CN107143342A - A kind of sediment improvement system of multi-cutter-disk development machine - Google Patents
A kind of sediment improvement system of multi-cutter-disk development machine Download PDFInfo
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- CN107143342A CN107143342A CN201710510914.6A CN201710510914A CN107143342A CN 107143342 A CN107143342 A CN 107143342A CN 201710510914 A CN201710510914 A CN 201710510914A CN 107143342 A CN107143342 A CN 107143342A
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- 238000011161 development Methods 0.000 title claims abstract description 83
- 230000006872 improvement Effects 0.000 title claims abstract description 57
- 239000013049 sediment Substances 0.000 title claims abstract description 35
- 239000004927 clay Substances 0.000 claims abstract description 88
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 238000011010 flushing procedure Methods 0.000 claims abstract description 15
- 238000009412 basement excavation Methods 0.000 claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims description 17
- 230000001174 ascending effect Effects 0.000 claims description 14
- 239000007921 spray Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 239000002893 slag Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 239000006260 foam Substances 0.000 description 13
- 239000004576 sand Substances 0.000 description 10
- 239000002689 soil Substances 0.000 description 9
- 230000009467 reduction Effects 0.000 description 6
- 229910000278 bentonite Inorganic materials 0.000 description 5
- 239000000440 bentonite Substances 0.000 description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 5
- 230000005587 bubbling Effects 0.000 description 5
- 239000002002 slurry Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000011440 grout Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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- 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
- E21D9/001—Improving soil or rock, e.g. by freezing; Injections
-
- 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
- E21D9/0642—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining the shield having means for additional processing at the front end
- E21D9/0678—Adding additives, e.g. chemical compositions, to the slurry or the cuttings
-
- 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
-
- 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Soil Sciences (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention belongs to tunnel construction equipment technical field, specifically related to a kind of sediment improvement system of multi-cutter-disk development machine, including cutterhead improved system, clay injected system, excavate blind area flushing system and master control mechanism, the cutterhead improved system, the collaboration of clay injected system and excavation blind area flushing system work independently by master control mechanism controls, wherein cutterhead improved system can realize the injection of the sediment improvement agent of multiple cutterheads simultaneously, separate between each cutterhead, each cutterhead optionally injects different modifying agents；Clay can be injected into native silo roof portion, slag-drip opening top, the easy slag region of anterior shield dividing plate two bottom sides by clay injected system, and vault supporting, the function of reducing jacking frictional force, wrap up bulky grain dregs are realized respectively；Blind area flushing system is excavated to realize the cutting of excavation blind area dregs by water under high pressure and aid in sediment improvement.
Description
Technical field
The invention belongs to tunnel construction equipment technical field, and in particular to a kind of sediment improvement of multi-cutter-disk development machine
System.
Background technology
Development machine constructing tunnel, have the advantages that it is safe efficient, environmentally friendly, in railway, highway, water power, municipal administration, state
It is used widely in the field such as anti-.But the current rock tunnel(ling) machine overwhelming majority belongs to circular hilted broadsword disc-type, multi-cutter-disk driving
Machine is also in starting developing stage.Compared with hilted broadsword disk development machine, multi-cutter-disk development machine has cost is low, adapt to shallow earthing to dig
Enter, the advantages of any section is excavated can be achieved, but due to being generally section, deslagging is difficult, while cutterhead quantity is more, it is right
The requirement of sediment improvement is very high.
Sediment improvement is a key link during tunneler construction, and development machine is excavated by the rotation of cutterhead
Undisturbed soil, mobility is poor from plasticity, it is necessary to add different modifying agents according to different soil layer, and stirs equal in native storehouse
It is even, by sediment improvement into " moulding flow regime ", it could effectively set up earth pressure balance, it is to avoid dregs is tied in native storehouse
Cake, occlusion, gush and the engineering accident such as face unstability, so the quality of sediment improvement directly affects the success or failure of engineering.
At present, the sediment improvement technology of circular hilted broadsword disk development machine relative maturity, and the dregs of multi-cutter-disk development machine changes
Good technology is also in groping under the complex geological conditions such as feedback and evaluation, particularly sand pebble layer, upper soft lower hard compound stratum, multitool
The sediment improvement system of disk development machine is at home still in technological gap.Sand pebble layer or upper soft lower hard compound stratum are from mechanics
Strong unstability is shown as in mechanism, particularly top self-stable ability is poor, it is easy to disturbed and occur collapsing and settle,
The dregs mobility extreme difference of the big particle diameter such as cobble.Sediment improvement effect directly influence spiral shell machine slag tap, cutter head torque, driving speed
The key parameters such as degree, settlement Control, decide the success or failure of engineering.And must be examined during multi-cutter-disk development machine sediment improvement system design
Consider the adaptability of most complicated geological.
The span of multi-cutter-disk development machine excavated section is larger, when being tunneled in upper soft lower hard compound stratum, each cutterhead institute
The strata condition at place is not quite similar, and each cutterhead needs the species for injecting modifying agent also can be different during excavation；Multi-cutter-disk development machine
Helical feed machine inlet for deslagging is not at the minimum point in structure, and big particle diameter dregs is difficult to flow to slag-drip opening, is entered
And cause local slag influence driving；Multi-cutter-disk development machine generally there are excavation blind area and be handled, it is necessary to carry out ancillary method；
Multi-cutter-disk development machine is used for shallow earthing and excavated, and general overburden layer thickness is less than 5m, and top water penetration is big, and gas permeability is strong, Yi Zao
Into ground settlement and grout.So, traditional mode of ameliorating is insufficient for the requirement of multi-cutter-disk tunneler construction, therefore, hair
A kind of bright sediment improvement system suitable for multi-cutter-disk development machine is significant.
The content of the invention
The goal of the invention of the present invention is to overcome the defect described in background technology, so as to realize each a kind of cutterhead
Improved system is relatively independent, while can realize integrated control again, can adapt to various geological conditions, a variety of modifying agents coordinate and made
With the sediment improvement system for the multi-cutter-disk development machine that achievable optimal mode of ameliorating is switched fast.
For achieving the above object, the technical scheme is that：A kind of sediment improvement system of multi-cutter-disk development machine,
Including cutterhead improved system, clay injected system, excavate blind area flushing system and master control mechanism, it is characterised in that：The cutterhead
Improved system includes multiple cutterhead unit improvement mechanisms being arranged in parallel, and each cutterhead of multi-cutter-disk development machine is provided with one
The independent cutterhead unit improvement mechanism of set, the cutterhead unit improvement mechanism of each cutterhead is separate, and the cutterhead of each cutterhead
Unit improvement mechanism is by master control mechanism independent control, and cutterhead improved system can realize the sediment improvement agent of multiple cutterheads simultaneously
Injection, each cutterhead optionally injects different modifying agents；Clay can be injected into native silo roof portion, row by clay injected system
Cinder notch top, the easy slag region of anterior shield dividing plate two bottom sides, realize vault supporting, reduce jacking frictional force, big of parcel respectively
The function of grain dregs；Blind area flushing system is excavated to realize the cutting of excavation blind area dregs by water under high pressure and aid in sediment improvement.
The cutterhead unit improvement mechanism includes external interface, modifying agent ascending pipe, Self controlling valve, center nozzle and injects logical
Road, periphery spout injection channel, cutter head center spout and cutterhead periphery spout, the center nozzle injection channel and periphery spout
Injection channel is arranged in parallel, and modifying agent ascending pipe one end is connected with external interface, the modifying agent ascending pipe other end respectively with center
Spout injection channel is connected with periphery spout injection channel, and is gone here and there on center nozzle injection channel and periphery spout injection channel
Connection is provided with Self controlling valve and check valve；Center nozzle injection channel corresponds to and connected respectively with periphery spout injection channel end
Cutter head center spout and cutterhead periphery spout, the Self controlling valve of the center nozzle injection channel or periphery spout injection channel with
The side modifying agent ascending pipe of a band Self controlling valve is arranged in parallel between check valve；When development machine cutter diameter is not more than
During 1.2m, cutterhead periphery spout is only set on development machine cutterhead；When development machine cutterhead is more than 1.2m, set on development machine cutterhead
There are cutter head center spout and cutterhead periphery spout, independent Self controlling valve control can be achieved, each cutterhead can inject one kind or two
Plant modifying agent.
The clay injected system includes clay inlet, clay control valve, clay conveyance conduit and clay external tapping, institute
State clay inlet be fixedly installed on respectively at the top of the anterior shield dividing plate of development machine, it is above development machine slag-drip opening and preceding on anterior shield dividing plate
Shield dividing plate two bottom sides, and the outlet of clay inlet connects with the Tu Cang of development machine, each clay inlet is connected one
Clay control valve, and each clay inlet is arranged in parallel by clay conveyance conduit, clay conveyance conduit outer end and clay
External tapping is connected, the external clay pumping plant of clay external tapping.
Excavation blind area flushing system includes water under high pressure inlet, high pressure water control valve, high-pressure water pipeline and water under high pressure
External tapping, the water under high pressure inlet is fixedly installed on correspondence cutterhead in the middle part of development machine anterior shield dividing plate and excavates blind zone position, high pressure
The outlet of water inlet is connected with the Tu Cang of development machine, and each water under high pressure inlet is connected a high pressure water control valve, and each
Water under high pressure inlet is arranged in parallel by high-pressure water pipeline, and high-pressure water pipeline outer end is connected with water under high pressure external tapping, water under high pressure
The external pump works of external tapping；The cutterhead improved system, clay injected system and the collaboration or only for excavating blind area flushing system
Vertical work is by master control mechanism controls.
As the preferred technical solution of the present invention, 4 clay inlets are set at the top of the anterior shield dividing plate of development machine, and this 4
The exit of individual clay inlet is tiltedly installed with the otch ring that development machine anterior shield is extended at the top of guiding gutter, the guiding gutter
Locate, and guiding gutter is fixedly installed at the top of development machine anterior shield on the clapboard of knife cutting blind area.
Clay inlet injection clay at the top of toward anterior shield dividing plate, one side small part clay can flow automatically to bottom, with soil
The dregs stirring mixing in storehouse, improves the cobble parcel ability of dregs；On the other hand, mud film is formed with native silo roof portion in face,
Fine sand layer at the top of stable, reduction drift sand is formed alters on the risk in cavity, the bubble for stopping foam, prevents earth's surface grout, bubbling；
In addition, being injected into the clay at top by guiding gutter can be expressed to above shield shell automatically by the effect of pressure, to gap of backbreaking
It is filled, reduces ground settlement, while reducing the frictional force of shield shell and the soil body, reduction promotes top power, energy efficiency；Anterior shield every
On plate above development machine slag-drip opening and anterior shield dividing plate two bottom sides clay inlet injection clay, cobble that can be larger to particle diameter
The cohesive strength formed between good package action, enhancing cobble, is conducive to the flowing of cobble, improves deslagging efficiency, effectively keep away
Exempt from the cobble accumulation of helical feed machine inlet both sides.
As the preferred technical solution of the present invention, the top shield shell on rear side of clay inlet at the top of development machine anterior shield dividing plate
On be fixedly installed pressure sensor, pressure sensor signal feeds back to master control mechanism, pass through pressure feedback control clay inject
Amount, when pressure is more than 2.5bar, master control mechanism controls clay injected system is automatically stopped work, when development machine internal pressure is small
When 0.5bar, master control mechanism controls clay injected system automatic start.
As the preferred technical solution of the present invention, the rear portion of water under high pressure inlet, which is hinged, is fixedly installed globular hinge machine
Structure, the spherical hinging mechanism includes being hinged housing and globular hinge head, and the globular hinge head, which is hinged to be arranged at, is hinged housing
It is interior, the external high-pressure water pipeline of water inlet end and high pressure water control valve of globular hinge head, the central shaft of spherical hinging mechanism is in ring
Optional position can 20 ° of maximum rotation laterally.
A variety of sediment improvement schemes of the sediment improvement system of the multi-cutter-disk development machine of the present invention：
By taking the development machine of 8 cutterheads in Figure of description as an example, wherein No. 7, No. 8 cutter diameters be 1.2m, each cutterhead sets 4
Cutterhead periphery spout；No. 1, No. 2, No. 3, No. 4, No. 5, No. 6 cutter diameters be all higher than 1.2m, each cutterhead is provided with 1 cutterhead
Center nozzle and 4 cutterhead periphery spouts：
1. when the overburden layer for excavating region and top is sand, boulder bed, the cutter head center spout of No. 1, No. 2, No. 5 cutterhead with
Cutterhead periphery spout injects improvement bentonite slurry；The cutter head center spout of No. 3, No. 4, No. 6 cutterheads injects improvement swelling
Soil paste liquid, cutterhead periphery spout injects foam；No. 7, No. 8 cutterhead periphery spouts inject foam.
When top overburden layer is sand, boulder bed, toward the cutter head center spray of No. 3, No. 4, No. 6 cutterheads positioned at Tu Cang bottoms
The cutterhead periphery spout injection foam of mouth and No. 7, No. 8 cutterheads, can reduce the internal friction angle of dregs, improve dregs in native storehouse
Mobility and plasticity, reduce cutter head torque, reduce the abrasion of sand, cobble to knife disc tool；The foam formed simultaneously can be with sky
Gas is flowed up, and realizes and the foam of the top soil body is improved, and foam, with improveing bentonitic stop, is unlikely to by the top soil body
Pressure is excessive and ground bubbling occurs.
2. be sand, boulder bed when excavating region, when the overburden layer on top is argillic horizon, No. 1, No. 2, No. 3, No. 4, No. 5,6
The cutter head center spout of number cutterhead injects improvement bentonite slurry, and cutterhead periphery spout injects foam；No. 7, No. 8 cutterheads
Cutterhead periphery spout injects foam.
When top overburden layer is clay, the possibility reduction gone here and there on foam, by the cutterhead periphery of No. 1, No. 2, No. 5 cutterhead
Spout switches to foam by injection improvement bentonite slurry, can more efficiently reduction moment of torsion.
Toward No. 1, No. 2, No. 5 cutterhead injection improvement bentonite slurries positioned at Tu Cang tops, slag is being carried out to upper area
While land reform is good, improvement bentonite slurry can arrive bottom cutterhead because of a deadweight gravity flow part, realize the improvement to bottom dregs；
The infiltration coefficient of the soil body can be reduced simultaneously, and the fine sand layer on stable top, reduction drift sand forms the risk in cavity, forms the resistance of mud film
Altered in gear foam bubbles, prevent earth's surface bubbling.
The beneficial effect of the sediment improvement system of the multi-cutter-disk development machine of the present invention：
1. the sediment improvement system of the multi-cutter-disk development machine of the present invention, in normal tunneling process, conveying worm deslagging is smooth,
Charging aperture both sides do not occur the phenomenon of cobble accumulation, and the support pressure gap of multi-cutter-disk development machine both sides is less than after testing
0.04MPa, and pressure change is steady, illustrates that the support pressure dregs mobility of rectangular top pipe both sides is preferable；In addition, normally digging
Settling amount control is excavated during entering in 5mm, ground occurs without grout, bubbling phenomenon, and cutter head torque is smaller.
2. the sediment improvement system of the multi-cutter-disk development machine of the present invention, while realizing the sediment improvement of multiple cutterheads, respectively
The improved system of individual cutterhead is relatively independent, while can realize integrated control again, realizes that improved system is adapted under various geological conditions
Property maximization, while have the combination function that a variety of modifying agents are used cooperatively, according to being continually changing for stratum, can be achieved optimal
Evolutionary approach is switched fast.
3. the sediment improvement system of the multi-cutter-disk development machine of the present invention, adds clay injected system, realizes following several
Individual function：A. the caving ground formed in face with native silo roof portion at the top of mud film, supporting, reduces what is formed cavity and cave in
Risk；Altered on the bubble for stopping foam, prevent earth's surface grout, bubbling；B. it is injected into the clay at the top of anterior shield dividing plate and passes through pressure
Effect can be expressed to automatically above shield shell, to backbreaking, gap is filled, and reduces ground settlement, while reducing shield shell and the soil body
Frictional force, reduction promote top power, energy efficiency；C. the clay of anterior shield dividing plate bottom is injected into after Tu Cang, can be larger to particle diameter
Cobble form good package action, the cohesive strength between enhancing cobble is conducive to the flowing of cobble, improves deslagging efficiency,
It is prevented effectively from the cobble accumulation of helical feed machine inlet both sides.
4. the sediment improvement system of the multi-cutter-disk development machine of the present invention, is provided with excavation blind area flushing system, blind excavating
The spherical hinging mechanism for the water under high pressure injection that the position in area is provided with, the swing of spherical hinging mechanism adds washing away for water under high pressure
Scope, on the one hand can improve the mobility of dregs in without water sand, boulder bed, and another aspect etc. enough aids in excavating blind area to cutterhead
Processing is washed away in progress.
Brief description of the drawings
Fig. 1 is the theory structure schematic diagram of cutterhead improved system；
Fig. 2 is the cutterhead spout layout drawing that multi-cutter-disk development machine is more than 1.2m cutterheads；
Fig. 3 is the cutterhead spout layout drawing that multi-cutter-disk development machine is not more than 1.2m cutterheads；
Fig. 4 is the theory structure schematic diagram of clay injected system；
Fig. 5 is the cross-sectional view of multi-cutter-disk development machine anterior shield part；
Fig. 6 is the theory structure schematic diagram for excavating blind area flushing system；
Fig. 7 is the mounting structure schematic diagram of spherical hinging mechanism.
In figure：In 1- cutterhead improved systems, 101- external interfaces, 102- modifying agent ascending pipes, 103- Self controlling valves, 104-
Heart spout injection channel, 105- peripheries spout injection channel, 106- cutter head center spouts, 107- cutterheads periphery spout, 108- sides
Modifying agent ascending pipe, 2- clay injected systems, 201- clay inlets, 202- clay control valves, 203- clay conveyance conduits,
204- clay external tappings, 3- excavates blind area flushing system, 301- water under high pressure inlets, 302- high pressure water control valves, 303- high pressures
Waterpipe, 304- water under high pressure external tappings, 4- anterior shield dividing plates, 5- slag-drip openings, 6- guiding gutters, 7- otch rings, 8- clapboards, 9- shields
Shell, 10- pressure sensors, 11- spherical hinging mechanisms, 111- is hinged housing, 112- globular hinge heads, 12- check valves, 13-
Clay pumping plant, 14- pump works.
Embodiment
Below in conjunction with the accompanying drawings and by specific embodiment to the sediment improvement system of the multi-cutter-disk development machine of the present invention
Do more detailed description.
In the description of the invention, it is to be understood that term " on ", " under ", "front", "rear", "left", "right",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer " are
For the ease of the description present invention and simplified description, rather than indicate or imply that the device or element of meaning must be with specific sides
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Embodiment 1：
The sediment improvement system of the multi-cutter-disk development machine of the present invention, development machine is by taking the development machine of 8 cutterheads as an example, wherein No. 7, No. 8
Cutter diameter is 1.2m, and each cutterhead sets 4 cutterhead periphery spouts；No. 1, No. 2, No. 3, No. 4, No. 5, No. 6 cutter diameters it is equal
More than 1.2m, each cutterhead is provided with 1 cutter head center spout and 4 cutterhead periphery spouts.
The sediment improvement system of the multi-cutter-disk development machine of the present invention, including cutterhead improved system 1, clay injected system 2, open
Blind area flushing system 3 and master control mechanism are dug, the cutterhead improved system 1 includes multiple cutterhead unit improvement machines being arranged in parallel
Structure, each cutterhead of multi-cutter-disk development machine is provided with a set of independent cutterhead unit improvement mechanism, the cutterhead of each cutterhead
Unit improvement mechanism is separate, and each cutterhead cutterhead unit improvement mechanism by master control mechanism independent control, the knife
Disk unit improvement mechanism includes external interface 101, modifying agent ascending pipe 102, Self controlling valve 103, center nozzle injection channel
104th, periphery spout injection channel 105, cutter head center spout 106 and cutterhead periphery spout 107, the center nozzle injection channel
104 and periphery spout injection channel 105 be arranged in parallel, the one end of modifying agent ascending pipe 102 is connected with external interface 101, modifying agent
The other end of ascending pipe 102 is connected with center nozzle injection channel 104 and periphery spout injection channel 105 respectively, and center nozzle
Self controlling valve 103 and check valve 12 have been arranged in series on injection channel 104 and periphery spout injection channel 105；Spray at center
Mouth injection channel 104 corresponds to and connects cutter head center spout 106 and the spray of cutterhead periphery respectively with the end of periphery spout injection channel 105
Mouth 107, has been arranged in parallel a band certainly between the Self controlling valve 103 and check valve 12 of the center nozzle injection channel 104
Control the side modifying agent ascending pipe 108 of valve 103.
The clay injected system 2 includes clay inlet 201, clay control valve 202, clay conveyance conduit 203 and glued
Native external tapping 204, the clay inlet 201 is fixedly installed on the anterior shield dividing plate 4 of development machine top, on anterior shield dividing plate 4 respectively
The top of development machine slag-drip opening 5 and the two bottom sides of anterior shield dividing plate 4, and the outlet of clay inlet 201 are connected with the Tu Cang of development machine,
Each one clay control valve 202 of series connection, and each clay inlet 201 passes through clay conveyance conduit of clay inlet 201
203 are arranged in parallel, and the outer end of clay conveyance conduit 203 is connected with clay external tapping 204, the external clay pump of clay external tapping 204
Stand 13；
Excavation blind area flushing system 3 includes water under high pressure inlet 301, high pressure water control valve 302, the and of high-pressure water pipeline 303
Water under high pressure external tapping 304, the water under high pressure inlet 301 is fixedly installed on the middle part of development machine anterior shield dividing plate 4 correspondence cutterhead and excavated
Blind zone position, the outlet of water under high pressure inlet 301 is connected with the Tu Cang of development machine, and each water under high pressure inlet 301 is connected one
High pressure water control valve 302, and each water under high pressure inlet 301 is arranged in parallel by high-pressure water pipeline 303, high-pressure water pipeline 303
Outer end is connected with water under high pressure external tapping 304, the external pump works of water under high pressure external tapping 304；The cutterhead improved system 1, clay
The collaboration of injected system 2 and excavation blind area flushing system 3 works independently by master control mechanism controls.
The top of anterior shield dividing plate 4 of development machine sets 4 clay inlets 201, and the outlet of this 4 clay inlets 201
Place is tiltedly installed with guiding gutter 6, and the top of the guiding gutter 6 is extended at the otch ring 7 of development machine anterior shield, and guiding gutter 6 is solid
Surely it is arranged at the top of development machine anterior shield on the clapboard 8 of knife cutting blind area.
Pressure sensing is fixedly installed on the top shield shell 9 of the rear side of clay inlet 201 at the top of development machine anterior shield dividing plate 4
Device 10, the signal of pressure sensor 10 feeds back to master control mechanism, when pressure is more than 2.5bar, master control mechanism controls clay injection system
System 2 is automatically stopped work, and when development machine internal pressure is less than 0.5bar, master control mechanism controls clay injected system is opened automatically
It is dynamic.
The rear portion of the water under high pressure inlet 301, which is hinged, is fixedly installed spherical hinging mechanism 11, the globular hinge machine
Structure 11 includes being hinged housing 111 and globular hinge first 112, and the globular hinge first 112, which is hinged to be arranged at, to be hinged in housing 111,
The external high-pressure water pipeline 303 of water inlet end and high pressure water control valve 302 of globular hinge first 112, the central shaft of spherical hinging mechanism
Can 20 ° of maximum rotation laterally in ring optional position.
Schematical embodiment of the invention is the foregoing is only, the scope of the present invention is not limited to, it is any
Equivalent variations and modification that those skilled in the art is made on the premise of present inventive concept and principle is not departed from, all should belong to
In the scope of protection of the invention.
Claims (5)
1. a kind of sediment improvement system of multi-cutter-disk development machine, including cutterhead improved system, clay injected system, the punching of excavation blind area
Brush system and master control mechanism, it is characterised in that：The cutterhead improved system includes multiple cutterhead unit improvement machines being arranged in parallel
Structure, each cutterhead of multi-cutter-disk development machine is provided with a set of independent cutterhead unit improvement mechanism, the cutterhead of each cutterhead
Unit improvement mechanism is separate, and each cutterhead cutterhead unit improvement mechanism by master control mechanism independent control；The knife
Disk unit improvement mechanism includes external interface, modifying agent ascending pipe, Self controlling valve, center nozzle injection channel, periphery spout note
Enter passage, cutter head center spout and cutterhead periphery spout, the center nozzle injection channel and periphery spout injection channel is in parallel
Set, modifying agent ascending pipe one end connects with external interface, the modifying agent ascending pipe other end respectively with center nozzle injection channel
Connected with periphery spout injection channel, and automatic control has been arranged in series on center nozzle injection channel and periphery spout injection channel
Valve and check valve；Center nozzle injection channel corresponds to and connects cutter head center spout respectively with periphery spout injection channel end
With cutterhead periphery spout, between the Self controlling valve and check valve of the center nozzle injection channel or periphery spout injection channel
It is arranged in parallel the side modifying agent ascending pipe of a band Self controlling valve；When development machine cutter diameter is not more than 1.2m, development machine
Cutterhead periphery spout is only set on cutterhead；When development machine cutterhead is more than 1.2m, cutter head center spray is provided with development machine cutterhead
Mouth and cutterhead periphery spout；
The clay injected system includes clay inlet, clay control valve, clay conveyance conduit and clay external tapping, described viscous
Native inlet is fixedly installed at the top of the anterior shield dividing plate of development machine respectively, on anterior shield dividing plate above development machine slag-drip opening and anterior shield every
Plate two bottom sides, and the outlet of clay inlet connects with the Tu Cang of development machine, each clay inlet is connected a clay
Control valve, and each clay inlet is arranged in parallel by clay conveyance conduit, clay conveyance conduit outer end and clay are external
Mouth connection, the external clay pumping plant of clay external tapping；
It is external that excavation blind area flushing system includes water under high pressure inlet, high pressure water control valve, high-pressure water pipeline and water under high pressure
Mouthful, the water under high pressure inlet is fixedly installed on correspondence cutterhead in the middle part of development machine anterior shield dividing plate and excavates blind zone position, water under high pressure note
Inlet port is connected with the Tu Cang of development machine, and each water under high pressure inlet is connected a high pressure water control valve, and each high pressure
Water inlet is arranged in parallel by high-pressure water pipeline, and high-pressure water pipeline outer end is connected with water under high pressure external tapping, and water under high pressure is external
The external pump works of mouth；The cutterhead improved system, the collaboration of clay injected system and excavation blind area flushing system or independent work
Make by master control mechanism controls.
2. the sediment improvement system of multi-cutter-disk development machine according to claim 1, it is characterised in that：The anterior shield of development machine every
4 clay inlets are set at the top of plate, and the exit of this 4 clay inlets is tiltedly installed with guiding gutter, the guiding gutter
Top extend at the otch ring of development machine anterior shield, and guiding gutter is fixedly installed on knife cutting blind area at the top of development machine anterior shield
Clapboard on.
3. the sediment improvement system of multi-cutter-disk development machine according to claim 2, it is characterised in that：Development machine anterior shield dividing plate
Pressure sensor is fixedly installed on top shield shell on rear side of the clay inlet at top, pressure sensor signal feeds back to master control
Mechanism.
4. the sediment improvement system of multi-cutter-disk development machine according to claim 3, it is characterised in that：Pressed inside development machine
When power is more than 2.5bar, master control mechanism controls clay injected system is automatically stopped work, when development machine internal pressure is less than
During 0.5bar, master control mechanism controls clay injected system automatic start.
5. the sediment improvement system of the multi-cutter-disk development machine according to claim 1 ~ 4 any one claim, its feature
It is：The rear portion of water under high pressure inlet is fixedly installed spherical hinging mechanism, the spherical hinging mechanism include being hinged housing and
Globular hinge head, the globular hinge head, which is hinged to be arranged at, to be hinged in housing, the external high-pressure water pipe of water inlet end of globular hinge head
Road and high pressure water control valve.
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| CN201710510914.6A CN107143342B (en) | 2017-06-29 | 2017-06-29 | Muck improvement system of multi-cutter-head tunneling machine |
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| CN201710510914.6A CN107143342B (en) | 2017-06-29 | 2017-06-29 | Muck improvement system of multi-cutter-head tunneling machine |
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| CN107143342A true CN107143342A (en) | 2017-09-08 |
| CN107143342B CN107143342B (en) | 2023-03-17 |
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| CN110219659A (en) * | 2019-06-20 | 2019-09-10 | 中铁隧道局集团有限公司 | A kind of rock tunnel(ling) machine using high pressure water broken rock |
| CN110552705A (en) * | 2019-05-27 | 2019-12-10 | 中铁十八局集团第四工程有限公司 | Automatic improvement method for residual soil during tunneling of earth pressure balance shield tunnel |
| CN111997645A (en) * | 2020-09-10 | 2020-11-27 | 中铁工程装备集团有限公司 | Multi-cutter-head tunneling machine |
| CN112523761A (en) * | 2020-12-04 | 2021-03-19 | 中铁工程装备集团有限公司 | Non-circular tunnel boring machine, entry driving machine are with supplementary excavation device |
| CN113756814A (en) * | 2021-08-09 | 2021-12-07 | 北京新铁瑞达科技发展有限公司 | Preparation control method, device and equipment of muck modifier and storage medium |
| CN113790059A (en) * | 2021-08-31 | 2021-12-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multi-excavation system of rectangular pipe jacking machine |
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| CN110552705A (en) * | 2019-05-27 | 2019-12-10 | 中铁十八局集团第四工程有限公司 | Automatic improvement method for residual soil during tunneling of earth pressure balance shield tunnel |
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| CN113790059A (en) * | 2021-08-31 | 2021-12-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multi-excavation system of rectangular pipe jacking machine |
| CN113790059B (en) * | 2021-08-31 | 2024-05-14 | 厦门厦工中铁重型机械有限公司 | Automatic control method for multiple excavation systems of rectangular pipe jacking machine |
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