T/HNCAA 033-2022 Active
T/HNCAA 033-2022 Ball drop method for testing the modulus of rebound of soil foundation using techniques and standards
Abstract
Scope: This standard is applicable to the resilience modulus testing and evaluation of clay, silt, sand-gravel soil, gravel soil, and other soil subgrades. The resilience modulus testing and evaluation of other subgrades can be carried out in accordance with this standard. Main technical content: Ball drop testing technology: Based on the Hertz collision theory, a rigid sphere is dropped from a certain height to collide with the soil subgrade. By measuring the acceleration-time process during the collision, the deformation characteristics of the soil subgrade can be calculated. The main contents include: General provisions, terms and symbols, basic requirements, testing requirements, testing preparation, testing implementation, and testing reports.
General Product Information
| Document Type | Group standards |
|---|---|
| Standard Status | Active |
| Standard Code | T/HNCAA 033-2022 |
| CCS | Measurement |
| ICS | Other standards related to road engineering |
| Implement Date | 2022-06-01 |