Connection channel and main tunnel synchronous construction material transportation method and system

Abstract

The invention belongs to the technical field of transportation special for underground conditions, and particularly provides a material transportation method and system for synchronous construction of a connection channel and a main tunnel. The tunneling direction of a main tunnel is defined as the front, the method comprises the steps that a main tunnel material transport vehicle and a contact channel material transport vehicle are connected in the same group, the contact channel material transport vehicle is located in front of a locomotive, and when materials are transported forwards, the locomotive drags the contact channel material transport vehicle to move in place along a branch rail of a construction platform; separating the contact channel material transport vehicle from the marshalling, and enabling other vehicles to continuously pass along the main track of the construction platform; and when the materials are conveyed backwards, at least part of the vehicles in the marshalling move to the branch rails, and then the contact channel material transport vehicles are merged into the marshalling. A branch track and a main track for realizing the method are arranged on a construction platform of the system. Normal transportation of materials of the connection channel and the main tunnel can be achieved only through one set of marshalling, and the project construction cost can be controlled within a low range.

Description

Technical Field

[0001] The present invention belongs to the technical field of transportation specially used in underground conditions, and in particular relates to a method and system for transporting materials for synchronous construction of a communication channel and a main tunnel. Background Art

[0002] The "Metro Design Code" (GB 50157-2013) and the "Railway Tunnel Disaster Prevention, Evacuation and Rescue Engineering Design Code" (TB10020-2017) stipulate that between two single-track section tunnels, when the continuous length of the tunnel is greater than 600m, a communication passage should be set up, and two-way opening Class A fire doors should be installed at both ends of the passage.

[0003] The mechanical method of excavating the communication channel using full-section tunnel boring equipment has high efficiency and safety, and has been gradually promoted and applied. When the mechanical method is used to excavate the communication channel, the relevant supporting devices, such as the starting device, the electric control cabinet, the hydraulic pump station and other devices need to be arranged in the main tunnel, which will inevitably occupy the space in the main tunnel. Therefore, in order to avoid the related supporting devices during the construction of the communication channel affecting the passage of material transport vehicles during the construction of the main tunnel, the communication channel is generally constructed after the construction of the main tunnel is completed. It is not difficult to understand that there is still room for improvement in construction efficiency by dividing the construction of the communication channel and the main tunnel into two independent processes.

[0004] The utility model patent with the authorization announcement number CN219840653U discloses a synchronous construction platform for the construction of a connecting channel, which includes a frame, on which a first track, a second track and a track-changing device (turnout) are arranged, and the first track and the second track can both be docked with the track in the main tunnel, and the track-changing device is used to switch the docking state between the first track and the second track and the track in the main tunnel. Among them, the first track can support the jacking system during the excavation construction of the connecting channel, and the second track can be used for the passage of material vehicles and personnel during the construction of the main tunnel, thereby realizing the jacking of the connecting channel excavation equipment to excavate the connecting channel forward without affecting the passage of material vehicles during the construction of the main tunnel.

[0005] The above patent only considers the material transportation problem of the main tunnel during construction. The construction of the connecting channel also requires the transportation of materials. The materials referred to here include the materials required for construction (such as pipe segments) and the slag generated during construction. The above patent does not disclose how the materials for the connecting channel construction are transported. In order to be able to transport more pipe segments and slag, the field generally adopts rail marshaling to transport materials, where the marshaling includes a locomotive equipped with an electric motor or an internal combustion engine and a plurality of transport vehicles (pipe segment vehicles and slag vehicles) towed by the locomotive in series. On this basis, in order to transport the materials of the connecting channel and the main tunnel, two independent marshaling sets are usually required, which will increase the cost of the project. Summary of the invention

[0006] The purpose of the present invention is to provide a method for transporting materials for synchronous construction of a connecting channel and a main tunnel, so as to solve the technical problem of high cost when using two sets of independent marshaling to transport materials for the connecting channel and the main tunnel respectively. The purpose of the present invention is also to provide a synchronous construction system for a connecting channel and a main tunnel, so as to cooperate with the same set of material marshaling construction and reduce the material transportation cost.

[0007] To achieve the above-mentioned purpose, the technical solution of the method for synchronously constructing materials for the communication channel and the main tunnel provided by the present invention is: A material transportation method for synchronous construction of a connecting channel and a main tunnel, defining the main tunnel excavation direction as forward, the method comprising connecting the main tunnel material transport vehicle and the connecting channel material transport vehicle to the same formation, wherein the connecting channel material transport vehicle is located in front of a locomotive, when transporting materials forward, the locomotive drags the connecting channel material transport vehicle along a branch track of a construction platform to move into position, and then separates the connecting channel material transport vehicle from the formation, parks the connecting channel material transport vehicle, and the remaining vehicles continue to travel along the main track of the construction platform; when transporting materials backward, at least part of the vehicles in the formation move to the branch track, and then the connecting channel material transport vehicle is merged into the formation.

[0008] As a further improvement, the communication channel material transport vehicle is arranged at the end position of the formation.

[0009] As a further improvement, the connecting channel material transport vehicle includes a connecting channel segment vehicle and a connecting channel muck vehicle. In the formation, the connecting channel segment vehicle is located in front of the connecting channel muck vehicle.

[0010] As a further improvement, the main tunnel material transport vehicle includes a main tunnel segment vehicle and a main tunnel muck vehicle. In the formation, the main tunnel segment vehicle is located in front of the locomotive.

[0011] The present invention is a pioneering invention, and its beneficial effects are: during construction, the liaison channel material transport vehicle for transporting the liaison channel construction materials and the main tunnel material transport vehicle for transporting the main tunnel construction materials are the same marshaling, wherein the construction platform used in conjunction is provided with a branch track and a main track that can be docked with the main tunnel track, if it is necessary to transport materials forward, the locomotive can push the liaison channel material transport vehicle in front of it to move to the branch track through the main tunnel track to meet the needs of the liaison channel construction, and on the premise that the liaison channel material transport vehicle is in place, the connection relationship between the liaison channel material transport vehicle and the marshaling can be released, the liaison channel material transport vehicle is parked in place and waits, and the remaining vehicles of the marshaling (locomotive and main tunnel material transport vehicle) can continue to pass along the main track to meet the needs of the main tunnel construction; if it is necessary to transport materials backward, when the marshaling moves to the position of the construction platform, some or all of the vehicles are moved to the branch track, and then the liaison channel material transport vehicle is connected to the vehicle and incorporated into the marshaling to complete the transportation of materials in and out of the construction. It can be seen from the analysis that only one set of transport marshaling is required to transport materials for the synchronous construction of the liaison channel and the main tunnel using the present invention, which can effectively control the project cost.

[0012] To achieve the above purpose, the technical solution of the synchronous construction system of the communication channel and the main tunnel provided by the present invention is: A synchronous construction system for a communication channel and a main tunnel comprises a construction platform and a main boring machine. The main boring machine is fixed relative to the construction platform in the front and rear directions. The construction platform is provided with a main track, a branch track and a track-changing device for switching the main track and the branch track to the main tunnel track. The main track is located on the back side of the main boring machine and its two ends are respectively used to connect with the main tunnel tracks on the front and rear sides of the construction platform for marshaling. The branch track extends to one side of the main boring machine and is provided with a parking space for a communication channel material transport vehicle to park.

[0013] As a further improvement, the construction platform includes multiple trolleys connected in front and back sequence. The excavation main machine is arranged on one of the trolleys, and the supporting equipment required for the excavation main machine is arranged on the remaining trolleys. The supporting equipment is located on the side of the parking space away from the main track.

[0014] As a further improvement, a segment lifting device is provided on the construction platform, and the segment lifting device includes a crane beam and a segment crane moving along the crane beam, and the moving stroke of the segment crane satisfies that the segment crane can be moved above the parking space.

[0015] As a further improvement, the system also includes a material transport formation, which includes a locomotive and a material transport vehicle towed by the locomotive, the material transport vehicle includes a connecting channel material transport vehicle and a main tunnel material transport vehicle, and the locomotive is located between the material transport vehicles.

[0016] As a further improvement, the communication channel material transport vehicle is located at the end of the formation.

[0017] As a further improvement, the connecting channel material transport vehicle includes a connecting channel segment vehicle and a connecting channel muck vehicle, and the connecting channel segment vehicle is located at one end of the connecting channel muck vehicle away from the locomotive.

[0018] The present invention is a pioneering invention, and its beneficial effects are: after the construction platform is moved into place, the excavation main engine can start to excavate the liaison channel normally, and by adjusting the track-changing device, the material transport marshaling can be selectively moved from the main tunnel track to the main track or the branch track. Since the branch track has a parking space, this can meet the requirements of connecting the liaison channel material transport vehicle and the main tunnel material transport vehicle to the same marshaling, and realize the material transportation of the liaison channel and the main tunnel under the premise of low cost. Specifically, if it is necessary to transport materials forward, the locomotive can push the liaison channel material transport vehicle in front of it to move from the main track to the branch track to meet the construction needs of the liaison channel. On the premise that the liaison channel material transport vehicle is in place, the connection relationship between the liaison channel material transport vehicle and the marshaling can be released, and the liaison channel material transport vehicle is parked in place and waits, and the remaining vehicles of the marshaling (locomotive and main tunnel material transport vehicle) can continue to pass along the main track to meet the construction needs of the main tunnel; if it is necessary to transport materials backward, when the marshaling moves to the position of the construction platform, some or all of the vehicles move to the branch track, and then the liaison channel material transport vehicle is connected to the vehicle and incorporated into the marshaling, so as to complete the transportation of materials in and out during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of an embodiment of the material transportation method for synchronous construction of a communication channel and a main tunnel in a certain state in the present invention; Figure 2 It is a structural schematic diagram of the grouping formed by the embodiment of the method for transporting materials for synchronous construction of the communication channel and the main tunnel in the present invention; Figure 3 It is a schematic diagram of a first state of an embodiment of a material transportation method for synchronous construction of a communication channel and a main tunnel in the present invention when transporting materials forward; Figure 4 It is a schematic diagram of a second state of the embodiment of the material transportation method for synchronous construction of the communication channel and the main tunnel in the present invention when transporting materials forward; Figure 5 It is a schematic diagram of the third state of the embodiment of the material transportation method for synchronous construction of the communication channel and the main tunnel in the present invention when transporting materials forward.

[0020] Description of reference numerals: 1. Construction platform; 2. Excavation main machine; 3. Segment crane; 4. Crane beam; 5. Pedestrian walkway; 6. Branch track; 7. Main track; 8. Material transport marshaling; 801. Link channel segment vehicle; 802. Link channel muck truck; 803. Main tunnel segment vehicle; 804. Locomotive; 805. Main tunnel muck truck; 9. Ancillary equipment; 100. Main tunnel track; 201. Reverse pull cylinder. DETAILED DESCRIPTION

[0021] In order to provide a lower-cost material transportation method that meets the construction material transportation needs of the main tunnel and connecting channel, the basic technical concept of the present invention is to use the same set of marshaling to transport the connecting channel and main tunnel materials. Specifically, when transporting materials forward, the marshaling first delivers the connecting channel material transport vehicle to the location, and then separates the connecting channel material transport vehicle from the marshaling, and the remaining vehicles in the marshaling continue to transport forward.

[0022] The present invention is further described in detail below in conjunction with embodiments.

[0023] Specific embodiments of the method for synchronously constructing materials for the communication channel and the main tunnel provided by the present invention are as follows: The material transportation method for synchronous construction of the communication channel and the main tunnel provided in this embodiment can be implemented in the case of synchronous construction of the communication channel and the main tunnel. Specifically, a synchronous construction system of the communication channel and the main tunnel needs to be used. The construction system includes a construction platform 1 and a tunneling host 2. Figure 1 , Figure 3-Figure 5 As shown, the construction platform 1 includes a plurality of trolleys connected in sequence, and the bottom of the trolley is provided with running wheels that can run along the main tunnel track 100. During construction, the trolley can move along the main tunnel track 100 as needed. The upper part of the construction platform 1 is used to arrange the relevant structures and equipment during construction, such as Figure 1 As shown, a boring machine 2 can be arranged on one of the trolleys, and this trolley directly constitutes the starting trolley, that is, the position of the boring machine 2 relative to the front-to-back direction of the construction platform 1 (i.e., the front-to-back direction of the main tunnel) is relatively fixed. The boring machine 2 refers to the boring machine main machine of the excavation communication channel, which can specifically be a pipe jacking machine main machine or a shield machine main machine. When the boring machine 2 is a pipe jacking machine main machine, the reverse pulling cylinder 201 that pushes the pipe jacking machine main machine forward can be installed on the wall of the main tunnel during construction, which can save space. Of course, in other embodiments, in addition to the construction platform 1 formed by splicing multiple trolleys, the construction platform can also be an integral frame platform.

[0024] like Figure 1 , Figure 3-Figure 5As shown, the construction platform 1 is also provided with a branch track 6 and a main track 7, both of which can be docked with the main tunnel track 100. The construction platform 1 is also provided with a track-changing device for switching the docking position of the branch track 6 and the main track 7 with the main track, which can be specifically realized by a turnout structure, wherein the main track 7 is located on the back side of the excavation main machine 2, and its two ends in the length direction are respectively used to dock with the main tunnel tracks 100 on the front and rear sides of the construction platform. During construction, the material transport marshaling 8 can pass through the main track 7 without affecting the normal transportation of the main tunnel construction materials. The branch track 6 extends to one side of the excavation main machine 2, and is mainly used for the movement and parking of the material transport vehicle of the connecting channel. Its extension length needs to meet the requirement that the material transport vehicle of the connecting channel can move to and stay at a certain position, such as the position for transporting pipe segments, the position for receiving slag, etc., that is, the branch track 6 is provided with a parking space for the material transport vehicle of the connecting channel to park and stay.

[0025] It should be noted that Figure 3-Figure 5 The starting trolley for arranging the tunneling main machine 2 is not shown. However, in addition to the starting trolley, other trolleys can be arranged with the supporting equipment 9 required by the tunneling main machine 2, and the supporting equipment 9 includes a hydraulic pump station, an electric control cabinet, etc. In order to avoid the supporting equipment 9 from interfering with the branch track 6, the supporting equipment 9 should be arranged on the side of the branch track 6 away from the main track 7.

[0026] In addition, a segment lifting device for lifting segments is also installed on the construction platform 1, and the segment lifting device includes a segment crane 3 and a crane beam 4. The segment crane 3 can move along the crane beam 4. Specifically, a track for guiding the segment crane 3 can be installed on the crane beam 4. However, in order to ensure the smooth lifting of the segment, the movement of the segment crane 3 needs to meet the requirement that the segment crane 3 can move above the parking space.

[0027] In addition, in order to facilitate the passage of pedestrians, the frame constituting the pedestrian passage 5 can be installed on the tunnel wall.

[0028] like Figure 2As shown, the connecting channel material transport vehicle for transporting the connecting channel construction materials and the main tunnel material transport vehicle for transporting the main tunnel construction materials are connected in the same formation. Basically, since the main tunnel and the connecting channel need to assemble segments and discharge slag to the outside during construction, the connecting channel material transport vehicle includes a connecting channel segment vehicle 801 and a connecting channel slag vehicle 802, and the main tunnel material transport vehicle includes a main tunnel segment vehicle 803 and a main tunnel slag vehicle 805. According to actual needs, each segment vehicle and each slag vehicle can include more than one. In fact, the material transport formation 8 can also include a mortar vehicle during construction. Of course, the material transport formation 8 also includes a locomotive 804. The locomotive 804 can be a diesel locomotive or an electric locomotive. When the locomotive 804 is an electric locomotive, a power battery can also be installed on the locomotive 804. The vehicles in the material transport formation 8 can be connected by a coupler in the prior art. In order to facilitate the description of this embodiment, the excavation direction of the main tunnel construction is first defined as forward, that is, Figure 2-Figure 5 In the preferred embodiment, the communication channel material transport vehicle is located at the end of the formation, so that Figure 2 For example, the connecting channel segment vehicle 801 and the connecting channel muck vehicle 802 are located in front of the locomotive 804 and at the front end of the entire formation.

[0029] When transporting materials forward, Figure 3 As shown, under the dragging action of the locomotive 804, the liaison channel material transport vehicle can move along the main tunnel track 100 to the target position of the branch track 6 to meet the liaison channel construction requirements. Then, the connection relationship between the liaison channel material transport vehicle and the marshaling is released, so that the liaison channel material transport vehicle is separated from the marshaling and waits in the parking position, as shown in FIG. Figure 4 and Figure 5 As shown, the remaining vehicles in the formation then return to the position of the main tunnel track 100 and switch to the main track 7 to continue passing until the main tunnel material transport vehicle moves to its position. The process of transporting materials (mainly slag) backward is the opposite of the process of transporting materials forward, and this includes the step of reintegrating the connecting channel material transport vehicle into the formation. Specifically, when transporting materials backward, under the dragging action of the locomotive 804, some vehicles in the formation (vehicles that can be connected to the connecting channel material transport vehicle) move to the branch track 6, and then the connecting channel material transport vehicle is connected to the vehicle to be incorporated into the formation, and the formation as a whole moves backward again.

[0030] By analyzing the above process, it can be seen that in this embodiment, only one set of marshaling is needed to meet the normal transportation of materials in the connecting channel and the main tunnel, and the project construction cost can be controlled in a relatively low range.

[0031] At the same time, since the liaison channel material transport vehicle is located at the end position of the formation, when transporting materials forward, the liaison channel material transport vehicle can be directly sent to the position of the branch track 6, and then the connection relationship between the liaison channel material transport vehicle and the formation can be released, which is convenient and efficient. Of course, in other implementations, it is not excluded that the main tunnel material transport vehicle is set at the end position of the formation. At this time, the main tunnel material transport vehicle can be first sent to the main track 7 and the connection relationship between the main tunnel material transport vehicle and the formation can be released and wait in place, so that the liaison channel material transport vehicle is located at the front head position, and then the formation moves along the branch track 6 to send the liaison channel material transport vehicle to the position, and then the formation moves along the main track 7 to merge the waiting main tunnel material transport vehicle on the main track 7 into the formation. In the above implementations, for the material transportation formation, the locomotive 804 can actually be set between the material transport vehicles including the main tunnel material transport vehicle and the liaison channel material transport vehicle.

[0032] Considering that the pipe segments need to be hoisted to the assembly position during construction, for the material transport vehicle of the connecting channel, Figure 2 As shown, the connecting channel segment vehicle 801 can be arranged in front of the connecting channel muck vehicle 802, that is, the connecting channel segment vehicle 801 is arranged on the side of the connecting channel muck vehicle 802 away from the locomotive 804, so that the segments on the connecting channel segment vehicle 801 can be conveniently lifted away. At this time, in order to facilitate the slag discharge, the slag discharge pipe, belt conveyor and other devices can be used to guide the slag discharged from the main excavation machine 2 to the connecting channel muck vehicle 802. Similarly, for the main tunnel material transport vehicle, in a preferred embodiment, in order to facilitate the lifting of the segments, the main tunnel segment vehicle 803 can be arranged in front of the locomotive 804.

[0033] Specific embodiments of the synchronous construction system of the communication channel and the main tunnel in the present invention: The synchronous construction system of the communication channel and the main tunnel in the present invention is the synchronous construction system of the communication channel and the main tunnel recorded in the above-mentioned synchronous construction material transportation method of the communication channel and the main tunnel, which will not be described in detail here. However, it should be noted that for the entire system, it can include a material transportation marshaling, and the entire system as a complete product may not include a material transportation marshaling, and the construction party can purchase an independent marshaling separately according to needs.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for transporting materials for synchronous construction of a liaison channel and a main tunnel, characterized in that: The main tunnel excavation direction is forward, and the method includes connecting the main tunnel material transport vehicle and the connecting channel material transport vehicle in the same formation, wherein the connecting channel material transport vehicle is located in front of the locomotive. When transporting materials forward, the locomotive drags the connecting channel material transport vehicle along the branch track of the construction platform to move into position, and then separates the connecting channel material transport vehicle from the formation, and the connecting channel material transport vehicle is parked, and the remaining vehicles continue to travel along the main track of the construction platform; when transporting materials backward, at least part of the vehicles in the formation are moved to the branch track, and then the connecting channel material transport vehicle is merged into the formation.

2. The method for transporting materials for synchronous construction of a communication channel and a main tunnel according to claim 1 is characterized in that: The material transport vehicle for the communication channel shall be located at the end of the formation.

3. The method for transporting materials for synchronous construction of a communication channel and a main tunnel according to claim 1 or 2 is characterized in that: The connecting channel material transport vehicle includes a connecting channel segment vehicle and a connecting channel muck vehicle. In the marshaling, the connecting channel segment vehicle is located in front of the connecting channel muck vehicle.

4. The method for transporting materials for synchronous construction of a communication channel and a main tunnel according to claim 1 or 2 is characterized in that: The main tunnel material transport vehicles include the main tunnel segment vehicle and the main tunnel muck vehicle. In the marshaling, the main tunnel segment vehicle is located in front of the locomotive.

5. A synchronous construction system for a communication channel and a main tunnel, characterized in that: It includes a construction platform and a tunneling main machine. The position of the tunneling main machine is fixed relative to the construction platform in the front and rear directions. The construction platform is provided with a main track, a branch track and a track changing device for switching the docking position of the main track and the branch track with the main tunnel track. The main track is located on the back side of the tunneling main machine and its two ends are respectively used to dock with the main tunnel tracks on the front and rear sides of the construction platform for marshaling to pass. The branch track extends to one side of the tunneling main machine and is provided with a parking space for the material transport vehicle of the communication channel to park.

6. The synchronous construction system of the communication channel and the main tunnel according to claim 5 is characterized in that: The construction platform consists of multiple trolleys connected in front and back. The excavation main machine is arranged on one of the trolleys, and the supporting equipment required for the excavation main machine is arranged on the other trolleys. The supporting equipment is located on the side of the parking space away from the main track.

7. The synchronous construction system of the communication channel and the main tunnel according to claim 5 or 6 is characterized in that: A segment lifting device is provided on the construction platform, and the segment lifting device includes a crane beam and a segment crane moving along the crane beam. The moving stroke of the segment crane is sufficient to enable the segment crane to move above the parking space.

8. The synchronous construction system of the communication channel and the main tunnel according to claim 5 or 6 is characterized in that: The system also includes a material transport marshaling, which includes a locomotive and a material transport vehicle towed by the locomotive. The material transport vehicle includes a connecting channel material transport vehicle and a main tunnel material transport vehicle, and the locomotive is located between the material transport vehicles.

9. The synchronous construction system of the communication channel and the main tunnel according to claim 8 is characterized in that: The material transport vehicle for the communication channel is located at the end of the formation.

10. The synchronous construction system of the communication channel and the main tunnel according to claim 9 is characterized in that: The connecting channel material transport vehicle comprises a connecting channel segment vehicle and a connecting channel muck vehicle. The connecting channel segment vehicle is located at one end of the connecting channel muck vehicle away from the locomotive.

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