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GB/T 17633-2019Geotextiles and geotextile-related products - Determination of water flow capacity in their plane (English PDF)

土工布及其有关产品平面内水流量的测定

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Issued by

State Administration for Market Regulation, China National Standardization Administration

Level / Type

National · Recommended

Issue date

August 30, 2019

Implementation date

March 1, 2020

Scope

GB/T 17633-2019 is the English-translated version of 土工布及其有关产品平面内水流量的测定.

GB/T 17633-2019 is the Chinese standard "Geotextiles and geotextile-related products - Determination of water flow capacity in their plane". Its scope clause reads: This standard specifies methods for determining the in-plane water flow of geotextiles and related products.

This standard applies to all types of geotextiles and related products, and other in-plane permeable materials are referred to this standard. Note 1.

If the overall surface water flow characteristics of the geotextile and its related products have been predetermined, in order to control the quality of the material, only two methods are to be determined.

Water flow to pressure and two hydraulic gradients. Note 2. Due to the long-term pressure on the product, it will have a substantial impact on the plane water flow.

The method for assessing the compressive creep properties of geotextiles and related products See ISO 25619-1 for the method. The long-term flat water flow of geotextiles and related products is evaluated in conjunction with their long-term compression creep performance tests. Its clauses include terms and definitions.

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Document preview — GB/T 17633-2019

National Standard of the People's Republic of China

ICS: 59.080.70
Classification: W 04

Issued by: State Administration for Market Regulation, China National Standardization Administration

1 Scope
2 Normative references
3 Terms and definitions
3.1 Normal pressure
3.2 In-plane flow
3.3 Plane water flow in-planewaterflowcapacity

1 Scope

This standard specifies methods for determining the in-plane water flow of geotextiles and related products.

This standard applies to all types of geotextiles and related products, and other in-plane permeable materials are referred to this standard.

Note 1. If the overall surface water flow characteristics of the geotextile and its related products have been predetermined, in order to control the quality of the material, only two methods are to be determined.

Water flow to pressure and two hydraulic gradients.

Note 2. Due to the long-term pressure on the product, it will have a substantial impact on the plane water flow. The method for assessing the compressive creep properties of geotextiles and related products

See ISO 25619-1 for the method.

The long-term flat water flow of geotextiles and related products is evaluated in conjunction with their long-term compression creep performance tests.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.

Pieces. For undated references, the latest edition (including all amendments) applies to this document.

Statistical processing of GB/T 4889 data and interpretation and estimation of mean and variance of normal distribution (GB/T 4889-2008,

ISO 2854. 1976, MOD)

GB/T 7489 Determination of dissolved oxygen in water - Iodometric method (GB/T 7489-1987, eqv ISO 5813.1983)

GB/T 13760 Geosynthetics sampling and sample preparation (GB/T 13760-2009, ISO 9862.2005, IDT)

Geosynthetics -- Determination of thickness under pressure -- Part 1 . Methods (GB/T 13761.1-2009, ISO 9863-1..2005, MOD)

GB/T 14798 Geosynthetics on-site identification (GB/T 14798-2008, ISO 10320.1999, IDT)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 Normal pressure

The plane pressure component perpendicular to the geotextile and its related products.

Note. Normal pressure is expressed in kilopascals (kPa).

3.2 In-plane flow

The flow of liquid inside the geotextile and its related products and parallel to its plane.

3.3 Plane water flow in-planewaterflowcapacity

Volume flow through a unit width of sample water and/or other liquid at a certain normal pressure and hydraulic gradient {in liters per meter second

[L/(m·s)] indicates}.

Note. The term “water conductivity” is only related to the laminar flow state and is equivalent to the in-plane water flow per unit hydraulic gradient. Because non-laminar flow conditions may occur, excellent

The term "planar water flow" is used first.

GB/T 17593.2 | GB/T 17592 | GB/T 17644 | GB/T 17630 | GB/T 17634 | […]

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 24 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 2854 · ISO 5813.1983 · ISO 9862.2005 · ISO 9863 · ISO 10320.1999

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