A synchronous construction system and construction platform for connecting passages

Abstract

This invention belongs to the field of tunnel boring technology, specifically providing a synchronous construction system and platform for connecting passages. The synchronous construction system includes a synchronous construction platform and four or more main tracks arranged within the main tunnel. Two main tracks are for material transport vehicles in the main tunnel, and two others are for material transport vehicles in the connecting passage. The synchronous construction platform is equipped with wheels that can travel along the main tracks, two docking tracks, and an area for arranging the tunnel boring equipment for the connecting passage. The two docking tracks are located on one side of the arrangement area, and docking sections are provided at both ends of the two docking tracks for connecting with the two main tracks for the material transport vehicles in the main tunnel. This construction platform is the synchronous construction platform in the aforementioned system. During construction, material transport in the connecting passage and the main tunnel is independent; the material transport vehicles in the main tunnel and the connecting passage do not interfere with each other, allowing for synchronous construction and transportation, resulting in higher construction efficiency.

Description

Technical Field

[0001] This invention belongs to the field of tunnel excavation technology, and in particular relates to a synchronous construction system and construction platform for connecting passages. Background Technology

[0002] The "Code for Design of Metro" (GB 50157-2013) and the "Code for Design of Disaster Prevention, Evacuation and Rescue Engineering of Railway Tunnels" (TB10020-2017) stipulate that when the continuous length of two single-track tunnels is greater than 600m, a connecting passage should be provided, and a Class A fire door with two-way opening should be provided at both ends of the passage.

[0003] The mechanical method of excavating connecting passages using full-face tunnel boring machines (MTBF) offers high efficiency and safety, and its application is gradually being expanded. However, when excavating connecting passages using this method, related auxiliary equipment, such as launching devices, electrical control cabinets, and hydraulic pump stations, needs to be located within the main tunnel, inevitably occupying space within the main tunnel. Therefore, to avoid the auxiliary equipment interfering with the passage of material transport vehicles during the main tunnel construction, connecting passage construction is generally carried out after the main tunnel construction is completed. It's easy to understand that separating the construction of connecting passages and the main tunnel into two independent processes still leaves room for improvement in terms of construction efficiency.

[0004] Utility model patent CN219840653U discloses a synchronous construction platform for connecting tunnel construction. The platform includes a frame with a first track, a second track, and a track-switching device (turnout) on it. Both the first and second tracks can connect to the main track inside the main tunnel. The track-switching device switches the connection status of the first and second tracks with the main track. The first track supports the jacking system required for connecting tunnel excavation, while the second track allows material vehicles and personnel to pass through during main tunnel construction. Simultaneously with the main tunnel construction, the connecting tunnel excavation equipment can be jacked forward to excavate the connecting tunnel.

[0005] The aforementioned patent only considers the material transportation issues of the main tunnel during construction. However, the construction of the connecting tunnel also requires the transportation of materials, such as the segments needed for assembly and the excavated soil. As determined in the patent, the main track within the main tunnel consists of only two tracks. When different transport vehicles are used for the materials required for the main tunnel and the connecting tunnel, passing between vehicles is inevitable. During this process, the first and second tracks on the synchronous construction platform must be used flexibly to allow one type of material transport vehicle to give way to the other. This requires one of the transport vehicles to stop and wait for a period of time, affecting material delivery. Furthermore, if one of the transport vehicles malfunctions and becomes stuck behind the synchronous construction platform on the main track, the other transport vehicle must wait for the malfunctioning vehicle to be repaired or towed away before it can pass normally. If the waiting time is too long, the tunneling equipment in either the main tunnel or the connecting tunnel will need to be shut down for a period of time, thus affecting construction efficiency. Therefore, ensuring that the material transportation of the main tunnel and the connecting tunnel does not interfere with each other remains a problem that needs to be solved. Summary of the Invention

[0006] The purpose of this invention is to provide a synchronous construction system for connecting passages, thereby solving the technical problem of low construction efficiency caused by mutual interference in material transportation during the synchronous construction of the main tunnel and connecting passages in the prior art. A further purpose of this invention is to provide a synchronous construction platform for connecting passages, which can be used for the construction of main tunnels with four or more main tracks, thereby achieving non-interference in the transportation of materials in the main tunnel and connecting passages, and improving construction efficiency.

[0007] To achieve the above objectives, the technical solution of the synchronous construction system for communication channels provided by this invention is as follows:

[0008] A synchronous construction system for a connecting passage includes a synchronous construction platform and four or more main tracks arranged laterally at intervals within the main tunnel. Two main tracks are for material transport vehicles to pass through the main tunnel, and two other main tracks are for material transport vehicles to pass through the connecting passage. The synchronous construction platform is equipped with wheels that can travel along the two or more main tracks. The synchronous construction platform has two docking tracks for material transport vehicles to pass through the main tunnel and an arrangement area for arranging tunnel excavation equipment for the connecting passage. The two docking tracks are located on one side of the arrangement area, and both ends of the two docking tracks have docking sections for docking with the two main tracks for material transport vehicles to pass through the main tunnel.

[0009] As a further improvement, both docking tracks include an extension section that is offset away from the arrangement area relative to their respective docking sections.

[0010] As a further improvement, the synchronous construction platform includes a large-span section and a small-span section connected to the rear of the large-span section. The lateral span of the large-span section is greater than the span between the two outermost main tracks. The arrangement area is located in the large-span section. The lateral span of the small-span section is greater than the lateral span of the two main tracks for the passage of the main tunnel material transport vehicles. The traveling wheels configured in the small-span section are used to travel along the two main tracks for the passage of the main tunnel material transport vehicles. The connection point between the small-span section and the large-span section is located at one lateral end of the large-span section. The space between the other lateral end of the small-span section and the large-span section is sufficient for the passage of material transport vehicles in the connecting passage.

[0011] As a further improvement, the long-span section is equipped with traveling wheels for traveling along the two outermost main tracks.

[0012] As a further improvement, the arrangement area is equipped with a connecting tunnel excavation device, which includes a material transfer device for receiving materials from the connecting tunnel material transport vehicle and transferring them forward.

[0013] As a further improvement, the material transfer device includes a column on the synchronous construction platform and a track beam supported by the column. The track beam is used for the material crane to move. The track beam consists of a feeding section, a transition section and a receiving section from front to back. The feeding section is located in the center of the synchronous construction platform, and the receiving section is offset away from the receiving section relative to the feeding section.

[0014] As a further improvement, the arrangement area is equipped with a connecting tunnel excavation device, which includes a tunneling host and a slag discharge device for receiving the slag discharged by the tunneling host and transporting the slag to the slag hopper of the connecting tunnel material transport vehicle.

[0015] As a further improvement, the muck removal device consists of a muck removal pipe connected to the tail of the screw conveyor of the tunneling machine.

[0016] The beneficial effects are as follows: This invention innovatively proposes a synchronous construction system for connecting passages that enables the transportation of materials in the main tunnel and the connecting passages to proceed without interference. Specifically, the main track consists of four or more tracks. During construction, the main tunnel material transport vehicle, which transports materials related to the main tunnel, can travel along two of the tracks, while the connecting passage material transport vehicle, which transports materials related to the connecting passage, can travel along the other two main tracks. While traveling along the main tracks, the main tunnel materials and the connecting passage materials do not interfere with each other. Simultaneously, the synchronous construction platform is equipped with a docking track and a layout area. The relevant tunneling equipment for the connecting passage construction can be arranged in the layout area. The main tunnel material transport vehicle can travel from the main track along the docking section to the docking track on the synchronous construction platform. Since the docking track is on one side of the layout area, the main tunnel material transport vehicle will not affect the normal operation of the connecting passage construction equipment. This ensures synchronous construction of the connecting passage and the main tunnel, as well as synchronous material transportation, thus improving the efficiency of synchronous construction.

[0017] To achieve the above objectives, the technical solution of the synchronous construction platform for communication channels provided by this invention is as follows:

[0018] A synchronous construction platform for connecting passages is equipped with traveling wheels for traveling along two or more main tracks inside the main tunnel. The synchronous construction platform has two docking tracks for material transport vehicles of the main tunnel to pass through and an arrangement area for arranging tunnel excavation equipment for connecting passages. The two docking tracks are located on one side of the arrangement area, and docking sections are provided at both ends of the two docking tracks for docking with the two main tracks for material transport vehicles of the main tunnel to pass through.

[0019] As a further improvement, both docking tracks include an extension section that is offset away from the arrangement area relative to their respective docking sections.

[0020] As a further improvement, the synchronous construction platform for the connecting passage includes a large-span section and a small-span section connected to the rear of the large-span section. The lateral span of the large-span section is greater than the span between the two outermost main tracks inside the main tunnel. The arrangement area is located in the large-span section. The lateral span of the small-span section is greater than the lateral span of the two main tracks inside the main tunnel for material transport vehicles to pass through. The traveling wheels configured in the small-span section are used to travel along the two main tracks for material transport vehicles to pass through the main tunnel. The connection point between the small-span section and the large-span section is located at one lateral end of the large-span section. The space between the other lateral end of the small-span section and the large-span section is sufficient for the passage of material transport vehicles for the connecting passage.

[0021] As a further improvement, the long-span section is equipped with traveling wheels for traveling along the two outermost main tracks inside the main tunnel.

[0022] As a further improvement, the arrangement area is equipped with a connecting tunnel excavation device, which includes a material transfer device for receiving materials from the connecting tunnel material transport vehicle and transferring them forward.

[0023] As a further improvement, the material transfer device includes a column on the synchronous construction platform and a track beam supported by the column. The track beam is used for the material crane to move. The track beam consists of a feeding section, a transition section and a receiving section from front to back. The feeding section is located in the center of the synchronous construction platform, and the receiving section is offset away from the receiving section relative to the feeding section.

[0024] As a further improvement, the arrangement area is equipped with a connecting tunnel excavation device, which includes a tunneling host and a slag discharge device for receiving the slag discharged by the tunneling host and transporting the slag to the slag hopper of the connecting tunnel material transport vehicle.

[0025] As a further improvement, the muck removal device consists of a muck removal pipe connected to the tail of the screw conveyor of the tunneling machine.

[0026] The beneficial effects are as follows: This invention innovatively proposes a synchronous construction platform for main tunnel construction using four or more main tracks arranged laterally at intervals. Specifically, during construction, the main tunnel material transport vehicle, which transports materials related to the main tunnel, can travel along two of the tracks, while the connecting passage material transport vehicle, which transports materials related to the connecting passage, can travel along the other two main tracks. When traveling along the main tracks, the main tunnel materials and the connecting passage materials do not interfere with each other. Simultaneously, the synchronous construction platform is equipped with docking tracks and a layout area. The relevant tunneling equipment for the connecting passage construction can be arranged in the layout area. The main tunnel material transport vehicle can travel from the main tracks along the docking section to the docking track of the synchronous construction platform. Since the docking track is on one side of the layout area, the main tunnel material transport vehicle will not affect the normal operation of the connecting passage construction equipment. This ensures synchronous construction of the connecting passage and the main tunnel, as well as synchronous material transportation, thus improving the efficiency of synchronous construction. Attached Figure Description

[0027] Figure 1 This is a partial axial (main tunnel) view during the construction of an embodiment of the synchronous construction system for connecting passages in this invention;

[0028] Figure 2 This is a front view of an embodiment of the synchronous construction system for connecting channels in this invention;

[0029] Figure 3 This is a top view of the docking section location (track beam omitted) in an embodiment of the synchronous construction system for connecting passages in this invention;

[0030] Figure 4This is an axial view of the location of the outer extension section during construction of an embodiment of the synchronous construction system for the connecting passage in this invention;

[0031] Figure 5 This is an axial view of the docking section location during construction of an embodiment of the synchronous construction system for connecting channels in this invention;

[0032] Figure 6 This is a top view of the docking section location (including the track beam) during construction of an embodiment of the synchronous construction system for connecting channels in this invention;

[0033] Figure 7 This is a schematic diagram of the slag removal structure of the tunneling host during construction in an embodiment of the synchronous construction system for connecting passages in this invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Main track; 2. Synchronous construction platform; 3. Main tunnel material transport vehicle; 4. Connecting passage material transport vehicle; 5. Tunneling main unit; 101. First track; 102. Second track; 201. Traveling wheel; 202. Connecting track; 203. Column; 204. Material hoist; 205. Reverse tension device; 206. Track beam; 207. Small span section; 208. Large span section; 2021. Connecting section; 2022. Outward expansion section; 2061. Feeding section; 2062. Transition section; 2063. Receiving section; 401. Mine truck; 402. Segment truck; 501. Screw conveyor; 502. Mine discharge pipe. Detailed Implementation

[0036] When the main tunnel and connecting passage are constructed simultaneously, the most basic premise is that the supporting equipment used in the construction of the connecting passage must not affect the passage of material transport vehicles for the main tunnel (hereinafter referred to as main tunnel material transport vehicles). During the construction of the connecting passage, there are also materials that need to be transported. The materials mainly include the segments needed for assembly and the excavated soil generated during the excavation process. Naturally, corresponding transport vehicles are also required, namely connecting passage material transport vehicles. The connecting passage material transport vehicles can travel along the main track to transport the materials to the corresponding locations.

[0037] To address the interference issue between material transport vehicles in the connecting tunnel and the main tunnel during transportation, the basic technical concept of this invention is to arrange a main track system with four or more tracks within the main tunnel. The main tunnel material transport vehicle and the connecting tunnel material transport vehicle each travel along their corresponding two main tracks, thus preventing mutual interference. Simultaneously, two docking tracks are installed on the synchronous construction platform to connect with the two tracks corresponding to the main tunnel material transport vehicle. Both ends of these docking tracks can connect to the aforementioned two tracks. During construction, the necessary equipment for the connecting tunnel excavation can be placed on the synchronous construction platform. While the connecting tunnel is being excavated, the main tunnel material transport vehicle can move from the main track to the docking track and back to the main track. Through the synchronous construction platform, the connecting tunnel material transport vehicle can travel along its corresponding two tracks to a position close to the platform to transport materials for the connecting tunnel construction.

[0038] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings.

[0039] Specific embodiments of the synchronous construction system for communication channels provided by this invention:

[0040] The synchronous construction system for communication channels provided in this embodiment is as follows: Figures 1-3 As shown, it includes a synchronous construction platform 2 and a main track 1 that can be arranged inside the main tunnel during use. The main track 1 is a four-track (I-shaped) track, with each main track 1 arranged laterally at intervals along the main tunnel. Of the four main tracks 1, two tracks are used for the passage of material transport vehicles 3 in the main tunnel, and the other two tracks are used for the passage of material transport vehicles 4 in the connecting passage. For ease of description, as... Figure 3 As shown, the two main tracks 1 for the material transport vehicle 4 in the connecting passage are defined as the first track 101, and the two main tracks 1 for the material transport vehicle 3 in the main tunnel are defined as the second track 102.

[0041] It should be noted that the material transport vehicle 4 for the connecting passage and the material transport vehicle 3 for the main tunnel do not refer to a specific vehicle or section. Depending on the excavation needs of the connecting passage and the main tunnel, they may include muck trucks for removing slag, segment trucks for transporting tunnel segments, and tool transport vehicles for transporting cutting tools, etc.

[0042] The synchronous construction platform 2 is equipped with traveling wheels 201 that can travel along two main tracks 1. The two main tracks 1 corresponding to the traveling wheels 201 can support the synchronous construction platform 2. The specific number of traveling wheels 201 is not limited here, and those skilled in the art can flexibly select them according to the load-bearing capacity. Preferably, considering the load-bearing capacity, if the lateral span of the synchronous construction platform 2 is sufficient, the traveling wheels 201 can be configured to travel along the outermost two main tracks 1. This ensures that the traveling wheels 201 have a longer support span for the synchronous construction platform 2, thereby having a stronger load-bearing capacity. In other embodiments, depending on the weight and center of gravity distribution of the equipment mounted on the synchronous construction platform 2, the traveling wheels 201 can also be configured to travel along other two main tracks 1, for example... Figure 1 The first and third main tracks from left to right are 1.

[0043] The synchronous construction platform 2 is equipped with two docking tracks 202 for the passage of the main tunnel material transport vehicle 3. Both ends of the two docking tracks 202 have docking sections 2021. The docking sections 2021 can dock with the second track 102. When the main tunnel material transport vehicle 3 is under construction, it can travel from the second track 102 along the docking section 2021 to the docking track 202, and after traveling a certain distance along the docking track 202, it can return to the main track 1 from the docking section 2021 at the other end to achieve normal passage.

[0044] The synchronous construction platform 2 also includes a layout area for arranging the tunnel excavation equipment. The tunnel excavation equipment refers to the equipment required for the construction of the tunnel, including… Figure 1 The tunneling machine 5 shown, along with its supporting equipment such as an electrical control cabinet and hydraulic pump station, also includes a material transfer device. This material transfer device receives materials from the material transport vehicle 4 in the connecting passage and transports them forward. The aforementioned docking track 202 is located on one side of the layout area, i.e. Figure 1 On the right side of the track, the main tunnel material transport vehicle 3 will not interfere with each other when it moves along the docking track 202, thus ensuring the normal progress of synchronous construction.

[0045] Analysis shows that, in this embodiment, during construction, the main tunnel material transport vehicle 3 and the connecting passage material transport vehicle 4 move along different tracks. For example... Figure 3As shown, the main tunnel material transport vehicle 3 can travel along the second track 102 and then through the docking track 202 before continuing along the second track 102. The connecting passage material transport vehicle 4 can travel along the first track 101 to the rear of the synchronous construction platform 2 to meet the construction needs of the connecting passage. Compared with the prior art, in this embodiment, the material transport during the construction of the connecting passage and the main tunnel is independent. The main tunnel material transport vehicle 3 and the connecting passage material transport vehicle 4 will not affect each other and can be constructed and transported synchronously, resulting in higher construction efficiency.

[0046] like Figures 1-3 As shown, due to the large amount of equipment required for the construction of the connecting passage, the synchronous construction platform 2 also has a relatively long length in both the front and rear directions. Among the various related equipment, the tunneling host 5 has the largest volume and occupies the most space. For main tunnels with smaller diameters, the main track 1 is generally located at the bottom of the main tunnel. However, the space at the bottom of the main tunnel is limited, which may cause the main tunnel material transport vehicle 3 to be unable to pass smoothly through the docking track 202. Figure 3 and Figure 4 As shown, in the preferred embodiment, the two docking tracks 202 also include an outwardly extending section 2022 offset from the docking section 2021. The distance between the outwardly extending section 2022 and the arrangement area is greater than the distance between the docking section 2021 and the arrangement area. This ensures that the material transport vehicle 3 of the main tunnel will not interfere with larger equipment in the arrangement area when it passes through. Of course, in other embodiments, for main tunnels with larger diameters, the distance between adjacent lines in the main track 1 is sufficient, and the width of the synchronous construction platform 2 is also sufficient to accommodate the equipment. In this case, the docking track 202 can also be made to extend in the same direction as the second track 102 in the main track 1.

[0047] To move the material transport vehicle 4 of the connecting passage closer to the tunneling machine 5 for easier material receiving and transport, further, considering the different lateral span sizes, such as... Figure 3 As shown, the synchronous construction platform 2 includes a large-span section 208 and a small-span section 207. The small-span section 207 is connected to the rear side of the large-span section 208, preferably by a hinged connection. The lateral span of the large-span section 208 is greater than the span between the two outermost main tracks 1, ensuring that the synchronous construction platform 2 has a larger area for placing equipment. The equipment placement area is actually located in the large-span section 208, and the traveling wheels 201 configured in the small-span section 207 actually travel along the second track 102. Figure 3As shown, the connection point between the small span section 207 and the large span section 208 is located at one lateral end of the large span section 208, and the space between the other lateral ends of the small span section 207 and the large span section 208 is sufficient for the passage of the connecting tunnel material transport vehicle 4. In this way, during construction, the connecting tunnel material transport vehicle 4, such as the dump truck 401 and the segment truck 402, can be moved closer to the large span section 208, that is, closer to the equipment located in the layout area, facilitating material transport. As mentioned above, the large span section 208 has a large lateral span. Considering the support and load-bearing capacity, the traveling wheels 201 of the large span section 208 preferably travel along the two outermost main tracks 1. It should be noted that the main tunnel material transport vehicle 3 travels at a very slow speed. The second tracks 102 located in different span sections do not need to be welded or can be connected with fasteners, as long as the ends can be smoothly connected to allow the main tunnel material transport vehicle 3 to pass.

[0048] Furthermore, regardless of whether the synchronous construction platform 2 has a uniform span or includes different segments of varying spans in its longitudinal direction, for main tunnels with smaller diameters, such as those less than 7m, the material transport vehicle 4 for the connecting passage is actually located off-center on the side of the main tunnel during actual construction. The tunneling machine 5, however, is larger, and its tail end reaches the center of the main tunnel. To facilitate the transport of materials from the material transport vehicle 4 to the tunneling machine 5, in this embodiment, the material transfer device includes a column 203 and a track beam 206. The column 203 is directly mounted on the connecting passage construction platform, and the track beam 206 is mounted on and supported by the column 203. The track beam 206 allows the material crane 204 (track crane) to travel. Figure 6 As shown, the track beam 206 consists of a feeding section 2061, a transition section 2062, and a receiving section 2063 from front to back. The feeding section 2061 (in its vertical projection) is located in the center of the synchronous construction platform 2. The receiving section 2063 is offset relative to the feeding section 2061 towards the first track 101, or rather, away from the docking track 202. This allows the material crane 204 to move along the track beam 206 to a position close to the segment trolley 402 and to lift the segments or other materials from the segment trolley 402 to the position of the tunneling machine 5. Figure 5 As shown, the position of the material hoist 204 can be moved closer to the material transport vehicle 4 in the connecting passage to facilitate material handling. Similarly, in other embodiments, if the diameter of the main tunnel is large and there is sufficient space inside the main tunnel to accommodate the starting of the tunneling host 5 and the transport of corresponding materials, the track beam 206 can also be made into a straight line. Alternatively, other forms of material transfer devices can be used, such as a material transfer trolley (vehicle-mounted crane) equipped with a boom, which can move flexibly on the synchronous construction platform 2 to transfer materials between the segment car 402 and the tunneling host 5.

[0049] The tunneling host 5 can be a shield tunneling machine host or a pipe jacking machine host, such as... Figure 1 As shown, a reverse pull device 205 is required during construction. If the tunneling host 5 is a pipe jacking machine host, the reverse pull device 205 needs to be equipped with a reverse pull cylinder, which pushes the tunneling host 5 and the tunnel segments forward. In addition, the tunneling host 5 is also connected to a muck removal device, which is mainly used to receive the muck from the tunneling host 5 and discharge it into the hopper of the material transport vehicle 4 of the connecting passage, which is the muck truck 401.

[0050] For small-diameter main tunnels, in order to ensure that the excavated soil discharged by the screw conveyor 501 of the tunneling machine 5 can be smoothly discharged into the dump truck 401, such as Figure 7 As shown, a muck discharge pipe 502 with a turning section is connected to the tail end of the screw conveyor 501 of the tunneling machine 5. The muck discharge pipe 502 can guide the muck flow to the muck truck 401 to achieve smooth muck discharge. The muck discharge pipe 502 forms the above-mentioned muck discharge device. The size of the muck discharge pipe 502 is more compact and more suitable for small-diameter main tunnels. In fact, for main tunnels with larger diameters, the muck discharge device can also use a belt conveyor. One end of the belt conveyor can be set below the muck discharge port at the tail of the screw conveyor 501, and the other end extends to the synchronous construction platform 2. During construction, the muck truck 401 can travel under the belt conveyor to receive the muck.

[0051] It should also be noted that in different implementations, the main track 1 can be arranged with five or even more tracks. At the most basic level, there should still be two main tracks 1 for the material transport vehicle 3 of the main tunnel to pass through, and two main tracks 1 for the material transport vehicle 4 of the connecting passage to pass through. However, if possible, the synchronous construction platform 2 can also be equipped with three rows of traveling wheels 201 on the left, middle and right to travel along the three main tracks 1.

[0052] Specific embodiments of the synchronous construction platform for communication channels in this invention:

[0053] The embodiment of the synchronous construction platform for the communication channel is the synchronous construction platform described in the embodiment of the synchronous construction system for the communication channel described above, and will not be described in detail here.

[0054] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A synchronous construction system for connecting passages, characterized in that, The system includes a synchronous construction platform and four or more main tracks arranged laterally within the main tunnel. Two main tracks are for material transport vehicles in the main tunnel, and two more are for material transport vehicles in the connecting tunnel. The synchronous construction platform is equipped with wheels that can travel along the two or more main tracks. The platform also includes two connecting tracks for the main tunnel material transport vehicles and an area for arranging the tunnel excavation equipment. The two connecting tracks are located on one side of the area, and both ends of the two connecting tracks are equipped with two main tracks for connecting with the main tunnel material transport vehicles. The connecting section, the synchronous construction platform includes a large-span section and a small-span section connected to the rear of the large-span section. The lateral span of the large-span section is greater than the span between the two outermost main tracks. The arrangement area is located in the large-span section. The lateral span of the small-span section is greater than the lateral span of the two main tracks for the passage of the main tunnel material transport vehicles. The traveling wheels configured in the small-span section are used to travel along the two main tracks for the passage of the main tunnel material transport vehicles. The connection position between the small-span section and the large-span section is located at one lateral end of the large-span section. The space between the other lateral end of the small-span section and the large-span section is sufficient for the passage of the connecting passage material transport vehicles.

2. The synchronous construction system for connecting passages according to claim 1, characterized in that, Both docking tracks include an extension section that is offset away from the arrangement area relative to their respective docking sections.

3. The synchronous construction system for connecting passages according to claim 1, characterized in that, The long-span section is equipped with traveling wheels for traveling along the two outermost main tracks.

4. The synchronous construction system for connecting passages according to claim 1 or 2, characterized in that, The layout area is equipped with connecting tunnel excavation equipment, which includes a material transfer device for receiving materials from the connecting tunnel material transport vehicle and transferring them forward.

5. The synchronous construction system for connecting passages according to claim 4, characterized in that, The material transfer device includes a column on the synchronous construction platform and a track beam supported by the column. The track beam is used for the material crane to move. The track beam consists of a feeding section, a transition section and a receiving section from front to back. The feeding section is located in the center of the synchronous construction platform, and the receiving section is offset away from the receiving section relative to the feeding section.

6. The synchronous construction system for connecting passages according to claim 1 or 2, characterized in that, The layout area is equipped with a connecting tunnel excavation device, which includes a tunneling host and a slag discharge device for receiving the slag discharged by the tunneling host and transporting the slag to the slag hopper of the connecting tunnel material transport vehicle.

7. The synchronous construction system for connecting passages according to claim 6, characterized in that, The muck removal device consists of a muck removal pipe connected to the tail of the screw conveyor of the tunneling machine.

8. A platform for synchronous construction of a connecting passage, characterized in that, The synchronous construction platform for the connecting passage is equipped with traveling wheels for moving along two or more main tracks inside the main tunnel. The platform has two connecting tracks for the passage of material transport vehicles for the main tunnel and an area for arranging the tunneling equipment for the connecting passage. The two connecting tracks are located on one side of the arrangement area. Both ends of the two connecting tracks have connecting sections for connecting with the two main tracks for the passage of material transport vehicles. The synchronous construction platform for the connecting passage includes a large-span section and a small-span section connected to the rear of the large-span section. The lateral span of the large-span section is greater than the span between the two outermost main tracks inside the main tunnel. The arrangement area is located within the large-span section. The lateral span of the small-span section is greater than the lateral span of the two main tracks for the passage of material transport vehicles inside the main tunnel. The traveling wheels on the small-span section are used to move along the two main tracks for the passage of material transport vehicles. The connection point between the small-span section and the large-span section is located at one lateral end of the large-span section. The space between the other lateral ends of the small-span section and the large-span section is sufficient for the passage of material transport vehicles for the connecting passage.

9. The synchronous construction platform for the connecting passage according to claim 8, characterized in that, Both docking tracks include an extension section that is offset away from the arrangement area relative to their respective docking sections.

10. The synchronous construction platform for the connecting passage according to claim 8, characterized in that, The long-span section is equipped with traveling wheels for traveling along the two outermost main tracks inside the main tunnel.

11. The synchronous construction platform for the communication channel according to claim 8 or 9, characterized in that, The layout area is equipped with connecting tunnel excavation equipment, which includes a material transfer device for receiving materials from the connecting tunnel material transport vehicle and transferring them forward.

12. The synchronous construction platform for the connecting passage according to claim 11, characterized in that, The material transfer device includes a column on the synchronous construction platform and a track beam supported by the column. The track beam is used for the material crane to move. The track beam consists of a feeding section, a transition section and a receiving section from front to back. The feeding section is located in the center of the synchronous construction platform, and the receiving section is offset away from the receiving section relative to the feeding section.

13. The synchronous construction platform for the connecting passage according to claim 8 or 9, characterized in that, The layout area is equipped with a connecting tunnel excavation device, which includes a tunneling host and a slag discharge device for receiving the slag discharged by the tunneling host and transporting the slag to the slag hopper of the connecting tunnel material transport vehicle.

14. The synchronous construction platform for the connecting passage according to claim 13, characterized in that, The muck removal device consists of a muck removal pipe connected to the tail of the screw conveyor of the tunneling machine.

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