CN115288714A - Small-turning compact open-type full-face rock tunneling machine - Google Patents
Small-turning compact open-type full-face rock tunneling machine Download PDFInfo
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- CN115288714A CN115288714A CN202210967834.4A CN202210967834A CN115288714A CN 115288714 A CN115288714 A CN 115288714A CN 202210967834 A CN202210967834 A CN 202210967834A CN 115288714 A CN115288714 A CN 115288714A
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- 239000011435 rock Substances 0.000 title claims abstract description 54
- 230000005641 tunneling Effects 0.000 title description 13
- 238000005553 drilling Methods 0.000 claims abstract description 53
- 239000002893 slag Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 9
- 230000002787 reinforcement Effects 0.000 claims abstract 2
- 230000013011 mating Effects 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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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
- E21D9/06—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
- E21D9/087—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 with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
- E21D20/003—Machines for drilling anchor holes and setting anchor bolts
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0621—Shield advancing devices
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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
- E21D9/06—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
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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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/0692—Cutter drive shields
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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
- E21D9/06—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
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The application discloses tight open-type full-face rock entry driving machine of little turn includes: the main beam is provided with a main drive and a shoe supporting propulsion system capable of driving the main drive to move; the rear matching system is provided with a second anchor rod drilling machine system capable of carrying out anchor rod supporting; a cutter head is arranged in front of the main drive, and the main drive can drive the cutter head to rotate; a slag discharging system capable of conveying rock slag is arranged in the cutter head; a shield which can be tightly attached to the wall of the hole is arranged on the periphery of the main driving device; a first anchor rod drilling machine system capable of carrying out anchor rod supporting and an advanced drilling machine system capable of carrying out drilling grouting reinforcement on the front of the cutter head are arranged on the periphery of the supporting shoe propelling system; and a rear support capable of supporting the hole wall tightly is arranged between the main beam and the rear matching system. The small-turning compact open type full-face rock tunnel boring machine is compact in structure of the main beam, the total length of the main beam is shortened, the rock tunnel boring machine can adapt to small-turning rock tunnel excavation, and the application range of the rock tunnel boring machine is widened.
Description
Technical Field
The application relates to the technical field of tunnel construction, in particular to a small-turning compact open type full-face rock heading machine.
Background
Rock tunnel excavation methods are developed for a long time, two excavation methods of an artificial drilling and blasting method and a rock tunneling machine are mainly adopted, and the construction process is mature. Among them, the full face rock Tunnel Boring Machine (TBM) is widely used in recent years in domestic due to its high construction efficiency, safety, environmental protection, high degree of mechanization, and low labor intensity.
The main beam structure of the existing open-type TBM is often longer due to the space required by a supporting system (a steel arch assembling system, an advance drilling machine system and an anchor rod drilling machine system), and the length of the main beam is up to 16m in the case of a 6 m-level open-type TBM. Due to the overlong main beam structure, the empty-roof distance is greatly increased, and the risk of collapse in a supporting area is increased; more importantly, the turning radius of the open-type TBM is severely restricted by the overlong beam structure, and the common open-type TBM cannot meet the requirement of small turning of the tunnel at all.
Therefore, how to provide a small-turning compact open type full-face rock heading machine which solves the technical problems is a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The utility model aims at providing a tight turn compact open-type full section rock tunnelling machine, girder compact structure shortens girder total length for the rock tunnelling machine can adapt to the excavation of tight turn rock tunnel, improves rock tunnelling machine's application scope.
In order to achieve the purpose, the application provides a small-turning compact open-type full-face rock tunnel boring machine which comprises a main beam and a rear matching system connected to the rear of the main beam;
the main beam is provided with a main drive and a shoe supporting propulsion system, the shoe supporting propulsion system is connected with the main drive, and the shoe supporting propulsion system can drive the main drive to move;
the rear mating system is provided with a second anchor rod drilling machine system which can carry out anchor rod support;
a cutter head is arranged in front of the main drive, and the main drive can drive the cutter head to rotate; a slag discharging system is arranged in the cutter head and can convey rock slag; a shield is arranged on the periphery of the main driving device and can be tightly attached to the wall of the hole; a first anchor rod drilling machine system and an advanced drilling machine system are arranged on the periphery of the supporting shoe propulsion system, the first anchor rod drilling machine system can be used for carrying out anchor rod supporting, and the advanced drilling machine system can be used for carrying out drilling, grouting and reinforcing on the front of the cutter head; and a rear support is arranged between the main beam and the rear matching system and can tightly support the hole wall.
In some embodiments, the shield includes a top shield, a first side shield, a second side shield, a first lap shield, a second lap shield, and a bottom shield for adhering to different locations of the wall of the hole, the first side shield and the second side shield being located on both sides of the top shield and the bottom shield, the first lap shield and the second lap shield being located between the top shield and the first side shield and between the top shield and the second side shield, respectively.
In some embodiments, the advanced drilling machine system is located behind the shield, and the first and second lap shields are each provided with an advanced drilling machine prepared hole for the advanced drilling machine system to perform advanced drilling operation after passing through.
In some embodiments, the shoe propulsion system comprises:
the supporting shoes are used for clinging to the wall of the hole;
the unilateral saddle is arranged on the main beam;
the shoe supporting oil cylinder is connected with the supporting shoes and is used for driving the supporting shoes to tightly support the wall of the hole; and
the propelling oil cylinder is connected with the main drive and is used for driving the main drive to move when the supporting shoes tightly support the tunnel wall;
the combination of the supporting shoes and the supporting shoe oil cylinders is at least two groups, and the at least two groups are distributed on two sides of the main beam.
In some embodiments, the shield further comprises a torque cylinder, the torque cylinder is connected with the shoe supporting cylinder, the torque cylinder is used for driving the shoe supporting cylinder to move, and the driving direction of the torque cylinder is different from the driving direction of the shoe supporting cylinder in the tunnel section.
In some embodiments, a main push cylinder ear seat is arranged behind the main drive, and the push cylinder is hinged with the main push cylinder ear seat.
In some embodiments, the first jumbolter system is arranged radially along a tunnel section, and a slew reducer is provided on a substructure of the first jumbolter system to enable the first jumbolter system to perform work in a radial region.
In some embodiments, the first jumbolter system is disposed on a side of the thrust cylinder periphery and the look-ahead drill system is disposed on a side of the shoe cylinder periphery.
In some embodiments, the main beam is gradually lowered from the front to the rear structure, i.e. its upper surface at the rear is lower than the upper surface at the front.
In some embodiments, the main beam comprises a first beam body and a second beam body connected and gradually decreases from the first beam body to the second beam body; the main drive is installed to the first roof beam body, the second roof beam body is installed prop boots advancing system.
Compared with the prior art, the small-turning compact open type full-face rock heading machine comprises a cutter head, a slag discharging system, a shield, a main drive, a first anchor rod drilling machine system, a main beam, an advanced drilling machine system, a supporting shoe propelling system, a rear support, a second anchor rod drilling machine system and a rear matching system. The rear support system is connected to the rear of the main beam, the main drive and the supporting shoe propulsion system are installed on the main beam, the supporting shoe propulsion system is connected with the main drive, the second jumbolter system is installed on the rear support system, the cutter head is installed in the front of the main drive, the slag tapping system is installed in the cutter head, the shield is installed on the periphery of the main drive, the first jumbolter system and the forepoling system are installed on the periphery of the supporting shoe propulsion system, and the rear support is installed between the rear of the main beam and the rear support system. The main beam of the small-turning compact open-type full-face rock tunnel boring machine is compact in structure, the total length of the main beam is shortened, the rock tunnel boring machine can adapt to the excavation of small-turning rock tunnels, and the application range of the rock tunnel boring machine is widened.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tight-turning compact open-type full-face rock tunnel boring machine provided in an embodiment of the present application;
FIG. 2 isbase:Sub>A schematic view of A-A in FIG. 1;
fig. 3 is a schematic structural diagram of a shield according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a main beam provided in an embodiment of the present application.
Wherein:
1-cutter head, 2-slag discharging system, 3-shield, 4-main drive, 5-first jumbolter system, 6-main beam, 7-advanced drill system, 8-shoe supporting propulsion system, 9-rear support, 10-second jumbolter system, 11-rear matching system, etc,
301-a top shield, 302-a first side shield, 303-a second side shield, 304-a first overlap shield, 305-a second overlap shield, 306-a bottom shield, 307-a preformed hole of an advanced drilling machine, 401-a main push oil cylinder lug seat, 601-a first beam body, 602-a second beam body, 801-a supporting shoe, 802-a supporting shoe oil cylinder, 803-a torque oil cylinder, 804-a single-side saddle and 805-a propulsion oil cylinder.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In order to enable those skilled in the art to better understand the scheme of the present application, the present application will be described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 4, fig. 1 isbase:Sub>A schematic structural diagram ofbase:Sub>A tight-turning compact open-type full-face rock tunnel boring machine provided in an embodiment of the present application, fig. 2 isbase:Sub>A schematic structural diagrambase:Sub>A-base:Sub>A in fig. 1, fig. 3 isbase:Sub>A schematic structural diagram ofbase:Sub>A shield provided in an embodiment of the present application, and fig. 4 isbase:Sub>A schematic structural diagram ofbase:Sub>A main beam provided in an embodiment of the present application.
In a first specific embodiment, the application provides a tight-turning compact open-type full-face rock tunnel boring machine, which mainly comprises a cutter head 1, a slag discharging system 2, a shield 3, a main drive 4, a first jumbolter system 5, a main beam 6, an advanced drilling machine system 7, a supporting shoe propulsion system 8, a rear support 9, a second jumbolter system 10 and a rear mating system 11, wherein the rear mating system 11 is connected behind the main beam 6.
Wherein, the cutter head 1 is arranged in front of the main drive 4 to break rocks and play a role.
The main drive 4 is mounted to the main beam 6, the main drive 4 serving to drive the cutterhead 1 in rotation so that the cutterhead 1 breaks rock when rotating.
The supporting shoe propulsion system 8 is installed on the main beam 6, the supporting shoe propulsion system 8 is connected with the main drive 4, and the supporting shoe propulsion system 8 plays a role in driving the main drive 4 to move so that the main drive 4 and the cutter head 1 can be driven to tunnel forwards.
The rear support 9 is arranged between the rear part of the main beam 6 and the rear matching system 11, and the rear support 9 plays a role in supporting the hole wall tightly.
The shield 3 is arranged on the periphery of the main drive 4, and the shield 3 plays a role of tightly adhering to the wall of the tunnel and stabilizing the heading machine and the tunnel during forward heading.
The advanced drilling machine system 7 is arranged on the periphery of the supporting shoe propulsion system 8, the advanced drilling machine system 7 plays a role in drilling, grouting and reinforcing the front of the cutter head 1, and geological conditions at the cutter head 1 are improved through drilling, grouting and reinforcing.
The first anchor rod drilling machine system 5 is installed on the periphery of the supporting shoe propulsion system 8, the second anchor rod drilling machine system 10 is installed on the rear matching system 11, and the first anchor rod drilling machine system 5 and the second anchor rod drilling machine system 10 play a role in anchor rod supporting at different positions of a tunnel.
In the embodiment, during tunneling, the shoe supporting propulsion system 8 firstly supports the wall of the hole to generate an acting point capable of pushing the main drive 4, then directly pushes the main drive 4, and further pushes the cutter head 1 to tunnel forwards; the main drive 4 drives the cutter head 1 to rotate, and the shield 3 is tightly attached to the wall of the hole during tunneling; after the tunnel is pushed to the place, the rear support 9 supports the tunnel wall tightly, and the supporting shoe pushing system 8 is retracted to complete the tunneling of the section; and repeating the steps to realize continuous tunneling.
In the supporting implementation process of unfavorable geology, when the rockfall condition occurs above the cutter head 1, the forepoling machine system 7 conducts drilling, grouting and reinforcing on the front side of the cutter head 1, the first anchor rod drilling machine system 5 and the second anchor rod drilling machine system 10 conduct anchor rod supporting, and finally, concrete is sprayed through the spraying and mixing system in the auxiliary system 11 to conduct reinforcing.
The small-turning compact open-type full-face rock tunnel boring machine has the advantages that the support system is taken into consideration, the support requirement is met, meanwhile, the main beam 6 is compact in structure, the length of the main beam 6 is greatly reduced, more ingenious flexibility is achieved, the rock tunnel boring machine can adapt to small-turning rock tunnel excavation, and the application range of the rock tunnel boring machine is widened.
In some embodiments, the shield 3 comprises a top shield 301, a first side shield 302, a second side shield 303, a first overlap shield 304, a second overlap shield 305 and a bottom shield 306 for adhering to different positions of the wall of the hole, the first and second side shields 302 and 303 are located on both sides of the top shield 301 and the bottom shield 306, and the first and second overlap shields 304 and 305 are located between the top shield 301 and the first side shield 302 and between the top shield 301 and the second side shield 303, respectively.
In this embodiment, the shield 3 is driven by the oil cylinder, so that the shield 3 can expand outward to tighten the wall of the hole. Taking the first side as left, the second side as right, the first side shield 302 and the first overlap shield 304 are located at the left side of the top shield 301 and the bottom shield 306, and the second side shield 303 and the second overlap shield 305 are located at the right side of the top shield 301 and the bottom shield 306.
In some embodiments, the pilot drilling machine system 7 is located behind the shield 3, and the first and second lap shields 304 and 305 are each provided with a pilot drilling machine prepared hole 307, and the pilot drilling machine prepared hole 307 is used for the pilot drilling operation after the pilot drilling machine system 7 passes through.
In the present embodiment, the advance drilling machine system 7 located behind the shield 3 is arranged along the center of the tunnel, and advance drilling work is performed through the advance drilling machine prepared hole 307 reserved on the shield 3.
In some embodiments, shoe propulsion system 8 includes a shoe 801, a shoe cylinder 802, a torque cylinder 803, a unilateral saddle 804, and a propulsion cylinder 805.
Wherein, the unilateral saddle 804 is mounted on the main beam 6; the shoe supporting oil cylinder 802 is provided with a fixed end and a driving end, two ends of the shoe supporting oil cylinder 802 are respectively connected with the unilateral saddle 804 and the shoe supporting 801, and the shoe supporting oil cylinder 802 drives the shoe supporting 801 to support the wall of the hole tightly; the propelling oil cylinder 805 is provided with a fixed end and a driving end, two ends of the propelling oil cylinder are respectively connected with the supporting shoe 801 and the main drive 4, and the propelling oil cylinder 805 pushes the main drive 4 to tunnel when the supporting shoe 801 tightly supports the wall of the hole.
It should be noted that the combination of the supporting shoes 801 and the supporting shoe cylinders 802 is at least two groups, and at least two groups are distributed on two sides of the main beam 6; illustratively, two shoe supporting oil cylinders 802 are positioned at the left side and the right side, and the turning in the horizontal direction is realized through the left shoe supporting oil cylinder 802 and the right shoe supporting oil cylinder 802.
In the embodiment, in the tunneling implementation process, the shoe supporting oil cylinder 802 extends out to drive the shoe supporting 801 to support the wall of the hole tightly, so as to generate an acting point of the propulsion oil cylinder 805; the propulsion oil cylinder 805 directly propels the main drive 4 and then propels the cutter head 1 to drive forwards; the main drive 4 drives the cutter head 1 to rotate; the shield 3 is tightly attached to the wall of the hole during tunneling; after the pushing oil cylinder 805 is pushed in place, the supporting shoe of the rear support 9 extends out of the supporting hole wall, and the supporting shoe oil cylinder 802 retracts to drive the supporting shoe 801 to leave the hole wall; the propulsion oil cylinder 805 retracts to drive the supporting shoe 801 to be in place; and repeating the steps to realize continuous tunneling.
In the process of tunneling needing a small turn, turning is realized by controlling the extension of the left and right two supporting shoe oil cylinders 802, when the extension of the left oil cylinder is larger than that of the right oil cylinder, the tunneling machine deflects by taking the supporting shoe oil cylinder 802 on the left side as a fulcrum, namely, horizontal left turning is carried out; when the extension of the left oil cylinder is smaller than that of the right oil cylinder, the heading machine deflects by taking the tightly supported right supporting shoe oil cylinder 802 as a fulcrum, namely, performs horizontal right turning.
In some embodiments, the shield 3 further includes a torque cylinder 803, the torque cylinder 803 is connected to the shoe cylinder 802, the torque cylinder 803 is used for driving the shoe cylinder 802 to move, and the driving direction of the torque cylinder 803 is different from the driving direction of the shoe cylinder 802 in the tunnel section.
In this embodiment, the shoe supporting cylinder 802 is hung upside down on the main beam 6 by four torque cylinders 803 and a unilateral saddle 804, and the turning in the vertical direction is realized by the lifting and retracting of the torque cylinders 803.
In some embodiments, a main push cylinder ear 401 is provided behind the main drive 4 for providing an articulation position for the push cylinder 805 to articulate the push cylinder 805 with the main push cylinder ear 401.
In the embodiment, the propulsion cylinder 805 is designed as a single left and right, one end of the propulsion cylinder 805 is connected to the supporting shoe 801, and the other end is hinged to the main propulsion cylinder lug 401 on the main drive 4, so that the space requirement of the main beam 6 is greatly reduced, the propulsion force directly acts on the main drive 4, and the loss of the propulsion force transmission is reduced.
In some embodiments, the first roof bolter system 5 is arranged radially along the tunnel section, and a slewing reducer is provided on the base of the first roof bolter system 5 to enable the first roof bolter system 5 to perform work on the radial region.
In this embodiment, the support system of the main machine region of the tight turning compact open full face rock ripper comprises a first roof bolter system 5, a pilot drill system 7 and a second roof bolter system 10. The first jumbolter system 5, which is arranged above the thrust cylinder 805, can perform operations in the radial 90 ° region, and the second jumbolter system 10, which is arranged on the rear mating system 11, is located on the skid, and can also perform operations in the radial 90 ° region.
In some embodiments, the first jumbolter system 5 is disposed on a peripheral side of the thrust cylinder 805 and the lead drill system 7 is disposed on a peripheral side of the shoe cylinder 802.
In this embodiment, when the supporting system meets the supporting requirement, the space of the main beam 6 is fully utilized, the empty-roof distance is reduced, and a condition is provided for shortening the main beam 6.
In some embodiments, the main beams 6 are gradually lowered from the front to the rear, i.e. their upper surface at the rear is lower than the upper surface at the front.
In this embodiment, by gradually lowering the main beam 6, more space is left above the main beam 6 for support.
In some embodiments, the main beam 6 comprises a first beam 601 and a second beam 602 connected, and gradually decreases from the first beam 601 to the second beam 602; the first beam 601 is mounted with the main drive 4 and the second beam 602 is mounted with the shoe propulsion system 8.
In this embodiment, the main beam 6 is split, the first beam 601 and the second beam 602 are connected together by bolts, the first beam 601 is connected with the main drive 4 by bolts, and the rear support 9 is connected behind the second beam 602.
Through the innovative design, the small-turning compact open-type full-face rock tunnel boring machine can adapt to the excavation of a small-turning rock tunnel, and the application range of the rock tunnel boring machine is greatly improved; the main beam has a compact structure, the total length of the main beam is greatly shortened, a foundation is provided for open-type TBM small-turning tunneling, and the safety coefficient of a supporting area is increased due to the small empty-head distance; meanwhile, the main beam structure is gradually reduced from front to back, so that the supporting area space is increased, the supporting is more convenient and faster, and the supporting efficiency is improved; compared with the existing rock tunnel boring machine, the rock tunnel boring machine has the advantages of compact structure, more reasonable space utilization rate and convenience in transportation, field assembly and transition.
It should be noted that many of the components mentioned in this application are either common standard components or components known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The tight turn compact open full face rock ripper provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A small-turning compact open type full-face rock tunnel boring machine is characterized by comprising a main beam (6) and a rear matching system (11) connected to the rear of the main beam (6);
the main beam (6) is provided with a main drive (4) and a shoe supporting propulsion system (8), the shoe supporting propulsion system (8) is connected with the main drive (4), and the shoe supporting propulsion system (8) can drive the main drive (4) to move;
the rear mating system (11) is provided with a second anchor rod drilling machine system (10), and the second anchor rod drilling machine system (10) can carry out anchor rod support;
a cutter head (1) is arranged in front of the main drive (4), and the main drive (4) can drive the cutter head (1) to rotate; a slag discharging system (2) is arranged in the cutter head (1), and the slag discharging system (2) can convey rock slag; a shield (3) is arranged on the periphery of the main drive (4), and the shield (3) can be tightly attached to the wall of the hole; a first anchor rod drilling machine system (5) and an advanced drilling machine system (7) are arranged on the periphery of the supporting shoe propulsion system (8), the first anchor rod drilling machine system (5) can carry out anchor rod supporting, and the advanced drilling machine system (7) can carry out drilling grouting reinforcement on the front of the cutter head (1); the main beam (6) with install back support (9) between the back supporting system (11), back support (9) can prop up the hole wall tightly.
2. A tight-turning compact open full-face rock ripper according to claim 1, characterized in that the shield (3) comprises a top shield (301), a first side shield (302), a second side shield (303), a first lap shield (304), a second lap shield (305) and a bottom shield (306) to be affixed to different locations of the tunnel wall, the first side shield (302) and the second side shield (303) being located on both sides of the top shield (301) and the bottom shield (306), the first lap shield (304) and the second lap shield (305) being located between the top shield (301) and the first side shield (302) and between the top shield (301) and the second side shield (303), respectively.
3. A mini-turn compact open full face rock ripper according to claim 2, characterized in that the advanced drilling rig system (7) is located behind the shield (3), and the first and second overlap shields (304, 305) are each provided with an advanced drilling rig pre-cut hole (307), the advanced drilling rig pre-cut hole (307) being used for advanced drilling work after the advanced drilling rig system (7) passes through.
4. A minicurn compact open full face rock ripper according to any one of claims 1 to 3, wherein the shoe propulsion system (8) comprises:
the supporting shoe (801) is used for clinging to the wall of the hole;
a single-side saddle (804) mounted to the main beam (6);
the supporting shoe oil cylinder (802) is connected with the supporting shoe (801) and is used for driving the supporting shoe (801) to tightly support the wall of the hole; and
the propelling oil cylinder (805) is connected with the main drive (4) and is used for driving the main drive (4) to move when the supporting shoe (801) supports the wall of the hole;
the combination of the supporting shoes (801) and the supporting shoe oil cylinders (802) is at least two groups, and the at least two groups are distributed on two sides of the main beam (6).
5. The tight turn compact open full face rock ripper according to claim 4, characterized in that said shield (3) further comprises a torque cylinder (803), said torque cylinder (803) being connected to said shoe cylinder (802), said torque cylinder (803) being adapted to drive said shoe cylinder (802) in a movement, a driving direction of said torque cylinder (803) being different from a driving direction of said shoe cylinder (802) within a tunnel section.
6. A minicurn compact open full face rock ripper according to claim 4, wherein a main thrust cylinder ear mount (401) is provided behind the main drive (4), the thrust cylinder (805) being hinged to the main thrust cylinder ear mount (401).
7. A tight-turning compact open full face rock ripper according to any one of claims 1 to 3, characterized in that the first roof bolter system (5) is arranged radially along a tunnel section and a slew reducer is provided on the base of the first roof bolter system (5) to enable the first roof bolter system (5) to perform radial zone operations.
8. A minicurn compact open full face rock ripper according to claim 4, wherein the first jumbolter system (5) is disposed on a circumferential side of the thrust cylinder (805), and the look-ahead drill system (7) is disposed on a circumferential side of the shoe cylinder (802).
9. A tight-turning compact open full face rock ripper according to any one of claims 1 to 3, wherein the girders (6) are progressively lower from front to rear configuration, i.e. their upper surface at the rear is lower than the upper surface at the front.
10. The minicurn compact open full face rock ripper of claim 9, wherein the main beam (6) comprises a first beam (601) and a second beam (602) connected and descending from the first beam (601) to the second beam (602); the main drive (4) is mounted on the first beam body (601), and the shoe supporting propulsion system (8) is mounted on the second beam body (602).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210967834.4A CN115288714A (en) | 2022-08-12 | 2022-08-12 | Small-turning compact open-type full-face rock tunneling machine |
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| CN202210967834.4A CN115288714A (en) | 2022-08-12 | 2022-08-12 | Small-turning compact open-type full-face rock tunneling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537803A (en) * | 2023-06-01 | 2023-08-04 | 中国矿业大学(北京) | Rock burst control type TBM system and construction method |
| CN118072602A (en) * | 2024-04-22 | 2024-05-24 | 中国矿业大学(北京) | Underground engineering intelligent digging and supporting physical simulation test system and method |
-
2022
- 2022-08-12 CN CN202210967834.4A patent/CN115288714A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116537803A (en) * | 2023-06-01 | 2023-08-04 | 中国矿业大学(北京) | Rock burst control type TBM system and construction method |
| CN116537803B (en) * | 2023-06-01 | 2024-01-26 | 中国矿业大学(北京) | Rock burst control type TBM system and construction method |
| CN118072602A (en) * | 2024-04-22 | 2024-05-24 | 中国矿业大学(北京) | Underground engineering intelligent digging and supporting physical simulation test system and method |
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