Slurry shield tunneling machine, main machine and method of loading

Abstract

The application provides a slurry shield tunneling machine, a main machine thereof and a warehouse entering method, and belongs to the technical field of tunneling equipment. The main machine of the slurry shield tunneling machine comprises a shield body, a slurry warehouse, an air cushion warehouse and a man cabin arranged in sequence from front to back in the shield body, the air cushion warehouse is formed by a space between the shield body and front and rear partition plates, at least two side partition plates are arranged on the upper part of the air cushion warehouse, each side partition plate divides the air cushion warehouse into at least one independent transition cabin, a first cabin door for an operator to enter and exit the slurry warehouse is arranged on the front partition plate at a position corresponding to the transition cabin, a second cabin door for the operator to enter and exit the man cabin is arranged on the rear partition plate at a position corresponding to the transition cabin, and a dirt collecting device and / or a cleaning device are arranged in the transition cabin. The application can ensure that the asbestos fibers are left in the transition cabin, avoid the asbestos fibers from being brought into the man cabin, further avoid the asbestos fibers from overflowing into the air through the man cabin, and ensure that the working environment of the shield tunneling machine is not polluted.

Description

Technical Field

[0001] This invention relates to a slurry shield tunneling machine, its main unit, and its chamber entry method, belonging to the technical field of tunneling equipment. Background Technology

[0002] The working principle of a slurry shield tunneling machine is to mix water, clay and additives to make slurry, which is then pumped into the slurry chamber through a delivery pipeline. The slurry pressure is used to resist the soil pressure and water pressure at the excavation face to maintain the stability of the excavation face, while controlling the deformation of the excavation face and the settlement of the foundation. A weakly permeable mud film is formed at the excavation face to keep the slurry pressure effectively acting on the excavation face.

[0003] During the operation of a slurry shield tunneling machine, operators need to periodically enter the slurry chamber to replace the cutterhead tools or troubleshoot other malfunctions; this is referred to as chamber entry. For example, Chinese invention patent application CN101666231A discloses a method for chamber entry into a shield tunneling machine. The shield tunneling machine comprises, from front to back, a cutterhead, a slurry chamber, an air cushion chamber, and a personnel pressure chamber (i.e., a personnel cabin). The air cushion chamber is typically formed by the space between a front and rear partition. During pressurized chamber entry, operators first enter the personnel cabin and pressurize it, then open the square door between the personnel cabin and the air cushion chamber to enter the air cushion chamber, and finally enter the slurry chamber to perform operations.

[0004] The aforementioned patent application documents provide various methods for entering the tunnel. However, this type of tunnel boring machine is only suitable for conventional strata tunnels. It will not achieve good protection for some strata containing harmful substances. For example, asbestos is present in strata such as serpentine, tremolite, actinolite, and tremolite. Since asbestos fibers can cause diseases such as asbestosis and pleural mesothelioma, they pose a great threat to the health of workers. Therefore, reliable asbestos protection and treatment measures are needed.

[0005] However, because the mud contains asbestos fibers, once operators enter the mud chamber, they are exposed to the asbestos fiber environment. The asbestos fibers will adhere to the operators' clothing, and once they are carried out of the man-machine chamber, they will spread into the air. Furthermore, when the door between the mud chamber and the air cushion chamber is opened, the asbestos fibers will also enter the air cushion chamber, and then overflow into the air through the man-machine chamber, polluting the working environment of the tunnel boring machine and causing very adverse consequences. Summary of the Invention

[0006] The purpose of this invention is to provide a slurry shield tunneling machine host to solve the problem in the prior art that asbestos fibers are easily brought out of the personnel compartment and contaminate the working environment of the shield tunneling machine when entering the slurry compartment for operation; the purpose of this invention is also to provide a slurry shield tunneling machine and a method for entering the slurry shield tunneling machine compartment to solve the above problems.

[0007] To achieve the above objectives, the slurry shield tunneling machine host in this invention adopts the following technical solution:

[0008] A slurry shield tunneling machine main unit includes a shield body and a slurry chamber, an air cushion chamber, and a personnel compartment arranged sequentially from front to back inside the shield body. The air cushion chamber is formed by the space between the shield body and the front and rear bulkheads. At least two side bulkheads are provided on the upper part of the air cushion chamber, and each side bulkhead divides the air cushion chamber into at least one independent transition chamber. A first door for operators to enter and exit the slurry chamber is provided on the front bulkhead at the position corresponding to the transition chamber, and a second door for operators to enter and exit the personnel compartment is provided on the rear bulkhead at the position corresponding to the transition chamber. A waste collection device and / or a cleaning device is provided inside the transition chamber.

[0009] The beneficial effects of the above technical solution are as follows: the side partitions on the upper part of the air cushion chamber divide the air cushion chamber into at least one independent transition chamber, and the front and rear partitions are respectively equipped with a first door and a second door at the positions corresponding to the transition chamber. In this way, when entering the chamber for operation, the operator can enter the transition chamber from the personnel compartment through the second door, and then enter the mud and water chamber through the first door to carry out the operation. After the operation is completed, the operator first enters the transition chamber through the first door, closes the first door to ensure the airtightness of the transition chamber, and then uses the dirt collection device and / or cleaning device in the transition chamber to remove dirty clothes and put them into the dirt collection device, and / or wash himself or dirty clothes, ensuring that the asbestos fibers remain in the transition chamber, and then returns to the personnel compartment through the second door to avoid bringing asbestos fibers into the personnel compartment, thereby preventing asbestos fibers from overflowing into the air through the personnel compartment and ensuring that the working environment of the tunnel boring machine is not polluted.

[0010] Furthermore, at least three side bulkheads are provided to form at least two transition compartments, and a third door is provided on the side bulkhead between two adjacent transition compartments. The third door is used to separate the two adjacent transition compartments or to allow operators to enter one transition compartment from another.

[0011] The beneficial effects of the above technical solution are as follows: there are multiple transition chambers, and a third door is provided between two adjacent transition chambers. This allows operators to gradually clean through multiple transition chambers, further ensuring that asbestos fibers are not brought into the personnel compartment.

[0012] Furthermore, the human cabin is located on the rear side of the upper center of the air cushion chamber. Among the transition cabins, the one located in the upper center of the air cushion chamber is the first transition cabin. The second door corresponds to the first transition cabin, and the other transition cabins are located on one side of the first transition cabin.

[0013] The advantages of the above technical solution are: it facilitates the arrangement of the human cabin, as well as the arrangement of each transition cabin, and ensures the cleaning effect of asbestos fibers.

[0014] Furthermore, the third doors are arranged in pairs, with each pair of third doors installed on opposite sides of the side bulkhead.

[0015] The beneficial effect of the above technical solution is that when the side bulkhead wall thickness is sufficient, the operator can open a third door to enter the inner hole of the side bulkhead, then close the third door and open another third door, thus preventing asbestos fibers in the previous transition compartment from entering the other transition compartment, resulting in better protection.

[0016] Furthermore, all side bulkheads are equipped with connecting doors to connect the transition compartment and the air cushion compartment or to isolate the transition compartment from the air cushion compartment.

[0017] The beneficial effects of the above technical solution are as follows: when no entry into the warehouse is required, the connecting door opens to connect the transition chamber and the air cushion chamber, which can increase the volume of the air cushion chamber and ensure the effectiveness of the air cushion chamber; when entry into the warehouse is required, the connecting door is closed to isolate the transition chamber and the air cushion chamber and prevent the spread of asbestos fibers.

[0018] Furthermore, apart from the side bulkhead between two adjacent transition compartments, the remaining two edge side bulkheads are respectively equipped with a fourth and a fifth door to connect the transition compartment and the air cushion compartment or to isolate the transition compartment from the air cushion compartment.

[0019] The beneficial effects of the above technical solution are as follows: when no entry into the warehouse is required, opening the fourth, fifth, and third doors connects all the transition chambers and the air cushion chamber, which can increase the volume of the air cushion chamber and ensure its effectiveness; when entry into the warehouse is required, closing the fourth and fifth doors isolates the transition chamber from the air cushion chamber, preventing the spread of asbestos fibers.

[0020] Furthermore, water curtains are installed in the air cushion chamber and the transition chamber to form the cleaning device or to increase air humidity by spraying, thereby preventing the spread of asbestos fibers.

[0021] The beneficial effects of the above technical solution are: the water curtain can be used for cleaning, or the air humidity can be increased by spraying to prevent the spread of asbestos fibers and ensure the protective effect.

[0022] Furthermore, humidity monitoring devices are installed inside the air cushion chamber and the transition chamber.

[0023] The beneficial effects of the above technical solution are as follows: the humidity monitoring device can detect the humidity of the air inside the chamber. If the humidity is insufficient, the water curtain can be turned on to spray water, ensuring sufficient humidity inside the chamber and preventing the spread of asbestos fibers.

[0024] To achieve the above objectives, the slurry shield tunneling machine of this invention adopts the following technical solution:

[0025] A slurry shield tunneling machine includes a main unit and supporting equipment. The main unit includes a shield body and a slurry chamber, an air cushion chamber, and a personnel compartment arranged sequentially from front to back within the shield body. The air cushion chamber is formed by the space between the shield body and the front and rear bulkheads. At least two side bulkheads are provided on the upper part of the air cushion chamber, and each side bulkhead divides the air cushion chamber into at least one independent transition chamber. A first door for operators to enter and exit the slurry chamber is provided on the front bulkhead at the position corresponding to the transition chamber, and a second door for operators to enter and exit the personnel compartment is provided on the rear bulkhead at the position corresponding to the transition chamber. A waste collection device and / or a cleaning device is provided in the transition chamber.

[0026] The beneficial effects of the above technical solution are as follows: the side partitions on the upper part of the air cushion chamber divide the air cushion chamber into at least one independent transition chamber, and the front and rear partitions are respectively equipped with a first door and a second door at the positions corresponding to the transition chamber. In this way, when entering the chamber for operation, the operator can enter the transition chamber from the personnel compartment through the second door, and then enter the mud and water chamber through the first door to carry out the operation. After the operation is completed, the operator first enters the transition chamber through the first door, closes the first door to ensure the airtightness of the transition chamber, and then uses the dirt collection device and / or cleaning device in the transition chamber to remove dirty clothes and put them into the dirt collection device, and / or wash himself or dirty clothes, ensuring that the asbestos fibers remain in the transition chamber, and then returns to the personnel compartment through the second door to avoid bringing asbestos fibers into the personnel compartment, thereby preventing asbestos fibers from overflowing into the air through the personnel compartment and ensuring that the working environment of the tunnel boring machine is not polluted.

[0027] Furthermore, at least three side bulkheads are provided to form at least two transition compartments, and a third door is provided on the side bulkhead between two adjacent transition compartments. The third door is used to separate the two adjacent transition compartments or to allow operators to enter one transition compartment from another.

[0028] The beneficial effects of the above technical solution are as follows: there are multiple transition chambers, and a third door is provided between two adjacent transition chambers. This allows operators to gradually clean through multiple transition chambers, further ensuring that asbestos fibers are not brought into the personnel compartment.

[0029] Furthermore, the human cabin is located on the rear side of the upper center of the air cushion chamber. Among the transition cabins, the one located in the upper center of the air cushion chamber is the first transition cabin. The second door corresponds to the first transition cabin, and the other transition cabins are located on one side of the first transition cabin.

[0030] The advantages of the above technical solution are: it facilitates the arrangement of the human cabin, as well as the arrangement of each transition cabin, and ensures the cleaning effect of asbestos fibers.

[0031] Furthermore, the third doors are arranged in pairs, with each pair of third doors installed on opposite sides of the side bulkhead.

[0032] The beneficial effect of the above technical solution is that when the side bulkhead wall thickness is sufficient, the operator can open a third door to enter the inner hole of the side bulkhead, then close the third door and open another third door, thus preventing asbestos fibers in the previous transition compartment from entering the other transition compartment, resulting in better protection.

[0033] Furthermore, all side bulkheads are equipped with connecting doors to connect the transition compartment and the air cushion compartment or to isolate the transition compartment from the air cushion compartment.

[0034] The beneficial effects of the above technical solution are as follows: when no entry into the warehouse is required, the connecting door opens to connect the transition chamber and the air cushion chamber, which can increase the volume of the air cushion chamber and ensure the effectiveness of the air cushion chamber; when entry into the warehouse is required, the connecting door is closed to isolate the transition chamber and the air cushion chamber and prevent the spread of asbestos fibers.

[0035] Furthermore, apart from the side bulkhead between two adjacent transition compartments, the remaining two edge side bulkheads are respectively equipped with a fourth and a fifth door to connect the transition compartment and the air cushion compartment or to isolate the transition compartment from the air cushion compartment.

[0036] The beneficial effects of the above technical solution are as follows: when no entry into the warehouse is required, opening the fourth, fifth, and third doors connects all the transition chambers and the air cushion chamber, which can increase the volume of the air cushion chamber and ensure its effectiveness; when entry into the warehouse is required, closing the fourth and fifth doors isolates the transition chamber from the air cushion chamber, preventing the spread of asbestos fibers.

[0037] Furthermore, water curtains are installed in the air cushion chamber and the transition chamber to form the cleaning device or to increase air humidity by spraying, thereby preventing the spread of asbestos fibers.

[0038] The beneficial effects of the above technical solution are: the water curtain can be used for cleaning, or the air humidity can be increased by spraying to prevent the spread of asbestos fibers and ensure the protective effect.

[0039] Furthermore, humidity monitoring devices are installed inside the air cushion chamber and the transition chamber.

[0040] The beneficial effects of the above technical solution are as follows: the humidity monitoring device can detect the humidity of the air inside the chamber. If the humidity is insufficient, the water curtain can be turned on to spray water, ensuring sufficient humidity inside the chamber and preventing the spread of asbestos fibers.

[0041] To achieve the above objectives, the method for entering the slurry shield tunneling machine in this invention adopts the following technical solution:

[0042] A method for entering the slurry shield tunneling machine involves setting up an independent transition chamber in the air cushion chamber corresponding to the personnel compartment. After exiting the personnel compartment, the operator enters the slurry compartment through the transition chamber to carry out operations. After completing the work, the operator exits the slurry compartment and first enters the transition chamber to remove dirt and / or clean before entering the personnel compartment, thus avoiding bringing asbestos fibers into the personnel compartment.

[0043] The beneficial effects of the above technical solution are as follows: After the entry operation is completed, the operators enter the transition chamber to remove dirt and / or clean after exiting the mud and water chamber. Since the transition chamber is independent, it ensures that the asbestos fibers remain in the transition chamber before entering the personnel chamber. This avoids bringing the asbestos fibers into the personnel chamber, thereby preventing the asbestos fibers from overflowing into the air through the personnel chamber and ensuring that the working environment of the tunnel boring machine is not polluted. Attached Figure Description

[0044] Figure 1 This is a structural diagram of the main body of the slurry shield tunneling machine in this invention;

[0045] Figure 2 for Figure 1 Sectional view along direction AA.

[0046] In the diagram: 1. Cutterhead; 2. Shield body; 201. Front bulkhead; 202. Rear bulkhead; 203. Side bulkhead; 3. Air cushion chamber; 301. First transition chamber; 302. Second transition chamber; 303. Third hatch; 304. Fourth hatch; 305. Fifth hatch; 306. Entrance hatch; 307. Exit hatch; 4. Personnel compartment; 5. Slurry inlet and outlet pipelines. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0049] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0051] An embodiment of the slurry shield tunneling machine main unit in this invention:

[0052] like Figure 1 As shown, the main body of the slurry shield tunneling machine includes a shield body 2, a cutterhead 1 at the front end of the shield body 2, and a slurry chamber, an air cushion chamber 3, and a personnel cabin 4 arranged sequentially from front to back inside the shield body 2. The air cushion chamber 3 is formed by the space between the shield body 2 and the front partition 201 and the rear partition 202. The slurry inlet and outlet pipes 5 extend into the bottom of the air cushion chamber 3. The slurry chamber is located between the front partition 201 and the cutterhead 1, and the personnel cabin 4 is located behind the rear partition 202.

[0053] like Figure 2 As shown, the upper part of the air cushion chamber 3 is provided with three side partitions 203, which divide the air cushion chamber 3 into two independent transition chambers, namely the first transition chamber 301 and the second transition chamber 302. The longitudinal section of both transition chambers is fan-shaped. The front partition 201 is provided with a first door for operators to enter and exit the mud and water chamber at the position corresponding to the transition chamber. In this embodiment, since there are two transition chambers, the first door includes an entry door 306 corresponding to the first transition chamber 301, which allows operators to enter the mud and water chamber through the first transition chamber 301 during the entry operation; the first door also includes an exit door 307 corresponding to the second transition chamber 302, which allows operators to exit the mud and water chamber and enter the second transition chamber 302 after the operation is completed.

[0054] A second door (not marked in the figure) is provided on the rear bulkhead 202 at the position corresponding to the first transition chamber 301. Specifically, the personnel chamber 4 is located on the rear side of the upper part of the center of the air cushion chamber 3, and the first transition chamber 301 is located on the upper part of the center of the air cushion chamber 3. Therefore, the function of the second door is to connect the first transition chamber 301 and the personnel chamber 4 when it is open, so that the operator can enter the first transition chamber 301 from the personnel chamber 4 or return to the personnel chamber 4 from the first transition chamber 301. Of course, when it is closed, it can ensure that the first transition chamber 301 and the personnel chamber 4 are independently sealed.

[0055] The second transition compartment 302 is located to one side of the first transition compartment 301 and cannot directly communicate with the personnel compartment 4. A third door 303 is provided on the side bulkhead 203 between two adjacent transition compartments. The third door 303 is used to isolate the two adjacent transition compartments or to allow operators to enter one transition compartment from another. The third doors 303 are arranged in pairs, with a pair of third doors 303 installed on opposite sides of the side bulkhead 203. When the wall thickness of the side bulkhead 203 is sufficient, the operator can open one third door to enter the inner hole of the side bulkhead 203, then close the third door and open the other third door, preventing asbestos fibers from the previous transition compartment from entering the other transition compartment, thus improving the protective effect.

[0056] Apart from the side bulkhead 203 between the two adjacent transition chambers, the remaining two edge side bulkheads 203 are respectively equipped with a fourth door 304 and a fifth door 305. When no entry work is required, opening the third door 303, fourth door 304, and fifth door 305 connects the two transition chambers and the air cushion chamber 3 (at this time, these doors act as connecting doors), increasing the volume of the air cushion chamber 3 and ensuring its effectiveness. When entry work is required, closing the third door 303, fourth door 304, and fifth door 305 isolates the transition chambers from the air cushion chamber 3, preventing asbestos fiber diffusion. All the above doors are hydraulically or electrically controlled and can be automatically opened and closed from the control room.

[0057] In addition, water curtains are installed in air cushion chamber 3 and both transition chambers to increase air humidity through spraying, thereby preventing the spread of asbestos fibers. Humidity monitoring devices are also installed in air cushion chamber 3 and the transition chambers to detect the humidity level inside the chambers. If the humidity is insufficient, the water curtains can be activated to ensure adequate humidity and prevent asbestos fiber spread. Furthermore, the water curtain in the second transition chamber 302 can also be used as a cleaning device. After operators exit the mud and water chamber and enter the second transition chamber 302, they can remove soiled clothing and clean themselves. The second transition chamber 302 is also equipped with a waste collection device to prevent the spread of asbestos fibers from soiled clothing.

[0058] The specific process of loading the main unit of the slurry shield tunneling machine into the chamber in this invention is as follows:

[0059] When operators need to enter the working chamber under pressure, the liquid level in the air cushion chamber 3 is reduced to approximately 20% using the slurry pump. Then, a water curtain is used to flush the interiors of the air cushion chamber 3, the first transition chamber 301, and the second transition chamber 302. The third door 303, the fourth door 304, and the fifth door 305 are then closed to create an independent, clean transition chamber space. The connecting valve between the air cushion chamber 3 and the mud-water chamber is then opened. After the liquid level stabilizes, a few minutes are observed to check for changes in the liquid level in the air cushion chamber 3 and the pressure in the mud-water chamber. If there are no changes in the liquid level and pressure, the mud film at the working face is well formed. The liquid level in the air cushion chamber 3 is then slowly reduced to its lowest level using the slurry pump. After pressurization is completed in the personnel compartment 4, the second door is opened, and operators enter the first transition chamber 301 from the personnel compartment 4. The second door is then closed, and the entry door 306 is opened, allowing operators to enter the mud-water chamber from the first transition chamber 301 for maintenance work.

[0060] After pressurized maintenance is completed, when exiting the chamber, the operator opens exit door 307 and enters the second transition chamber 302 from the mud and water chamber, then closes exit door 307. Personal protective equipment and soiled clothing are removed and placed in a waste collection device (such as a collection bag or box). After cleaning with a water curtain shower in the second transition chamber 302, the operator opens both third doors 303 to enter the first transition chamber 301 and changes into clean clothes. Before entering the first transition chamber 301 from the second transition chamber 302, clean compressed air can be used to replace the air in the asbestos-contaminated second transition chamber 302, preventing asbestos fibers from entering and contaminating the first transition chamber 301 when the third doors 303 are opened. Furthermore, the double-door design of the third doors 303 ensures that asbestos fibers are not brought into the first transition chamber 301. Finally, the second hatch is opened, and the operators return from the first transition cabin 301 to cabin 4, and then gradually depressurize and exit the cabin according to the exit procedure of cabin 4.

[0061] An embodiment of the method for entering the slurry shield tunneling machine in this invention is as follows:

[0062] The method of entering the slurry shield tunneling machine is the same as the specific process of entering the main body of the slurry shield tunneling machine. In summary, it involves setting up an independent transition chamber in the air cushion chamber corresponding to the personnel chamber. After the operators exit the personnel chamber, they enter the slurry chamber through the transition chamber to carry out their work. After the work is completed, the operators exit the slurry chamber and first enter the transition chamber to remove dirt and clean themselves, ensuring that all asbestos fibers remain in the transition chamber before entering the personnel chamber. This avoids bringing asbestos fibers into the personnel chamber and prevents them from leaking into the air through the personnel chamber, thus ensuring that the working environment of the shield tunneling machine is not polluted.

[0063] In other embodiments of the slurry shield tunneling machine main unit: humidity monitoring devices may not be installed in the air cushion chamber and transition chamber, but instead, water curtains may be opened periodically for spraying.

[0064] In other embodiments of the slurry shield tunneling machine main unit: water curtains may not be installed in the air cushion chamber and transition chamber. When cleaning is required, portable shower tents can be used as cleaning devices, or operators may not clean in the transition chamber, but simply remove dirty clothes and put them into the waste collection device, and then clean them after returning to the personnel cabin.

[0065] In other embodiments of the slurry shield tunneling machine main unit: the fourth and fifth doors may not be provided on the side bulkheads on the two edges, in which case the transition chamber and the air cushion chamber are no longer connected.

[0066] In other embodiments of the slurry shield tunneling machine main unit: only one third hatch may be provided.

[0067] In other embodiments of the slurry shield tunneling machine main unit: the personnel compartment can also correspond to the second transition compartment. When entering the compartment for operation, the operator first enters the second transition compartment, then enters the slurry compartment. After the operation is completed, the operator first enters the first transition compartment, then enters the second transition compartment, and then returns to the personnel compartment.

[0068] In other embodiments of the slurry shield tunneling machine main unit: the personnel compartment can also correspond to two transition compartments simultaneously. In this case, a second door is provided on the rear bulkhead at the position corresponding to the two transition compartments. When the operator enters the compartment, he / she can open any one of the second doors, that is, enter the slurry compartment through any one of the transition compartments. When exiting the slurry compartment, he / she also enters any one of the transition compartments first, washes himself / herself, and then enters the other transition compartment, and then returns to the personnel compartment through the other transition compartment.

[0069] In other embodiments of the slurry shield tunneling machine main unit: there may be four or more side partitions, thereby dividing more transition chambers to achieve more thorough cleaning. For example, dirty clothes can be removed and a waste collection device can be placed in the first transition chamber, the clothes can be cleaned using a cleaning device in the second transition chamber, and clean clothes can be changed in the third transition chamber.

[0070] In other embodiments of the slurry shield tunneling machine main unit: there may be only two side partitions, forming only one transition chamber. In this case, the first door on the front partition is used for both the operator to enter and exit the slurry chamber. In this case, the transition chamber may only be equipped with a cleaning device, so that the operator can clean himself and his dirty clothes at the same time, and change into clean clothes after returning to the man cabin. Alternatively, the transition chamber may only be equipped with a waste collection device, so that the operator can put his dirty clothes into the waste collection device and wash them after returning to the man cabin, or go to other areas of the shield tunneling machine to clean them after leaving the man cabin.

[0071] The embodiment of the slurry shield tunneling machine in this invention is as follows: The slurry shield tunneling machine includes a main unit and supporting equipment. The specific structure of the main unit is the same as that of the slurry shield tunneling machine main unit in the above embodiment, and will not be repeated here.

[0072] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. A slurry shield tunneling machine main unit, comprising a shield body (2) and a slurry chamber, an air cushion chamber (3), and a personnel cabin (4) arranged sequentially from front to back within the shield body (2), wherein the air cushion chamber (3) is formed by the space between the shield body (2) and the front partition (201) and the rear partition (202), characterized in that, The upper part of the air cushion chamber (3) is provided with at least three side partitions (203). Each side partition (203) divides the air cushion chamber (3) into at least two independent transition chambers. The front partition (201) is provided with a first door for operators to enter and exit the mud and water chamber, or the two transition chambers are provided with an entrance door for entering the mud and water chamber and an exit door for exiting the mud and water chamber, respectively. The rear partition (202) is provided with a second door for operators to enter and exit the personnel compartment (4), corresponding to the position of the transition chamber. The transition chamber after exiting the mud and water chamber is provided with a waste collection device and / or a cleaning device. A third door is provided on the side partition between two adjacent transition chambers. A fourth door and a fifth door are provided on the remaining two edge side partitions, respectively. When no entry into the chamber is required, the third, fourth and fifth doors are opened, and all transition chambers are connected to the air cushion chamber. When entry into the chamber is required, the third, fourth and fifth doors are closed, so that the transition chambers are isolated from the air cushion chamber.

2. The slurry shield tunneling machine main unit according to claim 1, characterized in that, There are three side bulkheads and two transition compartments, namely the first transition compartment and the second transition compartment. The entrance door and the second compartment door are both corresponding to the first transition compartment, and the exit door is corresponding to the second transition compartment. The second transition compartment is equipped with a waste collection device and a washing device to collect the operator's personal protective equipment and dirty clothes for the operator to wash. The first transition compartment is for the operator to change into clean clothes.

3. The slurry shield tunneling machine main unit according to claim 1, characterized in that, The human cabin (4) is located on the rear side of the upper center of the air cushion cabin (3). Among the transition cabins, the one located in the upper center of the air cushion cabin (3) is the first transition cabin (301). The second cabin door corresponds to the first transition cabin (301), and the other transition cabins are located on one side of the first transition cabin (301).

4. The slurry shield tunneling machine main unit according to claim 1, characterized in that, The third doors (303) are arranged in pairs, with each pair of third doors (303) installed on opposite sides of the side bulkhead (203).

5. The slurry shield tunneling machine main unit according to claim 4, characterized in that, The wall thickness of the side bulkhead equipped with a pair of third doors is sufficient to allow the operator to open one third door to enter the inner hole of the side bulkhead, then close the opened third door and open the other third door.

6. The slurry shield tunneling machine main unit according to claim 1, characterized in that, There are three side bulkheads and two transition chambers. The personnel compartment corresponds to both transition chambers. On the rear bulkhead, there is a second door at the position corresponding to the two transition chambers. When the operator enters the compartment, he / she can open any of the second doors and enter the mud and water compartment through any of the transition chambers. When exiting the mud and water compartment, he / she first enters any of the transition chambers, washes himself / herself, and then enters the other transition chamber. He / she then returns to the personnel compartment through that transition chamber.

7. The slurry shield tunneling machine main unit according to any one of claims 1 to 5, characterized in that, Water curtains are installed in the air cushion chamber (3) and the transition chamber to form the cleaning device or to increase air humidity by spraying to prevent the spread of asbestos fibers.

8. The slurry shield tunneling machine main unit according to claim 7, characterized in that, Humidity monitoring devices are also installed in the air cushion chamber (3) and the transition chamber.

9. A slurry shield tunneling machine, comprising a main unit and supporting equipment, the main unit comprising a shield body (2) and a slurry chamber, an air cushion chamber (3), and a personnel cabin (4) arranged sequentially from front to back within the shield body (2), the air cushion chamber (3) being formed by the space between the shield body (2) and the front partition (201) and the rear partition (202), characterized in that, The upper part of the air cushion chamber (3) is provided with at least three side partitions (203). Each side partition (203) divides the air cushion chamber (3) into at least two independent transition chambers. The front partition (201) is provided with a first door for operators to enter and exit the mud and water chamber, or the two transition chambers are provided with an entrance door for entering the mud and water chamber and an exit door for exiting the mud and water chamber, respectively. The rear partition (202) is provided with a second door for operators to enter and exit the personnel compartment (4), corresponding to the position of the transition chamber. The transition chamber after exiting the mud and water chamber is provided with a waste collection device and / or a cleaning device. A third door is provided on the side partition between two adjacent transition chambers. A fourth door and a fifth door are provided on the remaining two edge side partitions, respectively. When no entry into the chamber is required, the third, fourth and fifth doors are opened, and all transition chambers are connected to the air cushion chamber. When entry into the chamber is required, the third, fourth and fifth doors are closed, so that the transition chambers are isolated from the air cushion chamber.

10. The slurry shield tunneling machine according to claim 9, characterized in that, There are three side bulkheads and two transition compartments, namely the first transition compartment and the second transition compartment. The entrance door and the second compartment door are both corresponding to the first transition compartment, and the exit door is corresponding to the second transition compartment. The second transition compartment is equipped with a waste collection device and a washing device to collect the operator's personal protective equipment and dirty clothes for the operator to wash. The first transition compartment is for the operator to change into clean clothes.

11. The slurry shield tunneling machine according to claim 9, characterized in that, The human cabin (4) is located on the rear side of the upper center of the air cushion cabin (3). Among the transition cabins, the one located in the upper center of the air cushion cabin (3) is the first transition cabin (301). The second cabin door corresponds to the first transition cabin (301), and the other transition cabins are located on one side of the first transition cabin (301).

12. The slurry shield tunneling machine according to claim 9, characterized in that, The third doors (303) are arranged in pairs, with each pair of third doors (303) installed on opposite sides of the side bulkhead (203).

13. The slurry shield tunneling machine according to claim 12, characterized in that, The wall thickness of the side bulkhead equipped with a pair of third doors is sufficient to allow the operator to open one third door to enter the inner hole of the side bulkhead, then close the opened third door and open the other third door.

14. The slurry shield tunneling machine according to claim 9, characterized in that, There are three side bulkheads and two transition chambers. The personnel compartment corresponds to both transition chambers. On the rear bulkhead, there is a second door at the position corresponding to the two transition chambers. When the operator enters the compartment, he / she can open any of the second doors and enter the mud and water compartment through any of the transition chambers. When exiting the mud and water compartment, he / she first enters any of the transition chambers, washes himself / herself, and then enters the other transition chamber. He / she then returns to the personnel compartment through that transition chamber.

15. The slurry shield tunneling machine according to any one of claims 9 to 14, characterized in that, Water curtains are installed in the air cushion chamber (3) and the transition chamber to form the cleaning device or to increase air humidity by spraying to prevent the spread of asbestos fibers.

16. The slurry shield tunneling machine according to claim 15, characterized in that, Humidity monitoring devices are also installed in the air cushion chamber (3) and the transition chamber.

17. A method for entering the tunnel boring machine (TBM), characterized in that, The method of entering the slurry shield machine is implemented on the main machine of the slurry shield machine as described in claim 1. An independent transition chamber is set up in the air cushion chamber (3) at the position corresponding to the personnel chamber (4). After the operator exits the personnel chamber (4), he enters the slurry chamber through the transition chamber to carry out the work. After the work is completed, the operator enters the transition chamber to remove dirt and / or clean himself after exiting the slurry chamber, and then enters the personnel chamber (4) to avoid bringing asbestos fibers into the personnel chamber (4).

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