A method for installing and positioning a vertical ship lift

Abstract

The invention discloses a method for installing and positioning a vertical ship lift. The method designs a reference network for installing and positioning the vertical ship lift according to the arrangement position of the ship lift structure. Then, the reference positioning points of the axis of the unobstructed section of the bottom plate of the ship lift and the installation positioning control points are confirmed in sequence by cooperating with multiple total stations and the reference points. A step-by-step method is adopted when confirming the points. The points confirmed last time are used as reference points to determine the subsequent points. In the process of point determination, a positioning reference point device and a positioning control point device are successively embedded. The rack and the nut column are positioned and installed through the confirmed reference positioning points and the installation positioning control points. The method has high technical content, is simple to operate, is safe, and saves time and effort. It can realize high-precision positioning for on-site installation, thereby ensuring that the equipment installation accuracy meets high standards, improves the engineering quality, and ensures the safe operation quality of the vertical ship lift.

Description

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-gear climbing counterweight vertical shiplift. It is the world's first large-scale vertical shiplift driven by rack-and-gear and with a long nut and short screw as a safety locking mechanism. The Three Gorges Shiplift uses rack-and-gear as a driving system, and the screw and the safety screw work together with the driving system to achieve safe and stable operation of the shiplift. The rack is the force transmission component of the cabin drive mechanism to the concrete tower column and also serves as the lateral guide rail of the cabin. The nut column is the force transmission component of the cabin safety mechanism to the concrete tower column. The cabin has four sets of drive racks and four sets of nut columns, which are installed with The four sets of racks and four sets of nut columns on the tower column concrete structure are interconnected and cooperated with each other, so that the cabin is connected to the entire concrete structure as a whole, and the driving force of the cabin is transmitted 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 individually and mutually at the same time; the four sets of safety locking mechanisms operate individually and mutually at the same time; the four sets of gears and the four sets of safety locking mechanisms operate individually 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, it is necessary to perform relative accuracy control 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 the 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. Summary of the invention

[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 error and the cumulative error are too large due to the repeated installation of instruments during measurement in the prior art, and the high-precision positioning requirements cannot be met. The method has the characteristics of simple and safe operation, 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 the project quality, and ensuring the safe operation quality of the vertical ship lift.

[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, 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;

[0009] 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;

[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, 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;

[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 an 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, 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;

[0017] 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;

[0018] 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;

[0019] 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;

[0020] 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.

[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 sheet to cooperate with the total station, and the center of the first high-sensitivity optical sensor sheet 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 arranged at the four corners of the first base plate, and a hemispherical protective cap is arranged 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 a second prism base, a high-precision screw light conduction hole is opened on the surface of the second prism base, and an external thread begins to appear on the outer surface of the high-precision screw light conduction hole; a second high-sensitivity optical sensor piece is connected to the inner wall of the high-precision screw light conduction hole 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; a second level bubble is connected to the surface of the second prism base; a second embedded anchor hook is connected to the lower surface of the second base plate; an internal thread protective cap is arranged 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 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#.

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

[0030] 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#;

[0031] 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#.

[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 a third high-sensitivity optical sensor is connected to the inner wall of the second high-precision light conduction hole; and a third level bubble is connected to the upper surface of the ruler rod.

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

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

[0036] S802, connect the two sets of infrared sensing rulers to the first section of the rack or nut column and the extended rack or nut column to be installed through the base, so that the second high-precision light conduction hole is on the infrared path of the nadir plummet, and adjust the infrared sensing ruler to be in a horizontal state through the third level bubble;

[0037] S803, observe from top to bottom, so that the infrared rays completely overlap 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.

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

[0039] 1. The present invention uses the triangular 9-point control method + square 5-point control method to perform synchronous measurement and return of positioning reference points. All reference points are obtained at one time in one station, eliminating the cumulative errors that occur during multiple installation and measurement processes between multiple points, and improving positioning accuracy;

[0040] 2. After the installation of the basic section, i.e. the first section of the rack nut column, is completed, the invention does not need to use a total station or other instruments for subsequent measurement, which can avoid the time-consuming and laborious process of repeatedly setting up instruments and the accumulation of errors, and greatly improve the 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, improves project quality, and ensures the safe operation quality of the vertical ship lift. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A plan layout diagram of a positioning reference network for installing a vertical ship lift of the present invention;

[0043] Figure 2 It is a schematic diagram of the rack or nut column installation positioning control method of the present invention;

[0044] Figure 3 It is a front view schematic diagram of the positioning reference point device of the present invention;

[0045] Figure 4 It is a top view schematic diagram of the positioning reference point device of the present invention;

[0046] Figure 5 It is a front view schematic diagram of the positioning control point device of the present invention;

[0047] Figure 6 is a top view schematic diagram of a positioning control point device of the present invention;

[0048] Figure 7 It is a schematic diagram of the front view of the infrared sensing ruler of the present invention;

[0049] Figure 8 is a schematic top view of the infrared sensing ruler of the present invention;

[0050] The reference numerals in the figure are: 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. DETAILED DESCRIPTION

[0051] Embodiment 1:

[0052] like Figure 1 to Figure 8 As shown, a method for installing and positioning a vertical ship lift comprises the following steps:

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

[0054] 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;

[0055] 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;

[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, 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;

[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 an 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, 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;

[0063] 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;

[0064] 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;

[0065] 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;

[0066] 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.

[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 a 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 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; a first level bubble 15 is connected to the surface of the first prism base 3212; a first embedded anchor hook is connected to the lower surface of the first base plate 11; threaded holes are arranged at the four corners of the first base plate 11, a hemispherical protective cap 16 is arranged 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 a second prism base 3222, a high-precision screw light conduction hole 23 is opened on the surface of the second prism base 3222, 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 to cooperate with the 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 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 threaded protective cap 26 is arranged 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 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#.

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

[0076] 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#;

[0077] 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#.

[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, 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 sensor sheet 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 of assisting positioning by using an infrared sensing ruler is as follows:

[0081] S801, installing a nadir plumb line 4 on the four sets of positioning control devices arranged in step S7, the nadir plumb line 4 emitting infrared rays vertically upward;

[0082] S802, connect the two sets of infrared sensing rulers to the first 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 on the infrared path of the nadir plumb line 4, and adjust the infrared sensing ruler to be in a horizontal state through the third level bubble 36;

[0083] 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 this time, the installation and positioning of the rack or nut column to be installed is completed.

[0084] Embodiment 2:

[0085] Step 1: According to the structural layout characteristics of the vertical ship lift, when designing the vertical ship lift installation positioning reference network, it is necessary to fully combine 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 pre-anchored by the water conservancy center as the origin. Use the four permanent measurement reference points buried on the slope around the building and adopt the five-point mutual perspective control method to determine the positions of the axis reference positioning points (1#, 2#, 3#, 4#, 5#, 6#) of the unobstructed section of the ship lift bottom plate. Take full account of 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 is 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 checked and accepted using the 5-point mutual perspective control method using 5 high-precision total stations installed at one station to ensure that the relative errors between benchmarks buried in the same batch are eliminated.

[0088] Step 4: When burying the positioning reference point device, first after the device is manufactured, a set of measuring and positioning devices including the high-transmittance and wear-resistant prism base 32, high-precision light conduction holes, and high-sensitivity optical sensor plates must be calibrated and qualified; the high-precision light conduction holes on the high-transmittance and wear-resistant prism base 32 are finely drilled, with an aperture accuracy deviation of ≤0.01mm and an aperture inner surface roughness of Ra0.025; the high-sensitivity optical sensor plate adopts a special sensor plate 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: At the anchored benchmark positioning point, 6 high-precision total stations are set up at one station, and the triangulated 5-point mutual perspective control method is used to synchronously complete the position determination of the remaining ship lift bottom plate axis benchmark positioning points. Using the triangulated 5-point method, no less than 5 total stations must be set up at one time, and each point must be checked by mutual perspective to eliminate the relative deviation between the observed points in the triangulated area.

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

[0091] Step 7: Taking the buried installation positioning reference point as the reference origin, by synchronously setting up 5 high-precision total stations, using the triangulated 5-point mutual perspective control method, complete the permanent buried layout of 36 installation positioning control points in different regions. The regional division follows the principle of satisfying the triangulated 5-point mutual perspective control method. The total station must be set up at one station, and there must be a common reference point between all regions to meet the requirements of eliminating the relative deviation of all points between different regions.

[0092] Step 8: When installing the positioning control device, first after the device is manufactured, a set of measuring and positioning devices including the high-transmittance and wear-resistant prism base 32, the high-precision screw light conduction hole 23, and the high-sensitivity optical sensor must be calibrated 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 inner surface roughness of the aperture is Ra0.025; the diameter of the high-precision screw matches the screw hole of the nadir plumb line instrument base 32 to be used; the high-sensitivity optical sensor uses a special sensor that is compatible with the total station 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 point, 5 high-precision total stations are set up at one station, and the square 5-point mutual perspective control method is used to synchronously complete the positioning and installation of the first benchmark sections of the four rack groups 1#, 2#, 3#, and 4#. Using the triangular 5-point method, no less than 5 total stations must be set up at one time, and each point must be calibrated by mutual perspective to eliminate the relative deviation between the observed points in the triangular 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 where 5 high-precision total stations are synchronously set up. Use the triangular 5-point mutual perspective control method to synchronously complete the positioning and installation of the first benchmark sections of the two sets of nut columns 1# and 2#.

[0095] Step 11: Keep the total station arranged at the benchmark positioning points (0#, 1#, 2#) stationary, and transfer the total station arranged at the benchmark positioning points (3#, 7#, 10#) to the benchmark positioning points (4#, 8#, 9#), forming a station where 5 high-precision total stations are synchronously set up. Use the triangular 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 3# and 4#.

[0096] In step 10 and step 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 first base section of the four sets of rack nut columns are installed, retract the deployed total station.

[0098] Step 13: When installing and positioning the rack nut column (above the first section), first place the rack / nut column to be installed on the first section rack / nut column installed at the bottom to complete the inter-section connection. The rack nut column has completed the factory assembly acceptance and numbering before leaving the factory. Before installation, carefully check the factory number to ensure that there is no mixed installation.

[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 not be greater than 0.05mm, and the deviation should not be greater than 0.001mm.

[0100] Step 15: Arrange an infrared sensing ruler between the installed rack / nut column and the rack / nut column to be installed, use the infrared sensing ruler to receive the infrared rays emitted vertically upward by the bottom laser nadir plummet 4, read the relative data and calculate the deviation, and perform installation positioning according to the deviation calculation results. The reading of measurement data should be the responsibility of no less than 2 professional and dedicated personnel, and they should check the data with each other to avoid errors caused by human errors.

[0101] Step 16: When using an infrared sensing ruler, the infrared sensing ruler should be customized from a professional measuring instrument manufacturer and qualified before leaving the factory. The ground processing accuracy deviation of the mobile base 32 is ≤0.05mm, the straightness processing accuracy deviation of the ruler 31 is ≤0.05mm, the high-precision light conduction hole is finely drilled, the aperture accuracy deviation is ≤0.01mm, and the inner surface roughness of the aperture is Ra0.025; the high-sensitivity and high-transparency optical sensor used is matched with the nadir plumb line instrument.

[0102] The above-mentioned embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The embodiments and features in the embodiments of the present application can be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope 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, the position of the reference positioning point of the axis of the unobstructed section of the ship lift bottom plate is determined, and the specific method 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, burying permanent positioning reference point devices at the reference positioning points 7#, 8#, 9# and 10# of the ship lift bottom plate axis confirmed in step S204, and checking and accepting the installation positions of the permanent positioning reference point devices; 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: 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.

3. A method for installing and positioning a vertical ship lift according to claim 1, 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).

4. 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 (21) is connected to a second embedded anchor hook (27); 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).

5. 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#.

6. 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#.

7. 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).

8. 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.

Images