GB/T 18208.1-2026Post-earthquake field works - Part 1: Basic regulations (English PDF)

5.1 Job Content

5.1.1 The deployment and implementation of emergency mobile observation includes the following.

a) A mobile seismic monitoring network for strong ground motion should be established to conduct emergency mobile observations of earthquakes and ground motions;

b) It is advisable to establish a network of observation stations for crustal deformation, electromagnetic fields, and underground fluid flow to conduct post-earthquake related geodetic surveys, geophysical studies, and geological observations. Emergency flow observation of spherical chemistry.

5.1.2 All the above emergency observation data should be processed and comprehensively analyzed.

5.2 Work Requirements

5.2.1 Emergency observations shall meet the following requirements.

a) The observation instruments meet the national or industry network access technical requirements;

b) The results of observation data analysis and processing should be reported promptly;

c) If there are any abnormalities in the observation data, verify and report them in a timely manner.

5.2.2 An emergency observation report should be prepared.

6.2 Work Requirements

6.2.1 Disaster investigation should meet the following requirements.

a) Conduct on-site earthquake disaster investigation work in accordance with the provisions of GB/T 18208.3, GB/T 24335 and GB/T 24336;

b) Select appropriate survey routes and survey points;

c) Covering the locations of township and town (subdistrict) governments within the disaster area;

d) Areas covered by personnel casualties, engineering damage, and environmental damage;

e) Employ a combination of census and sampling verification methods;

f) Complete the survey of all content simultaneously at the same survey point;

g) Standardize the classification of building structure types and damage levels;

h) Initial post-earthquake disaster assessment, focusing on casualties and damage to lifeline infrastructure, buildings and structures used for the production and storage of toxic and hazardous substances. The situation is the primary factor;

i) Report major or emergency situations in a timely manner.

6.2.2 A disaster investigation report should be prepared.

7.2 Job Requirements

7.2.1 The intensity assessment shall meet the following requirements.

a) Conduct earthquake intensity assessment work in accordance with the provisions of DB/T 107, GB/T 17742 and GB/T 38226.

b) Conduct on-site assessment of seismic intensity by comprehensively utilizing the results of field investigations and measured data of instrumental seismic intensity.

c) When classifying the structural types of houses in disaster areas, for houses with the same structural form but different seismic design standards, the difference in seismic design standards shall be used as the classification method. Separately categorized.

d) When determining earthquake intensity based primarily on building damage, the damage to building structures that constitute a large proportion of the disaster area should be considered the primary criterion. in accordance with.

e) Provide the calculated results of the earthquake damage ratio and average earthquake damage index for the surveyed houses.

f) Provide isoseismal lines for seismic intensity VI (6 degrees) and above; if necessary, provide isoseismal lines for seismic intensity V (5 degrees) and below.

7.2.2 A seismic intensity assessment report should be prepared.

8.1 Job Responsibilities

8.1.1 A direct disaster loss assessment should be conducted. An assessment of indirect economic losses from earthquake disasters and post-earthquake recovery and reconstruction projects should also be carried out as needed. Initial assessment and earthquake disaster area level assessment.

8.1.2 The assessment of direct losses from earthquake disasters should include the following tasks.

a) Determine the areas most severely affected by earthquake damage and the scope of the assessment zone;

b) Determine the main engineering structure types within the assessment area;

c) Based on the survey results, calculate the damage ratio of various building structures and the indoor property loss per unit area, and select the appropriate loss ratio;

d) Verify the basic data provided by relevant departments, and calculate the direct economic losses to the building and the damage to indoor and outdoor property;

e) Determine the direct economic losses of various lifeline projects, other engineering facilities, and enterprises;

f) Assess the direct costs of earthquake relief;

g) Summarize the casualties from the earthquake.

8.1.3 The assessment of indirect economic losses from earthquake disasters should include losses from business shutdowns or reductions, regional indirect economic losses, land value losses, and industrial linkages. Losses, etc.

8.1.4 The preliminary assessment of post-earthquake recovery and reconstruction funds should include a preliminary assessment of the funds for housing, infrastructure and enterprise post-earthquake recovery and reconstruction projects.

8.1.5 Earthquake disaster area assessment should include the determination of earthquake disaster areas using administrative regions as statistical units, the classification of earthquake disaster levels, and earthquake... Disaster severity ranking.

8.2 Work Requirements

8.2.1 Disaster loss assessment work shall meet the following requirements.

a) Conduct direct loss assessment of earthquake disasters in accordance with the provisions of GB/T 18208.4;

b) Conduct indirect economic loss assessment for earthquake disasters in accordance with the provisions of GB/T 27932;

c) Conduct preliminary assessment of post-earthquake recovery and reconstruction project funding in accordance with GB/T 27933;

d) Conduct earthquake hazard classification and hazard severity ranking in accordance with GB/T 30352;

e) Use actual earthquake damage survey data; data obtained from other sources need to be verified for reliability.

f) Cover all affected areas and promptly reflect changes at different times after the earthquake;

g) Economic losses are calculated in RMB and converted to statistical constant prices.

8.2.2 An earthquake disaster loss assessment report should be prepared.

9.2 Work Requirements

9.2.1 The safety emergency assessment shall be determined in accordance with the seismic fortification category of building engineering and its importance to earthquake relief as specified in GB 50223. The object of the estimation.

9.2.2 Safety emergency assessments should be prioritized for the following earthquake-affected construction projects.

a) Important construction projects for earthquake relief and disaster recovery;

b) Construction projects that play an important role in restoring normal social order.

9.2.3 In areas that have suffered severe damage, the following construction projects should be given priority for safety emergency assessment.

a) Construction projects that urgently need to be restored to use during the earthquake emergency period, and construction projects that are already in use;

b) Construction projects used as emergency shelters and those that may endanger the safety of emergency shelters;

c) Construction projects that produce or store hazardous materials such as toxic, harmful, or radioactive contaminants.

9.2.4 A safety emergency assessment report for the construction project shall be prepared.

10.2 Work Requirements

10.2.1 Emergency scientific investigation at earthquake sites should follow the working principles of collecting rescue data, objective recording, highlighting typical cases, and conducting preliminary analysis.

10.2.2 Earthquake field emergency scientific investigation work shall be carried out in accordance with the provisions of GB/T 18208.3, GB/T 24335 and GB/T 24336.

10.2.3 Emergency scientific investigations at earthquake sites should investigate and objectively record the following information.

a) The geometric characteristics of the earthquake surface rupture zone, as well as the fault movement type, distribution, dislocations, and activity rate of the earthquake fault;

b) Classification, distribution, and scale of earthquake-related geological hazards;

c) Structural type, use, number of stories, materials, dimensions, construction year, seismic intensity, site category, and damage status of important buildings and structures. Circumstances, etc.;

d) The type, scale, construction date, fortification intensity, damage status, and scope of impact of lifeline projects;

e) The types, models, installation methods, fortification intensity, and damage conditions of production facilities and equipment;

f) Location of casualties, cause of casualties, and personal identification information.

10.2.4 Emergency scientific investigations at earthquake sites should focus on investigating and recording the following typical phenomena.

a) Surface rupture zones passing through areas of extreme seismic intensity or densely populated areas;

b) Earthquakes, tsunamis, and landslide dams that are large-scale or cause damage to people, buildings, and lifeline infrastructure;

c) Damage resulting in people being buried, large-scale severe damage, and destroyed buildings;

d) The extent of damage to lifeline infrastructure that triggered severe secondary disasters;

11.2 Work Requirements

11.2.1 On-site emergency monitoring of earthquakes, disaster investigation, intensity assessment, disaster loss assessment, and construction services should be continuously provided according to the needs of the service recipients. The phased information and final results obtained in engineering safety emergency assessment and emergency scientific investigation.

11.2.2 As needed, we should cooperate in carrying out earthquake emergency news publicity, public opinion response, and earthquake prevention and disaster reduction science popularization.

11.2.3 An earthquake emergency service work report should be prepared.

12.3 Document Archiving

12.3.1 Earthquake field work data shall be archived in accordance with the requirements of scientific and technological archives.

12.3.2 The documents to be archived should be organized according to the following categories. overview of earthquake field work, emergency observation, disaster investigation, intensity assessment, disaster loss assessment, and construction projects. The information is categorized and organized according to aspects such as safety emergency assessment, emergency scientific investigation, and emergency services.

12.3.3 Archived materials should include the following.

a) Raw data from on-site observations;

b) Various documents received and distributed on-site;

c) On-site work telephone records and superior instructions records;

d) Meeting minutes from the event;

e) All original records, drawings, and measurement records from the field work;

f) On-site photographs, recorded video materials, and remote sensing image data;

g) Work reports on all aspects of the work at the earthquake site, as well as data and information obtained from disaster investigation and emergency scientific expeditions;

h) Earthquake field work summary report.

12.3.4 All paper documents should be scanned and archived simultaneously, and an earthquake field work database should be established.