Prefabricated substructure installation space posture monitoring equipment and control method

Abstract

The present invention provides a prefabricated assembled lower structure installation space posture monitoring device and control method, wherein the monitoring device includes a bracket, a high-precision angle sensor, a high-precision biaxial inclinometer, a prism, a data acquisition box, an antenna, a measuring robot, and a PC terminal. The bracket is installed on the top surface of the prefabricated pipe pile, and a prism is installed on the top of the bracket. A data acquisition box and an antenna are also installed on the bracket. The data acquisition box is connected to the PC terminal through the antenna. The data acquisition box is also connected to the high-precision angle sensor and the high-precision biaxial inclinometer respectively. The high-precision angle sensor and the high-precision biaxial inclinometer are both installed on the top surface of the prefabricated pipe pile and are arranged along the azimuth line of the prefabricated pipe pile. The measuring robot is placed on the control point of the construction site, and collects data through the prism on the bracket. The measuring robot is connected to the PC terminal through the antenna. A control method is proposed based on the monitoring device, which can solve the problem that the current prefabricated assembled lower structure has low installation accuracy and cannot be accurately controlled.

Description

Technical Field

[0001] The present invention relates to the field of construction control of prefabricated bridges, and in particular to a pile-column integrated substructure requiring high installation accuracy and real-time position control, and specifically is a prefabricated assembled substructure installation space posture monitoring device and control method. Background Art

[0002] As the application scope of prefabricated technology in bridges becomes wider and wider, it has gradually developed from partial prefabrication to full prefabrication, which makes the allowable error requirements of each segment during the installation process stricter, and puts forward higher and higher requirements for the installation accuracy during the prefabricated construction process. Especially with the emergence of new types of pile-column integrated bridge substructures, if the installation accuracy of a certain part is not properly controlled, it will be directly accumulated to the next segment. If the error exceeds the specified limit, the subsequent structure will not be able to be installed. Summary of the invention

[0003] In view of the above, it is necessary to provide a prefabricated substructure installation space posture monitoring device and control method to solve the current prefabricated substructure installation accuracy and the problem of inability to accurately control the problem.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A prefabricated and assembled lower structure installation space posture monitoring device, comprising a bracket, a high-precision angle sensor, a high-precision biaxial inclinometer, a prism, a data acquisition box, an antenna, a measuring robot, and a PC terminal. The bracket is installed on the top surface of a prefabricated pipe pile, and the prism is installed on the top of the bracket. A data acquisition box and an antenna are also installed on the bracket. The data acquisition box is connected to the PC terminal via the antenna. The data acquisition box is also connected to the high-precision angle sensor and the high-precision biaxial inclinometer respectively. The high-precision angle sensor and the high-precision biaxial inclinometer are both installed on the top surface of the prefabricated pipe pile and are arranged along the azimuth line of the prefabricated pipe pile. The measuring robot is placed on a control point at a construction site, and collects data through the prism on the bracket. The measuring robot is connected to the PC terminal via an antenna.

[0006] Preferably, the prism is arranged along the length direction of the prefabricated pipe pile.

[0007] Preferably, the bracket is located in the middle of the top surface of the prefabricated pipe pile, and the high-precision angle sensor and the high-precision dual-axis inclinometer are arranged on opposite sides of the bracket.

[0008] Preferably, the data acquisition box and the antenna connected thereto are arranged below the prism.

[0009] Preferably, the high-precision angle sensor and the high-precision dual-axis inclinometer are both connected to the data acquisition box via an antenna.

[0010] The present invention also provides a method for controlling the installation space posture of a prefabricated lower structure, which uses the above-mentioned monitoring device, and the control method comprises the following steps:

[0011] (1) Lay out a control network at the construction site and install a measurement robot;

[0012] (2) After the prefabricated pipe piles are transported to the site, the prefabricated pipe piles are placed in a lifting posture;

[0013] (3) Grinding the top surface of the prefabricated pipe pile to make its end surface smooth;

[0014] (4) Install a bracket on the top surface of the prefabricated pipe pile, and install a prism, a data acquisition box and an antenna on the bracket respectively;

[0015] (5) Along the direction of the prefabricated pipe pile azimuth line, a high-precision dual-axis inclinometer and a high-precision angle sensor are installed on the top surface of the prefabricated pipe pile;

[0016] (6) Connect the high-precision dual-axis inclinometer and high-precision angle sensor to the data acquisition box respectively, and connect them to the antenna at the same time;

[0017] (7) Connect the antenna to the PC and turn on the power of the monitoring device to preheat for 5 minutes;

[0018] (8) Start lifting and check the spatial posture of the precast pipe pile in real time through the PC. The spatial posture is determined by the verticality, azimuth and spatial position of the precast pipe pile. The verticality is measured by a high-precision dual-axis inclinometer, the azimuth is measured by a high-precision angle sensor, and the spatial position is determined by the data collected by the measuring robot through the prism. When the spatial posture of the precast pipe pile does not meet the requirements, the precast pipe pile is adjusted until its spatial posture meets the requirements, thereby completing the installation.

[0019] Furthermore, the control network in step (1) is composed of a plurality of control points, and the control points are arranged at positions that are stable, reliable, not easily damaged and convenient for measurement.

[0020] Preferably, in step (4), the bracket is placed in the middle of the top surface of the prefabricated pipe pile, and the prism is directly opposite to the center position of the top surface of the prefabricated pipe pile.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The prefabricated and assembled substructure installation space posture monitoring device proposed by the present invention has the advantages of small size, sensitive testing, and high progress. At the same time, data is transmitted wirelessly, which solves the problem of poor operability of the monitoring device installation in the complex environment of the construction site;

[0023] 2. The present invention proposes a method for controlling the spatial posture of a prefabricated lower structure during installation. The spatial posture position data of the prefabricated pipe piles required by the control method are all automatically measured by sensors. Only one person on the PC can grasp the spatial posture of the prefabricated pipe piles during the installation process, thereby guiding the construction personnel to adjust the spatial posture of the prefabricated pipe piles, greatly improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the layout of the prefabricated assembled lower structure installation space posture monitoring equipment of the present invention.

[0025] Main component symbols

[0026] In the figure: bracket 1, prism 2, data acquisition box 3, high-precision angle sensor 4, high-precision dual-axis inclinometer 5, measuring robot 6, PC terminal 7, antenna 8, prefabricated pipe pile 9, lifting system 10.

[0027] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0028] See also Figure 1 In a preferred embodiment of the present invention, a prefabricated and assembled lower structure installation space posture monitoring device includes a bracket 1, a high-precision angle sensor 4, a high-precision dual-axis inclinometer 5, a prism 2, a data acquisition box 3, an antenna, a measuring robot 6, and a PC terminal 7.

[0029] The bracket 1 is installed on the top surface of the prefabricated pipe pile 9, and the prism 2 is installed on the top of the bracket 1. A data acquisition box 3 and an antenna are also installed on the bracket 1. The data acquisition box 3 is connected to the PC terminal 7 through the antenna. The data acquisition box 3 is also connected to the high-precision angle sensor 4 and the high-precision dual-axis inclinometer 5 respectively. The high-precision angle sensor 4 and the high-precision dual-axis inclinometer 5 are both installed on the top surface of the prefabricated pipe pile 9 and are arranged along the azimuth line of the prefabricated pipe pile 9 (the azimuth line is the axial direction of the cap beam). The measuring robot 6 is placed on the control point of the construction site, and it collects data through the prism 2 on the bracket 1. The measuring robot 6 is connected to the PC terminal 7 through an antenna.

[0030] The present invention installs a prism 2, a data acquisition box 3 and an antenna on the top surface of a prefabricated pipe pile 9 through a bracket 1. A measuring robot 6 located at a control point on the construction site can collect data through the prism 2. The collected data is the spatial position on the top surface of the prefabricated pipe pile 9. The data is transmitted to a PC terminal 7 through an antenna. The monitor can determine the spatial position of the center of the upper end surface of the prefabricated pipe pile 9 by checking the reading of the automatic measuring robot 6 through the PC terminal 7. Secondly, the present invention detects the verticality of the prefabricated pipe pile 9 by arranging a high-precision dual-axis inclinometer 5 on the top surface of the prefabricated pipe pile 9, and detects the verticality of the prefabricated pipe pile 9 by arranging a high-precision angle sensor 4. The azimuth of the prefabricated pipe pile 9 is detected, and the data after the detection are transmitted to the data acquisition box 3 through the antenna, and then transmitted to the PC terminal 7 by the data acquisition box 3 through the antenna. The monitor can check the reading of the high-precision dual-axis inclinometer 5 through the PC terminal 7 to determine the verticality of the prefabricated pipe pile 9, and check the reading of the high-precision angle sensor 4 to determine the azimuth of the prefabricated pipe pile 9. The PC terminal 7 determines the spatial position of the prefabricated pipe pile 9 during installation in real time by combining the verticality, azimuth and spatial position. The monitor guides the construction of the prefabricated pipe pile 9 by determining the spatial position of the prefabricated pipe pile 9, which greatly improves the installation efficiency of the prefabricated pipe pile 9.

[0031] Preferably, in this embodiment, the prism 2 is arranged along the length direction of the prefabricated pipe pile 9; the bracket 1 is located in the middle of the top surface of the prefabricated pipe pile 9, and the prism 2 is preferably located at the center position of the top surface of the prefabricated pipe pile 9, so that the measuring robot 6 can obtain the spatial position of the center of the top surface of the prefabricated pipe pile 9, and the high-precision angle sensor 4 and the high-precision dual-axis inclinometer 5 are arranged on opposite sides of the bracket 1; the data acquisition box 3 and the antenna connected thereto are arranged below the prism 2; the high-precision angle sensor 4 and the high-precision dual-axis inclinometer 5 are both connected to the data acquisition box 3 through the antenna.

[0032] Based on the above monitoring equipment, the present invention also provides a method for controlling the installation space posture of a prefabricated substructure, the control method comprising the following steps:

[0033] (1) A control network is laid out at the construction site and a measuring robot 6 is installed. In this step, the control network is composed of a number of control points, which are set at positions that are stable, reliable, not easily damaged, and easy to measure. The control points must not only meet the observation needs of the measuring robot 6, but also meet the requirements of the prefabricated substructure construction for control points.

[0034] (2) After the prefabricated pipe pile 9 is transported to the site, the prefabricated pipe pile 9 is placed in a lifting posture.

[0035] (3) Grinding the top surface of the prefabricated pipe pile 9 to make its end surface smooth.

[0036] (4) A bracket 1 is installed on the top surface of the prefabricated pipe pile 9, and a prism 2, a data acquisition box 3 and an antenna are installed on the bracket 1 respectively; specifically, the bracket 1 is placed in the middle of the top surface of the prefabricated pipe pile 9, and the prism 2 is directly opposite to the center position of the top surface of the prefabricated pipe pile 9.

[0037] (5) Along the azimuth line direction of the prefabricated pipe pile 9, a high-precision dual-axis inclinometer 5 and a high-precision angle sensor 4 are respectively installed on the top surface of the prefabricated pipe pile 9.

[0038] (6) Connect the high-precision dual-axis inclinometer 5 and the high-precision angle sensor 4 to the data acquisition box 3 respectively, and connect them to the antenna at the same time.

[0039] (7) Connect the antenna to the PC and turn on the power of the monitoring device to preheat for 5 minutes.

[0040] (8) The hoisting system 10 starts to lift and the spatial posture of the prefabricated pipe pile 9 is checked in real time through the PC terminal 7. The spatial posture is determined by the verticality, azimuth and spatial position of the prefabricated pipe pile 9. The verticality is measured by the high-precision dual-axis inclinometer 5, the azimuth is measured by the high-precision angle sensor 4, and the spatial position is determined by the data collected by the measuring robot 6 through the prism 2. When the spatial posture of the prefabricated pipe pile 9 does not meet the requirements, the prefabricated pipe pile 9 is adjusted until its spatial posture meets the requirements, thereby completing the installation.

[0041] The above description is a detailed description of the preferred feasible embodiments of the present invention, but the embodiments are not intended to limit the scope of the patent application of the present invention. All equivalent changes or modified changes completed under the technical spirit suggested by the present invention should fall within the patent scope covered by the present invention.

Claims

1. A method for controlling the installation space posture of a prefabricated substructure, characterized in that: It adopts a prefabricated and assembled lower structure to install a space posture monitoring device, which includes a bracket, a high-precision angle sensor, a high-precision dual-axis inclinometer, a prism, a data acquisition box, an antenna, a measuring robot, and a PC. The bracket is installed on the top surface of the prefabricated pipe pile, and the prism is installed on the top of the bracket. A data acquisition box and an antenna are also installed on the bracket. The data acquisition box is connected to the PC via the antenna. The data acquisition box is also connected to the high-precision angle sensor and the high-precision dual-axis inclinometer respectively. The high-precision angle sensor and the high-precision dual-axis inclinometer are both installed on the top surface of the prefabricated pipe pile and are arranged along the azimuth line of the prefabricated pipe pile. The measuring robot is placed on the control point of the construction site, and collects data through the prism on the bracket. The measuring robot is connected to the PC via an antenna. The control method comprises the following steps: (1) Lay out a control network at the construction site and install a measurement robot; (2) After the prefabricated pipe piles are transported to the site, the prefabricated pipe piles are placed in a lifting position; (3) grinding the top surface of the prefabricated pipe pile to make its end surface smooth; (4) Install a bracket on the top surface of the prefabricated pipe pile, and install a prism, a data acquisition box and an antenna on the bracket respectively; (5) Along the direction of the prefabricated pipe pile azimuth line, a high-precision dual-axis inclinometer and a high-precision angle sensor are respectively installed on the top surface of the prefabricated pipe pile; (6) Connect the high-precision dual-axis inclinometer and the high-precision angle sensor to the data acquisition box respectively, and connect them to the antenna at the same time; (7) Connect the antenna to the PC and turn on the power of the monitoring device to preheat for 5 minutes; (8) Start lifting and check the spatial posture of the prefabricated pipe pile in real time through the PC. The spatial posture is determined by the verticality, azimuth and spatial position of the prefabricated pipe pile. The verticality is measured by a high-precision dual-axis inclinometer, the azimuth is measured by a high-precision angle sensor, and the spatial position is determined by the data collected by the measuring robot through the prism. When the spatial posture of the prefabricated pipe pile does not meet the requirements, the prefabricated pipe pile is adjusted until its spatial posture meets the requirements, thereby completing the installation.

2. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: The prisms are arranged along the length direction of the prefabricated pipe piles.

3. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: The bracket is located in the middle of the top surface of the prefabricated pipe pile, and the high-precision angle sensor and the high-precision dual-axis inclinometer are respectively arranged on two opposite sides of the bracket.

4. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: The data acquisition box and the antenna connected thereto are arranged below the prism.

5. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: The high-precision angle sensor and the high-precision dual-axis inclinometer are both connected to the data acquisition box via antennas.

6. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: The control network in step (1) is composed of a plurality of control points, and the control points are set at positions that are stable, reliable, not easily damaged and easy to measure.

7. The method for controlling the installation space posture of a prefabricated lower structure according to claim 1, characterized in that: In step (4), the bracket is placed in the middle of the top surface of the prefabricated pipe pile, and the prism is directly opposite to the center position of the top surface of the prefabricated pipe pile.

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