutterhead opening
Bury storehouse, after soil falls native orlop portion, transported on belt conveyor by conveying worm.
During slurry shield is the muddy water storehouse for pump into certain density mud slurry shield, the soil scaled off with cutterhead
Slag is flowed into along cutter groove with subsoil water and is excavated in room, and the concentration of hydraulic mixture and pressure in muddy water storehouse gradually increases, and is equilibrated at digging face
Soil pressure and water pressure, mud film or the hydraulically-formed permeable wall of mud are formed in excavation face, stable excavation are carried out to excavation face.
The common principle of above-mentioned earth pressure balanced shield, EPBS and slurry balance shield method be by the front end face knife cutting soil body,
And the main shaft of cutterhead, all perpendicular to excavation face, the complex structure of cutterhead, cost are high.
The content of the invention
Proposed by the present invention is a kind of shield method and shield machine, and its purpose aims to solve the problem that above-mentioned scarce existing for prior art
Fall into, with, simple structure little to top layer land disturbance, low cost, it is safe and reliable the features such as.
Technical scheme：A kind of shield method, comprises the steps：
1）Soil body bottom in shield machine shield shell 1 is hollowed out；
2）During traveling, the top soil body that bottom has hollowed out falls into lower section to shield machine by gravity or under pressure
Soil body conveyer 3 on, and transported by soil body conveyer 3.
A kind of shield machine, including anterior shield, the anterior shield include shield shell 1, driving knife 2, soil body conveyer 3, ladder network 4, gas
Pressure balance cylinder 5, shrouding 6 and earth pressure balance room 7, wherein driving knife 2, soil body conveyer 3, ladder network 4, shrouding 6 and soil pressure are flat
Weighing apparatus room 7 is arranged in shield shell 1, and soil body conveyer 3 is arranged on the lower section of ladder network 4, and the rear portion of soil body conveyer 3 is provided with soil
Pressure balance cylinder 7, shrouding 6, shield shell 1, soil body conveyer 3, ladder network 4 and the front end soil body surround air pressure balance room 5, or envelope jointly
Plate 6, shield shell 1, soil body conveyer 3, ladder network 4, the front end soil body and driving knife 2 surround air pressure balance room 5,1 bottom of shield shell jointly
Upper plane, the front of soil body conveyer 3 and grid 4 lower section be provided with driving knife 2, tunnel soil of the knife 2 to 1 inner bottom part of shield shell
Body is excavated, and is delivered on soil body conveyer 3, the shield machine during traveling, the top of the differing heights that bottom has hollowed out
Jing after the layering of ladder network 4, subregion falls on the soil body conveyer 3 of lower section, and by soil the soil body by gravity or under pressure
Body conveyer 3 is transported.
A kind of shield machine, including anterior shield, the anterior shield include shield shell 1, soil body conveyer 3, ladder network 4, air pressure balance room
5th, shrouding 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room 11, wherein soil body conveyer 3, ladder network 4, envelope
Plate 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room（11）In shield shell 1, soil body conveyer 3 is arranged on
The top of the lower section and muddy water storehouse 10 of ladder network 4, the rear portion of soil body conveyer 3 are provided with earth pressure balance room 7, shrouding 6, shield shell
1st, the soil body above the horizontal grid 4-1 of soil body conveyer 3, ladder network 4 and the front end bottom surrounds air pressure balance room 5 jointly,
Nozzle 9 is arranged on the bottom of ladder network 4, the bottom of soil body conveyer 3, shield shell 1, shrouding 6, the horizontal grid 4- of the front end bottom
The soil body below 1 surrounds muddy water storehouse 10 jointly, and mud and water balance room 11 is arranged on the rear portion in muddy water storehouse 10, and nozzle 9 will by waterpower
In shield shell 1, the soil body of lower section is changed into mud mixture, and mud mixture Jing mud and water balances room 11 is delivered to backing, and the shield machine exists
In traveling process, the top soil body of the differing heights that bottom has hollowed out Jing after the layering of ladder network 4, by gravity or under pressure
Subregion is fallen on the soil body conveyer 3 of lower section, and is transported by soil body conveyer 3.
Advantages of the present invention：It is integrated with grid compression concrete side wall, compressed air balance shield, earth pressure balanced shield, EPBS and muddy water
The advantage of balance shield, layer soil body disturbance is big over the ground, compressed air shield may cause " eruption " to overcome grid extruding shield
The high shortcoming of accident, earth pressure balanced shield, EPBS and slurry balance shield complex structure cost.
Description of the drawings
Fig. 1 is spirally to tunnel knife rectangular shield owner's view（Embodiment 1）；
Fig. 2 be I in Fig. 1 at partial enlarged drawing；
Fig. 3 is the sectional view of A-A in Fig. 1；
Fig. 4 be II in Fig. 3 at partial enlarged drawing；
Fig. 5 is the sectional view of B-B in Fig. 1；
Fig. 6 be III in Fig. 5 at partial enlarged drawing；
Fig. 7 is the sectional view of C-C in Fig. 3；
Fig. 8 be IV in Fig. 7 at partial enlarged drawing；
Fig. 9 is the earth stress figure in shield machine；
Figure 10 is the force diagram in D-D sections in Fig. 9；
Figure 11 is the force diagram of the existing compressed air shield soil body；
Figure 12 is scraper-type driving knife rectangular shield owner's view（Embodiment 1）；
Figure 13 be V in Figure 12 at partial enlarged drawing；
Figure 14 is the sectional view of E-E in Figure 12；
Figure 15 be VI in Figure 14 at partial enlarged drawing；
Figure 16 is the sectional view of F-F in Figure 12；
Figure 17 be VII in Figure 16 at partial enlarged drawing.
Figure 18 is the sectional view of G-G in Figure 14；
Figure 19 be VIII in Figure 18 at partial enlarged drawing；
Figure 20 is rectangular shield owner's view（Embodiment 2）；
Figure 21 be Ⅸ in Figure 20 at partial enlarged drawing.
In figure, 1 be shield shell, 2 be driving knife, 3 be soil body conveyer, 3-1 be cross conveyor, 3-2 be longitudinal conveyor,
4 be ladder network, 4-1 be horizontal grid, 4-2 be longitudinal grid, 5 be air pressure balance room, 6 be shrouding, 7 be earth pressure balance room, 8
It is transfer chamber, 9 be nozzle, 10 be muddy water storehouse, 11 is mud and water balance room.
Specific embodiment
A kind of shield method, comprises the steps：
1）Soil body bottom in shield machine shield shell 1 is hollowed out；
2）During traveling, the top soil body that bottom has hollowed out falls into lower section to shield machine by gravity or under pressure
Soil body conveyer 3 on, and transported by soil body conveyer 3.
The step 1）It can be the method excavated using machinery by the method that the soil body bottom in shield machine shield shell 1 hollows out
Or the soil body is changed into into the method that mud mixture is transported using waterpower.
As shown in figure 1, a kind of shield machine, including anterior shield, the anterior shield includes shield shell 1, driving knife 2, soil body conveyer 3, rank
Terraced grid 4, air pressure balance room 5, shrouding 6 and earth pressure balance room 7, wherein driving knife 2, soil body conveyer 3, ladder network 4, shrouding
6 and earth pressure balance room 7 be arranged on shield shell 1 in, soil body conveyer 3 be arranged on ladder network 4 lower section, after soil body conveyer 3
Portion is provided with earth pressure balance room 7, and shield shell 1, soil body conveyer 3, ladder network 4, shrouding 6 and the front end soil body surround jointly air pressure and put down
Weighing apparatus room 5, or shrouding 6, shield shell 1, soil body conveyer 3, ladder network 4, the front end soil body and driving knife 2 surround jointly air pressure balance room
5, the lower section of the upper plane, the front of soil body conveyer 3 and grid 4 at 1 bottom of shield shell is provided with driving knife 2, and driving knife 2 is to shield shell 1
The soil body of inner bottom part is excavated, and is delivered on soil body conveyer 3, the shield machine during traveling, the difference that bottom has hollowed out
Jing after the layering of ladder network 4, subregion falls into the soil body conveyer 3 of lower section to the top soil body of height by gravity or under pressure
On, and transported by soil body conveyer 3.
The soil body conveyer 3 includes that cross conveyor 3-1 and longitudinal conveyor 3-2, cross conveyor 3-1 are arranged in vertical
To the side of conveyer 3-2, the rear portion of longitudinal conveyor 3-2 is earth pressure balance room 7, and cross conveyor 3-1 will can fall above which
Under the soil body be transported on longitudinal conveyor 3-2, soil body Jing earth pressure balances room 7 can be transported to backing by longitudinal conveyor 3-2.
The cross conveyor 3-1 is the conveying worm of upper opening.
The driving knife 2 can be sped structure, and the main shaft for tunneling knife 2 is parallel to excavation face, on driving knife 2 is cylindrical
Cutter head be spiral helicine.
The driving knife 2 can also be scraper-type structure, be provided with for crushing the power knife of boulder on scraper plate.
Air pressure, soil pressure or hydraulic balance device are installed at the driving knife 2, for balancing the soil body in front of at driving knife 2
Pressure.
The ladder network 4 includes that horizontal grid 4-1 and longitudinal grid 4-2, the horizontal grid 4-1 are in inverted steps shape,
Longitudinal grid 4-2 connects the horizontal grid 4-1 of each layer and shield shell 1.
Laterally the cross section bottom belt of grid 4-1 dips down oblique angle.
The anterior shield of the shield machine also includes transfer chamber 8, and transfer chamber 8 is provided with two fan hermatic doors, and two fan hermatic doors connect respectively
Connect backing and air pressure balance room 5.
As shown in figure 20, a kind of shield machine, including anterior shield, the anterior shield include shield shell 1, soil body conveyer 3, ladder network 4,
Air pressure balance room 5, shrouding 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room 11, wherein soil body conveyer 3, rank
Terraced grid 4, shrouding 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room 11 are arranged in shield shell 1, soil body conveying
Machine 3 is arranged on the top of the lower section and muddy water storehouse 10 of ladder network 4, and the rear portion of soil body conveyer 3 is provided with earth pressure balance room 7,
The soil body above the horizontal grid 4-1 of shrouding 6, shield shell 1, soil body conveyer 3, ladder network 4 and the front end bottom surrounds gas jointly
Pressure balance cylinder 5, nozzle 9 are arranged on the bottom of ladder network 4, the bottom of soil body conveyer 3, shield shell 1, shrouding 6, the front end bottom
Laterally the soil body below grid 4-1 surrounds muddy water storehouse 10 jointly, and mud and water balance room 11 is arranged on the rear portion in muddy water storehouse 10, nozzle 9
The soil body of lower section in shield shell 1 is changed into by mud mixture by waterpower, mud mixture Jing mud and water balances room 11 is delivered to backing,
The shield machine during traveling, the top soil body of the differing heights that bottom has hollowed out Jing after the layering of ladder network 4, in gravity or
The lower subregion of pressure effect is fallen on the soil body conveyer 3 of lower section, and is transported by soil body conveyer 3.
The anterior shield of the shield machine also includes transfer chamber 8, and transfer chamber 8 is provided with two fan hermatic doors, and two fan hermatic doors connect respectively
Connect backing and air pressure balance room 5.
Embodiment 1
As shown in Fig. 1-Figure 19, the anterior shield of the shield machine includes shield shell 1, driving knife 2, soil body conveyer 3, ladder network
4th, air pressure balance room 5, shrouding 6 and earth pressure balance room 7, wherein driving knife 2, soil body conveyer 3, ladder network 4, shrouding 6 and soil
Pressure balance cylinder 7 is arranged in shield shell 1, and soil body conveyer 3 is arranged on the lower section of ladder network 4, and the rear portion of soil body conveyer 3 is installed
There is earth pressure balance room 7, shield shell 1, soil body conveyer 3, ladder network 4, shrouding 6 and the front end soil body surround air pressure balance room 5 jointly,
The lower section of the upper plane, the front of soil body conveyer 3 and grid 4 at 1 bottom of shield shell is provided with driving knife 2, and driving knife 2 is in shield shell 1
The soil body of bottom is excavated, and is delivered on soil body conveyer 3, and, during traveling, the difference that bottom has hollowed out is high for the shield machine
Subregion falls on the soil body conveyer 3 of lower section, and by soil the top soil body Jing ladder network 4 of degree by gravity or under pressure
Body conveyer 3 is transported.
Air pressure, soil pressure or hydraulic balance device are installed at driving knife 2, for balancing the pressure of the soil body in front of at driving knife 2
Power.Driving knife 2 can also be connected with air pressure balance room 5, soil in front of at knife 2 is tunneled using the pressure balance of air pressure balance room 5
The pressure of body.Now, shield shell 1, soil body conveyer 3, ladder network 4, shrouding 6, the front end soil body and driving knife 2 surround air pressure jointly
Balance cylinder 5.
The effect of driving knife 2 is to excavate the soil body of 1 inner bottom part of shield shell and be delivered to conveyer 3, in shield machine traveling process,
Hollowed out as the soil body of 1 inner bottom part of shield shell tunnels knife 2, the soil body on top can be in gravity or horizontal grid 4-1 bottom bevels
Pressure in the presence of fall into lower section soil body conveyer 3 on.
Driving knife 2 can be sped structure（As shown in Fig. 2, Fig. 6, Fig. 8）It can also be scraper-type structure（Such as Figure 13,
Shown in Figure 17, Figure 19）.The main axis parallel of spiral driving knife 2 in excavation face, it is cylindrical on cutter head be spiral helicine, which is in rotation
The soil body is excavated during turning and conveyer 3 is delivered to；Scraper-type driving knife 2 excavates the soil body in running and is delivered to conveying
Machine 3.Power knife can be installed for crushing boulder on scraper-type driving knife 2.
The present embodiment driving knife 2 with the main distinction of existing cutter head of shield machine be：1., the cutterhead of existing shield machine is to shield
Whole soil bodys in shell 1 are excavated, and the driving knife 2 of the application is only excavated to the soil body of 1 inner bottom part of shield shell；2. it is, existing
There is the cutter spindle of shield machine vertical with excavation face, and the main shaft of the driving knife 2 of the application is parallel with excavation face.
As shown in figs 1 to 6, soil body conveyer 3 includes cross conveyor 3-1 and longitudinal conveyor 3-2, cross conveyor
3-1 is arranged in the side of longitudinal conveyor 3-2, and the rear portion of soil body conveyer 3 is provided with earth pressure balance room 7, cross conveyor 3-1
The soil body fallen above which can be transported on longitudinal conveyor 3-2, longitudinal conveyor 3-2 can be by soil body Jing earth pressure balances room 7
It is transported to backing.
As shown in Figure 2, Figure 4 shows, cross conveyor 3-1 is the conveying worm of upper opening.
Cutter head on the driving knife 2 is cylindrical is spiral helicine.
As shown in figure 1, the anterior shield of the shield machine also includes transfer chamber 8, transfer chamber 8 is provided with two fan hermatic doors, and two fans are close
Closure door connects backing and air pressure balance room 5 respectively.
As shown in Fig. 3, Fig. 7, Fig. 8, ladder network 4 includes horizontal grid 4-1 and longitudinal grid 4-2, the horizontal grid
In inverted steps shape, longitudinal grid 4-2 connects the horizontal grid 4-1 of each layer and shield shell 1 to 4-1.The cross section bottom belt of horizontal grid 4-1
Dip down oblique angle.
The effect of soil body conveyer 3 is that the soil body is transported to backing, and the effect of wherein cross conveyor 3-1 is by its top
The soil body for falling is transported on middle longitudinal conveyor 3-2, and the effect of longitudinal conveyor 3-2 is by cross conveyor 3-
1 soil body sent with driving knife 2 is transported to backing.
The Main Function of ladder network 4 is：1., avoid " eruption "；2., by soil in vertical direction higher slice, water
Square fall to subregion.The effect of the ladder network 4 is illustrated below in conjunction with the accompanying drawings.
As shown in Fig. 1, Fig. 3, Fig. 7, Fig. 8, Fig. 9 and Figure 10, the earth stress figure of existing compressed air balance shield is as schemed
Shown in 11, the pressure of compressed air is greater than or equal to the soil pressure and water pressure sum of tunnel front bottom, as hydraulic pressure has
Obvious gradient, therefore, at top, superfluous pressure can admit air into stratum, when soil particle is due to air-flow disequilibrium
When, just there is leakage the shallower tunnel front of overburden layer and causes " eruption ".And the application is using the horizontal grid of inverted steps shape
4-1 makes the soil body of 5 front end of air pressure balance room also in inverted steps shape, different so as to cause to the air pressure on differing heights
The pressure loss（P crushings）So that the pressure in Fig. 9, Figure 10 suffered by the soil body both sides in D-D sections reaches balance, i.e.,：
P air pressure balances room-P crushings=P soil pressures+hydraulic pressure.
Laterally, by the soil body in vertical direction higher slice, after horizontal grid 4-1 is in inverted steps shape, the soil body is in level for grid 4-1
It is that separated regions falls on direction, the bottom belt of the cross section of horizontal grid 4-1 dips down oblique angle, the oblique angle that dips down can be by
The soil body after layering is pressed down, and accelerates the soil body to fall.
The grid of the application is that the horizontal grid of existing grid squeezing and pressing method is in water with the grid difference of existing grid squeezing and pressing method
Projection in plane is to overlap, as the thickness of grid itself causes the soil body to be extruded by grid, and the shield of the application,
It is misaligned or a small amount of coincidence that laterally grid 4-1 is projected in the horizontal plane, so laterally grid 4-1 is to the top that is in contact with it
The soil body do not produce extruding or extrude very little, so as to the disturbance of layer soil body over the ground is less.
As shown in figure 1, the effect of air pressure balance room 5 is balancing earth pressure power and water pressure.
As shown in figure 1, the effect of earth pressure balance room 7 is to avoid the air pressure of air pressure balance room 5 from longitudinal conveyor 3-2
Place is lost in.
As shown in figure 1, transfer chamber 8 is provided with two fan hermatic doors, two fan hermatic doors connect backing and air pressure balance room respectively
5.Its effect is enabled an operator in safe entrance air pressure balance room, and then carry out the exclusion of the maintenance of shield, boulder etc.
Operation.
Embodiment 2
As shown in figure 20, a kind of shield machine, including anterior shield, the anterior shield include shield shell 1, soil body conveyer 3, ladder network 4,
Air pressure balance room 5, shrouding 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room 11, wherein soil body conveyer 3, rank
Terraced grid 4, shrouding 6, earth pressure balance room 7, nozzle 9, muddy water storehouse 10 and mud and water balance room 11 are arranged in shield shell 1, soil body conveying
Machine 3 is arranged on the top of the lower section and muddy water storehouse 10 of ladder network 4, and the rear portion of soil body conveyer 3 is provided with earth pressure balance room 7,
The soil body above the horizontal grid 4-1 of shrouding 6, shield shell 1, soil body conveyer 3, ladder network 4 and the front end bottom surrounds gas jointly
Pressure balance cylinder 5, nozzle 9 are arranged on the bottom of ladder network 4, the bottom of soil body conveyer 3, shield shell 1, shrouding 6, the front end bottom
Laterally the soil body below grid 4-1 surrounds muddy water storehouse 10 jointly, and mud and water balance room 11 is arranged on the rear portion in muddy water storehouse 10, nozzle 9
The soil body of lower section in shield shell 1 is changed into by mud mixture by waterpower, mud mixture Jing mud and water balances room 11 is delivered to backing,
The shield machine during traveling, the top soil body of the differing heights that bottom has hollowed out Jing after the layering of ladder network 4, in gravity or
The lower subregion of pressure effect is fallen on the soil body conveyer 3 of lower section, and is transported by soil body conveyer 3.
The anterior shield of the shield machine also includes transfer chamber 8, and transfer chamber 8 is provided with two fan hermatic doors, and two fan hermatic doors connect respectively
Connect backing and air pressure balance room 5.
The effect of nozzle 9 is, by the sluicing soil body, to make the soil body become mud mixture.
The effect of mud and water balance room 11 is that mud mixture is delivered to backing, and keeps the pressure in muddy water storehouse 10 to put down
Weighing apparatus.
The shield method of the application goes for the shield of rectangular shield, circular shield or other special cross-section forms.
Claims (12)
1. a kind of shield method, it is characterised in that comprise the steps：
1）By shield machine shield shell（1）Interior soil body bottom hollows out；
2）During traveling, the top soil body that bottom has hollowed out falls into the soil of lower section to shield machine by gravity or under pressure
Body conveyer（3）On, and by soil body conveyer（3）Transport；
Described shield machine includes anterior shield, and the anterior shield includes shield shell（1）, driving knife（2）, soil body conveyer（3）, ladder network
（4）, air pressure balance room（5）, shrouding（6）With earth pressure balance room（7）, wherein tunneling knife（2）, soil body conveyer（3）, ladder network
（4）, shrouding（6）With earth pressure balance room（7）Installed in shield shell（1）It is interior, soil body conveyer（3）Installed in ladder network（4）Under
Side, soil body conveyer（3）Rear portion earth pressure balance room is installed（7）, shrouding（6）, shield shell（1）, soil body conveyer（3）, ladder
Grid（4）Air pressure balance room is surrounded jointly with the front end soil body（5）, or shrouding（6）, shield shell（1）, soil body conveyer（3）, ladder net
Lattice（4）, the front end soil body and driving knife（2）Surround jointly air pressure balance room（5）, shield shell（1）The upper plane at bottom, soil body conveyer
（3）Front and ladder network（4）Lower section driving knife is installed（2）, tunnel knife（2）To shield shell（1）The soil body of inner bottom part digs
Pick, and it is delivered to soil body conveyer（3）On, during traveling, the top of the differing heights that bottom has hollowed out is native for the shield machine
Body Jing ladder networks（4）After layering, subregion falls into the soil body conveyer of lower section by gravity or under pressure（3）On, and by
Soil body conveyer（3）Transport.
2. shield method according to claim 1, it is characterised in that step 1）By shield machine shield shell（1）Interior soil body bottom is dug
Empty method can be that the soil body is changed into the method that mud mixture is transported using the method for machinery excavation or using waterpower.
3. shield method according to claim 1, it is characterised in that the soil body conveyer（3）Including cross conveyor（3-
1）And longitudinal conveyor（3-2）, cross conveyor（3-1）It is arranged in longitudinal conveyor（3-2）Side, longitudinal conveyor（3-
2）Rear portion be earth pressure balance room（7）, cross conveyor（3-1）The soil body fallen above which can be transported to longitudinal conveyor
（3-2）On, longitudinal conveyor（3-2）Can be by soil body Jing earth pressure balances room（7）It is transported to backing.
4. shield method according to claim 3, it is characterised in that the cross conveyor（3-1）It is the spiral of upper opening
Conveyer.
5. shield method according to claim 1, it is characterised in that the driving knife（2）It is sped structure, tunnels knife（2）
Main axis parallel in excavation face, tunnel knife（2）Cutter head on cylindrical is spiral helicine.
6. shield method according to claim 1, it is characterised in that the driving knife（2）It is scraper-type structure.
7. shield method according to claim 6, it is characterised in that be provided with the scraper plate for crushing the power of boulder
Knife.
8. shield method according to claim 1, it is characterised in that the ladder network（4）Including horizontal grid（4-1）With
Longitudinal grid（4-2）, the horizontal grid（4-1）In inverted steps shape, longitudinal grid（4-2）Connect the horizontal grid of each layer（4-1）
With shield shell（1）.
9. shield method according to claim 8, it is characterised in that horizontal grid（4-1）Cross section bottom belt dip down
Oblique angle.
10. shield method according to claim 1, it is characterised in that the anterior shield of the shield machine also includes transfer chamber（8）, transition
Cabin（8）Two fan hermatic doors are provided with, two fan hermatic doors connect backing and air pressure balance room respectively（5）.
11. a kind of shield machines, it is characterised in that including anterior shield, the anterior shield includes shield shell（1）, soil body conveyer（3）, ladder network
（4）, air pressure balance room（5）, shrouding（6）, earth pressure balance room（7）, nozzle（9）, muddy water storehouse（10）With mud and water balance room（11）, its
Middle soil body conveyer（3）, ladder network（4）, shrouding（6）, earth pressure balance room（7）, nozzle（9）, muddy water storehouse（10）It is flat with muddy water
Weighing apparatus room（11）Installed in shield shell（1）It is interior, soil body conveyer（3）Installed in ladder network（4）Lower section and muddy water storehouse（10）It is upper
Side, soil body conveyer（3）Rear portion earth pressure balance room is installed（7）, shrouding（6）, shield shell（1）, soil body conveyer（3）, ladder
Grid（4）With the horizontal grid of the front end bottom（4-1）The soil body of top surrounds air pressure balance room jointly（5）, nozzle（9）It is arranged on
Ladder network（4）Bottom, soil body conveyer（3）Bottom, shield shell（1）, shrouding（6）, the horizontal grid of the front end bottom（4-1）
The soil body of lower section surrounds muddy water storehouse jointly（10）, mud and water balance room（11）Installed in muddy water storehouse（10）Rear portion, nozzle（9）Pass through
Waterpower is by shield shell（1）The soil body of interior lower section is changed into mud mixture, mud mixture Jing mud and water balances room（11）It is delivered to backing,
The shield machine during traveling, the top soil body Jing ladder networks of the differing heights that bottom has hollowed out（4）After layering, in gravity
Or the lower subregion of pressure effect falls into the soil body conveyer of lower section（3）On, and by soil body conveyer（3）Transport.
12. shield machines according to claim 11, it is characterised in that the anterior shield also includes transfer chamber（8）, transfer chamber（8）
Two fan hermatic doors are provided with, two fan hermatic doors connect backing and air pressure balance room respectively（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440671.4A CN105019912B (en) | 2015-07-24 | 2015-07-24 | Shield tunneling method and shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510440671.4A CN105019912B (en) | 2015-07-24 | 2015-07-24 | Shield tunneling method and shield tunneling machine |
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| Publication Number | Publication Date |
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| CN105019912A CN105019912A (en) | 2015-11-04 |
| CN105019912B true CN105019912B (en) | 2017-04-19 |
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| CN201510440671.4A Active CN105019912B (en) | 2015-07-24 | 2015-07-24 | Shield tunneling method and shield tunneling machine |
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| CN110500108B (en) * | 2019-09-24 | 2024-06-21 | 中电建铁路建设投资集团有限公司 | Novel earth pressure balance shield machine and working method |
| CN111577300A (en) * | 2020-04-20 | 2020-08-25 | 中铁十二局集团有限公司 | Construction method for shield to penetrate through dense holes in boulder and boulder stratum |
| CN111501863A (en) * | 2020-04-30 | 2020-08-07 | 河南理工大学 | Artificial intelligent integrated continuous tunneling machine for frozen rock soil |
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| CN105019912A (en) | 2015-11-04 |
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