Multidirectional dynamic penetration test of rock mass using RPD.
Contributes to the labor-saving and efficiency of rock mass investigation drilling! Tests can be conducted in vertical, inclined, or horizontal directions.
The "Multi-Directional Dynamic Penetration Test of Rock Mass Using RPD" is a dynamic penetration testing method that allows for simultaneous measurement of the continuous impact penetration resistance (P value) in horizontal and inclined directions of rock mass, as well as the collection of core samples, utilizing a rotary percussion drill. Only the test specifications using a medium-sized RPD or large RPD with a PS-WL (Percussion Wireline Sampler) at the drilling tip can collect core samples while measuring the P value simultaneously. Additionally, it can be applied to unconsolidated ground such as cohesive soils, sands, and gravel, as well as cement-treated ground. 【Features】 ■ The P value has a good correlation with conventional sounding test results such as N values and unconfined compressive strength (qu), making it useful as an indicator for understanding continuous changes in soil hardness and softness, as well as estimating soil physical properties such as strength characteristics. ■ The P value can be determined from the penetration time required for the drilling tip to penetrate the ground to any desired depth, along with the RPD's impact, rotation, and feed hydraulic pressure (measured by the control panel's indicators) at that time. *For more details, please refer to the PDF document or feel free to contact us.
- Company：鉱研工業
- Price：Other
