A guide system and guide method of a spiral downward tunnel boring machine

Abstract

This invention discloses a guidance system for a spiral descending tunnel boring machine (TBM). The guidance system provides three-dimensional guidance using a combination of a planar coordinate system and elevation. The planar coordinate system is established around the center of the spiral descending tunnel plane and includes an X-axis and a Y-axis, both parallel to straight lines around the spiral descending tunnel. This invention's guidance system and method for the spiral descending TBM establish a three-dimensional spatial guidance system based on a planar coordinate system and elevation, solving the problem of traditional guidance systems being unable to recognize overlapping horizontal coordinates in spiral descending tunnels. It also divides the tunnel into zones for control and performs planar coordinate value conversion in the planar coordinate transformation zone, providing intuitive values ​​for left and right deviations of the TBM, facilitating accurate and intuitive steering correction by the TBM operator.

Description

Technical Field

[0001] This invention relates to the field of tunnel boring machine guidance technology, specifically a guidance system and guidance method for a spiral descending tunnel boring machine. Background Technology

[0002] In recent years, with the continuous development of underground engineering, tunnel boring machines (TBMs) have been used more and more widely. As an essential construction facility, the guidance system provides directional guidance for TBM operations, ensuring the quality of tunnel construction; its role is self-evident.

[0003] With the continuous expansion of tunnel engineering scale and the diversification of tunnel forms, situations arise where the horizontal coordinates of the tunnel overlap in spiral descending tunnels. Traditional guidance systems, which rely on horizontal and vertical deviations for guidance, cannot identify the orientation of the tunnel boring machine (TBM) to provide guidance for its operation. During TBM operation, the TBM operator controls the machine's attitude using three values: horizontal deviation, vertical deviation, and roll angle. Traditional guidance systems cannot provide horizontal deviation guidance in spiral descending tunnels. Therefore, how to guide the TBM in spiral descending tunnels is an urgent problem to be solved. Summary of the Invention

[0004] This invention provides a guidance system and method for a spiral descending tunnel boring machine that establishes a three-dimensional joint guidance system based on the engineering characteristics of spiral descending tunnels, and performs zoned guidance of the tunnel.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A guiding system for a spiral descending tunnel boring machine (TBM) is disclosed. The guiding system provides three-dimensional guidance using a combination of a planar coordinate system and elevation. The planar coordinate system is established at the center of the spiral descending tunnel plane and includes an X-axis and a Y-axis, both parallel to straight line segments around the spiral descending tunnel. The X-axis is parallel to the straight line segment at the entrance of the spiral descending tunnel. The guiding system divides the spiral descending tunnel into four regions (A, B, C, and D) based on the planar coordinate system and the straight line segments around the tunnel. Turning sections between adjacent regions are planar coordinate transformation zones, and planar coordinate transformation points are set on these zones. The guiding system displays the spatial location of the TBM in a three-dimensional view based on the planar coordinate system and elevation.

[0007] A guiding method for a guiding system of a spiral descending tunnel boring machine, the guiding method comprising the following steps:

[0008] S1. When the tunneling machine starts, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0009] S2. When the tunneling machine enters area A, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0010] S3. When the tunneling machine enters the plane coordinate transformation zone between zone A and zone B, when the Y-axis value decreases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa.

[0011] S4. The tunneling machine passes through zone B and enters the plane coordinate transformation zone between zone B and zone C. When the X-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the Y-axis. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa.

[0012] S5. The tunneling machine passes through zone C and enters the plane coordinate transformation zone between zone C and zone D. When the Y-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0013] S6. Return to step S2 until the tunnel is completed.

[0014] Compared with the prior art, the guiding system and guiding method of the spiral descending tunnel boring machine of the present invention establishes a three-dimensional spatial guiding system of plane coordinate system and elevation, which solves the problem that the traditional guiding system cannot identify the horizontal coordinate overlap of the spiral descending tunnel; the tunnel is controlled in sections, and plane coordinate numerical conversion is performed in the plane coordinate conversion area to provide intuitive values ​​of left and right deviation of the tunnel boring machine, which makes it easier for the tunnel boring machine operator to make accurate and intuitive adjustments and corrections. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the spiral descending tunnel of the present invention.

[0016] Figure 2 This is a schematic diagram of the planar coordinates of the guiding system of the spiral descending tunnel boring machine of the present invention.

[0017] Figure 3 This is a schematic diagram of the guidance zone of the guidance system of the spiral descending tunnel boring machine of the present invention. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 3As shown, a guiding system for a spiral descending tunnel boring machine is provided. The guiding system uses a plane coordinate system 2 and an elevation system for three-dimensional guidance. The plane coordinate system 2 is established at the center of the plane of the spiral descending tunnel 1. The plane coordinate system 2 includes an X-axis and a Y-axis, and the X-axis and Y-axis are parallel to the straight line segments around the spiral descending tunnel 1, wherein the X-axis is parallel to the straight line segment at the entrance of the spiral descending tunnel 1.

[0020] The guidance system divides the spiral descending tunnel 1 into four regions, A, B, C, and D, based on the plane coordinate system 2 and the straight lines around the spiral descending tunnel 1. The turning sections between adjacent regions are plane coordinate transformation areas 21, and plane coordinate transformation points 22 are set on the plane coordinate transformation areas 21.

[0021] The guidance system displays the spatial location of the tunneling machine in a three-dimensional view based on the plane coordinate system 2 and the elevation.

[0022] When the tunneling machine enters the plane coordinate transformation zone 21, the plane coordinates are transformed into X-axis and Y-axis plane coordinates. The transformation process is automatically completed by the guidance system, and the tunneling machine operator is prompted to confirm.

[0023] The guidance method of the guidance system of a spiral descending tunnel boring machine includes the following steps:

[0024] S1. When the tunneling machine starts, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0025] S2. When the tunneling machine enters area A, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0026] S3. When the tunneling machine enters the plane coordinate transformation zone 21 between zone A and zone B, when the Y-axis value decreases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa.

[0027] S4. The tunneling machine passes through area B and enters the plane coordinate transformation area 21 between area B and area C. When the X-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the Y-axis. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa.

[0028] S5. The tunneling machine passes through zone C and enters the plane coordinate transformation zone 21 between zone C and zone D. When the Y-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa.

[0029] S6. Return to step S2 until the tunnel is completed;

[0030] The present invention relates to a guiding system and method for a spiral descending tunnel boring machine. It establishes a three-dimensional spatial guiding system based on a plane coordinate system 2 and elevation, solving the problem that traditional guiding systems cannot identify the overlap of horizontal coordinates in the spiral descending tunnel 1. The tunnel is divided into zones for control, and plane coordinate values ​​are converted in the plane coordinate transformation zone 21 to provide intuitive values ​​for the left and right deviations of the tunnel boring machine, making it easier for the tunnel boring machine operator to make accurate and intuitive adjustments and corrections.

[0031] Finally, it should be noted that the above embodiments are only illustrative of the technical solutions of the present invention, and not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A guiding method for a guiding system of a spiral descending tunnel boring machine, wherein the guiding system uses a plane coordinate system (2) and elevation for three-dimensional guidance; the plane coordinate system (2) is established at the center of the plane of the spiral descending tunnel (1), the plane coordinate system (2) includes an X-axis and a Y-axis, and the X-axis and Y-axis are parallel to the straight line segments around the spiral descending tunnel (1), wherein the X-axis is parallel to the straight line segment at the entrance of the spiral descending tunnel (1), the guiding system divides the spiral descending tunnel (1) into four regions A, B, C and D according to the plane coordinate system (2) and the straight line segments around the spiral descending tunnel (1), the turning section between adjacent regions is a plane coordinate transformation area (21), and a plane coordinate transformation point (22) is set on the plane coordinate transformation area (21), the guiding system displays the spatial position of the tunnel boring machine in a three-dimensional view according to the plane coordinate system (2) and elevation; Its features are, The guiding method includes the following steps: S1. When the tunneling machine starts, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa. S2. When the tunneling machine enters area A, the guiding system uses the Y-axis for guidance. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa. S3. When the tunneling machine enters the plane coordinate transformation zone between zone A and zone B (21), when the Y-axis value decreases to half of the turning radius value of the turning section, the plane coordinate of the guiding system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa. S4. The tunneling machine passes through area B and enters the plane coordinate transformation area between area B and area C (21). When the X-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guiding system is guided by the Y-axis. If the Y-axis value is greater than the design value, the tunneling machine will deviate to the left, and vice versa. S5. The tunneling machine passes through area C and enters the plane coordinate transformation area between area C and area D (21). When the Y-axis value increases to half of the turning radius value of the turning section, the plane coordinate of the guidance system is guided by the X-axis. If the X-axis value is greater than the design value, the tunneling machine will deviate to the right, and vice versa. S6. Return to step S2 until the tunnel is completed.

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