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SL 546-2013Classification for drought information (English PDF)

旱情信息分类

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Issued by

Ministry of Water Resources of the People's Republic of China

Level / Type

National · Mandatory

Issue date

January 1, 2013

Implementation date

January 1, 2013

Scope

SL 546-2013 is the English-translated version of 旱情信息分类.

SL 546-2013 is the Chinese standard "Classification for drought information". This standard specifies: drought information meaning selection principle, classified according to the drought information structure, and gives information about the content of drought and drought by type and scope of information classification and so on.

It was issued by Ministry of Water Resources of the People's Republic of China. It cites 2 other standards.

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Document preview — SL 546-2013

National Standard of the People's Republic of China

ICS: 27.140
Classification: P55

Issued by: Ministry of Water Resources of the People's Republic of China

[Preview only]
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Soil Erosion Type Division
3.1 Grade 1 Type Area
3.2 Grade II Type Area
3.3 Scope and Feature
4 Soil Erosion Intensity Graduation
4.1 INTENSITY GRADUATION OF WATER EROSION AND GRAVITY EROSION
4.2 WIND EROSION AND MIXING EROSION (DEBRIS FLOW) INTENSITY GRADUATION
4.3 Layout of Multipurpose Tunnel
5 Soil Erosion Degree Graduation
5.1 Selection of Pressure State
5.2 Sectional Shape
5.3 Sectional Dimension
6 Hydraulic Design of Tunnel
6.1 Calculation Principle
6.2 Anti-cavitation Design of Hydraulic Tunnel with High Velocity
7 Design of Soil Tunnel
7.1 Support and Lining of Soil Tunnel
7.2 Joint Division of Soil Tunnel Lining and its Anti-Seepage and Waterstop
8 Design of Tunnel Section at Adverse Geology
9 Tunnel Support and Lining
9.1 General Requirements
9.2 Loads and Load Combinations
9.3 Concrete and Reinforced Concrete lining
9.4 Prestressed Concrete Lining
9.5 Unlined and Anchor-shotcrete Lined Tunnel
9.6 Design of Reinforced Concrete Lining Bifurcated Tunnel
9.7 Joints on Lining
9.8 Design of Water Retaining Jam

1 Foreword

SL 546-2013 is issued by Ministry of Water Resources of the People's Republic of China.

The SL prefix, without a suffix, marks a mandatory standard: within its scope, compliance is required.

The document runs to 14 pages in English translation.

2 Scope Preview

This standard specifies: drought information meaning selection principle, classified according to the drought information structure, and gives information about the content of drought and drought by type and scope of information classification and so on.

SL 546-2013 falls under ICS 27.140, in the field of energy and heat transfer engineering.

This catalogue holds 100 other SL standards in that field.

In this catalogue, SL standards carry edition years from 1989 to 2020.

3 Normative references

The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document.

SL 249-2012 — Code for China river

SL 259-2000 — Code for china reservoir name

4 About this standard

Issued by: Ministry of Water Resources of the People's Republic of China

English translation: about 14 pages (approximate)

5 Related standards

Standards on related subjects:

GB 50788-2012 — Technical code for water supply and sewerage of urban

SL 314-2004 — Design specification for roller compacted concrete dams

SL 282-2003 — Design specification for concrete arch dams

SL/T 551-2024 — Technical specification for safety monitoring of earth-rock dams

SL/Z 552-2012 — The guide for water use index assessment

SL/Z 549-2012 — Technical guides for audit of water use

6 Classification and status

International classification (ICS): 27.140

Chinese Standard Classification (CCS): P 55

Prefix SL: mandatory standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

Referenced standards

Normative references

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