Stress-Strain Behavior of Parit Nipah Peat

Abstract

Stress can produce a deformation because real material is not rigid, the deformation will measure the strain. Stress-strain is important in determining peat behaviour. Peat cannot support too much load on it because of peat have very low strength, high compressibility and long-term settlement. The objective of this study is to determine the behaviour of stress-strain characteristic using different test. The undisturbed samples were collected at Parit Nipah, Batu Pahat, Johore, Malaysia. The tests are direct simple shear and direct shear box. These methods cover the determination of the stress-strain relationship of peat and to investigate the behaviour of peat. Normal stresses are 12.5, 25, 50 and 100 kPa with 0.1 mm/min rate of shear. This study is to know the stress-strain between direct simple shear test and direct shear test based on peat specimens of hemic. The test results will contribute and establish the drained shear characteristic of testing peat. It shows that direct simple shear test stress-strain is increasing clearly than direct shear test. Besides that, direct simple shear is suitable to use on peat soil rather than direct shear box. This research can help the geotechnical engineers and can be used in the development of foundation and as well as constructions.