Vertical-shiplift mounting and positioning method

Abstract

Disclosed in the present invention is a vertical-shiplift mounting and positioning method. The method comprises: designing a vertical-shiplift mounting and positioning reference network by means of a structure arrangement position of a shiplift; then, by means of the cooperation between a plurality of total stations and reference points, sequentially determining reference positioning points for the axis of an unobstructed section of a base plate of the shiplift, and mounting and positioning control points, wherein when point positions are determined, a step-wise manner is used, and previously determined point positions are used as reference points to determine subsequent point positions; and sequentially embedding positioning reference point apparatuses and positioning control point apparatuses during point position determination, and positioning and mounting racks and nut columns by means of the determined reference positioning points and the determined mounting and positioning control points. The method involves highly technical content, a simple operation and safety, is time-saving and labor-saving, and can achieve high-precision positioning for on-site mounting, thereby ensuring that the device mounting accuracy meets the high standards and requirements, improving the engineering quality, and ensuring the safe operation quality of vertical liftships.

Description

A method for installing and positioning a vertical ship lift Technical Field

[0001] The invention belongs to the technical field of vertical ship lift installation, and in particular relates to a vertical ship lift installation and positioning method. Background Art

[0002] The Three Gorges Shiplift is a rack and pinion climbing counterweight vertical shiplift. It is the world's first large-scale vertical shiplift driven by rack and pinion and with a long nut and short screw as a safety locking mechanism. The Three Gorges Shiplift uses a rack and pinion drive system, and the safe and stable operation of the shiplift is achieved through the mutual rotation of the nut and the safety screw and the driving system. The rack is the force transmission component of the cabin drive mechanism to the concrete tower column and also serves as the transverse guide rail of the cabin. The nut column is the force transmission component of the cabin safety mechanism to the concrete tower column. The four sets of drive racks and four sets of nut columns in the cabin are installed together. The four sets of racks and four sets of nut columns on the tower column concrete structure are interconnected and coordinated to connect the cabin to the entire concrete structure as a whole, and transmit the driving force of the cabin to the cylinder structure of the ship lift, thereby realizing the up and down movement of the cabin; when the four sets of gear drive systems of the cabin and the four sets of nut column safety locking mechanisms operate synchronously, the four sets of gears operate independently and mutually at the same time; the four sets of safety locking mechanisms operate independently and mutually at the same time; the four sets of gears and the four sets of safety locking mechanisms operate independently and mutually at the same time.

[0003] The relative operating accuracy between the four sets of gears and the four sets of safety locking mechanisms is the guarantee for the normal operation of the cabin. Affected by the relative operating accuracy requirements between the four sets of gears and the four sets of safety locking mechanisms, the design puts forward high standards for the installation accuracy of the drive system and the safety mechanism. Among them, the relative position accuracy deviation of the four sets of racks and four sets of nut columns installed on the tower column concrete structure as the basic unit of the system is required to be no more than 0.1mm; in order to meet the relative accuracy deviation requirements between the four sets of racks and the four sets of nut columns, relative accuracy control is required during the initial installation and positioning stage of the rack nut columns. The traditional total station perspective measurement return method currently used cannot meet the high-precision positioning requirements because the operating process errors and cumulative errors caused by repeated installation of the instrument during measurement are too large. Therefore, it is necessary to design a vertical ship lift installation and positioning method to solve the above problems. Technical issues

[0004] The purpose of the present invention is to provide a method for installing and positioning a vertical ship lift. This solution solves the problem that the operating process errors and cumulative errors caused by repeated installation of instruments during measurement in the existing technology are too large, and cannot meet the high-precision positioning requirements. It has the characteristics of simple operation, safety, time-saving and labor-saving, and can achieve high-precision positioning during on-site installation, thereby ensuring that the equipment installation accuracy meets high standards, improves the project quality, and ensures the safe operation quality of the vertical ship lift. Technical Solutions

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A method for installing and positioning a vertical ship lift comprises the following steps:

[0007] S1, design the vertical ship lift installation positioning reference network according to the ship lift structure layout;

[0008] S2, determining the position of the reference positioning point of the axis of the unobstructed section of the ship lift floor according to the vertical ship lift installation positioning reference network of step S1;

[0009] S3, using the multiple benchmark positioning points confirmed in step S2 as the benchmark origin, by synchronously setting up five high-precision total stations, using the triangulated five-point mutual perspective control method, complete the confirmation of the installation positioning control points of 36 points from 11# to 46# in different areas, and bury the permanent positioning control point device at each installation positioning control point;

[0010] S4, positioning and installing the first reference section of the rack;

[0011] S5, positioning and installing the first reference section of the nut column;

[0012] S6, after the first reference section of the rack nut column is installed, the deployed total station is retrieved;

[0013] S7, install the positioning control device on one side of the first reference section of the rack and the first reference section of the nut column;

[0014] S8, according to the positioning control device installed in step S7, install the remaining lengthened rack and nut column on the first reference section of the rack and the first reference section of the nut column, and use infrared sensing ruler for auxiliary positioning to complete the installation and positioning of all racks and nut columns.

[0015] Preferably, the specific method of step S2 is as follows:

[0016] S201: First, take the 0# point, the center reference positioning point of the building structure axis embedded in the water conservancy center, as the origin, and set up a high-precision total station at the origin;

[0017] S202: Using the four permanent survey benchmarks buried on the slope protection around the building and the five-point mutual perspective control method, the positions of the benchmark positioning points 1#, 2#, 3#, 4#, 5#, and 6# on the unobstructed section of the ship lift floor are determined;

[0018] S203, permanently burying reference point devices at the ship lift bottom plate axis reference positioning points 1#, 2#, 3#, 4#, 5#, and 6# confirmed in step S202, and checking and accepting the installation positions of the permanent reference point devices;

[0019] In step S204, six high-precision total stations are simultaneously set up at the reference positioning points 0#, 1#, 2#, 3#, 4#, 5#, and 6# anchored in steps S201 to S203. The positions of the remaining ship lift bottom plate axis reference positioning points 7#, 8#, 9#, and 10# are simultaneously determined using a triangulated five-point mutual perspective control method.

[0020] S205: Permanent reference point devices are respectively embedded on the ship lift bottom plate axis reference positioning points 7#, 8#, 9# and 10# confirmed in step S204, and the installation positions of the permanent reference point devices are checked and accepted.

[0021] Preferably, in step S203 and step S205, the specific method for checking and accepting the installation position of the permanent positioning reference point device is as follows:

[0022] Using multiple high-precision total stations set up at one station and the triangulated five-point mutual perspective control method, the installation position of the permanent positioning reference point device is checked and accepted.

[0023] Preferably, in step S203 and step S205, the structure of the permanent positioning reference point device is as follows:

[0024] The permanent positioning reference point device includes a first base plate, the upper surface of the first base plate is connected to the first prism base, the surface of the first prism base is provided with a first high-precision light conduction hole, the inner wall of the first high-precision light conduction hole is connected to the first high-sensitivity optical sensor piece to cooperate with the total station, and the center of the first high-sensitivity optical sensor piece is measured and adjusted to align with the total station; the surface of the first prism base is connected to the first level bubble; the lower surface of the first base plate is connected to the first embedded anchor hook; threaded holes are provided at the four corners of the first base plate, and a hemispherical protective cap is provided above the first prism base, and the bottom end of the protective cap is connected to the threaded hole of the first base plate by a fastening bolt.

[0025] Preferably, the structure of the permanent positioning control point device in step S3 is the same as the structure of the positioning control device in step S7; the specific structure of the permanent positioning control point device is as follows:

[0026] The permanent positioning control point device includes a second base plate, the upper surface of the second base plate is connected to the second prism base, the surface of the second prism base is provided with a high-precision screw light conduction hole, and the outer surface of the high-precision screw light conduction hole begins to have an external thread; the inner wall of the high-precision screw light conduction hole is connected to a second high-sensitivity optical sensor piece to cooperate with the total station, and the center of the second high-sensitivity optical sensor piece is measured and adjusted to align with the total station; the surface of the second prism base is connected to a second level bubble; the lower surface of the second base plate is connected to a second embedded anchor hook; an internal thread protective cap is provided above the second prism base and is threadedly connected to the high-precision screw light conduction hole.

[0027] Preferably, in step S4, the method for positioning and installing the first reference section of the rack is as follows:

[0028] At the anchored benchmark positioning points 0#, 1#, 2#, 5# and 6#, five high-precision total stations were set up simultaneously at one station, and the square five-point mutual perspective control method was used to simultaneously complete the positioning and installation of the first benchmark sections of the four sets of racks 1#, 2#, 3# and 4#.

[0029] Preferably, in step S5, the positioning and installation method of the first reference section of the nut column is as follows:

[0030] S501: Keep the total stations at benchmark positioning points 0#, 1#, and 2# stationary, and deploy total stations at anchored benchmark positioning points 3#, 7#, and 10#. Six high-precision total stations are set up simultaneously at one station. Using the triangulated five-point mutual perspective control method, the first benchmark section of the two sets of nut standoffs 1# and 2# are positioned and installed simultaneously.

[0031] S502: Keep the total stations arranged at the benchmark positioning points 0#, 1# and 2# stationary, and transfer the total stations arranged at the benchmark positioning points 3#, 7# and 10# to be arranged at the benchmark positioning points 4#, 8# and 9#, so as to form a station where six high-precision total stations are synchronously set up. Use the triangulated five-point mutual perspective control method to synchronously complete the positioning and installation of the first benchmark sections of the two sets of nut columns 3# and 4#.

[0032] Preferably, in step S8, the structure of the infrared sensing ruler is as follows:

[0033] The infrared sensing ruler includes a ruler rod, one end of which is connected to a base, which is connected to a rack or a nut column; a second high-precision light conduction hole is opened at one end of the ruler rod, and the inner wall of the second high-precision light conduction hole is connected to a third high-sensitivity optical sensor piece; the upper surface of the ruler rod is connected to a third level bubble.

[0034] Preferably, in step S8, the method for assisting positioning by using an infrared sensing ruler is as follows:

[0035] S801, installing nadir plummets on the four sets of positioning control devices deployed in step S7, the nadir plummets emitting infrared rays vertically upward;

[0036] S802: Connect the two sets of infrared sensing scales through the base to the first rack or standoff and the extended rack or standoff to be installed, respectively, so that the second high-precision light conduction hole is in the infrared path of the nadir plummet. Simultaneously, adjust the infrared sensing scales to a level position using the third level bubble.

[0037] S803, observing from top to bottom, make the infrared rays completely coincide with the center of the third high-sensitivity optical sensing piece of the two sets of infrared sensing scales. At this time, the installation and positioning of the rack or nut column to be installed is completed. Beneficial effects

[0038] The beneficial effects of the present invention are:

[0039] 1. The present invention uses the triangular 9-point control method + the square 5-point control method to perform synchronous measurement and return of positioning reference points. All reference points are obtained at one time by one station, eliminating the cumulative error that occurs during multiple installations and measurements between multiple points, thereby improving positioning accuracy.

[0040] 2. After the installation of the first rack nut column is completed, the invention no longer requires the use of instruments such as total stations for subsequent measurements, thus avoiding the time-consuming and labor-intensive process of repeatedly setting up instruments and the accumulation of errors, thereby greatly improving positioning accuracy.

[0041] 3. The present invention solves the impact of various errors on installation accuracy caused by different personnel using different instruments, and repeated installation of the same instrument by the same personnel; the overall solution has high technical content, simple operation, safety, time-saving and labor-saving, and can achieve high-precision positioning for on-site installation, thereby ensuring that the equipment installation accuracy meets high standards, improving project quality, and ensuring the safe operation quality of the vertical ship lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] FIG1 is a plan view of a reference network for installing and positioning a vertical ship lift according to the present invention;

[0043] FIG2 is a schematic diagram of a rack or nut column installation positioning control method according to the present invention;

[0044] FIG3 is a schematic front view of a positioning reference point device according to the present invention;

[0045] FIG4 is a schematic top view of a positioning reference point device according to the present invention;

[0046] FIG5 is a schematic front view of a positioning control point device according to the present invention;

[0047] FIG6 is a schematic top view of a positioning control point device according to the present invention;

[0048] FIG7 is a schematic front view of an infrared sensing ruler according to the present invention;

[0049] FIG8 is a schematic top view of an infrared sensing ruler of the present invention;

[0050] The accompanying drawings are marked as follows: first base plate 11, first prism base 12, first high-precision light conduction hole 13, first high-sensitivity optical sensor sheet 14, first level bubble 15, protective cap 16, fastening bolt 17, second base plate 21, second prism base 22, high-precision screw light conduction hole 23, second high-sensitivity optical sensor sheet 24, second level bubble 25, internal thread protective cap 26, second embedded anchor hook 27, ruler 31, base 32, second high-precision light conduction hole 33, third high-sensitivity optical sensor sheet 34, third level bubble 36, nadir plumb bob 4, first section reference rack 5, and extended rack 6. Modes for Carrying Out the Invention

[0051] Example 1:

[0052] As shown in Figures 1 to 8, a method for installing and positioning a vertical ship lift includes the following steps:

[0053] S1, design the vertical ship lift installation positioning reference network according to the ship lift structure layout;

[0054] S2, determining the position of the reference positioning point of the axis of the unobstructed section of the ship lift floor according to the vertical ship lift installation positioning reference network of step S1;

[0055] S3, using the multiple benchmark positioning points confirmed in step S2 as the benchmark origin, by synchronously setting up five high-precision total stations, using the triangulated five-point mutual perspective control method, complete the confirmation of the installation positioning control points of 36 points from 11# to 46# in different areas, and bury the permanent positioning control point device at each installation positioning control point;

[0056] S4, positioning and installing the first reference section of the rack;

[0057] S5, positioning and installing the first reference section of the nut column;

[0058] S6, after the first reference section of the rack nut column is installed, the deployed total station is retrieved;

[0059] S7, install the positioning control device on one side of the first reference section of the rack and the first reference section of the nut column;

[0060] S8, according to the positioning control device installed in step S7, install the remaining lengthened rack and nut column on the first reference section of the rack and the first reference section of the nut column, and use infrared sensing ruler for auxiliary positioning to complete the installation and positioning of all racks and nut columns.

[0061] Preferably, the specific method of step S2 is as follows:

[0062] S201: First, take the 0# point, the center reference positioning point of the building structure axis embedded in the water conservancy center, as the origin, and set up a high-precision total station at the origin;

[0063] S202: Using the four permanent survey benchmarks buried on the slope protection around the building and the five-point mutual perspective control method, the positions of the benchmark positioning points 1#, 2#, 3#, 4#, 5#, and 6# on the unobstructed section of the ship lift floor are determined;

[0064] S203, permanently burying reference point devices at the ship lift bottom plate axis reference positioning points 1#, 2#, 3#, 4#, 5#, and 6# confirmed in step S202, and checking and accepting the installation positions of the permanent reference point devices;

[0065] In step S204, six high-precision total stations are simultaneously set up at the reference positioning points 0#, 1#, 2#, 3#, 4#, 5#, and 6# anchored in steps S201 to S203. The positions of the remaining ship lift bottom plate axis reference positioning points 7#, 8#, 9#, and 10# are simultaneously determined using a triangulated five-point mutual perspective control method.

[0066] S205: Permanent reference point devices are respectively embedded on the ship lift bottom plate axis reference positioning points 7#, 8#, 9# and 10# confirmed in step S204, and the installation positions of the permanent reference point devices are checked and accepted.

[0067] Preferably, in step S203 and step S205, the specific method for checking and accepting the installation position of the permanent positioning reference point device is as follows:

[0068] Using multiple high-precision total stations set up at one station and the triangulated five-point mutual perspective control method, the installation position of the permanent positioning reference point device is checked and accepted.

[0069] Preferably, in step S203 and step S205, the structure of the permanent positioning reference point device is as follows:

[0070] The permanent positioning reference point device includes a first base plate 11, the upper surface of the first base plate 11 is connected to the first prism base 3212, the surface of the first prism base 3212 is provided with a first high-precision light conduction hole 13, the inner wall of the first high-precision light conduction hole 13 is connected to the first high-sensitivity optical sensor plate 14 to cooperate with the total station to measure and adjust the center of the first high-sensitivity optical sensor plate 14 to align with the total station; the surface of the first prism base 3212 is connected to the first level bubble 15; the lower surface of the first base plate 11 is connected to the first embedded anchor hook; threaded holes are provided at the four corners of the first base plate 11, and a hemispherical protective cap 16 is provided above the first prism base 3212, and the bottom end of the protective cap 16 is connected to the threaded hole of the first base plate 11 by a fastening bolt 17.

[0071] Preferably, the structure of the permanent positioning control point device in step S3 is the same as the structure of the positioning control device in step S7; the specific structure of the permanent positioning control point device is as follows:

[0072] The permanent positioning control point device includes a second base plate 21, the upper surface of the second base plate 21 is connected to the second prism base 3222, the surface of the second prism base 3222 is provided with a high-precision screw light conduction hole 23, and the outer surface of the high-precision screw light conduction hole 23 begins to have an external thread; the inner wall of the high-precision screw light conduction hole 23 is connected to a second high-sensitivity optical sensor piece 24 to cooperate with the total station to measure and adjust the center of the second high-sensitivity optical sensor piece 24 to align with the total station; the surface of the second prism base 3222 is connected to a second level bubble 25; the lower surface of the second base plate 21 is connected to a second embedded anchor hook 27; an internal thread protective cap 26 is provided above the second prism base 3222 and is threadedly connected to the high-precision screw light conduction hole 23.

[0073] Preferably, in step S4, the method for positioning and installing the first reference section of the rack is as follows:

[0074] At the anchored benchmark positioning points 0#, 1#, 2#, 5# and 6#, five high-precision total stations were set up simultaneously at one station, and the square five-point mutual perspective control method was used to simultaneously complete the positioning and installation of the first benchmark sections of the four sets of racks 1#, 2#, 3# and 4#.

[0075] Preferably, in step S5, the positioning and installation method of the first reference section of the nut column is as follows:

[0076] S501: Keep the total stations at benchmark positioning points 0#, 1#, and 2# stationary, and deploy total stations at anchored benchmark positioning points 3#, 7#, and 10#. Six high-precision total stations are set up simultaneously at one station. Using the triangulated five-point mutual perspective control method, the first benchmark section of the two sets of nut standoffs 1# and 2# are positioned and installed simultaneously.

[0077] S502: Keep the total stations arranged at the benchmark positioning points 0#, 1# and 2# stationary, and transfer the total stations arranged at the benchmark positioning points 3#, 7# and 10# to be arranged at the benchmark positioning points 4#, 8# and 9#, so as to form a station where six high-precision total stations are synchronously set up. Use the triangulated five-point mutual perspective control method to synchronously complete the positioning and installation of the first benchmark sections of the two sets of nut columns 3# and 4#.

[0078] Preferably, in step S8, the structure of the infrared sensing ruler is as follows:

[0079] The infrared sensing ruler includes a ruler rod 31, one end of which is connected to a base 32, which is connected to a rack or a nut standoff. A second high-precision light conduction hole 33 is formed at one end of the ruler rod 31, and a third high-sensitivity optical sensor 34 is connected to the inner wall of the second high-precision light conduction hole 33. A third level bubble 36 is connected to the upper surface of the ruler rod 31.

[0080] Preferably, in step S8, the method for assisting positioning by using an infrared sensing ruler is as follows:

[0081] S801: Install a nadir plummet 4 on the four positioning control devices arranged in step S7. The nadir plummet 4 emits infrared rays vertically upwards.

[0082] S802: Connect the two sets of infrared sensing scales to the first rack or standoff and the extended rack or standoff to be installed, respectively, through the base 32. Place the second high-precision light conducting hole 33 in the infrared path of the nadir plumb line 4. Use the third vial 36 to adjust the infrared sensing scales to a horizontal position.

[0083] S803, observing from top to bottom, so that the infrared rays completely coincide with the center of the third high-sensitivity optical sensing piece 34 of the two sets of infrared sensing scales. At this time, the installation and positioning of the rack or nut column to be installed is completed.

[0084] Example 2:

[0085] Step 1: When designing the installation positioning reference network for the vertical ship lift based on the structural layout characteristics of the vertical ship lift, it is necessary to fully consider the actual working conditions on site to ensure that the installation positioning reference network is scientific, reasonable and practical.

[0086] Step 2: Set up a special high-precision total station with the center reference point of the building structure axis embedded in the water conservancy center as the origin. Use the four permanent measurement reference points buried on the slope protection around the building and adopt the five-point mutual perspective control method to determine the position of the axis reference positioning points (1#, 2#, 3#, 4#, 5#, 6#) of the unobstructed section of the ship lift bottom plate. Fully consider the relative position relationship between the proposed reference positioning points and the existing measurement reference points around the building to ensure that the first batch of positioning reference points has no less than 4 points, including the X and Y axes.

[0087] Step 3: When burying the permanent positioning benchmark device at the determined benchmark positioning point, take good protection for the installed total station. If the installed total station is contacted or collided with during construction, the total station needs to be re-installed and calibrated. After the permanent positioning benchmark device is buried and arranged, the installation position of the benchmark device must be verified and accepted using five high-precision total stations set up at one station, using the five-point mutual perspective control method to ensure that the relative errors between the benchmark points buried in the same batch are eliminated.

[0088] Step 4: When burying the positioning reference point device, first after the device is completed, the high-transmittance and wear-resistant prism base 32, high-precision light conduction hole, and high-sensitivity optical sensor piece must be calibrated and qualified; the high-precision light conduction hole on the high-transmittance and wear-resistant prism base 32 is finely drilled, the aperture accuracy deviation is ≤0.01mm, and the aperture inner surface roughness is Ra0.025; the high-sensitivity optical sensor piece uses a special sensor piece that is compatible with the total station used; the stainless steel protective cap 16 should have sufficient strength and sealing to prevent the entire device from being contaminated during construction.

[0089] Step 5: Six high-precision total stations are simultaneously set up at each anchored benchmark point. Using the five-point triangulation method, the remaining ship lift floor axis benchmark points are simultaneously determined. Using the five-point triangulation method, at least five total stations must be set up at a time. Each point must be verified using a perspective method to eliminate relative deviations between observed points within the triangulation area.

[0090] Step 6: Bury a permanent benchmark device at the determined benchmark positioning point, and use 6 high-precision total stations set up at one station to calibrate and accept the installation position of the benchmark device using the triangulated 5-point mutual perspective control method.

[0091] Step 7: Using the buried installation positioning reference point as the reference origin, five high-precision total stations were simultaneously set up, employing the triangulated five-point mutual perspective control method to permanently install 36 installation positioning control points in different areas. The area division adhered to the principles of the triangulated five-point mutual perspective control method. The total stations must be set up at a single location, and all areas must have a common reference point to eliminate relative deviations between all points in different areas.

[0092] Step 8: When installing the positioning control device, first after the device is completed, the high-transmittance and wear-resistant prism base 32, high-precision screw light conduction hole 23, and high-sensitivity optical sensor piece must be inspected and qualified; the high-precision screw light conduction hole 23 on the high-transmittance and wear-resistant prism base 32 is finely drilled, the aperture accuracy deviation is ≤0.01mm, and the aperture inner surface roughness is Ra0.025; the high-precision screw diameter matches the screw hole of the nadir plumb line instrument base 32 to be used; the high-sensitivity optical sensor piece uses a special sensor piece that is compatible with the total station to be used; the stainless steel nut should have sufficient strength and sealing to prevent the entire device from being contaminated during construction.

[0093] Step 9: At the anchored benchmark positioning points, five high-precision total stations are simultaneously set up at one station. Using the five-point square mutual perspective control method, the positioning and installation of the first reference sections of the four rack sets 1#, 2#, 3#, and 4# are completed simultaneously. Using the triangulated five-point method, no fewer than five total stations must be set up at a time. At the same time, each point must be verified using mutual perspective to eliminate relative deviations between the observed points within the triangulated area.

[0094] Step 10: Keep the total station placed on the benchmark positioning points (0#, 1#, 2#) stationary, and deploy the total station on the anchored benchmark positioning points (3#, 7#, 10#), forming a station with 5 high-precision total stations set up simultaneously. Use the triangulated 5-point mutual perspective control method to synchronously complete the positioning and installation of the first benchmark section of the two sets of nut columns 1# and 2#.

[0095] Step 11: Keep the total stations placed on the benchmark positioning points (0#, 1#, 2#) stationary, and transfer the total stations placed on the benchmark positioning points (3#, 7#, 10#) to the benchmark positioning points (4#, 8#, 9#), forming a station with 5 high-precision total stations set up simultaneously. Use the triangulated 5-point mutual perspective control method to synchronously complete the positioning and installation of the first benchmark sections of the 3# and 4# sets of nut columns.

[0096] In steps 10 and 11, when performing installation positioning in different areas, the two use three identical positioning reference points, which fully meets the principle that different areas must have common reference points, thereby ensuring that the relative errors between installation positioning in different areas are eliminated.

[0097] Step 12: After the installation of the first base section of the four sets of rack nut columns is completed, retract the deployed total station.

[0098] Step 13: When installing and positioning the rack standoffs (above the first section), first place the second section of rack / standoffs on the bottom of the first section to complete the inter-section connection. All rack standoffs are factory assembled, inspected, and numbered before shipment. Carefully verify the factory numbers before installation to ensure that they are not mixed.

[0099] Step 14: Install the nadir plumb line 4 on the positioning control device corresponding to the rack / nut column to be installed. Use a high-precision industrial instrument. The fineness of the emitted light should be no greater than 0.05mm and the deviation should be no greater than 0.001mm.

[0100] Step 15: Place an infrared sensor ruler between the installed rack / standoff and the rack / standoff to be installed. Use the infrared sensor ruler to receive the infrared light emitted vertically upward by the laser nadir plummet 4 at the bottom, read the relative data, calculate the deviation, and perform installation positioning based on the deviation calculation results. The measurement data should be read by at least two professional personnel, and they should mutually review the data to avoid errors caused by human error.

[0101] Step 16: When using an infrared measuring scale, it should be custom-made from a professional measuring instrument manufacturer and factory-tested. The ground machining accuracy of the movable base 32 should be ≤0.05mm, and the straightness of the ruler 31 should be ≤0.05mm. The high-precision light transmission holes are precision-drilled, with an aperture accuracy deviation of ≤0.01mm and an inner surface roughness of Ra0.025. The highly sensitive and transparent optical sensor used is compatible with the nadir plumb line instrument.

[0102] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The embodiments and features in the embodiments of this application may be arbitrarily combined with each other unless they conflict. The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent alternatives to the technical features of the technical solutions described in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A method for installing and positioning a vertical ship lift, characterized in that: The following steps are involved: S1, design the vertical ship lift installation positioning reference network according to the ship lift structure layout; S2, according to the vertical ship lift installation positioning reference network of step S1, determine the position of the reference positioning point of the axis of the unobstructed section of the ship lift bottom plate; S3, using the multiple reference positioning points confirmed in step S2 as reference origins, by synchronously setting up five high-precision total stations, using the triangulated five-point mutual perspective control method, completing the confirmation of the installation positioning control points of 36 points from 11# to 46# in different regions, and burying permanent positioning control point devices for each installation positioning control point; S4, positioning and installing the first reference section of the rack; S5, positioning and installing the first reference section of the nut column; S6, after the first reference section of the rack nut column is installed, the deployed total station is retrieved; S7, installing a positioning control device on one side of the first reference section of the rack and the first reference section of the nut column; S8, according to the positioning control device installed in step S7, install the remaining lengthened rack and nut column on the first reference section of the rack and the first reference section of the nut column, and use an infrared sensing ruler for auxiliary positioning to complete the installation and positioning of all racks and nut columns.

2. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: The specific method of step S2 is as follows: S201, firstly, take the 0# point, the central reference positioning point of the building structure axis pre-buried by the water conservancy center, as the origin, and set up a high-precision total station at the origin; S202, using four permanent measurement reference points buried on the slope protection around the building, adopting the five-point mutual perspective control method, complete the position determination of the reference positioning points 1#, 2#, 3#, 4#, 5# and 6# of the axis of the unobstructed section of the ship lift bottom plate; S203, burying permanent positioning reference point devices at the reference positioning points 1#, 2#, 3#, 4#, 5# and 6# of the ship lift bottom plate axis confirmed in step S202, and checking and accepting the installation positions of the permanent positioning reference point devices; S204, at the reference positioning points 0#, 1#, 2#, 3#, 4#, 5# and 6# anchored in steps S201 to S203, six high-precision total stations are synchronously set up at one station, and the positions of the remaining reference positioning points 7#, 8#, 9# and 10# of the bottom plate of the ship lift are synchronously determined by using the triangulated five-point mutual perspective control method; S205, permanent positioning reference point devices are respectively buried on the ship lift bottom plate axis reference positioning points 7#, 8#, 9# and 10# confirmed in step S204, and the installation positions of the permanent positioning reference point devices are checked and accepted.

3. A method for installing and positioning a vertical ship lift according to claim 2, characterized in that: In step S203 and step S205, the specific method for checking and accepting the installation position of the permanent positioning reference point device is as follows: Using multiple high-precision total stations set up at one station and the triangulated five-point mutual perspective control method, the installation position of the permanent positioning reference point device is checked and accepted.

4. A method for installing and positioning a vertical ship lift according to claim 2, characterized in that: In step S203 and step S205, the structure of the permanent positioning reference point device is as follows: The permanent positioning reference point device comprises a first base plate (11), the upper surface of the first base plate (11) is connected to a first prism base (12), the surface of the first prism base (12) is provided with a first high-precision light conduction hole (13), the inner wall of the first high-precision light conduction hole (13) is connected to a first high-sensitivity optical sensor sheet (14) for cooperation with a total station, and the center of the first high-sensitivity optical sensor sheet (14) is measured and adjusted to align with the total station; the surface of the first prism base (12) is connected to a first level bubble (15); the lower surface of the first base plate (11) is connected to a first embedded anchor hook (18); the four corners of the first base plate (11) are provided with threaded holes, a hemispherical protective cap (16) is provided above the first prism base (12), and the bottom end of the protective cap (16) is connected to the threaded hole of the first base plate (11) through a fastening bolt (17).

5. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: The structure of the permanent positioning control point device in step S3 is the same as the structure of the positioning control device in step S7; the specific structure of the permanent positioning control point device is as follows: The permanent positioning control point device comprises a second base plate (21), the upper surface of the second base plate (21) is connected to a second prism base (22), the surface of the second prism base (22) is provided with a high-precision screw light conduction hole (23), and the outer surface of the high-precision screw light conduction hole (23) begins to have an external thread; the inner wall of the high-precision screw light conduction hole (23) is connected to a second high-sensitivity optical sensor sheet (24) for cooperation with a total station, and the center of the second high-sensitivity optical sensor sheet (24) is measured and adjusted to align with the total station; the surface of the second prism base (22) is connected to a second level bubble (25); the lower surface of the second base plate (22) is connected to a second embedded anchor hook (27); and an internal thread protective cap (26) is arranged above the second prism base (22) and is threadedly connected to the high-precision screw light conduction hole (23).

6. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: In step S4, the method for positioning and installing the first reference section of the rack is as follows: At the anchored benchmark positioning points 0#, 1#, 2#, 5# and 6#, five high-precision total stations are set up simultaneously at one station, and the square five-point mutual perspective control method is used to synchronously complete the positioning and installation of the first benchmark sections of the four groups of racks 1#, 2#, 3# and 4#.

7. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: In step S5, the method for positioning and installing the first reference section of the nut column is as follows: S501: Keep the total stations arranged at the reference positioning points 0#, 1# and 2# stationary, and deploy total stations at the anchored reference positioning points 3#, 7# and 10#, so as to form a station where six high-precision total stations are synchronously set up. The triangular five-point mutual perspective control method is used to synchronously complete the positioning and installation of the first reference sections of the two sets of nut columns 1# and 2#; S502, keep the total stations arranged at the reference positioning points 0#, 1# and 2# stationary, transfer the total stations arranged at the reference positioning points 3#, 7# and 10# to the reference positioning points 4#, 8# and 9#, so as to form a station with six high-precision total stations set up simultaneously, and use the triangular five-point mutual perspective control method to synchronously complete the positioning and installation of the first reference sections of the two sets of nut columns 3# and 4#.

8. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: In step S8, the structure of the infrared sensing ruler is as follows: The infrared sensing ruler comprises a ruler rod (31), one end of which is connected to a base (32), and the base (32) is connected to a rack or a nut column; a second high-precision light conduction hole (33) is opened at one end of the ruler rod (31), and a third high-sensitivity optical sensing sheet (34) is connected to the inner wall of the second high-precision light conduction hole (33); and a third level bubble (36) is connected to the upper surface of the ruler rod (31).

9. A method for installing and positioning a vertical ship lift according to claim 1, characterized in that: In step S8, the method of assisting positioning by using an infrared sensing ruler is as follows: S801, installing a nadir plumb line instrument (4) on the four sets of positioning control devices arranged in step S7, the nadir plumb line instrument (4) emitting infrared rays vertically upward; S802, connecting the two sets of infrared sensing rulers to the first section rack or nut column and the extended rack or nut column to be installed through the base (32), so that the second high-precision light conduction hole (33) is located on the infrared path of the nadir plummet (4), and at the same time adjusting the infrared sensing ruler to a horizontal state through the third level bubble (36); S803, observing from top to bottom, so that the infrared rays completely overlap with the center of the third high-sensitivity optical sensing sheet (34) of the two sets of infrared sensing scales, at which time the installation and positioning of the rack or nut column to be installed is completed.

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