Outline of urban flood control planning for urban planners

Chapter I General Situation of Cities and Cities

Section 1 General Situation of Nature and Social Economy

Natural overview The geographical location and area of the city (the land area of urban and suburban areas), as well as the topography, landforms, meteorological and hydrological characteristics of this area (temperature, precipitation, water level, flow, sediment, tides, rainstorm, etc.). ). Distribution and evolution of rivers, lakes and depressions.

Social and economic status, the development and evolution of cities, population, industry, agriculture, fixed assets, total output value and profits and taxes, and the position and role of cities in the national and regional national economy.

Socio-economic development planning The recent socio-economic development and urban development planning of the city.

The second quarter flood disaster

Floods, waterlogging and other disasters in history.

Rainfall, water regime, disaster situation (inundation range, water depth, inundation duration), economic loss (direct and indirect), intangible loss and casualties in major flood disaster years.

Chapter II Current Situation and Problems of Urban Flood Control and Waterlogging Control Projects

Construction of engineering facilities and non-engineering measures for flood control and waterlogging control.

Present situation of urban flood control and waterlogging control capacity and standards.

Main problems existing in flood control and waterlogging control at present (engineering measures and non-engineering flood control measures).

Chapter III Topography and Geology

Section 1 Terrain

Terrain information.

Topographic characteristics of urban areas (including suburbs) and distribution of major rivers, rivers, lakes and depressions.

Topographic characteristics of main flood control and waterlogging elimination engineering facilities and building addresses.

Section 2 Geology

Engineering geological exploration and test data.

Regional geology and basic earthquake intensity.

Engineering geology of main engineering facilities and buildings (main physical and mechanical indexes of strata).

Hydrogeological conditions (aquifer distribution, groundwater depth, recharge and discharge conditions, etc.). ) area and flood control and waterlogging control engineering facilities and buildings.

Chapter IV Hydrological Analysis and Calculation of Flood Control and Waterlogging Control

The first section design flood analysis and calculation

Rainstorm and flood data.

Characteristics of rainstorm and flood.

Types, characteristics and causes of flood disasters.

Characteristics of catastrophic floods.

Analyze and calculate the design flood of the representative station (flood level, peak flow, flood volume in different periods and flood flow hydrograph), and control the design flood of the section.

Analysis and calculation of design flood water surface line.

Analysis and research on the influence of human activities on flood.

Analysis and calculation of design high tide level in the second quarter

Tidal level observation and data, tidal characteristics. Main characteristics of past storm surges. Analysis and calculation of design high tide level.

Section 3 Analysis and Calculation of Waterlogging Water Level

Observation data of rainstorm waterlogging.

Characteristics of major floods in the past.

Analysis and calculation of design rainstorm (point rainstorm, area rainstorm, rain pattern, etc.). ).

Analysis and calculation of design waterlogging (the relationship between rainfall and runoff, discharge, water quantity in different periods and discharge hydrograph).

Analysis of flood tide encounter.

Design superelevation and tidal level analysis.

Analysis and research on the influence of urban construction and other human activities on waterlogging.

Chapter V Urban Flood Control Planning

Section 1 Basis of Flood Control Planning

Flood control planning of the river basin where the city is located, and the position and arrangement of urban flood control in this flood control planning.

Requirements of urban master plan for flood control.

Section 2 Tasks of Flood Control Planning

Planning level year (the recent year is 2000, and the long-term should be consistent with river basin and urban planning).

According to the scale and importance of the city, the flood control standards are selected through comprehensive analysis of the technical, economic, political, social and environmental levels, or determined according to the standards stipulated by the higher authorities.

Planning principle

plan target

Section III Overall Planning of Urban Flood Control

Overview of flood control policies, countermeasures and preventive measures (discharge, storage, isolation, flood detention, etc.). ) is summarized in this city.

Make a master plan for flood control (several possible schemes, combining short-term and long-term plans).

Flood control calculation (flood dispatching, flood evolution, etc.). ).

Analysis and comparison between master plan and recommended plan.

The scale and main parameters of major flood control engineering facilities (reservoirs, dikes, flood diversion channels, flood detention areas, river regulation, sluice culverts, etc.). ).

Implementation arrangement of flood control planning.

Countermeasures and measures for over-standard flood.

Section 4 Flood Control Works and Facilities

Grades and design standards of major flood control projects.

Design scheme of main flood control engineering facilities (reservoir, dike, flood diversion channel, flood detention area, tidal storage area, tidal sluice, culvert sluice, etc.). ).

The evolution law of rivers and waterways (coastal cities) is related to the design scheme of river regulation and protection for the safety of flood control projects.

Estimation of flood control engineering quantity, quantity of main engineering materials, number of immigrants in excavated flooded areas, demolition of economic facilities, etc.

Section 5 obstacle clearing planning

Main water blocking objects in river courses and flood discharge areas and their influence on flood discharge. Principles and plans for clearing obstacles, treatment schemes and measures.

Relevant policies.

Section 6 Non-engineering flood control measures

Planning and management of floodplain development and utilization.

Safety construction planning of flood diversion and storage areas.

Planning of flood forecasting and early warning system.

Evacuation, transfer and disaster relief measures for flood areas and beach residents.

Flood control and emergency rescue arrangements.

My opinion on flood control fund and flood control insurance.

Chapter VI Urban Waterlogging Control Planning

Section 1 Basis of Waterlogging Control Planning

Urban and river basin flood control planning. The position and layout of cities in flood control planning.

Requirements of urban master plan for waterlogging control.

Section 2 Tasks of Waterlogging Control Planning

Planning level year (the recent year is 2000, and the long-term should be consistent with the overall urban planning).

The standard of waterlogging control is determined by comprehensive analysis and research according to the specific situation of the city.

Principles of planning.

Basic tasks (including urban sewage and wastewater discharge tasks).

Section III Overall Planning of Urban Waterlogging Control

Analysis of waterlogging situation. Flood and waterlogging relationship. Relationship between drainage and sewage discharge.

Countermeasures for waterlogging control (waterlogging storage, self-drainage, lifting and drainage, etc.). ).

Formulate the overall planning scheme for waterlogging control (several possible schemes, combining short-term and long-term).

Division and calculation of waterlogging control (arrange high water interception, waterlogging storage, drainage and drainage, etc.). ).

The scale and main parameters of major waterlogging control engineering facilities (intercepting ditches, drains, drainage culverts, drainage stations and waterlogging accumulation areas) (including drainage areas).

Analyze and demonstrate the overall planning scheme of waterlogging control, and recommend feasible schemes.

Implementation planning of waterlogging control project.

The fourth quarter waterlogging control engineering facilities

Grades and design standards of main waterlogging control engineering facilities (intercepting ditch, drainage ditch, sluice culvert, drainage station and waterlogging accumulation area).

Design scheme of main waterlogging control engineering facilities (new construction, expansion, reconstruction, reinforcement, hidden dangers, treatment, etc.). ).

The engineering quantity of waterlogging control engineering facilities, the quantity of main engineering materials, the number of immigrants in the area occupied by excavation and flooding, and the demolition of economic facilities.

Chapter VII Project Management Planning

Section 1 Institutions and Institutions

Manage systems and tasks.

Management organization setting, staffing and configuration.

Section 2 Management and Establishment

Hydrological observation facilities.

Main engineering facilities and building observation facilities.

Communication and information processing equipment.

Transportation, flood control and emergency rescue equipment.

Project management and maintenance facilities.

Section III Management System, System and Funds

Management rules and regulations of flood control and waterlogging elimination project.

Scheduling and operation rules of major engineering facilities.

Funds and sources for management, operation and maintenance.

Chapter VIII Environmental Impact Assessment

Present situation of urban environment.

Analysis on the effect of planning scheme on improving environment.

Analysis, solution and remedial measures and suggestions on the possible adverse impact of the planning scheme on the environment.

Preliminary assessment of environmental impact.

Chapter IX Investment and Annual Operating Expenses

Section 1 Investment

Basis of investment estimation.

Investment estimation method.

Investment estimation of flood control and waterlogging elimination engineering facilities (static investment and dynamic investment).

Installment (annual) investment arrangement.

Allocation of construction investment and financing plan.

Section 2 Annual Transportation Fee

Basis and method for estimating annual operating expenses (fuel power cost, maintenance cost, management fee, compensation fee, etc.). ).

Annual operating cost estimation.

Sources of annual operating expenses and required preferential policies.

Chapter X Benefit and Economic Evaluation

Section 1 Benefits of Flood Control and Waterlogging Control

Economic benefits (direct economic benefits and indirect economic benefits) of flood control and waterlogging control planning scheme.

Analysis and estimation of negative benefits.

Social benefit analysis.

Benefit analysis of improving ecological environment.

Section II Economic Evaluation

Economic evaluation method.

Analysis and calculation of economic effect index.

Economic rationality evaluation of planning scheme.

My opinion on the economic policy of flood control and waterlogging control. ?

attachment

I. Urban Planning Report (Excerpt)

Second, the river flood control and waterlogging elimination planning (excerpt)

Third, the geological report

Four, hydrological analysis and calculation report

Verb (abbreviation of verb) investment estimation report

6. Other important investigation and analysis reports?

attached drawing

A map of the city (including suburbs)

Two, the main river topographic map, vertical and horizontal profile.

III. Historical Flood Disaster Map

Four, the main hydrological results map

V. Current Situation and Planning Distribution Map of Flood Control and Waterlogging Engineering Facilities

Six, the main dike profile (including geology)

Seven, the main engineering facilities, architectural design

Eight, other important drawings?

Special report:

I. Important test reports

Second, the special research report

Three. Relevant documents and materials

Outline of urban flood control planning?

When will it be sunny?

Cities are the political, economic and cultural centers and transportation hubs of the country and play an important role. In order to promote urban flood control planning, promote urban flood control construction, improve urban flood control capacity and ensure urban flood control safety, this compilation outline is specially formulated. Now, a few questions about it are briefly explained as follows:

1. Cities with flood control tasks generally have problems of urban drainage and suburban drainage. This compilation outline is based on the main contents that should be included in the compilation of flood control and waterlogging control planning in ordinary cities. In order to be concise and highlight the key points, it is called flood control planning for short. In addition to flood control and waterlogging control, many cities in China also have natural disasters such as mountain torrents, ice protection in northern cities and storm surges in coastal cities. The prevention and control of the latter disaster is similar to flood control and flood fighting, and the prevention and control measures are similar and closely related. In this regard, in flood control planning, in addition to formulating flood control plans, other flood control plans mentioned above should also be studied according to the specific conditions of cities, and flood control planning reports should include relevant contents.

Second, urban flood control is the focus of river flood control and an important part of urban construction. The formulation of urban flood control planning should be based on the flood control planning of the river basin where the city is located and the overall urban planning, and the flood control planning scheme should be coordinated with the above two plans. Cities without flood control plans or with imperfect plans can make flood control plans according to the requirements of urban flood control and on the basis of studying the flood control situation of rivers, so as to provide a basis for the formulation or revision of the above two plans.

Three, urban flood control planning is the premise of urban flood control construction, should be in accordance with the requirements of relevant laws and regulations, in-depth investigation and study, to reach a certain depth. The principles of overall planning, comprehensive management, adjusting measures to local conditions, combining prevention with control and giving priority to prevention should be achieved. Among them, the flood control standards, the overall planning of flood control engineering measures and various flood control engineering facilities should be compared and studied, comprehensively analyzed and demonstrated from all aspects, and carefully determined or selected; For flood control engineering facilities and buildings, the main structural outline should be studied, and the details can be further studied in the design stage. The planning and implementation of engineering facilities in advance in the near future should be the focus of planning, and the research should be in-depth. The research of long-term engineering facilities can be relatively rough and needs further study in the future.

Four, urban flood control planning involves a number of departments related to the professional, should conscientiously implement the relevant principles and policies, abide by the relevant laws and regulations, according to the relevant professional regulations, norms for scientific research and analysis. Contradictions and problems encountered in planning should be coordinated with relevant departments and properly handled. The planning scheme should conform to the laws of nature and economy, meet the requirements of urban social and economic development, be accepted by all parties concerned, and be realistic and feasible.

Five, flood control standards are the most important indicators of urban flood control (waterlogging control) planning. High flood control standards and high urban flood control safety require more investment in flood control construction; The flood control standard is low and the investment in flood control construction is low, but the flood control safety is low and the flood risk is high. It is a very complicated and important problem to choose a reasonable and suitable flood control standard. At present, there is no unified standard for urban flood control in China. When planning urban flood control, we can make comprehensive analysis and demonstration from the political, economic, technical, social and environmental aspects according to the size of the city and its political and economic importance, and we can also refer to the existing regulations of relevant departments (urban construction, water conservancy and hydropower). Urban areas and suburbs can be protected separately. Recently, the flood control standard can be lower, and with the development of the city, it will be continuously improved. Flood control standards are generally expressed by the return period of floods, and some can also be used as defense targets for major floods.

Six, reliable and sufficient basic data, serious and scientific research on related issues, is the basis for the formulation of urban flood control planning. In-depth investigation, extensive collection and collation of natural, social, economic, environmental and other information, conscientiously sum up the experience and lessons of flood control construction over the years, analyze the problems existing in flood control and waterlogging elimination, conduct detailed hydrological analysis and calculation of flood control and waterlogging elimination, and basically find out the main geological problems. When necessary, supplementary flood investigation and geological drilling should be carried out in order to make urban flood control planning on a reliable basis, and necessary special studies should be carried out on some important issues in the planning. The specific situation of each city is different, and the above basic work can be determined according to the needs of planning work.

Seven, urban flood control planning involves a wide range, should be presided over by the municipal government or comprehensive planning, planning departments, urban construction, water conservancy, transportation and other relevant departments and important industrial and mining enterprises to participate in, according to the planning outline, division of labor and cooperation, * * * with the completion. The planning work should be gradually deepened in stages, and the relations and requirements between departments should be repeatedly negotiated and coordinated. After determining the planning scheme, it should be submitted to the municipal government for careful review and reported to the higher authorities for approval. The approved plan is the basic basis for urban flood control construction and management, and all relevant departments should follow it to give full play to the functions and benefits of urban flood control engineering facilities. Planning is not static. According to the new situation, urban flood control planning should be revised and supplemented in time and submitted to the original examination and approval authority for review.

Eight, the "Compilation Outline" is formulated according to the contents of the overall urban flood control planning and the chapter and section order of the overall planning report, and can be added or deleted according to the specific conditions of each city. Urban flood control and waterlogging control is a public welfare undertaking, and there is generally no financial benefit at this stage. We can focus on economic analysis and evaluation, omitting financial analysis and evaluation. In the part of ecological environmental impact assessment and project management, the planning stage can be simplified. If the safety construction planning of flood diversion and storage areas has been completed according to the requirements of the State Flood Control Administration and the urban construction department has completed the flood control planning, the contents of these two plans can also be simplified. The attached map only lists the basic and main ones, and cities can be increased or decreased according to the situation. Attachments and special reports can be determined according to the planning situation. ?