CN114017055A - Multi-functional excavation rack device in mountain tunnel - Google Patents
Multi-functional excavation rack device in mountain tunnel Download PDFInfo
- Publication number
- CN114017055A CN114017055A CN202111405109.XA CN202111405109A CN114017055A CN 114017055 A CN114017055 A CN 114017055A CN 202111405109 A CN202111405109 A CN 202111405109A CN 114017055 A CN114017055 A CN 114017055A
- Authority
- CN
- China
- Prior art keywords
- vehicle body
- fixedly connected
- tunnel excavation
- mountain tunnel
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000009412 basement excavation Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000004575 stone Substances 0.000 claims description 4
- 125000003003 spiro group Chemical group 0.000 abstract 1
- 241000282326 Felis catus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/122—Working or loading platforms
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a multifunctional mountain tunnel excavation rack device, which relates to the technical field of tunnel excavation and comprises the following components: the spout, locate in the last automobile body, the screw rod rotates to be connected at the spout both ends, the slider slides respectively and locates in the spout, and the spiro union is on the screw rod, pneumatic cylinder one end articulates respectively on the slider, the frame bottom of standing is respectively with pneumatic cylinder other end fixed connection, drive arrangement fixes in last automobile body outside, respectively with screw rod one end fixed connection, be used for the drive screw rod to rotate, slide in the spout in order to drive the slider, lower automobile body is fixed and is located bottom of the last automobile body, three spacing hole, telescoping device locates a plurality of spacing downtheholess, diaphragm and telescoping device one end fixed connection, sawtooth dish and diaphragm free end fixed connection, the device of removing obstacles locates on the outer lateral wall of the automobile body of getting off, be located directly over the sawtooth dish, the device can use on the different working faces in different tunnels and on the depth face, the function of removing obstacles on road surface has simultaneously.
Description
Technical Field
The invention relates to the field of tunnel excavation equipment, in particular to a multifunctional mountain tunnel excavation rack device.
Background
The rack is an operation platform for tunnel excavation and primary support implementation, the length, the width and the height of the rack are calculated according to the tunnel excavation outline size, and good quality and safety of mountain tunnel excavation and primary support can be guaranteed.
At present, tunnel excavation can not be in the different degree of depth simultaneous working, simultaneously because the tunnel diameter is different, same equipment can not use in the tunnel of difference, because tunnel road surface is uneven influences the use of excavation platform.
Disclosure of Invention
The embodiment of the invention provides a multifunctional mountain tunnel excavation rack device, which can solve the problems in the prior art.
The embodiment of the invention provides a multifunctional mountain tunnel excavation rack device, which comprises:
the side wall of the upper vehicle body is in a step shape;
the sliding chutes are arranged in the upper vehicle body;
the screw rods are rotatably connected to two ends of the sliding grooves;
the sliding blocks are respectively arranged in the sliding grooves in a sliding mode and are in threaded connection with the screw rods;
one end of each hydraulic cylinder is hinged to the corresponding sliding block;
the bottoms of the plurality of station frames are respectively fixedly connected with the other ends of the plurality of hydraulic cylinders;
the driving device is fixed on the outer side of the upper vehicle body, is respectively and fixedly connected with one end of the plurality of screw rods, and is used for driving the plurality of screw rods to rotate so as to drive the plurality of sliding blocks to respectively slide in the plurality of sliding chutes;
the lower vehicle body is fixedly arranged at the bottom of the upper vehicle body;
the three limiting holes are horizontally arranged in the lower vehicle body, the middle limiting hole is communicated with the side walls of the limiting holes on the two sides, which are opposite to each other, are provided with first through grooves, and the top of the limiting holes is provided with second through grooves;
the telescopic device is arranged inside the plurality of limiting holes;
the two transverse plates are respectively and fixedly connected with two ends of one side of the telescopic device;
the two saw tooth discs are rotatably connected with the free end of the transverse plate, and the bottom of each saw tooth disc is provided with a driving wheel;
one end of the transmission device is arranged on the transverse plate, and the other end of the transmission device is connected with the transmission wheel at the bottom of the sawtooth disc;
the obstacle clearing device is arranged on the outer side wall of the lower vehicle body and is positioned right above the sawtoothed disc and used for clearing stones in the middle of the road to two sides of the road.
In the next step, the height and width of the steps on the side walls of the plurality of station frames and the upper vehicle body are the same.
And in a near step, the hydraulic cylinders slide in the inclined holes, one end of each inclined hole is communicated with the corresponding chute, and the other end of each inclined hole penetrates out of the side wall of the upper vehicle body.
In a further step, a ladder stand is arranged on the side wall of the upper vehicle body.
Further, the driving device includes:
a plurality of first motors, one end and many screw rod fixed connection.
Further, the telescopic device comprises:
the two sleeves are respectively arranged in the limiting holes at the two sides in a sliding manner, and the outer side facing back is provided with a convex block;
the guide rod is arranged in the limiting hole in the middle in a sliding mode, and two sides of the guide rod are fixedly connected with the two sleeves respectively;
one end of each screw rod is in threaded connection with the two sleeves respectively, the other end of each screw rod extends out of the lower vehicle body and is fixedly connected with two chain wheels respectively, and the two chain wheels are connected through a chain;
and the second motor is fixed on the lower vehicle body, and an output shaft is fixedly connected with the chain wheel.
Further, the obstacle removing device includes:
the straight rod is positioned above the sawtooth disc, a sliding hole is formed in the middle of the straight rod, and one end of the straight rod is hinged with the lower vehicle body;
the third motor is arranged on the outer side wall of the lower vehicle body and is positioned above the straight rod;
one end of the rotating rod is fixedly connected with the output shaft of the third motor, the other end of the rotating rod is provided with a T-shaped column, and a vertical rod of the T-shaped column slides in the sliding hole of the straight rod.
And one end of the upper vehicle body is provided with a cab, and the bottom of the lower vehicle body is provided with wheels.
Further, the transmission device includes:
the fourth motor is fixedly arranged on the transverse plate and slides in the second through groove;
the chain wheel is fixedly connected with an output shaft of the fourth motor;
and the chain is connected with the chain wheel and the driving wheel.
Compared with the prior art, the embodiment of the invention provides a multifunctional mountain tunnel excavation rack device, which has the following beneficial effects:
1. through setting up the pneumatic cylinder on the slider, pneumatic cylinder one end is equipped with the frame of standing, realizes that the slider slides in the spout under the drive of first motor, and the frame of standing also can slide along inclined hole both ends, can adapt to the work in different tunnels and the working face in the different diameter directions in same tunnel again under the pneumatic cylinder is flexible.
2. Through two sawtooth discs of rotating the connection on two sleeves, can realize leveling the processing on unevenness's road surface.
3. The broken stones on the road surface can be swept at the two sides of the wheels through the obstacle clearing device.
Drawings
Fig. 1 is a cross-sectional view of a multi-functional mountain tunnel excavation bench device according to an embodiment of the present invention;
FIG. 2 is a schematic structural side view of a multi-functional mountain tunnel excavation bench according to an embodiment of the present invention
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
It will be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and include, for example, fixed or removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Fig. 1-2 are schematic structural views of a multifunctional mountain tunnel excavation bench device according to an embodiment of the present invention.
One end of the upper vehicle body 1 is provided with a cab, and the bottom of the lower vehicle body 10 is provided with wheels.
As shown in figure 1, the side wall of the upper vehicle body 1 is stepped, a plurality of chutes 4 are arranged in the upper vehicle body 1, the chutes 4 are arranged along the new direction of the vehicle, a plurality of screws 3 are rotatably connected at two ends of the plurality of chutes 4, one end of each screw is rotatably connected at one end of the upper vehicle body 1, the other end of each screw is also rotatably connected at one end of the upper vehicle body 1, the part extending out of the upper vehicle body 1 is fixedly connected with a plurality of first motors 15, a plurality of sliders 5 are respectively screwed on the plurality of screws 3, slidably arranged in the plurality of chutes 4 and screwed on the plurality of screws 3, when the first motors 15 are started, the plurality of screws 3 respectively rotate to drive the plurality of sliders 5 to horizontally move left and right on the plurality of screws 3 along the vehicle traveling direction, a plurality of hydraulic cylinders 2 slide in a plurality of inclined holes 9, one ends of the inclined holes 9 are communicated with the chutes 4, the other ends penetrate through the side wall of the upper vehicle body 1, one ends of the hydraulic cylinders 2 are respectively hinged on the plurality of sliders 5, 6 bottoms of a plurality of stations frame respectively with the 2 other ends fixed connection of a plurality of pneumatic cylinders, when slider 5 slides, pneumatic cylinder 2 horizontal slip in inclined hole 9, can realize the work on the tunnel work face of the 6 different degree of depth of a plurality of stations frame, the scalability of pneumatic cylinder 2 can realize the work on the tunnel work face of different diameters, the ladder height and the width on a plurality of stations frame 6 and the 1 lateral wall of last automobile body are the same, when the pneumatic cylinder shrink, station frame 6 can coincide with two limits of the ladder of last automobile body 1, make things convenient for the automobile body to pass in and out the tunnel, the lateral wall of last automobile body 1 is equipped with cat ladder 14, make things convenient for constructor to climb up and climb down.
Inside a plurality of spacing holes 11 were located to the telescoping device, specifically included:
as shown in fig. 2, two sleeves 12 are respectively slidably disposed in the limiting holes 11 at two sides, a protruding block is disposed on the outer side facing back, the protruding block moves in the second through-slot, the guide rod is slidably disposed in the limiting hole 11 in the middle, two sides are respectively fixedly connected with the two sleeves 12, one end of each of two lead screws 13 is respectively screwed with the two sleeves 12, the other end of each of the two lead screws extends out of the lower car body 10 and is respectively fixedly connected with two chain wheels, the two chain wheels are connected through a chain, a second motor 17 is fixed on the lower car body 10, an output shaft is fixedly connected with the chain wheels, the two chain wheels are driven by the second motor 17 to rotate to drive the two lead screws 13 to synchronously rotate, the sleeves 12 slide in the two limiting holes, the protruding blocks at two sides are in limiting sliding in the first through-hole, the middle guide rod slides in the limiting hole in the middle, and it is to be noted that the guide rod is short and the length is smaller than the length of the sleeves 12.
Two diaphragm 22 respectively with two sleeve 12 top fixed connection, two sawtooth discs 21 and two diaphragm 22 free ends rotate to be connected, the bottom is equipped with the drive wheel, be equipped with the fourth motor on diaphragm 22, the fourth motor top slides in the second through-groove, the bottom is equipped with the sprocket, rotate through chain drive sprocket and drive wheel, thereby drive sawtooth disc 21 rotates, sawtooth disc 21 is used for blocking automobile body object in automobile body the place ahead from the bottom sawing, it is required to explain that the automobile body bottom is equipped with the third through groove that the diameter is greater than sawtooth disc 21 to get off, third through groove and spacing hole 11 and first through groove intercommunication, what need to explain that sawtooth disc 21 only meets higher object in the front and hinders the automobile body and just uses when passing through, income automobile body is inside under the general condition.
The device of removing obstacles is located down on automobile body 10 lateral wall, is located under the sawtooth dish 21 for clear up the stone in the middle of the road to the road both sides, the device of removing obstacles includes: the straight rod 20 is located above the sawtooth disc 21, a sliding hole is formed in the middle of the straight rod, one end of the third motor is hinged to the lower vehicle body, the third motor 18 is arranged on the outer side wall of the lower vehicle body 10 and located above the straight rod 20, the rotating rod 19 is located above the straight rod 20, one end of the rotating rod is fixedly connected with an output shaft of the third motor 18, a T-shaped column is arranged at the other end of the rotating rod, a vertical rod of the T-shaped column slides in the sliding hole of the straight rod 20, the rotating rod 19 is driven to do circular motion through rotation of the third motor 18, and meanwhile the vertical rod of the T-shaped column slides in the sliding hole of the straight rod 20 to drive two sides of the straight rod 20 to swing, and obstacles are swept to two ends of the vehicle body.
The above disclosure is only for the specific embodiment of the present invention, but the embodiment of the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.
Claims (9)
1. Multi-functional excavation rack device in mountain tunnel, its characterized in that includes:
the side wall of the upper vehicle body (1) is of a step shape;
a plurality of chutes (4) provided in the upper vehicle body (1);
the screw rods (3) are rotatably connected to two ends of the sliding grooves (4);
the sliding blocks (5) are respectively arranged in the sliding grooves (4) in a sliding mode and are in threaded connection with the screw rods (3);
one end of each hydraulic cylinder (2) is hinged to each sliding block (5);
the bottoms of the station frames (6) are respectively fixedly connected with the other ends of the hydraulic cylinders (2);
the driving device is fixed on the outer side of the upper vehicle body (1), is respectively and fixedly connected with one end of each of the plurality of screw rods (3), and is used for driving the plurality of screw rods (3) to rotate so as to drive the plurality of sliding blocks (5) to respectively slide in the plurality of sliding grooves (4);
the lower vehicle body (10) is fixedly arranged at the bottom of the upper vehicle body (1);
the three limiting holes (11) are horizontally arranged in the lower vehicle body (10), the limiting hole (11) in the middle is communicated with the side walls of the limiting holes (11) on the two sides, the side walls, opposite to the limiting holes (11) on the two sides, of the middle are provided with first through grooves, and the top of the middle is provided with a second through groove;
the telescopic device is arranged inside the limiting holes (11);
two transverse plates (22) which are respectively fixedly connected with two ends of one side of the telescopic device;
the two saw tooth discs (21) are respectively and rotatably connected with the free end of the transverse plate (22), and the bottoms of the two saw tooth discs are respectively provided with two driving wheels;
one end of the transmission device is arranged on the transverse plate (22), and the other end of the transmission device is connected with the transmission wheel at the bottom of the saw tooth disc (21);
the obstacle clearing device is arranged on the outer side wall of the lower vehicle body (10), is positioned right above the sawtoothed disc (21) and is used for clearing stones in the middle of a road to two sides of the road.
2. The multi-functional mountain tunnel excavation bench device according to claim 1, wherein a plurality of the station frames (6) have the same height and width as the steps on the side wall of the upper vehicle body (1).
3. The multi-functional mountain tunnel excavation bench device of claim 1, wherein a plurality of hydraulic cylinders (2) slide in a plurality of inclined holes (9), one end of each inclined hole (9) is communicated with the chute (4), and the other end of each inclined hole penetrates through the side wall of the upper vehicle body (1).
4. The multi-functional mountain tunnel excavation bench device according to claim 1, wherein the upper vehicle body (1) is provided at a side wall thereof with a ladder (14).
5. The multi-functional mountain tunnel excavation gantry apparatus of claim 1, wherein the driving means includes:
and the output shaft of the first motors (15) is fixedly connected with the screw rods (3).
6. The multi-functional mountain tunnel excavation gantry apparatus of claim 1, wherein the telescoping apparatus comprises:
the two sleeves (12) are respectively arranged in the limiting holes (11) on the two sides in a sliding manner, the outer side facing back is provided with a convex block, the convex block slides in the through groove, and the top end of the convex block is fixedly connected with the transverse plate (22);
the guide rod is arranged in the limiting hole (11) in the middle in a sliding mode, and two sides of the guide rod are fixedly connected with the two sleeves (12) through supporting rods respectively;
one end of each screw rod (13) is in threaded connection with the two sleeves (12), the other end of each screw rod extends out of the lower vehicle body (10) and is fixedly connected with two chain wheels, and the two chain wheels are connected through a chain;
and the second motor (17) is fixed on the lower vehicle body (10), and an output shaft is fixedly connected with one chain wheel.
7. The multi-functional mountain tunnel excavation gantry apparatus of claim 1, wherein the obstacle removing apparatus comprises:
the straight rod (20) is positioned above the sawtoothed disc (21), a sliding hole is formed in the middle of the straight rod, and one end of the straight rod is hinged with the lower vehicle body (10);
the third motor (18) is arranged on the outer side wall of the lower vehicle body (10) and is positioned above the straight rod (20);
and one end of the rotating rod (19) is fixedly connected with an output shaft of the third motor (18), the other end of the rotating rod is provided with a T-shaped column, and a vertical rod of the T-shaped column slides in a sliding hole of the straight rod (20).
8. The multi-functional mountain tunnel excavation bench device of claim 1, wherein the upper vehicle body (1) is provided with a cab at one end thereof, and the lower vehicle body (10) is provided with wheels at the bottom thereof.
9. The multi-functional mountain tunnel excavation gantry apparatus of claim 1, wherein the transmission means comprises:
the fourth motor is fixedly arranged on the transverse plate (22) and slides in the second through groove;
the chain wheel is fixedly connected with the output shaft of the fourth motor;
and the chain is connected with the chain wheel and the driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405109.XA CN114017055B (en) | 2021-11-24 | 2021-11-24 | Multi-functional excavation rack device in mountain tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405109.XA CN114017055B (en) | 2021-11-24 | 2021-11-24 | Multi-functional excavation rack device in mountain tunnel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114017055A true CN114017055A (en) | 2022-02-08 |
| CN114017055B CN114017055B (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111405109.XA Active CN114017055B (en) | 2021-11-24 | 2021-11-24 | Multi-functional excavation rack device in mountain tunnel |
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| Country | Link |
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| CN (1) | CN114017055B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438939A (en) * | 2022-03-02 | 2022-05-06 | 中铁十五局集团有限公司 | Scum cleaning system of arc bottom surface in tunnel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10205275A (en) * | 1997-01-23 | 1998-08-04 | Hazama Gumi Ltd | Tunnel boring device |
| CN210948686U (en) * | 2019-12-09 | 2020-07-07 | 中铁十六局集团有限公司 | A excavation rack for tunnel smooth blasting |
| CN111550260A (en) * | 2020-03-19 | 2020-08-18 | 高军 | Trolley for soft rock tunnel full-section micro-step excavation construction and use method |
| CN111577327A (en) * | 2020-04-28 | 2020-08-25 | 中国一冶集团有限公司 | Device for adjusting size of tunnel excavation trolley |
| CN112943291A (en) * | 2021-04-23 | 2021-06-11 | 安徽华骅桥梁设备制造有限公司 | Multifunctional multi-section working platform vehicle for tunnel excavation |
| CN214577010U (en) * | 2020-12-25 | 2021-11-02 | 六盘水华安爆破工程有限公司 | Excavating equipment for tunnel engineering |
-
2021
- 2021-11-24 CN CN202111405109.XA patent/CN114017055B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10205275A (en) * | 1997-01-23 | 1998-08-04 | Hazama Gumi Ltd | Tunnel boring device |
| CN210948686U (en) * | 2019-12-09 | 2020-07-07 | 中铁十六局集团有限公司 | A excavation rack for tunnel smooth blasting |
| CN111550260A (en) * | 2020-03-19 | 2020-08-18 | 高军 | Trolley for soft rock tunnel full-section micro-step excavation construction and use method |
| CN111577327A (en) * | 2020-04-28 | 2020-08-25 | 中国一冶集团有限公司 | Device for adjusting size of tunnel excavation trolley |
| CN214577010U (en) * | 2020-12-25 | 2021-11-02 | 六盘水华安爆破工程有限公司 | Excavating equipment for tunnel engineering |
| CN112943291A (en) * | 2021-04-23 | 2021-06-11 | 安徽华骅桥梁设备制造有限公司 | Multifunctional multi-section working platform vehicle for tunnel excavation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438939A (en) * | 2022-03-02 | 2022-05-06 | 中铁十五局集团有限公司 | Scum cleaning system of arc bottom surface in tunnel |
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| CN114017055B (en) | 2023-04-25 |
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