A method for measuring formed pipe segments of vertical shaft drilling rig

Abstract

The invention belongs to the technical field of underground engineering, and specifically relates to a detection device and a measuring method for a formed pipe segment of a shaft drilling rig, which improves the detection efficiency of the verticality of the assembled pipe segments of a shaft circular hole tunnel and greatly reduces the detection labor intensity of workers. The invention comprises a tunnel excavated by a shaft drilling rig, wherein a measuring positioning block is arranged in the tunnel excavated by the shaft drilling rig, and a plurality of distance measuring sensors are evenly arranged on the peripheral end surface of the measuring positioning block for measuring and detecting the verticality of the assembled pipe segments in the tunnel; a fixed frame is arranged at the top side end of the tunnel excavated by the shaft drilling rig, a delivery pulley block is arranged on the fixed frame, a traction delivery device is connected to the delivery pulley block, and the traction delivery device is connected to the measuring positioning block. The detection device and the measuring method for the formed pipe segment of a shaft drilling rig designed by the invention greatly ensure the detection and measurement accuracy of the verticality of the assembled pipe segments of the shaft circular hole tunnel and ensure the assembly construction quality of the shaft circular hole tunnel.

Description

Technical Field

[0001] The invention belongs to the technical field of underground engineering; in particular, it relates to a detection device and a measurement method for a formed pipe segment of a vertical shaft drilling machine. Background Art

[0002] The shield construction method is a construction method that uses a shield machine to dig underground, and under the protection of the shield, excavation and lining operations are carried out safely inside the machine to construct a tunnel; the shield construction method consists of three major parts: stabilizing the excavation surface, shield machine excavation and lining; in the construction process of tunnel excavation, a shaft drilling rig is usually used to drill and excavate the shaft circular hole tunnel; at the same time, it is necessary to assemble cylindrical segments between the equipment and the soil to prevent soil collapse and protect the excavation equipment. After the shaft drilling rig completes the hole rotation task, its cylindrical segments are also assembled. At this time, it is necessary to detect the assembly quality of the cylindrical segments, that is, whether the centers of the circles of each annular segment are coaxial, and the construction quality of the shaft circular hole tunnel is judged by detecting the verticality of the assembled segments; therefore, it is very necessary to provide a shaft drilling rig formed segment detection device and measurement method. Summary of the invention

[0003] Purpose of the invention:

[0004] The main purpose is to provide a detection device and measurement method for formed pipe segments of a vertical shaft drilling rig, which not only improves the detection efficiency of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, greatly reduces the detection labor intensity of workers, but also greatly guarantees the detection and measurement accuracy of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, ensures the assembly construction quality of the vertical shaft circular hole tunnel, improves the company's automated detection capability during the construction process, and improves the company's economic benefits.

[0005] The technical solution of the present invention is:

[0006] Provided is a detection device for formed pipe segments of a shaft drilling rig, comprising a tunnel excavated by the shaft drilling rig, a measuring and positioning block is arranged in the tunnel excavated by the shaft drilling rig, a plurality of distance measuring sensors are evenly arranged on the peripheral end surface of the measuring and positioning block, and are used for measuring and detecting the verticality of assembled pipe segments in the tunnel; a fixed frame is arranged at the top side end of the tunnel excavated by the shaft drilling rig, a delivery pulley block is arranged on the fixed frame, a traction delivery device is connected to the delivery pulley block, the traction delivery device is connected to the measuring and positioning block, and the measuring and positioning block is delivered into the tunnel excavated by the shaft drilling rig.

[0007] The measuring and positioning block adopts a cylindrical structure, and the distance measuring sensors are evenly arranged on the 360° circumferential annular section of the cylinder.

[0008] A concentric balancing sleeve is also arranged at the center position of the measuring and positioning block.

[0009] The mass center of gravity of the distance measuring sensor coincides with the structural center of the measuring positioning block.

[0010] The traction and delivery device adopts a traction rope or a delivery plumb bob, and a rope displacement sensor is arranged on the traction and delivery device.

[0011] A concentric positioning block is also provided at the bottom center of the tunnel excavated by the shaft drilling rig.

[0012] A dual-axis inclinometer is also provided on the measuring and positioning block.

[0013] A method for measuring a formed segment of a shaft drilling rig, comprising a detection device for a formed segment of a shaft drilling rig as described in any one of the above, the method comprising:

[0014] (1) Wellhead equipment layout: Assemble and fix the frame and the drop pulley block at the wellhead where the vertical shaft drilling rig excavates the tunnel to ensure the stability of the equipment;

[0015] (2) Dropping of the detection device: Connect a pull rope or plumb bob to the measuring positioning block, and drop the measuring positioning block into the tunnel excavated by the shaft drilling rig through the pulley block. Set a concentric positioning block at the bottom of the tunnel excavated by the shaft drilling rig, and connect the pull rope or plumb bob to the concentric positioning block to ensure that the measuring positioning block is dropped perpendicular to the horizontal plane;

[0016] (3) Detection of the verticality of assembled segments: The distance between the points of the corresponding segments is measured by using distance measuring sensors evenly arranged on the measuring and positioning blocks to determine the point coordinates of the corresponding segments; the coordinates of the center of each measuring section are calculated by using the least squares fitting circle center algorithm; the travel distance of each measuring section is measured by using the pull rope displacement sensor arranged on the traction and delivery device to calculate the three-dimensional coordinates of the center of each measuring section, and the three-dimensional coordinates of the center of adjacent measuring points are compared to determine the verticality of the segments between the sections; during the measurement process, a dual-axis inclinometer is used to ensure the device tilt state during each measurement process and optimize the measurement accuracy of each measuring point;

[0017] (4) Data analysis: The center coordinates of each measuring section are input into the control box and PC to perform data analysis and structural optimization on the verticality of the assembled segments.

[0018] The beneficial effects of the present invention are:

[0019] The invention designs a device and a method for detecting and measuring formed pipe segments of a vertical shaft drilling rig, which not only improves the detection efficiency of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, greatly reduces the detection labor intensity of the workers, but also greatly ensures the detection and measurement accuracy of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, ensures the assembly construction quality of the vertical shaft circular hole tunnel, improves the enterprise's automated detection capability during the construction process, and improves the enterprise's economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the detection arrangement structure of the pipe segment detection device of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure for calculating the point coordinates of the pipe segment of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the verticality measurement of the pipe segment of the present invention.

[0023] In the figure: 1 is a shaft drilling rig for excavating a tunnel; 2 is a measuring positioning block; 3 is a distance measuring sensor; 4 is a fixed frame; 5 is a launching pulley block; 6 is a traction launching device; 7 is a concentric balancing sleeve; 8 is a pull rope displacement sensor; 9 is a concentric positioning block; 10 is a dual-axis inclinometer; 11 is a control box; 12 is a PC. DETAILED DESCRIPTION

[0024] The specific implementation modes of the present invention are described in detail below with reference to the accompanying drawings.

[0025] like Figures 1 to 3 As shown, a shaft drilling rig formed pipe segment detection device is provided, including a shaft drilling rig excavation tunnel 1. After the shaft drilling rig excavation tunnel is excavated, the pipe segments are assembled on the peripheral lining in the tunnel. A measuring positioning block 2 is arranged in the shaft drilling rig excavation tunnel. A plurality of distance measuring sensors 3 are evenly arranged on the peripheral end surface of the measuring positioning block. In the specific distance measuring sensor setting, a laser distance measuring sensor can be used. When the laser sensor is working, a laser diode first aims at a target and emits a laser pulse. After being reflected by the target, the laser is scattered in all directions. Part of the scattered light returns to the sensor receiver and is received by the optical system. The imaging is onto an avalanche photodiode, which is an optical sensor with an internal amplification function. Therefore, it can detect extremely weak light signals, record and process the time from the emission of the light pulse to the return reception, and thus determine the target distance; it is used for measuring and detecting the verticality of assembled pipe segments in the tunnel; a fixed frame 4 is provided at the top side end of the tunnel excavated by the shaft drilling rig, a delivery pulley block 5 is provided on the fixed frame, a traction delivery device 6 is connected to the delivery pulley block, and the traction delivery device is connected to the measuring positioning block, so that the measuring positioning block is delivered into the tunnel excavated by the shaft drilling rig.

[0026] Preferably, the measuring and positioning block adopts a cylindrical structure, and the distance measuring sensors are evenly distributed on the 360° circumferential annular section of the cylinder.

[0027] Preferably, a concentric balancing sleeve 7 is further provided at the center position of the measuring positioning block, and the provided concentric balancing sleeve is used for the concentric balancing function of the measuring positioning block.

[0028] Preferably, the mass center of gravity of the distance measuring sensor coincides with the structural center of the measuring and positioning block.

[0029] Preferably, the traction and delivery device adopts a traction rope or a delivery plumb bob, and a rope displacement sensor 8 is arranged on the traction and delivery device. The rope displacement sensor is also called a rope sensor, a rope sensor, a rope electronic ruler, and a rope encoder; the rope displacement sensor is a linear displacement sensor with a sophisticated structure, which fully combines the advantages of an angle sensor and a linear displacement sensor to become a sensor with a small installation size, a compact structure, a large measuring stroke, and a high precision. The stroke ranges from several hundred millimeters to more than ten meters. The rope displacement sensor arranged on the traction and delivery device can accurately measure the vertical displacement of the measuring positioning block deep into the vertical shaft pipeline.

[0030] Preferably, a concentric positioning block 9 is further provided at the bottom center of the tunnel excavated by the shaft drilling rig, and the concentric positioning block is connected to the traction and delivery device to ensure that the wellhead pull rope and the well bottom pull rope are concentric.

[0031] Preferably, a dual-axis inclinometer is also provided on the measuring and positioning block. During the setting process of the dual-axis inclinometer, the AXZ610T full-temperature-compensated high-precision dual-axis current output inclinometer can be selected; it is used to ensure the horizontal inclination of the measuring and positioning block and to improve the detection accuracy during the verticality detection process of the pipe segment.

[0032] A method for measuring a formed segment of a shaft drilling rig, comprising a detection device for a formed segment of a shaft drilling rig as described in any one of the above, the method comprising:

[0033] (1) Wellhead equipment layout: Assemble and fix the frame and the drop pulley block at the wellhead where the vertical shaft drilling rig excavates the tunnel to ensure the stability of the equipment;

[0034] (2) Dropping of the detection device: Connect a pull rope or plumb bob to the measuring positioning block, and drop the measuring positioning block into the tunnel excavated by the shaft drilling rig through the pulley block. Set a concentric positioning block at the bottom of the tunnel excavated by the shaft drilling rig, and connect the pull rope or plumb bob to the concentric positioning block to ensure that the measuring positioning block is dropped perpendicular to the horizontal plane;

[0035] (3) Detection of the verticality of assembled segments: The distance between the points of the corresponding segments is measured by using distance measuring sensors evenly arranged on the measuring and positioning blocks to determine the point coordinates of the corresponding segments; the coordinates of the center of each measuring section are calculated by using the least squares fitting circle center algorithm; the travel distance of each measuring section is measured by using the pull rope displacement sensor arranged on the traction and delivery device to calculate the three-dimensional coordinates of the center of each measuring section, and the three-dimensional coordinates of the center of adjacent measuring points are compared to determine the verticality of the segments between the sections; during the measurement process, a dual-axis inclinometer is used to ensure the device tilt state during each measurement process and optimize the measurement accuracy of each measuring point;

[0036] (4) Data analysis: The center coordinates of each measuring section are input into the control box 11 and the PC 11 to perform data analysis and structural optimization on the verticality of the assembled segments.

[0037] The following is attached to the instruction manual Figure 2 and attached Figure 3 The specific method for calculating the verticality of the formed segment is explained in detail:

[0038] In the attached Figure 2 In the figure, a plane coordinate system is established with the center point 0 of the measuring positioning block, and the radius of the center of the measuring positioning block is taken as the base circle radius r; the straight line distance h3 from the base circle radius to the formed pipe segment is measured by the laser ranging sensor, then the point coordinates of the formed pipe segment measured by the laser ranging sensor are:

[0039] Px=(r+h)*cos

[0040] Py=(r+h)*cos

[0041] After determining the point coordinates of P(x,y) of each laser ranging sensor, the center coordinates O(x,y) of the current measuring section are calculated by least square fitting; the travel distance z of each measuring section can be obtained by the pull-wire displacement sensor; in this way, Figure 3 The spatial coordinates O of the measured section a can be obtained a (x a ,y a ,z a ) and the spatial coordinates O of the measured section b b (x b ,y b ,z b ); then the verticality between each section can be calculated by the following formula:

[0042]

[0043] The above-mentioned measurement method can be used to obtain the verticality between the sections, thereby performing data analysis and structural optimization on the verticality of the assembled segments.

[0044] The invention designs a device and a method for detecting and measuring formed pipe segments of a vertical shaft drilling rig, which not only improves the detection efficiency of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, greatly reduces the detection labor intensity of the workers, but also greatly ensures the detection and measurement accuracy of the verticality of the assembled pipe segments of the vertical shaft circular hole tunnel, ensures the assembly construction quality of the vertical shaft circular hole tunnel, improves the enterprise's automated detection capability during the construction process, and improves the enterprise's economic benefits.

[0045] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] The above description is only an illustrative specific implementation mode of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any technician in the field without departing from the concept and principle of the present invention should fall within the scope of protection of the present invention.

Claims

1. A method for measuring a segment formed by a shaft drilling rig, comprising a detection device for detecting a segment formed by a shaft drilling rig, wherein a measuring and positioning block is arranged in a tunnel excavated by the shaft drilling rig, a plurality of distance measuring sensors are evenly arranged on the peripheral end surface of the measuring and positioning block, a fixed frame is arranged at the top end of the tunnel excavated by the shaft drilling rig, a delivery pulley block is arranged on the fixed frame, a traction delivery device is connected to the delivery pulley block, and the traction delivery device is connected to the measuring and positioning block, and the characteristics are as follows: (1) Wellhead equipment layout: Assemble and fix the frame and the drop pulley block at the wellhead where the vertical shaft drilling rig excavates the tunnel to ensure the stability of the equipment; (2) Dropping of the detection device: Connect a pull rope or plumb bob to the measuring positioning block, and drop the measuring positioning block into the tunnel excavated by the shaft drilling rig through the pulley block. Set a concentric positioning block at the bottom of the tunnel excavated by the shaft drilling rig, and connect the pull rope or plumb bob to the concentric positioning block to ensure that the measuring positioning block is dropped perpendicular to the horizontal plane; (3) Detection of the verticality of assembled segments: The distance between the points of the corresponding segments is measured by using distance measuring sensors evenly arranged on the measuring and positioning blocks to determine the point coordinates of the corresponding segments; the coordinates of the center of each measuring section are calculated by using the least squares fitting circle center algorithm; the travel distance of each measuring section is measured by using the pull rope displacement sensor arranged on the traction and delivery device to calculate the three-dimensional coordinates of the center of each measuring section, and the three-dimensional coordinates of the center of adjacent measuring points are compared to determine the verticality of the segments between the sections; during the measurement process, a dual-axis inclinometer is used to ensure the device tilt state during each measurement process and optimize the measurement accuracy of each measuring point; (4) Data analysis: The center coordinates of each measuring section are input into the control box and PC to perform data analysis and structural optimization on the verticality of the assembled segments.

2. A method for measuring a formed segment of a shaft drilling rig according to claim 1, characterized in that: The measuring and positioning block adopts a cylindrical structure, and the distance measuring sensors are evenly arranged on the 360° circumferential annular section of the cylinder.

3. A method for measuring a formed segment of a shaft drilling rig according to claim 2, characterized in that: A concentric balancing sleeve is also arranged at the center position of the measuring and positioning block.

4. A method for measuring a formed segment of a vertical shaft drilling rig according to claim 2 or 3, characterized in that: The mass center of gravity of the distance measuring sensor coincides with the structural center of the measuring positioning block.

5. A method for measuring a formed segment of a shaft drilling rig according to claim 1, characterized in that: The traction and delivery device adopts a traction rope or a delivery plumb bob, and a rope displacement sensor is arranged on the traction and delivery device.

6. A method for measuring a formed segment of a shaft drilling rig according to claim 5, characterized in that: A concentric positioning block is also provided at the bottom center of the tunnel excavated by the shaft drilling rig.

7. A vertical shaft drilling rig formed segment detection device according to claim 1, characterized in that: A dual-axis inclinometer is also provided on the measuring and positioning block.

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