Height measuring and adjusting method for dock linear docking block

Abstract

The invention discloses a method for measuring and adjusting the height of a dock linear docking block, which comprises the following steps of: marking a measuring datum line on a dock wall, taking a horizontal plane on which the measuring datum line is positioned as a measuring datum plane, putting a total station on the dock wall to measure each linear docking block, and enabling a measuring sight line to cover the measuring points of all the linear docking blocks. The accuracy of measured data can be effectively ensured; and the method for measuring on the dock wall by using the total station is not influenced by the design height of the linear docking block, is suitable for various working conditions and is wide in application range.

Description

Technical Field

[0001] The invention relates to the technical field of ship dock pier height measurement, and in particular to a height measurement and adjustment method for a ship dock linear dock pier. Background Art

[0002] When a ship is built in a dock or docked for painting for the second time after a sea trial, it is necessary to arrange piers at the bottom of the dock in advance to support the ship body and adjust the ship body to the ground level through the height difference of the piers to facilitate construction.

[0003] Since the bottom surface of the dock will be set with a slope in the length direction and a beam arch in the width direction, it is convenient for the water to flow into the drainage ditch along the slope of the bottom of the dock when draining water from the dock to prevent water accumulation. In addition, after the dock is used for a long time, the cement base surface of the dock bottom will be damaged, causing the dock bottom to be uneven. Therefore, when the on-site construction personnel arrange the linear dock piers according to the dock pier layout diagram, they need to take into account the bottom line of the dock, the potholes on the ground, and the height difference of the linear piers, and make overall horizontal adjustments to all the dock piers. In the past, the overall horizontal adjustment method of the dock pier was to use a horizontal pipe adjustment (see Figure 1 ), first of all, place all cement piers / steel piers in the front, back, left and right positions according to the dock layout diagram. When the dock layout diagram is drawn, the dock height in the flat-bottomed area at the centerline of the ship will be set as the baseline height, so any dock in this area is selected as the reference dock, and its height is the reference height. Use a horizontal tube, fill the horizontal tube with water, place one end A of the horizontal tube at the reference dock, and the other end B / B' at the linear dock. Due to atmospheric pressure and gravity, the liquid levels at both ends of the horizontal tube A and B / B' are level. Mark the liquid level line on the linear dock, which is the baseline. Use a tape measure to measure the height of the top of the linear pier from the baseline, compare it with the theoretical value, and adjust the height of the linear pier accordingly to achieve the purpose.

[0004] This approach has the following disadvantages:

[0005] 1. The length of the horizontal pipe is limited and cannot cover all the docks in the area, so multiple reference docks need to be set up, which is prone to superposition errors. The use of a tape measure during measurement is also prone to manual measurement errors, resulting in low data accuracy.

[0006] 2. This method requires a large working area, and horizontal pipe operation requires at least 2 people. The single measurement time is long, and the single measurement operation covers a small area. It requires multiple repeated operations, which consumes a lot of time and manpower costs.

[0007] 3. The design height of the head and tail linear dock piers is relatively high, which makes it difficult for personnel to operate. Steel inclined ladders or hydraulic lifts are required for auxiliary operation, which consumes a lot of time and cost. Summary of the invention

[0008] In view of this, the present invention provides a method for measuring and adjusting the height of a linear dock pier of a dock, so as to solve the problems existing in the above-mentioned background technology.

[0009] A method for measuring and adjusting the height of a linear dock pier of a dock, specifically comprising the following steps:

[0010] S1, mark the measurement reference line on the top edge of the dock wall in advance, and use the horizontal plane where the measurement reference line is located as the measurement reference plane;

[0011] S2, according to the dock layout diagram, linear dock piers are placed at corresponding positions in the dock, and light targets are posted on the four corners of the linear pier wood at the top of each linear dock pier;

[0012] S3, placing the total station at a designated location on the dock wall;

[0013] S4, use the total station to emit light beams to each light target on each linear pier to measure the vertical distance H from the position of each light target to the measurement reference plane i , i is the total number of light targets posted on the linear dock;

[0014] S5, based on the theoretical depth DW of the dock and the theoretical height Z of the position where the light target is posted on the linear dock i , and the vertical distance H from the position where the light target is posted to the measurement reference surface i , calculate the height adjustment value H of the linear pier at each measuring point, H = DW-Z i -H i ;

[0015] S6, according to the height adjustment value H of the linear pier at each measuring point, the height of the linear pier is adjusted to the desired position by raising the pads or cutting them down;

[0016] S7, use the total station to re-measure the vertical distance H from the position of each light target to the measurement reference surface i The operation is completed when the deviation between the height of all linear dock piers and the theoretical value is within the theoretical error range.

[0017] Preferably, the step of pre-marking the measurement reference line on the top edge of the dock wall in step S1 is:

[0018] Select reference point A and reference point B on the top edge of the dock wall, and post light targets at the locations of reference point A and reference point B;

[0019] Then, find a point on the top of the dock wall that has the same Z-axis coordinates as reference point A and reference point B, and use this point as the location for placing the total station.

[0020] The plane formed by reference point A, reference point B, and the placement position of the total station is the measurement reference plane.

[0021] Preferably, in step S6, according to the height adjustment value H of the linear pier wood at each measuring point, the specific steps of adjusting the height of the linear pier wood to the desired position by raising the pier wood or cutting and lowering the pier wood are:

[0022] When the height adjustment value H of the linear pier at a certain measuring point is a positive value, the linear pier at the measuring point is cut to reduce its height;

[0023] When the height adjustment value H of the linear pier at a certain measuring point is a negative value, the height of the linear pier is raised by adding pads on the surface of the linear pier at the measuring point.

[0024] Preferably, the theoretical depth DW of the dock and the theoretical height Z of the position where the optical target is posted on the linear dock are i Obtained from the dock layout drawing.

[0025] Preferably, in step S7, the deviation between the height of all linear dock piers and the theoretical value should be controlled within ±5 mm.

[0026] Preferably, the optical target is a cross target.

[0027] The beneficial effects of the present invention are:

[0028] 1. The present invention marks a measurement reference line on the dock wall, uses the horizontal plane where the measurement reference line is located as the measurement reference plane, and then places the total station on the dock wall to measure each linear dock pier. The measurement line of sight can cover the measurement points of all linear dock piers, which can effectively ensure the accuracy of the measurement data.

[0029] 2. The present invention places the total station on the dock wall for measurement, which can overlook all the linear dock piers in the dock. Only one surveyor is needed to complete the measurement, and when measuring, the total station only needs to be placed at a selected position. There is no need to move the total station or adjust the position of the total station back and forth, and the measurement of all linear dock piers can be easily completed. Compared with the horizontal tube measurement, the measurement efficiency is greatly improved, and the single measurement speed is very fast, which greatly saves time and labor costs. In addition, the accuracy of the total station can reach millimeter level, the measurement data is highly accurate, and the measurement accuracy is improved.

[0030] 3. The method of measuring on the dock wall using a total station is not affected by the design height of the linear dock pier, is applicable to various working conditions, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a schematic diagram of using a horizontal tube to measure and adjust the dock pier.

[0033] Figure 2 It is a schematic diagram of the layout of linear dock piers.

[0034] Figure 3 This is a schematic diagram of the projection distance from the measuring point at the center of the light target to the measuring reference surface when measuring with a total station.

[0035] Figure 4 It is a schematic diagram of using a total station to measure the vertical distance from the location of each light target on all dock piers to the measurement reference plane.

[0036] Figure 5 It is a schematic diagram of using a total station to measure the vertical distance from the location of each light target on all dock piers to the measurement reference plane.

[0037] The meanings of the numbers in the figure are:

[0038] 1 is the dock wall, 2 is the total station, 3 is the linear dock pier, 4 is the linear pier wood, 5 is the optical target, 6 is the cement pier / steel pier, 7 is the measuring point, and 8 is the projection point. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0040] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0041] In order to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings.

[0042] The present invention provides a method for measuring and adjusting the height of a linear dock pier of a dock, which specifically comprises the following steps:

[0043] S1, mark a measurement reference line on the top edge of the dock wall 1 in advance, and use the horizontal plane where the measurement reference line is located as the measurement reference plane.

[0044] Specifically, firstly, a reference point A and a reference point B are selected on the top edge of the dock wall, and light targets are posted at the locations of the reference points A and B;

[0045] Then, find a point on the top of the dock wall 1 that has the same Z-axis coordinates as the reference point A and the reference point B, and use this point as the placement position of the total station 2;

[0046] The plane formed by reference point A, reference point B, and the placement position of the total station is the measurement reference plane.

[0047] Due to the slope and beam arch of the dock bottom, measurement at the dock bottom not only has limited line of sight, but the slope and beam arch of the dock bottom will also affect the measurement accuracy. Therefore, this application sets the total station on the dock wall. By measuring each linear pier on the dock wall, the measurement line of sight can easily cover the measurement points of all linear piers, and the top surface of the dock wall is flat, which can ensure the accuracy of the measurement data.

[0048] S2, placing linear dock piers 3 at corresponding positions in the dock according to the dock layout diagram, and posting light targets 5 at the four corners of the linear pier wood 4 at the top of each linear dock pier.

[0049] Linear dock piers 3 are distributed in the places where the outer plate lines are larger in the bow and stern areas in the ship's length direction and in the places where the lines are larger in the side areas in the ship's width direction, such as Figure 2 shown.

[0050] The linear dock pier 3 is composed of a bottom cement pier / steel pier 6 and a linear pier wood 4. The linear pier wood 4 is fixed on the surface of the cement pier / steel pier 6. The cement pier / steel pier 6 is a standard part with fixed size and plays a role of rigid support. The linear pier wood 4 is processed and manufactured according to the theoretical linear shape of the outer plate.

[0051] S3, placing the total station 2 at a designated position on the dock wall 1, that is, placing the total station 2 at the placement position determined in step S1.

[0052] S4, using the total station 2 to emit light beams to each light target 5 on each linear pier 4, so as to measure the vertical distance H from the position of each light target to the measurement reference plane i , i is the total number of light targets posted on the linear dock.

[0053] When the total station 2 beam hits the center of the light target, the projection distance from the measuring point at the center of the light target to the measuring reference surface ( Figure 3The distance Z1) is the vertical distance H from the position of the light target to the measurement reference surface. i .

[0054] As shown Figure 4 As shown, Figure 4 H1~H6 are the vertical distances from the measured positions of the light targets to the measurement reference plane.

[0055] S5, based on the theoretical depth DW of the dock and the theoretical height Z of the position where the light target is posted on the linear dock i , and the vertical distance H from the position where the light target is posted to the measurement reference surface i , calculate the height adjustment value H of the linear pier at each measuring point, H = DW-Z i -H i .

[0056] The theoretical depth DW of the dock and the theoretical height Z of the position where the optical target is posted on the linear dock pier 3 i Obtained from the dock layout drawing.

[0057] S6, according to the height adjustment value H of the linear pier 3 at each measuring point, the height of the linear pier is adjusted to the desired position by raising it with pads or cutting it down.

[0058] When the height adjustment value H of the linear pier 4 at a certain measuring point is a positive value, the linear pier 4 at the measuring point is cut to reduce its height, and the cutting height of the linear pier is H;

[0059] When the height adjustment value H of the linear pier 4 at a certain measuring point is a negative value, pads are added to the surface of the linear pier 4 at the measuring point to raise its height, and the height of the added pads is |H|.

[0060] S7, use the total station to re-measure the vertical distance H from the position of each light target to the measurement reference surface i , when the deviation between the height of all linear dock piers 3 and the theoretical value is within the theoretical error range, the operation is completed.

[0061] The height deviation of all linear dock piers 3 from the theoretical value should be controlled within ±5mm.

[0062] In this embodiment, the light target 5 is a cross target.

[0063] It should be clear that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Claims

1. A method for measuring and adjusting the height of a linear dock pier, characterized in that: The specific steps include: S1, mark the measurement reference line on the top edge of the dock wall in advance, and use the horizontal plane where the measurement reference line is located as the measurement reference plane; S2, according to the dock layout diagram, linear dock piers are placed at corresponding positions in the dock, and light targets are posted on the four corners of the linear pier wood at the top of each linear dock pier; S3, placing the total station at a designated location on the dock wall; S4, use the total station to emit light beams to each light target on each linear pier to measure the vertical distance H from the position of each light target to the measurement reference plane i , i is the total number of light targets posted on the linear dock; S5, based on the theoretical depth DW of the dock and the theoretical height Z of the position where the light target is posted on the linear dock i , and the vertical distance H from the position where the light target is posted to the measurement reference surface i , calculate the height adjustment value H of the linear pier at each measuring point, H = DW-Z i -H i ; S6, according to the height adjustment value H of the linear pier at each measuring point, the height of the linear pier is adjusted to the desired position by raising the pads or cutting them down; S7, use the total station to re-measure the vertical distance H from the position of each light target to the measurement reference surface i The operation is completed when the deviation between the height of all linear dock piers and the theoretical value is within the theoretical error range.

2. The method for measuring and adjusting the height of a linear dock pier according to claim 1, characterized in that: The steps of pre-marking the measurement reference line on the top edge of the dock wall in step S1 are: Select reference point A and reference point B on the top edge of the dock wall, and post light targets at the locations of reference point A and reference point B; Then, find a point on the top of the dock wall that has the same Z-axis coordinates as reference point A and reference point B, and use this point as the location for placing the total station. The plane formed by reference point A, reference point B, and the placement position of the total station is the measurement reference plane.

3. The method for measuring and adjusting the height of a linear dock pier according to claim 1, characterized in that: In step S6, according to the height adjustment value H of the linear pier at each measuring point, the specific steps of adjusting the height of the linear pier by padding or cutting the pier are as follows: When the height adjustment value H of the linear pier at a certain measuring point is a positive value, the linear pier at the measuring point is cut to reduce its height; When the height adjustment value H of the linear pier at a certain measuring point is a negative value, the height of the linear pier is raised by adding pads on the surface of the linear pier at the measuring point.

4. The method for measuring and adjusting the height of a linear dock pier according to claim 1, characterized in that: The theoretical depth DW of the dock and the theoretical height Z of the position where the light target is posted on the linear dock i Obtained from the dock layout drawing.

5. The method for measuring and adjusting the height of a linear dock pier according to claim 1, characterized in that: In step S7, the deviation between the height of all linear dock piers and the theoretical value should be controlled within ±5 mm.

6. The method for measuring and adjusting the height of a linear dock pier according to claim 1, characterized in that: The optical target is a cross target.

Images