Combined pipe roofing machine and pipe roofing construction method

Abstract

The invention relates to the technical field of tunnel construction, in particular to a combined pipe roofing machine and a pipe roofing construction method. The invention provides a combined pipe roofing machine which comprises a combined tail shield structure and at least two tunneling main machines, the tunneling main machines are provided with connecting shield bodies, and the connecting shield bodies are provided with at least two first connecting parts; the combined tail shield structure comprises a linear combined tail shield and a corner combined tail shield which are respectively used for linear point location and corner point location pipe roof construction; the linear type combined tail shield and the corner type combined tail shield are provided with at least two second connecting parts and at least two third connecting parts respectively, and the second connecting parts and the third connecting parts are detachably connected with the first connecting parts respectively so that the linear type combined tail shield or the corner type combined tail shield can be connected with the tunneling main machine. According to the combined pipe roofing machine, meshing construction of a plurality of pipe roofing channels can be achieved through single-time jacking, meanwhile, the problem that mutual connection and water isolation between single pipe roofing channels are difficult is solved, and construction safety and construction efficiency are improved.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction, and in particular to a combined pipe curtain machine and a pipe curtain construction method. Background Art

[0002] With the acceleration of urbanization, more and more large underground structures are being built under urban roads or important buildings. In order to ensure that the construction process of underground projects does not affect normal traffic and the normal use and structural safety of landmark buildings, it is necessary to ensure that the ground surface does not settle during the construction of underground structures. The pipe curtain method, as an auxiliary construction method that can form an advanced pre-support system, can effectively solve the above problems.

[0003] In the prior art, in order to realize the rapid and efficient construction of pipe curtains, pipe curtain machines have come into being. During the construction process, the pipe curtain machine is usually placed at the starting point of the pipe curtain, and drives the pipe sections one by one into the soil structure through its internal power system to form an underground pipe curtain structure.

[0004] However, in the current pipe curtain construction, the pipe curtain machine can only excavate a single pipe curtain channel at a time, and the interconnection and waterproofing between single pipe curtain channels is an engineering difficulty, which restricts the safety, construction cost and construction efficiency of the pipe curtain method. Summary of the invention

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

[0006] In order to achieve the above purpose, the technical solution of this application is as follows:

[0007] A combined pipe curtain machine provided in the present application comprises a combined tail shield structure and at least two tunneling hosts, the tunneling hosts having a connecting shield body, on which at least two first connecting parts are arranged; the combined tail shield structure comprises a straight-line combined tail shield and a corner-type combined tail shield, the straight-line combined tail shield and the corner-type combined tail shield are respectively used for straight-line point-type and corner-type point-type pipe curtain construction; the straight-line combined tail shield and the corner-type combined tail shield are respectively provided with at least two second connecting parts and at least two third connecting parts, the second connecting parts and the third connecting parts are respectively detachably connected to the first connecting parts, so as to connect the straight-line combined tail shield or the corner-type combined tail shield to the tunneling host.

[0008] In one possible implementation, the combined pipe curtain machine provided by the present application, the linear combined tail shield includes a first circular steel structure and at least one first connecting body fixedly connected to the first circular steel structure, the end of the first circular steel structure away from the first connecting body is used to install the linear combined pipe section; the end of the first circular steel structure close to the first connecting body is provided with at least two first connecting ends, and the second connecting parts are evenly arranged on the first connecting ends, so that the first connecting ends are detachably connected to the excavation main machine in a one-to-one correspondence.

[0009] In one possible implementation, the combined pipe curtain machine provided by the present application, the corner-type combined tail shield includes a second circular steel structure and at least one second connecting body fixedly connected to the second circular steel structure, and the end of the second circular steel structure away from the second connecting body is used to install the corner-type combined pipe section; the end of the second circular steel structure close to the second connecting body is provided with at least two second connecting ends, and the third connecting part is evenly arranged on the second connecting end, so that the second connecting end can be detachably connected to the excavation main machine in a one-to-one correspondence.

[0010] In a possible implementation, in the combined pipe curtain machine provided in the present application, both the first connector and the second connector are provided with mounting parts, and the mounting parts are used to install the pilot pipe.

[0011] In a possible implementation, the combined pipe curtain machine provided in the present application has a spacing between a side of the mounting portion facing the tunneling main machine and the tunneling main machine so that the tunneling main machine can adjust its posture.

[0012] In a possible implementation, in the combined pipe curtain machine provided in the present application, an openable and closable operating cabin is provided in both the first connecting body and the second connecting body.

[0013] In a possible implementation, the combined pipe curtain machine provided in the present application, the main boring machine also includes a front shield and a driving member and a cutter disc installed on the front shield, and the driving member is used to drive the cutter disc to rotate.

[0014] In one possible implementation, the combined pipe curtain machine provided in the present application, the excavation main machine also includes a plurality of hinged components, one end of the hinged component is hinged to the end of the front shield facing away from the cutter disc, and the other end of the hinged component is fixedly connected to the end of the connecting shield body facing away from the combined tail shield structure, and the hinged component is used for correcting the deviation of the excavation main machine.

[0015] In one possible implementation, the combined pipe curtain machine provided by the present application, the articulation assembly includes an articulation cylinder and an articulation ring articulated to the articulation cylinder, the end of the articulation cylinder away from the connecting shield body is articulated to the front shield, and the articulation cylinder is used to drive the front shield to adjust its posture; the end of the articulation ring away from the front shield is fixedly connected to the connecting shield body, and the articulation ring is used to adapt to changes in the posture of the front shield.

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

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

[0018] According to the straight point selection, use the straight line combination tail shield, and according to the corner point selection, use the corner combination tail shield;

[0019] Adjust the angle of the straight type combined tail shield or the corner type combined tail shield;

[0020] Connect the first connection part of the tunneling main machine to the second connection part of the linear combined tail shield, and use the guide hole to provide guidance for the tunneling of the tunneling main machine, so as to perform pipe curtain construction on the linear point;

[0021] Alternatively, the first connection part of the tunneling main machine is connected to the third connection part of the corner-type combined tail shield, and the guide hole is used to provide guidance for the tunneling of the tunneling main machine, so as to carry out pipe curtain construction at the corner point.

[0022] The combined pipe curtain machine and pipe curtain construction method provided in the present application realize the excavation of the stratum by setting up a tunneling main machine. The combined tail shield structure includes a straight-line combined tail shield and a corner-type combined tail shield, which are used for the construction of straight-line point-type and corner-type point-type pipe curtains, respectively. The tunneling main machine has a connecting shield body, and a first connecting part is provided on the connecting shield body. The straight-line combined tail shield and the corner-type combined tail shield are respectively provided with a second connecting part and a third connecting part, and the second connecting part and the third connecting part are respectively detachably connected to the first connecting part. At the same time, the excavation angle of the straight-line combined tail shield or the corner-type combined tail shield can be adjusted, and the tunneling main machine can be connected to the straight-line combined tail shield or the corner-type combined tail shield without rotation. Therefore, the straight-line combined tail shield and the corner-type combined tail shield can realize the construction of multiple pipe curtain channels with a single jacking under the excavation of the tunneling main machine, thereby improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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 paying any creative work.

[0024] Figure 1 The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 1 ;

[0025] Figure 2 The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 2 ;

[0026] Figure 3 The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 3 ;

[0027] Figure 4 A schematic diagram of the structure of a linear combined tail shield in a combined pipe curtain machine provided in an embodiment of the present application;

[0028] Figure 5 A schematic cross-sectional view of a first round steel structure in a combined pipe curtain machine provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the structure of a corner-type combined tail shield in a combined pipe curtain machine provided in an embodiment of the present application;

[0030] Figure 7 A schematic cross-sectional view of a second round steel structure in a combined pipe curtain machine provided in an embodiment of the present application;

[0031] Figure 8 A schematic cross-sectional view of a linear combined pipe section provided in an embodiment of the present application;

[0032] Fig. 9 A schematic cross-sectional view of a corner type combined pipe joint provided in an embodiment of the present application;

[0033] Fig.10 for Figure 1 Schematic diagram of the structure of the main engine of the tunneling machine;

[0034] Fig.11 A schematic diagram of the arrangement of straight-line points and corner points provided in an embodiment of the present application;

[0035] Fig.12 A flow chart of the pipe curtain construction method provided in an embodiment of the present application.

[0036] Description of reference numerals:

[0037] 100-combined tail shield structure;

[0038] 110-straight combined tail shield; 111-second connecting portion; 112-first connecting body; 113-first round steel structure; 1131-first connecting end;

[0039] 120-corner type combined tail shield; 121-third connecting part; 122-second connecting body; 123-second round steel structure; 1231-second connecting end;

[0040] 130-installation part;

[0041] 140-operation cabin;

[0042] 200- Excavation host;

[0043] 210-connecting shield body; 211-first connecting part;

[0044] 220-front shield;

[0045] 230-driving member;

[0046] 240-knife plate;

[0047] 250-articulation assembly; 251-articulation cylinder; 252-articulation ring;

[0048] 300-Linear point;

[0049] 400-corner point;

[0050] 500-straight type combined pipe joint;

[0051] 600-corner type combined pipe joint;

[0052] 700-pioneer catheter.

[0053] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution in the embodiment of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0055] 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, and do not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the embodiments of the present application.

[0056] 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 technical features indicated. 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.

[0057] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0058] With the acceleration of urbanization, more and more large underground structures are being built under urban roads or important buildings. In order to ensure that the construction process of underground projects does not affect normal traffic and the normal use and structural safety of landmark buildings, it is necessary to ensure that the ground surface does not settle during the construction of underground structures. The pipe curtain method, as an auxiliary construction method that can form an advanced pre-support system, can effectively solve the above problems.

[0059] In the existing technology, pipe curtain construction generally uses a small-diameter pipe curtain machine to construct a pipe curtain group to form a horizontal steel pipe curtain maintenance, which has the advantages of small excavation section and flexible section combination.

[0060] However, in the current pipe curtain construction, the pipe curtain machine can only excavate a single pipe curtain channel at a time, and the water isolation between the single pipe curtain channels is an engineering difficulty, especially for the pipe curtain construction in water-rich formations, which greatly restricts the safety, construction cost and construction efficiency of the pipe curtain method.

[0061] In view of this, the combined pipe curtain machine and the pipe curtain construction method provided in the present application realize the excavation of the stratum by setting up a tunneling main machine. The combined tail shield structure includes a straight-line combined tail shield and a corner-type combined tail shield, which are used for the construction of straight-line point-type and corner-type point-type pipe curtains, respectively. The tunneling main machine has a connecting shield body, and a first connecting part is provided on the connecting shield body. The straight-line combined tail shield and the corner-type combined tail shield are respectively provided with a second connecting part and a third connecting part, and the second connecting part and the third connecting part are respectively detachably connected to the first connecting part. At the same time, the excavation angle of the straight-line combined tail shield or the corner-type combined tail shield can be adjusted, and the tunneling main machine can be connected to the straight-line combined tail shield or the corner-type combined tail shield without rotation. As a result, the straight-line combined tail shield and the corner-type combined tail shield can realize the interlocking construction of multiple pipe curtain channels in a single jacking under the excavation of the tunneling main machine, thereby improving the construction efficiency.

[0062] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.

[0063] Figure 1 The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 1 ; Figure 2The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 2 ; Figure 3 The structure diagram of the combined pipe curtain machine provided in the embodiment of the present application is as follows: Figure 3 ; Figure 4 A schematic diagram of the structure of a linear combined tail shield in a combined pipe curtain machine provided in an embodiment of the present application; Figure 5 A schematic cross-sectional view of a first round steel structure in a combined pipe curtain machine provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of a corner-type combined tail shield in a combined pipe curtain machine provided in an embodiment of the present application; Figure 7 A schematic cross-sectional view of a second round steel structure in a combined pipe curtain machine provided in an embodiment of the present application; Fig.11 A schematic diagram of the arrangement of straight-line points and corner points provided in an embodiment of the present application.

[0064] See also Figures 1 to 11 The present application provides a combined pipe curtain machine, comprising a combined tail shield structure 100 and at least two tunneling hosts 200, the tunneling hosts 200 having a connecting shield body 210, on which at least two first connecting parts 211 are arranged; the combined tail shield structure 100 comprises a straight-line combined tail shield 110 and a corner-type combined tail shield 120, the straight-line combined tail shield 110 and the corner-type combined tail shield 120 are respectively used for the straight-line point 300 and the corner-type point 400 pipe curtain construction; the straight-line combined tail shield 110 and the corner-type combined tail shield 120 are respectively provided with at least two second connecting parts 111 and at least two third connecting parts 121, the second connecting parts 111 and the third connecting parts 121 are respectively detachably connected to the first connecting part 211, so as to connect the straight-line combined tail shield 110 or the corner-type combined tail shield 120 to the tunneling host 200.

[0065] In specific implementation, the end of the linear combined tail shield 110 away from the excavation main machine 200 is generally linear, so as to adapt to the construction of the linear point 300. The end of the corner combined tail shield 120 away from the excavation main machine 200 is generally corner-shaped, so as to adapt to the construction of the corner point 400.

[0066] Understandably, see Figures 1 to 3 The number of the excavation hosts 200 can be set to be multiple, and excavation can be performed simultaneously to realize the construction of multiple pipe curtain channels, which is not limited in this embodiment.

[0067] In some embodiments, the tunneling host 200 has a connecting shield body 210, on which a first connecting portion 211 is provided, and the straight-type combined tail shield 110 and the corner-type combined tail shield 120 are respectively provided with a second connecting portion 111 and a third connecting portion 121, and the second connecting portion 111 and the third connecting portion 121 are respectively detachably connected to the first connecting portion 211. That is to say, during the construction process, when it is necessary to construct a straight point 300, the straight combination tail shield 110 is selected to be used, and the angle of the straight combination tail shield 110 is adjusted according to the construction requirements, and then the tunneling host 200 is installed on the straight combination tail shield 110 through the connection between the first connection part 211 and the second connection part 111. Similarly, when it is necessary to construct a corner point 400, the corner combination tail shield 120 is selected to be used, and the angle of the corner combination tail shield 120 is adjusted according to the construction requirements, and then the tunneling host 200 is installed on the corner combination tail shield 120 through the connection between the first connection part 211 and the second connection part 111. That is to say, the point arrangement of the second connection part 111 and the third connection part 121 can adapt to the connection with the tunneling host 200 when the straight combination tail shield 110 and the corner combination tail shield 120 are rotated to different positions and angles, thereby, the tunneling host 200 can be connected to the straight combination tail shield 110 or the corner combination tail shield without rotation. During the excavation of the excavation main machine 200, a single jacking can realize the construction of multiple pipe curtain channels, which effectively improves the construction efficiency.

[0068] Figure 8 A schematic cross-sectional view of a straight-line combined pipe section provided in an embodiment of the present application.

[0069] See also Figure 4 , Figure 5 and Figure 8 In the embodiment of the present application, the linear combined tail shield 110 includes a first round steel structure 113 and at least one first connecting body 112 fixedly connected to the first round steel structure 113, and the end of the first round steel structure 113 away from the first connecting body 112 is used to install the linear combined pipe section 500; the end of the first round steel structure 113 close to the first connecting body 112 is provided with at least two first connecting ends 1131, and the second connecting part 111 is evenly arranged on the first connecting end 1131, so that the first connecting end 1131 is detachably connected to the tunneling host 200 in a one-to-one correspondence.

[0070] In specific implementation, the end of the first round steel structure 113 away from the first connector 112 is used to install the linear combined pipe segment 500, and the shape of the end of the first round steel structure 113 away from the first connector 112 is generally linear to adapt to the construction of the linear point 300. The linear combined pipe segment 500 is a combined pipe segment that matches the first round steel structure 113. Therefore, during construction, through the excavation of the excavation host 200, the first round steel structure 113 drives the linear combined pipe segment 500 to push into the soil layer to form a linear combined pipe curtain channel.

[0071] It can be understood that a first connecting end 1131 is provided at one end of the first round steel structure 113 close to the first connecting body 112, and the second connecting parts 111 are evenly arranged on the first connecting end 1131, and the excavation main machine 200 is installed one-to-one with the first connecting end 1131 through the connection between the first connecting part 211 and the second connecting part 111.

[0072] The number and layout of the first connection terminals 1131 are given for exemplary purposes only and can be set according to actual needs, and are not limited in this embodiment.

[0073] Furthermore, the linear combined pipe segment 500 can be configured to be formed by three pipe segments interlocked, or five pipe segments or seven pipe segments interlocked. Correspondingly, the number of pipe segments that can be connected to the end of the first round steel structure 113 away from the first connector 112 can also be adjusted accordingly. The structure and layout of the linear combined pipe segment 500 are only given for illustrative purposes, and the specific structure can be set according to actual needs, and this embodiment is not limited here. Therefore, by using a linear combined pipe segment 500 formed by a plurality of pipe segments interlocked, a single jacking can be used to realize the construction of multiple pipe curtain channels under the excavation of the excavation main machine 200, which solves the problem of difficulty in water-proofing the interconnection between single pipe curtain channels in the prior art, and improves construction safety and efficiency.

[0074] Fig. 9 A schematic cross-sectional view of a corner-type combined pipe section provided in an embodiment of the present application.

[0075] See also Figure 6 , Figure 7 and Fig. 9 In the embodiment of the present application, the corner type combined tail shield 120 includes a second round steel structure 123 and at least one second connecting body 122 fixedly connected to the second round steel structure 123, and the end of the second round steel structure 123 away from the second connecting body 122 is used to install the corner type combined pipe section 600; the end of the second round steel structure 123 close to the second connecting body 122 is provided with at least two second connecting ends 1231, and the third connecting part 121 is evenly arranged on the second connecting end 1231, so that the second connecting end 1231 is detachably connected to the tunneling host 200 in a one-to-one correspondence.

[0076] In some embodiments, the shape of the end of the second round steel structure 123 away from the second connector 122 can be an overall corner shape to adapt to the construction of the corner point 400. The corner type combined pipe section 600 is a combined pipe section that matches the second round steel structure 123. Therefore, during construction, through the excavation of the excavation host 200, the second round steel structure 123 drives the corner type combined pipe section 600 to push into the soil layer to form a corner type combined pipe curtain channel.

[0077] Among them, a second connecting end 1231 is provided at one end of the second circular steel structure 123 close to the second connecting body 122, and the third connecting parts 121 are evenly arranged on the second connecting end 1231. Through the connection between the first connecting part 211 and the third connecting part 121, the excavation host 200 and the second connecting end 1231 are installed one by one.

[0078] In the present application, the number and layout of the second connection terminals 1231 are given for exemplary purposes only and can be set according to actual needs, and are not limited in this embodiment.

[0079] Furthermore, the corner type combined pipe segment 600 can be configured to be formed by three pipe segments interlocked, or it can be formed by five pipe segments or seven pipe segments interlocked. Correspondingly, the number of pipe segments that can be connected to the end of the second round steel structure 123 away from the second connector 122 can also be adjusted accordingly. The structure and layout of the corner type combined pipe segment 600 are only given for example, and the specific structure can be set according to actual needs, and this embodiment is not limited here. Therefore, by using the corner type combined pipe segment 600 formed by the interlocking of multiple pipe segments, the construction of multiple pipe curtain channels can be achieved by a single jacking under the excavation of the excavation main machine 200, which solves the problem of difficulty in water-proofing the interconnection between single pipe curtain channels in the prior art, and improves construction safety and efficiency.

[0080] See also Figure 1 , Figure 4 and Figure 6 In the embodiment of the present application, both the first connecting body 112 and the second connecting body 122 are provided with a mounting portion 130 , and the mounting portion 130 is used to install the pilot tube 700 .

[0081] In the present application, in order to realize the connection between the first connector 112 and the second connector 122 and the guide tube 700 respectively, the first connector 112 and the second connector 122 both have an installation portion 130, and the installation portion 130 serves as an installation interface of the guide tube 700, so that the guide tube 700 can be installed on the first connector 112 or the second connector 122 through the installation portion 130.

[0082] Among them, see Figures 1 to 3, one guide tube 700 may be provided for single guide hole construction, or two guide tubes 700 may be provided for double guide hole construction. Correspondingly, when one guide tube 700 is provided, the number of the first connector 112 and the number of the second connector 122 are respectively provided to be one; when two guide tubes 700 are provided, the number of the first connector 112 and the number of the second connector 122 are respectively provided to be two.

[0083] It can be understood that the number and layout of the first connectors 112 and the second connectors 122 are only given for example, and can be specifically configured according to actual needs, and are not limited in this embodiment.

[0084] See also Figure 1 In the embodiment of the present application, there is a distance between the side of the mounting portion 130 facing the tunneling host 200 and the tunneling host 200 so that the tunneling host 200 can adjust its posture.

[0085] The purpose of setting the distance between the mounting portion 130 and the tunneling main machine 200 is to facilitate the posture adjustment of the tunneling main machine 200. That is, when the ground state changes, the tunneling posture of the tunneling main machine 200 needs to be adjusted. The distance between the mounting portion 130 and the tunneling main machine 200 can improve the freedom of posture adjustment of the tunneling main machine 200, so that the tunneling main machine 200 can better adapt to different working environments and ensure the normal operation of the tunneling main machine 200.

[0086] At the same time, the distance between the mounting portion 130 and the boring machine 200 makes it more convenient for workers to perform maintenance work, thereby effectively improving work efficiency.

[0087] See also Figure 1 , Figure 4 and Figure 6 In the embodiment of the present application, an openable and closable operating cabin 140 is disposed in both the first connecting body 112 and the second connecting body 122 .

[0088] In specific implementation, the operation cabin 140 is provided to provide an operation space for the staff. The operation cabin 140 has the ability to maintain pressure and enter the cabin under pressure, making the maintenance of the tunneling host 200 more convenient.

[0089] During the construction process, when the boring machine 200 needs to be inspected and maintained, the staff can promptly carry out inspection and maintenance work on the boring machine 200 through the openable and closable operating cabin 140, thereby improving the safety of the combined pipe curtain machine and the work efficiency of the staff.

[0090] Fig.10 for Figure 1 Schematic diagram of the structure of the tunneling host.

[0091] See also Figure 1and Fig.10 In the embodiment of the present application, the boring machine 200 further includes a front shield 220 and a driving member 230 and a cutter head 240 mounted on the front shield 220 , wherein the driving member 230 is used to drive the cutter head 240 to rotate.

[0092] In some embodiments, the front shield 220 is the front structure of the excavation host 200. The front shield 220 is used to guide and fix the position of the cutter head 240 to ensure the accuracy of the excavation direction.

[0093] It is understandable that the driving member 230 is a component used to drive the cutter head 240 to rotate, and the driving member 230 drives the cutter on the cutter head 240 to perform cutting work, so as to realize the excavation function of the excavation host 200.

[0094] See also Figure 1 and Fig.10 In the embodiment of the present application, the tunneling main machine 200 also includes a plurality of hinged assemblies 250, one end of the hinged assembly 250 is hinged to the end of the front shield 220 away from the cutter disc 240, and the other end of the hinged assembly 250 is fixedly connected to the end of the connecting shield body 210 away from the combined tail shield structure 100, and the hinged assembly 250 is used for correcting the deviation of the tunneling main machine 200.

[0095] Among them, in order to achieve posture adjustment of the excavation host 200 and prevent the excavation host 200 from deviating from the excavation direction, the excavation host 200 is provided with a hinge assembly 250, which is located between the front shield 220 and the connecting shield body 210, and is respectively connected to the front shield 220 and the connecting shield body 210.

[0096] It is understandable that the number and layout of the hinge components 250 are given for exemplary purposes only and can be specifically configured according to actual needs, and this embodiment does not limit this.

[0097] See also Figure 1 and Fig.10 In the embodiment of the present application, the articulated assembly 250 includes an articulated cylinder 251 and an articulated ring 252 articulated to the articulated cylinder 251. The end of the articulated cylinder 251 away from the connecting shield body 210 is articulated to the front shield 220, and the articulated cylinder 251 is used to drive the front shield 220 to adjust its posture; the end of the articulated ring 252 away from the front shield 220 is fixedly connected to the connecting shield body 210, and the articulated ring 252 is used to adapt to the posture change of the front shield 220.

[0098] In the present application, due to the problem of uneven soil quality, the excavation main machine 200 may deviate during the excavation process, so the end of the articulated oil cylinder 251 away from the connecting shield body 210 is hinged to the front shield 220, and the other end is hinged to the articulated ring 252, and the end of the articulated ring 252 away from the articulated oil cylinder 251 is fixedly connected to the connecting shield body 210. When the excavation main machine 200 needs to be corrected, the excavation direction of the excavation main machine 200 is adjusted by controlling the extension and contraction of the articulated oil cylinder 251, and the articulated ring 252 is used to adapt to the posture change of the front shield 220.

[0099] It is understandable that, by providing the articulated cylinder 251 and the articulated ring 252 , the tunneling main machine 200 can better adapt to complex terrain and construction environment, thereby improving the operating efficiency and construction quality of the tunneling main machine 200 .

[0100] Fig.12 A flow chart of the pipe curtain construction method provided in an embodiment of the present application.

[0101] See also Fig.11 and Fig.12 On the basis of the above embodiments, the present application also provides a pipe curtain construction method, using the above combined pipe curtain machine, the pipe curtain construction method comprises the following steps:

[0102] S101. Carry out construction at the point to be excavated to form a guide hole.

[0103] It can be understood that the location of the excavation point is first determined, the excavation equipment is arranged at that location, and the guide tube 700 is installed on the excavation equipment, and the excavation equipment is started to carry out excavation work. As the guide tube 700 is pushed forward, a guide hole is formed on its path.

[0104] S102 , selecting to use the straight-line combined tail shield 110 according to the straight-line point 300 , and selecting to use the corner-type combined tail shield 120 according to the corner-type point 400 .

[0105] When the pipe curtain is constructed, when the straight point 300 needs to be constructed, the straight combined tail shield 110 is used. Similarly, when the corner point 400 needs to be constructed, the corner combined tail shield 120 is used.

[0106] S103 , adjusting the angle of the straight-type combined tail shield 110 or the corner-type combined tail shield 120 .

[0107] It is understandable that during the construction of the pipe curtain, there are multiple straight points 300 and corner points 400, and the angle of the straight combined tail shield 110 needs to be adjusted according to the straight points 300 at different positions. Similarly, the angle of the corner combined tail shield 120 needs to be adjusted according to the corner points 400 at different positions.

[0108] S104, connecting the first connection part 211 of the tunneling main machine 200 to the second connection part 111 of the linear combined tail shield 110, and using the guide hole to provide guidance for the tunneling of the tunneling main machine 200, so as to perform pipe curtain construction on the linear point 300;

[0109] Alternatively, the first connection part 211 of the tunneling main machine 200 is connected to the third connection part 121 of the corner type combined tail shield 120, and the guide hole is used to provide guidance for the tunneling of the tunneling main machine 200, so as to perform pipe curtain construction on the corner type point 400.

[0110] In the present application, when constructing a linear point 300, the excavation host 200 is installed on the linear combination tail shield 110 whose angle has been adjusted through the first connection part 211 at the starting position, and then the linear combination tail shield 110 is connected to the guide pipe 700, and the linear combination pipe segment 500 is installed on the linear combination tail shield 110, and the excavation host 200 is started, and the guide pipe 700 is used to provide guidance for the excavation of the excavation host 200, so as to push the linear combination pipe segment 500 into the construction point. After the construction is completed, the excavation host 200 and the linear combination tail shield 110 are received at the end position, and the linear combination tail shield 110 and the excavation host 200 are moved to the next linear point 300, and the angle of the linear combination tail shield 110 is adjusted, and the linear point 300 is constructed until the construction of all linear points 300 is completed.

[0111] Similarly, when constructing a corner point 400, the excavation host 200 is installed on the corner combination tail shield 120 with the angle adjusted at the starting position through the first connection part 211, and then the corner combination tail shield 120 is connected to the guide pipe 700, and the corner combination pipe segment 600 is installed on the corner combination tail shield 120, and the excavation host 200 is started, and the guide pipe 700 is used to provide guidance for the excavation of the excavation host 200, so as to push the corner combination pipe segment 600 into the construction point. After the construction is completed, the excavation host 200 and the corner combination tail shield 120 are received at the end position, and the corner combination tail shield 120 and the excavation host 200 are moved to the next corner point 400, and the angle of the corner combination tail shield 120 is adjusted, and the corner point 400 is constructed, until the construction of all corner points 400 is completed.

[0112] In summary, the combined pipe curtain machine and pipe curtain construction method provided in the present application realize the excavation of the stratum by setting up the excavation main machine 200. The combined tail shield structure 100 includes a straight-line combined tail shield 110 and a corner-type combined tail shield 120, which are respectively used for the pipe curtain construction of the straight-line point 300 and the corner-type point 400. The excavation main machine 200 has a connecting shield body 210, and the connecting shield body 210 is provided with a first connecting part 211, and the straight-line combined tail shield 110 and the corner-type combined tail shield 120 are respectively provided with a second connecting part 111 and a third connecting part 121, and the second connecting part 111 and the third connecting part 121 are respectively detachably connected to the first connecting part 211, and at the same time, the excavation angle of the straight-line combined tail shield 110 or the corner-type combined tail shield 120 can be adjusted, and the excavation main machine 200 can be connected to the straight-line combined tail shield 110 or the corner-type combined tail shield 120 without rotation. Therefore, the straight-type combined tail shield 110 and the corner-type combined tail shield 120 can realize the construction of multiple pipe curtain channels by a single jacking under the excavation of the excavation main machine 200, thereby improving the construction efficiency.

[0113] 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 it. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded 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 curtain machine, characterized in that: It comprises a combined tail shield structure (100) and at least two tunneling main machines (200), wherein the tunneling main machines (200) have a connecting shield body (210), and at least two first connecting parts (211) are arranged on the connecting shield body (210); The combined tail shield structure (100) comprises a straight-line combined tail shield (110) and a corner-type combined tail shield (120), wherein the straight-line combined tail shield (110) and the corner-type combined tail shield (120) are respectively used for pipe curtain construction at straight-line points (300) and corner-type points (400); The straight-line combined tail shield (110) and the corner-type combined tail shield (120) are respectively provided with at least two second connection parts (111) and at least two third connection parts (121); the second connection parts (111) and the third connection parts (121) are respectively detachably connected to the first connection part (211) so as to connect the straight-line combined tail shield (110) or the corner-type combined tail shield (120) to the tunneling main machine (200).

2. The combined pipe curtain machine according to claim 1, characterized in that: The linear combined tail shield (110) comprises a first round steel structure (113) and at least one first connector (112) fixedly connected to the first round steel structure (113); an end of the first round steel structure (113) away from the first connector (112) is used for mounting a linear combined pipe segment (500); At least two first connection ends (1131) are provided at one end of the first round steel structure (113) close to the first connection body (112), and the second connection part (111) is evenly arranged on the first connection ends (1131) so that the first connection ends (1131) and the excavation main machine (200) can be detachably connected in a one-to-one correspondence.

3. The combined pipe curtain machine according to claim 2, characterized in that: The corner type combined tail shield (120) comprises a second round steel structure (123) and at least one second connecting body (122) fixedly connected to the second round steel structure (123), wherein one end of the second round steel structure (123) away from the second connecting body (122) is used for installing the corner type combined pipe joint (600); At least two second connection ends (1231) are provided at one end of the second circular steel structure (123) close to the second connection body (122), and the third connection part (121) is evenly arranged on the second connection ends (1231) so that the second connection ends (1231) and the excavation main machine (200) can be detachably connected in a one-to-one correspondence.

4. The combined pipe curtain machine according to claim 3, characterized in that: The first connecting body (112) and the second connecting body (122) are both provided with a mounting portion (130), and the mounting portion (130) is used for mounting a pilot pipe (700).

5. The combined pipe curtain machine according to claim 4, characterized in that: A distance is provided between a side of the mounting portion (130) facing the excavation main machine (200) and the excavation main machine (200) so as to allow the excavation main machine (200) to adjust its posture.

6. The combined pipe curtain machine according to claim 5, characterized in that: An openable and closable operating cabin (140) is provided in both the first connecting body (112) and the second connecting body (122).

7. The combined pipe curtain machine according to any one of claims 1 to 6, characterized in that: The excavation host (200) further comprises a front shield (220), and a driving member (230) and a cutter head (240) mounted on the front shield (220), wherein the driving member (230) is used to drive the cutter head (240) to rotate.

8. The combined pipe curtain machine according to claim 7, characterized in that: The tunneling main machine (200) further comprises a plurality of hinged assemblies (250), one end of the hinged assembly (250) being hinged to an end of the front shield (220) away from the cutterhead (240), and the other end of the hinged assembly (250) being fixedly connected to an end of the connecting shield body (210) away from the combined tail shield structure, and the hinged assembly (250) is used for correcting the deviation of the tunneling main machine (200).

9. The combined pipe curtain machine according to claim 8, characterized in that: The articulated assembly (250) comprises an articulated oil cylinder (251) and an articulated ring (252) articulated to the articulated oil cylinder (251); one end of the articulated oil cylinder (251) away from the shield body (210) is articulated to the front shield (220); the articulated oil cylinder (251) is used to drive the front shield (220) to adjust its posture; One end of the hinge ring (252) away from the front shield (220) is fixedly connected to the connecting shield body (210), and the hinge ring (252) is used to adapt to changes in the posture of the front shield (220).

10. A pipe curtain construction method, characterized in that: Using the combined pipe curtain machine according to any one of claims 1 to 9, the pipe curtain construction method comprises the following steps: Carry out construction at the point to be excavated to form a pilot hole; The linear combined tail shield (110) is selected for use according to the linear point (300), and the corner combined tail shield (120) is selected for use according to the corner point (400); Adjusting the angle of the straight-line combined tail shield (110) or the corner-type combined tail shield (120); The first connection part (211) of the tunneling main machine (200) is connected to the second connection part (111) of the linear combined tail shield (110), and the guide hole is used to provide guidance for the tunneling of the tunneling main machine (200), so as to perform pipe curtain construction on the linear point (300); Alternatively, the first connection portion (211) of the tunneling main machine (200) is connected to the third connection portion (121) of the corner-type combined tail shield (120), and the guide hole is used to provide guidance for the tunneling of the tunneling main machine (200), so as to perform pipe curtain construction on the corner-type point (400).

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