Combined pipe curtain construction equipment and construction method

Abstract

The present application relates to the technical field of tunnel construction, specifically a combined pipe curtain construction equipment and construction method. The combined pipe curtain construction equipment provided by the present application is provided with a first connecting unit and a second connecting unit on the first front shield shell, and a third connecting unit and a fourth connecting unit on the second front shield shell, so as to be detachably connected with the first mounting unit of the first connecting shell or the second mounting unit of the second connecting shell, thereby realizing flexible combination and configuration according to straight-line points or corner-type points. A straight-line mounting end is formed by the first connecting shell, the first front shield shell and the second front shield shell to install a straight-line combined pipe, and the straight-line point is pushed in, and a corner-type mounting end is formed by the second connecting shell, the first front shield shell and the second front shield shell to install a corner-type combined pipe, and the corner-type point is pushed in, and the first excavation host and the second excavation host are started. A single jacking can form multiple pipe curtain channels, thereby improving construction efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and specifically to a combined pipe-roof construction device and a construction method. Background Art

[0002] With the acceleration of urbanization, large underground structures are increasingly being constructed beneath urban roads and important buildings. To ensure that underground construction does not disrupt normal traffic and does not affect the normal use and structural safety of landmark buildings, advanced underground support is necessary. Currently, most tunnel construction projects use pipe roofs as an auxiliary support method for advanced tunnel construction.

[0003] In the prior art, when using pipe curtain construction equipment to construct a tunnel pipe curtain, the pipe curtain construction equipment is first placed at the starting position of the pipe curtain construction, and then the power system inside the pipe curtain construction equipment drives the pipe sections one by one into the soil structure to complete the construction of the pipe curtain structure.

[0004] However, existing pipe curtain construction equipment can only push in a single pipe segment at a time to form a single pipe curtain channel, resulting in low construction efficiency. Summary of the Invention

[0005] The present application provides a combined pipe curtain construction device and a construction method, which are used to solve the problem that the current pipe curtain construction equipment can only push in a single pipe segment at a time to form a single pipe curtain channel, resulting in low construction efficiency.

[0006] In order to achieve the above objectives, the technical solutions of this application are as follows:

[0007] The present application provides a combined pipe curtain construction equipment, including a connecting shell assembly, a first tunneling main machine and a second tunneling main machine, the first tunneling main machine and the second tunneling main machine respectively having a first front shield shell and a second front shield shell, the first front shield shell including a first connecting unit and a second connecting unit, the second front shield shell including a third connecting unit and a fourth connecting unit; the connecting shell assembly includes a first connecting shell and a second connecting shell, the first connecting shell including at least two first mounting units, the first mounting unit is used to be detachably connected to the first connecting unit and the third connecting unit so that the first connecting shell, the first front shield shell and the second front shield shell form a straight mounting end, the straight mounting end is used to install a straight combination pipe to jack a straight point; the second connecting shell includes at least two second mounting units, the second mounting unit is used to be detachably connected to the second connecting unit and the fourth connecting unit so that the second connecting shell, the first front shield shell and the second front shield shell form a corner mounting end, the corner mounting end is used to install a corner combination pipe to jack a corner point.

[0008] In one possible implementation, the combined pipe curtain construction equipment provided by the present application is provided with a first connection unit, a second connection unit, a third connection unit and a fourth connection unit, each of which is provided with a plurality of connection holes, and the connection holes are arranged axially and circumferentially at intervals along the first front shield shell and the second front shield shell; the first mounting unit and the second mounting unit are provided with a plurality of mounting holes, and the mounting holes are arranged axially and circumferentially at intervals along the first connection shell and the second connection shell, and the mounting holes and the connection holes are connected by connecting parts.

[0009] In one possible implementation, the combined pipe curtain construction equipment provided in the present application further includes a transition shell, which is detachably connected to the end of the first connecting shell away from the straight installation end or the end of the second connecting shell away from the corner installation end, and the transition shell is used to install the pilot pipe.

[0010] In a possible implementation, in the combined pipe-roof construction equipment provided in the present application, a cutter disc and a driving member are provided in both the first front shield shell and the second front shield shell, and the driving member is used to drive the cutter disc to rotate.

[0011] In one possible implementation, the combined pipe curtain construction equipment provided by the present application, the first tunneling main machine and the second tunneling main machine are both provided with a crushing cone, the crushing cone has a first connecting end, the first front shield shell and the second front shield shell both have multiple second connecting ends, and one of the first connecting ends can be detachably connected to the second connecting end so that the crushing cone is located at the lower part of the first tunneling main machine and the second tunneling main machine.

[0012] In one possible implementation, the combined pipe curtain construction equipment provided by the present application is further provided with a front shield partition inside the first front shield shell and the second front shield shell, the crushing cone has multiple slag inlets, and a slag inlet cavity is provided between the crushing cone and the front shield partition, and the slag inlet is connected to the slag inlet cavity so that the stone slag crushed by the crushing cone enters the slag inlet cavity through the slag inlet.

[0013] In one possible implementation, the combined pipe-roof construction equipment provided in the present application has a front shield partition provided with a plurality of mud pipe openings, and plugs are detachably installed on the mud pipe openings.

[0014] In one possible implementation, the combined pipe curtain construction equipment provided by the present application is further provided with at least one mud pipe in the first front shield shell and the second front shield shell respectively, and one of the mud pipes is detachably connected to the mud pipe mouth so that the mud can be discharged to the outside of the first tunneling main machine and the second tunneling main machine through the mud pipe.

[0015] In one possible implementation, in the combined pipe-roof construction equipment provided in the present application, one of the slag inlet chambers is connected to a mud pipe port so that the slag is discharged through the mud pipe to the outside of the first tunneling main machine and the second tunneling main machine.

[0016] The present application also provides a construction method, using the above-mentioned combined pipe curtain construction equipment, the construction method comprising the following steps:

[0017] Carry out construction at the point to be excavated to form a pilot hole;

[0018] According to the linear point position or the corner point position, the first mounting unit on the first connecting shell is respectively connected to the first connecting unit on the first front shield shell and the third connecting unit on the second front shield shell, or the second mounting unit on the second connecting shell is respectively connected to the second connecting unit on the first front shield shell and the fourth connecting unit on the second front shield shell;

[0019] Connect the linear combination pipe to the linear mounting end, and use the guide hole to guide the excavation of the first and second excavation main machines, so as to push the linear combination pipe into the linear point;

[0020] Alternatively, the corner type combination pipe is connected to the corner type installation end, and the guide hole is used to provide guidance for the excavation of the first excavation main machine and the second excavation main machine, so as to push the corner type combination pipe into the corner type point.

[0021] The combined pipe curtain construction equipment and construction method provided by the present application are characterized by providing a first connecting unit and a second connecting unit on the first front shield shell, and providing a third connecting unit and a fourth connecting unit on the second front shield shell, so as to be detachably connected to the first mounting unit of the first connecting shell or the second mounting unit of the second connecting shell, thereby realizing flexible combination and configuration according to straight-line points or corner-type points. The first connecting shell, the first front shield shell, and the second front shield shell form a straight-line mounting end to install a straight-line combined pipe, and push the straight-line point forward, and the second connecting shell, the first front shield shell, and the second front shield shell form a corner-type mounting end to install a corner-type combined pipe, and push the corner-type point forward, and start the first excavation main machine and the second excavation main machine. A single push can form multiple pipe curtain channels, effectively improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 Schematic diagram of the structure of the combined pipe roof construction equipment provided in the embodiment of this application Figure 1 ;

[0024] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0025] Figure 3 A schematic diagram of the connection between the first tunneling main unit, the second tunneling main unit, and the first connecting housing provided in an embodiment of the present application;

[0026] Figure 4 Schematic diagram of the structure of the combined pipe roof construction equipment provided in the embodiment of this application Figure 2 ;

[0027] Figure 5 for Figure 4 A partial enlarged view of point B in the middle;

[0028] Figure 6 A schematic diagram of the connection between the first tunneling main unit, the second tunneling main unit, and the second connecting shell provided in an embodiment of the present application;

[0029] Figure 7 A schematic cross-sectional view of a linear combination tube provided in an embodiment of the present application;

[0030] Figure 8 A schematic cross-sectional view of a corner-type combined tube provided in an embodiment of the present application;

[0031] Figure 9 A schematic structural diagram of a crushing cone on a first tunneling main machine provided in an embodiment of the present application;

[0032] Figure 10 A schematic diagram of the structure of a crushing cone on a second tunneling host provided in an embodiment of the present application;

[0033] Figure 11 A schematic diagram of the arrangement of straight-line points and corner points provided in an embodiment of the present application;

[0034] Figure 12 A flowchart of the construction method provided in an embodiment of the present application.

[0035] Description of reference numerals:

[0036] 100: First tunneling host;

[0037] 110: first front shield housing; 111: first connecting unit; 112: second connecting unit;

[0038] 200: Second tunneling host;

[0039] 210: second front shield shell; 211: third connecting unit; 212: fourth connecting unit;

[0040] 310: first connecting housing; 311: first mounting unit;

[0041] 320: second connecting housing; 321: second mounting unit;

[0042] 330: mounting hole;

[0043] 410: Straight type combined pipe; 420: Corner type combined pipe; 430: Pilot pipe;

[0044] 510: straight line point; 520: corner point;

[0045] 610: connection hole; 620: cutterhead; 630: drive element; 640: crushing cone; 641: slag inlet; 650: front shield partition; 651: mud pipe opening; 660: slag inlet chamber; 670: mud pipe;

[0046] 700: Transition shell.

[0047] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of this application more clear, the technical solutions in the embodiments of this application will be described in more detail below in conjunction with the drawings in the preferred embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0049] It should be noted that in the description of the embodiments of the present application, terms such as "upper", "lower", "inside", and "outside" indicating orientation or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the embodiments of the present application.

[0050] In addition, it should be noted that the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0051] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," and "fixed" should be interpreted broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0052] With the acceleration of urbanization, large underground structures are increasingly being constructed beneath urban roads and important buildings. To ensure that underground construction does not disrupt normal traffic and does not affect the normal use and structural safety of landmark buildings, advanced underground support is necessary. Currently, most tunnel construction projects use pipe roofs as an auxiliary support method for advanced tunnel construction.

[0053] Conventional technology uses pipe-roof construction equipment to construct tunnels. The equipment is first positioned at the starting point. A power system within the equipment then drives pipe segments one by one into the soil structure to complete the construction of the pipe-roof structure. However, existing pipe-roof construction equipment can only advance a single pipe segment at a time, forming a single pipe-roof passageway, resulting in low construction efficiency.

[0054] In view of this, the combined pipe curtain construction equipment and construction method provided by the present application are provided with a first connection unit and a second connection unit on the first front shield shell, and a third connection unit and a fourth connection unit on the second front shield shell, so as to be detachably connected to the first installation unit of the first connection shell or the second installation unit of the second connection shell, thereby realizing flexible combination and configuration according to straight-line points or corner-type points. The first connection shell, the first front shield shell, and the second front shield shell form a straight-line mounting end to install the straight-line combined pipe, and push the straight-line point, and the second connection shell, the first front shield shell, and the second front shield shell form a corner-type mounting end to install the corner-type combined pipe, and push the corner-type point, and start the first excavation main machine and the second excavation main machine. A single push can form multiple pipe curtain channels, effectively improving construction efficiency.

[0055] The present application will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0056] Figure 1 Schematic diagram of the structure of the combined pipe roof construction equipment provided in the embodiment of this application Figure 1 ; Figure 2 for Figure 1 A partial enlarged view of point A in the middle; Figure 3 A schematic diagram of the connection between the first tunneling main unit, the second tunneling main unit, and the first connecting housing provided in an embodiment of the present application; Figure 4Schematic diagram of the structure of the combined pipe roof construction equipment provided in the embodiment of this application Figure 2 ; Figure 5 for Figure 4 A partial enlarged view of point B in the middle; Figure 6 A schematic diagram of the connection between the first tunneling main unit, the second tunneling main unit, and the second connecting shell provided in an embodiment of the present application;

[0057] Figure 7 A schematic cross-sectional view of a linear combination tube provided in an embodiment of the present application; Figure 8 A schematic cross-sectional view of a corner-type combined tube provided in an embodiment of the present application; Figure 11 This is a schematic diagram of the arrangement of straight-line points and corner points provided in an embodiment of the present application.

[0058] See also Figures 1 to 11 The present application provides a combined pipe-roof construction equipment, including a connecting shell assembly, a first tunneling host 100 and a second tunneling host 200, wherein the first tunneling host 100 and the second tunneling host 200 respectively have a first front shield shell 110 and a second front shield shell 210, the first front shield shell 110 includes a first connecting unit 111 and a second connecting unit 112, and the second front shield shell 210 includes a third connecting unit 211 and a fourth connecting unit 212; the connecting shell assembly includes a first connecting shell 310 and a second connecting shell 320, the first connecting shell 310 includes at least two first mounting units 311, and the first mounting unit 311 is used to connect with the first connecting unit 1 11 and the third connecting unit 211 are detachably connected so that the first connecting shell 310, the first front shield shell 110 and the second front shield shell 210 form a straight mounting end, and the straight mounting end is used to install the straight combination pipe 410 to push the straight point 510; the second connecting shell 320 includes at least two second mounting units 321, and the second mounting unit 321 is used to be detachably connected to the second connecting unit 112 and the fourth connecting unit 212, so that the second connecting shell 320, the first front shield shell 110 and the second front shield shell 210 form a corner mounting end, and the corner mounting end is used to install the corner combination pipe 420 to push the corner point 520.

[0059] It can be understood that the first front shield shell 110 is provided with a first connecting unit 111 and a second connecting unit 112, and the second front shield shell 210 is provided with a third connecting unit 211 and a fourth connecting unit 212, which are used to be detachably connected to the first mounting unit 311 or the second mounting unit 321, thereby realizing a fast and stable connection between the components and improving the assembly efficiency. At the same time, through the modular design of the connecting shell assembly, the first tunneling host 100 and the second tunneling host 200, the combined pipe curtain construction equipment provided in this application can be flexibly combined and configured according to engineering requirements, thereby improving adaptability and flexibility.

[0060] During the construction process, when it is necessary to construct a linear point 510, the first tunneling host 100 and the second tunneling host 200 are respectively installed on both sides of the first connecting shell 310, and then the linear combination pipe 410 is installed on the linear installation end formed by the first connecting shell 310, the first front shield shell 110 and the second front shield shell 210, and the first tunneling host 100 and the second tunneling host 200 are started. The linear combination pipe 410 is pushed into the linear point 510 under the drive of the first tunneling host 100 and the second tunneling host 200. When it is necessary to construct a linear point 510 at other positions, the first connecting shell 310, the first front shield shell 110 and the second front shield shell 210 are rotated and moved as a whole to adapt to the linear point 510, and there is no need to disassemble and reassemble the first tunneling host 100 and the second tunneling host 200 and the first connecting shell 310.

[0061] It can be understood that the first tunneling machine 100 and the second tunneling machine 200 are started at the same time to push the linear combination pipe 410 into the linear point 510, realizing the construction of multiple pipe curtain channels, replacing the traditional pipe curtain construction equipment that can only push a single pipe section at a time. This application effectively improves construction efficiency.

[0062] Similarly, when it is necessary to construct a corner point 520, the first tunneling host 100 and the second tunneling host 200 are respectively installed on both sides of the second connecting shell 320, and then the corner combination pipe 420 is installed on the straight installation end formed by the second connecting shell 320, the first front shield shell 110 and the second front shield shell 210, and the first tunneling host 100 and the second tunneling host 200 are started. The corner combination pipe 420 is pushed into the corner point 520 under the drive of the first tunneling host 100 and the second tunneling host 200. When it is necessary to construct a corner point 520 at other locations, the second connecting shell 320, the first front shield shell 110 and the second front shield shell 210 are rotated and moved as a whole to adapt to the corner point 520, without the need to disassemble and reassemble the first tunneling host 100 and the second tunneling host 200 and the second connecting shell 320. The first boring machine 100 and the second boring machine 200 are started simultaneously to push the corner type combined pipe 420 into the corner type point 520 to realize the construction of multiple pipe curtain channels.

[0063] See also Figures 1 to 5In the embodiment of the present application, the first connecting unit 111, the second connecting unit 112, the third connecting unit 211 and the fourth connecting unit 212 are each provided with a plurality of connecting holes 610, and the connecting holes 610 are arranged at intervals in the axial direction and circumferential direction along the first front shield shell 110 and the second front shield shell 210; the first mounting unit 311 and the second mounting unit 321 are each provided with a plurality of mounting holes 330, and the mounting holes 330 are arranged at intervals in the axial direction and circumferential direction along the first connecting shell 310 and the second connecting shell 320, and the mounting holes 330 and the connecting holes 610 are connected by connecting pieces.

[0064] In a specific implementation, by providing connection holes 610 on the first connection unit 111, the second connection unit 112, the third connection unit 211, and the fourth connection unit 212, and providing mounting holes 330 on the first mounting unit 311 and the second mounting unit 321, and then connecting them with connectors, a stable connection structure can be formed. This structure can effectively resist external stress and impact, ensuring structural stability and safety.

[0065] Among them, the connecting holes 610 are arranged at intervals along the axial and circumferential directions of the first front shield shell 110 and the second front shield shell 210, and the mounting holes 330 are arranged at intervals along the axial and circumferential directions of the first connecting shell 310 and the second connecting shell 320. With such a design, when the first tunneling host 100 and the second tunneling host 200 are connected to the first connecting shell 310 or the second connecting shell 320, the connection is more stable, avoiding the first tunneling host 100 and the second tunneling host 200 from shaking relative to the first connecting shell 310 or the second connecting shell 320 during use.

[0066] See also Figures 1 to 5 In an embodiment of the present application, a transition shell 700 is also included, which is detachably connected to the end of the first connecting shell 310 away from the straight installation end or the end of the second connecting shell 320 away from the corner installation end, and the transition shell 700 is used to install the guide tube 430.

[0067] In the present application, before jacking the linear combination pipe 410 or the corner combination pipe 420, it is necessary to first jack the pilot pipe 430 at the point to be excavated. Thus, the pilot pipe 430 forms a guide hole, providing guidance for subsequent excavation work. In order to achieve the guiding function of the pilot pipe 430, the present application also provides a transition shell 700, which is used to connect with the pilot pipe 430. The transition shell 700 is then connected to the first connecting shell 310 or the second connecting shell 320. Thus, the guide hole formed by the pilot pipe 430 provides guidance for the excavation of the first excavation main unit 100 and the second excavation main unit 200, so as to successfully complete the pipe curtain construction at the linear point 510 and the corner point 520.

[0068] Furthermore, in order to improve the connection stability of the transition housing 700, the transition housing 700 can be connected to the first connection housing 310 or the second connection housing 320 while also being connected to the first front shield housing 110 and the second front shield housing 210, thereby making the connection more stable.

[0069] See also Figure 1 and Figure 4 In the embodiment of the present application, a cutter disc 620 and a driving member 630 are provided in both the first front shield housing 110 and the second front shield housing 210 . The driving member 630 is used to drive the cutter disc 620 to rotate.

[0070] In some embodiments, the driving member 630 is a component used to drive the cutter head 620 to rotate, start the first tunneling host 100 and the second tunneling host 200, and the driving member 630 drives the tool on the cutter head 620 to perform cutting work, thereby realizing the tunneling function of the first tunneling host 100 and the second tunneling host 200.

[0071] Figure 9 A schematic structural diagram of a crushing cone on a first tunneling main machine provided in an embodiment of the present application; Figure 10 A schematic structural diagram of the crushing cone on the second tunneling host provided in an embodiment of the present application.

[0072] See also Figure 9 and Figure 10 In the embodiment of the present application, the first tunneling host 100 and the second tunneling host 200 are both provided with a crushing cone 640, and the crushing cone 640 has a first connecting end. The first front shield shell 110 and the second front shield shell 210 both have multiple second connecting ends. One of the first connecting ends can be detachably connected to the second connecting end so that the crushing cone 640 is located at the lower part of the first tunneling host 100 and the second tunneling host 200.

[0073] It is understood that the crushing cone 640 is a component designed to crush soil or rock. During use, the rock crushed by the cutter head 620 enters the first boring machine 100 and the second boring machine 200 and is crushed again by the crushing cone 640.

[0074] The first connection end of the crushing cone 640 is detachably connected to one of the second connection ends of the first front shield shell 110 and the second front shield shell 210. This design facilitates workers to quickly replace or adjust the position of the crushing cone 640 according to different construction requirements.

[0075] Specifically, during use, in order to ensure the normal use of the crushing cone 640 and the smooth slag discharge after the secondary crushing of the rock, the crushing cone 640 is always located at the lower part of the first tunneling host 100 and the second tunneling host 200. That is to say, when the first tunneling host 100 and the second tunneling host 200 rotate to adapt to different construction sites, the staff needs to adaptively adjust the position of the crushing cone 640 in time to ensure that the crushing cone 640 is located at the lower part of the first tunneling host 100 and the second tunneling host 200 at any construction site.

[0076] See also Figure 1 、 Figure 4 、 Figure 9 and Figure 10 In the embodiment of the present application, a front shield partition 650 is further provided in the first front shield shell 110 and the second front shield shell 210, the crushing cone 640 has a plurality of slag inlet ports 641, and a slag inlet cavity 660 is provided between the crushing cone 640 and the front shield partition 650. The slag inlet ports 641 are connected to the slag inlet cavity 660 so that the slag crushed by the crushing cone 640 enters the slag inlet cavity 660 through the slag inlet ports 641.

[0077] In specific implementation, a slag inlet 641 is provided on the crushing cone 640, and a slag inlet chamber 660 is formed between the crushing cone 640 and the front shield partition 650. When the crushing cone 640 performs secondary crushing on the rock crushed by the cutter head 620, the secondary crushed rock can enter the slag inlet chamber 660 through the slag inlet 641, ensuring the normal use of the front crushing cone 640.

[0078] It is understandable that the number and layout of the slag inlets 641 are given for illustrative purposes only and can be set according to actual needs, and this embodiment does not limit this.

[0079] See also Figure 1 and Figure 4 In the embodiment of the present application, a plurality of mud pipe openings 651 are provided on the front shield partition 650 , and plugs are detachably installed on the mud pipe openings 651 .

[0080] In some embodiments, in order to discharge the crushed soil and rocks to the outside of the first boring machine 100 and the second boring machine 200, a mud pipe port 651 is opened on the front shield partition 650 so that the crushed soil and rocks can be discharged to the outside through the mud pipe port 651.

[0081] It is understandable that the number and layout of the mud pipe openings 651 are only given for example, and can be set according to actual needs, and this embodiment does not limit this.

[0082] Specifically, when any of the mud pipe openings 651 is needed to discharge mud and gravel, the other mud pipe openings 651 can be blocked with plugs to prevent leakage and splashing of mud and gravel from the other mud pipe openings 651. In other words, during use, mud and gravel are typically discharged through the mud pipe openings 651 located at the bottom of the first and second tunneling machines 100, 200. When the first and second tunneling machines 100, 200 are rotated, the operator must promptly block the original mud pipe opening 651 with the plug and remove the plug from the lower mud pipe opening 651. This design offers excellent adaptability and flexibility.

[0083] See also Figure 1 、 Figure 3 、 Figure 4 and Figure 6 In the embodiment of the present application, at least one mud pipe 670 is respectively provided in the first front shield shell 110 and the second front shield shell 210. One of the mud pipes 670 is detachably connected to the mud pipe port 651 so that the mud can be discharged to the outside of the first tunneling host 100 and the second tunneling host 200 through the mud pipe 670.

[0084] In the present application, in order to guide the smooth discharge of mud and gravel, mud pipes 670 are respectively provided in the first front shield shell 110 and the second front shield shell 210. During use, the mud pipes 670 can be set to multiple, that is, mud pipes 670 are installed on multiple mud pipe openings 651, or the first front shield shell 110 and the second front shield shell 210 can be respectively provided with a mud pipe 670, and then the mud pipe 670 is installed on the mud pipe opening 651 to be discharged to guide the mud and gravel to be discharged smoothly to the outside of the first tunneling host 100 and the second tunneling host 200. When the first tunneling host 100 and the second tunneling host 200 rotate to adapt to the construction point to be constructed, the staff needs to install the mud pipe 670 on the new mud pipe opening 651 to be discharged to ensure the smooth discharge of mud and gravel.

[0085] See also Figure 1 and Figure 4 In the embodiment of the present application, the slag inlet chamber 660 is selectively connected to the mud pipe port 651 so that the slag is discharged to the outside of the first tunneling machine 100 and the second tunneling machine 200 through the mud pipe 670.

[0086] In specific implementation, in order to discharge the slag in the slag inlet chamber 660, the slag inlet chamber 660 is connected to the mud pipe mouth 651 for discharging the crushed stone, a mud pipe 670 is installed on the mud pipe mouth 651, and the plug on the mud pipe mouth 651 is removed. The slag in the slag inlet chamber 660 can be smoothly discharged to the outside of the first tunneling main machine 100 and the second tunneling main machine 200 through the mud pipe 670.

[0087] Figure 12 A flowchart of the construction method provided in an embodiment of the present application.

[0088] See also Figure 11 and Figure 12 Based on the above embodiment, the present application further provides a construction method, which uses the above combined pipe curtain construction equipment. The construction method includes the following steps:

[0089] S101. Construction is carried out at the point to be excavated to form a guide hole.

[0090] In specific implementation, the location of the excavation point is first determined, then the excavation equipment is arranged at the location, and the guide tube 430 is installed, and the excavation equipment is started to carry out excavation work. The guide tube 430 is pushed into the soil layer under the drive of the excavation equipment, forming a guide hole on its path.

[0091] S102. Depending on the linear point 510 or the corner point 520, the first mounting unit 311 on the first connecting housing 310 is selected to be connected to the first connecting unit 111 on the first front shield housing 110 and the third connecting unit 211 on the second front shield housing 210, or the second mounting unit 321 on the second connecting housing 320 is selected to be connected to the second connecting unit 112 on the first front shield housing 110 and the fourth connecting unit 212 on the second front shield housing 210, respectively.

[0092] It is understood that when construction is required at a linear point 510, the first connecting housing 310 is used, and the first mounting unit 311 is connected to the first connecting unit 111 and the third connecting unit 211, respectively, so that the first connecting housing 310, the first front shield housing 110, and the second front shield housing 210 form a linear mounting end. Similarly, when construction is required at a corner point 520, the second connecting housing 320 is used, and the second mounting unit 321 is connected to the second connecting unit 112 and the fourth connecting unit 212, respectively, so that the second connecting housing 320, the first front shield housing 110, and the second front shield housing 210 form a corner mounting end.

[0093] S103, connecting the linear combination pipe 410 to the linear mounting end, using the guide hole to provide guidance for the excavation of the first excavation main unit 100 and the second excavation main unit 200, so as to push the linear combination pipe 410 into the linear point 510;

[0094] Alternatively, the corner combination pipe 420 is connected to the corner installation end, and the guide hole is used to provide guidance for the excavation of the first excavation main machine 100 and the second excavation main machine 200 to push the corner combination pipe 420 into the corner point 520.

[0095] In the present application, when constructing the linear point 510, the first boring machine 100 and the second boring machine 200 are connected to the first connecting shell 310 at the starting position and the position and angle are adjusted, then the crushing cone 640 and the mud pipe 670 are installed, and then the transition shell 700 is connected to the guide pipe 430, and then the linear combination pipe 410 is installed on the linear mounting end, and the first boring machine 100 and the second boring machine 200 are started, and the guide pipe 430 is used to provide guidance for the excavation of the first boring machine 100 and the second boring machine 200, so as to realize the pipe curtain construction of the linear point 510. After the construction of the linear point 510 is completed, the combined pipe curtain construction equipment is received at the end position, and the combined pipe curtain construction equipment is moved to the next linear point 510. The rotation angle of the combined pipe curtain construction equipment is adjusted, and then the positions of the crushing cone 640 and the mud pipe 670 are adaptively adjusted. The first tunneling host 100 and the second tunneling host 200 are started to construct the linear point 510 until the construction of all linear points 510 is completed.

[0096] Similarly, when constructing the corner point 520, the first boring machine 100, the second boring machine 200 and the second connecting shell 320 are connected at the starting position and the position and angle are adjusted. Then the crushing cone 640 and the mud pipe 670 are installed, and the transition shell 700 is connected to the pilot pipe 430. Then, the corner combination pipe 420 is installed on the corner installation end, the first boring machine 100 and the second boring machine 200 are started, and the pilot pipe 430 is used to provide guidance for the excavation of the first boring machine 100 and the second boring machine 200, so as to realize the pipe curtain construction of the corner point 520. After the construction of the corner point 520 is completed, the combined pipe curtain construction equipment is received at the end position, and the combined pipe curtain construction equipment is moved to the next corner point 520. The rotation angle of the combined pipe curtain construction equipment is adjusted, and then the positions of the crushing cone 640 and the mud pipe 670 are adaptively adjusted. The first tunneling host 100 and the second tunneling host 200 are started to construct the corner point 520 until the construction of all corner points 520 is completed.

[0097] In summary, the combined pipe curtain construction equipment and construction method provided in the present application are configured by providing a first connection unit 111 and a second connection unit 112 on the first front shield shell 110, and providing a third connection unit 211 and a fourth connection unit 212 on the second front shield shell 210, so as to be detachably connected to the first installation unit 311 of the first connection shell 310 or the second installation unit 321 of the second connection shell 320, thereby realizing flexible combination and configuration according to straight-line points 510 or corner points 520. A straight installation end is formed by the first connecting shell 310, the first front shield shell 110 and the second front shield shell 210 to install the straight combination pipe 410, and the straight point 510 is pushed in. The second connecting shell 320, the first front shield shell 110 and the second front shield shell 210 form a corner installation end to install the corner combination pipe 420, and the corner point 520 is pushed in. The first tunneling host 100 and the second tunneling host 200 are started. A single jacking can form multiple pipe curtain channels, effectively improving construction efficiency.

[0098] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements 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 application.

Claims

1. A combined pipe-roof construction device, characterized in that: The invention comprises a connecting shell assembly, a first tunneling main machine (100) and a second tunneling main machine (200), wherein the first tunneling main machine (100) and the second tunneling main machine (200) respectively have a first front shield shell (110) and a second front shield shell (210), wherein the first front shield shell (110) comprises a first connecting unit (111) and a second connecting unit (112), and the second front shield shell (210) comprises a third connecting unit (211) and a fourth connecting unit (212); The connecting shell assembly comprises a first connecting shell (310) and a second connecting shell (320), wherein the first connecting shell (310) comprises at least two first mounting units (311), and the first mounting units (311) are used for detachably connecting with the first connecting unit (111) and the third connecting unit (211), so that the first connecting shell (310), the first front shield shell (110) and the second front shield shell (210) form a linear mounting end, and the linear mounting end is used for mounting a linear combination pipe (410) to push into a linear point (510); The second connection shell (320) includes at least two second mounting units (321), and the second mounting units (321) are used to be detachably connected to the second connection unit (112) and the fourth connection unit (212), so that the second connection shell (320), the first front shield shell (110) and the second front shield shell (210) form a corner-type mounting end, and the corner-type mounting end is used to install a corner-type combination pipe (420) to push into the corner-type point (520).

2. The combined pipe-roof construction equipment according to claim 1, characterized in that: The first connecting unit (111), the second connecting unit (112), the third connecting unit (211) and the fourth connecting unit (212) are all provided with a plurality of connecting holes (610), and the connecting holes (610) are arranged at intervals along the axial direction and the circumferential direction of the first front shield shell (110) and the second front shield shell (210); The first mounting unit (311) and the second mounting unit (321) are both provided with a plurality of mounting holes (330), the mounting holes (330) being spaced apart axially and circumferentially along the first connecting shell (310) and the second connecting shell (320), and the mounting holes (330) and the connecting holes (610) being connected via a connecting piece.

3. The combined pipe-roof construction equipment according to claim 1 or 2, characterized in that: It also includes a transition shell (700), which is detachably connected to an end of the first connecting shell (310) away from the straight installation end or an end of the second connecting shell (320) away from the corner installation end, and the transition shell (700) is used to install the guide tube (430).

4. The combined pipe-roof construction equipment according to claim 3, characterized in that: A cutter disc (620) and a driving member (630) are both provided in the first front shield shell (110) and the second front shield shell (210), and the driving member (630) is used to drive the cutter disc (620) to rotate.

5. The combined pipe-roof construction equipment according to claim 4, characterized in that: The first tunneling main machine (100) and the second tunneling main machine (200) are both provided with a crushing cone (640), the crushing cone (640) having a first connection end, the first front shield shell (110) and the second front shield shell (210) each having a plurality of second connection ends, and the first connection end is selectively connected to the second connection end in a detachable manner so that the crushing cone (640) is located at the lower part of the first tunneling main machine (100) and the second tunneling main machine (200).

6. The combined pipe-roof construction equipment according to claim 5, characterized in that: A front shield partition (650) is further provided in the first front shield shell (110) and the second front shield shell (210); the crushing cone (640) has a plurality of slag inlet ports (641); a slag inlet cavity (660) is provided between the crushing cone (640) and the front shield partition (650); the slag inlet ports (641) are communicated with the slag inlet cavity (660), so that the slag crushed by the crushing cone (640) enters the slag inlet cavity (660) through the slag inlet ports (641).

7. The combined pipe-roof construction equipment according to claim 6, characterized in that: The front shield partition (650) is provided with a plurality of mud pipe openings (651), and plugs are detachably mounted on the mud pipe openings (651).

8. The combined pipe-roof construction equipment according to claim 7, characterized in that: At least one mud pipe (670) is further provided in each of the first front shield shell (110) and the second front shield shell (210). One of the mud pipes (670) is detachably connected to the mud pipe opening (651) so that mud can be discharged to the outside of the first tunneling main machine (100) and the second tunneling main machine (200) through the mud pipe (670).

9. The combined pipe-roof construction equipment according to claim 8, characterized in that: The slag inlet chamber (660) is selectively connected to the mud pipe port (651) so that the slag is discharged to the outside of the first boring machine (100) and the second boring machine (200) through the mud pipe (670).

10. A construction method, characterized in that: Using the combined pipe-roof construction equipment according to any one of claims 1 to 9, the construction method comprises the following steps: Carry out construction at the point to be excavated to form a pilot hole; According to the linear point position (510) or the corner point position (520), the first mounting unit (311) on the first connecting shell (310) is selected to be connected to the first connecting unit (111) on the first front shield shell (110) and the third connecting unit (211) on the second front shield shell (210) respectively, or the second mounting unit (321) on the second connecting shell (320) is selected to be connected to the second connecting unit (112) on the first front shield shell (110) and the fourth connecting unit (212) on the second front shield shell (210) respectively; Connecting the linear combination pipe (410) to the linear mounting end, using the guide hole to provide guidance for the excavation of the first excavation main machine (100) and the second excavation main machine (200), so as to push the linear combination pipe (410) into the linear point (510); Alternatively, the corner type combined pipe (420) is connected to the corner type mounting end, and the guide hole is used to provide guidance for the excavation of the first excavation main machine (100) and the second excavation main machine (200), so as to push the corner type combined pipe (420) into the corner type point (520).

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