Surface Excavation Assessment in Non-bedded Rock Mass Based on Borehole Information and Seismic Survey

One of the most popular indirect methods for investigating subsurface information is through borehole record. The obtained from a bore log will provide scenario with regard to soil and rock mass profile, stiffness material, weathering grade quality material. It wise obtain as much possible useful it any civil engineering design including its excavatability assessment. On other hand, seismic velocity also commonly used describe furnish actual profile along survey line. Seismic assumed be relevant geophysical method characterize boundary soil-rock. Although field has been widely applied in ground investigation, their applicability assessing excavation performance still debatable, especially when involves thick soil-rock interaction zone tropical region. objective this study investigate surface works. Field studies were carried out ontwo on-going sites namely Nilai Kota Tinggi involving non-bedded -bedded masses, granite. This aims present relationship between refraction boreholes effectiveness purpose. A sets boreholeswere drilled approximately on same path linesto those methods. results are evaluated Standard Penetration Test (SPT), strength index, core recovery (CR) Rock Quality Designation (RQD) information. Upon obtaining that information, trial using different size excavator machines determine productivity rate. provides materials by various type excavating machines, based investigation tools, which method.