DL/T 5494-2014 in English

VALID

Code for seismic safety evaluation of power engineering

Issued on:2014-10-15
Implemented on:2015-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $1,870.00
$1,814.00

Standard No:	DL/T 5494-2014
Document status:	VALID
Title in English:	Code for seismic safety evaluation of power engineering
Title in Chinese:	电力工程场地地震安全性评价规程
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2014-10-15
Implemented on:	2015-03-01
Professional Classification:	DL-Electricity
Related Keywords:	seismic safety evaluation standard technical modules key requirements innovation points regional evaluation extension ≥150km paleo-earthquake research near-field evaluation extension ≥25km power engineering introduction analysis seismic motion parameters
Related Topics:	Safety Evaluation Underground Engineering Test Site site Safety Evaluation Process Safety Evaluation Process Safety Evaluation Holocene Earthquake Evaluation Seismic wave field Seismic wave field electric field No safety evaluation Power Engineering DL/T 5494-2014 Calibration of Land Price Regulations Lighthouse Project Evaluation Combined determination of liquid limit and plastic limit China Electric Power

Introduction

Analysis of the core content of the standard

Technical modules	Key requirements	Innovation points
Regional evaluation	Extension ≥150km, scale 1:1 million	Introduction of structural analogy and paleo-earthquake research
Near-field evaluation	Extension ≥25km, scale 1:250,000	Segmental identification technology of active faults
Ground motion parameters	Provide 3 probability levels (63%/10%/2%)	Application of site-related response spectrum theory

Key technical requirements

Site classification standards

According to the results of the shear wave velocity test, the sites are divided into:

Class I site: Vs＞500m/s (bedrock)
Class II site: 250＜Vs≤500m/s
Class III site: 150＜Vs≤250m/s

Special fortification projects need to provide seismic motion parameters of different depths of underground structures.

Ground motion attenuation model

The elliptical attenuation model considering near-field saturation is adopted: lgY = C1 + C2M + C3M² + C4lg(R+R0(M)) + C5R ± ε Among them, R0(M)=C6exp(C7M) reflects the near-field saturation characteristics of large earthquakes.

Implementation points

Potential source area division

Based on 7 judgment marks: 1) Earthquake gap 2) Active block boundary 3) Quaternary basin 4) Special parts of faults need to use 3D GIS technology for spatial analysis.

Engineering Application Cases

A ±800kV converter station project: - Identified two Holocene active faults - Determined the site characteristic period of 0.45s - Used time history analysis method for additional verification

More samples: GB 18306-2015 GB 50021-2001(2009) NB/T 47013.2-2015

Sample only — not a preview of DL/T 5494-2014

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