Installation method for final joint of submerged tunnel

Abstract

This application relates to a method for installing a final joint of an immersed tunnel, which belongs to the field of construction of a final joint. The installation method includes setting a first coordinate system, locating feature points, and +2 Attach the pipe fitting and +1 The steps include attaching the pipe joint and pushing out the jack segment, among which the first coordinate system is N +3 Set at the end of the pipe fitting, N +1 At the tip end of the pipe joint, there is a piercing point N +1 S, N +1 Place W, place penetration points DS and DW on the jack segment, and place N +2 At the tip end of the pipe joint, there is a piercing point N +2 S, N +2 W is placed, and piercing points DS, DW, and N +1 S, N +1 W, N +2 S, N +2 The coordinates in the first coordinate system of W are calculated respectively. This mounting method can improve the mounting accuracy of the final joint and is easy to operate.

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This application claims priority to a Chinese patent application with application number 202310921919.3, entitled "Installation method for final joint of immersed tunnel", filed with the China Patent Office on July 26, 2023, the entire contents of which are incorporated herein by reference.

[0002] The present application belongs to the technical field of final joints, and in particular to a method of installing a final joint for an immersed tunnel. [Background technology]

[0003] In order to shorten the construction period, immersed tunnels are usually constructed simultaneously from both ends of the tunnel length, and the final joint is used to connect the pipe joints installed at both ends to achieve the final joint of the tunnel. The installation sequence of the pipe joints is as shown in Figure 1, and the immersed tunnel joint entrance is N +1 Pipe Fittings and N +2 Designed between pipe fittings, among which N +1 A jack segment is installed inside the end of the pipe joint. +2 Install the pipe fittings, then +1 Install the pipe joints and jack segments, and +1 After the pipe joint and jack segment have been lowered, the jack segment is +1 N from pipe fitting +2 Push it toward the pipe joint and connect the jack segment to the N +2 The immersed tunnel connection work will be completed by completing the docking with the pipe joints.

[0004] N +1 Pipe Fittings and N +2 The pipe joints are installed independently of each other, so +1 Pipe Fittings and N +2 Errors in the axis of the pipe joint can occur and affect the quality of the final joint connection, with potentially serious consequences. Summary of the Invention [Problem to be solved by the invention]

[0005] In response to the deficiencies existing in the related art, the present application provides a method for installing a final joint for an immersed tunnel, thereby improving the installation accuracy of the final joint.

[0006] The present application provides a method for installing a final joint of an immersed tunnel, which includes the following steps: First coordinate system setting step. N which has already been installed +3 Set up a first coordinate system at the end of the fitting. Feature point placement step. N +1 At the tip end of the pipe fitting, there is a piercing point N +1 S, N +1 Place W, place penetration points DS and DW on the jack segment, and place N +2 At the tip end of the pipe fitting, there is a piercing point N +2 S, N +2 Place W and pierce points DS, DW, and N +1 S, N +1 W, N +2 S, N +2 The coordinates of W in the first coordinate system are calculated. N +2 Pipe fitting installation step. Above penetration point N +2 S, N +2 Using the coordinates of W in the first coordinate system, +2 Pipe fittings and the above N +3 Calculate the error of the pipe joint and +2 By adjusting the fitting position, the above N +2 The tip of the pipe fitting and the above N +3 The ends of the fittings are precisely docked. N +1 Pipe fitting installation steps. +1 The tip of the pipe joint is precisely docked with the end of the already installed N pipe joint, and the above piercing point N +1 S, N +1 Using the coordinates of W in the first coordinate system, +1 Pipe fittings and the above N +2 Calculate the error of the pipe joint and+1 Adjust the fitting position to the above N +1 Connect the end of the pipe fitting to the above N +2 Install close to the end of the fitting. A jack segment extrusion step. The jack segment and the N are extruded by using the coordinates of the penetration points DS and / or DW in the first coordinate system. +1 Pipe fittings, above N +2 Calculate the error with each pipe joint and +1 The above N of the above jack segment installed inside the pipe joint +2 By adjusting the extrusion direction to the pipe joint, the above jack segment and the above N +2 The ends of the fittings are precisely docked.

[0007] In some embodiments of the present application, the feature point arrangement step further comprises: +3 Control point N at the end of the fitting +3 Place D and the above control point N +3 With D as the reference point, the above piercing points DS, DW, and N +1 S, N +1 W, N +2 S, N +2 W and the above control point N +3 Measure the relative position of the piercing points DS, DW, and N. +1 S, N +1 W, N +2 S, N +2 W into the coordinates in the first coordinate system, +3 The coordinates of D in the first coordinate system are (x0, y0, z0), the coordinates of the piercing point DW in the first coordinate system are (x1, y1, z1), the coordinates of the piercing point DS in the first coordinate system are (x2, y2, z2), and the coordinates of the piercing point N +1 The coordinates of S in the first coordinate system are (x3, y3, z3), and the piercing point N +1 The coordinates of W in the first coordinate system are (x4, y4, z4), and the piercing point N +2 The coordinates of S in the first coordinate system are (x5, y5, z5), and the piercing point N +2The coordinates of W in the first coordinate system are (x6, y6, z6).

[0008] In some embodiments of the present application, the N +2 In the pipe fitting installation step, +2 Pipe fittings and the above N +3 The calculation method for pipe joint tolerance is as follows:

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[0009] In some embodiments of the present application, the N +1 In the pipe fitting installation step, +1 Pipe fittings and the above N +2 The calculation method for pipe joint tolerance is as follows:

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[0010] In some embodiments of the present application, the jack segment and the N are extruded in the jack segment extrusion step. +2The calculation method for pipe joint tolerance is as follows:

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[0011] In some embodiments of the present application, the jack segment and the N are extruded in the jack segment extrusion step. +2 The calculation method for pipe joint tolerance is as follows:

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[0012] In some embodiments of the present application, a control point ND is placed at the end of the N pipe joint, and a second coordinate system setting step is further included for setting a second coordinate system at the end of the N pipe joint, and the feature point placement step further includes setting the control point ND as a reference point and the piercing point N +1 S, N +1 Measure the position of W and the piercing point N +1 S, N +1 By converting W into the coordinates in the second coordinate system, +1 This includes calculating the error between the pipe joint and the above N pipe joint.

[0013] In some embodiments of the present application, the coordinates of the control point ND in the second coordinate system are (x7, y7, z7), and the piercing point N +1 S, N +1 The coordinates of W in the second coordinate system are (x3', y3', z3') and (x4', y4', z4'), respectively. +1 In the pipe fitting installation step, +1 The calculation method for the error between the pipe joint and the above N pipe joint is as follows:

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[0014] In some embodiments of the present application, the piercing point N +2 S, N +2 Measure the relative positions of W and the control point ND, and +2 S, N +2 Convert W into coordinates in the second coordinate system, and use the second coordinate system to find N +1 Pipe fittings and the above N +2 Calculate the error of the pipe joint and the above N +1 Pipe fittings and the above N +2 By comparing the error obtained using the first coordinate system of the pipe joint, the N +1 Pipe fittings and the above N +2 The method further includes a first coordinate system accuracy verification step of verifying accuracy in calculating an error of the pipe joint.

[0015] In some embodiments of the present application, the piercing point N +2 S, N +2 The coordinates of W in the second coordinate system are (x5', y5', z5') and (x6', y6', z6'), respectively. In the first coordinate system accuracy verification step, the second coordinate system is used to verify the accuracy of N. +1 Pipe fittings and the above N +2 The method for calculating the tolerance of a pipe joint is as follows:

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[0016] In some embodiments of the present application, in the first coordinate system setting step, +3 Point o located at the end of the pipe joint and point N +3 Point o located at the tip of the pipe fitting 1 Take the point o as the origin of the first coordinate system, and compare the points o and o 1 The line on which is located is the x-axis of the first coordinate system, and the line passing through the point o is the line on which N is located. +3 A three-dimensional rectangular coordinate system is set with a straight line perpendicular to the top surface of the pipe joint as the z-axis, and is defined as the first coordinate system.

[0017] In some embodiments of the present application, in the first coordinate system setting step, +3 From the end of the fitting to the above N +3 The direction toward the end of the pipe fitting is the positive x-axis direction of the first coordinate system, and using the left-hand rule based on the origin o, x-axis, and positive x-axis direction of the first coordinate system, the straight line on which the left thumb is located is the y-axis of the first coordinate system, and the direction in which the left thumb is pointing is the positive y-axis direction of the first coordinate system.

[0018] In some embodiments of the present application, the second coordinate system setting step includes taking a point o2 located at the end of the N pipe fitting and a point o2' located at the tip of the N pipe fitting, setting the point o2 as the origin of the second coordinate system, setting a straight line on which the points o2 and o2' are located as the x-axis of the second coordinate system, and setting a straight line that passes through the point o2 and is perpendicular to the top surface of the N pipe fitting as the z-axis, and setting this three-dimensional rectangular coordinate system as the second coordinate system.

[0019] According to the above technical solutions, the installation method of the final joint of the immersed tunnel in the embodiment of the present application can realize the precise installation of the final joint, and the installation steps are simple and easy to operate. +3 Set the first coordinate system to the pipe joint and N +2 At the tip end of the pipe fitting, there is a piercing point N +2 S, N +2 Place W and pierce point N +2 S, N +2 Using the coordinates in the first coordinate system of W, +2 Pipe Fittings and N +3 By calculating the error of the pipe joint, N +2 Guides the installation of pipe fittings. N +1 At the tip end of the pipe fitting, there is a piercing point N +1 S, N +1 Place W and pierce point N +1 S, N +1 Using the coordinates of W in the first coordinate system, +1 Pipe Fittings and N +2 By calculating the error of the pipe joint, N +1 The installation of the pipe joint is guided. By placing the penetration points DS and DW on the jack segment, the jack segment and the N +1 Pipe joint error, jack segment and N +2 By calculating the tolerance of the pipe joints, the jack segments can be precisely aligned. +2 It can be docked to the end of a pipe fitting. [Brief description of the drawings]

[0020] The drawings described herein are intended to provide further understanding of the present application and constitute a part of the present application. The schematic examples and the description of the present application are used to interpret the present application and are not to be construed as unduly limiting the present application. In the drawings, [Figure 1] FIG. 1 is a schematic diagram of the structure of a submerged tunnel at the time of final joint installation in the prior art. [Diagram 2] FIG. 2 is a flow chart of one embodiment of the method for installing a final joint of an immersed tunnel according to the present invention. [Diagram 3] FIG. 3 is a schematic diagram of the location and coordinates of feature points in one embodiment of the installation method for the final joint of an immersed tunnel of the present application. [Figure 4] FIG. 4 is a partial enlarged view of the jack segment portion in FIG. [Diagram 5] FIG. 5 is a structural schematic diagram showing one embodiment of the installation method for the final joint of an immersed tunnel of the present application, in which a first coordinate system is set at the N+3 pipe joint. [Figure 6] FIG. 6 is a structural schematic diagram in which a second coordinate system is set at the N pipe joint in one embodiment of the installation method for the final joint of an immersed tunnel of the present application.

[0021] In the figure, 1, N pipe fitting; 2, N +1 Pipe fittings; 3, N +2 Pipe fittings; 4, N +3 Pipe fittings;5, jack segment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] In the following, the technical methods in the embodiments are clearly and completely described in conjunction with the drawings in the embodiments of the present application. Of course, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without performing creative labor all fall within the scope of protection of the present application.

[0023] In describing the present application, it should be understood that the orientations or positional relationships indicated by the terms "center," "lateral," "longitudinal," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," etc. are based on the orientations or positional relationships shown in the drawings, and are merely intended to facilitate and simplify the description of the present application, and do not indicate or imply that the devices or elements they refer to necessarily have a specific orientation or are constructed and operated in a specific orientation, and should not be construed as limitations on the present application.

[0024] The terms "first" and "second" are for descriptive purposes and cannot be understood to indicate or imply a relative importance or number of technical features being referred to. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0025] It should be explained in the description of this application that, unless otherwise clearly specified and limited, the terms "attached", "coupled" and "connected" should be understood in a broad sense. For example, they may be fixedly connected, detachably connected, or integrally connected. They may also be directly connected, indirectly connected through an intermediate medium, or internally communicated between two elements. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0026] Although the drawings may show a particular order of method steps, it should be understood that the order of steps may differ from that depicted. Also, two or more steps may be performed simultaneously or with partial concurrence. Such variations are at the discretion of the designer. All such variations are within the scope of this disclosure. In the description of this application, "jack segment" refers to "final joint."

[0027] In the construction process of an immersed tunnel, construction is carried out simultaneously from both ends facing each other, and the final joint is installed at the final docking position. The installation method of the final joint of an immersed tunnel in this application mainly refers to the installation method of the final joint and four pipe joints related to the installation of the final joint, and other pipe joint installation methods are not within the scope of this application, so please refer to the prior art.

[0028] As shown in Figure 1, both ends are N pipe fittings 1 and N +3 The ends of the two pipe fittings are opposite each other, and the end of N pipe fitting 1 is connected to N +1 Pipe fitting 2 is installed, N +1 The tip of the pipe fitting 2 is connected to the end of the N pipe fitting 1, +3 N at the end of pipe fitting 4 +2 Pipe fitting 3 is installed, N +2 The tip of pipe fitting 3 is N +3 Connected to the end of the pipe fitting 4, N +1 The end of pipe fitting 2 is N +2 The end of the pipe joint 3 faces the end of the pipe joint 3, and there is a gap between the two. +1 A jack segment 5 is installed in the end of the pipe joint 2, and the jack segment 5 is +1 Pipe fittings 2 to N +2 By pushing in the direction of the pipe joint 3, the jack segment 5 and N +2 Docking with pipe joint 3 is completed, thereby completing the construction of the immersed tunnel.

[0029] As shown in FIG. 2 to FIG. 6, in one exemplary embodiment of the method for installing a final joint of an immersed tunnel of the present application, the method for installing a final joint of an immersed tunnel includes S1 for setting a first coordinate system, S2 for arranging a feature point, and N +2 S3, where the pipe fittings are attached, and N +1 These include S4, which attaches the pipe joints, and S5, which pushes out the jack segments.

[0030] In S1, where the first coordinate system is set, the N +3 A first coordinate system is set at the end of the pipe joint 4 .

[0031] In some embodiments of step S1, the first coordinate system is set in the following manner. As shown in FIG. +3 Set the end of the pipe fitting 4 and N +3 Point o located at the end of pipe 4 joint and N +3 Point o located at the tip of pipe fitting 4 1 Let point o be the origin of the first coordinate system, and then take points o and o 1 Let the line on which is located be the x-axis of the first coordinate system, and let N pass through point o. +3 A straight line perpendicular to the top surface of the pipe fitting 4 is set as the z-axis, and a three-dimensional rectangular coordinate system is set as the first coordinate system. +3 Pipe fitting 4 end to N +3 The direction toward the end of the pipe joint 4 is the positive x-axis direction of the first coordinate system, and when the left-hand rule is used based on the origin o, the x-axis, and the positive x-axis direction of the first coordinate system, the straight line on which the left thumb is located is the y-axis of the first coordinate system, and the direction in which the left thumb is pointing is the positive y-axis direction of the first coordinate system. +3 Control point N at the end of fitting 4 +3 Place D and control point N +3 D is the reference point, and N is the control point. +3 The coordinates of D in the first coordinate system are (x0, y0, z0), and the target point and control point N +3 By measuring the relative position of D, the coordinate position of the target point in the first coordinate system is converted and obtained.

[0032] In the feature point arrangement step S2, as shown in FIG. +1 At the tip end of the pipe fitting 2, there is a piercing point N +1 S, N +1 W is placed, and piercing points DS and DW are placed at the tip ends of the jack segments 5, respectively, and N +2 At the tip end of the pipe joint 3, there is a piercing point N +2 S, N +2 Place W. Piercing points DS, DW, N +1 S, N +1 W, N +2 S, N +2 W is the target point for the final joint installation method, and the penetration points DS, DW, and N +1 S, N +1 W, N +2 S, N+2 Calculate the coordinates of W in the first coordinate system.

[0033] In some embodiments of step S2, the piercing points DS, DW, N +1 S, N +1 W, N +2 S, N +2 W and control point N +3 By measuring the relative position of each of the piercing points DS, DW, and N +1 S, N +1 W, N +2 S, N +2 The coordinates of W in the first coordinate system can be calculated, among which the coordinates of the piercing point DW in the first coordinate system are (x1, y1, z1), the coordinates of the piercing point DS in the first coordinate system are (x2, y2, z2), and the coordinates of the piercing point N +1 The coordinates of S in the first coordinate system are (x3, y3, z3), and the piercing point N +1 The coordinates of W in the first coordinate system are (x4, y4, z4), and the piercing point N +2 The coordinates of S in the first coordinate system are (x5, y5, z5), and the piercing point N +2 W's coordinates in the first coordinate system are (x6, y6, z6).

[0034] N +2 In the pipe fitting installation step S3, the piercing point N +2 S, N +2 Using the coordinates of W in the first coordinate system, +2 Pipe fittings 3 and N +3 Calculate the error of pipe joint 4 and calculate N +2 Pipe fittings 3 and N +3 Based on the error of pipe fitting 4 N +2 Adjust the installation position of the pipe joint 3 and +2 Tip of fitting 3 and N +3 By precisely docking the end of the pipe fitting 4, +2 The installation accuracy of the pipe joint 3 is improved.

[0035] In some embodiments of step S3, N +2 Pipe fittings 3 and N +3 The method for calculating the error of the pipe joint 4 is as follows.

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[0036] N +1 In the pipe fitting installation step S4, +1 The tip of the pipe fitting 2 is precisely docked with the end of the N pipe fitting 1, which has already been installed. +1 Pipe fitting 2 is attached N +2 Since it is necessary to connect to fitting 3, N +1 Pipe fittings 2 and N +2 If the error in fitting 3 is too large, N +1 Pipe fitting 2 is N +2 It is not possible to precisely dock with the pipe joint 3. Therefore, the piercing point N +1 S, N +1 Using the coordinates of W in the first coordinate system, +1 Pipe fittings 2 and N +2 By calculating the error of pipe fitting 3, N +1 Adjust the installation position of the pipe joint 2, thereby +1 Pipe fittings 2 and N +2 Ensure that the tolerance of the pipe joint 3 meets the requirements. It should be noted that N +1 The end of pipe fitting 2 is N +2 It is installed near the end of the pipe fitting 3, and there is a gap between the two.

[0037] In some embodiments of step S4, N +1 Pipe fittings 2 and N +2 The calculation method for the error of the pipe joint 3 is as follows.

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[0038] In the above installation method of the final joint of the immersed tunnel, the jack segment 5 is N +1 Installed in pipe joint 2 and N +1 After the installation of pipe fitting 2 is completed, +1 Pushed out from inside the pipe joint 2 +2 It should be noted that when the jack segment 5 is pushed out, the N +1 There is a fairly large error between the pipe joint 2 and the jack segment or between the jack segment and N +2 A fairly large error in the pipe joint 3 causes the N of the jack segment 5 +1 Pipe fittings 2 and N +2 This may affect the connection effect with respect to the pipe joint 3. Therefore, in the jack segment extrusion step S5, the jack segment 5 and N are connected to each other by using the coordinates of the penetration points DS and / or DW in the first coordinate system. +1 Pipe Fitting 2, N +2 Calculate the error with pipe fitting 3, and N +1 The jack segment 5 installed inside the pipe joint 2 is N +2 By inducing the jack segment to be pushed toward the pipe joint 3, +2 The end of the pipe joint 3 is precisely docked. It should be further explained that when the jack segment 5 is pushed out, the end of the jack segment 5 and the N +2 The end of the pipe joint 3 is docked, but the tip of the jack segment 5 is still N+1 It is located within two pipe joints.

[0039] In some embodiments of step S5, the jack segments 5 and N are located using the coordinates of the penetration point DW in the first coordinate system. +2 Calculate the error of the pipe joint 3, and use the coordinates of the piercing point DS in the first coordinate system to find the jack segment 5 and N +1 Calculate the error of pipe joint 2. Specifically, jack segment 5 and N +2 The calculation method for the error of the pipe joint 3 is as follows.

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[0040] In some other embodiments of step S5, the coordinates of the penetration points DW and DS in the first coordinate system are used to determine the distance between the jack segments 5 and N. +1 Pipe Fitting 2, N +2Calculate the error between the jack segment 5 and the pipe joint 3. +2 The calculation method for the error of the pipe joint 3 is as follows.

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[0041] In actual construction, first, refer to N pipe fitting 1 that has already been installed and +1 Fitting 2 must be installed, N +1 In order to ensure the installation accuracy of the pipe joint 2 and the N pipe joint 1, some embodiments of the installation method for the final joint of the immersed tunnel further arrange a control point ND at the end of the N pipe joint 1, and set a second coordinate system at the end of the N pipe joint 1. In the feature point arrangement step S2, the control point ND is used as the reference point, and the piercing point N +1 S, N +1 Measure the relative position of each point W and the piercing point N +1 S, N +1Converting to coordinates in the second coordinate system of W, N +1 The error between the pipe joint 2 and the N pipe joint 1 is calculated, and the second coordinate is set in S10. +1 Due to the error between fitting 2 and fitting 1, +1 Adjust the mounting position of the pipe joint 2.

[0042] In some embodiments of step S10, as shown in FIG. 6, the second coordinate system setting step is performed by setting a point o 2 and point o located at the tip of N fitting 1 2 ´ and point o 2 is the origin of the second coordinate system, and point o 2 and points 2 Let the line on which ´ is located be the x-axis of the second coordinate system, and let point o 2 a straight line passing through and perpendicular to the top surface of the N pipe fitting is taken as the z-axis, a three-dimensional rectangular coordinate system is set as the second coordinate system, and the direction from the tip of the N pipe fitting 1 to the end of the N pipe fitting 1 is taken as the positive x-axis direction of the first coordinate system. Based on the origin o, x-axis, and positive x-axis direction of the second coordinate system, and using the left-hand rule, the straight line on which the left thumb is located is the y-axis of the second coordinate system, and the direction in which the left thumb is pointing is the positive y-axis direction of the second coordinate system.

[0043] N +1 In some embodiments of the pipe fitting step S4, the coordinates of the control point ND in the second coordinate system are (x7, y7, z7), and the piercing point N +1 S, N +1 The coordinates of W in the second coordinate system are (x3´, y3´, z3´) and (x4´, y4´, z4´), respectively, and N +1 The calculation method for the error of pipe fitting 2 and N pipe fitting 1 is as follows.

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[0044] In some embodiments of the method for installing the final joint of an immersed tunnel, the method further includes a first coordinate system accuracy verification step S40, and the piercing point N +2 S, N +2 Measure the relative positions of W and control point ND, and pierce point N +2 S, N +2 Convert W to the coordinates in the second coordinate system, and use the second coordinate system to find N +1 Pipe fittings 2 and N +2 Calculate the error of the pipe joint 3 and calculate N using the second coordinate system. +1 Pipe fittings 2 and N +2 The error of pipe joint 3 is calculated using the first coordinate system. +1 Pipe fittings 2 and N +2 By comparing with the error of pipe joint 3, N +1 Pipe fittings 2 and N +2 The accuracy of calculating the error of the pipe fitting 3 is verified.

[0045] In some embodiments of step S40, the piercing point N +2 S, N +2 The coordinates of W in the second coordinate system are (x5´, y5´, z5´) and (x6´, y6´, z6´), respectively. +1 Pipe fittings 2 and N +2 The method for calculating the error of the pipe fitting 3 is as follows.

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[0046] In the above method of installing the final joint of the immersed tunnel, +3 Set the first coordinate system to the pipe joint and N +2 At the tip end of the pipe fitting, there is a piercing point N +2 S, N +2 Place W and pierce point N +2 S, N +2 Using the coordinates of W in the first coordinate system, +2 Pipe Fittings and N +3 By calculating the error of the pipe joint, N +2 Guides the installation of pipe fittings. N +1 At the tip end of the pipe fitting, there is a piercing point N +1 S, N +1 Place W and pierce point N +1 S, N +1 Using the coordinates of W in the first coordinate system, +1 Pipe Fittings and N +2 By calculating the error of the pipe joint, N +1 By guiding the installation of the pipe joint and locating the penetration points DS and DW on the jack segment, the jack segment and the N +1 Pipe joint error, jack segment and N +2 By calculating the error of the pipe joint and adjusting the extrusion direction of the jack segment, the jack segment can be precisely adjusted. +2 It can be docked to the end of a pipe fitting. Example 1

[0047] In the following, control point N +3The coordinates of D in the first coordinate system are (x0, y0, z0), the coordinates of piercing point DW in the first coordinate system are (x1, y1, z1), the coordinates of piercing point DS in the first coordinate system are (x2, y2, z2), and the coordinates of piercing point N +1 The coordinates of S in the first coordinate system are (x3, y3, z3), and the piercing point N +1 The coordinates of W in the first coordinate system are (x4, y4, z4), and the piercing point N +2 The coordinates of S in the first coordinate system are (x5, y5, z5), and the piercing point N +2 The coordinates of W in the first coordinate system are (x6, y6, z6), the coordinates of the control point ND in the second coordinate system are (x7, y7, z7), and the piercing point N +1 S, N +1 Taking the coordinates of W in the second coordinate system as (x3', y3', z3') and (x4', y4', z4') respectively as an example, the above-mentioned installation method of the final joint of the immersed tunnel is introduced in detail, and the above-mentioned installation method of the final joint of the immersed tunnel includes the following steps: S1 sets the first coordinate system. N +3 Point o located at the end of pipe joint 4 and N +3 Point o located at the tip of pipe fitting 4 1 Let point o be the origin of the first coordinate system, and then take points o and o 1 Let the line on which is located be the x-axis of the first coordinate system, and let N pass through point o. +3 A straight line perpendicular to the top surface of the pipe joint 4 is set as the z-axis, and a three-dimensional rectangular coordinate system is set as the first coordinate system. +3 Pipe fitting 4 end to N +3 The direction toward the end of the pipe fitting 4 is defined as the positive x-axis direction of the first coordinate system, and using the left-hand rule based on the origin o, x-axis, and positive x-axis direction of the first coordinate system, the straight line on which the left thumb is located is the y-axis of the first coordinate system, and the direction in which the left thumb is pointing is the positive y-axis direction of the first coordinate system.

[0048] S10 sets up the second coordinate system. Point o located at the end of N fitting 1 2 and point o located at the tip of N fitting 1 2 ´ and point o 2 is the origin of the second coordinate system, and point o 2 and points 2 Let the line on which ´ is located be the x-axis of the second coordinate system, and let point o 2The straight line passing through and perpendicular to the top surface of the N fitting 1 is taken as the z-axis, and a three-dimensional rectangular coordinate system is set as the second coordinate system. The direction from the end of the N fitting 1 to the tip of the N fitting 1 is taken as the positive x-axis direction of the first coordinate system, and the origin o of the second coordinate system is taken as the 2 , and using the left-hand rule based on the x-axis and the positive x-axis direction, the straight line on which the left thumb is located is the y-axis of the second coordinate system, and the direction in which the left thumb is pointing is the positive y-axis direction of the second coordinate system.

[0049] S2 to locate feature points. N +1 At the tip end of the pipe fitting 2, there is a piercing point N +1 S, N +1 W is placed, and piercing points DS and DW are placed at the tip end of the jack segment 5, and N +2 At the tip end of the pipe joint 3, there is a piercing point N +2 S, N +2 Place W and N +3 Control point N at the end of fitting 4 +3 D is placed, and a control point ND is placed at the end of N pipe fitting 1, and a control point N +3 With D as the reference point, the coordinates (x1, y1, z1) of the piercing point DW in the first coordinate system, the coordinates (x2, y2, z2) of the piercing point DS in the first coordinate system, and the coordinates of the piercing point N +1 Coordinates (x3, y3, z3) of S in the first coordinate system, piercing point N +1 Coordinates (x4, y4, z4) in the first coordinate system of W, piercing point N +2 Coordinates (x5, y5, z5) of S in the first coordinate system, piercing point N +2 Calculate the coordinates (x6, y6, z6) of W in the first coordinate system. +3 D's coordinates in the first coordinate system are (x0, y0, z0).

[0050] N +2 S3 where the pipe fitting is attached. Piercing point N +2 S, N +2 Using the coordinates in the first coordinate system of W, +2 Pipe fittings 3 and N +3 Error Δx of fitting 4 1 , Δy 1 and Δz 1 Calculate and Δx 1 , Δy1 and Δz 1 Compare with the actual construction tolerance, Δx 1 , Δy 1 and Δz 1 If both are within the construction tolerance, N +2 Fit the pipe joint 3 in place and measure Δx 1 and / or Δy 1 and / or Δz 1 If exceeds the construction tolerance, Δx 1 , Δy 1 and Δz 1 N until all are within the construction tolerance +2 Adjust the installation position of the pipe joint 3 to N +2 Pipe fittings 3 and N +3 The pipe fitting 4 is precisely docked.

[0051] N +1 S4 for installing pipe fittings. N +1 Pipe joint 2 is sunk to the bottom of the sea, and N +1 The tip of the pipe fitting 2 is precisely docked to the end of the already installed N pipe fitting 1, and the second coordinate system is used to calculate the N +1 Error Δx between fitting 2 and N fitting 1 5 , Δy 5 and Δz 5 Calculate N using the coordinates of the first coordinate system. +1 Pipe fittings 2 and N +2 Error Δx of fitting 3 2 , Δy 2 and Δz 2 Calculate Δx 2 , Δy 2 , Δz 2 , Δx 5 , Δy 5 and Δz 5 Compare each with the actual construction tolerance and Δx 2 , Δy 2 , Δz 2 , Δx 5 , Δy 5 and Δz 5 If both are within the construction tolerance, N +1 Fit the fitting 2 in place and measure Δx 2 and / or Δy 2 and / or Δz2 and / or Δx 5 and / or Δy 5 and / or Δz 5 If exceeds the construction tolerance, N +1 The installation position of the pipe fitting 2 is Δx 2 , Δy 2 , Δz 2 , Δx 5 , Δy 5 and Δz 5 Adjust until all are within the construction tolerance, and then +1 The pipe fitting 2 is precisely attached.

[0052] S40 verifies the accuracy of the first coordinate system. +1 Pipe fittings 2 and N +2 Error Δx of fitting 3 6 , Δy 6 and Δz 6 Calculate and Δx 2 , Δy 2 and Δz 2 and Δx 6 , Δy 6 and Δz 6 Compare and Δx 2 , Δy 2 and Δz 2 and Δx 6 , Δy 6 and Δz 6 If the difference is within the tolerance, the accuracy of the first coordinate system is high, and Δx 2 and / or Δy 2 and / or Δz 2 and Δx 6 and / or Δy 6 and / or Δz 6 If the difference exceeds the allowable error range, the accuracy of the first coordinate system and / or the second coordinate system is significantly low, so the first coordinate system and / or the second coordinate system must be reset to ensure the accuracy of the first coordinate system.

[0053] S5 pushes out the jack segment. Using the coordinates of the penetration points DS and DW in the first coordinate system, jack segments 5 and N +1 Pipe Fitting 2, N +2Calculate the error of pipe joint 3. Jack segment 5 and N +2 The error of fitting 3 is Δx 3 , Δy 3 , Δz 3 and jack segments 5 and N +1 The error of fitting 2 is Δx 4 , Δy 4 , Δz 4 and Δx 3 , Δy 3 , Δz 3 , Δx 4 , Δy 4 , Δz 4 Compare each with the construction tolerance and Δx 3 , Δy 3 , Δz 3 , Δx 4 , Δy 4 , Δz 4 If both are within the error tolerance, push out jack segment 5 to N +2 Dock it with the end of the pipe joint 3, and Δx 3 and / or Δy 3 and / or Δz 3 and / or Δx 4 and / or Δy 4 and / or Δz 4 If exceeds the error tolerance, Δx 3 , Δy 3 , Δz 3 , Δx 4 , Δy 4 , Δz 4 Adjust the position of jack segment 5 until all are within the error tolerance, and then jack segment 5 and N +2 The ends of the pipe fittings 3 are precisely docked.

[0054] It should be noted that the range of construction tolerances is a well-known common knowledge in this field, and therefore will not be described here repeatedly.

[0055] In the above method of installing the final joint of the immersed tunnel, the penetration point N +2 S, N +2 Using the coordinates in the first coordinate system of W, +2 Pipe Fittings and N+3 By calculating the error of the pipe joint, N +2 Adjust the fitting position and +2 Pipe Fittings and N +3 Ensures accurate installation of pipe fittings and penetration points N +1 S, N +1 Using the coordinates of W in the second coordinate system, +1 By calculating the error between the pipe fitting and the N pipe fitting, +1 Adjust the fitting position and +1 Ensures accurate installation of pipe fittings and N pipe fittings, and through point N +1 S, N +1 W, N +2 S, N +2 Using the coordinates in the first coordinate system of W, +1 Pipe Fittings and N +2 By calculating the error of the pipe joint, N +1 Adjust the fitting tip installation position and +1 End of pipe fitting and N +2 Ensure that the ends of the pipe joints are precisely opposed and placed close to each other, so that the N +2 Precise docking with pipe fittings, piercing points DS, DW, N +1 S, N +1 W, N +2 S, N +2 Using the coordinates in the first coordinate system of W, the jack segment and N +1 Pipe Fittings, N +2 The error of the pipe joint is calculated and the extrusion direction of the jack segment is adjusted to N +2 It can be precisely docked with the pipe joint.

[0056] Finally, it should be noted that each embodiment in this specification is described progressively, and the emphasis in each embodiment is on the differences from the other embodiments, and that identical or similar parts between the embodiments can be mutually referenced.

[0057] The above examples are for illustrating the technical solutions of the present application, but are not intended to limit the same. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the present application may still be modified or equivalently substituted for some of the technical features, which do not depart from the spirit of the technical solutions of the present application, and all of them are within the scope of the technical solutions claimed in the present application.

Claims

1. In the installation method of the final joint of the submerged tunnel, Installation has already been completed ＋３ a first coordinate system setting step of setting a first coordinate system at an end of the pipe joint; N ＋１ Each end of the pipe joint has a piercing point N. ＋１ S.N. ＋１ Place W, place penetration points DS and DW on the jack segment, and N ＋２ Each end of the pipe joint has a piercing point N. ＋２ S.N. ＋２ W is placed, and piercing points DS, DW, N ＋１ S.N. ＋１ W.N. ＋２ S.N. ＋２ a feature point arrangement step of calculating coordinates of W in the first coordinate system; The piercing point N ＋２ S.N. ＋２ Using the coordinates of W in the first coordinate system, ＋２ Pipe joint and the above N ＋３ Calculate the error of the pipe joint, ＋２ By adjusting the mounting position of the pipe joint, ＋２ The tip of the pipe joint and the N ＋３ N for precise docking of pipe joint ends ＋２ a pipe fitting mounting step; The N ＋１ The tip of the pipe joint is precisely docked with the end of the already installed N pipe joint, and the piercing point N ＋１ S.N. ＋１ Using the coordinates of W in the first coordinate system, ＋１ Pipe joint and the above N ＋２ Calculate the error of the pipe joint, ＋１ Adjust the fitting position of the pipe joint to the above N ＋１ The end of the pipe joint is ＋２ N installed close to the end of the pipe joint ＋１ a pipe fitting mounting step; The jack segment and the N are connected to each other by using the coordinates of the piercing point DS and / or the piercing point DW in the first coordinate system. ＋１ Pipe joint, said N ＋２ Calculate the error of each pipe joint, and ＋１ The jack segment installed inside the pipe joint is ＋２ By adjusting the direction of pushing toward the pipe joint, the jack segment and the N ＋２ and a jack segment extrusion step for precisely docking the end of the pipe joint. How to install the final joint of a submerged tunnel.

2. In the feature point arrangement step, ＋３ Control point N at the end of the pipe joint ＋３ D is placed, and the control point N ＋３ With D as the reference point, the piercing points DS, DW, and N ＋１ S.N. ＋１ W.N. ＋２ S.N. ＋２ W and the control point N ＋３ The relative positions of the piercing points DS, DW, and N are measured, ＋１ S.N. ＋１ W.N. ＋２ S.N. ＋２ and converting the control point N ＋３ The coordinates of the piercing point D in the first coordinate system are (x0, y0, z0), the coordinates of the piercing point DW in the first coordinate system are (x1, y1, z1), the coordinates of the piercing point DS in the first coordinate system are (x2, y2, z2), and the coordinates of the piercing point N ＋１ The coordinates of S in the first coordinate system are (x3, y3, z3), and the piercing point N ＋１ The coordinates of W in the first coordinate system are (x4, y4, z4), and the piercing point N ＋２ The coordinates of S in the first coordinate system are (x5, y5, z5), and the piercing point N ＋２ The method for installing a final joint of an immersed tunnel according to claim 1, characterized in that the coordinates of W in the first coordinate system are (x6, y6, z6).

3. The N ＋２ In the pipe joint mounting step, ＋２ Pipe joint and the above N ＋３ The calculation method for pipe fitting error is as follows: [0010] Δx １ is the above N ＋２ Pipe joint and the above N ＋３ is the error in the x-axis direction of the pipe joint, and Δy １ is the above N ＋２ Pipe fittings and N ＋３ is the error in the y-axis direction of the pipe joint, and Δz １ is the above N ＋２ Pipe joint and the above N ＋３ The error is in the z-axis direction of the pipe joint. A method for installing a final joint for an immersed tunnel as claimed in claim 2.

4. The N ＋１ In the pipe joint mounting step, ＋１ Pipe joint and the above N ＋２ The calculation method for pipe fitting error is as follows: [0025] Δx ２ is the N ＋１ Pipe joint and the above N ＋２ is the error in the x-axis direction of the pipe joint, ２ is N ＋１ Pipe fittings and N ＋２ is the error in the y-axis direction with the pipe joint, and Δz ２ is the N ＋１ Pipe joint and the above N ＋２ The error is in the z-axis direction of the pipe joint. A method for installing a final joint for an immersed tunnel as claimed in claim 2.

5. In the jack segment pushing-out step, ＋２ The calculation method for pipe fitting error is as follows: [0030] Δx ３ is the jack segment and the N ＋２ is the error in the x-axis direction of the pipe joint, and Δy ３ is the jack segment and N ＋２ is the error in the y-axis direction of the pipe joint, and Δz ３ is the jack segment and the N ＋２ is the error in the z-axis direction of the pipe joint, The jack segment and the N ＋１ The calculation method for pipe fitting error is as follows: [0045] Δx ４ is the jack segment and the N ＋１ is the error in the x-axis direction of the pipe joint, and Δy ４ is the jack segment and N ＋１ is the error in the y-axis direction of the pipe joint, and Δz ４ is the jack segment and the N ＋１ The error is in the z-axis direction of the pipe joint. A method for installing a final joint for an immersed tunnel as claimed in claim 2.

6. In the jack segment pushing-out step, ＋２ The calculation method for pipe fitting error is as follows: [0050] Δx ３ ' denotes the jack segment and the N ＋２ is the error in the x-axis direction of the pipe joint, and Δy ３ ' is the jack segment and N ＋２ is the error in the y-axis direction of the pipe joint, and Δz ３ ' denotes the jack segment and the N ＋２ is the error in the z-axis direction of the pipe joint, The jack segment and the N ＋１ The calculation method for pipe fitting error is as follows: [006] Δx ４ ' denotes the jack segment and the N ＋１ is the error in the x-axis direction of the pipe joint, and Δy ４ ' is the jack segment and N ＋１ is the error in the y-axis direction of the pipe joint, and Δz ４ ' denotes the jack segment and the N ＋１ The error is in the z-axis direction of the pipe joint. A method for installing a final joint for an immersed tunnel as claimed in claim 2.

7. The method further includes a second coordinate system setting step of setting a control point ND at the end of the N pipe joint and setting a second coordinate system at the end of the N pipe joint, and the feature point setting step further includes a second coordinate system setting step of setting the control point ND as a reference point and the piercing point N ＋１ S.N. ＋１ The positions of the piercing points N ＋１ S.N. ＋１ By converting the coordinates of N in the second coordinate system, ＋１ The method for installing a final joint for an immersed tunnel according to claim 1, further comprising calculating an error between the pipe joint and the N pipe joint.

8. The coordinates of the control point ND in the second coordinate system are (x7, y7, z7), and the piercing point N ＋１ S.N. ＋１ The coordinates of W in the second coordinate system are (x3', y3', z3') and (x4', y4', z4'), respectively. ＋１ In the pipe joint mounting step, ＋１ The calculation method of the error between the pipe joint and the N pipe joint is as follows: [0070] Δx ５ is the above N ＋１ is the error in the x-axis direction between the pipe joint and the N pipe joint, and Δy ５ is the above N ＋１ is the error in the y-axis direction between the pipe joint and the N pipe joint, and Δz ５ is the above N ＋１ The error is in the z-axis direction between the pipe joint and the N pipe joint. A method for installing a final joint for an immersed tunnel as claimed in claim 7.

9. The piercing point N ＋２ S.N. ＋２ The relative positions of W and the control point ND are measured, and the piercing point N ＋２ S.N. ＋２ W into coordinates in the second coordinate system, and N ＋１ Pipe fittings and N ＋２ Calculate the error of the pipe joint, and ＋１ Pipe joint and the above N ＋２ By comparing the error obtained using the first coordinate system of the pipe joint, the N ＋１ Pipe joint and the above N ＋２ The method for installing a final joint of an immersed tunnel according to claim 8, further comprising a first coordinate system accuracy verification step for verifying the accuracy in calculating the error of the pipe joint.

10. The piercing point N ＋２ S.N. ＋２ The coordinates of W in the second coordinate system are (x5', y5', z5') and (x6', y6', z6'), respectively. In the first coordinate system accuracy verification step, the second coordinate system is used to verify the accuracy of N ＋１ Pipe joint and the above N ＋２ The method for calculating the error of pipe fittings is as follows: [0080] Δx ６ is the N in the second coordinate system ＋１ Pipe joint and the above N ＋２ is the error in the x-axis direction of the pipe joint, and Δy ６ is the N in the second coordinate system ＋１ Pipe fittings and N ＋２ is the error in the y-axis direction of the pipe joint, and Δz ６ is the N in the second coordinate system ＋１ Pipe joint and the above N ＋２ is the error in the z-axis direction of the pipe joint, Δx ２ and Δx ６ The difference between ２ and Δy ６ The difference between ２ and Δz ６ By comparing the difference between ＋１ Pipe joint and the above N ＋２ The present invention is characterized by verifying the accuracy in calculating the error of a pipe joint. A method for installing a final joint for an immersed tunnel according to claim 9.

11. In the first coordinate system setting step, ＋３ Point o located at the end of the pipe joint and point N ＋３ Point o located at the tip of the pipe joint １ The point o is taken as the origin of the first coordinate system, and the points o and o are taken as the origin of the first coordinate system. １ The straight line on which N is located is set as the x-axis of the first coordinate system, and the straight line passing through the point o is set as the x-axis of the first coordinate system. ＋３ A method for installing a final joint for an immersed tunnel as described in claim 1, characterized in that a three-dimensional Cartesian coordinate system is set with a straight line perpendicular to the top surface of the pipe joint as the z-axis, and this is used as the first coordinate system.

12. In the first coordinate system setting step, ＋３ From the tip of the pipe joint ＋３ The method for installing an immersed tunnel final joint as described in claim 11, characterized in that the direction toward the end of the pipe joint is the positive x-axis direction of the first coordinate system, and based on the origin o, x-axis and positive x-axis direction of the first coordinate system, using the left-hand rule, the straight line on which the left thumb is located is the y-axis of the first coordinate system, and the direction in which the left thumb points is the positive y-axis direction of the first coordinate system.

13. The installation method for an immersed tunnel final joint as described in claim 7, characterized in that the second coordinate system setting step includes taking point o2 located at the end of the N pipe joint and point o2' located at the tip of the N pipe joint, setting point o2 as the origin of the second coordinate system, setting a straight line on which point o2 and point o2' are located as the x-axis of the second coordinate system, and setting a straight line passing through point o2 and perpendicular to the top surface of the N pipe joint as the z-axis, thereby setting a three-dimensional rectangular coordinate system as the second coordinate system.

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