Construction method for tunnel hole shield assembly starting and disassembling hoisting

Abstract

The application provides a tunnel hole shield assembly starting and disassembly hoisting construction method, and relates to the technical field of civil tunnel engineering. The tunnel hole shield assembly starting and disassembly hoisting construction method comprises the following steps: constructing a first auxiliary branch hole and an underground starting expansion chamber communicated with the first auxiliary branch hole from the ground; conveying the disassembled shield machine to the starting expansion chamber through the first auxiliary branch hole, and assembling and debugging; tunneling and constructing the shield machine along the axial positive line tunnel of the starting expansion chamber; constructing a second auxiliary branch hole and an underground receiving expansion chamber communicated with the second auxiliary branch hole from the ground, and respectively arranging the starting expansion chamber and the receiving expansion chamber at two ends of the tunnel; after the tunneling and construction of the shield machine to the receiving expansion chamber, disassembling the shield machine and conveying the shield machine to the ground through the second auxiliary branch hole. The application solves the technical problem of small application range of the open cut working well in the shield method.

Description

Technical Field

[0001] This invention relates to the field of civil engineering tunnel technology, and in particular to a construction method for the assembly, launching, disassembly, and hoisting of a shield tunneling machine inside a tunnel. Background Technology

[0002] With the continuous improvement of equipment technology and the increasing localization rate of equipment, information-based and mechanized construction is now advocated. To control the construction risks of tunnel projects, tunnels should be constructed using the shield tunneling method, where conditions permit. Please see [link to relevant documentation]. Figure 1 In shield tunnel construction, open-cut shafts are mainly used as launching and receiving shafts. During the launching phase, the shield machine can be assembled as a whole on the ground and then lowered into the shield shaft as a whole through the working shaft. During the receiving phase, it can be received as a whole and then lifted out to the ground for dismantling. This hoisting and dismantling construction technology is mature and efficient. However, open-cut shafts have limitations in some engineering construction processes. For example, in mountain tunnels, due to the great depth of the tunnel, if open-cut shafts are used directly, there will be problems with construction risks and high costs. For example, in urban areas, due to the difficulty in demolishing surface buildings and the limited conditions of the construction site, open-cut shafts cannot be used. Summary of the Invention

[0003] The purpose of this invention is to provide a construction method for the assembly, initiation, disassembly, and hoisting of a shield tunneling machine inside a tunnel, so as to alleviate the technical problem of the limited applicability of open-cut working shafts in the existing shield tunneling method.

[0004] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows:

[0005] The construction method for assembling, launching, disassembling, and hoisting out a shield tunnel inside a tunnel provided by the present invention includes constructing a first auxiliary tunnel from the ground and an underground launching and enlarged tunnel connected to the first auxiliary tunnel;

[0006] The disassembled tunnel boring machine is transported through the first auxiliary tunnel to the starting enlargement chamber, where it is assembled and tested.

[0007] The tunnel boring machine is excavating along the axial mainline of the starting enlarged chamber.

[0008] The second auxiliary tunnel is constructed from the ground, and an underground receiving and enlarged tunnel is connected to the second auxiliary tunnel. The starting enlarged tunnel and the receiving enlarged tunnel are respectively located at both ends of the tunnel.

[0009] After the tunnel boring machine (TBM) has advanced to the receiving enlarged tunnel, the TBM is disassembled and transported to the ground via the second auxiliary tunnel.

[0010] Furthermore,

[0011] Both the starting enlargement chamber and / or the receiving enlargement chamber are equipped with multiple electric hoist lifting assemblies for lifting the tunnel boring machine.

[0012] Furthermore,

[0013] When the electric hoist lifting assembly is installed in the starting enlargement chamber, the electric hoist lifting assembly is installed at the top of the starting enlargement chamber;

[0014] When the receiving enlarged cavity is equipped with the electric hoist lifting assembly, the electric hoist lifting assembly is installed on the top of the receiving enlarged cavity.

[0015] Furthermore,

[0016] A reaction frame is installed in the initial enlargement chamber.

[0017] Furthermore,

[0018] The cross-sectional dimensions of the initial enlarged chamber are larger than those of the tunnel.

[0019] Furthermore,

[0020] The axis of the first auxiliary tunnel is set to be arc-shaped.

[0021] Furthermore,

[0022] The axis of the first auxiliary tunnel is recessed towards the axis of the initial enlarged tunnel.

[0023] Furthermore,

[0024] Before the tunnel boring machine enters the tunnel, the construction of the receiving enlarged tunnel and the second auxiliary tunnel is completed.

[0025] Furthermore,

[0026] During the tunnel excavation by the tunnel boring machine, segments, materials, and muck are transported through the first auxiliary tunnel.

[0027] Furthermore,

[0028] Both the receiving enlarged cavern and the second auxiliary branch cavern are provided in two forms;

[0029] The two receiving expansion chambers are arranged at an axial distance from the starting expansion chamber and are located on both sides of the starting expansion chamber, respectively. The two second auxiliary branch tunnels are respectively connected to the two receiving expansion chambers.

[0030] Based on the above technical solutions, the technical effects achievable by this invention can be analyzed as follows:

[0031] The construction method for assembling, launching, disassembling, and hoisting out a tunnel boring machine (TBM) provided by this invention includes: constructing a first auxiliary tunnel and an underground launching enlargement chamber connected to the first auxiliary tunnel from the ground; transporting the disassembled TBM to the launching enlargement chamber via the first auxiliary tunnel, and assembling and debugging it; the TBM excavating along the axial mainline of the launching enlargement chamber; constructing a second auxiliary tunnel and an underground receiving enlargement chamber connected to the second auxiliary tunnel from the ground, with the launching enlargement chamber and the receiving enlargement chamber respectively located at both ends of the tunnel; after the TBM has excavated to the receiving enlargement chamber, disassembling the TBM and transporting it to the ground via the second auxiliary tunnel. The principle of the construction method for the assembly, launch, disassembly, and hoisting of the tunnel boring machine (TBM) inside the tunnel is as follows: By setting up a launch enlargement chamber and a first auxiliary adit, the TBM, after being disassembled on the ground, can be transported to the launch enlargement chamber through the first auxiliary adit. In the launch enlargement chamber, the TBM is assembled, debugged, and launched. By setting up a receiving enlargement chamber and a second auxiliary adit, after the TBM is completed, it is disassembled in the receiving enlargement chamber and transported to the ground through the second auxiliary adit. Because the TBM is in a disassembled state when passing through the first or second auxiliary adit, the cross-sectional dimensions of the first and second auxiliary adits are small, reducing construction risks and costs. Because the starting point of the tunnel boring machine (TBM) is fixed during tunnel construction, for example, when constructing a tunnel through a mountain, the large depth of the tunnel makes direct open-cut starting shaft construction risky and costly. The construction method provided by this invention connects the starting enlargement chamber to the first auxiliary adit. The entrance to the first auxiliary adit on the surface can be selected at other suitable locations, and the starting enlargement chamber is located at the starting point of the TBM, reducing construction risk and cost. For example, when constructing a tunnel with structures that cannot be demolished on the surface, the starting point of the TBM is located below these structures, making open-cut starting shaft construction impossible. However, the construction method provided by this invention connects the starting enlargement chamber to the first auxiliary adit. The entrance to the first auxiliary adit on the surface can be selected at other suitable locations, and the starting enlargement chamber is located at the starting point of the TBM, enabling the use of the shield tunneling method. The second auxiliary adit serves a similar function to the first auxiliary adit, only with the opposite direction of the TBM's transport. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the shield tunneling method provided in the background art;

[0034] Figure 2 This is step one of the construction method for the assembly, launching, disassembly, and hoisting of a shield tunneling machine inside a tunnel, as provided in this embodiment of the invention.

[0035] Figure 3 This is step two of the construction method for the initiation, disassembly, and hoisting of a shield tunneling machine inside a tunnel, as provided in this embodiment of the invention.

[0036] Figure 4 Step three of the construction method for the initiation, disassembly, and hoisting of a shield tunneling machine inside a tunnel, as provided in this embodiment of the invention;

[0037] Figure 5 Step four of the construction method for the initiation, disassembly, and hoisting of a shield tunneling machine inside a tunnel, provided in this embodiment of the invention;

[0038] Figure 6 Step five of the construction method for the initiation, disassembly, and hoisting of a tunnel boring machine (TBM) inside a tunnel, as provided in this embodiment of the invention.

[0039] icon:

[0040] 1-Open-cut launching shaft; 2-Open-cut receiving shaft; 3-First auxiliary adit; 4-Starting enlarged chamber; 5-Shield machine; 6-Tunnel; 7-Second auxiliary adit; 8-Receiving enlarged chamber. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0042] 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.

[0043] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0044] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0045] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0048] Please see Figure 1 In shield tunnel construction, open-cut shafts are mainly used as the starting shaft 1 and receiving shaft 2. The shield machine 5 can be assembled as a whole on the ground during the initial stage and then lowered as a whole through the starting shaft 1. The shield machine 5 excavates the shield tunnel 6 to both sides to the receiving shaft 2. The shield machine 5 is received as a whole during the receiving stage and then lifted out to the ground for dismantling. This hoisting and dismantling construction technology is mature and efficient. However, open-cut working shafts have limitations in some engineering construction processes. For example, in mountain tunnels 6, due to the large burial depth of tunnel 6, if open-cut working shafts are used directly, there will be problems of construction risks and high costs. For example, in urban areas, because the ground buildings cannot be demolished, it is impossible to excavate working shafts.

[0049] In view of this, the construction method for the assembly, launch, disassembly, and hoisting of a shield tunneling machine inside a tunnel provided in this embodiment of the invention includes: constructing a first auxiliary tunnel 3 and an underground launch enlargement chamber 4 connected to the first auxiliary tunnel 3 from the ground; transporting the disassembled shield machine 5 to the launch enlargement chamber 4 via the first auxiliary tunnel 3, and assembling and debugging it; the shield machine 5 excavating along the axial mainline of the tunnel 6 in the launch enlargement chamber 4; constructing a second auxiliary tunnel 7 and an underground receiving enlargement chamber 8 connected to the second auxiliary tunnel 7 from the ground, with the launch enlargement chamber 4 and the receiving enlargement chamber 8 respectively located at both ends of the tunnel 6; after the shield machine 5 has excavated to the receiving enlargement chamber 8, disassembling the shield machine 5 and transporting it to the ground via the second auxiliary tunnel 7. The principle of the construction method for the assembly, launch, disassembly, and hoisting of the tunnel boring machine (TBM) inside the tunnel is as follows: By setting up a launch enlargement chamber 4 and a first auxiliary adit 3, the TBM 5, after being disassembled on the ground, can be transported to the launch enlargement chamber 4 through the first auxiliary adit 3. The TBM 5 is then assembled, debugged, and launched within the launch enlargement chamber 4. By setting up a receiving enlargement chamber 8 and a second auxiliary adit 7, the TBM 5 is disassembled in the receiving enlargement chamber 8 after construction is completed, and then transported to the ground through the second auxiliary adit 7. Because the TBM 5 is in a disassembled state when passing through the first auxiliary adit 3 or the second auxiliary adit 7, the cross-sectional dimensions of the first auxiliary adit 3 and the second auxiliary adit 7 are small, reducing construction risks and costs. Because the starting point of the tunnel boring machine (TBM) 5 is fixed during tunnel construction, for example, when constructing a tunnel through a mountain, due to the large burial depth, directly using the open-cut starting shaft 1 would pose significant construction risks and costs. However, the construction method provided by this invention connects the starting enlarged tunnel 4 to the first auxiliary branch tunnel 3. The entrance to the first auxiliary branch tunnel 3 on the ground can be selected at other suitable locations, and the starting enlarged tunnel 4 is located at the starting point of the TBM 5, reducing construction risks and costs. For example, when constructing a tunnel 6 with structures that cannot be demolished on the ground, the starting point of the TBM 5 is located below these structures, making the open-cut starting shaft 1 unsuitable. However, the construction method provided by this invention connects the starting enlarged tunnel 4 to the first auxiliary branch tunnel 3. The entrance to the first auxiliary branch tunnel 3 on the ground can be selected at other suitable locations, and the starting enlarged tunnel 4 is located at the starting point of the TBM 5, enabling the use of the shield tunneling method. The function of the second auxiliary branch tunnel 7 is similar to that of the first auxiliary branch tunnel 3, only with the opposite transport direction of the TBM 5.

[0050] In an optional embodiment of the present invention, multiple electric hoist lifting assemblies are provided in both the starting enlargement chamber 4 and / or the receiving enlargement chamber 8 for lifting the tunnel boring machine 5.

[0051] Specifically, in this embodiment, both the starting enlargement chamber 4 and the receiving enlargement chamber 8 are equipped with multiple electric hoist lifting assemblies.

[0052] Electric hoist lifting assemblies are installed in the starting enlarged tunnel 4 and the receiving enlarged tunnel 8. Compared with bridge cranes, electric hoist lifting assemblies occupy less space, thereby reducing the excavation scale of the starting enlarged tunnel 4 and the receiving enlarged tunnel 8, reducing construction risks, and saving project investment.

[0053] In an optional embodiment of the present invention, when an electric hoist lifting assembly is installed in the starting enlargement chamber 4, the electric hoist lifting assembly is installed on the top of the starting enlargement chamber 4; when an electric hoist lifting assembly is installed in the receiving enlargement chamber 8, the electric hoist lifting assembly is installed on the top of the receiving enlargement chamber 8.

[0054] Specifically, both the starting enlarged tunnel 4 and the receiving enlarged tunnel 8 are equipped with reinforced concrete formwork linings, and electric hoist lifting assemblies are installed in the arch.

[0055] The electric hoist lifting assembly reduces the space occupied by the lifting equipment, reduces the excavation scale of the starting enlarged chamber 4 and the receiving enlarged chamber 8, reduces project implementation risks and investment, and can adapt to poor geological conditions, thus expanding its applicable scope.

[0056] In an optional embodiment of the present invention, a reaction frame is installed inside the initial enlargement chamber 4.

[0057] Specifically, before the main body and the rear accessories of the tunnel boring machine 5 are connected, the reaction frame is installed; during installation, the gap between the reaction frame and the connection part of the starting enlargement chamber 4 should be padded to ensure that the foot plate of the reaction frame has sufficient compressive strength.

[0058] The reaction frame provides reaction force for tunnel boring machine 5.

[0059] In an optional embodiment of the present invention, the cross-sectional dimensions of the initial enlarged tunnel 4 are larger than those of the tunnel 6, in order to facilitate the installation of the electric hoist lifting assembly and the hoisting and assembly of the tunnel boring machine 5 using the electric hoist lifting assembly.

[0060] In an optional embodiment of the present invention, the axis of the first auxiliary branch tunnel 3 is set to be arc-shaped.

[0061] Specifically, the axis of the first auxiliary branch tunnel 3 is set at an angle to the axis of the initial enlargement chamber 4. More preferably, the axis of the first auxiliary branch tunnel 3 is recessed towards the axis of the initial enlargement chamber 4.

[0062] The axis of the first auxiliary tunnel 3 is set at an angle to the axis of the starting enlargement chamber 4, so that the first auxiliary tunnel 3 can be constructed obliquely from a suitable position on the ground until the starting enlargement chamber 4.

[0063] In an optional embodiment of the present invention, the construction of the receiving enlarged chamber 8 and the second auxiliary branch tunnel 7 is completed before the tunnel boring machine 5 enters the tunnel.

[0064] Specifically, while the tunnel boring machine 5 is excavating the tunnel 6, the receiving enlargement chamber 8 and the second auxiliary adit 7 are being constructed. When the tunnel boring machine 5 reaches the position of the receiving enlargement chamber 8, the receiving enlargement chamber 8 has already been completed. The tunnel boring machine 5 can directly receive, dismantle and lift out the tunnel inside the receiving enlargement chamber 8, which shortens the tunnel construction period and improves the tunnel construction efficiency.

[0065] In an optional embodiment of the present invention, during the tunnel boring machine 5 excavating and processing the tunnel 6, segments, materials and slag are transported through the first auxiliary branch tunnel 3.

[0066] The first auxiliary tunnel 3 can not only transport the disassembled tunnel boring machine 5, but also transport tunnel segments, materials and slag; in addition, the first auxiliary tunnel 3 can be used as a passage for maintenance personnel to enter the starting enlarged tunnel 4.

[0067] In an optional embodiment of the present invention, two receiving enlarged chambers 8 and two auxiliary branch tunnels 7 are provided; the two receiving enlarged chambers 8 are arranged at an axial interval along the starting enlarged chamber 4 and are respectively located on both sides of the starting enlarged chamber 4, and the two second auxiliary branch tunnels 7 are respectively connected to the two receiving enlarged chambers 8.

[0068] Specifically, under normal circumstances, a launching expansion chamber 4 and a receiving expansion chamber 8 are respectively set at both ends of the main tunnel 6. However, when one launching expansion chamber 4 can serve as the launching chamber for both tunnels 6, a receiving expansion chamber 8 can be set at each end of the launching expansion chamber 4 and connected through the tunnel 6, thereby improving the utilization efficiency of the launching expansion chamber 4. Furthermore, the axis of the second auxiliary branch tunnel 7 is set at an angle to the axis of the receiving expansion chamber 8.

[0069] Because the receiving point of the tunnel boring machine 5 is fixed during tunnel construction, for example, when constructing a tunnel through a mountain, due to the large burial depth of the tunnel, directly using the open-cut launching shaft 1 would pose significant construction risks and costs. However, the construction method provided by this invention connects the receiving enlarged chamber 8 with the second auxiliary branch tunnel 7. The entrance of the second auxiliary branch tunnel 7 on the ground can be selected at other suitable locations, and the receiving enlarged chamber 8 is located at the receiving point of the tunnel boring machine 5, reducing construction risks and costs. For example, when constructing a tunnel 6 with structures that cannot be demolished on the ground, the receiving point of the tunnel boring machine 5 is located below these structures, making the open-cut launching shaft 1 unusable. However, the construction method provided by this invention connects the receiving enlarged chamber 8 with the second auxiliary branch tunnel 7. The entrance of the second auxiliary branch tunnel 7 on the ground can be selected at other suitable locations, and the receiving enlarged chamber 8 is located at the receiving point of the tunnel boring machine 5, enabling the use of the shield tunneling method.

[0070] The following details the construction methods for the assembly, launch, disassembly, and hoisting of the shield tunneling machine inside the tunnel:

[0071] Step 1: Please refer to Figure 2 Construction begins on the ground with the first auxiliary tunnel 3 and the initial enlarged tunnel 4.

[0072] Step Two: Please refer to Figure 3 The shield machine 5 is disassembled and transported to the starting enlargement chamber 4 through a flat plate from the ground opening. Inside the starting enlargement chamber 4, the main body of the shield machine 5 is installed and debugged by an electric hoist lifting group, and the reaction frame is installed.

[0073] Step 3: Please refer to Figure 4 The shield machine 5 begins tunneling construction. In the initial stage, the shield machine is in a supporting joint tunneling state. The material is transported to the starting enlargement chamber 4 and connected to the shield machine 5 main body through the first auxiliary adit 3. Finally, the shield machine starting section tunneling construction is completed and then the conventional section shield tunneling construction is carried out. During the construction, the material, slag and tunnel segments are transported through the first auxiliary adit 3.

[0074] Step 4: Please refer to Figure 5 Before the tunnel boring machine 5 completes its excavation, it will receive the enlarged tunnel 8 and the second auxiliary tunnel 7.

[0075] Step 5: Please refer to Figure 6 After the shield tunneling is completed, the shield machine 5 is received in the receiving enlarged tunnel 8. The shield machine 5 is disassembled by the electric hoist lifting group in the receiving enlarged tunnel 8 and transported to the ground through the second auxiliary tunnel 7.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method for the assembly, launching, disassembly, and hoisting of a shield tunneling machine inside a tunnel, characterized in that, include: The construction begins from the ground with the first auxiliary tunnel (3) and the underground starting enlarged cavern (4) connected to the first auxiliary tunnel (3). The disassembled tunnel boring machine (5) is transported to the starting enlargement chamber (4) through the first auxiliary branch tunnel (3) and assembled and debugged; the axis of the first auxiliary branch tunnel (3) is set to be arc-shaped, and the axis of the first auxiliary branch tunnel (3) is recessed towards the axis of the starting enlargement chamber (4); The tunnel boring machine (5) excavates along the axial main tunnel (6) of the starting enlarged chamber (4), which is located at the starting point of the tunnel boring machine (5). The second auxiliary tunnel (7) is constructed from the ground and the underground receiving enlargement chamber (8) is connected to the second auxiliary tunnel (7). The starting enlargement chamber (4) and the receiving enlargement chamber (8) are respectively located at both ends of the tunnel (6). There are two receiving enlargement chambers (8) and two second auxiliary tunnels (7). The two receiving enlargement chambers (8) are spaced apart along the axial direction of the starting enlargement chamber (4) and are located on both sides of the starting enlargement chamber (4). After the tunnel boring machine (5) has been excavated to the receiving enlarged tunnel (8), the tunnel boring machine (5) is disassembled and transported to the ground through the second auxiliary tunnel (7).

2. The construction method for the assembly, launching, disassembly, and hoisting of a shield tunneling machine inside a tunnel according to claim 1, characterized in that, Multiple electric hoist lifting assemblies are installed in the starting enlargement chamber (4) and / or the receiving enlargement chamber (8) for lifting the tunnel boring machine (5).

3. The construction method for the assembly, launching, disassembly, and hoisting of a shield tunneling machine inside a tunnel according to claim 2, characterized in that, When the starting enlargement chamber (4) is equipped with the electric hoist lifting assembly, the electric hoist lifting assembly is installed on the top of the starting enlargement chamber (4); When the receiving enlarged chamber (8) is equipped with the electric hoist lifting assembly, the electric hoist lifting assembly is installed on the top of the receiving enlarged chamber (8).

4. The construction method for the assembly, launching, disassembly, and hoisting out of a tunnel boring machine (TBM) inside the tunnel according to claim 3, characterized in that, A reaction frame is installed inside the initial enlargement chamber (4).

5. The construction method for the assembly, launching, disassembly, and hoisting out of a tunnel boring machine (TBM) inside the tunnel according to claim 1, characterized in that, The cross-sectional dimensions of the initial enlarged chamber (4) are larger than those of the tunnel (6).

6. The construction method for the assembly, launching, disassembly, and hoisting out of a tunnel boring machine (TBM) inside the tunnel according to claim 1, characterized in that, Before the tunnel boring machine (5) enters the tunnel, the construction of the receiving enlarged tunnel (8) and the second auxiliary branch tunnel (7) is completed.

7. The construction method for the assembly, launching, disassembly, and hoisting out of a tunnel boring machine (TBM) inside the tunnel according to claim 1, characterized in that, During the tunneling construction of the tunnel (6) by the tunnel boring machine (5), segments, materials and slag are transported through the first auxiliary branch (3).

8. The construction method for the assembly, launching, disassembly, and hoisting out of a tunnel boring machine (TBM) inside the tunnel according to claim 1, characterized in that, The two second auxiliary branch tunnels (7) are respectively connected to the two receiving enlarged tunnels (8).

Images