Vertical shaft duct piece lifting and placing device and vertical shaft construction method

Abstract

The invention relates to a vertical shaft duct piece lifting and placing device and a vertical shaft construction method. The device comprises a base, a steel strand set and a winding motor. A rotatable first lifting and placing plate is mounted on the base, and a first telescopic rod is further arranged between the first lifting and placing plate and the base; a rotatable second lifting and placing plate is mounted at the other end of the first lifting and placing plate, a second telescopic rod is arranged between the upper end of the second lifting and placing plate and the first lifting and placing plate, and the lower end face of the second lifting and placing plate is an arc-shaped face; the winding motor is connected with a first winding wheel, one end of the steel strand set is connected to the first winding wheel, and the other end of the steel strand set sequentially penetrates through the base and the first lifting and placing plate and then penetrates out of the middle of the second lifting and placing plate. A limiting buckle capable of clamping the steel strand set is further arranged in the base. During construction, inclination information of the duct pieces is collected, then the steel strand sets are clamped through the limiting buckles, lifting and placing of the duct pieces are completed through rotation of the first lifting and placing plate and the second lifting and placing plate, and the transition process of lifting and placing of the duct pieces can be better achieved.

Description

Technical Field

[0001] The invention relates to the technical field of vertical shaft construction, and in particular to a vertical shaft segment lifting and lowering device and a vertical shaft construction method. Background Art

[0002] With the advancement of science and technology and the vigorous development of infrastructure, people have higher and higher requirements for the construction level of infrastructure. In urban underground space projects, horizontal underground projects have been relatively mature, such as subways and tunnels, while vertical deep well projects have gradually increased due to their advantages such as small footprint and high space utilization. The prefabricated segment assembly caisson method is the best for such projects.

[0003] At present, when constructing a vertical shaft, most of the time, a steel strand system is used to lift and lower the pipe segments. The existing steel strand system is prone to force concentration, and sudden lifting or lowering will cause damage to the steel strand. To this end, the present application proposes a vertical shaft pipe segment lifting and lowering device and a vertical shaft construction method. Summary of the invention

[0004] In view of the problem that the existing steel strand system is prone to stress concentration and sudden lifting or lowering may cause damage to the steel strand, the present invention proposes a shaft segment lifting and lowering device and a construction method. The specific technical solution is as follows: A vertical shaft segment lifting and lowering device comprises a base, a steel strand group, a winding motor, a first lifting and lowering plate and a second lifting and lowering plate; one end of the first lifting and lowering plate is rotatably mounted on the base, and a first telescopic rod for controlling the rotation of the first lifting and lowering plate is provided between the first lifting and lowering plate and the base; the middle part of the second lifting and lowering plate is rotatably mounted on the other end of the first lifting and lowering plate, and a second telescopic rod for controlling the rotation of the second lifting and lowering plate is provided between the upper end of the second lifting and lowering plate and the first lifting and lowering plate, and the lower end surface of the second lifting and lowering plate is an arc-shaped surface; the winding motor is connected to the first winding wheel, one end of the steel strand group is connected to the first winding wheel, and the other end of the steel strand group passes through the base and the first lifting and lowering plate in sequence and then passes through the middle part of the second lifting and lowering plate; a limiting buckle capable of clamping the steel strand group is also provided in the base, and when the segment is tilted, after the steel strand group is clamped by the limiting buckle, the lifting and lowering of the segment is completed by rotating the first lifting and lowering plate and the second lifting and lowering plate.

[0005] Furthermore, the cross section of the first lifting plate is V-shaped.

[0006] Furthermore, the cross section of the second lifting plate is arc-shaped.

[0007] Furthermore, the first telescopic rod and the second telescopic rod are both hydraulic rods.

[0008] Furthermore, the steel strand group includes three steel strands.

[0009] Furthermore, a second winding wheel is arranged between the first winding wheel and the base, and the fixed end of the steel strand group is connected to the first winding wheel. After the steel strand group is wound on the first winding wheel and the second winding wheel, the movable end of the steel strand group passes through the base and the first lifting plate in sequence and then passes through the middle of the second lifting plate.

[0010] A vertical shaft construction method comprises the vertical shaft segment lifting and lowering device, an inclinometer tube analysis device, a processor and an inclinometer tube assembly installed on the segment, wherein the inclinometer tube assembly comprises a horizontal inclinometer tube and a vertical inclinometer tube connected together, the processor is communicatively connected with a winding motor, an inclinometer tube analysis device, a first telescopic rod, a second telescopic rod and a limit buckle, and the inclinometer tube analysis device is communicatively connected with the horizontal inclinometer tube and the vertical inclinometer tube; the construction method comprises the following steps: S1. After transporting the pipe segments to the construction site, install the inclinometer tube assembly on each pipe segment; S2. After the shaft excavation is completed, a shaft segment lifting and placing device corresponding to the number of segments in one ring is arranged beside the shaft, and the shaft segment lifting and placing device corresponds to the position of each segment in one ring; S3, using the shaft segment lifting and lowering device to lift the segments into the shaft for assembly; S4. After a ring of segments is assembled, the inclinometer tube analysis device is used to collect and analyze the data of the horizontal inclinometer tube and the vertical inclinometer tube on the ring of segments. After receiving the data from the inclinometer tube analysis device, the processor controls the shaft segment lifting and lowering device to adjust the segment posture until the position of the ring of segments meets the construction requirements.

[0011] Furthermore, in S4, when a pipe segment on one side of the ring needs to be lifted and lowered, the processor sends a signal to control the limit buckle in the corresponding vertical shaft pipe segment lifting and lowering device to clamp the steel strand group, and then controls the first telescopic rod and the second telescopic rod to complete the lifting and lowering of the pipe segment.

[0012] The beneficial effects of the present invention are: 1. By controlling the rotation of the first lifting plate and the second lifting plate through the operation of the first telescopic rod and the second telescopic rod, the transition process of lifting and lowering the pipe segment can be better realized, which can prevent the steel strand from being damaged by the force concentration phenomenon and the sudden lifting or lowering, thereby better ensuring the construction quality.

[0013] 2. During construction, the deflection of the shaft segments is analyzed based on the data from the horizontal inclinometer tube and the vertical inclinometer tube, which improves the accuracy of the deflection data. The shaft segment lifting and lowering device is controlled through the feedback of the deflection data to fine-tune the segment posture, and the sinking and deflection of the shaft segment are controlled and improved, which can provide higher construction accuracy and ensure construction quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of the vertical shaft segment lifting and lowering device of the present invention; Figure 2 is a front view of the vertical shaft segment lifting and lowering device of the present invention; Figure 3 is a schematic diagram of the position limiting buckle of the present invention; Figure 4 is a schematic diagram of the inclinometer casing assembly of the present invention; Figure 5 Schematic diagram of a ring segment of the present invention Figure 6 It is a flow chart of the shaft construction method described in the present invention.

[0016] In the figure: 1. base; 2. limit buckle; 3. first telescopic rod; 4. steel strand group; 5. second telescopic rod; 6. first lifting plate; 7. second lifting plate; 8. first winding wheel; 9. pipe segment; 10. horizontal inclinometer tube; 11. vertical inclinometer tube; 12. H-shaped fixing piece; 13. processor; 14. second winding wheel. DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that the terms "center", "vertical", "horizontal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying 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 limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0018] It should be noted that the "active end of the steel strand group" refers to the end of the steel strand group connected to the pipe segment, and the "one-ring pipe segment" refers to a ring-shaped structural member formed by splicing multiple arc-shaped pipe segments. The present invention provides the following specific implementation schemes: First, as Figure 1-3 As shown, the present invention provides a vertical shaft segment lifting and lowering device, including a base 1, a steel strand group 4, a winding motor, a first lifting and lowering plate 6 and a second lifting and lowering plate 7; one end of the first lifting and lowering plate 6 is rotatably mounted on the base 1, and a first telescopic rod 3 for controlling the rotation of the first lifting and lowering plate 6 is further provided between the first lifting and lowering plate 6 and the base 1; the middle part of the second lifting and lowering plate 7 is rotatably mounted on the other end of the first lifting and lowering plate 6, and a second telescopic rod 5 for controlling the rotation of the second lifting and lowering plate 7 is provided between the upper end of the second lifting and lowering plate 7 and the first lifting and lowering plate 6, and the lower end surface of the second lifting and lowering plate 7 is an arc surface, and the arc design can be When the wire needs to be lifted and released, the steel strands are effectively protected to prevent the steel strands from being subjected to concentrated force, thereby ensuring construction safety; the winding motor is connected to the first winding wheel 8, and the fixed end of the steel strand group 4 is connected to the first winding wheel 8. After being wound on the first winding wheel 8, the movable end of the steel strand group 4 passes through the base 1 and the first lifting plate 6 in sequence, and then passes through the middle of the second lifting plate 7; a limiting buckle 2 that can clamp the steel strand group 4 is also provided in the base 1. When the pipe segment 9 is tilted, after the steel strand group 4 is clamped by the limiting buckle 2, the lifting and release of the pipe segment 9 is completed by rotating the first lifting plate 6 and the second lifting plate 7.

[0019] Furthermore, the cross section of the first lifting plate 6 is V-shaped. In this embodiment, the first lifting plate 6 is arranged with its opening facing downward. When the first lifting plate 6 rotates counterclockwise according to the base 1, the movable end of the steel strand group 4 will be raised.

[0020] Furthermore, the cross section of the second lifting plate 7 is arc-shaped. In this embodiment, when the second lifting plate 7 rotates counterclockwise according to the first lifting plate 6, the movable end of the steel strand group 4 will be raised.

[0021] Furthermore, the first telescopic rod 3 and the second telescopic rod 5 are both hydraulic rods.

[0022] Furthermore, the steel strand group 4 includes three steel strands, which can achieve stable lifting and lowering of the pipe segment 9.

[0023] Furthermore, a second winding wheel 14 is arranged between the first winding wheel 8 and the base 1, and the fixed ends of the steel strands 4 are connected to the first winding wheel 8. After the steel strands 4 are wound on the first winding wheel 8 and the second winding wheel 14, the movable ends of the steel strands 4 pass through the base 1 and the first lifting plate 6 in turn, and then pass through the middle of the second lifting plate 7.

[0024] When hoisting the pipe segment 9, the pipe segment 9 is placed in the specified position by winding the steel strand group 4 of the motor, and then the posture of the pipe segment 9 is adjusted to meet the construction requirements. At this time, the limit buckle 2 is locked, and the first lifting plate 6 and the second lifting plate 7 are rotated through the operation of the first telescopic rod 3 and the second telescopic rod 5 to complete the micro-lifting or micro-releasing of the pipe segment 9.

[0025] Second, as Figure 4-6 As shown, the present invention provides a vertical shaft construction method, including the vertical shaft pipe segment lifting and lowering device, the inclinometer pipe analysis device, the processor 13 and the inclinometer pipe assembly installed on the pipe segment 9; the vertical shaft pipe segment 9 is prefabricated in the factory, and the corresponding space is reserved in advance for the installation of the inclinometer pipe assembly when the pipe segment 9 is manufactured. The inclinometer pipe assembly includes a horizontal inclinometer pipe 10 and a vertical inclinometer pipe 11 connected together, the axis of the vertical inclinometer pipe 11 is parallel to the axis of the pipe segment 9, the axis of the horizontal inclinometer pipe 10 is parallel to the radial plane of the pipe segment 9, the vertical inclinometer pipe 11 is fixedly installed on the inner wall of the pipe segment 9 by a semicircular ring clamp and screws, the horizontal inclinometer pipe 10 is installed in a shell, the shell is connected to the semicircular ring clamp by screws, and finally the horizontal inclinometer pipe 10 and the vertical inclinometer pipe 11 are fixed by welding the H-shaped fixing piece 12 to the shell and the semicircular ring clamp at the same time, and the horizontal inclinometer pipe 10 and the vertical inclinometer pipe 11 are perpendicular to each other.

[0026] The processor 13 is respectively connected to the winding motor, the inclinometer tube analysis device, the first telescopic rod 3, the second telescopic rod 5 and the limit buckle 2 through data line communication, and controls the operation of the winding motor, the extension and retraction of the first telescopic rod 3, the extension and retraction of the second telescopic rod 5, and the clamping or loosening of the steel strand by the limit buckle 2 by processing the data obtained by the inclinometer tube analysis device; the inclinometer tube analysis device is respectively connected to the horizontal inclinometer tube 10 and the vertical inclinometer tube 11 through data line communication to receive the measured data and analyze it. The data of the inclinometer tube includes the X, Y coordinate values ​​and the inclination angle of the measuring point. After the initial installation of the inclinometer tube, the initial data of the symmetrical point is adjusted to be the same. In the subsequent construction process, the data changes are continuously monitored to determine whether the pipe segment is tilted in the left and right or elevation direction. For example, the four groups of Y data in the circumferential direction should be the same value. If it is found that the data of one side fluctuates greatly or is different from the values ​​of the other sides during the construction process, it is determined that the side is tilted.

[0027] The construction method includes the following steps: S1, after transporting the pipe segments 9 to the construction site, installing the inclinometer tube assembly on each pipe segment 9; S2. After the shaft excavation is completed, a shaft segment lifting and placing device corresponding to the number of segments 9 in a ring of segments is arranged beside the shaft, and the shaft segment lifting and placing device corresponds to the position of each segment 9 in a ring of segments; S3, using the shaft segment lifting and lowering device to lift the segment 9 into the shaft for assembly; S4, after a ring of segments is assembled, the data of the horizontal inclinometer tube 10 and the vertical inclinometer tube 11 on the ring segment 9 are collected and analyzed by using the inclinometer tube analysis device. The inclinometer tube assembly uploads the collected original data of the coordinates and inclination angles of the measuring points at different depths to the inclinometer tube analysis device to determine the displacement of the measuring points; the processor 13 receives the data from the inclinometer tube analysis device, pre-processes the original data, performs error processing and correction, eliminates the data errors caused by environmental factors such as machine vibration and mud and water flow impact in the wellbore, and performs numerical calculation after ensuring the accuracy of the data. After processing, the relative displacement is obtained, and then the displacement of the shaft at different depths is accumulated section by section to determine the displacement direction and displacement of the segment; then the shaft segment lifting and lowering device is controlled to adjust the posture of the segment 9 until the position of the ring segment 9 meets the construction requirements.

[0028] Furthermore, in S4, when the pipe segment 9 on one side of the ring needs to be lifted and lowered, the processor 13 sends a signal to control the limit buckle 2 in the corresponding vertical shaft pipe segment 9 lifting and lowering device to clamp the steel strand 4 group, and then controls the first telescopic rod 3 and the second telescopic rod 5 to work to complete the lifting and lowering of the pipe segment 9.

[0029] When the pipe segment 9 on one side is offset and the pipe segment 9 on that side needs to be lifted, while the other side does not need to be changed, the steel strand 4 limit buckle 2 of the lifting device of the vertical shaft pipe segment 9 on that side is in a locked state, the first telescopic rod 3 contracts and drives the first lifting plate 6 to rotate counterclockwise, and the second telescopic rod 5 extends to drive the second lifting plate 7 to rotate clockwise, so that the steel strand 4 is only lifted in the vertical direction; when the pipe segment 9 needs to be lowered, the steel strand 4 limit buckle 2 is locked, the first telescopic rod 3 extends and drives the first lifting plate 6 to rotate clockwise, and the second telescopic rod 5 contracts and drives the second lifting plate 7 to rotate counterclockwise, so that the steel strand 4 is only lowered in the vertical direction.

[0030] By controlling the rotation of the first lifting plate 6 and the second lifting plate 7 through the operation of the first telescopic rod 3 and the second telescopic rod 5, the transition process of lifting and lowering the pipe segment 9 can be better realized, which can prevent the steel strand from being subjected to stress concentration and damage to the steel strand caused by sudden lifting or lowering, thereby better ensuring the construction quality.

[0031] During construction, the deflection of the shaft segment 9 is analyzed based on the data from the horizontal inclinometer tube 10 and the vertical inclinometer tube 11, which improves the accuracy of the deflection data. The shaft segment lifting and lowering device is controlled by feedback of the deflection data to fine-tune the posture of the segment 9, and the sinking and deflection of the shaft segment 9 are controlled and improved, which can provide higher construction accuracy and ensure construction quality.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A vertical shaft segment lifting and lowering device, characterized in that: The invention comprises a base (1), a steel strand group (4), a winding motor, a first lifting plate (6) and a second lifting plate (7); one end of the first lifting plate (6) is rotatably mounted on the base (1), and a first telescopic rod (3) for controlling the rotation of the first lifting plate (6) is provided between the first lifting plate (6) and the base (1); the middle part of the second lifting plate (7) is rotatably mounted on the other end of the first lifting plate (6), and a second telescopic rod (5) for controlling the rotation of the second lifting plate (7) is provided between the upper end of the second lifting plate (7) and the first lifting plate (6); The lower end surface of the plate (7) is an arc-shaped surface; the winding motor is connected to a first winding wheel (8), the fixed end of the steel strand group (4) is connected to the first winding wheel (8), and the movable end of the steel strand group (4) passes through the base (1) and the first lifting plate (6) in sequence and then passes through the middle of the second lifting plate (7); a limiting buckle (2) capable of clamping the steel strand group (4) is also provided in the base (1), and when the pipe segment (9) is tilted, after the steel strand group (4) is clamped by the limiting buckle (2), the pipe segment (9) is lifted and lowered by rotating the first lifting plate (6) and the second lifting plate (7).

2. A vertical shaft segment lifting and lowering device according to claim 1, characterized in that: The cross section of the first lifting plate is V-shaped.

3. A vertical shaft segment lifting and lowering device according to claim 1, characterized in that: The cross section of the second lifting plate is arc-shaped.

4. A vertical shaft segment lifting and lowering device according to claim 1, characterized in that: The first telescopic rod (3) and the second telescopic rod (5) are both hydraulic rods.

5. A vertical shaft segment lifting and lowering device according to claim 1, characterized in that: The steel strand (4) group comprises three steel strands (4).

6. A vertical shaft segment lifting and lowering device according to claim 1, characterized in that: A second winding wheel (14) is arranged between the first winding wheel (8) and the base (1), and the fixed end of the steel strand (4) group is connected to the first winding wheel (8). After the steel strand (4) group is wound on the first winding wheel (8) and the second winding wheel (14), the movable end of the steel strand (4) group passes through the base (1), the first lifting plate (6) in sequence, and then passes through the middle of the second lifting plate (7).

7. A vertical shaft construction method, comprising the vertical shaft segment lifting and lowering device according to any one of claims 1 to 6, characterized in that: The device also comprises an inclinometer tube analysis device, a processor and an inclinometer tube assembly mounted on a pipe segment (9), wherein the inclinometer tube assembly comprises a horizontal inclinometer tube (10) and a vertical inclinometer tube (11) connected together, the processor is communicatively connected to a winding motor, the inclinometer tube analysis device, a first telescopic rod (3), a second telescopic rod (5) and a limit buckle (2), and the inclinometer tube analysis device is communicatively connected to the horizontal inclinometer tube (10) and the vertical inclinometer tube (11); and the construction method comprises the following steps: S1, after transporting the pipe segments (9) to the construction site, installing the inclinometer tube assembly on each pipe segment (9); S2. After the shaft is excavated, a shaft segment lifting and placing device corresponding to the number of segments (9) in a ring is arranged beside the shaft, and the shaft segment lifting and placing device corresponds to the position of each segment (9) in a ring; S3, using a shaft segment (9) lifting and lowering device to lift the segment (9) into the shaft for assembly; S4. After a ring of segments is assembled, the data of the horizontal inclinometer tube (10) and the vertical inclinometer tube (11) on the ring of segments are collected and analyzed using an inclinometer tube analysis device. After receiving the data from the inclinometer tube analysis device, the processor controls the shaft segment lifting and lowering device to adjust the posture of the segment (9) until the position of the ring of segments meets the construction requirements.

8. A vertical shaft construction method according to claim 7, characterized in that: In S4, when a pipe segment (9) in the ring needs to be lifted or lowered, the processor sends a signal to control the limit buckle (2) in the corresponding vertical shaft pipe segment lifting and lowering device to clamp the steel strand (4) group, and then controls the first telescopic rod (3) and the second telescopic rod to work to complete the lifting and lowering of the pipe segment (9).

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