A rotary shield tunneling contact measuring support

Abstract

The application relates to a rotary shield connection measuring support. The rotary shield connection measuring support comprises a vertical stand column vertically installed on a base, a mounting sleeve installed on the top of the vertical stand column, a turnbuckle joint rotatably installed in the mounting sleeve, a connecting disc arranged in the middle of the turnbuckle joint, an anti-skid nut arranged on the mounting sleeve and penetrating into the mounting sleeve, a fastening bolt installed on the anti-skid nut and used for fixing the turnbuckle joint in the mounting sleeve by rotating the fastening bolt, a horizontal column vertically installed on the turnbuckle joint above the connecting disc and provided with a galvanized bolt for installing a heavy hammer line at the front end of the horizontal column. The scheme can be installed at the bottom of a shaft side wall through the base, the mounting sleeve and the turnbuckle joint are used to drive the horizontal column to rotate to a proper position to realize a measuring work, and the scheme is suitable for measuring the angle and distance transmitted from a shield tunnel construction to the bottom of a shaft.

Description

Technical Field

[0001] This application relates to the field of measurement support technology, and in particular to a rotary shield tunneling connection measurement support. Background Technology

[0002] Shield tunneling surveying is widely used in urban subways, large-scale water diversion projects, and urban pipeline network construction. Its surveying methods are closely related to, yet differ significantly from, traditional surveying methods. Besides the necessary preliminary surveying work, and considering the characteristics of shield tunneling, the errors affecting the completion surveying of subway shield tunnels mainly come from four surveying processes: ground control surveying, shaft connection surveying, underground traverse surveying, and shield attitude measurement. However, when facing long-distance, deep shaft shield surveying operations, the main source of error is the shaft connection surveying, which mainly involves single-shaft orientation and two-shaft orientation. The quality of the connection surveying results directly affects the tunnel's excavation direction, the quality of segment assembly, and the axial deviation of the completed tunnel, making it crucial for controlling tunnel accuracy.

[0003] Currently, given the complex and ever-changing construction environment, when the conditions in the construction area meet the requirements for either two-well or one-well orientation, one-well or two-well orientation must be adopted. A plumb line is suspended in each of the two vertical shafts on the surface. The coordinate azimuth angles of the two plumb lines on the surface remain constant. The coordinates of these two plumb lines are determined through ground and underground surveys, and the coordinate azimuth angles of the underground baseline are calculated to control the traverse network inside the tunnel.

[0004] However, traditional surveying supports for projecting azimuth into the shaft consist of simple steel pipes suspended from the inner wall of the shaft. These supports are not only weak and difficult to install accurately, but also require surveyors to wear safety ropes and work near the edge to adjust the angle of the suspended steel pipes multiple times. Furthermore, the single suspended steel pipe is prone to bending under stress, which greatly reduces the accuracy of the measurements and affects the accuracy of the control network inside the tunnel. This causes the guidance system to deviate from the predetermined trajectory, causing great inconvenience to the surveying work. Rework and repeated measurements are required to improve the accuracy of the traverse network inside the tunnel, which seriously affects the measurement milestones and the tunnel construction progress. Utility Model Content

[0005] To address or partially address the problems existing in related technologies, this application provides a rotary shield tunneling connection measurement support, which aims to solve the problem that the cantilevered connection measurement steel pipe is prone to bending under stress, affecting the accuracy of the control network inside the tunnel.

[0006] This application provides a rotary shield tunneling connection measurement support, comprising:

[0007] Base, uprights, mounting sleeves, anti-slip nuts, fastening bolts, disc-type connectors, connecting discs, horizontal bars, galvanized bolts, and counterweight lines;

[0008] The upright is vertically installed on the base, the mounting sleeve is installed on the top of the upright, the disc-type connector is rotatably installed in the mounting sleeve, the disc-type connector is provided with a connecting disc in the middle, the mounting sleeve is provided with an anti-slip nut, the anti-slip nut passes through the mounting sleeve, the fastening bolt is installed on the anti-slip nut, and the disc-type connector is fixed in the mounting sleeve by rotating the fastening bolt;

[0009] The horizontal bar is vertically installed on the disc-type connector above the connecting plate, and the front end of the horizontal bar is equipped with galvanized bolts for installing the counterweight line.

[0010] Optionally, in some embodiments, the rotary shield tunneling connection measurement support further includes:

[0011] Tension bracing; one end of the tension bracing is installed on the top of the disc-lock joint, and the other end is installed on the front end of the horizontal bar to improve the stability of the horizontal bar.

[0012] Optionally, in some embodiments, the fastening bolt is provided with a rotating rod, which allows the fastening bolt to be manually rotated to quickly fix the disc-type joint.

[0013] Optionally, in some embodiments, a galvanized bolt is horizontally installed on each side of the front end of the horizontal bar, and the two galvanized bolts are not in the same straight line.

[0014] The technical solution provided in this application may include the following beneficial effects:

[0015] Installed at the bottom of the shaft sidewall via a base, and using a mounting sleeve and disc-type connector, the horizontal bar is rotated to the appropriate position to perform measurement work. It is suitable for measuring angles and distances to the bottom of the shaft during shield tunnel construction. It is convenient, practical, reliable, rotatable, highly accurate, stable, and detachable. It avoids the risk of falls from heights caused by working near edges or at heights, and reduces the tedious process of adjusting angles multiple times during measurement work, greatly improving the convenience of communication and measurement.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram of the structure of the rotary shield tunneling connection measurement support shown in the embodiments of this application.

[0019] Attached reference numerals: 1-base, 2-upright pole, 3-installation sleeve, 4-anti-slip nut, 5-fastening bolt, 6-disc-type connector, 7-connecting disc, 8-tensile brace, 9-horizontal bar, 10-galvanized bolt, 11-pump line. Detailed Implementation

[0020] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0021] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Currently, facing the complex and ever-changing construction environment, when the conditions of the construction area meet the requirements for either two-well or one-well orientation, one-well or two-well orientation must be adopted. A plumb line is suspended from each of the two vertical shafts on the ground. The coordinate azimuth angles of the two plumb lines on the ground remain constant. The coordinates of these two plumb lines are determined through ground and underground measurements, and the coordinate azimuth angle of the underground baseline is calculated to control the traverse network within the tunnel. However, traditional surveying supports for projecting azimuth downwards consist of simple steel pipes cantilevered from the inner wall of the shafts. These supports are not only weak and difficult to install accurately, requiring surveyors to wear safety ropes and work near the edge, repeatedly adjusting the cantilever angle. Furthermore, the single steel pipe cantilever is prone to bending under stress, significantly reducing measurement accuracy and affecting the precision of the control network within the tunnel. This causes the guidance system to deviate from its predetermined trajectory, greatly inconveniencing the surveying work and requiring rework and repeated measurements to improve the accuracy of the traverse network within the tunnel, severely impacting the measurement milestones and the tunnel construction progress.

[0025] To address the aforementioned issues, this application provides a rotary shield tunneling connection measurement bracket. This bracket can be installed at the bottom of the shaft sidewall via a base. Using a mounting sleeve and disc-type connector, it rotates a horizontal bar to the appropriate position to perform measurement work. It is suitable for measuring angles and distances from the bottom of the shaft during shield tunnel construction. It is convenient, practical, reliable, rotatable, highly accurate, stable, and detachable. It avoids the risk of falls from heights associated with working near edges or at heights, and reduces the tedious process of repeatedly adjusting angles during measurement, greatly improving the convenience of connection measurement.

[0026] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of the rotary shield tunneling connection measurement support shown in the embodiments of this application.

[0028] See Figure 1 A rotary shield tunneling connection measurement support, comprising:

[0029] 1. Base; 2. Upright pole; 3. Mounting sleeve; 4. Anti-slip nut; 5. Fastening bolt; 6. Disc-type connector; 7. Connecting disc; 8. Tension brace; 9. Horizontal bar; 10. Galvanized bolt; and 11. Counterweight line.

[0030] The base 1 is made of 10mm thick steel plate, the uprights 2 and horizontal bars 9 are cut from galvanized scaffolding, and the tensile bracing is cut from φ12 threaded steel. The uprights 2 are vertically welded to the base 1, and the base 1 has through holes at its four corners for fixing to the ground. The mounting sleeve 3 is welded to the top of the uprights 2, and the disc-type connector 6 is inserted and removed from the mounting sleeve 3. The disc-type connector 6 has a connecting plate 7 in the middle, which acts as a baffle. The mounting sleeve 3 is equipped with an anti-slip nut 4, which extends into the mounting sleeve 3. The fastening bolt 5 is installed on the anti-slip nut 4, and the disc-type connector 6 is fixed in the mounting sleeve 3 by rotating the fastening bolt 5. The fastening bolt 5 is equipped with a rotating rod, which allows manual rotation of the fastening bolt 5 to quickly fix or loosen the disc-type connector 6.

[0031] The horizontal bar 9 is vertically installed on the disc-type connector 6 above the connecting plate 7. A galvanized bolt 10 is horizontally installed on each side of the front end of the horizontal bar 9. The two galvanized bolts 10 are not aligned. The galvanized bolts 10 at the front end of the horizontal bar 9 are used to install the counterweight line 11. One end of the tensile brace 8 is installed on the top of the disc-type connector 6, and the other end is installed on the front end of the horizontal bar 9, improving the stability of the horizontal bar 9.

[0032] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A rotary shield tunneling connection measurement support, characterized in that, include: Base (1), upright (2), mounting sleeve (3), anti-slip nut (4), fastening bolt (5), disc-type connector (6), connecting plate (7), horizontal bar (9), galvanized bolt (10) and counterweight line (11); The upright (2) is vertically installed on the base (1), the mounting sleeve (3) is installed on the top of the upright (2), the disc-type connector (6) is rotatably installed in the mounting sleeve (3), the disc-type connector (6) is provided with a connecting disc (7) in the middle, the mounting sleeve (3) is provided with an anti-slip nut (4), the anti-slip nut (4) extends into the mounting sleeve (3), the fastening bolt (5) is installed on the anti-slip nut (4), and the disc-type connector (6) is fixed in the mounting sleeve (3) by rotating the fastening bolt (5); The horizontal bar (9) is vertically installed on the disc-type connector (6) above the connecting plate (7), and the front end of the horizontal bar (9) is provided with galvanized bolts (10) for installing the counterweight line (11).

2. The rotary shield tunneling connection measurement support according to claim 1, characterized in that, Also includes: Tension bracing (8); One end of the anti-tensile diagonal brace (8) is installed on the top of the disc-lock joint (6), and the other end is installed on the front end of the horizontal bar (9) to improve the stability of the horizontal bar (9).

3. The rotary shield tunneling connection measurement support according to claim 1, characterized in that: The fastening bolt (5) is equipped with a rotating rod, which allows the fastening bolt (5) to be manually rotated to quickly fix the disc-type connector (6).

4. The rotary shield tunneling connection measurement support according to claim 1, characterized in that: A galvanized bolt (10) is horizontally installed on the left and right sides of the front end of the horizontal bar (9), and the two galvanized bolts (10) are not on the same straight line.

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