CN106640101B - Method for repairing and constructing is worn in shield cutter tunnel - Google Patents
Method for repairing and constructing is worn in shield cutter tunnel Download PDFInfo
- Publication number
- CN106640101B CN106640101B CN201611173113.7A CN201611173113A CN106640101B CN 106640101 B CN106640101 B CN 106640101B CN 201611173113 A CN201611173113 A CN 201611173113A CN 106640101 B CN106640101 B CN 106640101B
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- tool apron
- abrasion
- cutterhead
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005299 abrasion Methods 0.000 claims abstract description 71
- 238000003466 welding Methods 0.000 claims abstract description 54
- 230000008439 repair process Effects 0.000 claims abstract description 50
- 239000011435 rock Substances 0.000 claims abstract description 16
- 230000005641 tunneling Effects 0.000 claims abstract description 16
- 239000002131 composite material Substances 0.000 claims description 86
- 229910000831 Steel Inorganic materials 0.000 claims description 82
- 239000010959 steel Substances 0.000 claims description 82
- 238000012423 maintenance Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 12
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000005498 polishing Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 239000002689 soil Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 239000011120 plywood Substances 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 238000003756 stirring Methods 0.000 description 4
- 230000001737 promoting effect Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- UFGZSIPAQKLCGR-UHFFFAOYSA-N chromium carbide Chemical compound [Cr]#C[Cr]C#[Cr] UFGZSIPAQKLCGR-UHFFFAOYSA-N 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910003470 tongbaite Inorganic materials 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- 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 discloses wear method for repairing and constructing, including step in a kind of shield cutter tunnel：One, cutterhead repair space in tunnel is dug；Two, the abrasion of cutterhead outer rim is repaired in tunnel：201, outer rim big ring abrasion is repaired, 202, the abrasion of notch ring repair, 203, folded plate abrasion in inclined-plane repairs；Three, cutter head panel abrasion is repaired in tunnel：301, big scraper tool apron abrasion is repaired, 302, the small scraper tool apron abrasion in outer ring repair, 303, the abrasion of hobboing cutter girff weld seam repairs.It is of the invention novel in design, using at tunneling boring hard rock position face it is firm, cutterhead abrasion in tunnel is carried out to repair, ground is avoided to drive a well, it is cost-effective, while using scraper tool apron covering welding procedure that is prefabricated and being designed with positioning through hole, location difficulty when avoiding installing original heavy scraper tool apron, saved cost, shortened the duration, make in small space replace scraper tool apron facilitate it is feasible.
Description
Technical field
The invention belongs to shield cutter recovery technique fields, and in particular to repairing construction is worn in a kind of shield cutter tunnel
Method.
Background technology
Shield machine is chiefly used in construction of underground tunnel, and it is compound stratum that tunnel geology is complicated and most in the construction process, i.e.,
Tunneling boring soft rock, upper soft lower hard, tunneling boring hard rock are alternately present, the knife in tunneling process as one of shield machine critical component
Excavation stratum is folded, face is supported, stirs the effect of dregs, operating condition is extremely severe, and stress is complicated, is shield machine
The critical piece of Inspection and maintenance, can the quality of cutterhead will directly affect shield-tunneling construction be smoothed out.Surface Buildings are covered
Rate is high, and the upper-soft lower-hard ground in mostly old foundation-free cob brick room, and Surface Buildings settle in compound stratum in order to control, take
The boring mode for high pressure of buying securities with all one's capital can make shield machine be chronically at high thrust in this way, large torque, under the bad working environments of partial load, knife
Disk outer rim serious wear need to repair cutter head of shield machine in time, and existing cutter head of shield machine reparation mostly uses ground and digs a well
Mode cutter head of shield machine is repaired, construction cost is high, and complex process seriously affects the duration；In addition, existing more tool changing
Tool tool apron mostly uses conventional replacement, and narrow space in tunnel, cutter tool apron is heavy, and it is inconvenient to replace, and is brought not to construction
Necessary trouble, seriously affects the duration.
Invention content
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of shield cutter
Method for repairing and constructing is worn in tunnel, using at tunneling boring hard rock position face it is firm, carry out cutterhead abrasion in tunnel and repair
It is multiple, avoid ground from driving a well, it is cost-effective, while scraper tool apron covering welding procedure that is prefabricated and being designed with positioning through hole is used,
Location difficulty when avoiding installing original heavy scraper tool apron, has saved cost, has shortened the duration, made to replace in small space
Scraper tool apron facilitate it is feasible, convenient for promoting the use of.
In order to solve the above technical problems, the technical solution adopted by the present invention is：Repairing construction is worn in shield cutter tunnel
Method, it is characterised in that this approach includes the following steps：
Step 1: digging cutterhead repair space in tunnel：Shield machine tunnels, utilization out of service to tunneling boring hard rock
Face is firm at tunneling boring hard rock position, artificial to dig cutterhead repair space；
Cutterhead repair space is the depth 1m and the 0.5m at the top of shield shell positioned at cutterhead twelve-hour direction
Solid space；
Step 2: the abrasion of cutterhead outer rim is repaired in tunnel, process is as follows：
The big ring abrasion of step 201, outer rim is repaired：First, maintenance personal is located in cutterhead repair space to mill
It damages one week big ring steel plate reinforcement of continuous welding outer rim on the outside of the big ring of outer rim and wears the big ring of outer rim, wherein the reality of the abrasion big ring of outer rim
Border height is L1, the big ring steel plate height L of outer rim2Meet L2=L-L1- e, L are the height of the big ring of the original parent of cutterhead outer rim, and e is
Wear the welding and assembling height between the big ring of outer rim and the big ring steel plate of outer rim；Then, maintenance personal is between the big ring steel plate of two outer rims
The big girth joint of outer rim on weld wear-resistant composite board, a big boxing of outer rim is spaced between adjacent two wear-resistant composite boards
Seam；
Step 202, the abrasion of notch ring are repaired, and process is as follows：
Step a, jig is set up：In shield machine soil storehouse, the first half sets up jig, and the jig avoids knife
Disk stirring rod, maintenance personal are located at the jig in native storehouse and repair the abrasion of notch ring；
Step b, Tu Cang divulges information：Air blower is used to divulge information for Tu Cang, by air blower setting in ten two points of people's lock door
It dries to people's lock nine o'clock of door direction at the position of clock direction, forms cross-ventilation and divulge information to Tu Cang；
Step c, the reinforcing of notch ring steel plate is worn：Maintenance personal is located on the jig in native storehouse to wearing notch ring
One week continuous welding notch ring steel plate reinforcement wears notch ring steel plate on the outside of steel plate, wherein the abrasion side of abrasion notch ring steel plate
Edge actual height is H1, notch ring steel plate height is H2；
The abrasion notch ring steel plate after the original worn out N of parent notch ring of cutterhead by forming, wherein N is positive integer and N
More than or equal to two；
Step d, the welding of notch ring composite plate：Maintenance personal welds on the notch girth joint between two notch ring steel plates
Notch ring composite plate is connect, the notch ring composite plate includes the first notch ring composite plate and the second notch ring composite plate, and first cuts
Choma composite plate and the second notch ring composite plate are alternately welded on each notch girth joint, the first notch ring composite plate and second
The height H of notch ring composite plate3Meet H3≥H-H1-H2, H is the height of the original parent notch ring of cutterhead；
Step 203, the abrasion of inclined-plane folded plate are repaired：Maintenance personal is located in cutterhead repair space to be rolled over using inclined-plane
Plate composite plate repairs the inclined-plane folded plate being arranged on the outside of hobboing cutter girff, and inclined-plane folded plate composite plate is welded and welded in oblique angle
Height is H4；
Step 3: cutter head panel abrasion is repaired in tunnel, process is as follows：
Step 301, the abrasion of big scraper tool apron are repaired：First, prefabricated identical with original big scraper tool apron structure newly to scrape greatly
The thickness of knife tool apron and new big scraper tool apron is S1, the tapped through hole and original big scraper knife that are arranged on the new big scraper tool apron
Tapped through hole quantity and position on seat correspond to；Then, chamfering is carried out to the welding surface surrounding of the new big scraper tool apron steel plate；
Finally, the new big scraper tool apron correspondence is welded on original big scraper tool apron in cutterhead repair space, and right
The new big space hanging between scraper tool apron and original big scraper tool apron carries out adding the support of triangle gusset；
Step 302, the small scraper tool apron abrasion in outer ring are repaired：First, prefabricated identical as the small scraper tool apron structure in original outer ring
The small scraper tool apron of the small scraper tool apron in new outer ring and new outer ring thickness be S2, the spiral shell that is arranged on the new small scraper tool apron in outer ring
Line through-hole on the small scraper tool apron in original outer ring tapped through hole quantity and position it is corresponding；Then, to the new small scraper in outer ring
The welding surface surrounding of tool apron steel plate carries out chamfering；Finally, in cutterhead repair space by the new small scraper knife in outer ring
Seat correspondence is welded on the small scraper tool apron in original outer ring；
Step 303, the abrasion of hobboing cutter girff weld seam are repaired：First, maintenance personal is located in cutterhead repair space
Preceding mounting surface and rear mounting surface where hobboing cutter girff are welded with cutterhead parent；Then, hobboing cutter girff surrounding welding with
The steel bar of hobboing cutter girff perimeter equal length.
Method for repairing and constructing is worn in above-mentioned shield cutter tunnel, it is characterised in that：Wear-resistant composite board is in step 201
Bimetal composite wear resistant plate, the bimetal composite wear resistant plate be welded on by the way of arc welding the big ring steel plate of two outer rims it
Between the big girth joint of outer rim on.
Method for repairing and constructing is worn in above-mentioned shield cutter tunnel, it is characterised in that：Inclined-plane folded plate is compound in step 203
The quantity of plate is even number, and the inclined-plane folded plate composite plate laid in pairs is separately positioned on the both ends of inclined-plane folded plate.
Method for repairing and constructing is worn in above-mentioned shield cutter tunnel, it is characterised in that：It is repaiied in the cutterhead in step 301
Multiple working space needs before the new big scraper tool apron correspondence is welded on original big scraper tool apron to original big scraper tool apron
Carry out polishing cleaning；The new small scraper tool apron correspondence in outer ring is welded in cutterhead repair space in step 302
It needs to carry out polishing cleaning to the small scraper tool apron in original outer ring before on original small scraper tool apron in outer ring.
Compared with the prior art, the present invention has the following advantages：
1, the present invention finds the tunneling boring hard rock in tunnel using shield machine driving, and tunneling boring hard rock geologic structure is firm,
Prerequisite is provided for cutterhead reparation in tunnel, cutterhead repair space can be dug in tunneling boring hard rock, ground is avoided to drive a well
And single reparation cutterhead abrasion, it saves to excavate and fills up cost, convenient for promoting the use of.
2, the present invention carries out the abrasion reparation of cutterhead outer rim in tunnel, and the big ring steel plate of outer rim is used on the abrasion big ring of outer rim
The big ring of the original parent of cutterhead outer rim is replaced with the mode that wear-resistant composite board combines；The native storehouse first half of shield machine is set up in tunnel
Jig, jig of the maintenance personal in native storehouse repair the abrasion of notch ring, use and cut on abrasion notch ring steel plate
The mode that choma steel plate and notch ring composite plate combine replaces the original parent notch ring of cutterhead, wearability enhancing.
3, the present invention carries out cutter head panel abrasion in tunnel and repairs, using prefabricated and be designed with the tool apron of positioning through hole and cover
Lid welding procedure, increases the wear-resisting row and stability of original cutter head panel, and effect is good.
In conclusion the present invention is novel in design rationally, firm, the progress tunnel of face at tunneling boring hard rock position is utilized
Interior cutterhead abrasion is repaired, and ground is avoided to drive a well, cost-effective, while being covered using scraper tool apron that is prefabricated and being designed with positioning through hole
Lid welding procedure, location difficulty when avoiding installing original heavy scraper tool apron, has saved cost, has shortened the duration, made narrow
Replacement scraper tool apron facilitates feasible in small space, convenient for promoting the use of.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Description of the drawings
Fig. 1 is that cutterhead outer rim of the present invention wears pre-structure schematic diagram.
Fig. 2 is the structural schematic diagram after cutterhead outer rim of the present invention abrasion.
Fig. 3 is that Fig. 2 welds the structural schematic diagram after the big ring steel plate of outer rim.
Fig. 4 is the vertical view of the big ring steel plate welding of Fig. 3 outer rims.
Fig. 5 is that Fig. 3 welds the structural schematic diagram after wear-resistant composite board.
Fig. 6 is the vertical view of Fig. 5 wear-resistant composite boards and the big ring steel plate welding of outer rim.
Fig. 7 is that Fig. 5 welds the structural schematic diagram after notch ring steel plate.
Fig. 8 is design sketch after the welding of Fig. 7 notch ring steel plates.
Fig. 9 is that Fig. 7 welds the structural schematic diagram after notch ring composite plate.
Figure 10 is that Fig. 9 notch ring steel plates weld aftereffect fruit figure with notch ring composite plate.
Figure 11 is that Fig. 9 welds the structural schematic diagram after inclined-plane folded plate composite plate.
Figure 12 is that the inclined-planes Figure 11 folded plate welds aftereffect fruit figure with inclined-plane folded plate composite plate.
Figure 13 is the method flow block diagram that method for repairing and constructing is worn in shield cutter tunnel of the present invention.Reference numeral is said
It is bright:
1-shield shell；2-inclined-plane folded plates；3-abrasion notch ring steel plates；
4-abrasion big the rings of outer rim；5-arc wearing plates；The big ring steel plate of 6-outer rims；
7-wear-resistant composite boards；8-notch ring steel plates；9-the first notch ring composite plate；
10-the second notch ring composite plate；11-inclined-plane folded plate composite plates；
13-hobboing cutter girffs；The big ring of the original parent of 14-cutterhead outer rim；
The original parent notch ring of 15-cutterheads.
Specific implementation mode
As shown in figure 1 to figure 13, method for repairing and constructing is worn in shield cutter tunnel of the present invention, is included the following steps：
Step 1: digging cutterhead repair space in tunnel：Shield machine tunnels, utilization out of service to tunneling boring hard rock
Face is firm at tunneling boring hard rock position, artificial to dig cutterhead repair space；
Cutterhead repair space is the depth 1m positioned at cutterhead twelve-hour direction and apart from 1 top 0.5m of shield shell
Solid space；
In practice of construction, shield machine enters tunneling boring hard rock, stablizes feature using tunneling boring hard rock face, carries out tunnel
The abrasion of interior cutterhead is repaired, and is avoided ground from driving a well and single reparation cutterhead abrasion, is saved to excavate and fill up cost.
Step 2: the abrasion of cutterhead outer rim is repaired in tunnel, process is as follows：
As shown in Figures 3 to 6, the big ring abrasion of step 201, outer rim is repaired：First, maintenance personal is located at the cutterhead reparation
4 outside of the big ring of abrasion outer rim, one week big ring steel plate 6 of continuous welding outer rim is reinforced in working space and wears the big ring of outer rim 4, wherein
The actual height for wearing the big ring of outer rim 4 is L1, the big 6 height L of ring steel plate of outer rim2Meet L2=L-L1- e, L are that cutterhead outer rim is original
The height of the big ring of parent 14, e are the welding and assembling height worn between the big ring 4 of outer rim and the big ring steel plate of outer rim 6；Then, maintenance personal
Wear-resistant composite board 7, adjacent two wear-resistant composite boards 7 are welded on the big girth joint of outer rim between the big ring steel plate of two outer rims 6
Between be spaced a big girth joint of outer rim；
In the present embodiment, wear-resistant composite board 7 is bimetal composite wear resistant plate, the bimetal composite wear resistant in step 201
Plate is welded on by the way of arc welding on the big girth joint of outer rim between the big ring steel plate of two outer rims 6.
In actual welding, the bimetal composite wear resistant plate uses chromium carbide alloy content for the complex abrasion-proof of 20-30%
Plate, the abrasion-proof composite plate that chromium carbide alloy content is 20-30% are suitable for wearing extremely serious environment.
As shown in Figures 1 to 6, it in actual use, repairs height summation principle and must not exceed former cutterhead appearance and size, cutterhead
The big ring of the original parent of outer rim 14 is the outermost of cutterhead radial direction, and the spoke of cutterhead and panel are cascaded, and abrasion outer rim is big
The overall structure that ring 4 is formed after being welded with the big ring steel plate 6 of outer rim is instead of the big ring 14 of the original parent of cutterhead outer rim and height and cutterhead
The big ring 14 of the original parent of outer rim is equal, be provided on the big ring of the original parent of cutterhead outer rim 14 12 gauge knives for ensure excavate and break
The diameter in face, the both sides of gauge knife are both provided with the arc wearing plate 5 of protection gauge knife on the big ring 14 of the original parent of cutterhead outer rim,
Welding wear-resistant composite board 7 is to replace 12 gauge knife and arc wearing plate 5 are ensured have while the diameter of excavated section
Wear-resisting effect, wear-resistant composite board 7 is welded on the big girth joint of outer rim between the big ring steel plate of two outer rims 6 and adjacent two resistance to
A big girth joint of outer rim is spaced between mill composite plate 7, therefore the welding quantity of wear-resistant composite board 7 is the big ring steel plate of outer rim
6 half.
When actual welding, big 4 outside of ring of abrasion outer rim, phase are laid on using the big ring steel plate of the identical outer rim of structure 6 successively
The big girth joint width of outer rim is not less than 1.5cm between the adjacent big ring steel plate 6 of two outer rims, the welding of the big ring steel plate of each outer rim 6
Face need to reserve the welding groove of 1cm.
In the present embodiment, the height L of the big ring of the original parent of cutterhead outer rim 14 is 8cm, the actual height of the big ring of abrasion outer rim 4
L1For 5cm, therefore big 6 size of ring steel plate of outer rim uses the repair welding steel plate of 20cm × 17cm × 2.5cm, wear-resistant composite board 7 to use
The composite plate of 20cm × 14cm × 3cm, the spacing between two wear-resistant composite boards 7 are 20cm, and the big ring 4 of abrasion outer rim and outer rim are big
Welding and assembling height e between ring steel plate 6 is 0.5cm.
Step 202, the abrasion of notch ring are repaired, and process is as follows：
Step a, jig is set up：In shield machine soil storehouse, the first half sets up jig, and the jig avoids knife
Disk stirring rod, maintenance personal are located at the jig in native storehouse and repair the abrasion of notch ring；
In actual use, the jig is avoided in cutterhead stirring rod to ensure that cutterhead normally rotates.
Step b, Tu Cang divulges information：Air blower is used to divulge information for Tu Cang, by air blower setting in ten two points of people's lock door
It dries to people's lock nine o'clock of door direction at the position of clock direction, forms cross-ventilation and divulge information to Tu Cang；
In the present embodiment, the abrasion of notch ring is repaired based on welding, narrow space in native storehouse, closed, due to welding procedure
It constructs in people's lock door twelve-hour direction, so ventilation uses one using people's lock door in twelve-hour direction as air inlet
The air blower of platform 3.7KW to people's lock nine o'clock of door direction dry, people's lock nine o'clock of door direction be exhaust outlet.
As shown in Figure 7 to 10, the reinforcing of notch ring steel plate step c, is worn：The welding that maintenance personal is located in native storehouse is flat
Abrasion notch ring steel plate 3 is reinforced to 3 outside of abrasion notch ring steel plate, one week continuous welding notch ring steel plate 8 on platform, wherein abrasion
The frayed edges actual height of notch ring steel plate 3 is H1, 8 height of notch ring steel plate is H2；
The abrasion notch ring steel plate 3 after the original 15 worn out N of parent notch ring of cutterhead by forming, wherein N is positive integer
And N is more than or equal to two；
Step d, the welding of notch ring composite plate：Maintenance personal is on the notch girth joint between two notch ring steel plates 8
Notch ring composite plate is welded, the notch ring composite plate includes the first notch ring composite plate 9 and the second notch ring composite plate 10, the
All choma composite plates 9 and the second notch ring composite plate 10 are alternately welded on each notch girth joint, and the first notch ring is compound
The height H of plate 9 and the second notch ring composite plate 103Meet H3≥H-H1-H2, H is the height of the original parent notch ring of cutterhead 15；
In actual use, the original parent notch ring 15 of cutterhead is located at after cutterhead outer rim at vertebral plate, is equipped with the wear-resisting grid of welding
Protection, the spoke of cutterhead and panel are cascaded, and abrasion notch ring steel plate 3, notch ring steel plate 8 and the notch ring are compound
The overall structure formed after plate welding replaces the original parent notch ring 15 of cutterhead and height is not less than the original parent notch ring of cutterhead
15 height simultaneously no more than notch ring at a distance from 1 inner wall of shield shell there is wear-resisting effect, the first notch ring composite plate 9 to be welded on
An institute is spaced on notch girth joint between two notch ring steel plates 8 and between two adjacent the first notch ring composite plates 9
Notch girth joint is stated, one the second notch ring of welding is multiple on the notch girth joint between two the first notch ring composite plates 9
Plywood 10, therefore the first notch ring composite plate 9 is equal with the welding quantity of the second notch ring composite plate 10.
It is compound using the identical first notch ring composite plate 9 of structure the second notch ring identical with structure when actual welding
Plate 10, the first notch ring composite plate 9 and the second notch ring composite plate 10 are alternately welded on 8 outside of notch ring steel plate, and cutterhead is original
The height L of parent notch ring 15 is 8cm, the frayed edges actual height H of abrasion notch ring steel plate 31For 2cm, cut due to wearing
Choma steel plate 3 wears not the advising in recess of notch ring steel plate 3 by being formed after the original 15 worn out N of parent notch ring of cutterhead
Then shape, 3 most thin height value of abrasion notch ring steel plate is 0, first uses size for 36cm × 20cm × 2.5cm notch rings steel plate 8
Reinforcing notch ring, use size for the first notch ring composite plate 9 and size of 30cm × 15cm × 4.5cm be 20cm ×
The second notch ring composite plate 10 of 15cm × 4.5cm is alternately welded on 8 outside of notch ring steel plate and 9 He of the first notch ring composite plate
Second notch ring composite plate, 10 spacing 5cm.
As is illustrated by figs. 11 and 12, step 203, the abrasion of inclined-plane folded plate are repaired：Maintenance personal is located at the cutterhead and repairs work
Make to repair in the inclined-plane folded plate in 13 outside of hobboing cutter girff to being arranged using inclined-plane folded plate composite plate 11 in space, inclined-plane folded plate
Composite plate 11 is welded in oblique angle and welding and assembling height is H4；
In practice of construction, inclined-plane folded plate 2 is located at the outermost both ends of cutter head panel, in "<”“>" shape, there is dregs water conservancy diversion,
The effect of hobboing cutter knife hub, girff and big scraper, the inclined both ends for being welded on inclined-plane folded plate 2 of inclined-plane folded plate composite plate 11 is protected to use
In protecting hobboing cutter girff 13 not frayed, the size of inclined-plane folded plate composite plate 11 is 30cm × 15cm × 4.5cm.
In the present embodiment, the quantity of inclined-plane folded plate composite plate 11 is even number, the inclined-plane folded plate laid in pairs in step 203
Composite plate 11 is separately positioned on the both ends of inclined-plane folded plate 2.
Step 3: cutter head panel abrasion is repaired in tunnel, process is as follows：
Step 301, the abrasion of big scraper tool apron are repaired：First, prefabricated identical with original big scraper tool apron structure newly to scrape greatly
The thickness of knife tool apron and new big scraper tool apron is S1, the tapped through hole and original big scraper knife that are arranged on the new big scraper tool apron
Tapped through hole quantity and position on seat correspond to；Then, chamfering is carried out to the welding surface surrounding of the new big scraper tool apron steel plate；
Finally, the new big scraper tool apron correspondence is welded on original big scraper tool apron in cutterhead repair space, and right
The new big space hanging between scraper tool apron and original big scraper tool apron carries out adding the support of triangle gusset；
In practice of construction, cutterhead outer rim is original more big scraper, in every M24*65 for being 12.9 grades by grade big scraper
Six point cylindrical head bolt is mounted on original big scraper tool apron, is had and is scraped slag, corrects digging diameter, protection hobboing cutter knife hub, girff
Effect, former big scraper tool apron install in factory and former big scraper tool apron is to inlay to be welded to cutterhead outer rim, if replacement is original
Big scraper tool apron needs first to be excluded, then cleaning polishing mounting surface, but original big scraper tool apron size is big, weight weight,
It has no idea to install at all in so narrow cutterhead repair space, it is even more impossible to be accurately positioned, in the present embodiment,
New big scraper tool apron uses mode prefabricated in advance and its thickness is S1For 5cm, the welding to the new big scraper tool apron steel plate
Face surrounding carries out 1cm chamferings, increases weld strength, will be set on the new big scraper tool apron in cutterhead repair space
The tapped through hole set is corresponding with the tapped through hole on original big scraper tool apron, facilitates positioning, to the new big scraper tool apron and original
There is between big scraper tool apron hanging space carry out adding the support of triangle gusset convenient for increasing the stability for installing big scraper, save at
This, shortens the construction period, make to replace in small space big scraper tool apron facilitate it is feasible.
Step 302, the small scraper tool apron abrasion in outer ring are repaired：First, prefabricated identical as the small scraper tool apron structure in original outer ring
The small scraper tool apron of the small scraper tool apron in new outer ring and new outer ring thickness be S2, the spiral shell that is arranged on the new small scraper tool apron in outer ring
Line through-hole on the small scraper tool apron in original outer ring tapped through hole quantity and position it is corresponding；Then, to the new small scraper in outer ring
The welding surface surrounding of tool apron steel plate carries out chamfering；Finally, in cutterhead repair space by the new small scraper knife in outer ring
Seat correspondence is welded on the small scraper tool apron in original outer ring；
In practice of construction, cutterhead outer rim it is original it is more small scraper and it is each be located at spoke both sides, it is every small scraper by grade
It is mounted on the small scraper tool apron in original outer ring for six point cylindrical head bolt in 12.9 grades of M24*50, has and scrape slag, protection hobboing cutter
The effect of knife hub, girff, since cutterhead outer ring is more much larger than inner ring linear velocity, so the small scraper in original outer ring is smaller than original inner ring
Blade wears rate is fast, and original small scraper tool apron in outer ring is to inlay to be welded to spoke both sides, if replacing the small scraper in original outer ring
Tool apron needs first to be excluded, then cleaning polishing mounting surface, but the scene cutterhead repair narrow space, installation
Location difficulty, in the present embodiment, the new small scraper tool apron in outer ring uses mode prefabricated in advance and its thickness is S2For 3cm, to institute
The welding surface surrounding for stating the small scraper tool apron steel plate in new outer ring carries out 1cm chamferings, increases weld strength, in the cutterhead repair
It is in space that the tapped through hole being arranged on the new big scraper tool apron is corresponding with the tapped through hole on original big scraper tool apron, it is convenient
Positioning, it is cost-effective, shorten the construction period, make in small space replace the small scraper tool apron in outer ring facilitate it is feasible.
Step 303, the abrasion of hobboing cutter girff weld seam are repaired：First, maintenance personal is located in cutterhead repair space
Preceding mounting surface and rear mounting surface where hobboing cutter girff are welded with cutterhead parent；Then, hobboing cutter girff surrounding welding with
The steel bar of hobboing cutter girff perimeter equal length.
In practice of construction, hobboing cutter girff weld seam is cleared up, original hobboing cutter girff weld seam is filled up and cutterhead mother again
Body is welded as a whole, and is to protect hobboing cutter knife in the steel bar of the welding of hobboing cutter girff surrounding and hobboing cutter girff perimeter equal length
Case weld seam is no longer worn.
In the present embodiment, the new big scraper tool apron is corresponded into welding in cutterhead repair space in step 301
It needs to carry out polishing cleaning to original big scraper tool apron before on original big scraper tool apron；In the cutterhead reparation in step 302
Working space needs before the new small scraper tool apron correspondence in outer ring is welded on the small scraper tool apron in original outer ring to original outer ring
Small scraper tool apron carries out polishing cleaning.
The above is only presently preferred embodiments of the present invention, is not imposed any restrictions to the present invention, every according to the present invention
Technical spirit changes any simple modification, change and equivalent structure made by above example, still falls within skill of the present invention
In the protection domain of art scheme.
Claims (4)
1. wearing method for repairing and constructing in shield cutter tunnel, it is characterised in that this approach includes the following steps：
Step 1: digging cutterhead repair space in tunnel：Shield machine tunnel it is out of service to tunneling boring hard rock, using complete disconnected
Face is firm at the hard rock position of face, artificial to dig cutterhead repair space；
Cutterhead repair space is the depth 1m positioned at cutterhead twelve-hour direction and apart from 0.5m at the top of shield shell (1)
Solid space；
Step 2: the abrasion of cutterhead outer rim is repaired in tunnel, process is as follows：
The big ring abrasion of step 201, outer rim is repaired：First, maintenance personal is located in cutterhead repair space outer to wearing
One week big ring steel plate (6) of continuous welding outer rim reinforces the abrasion big ring of outer rim (4) on the outside of the big ring of edge (4), wherein the abrasion big ring of outer rim
(4) actual height is L1, big ring steel plate (6) the height L of outer rim2Meet L2=L-L1- e, L are the big ring of the original parent of cutterhead outer rim
(14) height, e are the welding and assembling height worn between the big ring of outer rim (4) and the big ring steel plate (6) of outer rim；Then, maintenance personal exists
Wear-resistant composite board (7), adjacent two wear-resistant composite boards are welded on the big girth joint of outer rim between the big ring steel plate (6) of two outer rims
(7) a big girth joint of outer rim is spaced between；
Step 202, the abrasion of notch ring are repaired, and process is as follows：
Step a, jig is set up：In shield machine soil storehouse, the first half sets up jig, and the jig is avoided cutterhead and stirred
Stick is mixed, maintenance personal is located at the jig in native storehouse and repairs the abrasion of notch ring；
Step b, Tu Cang divulges information：It uses air blower to divulge information for Tu Cang, the air blower is arranged in people's lock door twelve-hour side
It dries to people's lock nine o'clock of door direction to position, forms cross-ventilation and divulge information to Tu Cang；
Step c, the reinforcing of notch ring steel plate is worn：Maintenance personal is located on the jig in native storehouse to wearing notch ring steel plate
(3) the one week continuous welding notch ring steel plate (8) in outside reinforces abrasion notch ring steel plate (3), wherein abrasion notch ring steel plate (3)
Frayed edges actual height be H1, notch ring steel plate (8) is highly H2；
The abrasion notch ring steel plate (3) after the worn out N of the original parent notch ring (15) of cutterhead by forming, wherein N is positive integer
And N is more than or equal to two；
Step d, the welding of notch ring composite plate：Maintenance personal welds on the notch girth joint between two notch ring steel plates (8)
Notch ring composite plate is connect, the notch ring composite plate includes the first notch ring composite plate (9) and the second notch ring composite plate (10),
First notch ring composite plate (9) and the second notch ring composite plate (10) are alternately welded on each notch girth joint, the first notch
The height H of ring composite plate (9) and the second notch ring composite plate (10)3Meet H3≥H-H1-H2, H is the original parent notch ring of cutterhead
(15) height；
Step 203, the abrasion of inclined-plane folded plate are repaired：Maintenance personal is located in cutterhead repair space multiple using inclined-plane folded plate
Plywood (11) repairs the inclined-plane folded plate being arranged on the outside of hobboing cutter girff (13), and inclined-plane folded plate composite plate (11) is in bevel welding
It connects and welding and assembling height is H4；
Step 3: cutter head panel abrasion is repaired in tunnel, process is as follows：
Step 301, the abrasion of big scraper tool apron are repaired：First, prefabricated new big scraper knife identical with original big scraper tool apron structure
The thickness of seat and new big scraper tool apron is S1, the tapped through hole that is arranged on the new big scraper tool apron on original big scraper tool apron
Tapped through hole quantity and position correspond to；Then, chamfering is carried out to the welding surface surrounding of the new big scraper tool apron steel plate；Most
Afterwards, the new big scraper tool apron correspondence is welded on original big scraper tool apron in cutterhead repair space, and to institute
New big space hanging between scraper tool apron and original big scraper tool apron is stated to carry out adding the support of triangle gusset；
Step 302, the small scraper tool apron abrasion in outer ring are repaired：First, prefabricated identical with the small scraper tool apron structure in original outer ring new
The thickness of the small scraper tool apron of the small scraper tool apron in outer ring and new outer ring is S2, the screw thread being arranged on the new small scraper tool apron in outer ring is logical
Hole on the small scraper tool apron in original outer ring tapped through hole quantity and position it is corresponding；Then, to the new small scraper tool apron in outer ring
The welding surface surrounding of steel plate carries out chamfering；Finally, in cutterhead repair space by the new small scraper tool apron pair in outer ring
It should be welded on the small scraper tool apron in original outer ring；
Step 303, the abrasion of hobboing cutter girff weld seam are repaired：First, maintenance personal, which will be located in cutterhead repair space, to roll
Preceding mounting surface and rear mounting surface are welded with cutterhead parent where knife girff；Then, in the welding of hobboing cutter girff surrounding and hobboing cutter
The steel bar of girff perimeter equal length.
2. wearing method for repairing and constructing in shield cutter tunnel described in accordance with the claim 1, it is characterised in that：In step 201
Wear-resistant composite board (7) is bimetal composite wear resistant plate, and the bimetal composite wear resistant plate is welded on two by the way of arc welding
On the big girth joint of outer rim between a big ring steel plate (6) of outer rim.
3. according to method for repairing and constructing is worn in shield cutter tunnel as claimed in claim 1 or 2, it is characterised in that：Step 203
The quantity of middle inclined-plane folded plate composite plate (11) is even number, and the inclined-plane folded plate composite plate (11) laid in pairs is separately positioned on inclined-plane
The both ends of folded plate (2).
4. wearing method for repairing and constructing in shield cutter tunnel described in accordance with the claim 3, it is characterised in that：In step 301
It is needed to original before the new big scraper tool apron correspondence is welded on original big scraper tool apron by cutterhead repair space
There is big scraper tool apron to carry out polishing cleaning；In cutterhead repair space by the new small scraper knife in outer ring in step 302
Corresponding be welded on the small scraper tool apron in original outer ring of seat needs to carry out polishing cleaning to the small scraper tool apron in original outer ring before.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173113.7A CN106640101B (en) | 2016-12-18 | 2016-12-18 | Method for repairing and constructing is worn in shield cutter tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611173113.7A CN106640101B (en) | 2016-12-18 | 2016-12-18 | Method for repairing and constructing is worn in shield cutter tunnel |
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| CN106640101A CN106640101A (en) | 2017-05-10 |
| CN106640101B true CN106640101B (en) | 2018-08-17 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108422068A (en) * | 2018-03-13 | 2018-08-21 | 中铁隧道局集团有限公司 | TBM cutterhead scraper plate method for maintaining |
| CN108356433A (en) * | 2018-03-13 | 2018-08-03 | 中铁隧道局集团有限公司 | TBM cutterheads and base bearing repair method |
| CN108747197A (en) * | 2018-05-31 | 2018-11-06 | 中建八局轨道交通建设有限公司 | Cutter head of shield machine panel repairs structure and restorative procedure |
| CN111042826A (en) * | 2020-01-15 | 2020-04-21 | 武汉市汉阳市政建设集团有限公司 | Method for repairing shield cutter head cutter box in tunnel |
| CN111946350A (en) * | 2020-08-12 | 2020-11-17 | 中铁二十局集团第三工程有限公司 | Construction method for rapidly repairing edge of shield cutter based on high-abrasion stratum |
| CN112593951B (en) * | 2020-12-07 | 2021-11-02 | 安徽唐兴机械装备有限公司 | Device for rapidly replacing cutter head of push bench and working method thereof |
| CN113634983A (en) * | 2021-08-11 | 2021-11-12 | 中铁二十局集团有限公司 | Method for repairing cutter head of shield tunneling machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201241710Y (en) * | 2008-08-22 | 2009-05-20 | 中国建筑一局(集团)有限公司 | Sand cobble stratum shield cutter head |
| CN103061776B (en) * | 2013-01-06 | 2015-05-27 | 中铁隧道集团有限公司 | Method for repairing TBM (tunnel boring machine) cutter head in intra-tunnel high-pressure environment |
| CN103670429B (en) * | 2013-11-29 | 2016-01-20 | 北京交通大学 | A kind of shield structure directly cuts the knife disc tool Enhancement Method of steel bar concrete pile |
| CN204041076U (en) * | 2014-07-28 | 2014-12-24 | 中铁二十局集团有限公司 | A kind of underground pipe gallery shield-tunneling construction shield cutter |
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