英国规范岩土工程勘察规范的标贯试验 [复制链接]

请问英国规范中标贯试验所用的设备仪器是不是和国内一样的，都是用的63.5kg重锤？

BS 5930:1999 Section 4
Table 4 Ð Details of dynamic probing test specifications
Test specification
Factor Unit DPL DPM15 DPM DPH DPSH
Hammer mass (M) kg 10 0.1 30 0.3 30 0.3 50 0.5 63.5 0.5
Height of fall (h) m 0.5 0.01 0.5 0.01 0.5 0.01 0.5 0.01 0.75 0.02
Mass of anvil and guide rod (max.) kg 6 18 18 18 30
Rebound (max.) % 50 50 50 50 50
Rod length, m 1 0.1 % 1 0.1 % 1 0.1 % 1 0.1 % 1 0.1 %
Mass of rod (max.) kg 3 6 6 6 8
Rod eccentricity (max.) mm 0.2 0.2 0.2 0.2 0.2
Rod OD mm 22 0.2 32 0.2 32 0.2 32 0.2 32 0.3
Rod ID mm 6 0.2 9 0.2 9 0.2 9 0.2 9 0.2
Cone apex angle degrees 90 90 90 90 90
Cone area (A) (nominal) cm2 10 15 10 15 20
Cone diameter (new) mm 35.7 0.3 43.7 0.3 35.7 0.3 43.7 0.3 50.5 0.5
Cone diameter (worn, min.) mm 34 42 34 42 49
Mantle length mm 35.7 1 43.7 1 35.7 1 43.7 1 50.5 2
Number of blows per ªxº cm penetration N10:10 N10:10 N10:10 N10:10 N20:20
Standard range of blows 3 to 50 3 to 50 3 to 50 3 to 50 5 to 100
Specific work per blow (M´g´h/A)a kJ/m 50 98 150 167 238

如何通过SPT求取N70,N60,N55?请高手指点

  

通过动能公式进行换算

我记得印度用的就是手动的。岩土勘察规范上的条文说明上有换算公式。

就是一样的