DB/T 71-2018 in English
VALIDActive fault survey-Measurement of faulted landform
- Issued on:2018-12-26
- Implemented on:2019-03-01
- File Format:PDF
- Delivery:Via email within 5 business days
Price(USD):
$360.00
$350.00
$350.00
| Standard No: | DB/T 71-2018 |
| Document status: | VALID |
| Title in English: | Active fault survey-Measurement of faulted landform |
| Title in Chinese: | 活动断层探察 断错地貌测量 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 5 business days |
| Issued on: | 2018-12-26 |
| Implemented on: | 2019-03-01 |
| Professional Classification: | DB-Provincial Standard |
| Related Keywords: | standard technical elements vertical fault offset landforms horizontal fault offset landforms
measurement objects fault scarps active fault survey-measurement fault scarp folds fault offset gullies |
| Related Topics: | fault
detecting animals animal detection landform automatic dose detection wrong Surprised fault principle technology gap active layer detecting animals broken animal detection Appearance Misalignment Active fault detection db-T15 |
Introduction
Analysis of the core content of the standard
| Technical elements | Vertical fault offset landforms | Horizontal fault offset landforms |
|---|---|---|
| Measurement objects | Fault scarps, folds | Fault offset gullies, terrace edges |
| Measurement method | Profile measurement/topographic measurement | Topographic measurement |
| Accuracy requirements | Plane error ≤ 5cm (1:500), vertical error ≤ 10cm | |
Key Technical Requirements
Survey Implementation Specifications
When using GNSS measuring equipment or total station, the following must be met:
- The mapping scale is preferably 1:1000~1:100
- Point spacing within 10m of the inflection point of the fault scarp is <0.2m
- LiDAR point cloud density ≥25 points/m² (DEM grid 0.2m)
Standard Evolution Analysis
This standard forms a technical complement to GB/T36072-2018, and for the first time systematically standardizes:
- Specialized measurement process for faulted landforms
- Vertical/horizontal displacement calculation method
- Requirements for the application of new technologies for aerial surveying and LiDAR
Implementation Recommendations
Key Points for Quality Control
- Use the 2000 National Geodetic Coordinate System as the unified benchmark
- Field records must include metadata such as weather and instrument parameters
- Data processing must pass GB/T18316 quality inspection
Sample only — not a preview of DB/T 71-2018

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