survey
Discussion
a) The value of bulk density is 1.7921 × 10-3 kg/mm3 and the moisture content value is 0.31 %.
b) Based on our visual observation, the colour of the soil sample that we had was light brownish. The texture of the soil was not too dry and either wet, it is loose because it contains broken rock particles or they are the resistant components of rocks broken down which it has rotund shape.
Conclusion
1) The possible sources of error which made during experiment was first of all , choosing the wrong place to dig which is like muddy because it contains water in underground which will cause the soil to be wet and it is not suitable for soil testing.
Second, the position of placing the hand auger should right into the middle so that it can avoid from digging the hole from becoming bigger and the person who handling the hand auger should be in stable to avoid from falling.
Moreover, we should ensure the unwanted soil like top layer which is covered with grass and black soil should not mix up with the soil sample.
2) Difference between disturb soil and undisturbed soil
Disturb soil Undisturb soil do not retain the in-situ properties of the soil during the collection process.
retain the structural integrity of the in-situ soil
engineers and geologists collect are disturbed samples because they are easier to collect
Collecting a perfectly undisturbed sample is difficult commonly test disturbed soil samples for soil type and texture, moisture content, and nutrient and contaminant analysis,
to determine the geotechnical properties of strength, permeability, compressibility and fracture patterns
a) The value of bulk density is 1.7921 × 10-3 kg/mm3 and the moisture content value is 0.31 %.
b) Based on our visual observation, the colour of the soil sample that we had was light brownish. The texture of the soil was not too dry and either wet, it is loose because it contains broken rock particles or they are the resistant components of rocks broken down which it has rotund shape.
Conclusion
1) The possible sources of error which made during experiment was first of all , choosing the wrong place to dig which is like muddy because it contains water in underground which will cause the soil to be wet and it is not suitable for soil testing.
Second, the position of placing the hand auger should right into the middle so that it can avoid from digging the hole from becoming bigger and the person who handling the hand auger should be in stable to avoid from falling.
Moreover, we should ensure the unwanted soil like top layer which is covered with grass and black soil should not mix up with the soil sample.
2) Difference between disturb soil and undisturbed soil
Disturb soil Undisturb soil do not retain the in-situ properties of the soil during the collection process.
retain the structural integrity of the in-situ soil
engineers and geologists collect are disturbed samples because they are easier to collect
Collecting a perfectly undisturbed sample is difficult commonly test disturbed soil samples for soil type and texture, moisture content, and nutrient and contaminant analysis,
to determine the geotechnical properties of strength, permeability, compressibility and fracture patterns