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GB/T 31438-2015Steel thin-walled sonic-testing tubes for concrete bored piles (English PDF)

混凝土灌注桩用钢薄壁声测管

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 15, 2015

Implementation date

August 1, 2015

Scope

GB/T 31438-2015 is the English-translated version of 混凝土灌注桩用钢薄壁声测管.

GB/T 31438-2015 is the Chinese standard "Steel thin-walled sonic-testing tubes for concrete bored piles". Its scope clause reads: This standard specifies the concrete piles and steel pipe wall acoustic product type, size and quality, technical requirements, test methods, inspection regulations Then, packaging, labeling, transportation and storage.

This standard applies to the concrete pile using ultrasonic acoustic tube assay used. Its clauses include terms and definitions.

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Document preview — GB/T 31438-2015

National Standard of the People's Republic of China

ICS: 93.040
Classification: P 28

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

1 Scope
2 Normative references
3 Terms and Definitions
3.1 Acoustic Pipe testingtubes
3.2 Pipe joints pipesection
3.3 Joint connector
3.4 Single-ended connector
3.5 Double-ended connector

1 Scope

This standard specifies the concrete piles and steel pipe wall acoustic product type, size and quality, technical requirements, test methods, inspection regulations

Then, packaging, labeling, transportation and storage.

This standard applies to the concrete pile using ultrasonic acoustic tube assay used.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

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

RT Test Method. Test Part 1 GB/T 228.1 metallic materials tensile

GB/T 244 metal pipe bending test method

GB/T 246 metal pipe Flattening test methods

GB/T 700 carbon structural steel

GB/T 2975 Steel and steel products for mechanical testing and sample preparation position

GB/T 7735 steel pipe eddy current testing method

GB/T 8110 gas shielded arc welding of carbon and low alloy steels

HG/T 2579 general hydraulic system with rubber O-ring material

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Acoustic Pipe testingtubes

One end of the tube section welded joints, can be connected to each other, together with the steel skeleton of pre-loaded foundation piles sink hole, through ultrasonic method is used to detect when

Road. Acoustic Pipe by the pipe sections, fittings, bottom, cover and other components.

3.2 Pipe joints pipesection

Not including connector, bottom, cover parts steel, cold-rolled high-frequency welded pipe is generally used.

3.3 Joint connector

Having a horn-like projections, protrusions have a U-shaped groove, groove with rubber ring joints.

3.4 Single-ended connector

One end of the tube section welded joints.

3.5 Double-ended connector

Both ends of the pipe sections welded joints.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

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