PEC EPE Geological case studies
PEC EPE Geological · Put your knowledge to work in context.
The Engineering Practice Examination (EPE) is a Pakistan Engineering Council (PEC) assessment referenced in PEC's Continuing Professional Development (CPD) section, which links to an EPE Guidebook, a policy for redressal of EPE grievances, and a published result for a past sitting (16th EPE, Fall-2020). This page covers the Geological Engineering discipline. The PEC EPE Geological case studies are 5 cases and about 4,162 words.
1Karstic Limestone Dam Foundation: Grout Curtain Adequacy and Cavity Treatment
A 45 m high RCC dam is planned across a perennial river on thick-bedded Eocene limestone. Twelve boreholes to 70 m depth show the upper 20 m of the right abutment to be intensely karstified: water-pressure tests return 35–60 Lugeon in that interval, falling to 2–4 Lugeon below 45 m.
843 words, about 4 min2Highway Rock Cut: Kinematic Admissibility and Permanent Support of a Wedge Failure
A 2.4 km section of a new dual carriageway requires an 8 m high rock cut through interbedded sandstone and shale. The cut face is oriented 060/85.
859 words, about 4 min3Swelling Claystone in a Headrace Tunnel: Support Redesign Under Squeezing Ground
A 3.5 km long, 6.0 m diameter headrace tunnel is being driven through Eocene flysch comprising alternating siltstone and claystone. X-ray diffraction on claystone samples returns 15–20% smectite, and laboratory swelling tests give a swelling pressure of 1.2 MPa.
778 words, about 4 min4Landfill Siting Over Glacial Till: Liner Adequacy, Fault Proximity and Site Selection
A 25 ha municipal solid waste landfill is proposed on a 12 m thick sequence of low-permeability glacial till overlying a sand and gravel aquifer. The water table is 12 m below ground, and groundwater flows southeast toward a village supply well field 2 km away.
908 words, about 5 min5Bridge Foundations in Liquefiable Alluvium: Triggering Analysis and Foundation Choice
A 6-span, 240 m long road bridge is to cross a river on alluvial deposits. Pier loads are 8 MN, and spread footings at 3 m depth are proposed.
774 words, about 4 min