CN103758526A - Concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction - Google Patents
Concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction Download PDFInfo
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- CN103758526A CN103758526A CN201410001569.XA CN201410001569A CN103758526A CN 103758526 A CN103758526 A CN 103758526A CN 201410001569 A CN201410001569 A CN 201410001569A CN 103758526 A CN103758526 A CN 103758526A
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Abstract
The invention relates to a concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction. The cutterhead comprises a cutterhead body in a spoke form. The center of the cutterhead body is provided with a support. Aperture ratio of the cutterhead body is high. The front of the cutterhead body is provided with cutting tools and advancing tools. The back of the cutterhead body is provided with mixing rods. The concave cutterhead is simple and solid in structure, high in strength and rigidity, high in wear resistance and long in service life, is rigid and strong enough to support a large-diameter excavation face and bear tunneling thrust and torque, has the effect of guaranteeing excavation diameter, is capable of breaking hard or harder rock layers and reinforcing zone cement and the like, and can meet the construction requirements for ultra-long-range pipe jacking in complex formations. A face plate of the spoked cutter head is large and the aperture ratio of the spoked cutterhead is high, so that smoothness of much entering an earth compartment is guaranteed and tool wear is reduced. The mixing rods provided have the effect of mixing earth in the earth compartment, so that earth cakes are avoided, the plasticity and fluidity of earth is improved, the earth is convenient to convey out of the earth compartment, unearthing speed is increased, and construction efficiency is improved.
Description
Technical field
The present invention relates to the earth pressure balance pipe jacking tunnelling machine cutterhead that a kind of building operations is used, the large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead that especially a kind of energy cutting and repeatedly broken cement-soil and ground length are used apart from jacking construction.
Background technology
At present, existing earth pressure balance pipe jacking tunnelling machine cutterhead, has certain limitation in reaching the construction of 2039.82m pipe-jacking project reaching 4640mm and single jacking length as line eastern section, Bai Long port sewerage treatment south engineering SST2.2 bid section external diameter.Line eastern section, sewerage treatment south, Bai Long port engineering SST2.2 bid section is current maximum gauge and the pipe-jacking project with diameter longest distance, the large distance of top tube diameter, need to there be enough Rigidity and strengths for supporting excavation face, to bear larger thrust and the moment of torsion of driving, because jacking distance needs the anti-wear performance of cutterhead good and have enough life-spans.Same because the large distance of diameter needs the soil mass of cutting and output also large, this also has higher requirement to push pipe cutterhead aperture opening ratio and the cutting efficiency of construction waiting of being unearthed.The part location that push pipe passes through is the former cement-soil ground stabilization of welcome's high speed soil layer after treatment, needs cutting and second-time breakage cement-soil, to the Rigidity and strength of cutterhead, requires high.Based on above-mentioned requirements, existing earth pressure balance pipe jacking tunnelling machine cutterhead more or less has certain lacuna, cannot meet the construction requirement of background engineering.
Summary of the invention
The present invention be to solve existing earth pressure balance pipe jacking tunnelling machine cutterhead strength and stiffness not, at the bottom of cutterhead aperture opening ratio, abrasion resistance not and cannot cut broken cement-soil etc., cannot meet extra long distance super large apart from the particularly technical problem of the needs of rapid construction of jacking construction, and provide a kind of long apart from jacking construction large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of long apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, comprise cutterhead, be characterized in: cutterhead is spoke shape, centre is provided with support, cutterhead aperture opening ratio is large, and bite, dual-pilot cutter are equipped with in cutterhead front portion, and cutterhead back is provided with stirring rod.
Cutterhead is welded by spoke, outer girth sheets, gusset, back shroud, antifriction alloy bar and brace summer, and spoke is the shape that concaves, and between spoke, by gusset and outer girth sheets, links into an integrated entity.
On cutterhead, be equipped with 18 0 ° of bites, 16 10 ° of bites, 16 15 ° of bites, 8 20 ° of bites, 29 dual-pilot cutter; At the netted wearable hard alloy of cutterhead outer ring abrading section built-up welding, a periphery cutter is housed on cutterhead cycle surface.
12 center cutters are housed on the splice bar of cutterhead center.The height of bite is 70mm, and the height of dual-pilot cutter is 90mm, and bite and dual-pilot cutter are made by superhard cutting blade material by abrasion resistance and the superior mine excavation of resistance to impact.
Spoke is four, and stretches to centre, is the trapezium structure that outer imperial palace is little, cutterhead aperture opening ratio 66%.Cutterhead back arranges three stirring rod, and the spoke of outer ring, cutterhead back arranges two stirring rod to support place, and centre, cutterhead back arranges a stirring rod.
The invention has the beneficial effects as follows:
(1) cutter head structure of the present invention is fairly simple, firm in structure, and intensity is high, and rigidity is large, and rub proofness is high, and the configuration selection of the design of cutterhead and cutter and layout require rationally, and the life-span is long.
(2) cutterhead has supporting performance to excavation mask, can play the stabilization of balanced support excavation face.There is enough Rigidity and strengths bear driving thrust and moment of torsion for supporting major diameter excavation face.
(3) can effectively guarantee digging diameter, there is repeatedly breaking capacity, can be broken hard or compared with hard rock soil layer and stabilization zone cement-soil etc.
(4) cutterhead configuration dual-pilot cutter, dual-pilot cutter can carry out disturbance in advance to the soil body being cut, and reduces the resistance of knife cutting.
(5) spoke formula cutter head panel and cutterhead aperture opening ratio large (66%) can guarantee that dregs enters the smoothness of Tu Cang and reduces tool wear, stirring rod can be stirred the soil body in native storehouse effectively, prevent the generation of mud cake, the function of improvement plasticity and fluidity of soil, be convenient to the soil body exports from native cabin, accelerate the speed of being unearthed, improve efficiency of construction.
(6) can meet extra long distance (the more than single driving 2km) construction requirement of push pipe in bad ground.
Accompanying drawing explanation
Fig. 1 is the main sectional view of structure of the present invention;
Fig. 2 is the left view of Fig. 1.
The specific embodiment
Below in conjunction with concrete embodiment, further set forth the present invention.Should be understood that these embodiments are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As Fig. 1, shown in 2, length of the present invention is apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, comprise cutterhead 1 and cutting tool etc., cutterhead 1 structure is spoke shape intermediate supports mode, and cutterhead aperture opening ratio is large, at cutterhead back, is provided with stirring rod 7.Cutterhead 1 is welded by spoke 6, outer girth sheets, gusset, back shroud, antifriction alloy bar and brace summer, and spoke 6 is the shape that concaves, and between spoke 6, by gusset and outer girth sheets, links into an integrated entity.In each spoke 6, cutting tool is set, cutting tool comprises bite 2 and dual-pilot cutter 3, and these cutters can carry out disturbance in advance to the soil body being cut, and reduces the resistance of knife cutting.
On cutterhead 1, be equipped with 18 0 ° of bites 2,16 10 ° of bites 2,16 15 ° of bites 2,8 20 ° of bites 2.29 dual-pilot cutters 3 are housed in cutterhead main body.Cutterhead 1 takes into full account stratum to be had compared with galling cutterhead, at the cutterhead 1 outer ring wearing and tearing netted wearable hard alloy a large amount of compared with multiple location built-up welding, 8 periphery cuttves 5 is housed on cutterhead 1 cycle surface, greatly improves the anti-wear performance of cutterhead, extends its application life.On cutterhead 1 center splice bar, 12 center cutters 4 are housed.The height of bite 2 is 70mm, and the height of dual-pilot cutter 3 is 90mm.Cutter adopts abrasion resistance and the superior mine excavation of resistance to impact superhard cutting blade material.
Spoke 6 is four, and stretches to centre, is the trapezium structure that outer imperial palace is little, and cutterhead aperture opening ratio 66% guarantees that dregs enters the smoothness of Tu Cang and reduces tool wear.Cutterhead back arranges 3 stirring rod 7, wherein place, outer ring, cutterhead back spoke 6 arranges 2 stirring rod 7 to support, centre, cutterhead back arranges 1 stirring rod 7, stirring rod can be stirred the soil body in native storehouse effectively, prevent the generation of mud cake, the function of improvement plasticity and fluidity of soil, is convenient to the soil body and exports from native cabin, accelerate the speed of being unearthed, improve efficiency of construction.
Generally speaking cutter head structure of the present invention is fairly simple, firm in structure, intensity is high, rigidity is large, rub proofness is high, the configuration selection of the design of cutterhead and cutter and layout require rationally, there is enough life-spans, by the reasonable disposition of knife disc tool, can greatly alleviate the wearing and tearing of cutter and spoke, there is enough Rigidity and strengths bear driving thrust and moment of torsion for supporting major diameter excavation face, can effectively guarantee digging diameter, and can be broken hard or compared with hard rock soil layer and stabilization zone cement-soil etc., can meet extra long distance (the more than single driving 2km) construction requirement of push pipe in bad ground.
Application implementation example of the present invention:
Engineering adopts φ 4640mm jacking construction, is largest domestic diameter concrete ceiling coil, and single jacking length 2039.82m, is same diameter longest distance push pipe.The part location that push pipe passes through is the former cement-soil ground stabilization of welcome's high speed soil layer after treatment, and soil cement intensity is higher.
Apply large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead construction of the present invention, jacking is complete smoothly for engineering at present, tool pipe has accurately entered safely hole, check construction complete enter cutterhead behind hole, knife disc tool is all complete without damaged, and it is also less to wear and tear, knife disc tool can also reuse, and can find out that knife disc tool of the present invention has enough application life.This engineering push pipe is during with 0.05m/min fast jacking, spoke formula cutter head panel of the present invention and cutterhead aperture opening ratio large (66%) have guaranteed that the dregs excavating enters the smoothness of Tu Cang, and effectively stir the soil body in native storehouse by stirring rod, improved the function of plasticity and fluidity of soil, the almost generation without mud cake in soil cabin, the speed of being unearthed is fast, and corresponding efficiency of construction is also high.Generally speaking apply the present invention when assurance background engineering extra long distance super-large diameter push pipe is guaranteed both quality and quantity smooth construction, improved efficiency of construction, saved the duration and saved construction cost.
Claims (7)
1. one kind long apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, comprise cutterhead (1), it is characterized in that: described cutterhead (1) is spoke shape, centre is provided with support, cutterhead aperture opening ratio is large, bite (2), dual-pilot cutter (3) are equipped with in cutterhead 1 front portion, and cutterhead 1 back is provided with stirring rod (7).
2. length according to claim 1 is apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, it is characterized in that: described cutterhead (1) is welded by spoke (6), outer girth sheets, gusset, back shroud, antifriction alloy bar and brace summer, spoke (6) is the shape that concaves, and between spoke (6), by gusset and outer girth sheets, links into an integrated entity.
3. length according to claim 1, apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, is characterized in that: on described cutterhead (1), be equipped with 18 0 ° bite (2), 16 10 ° of bites (2), 16 15 ° of bites (2), 8 20 ° of bites (2), 29 dual-pilot cutter (3); At the netted wearable hard alloy of cutterhead 1 abrading section, outer ring built-up welding, on cutterhead (1) cycle surface, 8 periphery cuttves (5) are housed.
4. length according to claim 1, apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, is characterized in that: on the splice bar of described cutterhead (1) center, 12 center cutters (4) are housed.
5. length according to claim 1 is apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, it is characterized in that: the height of described bite (2) is 70mm, the height of dual-pilot cutter (3) is 90mm, and bite (2) and dual-pilot cutter (3) are made by superhard cutting blade material by abrasion resistance and the superior mine excavation of resistance to impact.
6. length according to claim 2 is apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, it is characterized in that: described spoke (6) is four, and stretch to centre, be the trapezium structure that outer imperial palace is little, cutterhead (1) aperture opening ratio 66%.
7. length according to claim 1 is apart from large-diameter earth pressure balance pipe jacking tunnelling machine inner concave shape cutterhead for jacking construction, it is characterized in that: cutterhead (1) back arranges three stirring rod (7), the spoke (6) of cutterhead (1) outer ring, back arranges two stirring rod (7) to support place, and cutterhead (1) centre, back arranges a stirring rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001569.XA CN103758526A (en) | 2014-01-03 | 2014-01-03 | Concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001569.XA CN103758526A (en) | 2014-01-03 | 2014-01-03 | Concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction |
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| CN103758526A true CN103758526A (en) | 2014-04-30 |
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| CN201410001569.XA Pending CN103758526A (en) | 2014-01-03 | 2014-01-03 | Concave cutterhead for large-diameter earth pressure balanced pipe-jacking machine of long-range jacking construction |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049881A (en) * | 2018-01-19 | 2018-05-18 | 辽宁三三工业有限公司 | The full stratum cutterhead of balancing earth-pressure shielding machine |
| CN108266202A (en) * | 2018-03-28 | 2018-07-10 | 中铁上海工程局集团有限公司 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
| CN109184723A (en) * | 2018-08-10 | 2019-01-11 | 淮南中泰矿山装备制造有限公司 | Pipe jacking tunnelling machine high intensity cutterhead |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3627272A1 (en) * | 1986-08-12 | 1988-02-18 | Gewerk Eisenhuette Westfalia | Driving shield, in particular for driving with a heading face supported by earth pressure, with mixing arms arranged on a driven cutting wheel or the like |
| CN1420256A (en) * | 2001-11-21 | 2003-05-28 | 三菱重工业株式会社 | Tunnel excavator and method for recovery of tunnel excavator |
| CN1619102A (en) * | 2004-12-09 | 2005-05-25 | 上海隧道工程股份有限公司 | Cutter head for cutter head changeable entrydriving mechine |
| 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 |
| CN101749027A (en) * | 2010-01-13 | 2010-06-23 | 天津大学 | Multi-adaptive cutter head for shield machine |
| CN103161472A (en) * | 2011-12-12 | 2013-06-19 | 上海市基础工程有限公司 | Concave cutter of slurry balance tube push bench |
-
2014
- 2014-01-03 CN CN201410001569.XA patent/CN103758526A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3627272A1 (en) * | 1986-08-12 | 1988-02-18 | Gewerk Eisenhuette Westfalia | Driving shield, in particular for driving with a heading face supported by earth pressure, with mixing arms arranged on a driven cutting wheel or the like |
| CN1420256A (en) * | 2001-11-21 | 2003-05-28 | 三菱重工业株式会社 | Tunnel excavator and method for recovery of tunnel excavator |
| CN1619102A (en) * | 2004-12-09 | 2005-05-25 | 上海隧道工程股份有限公司 | Cutter head for cutter head changeable entrydriving mechine |
| 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 |
| CN101749027A (en) * | 2010-01-13 | 2010-06-23 | 天津大学 | Multi-adaptive cutter head for shield machine |
| CN103161472A (en) * | 2011-12-12 | 2013-06-19 | 上海市基础工程有限公司 | Concave cutter of slurry balance tube push bench |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049881A (en) * | 2018-01-19 | 2018-05-18 | 辽宁三三工业有限公司 | The full stratum cutterhead of balancing earth-pressure shielding machine |
| CN108266202A (en) * | 2018-03-28 | 2018-07-10 | 中铁上海工程局集团有限公司 | Rectangular pipe jacking machine excavation face blind area breaker and its method |
| CN109184723A (en) * | 2018-08-10 | 2019-01-11 | 淮南中泰矿山装备制造有限公司 | Pipe jacking tunnelling machine high intensity cutterhead |
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Application publication date: 20140430 |