CN107023303A - A kind of large-diameter shield machine earthing balancing safety method of reseptance - Google Patents
A kind of large-diameter shield machine earthing balancing safety method of reseptance Download PDFInfo
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- CN107023303A CN107023303A CN201710229496.3A CN201710229496A CN107023303A CN 107023303 A CN107023303 A CN 107023303A CN 201710229496 A CN201710229496 A CN 201710229496A CN 107023303 A CN107023303 A CN 107023303A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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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
The invention provides a kind of large-diameter shield machine earthing balancing safety method of reseptance, step is as follows：Determine that shield machine insertion posture, stabilization zone are closed and reinforced, pedestal is abolished and performed to stabilization zone reduction water level, received well portal, banket and pour water, shield machine driving and shield machine are received.A kind of large-diameter shield machine earthing balancing safety method of reseptance that the present invention is provided, makes shield machine be arrived safe and sound under conserve water and soil pressure balance and effective counter-force received well；In addition, being reduction construction risk, shield machine is received using the safeguard measure that method is reached in water, and the present invention has the advantages that safety, cheap, and shield machine safety can be better achieved and receives.
Description
Technical field
The invention belongs to the technical field of shield method of reseptance, specially a kind of large-diameter shield machine earthing balancing safety connects
Receiving method.
Background technology
Shield reception is last key link of shield method tunnel construction, is the emphasis and difficult point of shield-tunneling construction, and
And with certain risk.When the soft soil layer that shield tunnel water located underground enriches, remove portal when, meeting in front of portal
There is water to be poured in from portal gap in received well, also causing portal to abolish, current on the outside of period stabilization zone are suitable to go along with sb. to guard him ground-connecting-wall and element
Permeated at wall seam, there is certain construction risk.In addition, when large-diameter shield machine is appeared, having a large amount of soil bodys from portal
Place is flowed into received well, is caused outside surface subsidence, is caused above ground structure to deform.
Application No. 201010123683.1, patent name be shield receive or starting end head twin-well formula reinforcement means and
In the patent document of twin-well formula shield method of reseptance, by setting advanced well, water extraction front outside advanced well so that shield exists
Received under the geological conditions for not having water, reduce the wind that gushing water present in the regional shield reception process of water-rich sand layer emits sand
Danger.But in the case where underground water artesian head is higher, it is larger to apply advanced well dash difficulty with the technical method, cost compared with
It is high.In addition, in this method when large-diameter shield machine is appeared, the hole soil body can collapse inflow received well, cause surface subsidence.
The content of the invention
In consideration of it, the invention provides a kind of large-diameter shield machine earthing balancing safety method of reseptance, in this method, shield
Machine receives pedestal and uses mortar pedestal, carries out abolishing for portal before shield machine reaches and receives stabilization zone, and filled out in received well
Soil, pour water, shield machine is arrived safe and sound under conserve water and soil pressure balance and effective counter-force received well；In addition, being reduction construction
Risk, shield machine is received using the safeguard measure that method is reached in water, the present invention have the advantages that it is safe, cheap, can be preferably
Realize shield machine reception safely.
A kind of large-diameter shield machine earthing balancing safety method of reseptance, step is as follows：
（1）Determine shield machine insertion posture：The posture of 100 meters of adjustment shield machines, makes shield before cutter head of shield machine enters portal
The range deviation of machine central axis and Tunnel Design central axis is within ± 5cm；
（2）Stabilization zone is closed and reinforced：
1. along the reception direction of shield machine, the side for going along with sb. to guard him ground-connecting-wall in received well performs the first plain wall, and the first plain wall is U-shaped
Wall, U-shaped is within the walls the first side wall, second sidewall and the 3rd side wall, and the two ends of U-shaped wall are connected with going along with sb. to guard him ground-connecting-wall, in U-shaped wall the
Side wall and the inner surface of second sidewall are connected with the second plain wall, and the second plain wall is connected with going along with sb. to guard him ground-connecting-wall, the length of the second plain wall
Degree and width are all higher than the length and width of portal；The top surface for going along with sb. to guard him ground-connecting-wall extends to ground, and bottom surface extends to impermeable stratum
At interior 0.5 ~ 1.5m；The minimum perpendicular distance of the external diameter of shield machine to U-shaped wall the first side wall is more than or equal to 2.5m, is less than or equal to
3.5m, the minimum perpendicular distance to U-shaped wall second sidewall is more than or equal to 2.5m, less than or equal to 3.5m；The top surface of first plain wall prolongs
Ground is extended, bottom surface is extended in impermeable stratum at 0.5 ~ 1.5m；The closed area of first plain wall and the second plain wall formation is to add
Gu Qu；
2. reinforced in stabilization zone using the full hall of mixing pile；
3. to mixing pile between plain wall and mixing pile can not closely connected plain wall position reinforcement carried out by the way of high-pressure rotary jet grouting pile add
Gu；
（3）Stabilization zone reduces water level：When shield machine, which is tunneled, is more than 1m to the plain wall of distance first, dropped using the method for well-points dewatering
Water level near low portal, makes water level be down to 3 ~ 5m below shield machine；
（4）Pedestal is abolished and performed to received well portal：The portal gone along with sb. to guard him on ground-connecting-wall is abolished with pneumatic pick, then at the bottom of received well
Portion carries out placing, forms mortar pedestal, the top surface of mortar pedestal 3 ~ 5m more than the bottom surface of portal；
（5）Banket and pour water：Banketed above to mortar pedestal, the axial location of soil layer height to shield machine is smooth with digging machine
Compacting, then pours water to portal overhead height to inside received well；
（6）Shield machine is tunneled：The position of shield machine is adjusted, makes the distance of shield machine central axis and Tunnel Design central axis inclined
Difference is within ± 5cm, shield machine driving, abolishes the first plain wall；Shield machine continues to tunnel, and abolishes the second plain wall；
（7）Shield machine is received：Abolish after the second plain wall, shield machine is by portal, the grouting and reinforcing at portal, and then shield machine enters
Enter received well.
It is preferred that, in the step（1）In, the method for determining shield insertion posture is artificial mensuration, by manually surveying
Amount, the data of measurement are calculated, and level orientation, roll angle and the angle of gradient of shield machine are obtained, with reference to shield machine inner machine
The preceding mark of measuring system, rear target geometrical relationship are carried, shield head, shield tail centre coordinate are drawn, in combination with Tunnel Design center
Axis, adjusts the position of shield machine.
It is preferred that, in the step（1）In, the position consistency of shield machine central axis and Tunnel Design central axis.
It is preferred that, in the step（2）In, the distance between the first plain wall and the second plain wall axial direction are more than or equal to shield machine
The length of main frame.
It is preferred that, in the step（2）In, the top surface for going along with sb. to guard him ground-connecting-wall extends to ground, and bottom surface extends to impermeable stratum
At interior 1m.
It is preferred that, in the step（2）In, the bottom surface of the first plain wall is extended in impermeable stratum at 1m.
It is preferred that, in the step（3）In, water level is down to 4m below shield machine.
It is preferred that, in the step（4）In, the bottom surface above 4m of the top surface of mortar pedestal in portal.
Beneficial effects of the present invention：
1. by determining shield machine insertion posture, the distance relation of shield machine central axis and design tunnel central axis is specified,
And then purposeful adjustment shield machine parameter, it is ensured that what shield machine was tunneled is smoothed out.
2. shield machine reach receive carry out the abolishing of portal before stabilization zone, the placing mortar pedestal and to connecing in received well
Receive and banket, pour water in well, shield machine is arrived safe and sound in the case of the pressure balance that conserves water and soil received well.
3. by banketing, pouring water into received well, moreover it is possible to effectively prevent the hole soil body from occurring moderate finite deformation, be shield machine
Receive propulsion, pipe sheet assembling and effective twelve Earthly Branches support counter-force is provided, ground settlement when shield machine is appeared can be efficiently controlled, evade shield
Machine receives risk.
Brief description of the drawings
Fig. 1 is that shield machine receives construction process figure.
Fig. 2 is shield receiving terminal floor map.
Fig. 3 is that stabilization zone applies plain wall and foundation stabilization schematic diagram.
Fig. 4 is to abolish portal schematic diagram.
Fig. 5 is to apply mortar pedestal, backfill earthwork schematic diagram.
Fig. 6 is that shield machine reaches received well schematic diagram through stabilization zone.
In figure, 1- received wells, 2- ground, 3- shield machines, 4- stabilization zones, the plain walls of 5- first, the plain walls of 6- second, 7- goes along with sb. to guard him ground
Connect wall, 8- portals, 9- mortar pedestals, 10- soil layers, 11- the first side walls, 12- second sidewalls, the side walls of 13- the 3rd.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings, advantages of the present invention and feature will be with description and more
It is clear.But embodiment is only exemplary, does not constitute any limitation to the scope of the present invention.Those skilled in the art should manage
Solution, without departing from the spirit and scope of the invention, can modify or replace to technical scheme details,
But these modifications and replacement each fall within protection scope of the present invention.
Embodiment 1：
A kind of large-diameter shield machine earthing balancing safety method of reseptance, step is as follows：
（1）Determine the insertion posture of shield machine 3：Enter the posture of 8 preceding 100 meters of adjustment shield machines 3 of portal in the cutterhead of shield machine 3, adopt
The method manually measured, the data of measurement are calculated, and obtain level orientation, roll angle and the angle of gradient of shield machine 3, knot
Close the inner machine of shield machine 3 and carry the preceding mark of measuring system, rear target geometrical relationship, draw shield head, shield tail centre coordinate, tie simultaneously
Tunnel Design central axis is closed, the position of shield machine 3 is adjusted, makes the position of the central axis of shield machine 3 and Tunnel Design central axis
Put and be consistent；
（2）Stabilization zone 4 is closed and reinforced：
1. along the reception direction of shield machine 3, the side for going along with sb. to guard him ground-connecting-wall 7 in received well 1 performs the first plain wall 5, and the first plain wall 5 is
U-shaped wall, U-shaped is within the walls the first side wall 11, the side wall 13 of second sidewall 12 and the 3rd, and the two ends of U-shaped wall are with going along with sb. to guard him the phase of ground-connecting-wall 7
Even, the second plain wall 6 is connected with the inner surface of U-shaped wall the first side wall and second sidewall, the second plain wall 6 connects with going along with sb. to guard him ground-connecting-wall 7
Connect, the length and width of the second plain wall 6 is all higher than the length and width of portal 8；The top surface for going along with sb. to guard him ground-connecting-wall 7 extends to ground 2,
Bottom surface is extended in impermeable stratum at 1m；The external diameter of shield machine 3 to the minimum perpendicular distance of U-shaped wall the first side wall 11 is 3m, to U
The minimum perpendicular distance of shape wall second sidewall 12 is 3m；The top surface of first plain wall 5 extends to ground 2, and bottom surface extends to waterproof
In layer at 1m；The closed area of the first plain plain formation of wall 6 of wall 5 and second is stabilization zone 4；
2. reinforced in stabilization zone 4 using the full hall of mixing pile；
3. to mixing pile between plain wall and mixing pile can not closely connected plain wall position reinforcement carried out by the way of high-pressure rotary jet grouting pile add
Gu；
（3）Stabilization zone 4 reduces water level：Shield machine 3 tunnel to the plain wall 5 of distance first be more than 1m when, using the method for well-points dewatering
The water level near portal 8 is reduced, water level is down to shield machine 4m below 3；
（4）Pedestal is abolished and performed to the portal 8 of received well 1：The portal 8 gone along with sb. to guard him on ground-connecting-wall 7 is abolished with pneumatic pick, then in received well
1 bottom carries out placing, forms mortar pedestal 9, the bottom surface above 4m of the top surface of mortar pedestal 9 in portal 8；
（5）Banket and pour water：Banketed above to mortar pedestal 9, the height of soil layer 10 uses digging machine to the axial location of shield machine 3
Smooth compacting, then to pouring water inside received well 1, pours water and terminates when reaching the top surface of portal 8 to height of water level；
（6）Shield machine 3 is tunneled：The position of shield machine 3 is adjusted, the central axis of shield machine 3 is kept with Tunnel Design central axis
Unanimously, shield machine 3 is tunneled, and abolishes the first plain wall 5；Shield machine 3 continues to tunnel, and abolishes the second plain wall 6；
（7）Shield machine 3 is received：Abolish after the second plain wall 6, shield machine 3 is by portal 8, the grouting and reinforcing at portal 8, then shield
Structure machine 3 enters received well 1.
In the present embodiment, the driving of shield machine 3 abolishes the first plain wall 5, continues driving and abolishes the second plain wall 6, is keeping water
Arrive safe and sound received well 1 under earth pressure balance and effective counter-force, realizes the safety reception of shield machine 3.
Embodiment 2：
A kind of large-diameter shield machine earthing balancing safety method of reseptance, step is as follows：
（1）Determine the insertion posture of shield machine 3：Enter the posture of 8 preceding 100 meters of adjustment shield machines 3 of portal in the cutterhead of shield machine 3, adopt
The method manually measured, the data of measurement are calculated, and obtain level orientation, roll angle and the angle of gradient of shield machine 3, knot
Close the inner machine of shield machine 3 and carry the preceding mark of measuring system, rear target geometrical relationship, draw shield head, shield tail centre coordinate, tie simultaneously
Tunnel Design central axis is closed, the position of shield machine 3 is adjusted, makes the position of the central axis of shield machine 3 and Tunnel Design central axis
Put and be consistent；
（2）Stabilization zone 4 is closed and reinforced：
1. along the reception direction of shield machine 3, the side for going along with sb. to guard him ground-connecting-wall 7 in received well 1 performs the first plain wall 5, and the first plain wall 5 is
U-shaped wall, U-shaped is within the walls the first side wall 11, the side wall 13 of second sidewall 12 and the 3rd, and the two ends of U-shaped wall are with going along with sb. to guard him the phase of ground-connecting-wall 7
Even, the second plain wall 6 is connected with the inner surface of U-shaped wall the first side wall and second sidewall, the second plain wall 6 connects with going along with sb. to guard him ground-connecting-wall 7
Connect, the length and width of the second plain wall 6 is all higher than the length and width of portal 8；The top surface for going along with sb. to guard him ground-connecting-wall 7 extends to ground 2,
Bottom surface is extended in impermeable stratum at 0.5m；The minimum perpendicular distance of the external diameter of shield machine 3 to U-shaped wall the first side wall 11 is
2.5m, the minimum perpendicular distance to U-shaped wall second sidewall 12 is 2.5m；The top surface of first plain wall 5 extends to ground 2, and bottom surface is prolonged
Extend in impermeable stratum at 0.5m；The closed area of the first plain plain formation of wall 6 of wall 5 and second is stabilization zone 4；
2. reinforced in stabilization zone 4 using the full hall of mixing pile；
3. to mixing pile between plain wall and mixing pile can not closely connected plain wall position reinforcement carried out by the way of high-pressure rotary jet grouting pile add
Gu；
（3）Stabilization zone 4 reduces water level：Shield machine 3 tunnel to the plain wall 5 of distance first be more than 1m when, using the method for well-points dewatering
The water level near portal 8 is reduced, water level is down to shield machine 3m below 3；
（4）Pedestal is abolished and performed to the portal 8 of received well 1：The portal 8 gone along with sb. to guard him on ground-connecting-wall 7 is abolished with pneumatic pick, then in received well
1 bottom carries out placing, forms mortar pedestal 9, the bottom surface above 3m of the top surface of mortar pedestal 9 in portal 8；
（5）Banket and pour water：Banketed above to mortar pedestal 9, the height of soil layer 10 uses digging machine to the axial location of shield machine 3
Smooth compacting, then to pouring water inside received well 1, pours water and terminates when reaching the top surface of portal 8 to height of water level；
（6）Shield machine 3 is tunneled：The position of shield machine 3 is adjusted, the central axis of shield machine 3 is kept with Tunnel Design central axis
Unanimously, shield machine 3 is tunneled, and abolishes the first plain wall 5；Shield machine 3 continues to tunnel, and abolishes the second plain wall 6；
（7）Shield machine 3 is received：Abolish after the second plain wall 6, shield machine 3 is by portal 8, the grouting and reinforcing at portal 8, then shield
Structure machine 3 enters received well 1.
In the present embodiment, the driving of shield machine 3 abolishes the first plain wall 5, continues driving and abolishes the second plain wall 6, is keeping water
Arrive safe and sound received well 1 under earth pressure balance and effective counter-force, realizes the safety reception of shield machine 3.
Embodiment 3：
A kind of large-diameter shield machine earthing balancing safety method of reseptance, step is as follows：
（1）Determine the insertion posture of shield machine 3：Enter the posture of 8 preceding 100 meters of adjustment shield machines 3 of portal in the cutterhead of shield machine 3, adopt
The method manually measured, the data of measurement are calculated, and obtain level orientation, roll angle and the angle of gradient of shield machine 3, knot
Close the inner machine of shield machine 3 and carry the preceding mark of measuring system, rear target geometrical relationship, draw shield head, shield tail centre coordinate, tie simultaneously
Tunnel Design central axis is closed, the position of shield machine 3 is adjusted, makes the position of the central axis of shield machine 3 and Tunnel Design central axis
Put and be consistent；
（2）Stabilization zone 4 is closed and reinforced：
1. along the reception direction of shield machine 3, the side for going along with sb. to guard him ground-connecting-wall 7 in received well 1 performs the first plain wall 5, and the first plain wall 5 is
U-shaped wall, U-shaped is within the walls the first side wall 11, the side wall 13 of second sidewall 12 and the 3rd, and the two ends of U-shaped wall are with going along with sb. to guard him the phase of ground-connecting-wall 7
Even, the second plain wall 6 is connected with the inner surface of U-shaped wall the first side wall and second sidewall, the second plain wall 6 connects with going along with sb. to guard him ground-connecting-wall 7
Connect, the length and width of the second plain wall 6 is all higher than the length and width of portal 8；The top surface for going along with sb. to guard him ground-connecting-wall 7 extends to ground 2,
Bottom surface is extended in impermeable stratum at 1.5m；The minimum perpendicular distance of the external diameter of shield machine 3 to U-shaped wall the first side wall 11 is
3.5m, the minimum perpendicular distance to U-shaped wall second sidewall 12 is 3.5m；The top surface of first plain wall 5 extends to ground 2, and bottom surface is prolonged
Extend in impermeable stratum at 1.5m；The closed area of the first plain plain formation of wall 6 of wall 5 and second is stabilization zone 4；
2. reinforced in stabilization zone 4 using the full hall of mixing pile；
3. to mixing pile between plain wall and mixing pile can not closely connected plain wall position reinforcement carried out by the way of high-pressure rotary jet grouting pile add
Gu；
（3）Stabilization zone 4 reduces water level：Shield machine 3 tunnel to the plain wall 5 of distance first be more than 1m when, using the method for well-points dewatering
The water level near portal 8 is reduced, water level is down to shield machine 5m below 3；
（4）Pedestal is abolished and performed to the portal 8 of received well 1：The portal 8 gone along with sb. to guard him on ground-connecting-wall 7 is abolished with pneumatic pick, then in received well
1 bottom carries out placing, forms mortar pedestal 9, the bottom surface above 5m of the top surface of mortar pedestal 9 in portal 8；
（5）Banket and pour water：Banketed above to mortar pedestal 9, the height of soil layer 10 uses digging machine to the axial location of shield machine 3
Smooth compacting, then to pouring water inside received well 1, pours water and terminates when reaching the top surface of portal 8 to height of water level；
（6）Shield machine 3 is tunneled：The position of shield machine 3 is adjusted, the central axis of shield machine 3 is kept with Tunnel Design central axis
Unanimously, shield machine 3 is tunneled, and abolishes the first plain wall 5；Shield machine 3 continues to tunnel, and abolishes the second plain wall 6；
（7）Shield machine 3 is received：Abolish after the second plain wall 6, shield machine 3 is by portal 8, the grouting and reinforcing at portal 8, then shield
Structure machine 3 enters received well 1.
In the present embodiment, the driving of shield machine 3 abolishes the first plain wall 5, continues driving and abolishes the second plain wall 6, is keeping water
Arrive safe and sound received well 1 under earth pressure balance and effective counter-force, realizes the safety reception of shield machine 3.
Claims (8)
1. a kind of large-diameter shield machine earthing balancing safety method of reseptance, it is characterised in that step is as follows：
（1）Determine shield machine insertion posture：The posture of 100 meters of adjustment shield machines, makes shield before cutter head of shield machine enters portal
The range deviation of machine central axis and Tunnel Design central axis is within ± 5cm；
（2）Stabilization zone is closed and reinforced：
1. along the reception direction of shield machine, the side for going along with sb. to guard him ground-connecting-wall in received well performs the first plain wall, and the first plain wall is U-shaped
Wall, U-shaped is within the walls the first side wall, second sidewall and the 3rd side wall, and the two ends of U-shaped wall are connected with going along with sb. to guard him ground-connecting-wall, in U-shaped wall the
Side wall and the inner surface of second sidewall are connected with the second plain wall, and the second plain wall is connected with going along with sb. to guard him ground-connecting-wall, the length of the second plain wall
Degree and width are all higher than the length and width of portal；The top surface for going along with sb. to guard him ground-connecting-wall extends to ground, and bottom surface extends to impermeable stratum
At interior 0.5 ~ 1.5m；The minimum perpendicular distance of the external diameter of shield machine to U-shaped wall the first side wall is more than or equal to 2.5m, is less than or equal to
3.5m, the minimum perpendicular distance to U-shaped wall second sidewall is more than or equal to 2.5m, less than or equal to 3.5m；The top surface of first plain wall prolongs
Ground is extended, bottom surface is extended in impermeable stratum at 0.5 ~ 1.5m；The closed area of first plain wall and the second plain wall formation is to add
Gu Qu；
2. reinforced in stabilization zone using the full hall of mixing pile；
3. to mixing pile between plain wall and mixing pile can not closely connected plain wall position reinforcement carried out by the way of high-pressure rotary jet grouting pile add
Gu；
（3）Stabilization zone reduces water level：When shield machine, which is tunneled, is more than 1m to the plain wall of distance first, dropped using the method for well-points dewatering
Water level near low portal, makes water level be down to 3 ~ 5m below shield machine；
（4）Pedestal is abolished and performed to received well portal：The portal gone along with sb. to guard him on ground-connecting-wall is abolished with pneumatic pick, then at the bottom of received well
Portion carries out placing, forms mortar pedestal, the top surface of mortar pedestal 3 ~ 5m more than the bottom surface of portal；
（5）Banket and pour water：Banketed above to mortar pedestal, the axial location of soil layer height to shield machine is smooth with digging machine
Compacting, then pours water to portal overhead height to inside received well；
（6）Shield machine is tunneled：The position of shield machine is adjusted, makes the distance of shield machine central axis and Tunnel Design central axis inclined
Difference is within ± 5cm, shield machine driving, abolishes the first plain wall；Shield machine continues to tunnel, and abolishes the second plain wall；
（7）Shield machine is received：Abolish after the second plain wall, shield machine is by portal, the grouting and reinforcing at portal, and then shield machine enters
Enter received well.
2. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（1）In, the method for determining shield insertion posture is artificial mensuration, by manual measurement, the data of measurement is calculated, obtained
Shield machine level orientation, roll angle and the angle of gradient, carry the preceding mark of measuring system, rear target with reference to shield machine inner machine several
What relation, draws shield head, shield tail centre coordinate, in combination with Tunnel Design central axis, adjusts the position of shield machine.
3. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（1）In, the position consistency of shield machine central axis and Tunnel Design central axis.
4. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（2）In, the distance between the first plain wall and the second plain wall axial direction are more than or equal to the length of shield machine host.
5. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（2）In, the top surface for going along with sb. to guard him ground-connecting-wall extends to ground, and bottom surface is extended in impermeable stratum at 1m.
6. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（2）In, the bottom surface of the first plain wall is extended in impermeable stratum at 1m.
7. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（3）In, water level is down to 4m below shield machine.
8. large-diameter shield machine earthing balancing safety method of reseptance as claimed in claim 1, it is characterised in that in the step
（4）In, the bottom surface above 4m of the top surface of mortar pedestal in portal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229496.3A CN107023303A (en) | 2017-04-10 | 2017-04-10 | A kind of large-diameter shield machine earthing balancing safety method of reseptance |
| PCT/CN2018/082161 WO2018188529A1 (en) | 2017-04-10 | 2018-04-08 | Covering earth balancing and safe receiving method for large-diameter tunnel boring machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710229496.3A CN107023303A (en) | 2017-04-10 | 2017-04-10 | A kind of large-diameter shield machine earthing balancing safety method of reseptance |
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| Publication Number | Publication Date |
|---|---|
| CN107023303A true CN107023303A (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710229496.3A Pending CN107023303A (en) | 2017-04-10 | 2017-04-10 | A kind of large-diameter shield machine earthing balancing safety method of reseptance |
Country Status (2)
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| CN (1) | CN107023303A (en) |
| WO (1) | WO2018188529A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018188529A1 (en) * | 2017-04-10 | 2018-10-18 | 中铁十四局集团有限公司 | Covering earth balancing and safe receiving method for large-diameter tunnel boring machine |
| CN113123800A (en) * | 2021-05-14 | 2021-07-16 | 中铁十四局集团大盾构工程有限公司 | Construction method of starting base of large-diameter shield tunnel steel structure |
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| CN113123800A (en) * | 2021-05-14 | 2021-07-16 | 中铁十四局集团大盾构工程有限公司 | Construction method of starting base of large-diameter shield tunnel steel structure |
| CN113123800B (en) * | 2021-05-14 | 2022-04-15 | 中铁十四局集团大盾构工程有限公司 | Construction method of starting base of large-diameter shield tunnel steel structure |
Also Published As
| Publication number | Publication date |
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| WO2018188529A1 (en) | 2018-10-18 |
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