KR20210062789A - Construction scheduling method of an construction fields concerning background noise - Google Patents

Abstract

The present invention relates to a method for adjusting the construction schedule of a construction site in consideration of background noise, comprising the steps of: calculating a background noise value for each time period from a background noise prediction formula around the construction site (70) based on weather information and traffic volume prediction information according to the weather forecast (S100); calculating the overlapping noise value by overlapping the background noise value and the construction noise value generated in the process of the construction site (70) by time period (S110); determining whether the overlapping noise value satisfies the noise standard (85) (S130); and re-adjusting the working time period of the process to satisfy the noise standard (85) when the noise standard (85) is not satisfied (S140). The method of adjusting the construction schedule is provided so that the sum of the background noise and the construction noise does not exceed the noise standard.

Description

Construction scheduling method of an construction fields concerning background noise

The present invention relates to a method for adjusting a construction schedule in a construction site in consideration of background noise, and more particularly, to a method for adjusting a construction schedule so that the sum of background noise and construction noise does not exceed a noise standard.

In general, noise standards are set by law for each region and time of day around construction sites. First, Article 20, Paragraph 3 of the Regulations on Living Noise and Vibration stipulates the maximum noise standards allowed for each target area and time zone (see [Table 1]).

Target area
noise source Morning and evening
(05-07, 18-22) weekly
(07-18) Nighttime
(22-05) end. Schools, general hospitals, and public libraries in residential areas, green areas, and management areas, such as settlement districts, residential development promotion districts, tourism recreation development promotion districts, natural environment conservation areas, and other areas

Construction site

60 dB(A) or less

65 dB(A) or less

50 dB(A) or less
I. other areas

Construction site
65 dB(A) or less
70 dB(A) or less
50 dB(A) or less

As shown in [Table 1], when the target area is (A), noise from construction sites is allowed up to 60 dB in the morning and evening hours, and a lower standard is applied at night to allow up to 50 dB. are doing

In reality, when the construction noise generation process is in progress, a buffer of about 5 to 10 db is allowed if it is reported in advance. However, if the noise generated at the construction site is measured db higher than the noise standard, material damage such as construction stop/complaint/accusation occurs from nearby residents.

Currently, methods such as stopping the construction, slowing the construction speed, or installing soundproof walls are being used. However, this method not only disrupts the entire process but is only a temporary solution, so it is not a fundamental solution to noise.

1. Republic of Korea Patent Registration No. 10-1628502 (Construction noise monitoring system and construction noise management method using the same),

Accordingly, the present invention has been devised to solve the above problems, and an object of the present invention is to provide a method for adjusting the construction schedule so that the sum of the background noise and the construction noise does not exceed the noise standard.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned are clearly to those of ordinary skill in the technical field to which the present invention belongs from the following description. It will be understandable.

In order to achieve the above technical task, based on the weather information and traffic volume prediction information according to the weather forecast, calculating a background noise value for each time period from the background noise prediction formula around the construction site 70 (S100); calculating the overlapping noise value by overlapping the background noise value and the construction noise value generated in the process of the construction site 70 by time period (S110); determining whether the overlapping noise value satisfies the noise standard 85 (S130); And if the noise standard 85 is not satisfied, the step of re-adjusting the working time zone of the process to satisfy the noise standard 85 (S140); is provided

In addition, the background noise prediction equation is,

y (day, noise) = weather coefficient × (heavy vehicle traffic × 0.8 + small vehicle traffic × 0.5)

Here, y is the predicted noise (dB) of the day, and the weather coefficient is 0.3 when it is cloudy, 1.2 when it is raining, and 0.8 when it is sunny, and the heavy vehicle traffic and the small vehicle traffic are measured in the past is the number of vehicles passing through.

In addition, the traffic volume prediction information is determined based on the actual number of vehicles passing by the corresponding day and time in the past.

In addition, step S110 is calculated based on the quantified construction noise value of the equipment input for each process of the construction site 70 and the number of the equipment.

Also, the time zone is one hour apart.

In addition, steps S100 to S140 are predicted for each day of the week.

In addition, the re-adjustment step (S140) is a step (S140) of re-adjusting to a time period in which the sum of the background noise value and the maximum noise value of the process is less than the noise standard (85).

In addition, the noise standard 85 may be changed for each time period.

According to an embodiment of the present invention, there is no civil complaint because the noise standard is not exceeded during construction. In addition, it has the effect of smoothly proceeding with the entire construction schedule.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the following description. I will be able to.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings It should not be construed as being limited only to
1 is a block diagram showing a configuration for deriving a background noise prediction equation according to an embodiment of the present invention;
2 is a flowchart showing a noise prediction method of a construction site using the background noise prediction equation shown in FIG. 1;
3 is a schematic plan view of a construction site located on the roadside;
Figure 4 is a graph showing the noise measurement value according to the construction schedule of the conventional method,
5 is a graph showing the noise measurement value for which the construction schedule is adjusted according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art may easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiments can be variously changed and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereto.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component. When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, when a component is referred to as being "directly connected" to another component, it should be understood that there is no other component in the middle. On the other hand, other expressions describing the relationship between components, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" refer to the specified features, numbers, steps, actions, components, parts, or these. It is to be understood that it is intended to designate that a combination exists and does not preclude the presence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted as having meanings in the context of related technologies, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

How to predict the noise of a construction site considering the background noise

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. 1 is a block diagram showing a configuration for deriving a background noise prediction equation according to an embodiment of the present invention. As shown in FIG. 1 , in order to derive a background noise prediction equation, first, actual measured noise data for each season/day/time zone is prepared. [Table 2] is an example of noise data measured on Monday for each time zone among these noise data.

time Monday weather Traffic (heavy vehicles) actual noise 06-07 cloud 3,208 (15%) 25db 07-08 cloud 5,111 (12%) 65db 08-09 ratio 10,111 (18%) 80db 09-10 ratio 8,452 (22%) 70db 10-11 ratio 6,111 (21%) 65db 11-12 ratio 5,125 (20%) 60db 12-13 ratio 6,511 (16%) 58db 13-14 ratio 6,111 (12%) 55db 14-15 Sunny 8,511 (8%) 62db 15-16 Sunny 7,535 (6%) 45db

And the background noise prediction equation is defined as follows.

y (Monday, noise) = Weather coefficient × (Heavy vehicle traffic × 0.8 + Small vehicle traffic × 0.5)

Here, y is the predicted noise (dB) for Monday, and the weather coefficient is 0.3 when it is cloudy, 1.2 when it is raining, and 0.8 when it is sunny. The heavy vehicle traffic volume can be obtained from [Table 2], and the small vehicle traffic volume can be obtained by subtracting the heavy vehicle traffic volume of [Table 2] from the total traffic by a percentage. For example, if 15% of heavy vehicles are 3,208 in the 06:00 ~ 07:00 time zone, 85% of small vehicles are 18,179.

Meanwhile, [Table 3] shows the traffic volume of the corresponding road obtained from Seoul Traffic Information (TOPIS) in order to derive the traffic volume prediction formula (traffic volume by Monday/time).

time 1st week of January January 2nd January 3rd January 4th ~ June 1st June 2nd June 3rd June 4th June 5th July 1st 06-07 2152 2364 2214 2521 ~ 2236 2351 2611 2411 2100 2568 07-08 3020 3351 3681 3711 3113 3012 2988 3125 3233 3251 08-09 9912 10113 8651 8815 8342 9015 9265 9446 9612 9512 09-10 8511 10-11 6521 11-12 2483 12-13 6411 13-14 2585 14-15 5416 15-16 4241

Based on the traffic volume from the 1st week of January to the 5th week of June as shown in [Table 3], if a forecast trend line for each time period is derived or artificial intelligence inference or big data technique is applied, traffic volume can be predicted.

Alternatively, the road traffic noise prediction formula (National Institute of Environment, 1999) according to the following traffic characteristics can be applied.

where Leq is the predicted noise at a distance of 10m from the road (dB), Q is the equivalent traffic volume per hour (large/hour), Q=small car (large/hour)+10×large vehicle (large/hour), V is the average speed (km / h), r is _a distance ratio, C of at least 10m away from the road branch prediction with respect to a reference distance 10m is the following constants. When 15,000<Q, C is -2.0, when 10,000<Q<15,000, C is -1.5, when 5,000<Q<10,000, C is -1.0, and when Q<2,000, C is 0.

Then, in order to predict the background noise, the following process is performed. First, as shown in [Table 4], the hourly weather forecast from the Korea Meteorological Administration is transmitted. Then, the predicted traffic volume obtained in [Table 3] is applied.

time Tuesday weather Traffic (heavy vehicles) prediction noise 06-07 Sunny 2,568 (5%) 18db 07-08 Sunny 3,251 (6%) 32db 08-09 Sunny 9,512 (12%) 61db 09-10 Sunny 8,511 (16%) 45db 10-11 Sunny 6,521 (12%) 60db 11-12 cloud 2,483 (12%) 38db 12-13 cloud 6,411 (9%) 41db 13-14 cloud 2,585 (6%) 55db 14-15 cloud 5,416 (8%) 66db 15-16 cloud 4,241 (12%) 41db

Then, the predicted noise y can be calculated from the above-described background noise prediction equation.

y (Monday, noise) = Weather coefficient × (Heavy vehicle traffic × 0.8 + Small vehicle traffic × 0.5)

Here, y is the predicted noise (dB) for Monday, and the weather coefficient is 0.3 when it is cloudy, 1.2 when it is raining, and 0.8 when it is sunny.

On the other hand, if the noise generated from various equipment input to the process is quantified, it is as follows.

Equipment name Generated Noise (dBA) air compressor 110 excavator (backhoe) 100 compactor 103 loader 104 breaker 121 boring machine 121 generator 87 concrete crusher 115 anti-aircraft machine 102 Slope compactor (no load) 91.8 Slope compactor (load) 103.7 Tractor (no load) 105.9 crusher 96 hammer 114

For the noise generated by equipment as shown in [Table 5], the noise level inspection data of the National Institute of Environmental Sciences (2019.07) can be used. And, with reference to [Table 5], determine the number and combination of equipment input for each process. For example, three backhoes and one grader are combined for excavation work, and two backhoes and two drilling machines are used for drilling work.

Then, in the case where various types of processes are performed simultaneously in the construction site 70, the final noise for each time period is determined by neutralizing these construction noises. 3 is a schematic plan view of a construction site located on the roadside. In FIG. 3, it is assumed that the noise meter 80 is installed around the construction site 70, and that one construction A (90) and two construction B (80, 92) are in progress in the construction site 70 at the same time. do. For reference, the marked circle of the construction A (90) indicates the working position and the working range within the construction site (70). Referring to FIG. 3 , in the case of a point sound source, [Equation 2] is applied.

And, in the case of a line sound source, [Equation 3] is applied.

Here, SPL ₁ is the noise level at a distance of 1 m from the noise source (dB(A)), SPL ₂ is the noise level at the sound level meter 80 (dB(A)), r ₁ = 1 m, r ₂ is the noise source and the noise level meter. is the distance (m) between (80).

These [Equation 2] and [Equation 3] utilize the noise attenuation effect according to the distance. By overlapping the noise calculated by [Equation 2] or / and [Equation 3] by [Equation 4], it is possible to calculate the overlapping noise generated from the process in progress at the same time in the corresponding time period (S120).

Here, L _total is the overlapping synthetic noise level (dB), N is the number of input devices, and L _N is the individual noise level (dB) for each device.

How to adjust the construction schedule using noise prediction at the construction site

4 is a graph showing noise measurement values according to a construction schedule of a conventional method. And, [Table 6] is a table showing noise measurements according to the construction schedule of the conventional method.

2019.06.27 time fair limit value Predicted value Availability 07-08 stone work 65 dB 70dB × 08-09 excavation work 65 dB 45 dB ○ 09-10 excavation work 65 dB 45 dB ○ 10-11 stone work 65 dB 60dB ○ 11-12 stone work 65 dB 65 dB × 12-13 excavation work 65 dB 45 dB ○ 13-14 ... ... ... ... 14-15 ... ... ... ... 15-16 ... ... ... ... 16-17 ... ... ... ...

As can be seen from Figures 4 and [Table 6], when the construction schedule is unilaterally determined according to the conventional method, the fractional work in the 07-08 am and the fractional work in the 11-12 am is based on the noise standard (85). It can be seen that it cannot work beyond .

On the other hand, FIG. 5 is a graph showing the noise measurement values of which the construction schedule is adjusted according to the present invention, and [Table 7] is a table showing the noise measurement values of the process in which the construction schedule is readjusted according to the present invention.

2019.06.27 time fair limit value Predicted value Availability 07-08 excavation work 65 dB 60dB ○ 08-09 excavation work 65 dB 45 dB ○ 09-10 stone work 65 dB 60dB ○ 10-11 stone work 65 dB 60dB ○ 11-12 excavation work 65 dB 40 dB ○ 12-13 excavation work 65 dB 40 dB ○ 13-14 ... ... ... ... 14-15 ... ... ... ... 15-16 ... ... ... ... 16-17 ... ... ... ...

As can be seen from Fig. 5 and [Table 7], if the segregation work is moved to 09-10 am and 10-11 am so as not to exceed the noise standard (85), all the work planned for the day can be smoothly performed without excessive noise. it can be seen that there is

Detailed description of the preferred embodiments of the present invention disclosed as described above has been provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, a person skilled in the art can use each configuration described in the above-described embodiments in a way in combination with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential features of the present invention. Therefore, the detailed description above should not be construed as restrictive in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment or may be included as a new claim by amendment after filing.

10: Weather information (actual measurement),
20: traffic volume information (actual measurement),
30: noise (actual measurement),
50: background noise prediction formula,
60: road,
62: background noise,
64: A construction noise,
66: B construction noise,
68a: maximum noise (impossible),
68b: maximum noise (possible),
70: construction site,
80: sound level meter,
85: noise standard,
90: Construction A possible,
92: Construction B possible,
94: Construction B impossible.

Claims (8)

Calculating a background noise value for each time period from a background noise prediction formula around the construction site 70 based on weather information and traffic volume prediction information according to the weather forecast (S100);
calculating the overlapping noise value by overlapping the background noise value and the construction noise value generated in the process of the construction site 70 by time period (S110);
determining whether the overlapping noise value satisfies the noise standard (85) (S130); and
If the noise standard (85) is not satisfied, re-adjusting the working time period of the process to satisfy the noise standard (85) (S140); Adjusting the construction schedule of a construction site in consideration of background noise, comprising: Way. The method of claim 1,
The background noise prediction formula is,
y (day, noise) = weather coefficient × (heavy vehicle traffic × 0.8 + small vehicle traffic × 0.5)
Here, y is the predicted noise (dB) on the day of the week, and the weather coefficient is 0.3 when it is cloudy, 1.2 when it is raining, and 0.8 when it is sunny, and the heavy vehicle traffic and the small vehicle traffic are measured in the past on the day of the week. A method of adjusting the construction schedule of a construction site considering the background noise, characterized in that the number of vehicles passing through. The method of claim 1,
The traffic volume prediction information is a method for adjusting the construction schedule of a construction site considering background noise, characterized in that it is determined based on the actual number of vehicles passing by each day and time of the week. The method of claim 1,
The step S110 is a construction schedule adjustment method of a construction site considering background noise, characterized in that it is calculated based on the quantified construction noise value of the equipment input for each process of the construction site (70) and the number of the equipment. The method of claim 1,
The time zone is a method of adjusting the construction schedule of a construction site in consideration of the background noise, characterized in that the interval is one hour. The method of claim 1,
The method of adjusting the construction schedule of a construction site in consideration of background noise, characterized in that the steps S100 to S140 are predicted for each day of the week. The method of claim 1,
The readjustment step (S140) is,
A method for adjusting the construction schedule of a construction site considering background noise, characterized in that the step (S140) is to readjust the time period when the sum of the background noise value and the maximum noise value of the process is less than the noise standard (85). The method of claim 1,
The noise standard 85 is a method for adjusting the construction schedule of a construction site in consideration of background noise, characterized in that it can be changed for each time period.

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