DB/T 82-2020 in English

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Standard No:	DB/T 82-2020
Document status:	VALID
Title in English:	Active fault survey-Field geological investigation
Title in Chinese:	活动断层探察野外地质调查
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2020-03-30
Implemented on:	2020-07-01
ICS Classification:	91.120.25-Seismic and vibration protection
Chinese Classification:	P15-Engineering seismic resistance
Professional Classification:	DB-Provincial Standard
Related Keywords:	active fault fault surface scratch characteristics fault activity reverse fault strike-slip fault
Related Topics:	fault geology Production outsourcing inspection geological survey Field Instrument Checklist geological survey Explore active layer investigative activities normal fault broken field trip program Quaternary strata foreign activities field geology wild xrf field Active fault detection db-T15

本标准规定了活动断层探察野外地质调查的工作流程、工作内容、野外观测要求和成果产出。
本标准适用于活动断层填图、城市活动断层探测以及断层活动性鉴定等工作的野外地质调查。地震科学考察等也可参照使用。

Introduction

Analysis of the core content of the standard

Technical elements	Traditional methods	Requirements of this standard	Innovation points
Survey methods	Single tracing method	Combination of tracing method + crossing method	Multi-dimensional data collection
Coordinate system	Multiple coordinate systems	Unified 2000 national geodetic coordinates	Data standardization
Decade samples	Non-systematic collection	Standardized coding of 7 types of samples	Traceability management

The standard clearly requires dual verification through fault surface scratch characteristics and two-plate displacement relationship:

Use a three-segment coding system:

 Observation point: H0001 (the first letter of the project's pinyin + 4-digit serial number) Sample age: H0001-OSL-01 Trench: HTc01

Identification of faults in the covered area	Combining trench excavation with geophysical verification
Sample contamination during the period	Strictly follow the stratified sampling principle in 4.4.2

Compared with DB/T 53-2013, this version has the following major upgrades:

Added special investigation requirements for earthquake surface rupture zones
Refine the observation indicators for Quaternary volcanic rocks
Introduce the data interface specification for the digital mapping system

More samples: NB/T 47013.2-2015 YD/T 3934-2021 GB 18306-2015

Sample only — not a preview of DB/T 82-2020