CN111520153A - Heading machine and construction method - Google Patents
Heading machine and construction method Download PDFInfo
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- CN111520153A CN111520153A CN202010596710.0A CN202010596710A CN111520153A CN 111520153 A CN111520153 A CN 111520153A CN 202010596710 A CN202010596710 A CN 202010596710A CN 111520153 A CN111520153 A CN 111520153A
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- 238000010276 construction Methods 0.000 title claims abstract description 18
- 230000005641 tunneling Effects 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 28
- 238000009412 basement excavation Methods 0.000 claims abstract description 7
- 238000011161 development Methods 0.000 claims abstract description 7
- 239000002893 slag Substances 0.000 claims description 10
- 239000000428 dust Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 239000011435 rock Substances 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 239000010865 sewage Substances 0.000 description 8
- 238000003860 storage Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- 238000004146 energy storage Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000000638 solvent extraction Methods 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
- 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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- 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
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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 heading machine and a construction method, and solves the problem that in the prior art, the heading machine has low small turning excavation efficiency. The main machine of the development machine comprises a driving system, a split type front shield and a support shield, wherein a propelling mechanism with a direction adjusting function is arranged between the split type front shield and the support shield. The propelling mechanism is a propelling oil cylinder; a driving system is arranged in the split type front shield, a cutter head is arranged at the front part of the driving system, and the rear part of the driving system or the split type front shield is connected with the support shield through a propulsion oil cylinder; and a boot supporting mechanism is arranged in the support shield. Compared with the existing full-face tunneling machine, the full-face tunneling machine can be used for tunnel construction with an ultra-small turning radius, the whole machine structure is simple, the equipment arrangement is reasonable, and the adaptability of the full-face tunneling machine is enhanced.
Description
Technical Field
The invention relates to the technical field of tunneling machines, in particular to a tunneling machine and a construction method.
Background
The full-face tunneling machine (TBM) is a large-scale tunneling device integrating the technologies of machinery, electronics, hydraulic pressure, laser and the like, has the advantages of economy, safety, environmental protection and the like in tunnel construction, and is widely applied to the construction of tunnels of traffic engineering, hydraulic engineering, civil air defense engineering and the like at present. The traditional full-face heading machine is large in equipment and insufficient in turning adaptability, and is difficult to popularize in short-distance tunnel engineering with small turning radius such as mines, energy storage power stations and the like. At present, the drilling and blasting method is mainly used for tunnel excavation in the fields of mines and energy storage power stations, the mechanization degree is low, the tunneling efficiency is low, and the operation safety is poor. The hard rock heading machine with the application number of CN201410260192.X can realize tunnel excavation with a small turning radius, but is weak in main beam strength, inflexible in steering and limited in small-turning construction.
Disclosure of Invention
Aiming at the defects in the background technology, the invention provides the heading machine and the construction method, and solves the problem that the heading machine in the prior art is low in small-turning excavation efficiency.
The technical scheme of the invention is realized as follows: a main machine of a tunneling machine comprises a driving system, a split type front shield and a support shield, wherein a propelling mechanism with a direction adjusting function is arranged between the split type front shield and the support shield.
The propelling mechanism is a propelling oil cylinder; a driving system is arranged in the split type front shield, a cutter head is arranged at the front part of the driving system, and the rear part of the driving system or the split type front shield is connected with the support shield through a propulsion oil cylinder; and a boot supporting mechanism is arranged in the support shield.
The split type front shield comprises an upper front shield and a lower front shield, and the upper front shield is connected with the lower front shield through a jacking oil cylinder to form an annular shield body.
The propulsion oil cylinders are arranged along the circumferential direction of the support shield, two adjacent propulsion oil cylinders are arranged in a V shape, and the telescopic ends of the propulsion oil cylinders are connected with the upper front shield and the lower front shield.
The cutter head is provided with a full-section disc cutter, the driving system is arranged inside the split type front shield, and the telescopic end of the propulsion oil cylinder is connected with a driving box of the driving system.
Prop the boots mechanism and include that the right side props boots and left side and prop the boots, the right side props boots and the left side props the boots and slides and set up on supporting the shield, and the right side props the boots and props the boots through propping the boots hydro-cylinder and be connected with the left side and prop the boots, and the right side props boots and the left side props the boots and can stretch into or retract in supporting the shield under the effect that props the boots hydro-cylinder.
A heading machine comprises a slag discharge system, a rear matched device and a main machine of the heading machine; and a support shield of the main machine of the development machine is connected with the rear corollary equipment.
The rear supporting equipment comprises at least one trolley, the trolley positioned at the foremost end is connected with the support shield through a dragging oil cylinder, and a supporting auxiliary system is arranged on the trolley.
The auxiliary system comprises an electric control system, a dust removal system, a hydraulic system and a water circulation system.
The slag discharging system adopts a belt conveyor, and the front part of the belt conveyor sequentially penetrates through the support shield and the driving system and extends into the cutter head; the rear part of the belt conveyor is positioned on the rear corollary equipment.
A construction method of a heading machine comprises the following steps:
s1: when the heading machine is heading: firstly, the propulsion oil cylinder is in a retraction state, the shoe supporting mechanism is tightly supported on the wall of the hole in a high-pressure manner, and propulsion supporting reaction force during tunneling is provided for the tunneling machine by means of friction force between the right shoe supporting mechanism and the left shoe supporting mechanism and between the right shoe supporting mechanism and the wall of the hole; then, the upper front shield is tightly supported on the wall of the hole under low pressure, so that the host vibration generated in the tunneling process is weakened; the driving system works to drive the cutter head to rotate; then, the propulsion oil cylinder stretches out at high pressure to push the split type front shield and the cutter head to tunnel forwards; the rock cut by the cutter head is conveyed to the tail part of the development machine by a belt conveyor and then conveyed out of the tunnel by a transport vehicle;
s2: when the heading machine changes steps: after the propulsion oil cylinder extends to the maximum stroke, the cutter head stops rotating, a right supporting shoe and a left supporting shoe of the supporting shoe mechanism are recovered into the supporting shield, the upper front shield is tightly supported on the wall of the hole at high pressure, and the traction supporting counter force is provided for the heading machine during the step changing by means of the friction force between the upper front shield and the wall of the hole; then, the propulsion oil cylinder retracts under high pressure, and the support shield, the shoe supporting mechanism and the rear matching equipment are pulled forwards;
s3: when the heading machine turns a little and turns direction and rolls: the front shield and the support shield are hinged through a propulsion oil cylinder which is arranged in a V shape, the telescopic direction of the propulsion oil cylinder is arranged in the circumferential direction of the front shield, and the front shield and the cutter head system are controlled to swing in all directions in the circumferential direction; when the heading machine turns: controlling a propulsion oil cylinder positioned in the reverse direction of the steering to extend out, and realizing small-turning direction adjustment of the heading machine; when the heading machine rolls: when the cutter head rotates to excavate the tunnel face and deflects under the action of torque force, the propulsion oil cylinder is controlled to stretch in a matched mode, and the compensation value of the deflection direction of the cutter head is adjusted to enable the cutter head to return to the set position to continue excavation.
The invention has the following beneficial effects: (1) the front shield is designed in a partitioning mode, the upper front shield can stabilize a cutter head and can provide a design form of a dragging supporting counter force of the tunneling machine, so that the tunneling machine can turn flexibly, and the tunneling efficiency is improved; (2) the propulsion oil cylinders are uniformly arranged in a V-shaped structure along the circumferential direction, can be controlled independently and can be controlled randomly in groups, and the cutter head is controlled to flexibly steer and correct rolling in real time, so that safe and high-quality tunneling is ensured; (3) compared with the existing full-face tunneling machine, the full-face tunneling machine can be used for tunnel construction with an ultra-small turning radius, the whole machine structure is simple, the equipment arrangement is reasonable, and the adaptability of the full-face tunneling machine is enhanced. (4) For the tunnel construction field such as mines, energy storage power stations and the like with short tunneling distance and small turning radius, the original drilling and blasting construction method is changed into the full-face tunneling machine construction, so that the tunneling efficiency can be improved, the construction environment can be improved, and the construction risk can be reduced.
Drawings
In order to illustrate the embodiments of the invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it being apparent that the drawings in the following description are only some embodiments of the invention, and that other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
FIG. 1: the invention relates to a front view of a full-face heading machine.
FIG. 2: the invention discloses a top view of a full-face heading machine.
FIG. 3: the invention relates to a main machine structure diagram of a full-face heading machine.
FIG. 4: fig. 1 is a sectional view taken along line a-a.
FIG. 5: fig. 1 is a sectional view taken along line B-B.
FIG. 6: fig. 1 is a cross-sectional view taken along line C-C.
FIG. 7: fig. 1, cross-sectional view D-D.
FIG. 8: and the main engine is in a super-small turning tunneling attitude schematic diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 3, in embodiment 1, a main unit of a tunneling machine includes a split type front shield 2 and a support shield 5, wherein the support shield 5 is located behind the split type front shield, and the split type front shield is divided into at least two sub-blocks which can move relatively. A driving system 3 is arranged inside the split type front shield 2, a cutter head 1 is arranged in the front of the driving system 3 and provides power for rotation of the cutter head, and the structure of the split type front shield is the same as that of a cutter head system of an existing heading machine. The rear part of the split type front shield 2 is connected with a support shield 5 through a propulsion oil cylinder 4 with a direction adjusting function, the propulsion oil cylinder can stretch and contract to drive the split type front shield and a cutter head system to swing, and the small turning direction adjustment of the cutter head system can be flexibly realized; the supporting shield 5 is internally provided with a shoe supporting mechanism 6 which can stretch and retract relative to the supporting shield and is used for supporting whether the tunnel wall is tight or not and providing support for forward tunneling of the tunneling machine.
Further, as shown in fig. 4 and 5, the split type anterior shield 2 includes an upper anterior shield 201 and a lower anterior shield 203, both the upper anterior shield 201 and the lower anterior shield 203 are semicircular shield bodies, and the upper anterior shield 201 is connected with the lower anterior shield 203 through a jacking cylinder 202 to form an annular shield body. The flexible end of jacking cylinder is connected with last front shield, and the stiff end of jacking cylinder is connected with lower front shield, and is flexible through jacking cylinder 202, goes up front shield 201 and can realize reciprocating. The plurality of the propulsion oil cylinders 4 are arranged along the circumferential direction of the support shield 5, two adjacent propulsion oil cylinders 4 are arranged in a V shape, namely, the propulsion oil cylinders are arranged between the front shield and the support shield and are uniformly distributed in a ring W shape, the telescopic ends of the propulsion oil cylinders 4 are connected with the upper front shield 201 or the lower front shield 203, and the propulsion oil cylinders can be controlled independently or can be controlled randomly in groups. The telescopic direction of the propulsion oil cylinder is arranged in the circumferential direction of the front shield, and the front shield and the cutter head system are controlled to swing in all directions in the circumferential direction, so that small-radius turning and real-time rolling correction are realized.
The driving system is arranged inside the split type front shield, and the telescopic end of the propulsion oil cylinder is connected with a driving box of the driving system. Four driving motors can be arranged on a driving box of the driving system to provide power for the rotation of the cutter head. The cutter head 1 is provided with a full-section disc cutter 101, and the driving motor is arranged at the rear part of the split type front shield 2 and is positioned at the periphery of the slag discharging system, so that the slag discharging is not influenced.
Further, as shown in fig. 7, the shoe supporting mechanism 6 includes a right supporting shoe 601 and a left supporting shoe 603, the right supporting shoe 601 and the left supporting shoe 603 are slidably disposed on both sides of the support shield 5, the right supporting shoe 601 is connected to the left supporting shoe 603 through a shoe supporting cylinder 602, and the right supporting shoe 601 and the left supporting shoe 603 can extend into or retract into the support shield 5 under the action of the shoe supporting cylinder 602. The shoe supporting oil cylinder 602 is respectively connected with the right supporting shoe 601 and the left supporting shoe 603 through pin shafts, and the stretching of the shoe supporting oil cylinder 602 can realize the left and right movement of the right supporting shoe 601 and the left supporting shoe 603, so as to realize the tight supporting of the wall of the hole.
As shown in fig. 1 and 3, in embodiment 2, the heading machine comprises a main machine, a slag tapping system and rear supporting equipment, wherein the slag tapping system is used for transporting slag soil cut by a cutter head. The back corollary equipment is an auxiliary system for the heading machine to smoothly heading, such as an electric control system, a dust removal system, a cooling system, a lubricating system and the like. The support shield 5 is connected with the rear corollary equipment, and the support shield drags the rear corollary equipment to move forwards synchronously in the forward movement process of the heading machine.
Further, the slag discharging system adopts a belt conveyor 7, the front part of the belt conveyor 7 sequentially penetrates through the support shield 5 and the driving box of the driving system 3 and extends into the cutter head 1, and the belt conveyor 7 is positioned between the driving motors; the rear part of the belt conveyor 7 is located on the rear corollary equipment. Namely, the belt conveyor 7 adopts an integrated belt design, the front end of the belt conveyor 7 extends into the cutter head 1, and the rear end of the belt conveyor 7 extends to the tail of the equipment. The belt conveyor 7 can directly convey the rocks cut by the cutterhead 1 to the tail of the equipment and then convey the rocks out of the tunnel by a transport vehicle in the tunnel.
Further, as shown in fig. 2, the rear support equipment includes five trolleys, i.e., a first trolley 9, a second trolley 10, a third trolley 11, a fourth trolley 12, and a fifth trolley 13, which are sequentially disposed behind the support shield, the trolley (the first trolley 9) located at the foremost end is connected to the support shield 5 through a drag cylinder 8, the trolley is a sliding shoe trolley or a traveling wheel trolley, and the trolleys are connected to each other through a pin shaft. The trolley is provided with a matched auxiliary system. The auxiliary system comprises an electric control system, a dust removal system, a hydraulic system and a water circulation system. The dust removal system comprises a dust removal fan 16, an air storage tank 14, an air compressor 15 and an air drum storage 25, the electric control system comprises a cable storage box 20, a transformer 18, a frequency converter 23 and a power distribution cabinet 22, and the electric control system work together to provide power for the whole equipment; the hydraulic system comprises a grease pump 21 and a hydraulic pipeline, and a water cooling pump station 24 and a sewage tank 19 are arranged in the water circulation system. The air storage tank 14 is an equipment air storage unit and can store compressed air generated by the air compressor 15 and provide power sources for the grease pump 21, the pneumatic ball valve and the pneumatic tool; the dust removal fan 16 can suck out the air containing dust in the cutter head through a fixed air pipe, and the air is filtered and dedusted by the dust removal fan and then discharged to the tail part of the equipment; the hydraulic pump station 17 can provide power sources for hydraulic actuating mechanisms such as the propulsion oil cylinder 4, the dragging oil cylinder 8, the belt conveyor 7 and the like; the grease pump 21 provides grease lubrication for the drive system 3 and the mechanical lubrication points of the equipment. The internal water cooling pump station 24 supplies circulating cooling water to the driving system 3, the air compressor 15 and the frequency converter 23 for cooling; the air duct storage 25 is connected with the air ducts in the tunnel and can store the air ducts with a certain length, and the air ducts synchronously extend in the process of equipment tunneling. The sewage tank 19 is a relay water tank, sewage generated during equipment tunneling is pumped into the sewage tank 19 by a primary sewage pump arranged in the front of the main machine, and then the sewage is discharged out of the tunnel by a secondary sewage pump arranged in the sewage tank. The application only shows the function that must dispose for realizing little turning radius, for improving equipment adaptability, also can dispose supporting systems such as roofbolter, spout and mix the manipulator and use.
The construction method of the heading machine according to the embodiment 3 and the embodiment 2 includes the following steps:
s1: when the heading machine is heading: firstly, the propulsion oil cylinder 4 is in a retraction state, the shoe supporting mechanism 6 is tightly supported on the wall of the hole under high pressure, and propulsion supporting reaction force during tunneling is provided for the tunneling machine by means of friction force between the right supporting shoe 601, the left supporting shoe 603 and the wall of the hole; then, the upper front shield 201 is tightly supported on the wall of the hole at low pressure, and the host vibration generated in the tunneling process is weakened; the driving system 3 works to drive the cutter head 1 to rotate; then, the propulsion oil cylinder 4 stretches out at high pressure to push the split type front shield 2 and the cutter head 1 to tunnel forwards; the rock cut by the cutter head 1 is conveyed to the tail part of the development machine by a belt conveyor 7 and then conveyed out of the tunnel by a transport vehicle;
s2: when the heading machine changes steps: after the propulsion oil cylinder 4 extends to the maximum stroke, the cutter head 1 stops rotating, the right supporting shoes 601 and the left supporting shoes 603 of the shoe supporting mechanism 6 are recovered into the supporting shield 5, the upper front shield 201 is tightly supported on the wall of the hole in a high-pressure manner, and the traction supporting counter force is provided for the heading machine during the step changing process by means of the friction force between the upper front shield 201 and the wall of the hole; then, the propulsion oil cylinder 4 retracts under high pressure, and the support shield 5, the shoe supporting mechanism 6 and the rear matched equipment are pulled forwards;
s3: when the heading machine turns a small turn and rolls, as shown in fig. 8: the front shield 2 is hinged with the support shield 5 through a propulsion oil cylinder which is arranged in a V shape, the telescopic direction of the propulsion oil cylinder is arranged in the circumferential direction of the front shield 2, and the front shield 2 and the cutter head system are controlled to swing in all directions in the circumferential direction, namely the front shield 2 and the cutter head system are driven to swing correspondingly through the telescopic of the propulsion oil cylinders at different positions; when the heading machine turns: and controlling the propulsion oil cylinder 4 in the reverse direction of the steering to extend, for example, to turn left, controlling the telescopic oil cylinder on the right side to extend by a larger amount than the oil cylinder on the left side, and realizing small-turning steering of the heading machine. When the heading machine rolls: when the cutter head rotates to excavate the tunnel face, the propelling oil cylinder is controlled to be matched and stretched when the cutter head deflects under the action of torsion, the compensation value of the deflection direction of the cutter head is adjusted, the cutter head is corrected, and the cutter head returns to the set position to continue excavation.
The other structure is the same as embodiment 2.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (11)
1. A main frame of a heading machine comprises a driving system (3), and is characterized in that: the device is characterized by further comprising a split type front shield (2) and a support shield (5), wherein a propelling mechanism with a direction adjusting function is arranged between the split type front shield (2) and the support shield (5).
2. A host machine of a heading machine according to claim 1, wherein: the propelling mechanism is a propelling oil cylinder (4); a driving system (3) is arranged inside the split type front shield (2), a cutter head (1) is arranged at the front part of the driving system (3), and the rear part of the driving system (3) or the split type front shield (2) is connected with a support shield (5) through a propulsion oil cylinder (4); a shoe supporting mechanism (6) is arranged in the support shield (5).
3. A tunnelling machine host machine according to claim 1 or 2, which is characterized in that: the split type front shield (2) comprises an upper front shield (201) and a lower front shield (203), wherein the upper front shield (201) is connected with the lower front shield (203) through a jacking oil cylinder (202) to form an annular shield body.
4. A host machine of a heading machine according to claim 3, wherein: the propulsion oil cylinders (4) are circumferentially arranged along the support shield (5), two adjacent propulsion oil cylinders (4) are arranged in a V shape, and the telescopic ends of the propulsion oil cylinders (4) are connected with the upper front shield (201) and the lower front shield (203).
5. A host machine of a heading machine according to claim 4, wherein: the full-section disc cutter (101) is arranged on the cutter head (1), the driving system (3) is arranged inside the split type front shield (2), and the telescopic end of the propulsion oil cylinder (4) is connected with the driving box of the driving system (3).
6. The main unit of the development machine according to any one of claims 2, 4 and 5, characterized in that: the shoe supporting mechanism (6) comprises a right supporting shoe (601) and a left supporting shoe (603), the right supporting shoe (601) and the left supporting shoe (603) are arranged on the supporting shield (5) in a sliding mode, the right supporting shoe (601) is connected with the left supporting shoe (603) through a shoe supporting oil cylinder (602), and the right supporting shoe (601) and the left supporting shoe (603) can extend into or retract into the supporting shield (5) under the action of the shoe supporting oil cylinder (602).
7. The utility model provides a heading machine, includes slag discharging system and back corollary equipment, its characterized in that: the main frame of the heading machine according to claim 6; a support shield (5) of the main machine of the development machine is connected with the back corollary equipment.
8. The heading machine of claim 7, wherein: the rear supporting equipment comprises at least one trolley, the trolley positioned at the foremost end is connected with the support shield (5) through a dragging oil cylinder (8), and a supporting auxiliary system is arranged on the trolley.
9. The heading machine of claim 8, wherein: the auxiliary system comprises an electric control system, a dust removal system, a hydraulic system and a water circulation system.
10. The heading machine of claim 7, wherein: the slag discharging system adopts a belt conveyor (7), and the front part of the belt conveyor (7) sequentially penetrates through the support shield (5) and the driving system (3) and extends into the cutter head (1); the rear part of the belt conveyor (7) is positioned on the rear corollary equipment.
11. A construction method of a heading machine according to claim 7, 9 or 10, characterized in that: the method comprises the following steps:
s1: when the heading machine is heading: firstly, the propulsion oil cylinder (4) is in a retraction state, the shoe supporting mechanism (6) is tightly supported on the wall of the hole in a high-pressure manner, and propulsion supporting reaction force during tunneling is provided for the tunneling machine by means of friction force between the right shoe supporting mechanism (601), the left shoe supporting mechanism (603) and the wall of the hole; then, the upper front shield (201) is tightly supported on the wall of the hole at low pressure, so that the host machine vibration generated in the tunneling process is weakened; the driving system (3) works to drive the cutter head (1) to rotate; then, the propulsion oil cylinder (4) stretches out at high pressure to push the split type front shield (2) and the cutter head (1) to tunnel forwards; the rock cut by the cutter head (1) is conveyed to the tail part of the development machine by a belt conveyor (7) and then conveyed out of the tunnel by a transport vehicle;
s2: when the heading machine changes steps: after the propulsion oil cylinder (4) extends to the maximum stroke, the cutter head (1) stops rotating, a right supporting shoe (601) and a left supporting shoe (603) of a shoe supporting mechanism (6) are recovered into a supporting shield (5), an upper front shield (201) is tightly supported on the wall of the hole at high pressure, and a traction supporting counter force is provided for the heading machine during the step changing process by means of the friction force between the upper front shield (201) and the wall of the hole; then, the propulsion oil cylinder (4) retracts under high pressure, and the support shield (5), the shoe supporting mechanism (6) and the rear matching equipment are pulled forwards;
s3: when the heading machine turns a little and turns direction and rolls: the front shield (2) is hinged with the support shield (5) through a propulsion oil cylinder which is arranged in a V shape, the telescopic direction of the propulsion oil cylinder is arranged in the circumferential direction of the front shield (2), and the front shield (2) and the cutter head system are controlled to swing in all directions in the circumferential direction; when the heading machine turns: controlling a propulsion oil cylinder (4) positioned in the reverse direction of the steering to extend out, and realizing small-turning steering of the heading machine; when the heading machine rolls: when the cutter head rotates to excavate the tunnel face and deflects under the action of torque force, the propulsion oil cylinder is controlled to stretch in a matched mode, and the compensation value of the deflection direction of the cutter head is adjusted to enable the cutter head to return to the set position to continue excavation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020102056543 | 2020-03-23 | ||
| CN202010205654.3A CN111305862A (en) | 2020-03-23 | 2020-03-23 | Compact ultra-small turning radius full-face tunnel boring machine and construction method |
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| Publication Number | Publication Date |
|---|---|
| CN111520153A true CN111520153A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010205654.3A Pending CN111305862A (en) | 2020-03-23 | 2020-03-23 | Compact ultra-small turning radius full-face tunnel boring machine and construction method |
| CN202010596710.0A Pending CN111520153A (en) | 2020-03-23 | 2020-06-28 | Heading machine and construction method |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010205654.3A Pending CN111305862A (en) | 2020-03-23 | 2020-03-23 | Compact ultra-small turning radius full-face tunnel boring machine and construction method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217089A (en) * | 2021-06-27 | 2021-08-06 | 中国矿业大学 | Autonomous traveling mechanism of deep coal fluidized mining equipment |
| CN113464153A (en) * | 2021-07-30 | 2021-10-01 | 太原理工大学 | Compact full-face rock tunnel boring machine suitable for small-diameter rock tunnel |
| CN114198110A (en) * | 2021-12-20 | 2022-03-18 | 中铁工程装备集团有限公司 | Heading machine and material transferring method thereof |
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| CN111663947A (en) * | 2020-07-17 | 2020-09-15 | 中国铁建重工集团股份有限公司 | Inclined shaft TBM suitable for small curve turning |
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| CN113464153B (en) * | 2021-07-30 | 2023-04-07 | 太原理工大学 | Compact full-face rock tunnel boring machine suitable for small-diameter rock tunnel |
| CN114198110A (en) * | 2021-12-20 | 2022-03-18 | 中铁工程装备集团有限公司 | Heading machine and material transferring method thereof |
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Application publication date: 20200811 |