TOPIC 1: SITE INVESTIGATION FOR FOUNDATION DESIGN WEEK2 INTERPRETATION OF SI BORELOG LABORATORY STRENGTH PARAMETERS

Learning Outcomes Student should be able to: Explain how SPT are done (CO1-PO10) Derive information from the borelog. (CO1-PO10) Discuss sampling method and the laboratory tests to determine the soil properties.

Class Exercise Students shall form groups of 3 to 5 students. Each group will be given actual Soil Investigation Report. Students to study the report and derive information from it. Tasks: 1) Pick two boreholes and draw a soil profile between the two boreholes

2) Determine the following items: Type of formation Range of water table depth Range of bedrock/hard layer depth Type of sampling What are the laboratory tests

Grain Size Distribution Atterberg limits Laboratory Tests Grain Size Distribution Atterberg limits Chemical tests- Ph, organic matter, sulphate, chloride Triaxial tests Unconfined compression test on undisturbed sample – can be used to determine parameter c

Compression test on rock core – for strength determination. Consolidation test