CN115689103A - Regional highway construction period carbon emission reference value estimation method - Google Patents
Regional highway construction period carbon emission reference value estimation method Download PDFInfo
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Abstract
The invention provides a regional highway construction period carbon emission reference value estimation method, which is used for carrying out regional division according to the difference of factors such as landform, climate environment, road building material resource distribution and the like; obtaining road building materials and energy consumption according to a project amount list or a project cost budget file; and calculating the carbon emission of project unit engineering by adopting a carbon emission factor method, and counting to form a regional carbon emission reference value. The invention solves the problems that the carbon emission accounting method is not clear and the evaluation method is lacked in the highway construction period in China at present; in the face of the current situation of large regional difference of carbon emission, a regional division principle and a carbon emission accounting method in a highway construction period are provided, a regional carbon emission reference value estimation method is established, the blank of research on regional carbon emission level quantification of the highway is filled, the carbon emission data accumulation speed in the highway construction period in China is increased, and a scientific basis is provided for establishing a national unified carbon emission evaluation standard.
Description
Technical Field
The invention relates to the technical field of highway carbon emission, in particular to a regional highway construction period carbon emission reference value estimation method.
Background
In the process of road construction, maintenance and operation, along with the consumption of a large amount of building materials and energy, the influence on ecology and resource environment is significant, and the method is an absolute main body of traffic carbon emission and an important point of emission reduction.
However, in the field of highway infrastructure construction in China, no unified carbon emission accounting and evaluation standard exists yet. In the road construction process, carbon emission index quantification management and control and policy guidance are difficult to carry out. Meanwhile, due to the influences of factors such as landform, climate environment and road building resource distribution, the difference of the scale of highway construction in different areas such as bridge-tunnel ratio, roadbed filling and excavation is large, and the difference of carbon emission in the construction period is large. Therefore, the carbon emission levels of the roads in different regions need to be analyzed by combining the road construction characteristics, so that the carbon emission evaluation standard of each region is provided, and scientific basis is provided for guiding the construction of low-carbon roads and formulating national road carbon emission evaluation specifications.
The research on the road construction emission accounting in China is still in the early exploration stage, sufficient carbon emission quantitative data are lacked, and the carbon emission base number of the road construction is not well mastered, so that the research is more blank in the aspect of carbon emission evaluation standards. At present, research aiming at carbon emission evaluation in the highway construction period is available, but a single project construction carbon emission evaluation method is mainly proposed from a methodology perspective, and no specific analysis method aiming at regional carbon emission level quantification exists.
Disclosure of Invention
The invention aims to provide a regional division principle and a highway construction period carbon emission accounting method aiming at the current situations of unclear carbon emission accounting method, blank evaluation standard and large regional difference of carbon emission in the current highway construction period of China, and establishes a regional carbon emission reference value estimation method, fills the research blank of highway regional carbon emission evaluation, and is beneficial to finishing highway construction carbon emission data accumulation and standard establishment in China.
In order to solve the above problems, the present invention provides the following technical solutions:
a regional highway construction period carbon emission reference value estimation method comprises the following steps:
(1) Selecting a road construction project in a certain area according to the difference of construction elements such as landform, climate environment, road construction material resource distribution and the like;
(2) Total route mileage L of statistical project t Length L of road bed section j Bridge length L q Length L of tunnel s Waiting for engineering scale data;
(3) Collecting the total main road building materials and energy consumption of the project in the construction period and the main road building materials and energy consumption of various structural projects such as roadbeds, pavements, bridges, tunnels and the like
(4) Determining carbon emission factors of main road building materials and energy sources of the project;
(5) Calculating the total carbon emission Q of the project construction period according to the steps (3) and (4) t And Q carbon emission of various structural projects such as roadbeds, road surfaces, bridges and tunnels j 、Q m 、Q q 、Q s ；
(6) Calculating the carbon emission q of project unit engineering according to the steps (2) and (5) t And the carbon emission q of unit roadbed engineering, unit road surface engineering, unit bridge engineering and unit tunnel engineering j 、q m 、 q q 、q s 。
(7) Calculating according to the calculation result in the step (6) to obtain a reference value q of carbon emission of unit mileage in the construction period of the highway in the area to And unit roadbed length, unit road surface length, unitReference value q of carbon emission of bridge length and unit tunnel length jo 、q mo 、q qo 、q so ；
Preferably, the landform in the step (1) mainly refers to terrain classification such as plains, hills and mountains; the climatic environment mainly refers to the historical extreme high temperature, extreme low temperature and annual average rainfall; the road building material resource distribution mainly refers to stone resource distribution.
Preferably, the data of the main road building materials and the energy consumption in the step (3) are mainly derived from project quantity lists or project cost budget files of projects.
Preferably, the carbon emission factor in the step (4) is mainly derived from a carbon emission factor database at home and abroad.
Preferably, the total amount of carbon emission Q of step (5) t Is calculated by the formula
The ith road building material or energy consumption amount of the project is multiplied by the carbon emission factor of the ith road building material or energy. Carbon emission Q of each structural work j 、Q m 、Q q 、Q s Is calculated by the formula
The structural engineering is characterized in that the ith road building material or energy consumption is multiplied by the carbon emission factor of the ith road building material or energy.
Preferably, the unit engineering carbon emission q in the step (6) t 、q j 、q m 、q q 、q s The calculation formula is q t/j/m/q/s ＝Q t/j/m/q/s /L t/j/m/q/s ；
Preferably, when the carbon emission reference value in the step (7) is estimated, the number of the item samples in the region should be not less than 3.
The beneficial effects of the above technical scheme are:
1. by taking factors such as landform, climate environment and road building material resource distribution as the basis of region division, project engineering scale and material energy consumption condition of different regions can be well distinguished, so that carbon emission levels of different regions have typical difference.
2. The road building materials and the energy consumption are obtained according to the project amount list or the project cost budget file, heavy detection and complex theoretical calculation work of an on-site actual measurement method and a quality balance method are avoided, data are obtained conveniently and accurately, and the working efficiency is improved.
3. The method for estimating the regional carbon emission reference value in the highway construction period is provided, so that the problem that the carbon reduction effect of the traditional highway cannot be quantized is solved, a basis is provided for evaluating the carbon emission level of the subsequent highway construction in the region by establishing the regional carbon emission reference parameter, and scientific guidance and basis are provided for formulating effective energy-saving and emission-reducing measures.
Detailed Description
The following examples are provided to explain embodiments of the present invention in detail.
A method for determining a regional highway construction period carbon emission reference value comprises the following steps:
(1) According to the difference of construction elements such as landform, climate environment and road building material resource distribution, a river-Huai-hilly area different from northern Anhui plain and southern Anhui mountain area is selected as an analysis object, and 3 highway construction projects A1, A2 and A3 in the area are collected.
(2) Counting the total route mileage L of the 3 projects t Length L of road bed section j Bridge length L q Length L of tunnel s The data of the same engineering scale are shown in Table 1.
TABLE 1 project engineering Scale statistics (km)
| Name of item | Total length of route | Length of roadbed | Road surface length | Bridge length | Length of tunnel |
| A1 | 44.82 | 38.442 | 38.442 | 5.874 | — |
| A2 | 27.505 | 20.62 | 20.62 | 0.725 | 1.717 |
| A3 | 44.36 | 29.438 | 29.438 | 7.052 | 3.251 |
| A4 | 119.207 | 60.008 | 60.008 | 32.916 | 5.808 |
(3) Collecting the main road building materials and energy consumption conditions of each project in the construction period from the project cost budget document, and determining the carbon emission factors of the corresponding road building materials and energy from the domestic and foreign carbon emission factor databases. Taking the item A1 as an example, the statistics of the material and energy consumption and the carbon emission factor are shown in table 2.
TABLE 2 A1 project Main road construction materials and energy consumption
(4) According to the formula
The corresponding carbon emission amount is calculated by multiplying the ith road building material or energy consumption amount by the carbon emission factor of the ith road building material or energy. Further calculating the carbon emission q of the project unit project t And the carbon emission q of unit roadbed engineering, unit road surface engineering, unit bridge engineering and unit tunnel engineering j 、q m 、q q 、q s . The results of the carbon emission calculation for each item are shown in table 3.
TABLE 3 item carbon emission per unit length calculation results
(5) The carbon emission standard value of unit mileage in the construction period of the highway in the area is 10850.7t, and the carbon emission standard values of unit roadbed length, unit pavement length, unit bridge length and unit tunnel length are 2022.7t, 1742.6t, 40004.7t and 60860.6t respectively by adopting a mathematical statistical method;
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, which fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. A regional highway construction period carbon emission reference value estimation method is characterized by comprising the following steps: the method comprises the following steps:
(1) Selecting a road construction project in a certain area;
(2) Total route mileage L of statistical project t Length L of road bed section j Bridge length L q Length L of tunnel s Engineering scale data;
(3) Collecting the total main road building materials and energy consumption of the project in the construction period and the main road building materials and energy consumption of each structural engineering of roadbeds, pavements, bridges and tunnels
(4) Determining carbon emission factors of main road building materials and energy sources of the project;
(5) Calculating the total carbon emission Q of the project construction period according to the steps (3) and (4) t And carbon emission Q of various structural projects of roadbeds, road surfaces, bridges and tunnels j 、Q m 、Q q 、Q s ；
(6) Calculating the carbon emission q of project unit engineering according to the steps (2) and (5) t And the carbon emission q of unit roadbed engineering, unit road surface engineering, unit bridge engineering and unit tunnel engineering j 、q m 、q q 、q s ；
(7) The road construction in the area is obtained through statistics according to the calculation result in the step (6)Carbon emission reference value q of mileage in term to And a reference value q of carbon emission per roadbed length, road surface length, bridge length and tunnel length jo 、q mo 、q qo 、q so 。
2. The method for estimating the regional highway construction period carbon emission reference value according to claim 1, wherein the method comprises the following steps of: the total carbon emission Q of the step (5) t Is calculated by the formula
The ith road building material or energy consumption multiplied by the carbon emission factor of the ith road building material or energy is used as a project; carbon emission Q of each structural work j 、Q m 、Q q 、Q s Is calculated by the formula
The structural engineering is characterized in that the ith road building material or energy consumption is multiplied by the carbon emission factor of the ith road building material or energy.
3. The method for estimating the carbon emission reference value in the construction period of the regional highway according to claim 1, wherein the method comprises the following steps: the unit engineering carbon emission q in the step (6) t 、q j 、q m 、q q 、q s The calculation formula is q t/j/m/q/s ＝Q t/j/m/q/s /L t/j/m/q/s 。
4. The method for estimating the carbon emission reference value in the construction period of the regional highway according to claim 1, wherein the method comprises the following steps: when estimating the carbon emission reference value in the step (7), the number of the item samples in each region should be not less than 3.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116108998A (en) * | 2023-02-22 | 2023-05-12 | 葛洲坝集团交通投资有限公司 | Expressway construction project carbon emission prediction method and system |
| CN116485260A (en) * | 2023-04-24 | 2023-07-25 | 中交第二公路勘察设计研究院有限公司 | Highway engineering design scheme comparison and selection method considering carbon benefits |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116108998A (en) * | 2023-02-22 | 2023-05-12 | 葛洲坝集团交通投资有限公司 | Expressway construction project carbon emission prediction method and system |
| CN116108998B (en) * | 2023-02-22 | 2023-12-15 | 葛洲坝集团交通投资有限公司 | Expressway construction project carbon emission prediction method and system |
| CN116485260A (en) * | 2023-04-24 | 2023-07-25 | 中交第二公路勘察设计研究院有限公司 | Highway engineering design scheme comparison and selection method considering carbon benefits |
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