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SL 286-2003Guidelines for the assessment of zones of groundwater overdraft (English PDF)

地下水超采区评价导则

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Issued by

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

Level / Type

National · Mandatory

Issue date

May 12, 2003

Implementation date

August 1, 2003

Scope

SL 286-2003 is the English-translated version of 地下水超采区评价导则.

SL 286-2003 is the Chinese standard "Guidelines for the assessment of zones of groundwater overdraft".

This standard applies to: delineation of groundwater overdraft area Van Heel, overexploitation of groundwater zone classification and grading, areas of groundwater over-exploitation of dynamic monitoring, investigation, evaluation and data compilation. Issued on 2003-05-12, in force from 2003-08-01.

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Document preview — SL 286-2003

National Standard of the People's Republic of China

ICS: 13.060.10
Classification: Z50

[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 286-2003 was issued by Ministry of Water Resources of the People's Republic of China on 12 May 2003 and has been in force since 1 August 2003.

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

The document runs to 19 pages in English translation.

2 Scope Preview

SL 286-2003 falls under ICS 13.060.10, in the field of environment and health protection, safety.

This catalogue holds 44 other SL standards in that field.

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

3 About this standard

Sector: Water Resources Industry Standard

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

English translation: about 19 pages (approximate)

Chinese original: about 28,257 characters

4 Related standards

Standards on related subjects:

GB 3095-2012 — Ambient air quality standards

GB 3838-2002 — Environmental quality standards for surface water

GB 3097-1997 — Sea water quality standard

SL/T 466-2020 — Specification for ice sampling and pre-processing in the icebound season

SL 496-2010 — Determination of volatile aromatics in water by headspace-gas chromatography (HS-GC)

SL 463-2009 — Determination of phenols in water by gas chromatography

5 Classification and status

International classification (ICS): 13.060.10

Chinese Standard Classification (CCS): Z 50

Prefix SL: mandatory standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 19 pages — is available in the English PDF.

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