Tunnel boring machine steel arch installation system and method

Abstract

The present disclosure relates to a system and method for installing a steel arch frame of a tunnel boring machine, comprising: a steel arch frame installer, a plurality of fixed prisms and a mobile prism, a total station, and a host computer; the plurality of fixed prisms are installed on the steel arch frame installer; the plurality of mobile prisms are installed on the installed steel arch frame; the total station measures the coordinates of the plurality of fixed prisms and the plurality of mobile prisms; the host computer determines a first mileage difference based on the coordinates of the fixed prisms, the center point positions of guide rollers on the steel arch frame installer after they are fully extended, and a tunnel plan line; during each installation, the first center point coordinates are obtained by fitting the coordinates of the mobile prisms, and the second center point coordinates are obtained by fitting the coordinates of the fixed prisms; the advancement distance of the next steel arch frame from the steel arch frame installed with the mobile prisms is determined based on the mileage of the first center point coordinates and the second center point coordinates on the tunnel plan line and the first mileage difference, and the next steel arch frame is installed based on the advancement distance.

Description

Technical Field

[0001] The present disclosure relates to the technical field of tunnel steel arch installation, and in particular to a tunnel boring machine steel arch installation system and method. Background Art

[0002] A TBM (Tunnel Boring Machine) is a tunnel construction machine that integrates tunneling, mucking, support, and ventilation functions, enabling a single-stage tunnel excavation. In open-type TBM construction, after the final tunneling phase, steel arches are installed to support the tunnel and improve its stability and safety. Therefore, improving the rationality of steel arch installation can improve tunnel stability and safety to a certain extent.

[0003] In related technologies, when steel arch frames are installed, the distance between the front and rear steel arch frames is mostly positioned manually. However, there are certain errors in manual positioning. The error in the distance between the two steel arch frames will not only directly affect the quality of support, but also affect the subsequent tightening degree of the TBM support shoes. Because the support shoes of the tunnel boring machine need to be supported on the tunnel wall after excavation, there are grooves for the steel arch frames on the support shoes. If the installation positioning of the steel arch frames is inaccurate, it will affect the subsequent tightening of the support shoes. Summary of the Invention

[0004] In order to overcome the technical problem of inaccurate installation positioning of a steel arch frame of a tunnel boring machine during installation in the related art, the present disclosure provides a tunnel boring machine steel arch frame installation system and method.

[0005] In a first aspect of an embodiment of the present disclosure, a tunnel boring machine steel arch installation system is provided, the system comprising: a steel arch installer, a plurality of fixed prisms, a plurality of mobile prisms, a total station, and a host computer;

[0006] The plurality of fixed prisms are all mounted on the steel arch mount;

[0007] The plurality of mobile prisms are installed on the already installed steel arch frame of the tunnel boring machine;

[0008] The steel arch frame installer includes a guide roller. After the guide roller clamps the tunnel boring machine steel arch frame and is fully extended, the longitudinal plane where the center point of the guide roller is located coincides with the longitudinal plane where the center point of the steel arch frame installer is located, and the longitudinal plane is parallel to the cross section of the steel arch frame.

[0009] The total station is used to measure the coordinates of the plurality of fixed prisms and the plurality of movable prisms;

[0010] The host computer is configured to: after initializing the tunnel boring machine steel arch installation system, determine and save a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the guide rollers on the steel arch installer after they are fully extended, and the tunnel plan line;

[0011] During each installation of the tunnel boring machine steel arch, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the tunnel plan line is calculated; second center point coordinates of the plurality of fixed prisms are obtained by fitting according to the coordinates of the plurality of fixed prisms, and a second mileage of the second center point coordinates on the tunnel plan line is calculated;

[0012] Obtain the first mileage difference saved in the host computer, and determine the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames installed with multiple mobile prisms based on the current first mileage, the current second mileage and the first mileage difference, and install the next tunnel boring machine steel arch frame based on the advancement distance.

[0013] In a preferred embodiment, the plurality of movable prisms are divided into two groups and respectively mounted on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed;

[0014] The host computer is specifically used for:

[0015] According to the coordinates of the plurality of movable prisms installed on the front end surface, the coordinates of the center of the front end surface are obtained by fitting a circle;

[0016] According to the coordinates of the plurality of movable prisms installed on the rear end face, the coordinates of the center of the rear end face are obtained by fitting a circle;

[0017] The average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

[0018] In a preferred embodiment, the host computer is specifically used to:

[0019] After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line;

[0020] Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line;

[0021] The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

[0022] In a preferred embodiment, the host computer is specifically used to:

[0023] determining the advancement mileage of the next tunnel boring machine steel arch according to the sum of the difference between the second mileage and the first mileage;

[0024] According to the difference between the first mileage and the advancement mileage, the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames on which the multiple mobile prisms are installed is determined.

[0025] In a preferred embodiment, the steel arch installer further comprises: a hydraulic cylinder and a stroke sensor;

[0026] The host computer is specifically used for:

[0027] According to the advancing distance, controlling the extension amount of the hydraulic cylinder to advance the next tunnel boring machine steel arch to the target installation position corresponding to the advancing distance;

[0028] When it is determined according to the stroke measured by the stroke sensor that the next tunnel boring machine steel arch is to be advanced to the target installation position, the hydraulic cylinder is controlled to stop advancing and the next tunnel boring machine steel arch is installed.

[0029] In a preferred embodiment, the distance differences between the adjacent fixed prisms installed on the steel arch mounter among the plurality of fixed prisms are equal.

[0030] In a preferred embodiment, the height coordinate value represented by the coordinates of the second center point is the same as the height coordinate value represented by the coordinates of the center point of the steel arch mount.

[0031] In a second aspect of the embodiments of the present disclosure, a method for installing a steel arch frame of a tunnel boring machine is provided, which is applied to the steel arch frame installation system of the tunnel boring machine described in any one of the first aspects. The method comprises:

[0032] After initializing the tunnel boring machine steel arch installation system, determining and saving a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line;

[0033] During each installation of the tunnel boring machine steel arch, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the planned tunnel line is calculated;

[0034] fitting the coordinates of the second center points of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the second mileage of the coordinates of the second center points on the planned tunnel line;

[0035] Obtaining a first mileage difference stored in the host computer, and determining an advancement distance of a next tunnel boring machine steel arch from the tunnel boring machine steel arches on which the plurality of mobile prisms are mounted based on the current first mileage, the current second mileage, and the first mileage difference;

[0036] The next tunnel boring machine steel arch is installed according to the advancing distance.

[0037] In a preferred embodiment, the plurality of movable prisms are divided into two groups and respectively mounted on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed;

[0038] The fitting of the coordinates of the plurality of movable prisms to obtain the coordinates of the first center points of the plurality of movable prisms comprises:

[0039] According to the coordinates of the plurality of movable prisms installed on the front end surface, the coordinates of the center of the front end surface are obtained by fitting a circle;

[0040] According to the coordinates of the plurality of movable prisms installed on the rear end face, the coordinates of the center of the rear end face are obtained by fitting a circle;

[0041] The average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

[0042] In a preferred embodiment, after initializing the tunnel boring machine steel arch installation system, determining and saving a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line includes:

[0043] After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line;

[0044] Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line;

[0045] The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

[0046] In a preferred embodiment, determining the advancement distance of the next tunnel boring machine steel arch from the plurality of tunnel boring machine steel arches on which the mobile prisms are mounted based on the current first mileage, the current second mileage, and the first mileage difference includes:

[0047] determining the advancement mileage of the next tunnel boring machine steel arch according to the sum of the difference between the second mileage and the first mileage;

[0048] According to the difference between the first mileage and the advancement mileage, the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames on which the multiple mobile prisms are installed is determined.

[0049] In a preferred embodiment, the steel arch installer further comprises: a hydraulic cylinder and a stroke sensor;

[0050] The step of installing the next tunnel boring machine steel arch according to the advancing distance comprises:

[0051] According to the advancing distance, controlling the extension amount of the hydraulic cylinder to advance the next tunnel boring machine steel arch to the target installation position corresponding to the advancing distance;

[0052] When it is determined according to the stroke measured by the stroke sensor that the next tunnel boring machine steel arch is to be advanced to the target installation position, the hydraulic cylinder is controlled to stop advancing and the next tunnel boring machine steel arch is installed.

[0053] In a preferred embodiment, the distance differences between the adjacent fixed prisms installed on the steel arch mounter among the plurality of fixed prisms are equal.

[0054] In a preferred embodiment, the height coordinate value represented by the coordinates of the second center point is the same as the height coordinate value represented by the coordinates of the center point of the steel arch mount.

[0055] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0056] The first mileage difference is determined based on the coordinates of the fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line. During each installation, the coordinates of the first centers of the multiple mobile prisms are fitted based on the coordinates of the multiple mobile prisms, and the first mileage of the first center coordinates on the tunnel plan line is calculated. The coordinates of the second centers of the multiple fixed prisms are fitted based on the coordinates of the multiple fixed prisms, and the second mileage of the second center coordinates on the tunnel plan line is calculated. The first mileage difference stored in the host computer is obtained, and the advancement distance of the next tunnel boring machine steel arch from the tunnel boring machine steel arch installed by the multiple mobile prisms is determined based on the current first mileage, the current second mileage, and the first mileage difference. This improves the accuracy of the tunnel boring machine steel arch positioning, and the next tunnel boring machine steel arch is installed based on the advancement distance. This improves the accuracy of the tunnel boring machine steel arch installation, thereby improving the accuracy, reliability, and safety of tunnel construction.

[0057] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0059] Figure 1 The figure is a schematic diagram showing the installation of a steel arch mounting system for a tunnel boring machine according to an exemplary embodiment.

[0060] Figure 2 The present invention is a flow chart showing a method for installing a steel arch frame of a tunnel boring machine according to an exemplary embodiment.

[0061] Figure 3 An implementation according to an exemplary embodiment is shown Figure 2 Flowchart of S22 in FIG.

[0062] Figure 4 An implementation according to an exemplary embodiment is shown Figure 2 Flowchart of S24 in FIG. DETAILED DESCRIPTION

[0063] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0064] Figure 1 FIG. 1 is a schematic diagram showing an installation system for a tunnel boring machine steel arch according to an exemplary embodiment. Figure 1 As shown, the tunnel boring machine steel arch installation system includes: a steel arch installer 100, a plurality of fixed prisms 200, a plurality of mobile prisms 300, a total station and a host computer;

[0065] The plurality of fixed prisms 200 are all mounted on the steel arch mount 100;

[0066] The plurality of mobile prisms 300 are installed on the already installed steel arch frame of the tunnel boring machine;

[0067] The steel arch installer 100 includes a guide roller 110. After the guide roller 110 clamps the tunnel boring machine steel arch and is fully extended, the longitudinal plane where the center point of the guide roller 110 is located coincides with the longitudinal plane where the center point of the steel arch installer is located, and the longitudinal plane is parallel to the cross section of the steel arch.

[0068] The total station is used to measure the coordinates of the plurality of fixed prisms and the plurality of movable prisms;

[0069] The host computer is configured to: after initializing the tunnel boring machine steel arch installation system, determine and save a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the guide rollers on the steel arch installer after they are fully extended, and the tunnel plan line;

[0070] During each installation of the tunnel boring machine steel arch, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the tunnel plan line is calculated; second center point coordinates of the plurality of fixed prisms are obtained by fitting according to the coordinates of the plurality of fixed prisms, and a second mileage of the second center point coordinates on the tunnel plan line is calculated;

[0071] Obtain the first mileage difference saved in the host computer, and determine the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames installed with multiple mobile prisms based on the current first mileage, the current second mileage and the first mileage difference, and install the next tunnel boring machine steel arch frame based on the advancement distance.

[0072] It can be explained that the gripper shoes of the hard rock tunnel boring machine need to be supported on the tunnel wall after excavation. There are grooves for steel arch frames reserved on the gripper shoes, so the installation of the steel arch frames needs to be accurately positioned to avoid affecting the subsequent tightening of the gripper shoes.

[0073] In one embodiment, the tunnel boring machine steel arch installation system may further include a programmable controller communicatively connected to a host computer, wherein a PLC program is written into the programmable controller, and the host computer may control the movement of the steel arch installer according to the PLC program.

[0074] After initializing the tunnel boring machine steel arch installation system, the above-mentioned technical solution determines and saves a first mileage difference based on the coordinates of the multiple fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line. During each tunnel boring machine steel arch installation process, the first center point coordinates of the multiple mobile prisms are fitted based on the coordinates of the multiple mobile prisms, and the first mileage of the first center point coordinates on the tunnel plan line is calculated. The second center point coordinates of the multiple fixed prisms are fitted based on the coordinates of the multiple fixed prisms, and the second mileage of the second center point coordinates on the tunnel plan line is calculated. The first mileage difference stored in the host computer is obtained, and the advancement distance of the next tunnel boring machine steel arch from the tunnel boring machine steel arch installed by the multiple mobile prisms is determined based on the current first mileage, the current second mileage, and the first mileage difference. This improves the accuracy of tunnel boring machine steel arch positioning, and the next tunnel boring machine steel arch is installed based on the advancement distance. This improves the accuracy of tunnel boring machine steel arch installation, thereby improving the accuracy, reliability, and safety of tunnel construction.

[0075] In a preferred embodiment, the plurality of movable prisms are divided into two groups and respectively mounted on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed;

[0076] The host computer is specifically used for:

[0077] According to the coordinates of the plurality of movable prisms installed on the front end surface, the coordinates of the center of the front end surface are obtained by fitting a circle;

[0078] According to the coordinates of the plurality of movable prisms installed on the rear end face, the coordinates of the center of the rear end face are obtained by fitting a circle;

[0079] The average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

[0080] In a preferred embodiment, the host computer is specifically used to:

[0081] After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line;

[0082] Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line;

[0083] The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

[0084] In a preferred embodiment, the host computer is specifically used to:

[0085] determining the advancement mileage of the next tunnel boring machine steel arch according to the sum of the difference between the second mileage and the first mileage;

[0086] According to the difference between the first mileage and the advancement mileage, the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames on which the multiple mobile prisms are installed is determined.

[0087] In a preferred embodiment, the steel arch installer further comprises: a hydraulic cylinder and a stroke sensor;

[0088] The host computer is specifically used for:

[0089] According to the advancing distance, controlling the extension amount of the hydraulic cylinder to advance the next tunnel boring machine steel arch to the target installation position corresponding to the advancing distance;

[0090] When it is determined according to the stroke measured by the stroke sensor that the next tunnel boring machine steel arch is to be advanced to the target installation position, the hydraulic cylinder is controlled to stop advancing and the next tunnel boring machine steel arch is installed.

[0091] In a preferred embodiment, the distance differences between the adjacent fixed prisms installed on the steel arch mounter among the plurality of fixed prisms are equal.

[0092] In the embodiments of this disclosure, see Figure 1 As shown, the number of fixed prisms is at least 3.

[0093] In a preferred embodiment, the height coordinate value represented by the coordinates of the second center point is the same as the height coordinate value represented by the coordinates of the center point of the steel arch mount.

[0094] The present disclosure also provides a method for installing a steel arch frame of a tunnel boring machine, which is applied to the steel arch frame installation system of the tunnel boring machine described in any one of the aforementioned embodiments. The method comprises the following steps:

[0095] In step S21, after initializing the tunnel boring machine steel arch installation system, a first mileage difference is determined and saved based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line.

[0096] In step S22, during each execution of the tunnel boring machine steel arch installation process, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the tunnel plan line is calculated;

[0097] In step S23, second center point coordinates of the plurality of fixed prisms are obtained by fitting according to the coordinates of the plurality of fixed prisms, and a second mileage of the second center point coordinates on the planned tunnel line is calculated;

[0098] In step S24, the first mileage difference stored in the host computer is obtained, and the advancement distance of the next tunnel boring machine steel arch from the tunnel boring machine steel arches on which the multiple mobile prisms are installed is determined based on the current first mileage, the current second mileage, and the first mileage difference;

[0099] In step S25, the next tunnel boring machine steel arch is installed according to the advancing distance.

[0100] In a preferred embodiment, the plurality of movable prisms are divided into two groups and respectively mounted on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed;

[0101] See also Figure 3 As shown, in step S22, the first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, including:

[0102] In step S221, according to the coordinates of the plurality of movable prisms installed on the front end surface, a fitting circle is calculated to obtain the coordinates of the center of the front end surface;

[0103] In step S222, the coordinates of the center of the rear end face are obtained by fitting a circle according to the coordinates of the plurality of movable prisms installed on the rear end face;

[0104] In step S223, the average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

[0105] After initializing the tunnel boring machine steel arch installation system, determining and saving a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line, includes:

[0106] After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line;

[0107] Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line;

[0108] The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

[0109] In a preferred embodiment, see Figure 4 As shown, in step S24, determining the advancement distance of the next tunnel boring machine steel arch from the tunnel boring machine steel arches on which the multiple mobile prisms are installed based on the current first mileage, the current second mileage, and the first mileage difference includes:

[0110] In step S241, the advancement mileage of the next tunnel boring machine steel arch is determined according to the sum of the difference between the second mileage and the first mileage;

[0111] In step S242, based on the difference between the first mileage and the advancement mileage, the advancement distance of the next tunnel boring machine steel arch from the tunnel boring machine steel arches on which the plurality of mobile prisms are installed is determined.

[0112] In a preferred embodiment, the steel arch installer further comprises: a hydraulic cylinder and a stroke sensor;

[0113] The step of installing the next tunnel boring machine steel arch according to the advancing distance comprises:

[0114] According to the advancing distance, controlling the extension amount of the hydraulic cylinder to advance the next tunnel boring machine steel arch to the target installation position corresponding to the advancing distance;

[0115] When it is determined according to the stroke measured by the stroke sensor that the next tunnel boring machine steel arch is to be advanced to the target installation position, the hydraulic cylinder is controlled to stop advancing and the next tunnel boring machine steel arch is installed.

[0116] In a preferred embodiment, the distance differences between the adjacent fixed prisms installed on the steel arch mounter among the plurality of fixed prisms are equal.

[0117] In a preferred embodiment, the height coordinate value represented by the coordinates of the second center point is the same as the height coordinate value represented by the coordinates of the center point of the steel arch mount.

[0118] In one embodiment, when the system is used for the first time, movable prisms are installed at multiple positions on the front face of the previous ring steel arch frame that has been installed. The host computer controls the total station to measure the coordinates of the multiple movable prisms and calculates the center coordinates of the front face of the previous ring steel arch frame that has been installed by fitting a circle. The same method is used to install movable prisms at multiple positions on the rear face of the previous ring steel arch frame that has been installed. The host computer controls the total station to measure the coordinates of the multiple movable prisms and calculates the center coordinates of the rear face of the previous ring steel arch frame that has been installed by fitting a circle. The center coordinates of the front face and the rear face of the previous ring steel arch frame that has been installed are averaged to calculate the center coordinates of the middle position of the steel arch frame, and the mileage of the previous ring steel arch frame that has been installed is calculated based on this coordinate and the tunnel plan line. At the same time, the mileage is recorded in the host computer for storage.

[0119] Furthermore, after the steel arch frame installer assembles the steel arch frame, the assembled steel arch frame is fully unfolded, and movable prisms are respectively installed at multiple positions on the front end face and the rear end face of the assembled steel arch frame. The host computer is used to control the total station to measure the movable prisms at multiple positions, and the coordinates of the movable prisms at multiple positions on the front end face and the rear end face of the fully unfolded steel arch frame are respectively measured, and a fitting circle is performed to calculate the center coordinates of the front end face and the rear end face of the fully unfolded steel arch frame. The center coordinates of the front end face and the rear end face of the fully unfolded steel arch frame are averaged to calculate the center coordinates of the middle position of the steel arch frame. Thereafter, the host computer is used to control the total station to measure the coordinates of the three fixed prisms installed on the steel arch frame installer, and the center coordinates of the three fixed prisms are calculated by fitting. The host computer calculates the distance difference between the center coordinates of the three fixed prisms and the center coordinates of the middle position of the fully unfolded steel arch frame and records it therein.

[0120] Furthermore, after the steel arch frame installer assembles the steel arch frame, the host computer controls the total station to measure the coordinates of the three fixed prisms installed on the steel arch frame installer. The coordinates of the centers of the three fixed prisms are calculated based on the coordinates of the three fixed prisms. These center coordinates are then used in conjunction with the tunnel plan line to calculate the mileage of the centers of the three fixed prisms. This mileage plus the difference between the center coordinates of the three fixed prisms and the center coordinates of the middle position of the fully deployed steel arch frame is the mileage of the currently assembled steel arch frame. The host computer controls the PLC to adjust the extension of the hydraulic cylinder of the steel arch frame installer based on the difference between the mileage of the previous ring of installed steel arch frames and the mileage of the currently assembled steel arch frame. By adjusting the difference between the mileage of the currently assembled steel arch frame on the steel arch frame installer and the mileage of the previous ring of installed steel arch frames in the above manner to the required distance between the installed steel arch frames, the precise positioning of the steel arch frames can be controlled.

[0121] Furthermore, after the positioning is completed, the steel arch frame installer fully unfolds the steel arch frame and carries out subsequent processes. The host computer records the mileage of the steel arch frame that has been installed at this time to prepare for the installation of the next ring of steel arch frames.

[0122] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the present disclosure. This disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0123] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A tunnel boring machine steel arch installation system, characterized in that: The system includes: a steel arch mount, a plurality of fixed prisms, a plurality of movable prisms, a total station and a host computer; The plurality of fixed prisms are all mounted on the steel arch mount; The plurality of mobile prisms are installed on the already installed steel arch frame of the tunnel boring machine; The steel arch frame installer includes a guide roller. After the guide roller clamps the tunnel boring machine steel arch frame and is fully extended, the longitudinal plane where the center point of the guide roller is located coincides with the longitudinal plane where the center point of the steel arch frame installer is located, and the longitudinal plane is parallel to the cross section of the steel arch frame. The total station is used to measure the coordinates of the plurality of fixed prisms and the plurality of movable prisms; The host computer is configured to: after initializing the tunnel boring machine steel arch installation system, determine and save a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the guide rollers on the steel arch installer after they are fully extended, and the tunnel plan line; During each installation of the tunnel boring machine steel arch, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the tunnel plan line is calculated; second center point coordinates of the plurality of fixed prisms are obtained by fitting according to the coordinates of the plurality of fixed prisms, and a second mileage of the second center point coordinates on the tunnel plan line is calculated; Obtain the first mileage difference saved in the host computer, and determine the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames installed with multiple mobile prisms based on the current first mileage, the current second mileage and the first mileage difference, and install the next tunnel boring machine steel arch frame based on the advancement distance.

2. The tunnel boring machine steel arch installation system according to claim 1, characterized in that: The plurality of movable prisms are divided into two groups and respectively installed on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed; The host computer is specifically used for: According to the coordinates of the plurality of movable prisms installed on the front end surface, the coordinates of the center of the front end surface are obtained by fitting a circle; According to the coordinates of the plurality of movable prisms installed on the rear end face, the coordinates of the center of the rear end face are obtained by fitting a circle; The average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

3. The tunnel boring machine steel arch installation system according to claim 1, characterized in that: The host computer is specifically used for: After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line; Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line; The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

4. The tunnel boring machine steel arch installation system according to claim 1, characterized in that: The host computer is specifically used for: determining the advancement mileage of the next tunnel boring machine steel arch according to the sum of the difference between the second mileage and the first mileage; According to the difference between the first mileage and the advancement mileage, the advancement distance of the next tunnel boring machine steel arch frame from the tunnel boring machine steel arch frames on which the multiple mobile prisms are installed is determined.

5. The tunnel boring machine steel arch installation system according to claim 1, characterized in that: The steel arch installer also includes: a hydraulic cylinder and a stroke sensor; The host computer is specifically used for: According to the advancing distance, controlling the extension amount of the hydraulic cylinder to advance the next tunnel boring machine steel arch to the target installation position corresponding to the advancing distance; When it is determined according to the stroke measured by the stroke sensor that the next tunnel boring machine steel arch is to be advanced to the target installation position, the hydraulic cylinder is controlled to stop advancing and the next tunnel boring machine steel arch is installed.

6. The tunnel boring machine steel arch installation system according to any one of claims 1 to 5, characterized in that: The distance differences between the adjacent fixed prisms installed on the steel arch mounter among the plurality of fixed prisms are equal.

7. The tunnel boring machine steel arch installation system according to any one of claims 1 to 5, characterized in that: The height coordinate value represented by the coordinates of the second center point is the same as the height coordinate value represented by the coordinates of the center point of the steel arch frame installer.

8. A method for installing a steel arch frame of a tunnel boring machine, characterized in that: The method for installing a steel arch frame of a tunnel boring machine according to any one of claims 1 to 7 comprises: After initializing the tunnel boring machine steel arch installation system, determining and saving a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line; During each installation of the tunnel boring machine steel arch, first center point coordinates of the plurality of movable prisms are obtained by fitting according to the coordinates of the plurality of movable prisms, and a first mileage of the first center point coordinates on the planned tunnel line is calculated; fitting the coordinates of the second center points of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the second mileage of the coordinates of the second center points on the planned tunnel line; Obtaining a first mileage difference stored in the host computer, and determining an advancement distance of a next tunnel boring machine steel arch from the tunnel boring machine steel arches on which the plurality of mobile prisms are mounted based on the current first mileage, the current second mileage, and the first mileage difference; The next tunnel boring machine steel arch is installed according to the advancing distance.

9. The method for installing a steel arch frame of a tunnel boring machine according to claim 8, characterized in that: The plurality of movable prisms are divided into two groups and respectively installed on the front end face and the rear end face of the steel arch frame that has been completed in the previous ring, wherein the front end face is the side close to the steel arch frame to be installed, and the rear end face is the side away from the steel arch frame to be installed; The fitting of the coordinates of the plurality of movable prisms to obtain the coordinates of the first center points of the plurality of movable prisms comprises: According to the coordinates of the plurality of movable prisms installed on the front end surface, the coordinates of the center of the front end surface are obtained by fitting a circle; According to the coordinates of the plurality of movable prisms installed on the rear end face, the coordinates of the center of the rear end face are obtained by fitting a circle; The average value of the center coordinates of the front face and the rear face is used as the center point coordinates of the plurality of movable prisms.

10. The method for installing a steel arch frame of a tunnel boring machine according to claim 8, characterized in that: After initializing the tunnel boring machine steel arch installation system, determining and saving a first mileage difference based on the coordinates of the plurality of fixed prisms, the center position of the fully extended guide rollers on the steel arch installer, and the tunnel plan line, includes: After initializing the tunnel boring machine steel arch installation system, fitting the first reference center point coordinates of the plurality of fixed prisms according to the coordinates of the plurality of fixed prisms, and calculating the first reference mileage of the first reference center point coordinates on the tunnel planning line; Calculate the center point position of the guide roller on the steel arch mount after it is fully extended at the second reference mileage on the tunnel planning line; The first mileage difference is determined according to the mileage difference between the first reference mileage and the second reference mileage, and the first mileage difference is saved.

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