Standard No.:	GB/T 18208.1-2026
English Name:	Post-earthquake field works—Part 1：Basic regulations
Chinese Name:	地震现场工作 第1部分：基本规定
Professional Classification:	GB    National Standard
Source Content Issued by:	SAMR, SAC
Issued on:	2026-04-30
Implemented on:	2026-9-1
Status:	to be valid
Superseding:	GB/T 18208.1-2006 Post-earthquake field works - Part 1: Basic regulations
Target Language:	English
File Format:	PDF
Word Count:	10500 words
Translation Price(USD):	315.0
Delivery:	via email in 1~5 business day

GB/T 18208.1-2026 Post-earthquake field works—Part 1：Basic regulations English, Anglais, Englisch, Inglés, えいご This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered. ICS CCS National Standard of the People's Republic of China ‌GB/T 18208.1-2026 Post-earthquake field works - Part 1：Basic regulations 地震现场工作 第1部分：基本规定 Issue date: 2026-03-31 Implementation date: 2026-10-01 Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China the Standardization Administration of the People's Republic of China Contents Foreword Introduction 1 Scope 2 Normative References 3 Terms and Definitions 4 Content of Postearthquake Field Work 5 Emergency Observation 6 Disaster Investigation 7 Intensity Assessment 8 Disaster Loss Assessment 9 Emergency Safety Assessment of Construction Engineering 10 Emergency Scientific Reconnaissance 11 Emergency Service 12 Work Summary Annex A (Informative) Content of the Postearthquake Field Work Summary Report Bibliography Postearthquake field work — Part 1: Basic requirements 1 Scope This document specifies the work content and requirements for postearthquake field emergency observation, disaster investigation, intensity assessment, disaster loss assessment, emergency safety assessment of construction engineering, emergency scientific reconnaissance, emergency service and work summary. This document applies to the conduct and management of postearthquake field work during the earthquake emergency period. 2 Normative References The following documents are essential for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 17742 The Chinese seismic intensity scale GB/T 18207 (all parts) Terminology of earthquake protection and disaster mitigation GB/T 18208.3 Postearthquake field works — Part 3: Code for investigation GB/T 18208.4 Postearthquake field works — Part 4: Assessment of direct loss GB/T 24335 Classification of earthquake damage to buildings and special structures GB/T 24336 Classification of earthquake damage to lifeline engineering GB/T 27932 Assessment method for indirect economic loss of earthquake disaster GB/T 27933 Preliminary assessment for funds of postearthquake rehabilitation and reconstruction engineering GB/T 30352 Assessment of postearthquake emergency disaster situation GB/T 38226 Mapping specification of seismic intensity distribution GB 50223 Standard for classification of seismic protection of building constructions DB/T 107 Onsite assessment of seismic intensity 3 Terms and Definitions For the purposes of this document, the terms and definitions given in GB/T 18207 (all parts) and the following apply. 3.1 [postearthquake field] emergency safety assessment of construction engineering During the earthquake emergency period, the evaluation of the seismic capacity of a construction engineering project by examining its earthquakeinduced damage, and the assessment and determination of its safety under expected earthquake actions. 3.2 [earthquake] emergency scientific reconnaissance During the earthquake emergency period, a rapid onsite investigation and preliminary analysis conducted in the postearthquake field to prevent the loss of typical earthquake damage phenomena that may be obscured by earthquake rescue and relief operations, etc. 3.3 [earthquake] emergency service Actions taken during different phases of the earthquake emergency to provide decisionmaking information for the government and the public regarding earthquake relief, postearthquake recovery and reconstruction, etc. 3.4 earthquakecaused direct loss Casualties, direct economic losses and earthquake relief expenditures caused by an earthquake. [Source: GB/T 18208.4-2011, 3.1, modified] 3.5 earthquakecaused indirect economic loss Economic losses resulting from the impact of an earthquake on socioeconomic activities indirectly. [Source: GB/T 27932-2011, 3.1, modified] 3.6 grade of earthquake disaster area The level of disaster severity determined within the disaster area, using administrative divisions as units, by comprehensively considering indicators such as casualties, economic losses, degree of building damage and earthquakeinduced geological hazards. [Source: GB/T 30352-2013, 3.3] 3.7 cost of postearthquake rehabilitation of engineering structures The amount of funds required for the reinforcement or reconstruction of earthquakedamaged buildings, infrastructure and enterprises according to local seismic fortification requirements. [Source: GB/T 27933-2011, 3.1] 4 Content of Postearthquake Field Work 4.1 Postearthquake field work includes emergency observation, disaster investigation, intensity assessment, disaster loss assessment, emergency safety assessment of construction engineering, emergency scientific reconnaissance, emergency service and work summary. 4.2 For earthquakes for which the state has activated an earthquake disaster emergency response, field work shall be carried out according to the provisions of Table 1. Table 1 — Correspondence between earthquake disaster emergency response levels and postearthquake field work content 4.3 For earthquakes for which the state has not activated an earthquake disaster emergency response, field work may be carried out as needed. 5 Emergency Observation 5.1 Work content 5.1.1 The deployment and implementation of emergency mobile observation include the following: a) Seismic and strongmotion mobile observation networks shall be deployed to carry out emergency mobile observation of earthquakes and ground motion; b) Mobile observation networks for crustal deformation, electromagnetism and subsurface fluids should be deployed to carry out postearthquake emergency mobile observation of related geodetic, geophysical and geochemical parameters. 5.1.2 All of the above emergency observation data shall be processed and comprehensively analysed. 5.2 Work requirements 5.2.1 Emergency observation shall comply with the following requirements: a) Observation instruments shall meet the national or industry technical requirements for network access; b) The results of observation data analysis and processing shall be reported in a timely manner; c) If anomalies are found in the observation data, they shall be verified and reported in a timely manner. 5.2.2 An emergency observation work report shall be prepared. 6 Disaster Investigation 6.1 Work content Disaster investigation should include the following: a) The extent of the earthquake disaster area and the area where the earthquake was felt; b) Casualties caused by the earthquake; c) Damage to buildings (structures) and property losses caused by the earthquake; d) Damage and impact on lifeline engineering, major projects and important infrastructure caused by the earthquake; e) Secondary disasters caused by the earthquake, such as floods, fires, explosions, epidemics, toxic substance leaks and radioactive material contamination; f) Damage and impact on the natural and ecological environment caused by earthquakeinduced geological hazards such as landslides, collapses, mudslides, barrier lakes, liquefaction of sand, soft soil subsidence and ground fissures, as well as tsunamis; g) Disruption and impact on social order and production order caused by the earthquake; h) The observation environment of intensity rapidreporting stations and strongmotion observation stations that are critically influential for determining the disaster situation. 6.2 Work requirements 6.2.1 Disaster investigation shall comply with the following requirements: a) Postearthquake field disaster investigation shall be carried out in accordance with the provisions of GB/T 18208.3, GB/T 24335 and GB/T 24336; b) Survey routes and points shall be selected rationally;