Soil investigation / Zulhelmy Za'aba

Soil investigation is the first work that needs to be performed by the contractor. This is because the result will be effect on the building design. The intent of this study is to have a better understanding of the functions and methods of soil investigation, to know the problem that there encounter during the test and it solution as well as to know the approval needed in the test construction. There are various test and methods used in conducting soil investigation depend on what desire information that we want to know. The common methods that are used are the Wash Boring method. It is used to collect samples from the soil. This test used a machine capable of digging up to 60 meter and the sample are taken by using the split spoon that are more known as SPT (Standard Penetration Test). This test is also used to assess the situation of the underground whether the land has an empty space (cavity) or not. By the sample that we got it will be sent to the laboratory for test and to known the characteristic of the soil. There is another simple way that is by using Mackintosh Probe. This test was conducted to test the strength of the soil and used to collect used to guide the construction of a small project. At last by doing the soil investigation we can identify the type of the soil and we can make an appropriate design mostly on the C & S design as well as the type of the material that can be used based on the result of soil investigation.