JPS6157801A - Measuring instrument for cross unevenness of road surface and measuring and calculating method of leveling quantity of road surface - Google Patents

Abstract

PURPOSE:To control construction securely and effectively by providing each measuring rod with a level indication mark at constant distance from the lower side and also providing a scale for reading respective level indication marks. CONSTITUTION:Many measuring rods 4, 4... are arranged on frames positioned above and below a frame rule 1 at intervals in a vertically movalbe state. Then, the respective measuring rods 4, 4... are provided with level indication makrs 9, 9... at constant distance from their lower sides and also equipped with scales 10, 10... for reading those level indication marks 9, 9.... In this case, as operation plate 7 is lowered after the leveling state of the frame rule 1, and then the respective level indication marks 9, 9... provided to the measuring rods 4, 4... are arrayed along the unevennes of a road surface on which the measuring rods 4, 4... abut, so the construction control is performed securely and effectively by seeing the level indication marks 9, 9....

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a transverse unevenness measuring device for measuring the amount of transverse unevenness of an existing paved road surface, that is, the state of rutting, and a recorder such as a tape recorder and a computer ( The present invention relates to a measurement calculation method for measuring the amount of road surface leveling, etc., in combination with a computer (for example, a personal computer).

Conventionally, as a method for measuring the amount of transverse unevenness of a paved road surface, that is, the state of rutting, there is a method using a straight ruler or a water system.

This method involves setting a 3.6m straight ruler or water system to the width of the lane, reading the height to the road surface on a 20α pitch scale, and drawing the shape of the ruts. An improved version of this is the transverse profilometer. In this system, a measuring wheel moves on a reference stand and is linked to a recording device to record the shape of the rut. The method of calculating the rut depth at each point is the same as the straight edge or water system method, but whereas these methods read the rut value directly on site, the transverse profilometer uses a drawing drawn on recording paper. You can read it from the shape of the ruts.

In these methods, the equipment itself is relatively inexpensive, and the
It can be easily handled. However, there are disadvantages in that the measurement requires personnel and is time consuming.

Ruts can be measured for evaluating road surface conditions at intervals of 50 to 100 meters for each lane, but when measuring the amount of unevenness on a road surface for maintenance and repair of the pavement surface, Since it is necessary to take measurements at 20m intervals, it takes a lot of effort. Additionally, since the cross-sectional shape of the measurement location cannot be visually observed, a scale is erected at the measurement site and photographs are taken so that the width and depth of the rut can be seen in order to identify the measurement location and measurement value. This is done and organized at each measurement position, which is very time consuming.

There is still a method using a rut measuring vehicle. This method involves mounting a laser beam projection device or streak projection device on the vehicle and a photographing device that photographs the projection of the laser beam onto the road surface, and continuously photographs the ruts while driving. The interpretation of the photographic results is done by computer processing. This method has the advantage of being quick to measure, can be used to calculate the volume of rutted areas when carrying out maintenance and repair work, and can accurately determine the amount of leveling. However, these devices are expensive because they use special optical equipment, and require a dedicated measuring vehicle to mount them.

Also, a highly advanced computer is required. Furthermore, since the photographing is performed by projecting onto the road surface from a laser beam projection device or a line projection device, the work must be carried out at night. Therefore, it has the disadvantage of being too expensive to measure and maintain.

The present invention does not require as much expense as a rutting measuring vehicle, and is simpler than methods using straight rulers, water systems, or transverse profilometers, and allows visual observation of the transverse unevenness of the road surface at the measurement location during measurement. , provides a transverse unevenness measuring device that does not require labor or time for measurement, and a method for measuring and calculating the amount of leveling on a road surface, which is necessary for design, cost estimation, construction management, etc. for maintenance and repair using the device. .

That is, in the present invention, a frame-shaped ruler is constructed by providing a level on a frame extending in the horizontal direction, and a support device having a level adjustment device is provided on the frame-shaped ruler, and the support device is provided above and below the frame-shaped ruler. A large number of measuring rods are arranged vertically at intervals with respect to the frame and can be moved up and down, each measuring rod is provided with a level indicator at a certain distance from the bottom, and the position of those level indicators is read. The gist of the present invention is a road surface transverse unevenness measuring device characterized by having a scale for measuring the cross-sectional irregularities of the road surface, and a frame-shaped ruler with a large number of measuring rods set at intervals and oriented vertically for each unit section of the lane to be measured. The amount of cross-sectional unevenness of the road surface is measured using a road surface transverse unevenness measuring device that is arranged to be able to move up and down and has level indicators placed at a certain distance from the bottom of each measuring rod, as well as a scale for reading the positions of these level indicators. is measured by the index position of the level indicator of each measuring rod, the measured value is recorded on a tape or disk by a recorder, and the measured value of the recorded tape or disk is input into a computer to calculate the cross-sectional unevenness of the road surface at each measuring point. The leveling thickness, leveling width, and cross-leveling amount are calculated by drawing a shape line, inputting the planned reference line of the road surface, and calculating the distance and area between the planned reference line and the cross-sectional irregularity shape line of the road surface. Furthermore, the amount of road surface leveling in a measurement section is calculated as the product of the distance of the unit section and the average value of the cross-sectional leveling amounts of both measurement points sandwiching the unit section. The method is also summarized.

Next, a road surface transverse unevenness measuring device according to the present invention will be described according to an illustrated embodiment.

In the figure, (1) is a frame-shaped ruler, which is composed of an L-shaped or U-shaped metal rod or square metal pipe as a rectangular frame extending in the horizontal direction, and the upper frame rod A spirit level (2) is provided at an easily visible position such as the top. The width of this frame-shaped ruler (1) is preferably a length that corresponds to the width of the entire lane or the width of one lane, and preferably a length that corresponds to the width of at least one lane. In addition, in order to obtain the desired width, the frame-shaped ruler (1) is divided into several pieces as illustrated in the figure, and these frame-shaped rulers (1
1 (+1) can be folded and opened/closed by the hinge (3),
Alternatively, each frame-shaped ruler (1) (11 can be made slidable and retractable. (4) is a measuring rod, which is constructed as a long and thin rod made of a metal round bar or the like. This measuring rod (4) is fitted into a guide hole (5) (5) provided opposite to the frame located above and below the ruler (1) so as to be vertically movable. A large number of rulers are prepared and arranged at appropriate intervals with respect to the frame-shaped ruler (1), and it is desirable that the intervals at which they are arranged are constant, and the intervals of about 106n are usually adopted. (6) is a stopper, and each measuring rod (
4) It is removably attached to the intermediate position of (4) with screws, etc., and is used to prevent the measuring rod (4) from escaping from the frame-shaped ruler (1). be. Also, each measuring rod (
4) An actuating plate (7) into which (4)... is inserted is provided, and is normally supported on the lower frame of the frame-shaped ruler (1). If you hold this actuating plate (7) and raise it,
Stopper (6) for each measuring rod (4) (4)...
(6) ...... is hung on each measuring rod (4) (4)
. . . rises and if the hooking piece (8) provided on the actuating plate (7) is hooked to the upper frame of the frame-shaped ruler (1), each measuring rod +41 (41 is the frame-shaped It is fixed to the ruler (1). (9) is a level indicator, and each measuring rod (4) (
41..., these level indicators (9
) (The unevenness of the road surface is measured by the vertical position of 91...). This level indicator (9) is measured using the measuring stick (
4) may be installed directly, but the stopper (6)
The stopper (6) and the level indicator (9) may also be supported by the stopper (6), or may be integrated with the stopper (6). Further, the level indicator (9) may be colored appropriately for easy confirmation. 00) is a scale for reading the position of the level indicator (9), and is provided in the frame-shaped ruler (1) along the measuring rod (4).

The scale (10) can also be placed directly on the measuring rod (4). (11) is a suspension type support device, in which a support column 0□□□ is fitted and supported on a pedestal (12) so that its fixed position can be rotated freely, and an arm (141) is attached to the support column 03. It is provided.

This arm 0→ can be made extendable and retractable as necessary. 0■ is a support rod that hangs down from the tip of the arm Oa, and is made of a double structure that can be expanded and contracted. By operating the winding machine (1e) to take up or unwind the rope (1η), the extendable member of the support rod (l) is pulled up or lowered, and the The support rod (15) can be expanded and contracted by other means such as using a rack and pinion.O
Reference numeral ``gl'' denotes a support piece, which is provided at the lower end of the extensible member of the support rod 0, and is provided with a through-hole for support. Then, this support piece 0 barrel is fitted with the U-shaped connecting piece (20) provided on the frame-shaped ruler (11), and the supporting hole 0!j marked with support piece θ is connected to the U-shaped connecting piece 00. Connection through hole 01+
By inserting the connecting pin (2) into the frame ruler (1), the frame ruler (1) is supported in a suspended state with respect to the support rod (IQ). (23) is a turnbuckle type level adjustment device, It is installed between the support rod 0ω and the frame ruler (1), and is used to adjust the level of the frame ruler fil which is suspended from the support rod (1). ea is the support leg type. The support device is composed of a leg rod (2 [i) that expands and contracts by the rotation of the handle (two legs) and is provided on the side of the punching ruler (1). It is also possible to provide wheels on the lower side of the wheel, and the leg rod (20
If they are arranged in a forked shape on both sides of the frame-shaped ruler [1], the frame-shaped ruler (1) can be made movable.

This device is used mounted on a small truck, etc., and the rope 07) is rewound by the winder (I6), and the support rod (one of which is fully extended) is used to measure the road surface with a frame type ruler (1). After lowering the frame ruler (1) and supporting it on one side with the leg rod (26), adjusting the level of the frame ruler (1) using the length of the leg rod (26) and a turnbuckle-type leveling device system, hang it. By removing the piece (8) from the upper frame of the frame-shaped ruler (1) and lowering the actuating plate (7), each measuring rod (4) (4
)... are lowered so that their lower tips are positioned above the road surface. In such a case, use each measuring rod (41 (4)
Each level indicator (9+ (91...
... are arranged vertically along the unevenness on the road surface that the lower tip of each measuring rod (4) (4) ... comes into contact with, so these level indicators ( 9)(9)・
...By looking, you can see the unevenness of the road surface. And at each level
Mark the position of the index (91 (9)...) on the scale (1o
) H)... The amount of unevenness can be measured by reading.

As described above, the road surface transverse unevenness measuring device according to the present invention is constructed with a simple mechanism, and can perform measurements easily, quickly, and accurately.

Next, a method of measuring and calculating the amount of unevenness of a road surface according to the present invention using the apparatus of the present invention will be explained.

The method for measuring and calculating the amount of road surface leveling in the present invention is as follows:
This is done by combining a transverse unevenness measuring device, a tape recorder, and a personal computer, and the outline of the management system for existing pavement repair work that combines these is shown in Figure 4.

The figure shows an example of maintenance and repair of the pavement surface of an asphalt-paved road with two left and right lanes.

The measurement section of the lane to be measured is measured at predetermined distance intervals (unit sections), and the standard unit section is usually 20 m'. That is, measurements are taken every 20 m.

Of course, measurements may be made at a distance shorter than this.

First, measure one lane.

After setting the transverse unevenness measuring device on the road surface so that it crosses the measurement position of the lane correctly, a number of measuring rods are lowered onto the road surface. Then, read the relative unevenness (measured value) of the transverse unevenness of the road surface as the distance from the horizontal frame of the frame ruler using the position of the level indicator of each measuring stick as a scale, and record this on a tape or disc using a recorder such as a tape recorder. record audio. It is a good idea to take photos of the measurement site if necessary.

After measuring each measurement point in the measurement section in this way,
From these data, the leveling thickness, leveling width, transverse leveling amount, road surface leveling amount, etc. are calculated as follows.

1) Reproduce the measured relative unevenness from a tape or disk and input the data into a computer for each lane. Draw the cross-sectional irregularities of the road surface on the display.

2) Enter the road surface planning reference line.

3) Quantities such as leveling thickness, leveling width, and cross-sectional leveling amount (area) are determined and checked from the distance and area between the planning reference line and the cross-sectional uneven shape line of the road surface.

4) The leveling amount of the road surface in a measurement unit section is determined by multiplying each unit distance of the section by the cross-sectional leveling amount (area) of both measurement points sandwiching each unit distance section to obtain the leveling amount (volume) of the road surface.

5) For the measurement section of the lane, calculate by integrating the leveling amount (volume) of the road surface in each unit section.

These measured values are printed and summarized in a report. These results can be effectively and accurately used to calculate the amount of leveling when performing overlay work, or the amount of cutting when performing cutting, resurfacing, remodeling, recycling, etc.

An example of measuring and calculating the amount of leveling on an existing paved surface using the method of the present invention will be described below.

Example 1 In order to maintain and repair an existing two-lane road with asphalt pavement that is subject to heavy wear due to winter traffic, the amount of road surface leveling is measured and calculated.

Two measurement points were set for the two left and right lanes of the total measurement section of 110 m.
0m interval, final interval is 10m interval, each measuring point (
0, 1, 2, 3, 4, 5 and 6), the relative amount of unevenness of the lane was measured using a transverse unevenness measuring device.

Measure every 14-l. Set the transverse unevenness measuring device to cross the lane correctly at the measurement point and at an appropriate horizontal height. Next, remove the operating plate from each measuring rod of the transverse unevenness measuring device, lower it, and touch the tip of each measuring rod to the road surface.

Next, the height position of the level indicator of each measuring rod is read from the end on a scale as a relative unevenness amount and is recorded into a tape recorder. Since the pitch of each measuring rod is 10 crn, measurement values are obtained at 10 crn intervals. Each measurement point is measured in the same way, and the measured values are recorded audibly on a tape or disk of a recorder such as a tape recorder. Furthermore, if a photograph is taken during measurement at each measurement point, the shape of the cross-sectional unevenness of the road surface at the measurement point can be clearly recorded at a glance using a series of level indicators.

After completing the survey at each measurement point in this way, we begin calculations from the data. Play audio data from a tape or disk and input it to a computer.

For each measurement point, calculate as follows. A cross-sectional unevenness profile line is drawn on a computer based on the relative amount of unevenness across the measurement point, and then a planned reference line for the road surface is input. Next, the distance from the planning reference line to the cross-sectional uneven shape line of the road surface, that is, the leveling thickness (the thickness necessary for leveling the concavity) is calculated at intervals of 10α.

Then, the leveling width, average leveling thickness, and cross-sectional leveling amount (cross-sectional area) can be calculated.

These are all calculated on a computer. Examples of measurement calculations for measurement point 0 and measurement point 1 are shown in FIGS. 5 and 6.

Each measurement point was similarly processed by a personal computer, and Tables 1 and 2 show the total leveling thickness and leveling amount (volume and area) for all measurement sections.

The computer-generated cross-sectional irregularity shape map of each measurement point can be compared and confirmed by taking a photograph at the time of measurement.

The features and effects of the transverse unevenness measuring device of the present invention and the method of measuring the amount of unevenness of a road surface using the device will be explained.

(1) The measurement mechanism of the device is rational and easy to handle, there are few failures, it is easy to carry and transport, and it can be done at a low cost and maintenance costs are low.

(2) Measurement is done by actual measurement, has high accuracy, and can be done quickly, saving labor, time, and cost.

(3) The measuring mechanism measures the height position of the level indicator of a large number of vertical measuring rods arranged at a constant pitch along the horizontal frame of the frame-shaped ruler (horizontally positioned). Actual measurements are made using the scale as a reference. There is a scale on the side of each measuring stick, so there is no need to apply the scale to the measurement. Also, while reading the measured values, recorder records the audio.
By adopting a method of recording on a disk or a disk, labor and time during measurement can be saved. As for accuracy, the measurement pitch is about 10tM compared to the conventional 20t:
Measurement accuracy is improved because measurements are made more precisely than m-intervals.

(4) During measurement, the groove shape of the road surface at the measuring point can be seen with a single eye using the level indicators on a series of measuring sticks, and by taking a photograph, the cross-sectional shape of the road surface can be recorded in the photograph, and the measurement result can be It can be effectively used for confirmation and management of maintenance and repair work.

(5) Input the data recorded as audio from the recorder into the computer, draw the transverse uneven shape line of the measurement point, input the planning reference line to this, and calculate the leveling amount.
Calculations are accurate and quick.

(6) It is easy to calculate the amount of leveling and cutting during maintenance and repair work, allowing for accurate design, cost estimation, and construction management.

Since the amount of leveling can be determined from the planning reference line and the cross-sectional irregularity shape line of the road surface, the leveling depth, width, area, volume, etc. when leveling can be calculated using this as a reference, so the design and cost estimation are easy. I can do it accurately. This also makes it easy to change the design depending on budget and other factors. If you can do this, you can easily add up the quantity even in cases such as cutting.

Conventional methods often relied on intuition, but by using the road surface transverse unevenness measuring device of the present invention, construction planning, construction, and management can be carried out reliably and effectively.

[Brief explanation of the drawing]

In the drawings, Fig. 1 is an overall front view showing the road surface transverse unevenness measuring device according to the present invention, Fig. 2 is a front view of the main part, Fig. 3 is a longitudinal cross-sectional side view of the main part, and Fig. 4 is the present invention. FIGS. 5 and 6 are block diagrams showing a management system for carrying out the method described above, and FIGS. 5 and 6 are diagrams showing the cross-sectional unevenness of a road surface, respectively, showing measured conditions. The symbols in the figure are explained as follows.

Claims (2)

[Claims] (1) A horizontally extending frame is provided with a spirit level to form a frame ruler, and the frame ruler is provided with a support device equipped with a level adjustment device, and the frames located above and below the frame ruler are A large number of measuring rods are arranged vertically at intervals and movable up and down, and each measuring rod is provided with a level indicator at a certain distance from the bottom and a scale for reading the position of the level indicator. A road surface transverse unevenness measuring device characterized by comprising: (2) For each unit section of the lane to be measured, a large number of measuring rods are placed on a frame-shaped ruler at intervals so that they can move up and down in the vertical direction, and each measuring rod has a level at a certain distance from the bottom. The amount of cross-sectional unevenness of the road surface is measured by the index position of the level indicator of each measuring stick using a road surface transverse unevenness measuring device equipped with indicators and a scale for reading the positions of these level indicators, and the measured value is recorded by a recorder. Record the measured values on a tape or disk, enter the recorded tape or disk measurements into a computer, draw a cross-sectional irregularity shape line of the road surface at each measurement point, input the road surface planning standard line into this, and calculate the plan standard. By calculating the distance and area between the line and the cross-sectional irregularity shape line of the road surface, the leveling thickness, leveling width, and cross-sectional leveling amount are determined.Furthermore, the leveling amount of the road surface in the measurement section is determined by the distance of the unit section and the unit section. A method for measuring and calculating the amount of leveling of a road surface, characterized in that the amount of leveling of a road surface is calculated as the product of the average value of the amount of cross-sectional leveling of both measurement points sandwiching the amount.