Height adjusting method for horizontal docking block of dock

Abstract

The invention discloses a method for adjusting the height of a horizontal docking block of a dock. The method sequentially comprises the steps that S1, a datum line is drawn on the ground of any side of the dock; s2, setting a measuring point at the central position of the top of the horizontal docking block, and setting a total station on the dock ground; s3, measuring and recording the vertical distance between each horizontal docking block and the datum line; s4, one horizontal docking block is selected as a height reference docking block, other horizontal docking blocks are selected as other docking blocks, difference values between the other docking blocks and the height reference docking block are calculated, if the difference values are all within the set height deviation range, the step S6 is executed, and if the difference values are not within the set height deviation range, the step S5 is executed; s5, adjusting the heights of other docking blocks according to the difference values, and repeating the steps S3-S5 again until all the difference values are within the set height deviation range; and S6, ending the height adjustment of the horizontal docking block of the dock. According to the docking block height adjusting device, labor cost and time cost are reduced, operation is easy, high-altitude operation is avoided, and the safety and precision of docking block height adjusting are improved.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a method for adjusting the height of a horizontal dock pier of a dock. Background Art

[0002] After the ship is built or sea trialed in the dock, it needs to enter the dock again for outer plate painting. The dock bottom is equipped with horizontal dock piers, which are distributed at the flat bottom parallel to the middle of the ship. In order to facilitate the construction, the ship needs to ensure that the hull is parallel to the ground after the dock is set. Therefore, the height line of the horizontal dock pier in the dock needs to be parallel to the baseline of the ship, such as Figure 1 As shown. In order to avoid water accumulation in the dock, the dock bottom surface will be set with a slope in the length direction and a beam arch in the width direction, so that the water will flow into the drainage ditch along the slope of the dock bottom when draining water from the dock. 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 dock piers according to the dock pier layout diagram, they need to consider the bottom line shape of the dock and the potholes on the ground, and adjust all the dock piers horizontally. Figure 2 As shown, the method for adjusting the level of the dock pier is usually to use a horizontal pipe. After all the horizontal dock piers are put in place, a reference dock pier is selected in the centerline area of ​​the entire length of the ship and where there are no potholes in the dock bottom. The height of this dock pier is used as the reference height. Then a water-filled horizontal pipe is used. One end of the horizontal pipe is placed at the reference dock pier, and the other end is placed at the dock pier that needs to be leveled. Due to the factors of atmospheric pressure and gravity, the liquid level in the horizontal pipe at the reference dock pier is adjusted to make the liquid level in the horizontal pipe level with the height of the reference dock pier. The liquid level in the horizontal pipe at the other end of the dock pier that needs to be adjusted is the reference height. After measuring the difference between the liquid level in the horizontal pipe and the height of the dock pier that needs to be leveled, the height of the corresponding dock pier pads is adjusted according to this value, thereby achieving the purpose of adjusting all the dock piers to the same level.

[0003] However, the method of adjusting the height of the horizontal dock by means of the horizontal pipe has the following disadvantages: the length of the horizontal pipe is limited and cannot cover the docks in all areas, and multiple reference docks need to be set up, which is prone to superposition errors and low horizontal accuracy; since the horizontal docks are arranged in a wide area, multiple people are required to operate the horizontal pipe, and the single measurement time of the horizontal pipe is long, and the single measurement operation covers a small area, requiring repeated operations. The personnel who adjust the dock height need to wait for the surveyors to provide data before they can operate, and if the dock is designed to be high, an escalator must be equipped for high-altitude operations, which is difficult to operate, unsafe, and consumes a lot of time and manpower costs. Summary of the invention

[0004] In view of the defects existing in the prior art, the present application provides a method for adjusting the height of the horizontal dock piers of a dock to solve the technical problems in the prior art such as low accuracy of height adjustment of the horizontal dock piers of the dock, great difficulty in operation, low safety, and high time and manpower costs.

[0005] In order to achieve the purpose of the above invention, the technical solution provided by the present invention is as follows:

[0006] A method for adjusting the height of a horizontal dock pier of a dock comprises the following steps: S1: drawing a reference line on the ground on either side of the dock;

[0007] S2: Place horizontal dock piers at the bottom of the dock according to the dock pier layout diagram, set a measuring point at the center of each horizontal dock pier, fix a cross reflective target at each measuring point, and set a total station on the ground on either side of the dock. The total station can measure all measuring points at the bottom of the dock;

[0008] S3: Define the vertical distance between each measuring point and the baseline as the measured value of the horizontal dock where the measuring point is located, use the point detection mode of the total station to measure the measured values ​​of all horizontal docks, and record the measured value of each horizontal dock;

[0009] S4: Analyze the measurement values ​​of all horizontal docks, select one horizontal dock as the height reference dock, and the other horizontal docks as other docks, calculate the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference dock, if the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference docks are all within the set height deviation range, then enter S6, if the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference docks is not within the set height deviation range, then enter S5;

[0010] S5: according to the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier, the positions of other dock piers that need to be adjusted and the corresponding adjusted heights are obtained. After adjusting the heights of other dock piers, S3-S5 are repeated again until the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier is within the set height deviation range;

[0011] S6: Finish adjusting the height of the horizontal dock pier.

[0012] In one embodiment, in S3, the surface where the position point of the total station on the ground at the dock side and the reference line are located is taken as the reference surface, and the vertical distance between the measuring point and the reference line is the distance between the measuring point and the projection point of the measuring point on the reference surface.

[0013] In one embodiment, in S3, there are n horizontal docks at the bottom of the dock, and the measurement value of the nth horizontal dock is defined as hn; in S4, the horizontal dock where the min{h1, h2, …, hn} measurement value is located is taken as the height reference dock, and the difference between the measurement value of other docks and the measurement value of the height reference dock is defined as Δhn, then Δhn = hn-min{h1, h2, …, hn}; in S5, the corresponding adjustment height of other dock positions that need to adjust the height is Δhn.

[0014] In one implementation, the height deviation range is set within ±5 mm. In S4, if -5 mm ≤ Δhn ≤ 5 mm, the process proceeds to S6.

[0015] In one embodiment, the reference line and the total station are located on the ground on the same side of the dock.

[0016] In one embodiment, the horizontal dock is a cement dock, which includes a cement pier, a pad and a rubber pad from bottom to top. The cement pier is a standard part of fixed size, the pad is composed of two wedge-shaped wooden blocks and a plurality of thin wood slices, and the rubber pad plays a buffering and protective role for the paint of the hull outer plate.

[0017] In one embodiment, in S5, the height of the dock is adjusted by changing the height of the wedge-shaped wood blocks and the number of veneers.

[0018] In one embodiment, reference point A and reference point B are selected on the reference line, and cross targets are posted at reference point A and reference point B.

[0019] Compared with the prior art, this application has at least the following beneficial effects:

[0020] In the present invention, a reference line is drawn on the ground at the side of the dock, and a total station that can measure all the horizontal piers at the bottom of the dock is set on the ground at the side of the dock. Through the cooperation of the reference line and the total station, only one person is needed to operate to obtain the height adjustment amount of the horizontal piers, which not only reduces labor costs and time costs, but also is simple to operate, avoids high-altitude operations, and improves the safety of dock pier height adjustment.

[0021] The reference line of the invention is set on the ground at the side of the dock, and is not affected by the slope and height difference of the dock bottom during measurement, and can be applied to various working conditions. The height adjustment amount of the horizontal dock pier is measured by a total station, and the measurement accuracy is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a top view of the distribution of horizontal dock piers in the dock;

[0023] Figure 2 yes Figure 1 AA section view;

[0024] Figure 3 It is a schematic diagram of adjusting the height of the horizontal dock pier by a horizontal pipe in the prior art;

[0025] Figure 4 1. It is a schematic top view of the measurement of the height of the horizontal dock pier of the dock in the embodiment of the present application;

[0026] Figure 5 yes Figure 4 Middle BB section view;

[0027] Figure 6 It is a side view schematic diagram of the height adjustment of the horizontal dock pier in the embodiment of the present application.

[0028] Figure numerals: 1. ship; 2. total station; 201. position point; 3. reference line; 301. reference point A; 302. reference point B; 4. measuring point; 5. reference plane; 6. dock; 7. horizontal dock pier; 701. cement pier; 702 pad; 703. rubber pad. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms and should not be understood as indicating or implying relative importance. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0032] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0033] 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.

[0034] like Figure 4-6 The present application provides a method for adjusting the height of a horizontal dock pier of a dock, comprising the following steps:

[0035] S1: Draw a reference line 3 on the ground on either side of the dock;

[0036] S2: Place horizontal dock piers 7 at the bottom of the dock according to the dock pier layout diagram, set a measuring point 4 at the center of the top of each horizontal dock pier 7, fix a cross reflective target on each measuring point 4, and set a total station 2 on the ground on either side of the dock 6. The total station 2 can measure all the measuring points 4 at the bottom of the dock;

[0037] S3: define the vertical distance between each measuring point 4 and the reference line 3 as the measurement value of the horizontal dock pier where the measuring point is located, use the point detection mode of the total station to measure the measurement values ​​of all horizontal dock piers 7, and record the measurement value of each horizontal dock pier 7;

[0038] S4: Analyze the measured values ​​of all horizontal dock piers 7, select one horizontal dock pier 7 as the height reference dock pier, and the other horizontal dock piers 7 as other dock piers, calculate the difference between the measured values ​​of the other dock piers and the measured values ​​of the height reference dock pier, if the difference between the measured values ​​of the other dock piers and the measured values ​​of the height reference dock pier are all within the set height deviation range, then enter S6, if the difference between the measured values ​​of the other dock piers and the measured values ​​of the height reference dock pier is not within the set height deviation range, then enter S5;

[0039] S5: according to the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier, the positions of other dock piers that need to be adjusted and the corresponding adjusted heights are obtained. After adjusting the heights of other dock piers, S3-S5 are repeated again until the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier is within the set height deviation range;

[0040] S6: Finish adjusting the height of the horizontal dock pier.

[0041] In S3, the position point of the total station 2 on the ground at the side of the dock and the surface where the reference line 3 is located are taken as the reference surface 5, and the vertical distance between the measuring point 4 and the reference line 3 is the distance between the measuring point 4 and the projection point of the measuring point 4 on the reference surface 5. By setting the reference surface, the total station 2 can measure more accurately.

[0042] In S3, there are n horizontal dock piers 8 at the bottom of the dock, and the measurement value of the nth horizontal dock pier 8 is defined as hn, and the height value of the nth horizontal dock pier is Hn, such as Figure 5 As shown, the larger the hn value is, the smaller the height Hn value of the nth horizontal dock pier is; in S4, the horizontal dock pier where the min{h1, h2, …, hn} measurement value is located is taken as the height reference dock pier, and the difference between the measurement value of other dock piers and the measurement value of the height reference dock pier is defined as Δhn, then Δhn=hn-min{h1, h2, …, hn}; in S5, the corresponding adjustment height of other dock pier positions that need to adjust the height is Δhn.

[0043] In this embodiment, the height deviation range is set within ±5 mm. In S4, if -5 mm ≤ Δhn ≤ 5 mm, the process proceeds to S6. For ease of operation, the reference line 3 and the total station 2 are located on the ground at the same side of the dock.

[0044] In this embodiment, the horizontal dock is a cement dock, which includes a cement pier 701, a cushion 702 and a rubber pad 703 from bottom to top. The cement pier 701 is a standard part with fixed size and plays a rigid support role. The cushion 702 is composed of two wedge-shaped wooden blocks and a plurality of thin wood pieces. Figure 6 The embodiment shown in the figure adjusts the dock height by changing the height of the wedge-shaped wooden block and the number of thin wood slices; the rubber pad 703 is a standard part, which plays a buffering and protective role on the paint of the hull outer plate. In order to ensure that the same reference line 3 is used for each adjustment of the dock height, reference points A301 and B302 are selected on the reference line 3, and cross targets are posted at reference points A301 and B302 to facilitate the drawing of the reference line for the next adjustment.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A method for adjusting the height of a horizontal dock pier, characterized in that: The following steps are involved: S1: Draw a reference line on the ground on either side of the dock; S2: Place horizontal dock piers at the bottom of the dock according to the dock pier layout diagram, set a measuring point at the center of each horizontal dock pier, fix a cross reflective target at each measuring point, and set a total station on the ground on either side of the dock. The total station can measure all measuring points at the bottom of the dock; S3: Define the vertical distance between each measuring point and the baseline as the measured value of the horizontal dock where the measuring point is located, use the point detection mode of the total station to measure the measured values ​​of all horizontal docks, and record the measured value of each horizontal dock; S4: Analyze the measurement values ​​of all horizontal docks, select one horizontal dock as the height reference dock, and the other horizontal docks as other docks, calculate the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference dock, if the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference docks are all within the set height deviation range, then enter S6, if the difference between the measurement values ​​of the other docks and the measurement values ​​of the height reference docks is not within the set height deviation range, then enter S5; S5: according to the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier, the positions of other dock piers that need to be adjusted and the corresponding adjusted heights are obtained. After adjusting the heights of other dock piers, S3-S5 are repeated again until the difference between the measured values ​​of other dock piers and the measured value of the height reference dock pier is within the set height deviation range; S6: Finish adjusting the height of the horizontal dock pier.

2. The method for adjusting the height of a horizontal dock pier according to claim 1, characterized in that: In S3, the surface where the position point of the total station on the ground at the dock side and the reference line are located is taken as the reference surface, and the vertical distance between the measuring point and the reference line is the distance between the measuring point and the projection point of the measuring point on the reference surface.

3. The method for adjusting the height of a horizontal dock pier according to claim 1, characterized in that: In S3, there are n horizontal docks at the bottom of the dock, and the measurement value of the nth horizontal dock is defined as hn; in S4, the horizontal dock where the min{h1, h2, …, hn} measurement value is located is taken as the height reference dock, and the difference between the measurement value of other docks and the measurement value of the height reference dock is defined as Δhn, then Δhn = hn-min{h1, h2, …, hn}; in S5, the corresponding adjustment height of other dock positions that need to adjust the height is Δhn.

4. The method for adjusting the height of a horizontal dock pier according to claim 3, characterized in that: The height deviation range is set within ±5mm. In S4, if -5mm≤Δhn≤5mm, enter S6.

5. The method for adjusting the height of a horizontal dock pier according to claim 4, characterized in that: The reference line and the total station are located on the ground at the same side of the dock.

6. The method for adjusting the height of a horizontal dock pier according to claim 1, characterized in that: The horizontal dock is a cement dock, which includes a cement pier, a pad and a rubber pad from bottom to top. The cement pier is a standard part with fixed size. The pad is composed of two wedge-shaped wooden blocks and a number of thin wood slices. The rubber pad plays a buffering and protective role on the paint of the hull outer plate.

7. The method for adjusting the height of a horizontal dock pier according to claim 6, characterized in that: In S5, the height of the dock is adjusted by changing the height of the wedge-shaped wood blocks and the number of veneers.

8. The method for adjusting the height of a horizontal dock pier according to claim 1, characterized in that: Select reference point A and reference point B on the reference line, and post cross targets at reference point A and reference point B.

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