CN105863662A - Tunnel boring machine tunneling method and trenchless tunnel boring machine applying same - Google Patents
Tunnel boring machine tunneling method and trenchless tunnel boring machine applying same Download PDFInfo
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- CN105863662A CN105863662A CN201610063389.3A CN201610063389A CN105863662A CN 105863662 A CN105863662 A CN 105863662A CN 201610063389 A CN201610063389 A CN 201610063389A CN 105863662 A CN105863662 A CN 105863662A
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- 238000000034 method Methods 0.000 title claims abstract description 64
- 230000005641 tunneling Effects 0.000 title claims abstract description 29
- 238000009412 basement excavation Methods 0.000 claims description 45
- 239000011435 rock Substances 0.000 claims description 30
- 230000035939 shock Effects 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 description 8
- 238000005265 energy consumption Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 241001063191 Elops affinis Species 0.000 description 2
- 235000002756 Erythrina berteroana Nutrition 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- HKPHPIREJKHECO-UHFFFAOYSA-N butachlor Chemical compound CCCCOCN(C(=O)CCl)C1=C(CC)C=CC=C1CC HKPHPIREJKHECO-UHFFFAOYSA-N 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000000153 supplemental effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001737 promoting effect Effects 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
- E21D9/10—Making by using boring or cutting machines
-
- 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers
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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 a tunnel boring machine tunneling method and a trenchless tunnel boring machine applying the same. The method mainly comprises: a step 1, an excavating cutterhead carries out tunneling of a tunnel boring machine for one propelling stroke at a to-be-excavated region to form a point tunneling region; a step 2, the excavating cutterhead changes tracks and keeps on carrying out tunneling of the tunnel boring machine for one propelling stroke according to the step 1 to form a next point tunneling region; a step 3, the step 2 is repeatedly completed for many times to form a plurality of point tunneling regions, the plurality of point tunneling regions are connected to form a first middle tunneling region; a step 4, the excavating cutterhead changes tracks in the whole to-be-excavated region, and completes the steps 1, 2 and 3 in sequence to form a next middle tunneling region; and a step 5, the step 4 is repeatedly completed for many times to form a plurality of middle tunneling regions, and the plurality of middle tunneling regions are connected to complete surface tunneling work of a whole tunneling region. According to the method, frontal resistance can be reduced, and the structure of the whole tunneling system can be simplified.
Description
Technical field
Present invention relates particularly to a kind of rock tunnel(ling) machine driving method and the no-dig technique rock tunnel(ling) machine of application the method.
Background technology
Rock tunnel(ling) machine is metro construction and piping lane construction medium velocity is fast, quality good, security performance is high advanced technology equipment.Use the running tunnel of rock tunnel(ling) machine construction, can accomplish soil body weak disturbance, do not affect above ground structure and traffic, reduce a large amount of removals of ground, underground.The technological development of this equipment and application, be respectively provided with the most wide prospect in various countries' underground engineering field.
Rock tunnel(ling) machine is the main equipment of non-tunneling construction, its driving method is: use diameter to excavate slightly larger than the machete disc spins of machine external diameter, big uniform many shoveling cutters of cutterhead, synchronize " eating soil ", its soil slag via Tu Cang, transported to earth's surface by conveying machinery, the technical characteristic of this conventional method is multitool coplanar, synchronize rotation digs, strongly pushing tow, strength rotate, Tu Cang balance, conveying muck haulage.
Existing no-dig technique tunnel piercing is equipped, generally use diameter spiral slightly larger than the machete in a cross section excavate into, there is Tu Cang more, when whole cutterhead twists, need huge to drive square torsion and huge driving thrust, make whole rotation excavate into during have that energy consumption is big and the defect such as driving speed is low, and the adaptation to difference geology operating modes is limited in one's ability, running into ragstone in mining process and generally require shut-down explosion, engineering is paid in impact.To this end, for the tunneling equipment promoting driving speed, adaptation quickly propels, it is necessary to the driving method of equipment is improved.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, it is provided that a kind of rock tunnel(ling) machine driving method, be suitable for low thrust development machine, cutter plate driver moment of torsion is little, and energy consumption is little, and driving speed is fast, it is simple to simplify overall driving system structure.
A kind of rock tunnel(ling) machine driving method that the present invention describes, it is characterized in that: it uses and can tunnel relative to the excavation cutterhead that the head of development machine moves, driving region is divided into driving region in the middle of several, several middle driving regions described to be spliced into overall driving region by this method for digging；
The method comprises the following steps:
Step 1: excavate cutterhead and carry out the driving of propelling stroke amount of development machine at excavation regions, forms some driving region；
Step 2: excavate cutterhead and carry out becoming rail in overall excavation regions, proceed the driving of propelling stroke amount of development machine by step 1, forms next one point driving region；
Step 3: be repeatedly performed step 2 several times, forms several some driving regions, several some driving regions described first the middle driving region being connected；
Step 4: excavate cutterhead and carry out becoming rail in overall excavation regions, sequentially complete step 1, step 2 and step 3, form driving region in the middle of next；
Step 5: be repeatedly performed step 4 several times, forms driving region in the middle of several, and several middle driving regions described have been connected overall driving region by the face headwork of propelling stroke amount of development machine.
During concrete tunneling construction, the density in middle driving region is rationally set, is can to realize overall driving region completely after completing above-mentioned steps 5 by the face headwork of propelling stroke amount of development machine.
After completing above-mentioned steps 5, as driving regions are connected and still suffer from missed areas and failed overall driving region by the face headwork of propelling stroke amount of development machine in the middle of all, then by step 1 or by step 1 and the combination of step 2, by one or several some driving regions, holiday realization is carried out by propelling stroke amount of development machine the face headwork of supplemental stroke amount.
Rock tunnel(ling) machine driving method of the present invention, they can be by three kinds of cutters realizations:
1, described excavation cutterhead is jump bit, and in described some driving region forming process, jump bit completes to tunnel a driving region by shock；In step 2, jump bit tunnels after region excavates at the point completing previous step, returns and becomes rail and carries out the driving in next some driving region again.Period, same some driving region is tunneled by having clashed into back and forth, is return in reverse direction, then carry out shock action next time after clashing into this some driving region each time by jump bit.
2. excavating cutterhead is the cutting tool with face cutting edge, this cutting tool carries out end face extruding rotary cutting by end face sword to a driving region, after this cutting tool completes the stock removal action to previous driving region, reversely return, then become rail move ahead to later point driving region carry out stock removal action.
3. excavating cutterhead described in is the cutting tool with double-sided blade, after this cutting tool completes first some driving region is carried out end face extruding rotational cutting motion by the blade of end face, directly become rail and follow-up some driving region is carried out side milling action by the blade of side.
Rock tunnel(ling) machine driving method of the present invention, it is in specific implementation process, can take following two kinds of forms for the formation in driving region, centre:
1. the cutterhead that excavates in step 2 described in carries out tunneling the center in the region circumferencial direction change rail as the center of circle, driving region composition annular driving region in the middle of each formed in step 3 and step 4 with entirety in excavation regions；The cutterhead that excavates in described step 4 carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions.
2. the cutterhead that excavates in step 2 described in carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions, and in the middle of each formed in step 3 and step 4, driving region constitutes the linear driving region of radial direction；The cutterhead that excavates in described step 4 carries out tunneling the center in the region circumferencial direction change rail as the center of circle with entirety in excavation regions.
Furthermore, based on technique scheme, rock tunnel(ling) machine driving method of the present invention, in concrete work progress, can refine with regard to concrete steps: the next some driving region formed in step 2 is tunneled region with the point of previous step and is connected；The next middle driving region formed in step 4 is connected with driving region in the middle of upper.
Additionally, rock tunnel(ling) machine driving method described in any of the above-described technical scheme, the primary feed development end of this excavation cutterhead is less than development machine radius, is more beneficial for being to realize zonule to form overall driving, it is achieved be rapidly completed the driving in cross section, tunnel with less digging force.
Simultaneously, present invention also offers a kind of no-dig technique rock tunnel(ling) machine, it includes head, installing the excavation cutterhead that can move relative to head on head, described excavation cutterhead completes entirety driving region by the face headwork of propelling stroke amount of development machine according to the driving method described in any of the above-described technical scheme.
The invention has the beneficial effects as follows: the present invention uses and can tunnel relative to the excavation cutterhead that the head of development machine moves, and driving region is divided into driving region in the middle of several, by being formed middle driving region by a driving region, comprehensive driving of final overall development end is formed again by driving region, centre, form some anchor ring or the driving method of point-line-surface, improve conventional cumbersome big cutterhead multitool synchronize rotation excavate into defect, the resistance and the cutterhead rotary power that reduce front decline, it is suitable for low thrust development machine, cutter plate driver moment of torsion is little, energy consumption is little, driving speed is fast, it is easy to simplify overall driving system structure, effectively realize development machine entirety lightweight, energy-saving and emission-reduction significantly, effectively solve original existence driving thrust big, cutter plate driver moment of torsion is big, energy consumption is big, the defects such as driving speed is low.
Accompanying drawing explanation
Fig. 1 is the driving track schematic diagram of preferred embodiment.
Fig. 2 is the driving track schematic diagram of the second embodiment of the present invention.
Fig. 3 is the driving principle schematic diagram of excavation cutterhead of the present invention.
Fig. 4 is the excavation cutterhead of the present invention working state structure schematic diagram in rock tunnel(ling) machine.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, and the most same or similar label represents same or similar element or has the element of same or like function.The embodiment described below with reference to accompanying drawing is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
As shown in Figure 1, a kind of rock tunnel(ling) machine driving method that the present invention describes, it is highly preferred embodiment of the present invention, it uses and can tunnel relative to the excavation cutterhead that the head of development machine moves, driving region is divided into driving region in the middle of several by this method for digging, and in the middle of several, driving region is spliced into overall driving region；
The method comprises the following steps:
Step 1: excavate cutterhead and carry out the driving of propelling stroke amount of development machine at excavation regions, form some driving region, period, the driving of propelling stroke amount of development machine is failed to complete in the case of a penetration of a cutting tool as excavated cutterhead, so, this excavation cutterhead can be implemented in this some driving region and repeatedly tunnel, until completing the driving of propelling stroke amount of development machine, enters back into next step.
Step 2: excavate cutterhead and carry out becoming rail in excavation regions, then proceed the driving of propelling stroke amount of development machine by step 1, forms the next some driving region that the some driving region with previous step is connected；
Step 3: be repeatedly performed step 2 several times, forms several some driving regions, several some driving regions described first the middle driving region being connected；
Step 4: excavate cutterhead and carry out becoming rail in overall excavation regions, sequentially complete step 1, step 2 and step 3, forms the next middle driving region being connected with the next one middle driving region with driving region in the middle of upper；
Step 5: be repeatedly performed step 4 several times, forms driving region in the middle of several, and several middle driving regions described have been connected overall driving region by the face headwork of propelling stroke amount of development machine.
During concrete tunneling construction, the density in middle driving region is rationally set, is can to realize overall driving region completely after completing above-mentioned steps 5 by the face headwork of propelling stroke amount of development machine.
After completing above-mentioned steps 5, as driving regions are connected and still suffer from missed areas and failed overall driving region by the face headwork of propelling stroke amount of development machine in the middle of all, then by step 1 or by step 1 and the combination of step 2, by one or several some driving regions, holiday realization is carried out by propelling stroke amount of development machine the face headwork of supplemental stroke amount.
In the present embodiment, formation for driving region, centre can take following construction: the cutterhead that excavates in above-mentioned steps 2 carries out tunneling the center in the region circumferencial direction change rail as the center of circle with entirety in excavation regions, this circumferencial direction is except the same circumferencial direction shown in Fig. 1, the circumference that also can realize different radii becomes " Z " type change rail of rail or circumference so that in the middle of each ultimately formed in step 3 and step 4, driving region composition annular tunnels region；Now, become rail mode with circumferencial direction to coordinate, the cutterhead that excavates in step 4 carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions, define formation point, ring, the driving method in face with this, form the form of ring-type covering and then constitute the driving to entirety driving region.
Additionally, rock tunnel(ling) machine driving method described in any of the above-described technical scheme, the primary feed development end of this excavation cutterhead is less than development machine radius, is more beneficial for being to realize zonule to form overall driving, it is achieved be rapidly completed the driving in cross section, tunnel with less digging force.
The second embodiment of rock tunnel(ling) machine driving method of the present invention:
Shown in Figure 2, the present embodiment is consistent with the basic step of above-mentioned most preferred embodiment, the change rail form of slightly different step 3 and step 4, specifically: the cutterhead that excavates in step 2 carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions, the form that this center position moving closer to or being gradually distance from overall driving region becomes rail is not limited to the straight line shown in Fig. 2 and becomes rail form, it may also is that implement to become rail or the change rail of " Z " type radially on different radiuses, as long as meeting the center position being to move closer to or be gradually distance from overall driving region to become rail, this change rail mode makes each the middle driving region formed in step 3 and step 4 constitute linear driving region radially；The cutterhead that excavates in described step 4 carries out tunneling the center in the region circumferencial direction change rail as the center of circle with entirety in excavation regions, defines the driving method forming point, line, surface, the form covered by sector and then the composition driving to entirety driving region with this.
In above-described embodiment, according to concrete operating mode, entirety can also be tunneled region (i.e. tunnel piercing end face) and be divided into each several subregions for the certain number of degrees of circumferencial direction (such as 90 degree or 180 degree), sequentially each subregion is implemented according to above-mentioned driving method driving comprehensively, is finally completed the headwork to entirety driving region.
Above example is embodied rock tunnel(ling) machine driving method of the present invention, and it can be realized by three kinds of cutters:
1, excavating cutterhead is the jump bit of circular section, can use the down-hole hammer in geological drilling apparatus.In described some driving region forming process, jump bit completes to tunnel a driving region by shock, stays the next driving hole with jump bit diameter.Period, same some driving region is tunneled (" eating soil " of being i.e. commonly called as) by having clashed into back and forth, is return in reverse direction, then carry out shock action next time after clashing into this some driving region each time by jump bit.In order to avoid producing missed areas, the shock tunneling method of jump bit uses some driving region part congruent manner, the most Next driving region partly overlaps with upper some driving region, and the part having more is actual driving (the eating soil) part that crescent constitutes next one point driving region.
2. this excavation cutterhead is the discoid cutting tool with face cutting edge, this cutting tool is to arrange cutting edge at front end face, its cutting principle is shearing force cutting, such cutting tool is conventional end face process tool in machinery knives field, is, by end face sword, a driving region is carried out end face extruding rotary cutting during the work of this cutter.When development machine tunneling construction, after this cutting tool completes the stock removal action to previous driving region, staying the next driving hole with cutting tool diameter, subsequently reverse direction is return, then becomes rail and move ahead later point driving region is carried out stock removal action.Period, in order to avoid producing missed areas, the tunneling method of cutting tool uses some driving region part congruent manner, the most Next driving region to partly overlap with upper some driving region, and the part having more is actual driving (the eating soil) part that crescent constitutes next one point driving region.
3. excavating cutterhead described in is the cutting tool with double-sided blade, such cutter is provided with blade in end face and side, its cutting principle is shearing force cutting, by end face blade, the front of cutting is carried out rotary squeezing cutting, by side blade, cutting zone being carried out milling, such cutting tool is conventional machinery process tool in machinery knives field.In this driving method, after this cutting tool completes first some driving region is carried out end face extruding rotational cutting motion by the blade of end face, directly become rail and follow-up some driving region is carried out side milling action by the blade of side.
Above-mentioned driving method, can be driven by driving means as shown in Figure 3, this driving means includes the center pivoted frame 2 around development machine middle shaft rotation, longitudinal axis 3 it is provided with on center pivoted frame 2, the zigzag tread patterns part 4 that can move up and down it is provided with along longitudinal axis 3 on this longitudinal axis 3, this zigzag tread patterns part 4 can be hydraulic jack, cylinder, electric elevator or linkage, the feeding telescopic drive part 5 having for driving excavation cutterhead to move forward and backward is connected on this zigzag tread patterns part 4, excavate cutterhead along with flexible before and after feeding telescopic drive part 5, above-mentioned jump bit can be realized or there is the moving back and forth in headwork of the discoid cutting tool of face cutting edge, or realize being delivered to the cutting tool with double-sided blade tunnel region.Cooperate work finally by center pivoted frame 2, longitudinal axis 3, zigzag tread patterns part 4 and feeding telescopic drive part 5, the point, line, surface driving method of the point of above-mentioned most preferred embodiment, ring, face or the second embodiment can be realized.
Except above-mentioned driving method, common mechanical designer or mechanical operator, the particularly designer of lathe or operative employee, all can easily or other type of drive, as long as realizing unitary rotation, realizing moving up and down, realizing elastic feeding immediately in the mechanism moved up and down on the basis of unitary rotation, these can be conventional common mechanical driving member.
Simultaneously, based on above-mentioned driving method, present invention also offers a kind of no-dig technique rock tunnel(ling) machine, it includes head 6, installing the excavation cutterhead 7 that can move relative to head on head 6, described excavation cutterhead 7 completes entirety driving region by the face headwork of propelling stroke amount of development machine according to the driving method described in any of the above-described technical scheme.Period, the slag thing (e.g. earth, rubble etc.) that excavation cutterhead 7 produces when tunneling is carried out by Residue extraction pipeline 8 and is given either continuously or intermittently discharged to ground surface.The deslagging mode of Residue extraction pipeline 8 can carry out deslagging by modes such as screw rod, conveyer belt or high pressure draughts.
To sum up, the present invention uses and can tunnel relative to the excavation cutterhead that the head of development machine moves, and driving region is divided into driving region in the middle of several, by being formed middle driving region by a driving region, comprehensive driving of final overall development end is formed again by driving region, centre, form some anchor ring or the driving method of point-line-surface, improve conventional cumbersome big cutterhead multitool synchronize rotation excavate into defect, the resistance and the cutterhead rotary power that reduce front decline, it is suitable for low thrust development machine, cutter plate driver moment of torsion is little, energy consumption is little, driving speed is fast, it is easy to simplify overall driving system structure, effectively realize development machine entirety lightweight, energy-saving and emission-reduction significantly, effectively solve original existence driving thrust big, cutter plate driver moment of torsion is big, energy consumption is big, the defects such as driving speed is low.
Claims (10)
1. a rock tunnel(ling) machine driving method, it is characterized in that: it uses and can tunnel relative to the excavation cutterhead that the head of development machine moves, driving region is divided into driving region in the middle of several, several middle driving regions described to be spliced into overall driving region by this method for digging；
The method comprises the following steps:
Step 1: excavate cutterhead and carry out the driving of propelling stroke amount of development machine at excavation regions, forms some driving region；
Step 2: excavate cutterhead and carry out becoming rail in overall excavation regions, proceed the driving of propelling stroke amount of development machine by step 1, forms next one point driving region；
Step 3: be repeatedly performed step 2 several times, forms several some driving regions, several some driving regions described first the middle driving region being connected；
Step 4: excavate cutterhead and carry out becoming rail in overall excavation regions, sequentially complete step 1, step 2 and step 3, form driving region in the middle of next；
Step 5: be repeatedly performed step 4 several times, forms driving region in the middle of several, and several middle driving regions described have been connected overall driving region by the face headwork of propelling stroke amount of development machine.
Rock tunnel(ling) machine driving method the most according to claim 1, it is characterised in that: described excavation cutterhead is jump bit, and in described some driving region forming process, jump bit completes to tunnel a driving region by shock；In step 2, jump bit tunnels after region excavates at the point completing previous step, returns and becomes rail and carries out the driving in next some driving region again.
Rock tunnel(ling) machine driving method the most according to claim 2, it is characterized in that: same some driving region is tunneled by described jump bit by having clashed into back and forth, return in reverse direction after each time this some driving region being clashed into, then carry out shock action next time.
Rock tunnel(ling) machine driving method the most according to claim 1, it is characterized in that: described excavation cutterhead is the cutting tool with face cutting edge, this cutting tool carries out end face extruding rotary cutting by end face sword to a driving region, after this cutting tool completes the stock removal action to previous driving region, reversely return, then become rail move ahead to later point driving region carry out stock removal action.
Rock tunnel(ling) machine driving method the most according to claim 1, it is characterized in that: described excavation cutterhead is the cutting tool with double-sided blade, after this cutting tool completes first some driving region is carried out end face extruding rotational cutting motion by the blade of end face, directly become rail and follow-up some driving region is carried out side milling action by the blade of side.
6. according to the rock tunnel(ling) machine driving method described in claim 1 to 5 any claim, it is characterized in that: the cutterhead that excavates in described step 2 carries out tunneling the center in the region circumferencial direction change rail as the center of circle, driving region composition annular driving region in the middle of each formed in step 3 and step 4 with entirety in excavation regions；The cutterhead that excavates in described step 4 carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions.
7. according to the rock tunnel(ling) machine driving method described in claim 1 to 5 any claim, it is characterized in that: the cutterhead that excavates in described step 2 carries out moving closer to or being gradually distance from the center position change rail in overall driving region in excavation regions, and in the middle of each formed in step 3 and step 4, driving region constitutes the linear driving region of radial direction；The cutterhead that excavates in described step 4 carries out tunneling the center in the region circumferencial direction change rail as the center of circle with entirety in excavation regions.
8. according to the rock tunnel(ling) machine driving method described in claim 1 to 5 any claim, it is characterized in that: the next driving region of putting formed in described step 2 is connected with the some driving region of previous step, and the next middle driving region formed in described step 4 is connected with a upper middle driving region.
9. according to the rock tunnel(ling) machine driving method described in claim 1 to 5 any claim, it is characterised in that: the primary feed development end of described excavation cutterhead is less than development machine radius.
10. a no-dig technique rock tunnel(ling) machine, it is characterized in that: it includes head, installing the excavation cutterhead that can move relative to head on head, described excavation cutterhead completes entirety driving region by the face headwork of propelling stroke amount of development machine according to the driving method described in claim 1 to 9 any claim.
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| CN113006811A (en) * | 2021-03-19 | 2021-06-22 | 中铁工程装备集团有限公司 | Composite rock breaking construction method |
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| CN111075467A (en) * | 2019-12-26 | 2020-04-28 | 中联重科股份有限公司 | Tunnel construction method of heading machine |
| CN113006811A (en) * | 2021-03-19 | 2021-06-22 | 中铁工程装备集团有限公司 | Composite rock breaking construction method |
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