Identification Of Rippability And Bedrock Depth Using Seismic Refraction
- Geophysics Section, School of Physics, 11800 Universiti Sains Malaysia, Pulau Pinang (Malaysia)
- Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor (Malaysia)
Spatial variability of the bedrock with reference to the ground surface is vital for many applications in geotechnical engineering to decide the type of foundation of a structure. A study was done within the development area of Mutiara Damansara utilising the seismic refraction method using ABEM MK8 24 channel seismograph. The geological features of the subsurface were investigated and velocities, depth to the underlying layers were determined. The seismic velocities were correlated with rippability characteristics and borehole records. Seismic sections generally show a three layer case. The first layer with velocity 400-600 m/s predominantly consists of soil mix with gravel. The second layer with velocity 1600-2000 m/s is suggested to be saturated and weathered area. Both layers forms an overburden and generally rippable. The third layer represents granite bedrock with average depth and velocity 10-30 m and >3000 m/s respectively and it is non-rippable. Steep slope on the bedrock are probably the results of shear zones.
- OSTI ID:
- 21511422
- Journal Information:
- AIP Conference Proceedings, Vol. 1325, Issue 1; Conference: 4. Asian physics international symposium, Bandung, West Java (Indonesia), 12-13 Oct 2010; Other Information: DOI: 10.1063/1.3537881; (c) 2010 American Institute of Physics; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
Similar Records
Seismic refraction and downhole velocity surveys for investigation of the Tinemaha Dam Inyo County, California
Numerical simulation of ground-water flow through glacial deposits and crystalline bedrock in the Mirror Lake area, Grafton County, New Hampshire