Vertical shaft heading machine for large-diameter vertical shaft and construction method

Abstract

The invention discloses a vertical shaft heading machine for a large-diameter vertical shaft and a construction method, and relates to the field of underground engineering, the vertical shaft heading machine comprises a heading machine main machine, the bottom end of the heading machine main machine is provided with a hollow conical cutter head, and the hollow conical cutter head cuts slag stones in a mountain; a bamboo joint pilot hole is formed in the mountain body, a bamboo joint tray is arranged in the bamboo joint pilot hole, and a first steel wire rope and a second steel wire rope are arranged on the outer side of the top end of the bamboo joint tray. An automatic detacher is arranged at the bottom end of the bamboo joint tray, a series of slag collecting hoppers are arranged in the middle of the top end of the bamboo joint tray, the first steel wire rope is used for lifting and lowering the series of slag collecting hoppers and the bamboo joint tray, and the second steel wire rope is used for placing the bamboo joint tray at the bamboo joint position of a bamboo joint pilot hole. Through interaction of the heading machine and slag stone conveying, efficient and reasonable use of the slag collecting hopper is guaranteed, overflow or idling is avoided, it is guaranteed that vertical drilling of the vertical shaft heading machine and outward transportation of slag stone are conducted at the same time and operated in parallel, and the overall construction efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of underground engineering. Specifically, it relates to a shaft boring machine and a construction method for large-diameter shafts. Background Art

[0002] With the continuous development of the economy, shaft construction is increasingly widely used in many fields such as highway tunnels, railway tunnels, resource exploration, and mineral mining. A shaft boring machine is a relatively safe and efficient shaft construction equipment at present. It mainly realizes the full-section excavation of the shaft through a cutterhead. Since the boring direction of the shaft cutterhead is consistent with the direction of gravity, the muck cannot automatically accumulate, which is not conducive to the muck discharge of the cutterhead. Therefore, the muck discharge capacity is the key factor affecting the shaft excavation efficiency.

[0003] The shaft boring machine can achieve continuous muck discharge by using a slurry pump. However, the existing equipment has relatively low muck discharge efficiency, and the ability of the slurry pump to pass through the muck particle size is limited. At the same time, it is very difficult for the existing muck discharge structure to limit the muck particle size, which often causes the slurry pipe to be blocked. It is necessary to repeatedly stop the machine to clean the muck, resulting in low muck discharge efficiency. Moreover, the excavation device is prone to agglomeration when working in a slurry environment, resulting in low tunneling efficiency. Therefore, how to improve the muck discharge efficiency during shaft boring has become an urgent problem to be solved at present.

[0004] In response to the problems in the related art, no effective solution has been proposed yet. Summary of the Invention

[0005] (I) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the present invention provides a shaft boring machine and a construction method for large-diameter shafts, which aim to improve the high-efficiency construction during the construction process of the shaft boring machine, and further solve the problem that it is easy to form mud cakes when working in a slurry environment during tunneling, resulting in low tunneling efficiency.

[0007] (II) Technical Solutions

[0008] To achieve the above-mentioned purpose of improving the high-efficiency construction during the construction process of the shaft boring machine, the specific technical solutions adopted by the present invention are as follows:

[0009] In a first aspect, the present invention provides a shaft tunneling machine for large-diameter shafts. The shaft tunneling machine includes a tunneling machine main body, and a hollow conical cutter head is provided at the bottom end of the tunneling machine main body. The hollow conical cutter head cuts the slag stones inside the mountain body. A bamboo joint pilot hole is provided inside the mountain body, and a bamboo joint tray is arranged inside the bamboo joint pilot hole. A first steel wire rope and a second steel wire rope are arranged on the outer side of the top end of the bamboo joint tray. An automatic unhooking device is arranged at the bottom end of the bamboo joint tray, and a series of slag collection hoppers are arranged in the middle of the top end of the bamboo joint tray. The first steel wire rope is used to lift and lower the series of slag collection hoppers and the bamboo joint tray, and the second steel wire rope is used to place the bamboo joint tray at the bamboo joint position of the bamboo joint pilot hole.

[0010] Preferably, the plane of the hollow conical cutter head is an annular structure, the middle part is a hollow structure, and the diameter of the hollow conical cutter head is the same as the diameter of the shaft.

[0011] Preferably, the hollow diameter in the middle of the hollow conical cutter head is the same as the diameter of the bamboo joint pilot hole, and the hollow conical cutter head protrudes along the tunneling direction to form a cone.

[0012] Preferably, the bamboo joint tray is composed of steel plates with a diameter of 2.5 m spliced together.

[0013] Preferably, the bamboo joint pilot hole is composed of a pilot hole and a bamboo joint hole, the diameter of the pilot hole is 2 m, the diameter of the bamboo joint hole is 3 m, and the distance between any two groups of bamboo joint pilot holes is 10 m.

[0014] In a second aspect, the present invention also provides a construction method for a shaft tunneling machine for large-diameter shafts. The construction method includes:

[0015] S1. Using a drill and an excavator to construct a bamboo joint pilot hole and a shaft pilot shaft at a designated location, and assembling the tunneling machine main body;

[0016] S2. Introducing the tunneling machine main body into the shaft pilot shaft, and debugging the control state of the tunneling machine main body;

[0017] S3. Starting the tunneling machine main body and the hollow conical cutter head to perform shaft tunneling construction operations, and using the bamboo joint tray and the series of slag collection hoppers to carry out slag collection and transportation processing.

[0018] Preferably, using a drill and an excavator to construct a bamboo joint pilot hole and a shaft pilot shaft at a designated location, and assembling the tunneling machine main body includes:

[0019] S11. Using a drill rig to perform drilling operations at the center position of the shaft plane, and stopping the work after meeting the drilling requirements of the bamboo joint pilot hole to obtain the bamboo joint pilot hole;

[0020] S12. Using an excavator to perform excavation work within a preset range of the shaft plane, generating a shaft with a diameter of 9 m and a depth of 5 m according to the excavation process to obtain the shaft pilot shaft, and stopping the excavation work;

[0021] S13. Use a crane to load the hollow conical cutter head onto the main body of the tunneling machine to obtain a shaft tunneling machine, and preliminarily debug the matrix state of the shaft tunneling machine through an external control platform.

[0022] Preferably, start the main body of the tunneling machine and the hollow conical cutter head to perform shaft tunneling construction operations, and use the bamboo joint tray and the series of slag collection hoppers for slag collection and transportation, including:

[0023] S31. Use the first steel wire rope and the automatic decoupling device to install the bamboo joint tray and the series of slag collection hoppers inside the bamboo joint pilot hole;

[0024] S32. Start the shaft tunneling machine to start tunneling work. Use the hollow conical cutter head to cut the slag and stones inside the mountain body, and use the series of slag collection hoppers to receive the slag and stones;

[0025] S33. When the weight in the series of slag collection hoppers reaches the set value, lift the series of slag collection hoppers to the top of the shaft guide shaft for slag unloading. At the same time, the shaft tunneling machine continues to tunnel, and use the remaining series of slag collection hoppers to receive the slag and stones until the construction work is completed.

[0026] Preferably, using the first steel wire rope and the automatic decoupling device to install the bamboo joint tray and the series of slag collection hoppers inside the bamboo joint pilot hole includes:

[0027] S311. Use the first steel wire rope to lower the bamboo joint tray to the bamboo joint of the bamboo joint pilot hole, and place the bamboo joint tray at the bamboo joint position of the bamboo joint pilot hole by lifting the second steel wire rope;

[0028] S312. After the position of the bamboo joint tray is in place, loosen the second steel wire rope and disconnect the automatic decoupling device connected to the bamboo joint tray;

[0029] S313. Place the series of slag collection hoppers inside the bamboo joint pilot hole through the hollow part of the shaft tunneling machine and place them on the top of the bamboo joint tray.

[0030] Preferably, the series of slag collection hoppers are composed of several groups of slag collection hoppers. When the series of slag collection hoppers receive slag and stones, when the weight of one group of slag collection hoppers reaches the set value, it is lifted to the top of the shaft guide shaft for slag unloading. At the same time, another group of slag collection hoppers continues to receive slag and stones, and so on until all the series of slag collection hoppers are filled with slag and stones.

[0031] (III) Beneficial effects

[0032] Compared with the prior art, the present invention provides a shaft tunneling machine and a construction method for large-diameter shafts, having the following beneficial effects:

[0033] (1) The shaft tunneling machine and construction method for large-diameter shaft construction proposed by the present invention adopt the method of preferentially constructing a bamboo joint pilot hole, setting a hollow conical cutter head and a slag conveying system, giving full play to the advantage of continuous slag discharge, thereby effectively improving the slag discharge efficiency, ensuring the efficient and reasonable use of the slag collecting hopper, avoiding overflow or idleness, enhancing the overall construction efficiency, realizing efficient construction during the construction process of the shaft tunneling machine, being applicable to the construction of shaft tunneling machines with medium and large diameters, and having strong practicability.

[0034] (2) Through the interaction between the tunneling machine and the slag conveying, the present invention ensures the efficient and reasonable use of the slag collecting hopper, avoids overflow or idleness, ensures the simultaneous and parallel operation of the vertical drilling of the shaft tunneling machine and the external transportation of slag, and enhances the overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 is a schematic structural diagram of a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0037] Figure 2 is a schematic structural diagram of a bamboo joint pilot hole in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a hollow conical cutter head in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0039] Figure 4 is a sectional view of a hollow conical cutter head in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0040] Figure 5 is a schematic structural diagram of a bamboo joint tray in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0041] Figure 6 is a schematic structural diagram of a series of slag collecting hoppers in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0042] Figure 7 is a schematic structural diagram of an automatic unhooking device in a shaft tunneling machine for large-diameter shafts according to an embodiment of the present invention;

[0043] Figure 8It is a flowchart of the construction method of a shaft boring machine for large-diameter shafts according to an embodiment of the present invention.

[0044] In the figure:

[0045] 1. Main body of the boring machine; 2. Hollow conical cutter head; 3. Mountain body; 4. Bamboo joint pilot hole; 5. Bamboo joint tray; 6. Steel wire rope 1; 7. Steel wire rope 2; 8. Automatic hook release; 9. Series of slag collection hoppers. Detailed implementation manners

[0046] To further illustrate each embodiment, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. They are mainly used to illustrate the embodiments and can be combined with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0047] According to an embodiment of the present invention, a shaft boring machine and a construction method for large-diameter shafts are provided.

[0048] Now, the present invention will be further described in conjunction with the accompanying drawings and specific implementation manners. As Figures 1 - 7 shown, the shaft boring machine for large-diameter shafts according to an embodiment of the present invention includes a main body 1 of the boring machine. A hollow conical cutter head 2 is provided at the bottom end of the main body 1 of the boring machine. The hollow conical cutter head 2 cuts the slag stones inside the mountain body 3. A bamboo joint pilot hole 4 is provided inside the mountain body 3. A bamboo joint tray 5 is provided inside the bamboo joint pilot hole 4. A steel wire rope 1 and a steel wire rope 2 are provided on the outer side of the top end of the bamboo joint tray 5. An automatic hook release 8 is provided at the bottom end of the bamboo joint tray 5. A series of slag collection hoppers 9 are provided in the middle of the top end of the bamboo joint tray 5. The steel wire rope 1 is used to lift and lower the series of slag collection hoppers 9 and the bamboo joint tray 5. The steel wire rope 2 is used to place the bamboo joint tray 5 at the bamboo joint position in the bamboo joint pilot hole 4.

[0049] In one embodiment, the plane of the hollow conical cutter head 2 is a ring structure, the middle part is a hollow structure, and the diameter of the hollow conical cutter head 2 is the same as the diameter of the shaft.

[0050] In one embodiment, the hollow diameter in the middle of the hollow conical cutter head 2 is the same as the diameter of the bamboo joint pilot hole 4, and the hollow conical cutter head 2 protrudes along the boring direction to form a cone.

[0051] In one embodiment, the bamboo joint tray 5 is composed of steel plates with a diameter of 2.5 m spliced together.

[0052] In one embodiment, the bamboo joint pilot hole 4 is composed of a pilot hole and a bamboo joint hole. The diameter of the pilot hole is 2 m, the diameter of the bamboo joint hole is 3 m, and the distance between any two groups of bamboo joint pilot holes 4 is 10 m.

[0053] As Figures 1 to 7 shown, it should be noted that the shaft tunneling machine includes a tunneling machine main body 1, a control system, which belongs to the prior art and will not be elaborated here, a hollow conical cutter head 2, and a slag conveying system in four parts.

[0054] During the control process of the tunneling machine main body 1, the amount of slag, the operating state of the tunneling machine main body 1, etc. are used as state inputs, and the tunneling speed, torque, cutter head rotation speed, etc. of the tunneling machine main body 1 are used as control actions. While maintaining the tunneling efficiency, the use efficiency of the slag collection hopper is optimized; through the interaction between the tunneling machine main body 1 and the slag conveying system, the control strategy is continuously iteratively optimized, and according to the output optimal control strategy, the control parameters of the tunneling machine are adjusted in real time.

[0055] The cutter head plane of the hollow conical cutter head 2 is annular, vertical is conical, and the middle is hollow. The cutter head diameter is the designed shaft diameter, and the diameter of the hollow part is the diameter of the pre-drilled pilot hole, which is 2.0 m. The cutter head body protrudes in the tunneling direction to form a cone.

[0056] The slag conveying system is composed of a wire rope 1-6, a wire rope 2-7, an automatic decoupling device 8, a slag collection platform, and a slag discharging platform; the wire rope 1-6 is used to lift and lower the slag collection hopper and the bamboo joint tray 5; the slag collection platform is formed by the bamboo joint tray 5, and the bamboo joint tray 5 is assembled by steel plates with a diameter of 2.5 m, divided into 3 parts according to a central angle of 120°, and the bamboo joint tray 5 is placed at the bamboo joint of the bamboo joint pilot hole 4 by tensioning the wire rope 2-7.

[0057] The series of slag collection hoppers 9 in the slag collection platform are composed of a group of slag collection hoppers, including No. 1, No. 2, No. 3, No. 4,..., No. N slag collection hoppers. In specific applications, pressure sensors are installed at the bottom of the slag collection hoppers, not shown in the figure, to monitor the amount of slag in real time. When the weight of the slag in the slag collection hopper > 90% of the capacity, a lifting signal is triggered, and the number of slag collection hoppers is determined comprehensively according to the shaft excavation depth, the amount of slag per unit depth of excavation, and the time required for lifting and lowering.

[0058] As Figure 8 shown, according to another embodiment of the present invention, there is also provided a construction method for a shaft tunneling machine for large-diameter shafts, and the construction method includes:

[0059] S1. Use a drill and an excavator to construct a bamboo joint pilot hole 4 and a shaft pilot shaft at a designated location, and assemble the tunneling machine main body 1;

[0060] S2. Introduce the tunneling machine main body 1 into the shaft pilot shaft, and debug the control state of the tunneling machine main body 1;

[0061] S3. Start the tunneling machine main body 1 and the hollow conical cutter head 2 to perform shaft tunneling construction operations, and use the bamboo joint tray 5 and the series of slag collection hoppers 9 for slag collection and conveying treatment.

[0062] In one embodiment, a drill rig and an excavator are used to construct a bamboo joint pilot hole 4 and a shaft guide shaft at a specified location, and the main tunneling machine 1 is assembled, including:

[0063] S11. Use the drill rig to carry out drilling work at the center position of the shaft plane, and stop working after meeting the drilling requirements of the bamboo joint pilot hole 4 to obtain the bamboo joint pilot hole 4;

[0064] S12. Use the excavator to carry out excavation work within the preset range of the shaft plane, generate a shaft guide shaft with a diameter of 9 m and a depth of 5 m according to the excavation process, and stop the excavation work;

[0065] S13. Use a crane to load the hollow conical cutter head 2 onto the main tunneling machine 1 to obtain a shaft tunneling machine, and preliminarily debug the matrix state of the shaft tunneling machine through an external control platform.

[0066] In one embodiment, start the main tunneling machine 1 and the hollow conical cutter head 2 to perform shaft tunneling construction operations, and use the bamboo joint tray 5 and the series of slag collection hoppers 9 for slag collection and transportation, including:

[0067] S31. Use the first steel wire rope 6 and the automatic decoupling device 8 to install the bamboo joint tray 5 and the series of slag collection hoppers 9 inside the bamboo joint pilot hole 4;

[0068] S32. Start the shaft tunneling machine to start tunneling work. Use the hollow conical cutter head 2 to cut the slag stones inside the mountain body 3, and use the series of slag collection hoppers 9 to receive the slag stones;

[0069] S33. When the weight in the series of slag collection hoppers 9 reaches the set value, lift the series of slag collection hoppers 9 to the top of the shaft guide shaft to unload the slag. At the same time, the shaft tunneling machine continues to tunnel, and use the remaining series of slag collection hoppers 9 to receive the slag stones until the construction work is completed.

[0070] In one embodiment, using the first steel wire rope 6 and the automatic decoupling device 8 to install the bamboo joint tray 5 and the series of slag collection hoppers 9 inside the bamboo joint pilot hole 4 includes:

[0071] S311. Use the first steel wire rope 6 to lower the bamboo joint tray 5 to the bamboo joint of the bamboo joint pilot hole 4, and place the bamboo joint tray 5 at the bamboo joint position of the bamboo joint pilot hole 4 by pulling up the second steel wire rope 7;

[0072] S312. After the bamboo joint tray 5 is in place, loosen the second steel wire rope 7 and disconnect the automatic decoupling device 8 connected to the bamboo joint tray 5;

[0073] S313. Place the series of slag collection hoppers 9 inside the bamboo joint pilot hole 4 through the hollow part of the shaft tunneling machine and place them on the top of the bamboo joint tray 5.

[0074] In one embodiment, the series slag collecting hopper 9 is composed of several groups of slag collecting hoppers. When the series slag collecting hopper 9 receives slag and stones, when the weight of one group of slag collecting hoppers reaches the set value, it is lifted to the top of the shaft guide shaft for slag discharging, and at the same time, another group of slag collecting hoppers continues to receive slag and stones, and so on until the series slag collecting hopper 9 is full of slag and stones.

[0075] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0076] Step 1: Construct the bamboo joint pilot hole;

[0077] Before shaft construction, first construct the bamboo joint pilot hole 4. The diameter of the pilot hole is 2.0 m, the diameter at the bamboo joint is 3.0 m, and the bamboo joint spacing is 10.0 m. Use a drill rig equipped with a drill bit to carry out drilling work at the center position of the shaft plane. Drill the pilot hole to reach the designed depth of the shaft. During the tunneling process of the vertical tunneling machine, the series slag collecting hopper * is placed in the pilot hole to collect the cut slag and stones.

[0078] At the same time, use an excavator engineering vehicle to manually excavate the guide shaft adjacent to the ground, and excavate a shaft with a diameter of 9 m and a depth of 5 m to form a shaft guide shaft.

[0079] The plane of the hollow conical cutter head 2 is annular, conical in the vertical direction, and hollow in the middle. The diameter of the cutter head is the designed diameter of the shaft, and the diameter of the hollow part is the diameter of the pre-drilled pilot hole, which is 2.0 m. The cutter head body protrudes in the tunneling direction to form a cone. Use a crane for cooperation to complete the assembly work of the shaft tunneling machine. At the same time, install the control platform of the shaft tunneling machine and debug its system. Use a crane to hoist the installed shaft tunneling machine into the guide shaft and debug the shaft tunneling machine again.

[0080] Step 2: Install the bamboo joint tray and the series slag collecting hopper;

[0081] The bamboo joint tray 5 is put into the bamboo joint of the bamboo joint pilot hole 4 through the wire rope 6. By pulling up the wire rope 7, the bamboo joint tray 5 is placed at the bamboo joint position. The lower end of the wire rope 7 is connected to the bamboo joint tray 5 through the automatic hook remover 8. After the bamboo joint tray 5 is in place, loosen the wire rope 7, and the automatic hook remover 8 unhooks.

[0082] The slag collecting hopper is placed in the bamboo joint pilot hole 4 through the hollow part in the middle of the shaft tunneling machine and placed on the bamboo joint tray 5. The bottom of the series slag collecting hopper 9 is equipped with a pressure sensor to monitor the amount of slag and stones in real time. After the slag and stones are full, the sensor sends a signal to control the lifting of the slag collecting hopper.

[0083] Step 3: Carry out tunneling construction with the shaft tunneling machine;

[0084] Start the shaft tunneling machine for tunneling. The crushed stones slide down along the conical slope of the cutter head into the slag collection hopper placed in the bamboo joint pilot hole 4 in advance. When the slag collection hopper is full, the pressure sensor at the bottom of the hopper sends a signal, and the slag collection hopper is lifted. During this period, the vertical tunneling machine continues to tunnel. At the same time, the amount of crushed stones, the operating state of the tunneling machine, etc. are used as state inputs, and the tunneling speed, torque, cutter head rotation speed, etc. of the tunneling machine are used as control actions. According to the real-time slag transportation volume, key parameters such as the tunneling speed and torque of the tunneling machine are optimized, so as to ensure the efficient and reasonable use of the slag collection hopper, and avoid overflow or idleness.

[0085] When the vertical tunneling machine tunnels to the bamboo joint of the bamboo joint pilot hole 4, place the bamboo joint tray 5 into the next bamboo joint in the pilot hole, and place a series of slag collection hoppers 9 on the bamboo joint tray 5. The crushed stones slide into the No. 1 hopper until the No. 1 hopper is full. The pressure sensor at the bottom of the slag collection hopper sends a signal to control the lifting of the No. 1 hopper. During the lifting of the No. 1 hopper, the No. 2 hopper starts to receive slag. When the No. 2 hopper is full, the pressure sensor at the bottom of the slag collection hopper sends a signal to control the lifting of the No. 2 hopper; and so on, until a group of slag collection hoppers are all full and are lifted in turn, and then lifted to the slag discharge platform at the top of the shaft for slag discharge, completing one slag discharge cycle.

[0086] In summary, by means of the above technical solutions of the present invention, the shaft tunneling machine and the construction method for large-diameter shaft construction proposed by the present invention adopt the method of preferentially constructing the bamboo joint pilot hole 4, setting the hollow conical cutter head 2 and the slag transportation system, giving full play to the advantage of continuous slag discharge, and thus effectively improving the slag discharge efficiency, ensuring the efficient and reasonable use of the slag collection hopper, avoiding overflow or idleness, improving the overall construction efficiency, realizing efficient construction during the construction process of the shaft tunneling machine, being applicable to the construction of shaft tunneling machines with medium and large diameters, and having strong practicability. The present invention pre-constructs the bamboo joint pilot hole 4 with the same depth as the designed depth of the shaft, places a series of slag collection hoppers 9 in the bamboo joint pilot hole 4 in advance, uses a shaft tunneling machine equipped with a hollow conical cutter head 2 to carry out shaft tunneling, and optimizes key parameters such as the tunneling speed and torque of the tunneling machine according to the real-time slag transportation volume, so as to ensure the efficient and reasonable use of the slag collection hopper, avoid overflow or idleness, and improve the overall construction efficiency, realizing efficient construction during the construction process of the shaft tunneling machine.

[0087] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0088] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A shaft tunneling machine for large-diameter shafts, characterized in that, The shaft tunneling machine includes a tunneling machine main body (1), and a hollow conical cutter head (2) is arranged at the bottom end of the tunneling machine main body (1), and the hollow conical cutter head (2) cuts the slag stone inside the mountain body (3); A bamboo joint pilot hole (4) is arranged inside the mountain body (3), a bamboo joint tray (5) is arranged inside the bamboo joint pilot hole (4), and a first steel wire rope (6) and a second steel wire rope (7) are arranged on the outer side of the top end of the bamboo joint tray (5); An automatic unhooking device (8) is arranged at the bottom end of the bamboo joint tray (5), a series of slag collection hoppers (9) are arranged in the middle of the top end of the bamboo joint tray (5), the first steel wire rope (6) is used for lifting and lowering the series of slag collection hoppers (9) and the bamboo joint tray (5), and the second steel wire rope (7) is used for placing the bamboo joint tray (5) at the bamboo joint position at the bamboo joint pilot hole (4).

2. The shaft tunneling machine for large-diameter shafts according to claim 1, characterized in that, The plane of the hollow conical cutter head (2) is an annular structure, the middle part is a hollow structure, and the diameter of the hollow conical cutter head (2) is the same as the diameter of the shaft.

3. The shaft tunneling machine for large-diameter shafts according to claim 1, characterized in that, The hollow diameter in the middle of the hollow conical cutter head (2) is the same as the diameter of the bamboo joint pilot hole (4), and the hollow conical cutter head (2) protrudes along the tunneling direction to form a cone.

4. The shaft tunneling machine for large-diameter shafts according to claim 1, characterized in that, The bamboo joint tray (5) is composed of steel plates with a diameter of 2.5 m spliced together.

5. A shaft tunneling machine for a large-diameter shaft according to claim 1, characterized in that, The bamboo joint pilot hole (4) is composed of a pilot hole and a bamboo joint hole, the diameter of the pilot hole is 2 m, the diameter of the bamboo joint hole is 3 m, and the distance between any two groups of the bamboo joint pilot holes (4) is 10 m.

6. A construction method for a shaft boring machine for large-diameter shafts, which is used to implement the construction of the shaft boring machine for large-diameter shafts described in any one of claims 1-5, characterized in that, This construction method includes: S1. Use a drill and an excavator to construct the bamboo joint pilot hole (4) and the shaft pilot shaft at a designated location, and assemble the tunneling machine main body (1); S2. Guide the tunneling machine main body (1) into the shaft pilot shaft, and debug the control state of the tunneling machine main body (1); S3. Start the tunneling machine main body (1) and the hollow conical cutter head (2) to perform shaft tunneling construction operations, and use the bamboo joint tray (5) and the series of slag collection hoppers (9) to perform slag collection and transportation processing.

7. The construction method of a shaft tunneling machine for large-diameter shafts according to claim 6, characterized in that The use of a drill and an excavator to construct the bamboo joint pilot hole (4) and the shaft pilot shaft at a designated location, and assemble the tunneling machine main body (1) includes: S11. Use a drill rig to carry out drilling work at the center position of the shaft plane, and stop working after meeting the drilling requirements of the bamboo joint pilot hole (4) to obtain the bamboo joint pilot hole (4); S12. Use an excavator to carry out excavation work within a preset range of the shaft plane, generate a shaft with a diameter of 9 m and a depth of 5 m according to the excavation process to obtain a shaft pilot shaft, and stop excavation work; S13. Use a crane to load the hollow conical cutter head (2) onto the tunneling machine main body (1) to obtain a shaft tunneling machine, and perform preliminary debugging on the matrix state of the shaft tunneling machine through an external control platform.

8. The construction method of a shaft boring machine for large-diameter shafts according to claim 7, characterized in that, The start of the tunneling machine main body (1) and the hollow conical cutter head (2) to perform shaft tunneling construction operations, and the use of the bamboo joint tray (5) and the series of slag collection hoppers (9) to perform slag collection and transportation processing includes: S31. Install the bamboo joint tray (5) and the series slag collecting hopper (9) inside the bamboo joint pilot hole (4) by using the first steel wire rope (6) and the automatic unhooking device (8). S32. Start the shaft tunneling machine for tunneling work. Use the hollow conical cutter head (2) to cut the slag stones inside the mountain body (3), and use the series slag collecting hopper (9) to receive the slag stones. S33. When the weight in the series slag collecting hopper (9) reaches the set value, lift the series slag collecting hopper (9) to the top of the shaft pilot shaft for slag discharging. At the same time, the shaft tunneling machine continues to tunnel, and use the remaining series slag collecting hoppers (9) to receive the slag stones until the construction work is completed.

9. The construction method of a shaft boring machine for large-diameter shafts according to claim 8, characterized in that, The installation of the bamboo joint tray (5) and the series slag collecting hopper (9) inside the bamboo joint pilot hole (4) by using the first steel wire rope (6) and the automatic unhooking device (8) includes: S311. Lower the bamboo joint tray (5) to the bamboo joint of the bamboo joint pilot hole (4) by using the first steel wire rope (6), and place the bamboo joint tray (5) at the bamboo joint position of the bamboo joint pilot hole (4) by lifting the second steel wire rope (7). S312. After the bamboo joint tray (5) is in place, loosen the second steel wire rope (7) and disconnect the automatic unhooking device (8) connected to the bamboo joint tray (5). S313. Place the series slag collecting hopper (9) inside the bamboo joint pilot hole (4) through the hollow part of the shaft tunneling machine and place it on the top of the bamboo joint tray (5).

10. The construction method of a shaft boring machine for large-diameter shafts according to claim 9, characterized in that, The series slag collecting hopper (9) is composed of several groups of slag collecting hoppers. When the series slag collecting hopper (9) receives slag stones, when the weight of one group of slag collecting hoppers reaches the set value, it is lifted to the top of the shaft pilot shaft for slag discharging. At the same time, another group of slag collecting hoppers continues to receive slag stones, and so on until all the series slag collecting hoppers (9) are filled with slag stones.

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